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(D. |M. M. W. X. \. e. h. n. v. z. . P. ʥ. . ѷ. L. . y. H. '. T/ / F!/ W/ h/ / / / e/ W/ 2/ 0 % 0 0 !D0 G0 J0 M0 U0 1p0 r0 ~0 n0 0 :0 0 0 0 0 1 1 2 p2 2 d3 3 l3fPA4ft4f4f34f5f9L5gTT5g\5gf5gg5g5g5g(6g6gژ6gɞ6g6g6gV6g6g6g6g6g6g%6g, 7g7gU+7g.7g<7gj7gt7gR7gh7g7g7g8g8g"8gb8gfy8g8g8gt9g9g9g9g5:g7:g(b:go:g:g:g:g:g:gH;g);g.;gg8;g#B;gw;gx;g;gJ;gE;g;g#<gt <g <g<g,<gI<g?S<gTV<gBr<gz<g<g<gP<g<g<gL<gJ>gd[>>// Copyright 2013 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview * This is a component extension that implements a text-to-speech (TTS) * engine powered by Google's speech synthesis API. * * This is an "event page", so it's not loaded when the API isn't being used, * and doesn't waste resources. When a web page or web app makes a speech * request and the parameters match one of the voices in this extension's * manifest, it makes a request to Google's API using Chrome's private key * and plays the resulting speech using HTML5 audio. */ /** * The main class for this extension. Adds listeners to * chrome.ttsEngine.onSpeak and chrome.ttsEngine.onStop and implements * them using Google's speech synthesis API. * @constructor */ function TtsExtension() {} TtsExtension.prototype = { /** * The url prefix of the speech server, including static query * parameters that don't change. * @type {string} * @const * @private */ SPEECH_SERVER_URL_: 'https://www.google.com/speech-api/v2/synthesize?' + 'enc=mpeg&client=chromium', /** * A mapping from language and gender to voice name, hardcoded for now * until the speech synthesis server capabilities response provides this. * The key of this map is of the form '-'. * @type {Object} * @private */ LANG_AND_GENDER_TO_VOICE_NAME_: { 'en-gb-male': 'rjs', 'en-gb-female': 'fis', }, /** * The arguments passed to the onSpeak event handler for the utterance * that's currently being spoken. Should be null when no object is * pending. * * @type {?{utterance: string, options: Object, callback: Function}} * @private */ currentUtterance_: null, /** * The HTML5 audio element we use for playing the sound served by the * speech server. * @type {HTMLAudioElement} * @private */ audioElement_: null, /** * A mapping from voice name to language and gender, derived from the * manifest file. This is used in case the speech synthesis request * specifies a voice name but doesn't specify a language code or gender. * @type {Object<{lang: string, gender: string}>} * @private */ voiceNameToLangAndGender_: {}, /** * This is the main function called to initialize this extension. * Initializes data structures and adds event listeners. */ init: function() { // Get voices from manifest. var voices = chrome.app.getDetails().tts_engine.voices; for (var i = 0; i < voices.length; i++) { this.voiceNameToLangAndGender_[voices[i].voice_name] = { lang: voices[i].lang, gender: voices[i].gender }; } // Initialize the audio element and event listeners on it. this.audioElement_ = document.createElement('audio'); document.body.appendChild(this.audioElement_); this.audioElement_.addEventListener( 'ended', this.onStop_.bind(this), false); this.audioElement_.addEventListener( 'canplaythrough', this.onStart_.bind(this), false); // Install event listeners for the ttsEngine API. chrome.ttsEngine.onSpeak.addListener(this.onSpeak_.bind(this)); chrome.ttsEngine.onStop.addListener(this.onStop_.bind(this)); chrome.ttsEngine.onPause.addListener(this.onPause_.bind(this)); chrome.ttsEngine.onResume.addListener(this.onResume_.bind(this)); }, /** * Handler for the chrome.ttsEngine.onSpeak interface. * Gets Chrome's Google API key and then uses it to generate a request * url for the requested speech utterance. Sets that url as the source * of the HTML5 audio element. * @param {string} utterance The text to be spoken. * @param {Object} options Options to control the speech, as defined * in the Chrome ttsEngine extension API. * @private */ onSpeak_: function(utterance, options, callback) { // Truncate the utterance if it's too long. Both Chrome's tts // extension api and the web speech api specify 32k as the // maximum limit for an utterance. if (utterance.length > 32768) utterance = utterance.substr(0, 32768); try { // First, stop any pending audio. this.onStop_(); this.currentUtterance_ = { utterance: utterance, options: options, callback: callback }; var lang = options.lang; var gender = options.gender; if (options.voiceName) { lang = this.voiceNameToLangAndGender_[options.voiceName].lang; gender = this.voiceNameToLangAndGender_[options.voiceName].gender; } if (!lang) lang = navigator.language; // Look up the specific voice name for this language and gender. // If it's not in the map, it doesn't matter - the language will // be used directly. This is only used for languages where more // than one gender is actually available. var key = lang.toLowerCase() + '-' + gender; var voiceName = this.LANG_AND_GENDER_TO_VOICE_NAME_[key]; var url = this.SPEECH_SERVER_URL_; chrome.systemPrivate.getApiKey((function(key) { url += '&key=' + key; url += '&text=' + encodeURIComponent(utterance); url += '&lang=' + lang.toLowerCase(); if (voiceName) url += '&name=' + voiceName; if (options.rate) { // Input rate is between 0.1 and 10.0 with a default of 1.0. // Output speed is between 0.0 and 1.0 with a default of 0.5. url += '&speed=' + (options.rate / 2.0); } if (options.pitch) { // Input pitch is between 0.0 and 2.0 with a default of 1.0. // Output pitch is between 0.0 and 1.0 with a default of 0.5. url += '&pitch=' + (options.pitch / 2.0); } // This begins loading the audio but does not play it. // When enough of the audio has loaded to begin playback, // the 'canplaythrough' handler will call this.onStart_, // which sends a start event to the ttsEngine callback and // then begins playing audio. this.audioElement_.src = url; }).bind(this)); } catch (err) { console.error(String(err)); callback({ 'type': 'error', 'errorMessage': String(err) }); this.currentUtterance_ = null; } }, /** * Handler for the chrome.ttsEngine.onStop interface. * Called either when the ttsEngine API requests us to stop, or when * we reach the end of the audio stream. Pause the audio element to * silence it, and send a callback to the ttsEngine API to let it know * that we've completed. Note that the ttsEngine API manages callback * messages and will automatically replace the 'end' event with a * more specific callback like 'interrupted' when sending it to the * TTS client. * @private */ onStop_: function() { if (this.currentUtterance_) { this.audioElement_.pause(); this.currentUtterance_.callback({ 'type': 'end', 'charIndex': this.currentUtterance_.utterance.length }); } this.currentUtterance_ = null; }, /** * Handler for the canplaythrough event on the audio element. * Called when the audio element has buffered enough audio to begin * playback. Send the 'start' event to the ttsEngine callback and * then begin playing the audio element. * @private */ onStart_: function() { if (this.currentUtterance_) { if (this.currentUtterance_.options.volume !== undefined) { // Both APIs use the same range for volume, between 0.0 and 1.0. this.audioElement_.volume = this.currentUtterance_.options.volume; } this.audioElement_.play(); this.currentUtterance_.callback({ 'type': 'start', 'charIndex': 0 }); } }, /** * Handler for the chrome.ttsEngine.onPause interface. * Pauses audio if we're in the middle of an utterance. * @private */ onPause_: function() { if (this.currentUtterance_) { this.audioElement_.pause(); } }, /** * Handler for the chrome.ttsEngine.onPause interface. * Resumes audio if we're in the middle of an utterance. * @private */ onResume_: function() { if (this.currentUtterance_) { this.audioElement_.play(); } } }; (new TtsExtension()).init(); PNG  IHDRaIDATx^MKQƟ{;cQ-,[>*CIEHV.$!XEҢ$mM"XQ~$"*JQ9fS4L{?{.g3s8@ n'椝a 뚪s7} =p+9d&=>$D zّahh`{'ERGMF3kspoyC+L~\Bd bhXk"-ܿZsF(?,PȨeN J+OA&hp_2/PO_HnIENDB`PNG  IHDRaIDATx^MkEg}&i"F[0JBQLk~.\J݈ d! 5VbQ-lMZ#5 5ͽw朑;̢s6<@x[T'1Sޏ 3%ut CbX}= }_ou/BP ,E2_pރ8b,૞AWTI2ѝtp/"e_F j[d4tcS\YYylc;ÿk٬Ģ5HءJ}a?_Bw Qݏ".=6{v'gs K_s zj< (#*N,qf-"6nġj,ࢆ@D!n5<103K )kǾ񇸴|-5Ӓ@HM} 1NjgV*AHI>v{׋8c<75I,L, p0胜'Nv0r]M,]]VH W*fLr=}3_G|&kW>8 %\Gw3nٯ. !33hhT_o> |$ 0#e1кQj\ W."$@S\j'o\=IENDB`// Copyright (c) 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. (function() { 'use strict'; /** @const */ var BookmarkList = bmm.BookmarkList; /** @const */ var BookmarkTree = bmm.BookmarkTree; /** @const */ var Command = cr.ui.Command; /** @const */ var LinkKind = cr.LinkKind; /** @const */ var ListItem = cr.ui.ListItem; /** @const */ var Menu = cr.ui.Menu; /** @const */ var MenuButton = cr.ui.MenuButton; /** @const */ var Splitter = cr.ui.Splitter; /** @const */ var TreeItem = cr.ui.TreeItem; /** * An array containing the BookmarkTreeNodes that were deleted in the last * deletion action. This is used for implementing undo. * @type {?{nodes: Array>, target: EventTarget}} */ var lastDeleted; /** * * Holds the last DOMTimeStamp when mouse pointer hovers on folder in tree * view. Zero means pointer doesn't hover on folder. * @type {number} */ var lastHoverOnFolderTimeStamp = 0; /** * Holds a function that will undo that last action, if global undo is enabled. * @type {Function} */ var performGlobalUndo; /** * Holds a link controller singleton. Use getLinkController() rarther than * accessing this variabie. * @type {cr.LinkController} */ var linkController; /** * New Windows are not allowed in Windows 8 metro mode. */ var canOpenNewWindows = true; /** * Incognito mode availability can take the following values: , * - 'enabled' for when both normal and incognito modes are available; * - 'disabled' for when incognito mode is disabled; * - 'forced' for when incognito mode is forced (normal mode is unavailable). */ var incognitoModeAvailability = 'enabled'; /** * Whether bookmarks can be modified. * @type {boolean} */ var canEdit = true; /** * @type {TreeItem} * @const */ var searchTreeItem = new TreeItem({ bookmarkId: 'q=' }); /** * Command shortcut mapping. * @const */ var commandShortcutMap = cr.isMac ? { 'edit': 'Enter', // On Mac we also allow Meta+Backspace. 'delete': 'U+007F U+0008 Meta-U+0008', 'open-in-background-tab': 'Meta-Enter', 'open-in-new-tab': 'Shift-Meta-Enter', 'open-in-same-window': 'Meta-Down', 'open-in-new-window': 'Shift-Enter', 'rename-folder': 'Enter', // Global undo is Command-Z. It is not in any menu. 'undo': 'Meta-U+005A', } : { 'edit': 'F2', 'delete': 'U+007F', 'open-in-background-tab': 'Ctrl-Enter', 'open-in-new-tab': 'Shift-Ctrl-Enter', 'open-in-same-window': 'Enter', 'open-in-new-window': 'Shift-Enter', 'rename-folder': 'F2', // Global undo is Ctrl-Z. It is not in any menu. 'undo': 'Ctrl-U+005A', }; /** * Mapping for folder id to suffix of UMA. These names will be appeared * after "BookmarkManager_NavigateTo_" in UMA dashboard. * @const */ var folderMetricsNameMap = { '1': 'BookmarkBar', '2': 'Other', '3': 'Mobile', 'q=': 'Search', 'subfolder': 'SubFolder', }; /** * Adds an event listener to a node that will remove itself after firing once. * @param {!Element} node The DOM node to add the listener to. * @param {string} name The name of the event listener to add to. * @param {function(Event)} handler Function called when the event fires. */ function addOneShotEventListener(node, name, handler) { var f = function(e) { handler(e); node.removeEventListener(name, f); }; node.addEventListener(name, f); } // Get the localized strings from the backend via bookmakrManagerPrivate API. function loadLocalizedStrings(data) { // The strings may contain & which we need to strip. for (var key in data) { data[key] = data[key].replace(/&/, ''); } loadTimeData.data = data; i18nTemplate.process(document, loadTimeData); searchTreeItem.label = loadTimeData.getString('search'); searchTreeItem.icon = isRTL() ? 'images/bookmark_manager_search_rtl.png' : 'images/bookmark_manager_search.png'; } /** * Updates the location hash to reflect the current state of the application. */ function updateHash() { window.location.hash = bmm.tree.selectedItem.bookmarkId; updateAllCommands(); } /** * Navigates to a bookmark ID. * @param {string} id The ID to navigate to. * @param {function()=} opt_callback Function called when list view loaded or * displayed specified folder. */ function navigateTo(id, opt_callback) { window.location.hash = id; var sameParent = bmm.list.parentId == id; if (!sameParent) updateParentId(id); updateAllCommands(); var metricsId = folderMetricsNameMap[id.replace(/^q=.*/, 'q=')] || folderMetricsNameMap['subfolder']; chrome.metricsPrivate.recordUserAction( 'BookmarkManager_NavigateTo_' + metricsId); if (opt_callback) { if (sameParent) opt_callback(); else addOneShotEventListener(bmm.list, 'load', opt_callback); } } /** * Updates the parent ID of the bookmark list and selects the correct tree item. * @param {string} id The id. */ function updateParentId(id) { // Setting list.parentId fires 'load' event. bmm.list.parentId = id; // When tree.selectedItem changed, tree view calls navigatTo() then it // calls updateHash() when list view displayed specified folder. bmm.tree.selectedItem = bmm.treeLookup[id] || bmm.tree.selectedItem; } // Process the location hash. This is called by onhashchange and when the page // is first loaded. function processHash() { var id = window.location.hash.slice(1); if (!id) { // If we do not have a hash, select first item in the tree. id = bmm.tree.items[0].bookmarkId; } var valid = false; if (/^e=/.test(id)) { id = id.slice(2); // If hash contains e=, edit the item specified. chrome.bookmarks.get(id, function(bookmarkNodes) { // Verify the node to edit is a valid node. if (!bookmarkNodes || bookmarkNodes.length != 1) return; var bookmarkNode = bookmarkNodes[0]; // After the list reloads, edit the desired bookmark. var editBookmark = function() { var index = bmm.list.dataModel.findIndexById(bookmarkNode.id); if (index != -1) { var sm = bmm.list.selectionModel; sm.anchorIndex = sm.leadIndex = sm.selectedIndex = index; scrollIntoViewAndMakeEditable(index); } }; var parentId = assert(bookmarkNode.parentId); navigateTo(parentId, editBookmark); }); // We handle the two cases of navigating to the bookmark to be edited // above. Don't run the standard navigation code below. return; } else if (/^q=/.test(id)) { // In case we got a search hash, update the text input and the // bmm.treeLookup to use the new id. setSearch(id.slice(2)); valid = true; } // Navigate to bookmark 'id' (which may be a query of the form q=query). if (valid) { updateParentId(id); } else { // We need to verify that this is a correct ID. chrome.bookmarks.get(id, function(items) { if (items && items.length == 1) updateParentId(id); }); } } // Activate is handled by the open-in-same-window-command. function handleDoubleClickForList(e) { if (e.button == 0) $('open-in-same-window-command').execute(); } // The list dispatches an event when the user clicks on the URL or the Show in // folder part. function handleUrlClickedForList(e) { getLinkController().openUrlFromEvent(e.url, e.originalEvent); chrome.bookmarkManagerPrivate.recordLaunch(); } function handleSearch(e) { setSearch(this.value); } /** * Navigates to the search results for the search text. * @param {string} searchText The text to search for. */ function setSearch(searchText) { if (searchText) { // Only update search item if we have a search term. We never want the // search item to be for an empty search. delete bmm.treeLookup[searchTreeItem.bookmarkId]; var id = searchTreeItem.bookmarkId = 'q=' + searchText; bmm.treeLookup[searchTreeItem.bookmarkId] = searchTreeItem; } var input = $('term'); // Do not update the input if the user is actively using the text input. if (document.activeElement != input) input.value = searchText; if (searchText) { bmm.tree.add(searchTreeItem); bmm.tree.selectedItem = searchTreeItem; } else { // Go "home". bmm.tree.selectedItem = bmm.tree.items[0]; id = bmm.tree.selectedItem.bookmarkId; } navigateTo(id); } /** * This returns the user visible path to the folder where the bookmark is * located. * @param {number} parentId The ID of the parent folder. * @return {string} The path to the the bookmark, */ function getFolder(parentId) { var parentNode = bmm.tree.getBookmarkNodeById(parentId); if (parentNode) { var s = parentNode.title; if (parentNode.parentId != bmm.ROOT_ID) { return getFolder(parentNode.parentId) + '/' + s; } return s; } } function handleLoadForTree(e) { processHash(); } /** * Returns a promise for all the URLs in the {@code nodes} and the direct * children of {@code nodes}. * @param {!Array} nodes . * @return {!Promise>} . */ function getAllUrls(nodes) { var urls = []; // Adds the node and all its direct children. // TODO(deepak.m1): Here node should exist. When we delete the nodes then // datamodel gets updated but still it shows deleted items as selected items // and accessing those nodes throws chrome.runtime.lastError. This cause // undefined value for node. Please refer https://crbug.com/480935. function addNodes(node) { if (!node || node.id == 'new') return; if (node.children) { node.children.forEach(function(child) { if (!bmm.isFolder(child)) urls.push(child.url); }); } else { urls.push(node.url); } } // Get a future promise for the nodes. var promises = nodes.map(function(node) { if (bmm.isFolder(assert(node))) return bmm.loadSubtree(node.id); // Not a folder so we already have all the data we need. return Promise.resolve(node); }); return Promise.all(promises).then(function(nodes) { nodes.forEach(addNodes); return urls; }); } /** * Returns the nodes (non recursive) to use for the open commands. * @param {HTMLElement} target * @return {!Array} */ function getNodesForOpen(target) { if (target == bmm.tree) { if (bmm.tree.selectedItem != searchTreeItem) return bmm.tree.selectedFolders; // Fall through to use all nodes in the list. } else { var items = bmm.list.selectedItems; if (items.length) return items; } // The list starts off with a null dataModel. We can get here during startup. if (!bmm.list.dataModel) return []; // Return an array based on the dataModel. return bmm.list.dataModel.slice(); } /** * Returns a promise that will contain all URLs of all the selected bookmarks * and the nested bookmarks for use with the open commands. * @param {HTMLElement} target The target list or tree. * @return {Promise>} . */ function getUrlsForOpenCommands(target) { return getAllUrls(getNodesForOpen(target)); } function notNewNode(node) { return node.id != 'new'; } /** * Helper function that updates the canExecute and labels for the open-like * commands. * @param {!cr.ui.CanExecuteEvent} e The event fired by the command system. * @param {!cr.ui.Command} command The command we are currently processing. * @param {string} singularId The string id of singular form of the menu label. * @param {string} pluralId The string id of menu label if the singular form is not used. * @param {boolean} commandDisabled Whether the menu item should be disabled no matter what bookmarks are selected. */ function updateOpenCommand(e, command, singularId, pluralId, commandDisabled) { if (singularId) { // The command label reflects the selection which might not reflect // how many bookmarks will be opened. For example if you right click an // empty area in a folder with 1 bookmark the text should still say "all". var selectedNodes = getSelectedBookmarkNodes(e.target).filter(notNewNode); var singular = selectedNodes.length == 1 && !bmm.isFolder(selectedNodes[0]); command.label = loadTimeData.getString(singular ? singularId : pluralId); } if (commandDisabled) { command.disabled = true; e.canExecute = false; return; } getUrlsForOpenCommands(assertInstanceof(e.target, HTMLElement)).then( function(urls) { var disabled = !urls.length; command.disabled = disabled; e.canExecute = !disabled; }); } /** * Calls the backend to figure out if we can paste the clipboard into the active * folder. * @param {Function=} opt_f Function to call after the state has been updated. */ function updatePasteCommand(opt_f) { function update(commandId, canPaste) { $(commandId).disabled = !canPaste; } var promises = []; // The folders menu. // We can not paste into search item in tree. if (bmm.tree.selectedItem && bmm.tree.selectedItem != searchTreeItem) { promises.push(new Promise(function(resolve) { var id = bmm.tree.selectedItem.bookmarkId; chrome.bookmarkManagerPrivate.canPaste(id, function(canPaste) { update('paste-from-folders-menu-command', canPaste); resolve(canPaste); }); })); } else { // Tree's not loaded yet. update('paste-from-folders-menu-command', false); } // The organize menu. var listId = bmm.list.parentId; if (bmm.list.isSearch() || !listId) { // We cannot paste into search view or the list isn't ready. update('paste-from-organize-menu-command', false); } else { promises.push(new Promise(function(resolve) { chrome.bookmarkManagerPrivate.canPaste(listId, function(canPaste) { update('paste-from-organize-menu-command', canPaste); resolve(canPaste); }); })); } Promise.all(promises).then(function() { var cmd; if (document.activeElement == bmm.list) cmd = 'paste-from-organize-menu-command'; else if (document.activeElement == bmm.tree) cmd = 'paste-from-folders-menu-command'; if (cmd) update('paste-from-context-menu-command', !$(cmd).disabled); if (opt_f) opt_f(); }); } function handleCanExecuteForSearchBox(e) { var command = e.command; switch (command.id) { case 'delete-command': case 'undo-command': // Pass the delete and undo commands through // (fixes http://crbug.com/278112). e.canExecute = false; break; } } function handleCanExecuteForDocument(e) { var command = e.command; switch (command.id) { case 'import-menu-command': e.canExecute = canEdit; break; case 'export-menu-command': // We can always execute the export-menu command. e.canExecute = true; break; case 'sort-command': e.canExecute = !bmm.list.isSearch() && bmm.list.dataModel && bmm.list.dataModel.length > 1 && !isUnmodifiable(bmm.tree.getBookmarkNodeById(bmm.list.parentId)); break; case 'undo-command': // Because the global undo command has no visible UI, always enable it, // and just make it a no-op if undo is not possible. e.canExecute = true; break; default: canExecuteForList(e); if (!e.defaultPrevented) canExecuteForTree(e); break; } } /** * Helper function for handling canExecute for the list and the tree. * @param {!cr.ui.CanExecuteEvent} e Can execute event object. * @param {boolean} isSearch Whether the user is trying to do a command on * search. */ function canExecuteShared(e, isSearch) { var command = e.command; switch (command.id) { case 'paste-from-folders-menu-command': case 'paste-from-organize-menu-command': case 'paste-from-context-menu-command': updatePasteCommand(); break; case 'add-new-bookmark-command': case 'new-folder-command': case 'new-folder-from-folders-menu-command': var parentId = computeParentFolderForNewItem(); var unmodifiable = isUnmodifiable( bmm.tree.getBookmarkNodeById(parentId)); e.canExecute = !isSearch && canEdit && !unmodifiable; break; case 'open-in-new-tab-command': updateOpenCommand(e, command, 'open_in_new_tab', 'open_all', false); break; case 'open-in-background-tab-command': updateOpenCommand(e, command, '', '', false); break; case 'open-in-new-window-command': updateOpenCommand(e, command, 'open_in_new_window', 'open_all_new_window', // Disabled when incognito is forced. incognitoModeAvailability == 'forced' || !canOpenNewWindows); break; case 'open-incognito-window-command': updateOpenCommand(e, command, 'open_incognito', 'open_all_incognito', // Not available when incognito is disabled. incognitoModeAvailability == 'disabled'); break; case 'undo-delete-command': e.canExecute = !!lastDeleted; break; } } /** * Helper function for handling canExecute for the list and document. * @param {!cr.ui.CanExecuteEvent} e Can execute event object. */ function canExecuteForList(e) { function hasSelected() { return !!bmm.list.selectedItem; } function hasSingleSelected() { return bmm.list.selectedItems.length == 1; } function canCopyItem(item) { return item.id != 'new'; } function canCopyItems() { var selectedItems = bmm.list.selectedItems; return selectedItems && selectedItems.some(canCopyItem); } function isSearch() { return bmm.list.isSearch(); } var command = e.command; switch (command.id) { case 'rename-folder-command': // Show rename if a single folder is selected. var items = bmm.list.selectedItems; if (items.length != 1) { e.canExecute = false; command.hidden = true; } else { var isFolder = bmm.isFolder(items[0]); e.canExecute = isFolder && canEdit && !hasUnmodifiable(items); command.hidden = !isFolder; } break; case 'edit-command': // Show the edit command if not a folder. var items = bmm.list.selectedItems; if (items.length != 1) { e.canExecute = false; command.hidden = false; } else { var isFolder = bmm.isFolder(items[0]); e.canExecute = !isFolder && canEdit && !hasUnmodifiable(items); command.hidden = isFolder; } break; case 'show-in-folder-command': e.canExecute = isSearch() && hasSingleSelected(); break; case 'delete-command': case 'cut-command': e.canExecute = canCopyItems() && canEdit && !hasUnmodifiable(bmm.list.selectedItems); break; case 'copy-command': e.canExecute = canCopyItems(); break; case 'open-in-same-window-command': e.canExecute = (e.target == bmm.list) && hasSelected(); break; default: canExecuteShared(e, isSearch()); } } // Update canExecute for the commands when the list is the active element. function handleCanExecuteForList(e) { if (e.target != bmm.list) return; canExecuteForList(e); } // Update canExecute for the commands when the tree is the active element. function handleCanExecuteForTree(e) { if (e.target != bmm.tree) return; canExecuteForTree(e); } function canExecuteForTree(e) { function hasSelected() { return !!bmm.tree.selectedItem; } function isSearch() { return bmm.tree.selectedItem == searchTreeItem; } function isTopLevelItem() { return bmm.tree.selectedItem && bmm.tree.selectedItem.parentNode == bmm.tree; } var command = e.command; switch (command.id) { case 'rename-folder-command': case 'rename-folder-from-folders-menu-command': command.hidden = false; e.canExecute = hasSelected() && !isTopLevelItem() && canEdit && !hasUnmodifiable(bmm.tree.selectedFolders); break; case 'edit-command': command.hidden = true; e.canExecute = false; break; case 'delete-command': case 'delete-from-folders-menu-command': case 'cut-command': case 'cut-from-folders-menu-command': e.canExecute = hasSelected() && !isTopLevelItem() && canEdit && !hasUnmodifiable(bmm.tree.selectedFolders); break; case 'copy-command': case 'copy-from-folders-menu-command': e.canExecute = hasSelected() && !isTopLevelItem(); break; case 'undo-delete-from-folders-menu-command': e.canExecute = lastDeleted && lastDeleted.target == bmm.tree; break; default: canExecuteShared(e, isSearch()); } } /** * Update the canExecute state of all the commands. */ function updateAllCommands() { var commands = document.querySelectorAll('command'); for (var i = 0; i < commands.length; i++) { commands[i].canExecuteChange(); } } function updateEditingCommands() { var editingCommands = [ 'add-new-bookmark', 'cut', 'cut-from-folders-menu', 'delete', 'edit', 'new-folder', 'paste-from-context-menu', 'paste-from-folders-menu', 'paste-from-organize-menu', 'rename-folder', 'sort', ]; chrome.bookmarkManagerPrivate.canEdit(function(result) { if (result != canEdit) { canEdit = result; editingCommands.forEach(function(baseId) { $(baseId + '-command').canExecuteChange(); }); } }); } function handleChangeForTree(e) { navigateTo(bmm.tree.selectedItem.bookmarkId); } function handleMenuButtonClicked(e) { updateEditingCommands(); if (e.currentTarget.id == 'folders-menu') { $('copy-from-folders-menu-command').canExecuteChange(); $('undo-delete-from-folders-menu-command').canExecuteChange(); } else { $('copy-command').canExecuteChange(); } } function handleRename(e) { var item = e.target; var bookmarkNode = item.bookmarkNode; chrome.bookmarks.update(bookmarkNode.id, {title: item.label}); performGlobalUndo = null; // This can't be undone, so disable global undo. } function handleEdit(e) { var item = e.target; var bookmarkNode = item.bookmarkNode; var context = { title: bookmarkNode.title }; if (!bmm.isFolder(bookmarkNode)) context.url = bookmarkNode.url; if (bookmarkNode.id == 'new') { selectItemsAfterUserAction(/** @type {BookmarkList} */(bmm.list)); // New page context.parentId = bookmarkNode.parentId; chrome.bookmarks.create(context, function(node) { // A new node was created and will get added to the list due to the // handler. var dataModel = bmm.list.dataModel; var index = dataModel.indexOf(bookmarkNode); dataModel.splice(index, 1); // Select new item. var newIndex = dataModel.findIndexById(node.id); if (newIndex != -1) { var sm = bmm.list.selectionModel; bmm.list.scrollIndexIntoView(newIndex); sm.leadIndex = sm.anchorIndex = sm.selectedIndex = newIndex; } }); } else { // Edit chrome.bookmarks.update(bookmarkNode.id, context); } performGlobalUndo = null; // This can't be undone, so disable global undo. } function handleCancelEdit(e) { var item = e.target; var bookmarkNode = item.bookmarkNode; if (bookmarkNode.id == 'new') { var dataModel = bmm.list.dataModel; var index = dataModel.findIndexById('new'); dataModel.splice(index, 1); } } /** * Navigates to the folder that the selected item is in and selects it. This is * used for the show-in-folder command. */ function showInFolder() { var bookmarkNode = bmm.list.selectedItem; if (!bookmarkNode) return; var parentId = bookmarkNode.parentId; // After the list is loaded we should select the revealed item. function selectItem() { var index = bmm.list.dataModel.findIndexById(bookmarkNode.id); if (index == -1) return; var sm = bmm.list.selectionModel; sm.anchorIndex = sm.leadIndex = sm.selectedIndex = index; bmm.list.scrollIndexIntoView(index); } var treeItem = bmm.treeLookup[parentId]; treeItem.reveal(); navigateTo(parentId, selectItem); } /** * @return {!cr.LinkController} The link controller used to open links based on * user clicks and keyboard actions. */ function getLinkController() { return linkController || (linkController = new cr.LinkController(loadTimeData)); } /** * Returns the selected bookmark nodes of the provided tree or list. * If |opt_target| is not provided or null the active element is used. * Only call this if the list or the tree is focused. * @param {EventTarget=} opt_target The target list or tree. * @return {!Array} Array of bookmark nodes. */ function getSelectedBookmarkNodes(opt_target) { return (opt_target || document.activeElement) == bmm.tree ? bmm.tree.selectedFolders : bmm.list.selectedItems; } /** * @param {EventTarget=} opt_target The target list or tree. * @return {!Array} An array of the selected bookmark IDs. */ function getSelectedBookmarkIds(opt_target) { var selectedNodes = getSelectedBookmarkNodes(opt_target); selectedNodes.sort(function(a, b) { return a.index - b.index }); return selectedNodes.map(function(node) { return node.id; }); } /** * @param {BookmarkTreeNode} node The node to test. * @return {boolean} Whether the given node is unmodifiable. */ function isUnmodifiable(node) { return !!(node && node.unmodifiable); } /** * @param {Array} nodes A list of BookmarkTreeNodes. * @return {boolean} Whether any of the nodes is managed. */ function hasUnmodifiable(nodes) { return nodes.some(isUnmodifiable); } /** * Opens the selected bookmarks. * @param {cr.LinkKind} kind The kind of link we want to open. * @param {HTMLElement=} opt_eventTarget The target of the user initiated event. */ function openBookmarks(kind, opt_eventTarget) { // If we have selected any folders, we need to find all the bookmarks one // level down. We use multiple async calls to getSubtree instead of getting // the whole tree since we would like to minimize the amount of data sent. var urlsP = getUrlsForOpenCommands(opt_eventTarget ? opt_eventTarget : null); urlsP.then(function(urls) { getLinkController().openUrls(assert(urls), kind); chrome.bookmarkManagerPrivate.recordLaunch(); }); } /** * Opens an item in the list. */ function openItem() { var bookmarkNodes = getSelectedBookmarkNodes(); // If we double clicked or pressed enter on a single folder, navigate to it. if (bookmarkNodes.length == 1 && bmm.isFolder(bookmarkNodes[0])) navigateTo(bookmarkNodes[0].id); else openBookmarks(LinkKind.FOREGROUND_TAB); } /** * Refreshes search results after delete or undo-delete. * This ensures children of deleted folders do not remain in results */ function updateSearchResults() { if (bmm.list.isSearch()) bmm.list.reload(); } /** * Deletes the selected bookmarks. The bookmarks are saved in memory in case * the user needs to undo the deletion. * @param {EventTarget=} opt_target The deleter of bookmarks. */ function deleteBookmarks(opt_target) { var selectedIds = getSelectedBookmarkIds(opt_target); if (!selectedIds.length) return; var filteredIds = getFilteredSelectedBookmarkIds(opt_target); lastDeleted = {nodes: [], target: opt_target || document.activeElement}; function performDelete() { // Only remove filtered ids. chrome.bookmarkManagerPrivate.removeTrees(filteredIds); $('undo-delete-command').canExecuteChange(); $('undo-delete-from-folders-menu-command').canExecuteChange(); performGlobalUndo = undoDelete; } // First, store information about the bookmarks being deleted. // Store all selected ids. selectedIds.forEach(function(id) { chrome.bookmarks.getSubTree(id, function(results) { lastDeleted.nodes.push(results); // When all nodes have been saved, perform the deletion. if (lastDeleted.nodes.length === selectedIds.length) { performDelete(); updateSearchResults(); } }); }); } /** * Restores a tree of bookmarks under a specified folder. * @param {BookmarkTreeNode} node The node to restore. * @param {(string|number)=} opt_parentId If a string is passed, it's the ID of * the folder to restore under. If not specified or a number is passed, the * original parentId of the node will be used. */ function restoreTree(node, opt_parentId) { var bookmarkInfo = { parentId: typeof opt_parentId == 'string' ? opt_parentId : node.parentId, title: node.title, index: node.index, url: node.url }; chrome.bookmarks.create(bookmarkInfo, function(result) { if (!result) { console.error('Failed to restore bookmark.'); return; } if (node.children) { // Restore the children using the new ID for this node. node.children.forEach(function(child) { restoreTree(child, result.id); }); } updateSearchResults(); }); } /** * Restores the last set of bookmarks that was deleted. */ function undoDelete() { lastDeleted.nodes.forEach(function(arr) { arr.forEach(restoreTree); }); lastDeleted = null; $('undo-delete-command').canExecuteChange(); $('undo-delete-from-folders-menu-command').canExecuteChange(); // Only a single level of undo is supported, so disable global undo now. performGlobalUndo = null; } /** * Computes folder for "Add Page" and "Add Folder". * @return {string} The id of folder node where we'll create new page/folder. */ function computeParentFolderForNewItem() { if (document.activeElement == bmm.tree) return bmm.list.parentId; var selectedItem = bmm.list.selectedItem; return selectedItem && bmm.isFolder(selectedItem) ? selectedItem.id : bmm.list.parentId; } /** * Callback for rename folder and edit command. This starts editing for * the passed in target, or the selected item. * @param {EventTarget=} opt_target The target to start editing. If absent or * null, the selected item will be edited instead. */ function editItem(opt_target) { if ((opt_target || document.activeElement) == bmm.tree) { bmm.tree.selectedItem.editing = true; } else { var li = bmm.list.getListItem(bmm.list.selectedItem); if (li) li.editing = true; } } /** * Callback for the new folder command. This creates a new folder and starts * a rename of it. * @param {EventTarget=} opt_target The target to create a new folder in. */ function newFolder(opt_target) { performGlobalUndo = null; // This can't be undone, so disable global undo. var parentId = computeParentFolderForNewItem(); var selectedItems = bmm.list.selectedItems; var newIndex; // Callback is called after tree and list data model updated. function createFolder(callback) { if (selectedItems.length == 1 && document.activeElement != bmm.tree && !bmm.isFolder(selectedItems[0]) && selectedItems[0].id != 'new') { newIndex = bmm.list.dataModel.indexOf(selectedItems[0]) + 1; } chrome.bookmarks.create({ title: loadTimeData.getString('new_folder_name'), parentId: parentId, index: newIndex }, callback); } if ((opt_target || document.activeElement) == bmm.tree) { createFolder(function(newNode) { navigateTo(newNode.id, function() { bmm.treeLookup[newNode.id].editing = true; }); }); return; } function editNewFolderInList() { createFolder(function(newNode) { var index = newNode.index; var sm = bmm.list.selectionModel; sm.anchorIndex = sm.leadIndex = sm.selectedIndex = index; scrollIntoViewAndMakeEditable(index); }); } navigateTo(parentId, editNewFolderInList); } /** * Scrolls the list item into view and makes it editable. * @param {number} index The index of the item to make editable. */ function scrollIntoViewAndMakeEditable(index) { bmm.list.scrollIndexIntoView(index); // onscroll is now dispatched asynchronously so we have to postpone // the rest. setTimeout(function() { var item = bmm.list.getListItemByIndex(index); if (item) item.editing = true; }, 0); } /** * Adds a page to the current folder. This is called by the * add-new-bookmark-command handler. */ function addPage() { var parentId = computeParentFolderForNewItem(); var selectedItems = bmm.list.selectedItems; var newIndex; function editNewBookmark() { if (selectedItems.length == 1 && document.activeElement != bmm.tree && !bmm.isFolder(selectedItems[0])) { newIndex = bmm.list.dataModel.indexOf(selectedItems[0]) + 1; } var fakeNode = { title: '', url: '', parentId: parentId, index: newIndex, id: 'new' }; var dataModel = bmm.list.dataModel; var index = dataModel.length; if (newIndex != undefined) index = newIndex; dataModel.splice(index, 0, fakeNode); var sm = bmm.list.selectionModel; sm.anchorIndex = sm.leadIndex = sm.selectedIndex = index; scrollIntoViewAndMakeEditable(index); }; navigateTo(parentId, editNewBookmark); } /** * This function is used to select items after a user action such as paste, drop * add page etc. * @param {BookmarkList|BookmarkTree} target The target of the user action. * @param {string=} opt_selectedTreeId If provided, then select that tree id. */ function selectItemsAfterUserAction(target, opt_selectedTreeId) { // We get one onCreated event per item so we delay the handling until we get // no more events coming. var ids = []; var timer; function handle(id, bookmarkNode) { clearTimeout(timer); if (opt_selectedTreeId || bmm.list.parentId == bookmarkNode.parentId) ids.push(id); timer = setTimeout(handleTimeout, 50); } function handleTimeout() { chrome.bookmarks.onCreated.removeListener(handle); chrome.bookmarks.onMoved.removeListener(handle); if (opt_selectedTreeId && ids.indexOf(opt_selectedTreeId) != -1) { var index = ids.indexOf(opt_selectedTreeId); if (index != -1 && opt_selectedTreeId in bmm.treeLookup) { bmm.tree.selectedItem = bmm.treeLookup[opt_selectedTreeId]; } } else if (target == bmm.list) { var dataModel = bmm.list.dataModel; var firstIndex = dataModel.findIndexById(ids[0]); var lastIndex = dataModel.findIndexById(ids[ids.length - 1]); if (firstIndex != -1 && lastIndex != -1) { var selectionModel = bmm.list.selectionModel; selectionModel.selectedIndex = -1; selectionModel.selectRange(firstIndex, lastIndex); selectionModel.anchorIndex = selectionModel.leadIndex = lastIndex; bmm.list.focus(); } } bmm.list.endBatchUpdates(); } bmm.list.startBatchUpdates(); chrome.bookmarks.onCreated.addListener(handle); chrome.bookmarks.onMoved.addListener(handle); timer = setTimeout(handleTimeout, 300); } /** * Record user action. * @param {string} name An user action name. */ function recordUserAction(name) { chrome.metricsPrivate.recordUserAction('BookmarkManager_Command_' + name); } /** * The currently selected bookmark, based on where the user is clicking. * @return {string} The ID of the currently selected bookmark (could be from * tree view or list view). */ function getSelectedId() { if (document.activeElement == bmm.tree) return bmm.tree.selectedItem.bookmarkId; var selectedItem = bmm.list.selectedItem; return selectedItem && bmm.isFolder(selectedItem) ? selectedItem.id : bmm.tree.selectedItem.bookmarkId; } /** * Pastes the copied/cutted bookmark into the right location depending whether * if it was called from Organize Menu or from Context Menu. * @param {string} id The id of the element being pasted from. */ function pasteBookmark(id) { recordUserAction('Paste'); selectItemsAfterUserAction(/** @type {BookmarkList} */(bmm.list)); chrome.bookmarkManagerPrivate.paste(id, getSelectedBookmarkIds()); } /** * Returns true if child is contained in another selected folder. * Traces parent nodes up the tree until a selected ancestor or root is found. */ function hasSelectedAncestor(parentNode) { function contains(arr, item) { for (var i = 0; i < arr.length; i++) if (arr[i] === item) return true; return false; } // Don't search top level, cannot select permanent nodes in search. if (parentNode == null || parentNode.id <= 2) return false; // Found selected ancestor. if (contains(getSelectedBookmarkNodes(), parentNode)) return true; // Keep digging. return hasSelectedAncestor( bmm.tree.getBookmarkNodeById(parentNode.parentId)); } /** * @param {EventTarget=} opt_target A target to get bookmark IDs from. * @return {Array} An array of bookmarks IDs. */ function getFilteredSelectedBookmarkIds(opt_target) { // Remove duplicates from filteredIds and return. var filteredIds = []; // Selected nodes to iterate through for matches. var nodes = getSelectedBookmarkNodes(opt_target); for (var i = 0; i < nodes.length; i++) if (!hasSelectedAncestor(bmm.tree.getBookmarkNodeById(nodes[i].parentId))) filteredIds.splice(0, 0, nodes[i].id); return filteredIds; } /** * Handler for the command event. This is used for context menu of list/tree * and organized menu. * @param {!Event} e The event object. */ function handleCommand(e) { var command = e.command; var target = assertInstanceof(e.target, HTMLElement); switch (command.id) { case 'import-menu-command': recordUserAction('Import'); chrome.bookmarks.import(); break; case 'export-menu-command': recordUserAction('Export'); chrome.bookmarks.export(); break; case 'undo-command': if (performGlobalUndo) { recordUserAction('UndoGlobal'); performGlobalUndo(); } else { recordUserAction('UndoNone'); } break; case 'show-in-folder-command': recordUserAction('ShowInFolder'); showInFolder(); break; case 'open-in-new-tab-command': case 'open-in-background-tab-command': recordUserAction('OpenInNewTab'); openBookmarks(LinkKind.BACKGROUND_TAB, target); break; case 'open-in-new-window-command': recordUserAction('OpenInNewWindow'); openBookmarks(LinkKind.WINDOW, target); break; case 'open-incognito-window-command': recordUserAction('OpenIncognito'); openBookmarks(LinkKind.INCOGNITO, target); break; case 'delete-from-folders-menu-command': target = bmm.tree; case 'delete-command': recordUserAction('Delete'); deleteBookmarks(target); break; case 'copy-from-folders-menu-command': target = bmm.tree; case 'copy-command': recordUserAction('Copy'); chrome.bookmarkManagerPrivate.copy(getSelectedBookmarkIds(target), updatePasteCommand); break; case 'cut-from-folders-menu-command': target = bmm.tree; case 'cut-command': recordUserAction('Cut'); chrome.bookmarkManagerPrivate.cut(getSelectedBookmarkIds(target), function() { updatePasteCommand(); updateSearchResults(); }); break; case 'paste-from-organize-menu-command': pasteBookmark(bmm.list.parentId); break; case 'paste-from-folders-menu-command': pasteBookmark(bmm.tree.selectedItem.bookmarkId); break; case 'paste-from-context-menu-command': pasteBookmark(getSelectedId()); break; case 'sort-command': recordUserAction('Sort'); chrome.bookmarkManagerPrivate.sortChildren(bmm.list.parentId); break; case 'rename-folder-from-folders-menu-command': target = bmm.tree; case 'rename-folder-command': editItem(target); break; case 'edit-command': recordUserAction('Edit'); editItem(); break; case 'new-folder-from-folders-menu-command': target = bmm.tree; case 'new-folder-command': recordUserAction('NewFolder'); newFolder(target); break; case 'add-new-bookmark-command': recordUserAction('AddPage'); addPage(); break; case 'open-in-same-window-command': recordUserAction('OpenInSame'); openItem(); break; case 'undo-delete-command': case 'undo-delete-from-folders-menu-command': recordUserAction('UndoDelete'); undoDelete(); break; } } // Execute the copy, cut and paste commands when those events are dispatched by // the browser. This allows us to rely on the browser to handle the keyboard // shortcuts for these commands. function installEventHandlerForCommand(eventName, commandId) { function handle(e) { if (document.activeElement != bmm.list && document.activeElement != bmm.tree) return; var command = $(commandId); if (!command.disabled) { command.execute(); if (e) e.preventDefault(); // Prevent the system beep. } } if (eventName == 'paste') { // Paste is a bit special since we need to do an async call to see if we // can paste because the paste command might not be up to date. document.addEventListener(eventName, function(e) { updatePasteCommand(handle); }); } else { document.addEventListener(eventName, handle); } } function initializeSplitter() { var splitter = document.querySelector('.main > .splitter'); Splitter.decorate(splitter); var splitterStyle = splitter.previousElementSibling.style; // The splitter persists the size of the left component in the local store. if ('treeWidth' in window.localStorage) splitterStyle.width = window.localStorage['treeWidth']; splitter.addEventListener('resize', function(e) { window.localStorage['treeWidth'] = splitterStyle.width; }); } function initializeBookmarkManager() { // Sometimes the extension API is not initialized. if (!chrome.bookmarks) console.error('Bookmarks extension API is not available'); chrome.bookmarkManagerPrivate.getStrings(continueInitializeBookmarkManager); } function continueInitializeBookmarkManager(localizedStrings) { loadLocalizedStrings(localizedStrings); bmm.treeLookup[searchTreeItem.bookmarkId] = searchTreeItem; cr.ui.decorate('cr-menu', Menu); cr.ui.decorate('button[menu]', MenuButton); cr.ui.decorate('command', Command); BookmarkList.decorate($('list')); BookmarkTree.decorate($('tree')); bmm.list.addEventListener('canceledit', handleCancelEdit); bmm.list.addEventListener('canExecute', handleCanExecuteForList); bmm.list.addEventListener('change', updateAllCommands); bmm.list.addEventListener('contextmenu', updateEditingCommands); bmm.list.addEventListener('dblclick', handleDoubleClickForList); bmm.list.addEventListener('edit', handleEdit); bmm.list.addEventListener('rename', handleRename); bmm.list.addEventListener('urlClicked', handleUrlClickedForList); bmm.tree.addEventListener('canExecute', handleCanExecuteForTree); bmm.tree.addEventListener('change', handleChangeForTree); bmm.tree.addEventListener('contextmenu', updateEditingCommands); bmm.tree.addEventListener('rename', handleRename); bmm.tree.addEventListener('load', handleLoadForTree); cr.ui.contextMenuHandler.addContextMenuProperty( /** @type {!Element} */(bmm.tree)); bmm.list.contextMenu = $('context-menu'); bmm.tree.contextMenu = $('context-menu'); // We listen to hashchange so that we can update the currently shown folder // when // the user goes back and forward in the history. window.addEventListener('hashchange', processHash); document.querySelector('header form').onsubmit = /** @type {function(Event=)} */(function(e) { setSearch($('term').value); e.preventDefault(); }); $('term').addEventListener('search', handleSearch); $('term').addEventListener('canExecute', handleCanExecuteForSearchBox); $('folders-button').addEventListener('click', handleMenuButtonClicked); $('organize-button').addEventListener('click', handleMenuButtonClicked); document.addEventListener('canExecute', handleCanExecuteForDocument); document.addEventListener('command', handleCommand); // Listen to copy, cut and paste events and execute the associated commands. installEventHandlerForCommand('copy', 'copy-command'); installEventHandlerForCommand('cut', 'cut-command'); installEventHandlerForCommand('paste', 'paste-from-organize-menu-command'); // Install shortcuts for (var name in commandShortcutMap) { $(name + '-command').shortcut = commandShortcutMap[name]; } // Disable almost all commands at startup. var commands = document.querySelectorAll('command'); for (var i = 0, command; command = commands[i]; ++i) { if (command.id != 'import-menu-command' && command.id != 'export-menu-command') { command.disabled = true; } } chrome.bookmarkManagerPrivate.canEdit(function(result) { canEdit = result; }); chrome.systemPrivate.getIncognitoModeAvailability(function(result) { // TODO(rustema): propagate policy value to the bookmark manager when it // changes. incognitoModeAvailability = result; }); chrome.bookmarkManagerPrivate.canOpenNewWindows(function(result) { canOpenNewWindows = result; }); cr.ui.FocusOutlineManager.forDocument(document); initializeSplitter(); bmm.addBookmarkModelListeners(); dnd.init(selectItemsAfterUserAction); bmm.tree.reload(); } initializeBookmarkManager(); })(); // Copyright (c) 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // TODO(arv): Now that this is driven by a data model, implement a data model // that handles the loading and the events from the bookmark backend. /** * @typedef {{childIds: Array}} * * @see chrome/common/extensions/api/bookmarks.json */ var ReorderInfo; /** * @typedef {{parentId: string, * index: number, * oldParentId: string, * oldIndex: number}} * * @see chrome/common/extensions/api/bookmarks.json */ var MoveInfo; cr.define('bmm', function() { 'use strict'; var List = cr.ui.List; var ListItem = cr.ui.ListItem; var ArrayDataModel = cr.ui.ArrayDataModel; var ContextMenuButton = cr.ui.ContextMenuButton; /** * Basic array data model for use with bookmarks. * @param {!Array} items The bookmark items. * @constructor * @extends {ArrayDataModel} */ function BookmarksArrayDataModel(items) { ArrayDataModel.call(this, items); } BookmarksArrayDataModel.prototype = { __proto__: ArrayDataModel.prototype, /** * Finds the index of the bookmark with the given ID. * @param {string} id The ID of the bookmark node to find. * @return {number} The index of the found node or -1 if not found. */ findIndexById: function(id) { for (var i = 0; i < this.length; i++) { if (this.item(i).id == id) return i; } return -1; } }; /** * Removes all children and appends a new child. * @param {!Node} parent The node to remove all children from. * @param {!Node} newChild The new child to append. */ function replaceAllChildren(parent, newChild) { var n; while ((n = parent.lastChild)) { parent.removeChild(n); } parent.appendChild(newChild); } /** * Creates a new bookmark list. * @param {Object=} opt_propertyBag Optional properties. * @constructor * @extends {cr.ui.List} */ var BookmarkList = cr.ui.define('list'); BookmarkList.prototype = { __proto__: List.prototype, /** @override */ decorate: function() { List.prototype.decorate.call(this); this.addEventListener('mousedown', this.handleMouseDown_); // HACK(arv): http://crbug.com/40902 window.addEventListener('resize', this.redraw.bind(this)); // We could add the ContextMenuButton in the BookmarkListItem but it slows // down redraws a lot so we do this on mouseovers instead. this.addEventListener('mouseover', this.handleMouseOver_.bind(this)); bmm.list = this; }, /** * @param {!BookmarkTreeNode} bookmarkNode * @override */ createItem: function(bookmarkNode) { return new BookmarkListItem(bookmarkNode); }, /** @private {string} */ parentId_: '', /** @private {number} */ loadCount_: 0, /** * Reloads the list from the bookmarks backend. */ reload: function() { var parentId = this.parentId; var callback = this.handleBookmarkCallback_.bind(this); this.loadCount_++; if (!parentId) callback([]); else if (/^q=/.test(parentId)) chrome.bookmarks.search(parentId.slice(2), callback); else chrome.bookmarks.getChildren(parentId, callback); }, /** * Callback function for loading items. * @param {Array} items The loaded items. * @private */ handleBookmarkCallback_: function(items) { this.loadCount_--; if (this.loadCount_) return; if (!items) { // Failed to load bookmarks. Most likely due to the bookmark being // removed. cr.dispatchSimpleEvent(this, 'invalidId'); return; } this.dataModel = new BookmarksArrayDataModel(items); this.fixWidth_(); cr.dispatchSimpleEvent(this, 'load'); }, /** * The bookmark node that the list is currently displaying. If we are * currently displaying search this returns null. * @type {BookmarkTreeNode} */ get bookmarkNode() { if (this.isSearch()) return null; var treeItem = bmm.treeLookup[this.parentId]; return treeItem && treeItem.bookmarkNode; }, /** * @return {boolean} Whether we are currently showing search results. */ isSearch: function() { return this.parentId_[0] == 'q'; }, /** * @return {boolean} Whether we are editing an ephemeral item. */ hasEphemeral: function() { var dataModel = this.dataModel; for (var i = 0; i < dataModel.array_.length; i++) { if (dataModel.array_[i].id == 'new') return true; } return false; }, /** * Handles mouseover on the list so that we can add the context menu button * lazily. * @private * @param {!Event} e The mouseover event object. */ handleMouseOver_: function(e) { var el = e.target; while (el && el.parentNode != this) { el = el.parentNode; } if (el && el.parentNode == this && !el.editing && !(el.lastChild instanceof ContextMenuButton)) { el.appendChild(new ContextMenuButton); } }, /** * Dispatches an urlClicked event which is used to open URLs in new * tabs etc. * @private * @param {string} url The URL that was clicked. * @param {!Event} originalEvent The original click event object. */ dispatchUrlClickedEvent_: function(url, originalEvent) { var event = new Event('urlClicked', {bubbles: true}); event.url = url; event.originalEvent = originalEvent; this.dispatchEvent(event); }, /** * Handles mousedown events so that we can prevent the auto scroll as * necessary. * @private * @param {!Event} e The mousedown event object. */ handleMouseDown_: function(e) { e = /** @type {!MouseEvent} */(e); if (e.button == 1) { // WebKit no longer fires click events for middle clicks so we manually // listen to mouse up to dispatch a click event. this.addEventListener('mouseup', this.handleMiddleMouseUp_); // When the user does a middle click we need to prevent the auto scroll // in case the user is trying to middle click to open a bookmark in a // background tab. // We do not do this in case the target is an input since middle click // is also paste on Linux and we don't want to break that. if (e.target.tagName != 'INPUT') e.preventDefault(); } }, /** * WebKit no longer dispatches click events for middle clicks so we need * to emulate it. * @private * @param {!Event} e The mouse up event object. */ handleMiddleMouseUp_: function(e) { e = /** @type {!MouseEvent} */(e); this.removeEventListener('mouseup', this.handleMiddleMouseUp_); if (e.button == 1) { var el = e.target; while (el.parentNode != this) { el = el.parentNode; } var node = el.bookmarkNode; if (node && !bmm.isFolder(node)) this.dispatchUrlClickedEvent_(node.url, e); } e.preventDefault(); }, // Bookmark model update callbacks handleBookmarkChanged: function(id, changeInfo) { var dataModel = this.dataModel; var index = dataModel.findIndexById(id); if (index != -1) { var bookmarkNode = this.dataModel.item(index); bookmarkNode.title = changeInfo.title; if ('url' in changeInfo) bookmarkNode.url = changeInfo['url']; dataModel.updateIndex(index); } }, /** * @param {string} id * @param {ReorderInfo} reorderInfo */ handleChildrenReordered: function(id, reorderInfo) { if (this.parentId == id) { // We create a new data model with updated items in the right order. var dataModel = this.dataModel; var items = {}; for (var i = this.dataModel.length - 1; i >= 0; i--) { var bookmarkNode = dataModel.item(i); items[bookmarkNode.id] = bookmarkNode; } var newArray = []; for (var i = 0; i < reorderInfo.childIds.length; i++) { newArray[i] = items[reorderInfo.childIds[i]]; newArray[i].index = i; } this.dataModel = new BookmarksArrayDataModel(newArray); } }, handleCreated: function(id, bookmarkNode) { if (this.parentId == bookmarkNode.parentId) this.dataModel.splice(bookmarkNode.index, 0, bookmarkNode); }, /** * @param {string} id * @param {MoveInfo} moveInfo */ handleMoved: function(id, moveInfo) { if (moveInfo.parentId == this.parentId || moveInfo.oldParentId == this.parentId) { var dataModel = this.dataModel; if (moveInfo.oldParentId == moveInfo.parentId) { // Reorder within this folder this.startBatchUpdates(); var bookmarkNode = this.dataModel.item(moveInfo.oldIndex); this.dataModel.splice(moveInfo.oldIndex, 1); this.dataModel.splice(moveInfo.index, 0, bookmarkNode); this.endBatchUpdates(); } else { if (moveInfo.oldParentId == this.parentId) { // Move out of this folder var index = dataModel.findIndexById(id); if (index != -1) dataModel.splice(index, 1); } if (moveInfo.parentId == this.parentId) { // Move to this folder var self = this; chrome.bookmarks.get(id, function(bookmarkNodes) { var bookmarkNode = bookmarkNodes[0]; dataModel.splice(bookmarkNode.index, 0, bookmarkNode); }); } } } }, handleRemoved: function(id, removeInfo) { var dataModel = this.dataModel; var index = dataModel.findIndexById(id); if (index != -1) dataModel.splice(index, 1); }, /** * Workaround for http://crbug.com/40902 * @private */ fixWidth_: function() { var list = bmm.list; if (this.loadCount_ || !list) return; // The width of the list is wrong after its content has changed. // Fortunately the reported offsetWidth is correct so we can detect the //incorrect width. if (list.offsetWidth != list.parentNode.clientWidth - list.offsetLeft) { // Set the width to the correct size. This causes the relayout. list.style.width = list.parentNode.clientWidth - list.offsetLeft + 'px'; // Remove the temporary style.width in a timeout. Once the timer fires // the size should not change since we already fixed the width. window.setTimeout(function() { list.style.width = ''; }, 0); } } }; /** * The ID of the bookmark folder we are displaying. */ cr.defineProperty(BookmarkList, 'parentId', cr.PropertyKind.JS, function() { this.reload(); }); /** * The contextMenu property. */ cr.ui.contextMenuHandler.addContextMenuProperty(BookmarkList); /** @type {cr.ui.Menu} */ BookmarkList.prototype.contextMenu; /** * Creates a new bookmark list item. * @param {!BookmarkTreeNode} bookmarkNode The bookmark node this represents. * @constructor * @extends {cr.ui.ListItem} */ function BookmarkListItem(bookmarkNode) { var el = cr.doc.createElement('div'); el.bookmarkNode = bookmarkNode; BookmarkListItem.decorate(el); return el; } /** * Decorates an element as a bookmark list item. * @param {!HTMLElement} el The element to decorate. */ BookmarkListItem.decorate = function(el) { el.__proto__ = BookmarkListItem.prototype; el.decorate(); }; BookmarkListItem.prototype = { __proto__: ListItem.prototype, /** @override */ decorate: function() { ListItem.prototype.decorate.call(this); var bookmarkNode = this.bookmarkNode; this.draggable = true; var labelEl = this.ownerDocument.createElement('div'); labelEl.className = 'label'; labelEl.textContent = bookmarkNode.title; var urlEl = this.ownerDocument.createElement('div'); urlEl.className = 'url'; if (bmm.isFolder(bookmarkNode)) { this.className = 'folder'; } else { labelEl.style.backgroundImage = getFaviconImageSet(bookmarkNode.url); labelEl.style.backgroundSize = '16px'; urlEl.textContent = bookmarkNode.url; } this.appendChild(labelEl); this.appendChild(urlEl); // Initially the ContextMenuButton was added here but it slowed down // rendering a lot so it is now added using mouseover. }, /** * The ID of the bookmark folder we are currently showing or loading. * @type {string} */ get bookmarkId() { return this.bookmarkNode.id; }, /** * Whether the user is currently able to edit the list item. * @type {boolean} */ get editing() { return this.hasAttribute('editing'); }, set editing(editing) { var oldEditing = this.editing; if (oldEditing == editing) return; var url = this.bookmarkNode.url; var title = this.bookmarkNode.title; var isFolder = bmm.isFolder(this.bookmarkNode); var listItem = this; var labelEl = this.firstChild; var urlEl = labelEl.nextSibling; var labelInput, urlInput; // Handles enter and escape which trigger reset and commit respectively. function handleKeydown(e) { // Make sure that the tree does not handle the key. e.stopPropagation(); // Calling list.focus blurs the input which will stop editing the list // item. switch (e.keyIdentifier) { case 'U+001B': // Esc labelInput.value = title; if (!isFolder) urlInput.value = url; // fall through cr.dispatchSimpleEvent(listItem, 'canceledit', true); case 'Enter': if (listItem.parentNode) listItem.parentNode.focus(); break; case 'U+0009': // Tab // urlInput is the last focusable element in the page. If we // allowed Tab focus navigation and the page loses focus, we // couldn't give focus on urlInput programatically. So, we prevent // Tab focus navigation. if (document.activeElement == urlInput && !e.ctrlKey && !e.metaKey && !e.shiftKey && !getValidURL(urlInput)) { e.preventDefault(); urlInput.blur(); } break; } } function getValidURL(input) { var originalValue = input.value; if (!originalValue) return null; if (input.validity.valid) return originalValue; // Blink does not do URL fix up so we manually test if prepending // 'http://' would make the URL valid. // https://bugs.webkit.org/show_bug.cgi?id=29235 input.value = 'http://' + originalValue; if (input.validity.valid) return input.value; // still invalid input.value = originalValue; return null; } function handleBlur(e) { // When the blur event happens we do not know who is getting focus so we // delay this a bit since we want to know if the other input got focus // before deciding if we should exit edit mode. var doc = e.target.ownerDocument; window.setTimeout(function() { var activeElement = doc.hasFocus() && doc.activeElement; if (activeElement != urlInput && activeElement != labelInput) { listItem.editing = false; } }, 50); } var doc = this.ownerDocument; if (editing) { this.setAttribute('editing', ''); this.draggable = false; labelInput = /** @type {HTMLElement} */(doc.createElement('input')); labelInput.placeholder = loadTimeData.getString('name_input_placeholder'); replaceAllChildren(labelEl, labelInput); labelInput.value = title; if (!isFolder) { urlInput = /** @type {HTMLElement} */(doc.createElement('input')); urlInput.type = 'url'; urlInput.required = true; urlInput.placeholder = loadTimeData.getString('url_input_placeholder'); // We also need a name for the input for the CSS to work. urlInput.name = '-url-input-' + cr.createUid(); replaceAllChildren(assert(urlEl), urlInput); urlInput.value = url; } var stopPropagation = function(e) { e.stopPropagation(); }; var eventsToStop = ['mousedown', 'mouseup', 'contextmenu', 'dblclick', 'paste']; eventsToStop.forEach(function(type) { labelInput.addEventListener(type, stopPropagation); }); labelInput.addEventListener('keydown', handleKeydown); labelInput.addEventListener('blur', handleBlur); cr.ui.limitInputWidth(labelInput, this, 100, 0.5); labelInput.focus(); labelInput.select(); if (!isFolder) { eventsToStop.forEach(function(type) { urlInput.addEventListener(type, stopPropagation); }); urlInput.addEventListener('keydown', handleKeydown); urlInput.addEventListener('blur', handleBlur); cr.ui.limitInputWidth(urlInput, this, 200, 0.5); } } else { // Check that we have a valid URL and if not we do not change the // editing mode. if (!isFolder) { var urlInput = this.querySelector('.url input'); var newUrl = urlInput.value; if (!newUrl) { cr.dispatchSimpleEvent(this, 'canceledit', true); return; } newUrl = getValidURL(urlInput); if (!newUrl) { // In case the item was removed before getting here we should // not alert. if (listItem.parentNode) { // Select the item again. var dataModel = this.parentNode.dataModel; var index = dataModel.indexOf(this.bookmarkNode); var sm = this.parentNode.selectionModel; sm.selectedIndex = sm.leadIndex = sm.anchorIndex = index; alert(loadTimeData.getString('invalid_url')); } urlInput.focus(); urlInput.select(); return; } urlEl.textContent = this.bookmarkNode.url = newUrl; } this.removeAttribute('editing'); this.draggable = true; labelInput = this.querySelector('.label input'); var newLabel = labelInput.value; labelEl.textContent = this.bookmarkNode.title = newLabel; if (isFolder) { if (newLabel != title) { cr.dispatchSimpleEvent(this, 'rename', true); } } else if (newLabel != title || newUrl != url) { cr.dispatchSimpleEvent(this, 'edit', true); } } } }; return { BookmarkList: BookmarkList, list: /** @type {Element} */(null), // Set when decorated. }; }); // Copyright (c) 2011 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. cr.define('bmm', function() { 'use strict'; /** * The id of the bookmark root. * @type {string} * @const */ var ROOT_ID = '0'; /** @const */ var Tree = cr.ui.Tree; /** @const */ var TreeItem = cr.ui.TreeItem; /** @const */ var localStorage = window.localStorage; var treeLookup = {}; // Manager for persisting the expanded state. var expandedManager = /** @type {EventListener} */({ /** * A map of the collapsed IDs. * @type {Object} */ map: 'bookmarkTreeState' in localStorage ? /** @type {Object} */(JSON.parse(localStorage['bookmarkTreeState'])) : {}, /** * Set the collapsed state for an ID. * @param {string} id The bookmark ID of the tree item that was expanded or * collapsed. * @param {boolean} expanded Whether the tree item was expanded. */ set: function(id, expanded) { if (expanded) delete this.map[id]; else this.map[id] = 1; this.save(); }, /** * @param {string} id The bookmark ID. * @return {boolean} Whether the tree item should be expanded. */ get: function(id) { return !(id in this.map); }, /** * Callback for the expand and collapse events from the tree. * @param {!Event} e The collapse or expand event. */ handleEvent: function(e) { this.set(e.target.bookmarkId, e.type == 'expand'); }, /** * Cleans up old bookmark IDs. */ cleanUp: function() { for (var id in this.map) { // If the id is no longer in the treeLookup the bookmark no longer // exists. if (!(id in treeLookup)) delete this.map[id]; } this.save(); }, timer: null, /** * Saves the expanded state to the localStorage. */ save: function() { clearTimeout(this.timer); var map = this.map; // Save in a timeout so that we can coalesce multiple changes. this.timer = setTimeout(function() { localStorage['bookmarkTreeState'] = JSON.stringify(map); }, 100); } }); // Clean up once per session but wait until things settle down a bit. setTimeout(expandedManager.cleanUp.bind(expandedManager), 1e4); /** * Creates a new tree item for a bookmark node. * @param {!Object} bookmarkNode The bookmark node. * @constructor * @extends {TreeItem} */ function BookmarkTreeItem(bookmarkNode) { var ti = new TreeItem({ label: bookmarkNode.title, bookmarkNode: bookmarkNode, // Bookmark toolbar and Other bookmarks are not draggable. draggable: bookmarkNode.parentId != ROOT_ID }); ti.__proto__ = BookmarkTreeItem.prototype; treeLookup[bookmarkNode.id] = ti; return ti; } BookmarkTreeItem.prototype = { __proto__: TreeItem.prototype, /** * The ID of the bookmark this tree item represents. * @type {string} */ get bookmarkId() { return this.bookmarkNode.id; } }; /** * Asynchronousy adds a tree item at the correct index based on the bookmark * backend. * * Since the bookmark tree only contains folders the index we get from certain * callbacks is not very useful so we therefore have this async call which * gets the children of the parent and adds the tree item at the desired * index. * * This also exoands the parent so that newly added children are revealed. * * @param {!cr.ui.TreeItem} parent The parent tree item. * @param {!cr.ui.TreeItem} treeItem The tree item to add. * @param {Function=} opt_f A function which gets called after the item has * been added at the right index. */ function addTreeItem(parent, treeItem, opt_f) { chrome.bookmarks.getChildren(parent.bookmarkNode.id, function(children) { var isFolder = /** * @type {function (BookmarkTreeNode, number, * Array<(BookmarkTreeNode)>)} */(bmm.isFolder); var index = children.filter(isFolder).map(function(item) { return item.id; }).indexOf(treeItem.bookmarkNode.id); parent.addAt(treeItem, index); parent.expanded = true; if (opt_f) opt_f(); }); } /** * Creates a new bookmark list. * @param {Object=} opt_propertyBag Optional properties. * @constructor * @extends {cr.ui.Tree} */ var BookmarkTree = cr.ui.define('tree'); BookmarkTree.prototype = { __proto__: Tree.prototype, decorate: function() { Tree.prototype.decorate.call(this); this.addEventListener('expand', expandedManager); this.addEventListener('collapse', expandedManager); bmm.tree = this; }, handleBookmarkChanged: function(id, changeInfo) { var treeItem = treeLookup[id]; if (treeItem) treeItem.label = treeItem.bookmarkNode.title = changeInfo.title; }, /** * @param {string} id * @param {ReorderInfo} reorderInfo */ handleChildrenReordered: function(id, reorderInfo) { var parentItem = treeLookup[id]; // The tree only contains folders. var dirIds = reorderInfo.childIds.filter(function(id) { return id in treeLookup; }).forEach(function(id, i) { parentItem.addAt(treeLookup[id], i); }); }, handleCreated: function(id, bookmarkNode) { if (bmm.isFolder(bookmarkNode)) { var parentItem = treeLookup[bookmarkNode.parentId]; var newItem = new BookmarkTreeItem(bookmarkNode); addTreeItem(parentItem, newItem); } }, /** * @param {string} id * @param {MoveInfo} moveInfo */ handleMoved: function(id, moveInfo) { var treeItem = treeLookup[id]; if (treeItem) { var oldParentItem = treeLookup[moveInfo.oldParentId]; oldParentItem.remove(treeItem); var newParentItem = treeLookup[moveInfo.parentId]; // The tree only shows folders so the index is not the index we want. We // therefore get the children need to adjust the index. addTreeItem(newParentItem, treeItem); } }, handleRemoved: function(id, removeInfo) { var parentItem = treeLookup[removeInfo.parentId]; var itemToRemove = treeLookup[id]; if (parentItem && itemToRemove) parentItem.remove(itemToRemove); }, insertSubtree: function(folder) { if (!bmm.isFolder(folder)) return; var children = folder.children; this.handleCreated(folder.id, folder); for (var i = 0; i < children.length; i++) { var child = children[i]; this.insertSubtree(child); } }, /** * Returns the bookmark node with the given ID. The tree only maintains * folder nodes. * @param {string} id The ID of the node to find. * @return {BookmarkTreeNode} The bookmark tree node or null if not found. */ getBookmarkNodeById: function(id) { var treeItem = treeLookup[id]; if (treeItem) return treeItem.bookmarkNode; return null; }, /** * Returns the selected bookmark folder node as an array. * @type {!Array} Array of bookmark nodes. */ get selectedFolders() { return this.selectedItem && this.selectedItem.bookmarkNode ? [this.selectedItem.bookmarkNode] : []; }, /** * Fetches the bookmark items and builds the tree control. */ reload: function() { /** * Recursive helper function that adds all the directories to the * parentTreeItem. * @param {!cr.ui.Tree|!cr.ui.TreeItem} parentTreeItem The parent tree * element to append to. * @param {!Array} bookmarkNodes A list of bookmark * nodes to be added. * @return {boolean} Whether any directories where added. */ function buildTreeItems(parentTreeItem, bookmarkNodes) { var hasDirectories = false; for (var i = 0, bookmarkNode; bookmarkNode = bookmarkNodes[i]; i++) { if (bmm.isFolder(bookmarkNode)) { hasDirectories = true; var item = new BookmarkTreeItem(bookmarkNode); parentTreeItem.add(item); var children = assert(bookmarkNode.children); var anyChildren = buildTreeItems(item, children); item.expanded = anyChildren && expandedManager.get(bookmarkNode.id); } } return hasDirectories; } var self = this; chrome.bookmarkManagerPrivate.getSubtree('', true, function(root) { self.clear(); buildTreeItems(self, root[0].children); cr.dispatchSimpleEvent(self, 'load'); }); }, /** * Clears the tree. */ clear: function() { // Remove all fields without recreating the object since other code // references it. for (var id in treeLookup) { delete treeLookup[id]; } this.textContent = ''; }, /** @override */ remove: function(child) { Tree.prototype.remove.call(this, child); if (child.bookmarkNode) delete treeLookup[child.bookmarkNode.id]; } }; return { BookmarkTree: BookmarkTree, BookmarkTreeItem: BookmarkTreeItem, treeLookup: treeLookup, tree: /** @type {Element} */(null), // Set when decorated. ROOT_ID: ROOT_ID }; }); // Copyright 2013 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. cr.define('dnd', function() { 'use strict'; /** @const */ var BookmarkList = bmm.BookmarkList; /** @const */ var ListItem = cr.ui.ListItem; /** @const */ var TreeItem = cr.ui.TreeItem; /** * Enumeration of valid drop locations relative to an element. These are * bit masks to allow combining multiple locations in a single value. * @enum {number} * @const */ var DropPosition = { NONE: 0, ABOVE: 1, ON: 2, BELOW: 4 }; /** * @type {Object} Drop information calculated in |handleDragOver|. */ var dropDestination = null; /** * @type {number} Timer id used to help minimize flicker. */ var removeDropIndicatorTimer; /** * The element currently targeted by a touch. * @type {Element} */ var currentTouchTarget; /** * The element that had a style applied it to indicate the drop location. * This is used to easily remove the style when necessary. * @type {Element} */ var lastIndicatorElement; /** * The style that was applied to indicate the drop location. * @type {?string} */ var lastIndicatorClassName; var dropIndicator = { /** * Applies the drop indicator style on the target element and stores that * information to easily remove the style in the future. */ addDropIndicatorStyle: function(indicatorElement, position) { var indicatorStyleName = position == DropPosition.ABOVE ? 'drag-above' : position == DropPosition.BELOW ? 'drag-below' : 'drag-on'; lastIndicatorElement = indicatorElement; lastIndicatorClassName = indicatorStyleName; indicatorElement.classList.add(indicatorStyleName); }, /** * Clears the drop indicator style from the last element was the drop target * so the drop indicator is no longer for that element. */ removeDropIndicatorStyle: function() { if (!lastIndicatorElement || !lastIndicatorClassName) return; lastIndicatorElement.classList.remove(lastIndicatorClassName); lastIndicatorElement = null; lastIndicatorClassName = null; }, /** * Displays the drop indicator on the current drop target to give the * user feedback on where the drop will occur. */ update: function(dropDest) { window.clearTimeout(removeDropIndicatorTimer); var indicatorElement = dropDest.element; var position = dropDest.position; if (dropDest.element instanceof BookmarkList) { // For an empty bookmark list use 'drop-above' style. position = DropPosition.ABOVE; } else if (dropDest.element instanceof TreeItem) { indicatorElement = indicatorElement.querySelector('.tree-row'); } dropIndicator.removeDropIndicatorStyle(); dropIndicator.addDropIndicatorStyle(indicatorElement, position); }, /** * Stop displaying the drop indicator. */ finish: function() { // The use of a timeout is in order to reduce flickering as we move // between valid drop targets. window.clearTimeout(removeDropIndicatorTimer); removeDropIndicatorTimer = window.setTimeout(function() { dropIndicator.removeDropIndicatorStyle(); }, 100); } }; /** * Delay for expanding folder when pointer hovers on folder in tree view in * milliseconds. * @type {number} * @const */ // TODO(yosin): EXPAND_FOLDER_DELAY should follow system settings. 400ms is // taken from Windows default settings. var EXPAND_FOLDER_DELAY = 400; /** * The timestamp when the mouse was over a folder during a drag operation. * Used to open the hovered folder after a certain time. * @type {number} */ var lastHoverOnFolderTimeStamp = 0; /** * Expand a folder if the user has hovered for longer than the specified * time during a drag action. */ function updateAutoExpander(eventTimeStamp, overElement) { // Expands a folder in tree view when pointer hovers on it longer than // EXPAND_FOLDER_DELAY. var hoverOnFolderTimeStamp = lastHoverOnFolderTimeStamp; lastHoverOnFolderTimeStamp = 0; if (hoverOnFolderTimeStamp) { if (eventTimeStamp - hoverOnFolderTimeStamp >= EXPAND_FOLDER_DELAY) overElement.expanded = true; else lastHoverOnFolderTimeStamp = hoverOnFolderTimeStamp; } else if (overElement instanceof TreeItem && bmm.isFolder(overElement.bookmarkNode) && overElement.hasChildren && !overElement.expanded) { lastHoverOnFolderTimeStamp = eventTimeStamp; } } /** * Stores the information about the bookmark and folders being dragged. * @type {Object} */ var dragData = null; var dragInfo = { handleChromeDragEnter: function(newDragData) { dragData = newDragData; }, clearDragData: function() { dragData = null; }, isDragValid: function() { return !!dragData; }, isSameProfile: function() { return dragData && dragData.sameProfile; }, isDraggingFolders: function() { return dragData && dragData.elements.some(function(node) { return !node.url; }); }, isDraggingBookmark: function(bookmarkId) { return dragData && dragData.elements.some(function(node) { return node.id == bookmarkId; }); }, isDraggingChildBookmark: function(folderId) { return dragData && dragData.elements.some(function(node) { return node.parentId == folderId; }); }, isDraggingFolderToDescendant: function(bookmarkNode) { return dragData && dragData.elements.some(function(node) { var dragFolder = bmm.treeLookup[node.id]; var dragFolderNode = dragFolder && dragFolder.bookmarkNode; return dragFolderNode && bmm.contains(dragFolderNode, bookmarkNode); }); } }; /** * External function to select folders or bookmarks after a drop action. * @type {?Function} */ var selectItemsAfterUserAction = null; function getBookmarkElement(el) { while (el && !el.bookmarkNode) { el = el.parentNode; } return el; } // If we are over the list and the list is showing search result, we cannot // drop. function isOverSearch(overElement) { return bmm.list.isSearch() && bmm.list.contains(overElement); } /** * Determines the valid drop positions for the given target element. * @param {!HTMLElement} overElement The element that we are currently * dragging over. * @return {DropPosition} An bit field enumeration of valid drop locations. */ function calculateValidDropTargets(overElement) { // Don't allow dropping if there is an ephemeral item being edited. if (bmm.list.hasEphemeral()) return DropPosition.NONE; if (!dragInfo.isDragValid() || isOverSearch(overElement)) return DropPosition.NONE; if (dragInfo.isSameProfile() && (dragInfo.isDraggingBookmark(overElement.bookmarkNode.id) || dragInfo.isDraggingFolderToDescendant(overElement.bookmarkNode))) { return DropPosition.NONE; } var canDropInfo = calculateDropAboveBelow(overElement); if (canDropOn(overElement)) canDropInfo |= DropPosition.ON; return canDropInfo; } function calculateDropAboveBelow(overElement) { if (overElement instanceof BookmarkList) return DropPosition.NONE; // We cannot drop between Bookmarks bar and Other bookmarks. if (overElement.bookmarkNode.parentId == bmm.ROOT_ID) return DropPosition.NONE; var isOverTreeItem = overElement instanceof TreeItem; var isOverExpandedTree = isOverTreeItem && overElement.expanded; var isDraggingFolders = dragInfo.isDraggingFolders(); // We can only drop between items in the tree if we have any folders. if (isOverTreeItem && !isDraggingFolders) return DropPosition.NONE; // When dragging from a different profile we do not need to consider // conflicts between the dragged items and the drop target. if (!dragInfo.isSameProfile()) { // Don't allow dropping below an expanded tree item since it is confusing // to the user anyway. return isOverExpandedTree ? DropPosition.ABOVE : (DropPosition.ABOVE | DropPosition.BELOW); } var resultPositions = DropPosition.NONE; // Cannot drop above if the item above is already in the drag source. var previousElem = overElement.previousElementSibling; if (!previousElem || !dragInfo.isDraggingBookmark(previousElem.bookmarkId)) resultPositions |= DropPosition.ABOVE; // Don't allow dropping below an expanded tree item since it is confusing // to the user anyway. if (isOverExpandedTree) return resultPositions; // Cannot drop below if the item below is already in the drag source. var nextElement = overElement.nextElementSibling; if (!nextElement || !dragInfo.isDraggingBookmark(nextElement.bookmarkId)) resultPositions |= DropPosition.BELOW; return resultPositions; } /** * Determine whether we can drop the dragged items on the drop target. * @param {!HTMLElement} overElement The element that we are currently * dragging over. * @return {boolean} Whether we can drop the dragged items on the drop * target. */ function canDropOn(overElement) { // We can only drop on a folder. if (!bmm.isFolder(overElement.bookmarkNode)) return false; if (!dragInfo.isSameProfile()) return true; if (overElement instanceof BookmarkList) { // We are trying to drop an item past the last item. This is // only allowed if dragged item is different from the last item // in the list. var listItems = bmm.list.items; var len = listItems.length; if (!len || !dragInfo.isDraggingBookmark(listItems[len - 1].bookmarkId)) return true; } return !dragInfo.isDraggingChildBookmark(overElement.bookmarkNode.id); } /** * Callback for the dragstart event. * @param {Event} e The dragstart event. */ function handleDragStart(e) { // Determine the selected bookmarks. var target = e.target; var draggedNodes = []; var isFromTouch = target == currentTouchTarget; if (target instanceof ListItem) { // Use selected items. draggedNodes = target.parentNode.selectedItems; } else if (target instanceof TreeItem) { draggedNodes.push(target.bookmarkNode); } // We manage starting the drag by using the extension API. e.preventDefault(); // Do not allow dragging if there is an ephemeral item being edited at the // moment. if (bmm.list.hasEphemeral()) return; if (draggedNodes.length) { // If we are dragging a single link, we can do the *Link* effect. // Otherwise, we only allow copy and move. e.dataTransfer.effectAllowed = draggedNodes.length == 1 && !bmm.isFolder(draggedNodes[0]) ? 'copyMoveLink' : 'copyMove'; chrome.bookmarkManagerPrivate.startDrag(draggedNodes.map(function(node) { return node.id; }), isFromTouch); } } function handleDragEnter(e) { e.preventDefault(); } /** * Calback for the dragover event. * @param {Event} e The dragover event. */ function handleDragOver(e) { // Allow DND on text inputs. if (e.target.tagName != 'INPUT') { // The default operation is to allow dropping links etc to do navigation. // We never want to do that for the bookmark manager. e.preventDefault(); // Set to none. This will get set to something if we can do the drop. e.dataTransfer.dropEffect = 'none'; } if (!dragInfo.isDragValid()) return; var overElement = getBookmarkElement(e.target) || (e.target == bmm.list ? bmm.list : null); if (!overElement) return; updateAutoExpander(e.timeStamp, overElement); var canDropInfo = calculateValidDropTargets(overElement); if (canDropInfo == DropPosition.NONE) return; // Now we know that we can drop. Determine if we will drop above, on or // below based on mouse position etc. dropDestination = calcDropPosition(e.clientY, overElement, canDropInfo); if (!dropDestination) { e.dataTransfer.dropEffect = 'none'; return; } e.dataTransfer.dropEffect = dragInfo.isSameProfile() ? 'move' : 'copy'; dropIndicator.update(dropDestination); } /** * This function determines where the drop will occur relative to the element. * @return {?Object} If no valid drop position is found, null, otherwise * an object containing the following parameters: * element - The target element that will receive the drop. * position - A |DropPosition| relative to the |element|. */ function calcDropPosition(elementClientY, overElement, canDropInfo) { if (overElement instanceof BookmarkList) { // Dropping on the BookmarkList either means dropping below the last // bookmark element or on the list itself if it is empty. var length = overElement.items.length; if (length) return { element: overElement.getListItemByIndex(length - 1), position: DropPosition.BELOW }; return {element: overElement, position: DropPosition.ON}; } var above = canDropInfo & DropPosition.ABOVE; var below = canDropInfo & DropPosition.BELOW; var on = canDropInfo & DropPosition.ON; var rect = overElement.getBoundingClientRect(); var yRatio = (elementClientY - rect.top) / rect.height; if (above && (yRatio <= .25 || yRatio <= .5 && (!below || !on))) return {element: overElement, position: DropPosition.ABOVE}; if (below && (yRatio > .75 || yRatio > .5 && (!above || !on))) return {element: overElement, position: DropPosition.BELOW}; if (on) return {element: overElement, position: DropPosition.ON}; return null; } function calculateDropInfo(eventTarget, dropDestination) { if (!dropDestination || !dragInfo.isDragValid()) return null; var dropPos = dropDestination.position; var relatedNode = dropDestination.element.bookmarkNode; var dropInfoResult = { selectTarget: null, selectedTreeId: -1, parentId: dropPos == DropPosition.ON ? relatedNode.id : relatedNode.parentId, index: -1, relatedIndex: -1 }; // Try to find the index in the dataModel so we don't have to always keep // the index for the list items up to date. var overElement = getBookmarkElement(eventTarget); if (overElement instanceof ListItem) { dropInfoResult.relatedIndex = overElement.parentNode.dataModel.indexOf(relatedNode); dropInfoResult.selectTarget = bmm.list; } else if (overElement instanceof BookmarkList) { dropInfoResult.relatedIndex = overElement.dataModel.length - 1; dropInfoResult.selectTarget = bmm.list; } else { // Tree dropInfoResult.relatedIndex = relatedNode.index; dropInfoResult.selectTarget = bmm.tree; dropInfoResult.selectedTreeId = bmm.tree.selectedItem ? bmm.tree.selectedItem.bookmarkId : null; } if (dropPos == DropPosition.ABOVE) dropInfoResult.index = dropInfoResult.relatedIndex; else if (dropPos == DropPosition.BELOW) dropInfoResult.index = dropInfoResult.relatedIndex + 1; return dropInfoResult; } function handleDragLeave(e) { dropIndicator.finish(); } function handleDrop(e) { var dropInfo = calculateDropInfo(e.target, dropDestination); if (dropInfo) { selectItemsAfterUserAction(dropInfo.selectTarget, dropInfo.selectedTreeId); if (dropInfo.index != -1) chrome.bookmarkManagerPrivate.drop(dropInfo.parentId, dropInfo.index); else chrome.bookmarkManagerPrivate.drop(dropInfo.parentId); e.preventDefault(); } dropDestination = null; dropIndicator.finish(); } function setCurrentTouchTarget(e) { // Only set a new target for a single touch point. if (e.touches.length == 1) currentTouchTarget = getBookmarkElement(e.target); } function clearCurrentTouchTarget(e) { if (getBookmarkElement(e.target) == currentTouchTarget) currentTouchTarget = null; } function clearDragData() { dragInfo.clearDragData(); dropDestination = null; } function init(selectItemsAfterUserActionFunction) { function deferredClearData() { setTimeout(clearDragData, 0); } selectItemsAfterUserAction = selectItemsAfterUserActionFunction; document.addEventListener('dragstart', handleDragStart); document.addEventListener('dragenter', handleDragEnter); document.addEventListener('dragover', handleDragOver); document.addEventListener('dragleave', handleDragLeave); document.addEventListener('drop', handleDrop); document.addEventListener('dragend', deferredClearData); document.addEventListener('mouseup', deferredClearData); document.addEventListener('mousedown', clearCurrentTouchTarget); document.addEventListener('touchcancel', clearCurrentTouchTarget); document.addEventListener('touchend', clearCurrentTouchTarget); document.addEventListener('touchstart', setCurrentTouchTarget); chrome.bookmarkManagerPrivate.onDragEnter.addListener( dragInfo.handleChromeDragEnter); chrome.bookmarkManagerPrivate.onDragLeave.addListener(deferredClearData); chrome.bookmarkManagerPrivate.onDrop.addListener(deferredClearData); } return {init: init}; }); // Copyright (c) 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. cr.define('bmm', function() { 'use strict'; /** * Whether a node contains another node. * TODO(yosin): Once JavaScript style guide is updated and linter follows * that, we'll remove useless documentations for |parent| and |descendant|. * TODO(yosin): bmm.contains() should be method of BookmarkTreeNode. * @param {!BookmarkTreeNode} parent . * @param {!BookmarkTreeNode} descendant . * @return {boolean} Whether the parent contains the descendant. */ function contains(parent, descendant) { if (descendant.parentId == parent.id) return true; // the bmm.treeLookup contains all folders var parentTreeItem = bmm.treeLookup[descendant.parentId]; if (!parentTreeItem || !parentTreeItem.bookmarkNode) return false; return this.contains(parent, parentTreeItem.bookmarkNode); } /** * @param {!BookmarkTreeNode} node The node to test. * @return {boolean} Whether a bookmark node is a folder. */ function isFolder(node) { return !('url' in node); } var loadingPromises = {}; /** * Promise version of chrome.bookmarkManagerPrivate.getSubtree. * @param {string} id . * @param {boolean} foldersOnly . * @return {!Promise>} . */ function getSubtreePromise(id, foldersOnly) { return new Promise(function(resolve, reject) { chrome.bookmarkManagerPrivate.getSubtree(id, foldersOnly, function(node) { if (chrome.runtime.lastError) { reject(new Error(chrome.runtime.lastError.message)); return; } resolve(node); }); }); } /** * Loads a subtree of the bookmark tree and returns a {@code Promise} that * will be fulfilled when done. This reuses multiple loads so that we do not * load the same subtree more than once at the same time. * @return {!Promise} The future promise for the load. */ function loadSubtree(id) { if (!loadingPromises[id]) { loadingPromises[id] = getSubtreePromise(id, false).then(function(nodes) { return nodes && nodes[0]; }, function(error) { console.error(error.message); }); loadingPromises[id].then(function() { delete loadingPromises[id]; }); } return loadingPromises[id]; } /** * Loads the entire bookmark tree and returns a {@code Promise} that will * be fulfilled when done. This reuses multiple loads so that we do not load * the same tree more than once at the same time. * @return {!Promise} The future promise for the load. */ function loadTree() { return loadSubtree(''); } var bookmarkCache = { /** * Removes the cached item from both the list and tree lookups. */ remove: function(id) { var treeItem = bmm.treeLookup[id]; if (treeItem) { var items = treeItem.items; // is an HTMLCollection for (var i = 0; i < items.length; ++i) { var item = items[i]; var bookmarkNode = item.bookmarkNode; delete bmm.treeLookup[bookmarkNode.id]; } delete bmm.treeLookup[id]; } }, /** * Updates the underlying bookmark node for the tree items and list items by * querying the bookmark backend. * @param {string} id The id of the node to update the children for. * @param {Function=} opt_f A funciton to call when done. */ updateChildren: function(id, opt_f) { function updateItem(bookmarkNode) { var treeItem = bmm.treeLookup[bookmarkNode.id]; if (treeItem) { treeItem.bookmarkNode = bookmarkNode; } } chrome.bookmarks.getChildren(id, function(children) { if (children) children.forEach(updateItem); if (opt_f) opt_f(children); }); } }; /** * Called when the title of a bookmark changes. * @param {string} id The id of changed bookmark node. * @param {!Object} changeInfo The information about how the node changed. */ function handleBookmarkChanged(id, changeInfo) { if (bmm.tree) bmm.tree.handleBookmarkChanged(id, changeInfo); if (bmm.list) bmm.list.handleBookmarkChanged(id, changeInfo); } /** * Callback for when the user reorders by title. * @param {string} id The id of the bookmark folder that was reordered. * @param {!Object} reorderInfo The information about how the items where * reordered. */ function handleChildrenReordered(id, reorderInfo) { if (bmm.tree) bmm.tree.handleChildrenReordered(id, reorderInfo); if (bmm.list) bmm.list.handleChildrenReordered(id, reorderInfo); bookmarkCache.updateChildren(id); } /** * Callback for when a bookmark node is created. * @param {string} id The id of the newly created bookmark node. * @param {!Object} bookmarkNode The new bookmark node. */ function handleCreated(id, bookmarkNode) { if (bmm.list) bmm.list.handleCreated(id, bookmarkNode); if (bmm.tree) bmm.tree.handleCreated(id, bookmarkNode); bookmarkCache.updateChildren(bookmarkNode.parentId); } /** * Callback for when a bookmark node is moved. * @param {string} id The id of the moved bookmark node. * @param {!Object} moveInfo The information about move. */ function handleMoved(id, moveInfo) { if (bmm.list) bmm.list.handleMoved(id, moveInfo); if (bmm.tree) bmm.tree.handleMoved(id, moveInfo); bookmarkCache.updateChildren(moveInfo.parentId); if (moveInfo.parentId != moveInfo.oldParentId) bookmarkCache.updateChildren(moveInfo.oldParentId); } /** * Callback for when a bookmark node is removed. * @param {string} id The id of the removed bookmark node. * @param {!Object} removeInfo The information about removed. */ function handleRemoved(id, removeInfo) { if (bmm.list) bmm.list.handleRemoved(id, removeInfo); if (bmm.tree) bmm.tree.handleRemoved(id, removeInfo); bookmarkCache.updateChildren(removeInfo.parentId); bookmarkCache.remove(id); } /** * Callback for when all bookmark nodes have been deleted. */ function handleRemoveAll() { // Reload the list and the tree. if (bmm.list) bmm.list.reload(); if (bmm.tree) bmm.tree.reload(); } /** * Callback for when importing bookmark is started. */ function handleImportBegan() { chrome.bookmarks.onCreated.removeListener(handleCreated); chrome.bookmarks.onChanged.removeListener(handleBookmarkChanged); } /** * Callback for when importing bookmark node is finished. */ function handleImportEnded() { // When importing is done we reload the tree and the list. function f() { bmm.tree.removeEventListener('load', f); chrome.bookmarks.onCreated.addListener(handleCreated); chrome.bookmarks.onChanged.addListener(handleBookmarkChanged); if (!bmm.list) return; // TODO(estade): this should navigate to the newly imported folder, which // may be the bookmark bar if there were no previous bookmarks. bmm.list.reload(); } if (bmm.tree) { bmm.tree.addEventListener('load', f); bmm.tree.reload(); } } /** * Adds the listeners for the bookmark model change events. */ function addBookmarkModelListeners() { chrome.bookmarks.onChanged.addListener(handleBookmarkChanged); chrome.bookmarks.onChildrenReordered.addListener(handleChildrenReordered); chrome.bookmarks.onCreated.addListener(handleCreated); chrome.bookmarks.onMoved.addListener(handleMoved); chrome.bookmarks.onRemoved.addListener(handleRemoved); chrome.bookmarks.onImportBegan.addListener(handleImportBegan); chrome.bookmarks.onImportEnded.addListener(handleImportEnded); }; return { contains: contains, isFolder: isFolder, loadSubtree: loadSubtree, loadTree: loadTree, addBookmarkModelListeners: addBookmarkModelListeners }; }); // Copyright (c) 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * Authenticator class wraps the communications between Gaia and its host. */ function Authenticator() { } /** * Gaia auth extension url origin. * @type {string} */ Authenticator.THIS_EXTENSION_ORIGIN = 'chrome-extension://mfffpogegjflfpflabcdkioaeobkgjik'; /** * The lowest version of the credentials passing API supported. * @type {number} */ Authenticator.MIN_API_VERSION_VERSION = 1; /** * The highest version of the credentials passing API supported. * @type {number} */ Authenticator.MAX_API_VERSION_VERSION = 1; /** * The key types supported by the credentials passing API. * @type {Array} Array of strings. */ Authenticator.API_KEY_TYPES = [ 'KEY_TYPE_PASSWORD_PLAIN', ]; /** * Allowed origins of the hosting page. * @type {Array} */ Authenticator.ALLOWED_PARENT_ORIGINS = [ 'chrome://oobe', 'chrome://chrome-signin' ]; /** * Singleton getter of Authenticator. * @return {Object} The singleton instance of Authenticator. */ Authenticator.getInstance = function() { if (!Authenticator.instance_) { Authenticator.instance_ = new Authenticator(); } return Authenticator.instance_; }; Authenticator.prototype = { email_: null, gaiaId_: null, // Depending on the key type chosen, this will contain the plain text password // or a credential derived from it along with the information required to // repeat the derivation, such as a salt. The information will be encoded so // that it contains printable ASCII characters only. The exact encoding is TBD // when support for key types other than plain text password is added. passwordBytes_: null, needPassword_: false, chooseWhatToSync_: false, skipForNow_: false, sessionIndex_: null, attemptToken_: null, // Input params from extension initialization URL. inputLang_: undefined, intputEmail_: undefined, isSAMLFlow_: false, gaiaLoaded_: false, supportChannel_: null, useEafe_: false, clientId_: '', GAIA_URL: 'https://accounts.google.com/', GAIA_PAGE_PATH: 'ServiceLogin?skipvpage=true&sarp=1&rm=hide', SERVICE_ID: 'chromeoslogin', CONTINUE_URL: Authenticator.THIS_EXTENSION_ORIGIN + '/success.html', CONSTRAINED_FLOW_SOURCE: 'chrome', initialize: function() { var handleInitializeMessage = function(e) { if (Authenticator.ALLOWED_PARENT_ORIGINS.indexOf(e.origin) == -1) { console.error('Unexpected parent message, origin=' + e.origin); return; } window.removeEventListener('message', handleInitializeMessage); var params = e.data; params.parentPage = e.origin; this.initializeFromParent_(params); this.onPageLoad_(); }.bind(this); document.addEventListener('DOMContentLoaded', function() { window.addEventListener('message', handleInitializeMessage); window.parent.postMessage({'method': 'loginUIDOMContentLoaded'}, '*'); }); }, initializeFromParent_: function(params) { this.parentPage_ = params.parentPage; this.gaiaUrl_ = params.gaiaUrl || this.GAIA_URL; this.gaiaPath_ = params.gaiaPath || this.GAIA_PAGE_PATH; this.inputLang_ = params.hl; this.inputEmail_ = params.email; this.service_ = params.service || this.SERVICE_ID; this.continueUrl_ = params.continueUrl || this.CONTINUE_URL; this.desktopMode_ = params.desktopMode == '1'; this.isConstrainedWindow_ = params.constrained == '1'; this.useEafe_ = params.useEafe || false; this.clientId_ = params.clientId || ''; this.initialFrameUrl_ = params.frameUrl || this.constructInitialFrameUrl_(); this.initialFrameUrlWithoutParams_ = stripParams(this.initialFrameUrl_); this.needPassword_ = params.needPassword == '1'; // For CrOS 'ServiceLogin' we assume that Gaia is loaded if we recieved // 'clearOldAttempts' message. For other scenarios Gaia doesn't send this // message so we have to rely on 'load' event. // TODO(dzhioev): Do not rely on 'load' event after b/16313327 is fixed. this.assumeLoadedOnLoadEvent_ = this.gaiaPath_.indexOf('ServiceLogin') !== 0 || this.service_ !== 'chromeoslogin' || this.useEafe_; }, isGaiaMessage_: function(msg) { // Not quite right, but good enough. return this.gaiaUrl_.indexOf(msg.origin) == 0 || this.GAIA_URL.indexOf(msg.origin) == 0; }, isParentMessage_: function(msg) { return msg.origin == this.parentPage_; }, constructInitialFrameUrl_: function() { var url = this.gaiaUrl_ + this.gaiaPath_; url = appendParam(url, 'service', this.service_); // Easy bootstrap use auth_code message as success signal instead of // continue URL. if (!this.useEafe_) url = appendParam(url, 'continue', this.continueUrl_); if (this.inputLang_) url = appendParam(url, 'hl', this.inputLang_); if (this.inputEmail_) url = appendParam(url, 'Email', this.inputEmail_); if (this.isConstrainedWindow_) url = appendParam(url, 'source', this.CONSTRAINED_FLOW_SOURCE); return url; }, onPageLoad_: function() { window.addEventListener('message', this.onMessage.bind(this), false); this.initSupportChannel_(); if (this.assumeLoadedOnLoadEvent_) { var gaiaFrame = $('gaia-frame'); var handler = function() { gaiaFrame.removeEventListener('load', handler); if (!this.gaiaLoaded_) { this.gaiaLoaded_ = true; this.maybeInitialized_(); if (this.useEafe_ && this.clientId_) { // Sends initial handshake message to EAFE. Note this fails with // SSO redirect because |gaiaFrame| sits on a different origin. gaiaFrame.contentWindow.postMessage({ clientId: this.clientId_ }, this.gaiaUrl_); } } }.bind(this); gaiaFrame.addEventListener('load', handler); } }, initSupportChannel_: function() { var supportChannel = new Channel(); supportChannel.connect('authMain'); supportChannel.registerMessage('channelConnected', function() { // Load the gaia frame after the background page indicates that it is // ready, so that the webRequest handlers are all setup first. var gaiaFrame = $('gaia-frame'); gaiaFrame.src = this.initialFrameUrl_; if (this.supportChannel_) { console.error('Support channel is already initialized.'); return; } this.supportChannel_ = supportChannel; if (this.desktopMode_) { this.supportChannel_.send({ name: 'initDesktopFlow', gaiaUrl: this.gaiaUrl_, continueUrl: stripParams(this.continueUrl_), isConstrainedWindow: this.isConstrainedWindow_, initialFrameUrlWithoutParams: this.initialFrameUrlWithoutParams_ }); this.supportChannel_.registerMessage( 'switchToFullTab', this.switchToFullTab_.bind(this)); } this.supportChannel_.registerMessage( 'completeLogin', this.onCompleteLogin_.bind(this)); this.initSAML_(); this.supportChannel_.send({name: 'resetAuth'}); this.maybeInitialized_(); }.bind(this)); window.setTimeout(function() { if (!this.supportChannel_) { // Give up previous channel and bind its 'channelConnected' to a no-op. supportChannel.registerMessage('channelConnected', function() {}); // Re-initialize the channel if it is not connected properly, e.g. // connect may be called before background script started running. this.initSupportChannel_(); } }.bind(this), 200); }, /** * Called when one of the initialization stages has finished. If all the * needed parts are initialized, notifies parent about successfull * initialization. */ maybeInitialized_: function() { if (!this.gaiaLoaded_ || !this.supportChannel_) return; var msg = { 'method': 'loginUILoaded' }; window.parent.postMessage(msg, this.parentPage_); }, /** * Invoked when the background script sends a message to indicate that the * current content does not fit in a constrained window. * @param {Object=} msg Extra info to send. */ switchToFullTab_: function(msg) { var parentMsg = { 'method': 'switchToFullTab', 'url': msg.url }; window.parent.postMessage(parentMsg, this.parentPage_); }, /** * Invoked when the signin flow is complete. * @param {Object=} opt_extraMsg Optional extra info to send. */ completeLogin_: function(opt_extraMsg) { var msg = { 'method': 'completeLogin', 'email': (opt_extraMsg && opt_extraMsg.email) || this.email_, 'password': this.passwordBytes_ || (opt_extraMsg && opt_extraMsg.password), 'usingSAML': this.isSAMLFlow_, 'chooseWhatToSync': this.chooseWhatToSync_ || false, 'skipForNow': (opt_extraMsg && opt_extraMsg.skipForNow) || this.skipForNow_, 'sessionIndex': (opt_extraMsg && opt_extraMsg.sessionIndex) || this.sessionIndex_, 'gaiaId': (opt_extraMsg && opt_extraMsg.gaiaId) || this.gaiaId_ }; window.parent.postMessage(msg, this.parentPage_); this.supportChannel_.send({name: 'resetAuth'}); }, /** * Invoked when support channel is connected. */ initSAML_: function() { this.isSAMLFlow_ = false; this.supportChannel_.registerMessage( 'onAuthPageLoaded', this.onAuthPageLoaded_.bind(this)); this.supportChannel_.registerMessage( 'onInsecureContentBlocked', this.onInsecureContentBlocked_.bind(this)); this.supportChannel_.registerMessage( 'apiCall', this.onAPICall_.bind(this)); this.supportChannel_.send({ name: 'setGaiaUrl', gaiaUrl: this.gaiaUrl_ }); if (!this.desktopMode_ && this.gaiaUrl_.indexOf('https://') == 0) { // Abort the login flow when content served over an unencrypted connection // is detected on Chrome OS. This does not apply to tests that explicitly // set a non-https GAIA URL and want to perform all authentication over // http. this.supportChannel_.send({ name: 'setBlockInsecureContent', blockInsecureContent: true }); } }, /** * Invoked when the background page sends 'onHostedPageLoaded' message. * @param {!Object} msg Details sent with the message. */ onAuthPageLoaded_: function(msg) { if (msg.isSAMLPage && !this.isSAMLFlow_) { // GAIA redirected to a SAML login page. The credentials provided to this // page will determine what user gets logged in. The credentials obtained // from the GAIA login form are no longer relevant and can be discarded. this.isSAMLFlow_ = true; this.email_ = null; this.gaiaId_ = null; this.passwordBytes_ = null; } window.parent.postMessage({ 'method': 'authPageLoaded', 'isSAML': this.isSAMLFlow_, 'domain': extractDomain(msg.url) }, this.parentPage_); }, /** * Invoked when the background page sends an 'onInsecureContentBlocked' * message. * @param {!Object} msg Details sent with the message. */ onInsecureContentBlocked_: function(msg) { window.parent.postMessage({ 'method': 'insecureContentBlocked', 'url': stripParams(msg.url) }, this.parentPage_); }, /** * Invoked when one of the credential passing API methods is called by a SAML * provider. * @param {!Object} msg Details of the API call. */ onAPICall_: function(msg) { var call = msg.call; if (call.method == 'initialize') { if (!Number.isInteger(call.requestedVersion) || call.requestedVersion < Authenticator.MIN_API_VERSION_VERSION) { this.sendInitializationFailure_(); return; } this.apiVersion_ = Math.min(call.requestedVersion, Authenticator.MAX_API_VERSION_VERSION); this.initialized_ = true; this.sendInitializationSuccess_(); return; } if (call.method == 'add') { if (Authenticator.API_KEY_TYPES.indexOf(call.keyType) == -1) { console.error('Authenticator.onAPICall_: unsupported key type'); return; } // Not setting |email_| and |gaiaId_| because this API call will // eventually be followed by onCompleteLogin_() which does set it. this.apiToken_ = call.token; this.passwordBytes_ = call.passwordBytes; } else if (call.method == 'confirm') { if (call.token != this.apiToken_) console.error('Authenticator.onAPICall_: token mismatch'); } else { console.error('Authenticator.onAPICall_: unknown message'); } }, onGotAuthCode_: function(authCode) { window.parent.postMessage({ 'method': 'completeAuthenticationAuthCodeOnly', 'authCode': authCode }, this.parentPage_); }, sendInitializationSuccess_: function() { this.supportChannel_.send({name: 'apiResponse', response: { result: 'initialized', version: this.apiVersion_, keyTypes: Authenticator.API_KEY_TYPES }}); }, sendInitializationFailure_: function() { this.supportChannel_.send({ name: 'apiResponse', response: {result: 'initialization_failed'} }); }, /** * Callback invoked for 'completeLogin' message. * @param {Object=} msg Message sent from background page. */ onCompleteLogin_: function(msg) { if (!msg.email || !msg.gaiaId || !msg.sessionIndex) { // On desktop, if the skipForNow message field is set, send it to handler. // This does not require the email, gaiaid or session to be valid. if (this.desktopMode_ && msg.skipForNow) { this.completeLogin_(msg); } else { console.error('Missing fields to complete login.'); window.parent.postMessage({method: 'missingGaiaInfo'}, this.parentPage_); return; } } // Skip SAML extra steps for desktop flow and non-SAML flow. if (!this.isSAMLFlow_ || this.desktopMode_) { this.completeLogin_(msg); return; } this.email_ = msg.email; this.gaiaId_ = msg.gaiaId; // Password from |msg| is not used because ChromeOS SAML flow // gets password by asking user to confirm. this.skipForNow_ = msg.skipForNow; this.sessionIndex_ = msg.sessionIndex; if (this.passwordBytes_) { // If the credentials passing API was used, login is complete. window.parent.postMessage({method: 'samlApiUsed'}, this.parentPage_); this.completeLogin_(msg); } else if (!this.needPassword_) { // If the credentials passing API was not used, the password was obtained // by scraping. It must be verified before use. However, the host may not // be interested in the password at all. In that case, verification is // unnecessary and login is complete. this.completeLogin_(msg); } else { this.supportChannel_.sendWithCallback( {name: 'getScrapedPasswords'}, function(passwords) { if (passwords.length == 0) { window.parent.postMessage( {method: 'noPassword', email: this.email_}, this.parentPage_); } else { window.parent.postMessage({method: 'confirmPassword', email: this.email_, passwordCount: passwords.length}, this.parentPage_); } }.bind(this)); } }, onVerifyConfirmedPassword_: function(password) { this.supportChannel_.sendWithCallback( {name: 'getScrapedPasswords'}, function(passwords) { for (var i = 0; i < passwords.length; ++i) { if (passwords[i] == password) { this.passwordBytes_ = passwords[i]; // SAML login is complete when the user has successfully // confirmed the password. if (this.passwordBytes_ !== null) this.completeLogin_(); return; } } window.parent.postMessage( {method: 'confirmPassword', email: this.email_}, this.parentPage_); }.bind(this)); }, onMessage: function(e) { var msg = e.data; if (this.useEafe_) { if (msg == '!_{h:\'gaia-frame\'}' && this.isGaiaMessage_(e)) { // Sends client ID again on the hello message to work around the SSO // signin issue. // TODO(xiyuan): Revisit this when EAFE is integrated or for webview. $('gaia-frame').contentWindow.postMessage({ clientId: this.clientId_ }, this.gaiaUrl_); } else if (typeof msg == 'object' && msg.type == 'authorizationCode' && this.isGaiaMessage_(e)) { this.onGotAuthCode_(msg.authorizationCode); } else { console.error('Authenticator.onMessage: unknown message' + ', msg=' + JSON.stringify(msg)); } return; } if (msg.method == 'attemptLogin' && this.isGaiaMessage_(e)) { // At this point GAIA does not yet know the gaiaId, so its not set here. this.email_ = msg.email; this.passwordBytes_ = msg.password; this.attemptToken_ = msg.attemptToken; this.chooseWhatToSync_ = msg.chooseWhatToSync; this.isSAMLFlow_ = false; if (this.supportChannel_) this.supportChannel_.send({name: 'startAuth'}); else console.error('Support channel is not initialized.'); } else if (msg.method == 'clearOldAttempts' && this.isGaiaMessage_(e)) { if (!this.gaiaLoaded_) { this.gaiaLoaded_ = true; this.maybeInitialized_(); } this.email_ = null; this.gaiaId_ = null; this.sessionIndex_ = false; this.passwordBytes_ = null; this.attemptToken_ = null; this.isSAMLFlow_ = false; this.skipForNow_ = false; this.chooseWhatToSync_ = false; if (this.supportChannel_) { this.supportChannel_.send({name: 'resetAuth'}); // This message is for clearing saml properties in gaia_auth_host and // oobe_screen_oauth_enrollment. window.parent.postMessage({ 'method': 'resetAuthFlow', }, this.parentPage_); } } else if (msg.method == 'verifyConfirmedPassword' && this.isParentMessage_(e)) { this.onVerifyConfirmedPassword_(msg.password); } else if (msg.method == 'redirectToSignin' && this.isParentMessage_(e)) { $('gaia-frame').src = this.constructInitialFrameUrl_(); } else { console.error('Authenticator.onMessage: unknown message + origin!?'); } } }; Authenticator.getInstance().initialize(); /* Copyright 2013 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ html, body, iframe { height: 100%; margin: 0; padding: 0; width: 100%; } iframe { overflow: hidden; } webview { display: inline-block; height: 100%; margin: 0; padding: 0; width: 100%; }
// Copyright (c) 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Offline login implementation. */ /** * Initialize the offline page. * @param {Object} params Intialization params passed from parent page. */ function load(params) { // Setup localized strings. $('sign-in-title').textContent = decodeURIComponent(params['stringSignIn']); $('email-label').textContent = decodeURIComponent(params['stringEmail']); $('password-label').textContent = decodeURIComponent(params['stringPassword']); $('submit-button').value = decodeURIComponent(params['stringSignIn']); $('empty-email-alert').textContent = decodeURIComponent(params['stringEmptyEmail']); $('empty-password-alert').textContent = decodeURIComponent(params['stringEmptyPassword']); $('errormsg-alert').textContent = decodeURIComponent(params['stringError']); // Setup actions. var form = $('offline-login-form'); form.addEventListener('submit', function(e) { // Clear all previous errors. form.email.classList.remove('field-error'); form.password.classList.remove('field-error'); form.password.classList.remove('form-error'); if (form.email.value == '') { form.email.classList.add('field-error'); form.email.focus(); } else if (form.password.value == '') { form.password.classList.add('field-error'); form.password.focus(); } else { var msg = { 'method': 'offlineLogin', 'email': form.email.value, 'password': form.password.value }; window.parent.postMessage(msg, 'chrome://oobe/'); } e.preventDefault(); }); var email = params['email']; if (email) { // Email is present, which means that unsuccessful login attempt has been // made. Try to mimic Gaia's behaviour. form.email.value = email; form.password.classList.add('form-error'); form.password.focus(); } else { form.email.focus(); } window.parent.postMessage({'method': 'loginUILoaded'}, 'chrome://oobe/'); } /** * Handles initialization message from parent page. * @param {MessageEvent} e */ function handleInitializeMessage(e) { var ALLOWED_PARENT_ORIGINS = [ 'chrome://oobe', 'chrome://chrome-signin' ]; if (ALLOWED_PARENT_ORIGINS.indexOf(e.origin) == -1) return; window.removeEventListener('message', handleInitializeMessage); var params = e.data; params.parentPage = e.origin; load(params); } document.addEventListener('DOMContentLoaded', function() { window.addEventListener('message', handleInitializeMessage); window.parent.postMessage({'method': 'loginUIDOMContentLoaded'}, '*'); }); /* Copyright 2014 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ /* TODO(dbeam): what's wrong with * here? Specificity issues? */ audio, body, canvas, command, dd, div, dl, dt, embed, form, group, h1, h2, h3, h4, h5, h6, html, img, mark, meter, object, output, progress, summary, td, time, tr, video { border: 0; margin: 0; padding: 0; } html { background: #fff; color: #333; direction: ltr; font: 81.25% arial, helvetica, sans-serif; line-height: 1; } h1, h2, h3, h4, h5, h6 { color: #222; font-size: 1.54em; font-weight: normal; line-height: 24px; margin: 0 0 .46em; } strong { color: #222; } body, html { height: 100%; min-width: 100%; position: absolute; } .wrapper { min-height: 100%; position: relative; } .content { padding: 0 44px; } .main { margin: 0 auto; padding-bottom: 100px; padding-top: 23px; width: 650px; } button, input, select, textarea { font-family: inherit; font-size: inherit; } input[type=email], input[type=number], input[type=password], input[type=text], input[type=url] { -webkit-box-sizing: border-box; background: #fff; border: 1px solid #d9d9d9; border-radius: 1px; border-top: 1px solid #c0c0c0; box-sizing: border-box; display: inline-block; height: 29px; margin: 0; padding-left: 8px; } input[type=email]:hover, input[type=number]:hover, input[type=password]:hover, input[type=text]:hover, input[type=url]:hover { border: 1px solid #b9b9b9; border-top: 1px solid #a0a0a0; box-shadow: inset 0 1px 2px rgba(0,0,0,0.1); } input[type=email]:focus, input[type=number]:focus, input[type=password]:focus, input[type=text]:focus, input[type=url]:focus { border: 1px solid rgb(77, 144, 254); box-shadow: inset 0 1px 2px rgba(0,0,0,0.3); outline: none; } input[type=email][disabled=disabled], input[type=number][disabled=disabled], input[type=password][disabled=disabled], input[type=text][disabled=disabled], input[type=url][disabled=disabled] { background: #f5f5f5; border: 1px solid #e5e5e5; } input[type=email][disabled=disabled]:hover, input[type=number][disabled=disabled]:hover, input[type=password][disabled=disabled]:hover, input[type=text][disabled=disabled]:hover, input[type=url][disabled=disabled]:hover { box-shadow: none; } .g-button { -webkit-transition: all 218ms; -webkit-user-select: none; background-color: #f5f5f5; background-image: linear-gradient(to bottom, #f5f5f5, #f1f1f1); border: 1px solid rgba(0,0,0,0.1); border-radius: 2px; color: #555; cursor: default; display: inline-block; font-size: 11px; font-weight: bold; height: 27px; line-height: 27px; min-width: 54px; padding: 0 8px; text-align: center; transition: all 218ms; user-select: none; } *+html .g-button { min-width: 70px; } button.g-button, input[type=submit].g-button { height: 29px; line-height: 29px; margin: 0; vertical-align: bottom; } *+html button.g-button, *+html input[type=submit].g-button { overflow: visible; } .g-button:hover { -webkit-transition: all 0ms; background-color: #f8f8f8; background-image: linear-gradient(to bottom, #f8f8f8, #f1f1f1); border: 1px solid #c6c6c6; box-shadow: 0 1px 1px rgba(0,0,0,0.1); color: #333; text-decoration: none; transition: all 0ms; } .g-button:active { background-color: #f6f6f6; background-image: linear-gradient(to bottom, #f6f6f6, #f1f1f1); box-shadow: inset 0 1px 2px rgba(0,0,0,0.1); } .g-button:visited { color: #666; } .g-button-submit { background-color: rgb(77, 144, 254); background-image: linear-gradient(to bottom, rgb(77, 144, 254), rgb(71, 135, 237)); border: 1px solid rgb(48, 121, 237); color: #fff; text-shadow: 0 1px rgba(0,0,0,0.1); } .g-button-submit:hover { background-color: rgb(53, 122, 232); background-image: linear-gradient(to bottom, rgb(77, 144, 254), rgb(53, 122, 232)); border: 1px solid rgb(47, 91, 183); color: #fff; text-shadow: 0 1px rgba(0,0,0,0.3); } .g-button-submit:active { box-shadow: inset 0 1px 2px rgba(0,0,0,0.3); } .g-button-submit:visited { color: #fff; } .g-button-submit:focus { box-shadow: inset 0 0 0 1px #fff; } .g-button-submit:focus:hover { box-shadow: inset 0 0 0 1px #fff, 0 1px 1px rgba(0,0,0,0.1); } .g-button:hover img { opacity: .72; } .g-button:active img { opacity: 1; } .errormsg { color: rgb(221, 75, 57); display: block; line-height: 17px; margin: .5em 0 0; } input[type=email].form-error, input[type=number].form-error, input[type=password].form-error, input[type=text].form-error, input[type=url].form-error, input[type=text].field-error, input[type=password].field-error { border: 1px solid rgb(221, 75, 57); } html { background: transparent; } .content { width: auto; } .main { padding-bottom: 12px; padding-top: 23px; } .signin-box h2 { font-size: 16px; height: 16px; line-height: 17px; margin: 0 0 1.2em; position: relative; } .signin-box label { display: block; margin: 0 0 1.5em; } .signin-box input[type=text], .signin-box input[type=password] { font-size: 15px; height: 32px; width: 100%; } .signin-box .email-label, .signin-box .passwd-label { -webkit-user-select: none; display: block; font-weight: bold; margin: 0 0 .5em; user-select: none; } .signin-box input[type=submit] { font-size: 13px; height: 32px; margin: 0 1.5em 1.2em 0; } .errormsg { display: none; } .form-error + .errormsg, .field-error + .errormsg { display: block; } // Copyright (c) 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * Alias for document.getElementById. * @param {string} id The ID of the element to find. * @return {HTMLElement} The found element or null if not found. */ function $(id) { return document.getElementById(id); } /** * Creates a new URL which is the old URL with a GET param of key=value. * Copied from ui/webui/resources/js/util.js. * @param {string} url The base URL. There is not sanity checking on the URL so * it must be passed in a proper format. * @param {string} key The key of the param. * @param {string} value The value of the param. * @return {string} The new URL. */ function appendParam(url, key, value) { var param = encodeURIComponent(key) + '=' + encodeURIComponent(value); if (url.indexOf('?') == -1) return url + '?' + param; return url + '&' + param; } /** * Creates a new URL by striping all query parameters. * @param {string} url The original URL. * @return {string} The new URL with all query parameters stripped. */ function stripParams(url) { return url.substring(0, url.indexOf('?')) || url; } /** * Extract domain name from an URL. * @param {string} url An URL string. * @return {string} The host name of the URL. */ function extractDomain(url) { var a = document.createElement('a'); a.href = url; return a.hostname; } // Copyright 2013 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview * A background script of the auth extension that bridges the communication * between the main and injected scripts. * * Here is an overview of the communication flow when SAML is being used: * 1. The main script sends the |startAuth| signal to this background script, * indicating that the authentication flow has started and SAML pages may be * loaded from now on. * 2. A script is injected into each SAML page. The injected script sends three * main types of messages to this background script: * a) A |pageLoaded| message is sent when the page has been loaded. This is * forwarded to the main script as |onAuthPageLoaded|. * b) If the SAML provider supports the credential passing API, the API calls * are sent to this background script as |apiCall| messages. These * messages are forwarded unmodified to the main script. * c) The injected script scrapes passwords. They are sent to this background * script in |updatePassword| messages. The main script can request a list * of the scraped passwords by sending the |getScrapedPasswords| message. */ /** * BackgroundBridgeManager maintains an array of BackgroundBridge, indexed by * the associated tab id. */ function BackgroundBridgeManager() { this.bridges_ = {}; } BackgroundBridgeManager.prototype = { CONTINUE_URL_BASE: 'chrome-extension://mfffpogegjflfpflabcdkioaeobkgjik' + '/success.html', // Maps a tab id to its associated BackgroundBridge. bridges_: null, run: function() { chrome.runtime.onConnect.addListener(this.onConnect_.bind(this)); chrome.webRequest.onBeforeRequest.addListener( function(details) { if (this.bridges_[details.tabId]) return this.bridges_[details.tabId].onInsecureRequest(details.url); }.bind(this), {urls: ['http://*/*', 'file://*/*', 'ftp://*/*']}, ['blocking']); chrome.webRequest.onBeforeSendHeaders.addListener( function(details) { if (this.bridges_[details.tabId]) return this.bridges_[details.tabId].onBeforeSendHeaders(details); else return {requestHeaders: details.requestHeaders}; }.bind(this), {urls: ['*://*/*'], types: ['sub_frame']}, ['blocking', 'requestHeaders']); chrome.webRequest.onHeadersReceived.addListener( function(details) { if (this.bridges_[details.tabId]) return this.bridges_[details.tabId].onHeadersReceived(details); }.bind(this), {urls: ['*://*/*'], types: ['sub_frame']}, ['blocking', 'responseHeaders']); chrome.webRequest.onCompleted.addListener( function(details) { if (this.bridges_[details.tabId]) this.bridges_[details.tabId].onCompleted(details); }.bind(this), {urls: ['*://*/*', this.CONTINUE_URL_BASE + '*'], types: ['sub_frame']}, ['responseHeaders']); }, onConnect_: function(port) { var tabId = this.getTabIdFromPort_(port); if (!this.bridges_[tabId]) this.bridges_[tabId] = new BackgroundBridge(tabId); if (port.name == 'authMain') { this.bridges_[tabId].setupForAuthMain(port); port.onDisconnect.addListener(function() { delete this.bridges_[tabId]; }.bind(this)); } else if (port.name == 'injected') { this.bridges_[tabId].setupForInjected(port); } else { console.error('Unexpected connection, port.name=' + port.name); } }, getTabIdFromPort_: function(port) { return port.sender.tab ? port.sender.tab.id : -1; } }; /** * BackgroundBridge allows the main script and the injected script to * collaborate. It forwards credentials API calls to the main script and * maintains a list of scraped passwords. * @param {string} tabId The associated tab ID. */ function BackgroundBridge(tabId) { this.tabId_ = tabId; this.passwordStore_ = {}; } BackgroundBridge.prototype = { // The associated tab ID. Only used for debugging now. tabId: null, // The initial URL loaded in the gaia iframe. We only want to handle // onCompleted() for the frame that loaded this URL. initialFrameUrlWithoutParams: null, // On process onCompleted() requests that come from this frame Id. frameId: -1, isDesktopFlow_: false, // Whether the extension is loaded in a constrained window. // Set from main auth script. isConstrainedWindow_: null, // Email of the newly authenticated user based on the gaia response header // 'google-accounts-signin'. email_: null, // Gaia Id of the newly authenticated user based on the gaia response // header 'google-accounts-signin'. gaiaId_: null, // Session index of the newly authenticated user based on the gaia response // header 'google-accounts-signin'. sessionIndex_: null, // Gaia URL base that is set from main auth script. gaiaUrl_: null, // Whether to abort the authentication flow and show an error messagen when // content served over an unencrypted connection is detected. blockInsecureContent_: false, // Whether auth flow has started. It is used as a signal of whether the // injected script should scrape passwords. authStarted_: false, // Whether SAML flow is going. isSAML_: false, passwordStore_: null, channelMain_: null, channelInjected_: null, /** * Sets up the communication channel with the main script. */ setupForAuthMain: function(port) { this.channelMain_ = new Channel(); this.channelMain_.init(port); // Registers for desktop related messages. this.channelMain_.registerMessage( 'initDesktopFlow', this.onInitDesktopFlow_.bind(this)); // Registers for SAML related messages. this.channelMain_.registerMessage( 'setGaiaUrl', this.onSetGaiaUrl_.bind(this)); this.channelMain_.registerMessage( 'setBlockInsecureContent', this.onSetBlockInsecureContent_.bind(this)); this.channelMain_.registerMessage( 'resetAuth', this.onResetAuth_.bind(this)); this.channelMain_.registerMessage( 'startAuth', this.onAuthStarted_.bind(this)); this.channelMain_.registerMessage( 'getScrapedPasswords', this.onGetScrapedPasswords_.bind(this)); this.channelMain_.registerMessage( 'apiResponse', this.onAPIResponse_.bind(this)); this.channelMain_.send({ 'name': 'channelConnected' }); }, /** * Sets up the communication channel with the injected script. */ setupForInjected: function(port) { this.channelInjected_ = new Channel(); this.channelInjected_.init(port); this.channelInjected_.registerMessage( 'apiCall', this.onAPICall_.bind(this)); this.channelInjected_.registerMessage( 'updatePassword', this.onUpdatePassword_.bind(this)); this.channelInjected_.registerMessage( 'pageLoaded', this.onPageLoaded_.bind(this)); this.channelInjected_.registerMessage( 'getSAMLFlag', this.onGetSAMLFlag_.bind(this)); }, /** * Handler for 'initDesktopFlow' signal sent from the main script. * Only called in desktop mode. */ onInitDesktopFlow_: function(msg) { this.isDesktopFlow_ = true; this.gaiaUrl_ = msg.gaiaUrl; this.isConstrainedWindow_ = msg.isConstrainedWindow; this.initialFrameUrlWithoutParams = msg.initialFrameUrlWithoutParams; }, /** * Handler for webRequest.onCompleted. It 1) detects loading of continue URL * and notifies the main script of signin completion; 2) detects if the * current page could be loaded in a constrained window and signals the main * script of switching to full tab if necessary. */ onCompleted: function(details) { // Only monitors requests in the gaia frame. The gaia frame is the one // where the initial frame URL completes. if (details.url.lastIndexOf( this.initialFrameUrlWithoutParams, 0) == 0) { this.frameId = details.frameId; } if (this.frameId == -1) { // If for some reason the frameId could not be set above, just make sure // the frame is more than two levels deep (since the gaia frame is at // least three levels deep). if (details.parentFrameId <= 0) return; } else if (details.frameId != this.frameId) { return; } if (details.url.lastIndexOf(backgroundBridgeManager.CONTINUE_URL_BASE, 0) == 0) { var skipForNow = false; if (details.url.indexOf('ntp=1') >= 0) skipForNow = true; // TOOD(guohui): For desktop SAML flow, show password confirmation UI. var passwords = this.onGetScrapedPasswords_(); var msg = { 'name': 'completeLogin', 'email': this.email_, 'gaiaId': this.gaiaId_, 'password': passwords[0], 'sessionIndex': this.sessionIndex_, 'skipForNow': skipForNow }; this.channelMain_.send(msg); } else if (this.isConstrainedWindow_) { // The header google-accounts-embedded is only set on gaia domain. if (this.gaiaUrl_ && details.url.lastIndexOf(this.gaiaUrl_) == 0) { var headers = details.responseHeaders; for (var i = 0; headers && i < headers.length; ++i) { if (headers[i].name.toLowerCase() == 'google-accounts-embedded') return; } } var msg = { 'name': 'switchToFullTab', 'url': details.url }; this.channelMain_.send(msg); } }, /** * Handler for webRequest.onBeforeRequest, invoked when content served over an * unencrypted connection is detected. Determines whether the request should * be blocked and if so, signals that an error message needs to be shown. * @param {string} url The URL that was blocked. * @return {!Object} Decision whether to block the request. */ onInsecureRequest: function(url) { if (!this.blockInsecureContent_) return {}; this.channelMain_.send({name: 'onInsecureContentBlocked', url: url}); return {cancel: true}; }, /** * Handler or webRequest.onHeadersReceived. It reads the authenticated user * email from google-accounts-signin-header. * @return {!Object} Modified request headers. */ onHeadersReceived: function(details) { var headers = details.responseHeaders; if (this.gaiaUrl_ && details.url.lastIndexOf(this.gaiaUrl_) == 0) { for (var i = 0; headers && i < headers.length; ++i) { if (headers[i].name.toLowerCase() == 'google-accounts-signin') { var headerValues = headers[i].value.toLowerCase().split(','); var signinDetails = {}; headerValues.forEach(function(e) { var pair = e.split('='); signinDetails[pair[0].trim()] = pair[1].trim(); }); // Remove "" around. this.email_ = signinDetails['email'].slice(1, -1); this.gaiaId_ = signinDetails['obfuscatedid'].slice(1, -1); this.sessionIndex_ = signinDetails['sessionindex']; break; } } } if (!this.isDesktopFlow_) { // Check whether GAIA headers indicating the start or end of a SAML // redirect are present. If so, synthesize cookies to mark these points. for (var i = 0; headers && i < headers.length; ++i) { if (headers[i].name.toLowerCase() == 'google-accounts-saml') { var action = headers[i].value.toLowerCase(); if (action == 'start') { this.isSAML_ = true; // GAIA is redirecting to a SAML IdP. Any cookies contained in the // current |headers| were set by GAIA. Any cookies set in future // requests will be coming from the IdP. Append a cookie to the // current |headers| that marks the point at which the redirect // occurred. headers.push({name: 'Set-Cookie', value: 'google-accounts-saml-start=now'}); return {responseHeaders: headers}; } else if (action == 'end') { this.isSAML_ = false; // The SAML IdP has redirected back to GAIA. Add a cookie that marks // the point at which the redirect occurred occurred. It is // important that this cookie be prepended to the current |headers| // because any cookies contained in the |headers| were already set // by GAIA, not the IdP. Due to limitations in the webRequest API, // it is not trivial to prepend a cookie: // // The webRequest API only allows for deleting and appending // headers. To prepend a cookie (C), three steps are needed: // 1) Delete any headers that set cookies (e.g., A, B). // 2) Append a header which sets the cookie (C). // 3) Append the original headers (A, B). // // Due to a further limitation of the webRequest API, it is not // possible to delete a header in step 1) and append an identical // header in step 3). To work around this, a trailing semicolon is // added to each header before appending it. Trailing semicolons are // ignored by Chrome in cookie headers, causing the modified headers // to actually set the original cookies. var otherHeaders = []; var cookies = [{name: 'Set-Cookie', value: 'google-accounts-saml-end=now'}]; for (var j = 0; j < headers.length; ++j) { if (headers[j].name.toLowerCase().indexOf('set-cookie') == 0) { var header = headers[j]; header.value += ';'; cookies.push(header); } else { otherHeaders.push(headers[j]); } } return {responseHeaders: otherHeaders.concat(cookies)}; } } } } return {}; }, /** * Handler for webRequest.onBeforeSendHeaders. * @return {!Object} Modified request headers. */ onBeforeSendHeaders: function(details) { if (!this.isDesktopFlow_ && this.gaiaUrl_ && details.url.indexOf(this.gaiaUrl_) == 0) { details.requestHeaders.push({ name: 'X-Cros-Auth-Ext-Support', value: 'SAML' }); } return {requestHeaders: details.requestHeaders}; }, /** * Handler for 'setGaiaUrl' signal sent from the main script. */ onSetGaiaUrl_: function(msg) { this.gaiaUrl_ = msg.gaiaUrl; }, /** * Handler for 'setBlockInsecureContent' signal sent from the main script. */ onSetBlockInsecureContent_: function(msg) { this.blockInsecureContent_ = msg.blockInsecureContent; }, /** * Handler for 'resetAuth' signal sent from the main script. */ onResetAuth_: function() { this.authStarted_ = false; this.passwordStore_ = {}; this.isSAML_ = false; }, /** * Handler for 'authStarted' signal sent from the main script. */ onAuthStarted_: function() { this.authStarted_ = true; this.passwordStore_ = {}; this.isSAML_ = false; }, /** * Handler for 'getScrapedPasswords' request sent from the main script. * @return {Array} The array with de-duped scraped passwords. */ onGetScrapedPasswords_: function() { var passwords = {}; for (var property in this.passwordStore_) { passwords[this.passwordStore_[property]] = true; } return Object.keys(passwords); }, /** * Handler for 'apiResponse' signal sent from the main script. Passes on the * |msg| to the injected script. */ onAPIResponse_: function(msg) { this.channelInjected_.send(msg); }, onAPICall_: function(msg) { this.channelMain_.send(msg); }, onUpdatePassword_: function(msg) { if (!this.authStarted_) return; this.passwordStore_[msg.id] = msg.password; }, onPageLoaded_: function(msg) { if (this.channelMain_) this.channelMain_.send({name: 'onAuthPageLoaded', url: msg.url, isSAMLPage: this.isSAML_}); }, onGetSAMLFlag_: function(msg) { return this.isSAML_; } }; var backgroundBridgeManager = new BackgroundBridgeManager(); backgroundBridgeManager.run(); // Copyright 2013 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview * Script to be injected into SAML provider pages, serving three main purposes: * 1. Signal hosting extension that an external page is loaded so that the * UI around it should be changed accordingly; * 2. Provide an API via which the SAML provider can pass user credentials to * Chrome OS, allowing the password to be used for encrypting user data and * offline login. * 3. Scrape password fields, making the password available to Chrome OS even if * the SAML provider does not support the credential passing API. */ (function() { function APICallForwarder() { } /** * The credential passing API is used by sending messages to the SAML page's * |window| object. This class forwards API calls from the SAML page to a * background script and API responses from the background script to the SAML * page. Communication with the background script occurs via a |Channel|. */ APICallForwarder.prototype = { // Channel to which API calls are forwarded. channel_: null, /** * Initialize the API call forwarder. * @param {!Object} channel Channel to which API calls should be forwarded. */ init: function(channel) { this.channel_ = channel; this.channel_.registerMessage('apiResponse', this.onAPIResponse_.bind(this)); window.addEventListener('message', this.onMessage_.bind(this)); }, onMessage_: function(event) { if (event.source != window || typeof event.data != 'object' || !event.data.hasOwnProperty('type') || event.data.type != 'gaia_saml_api') { return; } // Forward API calls to the background script. this.channel_.send({name: 'apiCall', call: event.data.call}); }, onAPIResponse_: function(msg) { // Forward API responses to the SAML page. window.postMessage({type: 'gaia_saml_api_reply', response: msg.response}, '/'); } }; /** * A class to scrape password from type=password input elements under a given * docRoot and send them back via a Channel. */ function PasswordInputScraper() { } PasswordInputScraper.prototype = { // URL of the page. pageURL_: null, // Channel to send back changed password. channel_: null, // An array to hold password fields. passwordFields_: null, // An array to hold cached password values. passwordValues_: null, // A MutationObserver to watch for dynamic password field creation. passwordFieldsObserver: null, /** * Initialize the scraper with given channel and docRoot. Note that the * scanning for password fields happens inside the function and does not * handle DOM tree changes after the call returns. * @param {!Object} channel The channel to send back password. * @param {!string} pageURL URL of the page. * @param {!HTMLElement} docRoot The root element of the DOM tree that * contains the password fields of interest. */ init: function(channel, pageURL, docRoot) { this.pageURL_ = pageURL; this.channel_ = channel; this.passwordFields_ = []; this.passwordValues_ = []; this.findAndTrackChildren(docRoot); this.passwordFieldsObserver = new MutationObserver(function(mutations) { mutations.forEach(function(mutation) { Array.prototype.forEach.call( mutation.addedNodes, function(addedNode) { if (addedNode.nodeType != Node.ELEMENT_NODE) return; if (addedNode.matches('input[type=password]')) { this.trackPasswordField(addedNode); } else { this.findAndTrackChildren(addedNode); } }.bind(this)); }.bind(this)); }.bind(this)); this.passwordFieldsObserver.observe(docRoot, {subtree: true, childList: true}); }, /** * Find and track password fields that are descendants of the given element. * @param {!HTMLElement} element The parent element to search from. */ findAndTrackChildren: function(element) { Array.prototype.forEach.call( element.querySelectorAll('input[type=password]'), function(field) { this.trackPasswordField(field); }.bind(this)); }, /** * Start tracking value changes of the given password field if it is * not being tracked yet. * @param {!HTMLInputElement} passworField The password field to track. */ trackPasswordField: function(passwordField) { var existing = this.passwordFields_.filter(function(element) { return element === passwordField; }); if (existing.length != 0) return; var index = this.passwordFields_.length; passwordField.addEventListener( 'input', this.onPasswordChanged_.bind(this, index)); this.passwordFields_.push(passwordField); this.passwordValues_.push(passwordField.value); }, /** * Check if the password field at |index| has changed. If so, sends back * the updated value. */ maybeSendUpdatedPassword: function(index) { var newValue = this.passwordFields_[index].value; if (newValue == this.passwordValues_[index]) return; this.passwordValues_[index] = newValue; // Use an invalid char for URL as delimiter to concatenate page url and // password field index to construct a unique ID for the password field. var passwordId = this.pageURL_.split('#')[0].split('?')[0] + '|' + index; this.channel_.send({ name: 'updatePassword', id: passwordId, password: newValue }); }, /** * Handles 'change' event in the scraped password fields. * @param {number} index The index of the password fields in * |passwordFields_|. */ onPasswordChanged_: function(index) { this.maybeSendUpdatedPassword(index); } }; function onGetSAMLFlag(channel, isSAMLPage) { if (!isSAMLPage) return; var pageURL = window.location.href; channel.send({name: 'pageLoaded', url: pageURL}); var initPasswordScraper = function() { var passwordScraper = new PasswordInputScraper(); passwordScraper.init(channel, pageURL, document.documentElement); }; if (document.readyState == 'loading') { window.addEventListener('readystatechange', function listener(event) { if (document.readyState == 'loading') return; initPasswordScraper(); window.removeEventListener(event.type, listener, true); }, true); } else { initPasswordScraper(); } } var channel = Channel.create(); channel.connect('injected'); channel.sendWithCallback({name: 'getSAMLFlag'}, onGetSAMLFlag.bind(undefined, channel)); var apiCallForwarder = new APICallForwarder(); apiCallForwarder.init(channel); })(); // Copyright 2013 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * Channel to the background script. */ function Channel() { this.messageCallbacks_ = {}; this.internalRequestCallbacks_ = {}; } /** @const */ Channel.INTERNAL_REQUEST_MESSAGE = 'internal-request-message'; /** @const */ Channel.INTERNAL_REPLY_MESSAGE = 'internal-reply-message'; Channel.prototype = { // Message port to use to communicate with background script. port_: null, // Registered message callbacks. messageCallbacks_: null, // Internal request id to track pending requests. nextInternalRequestId_: 0, // Pending internal request callbacks. internalRequestCallbacks_: null, /** * Initialize the channel with given port for the background script. */ init: function(port) { this.port_ = port; this.port_.onMessage.addListener(this.onMessage_.bind(this)); }, /** * Connects to the background script with the given name. */ connect: function(name) { this.port_ = chrome.runtime.connect({name: name}); this.port_.onMessage.addListener(this.onMessage_.bind(this)); }, /** * Associates a message name with a callback. When a message with the name * is received, the callback will be invoked with the message as its arg. * Note only the last registered callback will be invoked. */ registerMessage: function(name, callback) { this.messageCallbacks_[name] = callback; }, /** * Sends a message to the other side of the channel. */ send: function(msg) { this.port_.postMessage(msg); }, /** * Sends a message to the other side and invokes the callback with * the replied object. Useful for message that expects a returned result. */ sendWithCallback: function(msg, callback) { var requestId = this.nextInternalRequestId_++; this.internalRequestCallbacks_[requestId] = callback; this.send({ name: Channel.INTERNAL_REQUEST_MESSAGE, requestId: requestId, payload: msg }); }, /** * Invokes message callback using given message. * @return {*} The return value of the message callback or null. */ invokeMessageCallbacks_: function(msg) { var name = msg.name; if (this.messageCallbacks_[name]) return this.messageCallbacks_[name](msg); console.error('Error: Unexpected message, name=' + name); return null; }, /** * Invoked when a message is received. */ onMessage_: function(msg) { var name = msg.name; if (name == Channel.INTERNAL_REQUEST_MESSAGE) { var payload = msg.payload; var result = this.invokeMessageCallbacks_(payload); this.send({ name: Channel.INTERNAL_REPLY_MESSAGE, requestId: msg.requestId, result: result }); } else if (name == Channel.INTERNAL_REPLY_MESSAGE) { var callback = this.internalRequestCallbacks_[msg.requestId]; delete this.internalRequestCallbacks_[msg.requestId]; if (callback) callback(msg.result); } else { this.invokeMessageCallbacks_(msg); } } }; /** * Class factory. * @return {Channel} */ Channel.create = function() { return new Channel(); }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. var appId = 'hotword_audio_verification'; chrome.app.runtime.onLaunched.addListener(function() { // We need to focus the window if it already exists, since it // is created as 'hidden'. // // Note: If we ever launch on another platform, make sure that this works // with window managers that support hiding (e.g. Cmd+h on an app window on // Mac). var appWindow = chrome.app.window.get(appId); if (appWindow) { appWindow.focus(); return; } chrome.app.window.create('main.html', { 'frame': 'none', 'resizable': false, 'hidden': true, 'id': appId, 'innerBounds': { 'width': 784, 'height': 448 } }); }); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. var appWindow = chrome.app.window.current(); document.addEventListener('DOMContentLoaded', function() { chrome.hotwordPrivate.getLocalizedStrings(function(strings) { loadTimeData.data = strings; i18nTemplate.process(document, loadTimeData); var flow = new Flow(); flow.startFlow(); var pressFunction = function(e) { // Only respond to 'Enter' key presses. if (e.type == 'keyup' && e.keyIdentifier != 'Enter') return; var classes = e.target.classList; if (classes.contains('close') || classes.contains('finish-button')) { flow.stopTraining(); appWindow.close(); e.preventDefault(); } if (classes.contains('retry-button')) { flow.handleRetry(); e.preventDefault(); } }; $('steps').addEventListener('click', pressFunction); $('steps').addEventListener('keyup', pressFunction); $('audio-history-agree').addEventListener('click', function(e) { flow.enableAudioHistory(); e.preventDefault(); }); $('hotword-start').addEventListener('click', function(e) { flow.advanceStep(); e.preventDefault(); }); $('settings-link').addEventListener('click', function(e) { chrome.browser.openTab({'url': 'chrome://settings'}, function() {}); e.preventDefault(); }); }); }); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. (function() { // Correspond to steps in the hotword opt-in flow. /** @const */ var START = 'start-container'; /** @const */ var AUDIO_HISTORY = 'audio-history-container'; /** @const */ var SPEECH_TRAINING = 'speech-training-container'; /** @const */ var FINISH = 'finish-container'; /** * These flows correspond to the three LaunchModes as defined in * chrome/browser/search/hotword_service.h and should be kept in sync * with them. * @const */ var FLOWS = [ [START, SPEECH_TRAINING, FINISH], [START, AUDIO_HISTORY, SPEECH_TRAINING, FINISH], [SPEECH_TRAINING, FINISH] ]; /** * The launch mode. This enum needs to be kept in sync with that of * the same name in hotword_service.h. * @enum {number} */ var LaunchMode = { HOTWORD_ONLY: 0, HOTWORD_AND_AUDIO_HISTORY: 1, RETRAIN: 2 }; /** * The training state. * @enum {string} */ var TrainingState = { RESET: 'reset', TIMEOUT: 'timeout', ERROR: 'error', }; /** * Class to control the page flow of the always-on hotword and * Audio History opt-in process. * @constructor */ function Flow() { this.currentStepIndex_ = -1; this.currentFlow_ = []; /** * The mode that this app was launched in. * @private {LaunchMode} */ this.launchMode_ = LaunchMode.HOTWORD_AND_AUDIO_HISTORY; /** * Whether this flow is currently in the process of training a voice model. * @private {boolean} */ this.training_ = false; /** * The current training state. * @private {?TrainingState} */ this.trainingState_ = null; /** * Whether an expected hotword trigger has been received, indexed by * training step. * @private {boolean[]} */ this.hotwordTriggerReceived_ = []; /** * Prefix of the element ids for the page that is currently training. * @private {string} */ this.trainingPagePrefix_ = 'speech-training'; /** * Whether the speaker model for this flow has been finalized. * @private {boolean} */ this.speakerModelFinalized_ = false; /** * ID of the currently active timeout. * @private {?number} */ this.timeoutId_ = null; /** * Listener for the speakerModelSaved event. * @private {Function} */ this.speakerModelFinalizedListener_ = this.onSpeakerModelFinalized_.bind(this); /** * Listener for the hotword trigger event. * @private {Function} */ this.hotwordTriggerListener_ = this.handleHotwordTrigger_.bind(this); // Listen for the user locking the screen. chrome.idle.onStateChanged.addListener( this.handleIdleStateChanged_.bind(this)); // Listen for hotword settings changes. This used to detect when the user // switches to a different profile. if (chrome.hotwordPrivate.onEnabledChanged) { chrome.hotwordPrivate.onEnabledChanged.addListener( this.handleEnabledChanged_.bind(this)); } } /** * Advances the current step. Begins training if the speech-training * page has been reached. */ Flow.prototype.advanceStep = function() { this.currentStepIndex_++; if (this.currentStepIndex_ < this.currentFlow_.length) { if (this.currentFlow_[this.currentStepIndex_] == SPEECH_TRAINING) this.startTraining(); this.showStep_.apply(this); } }; /** * Gets the appropriate flow and displays its first page. */ Flow.prototype.startFlow = function() { if (chrome.hotwordPrivate && chrome.hotwordPrivate.getLaunchState) chrome.hotwordPrivate.getLaunchState(this.startFlowForMode_.bind(this)); }; /** * Starts the training process. */ Flow.prototype.startTraining = function() { // Don't start a training session if one already exists. if (this.training_) return; this.training_ = true; if (chrome.hotwordPrivate.onHotwordTriggered && !chrome.hotwordPrivate.onHotwordTriggered.hasListener( this.hotwordTriggerListener_)) { chrome.hotwordPrivate.onHotwordTriggered.addListener( this.hotwordTriggerListener_); } this.waitForHotwordTrigger_(0); if (chrome.hotwordPrivate.startTraining) chrome.hotwordPrivate.startTraining(); }; /** * Stops the training process. */ Flow.prototype.stopTraining = function() { if (!this.training_) return; this.training_ = false; if (chrome.hotwordPrivate.onHotwordTriggered) { chrome.hotwordPrivate.onHotwordTriggered. removeListener(this.hotwordTriggerListener_); } if (chrome.hotwordPrivate.stopTraining) chrome.hotwordPrivate.stopTraining(); }; /** * Attempts to enable audio history for the signed-in account. */ Flow.prototype.enableAudioHistory = function() { // Update UI $('audio-history-agree').disabled = true; $('audio-history-cancel').disabled = true; $('audio-history-error').hidden = true; $('audio-history-wait').hidden = false; if (chrome.hotwordPrivate.setAudioHistoryEnabled) { chrome.hotwordPrivate.setAudioHistoryEnabled( true, this.onAudioHistoryRequestCompleted_.bind(this)); } }; // ---- private methods: /** * Shows an error if the audio history setting was not enabled successfully. * @private */ Flow.prototype.handleAudioHistoryError_ = function() { $('audio-history-agree').disabled = false; $('audio-history-cancel').disabled = false; $('audio-history-wait').hidden = true; $('audio-history-error').hidden = false; // Set a timeout before focusing the Enable button so that screenreaders // have time to announce the error first. this.setTimeout_(function() { $('audio-history-agree').focus(); }.bind(this), 50); }; /** * Callback for when an audio history request completes. * @param {chrome.hotwordPrivate.AudioHistoryState} state The audio history * request state. * @private */ Flow.prototype.onAudioHistoryRequestCompleted_ = function(state) { if (!state.success || !state.enabled) { this.handleAudioHistoryError_(); return; } this.advanceStep(); }; /** * Shows an error if the speaker model has not been finalized. * @private */ Flow.prototype.handleSpeakerModelFinalizedError_ = function() { if (!this.training_) return; if (this.speakerModelFinalized_) return; this.updateTrainingState_(TrainingState.ERROR); this.stopTraining(); }; /** * Handles the speaker model finalized event. * @private */ Flow.prototype.onSpeakerModelFinalized_ = function() { this.speakerModelFinalized_ = true; if (chrome.hotwordPrivate.onSpeakerModelSaved) { chrome.hotwordPrivate.onSpeakerModelSaved.removeListener( this.speakerModelFinalizedListener_); } this.stopTraining(); this.setTimeout_(this.finishFlow_.bind(this), 2000); }; /** * Completes the training process. * @private */ Flow.prototype.finishFlow_ = function() { if (chrome.hotwordPrivate.setHotwordAlwaysOnSearchEnabled) { chrome.hotwordPrivate.setHotwordAlwaysOnSearchEnabled(true, this.advanceStep.bind(this)); } }; /** * Handles a user clicking on the retry button. */ Flow.prototype.handleRetry = function() { if (!(this.trainingState_ == TrainingState.TIMEOUT || this.trainingState_ == TrainingState.ERROR)) return; this.startTraining(); this.updateTrainingState_(TrainingState.RESET); }; // ---- private methods: /** * Completes the training process. * @private */ Flow.prototype.finalizeSpeakerModel_ = function() { if (!this.training_) return; // Listen for the success event from the NaCl module. if (chrome.hotwordPrivate.onSpeakerModelSaved && !chrome.hotwordPrivate.onSpeakerModelSaved.hasListener( this.speakerModelFinalizedListener_)) { chrome.hotwordPrivate.onSpeakerModelSaved.addListener( this.speakerModelFinalizedListener_); } this.speakerModelFinalized_ = false; this.setTimeout_(this.handleSpeakerModelFinalizedError_.bind(this), 30000); if (chrome.hotwordPrivate.finalizeSpeakerModel) chrome.hotwordPrivate.finalizeSpeakerModel(); }; /** * Returns the current training step. * @param {string} curStepClassName The name of the class of the current * training step. * @return {Object} The current training step, its index, and an array of * all training steps. Any of these can be undefined. * @private */ Flow.prototype.getCurrentTrainingStep_ = function(curStepClassName) { var steps = $(this.trainingPagePrefix_ + '-training').querySelectorAll('.train'); var curStep = $(this.trainingPagePrefix_ + '-training').querySelector('.listening'); return {current: curStep, index: Array.prototype.indexOf.call(steps, curStep), steps: steps}; }; /** * Updates the training state. * @param {TrainingState} state The training state. * @private */ Flow.prototype.updateTrainingState_ = function(state) { this.trainingState_ = state; this.updateErrorUI_(); }; /** * Waits two minutes and then checks for a training error. * @param {number} index The index of the training step. * @private */ Flow.prototype.waitForHotwordTrigger_ = function(index) { if (!this.training_) return; this.hotwordTriggerReceived_[index] = false; this.setTimeout_(this.handleTrainingTimeout_.bind(this, index), 120000); }; /** * Checks for and handles a training error. * @param {number} index The index of the training step. * @private */ Flow.prototype.handleTrainingTimeout_ = function(index) { if (this.hotwordTriggerReceived_[index]) return; this.timeoutTraining_(); }; /** * Times out training and updates the UI to show a "retry" message, if * currently training. * @private */ Flow.prototype.timeoutTraining_ = function() { if (!this.training_) return; this.clearTimeout_(); this.updateTrainingState_(TrainingState.TIMEOUT); this.stopTraining(); }; /** * Sets a timeout. If any timeout is active, clear it. * @param {Function} func The function to invoke when the timeout occurs. * @param {number} delay Timeout delay in milliseconds. * @private */ Flow.prototype.setTimeout_ = function(func, delay) { this.clearTimeout_(); this.timeoutId_ = setTimeout(function() { this.timeoutId_ = null; func(); }, delay); }; /** * Clears any currently active timeout. * @private */ Flow.prototype.clearTimeout_ = function() { if (this.timeoutId_ != null) { clearTimeout(this.timeoutId_); this.timeoutId_ = null; } }; /** * Updates the training error UI. * @private */ Flow.prototype.updateErrorUI_ = function() { if (!this.training_) return; var trainingSteps = this.getCurrentTrainingStep_('listening'); var steps = trainingSteps.steps; $(this.trainingPagePrefix_ + '-toast').hidden = this.trainingState_ != TrainingState.TIMEOUT; if (this.trainingState_ == TrainingState.RESET) { // We reset the training to begin at the first step. // The first step is reset to 'listening', while the rest // are reset to 'not-started'. var prompt = loadTimeData.getString('trainingFirstPrompt'); for (var i = 0; i < steps.length; ++i) { steps[i].classList.remove('recorded'); if (i == 0) { steps[i].classList.remove('not-started'); steps[i].classList.add('listening'); } else { steps[i].classList.add('not-started'); if (i == steps.length - 1) prompt = loadTimeData.getString('trainingLastPrompt'); else prompt = loadTimeData.getString('trainingMiddlePrompt'); } steps[i].querySelector('.text').textContent = prompt; } // Reset the buttonbar. $(this.trainingPagePrefix_ + '-processing').hidden = true; $(this.trainingPagePrefix_ + '-wait').hidden = false; $(this.trainingPagePrefix_ + '-error').hidden = true; $(this.trainingPagePrefix_ + '-retry').hidden = true; } else if (this.trainingState_ == TrainingState.TIMEOUT) { var curStep = trainingSteps.current; if (curStep) { curStep.classList.remove('listening'); curStep.classList.add('not-started'); } // Set a timeout before focusing the Retry button so that screenreaders // have time to announce the timeout first. this.setTimeout_(function() { $(this.trainingPagePrefix_ + '-toast').children[1].focus(); }.bind(this), 50); } else if (this.trainingState_ == TrainingState.ERROR) { // Update the buttonbar. $(this.trainingPagePrefix_ + '-wait').hidden = true; $(this.trainingPagePrefix_ + '-error').hidden = false; $(this.trainingPagePrefix_ + '-retry').hidden = false; $(this.trainingPagePrefix_ + '-processing').hidden = false; // Set a timeout before focusing the Retry button so that screenreaders // have time to announce the error first. this.setTimeout_(function() { $(this.trainingPagePrefix_ + '-retry').children[0].focus(); }.bind(this), 50); } }; /** * Handles a hotword trigger event and updates the training UI. * @private */ Flow.prototype.handleHotwordTrigger_ = function() { var trainingSteps = this.getCurrentTrainingStep_('listening'); if (!trainingSteps.current) return; var index = trainingSteps.index; this.hotwordTriggerReceived_[index] = true; trainingSteps.current.querySelector('.text').textContent = loadTimeData.getString('trainingRecorded'); trainingSteps.current.classList.remove('listening'); trainingSteps.current.classList.add('recorded'); if (trainingSteps.steps[index + 1]) { trainingSteps.steps[index + 1].classList.remove('not-started'); trainingSteps.steps[index + 1].classList.add('listening'); this.waitForHotwordTrigger_(index + 1); return; } // Only the last step makes it here. var buttonElem = $(this.trainingPagePrefix_ + '-processing').hidden = false; this.finalizeSpeakerModel_(); }; /** * Handles a chrome.idle.onStateChanged event and times out the training if * the state is "locked". * @param {!string} state State, one of "active", "idle", or "locked". * @private */ Flow.prototype.handleIdleStateChanged_ = function(state) { if (state == 'locked') this.timeoutTraining_(); }; /** * Handles a chrome.hotwordPrivate.onEnabledChanged event and times out * training if the user is no longer the active user (user switches profiles). * @private */ Flow.prototype.handleEnabledChanged_ = function() { if (chrome.hotwordPrivate.getStatus) { chrome.hotwordPrivate.getStatus(function(status) { if (status.userIsActive) return; this.timeoutTraining_(); }.bind(this)); } }; /** * Gets and starts the appropriate flow for the launch mode. * @param {chrome.hotwordPrivate.LaunchState} state Launch state of the * Hotword Audio Verification App. * @private */ Flow.prototype.startFlowForMode_ = function(state) { this.launchMode_ = state.launchMode; assert(state.launchMode >= 0 && state.launchMode < FLOWS.length, 'Invalid Launch Mode.'); this.currentFlow_ = FLOWS[state.launchMode]; if (state.launchMode == LaunchMode.HOTWORD_ONLY) { $('intro-description-audio-history-enabled').hidden = false; } else if (state.launchMode == LaunchMode.HOTWORD_AND_AUDIO_HISTORY) { $('intro-description').hidden = false; } this.advanceStep(); }; /** * Displays the current step. If the current step is not the first step, * also hides the previous step. Focuses the current step's first button. * @private */ Flow.prototype.showStep_ = function() { var currentStepId = this.currentFlow_[this.currentStepIndex_]; var currentStep = document.getElementById(currentStepId); currentStep.hidden = false; cr.ui.setInitialFocus(currentStep); var previousStep = null; if (this.currentStepIndex_ > 0) previousStep = this.currentFlow_[this.currentStepIndex_ - 1]; if (previousStep) document.getElementById(previousStep).hidden = true; chrome.app.window.current().show(); }; window.Flow = Flow; })(); /* Copyright 2014 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ /* TODO(xdai): Remove hard-coded font-family for 'Roboto'. */ * { box-sizing: border-box; color: rgba(0, 0, 0, .54); font-family: Roboto, 'Noto Sans', sans-serif; font-size: 13px; margin: 0; padding: 0; } #start-container * { color: #fff; } #start-container h2 { font-size: 15px; font-weight: normal; line-height: 24px; margin-top: 16px; } #start-container h3 { font-weight: normal; margin: 42px 16px 24px 16px; } #start-container div.container { background: rgb(66, 133, 244); } div.intro-image { background: -webkit-image-set( url(../images/intro-1x.png) 1x, url(../images/intro-2x.png) 2x) no-repeat; height: 152px; left: 24px; position: absolute; top: 122px; width: 304px; } div.intro-text { left: 328px; position: absolute; text-align: center; top: 116px; width: 432px; } #start-container div.buttonbar { background-color: rgb(51, 103, 214); height: 56px; padding: 0; text-align: center; } #start-container .buttonbar button { height: 100%; margin: 0; padding: 0 8px; width: 100%; } a { -webkit-app-region: no-drag; color: rgb(51, 103, 214); text-decoration: none; } button { -webkit-app-region: no-drag; } body { -webkit-app-region: drag; background: #ddd; } h1 { font-size: 20px; font-weight: normal; line-height: 32px; } h3 { font-size: 13px; line-height: 20px; } div.container { background: #fff; height: 448px; position: relative; width: 784px; } div.header { background: -webkit-image-set( url(../images/gradient-1x.png) 1x, url(../images/gradient-2x.png) 2x) no-repeat; height: 128px; padding: 70px 42px 0 42px; } div.header h1 { color: #fff; } div.content { height: 264px; line-height: 20px; padding: 32px 42px 0 42px; } div.content h3 { color: rgba(0, 0, 0, .87); margin-bottom: 16px; } div.col-2 { color: rgba(0, 0, 0, .54); float: left; width: 320px; } div.col-spacing { float: left; height: 216px; width: 60px; } div.v-spacing { height: 8px; } a[is='action-link'] { display: inline-block; font-size: 14px; margin-top: 22px; text-decoration: none; text-transform: uppercase; } .train { clear: both; line-height: 18px; margin-bottom: 24px; } .train .icon { display: inline-block; height: 18px; margin-right: 8px; vertical-align: top; width: 18px; } .train .text { color: rgba(0, 0, 0, .54); display: inline-block; line-height: 13px; padding-top: 3px; vertical-align: top; } .train.recorded .text { color: rgba(66, 133, 244, 1); } @-webkit-keyframes rotate { from { -webkit-transform: rotate(0); } to { -webkit-transform: rotate(359deg); } } .train.listening .icon { -webkit-animation: rotate 2s linear infinite; background: -webkit-image-set( url(../images/placeholder-loader-1x.png) 1x, url(../images/placeholder-loader-2x.png) 2x) no-repeat; } .train.not-started .icon { background: -webkit-image-set( url(../images/ic-check-gray-1x.png) 1x, url(../images/ic-check-gray-2x.png) 2x) no-repeat; } .train.recorded .icon { background: -webkit-image-set( url(../images/ic-check-blue-1x.png) 1x, url(../images/ic-check-blue-2x.png) 2x) no-repeat; } .check { clear: both; height: 18px; margin-bottom: 24px; } .check .icon { background: -webkit-image-set( url(../images/ic-check-blue-1x.png) 1x, url(../images/ic-check-blue-2x.png) 2x) no-repeat; display: inline-block; height: 18px; margin-right: 8px; vertical-align: top; width: 18px; } .check .text { color: rgba(0, 0, 0, .54); display: inline-block; height: 18px; line-height: 18px; padding-top: 2px; vertical-align: top; } div.buttonbar { background-color: rgba(236,239, 241, 1); bottom: 0; height: 56px; padding: 12px; position: absolute; width: 100%; } .buttonbar button { background: none; border: none; display: inline-block; font-weight: 700; height: 32px; line-height: 32px; margin-left: 8px; min-width: 56px; padding: 1px 8px 0 8px; text-transform: uppercase; } .buttonbar button:disabled { opacity: .5; } .buttonbar button.grayed-out { color: rgba(0, 0, 0, .28); text-transform: none; } .buttonbar button.primary { color: rgb(51, 103, 214); } .buttonbar .left { float: left; text-align: left; } .buttonbar .left button:first-child { margin-left: 0; } .buttonbar .right { float: right; text-align: right; } .buttonbar .message { margin: 7px 0 0 2px; } .buttonbar .message .icon { display: inline-block; height: 18px; margin-right: 8px; vertical-align: top; width: 18px; } .buttonbar .message.wait .icon { -webkit-animation: rotate 2s linear infinite; background: -webkit-image-set( url(../images/placeholder-loader-1x.png) 1x, url(../images/placeholder-loader-2x.png) 2x) no-repeat; } .buttonbar .message.error .icon { background: -webkit-image-set( url(../images/ic-error-1x.png) 1x, url(../images/ic-error-2x.png) 2x) no-repeat; } .buttonbar .message .text { color: rgba(0, 0, 0, .54); display: inline-block; line-height: 18px; padding-top: 2px; vertical-align: top; } .buttonbar .message.error .text { color: rgb(213, 0, 0); } .close { -webkit-app-region: no-drag; background: -webkit-image-set( url(../images/ic-x-white-1x.png) 1x, url(../images/ic-x-white-2x.png) 2x) center center no-repeat; 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All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. cr.define('hotword', function() { 'use strict'; /** * Class used to manage always-on hotwording. Automatically starts hotwording * on startup, if always-on is enabled, and starts/stops hotwording at * appropriate times. * @param {!hotword.StateManager} stateManager * @constructor * @extends {hotword.BaseSessionManager} */ function AlwaysOnManager(stateManager) { hotword.BaseSessionManager.call(this, stateManager, hotword.constants.SessionSource.ALWAYS); } AlwaysOnManager.prototype = { __proto__: hotword.BaseSessionManager.prototype, /** @override */ enabled: function() { return this.stateManager.isAlwaysOnEnabled(); }, /** @override */ updateListeners: function() { hotword.BaseSessionManager.prototype.updateListeners.call(this); if (this.enabled()) this.startSession(); } }; return { AlwaysOnManager: AlwaysOnManager }; }); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. 'use strict'; /** * @fileoverview This is the audio client content script injected into eligible * Google.com and New tab pages for interaction between the Webpage and the * Hotword extension. */ (function() { /** * @constructor */ var AudioClient = function() { /** @private {Element} */ this.speechOverlay_ = null; /** @private {number} */ this.checkSpeechUiRetries_ = 0; /** * Port used to communicate with the audio manager. * @private {?Port} */ this.port_ = null; /** * Keeps track of the effects of different commands. Used to verify that * proper UIs are shown to the user. * @private {Object} */ this.uiStatus_ = null; /** * Bound function used to handle commands sent from the page to this script. * @private {Function} */ this.handleCommandFromPageFunc_ = null; }; /** * Messages sent to the page to control the voice search UI. * @enum {string} */ AudioClient.CommandToPage = { HOTWORD_VOICE_TRIGGER: 'vt', HOTWORD_STARTED: 'hs', HOTWORD_ENDED: 'hd', HOTWORD_TIMEOUT: 'ht', HOTWORD_ERROR: 'he' }; /** * Messages received from the page used to indicate voice search state. * @enum {string} */ AudioClient.CommandFromPage = { SPEECH_START: 'ss', SPEECH_END: 'se', SPEECH_RESET: 'sr', SHOWING_HOTWORD_START: 'shs', SHOWING_ERROR_MESSAGE: 'sem', SHOWING_TIMEOUT_MESSAGE: 'stm', CLICKED_RESUME: 'hcc', CLICKED_RESTART: 'hcr', CLICKED_DEBUG: 'hcd' }; /** * Errors that are sent to the hotword extension. * @enum {string} */ AudioClient.Error = { NO_SPEECH_UI: 'ac1', NO_HOTWORD_STARTED_UI: 'ac2', NO_HOTWORD_TIMEOUT_UI: 'ac3', NO_HOTWORD_ERROR_UI: 'ac4' }; /** * @const {string} * @private */ AudioClient.HOTWORD_EXTENSION_ID_ = 'nbpagnldghgfoolbancepceaanlmhfmd'; /** * Number of times to retry checking a transient error. * @const {number} * @private */ AudioClient.MAX_RETRIES = 3; /** * Delay to wait in milliseconds before rechecking for any transient errors. * @const {number} * @private */ AudioClient.RETRY_TIME_MS_ = 2000; /** * DOM ID for the speech UI overlay. * @const {string} * @private */ AudioClient.SPEECH_UI_OVERLAY_ID_ = 'spch'; /** * @const {string} * @private */ AudioClient.HELP_CENTER_URL_ = 'https://support.google.com/chrome/?p=ui_hotword_search'; /** * @const {string} * @private */ AudioClient.CLIENT_PORT_NAME_ = 'chwcpn'; /** * Existence of the Audio Client. * @const {string} * @private */ AudioClient.EXISTS_ = 'chwace'; /** * Checks for the presence of speech overlay UI DOM elements. * @private */ AudioClient.prototype.checkSpeechOverlayUi_ = function() { if (!this.speechOverlay_) { window.setTimeout(this.delayedCheckSpeechOverlayUi_.bind(this), AudioClient.RETRY_TIME_MS_); } else { this.checkSpeechUiRetries_ = 0; } }; /** * Function called to check for the speech UI overlay after some time has * passed since an initial check. Will either retry triggering the speech * or sends an error message depending on the number of retries. * @private */ AudioClient.prototype.delayedCheckSpeechOverlayUi_ = function() { this.speechOverlay_ = document.getElementById( AudioClient.SPEECH_UI_OVERLAY_ID_); if (!this.speechOverlay_) { if (this.checkSpeechUiRetries_++ < AudioClient.MAX_RETRIES) { this.sendCommandToPage_(AudioClient.CommandToPage.VOICE_TRIGGER); this.checkSpeechOverlayUi_(); } else { this.sendCommandToExtension_(AudioClient.Error.NO_SPEECH_UI); } } else { this.checkSpeechUiRetries_ = 0; } }; /** * Checks that the triggered UI is actually displayed. * @param {AudioClient.CommandToPage} command Command that was send. * @private */ AudioClient.prototype.checkUi_ = function(command) { this.uiStatus_[command].timeoutId = window.setTimeout(this.failedCheckUi_.bind(this, command), AudioClient.RETRY_TIME_MS_); }; /** * Function called when the UI verification is not called in time. Will either * retry the command or sends an error message, depending on the number of * retries for the command. * @param {AudioClient.CommandToPage} command Command that was sent. * @private */ AudioClient.prototype.failedCheckUi_ = function(command) { if (this.uiStatus_[command].tries++ < AudioClient.MAX_RETRIES) { this.sendCommandToPage_(command); this.checkUi_(command); } else { this.sendCommandToExtension_(this.uiStatus_[command].error); } }; /** * Confirm that an UI element has been shown. * @param {AudioClient.CommandToPage} command UI to confirm. * @private */ AudioClient.prototype.verifyUi_ = function(command) { if (this.uiStatus_[command].timeoutId) { window.clearTimeout(this.uiStatus_[command].timeoutId); this.uiStatus_[command].timeoutId = null; this.uiStatus_[command].tries = 0; } }; /** * Sends a command to the audio manager. * @param {string} commandStr command to send to plugin. * @private */ AudioClient.prototype.sendCommandToExtension_ = function(commandStr) { if (this.port_) this.port_.postMessage({'cmd': commandStr}); }; /** * Handles a message from the audio manager. * @param {{cmd: string}} commandObj Command from the audio manager. * @private */ AudioClient.prototype.handleCommandFromExtension_ = function(commandObj) { var command = commandObj['cmd']; if (command) { switch (command) { case AudioClient.CommandToPage.HOTWORD_VOICE_TRIGGER: this.sendCommandToPage_(command); this.checkSpeechOverlayUi_(); break; case AudioClient.CommandToPage.HOTWORD_STARTED: this.sendCommandToPage_(command); this.checkUi_(command); break; case AudioClient.CommandToPage.HOTWORD_ENDED: this.sendCommandToPage_(command); break; case AudioClient.CommandToPage.HOTWORD_TIMEOUT: this.sendCommandToPage_(command); this.checkUi_(command); break; case AudioClient.CommandToPage.HOTWORD_ERROR: this.sendCommandToPage_(command); this.checkUi_(command); break; } } }; /** * @param {AudioClient.CommandToPage} commandStr Command to send. * @private */ AudioClient.prototype.sendCommandToPage_ = function(commandStr) { window.postMessage({'type': commandStr}, '*'); }; /** * Handles a message from the html window. * @param {!MessageEvent} messageEvent Message event from the window. * @private */ AudioClient.prototype.handleCommandFromPage_ = function(messageEvent) { if (messageEvent.source == window && messageEvent.data.type) { var command = messageEvent.data.type; switch (command) { case AudioClient.CommandFromPage.SPEECH_START: this.speechActive_ = true; this.sendCommandToExtension_(command); break; case AudioClient.CommandFromPage.SPEECH_END: this.speechActive_ = false; this.sendCommandToExtension_(command); break; case AudioClient.CommandFromPage.SPEECH_RESET: this.speechActive_ = false; this.sendCommandToExtension_(command); break; case 'SPEECH_RESET': // Legacy, for embedded NTP. this.speechActive_ = false; this.sendCommandToExtension_(AudioClient.CommandFromPage.SPEECH_END); break; case AudioClient.CommandFromPage.CLICKED_RESUME: this.sendCommandToExtension_(command); break; case AudioClient.CommandFromPage.CLICKED_RESTART: this.sendCommandToExtension_(command); break; case AudioClient.CommandFromPage.CLICKED_DEBUG: window.open(AudioClient.HELP_CENTER_URL_, '_blank'); break; case AudioClient.CommandFromPage.SHOWING_HOTWORD_START: this.verifyUi_(AudioClient.CommandToPage.HOTWORD_STARTED); break; case AudioClient.CommandFromPage.SHOWING_ERROR_MESSAGE: this.verifyUi_(AudioClient.CommandToPage.HOTWORD_ERROR); break; case AudioClient.CommandFromPage.SHOWING_TIMEOUT_MESSAGE: this.verifyUi_(AudioClient.CommandToPage.HOTWORD_TIMEOUT); break; } } }; /** * Initialize the content script. */ AudioClient.prototype.initialize = function() { if (AudioClient.EXISTS_ in window) return; window[AudioClient.EXISTS_] = true; // UI verification object. this.uiStatus_ = {}; this.uiStatus_[AudioClient.CommandToPage.HOTWORD_STARTED] = { timeoutId: null, tries: 0, error: AudioClient.Error.NO_HOTWORD_STARTED_UI }; this.uiStatus_[AudioClient.CommandToPage.HOTWORD_TIMEOUT] = { timeoutId: null, tries: 0, error: AudioClient.Error.NO_HOTWORD_TIMEOUT_UI }; this.uiStatus_[AudioClient.CommandToPage.HOTWORD_ERROR] = { timeoutId: null, tries: 0, error: AudioClient.Error.NO_HOTWORD_ERROR_UI }; this.handleCommandFromPageFunc_ = this.handleCommandFromPage_.bind(this); window.addEventListener('message', this.handleCommandFromPageFunc_, false); this.initPort_(); }; /** * Initialize the communications port with the audio manager. This * function will be also be called again if the audio-manager * disconnects for some reason (such as the extension * background.html page being reloaded). * @private */ AudioClient.prototype.initPort_ = function() { this.port_ = chrome.runtime.connect( AudioClient.HOTWORD_EXTENSION_ID_, {'name': AudioClient.CLIENT_PORT_NAME_}); // Note that this listen may have to be destroyed manually if AudioClient // is ever destroyed on this tab. this.port_.onDisconnect.addListener( (function(e) { if (this.handleCommandFromPageFunc_) { window.removeEventListener( 'message', this.handleCommandFromPageFunc_, false); } delete window[AudioClient.EXISTS_]; }).bind(this)); // See note above. this.port_.onMessage.addListener( this.handleCommandFromExtension_.bind(this)); if (this.speechActive_) { this.sendCommandToExtension_(AudioClient.CommandFromPage.SPEECH_START); } else { // It's possible for this script to be injected into the page after it has // completed loaded (i.e. when prerendering). In this case, this script // won't receive a SPEECH_RESET from the page to forward onto the // extension. To make up for this, always send a SPEECH_RESET. This means // in most cases, the extension will receive SPEECH_RESET twice, one from // this sendCommandToExtension_ and the one forwarded from the page. But // that's OK and the extension can handle it. this.sendCommandToExtension_(AudioClient.CommandFromPage.SPEECH_RESET); } }; // Initializes as soon as the code is ready, do not wait for the page. new AudioClient().initialize(); })(); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. cr.define('hotword', function() { 'use strict'; /** * Base class for managing hotwording sessions. * @param {!hotword.StateManager} stateManager Manager of global hotwording * state. * @param {!hotword.constants.SessionSource} sessionSource Source of the * hotword session request. * @constructor */ function BaseSessionManager(stateManager, sessionSource) { /** * Manager of global hotwording state. * @protected {!hotword.StateManager} */ this.stateManager = stateManager; /** * Source of the hotword session request. * @private {!hotword.constants.SessionSource} */ this.sessionSource_ = sessionSource; /** * Chrome event listeners. Saved so that they can be de-registered when * hotwording is disabled. * @private */ this.sessionRequestedListener_ = this.handleSessionRequested_.bind(this); this.sessionStoppedListener_ = this.handleSessionStopped_.bind(this); // Need to setup listeners on startup, otherwise events that caused the // event page to start up, will be lost. this.setupListeners_(); this.stateManager.onStatusChanged.addListener(function() { hotword.debug('onStatusChanged'); this.updateListeners(); }.bind(this)); } BaseSessionManager.prototype = { /** * Return whether or not this session type is enabled. * @protected * @return {boolean} */ enabled: assertNotReached, /** * Called when the hotwording session is stopped. * @protected */ onSessionStop: function() { }, /** * Starts a launcher hotwording session. * @param {hotword.constants.TrainingMode=} opt_mode The mode to start the * recognizer in. */ startSession: function(opt_mode) { this.stateManager.startSession( this.sessionSource_, function() { chrome.hotwordPrivate.setHotwordSessionState(true, function() {}); }, this.handleHotwordTrigger.bind(this), opt_mode); }, /** * Stops a launcher hotwording session. * @private */ stopSession_: function() { this.stateManager.stopSession(this.sessionSource_); this.onSessionStop(); }, /** * Handles a hotword triggered event. * @param {?Object} log Audio log data, if audio logging is enabled. * @protected */ handleHotwordTrigger: function(log) { hotword.debug('Hotword triggered: ' + this.sessionSource_, log); chrome.hotwordPrivate.notifyHotwordRecognition('search', log, function() {}); }, /** * Handles a hotwordPrivate.onHotwordSessionRequested event. * @private */ handleSessionRequested_: function() { hotword.debug('handleSessionRequested_: ' + this.sessionSource_); this.startSession(); }, /** * Handles a hotwordPrivate.onHotwordSessionStopped event. * @private */ handleSessionStopped_: function() { hotword.debug('handleSessionStopped_: ' + this.sessionSource_); this.stopSession_(); }, /** * Set up event listeners. * @private */ setupListeners_: function() { if (chrome.hotwordPrivate.onHotwordSessionRequested.hasListener( this.sessionRequestedListener_)) { return; } chrome.hotwordPrivate.onHotwordSessionRequested.addListener( this.sessionRequestedListener_); chrome.hotwordPrivate.onHotwordSessionStopped.addListener( this.sessionStoppedListener_); }, /** * Remove event listeners. * @private */ removeListeners_: function() { chrome.hotwordPrivate.onHotwordSessionRequested.removeListener( this.sessionRequestedListener_); chrome.hotwordPrivate.onHotwordSessionStopped.removeListener( this.sessionStoppedListener_); }, /** * Update event listeners based on the current hotwording state. * @protected */ updateListeners: function() { if (this.enabled()) { this.setupListeners_(); } else { this.removeListeners_(); this.stopSession_(); } } }; return { BaseSessionManager: BaseSessionManager }; }); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. cr.define('hotword.constants', function() { 'use strict'; /** * Number of seconds of audio to record when logging is enabled. * @const {number} */ var AUDIO_LOG_SECONDS = 2; /** * Timeout in seconds, for detecting false positives with a hotword stream. * @const {number} */ var HOTWORD_STREAM_TIMEOUT_SECONDS = 2; /** * Hotword data shared module extension's ID. * @const {string} */ var SHARED_MODULE_ID = 'lccekmodgklaepjeofjdjpbminllajkg'; /** * Path to shared module data. * @const {string} */ var SHARED_MODULE_ROOT = '_modules/' + SHARED_MODULE_ID; /** * Name used by the content scripts to create communications Ports. * @const {string} */ var CLIENT_PORT_NAME = 'chwcpn'; /** * The field name to specify the command among pages. * @const {string} */ var COMMAND_FIELD_NAME = 'cmd'; /** * The speaker model file name. * @const {string} */ var SPEAKER_MODEL_FILE_NAME = 'speaker_model.data'; /** * The training utterance file name prefix. * @const {string} */ var UTTERANCE_FILE_PREFIX = 'utterance-'; /** * The training utterance file extension. * @const {string} */ var UTTERANCE_FILE_EXTENSION = '.raw'; /** * The number of training utterances required to train the speaker model. * @const {number} */ var NUM_TRAINING_UTTERANCES = 3; /** * The size of the file system requested for reading the speaker model and * utterances. This number should always be larger than the combined file size, * currently 576338 bytes as of February 2015. * @const {number} */ var FILE_SYSTEM_SIZE_BYTES = 1048576; /** * Time to wait for expected messages, in milliseconds. * @enum {number} */ var TimeoutMs = { SHORT: 200, NORMAL: 500, LONG: 2000 }; /** * The URL of the files used by the plugin. * @enum {string} */ var File = { RECOGNIZER_CONFIG: 'hotword.data', }; /** * Errors emitted by the NaClManager. * @enum {string} */ var Error = { NACL_CRASH: 'nacl_crash', TIMEOUT: 'timeout', }; /** * Event types supported by NaClManager. * @enum {string} */ var Event = { READY: 'ready', TRIGGER: 'trigger', SPEAKER_MODEL_SAVED: 'speaker model saved', ERROR: 'error', TIMEOUT: 'timeout', }; /** * Messages for communicating with the NaCl recognizer plugin. These must match * constants in /hotword_plugin.c * @enum {string} */ var NaClPlugin = { RESTART: 'r', SAMPLE_RATE_PREFIX: 'h', MODEL_PREFIX: 'm', STOP: 's', LOG: 'l', DSP: 'd', BEGIN_SPEAKER_MODEL: 'b', ADAPT_SPEAKER_MODEL: 'a', FINISH_SPEAKER_MODEL: 'f', SPEAKER_MODEL_SAVED: 'sm_saved', REQUEST_MODEL: 'model', MODEL_LOADED: 'model_loaded', READY_FOR_AUDIO: 'audio', STOPPED: 'stopped', HOTWORD_DETECTED: 'hotword', MS_CONFIGURED: 'ms_configured', TIMEOUT: 'timeout' }; /** * Messages sent from the injected scripts to the Google page. * @enum {string} */ var CommandToPage = { HOTWORD_VOICE_TRIGGER: 'vt', HOTWORD_STARTED: 'hs', HOTWORD_ENDED: 'hd', HOTWORD_TIMEOUT: 'ht', HOTWORD_ERROR: 'he' }; /** * Messages sent from the Google page to the extension or to the * injected script and then passed to the extension. * @enum {string} */ var CommandFromPage = { SPEECH_START: 'ss', SPEECH_END: 'se', SPEECH_RESET: 'sr', SHOWING_HOTWORD_START: 'shs', SHOWING_ERROR_MESSAGE: 'sem', SHOWING_TIMEOUT_MESSAGE: 'stm', CLICKED_RESUME: 'hcc', CLICKED_RESTART: 'hcr', CLICKED_DEBUG: 'hcd', WAKE_UP_HELPER: 'wuh', // Command specifically for the opt-in promo below this line. // User has explicitly clicked 'no'. CLICKED_NO_OPTIN: 'hcno', // User has opted in. CLICKED_OPTIN: 'hco', // User clicked on the microphone. PAGE_WAKEUP: 'wu' }; /** * Source of a hotwording session request. * @enum {string} */ var SessionSource = { LAUNCHER: 'launcher', NTP: 'ntp', ALWAYS: 'always', TRAINING: 'training' }; /** * The mode to start the hotword recognizer in. * @enum {string} */ var RecognizerStartMode = { NORMAL: 'normal', NEW_MODEL: 'new model', ADAPT_MODEL: 'adapt model' }; /** * MediaStream open success/errors to be reported via UMA. * DO NOT remove or renumber values in this enum. Only add new ones. * @enum {number} */ var UmaMediaStreamOpenResult = { SUCCESS: 0, UNKNOWN: 1, NOT_SUPPORTED: 2, PERMISSION_DENIED: 3, CONSTRAINT_NOT_SATISFIED: 4, OVERCONSTRAINED: 5, NOT_FOUND: 6, ABORT: 7, SOURCE_UNAVAILABLE: 8, PERMISSION_DISMISSED: 9, INVALID_STATE: 10, DEVICES_NOT_FOUND: 11, INVALID_SECURITY_ORIGIN: 12, MAX: 12 }; /** * UMA metrics. * DO NOT change these enum values. * @enum {string} */ var UmaMetrics = { TRIGGER: 'Hotword.HotwordTrigger', MEDIA_STREAM_RESULT: 'Hotword.HotwordMediaStreamResult', NACL_PLUGIN_LOAD_RESULT: 'Hotword.HotwordNaClPluginLoadResult', NACL_MESSAGE_TIMEOUT: 'Hotword.HotwordNaClMessageTimeout', TRIGGER_SOURCE: 'Hotword.HotwordTriggerSource' }; /** * Message waited for by NaCl plugin, to be reported via UMA. * DO NOT remove or renumber values in this enum. Only add new ones. * @enum {number} */ var UmaNaClMessageTimeout = { REQUEST_MODEL: 0, MODEL_LOADED: 1, READY_FOR_AUDIO: 2, STOPPED: 3, HOTWORD_DETECTED: 4, MS_CONFIGURED: 5, MAX: 5 }; /** * NaCl plugin load success/errors to be reported via UMA. * DO NOT remove or renumber values in this enum. Only add new ones. * @enum {number} */ var UmaNaClPluginLoadResult = { SUCCESS: 0, UNKNOWN: 1, CRASH: 2, NO_MODULE_FOUND: 3, MAX: 3 }; /** * Source of hotword triggering, to be reported via UMA. * DO NOT remove or renumber values in this enum. Only add new ones. * @enum {number} */ var UmaTriggerSource = { LAUNCHER: 0, NTP_GOOGLE_COM: 1, ALWAYS_ON: 2, TRAINING: 3, MAX: 3 }; /** * The browser UI language. * @const {string} */ var UI_LANGUAGE = (chrome.i18n && chrome.i18n.getUILanguage) ? chrome.i18n.getUILanguage() : ''; return { AUDIO_LOG_SECONDS: AUDIO_LOG_SECONDS, CLIENT_PORT_NAME: CLIENT_PORT_NAME, COMMAND_FIELD_NAME: COMMAND_FIELD_NAME, FILE_SYSTEM_SIZE_BYTES: FILE_SYSTEM_SIZE_BYTES, HOTWORD_STREAM_TIMEOUT_SECONDS: HOTWORD_STREAM_TIMEOUT_SECONDS, NUM_TRAINING_UTTERANCES: NUM_TRAINING_UTTERANCES, SHARED_MODULE_ID: SHARED_MODULE_ID, SHARED_MODULE_ROOT: SHARED_MODULE_ROOT, SPEAKER_MODEL_FILE_NAME: SPEAKER_MODEL_FILE_NAME, UI_LANGUAGE: UI_LANGUAGE, UTTERANCE_FILE_EXTENSION: UTTERANCE_FILE_EXTENSION, UTTERANCE_FILE_PREFIX: UTTERANCE_FILE_PREFIX, CommandToPage: CommandToPage, CommandFromPage: CommandFromPage, Error: Error, Event: Event, File: File, NaClPlugin: NaClPlugin, RecognizerStartMode: RecognizerStartMode, SessionSource: SessionSource, TimeoutMs: TimeoutMs, UmaMediaStreamOpenResult: UmaMediaStreamOpenResult, UmaMetrics: UmaMetrics, UmaNaClMessageTimeout: UmaNaClMessageTimeout, UmaNaClPluginLoadResult: UmaNaClPluginLoadResult, UmaTriggerSource: UmaTriggerSource }; }); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. cr.define('hotword', function() { 'use strict'; /** * Class used to keep this extension alive. When started, this calls an * extension API on a regular basis which resets the event page keep-alive * timer. * @constructor */ function KeepAlive() { this.timeoutId_ = null; } KeepAlive.prototype = { /** * Start the keep alive process. Safe to call multiple times. */ start: function() { if (this.timeoutId_ == null) this.timeoutId_ = setTimeout(this.handleTimeout_.bind(this), 1000); }, /** * Stops the keep alive process. Safe to call multiple times. */ stop: function() { if (this.timeoutId_ != null) { clearTimeout(this.timeoutId_); this.timeoutId_ = null; } }, /** * Handle the timer timeout. Calls an extension API and schedules the next * timeout. * @private */ handleTimeout_: function() { // Dummy extensions API call used to keep this event page alive by // resetting the shutdown timer. chrome.runtime.getPlatformInfo(function(info) {}); this.timeoutId_ = setTimeout(this.handleTimeout_.bind(this), 1000); } }; return { KeepAlive: KeepAlive }; }); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. cr.define('hotword', function() { 'use strict'; /** * Class used to manage the interaction between hotwording and the launcher * (app list). * @param {!hotword.StateManager} stateManager * @constructor * @extends {hotword.BaseSessionManager} */ function LauncherManager(stateManager) { hotword.BaseSessionManager.call(this, stateManager, hotword.constants.SessionSource.LAUNCHER); } LauncherManager.prototype = { __proto__: hotword.BaseSessionManager.prototype, /** @override */ enabled: function() { return this.stateManager.isSometimesOnEnabled(); }, /** @override */ onSessionStop: function() { chrome.hotwordPrivate.setHotwordSessionState(false, function() {}); } }; return { LauncherManager: LauncherManager }; }); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. cr.define('hotword', function() { 'use strict'; /** * Wrapper around console.log allowing debug log message to be enabled during * development. * @param {...*} varArgs */ function debug(varArgs) { if (hotword.DEBUG || window.localStorage['hotword.DEBUG']) console.log.apply(console, arguments); } return { DEBUG: false, debug: debug }; }); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. (function() { 'use strict'; /** * @fileoverview This extension provides hotword triggering capabilites to * Chrome. * * This extension contains all the JavaScript for loading and managing the * hotword detector. The hotword detector and language model data will be * provided by a shared module loaded from the web store. * * IMPORTANT! Whenever adding new events, the extension version number MUST be * incremented. */ // Hotwording state. var stateManager = new hotword.StateManager(); var pageAudioManager = new hotword.PageAudioManager(stateManager); var alwaysOnManager = new hotword.AlwaysOnManager(stateManager); var launcherManager = new hotword.LauncherManager(stateManager); var trainingManager = new hotword.TrainingManager(stateManager); // Detect when hotword settings have changed. chrome.hotwordPrivate.onEnabledChanged.addListener(function() { stateManager.updateStatus(); }); // Detect a request to delete the speaker model. chrome.hotwordPrivate.onDeleteSpeakerModel.addListener(function() { hotword.TrainingManager.handleDeleteSpeakerModel(); }); // Detect a request for the speaker model existence. chrome.hotwordPrivate.onSpeakerModelExists.addListener(function() { hotword.TrainingManager.handleSpeakerModelExists(); }); // Detect when the shared module containing the NaCL module and language model // is installed. chrome.management.onInstalled.addListener(function(info) { if (info.id == hotword.constants.SHARED_MODULE_ID) { hotword.debug('Shared module installed, reloading extension.'); chrome.runtime.reload(); } }); }()); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. cr.define('hotword.metrics', function() { 'use strict'; /** * Helper function to record enum values in UMA. * @param {!string} name * @param {!number} value * @param {!number} maxValue */ function recordEnum(name, value, maxValue) { var metricDesc = { 'metricName': name, 'type': 'histogram-linear', 'min': 1, 'max': maxValue, 'buckets': maxValue + 1 }; chrome.metricsPrivate.recordValue(metricDesc, value); } return { recordEnum: recordEnum }; }); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. cr.define('hotword', function() { 'use strict'; /** * Class used to manage the state of the NaCl recognizer plugin. Handles all * control of the NaCl plugin, including creation, start, stop, trigger, and * shutdown. * * @param {boolean} loggingEnabled Whether audio logging is enabled. * @param {boolean} hotwordStream Whether the audio input stream is from a * hotword stream. * @constructor * @extends {cr.EventTarget} */ function NaClManager(loggingEnabled, hotwordStream) { /** * Current state of this manager. * @private {hotword.NaClManager.ManagerState_} */ this.recognizerState_ = ManagerState_.UNINITIALIZED; /** * The window.timeout ID associated with a pending message. * @private {?number} */ this.naclTimeoutId_ = null; /** * The expected message that will cancel the current timeout. * @private {?string} */ this.expectingMessage_ = null; /** * Whether the plugin will be started as soon as it stops. * @private {boolean} */ this.restartOnStop_ = false; /** * NaCl plugin element on extension background page. * @private {?HTMLEmbedElement} */ this.plugin_ = null; /** * URL containing hotword-model data file. * @private {string} */ this.modelUrl_ = ''; /** * Media stream containing an audio input track. * @private {?MediaStream} */ this.stream_ = null; /** * The mode to start the recognizer in. * @private {?chrome.hotwordPrivate.RecognizerStartMode} */ this.startMode_ = hotword.constants.RecognizerStartMode.NORMAL; /** * Whether audio logging is enabled. * @private {boolean} */ this.loggingEnabled_ = loggingEnabled; /** * Whether the audio input stream is from a hotword stream. * @private {boolean} */ this.hotwordStream_ = hotwordStream; /** * Audio log of X seconds before hotword triggered. * @private {?Object} */ this.preambleLog_ = null; }; /** * States this manager can be in. Since messages to/from the plugin are * asynchronous (and potentially queued), it's not possible to know what state * the plugin is in. However, track a state machine for NaClManager based on * what messages are sent/received. * @enum {number} * @private */ NaClManager.ManagerState_ = { UNINITIALIZED: 0, LOADING: 1, STOPPING: 2, STOPPED: 3, STARTING: 4, RUNNING: 5, ERROR: 6, SHUTDOWN: 7, }; var ManagerState_ = NaClManager.ManagerState_; var Error_ = hotword.constants.Error; var UmaNaClMessageTimeout_ = hotword.constants.UmaNaClMessageTimeout; var UmaNaClPluginLoadResult_ = hotword.constants.UmaNaClPluginLoadResult; NaClManager.prototype.__proto__ = cr.EventTarget.prototype; /** * Called when an error occurs. Dispatches an event. * @param {!hotword.constants.Error} error * @private */ NaClManager.prototype.handleError_ = function(error) { var event = new Event(hotword.constants.Event.ERROR); event.data = error; this.dispatchEvent(event); }; /** * Record the result of loading the NaCl plugin to UMA. * @param {!hotword.constants.UmaNaClPluginLoadResult} error * @private */ NaClManager.prototype.logPluginLoadResult_ = function(error) { hotword.metrics.recordEnum( hotword.constants.UmaMetrics.NACL_PLUGIN_LOAD_RESULT, error, UmaNaClPluginLoadResult_.MAX); }; /** * Set a timeout. Only allow one timeout to exist at any given time. * @param {!function()} func * @param {number} timeout * @private */ NaClManager.prototype.setTimeout_ = function(func, timeout) { assert(!this.naclTimeoutId_, 'Timeout already exists'); this.naclTimeoutId_ = window.setTimeout( function() { this.naclTimeoutId_ = null; func(); }.bind(this), timeout); }; /** * Clears the current timeout. * @private */ NaClManager.prototype.clearTimeout_ = function() { window.clearTimeout(this.naclTimeoutId_); this.naclTimeoutId_ = null; }; /** * Starts a stopped or stopping hotword recognizer (NaCl plugin). * @param {hotword.constants.RecognizerStartMode} mode The mode to start the * recognizer in. */ NaClManager.prototype.startRecognizer = function(mode) { this.startMode_ = mode; if (this.recognizerState_ == ManagerState_.STOPPED) { this.preambleLog_ = null; this.recognizerState_ = ManagerState_.STARTING; if (mode == hotword.constants.RecognizerStartMode.NEW_MODEL) { hotword.debug('Starting Recognizer in START training mode'); this.sendDataToPlugin_(hotword.constants.NaClPlugin.BEGIN_SPEAKER_MODEL); } else if (mode == hotword.constants.RecognizerStartMode.ADAPT_MODEL) { hotword.debug('Starting Recognizer in ADAPT training mode'); this.sendDataToPlugin_(hotword.constants.NaClPlugin.ADAPT_SPEAKER_MODEL); } else { hotword.debug('Starting Recognizer in NORMAL mode'); this.sendDataToPlugin_(hotword.constants.NaClPlugin.RESTART); } // Normally, there would be a waitForMessage_(READY_FOR_AUDIO) here. // However, this message is sent the first time audio data is read and in // some cases (ie. using the hotword stream), this won't happen until a // potential hotword trigger is seen. Having a waitForMessage_() would time // out in this case, so just leave it out. This ends up sacrificing a bit of // error detection in the non-hotword-stream case, but I think we can live // with that. } else if (this.recognizerState_ == ManagerState_.STOPPING) { // Wait until the plugin is stopped before trying to start it. this.restartOnStop_ = true; } else { throw 'Attempting to start NaCl recogniser not in STOPPED or STOPPING ' + 'state'; } }; /** * Stops the hotword recognizer. */ NaClManager.prototype.stopRecognizer = function() { if (this.recognizerState_ == ManagerState_.STARTING) { // If the recognizer is stopped before it finishes starting, it causes an // assertion to be raised in waitForMessage_() since we're waiting for the // READY_FOR_AUDIO message. Clear the current timeout and expecting message // since we no longer expect it and may never receive it. this.clearTimeout_(); this.expectingMessage_ = null; } this.sendDataToPlugin_(hotword.constants.NaClPlugin.STOP); this.recognizerState_ = ManagerState_.STOPPING; this.waitForMessage_(hotword.constants.TimeoutMs.NORMAL, hotword.constants.NaClPlugin.STOPPED); }; /** * Saves the speaker model. */ NaClManager.prototype.finalizeSpeakerModel = function() { if (this.recognizerState_ == ManagerState_.UNINITIALIZED || this.recognizerState_ == ManagerState_.ERROR || this.recognizerState_ == ManagerState_.SHUTDOWN || this.recognizerState_ == ManagerState_.LOADING) { return; } this.sendDataToPlugin_(hotword.constants.NaClPlugin.FINISH_SPEAKER_MODEL); }; /** * Checks whether the file at the given path exists. * @param {!string} path Path to a file. Can be any valid URL. * @return {boolean} True if the patch exists. * @private */ NaClManager.prototype.fileExists_ = function(path) { var xhr = new XMLHttpRequest(); xhr.open('HEAD', path, false); try { xhr.send(); } catch (err) { return false; } if (xhr.readyState != xhr.DONE || xhr.status != 200) { return false; } return true; }; /** * Creates and returns a list of possible languages to check for hotword * support. * @return {!Array} Array of languages. * @private */ NaClManager.prototype.getPossibleLanguages_ = function() { // Create array used to search first for language-country, if not found then // search for language, if not found then no language (empty string). // For example, search for 'en-us', then 'en', then ''. var langs = new Array(); if (hotword.constants.UI_LANGUAGE) { // Chrome webstore doesn't support uppercase path: crbug.com/353407 var language = hotword.constants.UI_LANGUAGE.toLowerCase(); langs.push(language); // Example: 'en-us'. // Remove country to add just the language to array. var hyphen = language.lastIndexOf('-'); if (hyphen >= 0) { langs.push(language.substr(0, hyphen)); // Example: 'en'. } } langs.push(''); return langs; }; /** * Creates a NaCl plugin object and attaches it to the page. * @param {!string} src Location of the plugin. * @return {!HTMLEmbedElement} NaCl plugin DOM object. * @private */ NaClManager.prototype.createPlugin_ = function(src) { var plugin = /** @type {HTMLEmbedElement} */(document.createElement('embed')); plugin.src = src; plugin.type = 'application/x-nacl'; document.body.appendChild(plugin); return plugin; }; /** * Initializes the NaCl manager. * @param {!string} naclArch Either 'arm', 'x86-32' or 'x86-64'. * @param {!MediaStream} stream A stream containing an audio source track. * @return {boolean} True if the successful. */ NaClManager.prototype.initialize = function(naclArch, stream) { assert(this.recognizerState_ == ManagerState_.UNINITIALIZED, 'Recognizer not in uninitialized state. State: ' + this.recognizerState_); assert(this.plugin_ == null); var langs = this.getPossibleLanguages_(); var i, j; // For country-lang variations. For example, when combined with path it will // attempt to find: '/x86-32_en-gb/', else '/x86-32_en/', else '/x86-32_/'. for (i = 0; i < langs.length; i++) { var folder = hotword.constants.SHARED_MODULE_ROOT + '/_platform_specific/' + naclArch + '_' + langs[i] + '/'; var dataSrc = folder + hotword.constants.File.RECOGNIZER_CONFIG; var pluginSrc = hotword.constants.SHARED_MODULE_ROOT + '/hotword_' + langs[i] + '.nmf'; var dataExists = this.fileExists_(dataSrc) && this.fileExists_(pluginSrc); if (!dataExists) { continue; } var plugin = this.createPlugin_(pluginSrc); if (!plugin || !plugin.postMessage) { document.body.removeChild(plugin); this.recognizerState_ = ManagerState_.ERROR; return false; } this.plugin_ = plugin; this.modelUrl_ = chrome.extension.getURL(dataSrc); this.stream_ = stream; this.recognizerState_ = ManagerState_.LOADING; plugin.addEventListener('message', this.handlePluginMessage_.bind(this), false); plugin.addEventListener('crash', function() { this.handleError_(Error_.NACL_CRASH); this.logPluginLoadResult_( UmaNaClPluginLoadResult_.CRASH); }.bind(this), false); return true; } this.recognizerState_ = ManagerState_.ERROR; this.logPluginLoadResult_(UmaNaClPluginLoadResult_.NO_MODULE_FOUND); return false; }; /** * Shuts down the NaCl plugin and frees all resources. */ NaClManager.prototype.shutdown = function() { if (this.plugin_ != null) { document.body.removeChild(this.plugin_); this.plugin_ = null; } this.clearTimeout_(); this.recognizerState_ = ManagerState_.SHUTDOWN; if (this.stream_) this.stream_.getAudioTracks()[0].stop(); this.stream_ = null; }; /** * Sends data to the NaCl plugin. * @param {!string|!MediaStreamTrack} data Command to be sent to NaCl plugin. * @private */ NaClManager.prototype.sendDataToPlugin_ = function(data) { assert(this.recognizerState_ != ManagerState_.UNINITIALIZED, 'Recognizer in uninitialized state'); this.plugin_.postMessage(data); }; /** * Waits, with a timeout, for a message to be received from the plugin. If the * message is not seen within the timeout, dispatch an 'error' event and go into * the ERROR state. * @param {number} timeout Timeout, in milliseconds, to wait for the message. * @param {!string} message Message to wait for. * @private */ NaClManager.prototype.waitForMessage_ = function(timeout, message) { assert(this.expectingMessage_ == null, 'Cannot wait for message: ' + message + ', already waiting for message ' + this.expectingMessage_); this.setTimeout_( function() { this.recognizerState_ = ManagerState_.ERROR; this.handleError_(Error_.TIMEOUT); switch (this.expectingMessage_) { case hotword.constants.NaClPlugin.REQUEST_MODEL: var metricValue = UmaNaClMessageTimeout_.REQUEST_MODEL; break; case hotword.constants.NaClPlugin.MODEL_LOADED: var metricValue = UmaNaClMessageTimeout_.MODEL_LOADED; break; case hotword.constants.NaClPlugin.READY_FOR_AUDIO: var metricValue = UmaNaClMessageTimeout_.READY_FOR_AUDIO; break; case hotword.constants.NaClPlugin.STOPPED: var metricValue = UmaNaClMessageTimeout_.STOPPED; break; case hotword.constants.NaClPlugin.HOTWORD_DETECTED: var metricValue = UmaNaClMessageTimeout_.HOTWORD_DETECTED; break; case hotword.constants.NaClPlugin.MS_CONFIGURED: var metricValue = UmaNaClMessageTimeout_.MS_CONFIGURED; break; } hotword.metrics.recordEnum( hotword.constants.UmaMetrics.NACL_MESSAGE_TIMEOUT, metricValue, UmaNaClMessageTimeout_.MAX); }.bind(this), timeout); this.expectingMessage_ = message; }; /** * Called when a message is received from the plugin. If we're waiting for that * message, cancel the pending timeout. * @param {string} message Message received. * @private */ NaClManager.prototype.receivedMessage_ = function(message) { if (message == this.expectingMessage_) { this.clearTimeout_(); this.expectingMessage_ = null; } }; /** * Handle a REQUEST_MODEL message from the plugin. * The plugin sends this message immediately after starting. * @private */ NaClManager.prototype.handleRequestModel_ = function() { if (this.recognizerState_ != ManagerState_.LOADING) { return; } this.logPluginLoadResult_(UmaNaClPluginLoadResult_.SUCCESS); this.sendDataToPlugin_( hotword.constants.NaClPlugin.MODEL_PREFIX + this.modelUrl_); this.waitForMessage_(hotword.constants.TimeoutMs.LONG, hotword.constants.NaClPlugin.MODEL_LOADED); // Configure logging in the plugin. This can be configured any time before // starting the recognizer, and now is as good a time as any. if (this.loggingEnabled_) { this.sendDataToPlugin_( hotword.constants.NaClPlugin.LOG + ':' + hotword.constants.AUDIO_LOG_SECONDS); } // If the audio stream is from a hotword stream, tell the plugin. if (this.hotwordStream_) { this.sendDataToPlugin_( hotword.constants.NaClPlugin.DSP + ':' + hotword.constants.HOTWORD_STREAM_TIMEOUT_SECONDS); } }; /** * Handle a MODEL_LOADED message from the plugin. * The plugin sends this message after successfully loading the language model. * @private */ NaClManager.prototype.handleModelLoaded_ = function() { if (this.recognizerState_ != ManagerState_.LOADING) { return; } this.sendDataToPlugin_(this.stream_.getAudioTracks()[0]); this.waitForMessage_(hotword.constants.TimeoutMs.LONG, hotword.constants.NaClPlugin.MS_CONFIGURED); }; /** * Handle a MS_CONFIGURED message from the plugin. * The plugin sends this message after successfully configuring the audio input * stream. * @private */ NaClManager.prototype.handleMsConfigured_ = function() { if (this.recognizerState_ != ManagerState_.LOADING) { return; } this.recognizerState_ = ManagerState_.STOPPED; this.dispatchEvent(new Event(hotword.constants.Event.READY)); }; /** * Handle a READY_FOR_AUDIO message from the plugin. * The plugin sends this message after the recognizer is started and * successfully receives and processes audio data. * @private */ NaClManager.prototype.handleReadyForAudio_ = function() { if (this.recognizerState_ != ManagerState_.STARTING) { return; } this.recognizerState_ = ManagerState_.RUNNING; }; /** * Handle a HOTWORD_DETECTED message from the plugin. * The plugin sends this message after detecting the hotword. * @private */ NaClManager.prototype.handleHotwordDetected_ = function() { if (this.recognizerState_ != ManagerState_.RUNNING) { return; } // We'll receive a STOPPED message very soon. this.recognizerState_ = ManagerState_.STOPPING; this.waitForMessage_(hotword.constants.TimeoutMs.NORMAL, hotword.constants.NaClPlugin.STOPPED); var event = new Event(hotword.constants.Event.TRIGGER); event.log = this.preambleLog_; this.dispatchEvent(event); }; /** * Handle a STOPPED message from the plugin. * This plugin sends this message after stopping the recognizer. This can happen * either in response to a stop request, or after the hotword is detected. * @private */ NaClManager.prototype.handleStopped_ = function() { this.recognizerState_ = ManagerState_.STOPPED; if (this.restartOnStop_) { this.restartOnStop_ = false; this.startRecognizer(this.startMode_); } }; /** * Handle a TIMEOUT message from the plugin. * The plugin sends this message when it thinks the stream is from a DSP and * a hotword wasn't detected within a timeout period after arrival of the first * audio samples. * @private */ NaClManager.prototype.handleTimeout_ = function() { if (this.recognizerState_ != ManagerState_.RUNNING) { return; } this.recognizerState_ = ManagerState_.STOPPED; this.dispatchEvent(new Event(hotword.constants.Event.TIMEOUT)); }; /** * Handle a SPEAKER_MODEL_SAVED message from the plugin. * The plugin sends this message after writing the model to a file. * @private */ NaClManager.prototype.handleSpeakerModelSaved_ = function() { this.dispatchEvent(new Event(hotword.constants.Event.SPEAKER_MODEL_SAVED)); }; /** * Handles a message from the NaCl plugin. * @param {!Event} msg Message from NaCl plugin. * @private */ NaClManager.prototype.handlePluginMessage_ = function(msg) { if (msg['data']) { if (typeof(msg['data']) == 'object') { // Save the preamble for delivery to the trigger handler when the trigger // message arrives. this.preambleLog_ = msg['data']; return; } this.receivedMessage_(msg['data']); switch (msg['data']) { case hotword.constants.NaClPlugin.REQUEST_MODEL: this.handleRequestModel_(); break; case hotword.constants.NaClPlugin.MODEL_LOADED: this.handleModelLoaded_(); break; case hotword.constants.NaClPlugin.MS_CONFIGURED: this.handleMsConfigured_(); break; case hotword.constants.NaClPlugin.READY_FOR_AUDIO: this.handleReadyForAudio_(); break; case hotword.constants.NaClPlugin.HOTWORD_DETECTED: this.handleHotwordDetected_(); break; case hotword.constants.NaClPlugin.STOPPED: this.handleStopped_(); break; case hotword.constants.NaClPlugin.TIMEOUT: this.handleTimeout_(); break; case hotword.constants.NaClPlugin.SPEAKER_MODEL_SAVED: this.handleSpeakerModelSaved_(); break; } } }; return { NaClManager: NaClManager }; }); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. cr.define('hotword', function() { 'use strict'; /** * Class used to manage the interaction between hotwording and the * NTP/google.com. Injects a content script to interact with NTP/google.com * and updates the global hotwording state based on interaction with those * pages. * @param {!hotword.StateManager} stateManager * @constructor */ function PageAudioManager(stateManager) { /** * Manager of global hotwording state. * @private {!hotword.StateManager} */ this.stateManager_ = stateManager; /** * Mapping between tab ID and port that is connected from the injected * content script. * @private {!Object} */ this.portMap_ = {}; /** * Chrome event listeners. Saved so that they can be de-registered when * hotwording is disabled. */ this.connectListener_ = this.handleConnect_.bind(this); this.tabCreatedListener_ = this.handleCreatedTab_.bind(this); this.tabUpdatedListener_ = this.handleUpdatedTab_.bind(this); this.tabActivatedListener_ = this.handleActivatedTab_.bind(this); this.microphoneStateChangedListener_ = this.handleMicrophoneStateChanged_.bind(this); this.windowFocusChangedListener_ = this.handleChangedWindow_.bind(this); this.messageListener_ = this.handleMessageFromPage_.bind(this); // Need to setup listeners on startup, otherwise events that caused the // event page to start up, will be lost. this.setupListeners_(); this.stateManager_.onStatusChanged.addListener(function() { this.updateListeners_(); this.updateTabState_(); }.bind(this)); }; var CommandToPage = hotword.constants.CommandToPage; var CommandFromPage = hotword.constants.CommandFromPage; PageAudioManager.prototype = { /** * Helper function to test if a URL path is eligible for hotwording. * @param {!string} url URL to check. * @param {!string} base Base URL to compare against.. * @return {boolean} True if url is an eligible hotword URL. * @private */ checkUrlPathIsEligible_: function(url, base) { if (url == base || url == base + '/' || url.indexOf(base + '/_/chrome/newtab?') == 0 || // Appcache NTP. url.indexOf(base + '/?') == 0 || url.indexOf(base + '/#') == 0 || url.indexOf(base + '/webhp') == 0 || url.indexOf(base + '/search') == 0 || url.indexOf(base + '/imghp') == 0) { return true; } return false; }, /** * Determines if a URL is eligible for hotwording. For now, the valid pages * are the Google HP and SERP (this will include the NTP). * @param {!string} url URL to check. * @return {boolean} True if url is an eligible hotword URL. * @private */ isEligibleUrl_: function(url) { if (!url) return false; var baseGoogleUrls = [ 'https://encrypted.google.', 'https://images.google.', 'https://www.google.' ]; // TODO(amistry): Get this list from a file in the shared module instead. var tlds = [ 'at', 'ca', 'com', 'com.au', 'com.mx', 'com.br', 'co.jp', 'co.kr', 'co.nz', 'co.uk', 'co.za', 'de', 'es', 'fr', 'it', 'ru' ]; // Check for the new tab page first. if (this.checkUrlPathIsEligible_(url, 'chrome://newtab')) return true; // Check URLs with each type of local-based TLD. for (var i = 0; i < baseGoogleUrls.length; i++) { for (var j = 0; j < tlds.length; j++) { var base = baseGoogleUrls[i] + tlds[j]; if (this.checkUrlPathIsEligible_(url, base)) return true; } } return false; }, /** * Locates the current active tab in the current focused window and * performs a callback with the tab as the parameter. * @param {function(?Tab)} callback Function to call with the * active tab or null if not found. The function's |this| will be set to * this object. * @private */ findCurrentTab_: function(callback) { chrome.windows.getAll( {'populate': true}, function(windows) { for (var i = 0; i < windows.length; ++i) { if (!windows[i].focused) continue; for (var j = 0; j < windows[i].tabs.length; ++j) { var tab = windows[i].tabs[j]; if (tab.active) { callback.call(this, tab); return; } } } callback.call(this, null); }.bind(this)); }, /** * This function is called when a tab is activated (comes into focus). * @param {Tab} tab Current active tab. * @private */ activateTab_: function(tab) { if (!tab) { this.stopHotwording_(); return; } if (tab.id in this.portMap_) { this.startHotwordingIfEligible_(); return; } this.stopHotwording_(); this.prepareTab_(tab); }, /** * Prepare a new or updated tab by injecting the content script. * @param {!Tab} tab Newly updated or created tab. * @private */ prepareTab_: function(tab) { if (!this.isEligibleUrl_(tab.url)) return; chrome.tabs.executeScript( tab.id, {'file': 'audio_client.js'}, function(results) { if (chrome.runtime.lastError) { // Ignore this error. For new tab pages, even though the URL is // reported to be chrome://newtab/, the actual URL is a // country-specific google domain. Since we don't have permission // to inject on every page, an error will happen when the user is // in an unsupported country. // // The property still needs to be accessed so that the error // condition is cleared. If it isn't, exectureScript will log an // error the next time it is called. } }); }, /** * Updates hotwording state based on the state of current tabs/windows. * @private */ updateTabState_: function() { this.findCurrentTab_(this.activateTab_); }, /** * Handles a newly created tab. * @param {!Tab} tab Newly created tab. * @private */ handleCreatedTab_: function(tab) { this.prepareTab_(tab); }, /** * Handles an updated tab. * @param {number} tabId Id of the updated tab. * @param {{status: string}} info Change info of the tab. * @param {!Tab} tab Updated tab. * @private */ handleUpdatedTab_: function(tabId, info, tab) { // Chrome fires multiple update events: undefined, loading and completed. // We perform content injection on loading state. if (info['status'] != 'loading') return; this.prepareTab_(tab); }, /** * Handles a tab that has just become active. * @param {{tabId: number}} info Information about the activated tab. * @private */ handleActivatedTab_: function(info) { this.updateTabState_(); }, /** * Handles the microphone state changing. * @param {boolean} enabled Whether the microphone is now enabled. * @private */ handleMicrophoneStateChanged_: function(enabled) { if (enabled) { this.updateTabState_(); return; } this.stopHotwording_(); }, /** * Handles a change in Chrome windows. * Note: this does not always trigger in Linux. * @param {number} windowId Id of newly focused window. * @private */ handleChangedWindow_: function(windowId) { this.updateTabState_(); }, /** * Handles a content script attempting to connect. * @param {!Port} port Communications port from the client. * @private */ handleConnect_: function(port) { if (port.name != hotword.constants.CLIENT_PORT_NAME) return; var tab = /** @type {!Tab} */(port.sender.tab); // An existing port from the same tab might already exist. But that port // may be from the previous page, so just overwrite the port. this.portMap_[tab.id] = port; port.onDisconnect.addListener(function() { this.handleClientDisconnect_(port); }.bind(this)); port.onMessage.addListener(function(msg) { this.handleMessage_(msg, port.sender, port.postMessage); }.bind(this)); }, /** * Handles a client content script disconnect. * @param {Port} port Disconnected port. * @private */ handleClientDisconnect_: function(port) { var tabId = port.sender.tab.id; if (tabId in this.portMap_ && this.portMap_[tabId] == port) { // Due to a race between port disconnection and tabs.onUpdated messages, // the port could have changed. delete this.portMap_[port.sender.tab.id]; } this.stopHotwordingIfIneligibleTab_(); }, /** * Disconnect all connected clients. * @private */ disconnectAllClients_: function() { for (var id in this.portMap_) { var port = this.portMap_[id]; port.disconnect(); delete this.portMap_[id]; } }, /** * Sends a command to the client content script on an eligible tab. * @param {hotword.constants.CommandToPage} command Command to send. * @param {number} tabId Id of the target tab. * @private */ sendClient_: function(command, tabId) { if (tabId in this.portMap_) { var message = {}; message[hotword.constants.COMMAND_FIELD_NAME] = command; this.portMap_[tabId].postMessage(message); } }, /** * Sends a command to all connected clients. * @param {hotword.constants.CommandToPage} command Command to send. * @private */ sendAllClients_: function(command) { for (var idStr in this.portMap_) { var id = parseInt(idStr, 10); assert(!isNaN(id), 'Tab ID is not a number: ' + idStr); this.sendClient_(command, id); } }, /** * Handles a hotword trigger. Sends a trigger message to the currently * active tab. * @private */ hotwordTriggered_: function() { this.findCurrentTab_(function(tab) { if (tab) this.sendClient_(CommandToPage.HOTWORD_VOICE_TRIGGER, tab.id); }); }, /** * Starts hotwording. * @private */ startHotwording_: function() { this.stateManager_.startSession( hotword.constants.SessionSource.NTP, function() { this.sendAllClients_(CommandToPage.HOTWORD_STARTED); }.bind(this), this.hotwordTriggered_.bind(this)); }, /** * Starts hotwording if the currently active tab is eligible for hotwording * (e.g. google.com). * @private */ startHotwordingIfEligible_: function() { this.findCurrentTab_(function(tab) { if (!tab) { this.stopHotwording_(); return; } if (this.isEligibleUrl_(tab.url)) this.startHotwording_(); }); }, /** * Stops hotwording. * @private */ stopHotwording_: function() { this.stateManager_.stopSession(hotword.constants.SessionSource.NTP); this.sendAllClients_(CommandToPage.HOTWORD_ENDED); }, /** * Stops hotwording if the currently active tab is not eligible for * hotwording (i.e. google.com). * @private */ stopHotwordingIfIneligibleTab_: function() { this.findCurrentTab_(function(tab) { if (!tab) { this.stopHotwording_(); return; } if (!this.isEligibleUrl_(tab.url)) this.stopHotwording_(); }); }, /** * Handles a message from the content script injected into the page. * @param {!Object} request Request from the content script. * @param {!MessageSender} sender Message sender. * @param {!function(Object)} sendResponse Function for sending a response. * @private */ handleMessage_: function(request, sender, sendResponse) { switch (request[hotword.constants.COMMAND_FIELD_NAME]) { // TODO(amistry): Handle other messages such as CLICKED_RESUME and // CLICKED_RESTART, if necessary. case CommandFromPage.SPEECH_START: this.stopHotwording_(); break; case CommandFromPage.SPEECH_END: case CommandFromPage.SPEECH_RESET: this.startHotwording_(); break; } }, /** * Handles a message directly from the NTP/HP/SERP. * @param {!Object} request Message from the sender. * @param {!MessageSender} sender Information about the sender. * @param {!function(HotwordStatus)} sendResponse Callback to respond * to sender. * @return {boolean} Whether to maintain the port open to call sendResponse. * @private */ handleMessageFromPage_: function(request, sender, sendResponse) { switch (request.type) { case CommandFromPage.PAGE_WAKEUP: if (sender.tab && this.isEligibleUrl_(sender.tab.url)) { chrome.hotwordPrivate.getStatus( true /* getOptionalFields */, this.statusDone_.bind( this, request.tab || sender.tab || {incognito: true}, sendResponse)); return true; } // Do not show the opt-in promo for ineligible urls. this.sendResponse_({'doNotShowOptinMessage': true}, sendResponse); break; case CommandFromPage.CLICKED_OPTIN: chrome.hotwordPrivate.setEnabled(true); break; // User has explicitly clicked 'no thanks'. case CommandFromPage.CLICKED_NO_OPTIN: chrome.hotwordPrivate.setEnabled(false); break; } return false; }, /** * Sends a message directly to the sending page. * @param {!HotwordStatus} response The response to send to the sender. * @param {!function(HotwordStatus)} sendResponse Callback to respond * to sender. * @private */ sendResponse_: function(response, sendResponse) { try { sendResponse(response); } catch (err) { // Suppress the exception thrown by sendResponse() when the page doesn't // specify a response callback in the call to // chrome.runtime.sendMessage(). // Unfortunately, there doesn't appear to be a way to detect one-way // messages without explicitly saying in the message itself. This // message is defined as a constant in // extensions/renderer/messaging_bindings.cc if (err.message == 'Attempting to use a disconnected port object') return; throw err; } }, /** * Sends the response to the tab. * @param {Tab} tab The tab that the request was sent from. * @param {function(HotwordStatus)} sendResponse Callback function to * respond to sender. * @param {HotwordStatus} hotwordStatus Status of the hotword extension. * @private */ statusDone_: function(tab, sendResponse, hotwordStatus) { var response = {'doNotShowOptinMessage': true}; // If always-on is available, then we do not show the promo, as the promo // only works with the sometimes-on pref. if (!tab.incognito && hotwordStatus.available && !hotwordStatus.enabledSet && !hotwordStatus.alwaysOnAvailable) { response = hotwordStatus; } this.sendResponse_(response, sendResponse); }, /** * Set up event listeners. * @private */ setupListeners_: function() { if (chrome.runtime.onConnect.hasListener(this.connectListener_)) return; chrome.runtime.onConnect.addListener(this.connectListener_); chrome.tabs.onCreated.addListener(this.tabCreatedListener_); chrome.tabs.onUpdated.addListener(this.tabUpdatedListener_); chrome.tabs.onActivated.addListener(this.tabActivatedListener_); chrome.windows.onFocusChanged.addListener( this.windowFocusChangedListener_); chrome.hotwordPrivate.onMicrophoneStateChanged.addListener( this.microphoneStateChangedListener_); if (chrome.runtime.onMessage.hasListener(this.messageListener_)) return; chrome.runtime.onMessageExternal.addListener( this.messageListener_); }, /** * Remove event listeners. * @private */ removeListeners_: function() { chrome.runtime.onConnect.removeListener(this.connectListener_); chrome.tabs.onCreated.removeListener(this.tabCreatedListener_); chrome.tabs.onUpdated.removeListener(this.tabUpdatedListener_); chrome.tabs.onActivated.removeListener(this.tabActivatedListener_); chrome.windows.onFocusChanged.removeListener( this.windowFocusChangedListener_); chrome.hotwordPrivate.onMicrophoneStateChanged.removeListener( this.microphoneStateChangedListener_); // Don't remove the Message listener, as we want them listening all // the time, }, /** * Update event listeners based on the current hotwording state. * @private */ updateListeners_: function() { if (this.stateManager_.isSometimesOnEnabled()) { this.setupListeners_(); } else { this.removeListeners_(); this.stopHotwording_(); this.disconnectAllClients_(); } } }; return { PageAudioManager: PageAudioManager }; }); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. cr.define('hotword', function() { 'use strict'; /** * Trivial container class for session information. * @param {!hotword.constants.SessionSource} source Source of the hotword * session. * @param {!function()} triggerCb Callback invoked when the hotword has * triggered. * @param {!function()} startedCb Callback invoked when the session has * been started successfully. * @param {function()=} opt_modelSavedCb Callback invoked when the speaker * model has been saved successfully. * @constructor * @struct * @private */ function Session_(source, triggerCb, startedCb, opt_modelSavedCb) { /** * Source of the hotword session request. * @private {!hotword.constants.SessionSource} */ this.source_ = source; /** * Callback invoked when the hotword has triggered. * @private {!function()} */ this.triggerCb_ = triggerCb; /** * Callback invoked when the session has been started successfully. * @private {?function()} */ this.startedCb_ = startedCb; /** * Callback invoked when the session has been started successfully. * @private {?function()} */ this.speakerModelSavedCb_ = opt_modelSavedCb; } /** * Class to manage hotwording state. Starts/stops the hotword detector based * on user settings, session requests, and any other factors that play into * whether or not hotwording should be running. * @constructor */ function StateManager() { /** * Current state. * @private {hotword.StateManager.State_} */ this.state_ = State_.STOPPED; /** * Current hotwording status. * @private {?chrome.hotwordPrivate.StatusDetails} */ this.hotwordStatus_ = null; /** * NaCl plugin manager. * @private {?hotword.NaClManager} */ this.pluginManager_ = null; /** * Currently active hotwording sessions. * @private {!Array} */ this.sessions_ = []; /** * The mode to start the recognizer in. * @private {!hotword.constants.RecognizerStartMode} */ this.startMode_ = hotword.constants.RecognizerStartMode.NORMAL; /** * Event that fires when the hotwording status has changed. * @type {!ChromeEvent} */ this.onStatusChanged = new chrome.Event(); /** * Hotword trigger audio notification... a.k.a The Chime (tm). * @private {!HTMLAudioElement} */ this.chime_ = /** @type {!HTMLAudioElement} */(document.createElement('audio')); /** * Chrome event listeners. Saved so that they can be de-registered when * hotwording is disabled. * @private */ this.idleStateChangedListener_ = this.handleIdleStateChanged_.bind(this); this.startupListener_ = this.handleStartup_.bind(this); /** * Whether this user is locked. * @private {boolean} */ this.isLocked_ = false; /** * Current state of audio logging. * This is tracked separately from hotwordStatus_ because we need to restart * the hotword detector when this value changes. * @private {boolean} */ this.loggingEnabled_ = false; /** * Current state of training. * This is tracked separately from |hotwordStatus_| because we need to * restart the hotword detector when this value changes. * @private {!boolean} */ this.trainingEnabled_ = false; /** * Helper class to keep this extension alive while the hotword detector is * running in always-on mode. * @private {!hotword.KeepAlive} */ this.keepAlive_ = new hotword.KeepAlive(); // Get the initial status. chrome.hotwordPrivate.getStatus(this.handleStatus_.bind(this)); // Setup the chime and insert into the page. // Set preload=none to prevent an audio output stream from being created // when the extension loads. this.chime_.preload = 'none'; this.chime_.src = chrome.extension.getURL( hotword.constants.SHARED_MODULE_ROOT + '/audio/chime.wav'); document.body.appendChild(this.chime_); // In order to remove this listener, it must first be added. This handles // the case on first Chrome startup where this event is never registered, // so can't be removed when it's determined that hotwording is disabled. // Why not only remove the listener if it exists? Extension API events have // two parts to them, the Javascript listeners, and a browser-side component // that wakes up the extension if it's an event page. The browser-side // wake-up event is only removed when the number of javascript listeners // becomes 0. To clear the browser wake-up event, a listener first needs to // be added, then removed in order to drop the count to 0 and remove the // event. chrome.runtime.onStartup.addListener(this.startupListener_); } /** * @enum {number} * @private */ StateManager.State_ = { STOPPED: 0, STARTING: 1, RUNNING: 2, ERROR: 3, }; var State_ = StateManager.State_; var UmaMediaStreamOpenResults_ = { // These first error are defined by the MediaStream spec: // http://w3c.github.io/mediacapture-main/getusermedia.html#idl-def-MediaStreamError 'NotSupportedError': hotword.constants.UmaMediaStreamOpenResult.NOT_SUPPORTED, 'PermissionDeniedError': hotword.constants.UmaMediaStreamOpenResult.PERMISSION_DENIED, 'ConstraintNotSatisfiedError': hotword.constants.UmaMediaStreamOpenResult.CONSTRAINT_NOT_SATISFIED, 'OverconstrainedError': hotword.constants.UmaMediaStreamOpenResult.OVERCONSTRAINED, 'NotFoundError': hotword.constants.UmaMediaStreamOpenResult.NOT_FOUND, 'AbortError': hotword.constants.UmaMediaStreamOpenResult.ABORT, 'SourceUnavailableError': hotword.constants.UmaMediaStreamOpenResult.SOURCE_UNAVAILABLE, // The next few errors are chrome-specific. See: // content/renderer/media/user_media_client_impl.cc // (UserMediaClientImpl::GetUserMediaRequestFailed) 'PermissionDismissedError': hotword.constants.UmaMediaStreamOpenResult.PERMISSION_DISMISSED, 'InvalidStateError': hotword.constants.UmaMediaStreamOpenResult.INVALID_STATE, 'DevicesNotFoundError': hotword.constants.UmaMediaStreamOpenResult.DEVICES_NOT_FOUND, 'InvalidSecurityOriginError': hotword.constants.UmaMediaStreamOpenResult.INVALID_SECURITY_ORIGIN }; var UmaTriggerSources_ = { 'launcher': hotword.constants.UmaTriggerSource.LAUNCHER, 'ntp': hotword.constants.UmaTriggerSource.NTP_GOOGLE_COM, 'always': hotword.constants.UmaTriggerSource.ALWAYS_ON, 'training': hotword.constants.UmaTriggerSource.TRAINING }; StateManager.prototype = { /** * Request status details update. Intended to be called from the * hotwordPrivate.onEnabledChanged() event. */ updateStatus: function() { chrome.hotwordPrivate.getStatus(this.handleStatus_.bind(this)); }, /** * @return {boolean} True if google.com/NTP/launcher hotwording is enabled. */ isSometimesOnEnabled: function() { assert(this.hotwordStatus_, 'No hotwording status (isSometimesOnEnabled)'); // Although the two settings are supposed to be mutually exclusive, it's // possible for both to be set. In that case, always-on takes precedence. return this.hotwordStatus_.enabled && !this.hotwordStatus_.alwaysOnEnabled; }, /** * @return {boolean} True if always-on hotwording is enabled. */ isAlwaysOnEnabled: function() { assert(this.hotwordStatus_, 'No hotword status (isAlwaysOnEnabled)'); return this.hotwordStatus_.alwaysOnEnabled && !this.hotwordStatus_.trainingEnabled; }, /** * @return {boolean} True if training is enabled. */ isTrainingEnabled: function() { assert(this.hotwordStatus_, 'No hotword status (isTrainingEnabled)'); return this.hotwordStatus_.trainingEnabled; }, /** * Callback for hotwordPrivate.getStatus() function. * @param {chrome.hotwordPrivate.StatusDetails} status Current hotword * status. * @private */ handleStatus_: function(status) { hotword.debug('New hotword status', status); this.hotwordStatus_ = status; this.updateStateFromStatus_(); this.onStatusChanged.dispatch(); }, /** * Updates state based on the current status. * @private */ updateStateFromStatus_: function() { if (!this.hotwordStatus_) return; if (this.hotwordStatus_.enabled || this.hotwordStatus_.alwaysOnEnabled || this.hotwordStatus_.trainingEnabled) { // Detect changes to audio logging and kill the detector if that setting // has changed. if (this.hotwordStatus_.audioLoggingEnabled != this.loggingEnabled_) this.shutdownDetector_(); this.loggingEnabled_ = this.hotwordStatus_.audioLoggingEnabled; // If the training state has changed, we need to first shut down the // detector so that we can restart in a different mode. if (this.hotwordStatus_.trainingEnabled != this.trainingEnabled_) this.shutdownDetector_(); this.trainingEnabled_ = this.hotwordStatus_.trainingEnabled; // Start the detector if there's a session and the user is unlocked, and // stops it otherwise. if (this.sessions_.length && !this.isLocked_ && this.hotwordStatus_.userIsActive) { this.startDetector_(); } else { this.shutdownDetector_(); } if (!chrome.idle.onStateChanged.hasListener( this.idleStateChangedListener_)) { chrome.idle.onStateChanged.addListener( this.idleStateChangedListener_); } if (!chrome.runtime.onStartup.hasListener(this.startupListener_)) chrome.runtime.onStartup.addListener(this.startupListener_); } else { // Not enabled. Shut down if running. this.shutdownDetector_(); chrome.idle.onStateChanged.removeListener( this.idleStateChangedListener_); // If hotwording isn't enabled, don't start this component extension on // Chrome startup. If a user enables hotwording, the status change // event will be fired and the onStartup event will be registered. chrome.runtime.onStartup.removeListener(this.startupListener_); } }, /** * Starts the hotword detector. * @private */ startDetector_: function() { // Last attempt to start detector resulted in an error. if (this.state_ == State_.ERROR) { // TODO(amistry): Do some error rate tracking here and disable the // extension if we error too often. } if (!this.pluginManager_) { this.state_ = State_.STARTING; var isHotwordStream = this.isAlwaysOnEnabled() && this.hotwordStatus_.hotwordHardwareAvailable; this.pluginManager_ = new hotword.NaClManager(this.loggingEnabled_, isHotwordStream); this.pluginManager_.addEventListener(hotword.constants.Event.READY, this.onReady_.bind(this)); this.pluginManager_.addEventListener(hotword.constants.Event.ERROR, this.onError_.bind(this)); this.pluginManager_.addEventListener(hotword.constants.Event.TRIGGER, this.onTrigger_.bind(this)); this.pluginManager_.addEventListener(hotword.constants.Event.TIMEOUT, this.onTimeout_.bind(this)); this.pluginManager_.addEventListener( hotword.constants.Event.SPEAKER_MODEL_SAVED, this.onSpeakerModelSaved_.bind(this)); chrome.runtime.getPlatformInfo(function(platform) { var naclArch = platform.nacl_arch; // googDucking set to false so that audio output level from other tabs // is not affected when hotword is enabled. https://crbug.com/357773 // content/common/media/media_stream_options.cc // When always-on is enabled, request the hotword stream. // Optional because we allow power users to bypass the hardware // detection via a flag, and hence the hotword stream may not be // available. var constraints = /** @type {googMediaStreamConstraints} */ ({audio: {optional: [ { googDucking: false }, { googHotword: this.isAlwaysOnEnabled() } ]}}); navigator.webkitGetUserMedia( /** @type {MediaStreamConstraints} */ (constraints), function(stream) { hotword.metrics.recordEnum( hotword.constants.UmaMetrics.MEDIA_STREAM_RESULT, hotword.constants.UmaMediaStreamOpenResult.SUCCESS, hotword.constants.UmaMediaStreamOpenResult.MAX); // The detector could have been shut down before the stream // finishes opening. if (this.pluginManager_ == null) { stream.getAudioTracks()[0].stop(); return; } if (this.isAlwaysOnEnabled()) this.keepAlive_.start(); if (!this.pluginManager_.initialize(naclArch, stream)) { this.state_ = State_.ERROR; this.shutdownPluginManager_(); } }.bind(this), function(error) { if (error.name in UmaMediaStreamOpenResults_) { var metricValue = UmaMediaStreamOpenResults_[error.name]; } else { var metricValue = hotword.constants.UmaMediaStreamOpenResult.UNKNOWN; } hotword.metrics.recordEnum( hotword.constants.UmaMetrics.MEDIA_STREAM_RESULT, metricValue, hotword.constants.UmaMediaStreamOpenResult.MAX); this.state_ = State_.ERROR; this.pluginManager_ = null; }.bind(this)); }.bind(this)); } else if (this.state_ != State_.STARTING) { // Don't try to start a starting detector. this.startRecognizer_(); } }, /** * Start the recognizer plugin. Assumes the plugin has been loaded and is * ready to start. * @private */ startRecognizer_: function() { assert(this.pluginManager_, 'No NaCl plugin loaded'); if (this.state_ != State_.RUNNING) { this.state_ = State_.RUNNING; if (this.isAlwaysOnEnabled()) this.keepAlive_.start(); this.pluginManager_.startRecognizer(this.startMode_); } for (var i = 0; i < this.sessions_.length; i++) { var session = this.sessions_[i]; if (session.startedCb_) { session.startedCb_(); session.startedCb_ = null; } } }, /** * Stops the hotword detector, if it's running. * @private */ stopDetector_: function() { this.keepAlive_.stop(); if (this.pluginManager_ && this.state_ == State_.RUNNING) { this.state_ = State_.STOPPED; this.pluginManager_.stopRecognizer(); } }, /** * Shuts down and removes the plugin manager, if it exists. * @private */ shutdownPluginManager_: function() { this.keepAlive_.stop(); if (this.pluginManager_) { this.pluginManager_.shutdown(); this.pluginManager_ = null; } }, /** * Shuts down the hotword detector. * @private */ shutdownDetector_: function() { this.state_ = State_.STOPPED; this.shutdownPluginManager_(); }, /** * Finalizes the speaker model. Assumes the plugin has been loaded and * started. */ finalizeSpeakerModel: function() { assert(this.pluginManager_, 'Cannot finalize speaker model: No NaCl plugin loaded'); if (this.state_ != State_.RUNNING) { hotword.debug('Cannot finalize speaker model: NaCl plugin not started'); return; } this.pluginManager_.finalizeSpeakerModel(); }, /** * Handle the hotword plugin being ready to start. * @private */ onReady_: function() { if (this.state_ != State_.STARTING) { // At this point, we should not be in the RUNNING state. Doing so would // imply the hotword detector was started without being ready. assert(this.state_ != State_.RUNNING, 'Unexpected RUNNING state'); this.shutdownPluginManager_(); return; } this.startRecognizer_(); }, /** * Handle an error from the hotword plugin. * @private */ onError_: function() { this.state_ = State_.ERROR; this.shutdownPluginManager_(); }, /** * Handle hotword triggering. * @param {!Event} event Event containing audio log data. * @private */ onTrigger_: function(event) { this.keepAlive_.stop(); hotword.debug('Hotword triggered!'); chrome.metricsPrivate.recordUserAction( hotword.constants.UmaMetrics.TRIGGER); assert(this.pluginManager_, 'No NaCl plugin loaded on trigger'); // Detector implicitly stops when the hotword is detected. this.state_ = State_.STOPPED; // Play the chime. this.chime_.play(); // Implicitly clear the top session. A session needs to be started in // order to restart the detector. if (this.sessions_.length) { var session = this.sessions_.pop(); session.triggerCb_(event.log); hotword.metrics.recordEnum( hotword.constants.UmaMetrics.TRIGGER_SOURCE, UmaTriggerSources_[session.source_], hotword.constants.UmaTriggerSource.MAX); } // If we're in always-on mode, shut down the hotword detector. The hotword // stream requires that we close and re-open it after a trigger, and the // only way to accomplish this is to shut everything down. if (this.isAlwaysOnEnabled()) this.shutdownDetector_(); }, /** * Handle hotword timeout. * @private */ onTimeout_: function() { hotword.debug('Hotword timeout!'); // We get this event when the hotword detector thinks there's a false // trigger. In this case, we need to shut down and restart the detector to // re-arm the DSP. this.shutdownDetector_(); this.updateStateFromStatus_(); }, /** * Handle speaker model saved. * @private */ onSpeakerModelSaved_: function() { hotword.debug('Speaker model saved!'); if (this.sessions_.length) { // Only call the callback of the the top session. var session = this.sessions_[this.sessions_.length - 1]; if (session.speakerModelSavedCb_) session.speakerModelSavedCb_(); } }, /** * Remove a hotwording session from the given source. * @param {!hotword.constants.SessionSource} source Source of the hotword * session request. * @private */ removeSession_: function(source) { for (var i = 0; i < this.sessions_.length; i++) { if (this.sessions_[i].source_ == source) { this.sessions_.splice(i, 1); break; } } }, /** * Start a hotwording session. * @param {!hotword.constants.SessionSource} source Source of the hotword * session request. * @param {!function()} startedCb Callback invoked when the session has * been started successfully. * @param {!function()} triggerCb Callback invoked when the hotword has * @param {function()=} modelSavedCb Callback invoked when the speaker model * has been saved. * @param {hotword.constants.RecognizerStartMode=} opt_mode The mode to * start the recognizer in. */ startSession: function(source, startedCb, triggerCb, opt_modelSavedCb, opt_mode) { if (this.isTrainingEnabled() && opt_mode) { this.startMode_ = opt_mode; } else { this.startMode_ = hotword.constants.RecognizerStartMode.NORMAL; } hotword.debug('Starting session for source: ' + source); this.removeSession_(source); this.sessions_.push(new Session_(source, triggerCb, startedCb, opt_modelSavedCb)); this.updateStateFromStatus_(); }, /** * Stops a hotwording session. * @param {!hotword.constants.SessionSource} source Source of the hotword * session request. */ stopSession: function(source) { hotword.debug('Stopping session for source: ' + source); this.removeSession_(source); // If this is a training session then switch the start mode back to // normal. if (source == hotword.constants.SessionSource.TRAINING) this.startMode_ = hotword.constants.RecognizerStartMode.NORMAL; this.updateStateFromStatus_(); }, /** * Handles a chrome.idle.onStateChanged event. * @param {!string} state State, one of "active", "idle", or "locked". * @private */ handleIdleStateChanged_: function(state) { hotword.debug('Idle state changed: ' + state); var oldLocked = this.isLocked_; if (state == 'locked') this.isLocked_ = true; else this.isLocked_ = false; if (oldLocked != this.isLocked_) this.updateStateFromStatus_(); }, /** * Handles a chrome.runtime.onStartup event. * @private */ handleStartup_: function() { // Nothing specific needs to be done here. This function exists solely to // be registered on the startup event. } }; return { StateManager: StateManager }; }); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. cr.define('hotword', function() { 'use strict'; /** * Class used to manage speaker training. Starts a hotwording session * if training is on, and automatically restarts the detector when a * a hotword is triggered. * @param {!hotword.StateManager} stateManager * @constructor * @extends {hotword.BaseSessionManager} */ function TrainingManager(stateManager) { /** * Chrome event listeners. Saved so that they can be de-registered when * hotwording is disabled. * @private */ this.finalizedSpeakerModelListener_ = this.handleFinalizeSpeakerModel_.bind(this); hotword.BaseSessionManager.call(this, stateManager, hotword.constants.SessionSource.TRAINING); } /** * Handles a success event on mounting the file system event and deletes * the user data files. * @param {FileSystem} fs The FileSystem object. * @private */ TrainingManager.deleteFiles_ = function(fs) { fs.root.getFile(hotword.constants.SPEAKER_MODEL_FILE_NAME, {create: false}, TrainingManager.deleteFile_, TrainingManager.fileErrorHandler_); for (var i = 0; i < hotword.constants.NUM_TRAINING_UTTERANCES; ++i) { fs.root.getFile(hotword.constants.UTTERANCE_FILE_PREFIX + i + hotword.constants.UTTERANCE_FILE_EXTENSION, {create: false}, TrainingManager.deleteFile_, TrainingManager.fileErrorHandler_); } }; /** * Deletes a file. * @param {FileEntry} fileEntry The FileEntry object. * @private */ TrainingManager.deleteFile_ = function(fileEntry) { if (fileEntry.isFile) { hotword.debug('File found: ' + fileEntry.fullPath); if (hotword.DEBUG || window.localStorage['hotword.DEBUG']) { fileEntry.getMetadata(function(md) { hotword.debug('File size: ' + md.size); }); } fileEntry.remove(function() { hotword.debug('File removed: ' + fileEntry.fullPath); }, TrainingManager.fileErrorHandler_); } }; /** * Handles a failure event on mounting the file system event. * @param {FileError} e The FileError object. * @private */ TrainingManager.fileErrorHandler_ = function(e) { hotword.debug('File error: ' + e.code); }; /** * Handles a failure event on checking for the existence of the speaker model. * @param {FileError} e The FileError object. * @private */ TrainingManager.sendNoSpeakerModelResponse_ = function(e) { chrome.hotwordPrivate.speakerModelExistsResult(false); }; /** * Handles a success event on mounting the file system and checks for the * existence of the speaker model. * @param {FileSystem} fs The FileSystem object. * @private */ TrainingManager.speakerModelExists_ = function(fs) { fs.root.getFile(hotword.constants.SPEAKER_MODEL_FILE_NAME, {create: false}, TrainingManager.sendSpeakerModelExistsResponse_, TrainingManager.sendNoSpeakerModelResponse_); }; /** * Sends a response through the HotwordPrivateApi indicating whether * the speaker model exists. * @param {FileEntry} fileEntry The FileEntry object. * @private */ TrainingManager.sendSpeakerModelExistsResponse_ = function(fileEntry) { if (fileEntry.isFile) { hotword.debug('File found: ' + fileEntry.fullPath); if (hotword.DEBUG || window.localStorage['hotword.DEBUG']) { fileEntry.getMetadata(function(md) { hotword.debug('File size: ' + md.size); }); } } chrome.hotwordPrivate.speakerModelExistsResult(fileEntry.isFile); }; /** * Handles a request to delete the speaker model. */ TrainingManager.handleDeleteSpeakerModel = function() { window.webkitRequestFileSystem(PERSISTENT, hotword.constants.FILE_SYSTEM_SIZE_BYTES, TrainingManager.deleteFiles_, TrainingManager.fileErrorHandler_); }; /** * Handles a request for the speaker model existence. */ TrainingManager.handleSpeakerModelExists = function() { window.webkitRequestFileSystem(PERSISTENT, hotword.constants.FILE_SYSTEM_SIZE_BYTES, TrainingManager.speakerModelExists_, TrainingManager.fileErrorHandler_); }; TrainingManager.prototype = { __proto__: hotword.BaseSessionManager.prototype, /** @override */ enabled: function() { return this.stateManager.isTrainingEnabled(); }, /** @override */ updateListeners: function() { hotword.BaseSessionManager.prototype.updateListeners.call(this); if (this.enabled()) { // Detect when the speaker model needs to be finalized. if (!chrome.hotwordPrivate.onFinalizeSpeakerModel.hasListener( this.finalizedSpeakerModelListener_)) { chrome.hotwordPrivate.onFinalizeSpeakerModel.addListener( this.finalizedSpeakerModelListener_); } this.startSession(hotword.constants.RecognizerStartMode.NEW_MODEL); } else { chrome.hotwordPrivate.onFinalizeSpeakerModel.removeListener( this.finalizedSpeakerModelListener_); } }, /** @override */ handleHotwordTrigger: function(log) { if (this.enabled()) { hotword.BaseSessionManager.prototype.handleHotwordTrigger.call( this, log); this.startSession(hotword.constants.RecognizerStartMode.ADAPT_MODEL); } }, /** @override */ startSession: function(opt_mode) { this.stateManager.startSession( this.sessionSource_, function() { chrome.hotwordPrivate.setHotwordSessionState(true, function() {}); }, this.handleHotwordTrigger.bind(this), this.handleSpeakerModelSaved_.bind(this), opt_mode); }, /** * Handles a hotwordPrivate.onFinalizeSpeakerModel event. * @private */ handleFinalizeSpeakerModel_: function() { if (this.enabled()) this.stateManager.finalizeSpeakerModel(); }, /** * Handles a hotwordPrivate.onFinalizeSpeakerModel event. * @private */ handleSpeakerModelSaved_: function() { if (this.enabled()) chrome.hotwordPrivate.notifySpeakerModelSaved(); }, }; return { TrainingManager: TrainingManager }; });
screenshot
// Copyright 2013 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @type {number} * @const */ var FEEDBACK_WIDTH = 500; /** * @type {number} * @const */ var FEEDBACK_HEIGHT = 585; var initialFeedbackInfo = null; // To generate a hashed extension ID, use a sha-256 hash, all in lower case. // Example: // echo -n 'abcdefghijklmnopqrstuvwxyzabcdef' | sha1sum | \ // awk '{print toupper($1)}' var whitelistedExtensionIds = [ '12E618C3C6E97495AAECF2AC12DEB082353241C6', // QuickOffice '3727DD3E564B6055387425027AD74C58784ACC15', // QuickOffice '2FC374607C2DF285634B67C64A2E356C607091C3', // QuickOffice '2843C1E82A9B6C6FB49308FDDF4E157B6B44BC2B', // G+ Photos '5B5DA6D054D10DB917AF7D9EAE3C56044D1B0B03', // G+ Photos '986913085E3E3C3AFDE9B7A943149C4D3F4C937B', // Feedback Extension '7AE714FFD394E073F0294CFA134C9F91DB5FBAA4', // Connectivity Diagnostics 'C7DA3A55C2355F994D3FDDAD120B426A0DF63843', // Connectivity Diagnostics '75E3CFFFC530582C583E4690EF97C70B9C8423B7', // Connectivity Diagnostics '32A1BA997F8AB8DE29ED1BA94AAF00CF2A3FEFA7', // Connectivity Diagnostics 'A291B26E088FA6BA53FFD72F0916F06EBA7C585A', // Chrome OS Recovery Tool 'D7986543275120831B39EF28D1327552FC343960', // Chrome OS Recovery Tool '8EBDF73405D0B84CEABB8C7513C9B9FA9F1DC2CE', // GetHelp app. '97B23E01B2AA064E8332EE43A7A85C628AADC3F2', // Chrome Remote Desktop Dev '9E527CDA9D7C50844E8A5DB964A54A640AE48F98', // Chrome Remote Desktop Stable 'DF52618D0B040D8A054D8348D2E84DDEEE5974E7', // Chrome Remote Desktop QA '269D721F163E587BC53C6F83553BF9CE2BB143CD', // Chrome Remote Desktop QA backup 'C449A798C495E6CF7D6AF10162113D564E67AD12', // Chrome Remote Desktop Apps V2 '981974CD1832B87BE6B21BE78F7249BB501E0DE6', // Play Movies Dev '32FD7A816E47392C92D447707A89EB07EEDE6FF7', // Play Movies Nightly '3F3CEC4B9B2B5DC2F820CE917AABDF97DB2F5B49', // Play Movies Beta 'F92FAC70AB68E1778BF62D9194C25979596AA0E6', // Play Movies Stable '0F585FB1D0FDFBEBCE1FEB5E9DFFB6DA476B8C9B', // Hangouts Extension '2D22CDB6583FD0A13758AEBE8B15E45208B4E9A7', // Hangouts Extension '49DA0B9CCEEA299186C6E7226FD66922D57543DC', // Hangouts Extension 'E7E2461CE072DF036CF9592740196159E2D7C089', // Hangouts Extension 'A74A4D44C7CFCD8844830E6140C8D763E12DD8F3', // Hangouts Extension '312745D9BF916161191143F6490085EEA0434997', // Hangouts Extension '53041A2FA309EECED01FFC751E7399186E860B2C', // Hangouts Extension '0F42756099D914A026DADFA182871C015735DD95', // Hangouts Extension '1B7734733E207CCE5C33BFAA544CA89634BF881F', // GLS nightly 'E2ACA3D943A3C96310523BCDFD8C3AF68387E6B7', // GLS stable '11B478CEC461C766A2DC1E5BEEB7970AE06DC9C2', // http://crbug.com/463552 '0EFB879311E9EFBB7C45251F89EC655711B1F6ED', // http://crbug.com/463552 '9193D3A51E2FE33B496CDA53EA330423166E7F02', // http://crbug.com/463552 'F9119B8B18C7C82B51E7BC6FF816B694F2EC3E89', // http://crbug.com/463552 'BA007D8D52CC0E2632EFCA03ACD003B0F613FD71', // http://crbug.com/470411 '5260FA31DE2007A837B7F7B0EB4A47CE477018C8', // http://crbug.com/470411 '4F4A25F31413D9B9F80E61D096DEB09082515267', // http://crbug.com/470411 'FBA0DE4D3EFB5485FC03760F01F821466907A743', // http://crbug.com/470411 'E216473E4D15C5FB14522D32C5F8DEAAB2CECDC6', // http://crbug.com/470411 '676A08383D875E51CE4C2308D875AE77199F1413', // http://crbug.com/473845 '869A23E11B308AF45A68CC386C36AADA4BE44A01', // http://crbug.com/473845 'E9CE07C7EDEFE70B9857B312E88F94EC49FCC30F', // http://crbug.com/473845 'A4577D8C2AF4CF26F40CBCA83FFA4251D6F6C8F8', // http://crbug.com/478929 'A8208CCC87F8261AFAEB6B85D5E8D47372DDEA6B', // http://crbug.com/478929 'B620CF4203315F9F2E046EDED22C7571A935958D', // http://crbug.com/510270 'B206D8716769728278D2D300349C6CB7D7DE2EF9', // http://crbug.com/510270 'EFCF5358672FEE04789FD2EC3638A67ADEDB6C8C', // http://crbug.com/514696 'FAD85BC419FE00995D196312F53448265EFA86F1', // http://crbug.com/516527 ]; /** * Function to determine whether or not a given extension id is whitelisted to * invoke the feedback UI. If the extension is whitelisted, the callback to * start the Feedback UI will be called. * @param {string} id the id of the sender extension. * @param {Function} startFeedbackCallback The callback function that will * will start the feedback UI. * @param {Object} feedbackInfo The feedback info object to pass to the * start feedback UI callback. */ function senderWhitelisted(id, startFeedbackCallback, feedbackInfo) { crypto.subtle.digest('SHA-1', new TextEncoder().encode(id)).then( function(hashBuffer) { var hashString = ''; var hashView = new Uint8Array(hashBuffer); for (var i = 0; i < hashView.length; ++i) { var n = hashView[i]; hashString += n < 0x10 ? '0' : ''; hashString += n.toString(16); } if (whitelistedExtensionIds.indexOf(hashString.toUpperCase()) != -1) startFeedbackCallback(feedbackInfo); }); } /** * Callback which gets notified once our feedback UI has loaded and is ready to * receive its initial feedback info object. * @param {Object} request The message request object. * @param {Object} sender The sender of the message. * @param {function(Object)} sendResponse Callback for sending a response. */ function feedbackReadyHandler(request, sender, sendResponse) { if (request.ready) { chrome.runtime.sendMessage( {sentFromEventPage: true, data: initialFeedbackInfo}); } } /** * Callback which gets notified if another extension is requesting feedback. * @param {Object} request The message request object. * @param {Object} sender The sender of the message. * @param {function(Object)} sendResponse Callback for sending a response. */ function requestFeedbackHandler(request, sender, sendResponse) { if (request.requestFeedback) senderWhitelisted(sender.id, startFeedbackUI, request.feedbackInfo); } /** * Callback which starts up the feedback UI. * @param {Object} feedbackInfo Object containing any initial feedback info. */ function startFeedbackUI(feedbackInfo) { initialFeedbackInfo = feedbackInfo; var win = chrome.app.window.get('default_window'); if (win) { win.show(); return; } chrome.app.window.create('html/default.html', { frame: 'none', id: 'default_window', width: FEEDBACK_WIDTH, height: FEEDBACK_HEIGHT, hidden: true, resizable: false }, function(appWindow) {}); } chrome.runtime.onMessage.addListener(feedbackReadyHandler); chrome.runtime.onMessageExternal.addListener(requestFeedbackHandler); chrome.feedbackPrivate.onFeedbackRequested.addListener(startFeedbackUI); // Copyright 2013 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** @type {string} * @const */ var FEEDBACK_LANDING_PAGE = 'https://support.google.com/chrome/go/feedback_confirmation'; /** @type {number} * @const */ var MAX_ATTACH_FILE_SIZE = 3 * 1024 * 1024; /** * @type {number} * @const */ var FEEDBACK_MIN_WIDTH = 500; /** * @type {number} * @const */ var FEEDBACK_MIN_HEIGHT = 585; /** @type {number} * @const */ var CONTENT_MARGIN_HEIGHT = 40; /** @type {number} * @const */ var MAX_SCREENSHOT_WIDTH = 100; /** @type {string} * @const */ var SYSINFO_WINDOW_ID = 'sysinfo_window'; /** @type {string} * @const */ var STATS_WINDOW_ID = 'stats_window'; var attachedFileBlob = null; var lastReader = null; var feedbackInfo = null; var systemInfo = null; /** * Reads the selected file when the user selects a file. * @param {Event} fileSelectedEvent The onChanged event for the file input box. */ function onFileSelected(fileSelectedEvent) { $('attach-error').hidden = true; var file = fileSelectedEvent.target.files[0]; if (!file) { // User canceled file selection. attachedFileBlob = null; return; } if (file.size > MAX_ATTACH_FILE_SIZE) { $('attach-error').hidden = false; // Clear our selected file. $('attach-file').value = ''; attachedFileBlob = null; return; } attachedFileBlob = file.slice(); } /** * Clears the file that was attached to the report with the initial request. * Instead we will now show the attach file button in case the user wants to * attach another file. */ function clearAttachedFile() { $('custom-file-container').hidden = true; attachedFileBlob = null; feedbackInfo.attachedFile = null; $('attach-file').hidden = false; } /** * Creates a closure that creates or shows a window with the given url. * @param {string} windowId A string with the ID of the window we are opening. * @param {string} url The destination URL of the new window. * @return {function()} A function to be called to open the window. */ function windowOpener(windowId, url) { return function(e) { e.preventDefault(); chrome.app.window.create(url, {id: windowId}); }; } /** * Opens a new window with chrome://slow_trace, downloading performance data. */ function openSlowTraceWindow() { chrome.app.window.create( 'chrome://slow_trace/tracing.zip#' + feedbackInfo.traceId); } /** * Sends the report; after the report is sent, we need to be redirected to * the landing page, but we shouldn't be able to navigate back, hence * we open the landing page in a new tab and sendReport closes this tab. * @return {boolean} True if the report was sent. */ function sendReport() { if ($('description-text').value.length == 0) { var description = $('description-text'); description.placeholder = loadTimeData.getString('no-description'); description.focus(); return false; } // Prevent double clicking from sending additional reports. $('send-report-button').disabled = true; console.log('Feedback: Sending report'); if (!feedbackInfo.attachedFile && attachedFileBlob) { feedbackInfo.attachedFile = { name: $('attach-file').value, data: attachedFileBlob }; } feedbackInfo.description = $('description-text').value; feedbackInfo.pageUrl = $('page-url-text').value; feedbackInfo.email = $('user-email-text').value; var useSystemInfo = false; var useHistograms = false; if ($('sys-info-checkbox') != null && $('sys-info-checkbox').checked && systemInfo != null) { // Send histograms along with system info. useSystemInfo = useHistograms = true; } if (useSystemInfo) { if (feedbackInfo.systemInformation != null) { // Concatenate sysinfo if we had any initial system information // sent with the feedback request event. feedbackInfo.systemInformation = feedbackInfo.systemInformation.concat(systemInfo); } else { feedbackInfo.systemInformation = systemInfo; } } feedbackInfo.sendHistograms = useHistograms; // If the user doesn't want to send the screenshot. if (!$('screenshot-checkbox').checked) feedbackInfo.screenshot = null; chrome.feedbackPrivate.sendFeedback(feedbackInfo, function(result) { window.open(FEEDBACK_LANDING_PAGE, '_blank'); window.close(); }); return true; } /** * Click listener for the cancel button. * @param {Event} e The click event being handled. */ function cancel(e) { e.preventDefault(); window.close(); } /** * Converts a blob data URL to a blob object. * @param {string} url The data URL to convert. * @return {Blob} Blob object containing the data. */ function dataUrlToBlob(url) { var mimeString = url.split(',')[0].split(':')[1].split(';')[0]; var data = atob(url.split(',')[1]); var dataArray = []; for (var i = 0; i < data.length; ++i) dataArray.push(data.charCodeAt(i)); return new Blob([new Uint8Array(dataArray)], {type: mimeString}); } function resizeAppWindow() { // We pick the width from the titlebar, which has no margins. var width = $('title-bar').scrollWidth; if (width < FEEDBACK_MIN_WIDTH) width = FEEDBACK_MIN_WIDTH; // We get the height by adding the titlebar height and the content height + // margins. We can't get the margins for the content-pane here by using // style.margin - the variable seems to not exist. var height = $('title-bar').scrollHeight + $('content-pane').scrollHeight + CONTENT_MARGIN_HEIGHT; if (height < FEEDBACK_MIN_HEIGHT) height = FEEDBACK_MIN_HEIGHT; chrome.app.window.current().resizeTo(width, height); } /** * Initializes our page. * Flow: * .) DOMContent Loaded -> . Request feedbackInfo object * . Setup page event handlers * .) Feedback Object Received -> . take screenshot * . request email * . request System info * . request i18n strings * .) Screenshot taken -> . Show Feedback window. */ function initialize() { // Add listener to receive the feedback info object. chrome.runtime.onMessage.addListener(function(request, sender, sendResponse) { if (request.sentFromEventPage) { feedbackInfo = request.data; $('description-text').textContent = feedbackInfo.description; if (feedbackInfo.pageUrl) $('page-url-text').value = feedbackInfo.pageUrl; takeScreenshot(function(screenshotCanvas) { // We've taken our screenshot, show the feedback page without any // further delay. window.webkitRequestAnimationFrame(function() { resizeAppWindow(); }); chrome.app.window.current().show(); var screenshotDataUrl = screenshotCanvas.toDataURL('image/png'); $('screenshot-image').src = screenshotDataUrl; $('screenshot-image').classList.toggle('wide-screen', $('screenshot-image').width > MAX_SCREENSHOT_WIDTH); feedbackInfo.screenshot = dataUrlToBlob(screenshotDataUrl); }); chrome.feedbackPrivate.getUserEmail(function(email) { $('user-email-text').value = email; }); chrome.feedbackPrivate.getSystemInformation(function(sysInfo) { systemInfo = sysInfo; }); // An extension called us with an attached file. if (feedbackInfo.attachedFile) { $('attached-filename-text').textContent = feedbackInfo.attachedFile.name; attachedFileBlob = feedbackInfo.attachedFile.data; $('custom-file-container').hidden = false; $('attach-file').hidden = true; } chrome.feedbackPrivate.getStrings(function(strings) { loadTimeData.data = strings; i18nTemplate.process(document, loadTimeData); if ($('sys-info-url')) { // Opens a new window showing the current system info. $('sys-info-url').onclick = windowOpener(SYSINFO_WINDOW_ID, 'chrome://system'); } if ($('histograms-url')) { // Opens a new window showing the histogram metrics. $('histograms-url').onclick = windowOpener(STATS_WINDOW_ID, 'chrome://histograms'); } // Make sure our focus starts on the description field. $('description-text').focus(); }); } }); window.addEventListener('DOMContentLoaded', function() { // Ready to receive the feedback object. chrome.runtime.sendMessage({ready: true}); // Setup our event handlers. $('attach-file').addEventListener('change', onFileSelected); $('send-report-button').onclick = sendReport; $('cancel-button').onclick = cancel; $('remove-attached-file').onclick = clearAttachedFile; }); } initialize(); // Copyright 2013 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * Function to take the screenshot of the current screen. * @param {function(HTMLCanvasElement)} callback Callback for returning the * canvas with the screenshot on it. */ function takeScreenshot(callback) { var screenshotStream = null; var video = document.createElement('video'); video.addEventListener('canplay', function(e) { if (screenshotStream) { var canvas = document.createElement('canvas'); canvas.setAttribute('width', video.videoWidth); canvas.setAttribute('height', video.videoHeight); canvas.getContext('2d').drawImage( video, 0, 0, video.videoWidth, video.videoHeight); video.pause(); video.src = ''; screenshotStream.getVideoTracks()[0].stop(); screenshotStream = null; callback(canvas); } }, false); navigator.webkitGetUserMedia( { video: { mandatory: { chromeMediaSource: 'screen', maxWidth: 4096, maxHeight: 2560 } } }, function(stream) { if (stream) { screenshotStream = stream; video.src = window.URL.createObjectURL(screenshotStream); video.play(); } }, function(err) { console.error('takeScreenshot failed: ' + err.name + '; ' + err.message + '; ' + err.constraintName); } ); } // Copyright 2013 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * Setup handlers for the minimize and close topbar buttons. */ function initializeHandlers() { $('minimize-button').addEventListener('click', function(e) { e.preventDefault(); chrome.app.window.current().minimize(); }); $('minimize-button').addEventListener('mousedown', function(e) { e.preventDefault(); }); $('close-button').addEventListener('click', function() { window.close(); }); $('close-button').addEventListener('mousedown', function(e) { e.preventDefault(); }); } window.addEventListener('DOMContentLoaded', initializeHandlers); /* Copyright 2013 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ html { height: 100%; } body { background-color: #fbfbfb; height: 100%; margin: 0; overflow: auto; padding: 0; width: 100%; } .title-bar { -webkit-align-items: center; -webkit-app-region: drag; background-color: #fff; box-shadow: 0 1px #d0d0d0; color: rgb(80, 80, 82); display: -webkit-flex; font-size: 15px; height: 48px; } .title-bar #page-title { -webkit-flex: 1 1 auto; -webkit-margin-start: 20px; } .title-bar .button-bar { -webkit-flex: 0 1 auto; } .content { color: #646464; font-size: 12px; margin: 20px; } .content #description-text { border-color: #c8c8c8; box-sizing: border-box; height: 120px; line-height: 18px; padding: 10px; resize: none; width: 100%; } .content .text-field-container { -webkit-align-items: center; -webkit-padding-start: 10px; display: -webkit-flex; height: 29px; margin-top: 10px; } .content .text-field-container > label { -webkit-flex: 0 1 auto; width: 100px; } .content .text-field-container > input[type=text] { -webkit-flex: 1 1 auto; -webkit-padding-start: 5px; border: 1px solid; border-color: #c8c8c8; color: #585858; height: 100%; } .content .text-field-container > input[type=checkbox] { margin-right: 9px; } .content .checkbox-field-container { -webkit-align-items: center; display: -webkit-flex; height: 29px; } #screenshot-container { margin-top: 10px; } .content #screenshot-image { -webkit-margin-start: 100px; display: block; height: 60px; margin-top: 40px; transition: all 250ms ease; } .content #screenshot-image:hover { -webkit-margin-start: 80px; height: 125px; margin-top: 80px; z-index: 1; } .content #screenshot-image.wide-screen { height: auto; width: 100px; } .content #screenshot-image.wide-screen:hover { height: auto; width: 200px; } .content #privacy-note { color: #969696; font-size: 10px; line-height: 15px; margin-bottom: 20px; margin-top: 20px; } .content .buttons-pane { display: -webkit-flex; justify-content: flex-end } .content .remove-file-button { -webkit-margin-start: 5px; background-color: transparent; background-image: -webkit-image-set( url(chrome://resources/images/apps/button_butter_bar_close.png) 1x, url(chrome://resources/images/2x/apps/button_butter_bar_close.png) 2x); background-position: 50% 80%; background-repeat: no-repeat; border: none; height: 16px; pointer-events: auto; width: 16px; } .content .remove-file-button:hover { background-image: -webkit-image-set( url(chrome://resources/images/apps/button_butter_bar_close_hover.png) 1x, url(chrome://resources/images/2x/apps/button_butter_bar_close_hover.png) 2x); } .content .remove-file-button:active { background-image: -webkit-image-set( url(chrome://resources/images/apps/button_butter_bar_close_pressed.png) 1x, url(chrome://resources/images/2x/apps/button_butter_bar_close_pressed.png) 2x); } .content #attach-file-note { -webkit-margin-start: 112px; margin-bottom: 10px; margin-top: 10px; } .content .attach-file-notification { color: rgb(204, 0, 0); font-weight: bold; } button.white-button { -webkit-margin-end: 10px; color: #000; } button.blue-button { color: #fff; text-shadow: 1px sharp drop shadow rgb(45, 106, 218); } PNG  IHDR DcPLTEZZ\``baacǗbbdk0e tRNSMNIDATx^ 0DQQw)Dzm!,((++g ecz,3yAw 闖5io`hЪ/XTp tH(t͎y0@\}dg0Y>pOapS e\ ^*S%IENDB`PNG  IHDR@@PLTEZZ\[[]]]_ٺېڏÒ{{|nnpmmonnoݗzz{``b\\^||}oop__aooqM8ntRNS*'*+jT0IDATx^N@^轾k!,lٙ0{]F 56ZРN V@QQ? Ԁ6-|V_v(R#A5;ڜc@0M(EjJLے3`|k, * notifications: Array * }} */ var ServerResponse; /** * Notification group as the client stores it. |cardsTimestamp| and |rank| are * defined if |cards| is non-empty. |nextPollTime| is undefined if the server * (1) never sent 'nextPollSeconds' for the group or * (2) didn't send 'nextPollSeconds' with the last group update containing a * cards update and all the times after that. * * @typedef {{ * cards: Array, * cardsTimestamp: (number|undefined), * nextPollTime: (number|undefined), * rank: (number|undefined) * }} */ var StoredNotificationGroup; /** * Pending (not yet successfully sent) dismissal for a received notification. * |time| is the moment when the user requested dismissal. * * @typedef {{ * chromeNotificationId: ChromeNotificationId, * time: number, * dismissalData: DismissalData * }} */ var PendingDismissal; /** * Checks if a new task can't be scheduled when another task is already * scheduled. * @param {string} newTaskName Name of the new task. * @param {string} scheduledTaskName Name of the scheduled task. * @return {boolean} Whether the new task conflicts with the existing task. */ function areTasksConflicting(newTaskName, scheduledTaskName) { if (newTaskName == UPDATE_CARDS_TASK_NAME && scheduledTaskName == UPDATE_CARDS_TASK_NAME) { // If a card update is requested while an old update is still scheduled, we // don't need the new update. return true; } if (newTaskName == RETRY_DISMISS_TASK_NAME && (scheduledTaskName == UPDATE_CARDS_TASK_NAME || scheduledTaskName == DISMISS_CARD_TASK_NAME || scheduledTaskName == RETRY_DISMISS_TASK_NAME)) { // No need to schedule retry-dismiss action if another action that tries to // send dismissals is scheduled. return true; } return false; } var tasks = buildTaskManager(areTasksConflicting); // Add error processing to API calls. wrapper.instrumentChromeApiFunction('gcm.onMessage.addListener', 0); wrapper.instrumentChromeApiFunction('gcm.register', 1); wrapper.instrumentChromeApiFunction('gcm.unregister', 0); wrapper.instrumentChromeApiFunction('metricsPrivate.getVariationParams', 1); wrapper.instrumentChromeApiFunction('notifications.clear', 1); wrapper.instrumentChromeApiFunction('notifications.create', 2); wrapper.instrumentChromeApiFunction('notifications.getPermissionLevel', 0); wrapper.instrumentChromeApiFunction('notifications.update', 2); wrapper.instrumentChromeApiFunction('notifications.getAll', 0); wrapper.instrumentChromeApiFunction( 'notifications.onButtonClicked.addListener', 0); wrapper.instrumentChromeApiFunction('notifications.onClicked.addListener', 0); wrapper.instrumentChromeApiFunction('notifications.onClosed.addListener', 0); wrapper.instrumentChromeApiFunction( 'notifications.onPermissionLevelChanged.addListener', 0); wrapper.instrumentChromeApiFunction( 'notifications.onShowSettings.addListener', 0); wrapper.instrumentChromeApiFunction('permissions.contains', 1); wrapper.instrumentChromeApiFunction('runtime.onInstalled.addListener', 0); wrapper.instrumentChromeApiFunction('runtime.onStartup.addListener', 0); wrapper.instrumentChromeApiFunction('storage.onChanged.addListener', 0); wrapper.instrumentChromeApiFunction('tabs.create', 1); var updateCardsAttempts = buildAttemptManager( 'cards-update', requestCards, INITIAL_POLLING_PERIOD_SECONDS, MAXIMUM_POLLING_PERIOD_SECONDS); var optInPollAttempts = buildAttemptManager( 'optin', pollOptedInNoImmediateRecheck, INITIAL_POLLING_PERIOD_SECONDS, MAXIMUM_POLLING_PERIOD_SECONDS); var optInRecheckAttempts = buildAttemptManager( 'optin-recheck', pollOptedInWithRecheck, INITIAL_OPTIN_RECHECK_PERIOD_SECONDS, MAXIMUM_OPTIN_RECHECK_PERIOD_SECONDS); var dismissalAttempts = buildAttemptManager( 'dismiss', retryPendingDismissals, INITIAL_RETRY_DISMISS_PERIOD_SECONDS, MAXIMUM_RETRY_DISMISS_PERIOD_SECONDS); var cardSet = buildCardSet(); var authenticationManager = buildAuthenticationManager(); /** * Google Now UMA event identifier. * @enum {number} */ var GoogleNowEvent = { REQUEST_FOR_CARDS_TOTAL: 0, REQUEST_FOR_CARDS_SUCCESS: 1, CARDS_PARSE_SUCCESS: 2, DISMISS_REQUEST_TOTAL: 3, DISMISS_REQUEST_SUCCESS: 4, LOCATION_REQUEST: 5, DELETED_LOCATION_UPDATE: 6, EXTENSION_START: 7, DELETED_SHOW_WELCOME_TOAST: 8, STOPPED: 9, DELETED_USER_SUPPRESSED: 10, SIGNED_OUT: 11, NOTIFICATION_DISABLED: 12, GOOGLE_NOW_DISABLED: 13, EVENTS_TOTAL: 14 // EVENTS_TOTAL is not an event; all new events need to be // added before it. }; /** * Records a Google Now Event. * @param {GoogleNowEvent} event Event identifier. */ function recordEvent(event) { var metricDescription = { metricName: 'GoogleNow.Event', type: 'histogram-linear', min: 1, max: GoogleNowEvent.EVENTS_TOTAL, buckets: GoogleNowEvent.EVENTS_TOTAL + 1 }; chrome.metricsPrivate.recordValue(metricDescription, event); } /** * Records a notification clicked event. * @param {number|undefined} cardTypeId Card type ID. */ function recordNotificationClick(cardTypeId) { if (cardTypeId !== undefined) { chrome.metricsPrivate.recordSparseValue( 'GoogleNow.Card.Clicked', cardTypeId); } } /** * Records a button clicked event. * @param {number|undefined} cardTypeId Card type ID. * @param {number} buttonIndex Button Index */ function recordButtonClick(cardTypeId, buttonIndex) { if (cardTypeId !== undefined) { chrome.metricsPrivate.recordSparseValue( 'GoogleNow.Card.Button.Clicked' + buttonIndex, cardTypeId); } } /** * Checks the result of the HTTP Request and updates the authentication * manager on any failure. * @param {string} token Authentication token to validate against an * XMLHttpRequest. * @return {function(XMLHttpRequest)} Function that validates the token with the * supplied XMLHttpRequest. */ function checkAuthenticationStatus(token) { return function(request) { if (request.status == HTTP_FORBIDDEN || request.status == HTTP_UNAUTHORIZED) { authenticationManager.removeToken(token); } } } /** * Builds and sends an authenticated request to the notification server. * @param {string} method Request method. * @param {string} handlerName Server handler to send the request to. * @param {string=} opt_contentType Value for the Content-type header. * @return {Promise} A promise to issue a request to the server. * The promise rejects if the response is not within the HTTP 200 range. */ function requestFromServer(method, handlerName, opt_contentType) { return authenticationManager.getAuthToken().then(function(token) { var request = buildServerRequest(method, handlerName, opt_contentType); request.setRequestHeader('Authorization', 'Bearer ' + token); var requestPromise = new Promise(function(resolve, reject) { request.addEventListener('loadend', function() { if ((200 <= request.status) && (request.status < 300)) { resolve(request); } else { reject(request); } }, false); request.send(); }); requestPromise.catch(checkAuthenticationStatus(token)); return requestPromise; }); } /** * Shows the notification groups as notification cards. * @param {Object} notificationGroups Map from group * name to group information. * @param {function(ReceivedNotification)=} opt_onCardShown Optional parameter * called when each card is shown. * @return {Promise} A promise to show the notification groups as cards. */ function showNotificationGroups(notificationGroups, opt_onCardShown) { /** @type {Object} */ var cards = combineCardsFromGroups(notificationGroups); console.log('showNotificationGroups ' + JSON.stringify(cards)); return new Promise(function(resolve) { instrumented.notifications.getAll(function(notifications) { console.log('showNotificationGroups-getAll ' + JSON.stringify(notifications)); notifications = notifications || {}; // Mark notifications that didn't receive an update as having received // an empty update. for (var chromeNotificationId in notifications) { cards[chromeNotificationId] = cards[chromeNotificationId] || []; } /** @type {Object} */ var notificationsData = {}; // Create/update/delete notifications. for (var chromeNotificationId in cards) { notificationsData[chromeNotificationId] = cardSet.update( chromeNotificationId, cards[chromeNotificationId], notificationGroups, opt_onCardShown); } chrome.storage.local.set({notificationsData: notificationsData}); resolve(); }); }); } /** * Removes all cards and card state on Google Now close down. */ function removeAllCards() { console.log('removeAllCards'); // TODO(robliao): Once Google Now clears its own checkbox in the // notifications center and bug 260376 is fixed, the below clearing // code is no longer necessary. instrumented.notifications.getAll(function(notifications) { notifications = notifications || {}; for (var chromeNotificationId in notifications) { instrumented.notifications.clear(chromeNotificationId, function() {}); } chrome.storage.local.remove(['notificationsData', 'notificationGroups']); }); } /** * Adds a card group into a set of combined cards. * @param {Object} combinedCards Map from * chromeNotificationId to a combined card. * This is an input/output parameter. * @param {StoredNotificationGroup} storedGroup Group to combine into the * combined card set. */ function combineGroup(combinedCards, storedGroup) { for (var i = 0; i < storedGroup.cards.length; i++) { /** @type {ReceivedNotification} */ var receivedNotification = storedGroup.cards[i]; /** @type {UncombinedNotification} */ var uncombinedNotification = { receivedNotification: receivedNotification, showTime: receivedNotification.trigger.showTimeSec && (storedGroup.cardsTimestamp + receivedNotification.trigger.showTimeSec * MS_IN_SECOND), hideTime: storedGroup.cardsTimestamp + receivedNotification.trigger.hideTimeSec * MS_IN_SECOND }; var combinedCard = combinedCards[receivedNotification.chromeNotificationId] || []; combinedCard.push(uncombinedNotification); combinedCards[receivedNotification.chromeNotificationId] = combinedCard; } } /** * Calculates the soonest poll time from a map of groups as an absolute time. * @param {Object} groups Map from group name to group * information. * @return {number} The next poll time based off of the groups. */ function calculateNextPollTimeMilliseconds(groups) { var nextPollTime = null; for (var groupName in groups) { var group = groups[groupName]; if (group.nextPollTime !== undefined) { nextPollTime = nextPollTime == null ? group.nextPollTime : Math.min(group.nextPollTime, nextPollTime); } } // At least one of the groups must have nextPollTime. verify(nextPollTime != null, 'calculateNextPollTime: nextPollTime is null'); return nextPollTime; } /** * Schedules next cards poll. * @param {Object} groups Map from group name to group * information. */ function scheduleNextCardsPoll(groups) { var nextPollTimeMs = calculateNextPollTimeMilliseconds(groups); var nextPollDelaySeconds = Math.max( (nextPollTimeMs - Date.now()) / MS_IN_SECOND, MINIMUM_POLLING_PERIOD_SECONDS); updateCardsAttempts.start(nextPollDelaySeconds); } /** * Schedules the next opt-in check poll. */ function scheduleOptInCheckPoll() { instrumented.metricsPrivate.getVariationParams( 'GoogleNow', function(params) { var optinPollPeriodSeconds = parseInt(params && params.optinPollPeriodSeconds, 10) || DEFAULT_OPTIN_CHECK_PERIOD_SECONDS; optInPollAttempts.start(optinPollPeriodSeconds); }); } /** * Combines notification groups into a set of Chrome notifications. * @param {Object} notificationGroups Map from group * name to group information. * @return {Object} Cards to show. */ function combineCardsFromGroups(notificationGroups) { console.log('combineCardsFromGroups ' + JSON.stringify(notificationGroups)); /** @type {Object} */ var combinedCards = {}; for (var groupName in notificationGroups) combineGroup(combinedCards, notificationGroups[groupName]); return combinedCards; } /** * Processes a server response for consumption by showNotificationGroups. * @param {ServerResponse} response Server response. * @return {Promise} A promise to process the server response and provide * updated groups. Rejects if the server response shouldn't be processed. */ function processServerResponse(response) { console.log('processServerResponse ' + JSON.stringify(response)); if (response.googleNowDisabled) { chrome.storage.local.set({googleNowEnabled: false}); // Stop processing now. The state change will clear the cards. return Promise.reject(); } var receivedGroups = response.groups; return fillFromChromeLocalStorage({ /** @type {Object} */ notificationGroups: {}, /** @type {Object} */ recentDismissals: {} }).then(function(items) { console.log('processServerResponse-get ' + JSON.stringify(items)); // Build a set of non-expired recent dismissals. It will be used for // client-side filtering of cards. /** @type {Object} */ var updatedRecentDismissals = {}; var now = Date.now(); for (var serverNotificationId in items.recentDismissals) { var dismissalAge = now - items.recentDismissals[serverNotificationId]; if (dismissalAge < DISMISS_RETENTION_TIME_MS) { updatedRecentDismissals[serverNotificationId] = items.recentDismissals[serverNotificationId]; } } // Populate groups with corresponding cards. if (response.notifications) { for (var i = 0; i < response.notifications.length; ++i) { /** @type {ReceivedNotification} */ var card = response.notifications[i]; if (!(card.notificationId in updatedRecentDismissals)) { var group = receivedGroups[card.groupName]; group.cards = group.cards || []; group.cards.push(card); } } } // Build updated set of groups. var updatedGroups = {}; for (var groupName in receivedGroups) { var receivedGroup = receivedGroups[groupName]; var storedGroup = items.notificationGroups[groupName] || { cards: [], cardsTimestamp: undefined, nextPollTime: undefined, rank: undefined }; if (receivedGroup.requested) receivedGroup.cards = receivedGroup.cards || []; if (receivedGroup.cards) { // If the group contains a cards update, all its fields will get new // values. storedGroup.cards = receivedGroup.cards; storedGroup.cardsTimestamp = now; storedGroup.rank = receivedGroup.rank; storedGroup.nextPollTime = undefined; // The code below assigns nextPollTime a defined value if // nextPollSeconds is specified in the received group. // If the group's cards are not updated, and nextPollSeconds is // unspecified, this method doesn't change group's nextPollTime. } // 'nextPollSeconds' may be sent even for groups that don't contain // cards updates. if (receivedGroup.nextPollSeconds !== undefined) { storedGroup.nextPollTime = now + receivedGroup.nextPollSeconds * MS_IN_SECOND; } updatedGroups[groupName] = storedGroup; } scheduleNextCardsPoll(updatedGroups); return { updatedGroups: updatedGroups, recentDismissals: updatedRecentDismissals }; }); } /** * Update the Explanatory Total Cards Shown Count. */ function countExplanatoryCard() { localStorage['explanatoryCardsShown']++; } /** * Determines if cards should have an explanation link. * @return {boolean} true if an explanatory card should be shown. */ function shouldShowExplanatoryCard() { var isBelowThreshold = localStorage['explanatoryCardsShown'] < EXPLANATORY_CARDS_LINK_THRESHOLD; return isBelowThreshold; } /** * Requests notification cards from the server for specified groups. * @param {Array} groupNames Names of groups that need to be refreshed. * @return {Promise} A promise to request the specified notification groups. */ function requestNotificationGroupsFromServer(groupNames) { console.log( 'requestNotificationGroupsFromServer from ' + NOTIFICATION_CARDS_URL + ', groupNames=' + JSON.stringify(groupNames)); recordEvent(GoogleNowEvent.REQUEST_FOR_CARDS_TOTAL); var requestParameters = '?timeZoneOffsetMs=' + (-new Date().getTimezoneOffset() * MS_IN_MINUTE); if (shouldShowExplanatoryCard()) { requestParameters += '&cardExplanation=true'; } groupNames.forEach(function(groupName) { requestParameters += ('&requestTypes=' + groupName); }); requestParameters += '&uiLocale=' + navigator.language; console.log( 'requestNotificationGroupsFromServer: request=' + requestParameters); return requestFromServer('GET', 'notifications' + requestParameters).then( function(request) { console.log( 'requestNotificationGroupsFromServer-received ' + request.status); if (request.status == HTTP_OK) { recordEvent(GoogleNowEvent.REQUEST_FOR_CARDS_SUCCESS); return JSON.parse(request.responseText); } }); } /** * Performs an opt-in poll without an immediate recheck. * If the response is not opted-in, schedule an opt-in check poll. */ function pollOptedInNoImmediateRecheck() { requestAndUpdateOptedIn() .then(function(optedIn) { if (!optedIn) { // Request a repoll if we're not opted in. return Promise.reject(); } }) .catch(function() { scheduleOptInCheckPoll(); }); } /** * Requests the account opted-in state from the server and updates any * state as necessary. * @return {Promise} A promise to request and update the opted-in state. * The promise resolves with the opt-in state. */ function requestAndUpdateOptedIn() { console.log('requestOptedIn from ' + NOTIFICATION_CARDS_URL); return requestFromServer('GET', 'settings/optin').then(function(request) { console.log( 'requestOptedIn-received ' + request.status + ' ' + request.response); if (request.status == HTTP_OK) { var parsedResponse = JSON.parse(request.responseText); return parsedResponse.value; } }).then(function(optedIn) { chrome.storage.local.set({googleNowEnabled: optedIn}); return optedIn; }); } /** * Determines the groups that need to be requested right now. * @return {Promise} A promise to determine the groups to request. */ function getGroupsToRequest() { return fillFromChromeLocalStorage({ /** @type {Object} */ notificationGroups: {} }).then(function(items) { console.log('getGroupsToRequest-storage-get ' + JSON.stringify(items)); var groupsToRequest = []; var now = Date.now(); for (var groupName in items.notificationGroups) { var group = items.notificationGroups[groupName]; if (group.nextPollTime !== undefined && group.nextPollTime <= now) groupsToRequest.push(groupName); } return groupsToRequest; }); } /** * Requests notification cards from the server. * @return {Promise} A promise to request the notification cards. * Rejects if the cards won't be requested. */ function requestNotificationCards() { console.log('requestNotificationCards'); return getGroupsToRequest() .then(requestNotificationGroupsFromServer) .then(processServerResponse) .then(function(processedResponse) { var onCardShown = shouldShowExplanatoryCard() ? countExplanatoryCard : undefined; return showNotificationGroups( processedResponse.updatedGroups, onCardShown).then(function() { chrome.storage.local.set({ notificationGroups: processedResponse.updatedGroups, recentDismissals: processedResponse.updatedRecentDismissals }); recordEvent(GoogleNowEvent.CARDS_PARSE_SUCCESS); } ); }); } /** * Determines if an immediate retry should occur based off of the given groups. * The NOR group is expected most often and less latency sensitive, so we will * simply wait MAXIMUM_POLLING_PERIOD_SECONDS before trying again. * @param {Array} groupNames Names of groups that need to be refreshed. * @return {boolean} Whether a retry should occur. */ function shouldScheduleRetryFromGroupList(groupNames) { return (groupNames.length != 1) || (groupNames[0] !== 'NOR'); } /** * Requests and shows notification cards. */ function requestCards() { console.log('requestCards @' + new Date()); // LOCATION_REQUEST is a legacy histogram value when we requested location. // This corresponds to the extension attempting to request for cards. // We're keeping the name the same to keep our histograms in order. recordEvent(GoogleNowEvent.LOCATION_REQUEST); tasks.add(UPDATE_CARDS_TASK_NAME, function() { console.log('requestCards-task-begin'); updateCardsAttempts.isRunning(function(running) { if (running) { // The cards are requested only if there are no unsent dismissals. processPendingDismissals() .then(requestNotificationCards) .catch(function() { return getGroupsToRequest().then(function(groupsToRequest) { if (shouldScheduleRetryFromGroupList(groupsToRequest)) { updateCardsAttempts.scheduleRetry(); } }); }); } }); }); } /** * Sends a server request to dismiss a card. * @param {ChromeNotificationId} chromeNotificationId chrome.notifications ID of * the card. * @param {number} dismissalTimeMs Time of the user's dismissal of the card in * milliseconds since epoch. * @param {DismissalData} dismissalData Data to build a dismissal request. * @return {Promise} A promise to request the card dismissal, rejects on error. */ function requestCardDismissal( chromeNotificationId, dismissalTimeMs, dismissalData) { console.log('requestDismissingCard ' + chromeNotificationId + ' from ' + NOTIFICATION_CARDS_URL + ', dismissalData=' + JSON.stringify(dismissalData)); var dismissalAge = Date.now() - dismissalTimeMs; if (dismissalAge > MAXIMUM_DISMISSAL_AGE_MS) { return Promise.resolve(); } recordEvent(GoogleNowEvent.DISMISS_REQUEST_TOTAL); var requestParameters = 'notifications/' + dismissalData.notificationId + '?age=' + dismissalAge + '&chromeNotificationId=' + chromeNotificationId; for (var paramField in dismissalData.parameters) requestParameters += ('&' + paramField + '=' + dismissalData.parameters[paramField]); console.log('requestCardDismissal: requestParameters=' + requestParameters); return requestFromServer('DELETE', requestParameters).then(function(request) { console.log('requestDismissingCard-onloadend ' + request.status); if (request.status == HTTP_NOCONTENT) recordEvent(GoogleNowEvent.DISMISS_REQUEST_SUCCESS); // A dismissal doesn't require further retries if it was successful or // doesn't have a chance for successful completion. return (request.status == HTTP_NOCONTENT) ? Promise.resolve() : Promise.reject(); }).catch(function(request) { request = (typeof request === 'object') ? request : {}; return (request.status == HTTP_BAD_REQUEST || request.status == HTTP_METHOD_NOT_ALLOWED) ? Promise.resolve() : Promise.reject(); }); } /** * Tries to send dismiss requests for all pending dismissals. * @return {Promise} A promise to process the pending dismissals. * The promise is rejected if a problem was encountered. */ function processPendingDismissals() { return fillFromChromeLocalStorage({ /** @type {Array} */ pendingDismissals: [], /** @type {Object} */ recentDismissals: {} }).then(function(items) { console.log( 'processPendingDismissals-storage-get ' + JSON.stringify(items)); var dismissalsChanged = false; function onFinish(success) { if (dismissalsChanged) { chrome.storage.local.set({ pendingDismissals: items.pendingDismissals, recentDismissals: items.recentDismissals }); } return success ? Promise.resolve() : Promise.reject(); } function doProcessDismissals() { if (items.pendingDismissals.length == 0) { dismissalAttempts.stop(); return onFinish(true); } // Send dismissal for the first card, and if successful, repeat // recursively with the rest. /** @type {PendingDismissal} */ var dismissal = items.pendingDismissals[0]; return requestCardDismissal( dismissal.chromeNotificationId, dismissal.time, dismissal.dismissalData).then(function() { dismissalsChanged = true; items.pendingDismissals.splice(0, 1); items.recentDismissals[dismissal.dismissalData.notificationId] = Date.now(); return doProcessDismissals(); }).catch(function() { return onFinish(false); }); } return doProcessDismissals(); }); } /** * Submits a task to send pending dismissals. */ function retryPendingDismissals() { tasks.add(RETRY_DISMISS_TASK_NAME, function() { processPendingDismissals().catch(dismissalAttempts.scheduleRetry); }); } /** * Opens a URL in a new tab. * @param {string} url URL to open. */ function openUrl(url) { instrumented.tabs.create({url: url}, function(tab) { if (tab) chrome.windows.update(tab.windowId, {focused: true}); else chrome.windows.create({url: url, focused: true}); }); } /** * Opens URL corresponding to the clicked part of the notification. * @param {ChromeNotificationId} chromeNotificationId chrome.notifications ID of * the card. * @param {function(NotificationDataEntry): (string|undefined)} selector * Function that extracts the url for the clicked area from the * notification data entry. */ function onNotificationClicked(chromeNotificationId, selector) { fillFromChromeLocalStorage({ /** @type {Object} */ notificationsData: {} }).then(function(items) { /** @type {(NotificationDataEntry|undefined)} */ var notificationDataEntry = items.notificationsData[chromeNotificationId]; if (!notificationDataEntry) return; var url = selector(notificationDataEntry); if (!url) return; openUrl(url); }); } /** * Callback for chrome.notifications.onClosed event. * @param {ChromeNotificationId} chromeNotificationId chrome.notifications ID of * the card. * @param {boolean} byUser Whether the notification was closed by the user. */ function onNotificationClosed(chromeNotificationId, byUser) { if (!byUser) return; // At this point we are guaranteed that the notification is a now card. chrome.metricsPrivate.recordUserAction('GoogleNow.Dismissed'); tasks.add(DISMISS_CARD_TASK_NAME, function() { dismissalAttempts.start(); fillFromChromeLocalStorage({ /** @type {Array} */ pendingDismissals: [], /** @type {Object} */ notificationsData: {}, /** @type {Object} */ notificationGroups: {} }).then(function(items) { /** @type {NotificationDataEntry} */ var notificationData = items.notificationsData[chromeNotificationId] || { timestamp: Date.now(), combinedCard: [] }; var dismissalResult = cardSet.onDismissal( chromeNotificationId, notificationData, items.notificationGroups); for (var i = 0; i < dismissalResult.dismissals.length; i++) { /** @type {PendingDismissal} */ var dismissal = { chromeNotificationId: chromeNotificationId, time: Date.now(), dismissalData: dismissalResult.dismissals[i] }; items.pendingDismissals.push(dismissal); } items.notificationsData[chromeNotificationId] = dismissalResult.notificationData; chrome.storage.local.set(items); processPendingDismissals(); }); }); } /** * Initializes the polling system to start fetching cards. */ function startPollingCards() { console.log('startPollingCards'); // Create an update timer for a case when for some reason requesting // cards gets stuck. updateCardsAttempts.start(MAXIMUM_POLLING_PERIOD_SECONDS); requestCards(); } /** * Stops all machinery in the polling system. */ function stopPollingCards() { console.log('stopPollingCards'); updateCardsAttempts.stop(); // Since we're stopping everything, clear all runtime storage. // We don't clear localStorage since those values are still relevant // across Google Now start-stop events. chrome.storage.local.clear(); } /** * Initializes the event page on install or on browser startup. */ function initialize() { recordEvent(GoogleNowEvent.EXTENSION_START); onStateChange(); } /** * Starts or stops the main pipeline for polling cards. * @param {boolean} shouldPollCardsRequest true to start and * false to stop polling cards. */ function setShouldPollCards(shouldPollCardsRequest) { updateCardsAttempts.isRunning(function(currentValue) { if (shouldPollCardsRequest != currentValue) { console.log('Action Taken setShouldPollCards=' + shouldPollCardsRequest); if (shouldPollCardsRequest) startPollingCards(); else stopPollingCards(); } else { console.log( 'Action Ignored setShouldPollCards=' + shouldPollCardsRequest); } }); } /** * Starts or stops the optin check and GCM channel to receive optin * notifications. * @param {boolean} shouldPollOptInStatus true to start and false to stop * polling the optin status. */ function setShouldPollOptInStatus(shouldPollOptInStatus) { optInPollAttempts.isRunning(function(currentValue) { if (shouldPollOptInStatus != currentValue) { console.log( 'Action Taken setShouldPollOptInStatus=' + shouldPollOptInStatus); if (shouldPollOptInStatus) { pollOptedInNoImmediateRecheck(); } else { optInPollAttempts.stop(); } } else { console.log( 'Action Ignored setShouldPollOptInStatus=' + shouldPollOptInStatus); } }); if (shouldPollOptInStatus) { registerForGcm(); } else { unregisterFromGcm(); } } /** * Enables or disables the Google Now background permission. * @param {boolean} backgroundEnable true to run in the background. * false to not run in the background. */ function setBackgroundEnable(backgroundEnable) { instrumented.permissions.contains({permissions: ['background']}, function(hasPermission) { if (backgroundEnable != hasPermission) { console.log('Action Taken setBackgroundEnable=' + backgroundEnable); if (backgroundEnable) chrome.permissions.request({permissions: ['background']}); else chrome.permissions.remove({permissions: ['background']}); } else { console.log('Action Ignored setBackgroundEnable=' + backgroundEnable); } }); } /** * Record why this extension would not poll for cards. * @param {boolean} signedIn true if the user is signed in. * @param {boolean} notificationEnabled true if * Google Now for Chrome is allowed to show notifications. * @param {boolean} googleNowEnabled true if * the Google Now is enabled for the user. */ function recordEventIfNoCards(signedIn, notificationEnabled, googleNowEnabled) { if (!signedIn) { recordEvent(GoogleNowEvent.SIGNED_OUT); } else if (!notificationEnabled) { recordEvent(GoogleNowEvent.NOTIFICATION_DISABLED); } else if (!googleNowEnabled) { recordEvent(GoogleNowEvent.GOOGLE_NOW_DISABLED); } } /** * Does the actual work of deciding what Google Now should do * based off of the current state of Chrome. * @param {boolean} signedIn true if the user is signed in. * @param {boolean} canEnableBackground true if * the background permission can be requested. * @param {boolean} notificationEnabled true if * Google Now for Chrome is allowed to show notifications. * @param {boolean} googleNowEnabled true if * the Google Now is enabled for the user. */ function updateRunningState( signedIn, canEnableBackground, notificationEnabled, googleNowEnabled) { console.log( 'State Update signedIn=' + signedIn + ' ' + 'canEnableBackground=' + canEnableBackground + ' ' + 'notificationEnabled=' + notificationEnabled + ' ' + 'googleNowEnabled=' + googleNowEnabled); var shouldPollCards = false; var shouldPollOptInStatus = false; var shouldSetBackground = false; if (signedIn && notificationEnabled) { shouldPollCards = googleNowEnabled; shouldPollOptInStatus = !googleNowEnabled; shouldSetBackground = canEnableBackground && googleNowEnabled; } else { recordEvent(GoogleNowEvent.STOPPED); } recordEventIfNoCards(signedIn, notificationEnabled, googleNowEnabled); console.log( 'Requested Actions shouldSetBackground=' + shouldSetBackground + ' ' + 'setShouldPollCards=' + shouldPollCards + ' ' + 'shouldPollOptInStatus=' + shouldPollOptInStatus); setBackgroundEnable(shouldSetBackground); setShouldPollCards(shouldPollCards); setShouldPollOptInStatus(shouldPollOptInStatus); if (!shouldPollCards) { removeAllCards(); } } /** * Coordinates the behavior of Google Now for Chrome depending on * Chrome and extension state. */ function onStateChange() { tasks.add(STATE_CHANGED_TASK_NAME, function() { Promise.all([ authenticationManager.isSignedIn(), canEnableBackground(), isNotificationsEnabled(), isGoogleNowEnabled()]) .then(function(results) { updateRunningState.apply(null, results); }); }); } /** * Determines if background mode should be requested. * @return {Promise} A promise to determine if background can be enabled. */ function canEnableBackground() { return new Promise(function(resolve) { instrumented.metricsPrivate.getVariationParams( 'GoogleNow', function(response) { resolve(!response || (response.canEnableBackground != 'false')); }); }); } /** * Checks if Google Now is enabled in the notifications center. * @return {Promise} A promise to determine if Google Now is enabled * in the notifications center. */ function isNotificationsEnabled() { return new Promise(function(resolve) { instrumented.notifications.getPermissionLevel(function(level) { resolve(level == 'granted'); }); }); } /** * Gets the previous Google Now opt-in state. * @return {Promise} A promise to determine the previous Google Now * opt-in state. */ function isGoogleNowEnabled() { return fillFromChromeLocalStorage({googleNowEnabled: false}) .then(function(items) { return items.googleNowEnabled; }); } /** * Ensures the extension is ready to listen for GCM messages. */ function registerForGcm() { // We don't need to use the key yet, just ensure the channel is set up. getGcmNotificationKey(); } /** * Returns a Promise resolving to either a cached or new GCM notification key. * Rejects if registration fails. * @return {Promise} A Promise that resolves to a potentially-cached GCM key. */ function getGcmNotificationKey() { return fillFromChromeLocalStorage({gcmNotificationKey: undefined}) .then(function(items) { if (items.gcmNotificationKey) { console.log('Reused gcm key from storage.'); return Promise.resolve(items.gcmNotificationKey); } return requestNewGcmNotificationKey(); }); } /** * Returns a promise resolving to a GCM Notificaiton Key. May call * chrome.gcm.register() first if required. Rejects on registration failure. * @return {Promise} A Promise that resolves to a fresh GCM Notification key. */ function requestNewGcmNotificationKey() { return getGcmRegistrationId().then(function(gcmId) { authenticationManager.getAuthToken().then(function(token) { authenticationManager.getLogin().then(function(username) { return new Promise(function(resolve, reject) { var xhr = new XMLHttpRequest(); xhr.responseType = 'application/json'; xhr.open('POST', GCM_REGISTRATION_URL, true); xhr.setRequestHeader('Content-Type', 'application/json'); xhr.setRequestHeader('Authorization', 'Bearer ' + token); xhr.setRequestHeader('project_id', GCM_PROJECT_ID); var payload = { 'operation': 'add', 'notification_key_name': username, 'registration_ids': [gcmId] }; xhr.onloadend = function() { if (xhr.status != 200) { reject(); } var obj = JSON.parse(xhr.responseText); var key = obj && obj.notification_key; if (!key) { reject(); } console.log('gcm notification key POST: ' + key); chrome.storage.local.set({gcmNotificationKey: key}); resolve(key); }; xhr.send(JSON.stringify(payload)); }); }); }).catch(function() { // Couldn't obtain a GCM ID. Ignore and fallback to polling. }); }); } /** * Returns a promise resolving to either a cached or new GCM registration ID. * Rejects if registration fails. * @return {Promise} A Promise that resolves to a GCM registration ID. */ function getGcmRegistrationId() { return fillFromChromeLocalStorage({gcmRegistrationId: undefined}) .then(function(items) { if (items.gcmRegistrationId) { console.log('Reused gcm registration id from storage.'); return Promise.resolve(items.gcmRegistrationId); } return new Promise(function(resolve, reject) { instrumented.gcm.register([GCM_PROJECT_ID], function(registrationId) { console.log('gcm.register(): ' + registrationId); if (registrationId) { chrome.storage.local.set({gcmRegistrationId: registrationId}); resolve(registrationId); } else { reject(); } }); }); }); } /** * Unregisters from GCM if previously registered. */ function unregisterFromGcm() { fillFromChromeLocalStorage({gcmRegistrationId: undefined}) .then(function(items) { if (items.gcmRegistrationId) { console.log('Unregistering from gcm.'); instrumented.gcm.unregister(function() { if (!chrome.runtime.lastError) { chrome.storage.local.remove( ['gcmNotificationKey', 'gcmRegistrationId']); } }); } }); } /** * Polls the optin state. * Sometimes we get the response to the opted in result too soon during * push messaging. We'll recheck the optin state a few times before giving up. */ function pollOptedInWithRecheck() { /** * Cleans up any state used to recheck the opt-in poll. */ function clearPollingState() { localStorage.removeItem('optedInCheckCount'); optInRecheckAttempts.stop(); } if (localStorage.optedInCheckCount === undefined) { localStorage.optedInCheckCount = 0; optInRecheckAttempts.start(); } console.log(new Date() + ' checkOptedIn Attempt ' + localStorage.optedInCheckCount); requestAndUpdateOptedIn().then(function(optedIn) { if (optedIn) { clearPollingState(); return Promise.resolve(); } else { // If we're not opted in, reject to retry. return Promise.reject(); } }).catch(function() { if (localStorage.optedInCheckCount < 5) { localStorage.optedInCheckCount++; optInRecheckAttempts.scheduleRetry(); } else { clearPollingState(); } }); } instrumented.runtime.onInstalled.addListener(function(details) { console.log('onInstalled ' + JSON.stringify(details)); if (details.reason != 'chrome_update') { initialize(); } }); instrumented.runtime.onStartup.addListener(function() { console.log('onStartup'); // Show notifications received by earlier polls. Doing this as early as // possible to reduce latency of showing first notifications. This mimics how // persistent notifications will work. tasks.add(SHOW_ON_START_TASK_NAME, function() { fillFromChromeLocalStorage({ /** @type {Object} */ notificationGroups: {} }).then(function(items) { console.log('onStartup-get ' + JSON.stringify(items)); showNotificationGroups(items.notificationGroups).then(function() { chrome.storage.local.set(items); }); }); }); initialize(); }); authenticationManager.addListener(function() { console.log('signIn State Change'); onStateChange(); }); instrumented.notifications.onClicked.addListener( function(chromeNotificationId) { chrome.metricsPrivate.recordUserAction('GoogleNow.MessageClicked'); onNotificationClicked(chromeNotificationId, function(notificationDataEntry) { var actionUrls = notificationDataEntry.actionUrls; var url = actionUrls && actionUrls.messageUrl; if (url) { recordNotificationClick(notificationDataEntry.cardTypeId); } return url; }); }); instrumented.notifications.onButtonClicked.addListener( function(chromeNotificationId, buttonIndex) { chrome.metricsPrivate.recordUserAction( 'GoogleNow.ButtonClicked' + buttonIndex); onNotificationClicked(chromeNotificationId, function(notificationDataEntry) { var actionUrls = notificationDataEntry.actionUrls; var url = actionUrls.buttonUrls[buttonIndex]; if (url) { recordButtonClick(notificationDataEntry.cardTypeId, buttonIndex); } else { verify(false, 'onButtonClicked: no url for a button'); console.log( 'buttonIndex=' + buttonIndex + ' ' + 'chromeNotificationId=' + chromeNotificationId + ' ' + 'notificationDataEntry=' + JSON.stringify(notificationDataEntry)); } return url; }); }); instrumented.notifications.onClosed.addListener(onNotificationClosed); instrumented.notifications.onPermissionLevelChanged.addListener( function(permissionLevel) { console.log('Notifications permissionLevel Change'); onStateChange(); }); instrumented.notifications.onShowSettings.addListener(function() { openUrl(SETTINGS_URL); }); // Handles state change notifications for the Google Now enabled bit. instrumented.storage.onChanged.addListener(function(changes, areaName) { if (areaName === 'local') { if ('googleNowEnabled' in changes) { onStateChange(); } } }); instrumented.gcm.onMessage.addListener(function(message) { console.log('gcm.onMessage ' + JSON.stringify(message)); if (!message || !message.data) { return; } var payload = message.data.payload; var tag = message.data.tag; if (payload.indexOf('REQUEST_CARDS') == 0) { tasks.add(ON_PUSH_MESSAGE_START_TASK_NAME, function() { // Accept promise rejection on failure since it's safer to do nothing, // preventing polling the server when the payload really didn't change. fillFromChromeLocalStorage({ lastPollNowPayloads: {}, /** @type {Object} */ notificationGroups: {} }, PromiseRejection.ALLOW).then(function(items) { if (items.lastPollNowPayloads[tag] != payload) { items.lastPollNowPayloads[tag] = payload; items.notificationGroups['PUSH' + tag] = { cards: [], nextPollTime: Date.now() }; chrome.storage.local.set({ lastPollNowPayloads: items.lastPollNowPayloads, notificationGroups: items.notificationGroups }); pollOptedInWithRecheck(); } }); }); } }); // Copyright 2013 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. 'use strict'; /** * Show/hide trigger in a card. * * @typedef {{ * showTimeSec: (string|undefined), * hideTimeSec: string * }} */ var Trigger; /** * ID of an individual (uncombined) notification. * This ID comes directly from the server. * * @typedef {string} */ var ServerNotificationId; /** * Data to build a dismissal request for a card from a specific group. * * @typedef {{ * notificationId: ServerNotificationId, * parameters: Object * }} */ var DismissalData; /** * Urls that need to be opened when clicking a notification or its buttons. * * @typedef {{ * messageUrl: (string|undefined), * buttonUrls: (Array|undefined) * }} */ var ActionUrls; /** * ID of a combined notification. * This is the ID used with chrome.notifications API. * * @typedef {string} */ var ChromeNotificationId; /** * Notification as sent by the server. * * @typedef {{ * notificationId: ServerNotificationId, * chromeNotificationId: ChromeNotificationId, * trigger: Trigger, * chromeNotificationOptions: Object, * actionUrls: (ActionUrls|undefined), * dismissal: Object, * locationBased: (boolean|undefined), * groupName: string, * cardTypeId: (number|undefined) * }} */ var ReceivedNotification; /** * Received notification in a self-sufficient form that doesn't require group's * timestamp to calculate show and hide times. * * @typedef {{ * receivedNotification: ReceivedNotification, * showTime: (number|undefined), * hideTime: number * }} */ var UncombinedNotification; /** * Card combined from potentially multiple groups. * * @typedef {Array} */ var CombinedCard; /** * Data entry that we store for every Chrome notification. * |timestamp| is the time when corresponding Chrome notification was created or * updated last time by cardSet.update(). * * @typedef {{ * actionUrls: (ActionUrls|undefined), * cardTypeId: (number|undefined), * timestamp: number, * combinedCard: CombinedCard * }} * */ var NotificationDataEntry; /** * Names for tasks that can be created by the this file. */ var UPDATE_CARD_TASK_NAME = 'update-card'; /** * Builds an object to manage notification card set. * @return {Object} Card set interface. */ function buildCardSet() { var alarmPrefix = 'card-'; /** * Creates/updates/deletes a Chrome notification. * @param {ChromeNotificationId} chromeNotificationId chrome.notifications ID * of the card. * @param {(ReceivedNotification|undefined)} receivedNotification Google Now * card represented as a set of parameters for showing a Chrome * notification, or null if the notification needs to be deleted. * @param {function(ReceivedNotification)=} onCardShown Optional parameter * called when each card is shown. */ function updateNotification( chromeNotificationId, receivedNotification, onCardShown) { console.log( 'cardManager.updateNotification ' + chromeNotificationId + ' ' + JSON.stringify(receivedNotification)); if (!receivedNotification) { instrumented.notifications.clear(chromeNotificationId, function() {}); return; } // Try updating the notification. instrumented.notifications.update( chromeNotificationId, receivedNotification.chromeNotificationOptions, function(wasUpdated) { if (!wasUpdated) { // If the notification wasn't updated, it probably didn't exist. // Create it. console.log( 'cardManager.updateNotification ' + chromeNotificationId + ' not updated, creating instead'); instrumented.notifications.create( chromeNotificationId, receivedNotification.chromeNotificationOptions, function(newChromeNotificationId) { if (!newChromeNotificationId || chrome.runtime.lastError) { var errorMessage = chrome.runtime.lastError && chrome.runtime.lastError.message; console.error('notifications.create: ID=' + newChromeNotificationId + ', ERROR=' + errorMessage); return; } if (onCardShown !== undefined) onCardShown(receivedNotification); }); } }); } /** * Iterates uncombined notifications in a combined card, determining for * each whether it's visible at the specified moment. * @param {CombinedCard} combinedCard The combined card in question. * @param {number} timestamp Time for which to calculate visibility. * @param {function(UncombinedNotification, boolean)} callback Function * invoked for every uncombined notification in |combinedCard|. * The boolean parameter indicates whether the uncombined notification is * visible at |timestamp|. */ function iterateUncombinedNotifications(combinedCard, timestamp, callback) { for (var i = 0; i != combinedCard.length; ++i) { var uncombinedNotification = combinedCard[i]; var shouldShow = !uncombinedNotification.showTime || uncombinedNotification.showTime <= timestamp; var shouldHide = uncombinedNotification.hideTime <= timestamp; callback(uncombinedNotification, shouldShow && !shouldHide); } } /** * Refreshes (shows/hides) the notification corresponding to the combined card * based on the current time and show-hide intervals in the combined card. * @param {ChromeNotificationId} chromeNotificationId chrome.notifications ID * of the card. * @param {CombinedCard} combinedCard Combined cards with * |chromeNotificationId|. * @param {Object} notificationGroups Map from group * name to group information. * @param {function(ReceivedNotification)=} onCardShown Optional parameter * called when each card is shown. * @return {(NotificationDataEntry|undefined)} Notification data entry for * this card. It's 'undefined' if the card's life is over. */ function update( chromeNotificationId, combinedCard, notificationGroups, onCardShown) { console.log('cardManager.update ' + JSON.stringify(combinedCard)); chrome.alarms.clear(alarmPrefix + chromeNotificationId); var now = Date.now(); /** @type {(UncombinedNotification|undefined)} */ var winningCard = undefined; // Next moment of time when winning notification selection algotithm can // potentially return a different notification. /** @type {?number} */ var nextEventTime = null; // Find a winning uncombined notification: a highest-priority notification // that needs to be shown now. iterateUncombinedNotifications( combinedCard, now, function(uncombinedCard, visible) { // If the uncombined notification is visible now and set the winning // card to it if its priority is higher. if (visible) { if (!winningCard || uncombinedCard.receivedNotification.chromeNotificationOptions. priority > winningCard.receivedNotification.chromeNotificationOptions. priority) { winningCard = uncombinedCard; } } // Next event time is the closest hide or show event. if (uncombinedCard.showTime && uncombinedCard.showTime > now) { if (!nextEventTime || nextEventTime > uncombinedCard.showTime) nextEventTime = uncombinedCard.showTime; } if (uncombinedCard.hideTime > now) { if (!nextEventTime || nextEventTime > uncombinedCard.hideTime) nextEventTime = uncombinedCard.hideTime; } }); // Show/hide the winning card. updateNotification( chromeNotificationId, winningCard && winningCard.receivedNotification, onCardShown); if (nextEventTime) { // If we expect more events, create an alarm for the next one. chrome.alarms.create( alarmPrefix + chromeNotificationId, {when: nextEventTime}); // The trick with stringify/parse is to create a copy of action URLs, // otherwise notifications data with 2 pointers to the same object won't // be stored correctly to chrome.storage. var winningActionUrls = winningCard && winningCard.receivedNotification.actionUrls && JSON.parse(JSON.stringify( winningCard.receivedNotification.actionUrls)); var winningCardTypeId = winningCard && winningCard.receivedNotification.cardTypeId; return { actionUrls: winningActionUrls, cardTypeId: winningCardTypeId, timestamp: now, combinedCard: combinedCard }; } else { // If there are no more events, we are done with this card. Note that all // received notifications have hideTime. verify(!winningCard, 'No events left, but card is shown.'); clearCardFromGroups(chromeNotificationId, notificationGroups); return undefined; } } /** * Removes dismissed part of a card and refreshes the card. Returns remaining * dismissals for the combined card and updated notification data. * @param {ChromeNotificationId} chromeNotificationId chrome.notifications ID * of the card. * @param {NotificationDataEntry} notificationData Stored notification entry * for this card. * @param {Object} notificationGroups Map from group * name to group information. * @return {{ * dismissals: Array, * notificationData: (NotificationDataEntry|undefined) * }} */ function onDismissal( chromeNotificationId, notificationData, notificationGroups) { /** @type {Array} */ var dismissals = []; /** @type {Array} */ var newCombinedCard = []; // Determine which parts of the combined card need to be dismissed or to be // preserved. We dismiss parts that were visible at the moment when the card // was last updated. iterateUncombinedNotifications( notificationData.combinedCard, notificationData.timestamp, function(uncombinedCard, visible) { if (visible) { dismissals.push({ notificationId: uncombinedCard.receivedNotification.notificationId, parameters: uncombinedCard.receivedNotification.dismissal }); } else { newCombinedCard.push(uncombinedCard); } }); return { dismissals: dismissals, notificationData: update( chromeNotificationId, newCombinedCard, notificationGroups) }; } /** * Removes card information from |notificationGroups|. * @param {ChromeNotificationId} chromeNotificationId chrome.notifications ID * of the card. * @param {Object} notificationGroups Map from group * name to group information. */ function clearCardFromGroups(chromeNotificationId, notificationGroups) { console.log('cardManager.clearCardFromGroups ' + chromeNotificationId); for (var groupName in notificationGroups) { var group = notificationGroups[groupName]; for (var i = 0; i != group.cards.length; ++i) { if (group.cards[i].chromeNotificationId == chromeNotificationId) { group.cards.splice(i, 1); break; } } } } instrumented.alarms.onAlarm.addListener(function(alarm) { console.log('cardManager.onAlarm ' + JSON.stringify(alarm)); if (alarm.name.indexOf(alarmPrefix) == 0) { // Alarm to show the card. tasks.add(UPDATE_CARD_TASK_NAME, function() { /** @type {ChromeNotificationId} */ var chromeNotificationId = alarm.name.substring(alarmPrefix.length); fillFromChromeLocalStorage({ /** @type {Object} */ notificationsData: {}, /** @type {Object} */ notificationGroups: {} }).then(function(items) { console.log('cardManager.onAlarm.get ' + JSON.stringify(items)); var combinedCard = (items.notificationsData[chromeNotificationId] && items.notificationsData[chromeNotificationId].combinedCard) || []; var cardShownCallback = undefined; if (localStorage['explanatoryCardsShown'] < EXPLANATORY_CARDS_LINK_THRESHOLD) { cardShownCallback = countExplanatoryCard; } items.notificationsData[chromeNotificationId] = update( chromeNotificationId, combinedCard, items.notificationGroups, cardShownCallback); chrome.storage.local.set(items); }); }); } }); return { update: update, onDismissal: onDismissal }; } // Copyright (c) 2013 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. 'use strict'; /** * @fileoverview Utility objects and functions for Google Now extension. * Most important entities here: * (1) 'wrapper' is a module used to add error handling and other services to * callbacks for HTML and Chrome functions and Chrome event listeners. * Chrome invokes extension code through event listeners. Once entered via * an event listener, the extension may call a Chrome/HTML API method * passing a callback (and so forth), and that callback must occur later, * otherwise, we generate an error. Chrome may unload event pages waiting * for an event. When the event fires, Chrome will reload the event page. We * don't require event listeners to fire because they are generally not * predictable (like a button clicked event). * (2) Task Manager (built with buildTaskManager() call) provides controlling * mutually excluding chains of callbacks called tasks. Task Manager uses * WrapperPlugins to add instrumentation code to 'wrapper' to determine * when a task completes. */ // TODO(vadimt): Use server name in the manifest. /** * Notification server URL. */ var NOTIFICATION_CARDS_URL = 'https://www.googleapis.com/chromenow/v1'; /** * Returns true if debug mode is enabled. * localStorage returns items as strings, which means if we store a boolean, * it returns a string. Use this function to compare against true. * @return {boolean} Whether debug mode is enabled. */ function isInDebugMode() { return localStorage.debug_mode === 'true'; } /** * Initializes for debug or release modes of operation. */ function initializeDebug() { if (isInDebugMode()) { NOTIFICATION_CARDS_URL = localStorage['server_url'] || NOTIFICATION_CARDS_URL; } } initializeDebug(); /** * Conditionally allow console.log output based off of the debug mode. */ console.log = function() { var originalConsoleLog = console.log; return function() { if (isInDebugMode()) { originalConsoleLog.apply(console, arguments); } }; }(); /** * Explanation Card Storage. */ if (localStorage['explanatoryCardsShown'] === undefined) localStorage['explanatoryCardsShown'] = 0; /** * Location Card Count Cleanup. */ if (localStorage.locationCardsShown !== undefined) localStorage.removeItem('locationCardsShown'); /** * Builds an error object with a message that may be sent to the server. * @param {string} message Error message. This message may be sent to the * server. * @return {Error} Error object. */ function buildErrorWithMessageForServer(message) { var error = new Error(message); error.canSendMessageToServer = true; return error; } /** * Checks for internal errors. * @param {boolean} condition Condition that must be true. * @param {string} message Diagnostic message for the case when the condition is * false. */ function verify(condition, message) { if (!condition) throw buildErrorWithMessageForServer('ASSERT: ' + message); } /** * Builds a request to the notification server. * @param {string} method Request method. * @param {string} handlerName Server handler to send the request to. * @param {string=} opt_contentType Value for the Content-type header. * @return {XMLHttpRequest} Server request. */ function buildServerRequest(method, handlerName, opt_contentType) { var request = new XMLHttpRequest(); request.responseType = 'text'; request.open(method, NOTIFICATION_CARDS_URL + '/' + handlerName, true); if (opt_contentType) request.setRequestHeader('Content-type', opt_contentType); return request; } /** * Sends an error report to the server. * @param {Error} error Error to send. */ function sendErrorReport(error) { // Don't remove 'error.stack.replace' below! var filteredStack = error.canSendMessageToServer ? error.stack : error.stack.replace(/.*\n/, '(message removed)\n'); var file; var line; var topFrameLineMatch = filteredStack.match(/\n at .*\n/); var topFrame = topFrameLineMatch && topFrameLineMatch[0]; if (topFrame) { // Examples of a frame: // 1. '\n at someFunction (chrome-extension:// // pafkbggdmjlpgkdkcbjmhmfcdpncadgh/background.js:915:15)\n' // 2. '\n at chrome-extension://pafkbggdmjlpgkdkcbjmhmfcdpncadgh/ // utility.js:269:18\n' // 3. '\n at Function.target.(anonymous function) (extensions:: // SafeBuiltins:19:14)\n' // 4. '\n at Event.dispatchToListener (event_bindings:382:22)\n' var errorLocation; // Find the the parentheses at the end of the line, if any. var parenthesesMatch = topFrame.match(/\(.*\)\n/); if (parenthesesMatch && parenthesesMatch[0]) { errorLocation = parenthesesMatch[0].substring(1, parenthesesMatch[0].length - 2); } else { errorLocation = topFrame; } var topFrameElements = errorLocation.split(':'); // topFrameElements is an array that ends like: // [N-3] //pafkbggdmjlpgkdkcbjmhmfcdpncadgh/utility.js // [N-2] 308 // [N-1] 19 if (topFrameElements.length >= 3) { file = topFrameElements[topFrameElements.length - 3]; line = topFrameElements[topFrameElements.length - 2]; } } var errorText = error.name; if (error.canSendMessageToServer) errorText = errorText + ': ' + error.message; var errorObject = { message: errorText, file: file, line: line, trace: filteredStack }; // We use relatively direct calls here because the instrumentation may be in // a bad state. Wrappers and promises should not be involved in the reporting. var request = buildServerRequest('POST', 'jserrors', 'application/json'); request.onloadend = function(event) { console.log('sendErrorReport status: ' + request.status); }; chrome.identity.getAuthToken({interactive: false}, function(token) { if (token) { request.setRequestHeader('Authorization', 'Bearer ' + token); request.send(JSON.stringify(errorObject)); } }); } // Limiting 1 error report per background page load. var errorReported = false; /** * Reports an error to the server and the user, as appropriate. * @param {Error} error Error to report. */ function reportError(error) { var message = 'Critical error:\n' + error.stack; if (isInDebugMode()) console.error(message); if (!errorReported) { errorReported = true; chrome.metricsPrivate.getIsCrashReportingEnabled(function(isEnabled) { if (isEnabled) sendErrorReport(error); if (isInDebugMode()) alert(message); }); } } // Partial mirror of chrome.* for all instrumented functions. var instrumented = {}; /** * Wrapper plugin. These plugins extend instrumentation added by * wrapper.wrapCallback by adding code that executes before and after the call * to the original callback provided by the extension. * * @typedef {{ * prologue: function (), * epilogue: function () * }} */ var WrapperPlugin; /** * Wrapper for callbacks. Used to add error handling and other services to * callbacks for HTML and Chrome functions and events. */ var wrapper = (function() { /** * Factory for wrapper plugins. If specified, it's used to generate an * instance of WrapperPlugin each time we wrap a callback (which corresponds * to addListener call for Chrome events, and to every API call that specifies * a callback). WrapperPlugin's lifetime ends when the callback for which it * was generated, exits. It's possible to have several instances of * WrapperPlugin at the same time. * An instance of WrapperPlugin can have state that can be shared by its * constructor, prologue() and epilogue(). Also WrapperPlugins can change * state of other objects, for example, to do refcounting. * @type {?function(): WrapperPlugin} */ var wrapperPluginFactory = null; /** * Registers a wrapper plugin factory. * @param {function(): WrapperPlugin} factory Wrapper plugin factory. */ function registerWrapperPluginFactory(factory) { if (wrapperPluginFactory) { reportError(buildErrorWithMessageForServer( 'registerWrapperPluginFactory: factory is already registered.')); } wrapperPluginFactory = factory; } /** * True if currently executed code runs in a callback or event handler that * was instrumented by wrapper.wrapCallback() call. * @type {boolean} */ var isInWrappedCallback = false; /** * Required callbacks that are not yet called. Includes both task and non-task * callbacks. This is a map from unique callback id to the stack at the moment * when the callback was wrapped. This stack identifies the callback. * Used only for diagnostics. * @type {Object} */ var pendingCallbacks = {}; /** * Unique ID of the next callback. * @type {number} */ var nextCallbackId = 0; /** * Gets diagnostic string with the status of the wrapper. * @return {string} Diagnostic string. */ function debugGetStateString() { return 'pendingCallbacks @' + Date.now() + ' = ' + JSON.stringify(pendingCallbacks); } /** * Checks that we run in a wrapped callback. */ function checkInWrappedCallback() { if (!isInWrappedCallback) { reportError(buildErrorWithMessageForServer( 'Not in instrumented callback')); } } /** * Adds error processing to an API callback. * @param {Function} callback Callback to instrument. * @param {boolean=} opt_isEventListener True if the callback is a listener to * a Chrome API event. * @return {Function} Instrumented callback. */ function wrapCallback(callback, opt_isEventListener) { var callbackId = nextCallbackId++; if (!opt_isEventListener) { checkInWrappedCallback(); pendingCallbacks[callbackId] = new Error().stack + ' @' + Date.now(); } // wrapperPluginFactory may be null before task manager is built, and in // tests. var wrapperPluginInstance = wrapperPluginFactory && wrapperPluginFactory(); return function() { // This is the wrapper for the callback. try { verify(!isInWrappedCallback, 'Re-entering instrumented callback'); isInWrappedCallback = true; if (!opt_isEventListener) delete pendingCallbacks[callbackId]; if (wrapperPluginInstance) wrapperPluginInstance.prologue(); // Call the original callback. var returnValue = callback.apply(null, arguments); if (wrapperPluginInstance) wrapperPluginInstance.epilogue(); verify(isInWrappedCallback, 'Instrumented callback is not instrumented upon exit'); isInWrappedCallback = false; return returnValue; } catch (error) { reportError(error); } }; } /** * Returns an instrumented function. * @param {!Array} functionIdentifierParts Path to the chrome.* * function. * @param {string} functionName Name of the chrome API function. * @param {number} callbackParameter Index of the callback parameter to this * API function. * @return {Function} An instrumented function. */ function createInstrumentedFunction( functionIdentifierParts, functionName, callbackParameter) { return function() { // This is the wrapper for the API function. Pass the wrapped callback to // the original function. var callback = arguments[callbackParameter]; if (typeof callback != 'function') { reportError(buildErrorWithMessageForServer( 'Argument ' + callbackParameter + ' of ' + functionIdentifierParts.join('.') + '.' + functionName + ' is not a function')); } arguments[callbackParameter] = wrapCallback( callback, functionName == 'addListener'); var chromeContainer = chrome; functionIdentifierParts.forEach(function(fragment) { chromeContainer = chromeContainer[fragment]; }); return chromeContainer[functionName]. apply(chromeContainer, arguments); }; } /** * Instruments an API function to add error processing to its user * code-provided callback. * @param {string} functionIdentifier Full identifier of the function without * the 'chrome.' portion. * @param {number} callbackParameter Index of the callback parameter to this * API function. */ function instrumentChromeApiFunction(functionIdentifier, callbackParameter) { var functionIdentifierParts = functionIdentifier.split('.'); var functionName = functionIdentifierParts.pop(); var chromeContainer = chrome; var instrumentedContainer = instrumented; functionIdentifierParts.forEach(function(fragment) { chromeContainer = chromeContainer[fragment]; if (!chromeContainer) { reportError(buildErrorWithMessageForServer( 'Cannot instrument ' + functionIdentifier)); } if (!(fragment in instrumentedContainer)) instrumentedContainer[fragment] = {}; instrumentedContainer = instrumentedContainer[fragment]; }); var targetFunction = chromeContainer[functionName]; if (!targetFunction) { reportError(buildErrorWithMessageForServer( 'Cannot instrument ' + functionIdentifier)); } instrumentedContainer[functionName] = createInstrumentedFunction( functionIdentifierParts, functionName, callbackParameter); } instrumentChromeApiFunction('runtime.onSuspend.addListener', 0); instrumented.runtime.onSuspend.addListener(function() { var stringifiedPendingCallbacks = JSON.stringify(pendingCallbacks); verify( stringifiedPendingCallbacks == '{}', 'Pending callbacks when unloading event page @' + Date.now() + ':' + stringifiedPendingCallbacks); }); return { wrapCallback: wrapCallback, instrumentChromeApiFunction: instrumentChromeApiFunction, registerWrapperPluginFactory: registerWrapperPluginFactory, checkInWrappedCallback: checkInWrappedCallback, debugGetStateString: debugGetStateString }; })(); wrapper.instrumentChromeApiFunction('alarms.get', 1); wrapper.instrumentChromeApiFunction('alarms.onAlarm.addListener', 0); wrapper.instrumentChromeApiFunction('identity.getAuthToken', 1); wrapper.instrumentChromeApiFunction('identity.onSignInChanged.addListener', 0); wrapper.instrumentChromeApiFunction('identity.removeCachedAuthToken', 1); wrapper.instrumentChromeApiFunction('storage.local.get', 1); wrapper.instrumentChromeApiFunction('webstorePrivate.getBrowserLogin', 0); /** * Promise adapter for all JS promises to the task manager. */ function registerPromiseAdapter() { var originalThen = Promise.prototype.then; var originalCatch = Promise.prototype.catch; /** * Takes a promise and adds the callback tracker to it. * @param {object} promise Promise that receives the callback tracker. */ function instrumentPromise(promise) { if (promise.__tracker === undefined) { promise.__tracker = createPromiseCallbackTracker(promise); } } Promise.prototype.then = function(onResolved, onRejected) { instrumentPromise(this); return this.__tracker.handleThen(onResolved, onRejected); }; Promise.prototype.catch = function(onRejected) { instrumentPromise(this); return this.__tracker.handleCatch(onRejected); }; /** * Promise Callback Tracker. * Handles coordination of 'then' and 'catch' callbacks in a task * manager compatible way. For an individual promise, either the 'then' * arguments or the 'catch' arguments will be processed, never both. * * Example: * var p = new Promise([Function]); * p.then([ThenA]); * p.then([ThenB]); * p.catch([CatchA]); * On resolution, [ThenA] and [ThenB] will be used. [CatchA] is discarded. * On rejection, vice versa. * * Clarification: * Chained promises create a new promise that is tracked separately from * the originaing promise, as the example below demonstrates: * * var p = new Promise([Function])); * p.then([ThenA]).then([ThenB]).catch([CatchA]); * ^ ^ ^ * | | + Returns a new promise. * | + Returns a new promise. * + Returns a new promise. * * Four promises exist in the above statement, each with its own * resolution and rejection state. However, by default, this state is * chained to the previous promise's resolution or rejection * state. * * If p resolves, then the 'then' calls will execute until all the 'then' * clauses are executed. If the result of either [ThenA] or [ThenB] is a * promise, then that execution state will guide the remaining chain. * Similarly, if [CatchA] returns a promise, it can also guide the * remaining chain. In this specific case, the chain ends, so there * is nothing left to do. * @param {object} promise Promise being tracked. * @return {object} A promise callback tracker. */ function createPromiseCallbackTracker(promise) { /** * Callback Tracker. Holds an array of callbacks created for this promise. * The indirection allows quick checks against the array and clearing the * array without ugly splicing and copying. * @typedef {{ * callback: array= * }} */ var CallbackTracker; /** @type {CallbackTracker} */ var thenTracker = {callbacks: []}; /** @type {CallbackTracker} */ var catchTracker = {callbacks: []}; /** * Returns true if the specified value is callable. * @param {*} value Value to check. * @return {boolean} True if the value is a callable. */ function isCallable(value) { return typeof value === 'function'; } /** * Takes a tracker and clears its callbacks in a manner consistent with * the task manager. For the task manager, it also calls all callbacks * by no-oping them first and then calling them. * @param {CallbackTracker} tracker Tracker to clear. */ function clearTracker(tracker) { if (tracker.callbacks) { var callbacksToClear = tracker.callbacks; // No-ops all callbacks of this type. tracker.callbacks = undefined; // Do not wrap the promise then argument! // It will call wrapped callbacks. originalThen.call(Promise.resolve(), function() { for (var i = 0; i < callbacksToClear.length; i++) { callbacksToClear[i](); } }); } } /** * Takes the argument to a 'then' or 'catch' function and applies * a wrapping to callables consistent to ECMA promises. * @param {*} maybeCallback Argument to 'then' or 'catch'. * @param {CallbackTracker} sameTracker Tracker for the call type. * Example: If the argument is from a 'then' call, use thenTracker. * @param {CallbackTracker} otherTracker Tracker for the opposing call type. * Example: If the argument is from a 'then' call, use catchTracker. * @return {*} Consumable argument with necessary wrapping applied. */ function registerAndWrapMaybeCallback( maybeCallback, sameTracker, otherTracker) { // If sameTracker.callbacks is undefined, we've reached an ending state // that means this callback will never be called back. // We will still forward this call on to let the promise system // handle further processing, but since this promise is in an ending state // we can be confident it will never be called back. if (isCallable(maybeCallback) && !maybeCallback.wrappedByPromiseTracker && sameTracker.callbacks) { var handler = wrapper.wrapCallback(function() { if (sameTracker.callbacks) { clearTracker(otherTracker); return maybeCallback.apply(null, arguments); } }, false); // Harmony promises' catch calls will call into handleThen, // double-wrapping all catch callbacks. Regular promise catch calls do // not call into handleThen. Setting an attribute on the wrapped // function is compatible with both promise implementations. handler.wrappedByPromiseTracker = true; sameTracker.callbacks.push(handler); return handler; } else { return maybeCallback; } } /** * Tracks then calls equivalent to Promise.prototype.then. * @param {*} onResolved Argument to use if the promise is resolved. * @param {*} onRejected Argument to use if the promise is rejected. * @return {object} Promise resulting from the 'then' call. */ function handleThen(onResolved, onRejected) { var resolutionHandler = registerAndWrapMaybeCallback(onResolved, thenTracker, catchTracker); var rejectionHandler = registerAndWrapMaybeCallback(onRejected, catchTracker, thenTracker); return originalThen.call(promise, resolutionHandler, rejectionHandler); } /** * Tracks then calls equivalent to Promise.prototype.catch. * @param {*} onRejected Argument to use if the promise is rejected. * @return {object} Promise resulting from the 'catch' call. */ function handleCatch(onRejected) { var rejectionHandler = registerAndWrapMaybeCallback(onRejected, catchTracker, thenTracker); return originalCatch.call(promise, rejectionHandler); } // Register at least one resolve and reject callback so we always receive // a callback to update the task manager and clear the callbacks // that will never occur. // // The then form is used to avoid reentrancy by handleCatch, // which ends up calling handleThen. handleThen(function() {}, function() {}); return { handleThen: handleThen, handleCatch: handleCatch }; } } registerPromiseAdapter(); /** * Control promise rejection. * @enum {number} */ var PromiseRejection = { /** Disallow promise rejection */ DISALLOW: 0, /** Allow promise rejection */ ALLOW: 1 }; /** * Provides the promise equivalent of instrumented.storage.local.get. * @param {Object} defaultStorageObject Default storage object to fill. * @param {PromiseRejection=} opt_allowPromiseRejection If * PromiseRejection.ALLOW, allow promise rejection on errors, otherwise the * default storage object is resolved. * @return {Promise} A promise that fills the default storage object. On * failure, if promise rejection is allowed, the promise is rejected, * otherwise it is resolved to the default storage object. */ function fillFromChromeLocalStorage( defaultStorageObject, opt_allowPromiseRejection) { return new Promise(function(resolve, reject) { // We have to create a keys array because keys with a default value // of undefined will cause that key to not be looked up! var keysToGet = []; for (var key in defaultStorageObject) { keysToGet.push(key); } instrumented.storage.local.get(keysToGet, function(items) { if (items) { // Merge the result with the default storage object to ensure all keys // requested have either the default value or the retrieved storage // value. var result = {}; for (var key in defaultStorageObject) { result[key] = (key in items) ? items[key] : defaultStorageObject[key]; } resolve(result); } else if (opt_allowPromiseRejection === PromiseRejection.ALLOW) { reject(); } else { resolve(defaultStorageObject); } }); }); } /** * Builds the object to manage tasks (mutually exclusive chains of events). * @param {function(string, string): boolean} areConflicting Function that * checks if a new task can't be added to a task queue that contains an * existing task. * @return {Object} Task manager interface. */ function buildTaskManager(areConflicting) { /** * Queue of scheduled tasks. The first element, if present, corresponds to the * currently running task. * @type {Array>} */ var queue = []; /** * Count of unfinished callbacks of the current task. * @type {number} */ var taskPendingCallbackCount = 0; /** * True if currently executed code is a part of a task. * @type {boolean} */ var isInTask = false; /** * Starts the first queued task. */ function startFirst() { verify(queue.length >= 1, 'startFirst: queue is empty'); verify(!isInTask, 'startFirst: already in task'); isInTask = true; // Start the oldest queued task, but don't remove it from the queue. verify( taskPendingCallbackCount == 0, 'tasks.startFirst: still have pending task callbacks: ' + taskPendingCallbackCount + ', queue = ' + JSON.stringify(queue) + ', ' + wrapper.debugGetStateString()); var entry = queue[0]; console.log('Starting task ' + entry.name); entry.task(); verify(isInTask, 'startFirst: not in task at exit'); isInTask = false; if (taskPendingCallbackCount == 0) finish(); } /** * Checks if a new task can be added to the task queue. * @param {string} taskName Name of the new task. * @return {boolean} Whether the new task can be added. */ function canQueue(taskName) { for (var i = 0; i < queue.length; ++i) { if (areConflicting(taskName, queue[i].name)) { console.log('Conflict: new=' + taskName + ', scheduled=' + queue[i].name); return false; } } return true; } /** * Adds a new task. If another task is not running, runs the task immediately. * If any task in the queue is not compatible with the task, ignores the new * task. Otherwise, stores the task for future execution. * @param {string} taskName Name of the task. * @param {function()} task Function to run. */ function add(taskName, task) { wrapper.checkInWrappedCallback(); console.log('Adding task ' + taskName); if (!canQueue(taskName)) return; queue.push({name: taskName, task: task}); if (queue.length == 1) { startFirst(); } } /** * Completes the current task and starts the next queued task if available. */ function finish() { verify(queue.length >= 1, 'tasks.finish: The task queue is empty'); console.log('Finishing task ' + queue[0].name); queue.shift(); if (queue.length >= 1) startFirst(); } instrumented.runtime.onSuspend.addListener(function() { verify( queue.length == 0, 'Incomplete task when unloading event page,' + ' queue = ' + JSON.stringify(queue) + ', ' + wrapper.debugGetStateString()); }); /** * Wrapper plugin for tasks. * @constructor */ function TasksWrapperPlugin() { this.isTaskCallback = isInTask; if (this.isTaskCallback) ++taskPendingCallbackCount; } TasksWrapperPlugin.prototype = { /** * Plugin code to be executed before invoking the original callback. */ prologue: function() { if (this.isTaskCallback) { verify(!isInTask, 'TasksWrapperPlugin.prologue: already in task'); isInTask = true; } }, /** * Plugin code to be executed after invoking the original callback. */ epilogue: function() { if (this.isTaskCallback) { verify(isInTask, 'TasksWrapperPlugin.epilogue: not in task at exit'); isInTask = false; if (--taskPendingCallbackCount == 0) finish(); } } }; wrapper.registerWrapperPluginFactory(function() { return new TasksWrapperPlugin(); }); return { add: add }; } /** * Builds an object to manage retrying activities with exponential backoff. * @param {string} name Name of this attempt manager. * @param {function()} attempt Activity that the manager retries until it * calls 'stop' method. * @param {number} initialDelaySeconds Default first delay until first retry. * @param {number} maximumDelaySeconds Maximum delay between retries. * @return {Object} Attempt manager interface. */ function buildAttemptManager( name, attempt, initialDelaySeconds, maximumDelaySeconds) { var alarmName = 'attempt-scheduler-' + name; var currentDelayStorageKey = 'current-delay-' + name; /** * Creates an alarm for the next attempt. The alarm is repeating for the case * when the next attempt crashes before registering next alarm. * @param {number} delaySeconds Delay until next retry. */ function createAlarm(delaySeconds) { var alarmInfo = { delayInMinutes: delaySeconds / 60, periodInMinutes: maximumDelaySeconds / 60 }; chrome.alarms.create(alarmName, alarmInfo); } /** * Indicates if this attempt manager has started. * @param {function(boolean)} callback The function's boolean parameter is * true if the attempt manager has started, false otherwise. */ function isRunning(callback) { instrumented.alarms.get(alarmName, function(alarmInfo) { callback(!!alarmInfo); }); } /** * Schedules the alarm with a random factor to reduce the chance that all * clients will fire their timers at the same time. * @param {number} durationSeconds Number of seconds before firing the alarm. */ function scheduleAlarm(durationSeconds) { durationSeconds = Math.min(durationSeconds, maximumDelaySeconds); var randomizedRetryDuration = durationSeconds * (1 + 0.2 * Math.random()); createAlarm(randomizedRetryDuration); var items = {}; items[currentDelayStorageKey] = randomizedRetryDuration; chrome.storage.local.set(items); } /** * Starts repeated attempts. * @param {number=} opt_firstDelaySeconds Time until the first attempt, if * specified. Otherwise, initialDelaySeconds will be used for the first * attempt. */ function start(opt_firstDelaySeconds) { if (opt_firstDelaySeconds) { createAlarm(opt_firstDelaySeconds); chrome.storage.local.remove(currentDelayStorageKey); } else { scheduleAlarm(initialDelaySeconds); } } /** * Stops repeated attempts. */ function stop() { chrome.alarms.clear(alarmName); chrome.storage.local.remove(currentDelayStorageKey); } /** * Schedules an exponential backoff retry. * @return {Promise} A promise to schedule the retry. */ function scheduleRetry() { var request = {}; request[currentDelayStorageKey] = undefined; return fillFromChromeLocalStorage(request, PromiseRejection.ALLOW) .catch(function() { request[currentDelayStorageKey] = maximumDelaySeconds; return Promise.resolve(request); }) .then(function(items) { console.log('scheduleRetry-get-storage ' + JSON.stringify(items)); var retrySeconds = initialDelaySeconds; if (items[currentDelayStorageKey]) { retrySeconds = items[currentDelayStorageKey] * 2; } scheduleAlarm(retrySeconds); }); } instrumented.alarms.onAlarm.addListener(function(alarm) { if (alarm.name == alarmName) isRunning(function(running) { if (running) attempt(); }); }); return { start: start, scheduleRetry: scheduleRetry, stop: stop, isRunning: isRunning }; } // TODO(robliao): Use signed-in state change watch API when it's available. /** * Wraps chrome.identity to provide limited listening support for * the sign in state by polling periodically for the auth token. * @return {Object} The Authentication Manager interface. */ function buildAuthenticationManager() { var alarmName = 'sign-in-alarm'; /** * Gets an OAuth2 access token. * @return {Promise} A promise to get the authentication token. If there is * no token, the request is rejected. */ function getAuthToken() { return new Promise(function(resolve, reject) { instrumented.identity.getAuthToken({interactive: false}, function(token) { if (chrome.runtime.lastError || !token) { reject(); } else { resolve(token); } }); }); } /** * Determines the active account's login (username). * @return {Promise} A promise to determine the current account's login. */ function getLogin() { return new Promise(function(resolve) { instrumented.webstorePrivate.getBrowserLogin(function(accountInfo) { resolve(accountInfo.login); }); }); } /** * Determines whether there is an account attached to the profile. * @return {Promise} A promise to determine if there is an account attached * to the profile. */ function isSignedIn() { return getLogin().then(function(login) { return Promise.resolve(!!login); }); } /** * Removes the specified cached token. * @param {string} token Authentication Token to remove from the cache. * @return {Promise} A promise that resolves on completion. */ function removeToken(token) { return new Promise(function(resolve) { instrumented.identity.removeCachedAuthToken({token: token}, function() { // Let Chrome know about a possible problem with the token. getAuthToken(); resolve(); }); }); } var listeners = []; /** * Registers a listener that gets called back when the signed in state * is found to be changed. * @param {function()} callback Called when the answer to isSignedIn changes. */ function addListener(callback) { listeners.push(callback); } /** * Checks if the last signed in state matches the current one. * If it doesn't, it notifies the listeners of the change. */ function checkAndNotifyListeners() { isSignedIn().then(function(signedIn) { fillFromChromeLocalStorage({lastSignedInState: undefined}) .then(function(items) { if (items.lastSignedInState != signedIn) { chrome.storage.local.set( {lastSignedInState: signedIn}); listeners.forEach(function(callback) { callback(); }); } }); }); } instrumented.identity.onSignInChanged.addListener(function() { checkAndNotifyListeners(); }); instrumented.alarms.onAlarm.addListener(function(alarm) { if (alarm.name == alarmName) checkAndNotifyListeners(); }); // Poll for the sign in state every hour. // One hour is just an arbitrary amount of time chosen. chrome.alarms.create(alarmName, {periodInMinutes: 60}); return { addListener: addListener, getAuthToken: getAuthToken, getLogin: getLogin, isSignedIn: isSignedIn, removeToken: removeToken }; } PNG  IHDRaXIDATx^JAݒX-DD% i.b], ޒu/3;=s g"|ls~ִMB^ڃ 8`A i9Ȥ)XHH E Qd=qrvᥑRM(`>)cJ@-P B| $|i%Mgao9NQ%Mx+ٿxmagN oKq΀.e"*y3tV3\CI[yiW Ls9{L [hgM6(0wuj6rCF$=7I$h/%?b߁IENDB`PNG  IHDR00` 5PLTEEECFFCCDEDDEEsP\DCDDEE\PPh[hCEFFtQCEQCDEFDCsgshQ[gtPF\Q[ht$tRNSPPPP IDATx^RA ;݃ =bIa27ӎƭNsV׃ [(0Mlo^_. IIy/ ̅? /'t TP\Z*` kkfP^PIkA !{(_q 4ûf$nn6|&{V8I /yx񥶹7:mq<YxCN#X> srp΢ ^I&;@@Ӗ9Op^n唋m,X-PJ8{#?cwBy@8Z ^?[ȷq1V/n%{t$;?fbڇ5S RRMu\,}. ͜f++gX\iG=WTP9> RP$8~W(s]i)8=Z瓤ρx?.?tAC-H>WG59x3ߧGǕ5{#<wv)Ĝ7ھ:оթj1xw0:Uz'eI \(ƹ9XG TC<CZ?~Ԙ+i#&7 |t$&'nTPIENDB`PNG  IHDRPLTEEEEEEFCCCFCFCCCFCFEEEDtEDDQCDsP\Ph[EgDgPhCgsQ\hDE[tQtCPCt[FECFDED[\g\PQQFhF\s2%tRNS `  ```%IDATx^Hᶌ$mwww=NS/RE.Adɒ%K,Y7ߺG{󁻮i Cwmm[ffibZCo\[]T1jԕ07 h jo?A@m Hי\r\N&@p_0Uۊ;"-3S۳իf4`fde>& z\6vކ- <Œ=MЛ`g (Ag&Xsp Mp##`EǛ` pL>{<-'J3AYL]  O_CF~4|]*SytlAAOTyzg @p_ (pzD|4 @漷6V zI9K}a0ږ&mp%!7Od߿g6_ "q2>z6Tss~ȼ9-GB<|o9>; < #\itY~cp`[c֨~@.-"9W 0k@btwOC{.([qS >N#>M iabǞx~YC:_AUlnstܧ YQti+஍9OU~+h^7Uqo1Ƨe imaNӷN=G 7ίvp哾}]|@0{JjzZ 탛o{cet:= %]M`7 :xhUm@?i6hds^_oЯ<{0Mz[5knaJ?Ydɒ%K_ԅ%IENDB`// Copyright 2013 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * Displays a webview based authorization dialog. * @param {string} key A unique identifier that the caller can use to locate * the dialog window. * @param {string} url A URL that will be loaded in the webview. * @param {string} mode 'interactive' or 'silent'. The window will be displayed * if the mode is 'interactive'. */ function showAuthDialog(key, url, mode) { var options = { frame: 'none', id: key, minWidth: 1024, minHeight: 768, hidden: true }; chrome.app.window.create('scope_approval_dialog.html', options, function(win) { win.contentWindow.addEventListener('load', function(event) { var windowParam; if (mode == 'interactive') windowParam = win; win.contentWindow.loadAuthUrlAndShowWindow(url, windowParam); }); }); } chrome.identityPrivate.onWebFlowRequest.addListener(showAuthDialog); /* Copyright (c) 2013 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ body { margin: 0; padding: 0; } .titlebar { -webkit-app-region: drag; background-color: white; height: 26px; white-space: nowrap; width: 100%; } .titlebar-border { border-bottom: 1px solid #e5e5e5; } .titlebar-close-button { background-image: -webkit-image-set( url(chrome://theme/IDR_CLOSE_DIALOG) 1x, url(chrome://theme/IDR_CLOSE_DIALOG@2x) 2x); -webkit-app-region: no-drag; height: 14px; margin: 6px; position: absolute; right: 0; width: 14px; } .titlebar-close-button:active { background-image: -webkit-image-set( url(chrome://theme/IDR_CLOSE_DIALOG_P) 1x, url(chrome://theme/IDR_CLOSE_DIALOG_P@2x) 2x); } .titlebar-close-button:hover { background-image: -webkit-image-set( url(chrome://theme/IDR_CLOSE_DIALOG_H) 1x, url(chrome://theme/IDR_CLOSE_DIALOG_H@2x) 2x); } .content { height: auto; width: 100%; }
// Copyright 2013 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. var webview; /** * Points the webview to the starting URL of a scope authorization * flow, and unhides the dialog once the page has loaded. * @param {string} url The url of the authorization entry point. * @param {Object} win The dialog window that contains this page. Can * be left undefined if the caller does not want to display the * window. */ function loadAuthUrlAndShowWindow(url, win) { // Send popups from the webview to a normal browser window. webview.addEventListener('newwindow', function(e) { e.window.discard(); window.open(e.targetUrl); }); // Request a customized view from GAIA. webview.request.onBeforeSendHeaders.addListener(function(details) { headers = details.requestHeaders || []; headers.push({'name': 'X-Browser-View', 'value': 'embedded'}); return { requestHeaders: headers }; }, { urls: ['https://accounts.google.com/*'], }, ['blocking', 'requestHeaders']); if (url.toLowerCase().indexOf('https://accounts.google.com/') != 0) document.querySelector('.titlebar').classList.add('titlebar-border'); webview.src = url; if (win) { webview.addEventListener('loadstop', function() { win.show(); }); } } document.addEventListener('DOMContentLoaded', function() { webview = document.querySelector('webview'); document.querySelector('.titlebar-close-button').onclick = function() { window.close(); }; chrome.resourcesPrivate.getStrings('identity', function(strings) { document.title = strings['window-title']; }); }); // Copyright 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. chrome.app.runtime.onLaunched.addListener(function() { chrome.app.window.create( 'chrome://settings-frame/options_settings_app.html', {'id': 'settings_app', 'height': 550, 'width': 750}); }); /* Copyright 2014 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ body { background-color: #ccc; margin: 0; } viewer-toolbar { visibility: hidden; white-space: nowrap; z-index: 3; } viewer-page-indicator { visibility: hidden; z-index: 3; } viewer-progress-bar { visibility: hidden; z-index: 3; } viewer-error-screen-legacy { visibility: hidden; z-index: 2; } viewer-password-screen-legacy { visibility: hidden; z-index: 2; } #plugin { height: 100%; position: fixed; width: 100%; z-index: 1; } #sizer { position: absolute; z-index: 0; }
/* Copyright 2015 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ body { background-color: rgb(82, 86, 89); font-family: 'Roboto', 'Noto', sans-serif; margin: 0; } viewer-page-indicator { visibility: hidden; z-index: 2; } viewer-pdf-toolbar { position: fixed; width: 100%; z-index: 4; } #plugin { height: 100%; position: fixed; width: 100%; z-index: 1; } #sizer { position: absolute; z-index: 0; } @media(max-height: 250px) { viewer-pdf-toolbar { display: none; } } @media(max-height: 200px) { viewer-zoom-toolbar { display: none; } } @media(max-width: 300px) { viewer-zoom-toolbar { display: none; } }
// Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. 'use strict'; /** * Global PDFViewer object, accessible for testing. * @type Object */ var viewer; (function() { /** * Stores any pending messages received which should be passed to the * PDFViewer when it is created. * @type Array */ var pendingMessages = []; /** * Handles events that are received prior to the PDFViewer being created. * @param {Object} message A message event received. */ function handleScriptingMessage(message) { pendingMessages.push(message); } /** * Initialize the global PDFViewer and pass any outstanding messages to it. * @param {Object} browserApi An object providing an API to the browser. */ function initViewer(browserApi) { // PDFViewer will handle any messages after it is created. window.removeEventListener('message', handleScriptingMessage, false); viewer = new PDFViewer(browserApi); while (pendingMessages.length > 0) viewer.handleScriptingMessage(pendingMessages.shift()); } /** * Entrypoint for starting the PDF viewer. This function obtains the browser * API for the PDF and constructs a PDFViewer object with it. */ function main() { // Set up an event listener to catch scripting messages which are sent prior // to the PDFViewer being created. window.addEventListener('message', handleScriptingMessage, false); createBrowserApi().then(initViewer); }; main(); })(); // Copyright 2013 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. 'use strict'; /** * @return {number} Width of a scrollbar in pixels */ function getScrollbarWidth() { var div = document.createElement('div'); div.style.visibility = 'hidden'; div.style.overflow = 'scroll'; div.style.width = '50px'; div.style.height = '50px'; div.style.position = 'absolute'; document.body.appendChild(div); var result = div.offsetWidth - div.clientWidth; div.parentNode.removeChild(div); return result; } /** * Return the filename component of a URL, percent decoded if possible. * @param {string} url The URL to get the filename from. * @return {string} The filename component. */ function getFilenameFromURL(url) { // Ignore the query and fragment. var mainUrl = url.split(/#|\?/)[0]; var components = mainUrl.split(/\/|\\/); var filename = components[components.length - 1]; try { return decodeURIComponent(filename); } catch (e) { if (e instanceof URIError) return filename; throw e; } } /** * Called when navigation happens in the current tab. * @param {boolean} isInTab Indicates if the PDF viewer is displayed in a tab. * @param {boolean} isSourceFileUrl Indicates if the navigation source is a * file:// URL. * @param {string} url The url to be opened in the current tab. */ function onNavigateInCurrentTab(isInTab, isSourceFileUrl, url) { // When the PDFviewer is inside a browser tab, prefer the tabs API because // it can navigate from one file:// URL to another. if (chrome.tabs && isInTab && isSourceFileUrl) chrome.tabs.update({url: url}); else window.location.href = url; } /** * Called when navigation happens in the new tab. * @param {string} url The url to be opened in the new tab. */ function onNavigateInNewTab(url) { // Prefer the tabs API because it guarantees we can just open a new tab. // window.open doesn't have this guarantee. if (chrome.tabs) chrome.tabs.create({url: url}); else window.open(url); } /** * Whether keydown events should currently be ignored. Events are ignored when * an editable element has focus, to allow for proper editing controls. * @param {HTMLElement} activeElement The currently selected DOM node. * @return {boolean} True if keydown events should be ignored. */ function shouldIgnoreKeyEvents(activeElement) { while (activeElement.shadowRoot != null && activeElement.shadowRoot.activeElement != null) { activeElement = activeElement.shadowRoot.activeElement; } return (activeElement.isContentEditable || activeElement.tagName == 'INPUT' || activeElement.tagName == 'TEXTAREA'); } /** * The minimum number of pixels to offset the toolbar by from the bottom and * right side of the screen. */ PDFViewer.MIN_TOOLBAR_OFFSET = 15; /** * The height of the toolbar along the top of the page. The document will be * shifted down by this much in the viewport. */ PDFViewer.MATERIAL_TOOLBAR_HEIGHT = 56; /** * Minimum height for the material toolbar to show (px). Should match the media * query in index-material.css. If the window is smaller than this at load, * leave no space for the toolbar. */ PDFViewer.TOOLBAR_WINDOW_MIN_HEIGHT = 250; /** * The light-gray background color used for print preview. */ PDFViewer.LIGHT_BACKGROUND_COLOR = '0xFFCCCCCC'; /** * The dark-gray background color used for the regular viewer. */ PDFViewer.DARK_BACKGROUND_COLOR = '0xFF525659'; /** * Creates a new PDFViewer. There should only be one of these objects per * document. * @constructor * @param {!BrowserApi} browserApi An object providing an API to the browser. */ function PDFViewer(browserApi) { this.browserApi_ = browserApi; this.loadState_ = LoadState.LOADING; this.parentWindow_ = null; this.parentOrigin_ = null; this.isFormFieldFocused_ = false; this.delayedScriptingMessages_ = []; this.isPrintPreview_ = this.browserApi_.getStreamInfo().originalUrl.indexOf( 'chrome://print') == 0; this.isMaterial_ = location.pathname.substring(1) === 'index-material.html'; // The sizer element is placed behind the plugin element to cause scrollbars // to be displayed in the window. It is sized according to the document size // of the pdf and zoom level. this.sizer_ = $('sizer'); this.toolbar_ = $('toolbar'); if (!this.isMaterial_ || this.isPrintPreview_) this.pageIndicator_ = $('page-indicator'); this.progressBar_ = $('progress-bar'); this.passwordScreen_ = $('password-screen'); this.passwordScreen_.addEventListener('password-submitted', this.onPasswordSubmitted_.bind(this)); this.errorScreen_ = $('error-screen'); // Can only reload if we are in a normal tab. if (chrome.tabs && this.browserApi_.getStreamInfo().tabId != -1) { this.errorScreen_.reloadFn = function() { chrome.tabs.reload(this.browserApi_.getStreamInfo().tabId); }.bind(this); } // Create the viewport. var shortWindow = window.innerHeight < PDFViewer.TOOLBAR_WINDOW_MIN_HEIGHT; var topToolbarHeight = (this.isMaterial_ && !this.isPrintPreview_ && !shortWindow) ? PDFViewer.MATERIAL_TOOLBAR_HEIGHT : 0; this.viewport_ = new Viewport(window, this.sizer_, this.viewportChanged_.bind(this), this.beforeZoom_.bind(this), this.afterZoom_.bind(this), getScrollbarWidth(), this.browserApi_.getDefaultZoom(), topToolbarHeight); // Create the plugin object dynamically so we can set its src. The plugin // element is sized to fill the entire window and is set to be fixed // positioning, acting as a viewport. The plugin renders into this viewport // according to the scroll position of the window. this.plugin_ = document.createElement('embed'); // NOTE: The plugin's 'id' field must be set to 'plugin' since // chrome/renderer/printing/print_web_view_helper.cc actually references it. this.plugin_.id = 'plugin'; this.plugin_.type = 'application/x-google-chrome-pdf'; this.plugin_.addEventListener('message', this.handlePluginMessage_.bind(this), false); // Handle scripting messages from outside the extension that wish to interact // with it. We also send a message indicating that extension has loaded and // is ready to receive messages. window.addEventListener('message', this.handleScriptingMessage.bind(this), false); this.plugin_.setAttribute('src', this.browserApi_.getStreamInfo().originalUrl); this.plugin_.setAttribute('stream-url', this.browserApi_.getStreamInfo().streamUrl); var headers = ''; for (var header in this.browserApi_.getStreamInfo().responseHeaders) { headers += header + ': ' + this.browserApi_.getStreamInfo().responseHeaders[header] + '\n'; } this.plugin_.setAttribute('headers', headers); var backgroundColor = PDFViewer.DARK_BACKGROUND_COLOR; if (!this.isMaterial_) backgroundColor = PDFViewer.LIGHT_BACKGROUND_COLOR; this.plugin_.setAttribute('background-color', backgroundColor); this.plugin_.setAttribute('top-toolbar-height', topToolbarHeight); if (!this.browserApi_.getStreamInfo().embedded) this.plugin_.setAttribute('full-frame', ''); document.body.appendChild(this.plugin_); // Setup the button event listeners. if (!this.isMaterial_) { $('fit-to-width-button').addEventListener('click', this.viewport_.fitToWidth.bind(this.viewport_)); $('fit-to-page-button').addEventListener('click', this.viewport_.fitToPage.bind(this.viewport_)); $('zoom-in-button').addEventListener('click', this.viewport_.zoomIn.bind(this.viewport_)); $('zoom-out-button').addEventListener('click', this.viewport_.zoomOut.bind(this.viewport_)); $('save-button').addEventListener('click', this.save_.bind(this)); $('print-button').addEventListener('click', this.print_.bind(this)); } if (this.isMaterial_) { this.zoomToolbar_ = $('zoom-toolbar'); this.zoomToolbar_.addEventListener('fit-to-width', this.viewport_.fitToWidth.bind(this.viewport_)); this.zoomToolbar_.addEventListener('fit-to-page', this.fitToPage_.bind(this)); this.zoomToolbar_.addEventListener('zoom-in', this.viewport_.zoomIn.bind(this.viewport_)); this.zoomToolbar_.addEventListener('zoom-out', this.viewport_.zoomOut.bind(this.viewport_)); if (!this.isPrintPreview_) { this.materialToolbar_ = $('material-toolbar'); this.materialToolbar_.hidden = false; this.materialToolbar_.addEventListener('save', this.save_.bind(this)); this.materialToolbar_.addEventListener('print', this.print_.bind(this)); this.materialToolbar_.addEventListener('rotate-right', this.rotateClockwise_.bind(this)); this.materialToolbar_.addEventListener('rotate-left', this.rotateCounterClockwise_.bind(this)); // Must attach to mouseup on the plugin element, since it eats mousedown // and click events. this.plugin_.addEventListener('mouseup', this.materialToolbar_.hideDropdowns.bind(this.materialToolbar_)); this.materialToolbar_.docTitle = getFilenameFromURL(this.browserApi_.getStreamInfo().originalUrl); } document.body.addEventListener('change-page', function(e) { this.viewport_.goToPage(e.detail.page); }.bind(this)); this.toolbarManager_ = new ToolbarManager(window, this.materialToolbar_, this.zoomToolbar_); } // Set up the ZoomManager. this.zoomManager_ = new ZoomManager( this.viewport_, this.browserApi_.setZoom.bind(this.browserApi_), this.browserApi_.getInitialZoom()); this.browserApi_.addZoomEventListener( this.zoomManager_.onBrowserZoomChange.bind(this.zoomManager_)); // Setup the keyboard event listener. document.addEventListener('keydown', this.handleKeyEvent_.bind(this)); document.addEventListener('mousemove', this.handleMouseEvent_.bind(this)); document.addEventListener('mouseout', this.handleMouseEvent_.bind(this)); // Parse open pdf parameters. this.paramsParser_ = new OpenPDFParamsParser(this.getNamedDestination_.bind(this)); var isInTab = this.browserApi_.getStreamInfo().tabId != -1; var isSourceFileUrl = this.browserApi_.getStreamInfo().originalUrl.indexOf('file://') == 0; this.navigator_ = new Navigator(this.browserApi_.getStreamInfo().originalUrl, this.viewport_, this.paramsParser_, onNavigateInCurrentTab.bind(undefined, isInTab, isSourceFileUrl), onNavigateInNewTab); this.viewportScroller_ = new ViewportScroller(this.viewport_, this.plugin_, window); // Request translated strings. if (!this.isPrintPreview_) chrome.resourcesPrivate.getStrings('pdf', this.handleStrings_.bind(this)); } PDFViewer.prototype = { /** * @private * Handle key events. These may come from the user directly or via the * scripting API. * @param {KeyboardEvent} e the event to handle. */ handleKeyEvent_: function(e) { var position = this.viewport_.position; // Certain scroll events may be sent from outside of the extension. var fromScriptingAPI = e.fromScriptingAPI; if (shouldIgnoreKeyEvents(document.activeElement) || e.defaultPrevented) return; if (this.isMaterial_) this.toolbarManager_.hideToolbarsAfterTimeout(e); var pageUpHandler = function() { // Go to the previous page if we are fit-to-page. if (this.viewport_.fittingType == Viewport.FittingType.FIT_TO_PAGE) { this.viewport_.goToPage(this.viewport_.getMostVisiblePage() - 1); // Since we do the movement of the page. e.preventDefault(); } else if (fromScriptingAPI) { position.y -= this.viewport.size.height; this.viewport.position = position; } }.bind(this); var pageDownHandler = function() { // Go to the next page if we are fit-to-page. if (this.viewport_.fittingType == Viewport.FittingType.FIT_TO_PAGE) { this.viewport_.goToPage(this.viewport_.getMostVisiblePage() + 1); // Since we do the movement of the page. e.preventDefault(); } else if (fromScriptingAPI) { position.y += this.viewport.size.height; this.viewport.position = position; } }.bind(this); switch (e.keyCode) { case 9: // Tab key. this.toolbarManager_.showToolbarsForKeyboardNavigation(); return; case 27: // Escape key. if (this.isMaterial_ && !this.isPrintPreview_) { this.toolbarManager_.hideSingleToolbarLayer(); return; } break; // Ensure escape falls through to the print-preview handler. case 32: // Space key. if (e.shiftKey) pageUpHandler(); else pageDownHandler(); return; case 33: // Page up key. pageUpHandler(); return; case 34: // Page down key. pageDownHandler(); return; case 37: // Left arrow key. if (!(e.altKey || e.ctrlKey || e.metaKey || e.shiftKey)) { // Go to the previous page if there are no horizontal scrollbars and // no form field is focused. if (!(this.viewport_.documentHasScrollbars().horizontal || this.isFormFieldFocused_)) { this.viewport_.goToPage(this.viewport_.getMostVisiblePage() - 1); // Since we do the movement of the page. e.preventDefault(); } else if (fromScriptingAPI) { position.x -= Viewport.SCROLL_INCREMENT; this.viewport.position = position; } } return; case 38: // Up arrow key. if (fromScriptingAPI) { position.y -= Viewport.SCROLL_INCREMENT; this.viewport.position = position; } return; case 39: // Right arrow key. if (!(e.altKey || e.ctrlKey || e.metaKey || e.shiftKey)) { // Go to the next page if there are no horizontal scrollbars and no // form field is focused. if (!(this.viewport_.documentHasScrollbars().horizontal || this.isFormFieldFocused_)) { this.viewport_.goToPage(this.viewport_.getMostVisiblePage() + 1); // Since we do the movement of the page. e.preventDefault(); } else if (fromScriptingAPI) { position.x += Viewport.SCROLL_INCREMENT; this.viewport.position = position; } } return; case 40: // Down arrow key. if (fromScriptingAPI) { position.y += Viewport.SCROLL_INCREMENT; this.viewport.position = position; } return; case 65: // a key. if (e.ctrlKey || e.metaKey) { this.plugin_.postMessage({ type: 'selectAll' }); // Since we do selection ourselves. e.preventDefault(); } return; case 71: // g key. if (this.isMaterial_ && this.materialToolbar_ && (e.ctrlKey || e.metaKey)) { this.toolbarManager_.showToolbars(); this.materialToolbar_.selectPageNumber(); // To prevent the default "find text" behaviour in Chrome. e.preventDefault(); } return; case 219: // left bracket. if (e.ctrlKey) this.rotateCounterClockwise_(); return; case 221: // right bracket. if (e.ctrlKey) this.rotateClockwise_(); return; } // Give print preview a chance to handle the key event. if (!fromScriptingAPI && this.isPrintPreview_) { this.sendScriptingMessage_({ type: 'sendKeyEvent', keyEvent: SerializeKeyEvent(e) }); } else if (this.isMaterial_) { // Show toolbars as a fallback. if (!(e.shiftKey || e.ctrlKey || e.altKey)) this.toolbarManager_.showToolbars(); } }, handleMouseEvent_: function(e) { if (this.isMaterial_) { if (e.type == 'mousemove') this.toolbarManager_.handleMouseMove(e); else if (e.type == 'mouseout') this.toolbarManager_.hideToolbarsForMouseOut(); } }, /** * @private * Rotate the plugin clockwise. */ rotateClockwise_: function() { this.plugin_.postMessage({ type: 'rotateClockwise' }); }, /** * @private * Rotate the plugin counter-clockwise. */ rotateCounterClockwise_: function() { this.plugin_.postMessage({ type: 'rotateCounterclockwise' }); }, fitToPage_: function() { this.viewport_.fitToPage(); this.toolbarManager_.forceHideTopToolbar(); }, /** * @private * Notify the plugin to print. */ print_: function() { this.plugin_.postMessage({ type: 'print' }); }, /** * @private * Notify the plugin to save. */ save_: function() { this.plugin_.postMessage({ type: 'save' }); }, /** * Fetches the page number corresponding to the given named destination from * the plugin. * @param {string} name The namedDestination to fetch page number from plugin. */ getNamedDestination_: function(name) { this.plugin_.postMessage({ type: 'getNamedDestination', namedDestination: name }); }, /** * @private * Sends a 'documentLoaded' message to the PDFScriptingAPI if the document has * finished loading. */ sendDocumentLoadedMessage_: function() { if (this.loadState_ == LoadState.LOADING) return; this.sendScriptingMessage_({ type: 'documentLoaded', load_state: this.loadState_ }); }, /** * @private * Handle open pdf parameters. This function updates the viewport as per * the parameters mentioned in the url while opening pdf. The order is * important as later actions can override the effects of previous actions. * @param {Object} viewportPosition The initial position of the viewport to be * displayed. */ handleURLParams_: function(viewportPosition) { if (viewportPosition.page != undefined) this.viewport_.goToPage(viewportPosition.page); if (viewportPosition.position) { // Make sure we don't cancel effect of page parameter. this.viewport_.position = { x: this.viewport_.position.x + viewportPosition.position.x, y: this.viewport_.position.y + viewportPosition.position.y }; } if (viewportPosition.zoom) this.viewport_.setZoom(viewportPosition.zoom); }, /** * @private * Update the loading progress of the document in response to a progress * message being received from the plugin. * @param {number} progress the progress as a percentage. */ updateProgress_: function(progress) { if (this.isMaterial_) { if (this.materialToolbar_) this.materialToolbar_.loadProgress = progress; } else { this.progressBar_.progress = progress; } if (progress == -1) { // Document load failed. this.errorScreen_.show(); this.sizer_.style.display = 'none'; if (!this.isMaterial_) this.toolbar_.style.visibility = 'hidden'; if (this.passwordScreen_.active) { this.passwordScreen_.deny(); this.passwordScreen_.active = false; } this.loadState_ = LoadState.FAILED; this.sendDocumentLoadedMessage_(); } else if (progress == 100) { // Document load complete. if (this.lastViewportPosition_) this.viewport_.position = this.lastViewportPosition_; this.paramsParser_.getViewportFromUrlParams( this.browserApi_.getStreamInfo().originalUrl, this.handleURLParams_.bind(this)); this.loadState_ = LoadState.SUCCESS; this.sendDocumentLoadedMessage_(); while (this.delayedScriptingMessages_.length > 0) this.handleScriptingMessage(this.delayedScriptingMessages_.shift()); if (this.isMaterial_) this.toolbarManager_.hideToolbarsAfterTimeout(); } }, /** * @private * Load a dictionary of translated strings into the UI. Used as a callback for * chrome.resourcesPrivate. * @param {Object} strings Dictionary of translated strings */ handleStrings_: function(strings) { if (this.isMaterial_) { this.errorScreen_.strings = strings; this.passwordScreen_.strings = strings; if (this.materialToolbar_) this.materialToolbar_.strings = strings; this.zoomToolbar_.strings = strings; document.documentElement.lang = strings['language']; document.dir = strings['textdirection']; } else { this.passwordScreen_.text = strings.passwordPrompt; this.progressBar_.text = strings.pageLoading; if (!this.isPrintPreview_) this.progressBar_.style.visibility = 'visible'; this.errorScreen_.text = strings.pageLoadFailed; } }, /** * @private * An event handler for handling password-submitted events. These are fired * when an event is entered into the password screen. * @param {Object} event a password-submitted event. */ onPasswordSubmitted_: function(event) { this.plugin_.postMessage({ type: 'getPasswordComplete', password: event.detail.password }); }, /** * @private * An event handler for handling message events received from the plugin. * @param {MessageObject} message a message event. */ handlePluginMessage_: function(message) { switch (message.data.type.toString()) { case 'documentDimensions': this.documentDimensions_ = message.data; this.viewport_.setDocumentDimensions(this.documentDimensions_); // If we received the document dimensions, the password was good so we // can dismiss the password screen. if (this.passwordScreen_.active) this.passwordScreen_.accept(); if (this.pageIndicator_) this.pageIndicator_.initialFadeIn(); if (this.isMaterial_) { if (this.materialToolbar_) { this.materialToolbar_.docLength = this.documentDimensions_.pageDimensions.length; } } else { this.toolbar_.initialFadeIn(); } break; case 'email': var href = 'mailto:' + message.data.to + '?cc=' + message.data.cc + '&bcc=' + message.data.bcc + '&subject=' + message.data.subject + '&body=' + message.data.body; window.location.href = href; break; case 'getAccessibilityJSONReply': this.sendScriptingMessage_(message.data); break; case 'getPassword': // If the password screen isn't up, put it up. Otherwise we're // responding to an incorrect password so deny it. if (!this.passwordScreen_.active) this.passwordScreen_.active = true; else this.passwordScreen_.deny(); break; case 'getSelectedTextReply': this.sendScriptingMessage_(message.data); break; case 'goToPage': this.viewport_.goToPage(message.data.page); break; case 'loadProgress': this.updateProgress_(message.data.progress); break; case 'navigate': // If in print preview, always open a new tab. if (this.isPrintPreview_) this.navigator_.navigate(message.data.url, true); else this.navigator_.navigate(message.data.url, message.data.newTab); break; case 'setScrollPosition': var position = this.viewport_.position; if (message.data.x !== undefined) position.x = message.data.x; if (message.data.y !== undefined) position.y = message.data.y; this.viewport_.position = position; break; case 'cancelStreamUrl': chrome.mimeHandlerPrivate.abortStream(); break; case 'metadata': if (message.data.title) { document.title = message.data.title; } else { document.title = getFilenameFromURL(this.browserApi_.getStreamInfo().originalUrl); } this.bookmarks_ = message.data.bookmarks; if (this.isMaterial_ && this.materialToolbar_) { this.materialToolbar_.docTitle = document.title; this.materialToolbar_.bookmarks = this.bookmarks; } break; case 'setIsSelecting': this.viewportScroller_.setEnableScrolling(message.data.isSelecting); break; case 'getNamedDestinationReply': this.paramsParser_.onNamedDestinationReceived( message.data.pageNumber); break; case 'formFocusChange': this.isFormFieldFocused_ = message.data.focused; break; } }, /** * @private * A callback that's called before the zoom changes. Notify the plugin to stop * reacting to scroll events while zoom is taking place to avoid flickering. */ beforeZoom_: function() { this.plugin_.postMessage({ type: 'stopScrolling' }); }, /** * @private * A callback that's called after the zoom changes. Notify the plugin of the * zoom change and to continue reacting to scroll events. */ afterZoom_: function() { var position = this.viewport_.position; var zoom = this.viewport_.zoom; this.plugin_.postMessage({ type: 'viewport', zoom: zoom, xOffset: position.x, yOffset: position.y }); this.zoomManager_.onPdfZoomChange(); }, /** * @private * A callback that's called after the viewport changes. */ viewportChanged_: function() { if (!this.documentDimensions_) return; // Update the buttons selected. if (!this.isMaterial_) { $('fit-to-page-button').classList.remove('polymer-selected'); $('fit-to-width-button').classList.remove('polymer-selected'); if (this.viewport_.fittingType == Viewport.FittingType.FIT_TO_PAGE) { $('fit-to-page-button').classList.add('polymer-selected'); } else if (this.viewport_.fittingType == Viewport.FittingType.FIT_TO_WIDTH) { $('fit-to-width-button').classList.add('polymer-selected'); } } // Offset the toolbar position so that it doesn't move if scrollbars appear. var hasScrollbars = this.viewport_.documentHasScrollbars(); var scrollbarWidth = this.viewport_.scrollbarWidth; var verticalScrollbarWidth = hasScrollbars.vertical ? scrollbarWidth : 0; var horizontalScrollbarWidth = hasScrollbars.horizontal ? scrollbarWidth : 0; if (this.isMaterial_) { // Shift the zoom toolbar to the left by half a scrollbar width. This // gives a compromise: if there is no scrollbar visible then the toolbar // will be half a scrollbar width further left than the spec but if there // is a scrollbar visible it will be half a scrollbar width further right // than the spec. In RTL layout, the zoom toolbar is on the left side, but // the scrollbar is still on the left, so this is not necessary. if (document.dir == 'ltr') { this.zoomToolbar_.style.right = -verticalScrollbarWidth + (scrollbarWidth / 2) + 'px'; } // Having a horizontal scrollbar is much rarer so we don't offset the // toolbar from the bottom any more than what the spec says. This means // that when there is a scrollbar visible, it will be a full scrollbar // width closer to the bottom of the screen than usual, but this is ok. this.zoomToolbar_.style.bottom = -horizontalScrollbarWidth + 'px'; } else { var toolbarRight = Math.max(PDFViewer.MIN_TOOLBAR_OFFSET, scrollbarWidth); var toolbarBottom = Math.max(PDFViewer.MIN_TOOLBAR_OFFSET, scrollbarWidth); toolbarRight -= verticalScrollbarWidth; toolbarBottom -= horizontalScrollbarWidth; this.toolbar_.style.right = toolbarRight + 'px'; this.toolbar_.style.bottom = toolbarBottom + 'px'; // Hide the toolbar if it doesn't fit in the viewport. if (this.toolbar_.offsetLeft < 0 || this.toolbar_.offsetTop < 0) this.toolbar_.style.visibility = 'hidden'; else this.toolbar_.style.visibility = 'visible'; } // Update the page indicator. var visiblePage = this.viewport_.getMostVisiblePage(); if (this.materialToolbar_) this.materialToolbar_.pageNo = visiblePage + 1; // TODO(raymes): Give pageIndicator_ the same API as materialToolbar_. if (this.pageIndicator_) { this.pageIndicator_.index = visiblePage; if (this.documentDimensions_.pageDimensions.length > 1 && hasScrollbars.vertical) { this.pageIndicator_.style.visibility = 'visible'; } else { this.pageIndicator_.style.visibility = 'hidden'; } } var visiblePageDimensions = this.viewport_.getPageScreenRect(visiblePage); var size = this.viewport_.size; this.sendScriptingMessage_({ type: 'viewport', pageX: visiblePageDimensions.x, pageY: visiblePageDimensions.y, pageWidth: visiblePageDimensions.width, viewportWidth: size.width, viewportHeight: size.height }); }, /** * Handle a scripting message from outside the extension (typically sent by * PDFScriptingAPI in a page containing the extension) to interact with the * plugin. * @param {MessageObject} message the message to handle. */ handleScriptingMessage: function(message) { if (this.parentWindow_ != message.source) { this.parentWindow_ = message.source; this.parentOrigin_ = message.origin; // Ensure that we notify the embedder if the document is loaded. if (this.loadState_ != LoadState.LOADING) this.sendDocumentLoadedMessage_(); } if (this.handlePrintPreviewScriptingMessage_(message)) return; // Delay scripting messages from users of the scripting API until the // document is loaded. This simplifies use of the APIs. if (this.loadState_ != LoadState.SUCCESS) { this.delayedScriptingMessages_.push(message); return; } switch (message.data.type.toString()) { case 'getAccessibilityJSON': case 'getSelectedText': case 'print': case 'selectAll': this.plugin_.postMessage(message.data); break; } }, /** * @private * Handle scripting messages specific to print preview. * @param {MessageObject} message the message to handle. * @return {boolean} true if the message was handled, false otherwise. */ handlePrintPreviewScriptingMessage_: function(message) { if (!this.isPrintPreview_) return false; switch (message.data.type.toString()) { case 'loadPreviewPage': this.plugin_.postMessage(message.data); return true; case 'resetPrintPreviewMode': this.loadState_ = LoadState.LOADING; if (!this.inPrintPreviewMode_) { this.inPrintPreviewMode_ = true; this.viewport_.fitToPage(); } // Stash the scroll location so that it can be restored when the new // document is loaded. this.lastViewportPosition_ = this.viewport_.position; // TODO(raymes): Disable these properly in the plugin. var printButton = $('print-button'); if (printButton) printButton.parentNode.removeChild(printButton); var saveButton = $('save-button'); if (saveButton) saveButton.parentNode.removeChild(saveButton); this.pageIndicator_.pageLabels = message.data.pageNumbers; this.plugin_.postMessage({ type: 'resetPrintPreviewMode', url: message.data.url, grayscale: message.data.grayscale, // If the PDF isn't modifiable we send 0 as the page count so that no // blank placeholder pages get appended to the PDF. pageCount: (message.data.modifiable ? message.data.pageNumbers.length : 0) }); return true; case 'sendKeyEvent': this.handleKeyEvent_(DeserializeKeyEvent(message.data.keyEvent)); return true; } return false; }, /** * @private * Send a scripting message outside the extension (typically to * PDFScriptingAPI in a page containing the extension). * @param {Object} message the message to send. */ sendScriptingMessage_: function(message) { if (this.parentWindow_ && this.parentOrigin_) { var targetOrigin; // Only send data back to the embedder if it is from the same origin, // unless we're sending it to ourselves (which could happen in the case // of tests). We also allow documentLoaded messages through as this won't // leak important information. if (this.parentOrigin_ == window.location.origin) targetOrigin = this.parentOrigin_; else if (message.type == 'documentLoaded') targetOrigin = '*'; else targetOrigin = this.browserApi_.getStreamInfo().originalUrl; this.parentWindow_.postMessage(message, targetOrigin); } }, /** * @type {Viewport} the viewport of the PDF viewer. */ get viewport() { return this.viewport_; }, /** * Each bookmark is an Object containing a: * - title * - page (optional) * - array of children (themselves bookmarks) * @type {Array} the top-level bookmarks of the PDF. */ get bookmarks() { return this.bookmarks_; } }; // Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. 'use strict'; /** Idle time in ms before the UI is hidden. */ var HIDE_TIMEOUT = 2000; /** Time in ms after force hide before toolbar is shown again. */ var FORCE_HIDE_TIMEOUT = 1000; /** Velocity required in a mousemove to reveal the UI (pixels/sample). */ var SHOW_VELOCITY = 25; /** Distance from the top of the screen required to reveal the toolbars. */ var TOP_TOOLBAR_REVEAL_DISTANCE = 100; /** Distance from the bottom-right of the screen required to reveal toolbars. */ var SIDE_TOOLBAR_REVEAL_DISTANCE_RIGHT = 150; var SIDE_TOOLBAR_REVEAL_DISTANCE_BOTTOM = 250; /** * Whether a mousemove event is high enough velocity to reveal the toolbars. * @param {MouseEvent} e Event to test. * @return {boolean} true if the event is a high velocity mousemove, false * otherwise. */ function isHighVelocityMouseMove(e) { return e.type == 'mousemove' && e.movementX * e.movementX + e.movementY * e.movementY > SHOW_VELOCITY * SHOW_VELOCITY; } /** * @param {MouseEvent} e Event to test. * @return {boolean} True if the mouse is close to the top of the screen. */ function isMouseNearTopToolbar(e) { return e.y < TOP_TOOLBAR_REVEAL_DISTANCE; } /** * @param {MouseEvent} e Event to test. * @return {boolean} True if the mouse is close to the bottom-right of the * screen. */ function isMouseNearSideToolbar(e) { var atSide = e.x > window.innerWidth - SIDE_TOOLBAR_REVEAL_DISTANCE_RIGHT; if (document.dir == 'rtl') atSide = e.x < SIDE_TOOLBAR_REVEAL_DISTANCE_RIGHT; var atBottom = e.y > window.innerHeight - SIDE_TOOLBAR_REVEAL_DISTANCE_BOTTOM; return atSide && atBottom; } /** * Constructs a Toolbar Manager, responsible for co-ordinating between multiple * toolbar elements. * @constructor * @param {Object} window The window containing the UI. * @param {Object} toolbar The top toolbar element. * @param {Object} zoomToolbar The zoom toolbar element. */ function ToolbarManager(window, toolbar, zoomToolbar) { this.window_ = window; this.toolbar_ = toolbar; this.zoomToolbar_ = zoomToolbar; this.toolbarTimeout_ = null; this.isMouseNearTopToolbar_ = false; this.isMouseNearSideToolbar_ = false; this.sideToolbarAllowedOnly_ = false; this.sideToolbarAllowedOnlyTimer_ = null; this.keyboardNavigationActive = false; this.window_.addEventListener('resize', this.resizeDropdowns_.bind(this)); this.resizeDropdowns_(); } ToolbarManager.prototype = { handleMouseMove: function(e) { this.isMouseNearTopToolbar_ = this.toolbar_ && isMouseNearTopToolbar(e); this.isMouseNearSideToolbar_ = isMouseNearSideToolbar(e); this.keyboardNavigationActive = false; var touchInteractionActive = (e.sourceCapabilities && e.sourceCapabilities.firesTouchEvents); // Allow the top toolbar to be shown if the mouse moves away from the side // toolbar (as long as the timeout has elapsed). if (!this.isMouseNearSideToolbar_ && !this.sideToolbarAllowedOnlyTimer_) this.sideToolbarAllowedOnly_ = false; // Allow the top toolbar to be shown if the mouse moves to the top edge. if (this.isMouseNearTopToolbar_) this.sideToolbarAllowedOnly_ = false; // Tapping the screen with toolbars open tries to close them. if (touchInteractionActive && this.zoomToolbar_.isVisible()) { this.hideToolbarsIfAllowed(); return; } // Show the toolbars if the mouse is near the top or bottom-right of the // screen, if the mouse moved fast, or if the touchscreen was tapped. if (this.isMouseNearTopToolbar_ || this.isMouseNearSideToolbar_ || isHighVelocityMouseMove(e) || touchInteractionActive) { if (this.sideToolbarAllowedOnly_) this.zoomToolbar_.show(); else this.showToolbars(); } this.hideToolbarsAfterTimeout(); }, /** * Display both UI toolbars. */ showToolbars: function() { if (this.toolbar_) this.toolbar_.show(); this.zoomToolbar_.show(); }, /** * Show toolbars and mark that navigation is being performed with * tab/shift-tab. This disables toolbar hiding until the mouse is moved or * escape is pressed. */ showToolbarsForKeyboardNavigation: function() { this.keyboardNavigationActive = true; this.showToolbars(); }, /** * Hide toolbars after a delay, regardless of the position of the mouse. * Intended to be called when the mouse has moved out of the parent window. */ hideToolbarsForMouseOut: function() { this.isMouseNearTopToolbar_ = false; this.isMouseNearSideToolbar_ = false; this.hideToolbarsAfterTimeout(); }, /** * Check if the toolbars are able to be closed, and close them if they are. * Toolbars may be kept open based on mouse/keyboard activity and active * elements. */ hideToolbarsIfAllowed: function() { if (this.isMouseNearSideToolbar_ || this.isMouseNearTopToolbar_) return; if (this.toolbar_ && this.toolbar_.shouldKeepOpen()) return; if (this.keyboardNavigationActive) return; // Remove focus to make any visible tooltips disappear -- otherwise they'll // still be visible on screen when the toolbar is off screen. if ((this.toolbar_ && document.activeElement == this.toolbar_) || document.activeElement == this.zoomToolbar_) { document.activeElement.blur(); } if (this.toolbar_) this.toolbar_.hide(); this.zoomToolbar_.hide(); }, /** * Hide the toolbar after the HIDE_TIMEOUT has elapsed. */ hideToolbarsAfterTimeout: function() { if (this.toolbarTimeout_) this.window_.clearTimeout(this.toolbarTimeout_); this.toolbarTimeout_ = this.window_.setTimeout( this.hideToolbarsIfAllowed.bind(this), HIDE_TIMEOUT); }, /** * Hide the 'topmost' layer of toolbars. Hides any dropdowns that are open, or * hides the basic toolbars otherwise. */ hideSingleToolbarLayer: function() { if (!this.toolbar_ || !this.toolbar_.hideDropdowns()) { this.keyboardNavigationActive = false; this.hideToolbarsIfAllowed(); } }, /** * Hide the top toolbar and keep it hidden until both: * - The mouse is moved away from the right side of the screen * - 1 second has passed. * * The top toolbar can be immediately re-opened by moving the mouse to the top * of the screen. */ forceHideTopToolbar: function() { if (!this.toolbar_) return; this.toolbar_.hide(); this.sideToolbarAllowedOnly_ = true; this.sideToolbarAllowedOnlyTimer_ = this.window_.setTimeout(function() { this.sideToolbarAllowedOnlyTimer_ = null; }.bind(this), FORCE_HIDE_TIMEOUT); }, /** * Updates the size of toolbar dropdowns based on the positions of the rest of * the UI. * @private */ resizeDropdowns_: function() { if (!this.toolbar_) return; var lowerBound = this.window_.innerHeight - this.zoomToolbar_.clientHeight; this.toolbar_.setDropdownLowerBound(lowerBound); } }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * Returns the height of the intersection of two rectangles. * @param {Object} rect1 the first rect * @param {Object} rect2 the second rect * @return {number} the height of the intersection of the rects */ function getIntersectionHeight(rect1, rect2) { return Math.max(0, Math.min(rect1.y + rect1.height, rect2.y + rect2.height) - Math.max(rect1.y, rect2.y)); } /** * Create a new viewport. * @constructor * @param {Window} window the window * @param {Object} sizer is the element which represents the size of the * document in the viewport * @param {Function} viewportChangedCallback is run when the viewport changes * @param {Function} beforeZoomCallback is run before a change in zoom * @param {Function} afterZoomCallback is run after a change in zoom * @param {number} scrollbarWidth the width of scrollbars on the page * @param {number} defaultZoom The default zoom level. * @param {number} topToolbarHeight The number of pixels that should initially * be left blank above the document for the toolbar. */ function Viewport(window, sizer, viewportChangedCallback, beforeZoomCallback, afterZoomCallback, scrollbarWidth, defaultZoom, topToolbarHeight) { this.window_ = window; this.sizer_ = sizer; this.viewportChangedCallback_ = viewportChangedCallback; this.beforeZoomCallback_ = beforeZoomCallback; this.afterZoomCallback_ = afterZoomCallback; this.allowedToChangeZoom_ = false; this.zoom_ = 1; this.documentDimensions_ = null; this.pageDimensions_ = []; this.scrollbarWidth_ = scrollbarWidth; this.fittingType_ = Viewport.FittingType.NONE; this.defaultZoom_ = defaultZoom; this.topToolbarHeight_ = topToolbarHeight; window.addEventListener('scroll', this.updateViewport_.bind(this)); window.addEventListener('resize', this.resize_.bind(this)); } /** * Enumeration of page fitting types. * @enum {string} */ Viewport.FittingType = { NONE: 'none', FIT_TO_PAGE: 'fit-to-page', FIT_TO_WIDTH: 'fit-to-width' }; /** * The increment to scroll a page by in pixels when up/down/left/right arrow * keys are pressed. Usually we just let the browser handle scrolling on the * window when these keys are pressed but in certain cases we need to simulate * these events. */ Viewport.SCROLL_INCREMENT = 40; /** * Predefined zoom factors to be used when zooming in/out. These are in * ascending order. This should match the list in * components/ui/zoom/page_zoom_constants.h */ Viewport.ZOOM_FACTORS = [0.25, 0.333, 0.5, 0.666, 0.75, 0.9, 1, 1.1, 1.25, 1.5, 1.75, 2, 2.5, 3, 4, 5]; /** * The minimum and maximum range to be used to clip zoom factor. */ Viewport.ZOOM_FACTOR_RANGE = { min: Viewport.ZOOM_FACTORS[0], max: Viewport.ZOOM_FACTORS[Viewport.ZOOM_FACTORS.length - 1] }; /** * The width of the page shadow around pages in pixels. */ Viewport.PAGE_SHADOW = {top: 3, bottom: 7, left: 5, right: 5}; Viewport.prototype = { /** * Returns the zoomed and rounded document dimensions for the given zoom. * Rounding is necessary when interacting with the renderer which tends to * operate in integral values (for example for determining if scrollbars * should be shown). * @param {number} zoom The zoom to use to compute the scaled dimensions. * @return {Object} A dictionary with scaled 'width'/'height' of the document. * @private */ getZoomedDocumentDimensions_: function(zoom) { if (!this.documentDimensions_) return null; return { width: Math.round(this.documentDimensions_.width * zoom), height: Math.round(this.documentDimensions_.height * zoom) }; }, /** * @private * Returns true if the document needs scrollbars at the given zoom level. * @param {number} zoom compute whether scrollbars are needed at this zoom * @return {Object} with 'horizontal' and 'vertical' keys which map to bool * values indicating if the horizontal and vertical scrollbars are needed * respectively. */ documentNeedsScrollbars_: function(zoom) { var zoomedDimensions = this.getZoomedDocumentDimensions_(zoom); if (!zoomedDimensions) { return { horizontal: false, vertical: false }; } // If scrollbars are required for one direction, expand the document in the // other direction to take the width of the scrollbars into account when // deciding whether the other direction needs scrollbars. if (zoomedDimensions.width > this.window_.innerWidth) zoomedDimensions.height += this.scrollbarWidth_; else if (zoomedDimensions.height > this.window_.innerHeight) zoomedDimensions.width += this.scrollbarWidth_; return { horizontal: zoomedDimensions.width > this.window_.innerWidth, vertical: zoomedDimensions.height + this.topToolbarHeight_ > this.window_.innerHeight }; }, /** * Returns true if the document needs scrollbars at the current zoom level. * @return {Object} with 'x' and 'y' keys which map to bool values * indicating if the horizontal and vertical scrollbars are needed * respectively. */ documentHasScrollbars: function() { return this.documentNeedsScrollbars_(this.zoom_); }, /** * @private * Helper function called when the zoomed document size changes. */ contentSizeChanged_: function() { var zoomedDimensions = this.getZoomedDocumentDimensions_(this.zoom_); if (zoomedDimensions) { this.sizer_.style.width = zoomedDimensions.width + 'px'; this.sizer_.style.height = zoomedDimensions.height + this.topToolbarHeight_ + 'px'; } }, /** * @private * Called when the viewport should be updated. */ updateViewport_: function() { this.viewportChangedCallback_(); }, /** * @private * Called when the viewport size changes. */ resize_: function() { if (this.fittingType_ == Viewport.FittingType.FIT_TO_PAGE) this.fitToPageInternal_(false); else if (this.fittingType_ == Viewport.FittingType.FIT_TO_WIDTH) this.fitToWidth(); else this.updateViewport_(); }, /** * @type {Object} the scroll position of the viewport. */ get position() { return { x: this.window_.pageXOffset, y: this.window_.pageYOffset - this.topToolbarHeight_ }; }, /** * Scroll the viewport to the specified position. * @type {Object} position the position to scroll to. */ set position(position) { this.window_.scrollTo(position.x, position.y + this.topToolbarHeight_); }, /** * @type {Object} the size of the viewport excluding scrollbars. */ get size() { var needsScrollbars = this.documentNeedsScrollbars_(this.zoom_); var scrollbarWidth = needsScrollbars.vertical ? this.scrollbarWidth_ : 0; var scrollbarHeight = needsScrollbars.horizontal ? this.scrollbarWidth_ : 0; return { width: this.window_.innerWidth - scrollbarWidth, height: this.window_.innerHeight - scrollbarHeight }; }, /** * @type {number} the zoom level of the viewport. */ get zoom() { return this.zoom_; }, /** * @private * Used to wrap a function that might perform zooming on the viewport. This is * required so that we can notify the plugin that zooming is in progress * so that while zooming is taking place it can stop reacting to scroll events * from the viewport. This is to avoid flickering. */ mightZoom_: function(f) { this.beforeZoomCallback_(); this.allowedToChangeZoom_ = true; f(); this.allowedToChangeZoom_ = false; this.afterZoomCallback_(); }, /** * @private * Sets the zoom of the viewport. * @param {number} newZoom the zoom level to zoom to. */ setZoomInternal_: function(newZoom) { if (!this.allowedToChangeZoom_) { throw 'Called Viewport.setZoomInternal_ without calling ' + 'Viewport.mightZoom_.'; } // Record the scroll position (relative to the top-left of the window). var currentScrollPos = { x: this.position.x / this.zoom_, y: this.position.y / this.zoom_ }; this.zoom_ = newZoom; this.contentSizeChanged_(); // Scroll to the scaled scroll position. this.position = { x: currentScrollPos.x * newZoom, y: currentScrollPos.y * newZoom }; }, /** * Sets the zoom to the given zoom level. * @param {number} newZoom the zoom level to zoom to. */ setZoom: function(newZoom) { this.fittingType_ = Viewport.FittingType.NONE; newZoom = Math.max(Viewport.ZOOM_FACTOR_RANGE.min, Math.min(newZoom, Viewport.ZOOM_FACTOR_RANGE.max)); this.mightZoom_(function() { this.setZoomInternal_(newZoom); this.updateViewport_(); }.bind(this)); }, /** * @type {number} the width of scrollbars in the viewport in pixels. */ get scrollbarWidth() { return this.scrollbarWidth_; }, /** * @type {Viewport.FittingType} the fitting type the viewport is currently in. */ get fittingType() { return this.fittingType_; }, /** * @private * @param {integer} y the y-coordinate to get the page at. * @return {integer} the index of a page overlapping the given y-coordinate. */ getPageAtY_: function(y) { var min = 0; var max = this.pageDimensions_.length - 1; while (max >= min) { var page = Math.floor(min + ((max - min) / 2)); // There might be a gap between the pages, in which case use the bottom // of the previous page as the top for finding the page. var top = 0; if (page > 0) { top = this.pageDimensions_[page - 1].y + this.pageDimensions_[page - 1].height; } var bottom = this.pageDimensions_[page].y + this.pageDimensions_[page].height; if (top <= y && bottom > y) return page; else if (top > y) max = page - 1; else min = page + 1; } return 0; }, /** * Returns the page with the greatest proportion of its height in the current * viewport. * @return {int} the index of the most visible page. */ getMostVisiblePage: function() { var firstVisiblePage = this.getPageAtY_(this.position.y / this.zoom_); if (firstVisiblePage == this.pageDimensions_.length - 1) return firstVisiblePage; var viewportRect = { x: this.position.x / this.zoom_, y: this.position.y / this.zoom_, width: this.size.width / this.zoom_, height: this.size.height / this.zoom_ }; var firstVisiblePageVisibility = getIntersectionHeight( this.pageDimensions_[firstVisiblePage], viewportRect) / this.pageDimensions_[firstVisiblePage].height; var nextPageVisibility = getIntersectionHeight( this.pageDimensions_[firstVisiblePage + 1], viewportRect) / this.pageDimensions_[firstVisiblePage + 1].height; if (nextPageVisibility > firstVisiblePageVisibility) return firstVisiblePage + 1; return firstVisiblePage; }, /** * @private * Compute the zoom level for fit-to-page or fit-to-width. |pageDimensions| is * the dimensions for a given page and if |widthOnly| is true, it indicates * that fit-to-page zoom should be computed rather than fit-to-page. * @param {Object} pageDimensions the dimensions of a given page * @param {boolean} widthOnly a bool indicating whether fit-to-page or * fit-to-width should be computed. * @return {number} the zoom to use */ computeFittingZoom_: function(pageDimensions, widthOnly) { // First compute the zoom without scrollbars. var zoomWidth = this.window_.innerWidth / pageDimensions.width; var zoom; var zoomHeight; if (widthOnly) { zoom = zoomWidth; } else { zoomHeight = this.window_.innerHeight / pageDimensions.height; zoom = Math.min(zoomWidth, zoomHeight); } // Check if there needs to be any scrollbars. var needsScrollbars = this.documentNeedsScrollbars_(zoom); // If the document fits, just return the zoom. if (!needsScrollbars.horizontal && !needsScrollbars.vertical) return zoom; var zoomedDimensions = this.getZoomedDocumentDimensions_(zoom); // Check if adding a scrollbar will result in needing the other scrollbar. var scrollbarWidth = this.scrollbarWidth_; if (needsScrollbars.horizontal && zoomedDimensions.height > this.window_.innerHeight - scrollbarWidth) { needsScrollbars.vertical = true; } if (needsScrollbars.vertical && zoomedDimensions.width > this.window_.innerWidth - scrollbarWidth) { needsScrollbars.horizontal = true; } // Compute available window space. var windowWithScrollbars = { width: this.window_.innerWidth, height: this.window_.innerHeight }; if (needsScrollbars.horizontal) windowWithScrollbars.height -= scrollbarWidth; if (needsScrollbars.vertical) windowWithScrollbars.width -= scrollbarWidth; // Recompute the zoom. zoomWidth = windowWithScrollbars.width / pageDimensions.width; if (widthOnly) { zoom = zoomWidth; } else { zoomHeight = windowWithScrollbars.height / pageDimensions.height; zoom = Math.min(zoomWidth, zoomHeight); } return zoom; }, /** * Zoom the viewport so that the page-width consumes the entire viewport. */ fitToWidth: function() { this.mightZoom_(function() { this.fittingType_ = Viewport.FittingType.FIT_TO_WIDTH; if (!this.documentDimensions_) return; // When computing fit-to-width, the maximum width of a page in the // document is used, which is equal to the size of the document width. this.setZoomInternal_(this.computeFittingZoom_(this.documentDimensions_, true)); var page = this.getMostVisiblePage(); this.updateViewport_(); }.bind(this)); }, /** * @private * Zoom the viewport so that a page consumes the entire viewport. * @param {boolean} scrollToTopOfPage Set to true if the viewport should be * scrolled to the top of the current page. Set to false if the viewport * should remain at the current scroll position. */ fitToPageInternal_: function(scrollToTopOfPage) { this.mightZoom_(function() { this.fittingType_ = Viewport.FittingType.FIT_TO_PAGE; if (!this.documentDimensions_) return; var page = this.getMostVisiblePage(); // Fit to the current page's height and the widest page's width. var dimensions = { width: this.documentDimensions_.width, height: this.pageDimensions_[page].height, }; this.setZoomInternal_(this.computeFittingZoom_(dimensions, false)); if (scrollToTopOfPage) { this.position = { x: 0, y: this.pageDimensions_[page].y * this.zoom_ }; } this.updateViewport_(); }.bind(this)); }, /** * Zoom the viewport so that a page consumes the entire viewport. Also scrolls * the viewport to the top of the current page. */ fitToPage: function() { this.fitToPageInternal_(true); }, /** * Zoom out to the next predefined zoom level. */ zoomOut: function() { this.mightZoom_(function() { this.fittingType_ = Viewport.FittingType.NONE; var nextZoom = Viewport.ZOOM_FACTORS[0]; for (var i = 0; i < Viewport.ZOOM_FACTORS.length; i++) { if (Viewport.ZOOM_FACTORS[i] < this.zoom_) nextZoom = Viewport.ZOOM_FACTORS[i]; } this.setZoomInternal_(nextZoom); this.updateViewport_(); }.bind(this)); }, /** * Zoom in to the next predefined zoom level. */ zoomIn: function() { this.mightZoom_(function() { this.fittingType_ = Viewport.FittingType.NONE; var nextZoom = Viewport.ZOOM_FACTORS[Viewport.ZOOM_FACTORS.length - 1]; for (var i = Viewport.ZOOM_FACTORS.length - 1; i >= 0; i--) { if (Viewport.ZOOM_FACTORS[i] > this.zoom_) nextZoom = Viewport.ZOOM_FACTORS[i]; } this.setZoomInternal_(nextZoom); this.updateViewport_(); }.bind(this)); }, /** * Go to the given page index. * @param {number} page the index of the page to go to. zero-based. */ goToPage: function(page) { this.mightZoom_(function() { if (this.pageDimensions_.length === 0) return; if (page < 0) page = 0; if (page >= this.pageDimensions_.length) page = this.pageDimensions_.length - 1; var dimensions = this.pageDimensions_[page]; var toolbarOffset = 0; // Unless we're in fit to page mode, scroll above the page by // |this.topToolbarHeight_| so that the toolbar isn't covering it // initially. if (this.fittingType_ != Viewport.FittingType.FIT_TO_PAGE) toolbarOffset = this.topToolbarHeight_; this.position = { x: dimensions.x * this.zoom_, y: dimensions.y * this.zoom_ - toolbarOffset }; this.updateViewport_(); }.bind(this)); }, /** * Set the dimensions of the document. * @param {Object} documentDimensions the dimensions of the document */ setDocumentDimensions: function(documentDimensions) { this.mightZoom_(function() { var initialDimensions = !this.documentDimensions_; this.documentDimensions_ = documentDimensions; this.pageDimensions_ = this.documentDimensions_.pageDimensions; if (initialDimensions) { this.setZoomInternal_( Math.min(this.defaultZoom_, this.computeFittingZoom_(this.documentDimensions_, true))); this.position = { x: 0, y: -this.topToolbarHeight_ }; } this.contentSizeChanged_(); this.resize_(); }.bind(this)); }, /** * Get the coordinates of the page contents (excluding the page shadow) * relative to the screen. * @param {number} page the index of the page to get the rect for. * @return {Object} a rect representing the page in screen coordinates. */ getPageScreenRect: function(page) { if (!this.documentDimensions_) { return { x: 0, y: 0, width: 0, height: 0 }; } if (page >= this.pageDimensions_.length) page = this.pageDimensions_.length - 1; var pageDimensions = this.pageDimensions_[page]; // Compute the page dimensions minus the shadows. var insetDimensions = { x: pageDimensions.x + Viewport.PAGE_SHADOW.left, y: pageDimensions.y + Viewport.PAGE_SHADOW.top, width: pageDimensions.width - Viewport.PAGE_SHADOW.left - Viewport.PAGE_SHADOW.right, height: pageDimensions.height - Viewport.PAGE_SHADOW.top - Viewport.PAGE_SHADOW.bottom }; // Compute the x-coordinate of the page within the document. // TODO(raymes): This should really be set when the PDF plugin passes the // page coordinates, but it isn't yet. var x = (this.documentDimensions_.width - pageDimensions.width) / 2 + Viewport.PAGE_SHADOW.left; // Compute the space on the left of the document if the document fits // completely in the screen. var spaceOnLeft = (this.size.width - this.documentDimensions_.width * this.zoom_) / 2; spaceOnLeft = Math.max(spaceOnLeft, 0); return { x: x * this.zoom_ + spaceOnLeft - this.window_.pageXOffset, y: insetDimensions.y * this.zoom_ - this.window_.pageYOffset, width: insetDimensions.width * this.zoom_, height: insetDimensions.height * this.zoom_ }; } }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. 'use strict'; /** * Creates a new OpenPDFParamsParser. This parses the open pdf parameters * passed in the url to set initial viewport settings for opening the pdf. * @param {Object} getNamedDestinationsFunction The function called to fetch * the page number for a named destination. */ function OpenPDFParamsParser(getNamedDestinationsFunction) { this.outstandingRequests_ = []; this.getNamedDestinationsFunction_ = getNamedDestinationsFunction; } OpenPDFParamsParser.prototype = { /** * @private * Parse zoom parameter of open PDF parameters. If this * parameter is passed while opening PDF then PDF should be opened * at the specified zoom level. * @param {number} zoom value. * @param {Object} viewportPosition to store zoom and position value. */ parseZoomParam_: function(paramValue, viewportPosition) { var paramValueSplit = paramValue.split(','); if ((paramValueSplit.length != 1) && (paramValueSplit.length != 3)) return; // User scale of 100 means zoom value of 100% i.e. zoom factor of 1.0. var zoomFactor = parseFloat(paramValueSplit[0]) / 100; if (isNaN(zoomFactor)) return; // Handle #zoom=scale. if (paramValueSplit.length == 1) { viewportPosition['zoom'] = zoomFactor; return; } // Handle #zoom=scale,left,top. var position = {x: parseFloat(paramValueSplit[1]), y: parseFloat(paramValueSplit[2])}; viewportPosition['position'] = position; viewportPosition['zoom'] = zoomFactor; }, /** * @private * Parse PDF url parameters. These parameters are mentioned in the url * and specify actions to be performed when opening pdf files. * See http://www.adobe.com/content/dam/Adobe/en/devnet/acrobat/ * pdfs/pdf_open_parameters.pdf for details. * @param {string} url that needs to be parsed. * @param {Function} callback function to be called with viewport info. */ getViewportFromUrlParams: function(url, callback) { var viewportPosition = {}; viewportPosition['url'] = url; var paramIndex = url.search('#'); if (paramIndex == -1) { callback(viewportPosition); return; } var paramTokens = url.substring(paramIndex + 1).split('&'); if ((paramTokens.length == 1) && (paramTokens[0].search('=') == -1)) { // Handle the case of http://foo.com/bar#NAMEDDEST. This is not // explicitly mentioned except by example in the Adobe // "PDF Open Parameters" document. this.outstandingRequests_.push({ callback: callback, viewportPosition: viewportPosition }); this.getNamedDestinationsFunction_(paramTokens[0]); return; } var paramsDictionary = {}; for (var i = 0; i < paramTokens.length; ++i) { var keyValueSplit = paramTokens[i].split('='); if (keyValueSplit.length != 2) continue; paramsDictionary[keyValueSplit[0]] = keyValueSplit[1]; } if ('page' in paramsDictionary) { // |pageNumber| is 1-based, but goToPage() take a zero-based page number. var pageNumber = parseInt(paramsDictionary['page']); if (!isNaN(pageNumber) && pageNumber > 0) viewportPosition['page'] = pageNumber - 1; } if ('zoom' in paramsDictionary) this.parseZoomParam_(paramsDictionary['zoom'], viewportPosition); if (viewportPosition.page === undefined && 'nameddest' in paramsDictionary) { this.outstandingRequests_.push({ callback: callback, viewportPosition: viewportPosition }); this.getNamedDestinationsFunction_(paramsDictionary['nameddest']); } else { callback(viewportPosition); } }, /** * This is called when a named destination is received and the page number * corresponding to the request for which a named destination is passed. * @param {number} pageNumber The page corresponding to the named destination * requested. */ onNamedDestinationReceived: function(pageNumber) { var outstandingRequest = this.outstandingRequests_.shift(); if (pageNumber != -1) outstandingRequest.viewportPosition.page = pageNumber; outstandingRequest.callback(outstandingRequest.viewportPosition); }, }; // Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. 'use strict'; /** * Creates a new Navigator for navigating to links inside or outside the PDF. * @param {string} originalUrl The original page URL. * @param {Object} viewport The viewport info of the page. * @param {Object} paramsParser The object for URL parsing. * @param {Function} navigateInCurrentTabCallback The Callback function that * gets called when navigation happens in the current tab. * @param {Function} navigateInNewTabCallback The Callback function that gets * called when navigation happens in the new tab. */ function Navigator(originalUrl, viewport, paramsParser, navigateInCurrentTabCallback, navigateInNewTabCallback) { this.originalUrl_ = originalUrl; this.viewport_ = viewport; this.paramsParser_ = paramsParser; this.navigateInCurrentTabCallback_ = navigateInCurrentTabCallback; this.navigateInNewTabCallback_ = navigateInNewTabCallback; } Navigator.prototype = { /** * @private * Function to navigate to the given URL. This might involve navigating * within the PDF page or opening a new url (in the same tab or a new tab). * @param {string} url The URL to navigate to. * @param {boolean} newTab Whether to perform the navigation in a new tab or * in the current tab. */ navigate: function(url, newTab) { if (url.length == 0) return; // If |urlFragment| starts with '#', then it's for the same URL with a // different URL fragment. if (url.charAt(0) == '#') { // if '#' is already present in |originalUrl| then remove old fragment // and add new url fragment. var hashIndex = this.originalUrl_.search('#'); if (hashIndex != -1) url = this.originalUrl_.substring(0, hashIndex) + url; else url = this.originalUrl_ + url; } // If there's no scheme, then take a guess at the scheme. if (url.indexOf('://') == -1 && url.indexOf('mailto:') == -1) url = this.guessUrlWithoutScheme_(url); if (!this.isValidUrl_(url)) return; if (newTab) { this.navigateInNewTabCallback_(url); } else { this.paramsParser_.getViewportFromUrlParams( url, this.onViewportReceived_.bind(this)); } }, /** * @private * Called when the viewport position is received. * @param {Object} viewportPosition Dictionary containing the viewport * position. */ onViewportReceived_: function(viewportPosition) { var pageNumber = viewportPosition.page; if (pageNumber != undefined) this.viewport_.goToPage(pageNumber); else this.navigateInCurrentTabCallback_(viewportPosition['url']); }, /** * @private * Checks if the URL starts with a scheme and s not just a scheme. * @param {string} The input URL * @return {boolean} Whether the url is valid. */ isValidUrl_: function(url) { // Make sure |url| starts with a valid scheme. if (url.indexOf('http://') != 0 && url.indexOf('https://') != 0 && url.indexOf('ftp://') != 0 && url.indexOf('file://') != 0 && url.indexOf('mailto:') != 0) { return false; } // Make sure |url| is not only a scheme. if (url == 'http://' || url == 'https://' || url == 'ftp://' || url == 'file://' || url == 'mailto:') { return false; } return true; }, /** * @private * Attempt to figure out what a URL is when there is no scheme. * @param {string} The input URL * @return {string} The URL with a scheme or the original URL if it is not * possible to determine the scheme. */ guessUrlWithoutScheme_: function(url) { // If the original URL is mailto:, that does not make sense to start with, // and neither does adding |url| to it. // If the original URL is not a valid URL, this cannot make a valid URL. // In both cases, just bail out. if (this.originalUrl_.startsWith('mailto:') || !this.isValidUrl_(this.originalUrl_)) { return url; } // Check for absolute paths. if (url.startsWith('/')) { var schemeEndIndex = this.originalUrl_.indexOf('://'); var firstSlash = this.originalUrl_.indexOf('/', schemeEndIndex + 3); // e.g. http://www.foo.com/bar -> http://www.foo.com var domain = firstSlash != -1 ? this.originalUrl_.substr(0, firstSlash) : this.originalUrl_; return domain + url; } // Check for obvious relative paths. var isRelative = false; if (url.startsWith('.') || url.startsWith('\\')) isRelative = true; // In Adobe Acrobat Reader XI, it looks as though links with less than // 2 dot separators in the domain are considered relative links, and // those with 2 of more are considered http URLs. e.g. // // www.foo.com/bar -> http // foo.com/bar -> relative link if (!isRelative) { var domainSeparatorIndex = url.indexOf('/'); var domainName = domainSeparatorIndex == -1 ? url : url.substr(0, domainSeparatorIndex); var domainDotCount = (domainName.match(/\./g) || []).length; if (domainDotCount < 2) isRelative = true; } if (isRelative) { var slashIndex = this.originalUrl_.lastIndexOf('/'); var path = slashIndex != -1 ? this.originalUrl_.substr(0, slashIndex) : this.originalUrl_; return path + '/' + url; } return 'http://' + url; } }; // Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. 'use strict'; /** * @private * The period of time in milliseconds to wait between updating the viewport * position by the scroll velocity. */ ViewportScroller.DRAG_TIMER_INTERVAL_MS_ = 100; /** * @private * The maximum drag scroll distance per DRAG_TIMER_INTERVAL in pixels. */ ViewportScroller.MAX_DRAG_SCROLL_DISTANCE_ = 100; /** * Creates a new ViewportScroller. * A ViewportScroller scrolls the page in response to drag selection with the * mouse. * @param {Object} viewport The viewport info of the page. * @param {Object} plugin The PDF plugin element. * @param {Object} window The window containing the viewer. */ function ViewportScroller(viewport, plugin, window) { this.viewport_ = viewport; this.plugin_ = plugin; this.window_ = window; this.mousemoveCallback_ = null; this.timerId_ = null; this.scrollVelocity_ = null; this.lastFrameTime_ = 0; } ViewportScroller.prototype = { /** * @private * Start scrolling the page by |scrollVelocity_| every * |DRAG_TIMER_INTERVAL_MS_|. */ startDragScrollTimer_: function() { if (this.timerId_ === null) { this.timerId_ = this.window_.setInterval(this.dragScrollPage_.bind(this), ViewportScroller.DRAG_TIMER_INTERVAL_MS_); this.lastFrameTime_ = Date.now(); } }, /** * @private * Stops the drag scroll timer if it is active. */ stopDragScrollTimer_: function() { if (this.timerId_ !== null) { this.window_.clearInterval(this.timerId_); this.timerId_ = null; this.lastFrameTime_ = 0; } }, /** * @private * Scrolls the viewport by the current scroll velocity. */ dragScrollPage_: function() { var position = this.viewport_.position; var currentFrameTime = Date.now(); var timeAdjustment = (currentFrameTime - this.lastFrameTime_) / ViewportScroller.DRAG_TIMER_INTERVAL_MS_; position.y += (this.scrollVelocity_.y * timeAdjustment); position.x += (this.scrollVelocity_.x * timeAdjustment); this.viewport_.position = position; this.lastFrameTime_ = currentFrameTime; }, /** * @private * Calculate the velocity to scroll while dragging using the distance of the * cursor outside the viewport. * @param {Object} event The mousemove event. * @return {Object} Object with x and y direction scroll velocity. */ calculateVelocity_: function(event) { var x = Math.min(Math.max(-event.offsetX, event.offsetX - this.plugin_.offsetWidth, 0), ViewportScroller.MAX_DRAG_SCROLL_DISTANCE_) * Math.sign(event.offsetX); var y = Math.min(Math.max(-event.offsetY, event.offsetY - this.plugin_.offsetHeight, 0), ViewportScroller.MAX_DRAG_SCROLL_DISTANCE_) * Math.sign(event.offsetY); return { x: x, y: y }; }, /** * @private * Handles mousemove events. It updates the scroll velocity and starts and * stops timer based on scroll velocity. * @param {Object} event The mousemove event. */ onMousemove_: function(event) { this.scrollVelocity_ = this.calculateVelocity_(event); if (!this.scrollVelocity_.x && !this.scrollVelocity_.y) this.stopDragScrollTimer_(); else if (!this.timerId_) this.startDragScrollTimer_(); }, /** * Sets whether to scroll the viewport when the mouse is outside the * viewport. * @param {boolean} isSelecting Represents selection status. */ setEnableScrolling: function(isSelecting) { if (isSelecting) { if (!this.mousemoveCallback_) this.mousemoveCallback_ = this.onMousemove_.bind(this); this.plugin_.addEventListener('mousemove', this.mousemoveCallback_, false); } else { this.stopDragScrollTimer_(); if (this.mousemoveCallback_) { this.plugin_.removeEventListener('mousemove', this.mousemoveCallback_, false); } } } }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * Turn a dictionary received from postMessage into a key event. * @param {Object} dict A dictionary representing the key event. * @return {Event} A key event. */ function DeserializeKeyEvent(dict) { var e = document.createEvent('Event'); e.initEvent('keydown'); e.keyCode = dict.keyCode; e.shiftKey = dict.shiftKey; e.ctrlKey = dict.ctrlKey; e.altKey = dict.altKey; e.metaKey = dict.metaKey; e.fromScriptingAPI = true; return e; } /** * Turn a key event into a dictionary which can be sent over postMessage. * @param {Event} event A key event. * @return {Object} A dictionary representing the key event. */ function SerializeKeyEvent(event) { return { keyCode: event.keyCode, shiftKey: event.shiftKey, ctrlKey: event.ctrlKey, altKey: event.altKey, metaKey: event.metaKey }; } /** * An enum containing a value specifying whether the PDF is currently loading, * has finished loading or failed to load. */ var LoadState = { LOADING: 'loading', SUCCESS: 'success', FAILED: 'failed' }; /** * Create a new PDFScriptingAPI. This provides a scripting interface to * the PDF viewer so that it can be customized by things like print preview. * @param {Window} window the window of the page containing the pdf viewer. * @param {Object} plugin the plugin element containing the pdf viewer. */ function PDFScriptingAPI(window, plugin) { this.loadState_ = LoadState.LOADING; this.pendingScriptingMessages_ = []; this.setPlugin(plugin); window.addEventListener('message', function(event) { if (event.origin != 'chrome-extension://mhjfbmdgcfjbbpaeojofohoefgiehjai') { console.error('Received message that was not from the extension: ' + event); return; } switch (event.data.type) { case 'viewport': if (this.viewportChangedCallback_) this.viewportChangedCallback_(event.data.pageX, event.data.pageY, event.data.pageWidth, event.data.viewportWidth, event.data.viewportHeight); break; case 'documentLoaded': this.loadState_ = event.data.load_state; if (this.loadCallback_) this.loadCallback_(this.loadState_ == LoadState.SUCCESS); break; case 'getAccessibilityJSONReply': if (this.accessibilityCallback_) { this.accessibilityCallback_(event.data.json); this.accessibilityCallback_ = null; } break; case 'getSelectedTextReply': if (this.selectedTextCallback_) { this.selectedTextCallback_(event.data.selectedText); this.selectedTextCallback_ = null; } break; case 'sendKeyEvent': if (this.keyEventCallback_) this.keyEventCallback_(DeserializeKeyEvent(event.data.keyEvent)); break; } }.bind(this), false); } PDFScriptingAPI.prototype = { /** * @private * Send a message to the extension. If messages try to get sent before there * is a plugin element set, then we queue them up and send them later (this * can happen in print preview). * @param {Object} message The message to send. */ sendMessage_: function(message) { if (this.plugin_) this.plugin_.postMessage(message, '*'); else this.pendingScriptingMessages_.push(message); }, /** * Sets the plugin element containing the PDF viewer. The element will usually * be passed into the PDFScriptingAPI constructor but may also be set later. * @param {Object} plugin the plugin element containing the PDF viewer. */ setPlugin: function(plugin) { this.plugin_ = plugin; if (this.plugin_) { // Send a message to ensure the postMessage channel is initialized which // allows us to receive messages. this.sendMessage_({ type: 'initialize' }); // Flush pending messages. while (this.pendingScriptingMessages_.length > 0) this.sendMessage_(this.pendingScriptingMessages_.shift()); } }, /** * Sets the callback which will be run when the PDF viewport changes. * @param {Function} callback the callback to be called. */ setViewportChangedCallback: function(callback) { this.viewportChangedCallback_ = callback; }, /** * Sets the callback which will be run when the PDF document has finished * loading. If the document is already loaded, it will be run immediately. * @param {Function} callback the callback to be called. */ setLoadCallback: function(callback) { this.loadCallback_ = callback; if (this.loadState_ != LoadState.LOADING && this.loadCallback_) this.loadCallback_(this.loadState_ == LoadState.SUCCESS); }, /** * Sets a callback that gets run when a key event is fired in the PDF viewer. * @param {Function} callback the callback to be called with a key event. */ setKeyEventCallback: function(callback) { this.keyEventCallback_ = callback; }, /** * Resets the PDF viewer into print preview mode. * @param {string} url the url of the PDF to load. * @param {boolean} grayscale whether or not to display the PDF in grayscale. * @param {Array} pageNumbers an array of the page numbers. * @param {boolean} modifiable whether or not the document is modifiable. */ resetPrintPreviewMode: function(url, grayscale, pageNumbers, modifiable) { this.loadState_ = LoadState.LOADING; this.sendMessage_({ type: 'resetPrintPreviewMode', url: url, grayscale: grayscale, pageNumbers: pageNumbers, modifiable: modifiable }); }, /** * Load a page into the document while in print preview mode. * @param {string} url the url of the pdf page to load. * @param {number} index the index of the page to load. */ loadPreviewPage: function(url, index) { this.sendMessage_({ type: 'loadPreviewPage', url: url, index: index }); }, /** * Get accessibility JSON for the document. May only be called after document * load. * @param {Function} callback a callback to be called with the accessibility * json that has been retrieved. * @param {number} [page] the 0-indexed page number to get accessibility data * for. If this is not provided, data about the entire document is * returned. * @return {boolean} true if the function is successful, false if there is an * outstanding request for accessibility data that has not been answered. */ getAccessibilityJSON: function(callback, page) { if (this.accessibilityCallback_) return false; this.accessibilityCallback_ = callback; var message = { type: 'getAccessibilityJSON', }; if (page || page == 0) message.page = page; this.sendMessage_(message); return true; }, /** * Select all the text in the document. May only be called after document * load. */ selectAll: function() { this.sendMessage_({ type: 'selectAll' }); }, /** * Get the selected text in the document. The callback will be called with the * text that is selected. May only be called after document load. * @param {Function} callback a callback to be called with the selected text. * @return {boolean} true if the function is successful, false if there is an * outstanding request for selected text that has not been answered. */ getSelectedText: function(callback) { if (this.selectedTextCallback_) return false; this.selectedTextCallback_ = callback; this.sendMessage_({ type: 'getSelectedText' }); return true; }, /** * Print the document. May only be called after document load. */ print: function() { this.sendMessage_({ type: 'print' }); }, /** * Send a key event to the extension. * @param {Event} keyEvent the key event to send to the extension. */ sendKeyEvent: function(keyEvent) { this.sendMessage_({ type: 'sendKeyEvent', keyEvent: SerializeKeyEvent(keyEvent) }); }, }; /** * Creates a PDF viewer with a scripting interface. This is basically 1) an * iframe which is navigated to the PDF viewer extension and 2) a scripting * interface which provides access to various features of the viewer for use * by print preview and accessibility. * @param {string} src the source URL of the PDF to load initially. * @return {HTMLIFrameElement} the iframe element containing the PDF viewer. */ function PDFCreateOutOfProcessPlugin(src) { var client = new PDFScriptingAPI(window); var iframe = window.document.createElement('iframe'); // Prevent the frame from being tab-focusable. iframe.setAttribute('tabindex', '-1'); // TODO(raymes): This below is a hack to tell if the material design PDF UI // has been enabled. Remove this as soon as we remove the material design PDF // flag. var EXTENSION_URL = 'chrome-extension://mhjfbmdgcfjbbpaeojofohoefgiehjai/'; var PAGE_NAME = 'index.html'; var MATERIAL_PAGE_NAME = 'index-material.html'; fetch(EXTENSION_URL + PAGE_NAME, { method: 'get' }).then(function() { iframe.setAttribute('src', EXTENSION_URL + PAGE_NAME + '?' + src); }, function() { iframe.setAttribute('src', EXTENSION_URL + MATERIAL_PAGE_NAME + '?' + src); }).then(function() { iframe.onload = function() { client.setPlugin(iframe.contentWindow); }; }); // Add the functions to the iframe so that they can be called directly. iframe.setViewportChangedCallback = client.setViewportChangedCallback.bind(client); iframe.setLoadCallback = client.setLoadCallback.bind(client); iframe.setKeyEventCallback = client.setKeyEventCallback.bind(client); iframe.resetPrintPreviewMode = client.resetPrintPreviewMode.bind(client); iframe.loadPreviewPage = client.loadPreviewPage.bind(client); iframe.sendKeyEvent = client.sendKeyEvent.bind(client); return iframe; } // Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. 'use strict'; /** * A class that manages updating the browser with zoom changes. */ class ZoomManager { /** * Constructs a ZoomManager * @param {!Viewport} viewport A Viewport for which to manage zoom. * @param {Function} setBrowserZoomFunction A function that sets the browser * zoom to the provided value. * @param {number} initialZoom The initial browser zoom level. */ constructor(viewport, setBrowserZoomFunction, initialZoom) { this.viewport_ = viewport; this.setBrowserZoomFunction_ = setBrowserZoomFunction; this.browserZoom_ = initialZoom; this.changingBrowserZoom_ = null; } /** * Invoked when a browser-initiated zoom-level change occurs. * @param {number} newZoom the zoom level to zoom to. */ onBrowserZoomChange(newZoom) { // If we are changing the browser zoom level, ignore any browser zoom level // change events. Either, the change occurred before our update and will be // overwritten, or the change being reported is the change we are making, // which we have already handled. if (this.changingBrowserZoom_) return; if (this.floatingPointEquals(this.browserZoom_, newZoom)) return; this.browserZoom_ = newZoom; this.viewport_.setZoom(newZoom); } /** * Invoked when an extension-initiated zoom-level change occurs. */ onPdfZoomChange() { // If we are already changing the browser zoom level in response to a // previous extension-initiated zoom-level change, ignore this zoom change. // Once the browser zoom level is changed, we check whether the extension's // zoom level matches the most recently sent zoom level. if (this.changingBrowserZoom_) return; let zoom = this.viewport_.zoom; if (this.floatingPointEquals(this.browserZoom_, zoom)) return; this.changingBrowserZoom_ = this.setBrowserZoomFunction_(zoom).then( function() { this.browserZoom_ = zoom; this.changingBrowserZoom_ = null; // The extension's zoom level may have changed while the browser zoom // change was in progress. We call back into onPdfZoomChange to ensure the // browser zoom is up to date. this.onPdfZoomChange(); }.bind(this)); } /** * Returns whether two numbers are approximately equal. * @param {number} a The first number. * @param {number} b The second number. */ floatingPointEquals(a, b) { let MIN_ZOOM_DELTA = 0.01; // If the zoom level is close enough to the current zoom level, don't // change it. This avoids us getting into an infinite loop of zoom changes // due to floating point error. return Math.abs(a - b) <= MIN_ZOOM_DELTA; } }; // Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. 'use strict'; /** * Returns a promise that will resolve to the default zoom factor. * @param {!Object} streamInfo The stream object pointing to the data contained * in the PDF. * @return {Promise} A promise that will resolve to the default zoom * factor. */ function lookupDefaultZoom(streamInfo) { // Webviews don't run in tabs so |streamInfo.tabId| is -1 when running within // a webview. if (!chrome.tabs || streamInfo.tabId < 0) return Promise.resolve(1); return new Promise(function(resolve, reject) { chrome.tabs.getZoomSettings(streamInfo.tabId, function(zoomSettings) { resolve(zoomSettings.defaultZoomFactor); }); }); } /** * Returns a promise that will resolve to the initial zoom factor * upon starting the plugin. This may differ from the default zoom * if, for example, the page is zoomed before the plugin is run. * @param {!Object} streamInfo The stream object pointing to the data contained * in the PDF. * @return {Promise} A promise that will resolve to the initial zoom * factor. */ function lookupInitialZoom(streamInfo) { // Webviews don't run in tabs so |streamInfo.tabId| is -1 when running within // a webview. if (!chrome.tabs || streamInfo.tabId < 0) return Promise.resolve(1); return new Promise(function(resolve, reject) { chrome.tabs.getZoom(streamInfo.tabId, resolve); }); } /** * A class providing an interface to the browser. */ class BrowserApi { /** * @constructor * @param {!Object} streamInfo The stream object which points to the data * contained in the PDF. * @param {number} defaultZoom The default browser zoom. * @param {number} initialZoom The initial browser zoom * upon starting the plugin. * @param {boolean} manageZoom Whether to manage zoom. */ constructor(streamInfo, defaultZoom, initialZoom, manageZoom) { this.streamInfo_ = streamInfo; this.defaultZoom_ = defaultZoom; this.initialZoom_ = initialZoom; this.manageZoom_ = manageZoom; } /** * Returns a promise to a BrowserApi. * @param {!Object} streamInfo The stream object pointing to the data * contained in the PDF. * @param {boolean} manageZoom Whether to manage zoom. */ static create(streamInfo, manageZoom) { return Promise.all([ lookupDefaultZoom(streamInfo), lookupInitialZoom(streamInfo) ]).then(function(zoomFactors) { return new BrowserApi( streamInfo, zoomFactors[0], zoomFactors[1], manageZoom); }); } /** * Returns the stream info pointing to the data contained in the PDF. * @return {Object} The stream info object. */ getStreamInfo() { return this.streamInfo_; } /** * Aborts the stream. */ abortStream() { if (chrome.mimeHandlerPrivate) chrome.mimeHandlerPrivate.abortStream(); } /** * Sets the browser zoom. * @param {number} zoom The zoom factor to send to the browser. * @return {Promise} A promise that will be resolved when the browser zoom * has been updated. */ setZoom(zoom) { if (!this.manageZoom_) return Promise.resolve(); return new Promise(function(resolve, reject) { chrome.tabs.setZoom(this.streamInfo_.tabId, zoom, resolve); }.bind(this)); } /** * Returns the default browser zoom factor. * @return {number} The default browser zoom factor. */ getDefaultZoom() { return this.defaultZoom_; } /** * Returns the initial browser zoom factor. * @return {number} The initial browser zoom factor. */ getInitialZoom() { return this.initialZoom_; } /** * Adds an event listener to be notified when the browser zoom changes. * @param {function} listener The listener to be called with the new zoom * factor. */ addZoomEventListener(listener) { if (!this.manageZoom_) return; chrome.tabs.onZoomChange.addListener(function(zoomChangeInfo) { if (zoomChangeInfo.tabId != this.streamInfo_.tabId) return; listener(zoomChangeInfo.newZoomFactor); }.bind(this)); } }; /** * Creates a BrowserApi for an extension running as a mime handler. * @return {Promise} A promise to a BrowserApi instance constructed * using the mimeHandlerPrivate API. */ function createBrowserApiForMimeHandlerView() { return new Promise(function(resolve, reject) { chrome.mimeHandlerPrivate.getStreamInfo(resolve); }).then(function(streamInfo) { let manageZoom = !streamInfo.embedded && streamInfo.tabId != -1; return new Promise(function(resolve, reject) { if (!manageZoom) { resolve(); return; } chrome.tabs.setZoomSettings( streamInfo.tabId, {mode: 'manual', scope: 'per-tab'}, resolve); }).then(function() { return BrowserApi.create(streamInfo, manageZoom); }); }); } /** * Creates a BrowserApi instance for an extension not running as a mime handler. * @return {Promise} A promise to a BrowserApi instance constructed * from the URL. */ function createBrowserApiForStandaloneExtension() { let url = window.location.search.substring(1); let streamInfo = { streamUrl: url, originalUrl: url, responseHeaders: {}, embedded: window.parent != window, tabId: -1, }; return new Promise(function(resolve, reject) { if (!chrome.tabs) { resolve(); return; } chrome.tabs.getCurrent(function(tab) { streamInfo.tabId = tab.id; resolve(); }); }).then(function() { return BrowserApi.create(streamInfo, false); }); } /** * Returns a promise that will resolve to a BrowserApi instance. * @return {Promise} A promise to a BrowserApi instance for the * current environment. */ function createBrowserApi() { if (window.location.search) return createBrowserApiForStandaloneExtension(); return createBrowserApiForMimeHandlerView(); } // Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // This is to work-around an issue where this extension is not granted // permission to access chrome://resources when iframed for print preview. // See https://crbug.com/444752. /* Copyright 2015 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ :root { --iron-icon-height: 20px; --iron-icon-width: 20px; --paper-icon-button: { height: 20px; padding: 6px; width: 20px; }; --paper-icon-button-ink-color: rgb(189, 189, 189); --viewer-icon-ink-color: rgb(189, 189, 189); } /* Copyright 2015 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #item { @apply(--layout-center); @apply(--layout-horizontal); color: rgb(80, 80, 80); cursor: pointer; font-size: 77.8%; height: 30px; position: relative; } #item:hover { background-color: rgb(237, 237, 237); color: rgb(20, 20, 20); } #title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; } #expand { --iron-icon-height: 16px; --iron-icon-width: 16px; --paper-icon-button-ink-color: var(--paper-grey-900); height: 16px; min-width: 16px; padding: 6px; transition: transform 150ms; width: 16px; } :host-context([dir=rtl]) #expand { transform: rotate(180deg); } :host([children-shown]) #expand { transform: rotate(90deg); } // Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. (function() { /** Amount that each level of bookmarks is indented by (px). */ var BOOKMARK_INDENT = 20; Polymer({ is: 'viewer-bookmark', properties: { /** * A bookmark object, each containing a: * - title * - page (optional) * - children (an array of bookmarks) */ bookmark: { type: Object, observer: 'bookmarkChanged_' }, depth: { type: Number, observer: 'depthChanged' }, childDepth: Number, childrenShown: { type: Boolean, reflectToAttribute: true, value: false }, keyEventTarget: { type: Object, value: function() { return this.$.item; } } }, behaviors: [ Polymer.IronA11yKeysBehavior ], keyBindings: { 'enter': 'onEnter_', 'space': 'onSpace_' }, bookmarkChanged_: function() { this.$.expand.style.visibility = this.bookmark.children.length > 0 ? 'visible' : 'hidden'; }, depthChanged: function() { this.childDepth = this.depth + 1; this.$.item.style.webkitPaddingStart = (this.depth * BOOKMARK_INDENT) + 'px'; }, onClick: function() { if (this.bookmark.hasOwnProperty('page')) this.fire('change-page', {page: this.bookmark.page}); }, onEnter_: function(e) { // Don't allow events which have propagated up from the expand button to // trigger a click. if (e.detail.keyboardEvent.target != this.$.expand) this.onClick(); }, onSpace_: function(e) { // paper-icon-button stops propagation of space events, so there's no need // to check the event source here. this.onClick(); // Prevent default space scroll behavior. e.detail.keyboardEvent.preventDefault(); }, toggleChildren: function(e) { this.childrenShown = !this.childrenShown; e.stopPropagation(); // Prevent the above onClick handler from firing. } }); })(); // Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. Polymer({ is: 'viewer-bookmarks-content' }); /* Copyright 2013 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #icon { background-position: center center; background-repeat: no-repeat; background-size: 100% 100%; height: 100%; width: 100%; } :host { -webkit-user-select: none; background-image: linear-gradient(rgb(60, 80, 119), rgb(15, 24, 41)); border: 1px solid rgb(11, 9, 16); cursor: default; display: inline-block; height: 36px; margin: 0; pointer-events: all; width: 43px; } :host(:focus:host) { outline: none; } :host(:hover:host) { background-image: linear-gradient(rgb(73, 102, 155), rgb(32, 52, 95)); } :host(.latchable.polymer-selected:host), :host(:active:host) { background-color: rgb(75, 103, 156); background-image: none; } // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. (function() { var dpi = ''; Polymer({ is: 'viewer-button', properties: { img: { type: String, observer: 'imgChanged' }, latchable: { type: Boolean, observer: 'latchableChanged' } }, created: function() { if (!dpi) { var mql = window.matchMedia('(-webkit-min-device-pixel-ratio: 1.3'); dpi = mql.matches ? 'hi' : 'low'; } }, imgChanged: function() { if (this.img) { this.$.icon.style.backgroundImage = 'url(' + this.getAttribute('assetpath') + 'img/' + dpi + 'DPI/' + this.img + ')'; } else { this.$.icon.style.backgroundImage = ''; } }, latchableChanged: function() { if (this.latchable) this.classList.add('latchable'); else this.classList.remove('latchable'); }, }); })(); /* Copyright 2015 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ .last-item { margin-bottom: 24px; } // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. Polymer({ is: 'viewer-error-screen', properties: { strings: Object, reloadFn: { type: Object, value: null, observer: 'reloadFnChanged_' } }, reloadFnChanged_: function() { // The default margins in paper-dialog don't work well with hiding/showing // the .buttons div. We need to manually manage the bottom margin to get // around this. if (this.reloadFn) this.$['load-failed-message'].classList.remove('last-item'); else this.$['load-failed-message'].classList.add('last-item'); }, show: function() { this.$.dialog.open(); }, reload: function() { if (this.reloadFn) this.reloadFn(); } }); /* Copyright 2015 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ :host { background-color: #ccc; color: #555; font-family: sans-serif; font-size: 20px; height: 100%; pointer-events: none; position: fixed; text-align: center; width: 100%; } #load-failed-message { line-height: 0; position: absolute; top: 50%; width: 100%; } // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. Polymer({ is: 'viewer-error-screen-legacy', properties: { text: String }, show: function() { this.style.visibility = 'visible'; } }); /* Copyright 2013 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ :host { -webkit-transition: opacity 400ms ease-in-out; pointer-events: none; position: fixed; right: 0; } #text { background-color: rgba(0, 0, 0, 0.5); border-radius: 5px; color: white; float: left; font-family: sans-serif; font-size: 12px; font-weight: bold; line-height: 48px; text-align: center; text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.8); width: 62px; } #triangle-right { border-bottom: 6px solid transparent; border-left: 8px solid rgba(0, 0, 0, 0.5); border-top: 6px solid transparent; display: inline; float: left; height: 0; margin-top: 18px; width: 0; } // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. Polymer({ is: 'viewer-page-indicator', properties: { label: { type: String, value: '1' }, index: { type: Number, observer: 'indexChanged' }, pageLabels: { type: Array, value: null, observer: 'pageLabelsChanged' } }, timerId: undefined, ready: function() { var callback = this.fadeIn.bind(this, 2000); window.addEventListener('scroll', function() { requestAnimationFrame(callback); }); }, initialFadeIn: function() { this.fadeIn(6000); }, fadeIn: function(displayTime) { var percent = window.scrollY / (document.body.scrollHeight - document.documentElement.clientHeight); this.style.top = percent * (document.documentElement.clientHeight - this.offsetHeight) + 'px'; this.style.opacity = 1; clearTimeout(this.timerId); this.timerId = setTimeout(function() { this.style.opacity = 0; this.timerId = undefined; }.bind(this), displayTime); }, pageLabelsChanged: function() { this.indexChanged(); }, indexChanged: function() { if (this.pageLabels) this.label = this.pageLabels[this.index]; else this.label = String(this.index + 1); } }); /* Copyright 2015 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ :host { color: #fff; font-size: 88.8%; } #pageselector { --paper-input-container-underline: { visibility: hidden; }; --paper-input-container-underline-focus: { visibility: hidden; }; display: inline-block; padding: 0; width: 1ch; } input#input { -webkit-margin-start: -3px; color: #fff; line-height: 18px; padding: 3px; text-align: end; } input#input:focus, input#input:hover { background-color: rgba(0, 0, 0, 0.5); border-radius: 2px; } #slash { padding: 0 3px; } #pagelength-spacer { display: inline-block; text-align: start; } #slash, #pagelength { font-size: 81.25%; } // Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. Polymer({ is: 'viewer-page-selector', properties: { /** * The number of pages the document contains. */ docLength: { type: Number, value: 1, observer: 'docLengthChanged' }, /** * The current page being viewed (1-based). A change to pageNo is mirrored * immediately to the input field. A change to the input field is not * mirrored back until pageNoCommitted() is called and change-page is fired. */ pageNo: { type: Number, value: 1 }, strings: Object }, pageNoCommitted: function() { var page = parseInt(this.$.input.value); if (!isNaN(page) && page <= this.docLength && page > 0) this.fire('change-page', {page: page - 1}); else this.$.input.value = this.pageNo; this.$.input.blur(); }, docLengthChanged: function() { var numDigits = this.docLength.toString().length; this.$.pageselector.style.width = numDigits + 'ch'; // Set both sides of the slash to the same width, so that the layout is // exactly centered. this.$['pagelength-spacer'].style.width = numDigits + 'ch'; }, select: function() { this.$.input.select(); }, /** * @return {boolean} True if the selector input field is currently focused. */ isActive: function() { return this.shadowRoot.activeElement == this.$.input; } }); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. Polymer({ is: 'viewer-password-screen', properties: { strings: Object, invalid: Boolean, active: { type: Boolean, value: false, observer: 'activeChanged' } }, ready: function() { this.activeChanged(); }, accept: function() { this.active = false; }, deny: function() { this.$.password.disabled = false; this.$.submit.disabled = false; this.invalid = true; this.$.password.focus(); this.$.password.select(); }, handleKey: function(e) { if (e.keyCode == 13) this.submit(); }, submit: function() { if (this.$.password.value.length == 0) return; this.$.password.disabled = true; this.$.submit.disabled = true; this.fire('password-submitted', {password: this.$.password.value}); }, activeChanged: function() { if (this.active) { this.$.dialog.open(); this.$.password.focus(); } else { this.$.dialog.close(); } } }); /* Copyright 2015 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ :host { -webkit-transition: opacity 400ms ease-in-out; background-color: #ccc; color: #555; display: table; font-family: sans-serif; font-size: 15px; height: 100%; pointer-events: none; position: fixed; text-align: center; width: 100%; } #message { padding-bottom: 10px; } .center { display: table-cell; vertical-align: middle; } .form { border: 1px solid #777; box-shadow: 1px 1px 1px; display: inline-block; padding: 10px; width: 300px; } input { color: #333; pointer-events: all; } // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. Polymer({ is: 'viewer-password-screen-legacy', properties: { text: { type: String, value: 'This document is password protected. Please enter a password.', }, active: { type: Boolean, value: false, observer: 'activeChanged' } }, timerId: undefined, ready: function() { this.activeChanged(); }, accept: function() { this.active = false; }, deny: function() { this.$.password.disabled = false; this.$.submit.disabled = false; this.$.password.focus(); this.$.password.select(); }, submit: function(e) { // Prevent the default form submission behavior. e.preventDefault(); if (this.$.password.value.length == 0) return; this.$.password.disabled = true; this.$.submit.disabled = true; this.fire('password-submitted', {password: this.$.password.value}); }, activeChanged: function() { clearTimeout(this.timerId); this.timerId = undefined; if (this.active) { this.style.visibility = 'visible'; this.style.opacity = 1; this.$.password.focus(); } else { this.style.opacity = 0; this.timerId = setTimeout(function() { this.style.visibility = 'hidden'; }.bind(this), 400); } } }); /* Copyright 2015 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ /* We introduce a wrapper aligner element as setting the relevant attributes * (horizontal justified layout center) have no effect on the core-toolbar. */ #aligner { padding: 0 16px; width: 100%; } #title { font-size: 77.8%; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; } #pageselector-container { text-align: center; /* The container resizes according to the width of the toolbar. On small * screens with large numbers of pages, overflow page numbers without * wrapping. */ white-space: nowrap; } #buttons { -webkit-user-select: none; text-align: end; } paper-icon-button { -webkit-margin-end: 12px; } viewer-toolbar-dropdown { -webkit-margin-end: 4px; } paper-progress { --paper-progress-active-color: var(--google-blue-300); --paper-progress-container-color: transparent; --paper-progress-height: 3px; transition: opacity 150ms; width: 100%; } paper-toolbar { --paper-toolbar-background: rgb(50, 54, 57); @apply(--shadow-elevation-2dp); color: rgb(241, 241, 241); font-size: 1.5em; height: 48px; } paper-toolbar /deep/ ::selection { background: rgba(255, 255, 255, 0.3); } paper-toolbar /deep/ .toolbar-tools { height: 48px; } .invisible { visibility: hidden; } @media(max-width: 675px) { #bookmarks, #rotate-left { display: none; } #pageselector-container { flex: 2; } } @media(max-width: 450px) { #rotate-right { display: none; } } @media(max-width: 400px) { #buttons, #pageselector-container { display: none; } } // Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. (function() { Polymer({ is: 'viewer-pdf-toolbar', behaviors: [ Polymer.NeonAnimationRunnerBehavior ], properties: { strings: Object, /** * The current loading progress of the PDF document (0 - 100). */ loadProgress: { type: Number, observer: 'loadProgressChanged' }, /** * The title of the PDF document. */ docTitle: String, /** * The number of the page being viewed (1-based). */ pageNo: Number, /** * Tree of PDF bookmarks (or null if the document has no bookmarks). */ bookmarks: { type: Object, value: null }, /** * The number of pages in the PDF document. */ docLength: Number, /** * Whether the toolbar is opened and visible. */ opened: { type: Boolean, value: true }, animationConfig: { value: function() { return { 'entry': { name: 'slide-down-animation', node: this, timing: { easing: 'cubic-bezier(0, 0, 0.2, 1)', duration: 250 } }, 'exit': { name: 'slide-up-animation', node: this, timing: { easing: 'cubic-bezier(0.4, 0, 1, 1)', duration: 250 } } }; } } }, listeners: { 'neon-animation-finish': '_onAnimationFinished' }, _onAnimationFinished: function() { this.style.transform = this.opened ? 'none' : 'translateY(-100%)'; }, loadProgressChanged: function() { if (this.loadProgress >= 100) { this.$.pageselector.classList.toggle('invisible', false); this.$.buttons.classList.toggle('invisible', false); this.$.progress.style.opacity = 0; } }, hide: function() { if (this.opened) this.toggleVisibility(); }, show: function() { if (!this.opened) { this.toggleVisibility(); } }, toggleVisibility: function() { this.opened = !this.opened; this.cancelAnimation(); this.playAnimation(this.opened ? 'entry' : 'exit'); }, selectPageNumber: function() { this.$.pageselector.select(); }, shouldKeepOpen: function() { return this.$.bookmarks.dropdownOpen || this.loadProgress < 100 || this.$.pageselector.isActive(); }, hideDropdowns: function() { if (this.$.bookmarks.dropdownOpen) { this.$.bookmarks.toggleDropdown(); return true; } return false; }, setDropdownLowerBound: function(lowerBound) { this.$.bookmarks.lowerBound = lowerBound; }, rotateLeft: function() { this.fire('rotate-left'); }, rotateRight: function() { this.fire('rotate-right'); }, save: function() { this.fire('save'); }, print: function() { this.fire('print'); } }); })(); /* Copyright 2013 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ :host { -webkit-transition: opacity 400ms ease-in-out; background: rgb(29, 39, 57); border-radius: 5px; bottom: 26px; box-shadow: 0 1px 2px gray, 0 3px 3px rgba(0, 0, 0, .2); height: auto; left: 26px; pointer-events: none; position: fixed; width: auto; } .scaler { -webkit-transform: scale(0.25); -webkit-transform-origin: 0 0; float: left; height: 44px; margin: 8px; width: 44px; } #segments { border-radius: 50%; height: 176px; list-style: none; margin: 0; overflow: hidden; padding: 0; position: absolute; width: 176px; } .segment { -webkit-transform-origin: 0 100%; background: rgb(227, 234, 249); box-shadow: 0 0 0 6px rgb(29, 39, 57) inset; height: 50%; overflow: hidden; position: absolute; right: 0; top: 0; width: 50%; } .center-circle { background-color: rgb(29, 39, 57); border-radius: 50%; height: 80px; left: 48px; margin: 0; padding: 0; position: absolute; top: 48px; width: 80px; } #text { color: rgb(227, 234, 249); float: left; font-family: sans-serif; font-size: 16px; font-weight: bold; line-height: 58px; margin-right: 10px; margin-top: 1px; } // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. Polymer({ is: 'viewer-progress-bar', properties: { progress: { type: Number, observer: 'progressChanged' }, text: { type: String, value: 'Loading' }, numSegments: { type: Number, value: 8, observer: 'numSegmentsChanged' } }, segments: [], ready: function() { this.numSegmentsChanged(); }, progressChanged: function() { var numVisible = this.progress * this.segments.length / 100.0; for (var i = 0; i < this.segments.length; i++) { this.segments[i].style.visibility = i < numVisible ? 'inherit' : 'hidden'; } if (this.progress >= 100 || this.progress < 0) this.style.opacity = 0; }, numSegmentsChanged: function() { // Clear the existing segments. this.segments = []; var segmentsElement = this.$.segments; segmentsElement.innerHTML = ''; // Create the new segments. var segment = document.createElement('li'); segment.classList.add('segment'); var angle = 360 / this.numSegments; for (var i = 0; i < this.numSegments; ++i) { var segmentCopy = segment.cloneNode(true); segmentCopy.style.webkitTransform = 'rotate(' + (i * angle) + 'deg) skewY(' + -1 * (90 - angle) + 'deg)'; segmentsElement.appendChild(segmentCopy); this.segments.push(segmentCopy); } this.progressChanged(); } }); /* Copyright 2013 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ :host { -webkit-transition: opacity 400ms ease-in-out; bottom: 0; display: block; font-size: 0; opacity: 1; padding: 30px 30px 15px 30vw; pointer-events: none; position: fixed; right: 0; } #toolbar { border-radius: 3px; box-shadow: 0 1px 2px gray, 0 3px 3px rgba(0, 0, 0, .2); overflow: hidden; } // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. Polymer({ is: 'viewer-toolbar', properties: { fadingIn: { type: Boolean, value: false, observer: 'fadingInChanged' } }, timerId_: undefined, inInitialFadeIn_: false, ready: function() { this.mousemoveCallback = function(e) { var rect = this.getBoundingClientRect(); if (e.clientX >= rect.left && e.clientX <= rect.right && e.clientY >= rect.top && e.clientY <= rect.bottom) { this.fadingIn = true; // If we hover over the toolbar, cancel the initial fade in. if (this.inInitialFadeIn_) this.inInitialFadeIn_ = false; } else { // Initially we want to keep the toolbar up for a longer period. if (!this.inInitialFadeIn_) this.fadingIn = false; } }.bind(this); }, attached: function() { this.parentNode.addEventListener('mousemove', this.mousemoveCallback); }, detached: function() { this.parentNode.removeEventListener('mousemove', this.mousemoveCallback); }, initialFadeIn: function() { this.inInitialFadeIn_ = true; this.fadeIn(); this.fadeOutAfterDelay(6000); }, fadingInChanged: function() { if (this.fadingIn) { this.fadeIn(); } else { if (this.timerId_ === undefined) this.fadeOutAfterDelay(3000); } }, fadeIn: function() { this.style.opacity = 1; clearTimeout(this.timerId_); this.timerId_ = undefined; }, fadeOutAfterDelay: function(delay) { this.timerId_ = setTimeout( function() { this.style.opacity = 0; this.timerId_ = undefined; this.inInitialFadeIn_ = false; }.bind(this), delay); } }); /* Copyright 2015 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ :host { display: inline-block; text-align: start; } #container { position: absolute; } paper-material { background-color: rgb(256, 256, 256); border-radius: 4px; overflow-y: hidden; padding-bottom: 2px; width: 260px; } #scroll-container { max-height: 300px; overflow-y: auto; padding: 6px 0 4px 0; } #icon { cursor: pointer; display: inline-block; } :host([dropdown-open]) #icon { background-color: rgb(25, 27, 29); border-radius: 4px; } #arrow { -webkit-margin-start: -12px; -webkit-padding-end: 4px; } h1 { border-bottom: 1px solid rgb(219, 219, 219); color: rgb(33, 33, 33); font-size: 77.8%; font-weight: 500; margin: 0; padding: 14px 28px; } // Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. (function() { /** * Size of additional padding in the inner scrollable section of the dropdown. */ var DROPDOWN_INNER_PADDING = 12; /** Size of vertical padding on the outer #dropdown element. */ var DROPDOWN_OUTER_PADDING = 2; /** Minimum height of toolbar dropdowns (px). */ var MIN_DROPDOWN_HEIGHT = 200; Polymer({ is: 'viewer-toolbar-dropdown', properties: { /** String to be displayed at the top of the dropdown. */ header: String, /** Icon to display when the dropdown is closed. */ closedIcon: String, /** Icon to display when the dropdown is open. */ openIcon: String, /** True if the dropdown is currently open. */ dropdownOpen: { type: Boolean, reflectToAttribute: true, value: false }, /** Toolbar icon currently being displayed. */ dropdownIcon: { type: String, computed: 'computeIcon_(dropdownOpen, closedIcon, openIcon)' }, /** Lowest vertical point that the dropdown should occupy (px). */ lowerBound: { type: Number, observer: 'lowerBoundChanged_' }, /** * True if the max-height CSS property for the dropdown scroll container * is valid. If false, the height will be updated the next time the * dropdown is visible. */ maxHeightValid_: false, /** Current animation being played, or null if there is none. */ animation_: Object }, computeIcon_: function(dropdownOpen, closedIcon, openIcon) { return dropdownOpen ? openIcon : closedIcon; }, lowerBoundChanged_: function() { this.maxHeightValid_ = false; if (this.dropdownOpen) this.updateMaxHeight(); }, toggleDropdown: function() { this.dropdownOpen = !this.dropdownOpen; if (this.dropdownOpen) { this.$.dropdown.style.display = 'block'; if (!this.maxHeightValid_) this.updateMaxHeight(); } this.cancelAnimation_(); this.playAnimation_(this.dropdownOpen); }, updateMaxHeight: function() { var scrollContainer = this.$['scroll-container']; var height = this.lowerBound - scrollContainer.getBoundingClientRect().top - DROPDOWN_INNER_PADDING; height = Math.max(height, MIN_DROPDOWN_HEIGHT); scrollContainer.style.maxHeight = height + 'px'; this.maxHeightValid_ = true; }, cancelAnimation_: function() { if (this._animation) this._animation.cancel(); }, /** * Start an animation on the dropdown. * @param {boolean} isEntry True to play entry animation, false to play * exit. * @private */ playAnimation_: function(isEntry) { this.animation_ = isEntry ? this.animateEntry_() : this.animateExit_(); this.animation_.onfinish = function() { this.animation_ = null; if (!this.dropdownOpen) this.$.dropdown.style.display = 'none'; }.bind(this); }, animateEntry_: function() { var maxHeight = this.$.dropdown.getBoundingClientRect().height - DROPDOWN_OUTER_PADDING; if (maxHeight < 0) maxHeight = 0; var fade = new KeyframeEffect(this.$.dropdown, [ {opacity: 0}, {opacity: 1} ], {duration: 150, easing: 'cubic-bezier(0, 0, 0.2, 1)'}); var slide = new KeyframeEffect(this.$.dropdown, [ {height: '20px', transform: 'translateY(-10px)'}, {height: maxHeight + 'px', transform: 'translateY(0)'} ], {duration: 250, easing: 'cubic-bezier(0, 0, 0.2, 1)'}); return document.timeline.play(new GroupEffect([fade, slide])); }, animateExit_: function() { return this.$.dropdown.animate([ {transform: 'translateY(0)', opacity: 1}, {transform: 'translateY(-5px)', opacity: 0} ], {duration: 100, easing: 'cubic-bezier(0.4, 0, 1, 1)'}); } }); })(); /* Copyright 2015 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #wrapper { transition: transform 250ms; transition-timing-function: cubic-bezier(0, 0, 0.2, 1); } :host([closed]) #wrapper { transform: translateX(100%); transition-timing-function: cubic-bezier(0.4, 0, 1, 1); } :host-context([dir=rtl]):host([closed]) #wrapper { transform: translateX(-100%); } paper-fab { --paper-fab-keyboard-focus-background: var(--viewer-icon-ink-color); --paper-fab-mini: { height: 36px; padding: 8px; width: 36px; }; @apply(--shadow-elevation-4dp); background-color: rgb(242, 242, 242); color: rgb(96, 96, 96); margin: 0 48px; overflow: visible; } // Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. Polymer({ is: 'viewer-zoom-button', properties: { /** * Icons to be displayed on the FAB. Multiple icons should be separated with * spaces, and will be cycled through every time the FAB is clicked. */ icons: String, /** * Array version of the list of icons. Polymer does not allow array * properties to be set from HTML, so we must use a string property and * perform the conversion manually. * @private */ icons_: { type: Array, value: [''], computed: 'computeIconsArray_(icons)' }, tooltips: Array, closed: { type: Boolean, reflectToAttribute: true, value: false }, delay: { type: Number, observer: 'delayChanged_' }, /** * Index of the icon currently being displayed. */ activeIndex: { type: Number, value: 0 }, /** * Icon currently being displayed on the FAB. * @private */ visibleIcon_: { type: String, computed: 'computeVisibleIcon_(icons_, activeIndex)' }, visibleTooltip_: { type: String, computed: 'computeVisibleTooltip_(tooltips, activeIndex)' } }, computeIconsArray_: function(icons) { return icons.split(' '); }, computeVisibleIcon_: function(icons, activeIndex) { return icons[activeIndex]; }, computeVisibleTooltip_: function(tooltips, activeIndex) { return tooltips[activeIndex]; }, delayChanged_: function() { this.$.wrapper.style.transitionDelay = this.delay + 'ms'; }, show: function() { this.closed = false; }, hide: function() { this.closed = true; }, fireClick: function() { // We cannot attach an on-click to the entire viewer-zoom-button, as this // will include clicks on the margins. Instead, proxy clicks on the FAB // through. this.fire('fabclick'); this.activeIndex = (this.activeIndex + 1) % this.icons_.length; } }); /* Copyright 2015 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ :host { -webkit-user-select: none; bottom: 0; padding: 48px 0; position: fixed; right: 0; z-index: 3; } :host-context([dir=rtl]) { left: 0; right: auto; } viewer-zoom-button { display: block; } /* A small gap between the zoom in/zoom out buttons. */ #zoom-out-button { margin-top: 10px; } /* A larger gap between the fit button and bottom two buttons. */ #zoom-in-button { margin-top: 24px; } // Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. (function() { var FIT_TO_PAGE = 0; var FIT_TO_WIDTH = 1; Polymer({ is: 'viewer-zoom-toolbar', properties: { strings: { type: Object, observer: 'setTooltips_' }, visible_: { type: Boolean, value: true } }, isVisible: function() { return this.visible_; }, setTooltips_: function() { this.$['fit-button'].tooltips = [this.strings.tooltipFitToPage, this.strings.tooltipFitToWidth]; this.$['zoom-in-button'].tooltips = [this.strings.tooltipZoomIn]; this.$['zoom-out-button'].tooltips = [this.strings.tooltipZoomOut]; }, fitToggle: function() { if (this.$['fit-button'].activeIndex == FIT_TO_WIDTH) this.fire('fit-to-width'); else this.fire('fit-to-page'); }, zoomIn: function() { this.fire('zoom-in'); }, zoomOut: function() { this.fire('zoom-out'); }, show: function() { if (!this.visible_) { this.visible_ = true; this.$['fit-button'].show(); this.$['zoom-in-button'].show(); this.$['zoom-out-button'].show(); } }, hide: function() { if (this.visible_) { this.visible_ = false; this.$['fit-button'].hide(); this.$['zoom-in-button'].hide(); this.$['zoom-out-button'].hide(); } }, }); })(); PNG  IHDR+$  pHYsHHFk>bKGDCIDATx^MKTQ616m.Z 1GBDIJDb/. 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1 : 0); var hexrep = new Array(b.length * stride); for (var i = 0; i < b.length; ++i) { if (sep) hexrep[i * stride + 0] = sep; hexrep[i * stride + stride - 2] = hexchars.charAt((b[i] >> 4) & 15); hexrep[i * stride + stride - 1] = hexchars.charAt(b[i] & 15); } return (sep ? hexrep.slice(1) : hexrep).join(''); } function UTIL_HexToBytes(h) { var hexchars = '0123456789ABCDEFabcdef'; var res = new Uint8Array(h.length / 2); for (var i = 0; i < h.length; i += 2) { if (hexchars.indexOf(h.substring(i, i + 1)) == -1) break; res[i / 2] = parseInt(h.substring(i, i + 2), 16); } return res; } function UTIL_HexToArray(h) { var hexchars = '0123456789ABCDEFabcdef'; var res = new Array(h.length / 2); for (var i = 0; i < h.length; i += 2) { if (hexchars.indexOf(h.substring(i, i + 1)) == -1) break; res[i / 2] = parseInt(h.substring(i, i + 2), 16); } return res; } function UTIL_equalArrays(a, b) { if (!a || !b) return false; if (a.length != b.length) return false; var accu = 0; for (var i = 0; i < a.length; ++i) accu |= a[i] ^ b[i]; return accu === 0; } function UTIL_ltArrays(a, b) { if (a.length < b.length) return true; if (a.length > b.length) return false; for (var i = 0; i < a.length; ++i) { if (a[i] < b[i]) return true; if (a[i] > b[i]) return false; } return false; } function UTIL_gtArrays(a, b) { return UTIL_ltArrays(b, a); } function UTIL_geArrays(a, b) { return !UTIL_ltArrays(a, b); } function UTIL_unionArrays(a, b) { var obj = {}; for (var i = 0; i < a.length; i++) { obj[a[i]] = a[i]; } for (var i = 0; i < b.length; i++) { obj[b[i]] = b[i]; } var union = []; for (var k in obj) { union.push(obj[k]); } return union; } function UTIL_getRandom(a) { var tmp = new Array(a); var rnd = new Uint8Array(a); window.crypto.getRandomValues(rnd); // Yay! for (var i = 0; i < a; ++i) tmp[i] = rnd[i] & 255; return tmp; } function UTIL_setFavicon(icon) { // Construct a new favion link tag var faviconLink = document.createElement('link'); faviconLink.rel = 'Shortcut Icon'; faviconLink.type = 'image/x-icon'; faviconLink.href = icon; // Remove the old favion, if it exists var head = document.getElementsByTagName('head')[0]; var links = head.getElementsByTagName('link'); for (var i = 0; i < links.length; i++) { var link = links[i]; if (link.type == faviconLink.type && link.rel == faviconLink.rel) { head.removeChild(link); } } // Add in the new one head.appendChild(faviconLink); } // Erase all entries in array function UTIL_clear(a) { if (a instanceof Array) { for (var i = 0; i < a.length; ++i) a[i] = 0; } } // Type tags used for ASN.1 encoding of ECDSA signatures /** @const */ var UTIL_ASN_INT = 0x02; /** @const */ var UTIL_ASN_SEQUENCE = 0x30; /** * Parse SEQ(INT, INT) from ASN1 byte array. * @param {(Uint8Array|Array)} a input to parse from. * @return {{'r': !Array, 's': !Array}|null} */ function UTIL_Asn1SignatureToJson(a) { if (a.length < 6) return null; // Too small to be valid if (a[0] != UTIL_ASN_SEQUENCE) return null; var l = a[1] & 255; if (l & 0x80) return null; // SEQ.size too large if (a.length != 2 + l) return null; // SEQ size does not match input function parseInt(off) { if (a[off] != UTIL_ASN_INT) return null; var l = a[off + 1] & 255; if (l & 0x80) return null; // INT.size too large if (off + 2 + l > a.length) return null; // Out of bounds return a.slice(off + 2, off + 2 + l); } var r = parseInt(2); if (!r) return null; var s = parseInt(2 + 2 + r.length); if (!s) return null; return {'r': r, 's': s}; } /** * Encode a JSON signature {r,s} as an ASN1 SEQ(INT, INT). May modify sig * @param {{'r': (!Array|undefined), 's': !Array}} sig * @return {!Uint8Array} */ function UTIL_JsonSignatureToAsn1(sig) { var rbytes = sig.r; var sbytes = sig.s; // ASN.1 integers are arbitrary length msb first and signed. // sig.r and sig.s are 256 bits msb first but _unsigned_, so we must // prepend a zero byte in case their high bit is set. if (rbytes[0] & 0x80) rbytes.unshift(0); if (sbytes[0] & 0x80) sbytes.unshift(0); var len = 4 + rbytes.length + sbytes.length; var buf = new Uint8Array(2 + len); var i = 0; buf[i++] = UTIL_ASN_SEQUENCE; buf[i++] = len; buf[i++] = UTIL_ASN_INT; buf[i++] = rbytes.length; buf.set(rbytes, i); i += rbytes.length; buf[i++] = UTIL_ASN_INT; buf[i++] = sbytes.length; buf.set(sbytes, i); return buf; } function UTIL_prepend_zero(s, n) { if (s.length == n) return s; var l = s.length; for (var i = 0; i < n - l; ++i) { s = '0' + s; } return s; } // hr:min:sec.milli string function UTIL_time() { var d = new Date(); var m = UTIL_prepend_zero((d.getMonth() + 1).toString(), 2); var t = UTIL_prepend_zero(d.getDate().toString(), 2); var H = UTIL_prepend_zero(d.getHours().toString(), 2); var M = UTIL_prepend_zero(d.getMinutes().toString(), 2); var S = UTIL_prepend_zero(d.getSeconds().toString(), 2); var L = UTIL_prepend_zero((d.getMilliseconds() * 1000).toString(), 6); return m + t + ' ' + H + ':' + M + ':' + S + '.' + L; } var UTIL_events = []; var UTIL_max_events = 500; function UTIL_fmt(s) { var line = UTIL_time() + ': ' + s; if (UTIL_events.push(line) > UTIL_max_events) { // Drop from head. UTIL_events.splice(0, UTIL_events.length - UTIL_max_events); } return line; } // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // WebSafeBase64Escape and Unescape. function B64_encode(bytes, opt_length) { if (!opt_length) opt_length = bytes.length; var b64out = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_'; var result = ''; var shift = 0; var accu = 0; var inputIndex = 0; while (opt_length--) { accu <<= 8; accu |= bytes[inputIndex++]; shift += 8; while (shift >= 6) { var i = (accu >> (shift - 6)) & 63; result += b64out.charAt(i); shift -= 6; } } if (shift) { accu <<= 8; shift += 8; var i = (accu >> (shift - 6)) & 63; result += b64out.charAt(i); } return result; } // Normal base64 encode; not websafe, including padding. function base64_encode(bytes, opt_length) { if (!opt_length) opt_length = bytes.length; var b64out = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'; var result = ''; var shift = 0; var accu = 0; var inputIndex = 0; while (opt_length--) { accu <<= 8; accu |= bytes[inputIndex++]; shift += 8; while (shift >= 6) { var i = (accu >> (shift - 6)) & 63; result += b64out.charAt(i); shift -= 6; } } if (shift) { accu <<= 8; shift += 8; var i = (accu >> (shift - 6)) & 63; result += b64out.charAt(i); } while (result.length % 4) result += '='; return result; } var B64_inmap = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 63, 0, 0, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 0, 0, 0, 0, 64, 0, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 0, 0, 0, 0, 0 ]; function B64_decode(string) { var bytes = []; var accu = 0; var shift = 0; for (var i = 0; i < string.length; ++i) { var c = string.charCodeAt(i); if (c < 32 || c > 127 || !B64_inmap[c - 32]) return []; accu <<= 6; accu |= (B64_inmap[c - 32] - 1); shift += 6; if (shift >= 8) { bytes.push((accu >> (shift - 8)) & 255); shift -= 8; } } return bytes; } // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Defines a Closeable interface. */ 'use strict'; /** * A closeable interface. * @interface */ function Closeable() {} /** Closes this object. */ Closeable.prototype.close = function() {}; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Provides a countdown-based timer interface. */ 'use strict'; /** * A countdown timer. * @interface */ function Countdown() {} /** * Sets a new timeout for this timer. * @param {number} timeoutMillis how long, in milliseconds, the countdown lasts. * @param {Function=} cb called back when the countdown expires. * @return {boolean} whether the timeout could be set. */ Countdown.prototype.setTimeout = function(timeoutMillis, cb) {}; /** Clears this timer's timeout. Timers that are cleared become expired. */ Countdown.prototype.clearTimeout = function() {}; /** * @return {number} how many milliseconds are remaining until the timer expires. */ Countdown.prototype.millisecondsUntilExpired = function() {}; /** @return {boolean} whether the timer has expired. */ Countdown.prototype.expired = function() {}; /** * Constructs a new clone of this timer, while overriding its callback. * @param {Function=} cb callback for new timer. * @return {!Countdown} new clone. */ Countdown.prototype.clone = function(cb) {}; /** * A factory to create countdown timers. * @interface */ function CountdownFactory() {} /** * Creates a new timer. * @param {number} timeoutMillis How long, in milliseconds, the countdown lasts. * @param {function()=} opt_cb Called back when the countdown expires. * @return {!Countdown} The timer. */ CountdownFactory.prototype.createTimer = function(timeoutMillis, opt_cb) {}; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Provides a countdown-based timer implementation. */ 'use strict'; /** * Constructs a new timer. The timer has a very limited resolution, and does * not attempt to be millisecond accurate. Its intended use is as a * low-precision timer that pauses while debugging. * @param {!SystemTimer} sysTimer The system timer implementation. * @param {number=} timeoutMillis how long, in milliseconds, the countdown * lasts. * @param {Function=} cb called back when the countdown expires. * @constructor * @implements {Countdown} */ function CountdownTimer(sysTimer, timeoutMillis, cb) { /** @private {!SystemTimer} */ this.sysTimer_ = sysTimer; this.remainingMillis = 0; this.setTimeout(timeoutMillis || 0, cb); } /** Timer interval */ CountdownTimer.TIMER_INTERVAL_MILLIS = 200; /** * Sets a new timeout for this timer. Only possible if the timer is not * currently active. * @param {number} timeoutMillis how long, in milliseconds, the countdown lasts. * @param {Function=} cb called back when the countdown expires. * @return {boolean} whether the timeout could be set. */ CountdownTimer.prototype.setTimeout = function(timeoutMillis, cb) { if (this.timeoutId) return false; if (!timeoutMillis || timeoutMillis < 0) return false; this.remainingMillis = timeoutMillis; this.cb = cb; if (this.remainingMillis > CountdownTimer.TIMER_INTERVAL_MILLIS) { this.timeoutId = this.sysTimer_.setInterval(this.timerTick.bind(this), CountdownTimer.TIMER_INTERVAL_MILLIS); } else { // Set a one-shot timer for the last interval. this.timeoutId = this.sysTimer_.setTimeout( this.timerTick.bind(this), this.remainingMillis); } return true; }; /** Clears this timer's timeout. Timers that are cleared become expired. */ CountdownTimer.prototype.clearTimeout = function() { if (this.timeoutId) { this.sysTimer_.clearTimeout(this.timeoutId); this.timeoutId = undefined; } this.remainingMillis = 0; }; /** * @return {number} how many milliseconds are remaining until the timer expires. */ CountdownTimer.prototype.millisecondsUntilExpired = function() { return this.remainingMillis > 0 ? this.remainingMillis : 0; }; /** @return {boolean} whether the timer has expired. */ CountdownTimer.prototype.expired = function() { return this.remainingMillis <= 0; }; /** * Constructs a new clone of this timer, while overriding its callback. * @param {Function=} cb callback for new timer. * @return {!Countdown} new clone. */ CountdownTimer.prototype.clone = function(cb) { return new CountdownTimer(this.sysTimer_, this.remainingMillis, cb); }; /** Timer callback. */ CountdownTimer.prototype.timerTick = function() { this.remainingMillis -= CountdownTimer.TIMER_INTERVAL_MILLIS; if (this.expired()) { this.sysTimer_.clearTimeout(this.timeoutId); this.timeoutId = undefined; if (this.cb) { this.cb(); } } }; /** * A factory for creating CountdownTimers. * @param {!SystemTimer} sysTimer The system timer implementation. * @constructor * @implements {CountdownFactory} */ function CountdownTimerFactory(sysTimer) { /** @private {!SystemTimer} */ this.sysTimer_ = sysTimer; } /** * Creates a new timer. * @param {number} timeoutMillis How long, in milliseconds, the countdown lasts. * @param {function()=} opt_cb Called back when the countdown expires. * @return {!Countdown} The timer. */ CountdownTimerFactory.prototype.createTimer = function(timeoutMillis, opt_cb) { return new CountdownTimer(this.sysTimer_, timeoutMillis, opt_cb); }; /** * Minimum timeout attenuation, below which a response couldn't be reasonably * guaranteed, in seconds. * @const */ var MINIMUM_TIMEOUT_ATTENUATION_SECONDS = 1; /** * @param {number} timeoutSeconds Timeout value in seconds. * @param {number=} opt_attenuationSeconds Attenuation value in seconds. * @return {number} The timeout value, attenuated to ensure a response can be * given before the timeout's expiration. */ function attenuateTimeoutInSeconds(timeoutSeconds, opt_attenuationSeconds) { var attenuationSeconds = opt_attenuationSeconds || MINIMUM_TIMEOUT_ATTENUATION_SECONDS; if (timeoutSeconds < attenuationSeconds) return 0; return timeoutSeconds - attenuationSeconds; } /** * Default request timeout when none is present in the request, in seconds. * @const */ var DEFAULT_REQUEST_TIMEOUT_SECONDS = 30; /** * Gets the timeout value from the request, if any, substituting * opt_defaultTimeoutSeconds or DEFAULT_REQUEST_TIMEOUT_SECONDS if the request * does not contain a timeout value. * @param {Object} request The request containing the timeout. * @param {number=} opt_defaultTimeoutSeconds * @return {number} Timeout value, in seconds. */ function getTimeoutValueFromRequest(request, opt_defaultTimeoutSeconds) { var timeoutValueSeconds; if (request.hasOwnProperty('timeoutSeconds')) { timeoutValueSeconds = request['timeoutSeconds']; } else if (request.hasOwnProperty('timeout')) { timeoutValueSeconds = request['timeout']; } else if (opt_defaultTimeoutSeconds !== undefined) { timeoutValueSeconds = opt_defaultTimeoutSeconds; } else { timeoutValueSeconds = DEFAULT_REQUEST_TIMEOUT_SECONDS; } return timeoutValueSeconds; } /** * Creates a new countdown for the given timeout value, attenuated to ensure a * response is given prior to the countdown's expiration, using the given timer * factory. * @param {CountdownFactory} timerFactory The factory to use. * @param {number} timeoutValueSeconds * @param {number=} opt_attenuationSeconds Attenuation value in seconds. * @return {!Countdown} A countdown timer. */ function createAttenuatedTimer(timerFactory, timeoutValueSeconds, opt_attenuationSeconds) { timeoutValueSeconds = attenuateTimeoutInSeconds(timeoutValueSeconds, opt_attenuationSeconds); return timerFactory.createTimer(timeoutValueSeconds * 1000); } // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // SHA256 in javascript. // // SHA256 { // SHA256(); // void reset(); // void update(byte[] data, opt_length); // byte[32] digest(); // } /** @constructor */ function SHA256() { this._buf = new Array(64); this._W = new Array(64); this._pad = new Array(64); this._k = [ 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2]; this._pad[0] = 0x80; for (var i = 1; i < 64; ++i) this._pad[i] = 0; this.reset(); } /** Reset the hasher */ SHA256.prototype.reset = function() { this._chain = [ 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19]; this._inbuf = 0; this._total = 0; }; /** Hash the next block of 64 bytes * @param {Array} buf A 64 byte buffer */ SHA256.prototype._compress = function(buf) { var W = this._W; var k = this._k; function _rotr(w, r) { return ((w << (32 - r)) | (w >>> r)); }; // get 16 big endian words for (var i = 0; i < 64; i += 4) { var w = (buf[i] << 24) | (buf[i + 1] << 16) | (buf[i + 2] << 8) | (buf[i + 3]); W[i / 4] = w; } // expand to 64 words for (var i = 16; i < 64; ++i) { var s0 = _rotr(W[i - 15], 7) ^ _rotr(W[i - 15], 18) ^ (W[i - 15] >>> 3); var s1 = _rotr(W[i - 2], 17) ^ _rotr(W[i - 2], 19) ^ (W[i - 2] >>> 10); W[i] = (W[i - 16] + s0 + W[i - 7] + s1) & 0xffffffff; } var A = this._chain[0]; var B = this._chain[1]; var C = this._chain[2]; var D = this._chain[3]; var E = this._chain[4]; var F = this._chain[5]; var G = this._chain[6]; var H = this._chain[7]; for (var i = 0; i < 64; ++i) { var S0 = _rotr(A, 2) ^ _rotr(A, 13) ^ _rotr(A, 22); var maj = (A & B) ^ (A & C) ^ (B & C); var t2 = (S0 + maj) & 0xffffffff; var S1 = _rotr(E, 6) ^ _rotr(E, 11) ^ _rotr(E, 25); var ch = (E & F) ^ ((~E) & G); var t1 = (H + S1 + ch + k[i] + W[i]) & 0xffffffff; H = G; G = F; F = E; E = (D + t1) & 0xffffffff; D = C; C = B; B = A; A = (t1 + t2) & 0xffffffff; } this._chain[0] += A; this._chain[1] += B; this._chain[2] += C; this._chain[3] += D; this._chain[4] += E; this._chain[5] += F; this._chain[6] += G; this._chain[7] += H; }; /** Update the hash with additional data * @param {Array|Uint8Array} bytes The data * @param {number=} opt_length How many bytes to hash, if not all */ SHA256.prototype.update = function(bytes, opt_length) { if (!opt_length) opt_length = bytes.length; this._total += opt_length; for (var n = 0; n < opt_length; ++n) { this._buf[this._inbuf++] = bytes[n]; if (this._inbuf == 64) { this._compress(this._buf); this._inbuf = 0; } } }; /** Update the hash with a specified range from a data buffer * @param {Array} bytes The data buffer * @param {number} start Starting index of the range in bytes * @param {number} end End index, will not be included in range */ SHA256.prototype.updateRange = function(bytes, start, end) { this._total += (end - start); for (var n = start; n < end; ++n) { this._buf[this._inbuf++] = bytes[n]; if (this._inbuf == 64) { this._compress(this._buf); this._inbuf = 0; } } }; /** * Optionally update the hash with additional arguments, and return the * resulting hash value. * @param {...*} var_args Data buffers to hash * @return {Array} the SHA256 hash value. */ SHA256.prototype.digest = function(var_args) { for (var i = 0; i < arguments.length; ++i) this.update(arguments[i]); var digest = new Array(32); var totalBits = this._total * 8; // add pad 0x80 0x00* if (this._inbuf < 56) this.update(this._pad, 56 - this._inbuf); else this.update(this._pad, 64 - (this._inbuf - 56)); // add # bits, big endian for (var i = 63; i >= 56; --i) { this._buf[i] = totalBits & 255; totalBits >>>= 8; } this._compress(this._buf); var n = 0; for (var i = 0; i < 8; ++i) for (var j = 24; j >= 0; j -= 8) digest[n++] = (this._chain[i] >> j) & 255; return digest; }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Provides an interface representing the browser/extension * system's timer interface. */ 'use strict'; /** * An interface representing the browser/extension system's timer interface. * @interface */ function SystemTimer() {} /** * Sets a single-shot timer. * @param {function()} func Called back when the timer expires. * @param {number} timeoutMillis How long until the timer fires, in * milliseconds. * @return {number} A timeout ID, which can be used to cancel the timer. */ SystemTimer.prototype.setTimeout = function(func, timeoutMillis) {}; /** * Clears a previously set timer. * @param {number} timeoutId The ID of the timer to clear. */ SystemTimer.prototype.clearTimeout = function(timeoutId) {}; /** * Sets a repeating interval timer. * @param {function()} func Called back each time the timer fires. * @param {number} timeoutMillis How long until the timer fires, in * milliseconds. * @return {number} A timeout ID, which can be used to cancel the timer. */ SystemTimer.prototype.setInterval = function(func, timeoutMillis) {}; /** * Clears a previously set interval timer. * @param {number} timeoutId The ID of the timer to clear. */ SystemTimer.prototype.clearInterval = function(timeoutId) {}; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Implements a low-level gnubby driver based on chrome.hid. */ 'use strict'; /** * Low level gnubby 'driver'. One per physical USB device. * @param {Gnubbies} gnubbies The gnubbies instances this device is enumerated * in. * @param {!chrome.hid.HidConnectInfo} dev The connection to the device. * @param {number} id The device's id. * @constructor * @implements {GnubbyDevice} */ function HidGnubbyDevice(gnubbies, dev, id) { /** @private {Gnubbies} */ this.gnubbies_ = gnubbies; this.dev = dev; this.id = id; this.txqueue = []; this.clients = []; this.lockCID = 0; // channel ID of client holding a lock, if != 0. this.lockMillis = 0; // current lock period. this.lockTID = null; // timer id of lock timeout. this.closing = false; // device to be closed by receive loop. this.updating = false; // device firmware is in final stage of updating. } /** * Namespace for the HidGnubbyDevice implementation. * @const */ HidGnubbyDevice.NAMESPACE = 'hid'; /** Destroys this low-level device instance. */ HidGnubbyDevice.prototype.destroy = function() { if (!this.dev) return; // Already dead. this.gnubbies_.removeOpenDevice( {namespace: HidGnubbyDevice.NAMESPACE, device: this.id}); this.closing = true; console.log(UTIL_fmt('HidGnubbyDevice.destroy()')); // Synthesize a close error frame to alert all clients, // some of which might be in read state. // // Use magic CID 0 to address all. this.publishFrame_(new Uint8Array([ 0, 0, 0, 0, // broadcast CID GnubbyDevice.CMD_ERROR, 0, 1, // length GnubbyDevice.GONE]).buffer); // Set all clients to closed status and remove them. while (this.clients.length != 0) { var client = this.clients.shift(); if (client) client.closed = true; } if (this.lockTID) { window.clearTimeout(this.lockTID); this.lockTID = null; } var dev = this.dev; this.dev = null; chrome.hid.disconnect(dev.connectionId, function() { if (chrome.runtime.lastError) { console.warn(UTIL_fmt('Device ' + dev.connectionId + ' couldn\'t be disconnected:')); console.warn(UTIL_fmt(chrome.runtime.lastError.message)); return; } console.log(UTIL_fmt('Device ' + dev.connectionId + ' closed')); }); }; /** * Push frame to all clients. * @param {ArrayBuffer} f Data to push * @private */ HidGnubbyDevice.prototype.publishFrame_ = function(f) { var old = this.clients; var remaining = []; var changes = false; for (var i = 0; i < old.length; ++i) { var client = old[i]; if (client.receivedFrame(f)) { // Client still alive; keep on list. remaining.push(client); } else { changes = true; console.log(UTIL_fmt( '[' + Gnubby.hexCid(client.cid) + '] left?')); } } if (changes) this.clients = remaining; }; /** * Register a client for this gnubby. * @param {*} who The client. */ HidGnubbyDevice.prototype.registerClient = function(who) { for (var i = 0; i < this.clients.length; ++i) { if (this.clients[i] === who) return; // Already registered. } this.clients.push(who); if (this.clients.length == 1) { // First client? Kick off read loop. this.readLoop_(); } }; /** * De-register a client. * @param {*} who The client. * @return {number} The number of remaining listeners for this device, or -1 * Returns number of remaining listeners for this device. * if this had no clients to start with. */ HidGnubbyDevice.prototype.deregisterClient = function(who) { var current = this.clients; if (current.length == 0) return -1; this.clients = []; for (var i = 0; i < current.length; ++i) { var client = current[i]; if (client !== who) this.clients.push(client); } return this.clients.length; }; /** * @param {*} who The client. * @return {boolean} Whether this device has who as a client. */ HidGnubbyDevice.prototype.hasClient = function(who) { if (this.clients.length == 0) return false; for (var i = 0; i < this.clients.length; ++i) { if (who === this.clients[i]) return true; } return false; }; /** * Reads all incoming frames and notifies clients of their receipt. * @private */ HidGnubbyDevice.prototype.readLoop_ = function() { //console.log(UTIL_fmt('entering readLoop')); if (!this.dev) return; if (this.closing) { this.destroy(); return; } // No interested listeners, yet we hit readLoop(). // Must be clean-up. We do this here to make sure no transfer is pending. if (!this.clients.length) { this.closing = true; this.destroy(); return; } // firmwareUpdate() sets this.updating when writing the last block before // the signature. We process that reply with the already pending // read transfer but we do not want to start another read transfer for the // signature block, since that request will have no reply. // Instead we will see the device drop and re-appear on the bus. // Current libusb on some platforms gets unhappy when transfer are pending // when that happens. // TODO: revisit once Chrome stabilizes its behavior. if (this.updating) { console.log(UTIL_fmt('device updating. Ending readLoop()')); return; } var self = this; chrome.hid.receive( this.dev.connectionId, function(report_id, data) { if (chrome.runtime.lastError || !data) { console.log(UTIL_fmt('receive got lastError:')); console.log(UTIL_fmt(chrome.runtime.lastError.message)); window.setTimeout(function() { self.destroy(); }, 0); return; } var u8 = new Uint8Array(data); console.log(UTIL_fmt('<' + UTIL_BytesToHex(u8))); self.publishFrame_(data); // Read more. window.setTimeout(function() { self.readLoop_(); }, 0); } ); }; /** * Check whether channel is locked for this request or not. * @param {number} cid Channel id * @param {number} cmd Request command * @return {boolean} true if not locked for this request. * @private */ HidGnubbyDevice.prototype.checkLock_ = function(cid, cmd) { if (this.lockCID) { // We have an active lock. if (this.lockCID != cid) { // Some other channel has active lock. if (cmd != GnubbyDevice.CMD_SYNC && cmd != GnubbyDevice.CMD_INIT) { // Anything but SYNC|INIT gets an immediate busy. var busy = new Uint8Array( [(cid >> 24) & 255, (cid >> 16) & 255, (cid >> 8) & 255, cid & 255, GnubbyDevice.CMD_ERROR, 0, 1, // length GnubbyDevice.BUSY]); // Log the synthetic busy too. console.log(UTIL_fmt('<' + UTIL_BytesToHex(busy))); this.publishFrame_(busy.buffer); return false; } // SYNC|INIT gets to go to the device to flush OS tx/rx queues. // The usb firmware is to alway respond to SYNC/INIT, // regardless of lock status. } } return true; }; /** * Update or grab lock. * @param {number} cid Channel ID * @param {number} cmd Command * @param {number} arg Command argument * @private */ HidGnubbyDevice.prototype.updateLock_ = function(cid, cmd, arg) { if (this.lockCID == 0 || this.lockCID == cid) { // It is this caller's or nobody's lock. if (this.lockTID) { window.clearTimeout(this.lockTID); this.lockTID = null; } if (cmd == GnubbyDevice.CMD_LOCK) { var nseconds = arg; if (nseconds != 0) { this.lockCID = cid; // Set tracking time to be .1 seconds longer than usb device does. this.lockMillis = nseconds * 1000 + 100; } else { // Releasing lock voluntarily. this.lockCID = 0; } } // (re)set the lock timeout if we still hold it. if (this.lockCID) { var self = this; this.lockTID = window.setTimeout( function() { console.warn(UTIL_fmt( 'lock for CID ' + Gnubby.hexCid(cid) + ' expired!')); self.lockTID = null; self.lockCID = 0; }, this.lockMillis); } } }; /** * Queue command to be sent. * If queue was empty, initiate the write. * @param {number} cid The client's channel ID. * @param {number} cmd The command to send. * @param {ArrayBuffer|Uint8Array} data Command arguments */ HidGnubbyDevice.prototype.queueCommand = function(cid, cmd, data) { if (!this.dev) return; if (!this.checkLock_(cid, cmd)) return; var u8 = new Uint8Array(data); var f = new Uint8Array(64); HidGnubbyDevice.setCid_(f, cid); f[4] = cmd; f[5] = (u8.length >> 8); f[6] = (u8.length & 255); var lockArg = (u8.length > 0) ? u8[0] : 0; // Fragment over our 64 byte frames. var n = 7; var seq = 0; for (var i = 0; i < u8.length; ++i) { f[n++] = u8[i]; if (n == f.length) { this.queueFrame_(f.buffer, cid, cmd, lockArg); f = new Uint8Array(64); HidGnubbyDevice.setCid_(f, cid); cmd = f[4] = seq++; n = 5; } } if (n != 5) { this.queueFrame_(f.buffer, cid, cmd, lockArg); } }; /** * Sets the channel id in the frame. * @param {Uint8Array} frame Data frame * @param {number} cid The client's channel ID. * @private */ HidGnubbyDevice.setCid_ = function(frame, cid) { frame[0] = cid >>> 24; frame[1] = cid >>> 16; frame[2] = cid >>> 8; frame[3] = cid; }; /** * Updates the lock, and queues the frame for sending. Also begins sending if * no other writes are outstanding. * @param {ArrayBuffer} frame Data frame * @param {number} cid The client's channel ID. * @param {number} cmd The command to send. * @param {number} arg Command argument * @private */ HidGnubbyDevice.prototype.queueFrame_ = function(frame, cid, cmd, arg) { this.updateLock_(cid, cmd, arg); var wasEmpty = (this.txqueue.length == 0); this.txqueue.push(frame); if (wasEmpty) this.writePump_(); }; /** * Stuff queued frames from txqueue[] to device, one by one. * @private */ HidGnubbyDevice.prototype.writePump_ = function() { if (!this.dev) return; // Ignore. if (this.txqueue.length == 0) return; // Done with current queue. var frame = this.txqueue[0]; var self = this; function transferComplete() { if (chrome.runtime.lastError) { console.log(UTIL_fmt('send got lastError:')); console.log(UTIL_fmt(chrome.runtime.lastError.message)); window.setTimeout(function() { self.destroy(); }, 0); return; } self.txqueue.shift(); // drop sent frame from queue. if (self.txqueue.length != 0) { window.setTimeout(function() { self.writePump_(); }, 0); } }; var u8 = new Uint8Array(frame); // See whether this requires scrubbing before logging. var alternateLog = Gnubby.hasOwnProperty('redactRequestLog') && Gnubby['redactRequestLog'](u8); if (alternateLog) { console.log(UTIL_fmt('>' + alternateLog)); } else { console.log(UTIL_fmt('>' + UTIL_BytesToHex(u8))); } var u8f = new Uint8Array(64); for (var i = 0; i < u8.length; ++i) { u8f[i] = u8[i]; } chrome.hid.send( this.dev.connectionId, 0, // report Id. Must be 0 for our use. u8f.buffer, transferComplete ); }; /** * List of legacy HID devices that do not support the F1D0 usage page as * mandated by the spec, but still need to be supported. * TODO: remove when these devices no longer need to be supported. * @const */ HidGnubbyDevice.HID_VID_PIDS = [ {'vendorId': 4176, 'productId': 512} // Google-specific Yubico HID ]; /** * @param {function(Array)} cb Enumeration callback */ HidGnubbyDevice.enumerate = function(cb) { /** * One pass using getDevices, and one for each of the hardcoded vid/pids. * @const */ var ENUMERATE_PASSES = 1 + HidGnubbyDevice.HID_VID_PIDS.length; var numEnumerated = 0; var allDevs = []; function enumerated(f1d0Enumerated, devs) { // Don't double-add a device; it'll just confuse things. // We assume the various calls to getDevices() return from the same // deviceId pool. for (var i = 0; i < devs.length; i++) { var dev = devs[i]; dev.f1d0Only = f1d0Enumerated; // Unfortunately indexOf is not usable, since the two calls produce // different objects. Compare their deviceIds instead. var found = false; for (var j = 0; j < allDevs.length; j++) { if (allDevs[j].deviceId == dev.deviceId) { found = true; allDevs[j].f1d0Only &= f1d0Enumerated; break; } } if (!found) { allDevs.push(dev); } } if (++numEnumerated == ENUMERATE_PASSES) { cb(allDevs); } } // Pass 1: usagePage-based enumeration. chrome.hid.getDevices({filters: [{usagePage: 0xf1d0}]}, enumerated.bind(null, true)); // Pass 2: vid/pid-based enumeration, for legacy devices. for (var i = 0; i < HidGnubbyDevice.HID_VID_PIDS.length; i++) { var dev = HidGnubbyDevice.HID_VID_PIDS[i]; chrome.hid.getDevices({filters: [dev]}, enumerated.bind(null, false)); } }; /** * @param {Gnubbies} gnubbies The gnubbies instances this device is enumerated * in. * @param {number} which The index of the device to open. * @param {!chrome.hid.HidDeviceInfo} dev The device to open. * @param {function(number, GnubbyDevice=)} cb Called back with the * result of opening the device. */ HidGnubbyDevice.open = function(gnubbies, which, dev, cb) { chrome.hid.connect(dev.deviceId, function(handle) { if (chrome.runtime.lastError) { console.log(UTIL_fmt('connect got lastError:')); console.log(UTIL_fmt(chrome.runtime.lastError.message)); } if (!handle) { console.warn(UTIL_fmt('failed to connect device. permissions issue?')); cb(-GnubbyDevice.NODEVICE); return; } var nonNullHandle = /** @type {!chrome.hid.HidConnectInfo} */ (handle); var gnubby = new HidGnubbyDevice(gnubbies, nonNullHandle, which); cb(-GnubbyDevice.OK, gnubby); }); }; /** * @param {*} dev A browser API device object * @return {GnubbyDeviceId} A device identifier for the device. */ HidGnubbyDevice.deviceToDeviceId = function(dev) { var hidDev = /** @type {!chrome.hid.HidDeviceInfo} */ (dev); var deviceId = { namespace: HidGnubbyDevice.NAMESPACE, device: hidDev.deviceId }; return deviceId; }; /** * Registers this implementation with gnubbies. * @param {Gnubbies} gnubbies Gnubbies registry */ HidGnubbyDevice.register = function(gnubbies) { var HID_GNUBBY_IMPL = { isSharedAccess: true, enumerate: HidGnubbyDevice.enumerate, deviceToDeviceId: HidGnubbyDevice.deviceToDeviceId, open: HidGnubbyDevice.open }; gnubbies.registerNamespace(HidGnubbyDevice.NAMESPACE, HID_GNUBBY_IMPL); }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Implements a low-level gnubby driver based on chrome.usb. */ 'use strict'; /** * Low level gnubby 'driver'. One per physical USB device. * @param {Gnubbies} gnubbies The gnubbies instances this device is enumerated * in. * @param {!chrome.usb.ConnectionHandle} dev The device. * @param {number} id The device's id. * @param {number} inEndpoint The device's in endpoint. * @param {number} outEndpoint The device's out endpoint. * @constructor * @implements {GnubbyDevice} */ function UsbGnubbyDevice(gnubbies, dev, id, inEndpoint, outEndpoint) { /** @private {Gnubbies} */ this.gnubbies_ = gnubbies; this.dev = dev; this.id = id; this.inEndpoint = inEndpoint; this.outEndpoint = outEndpoint; this.txqueue = []; this.clients = []; this.lockCID = 0; // channel ID of client holding a lock, if != 0. this.lockMillis = 0; // current lock period. this.lockTID = null; // timer id of lock timeout. this.closing = false; // device to be closed by receive loop. this.updating = false; // device firmware is in final stage of updating. this.inTransferPending = false; this.outTransferPending = false; } /** * Namespace for the UsbGnubbyDevice implementation. * @const */ UsbGnubbyDevice.NAMESPACE = 'usb'; /** Destroys this low-level device instance. */ UsbGnubbyDevice.prototype.destroy = function() { if (!this.dev) return; // Already dead. this.gnubbies_.removeOpenDevice( {namespace: UsbGnubbyDevice.NAMESPACE, device: this.id}); this.closing = true; console.log(UTIL_fmt('UsbGnubbyDevice.destroy()')); // Synthesize a close error frame to alert all clients, // some of which might be in read state. // // Use magic CID 0 to address all. this.publishFrame_(new Uint8Array([ 0, 0, 0, 0, // broadcast CID GnubbyDevice.CMD_ERROR, 0, 1, // length GnubbyDevice.GONE]).buffer); // Set all clients to closed status and remove them. while (this.clients.length != 0) { var client = this.clients.shift(); if (client) client.closed = true; } if (this.lockTID) { window.clearTimeout(this.lockTID); this.lockTID = null; } var dev = this.dev; this.dev = null; chrome.usb.releaseInterface(dev, 0, function() { if (chrome.runtime.lastError) { console.warn(UTIL_fmt('Device ' + dev.handle + ' couldn\'t be released:')); console.warn(UTIL_fmt(chrome.runtime.lastError.message)); return; } console.log(UTIL_fmt('Device ' + dev.handle + ' released')); chrome.usb.closeDevice(dev, function() { if (chrome.runtime.lastError) { console.warn(UTIL_fmt('Device ' + dev.handle + ' couldn\'t be closed:')); console.warn(UTIL_fmt(chrome.runtime.lastError.message)); return; } console.log(UTIL_fmt('Device ' + dev.handle + ' closed')); }); }); }; /** * Push frame to all clients. * @param {ArrayBuffer} f Data frame * @private */ UsbGnubbyDevice.prototype.publishFrame_ = function(f) { var old = this.clients; var remaining = []; var changes = false; for (var i = 0; i < old.length; ++i) { var client = old[i]; if (client.receivedFrame(f)) { // Client still alive; keep on list. remaining.push(client); } else { changes = true; console.log(UTIL_fmt( '[' + Gnubby.hexCid(client.cid) + '] left?')); } } if (changes) this.clients = remaining; }; /** * @return {boolean} whether this device is open and ready to use. * @private */ UsbGnubbyDevice.prototype.readyToUse_ = function() { if (this.closing) return false; if (!this.dev) return false; return true; }; /** * Reads one reply from the low-level device. * @private */ UsbGnubbyDevice.prototype.readOneReply_ = function() { if (!this.readyToUse_()) return; // No point in continuing. if (this.updating) return; // Do not bother waiting for final update reply. var self = this; function inTransferComplete(x) { self.inTransferPending = false; if (!self.readyToUse_()) return; // No point in continuing. if (chrome.runtime.lastError) { console.warn(UTIL_fmt('in bulkTransfer got lastError: ')); console.warn(UTIL_fmt(chrome.runtime.lastError.message)); window.setTimeout(function() { self.destroy(); }, 0); return; } if (x.data) { var u8 = new Uint8Array(x.data); console.log(UTIL_fmt('<' + UTIL_BytesToHex(u8))); self.publishFrame_(x.data); // Write another pending request, if any. window.setTimeout( function() { self.txqueue.shift(); // Drop sent frame from queue. self.writeOneRequest_(); }, 0); } else { console.log(UTIL_fmt('no x.data!')); console.log(x); window.setTimeout(function() { self.destroy(); }, 0); } } if (this.inTransferPending == false) { this.inTransferPending = true; chrome.usb.bulkTransfer( /** @type {!chrome.usb.ConnectionHandle} */(this.dev), { direction: 'in', endpoint: this.inEndpoint, length: 2048 }, inTransferComplete); } else { throw 'inTransferPending!'; } }; /** * Register a client for this gnubby. * @param {*} who The client. */ UsbGnubbyDevice.prototype.registerClient = function(who) { for (var i = 0; i < this.clients.length; ++i) { if (this.clients[i] === who) return; // Already registered. } this.clients.push(who); }; /** * De-register a client. * @param {*} who The client. * @return {number} The number of remaining listeners for this device, or -1 * Returns number of remaining listeners for this device. * if this had no clients to start with. */ UsbGnubbyDevice.prototype.deregisterClient = function(who) { var current = this.clients; if (current.length == 0) return -1; this.clients = []; for (var i = 0; i < current.length; ++i) { var client = current[i]; if (client !== who) this.clients.push(client); } return this.clients.length; }; /** * @param {*} who The client. * @return {boolean} Whether this device has who as a client. */ UsbGnubbyDevice.prototype.hasClient = function(who) { if (this.clients.length == 0) return false; for (var i = 0; i < this.clients.length; ++i) { if (who === this.clients[i]) return true; } return false; }; /** * Stuff queued frames from txqueue[] to device, one by one. * @private */ UsbGnubbyDevice.prototype.writeOneRequest_ = function() { if (!this.readyToUse_()) return; // No point in continuing. if (this.txqueue.length == 0) return; // Nothing to send. var frame = this.txqueue[0]; var self = this; function OutTransferComplete(x) { self.outTransferPending = false; if (!self.readyToUse_()) return; // No point in continuing. if (chrome.runtime.lastError) { console.warn(UTIL_fmt('out bulkTransfer lastError: ')); console.warn(UTIL_fmt(chrome.runtime.lastError.message)); window.setTimeout(function() { self.destroy(); }, 0); return; } window.setTimeout(function() { self.readOneReply_(); }, 0); }; var u8 = new Uint8Array(frame); // See whether this requires scrubbing before logging. var alternateLog = Gnubby.hasOwnProperty('redactRequestLog') && Gnubby['redactRequestLog'](u8); if (alternateLog) { console.log(UTIL_fmt('>' + alternateLog)); } else { console.log(UTIL_fmt('>' + UTIL_BytesToHex(u8))); } if (this.outTransferPending == false) { this.outTransferPending = true; chrome.usb.bulkTransfer( /** @type {!chrome.usb.ConnectionHandle} */(this.dev), { direction: 'out', endpoint: this.outEndpoint, data: frame }, OutTransferComplete); } else { throw 'outTransferPending!'; } }; /** * Check whether channel is locked for this request or not. * @param {number} cid Channel id * @param {number} cmd Command to be sent * @return {boolean} true if not locked for this request. * @private */ UsbGnubbyDevice.prototype.checkLock_ = function(cid, cmd) { if (this.lockCID) { // We have an active lock. if (this.lockCID != cid) { // Some other channel has active lock. if (cmd != GnubbyDevice.CMD_SYNC && cmd != GnubbyDevice.CMD_INIT) { // Anything but SYNC|INIT gets an immediate busy. var busy = new Uint8Array( [(cid >> 24) & 255, (cid >> 16) & 255, (cid >> 8) & 255, cid & 255, GnubbyDevice.CMD_ERROR, 0, 1, // length GnubbyDevice.BUSY]); // Log the synthetic busy too. console.log(UTIL_fmt('<' + UTIL_BytesToHex(busy))); this.publishFrame_(busy.buffer); return false; } // SYNC|INIT get to go to the device to flush OS tx/rx queues. // The usb firmware is to always respond to SYNC|INIT, // regardless of lock status. } } return true; }; /** * Update or grab lock. * @param {number} cid Channel id * @param {number} cmd Command * @param {number} arg Command argument * @private */ UsbGnubbyDevice.prototype.updateLock_ = function(cid, cmd, arg) { if (this.lockCID == 0 || this.lockCID == cid) { // It is this caller's or nobody's lock. if (this.lockTID) { window.clearTimeout(this.lockTID); this.lockTID = null; } if (cmd == GnubbyDevice.CMD_LOCK) { var nseconds = arg; if (nseconds != 0) { this.lockCID = cid; // Set tracking time to be .1 seconds longer than usb device does. this.lockMillis = nseconds * 1000 + 100; } else { // Releasing lock voluntarily. this.lockCID = 0; } } // (re)set the lock timeout if we still hold it. if (this.lockCID) { var self = this; this.lockTID = window.setTimeout( function() { console.warn(UTIL_fmt( 'lock for CID ' + Gnubby.hexCid(cid) + ' expired!')); self.lockTID = null; self.lockCID = 0; }, this.lockMillis); } } }; /** * Queue command to be sent. * If queue was empty, initiate the write. * @param {number} cid The client's channel ID. * @param {number} cmd The command to send. * @param {ArrayBuffer|Uint8Array} data Command argument data */ UsbGnubbyDevice.prototype.queueCommand = function(cid, cmd, data) { if (!this.dev) return; if (!this.checkLock_(cid, cmd)) return; var u8 = new Uint8Array(data); var frame = new Uint8Array(u8.length + 7); frame[0] = cid >>> 24; frame[1] = cid >>> 16; frame[2] = cid >>> 8; frame[3] = cid; frame[4] = cmd; frame[5] = (u8.length >> 8); frame[6] = (u8.length & 255); frame.set(u8, 7); var lockArg = (u8.length > 0) ? u8[0] : 0; this.updateLock_(cid, cmd, lockArg); var wasEmpty = (this.txqueue.length == 0); this.txqueue.push(frame.buffer); if (wasEmpty) this.writeOneRequest_(); }; /** * @const */ UsbGnubbyDevice.WINUSB_VID_PIDS = [ {'vendorId': 4176, 'productId': 529} // Yubico WinUSB ]; /** * @param {function(Array)} cb Enumerate callback */ UsbGnubbyDevice.enumerate = function(cb) { var numEnumerated = 0; var allDevs = []; function enumerated(devs) { allDevs = allDevs.concat(devs); if (++numEnumerated == UsbGnubbyDevice.WINUSB_VID_PIDS.length) { cb(allDevs); } } for (var i = 0; i < UsbGnubbyDevice.WINUSB_VID_PIDS.length; i++) { chrome.usb.getDevices(UsbGnubbyDevice.WINUSB_VID_PIDS[i], enumerated); } }; /** * @typedef {?{ * address: number, * type: string, * direction: string, * maximumPacketSize: number, * synchronization: (string|undefined), * usage: (string|undefined), * pollingInterval: (number|undefined) * }} * @see http://developer.chrome.com/apps/usb.html#method-listInterfaces */ var InterfaceEndpoint; /** * @typedef {?{ * interfaceNumber: number, * alternateSetting: number, * interfaceClass: number, * interfaceSubclass: number, * interfaceProtocol: number, * description: (string|undefined), * endpoints: !Array * }} * @see http://developer.chrome.com/apps/usb.html#method-listInterfaces */ var InterfaceDescriptor; /** * @param {Gnubbies} gnubbies The gnubbies instances this device is enumerated * in. * @param {number} which The index of the device to open. * @param {!chrome.usb.Device} dev The device to open. * @param {function(number, GnubbyDevice=)} cb Called back with the * result of opening the device. */ UsbGnubbyDevice.open = function(gnubbies, which, dev, cb) { /** @param {chrome.usb.ConnectionHandle=} handle Connection handle */ function deviceOpened(handle) { if (chrome.runtime.lastError) { console.warn(UTIL_fmt('openDevice got lastError:')); console.warn(UTIL_fmt(chrome.runtime.lastError.message)); console.warn(UTIL_fmt('failed to open device. permissions issue?')); cb(-GnubbyDevice.NODEVICE); return; } var nonNullHandle = /** @type {!chrome.usb.ConnectionHandle} */ (handle); chrome.usb.listInterfaces(nonNullHandle, function(descriptors) { var inEndpoint, outEndpoint; for (var i = 0; i < descriptors.length; i++) { var descriptor = /** @type {InterfaceDescriptor} */ (descriptors[i]); for (var j = 0; j < descriptor.endpoints.length; j++) { var endpoint = descriptor.endpoints[j]; if (inEndpoint == undefined && endpoint.type == 'bulk' && endpoint.direction == 'in') { inEndpoint = endpoint.address; } if (outEndpoint == undefined && endpoint.type == 'bulk' && endpoint.direction == 'out') { outEndpoint = endpoint.address; } } } if (inEndpoint == undefined || outEndpoint == undefined) { console.warn(UTIL_fmt('device lacking an endpoint (broken?)')); chrome.usb.closeDevice(nonNullHandle); cb(-GnubbyDevice.NODEVICE); return; } // Try getting it claimed now. chrome.usb.claimInterface(nonNullHandle, 0, function() { if (chrome.runtime.lastError) { console.warn(UTIL_fmt('lastError: ' + chrome.runtime.lastError)); console.log(chrome.runtime.lastError); } var claimed = !chrome.runtime.lastError; if (!claimed) { console.warn(UTIL_fmt('failed to claim interface. busy?')); // Claim failed? Let the callers know and bail out. chrome.usb.closeDevice(nonNullHandle); cb(-GnubbyDevice.BUSY); return; } var gnubby = new UsbGnubbyDevice(gnubbies, nonNullHandle, which, inEndpoint, outEndpoint); cb(-GnubbyDevice.OK, gnubby); }); }); } if (UsbGnubbyDevice.runningOnCrOS === undefined) { UsbGnubbyDevice.runningOnCrOS = (window.navigator.appVersion.indexOf('; CrOS ') != -1); } if (UsbGnubbyDevice.runningOnCrOS) { chrome.usb.requestAccess(dev, 0, function(success) { // Even though the argument to requestAccess is a chrome.usb.Device, the // access request is for access to all devices with the same vid/pid. // Curiously, if the first chrome.usb.requestAccess succeeds, a second // call with a separate device with the same vid/pid fails. Since // chrome.usb.openDevice will fail if a previous access request really // failed, just ignore the outcome of the access request and move along. chrome.usb.openDevice(dev, deviceOpened); }); } else { chrome.usb.openDevice(dev, deviceOpened); } }; /** * @param {*} dev Chrome usb device * @return {GnubbyDeviceId} A device identifier for the device. */ UsbGnubbyDevice.deviceToDeviceId = function(dev) { var usbDev = /** @type {!chrome.usb.Device} */ (dev); var deviceId = { namespace: UsbGnubbyDevice.NAMESPACE, device: usbDev.device }; return deviceId; }; /** * Registers this implementation with gnubbies. * @param {Gnubbies} gnubbies Gnubbies singleton instance */ UsbGnubbyDevice.register = function(gnubbies) { var USB_GNUBBY_IMPL = { isSharedAccess: false, enumerate: UsbGnubbyDevice.enumerate, deviceToDeviceId: UsbGnubbyDevice.deviceToDeviceId, open: UsbGnubbyDevice.open }; gnubbies.registerNamespace(UsbGnubbyDevice.NAMESPACE, USB_GNUBBY_IMPL); }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview A class for managing all enumerated gnubby devices. */ 'use strict'; /** * @typedef {{ * namespace: string, * device: number * }} */ var GnubbyDeviceId; /** * @typedef {{ * isSharedAccess: boolean, * enumerate: function(function(Array)), * deviceToDeviceId: function(*): GnubbyDeviceId, * open: function(Gnubbies, number, *, function(number, GnubbyDevice=)) * }} */ var GnubbyNamespaceImpl; /** * Manager of opened devices. * @constructor */ function Gnubbies() { /** @private {Object} */ this.devs_ = {}; this.pendingEnumerate = []; // clients awaiting an enumerate /** * The distinct namespaces registered in this Gnubbies instance, in order of * registration. * @private {Array} */ this.namespaces_ = []; /** @private {Object} */ this.impl_ = {}; /** @private {Object>} */ this.openDevs_ = {}; /** @private {Object>} */ this.pendingOpens_ = {}; // clients awaiting an open } /** * Registers a new gnubby namespace, i.e. an implementation of the * enumerate/open functions for all devices within a namespace. * @param {string} namespace The namespace of the numerator, e.g. 'usb'. * @param {GnubbyNamespaceImpl} impl The implementation. */ Gnubbies.prototype.registerNamespace = function(namespace, impl) { if (!this.impl_.hasOwnProperty(namespace)) { this.namespaces_.push(namespace); } this.impl_[namespace] = impl; }; /** * @param {GnubbyDeviceId} id The device id. * @return {boolean} Whether the device is a shared access device. */ Gnubbies.prototype.isSharedAccess = function(id) { if (!this.impl_.hasOwnProperty(id.namespace)) return false; return this.impl_[id.namespace].isSharedAccess; }; /** * @param {GnubbyDeviceId} which The device to remove. */ Gnubbies.prototype.removeOpenDevice = function(which) { if (this.openDevs_[which.namespace] && this.openDevs_[which.namespace].hasOwnProperty(which.device)) { delete this.openDevs_[which.namespace][which.device]; } }; /** Close all enumerated devices. */ Gnubbies.prototype.closeAll = function() { if (this.inactivityTimer) { this.inactivityTimer.clearTimeout(); this.inactivityTimer = undefined; } // Close and stop talking to any gnubbies we have enumerated. for (var namespace in this.openDevs_) { for (var dev in this.openDevs_[namespace]) { var deviceId = Number(dev); this.openDevs_[namespace][deviceId].destroy(); } } this.devs_ = {}; this.openDevs_ = {}; }; /** * @param {function(number, Array)} cb Called back with the * result of enumerating. */ Gnubbies.prototype.enumerate = function(cb) { if (!cb) { cb = function(rc, indexes) { var msg = 'defaultEnumerateCallback(' + rc; if (indexes) { msg += ', ['; for (var i = 0; i < indexes.length; i++) { msg += JSON.stringify(indexes[i]); } msg += ']'; } msg += ')'; console.log(UTIL_fmt(msg)); }; } if (!this.namespaces_.length) { cb(-GnubbyDevice.OK, []); return; } var namespacesEnumerated = 0; var self = this; /** * @param {string} namespace The namespace that was enumerated. * @param {Array} existingDeviceIds Previously enumerated * device IDs (from other namespaces), if any. * @param {Array} devs The devices in the namespace. */ function enumerated(namespace, existingDeviceIds, devs) { namespacesEnumerated++; var lastNamespace = (namespacesEnumerated == self.namespaces_.length); if (chrome.runtime.lastError) { console.warn(UTIL_fmt('lastError: ' + chrome.runtime.lastError)); console.log(chrome.runtime.lastError); devs = []; } console.log(UTIL_fmt('Enumerated ' + devs.length + ' gnubbies')); console.log(devs); var presentDevs = {}; var deviceIds = []; var deviceToDeviceId = self.impl_[namespace].deviceToDeviceId; for (var i = 0; i < devs.length; ++i) { var deviceId = deviceToDeviceId(devs[i]); deviceIds.push(deviceId); presentDevs[deviceId.device] = devs[i]; } var toRemove = []; for (var dev in self.openDevs_[namespace]) { if (!presentDevs.hasOwnProperty(dev)) { toRemove.push(dev); } } for (var i = 0; i < toRemove.length; i++) { dev = toRemove[i]; if (self.openDevs_[namespace][dev]) { self.openDevs_[namespace][dev].destroy(); delete self.openDevs_[namespace][dev]; } } self.devs_[namespace] = devs; existingDeviceIds.push.apply(existingDeviceIds, deviceIds); if (lastNamespace) { while (self.pendingEnumerate.length != 0) { var cb = self.pendingEnumerate.shift(); cb(-GnubbyDevice.OK, existingDeviceIds); } } } var deviceIds = []; function makeEnumerateCb(namespace) { return function(devs) { enumerated(namespace, deviceIds, devs); } } this.pendingEnumerate.push(cb); if (this.pendingEnumerate.length == 1) { for (var i = 0; i < this.namespaces_.length; i++) { var namespace = this.namespaces_[i]; var enumerator = this.impl_[namespace].enumerate; enumerator(makeEnumerateCb(namespace)); } } }; /** * Amount of time past last activity to set the inactivity timer to, in millis. * @const */ Gnubbies.INACTIVITY_TIMEOUT_MARGIN_MILLIS = 30000; /** * Private instance of timers based on window's timer functions. * @const * @private */ Gnubbies.SYS_TIMER_ = new WindowTimer(); /** * @param {number|undefined} opt_timeoutMillis Timeout in milliseconds */ Gnubbies.prototype.resetInactivityTimer = function(opt_timeoutMillis) { var millis = opt_timeoutMillis ? opt_timeoutMillis + Gnubbies.INACTIVITY_TIMEOUT_MARGIN_MILLIS : Gnubbies.INACTIVITY_TIMEOUT_MARGIN_MILLIS; if (!this.inactivityTimer) { this.inactivityTimer = new CountdownTimer( Gnubbies.SYS_TIMER_, millis, this.inactivityTimeout_.bind(this)); } else if (millis > this.inactivityTimer.millisecondsUntilExpired()) { this.inactivityTimer.clearTimeout(); this.inactivityTimer.setTimeout(millis, this.inactivityTimeout_.bind(this)); } }; /** * Called when the inactivity timeout expires. * @private */ Gnubbies.prototype.inactivityTimeout_ = function() { this.inactivityTimer = undefined; for (var namespace in this.openDevs_) { for (var dev in this.openDevs_[namespace]) { var deviceId = Number(dev); console.warn(namespace + ' device ' + deviceId + ' still open after inactivity, closing'); this.openDevs_[namespace][deviceId].destroy(); } } }; /** * Opens and adds a new client of the specified device. * @param {GnubbyDeviceId} which Which device to open. * @param {*} who Client of the device. * @param {function(number, GnubbyDevice=)} cb Called back with the result of * opening the device. */ Gnubbies.prototype.addClient = function(which, who, cb) { this.resetInactivityTimer(); var self = this; function opened(gnubby, who, cb) { if (gnubby.closing) { // Device is closing or already closed. self.removeClient(gnubby, who); if (cb) { cb(-GnubbyDevice.NODEVICE); } } else { gnubby.registerClient(who); if (cb) { cb(-GnubbyDevice.OK, gnubby); } } } function notifyOpenResult(rc) { if (self.pendingOpens_[which.namespace]) { while (self.pendingOpens_[which.namespace][which.device].length != 0) { var client = self.pendingOpens_[which.namespace][which.device].shift(); client.cb(rc); } delete self.pendingOpens_[which.namespace][which.device]; } } var dev = null; var deviceToDeviceId = this.impl_[which.namespace].deviceToDeviceId; if (this.devs_[which.namespace]) { for (var i = 0; i < this.devs_[which.namespace].length; i++) { var device = this.devs_[which.namespace][i]; if (deviceToDeviceId(device).device == which.device) { dev = device; break; } } } if (!dev) { // Index out of bounds. Device does not exist in current enumeration. this.removeClient(null, who); if (cb) { cb(-GnubbyDevice.NODEVICE); } return; } function openCb(rc, opt_gnubby) { if (rc) { notifyOpenResult(rc); return; } if (!opt_gnubby) { notifyOpenResult(-GnubbyDevice.NODEVICE); return; } var gnubby = /** @type {!GnubbyDevice} */ (opt_gnubby); if (!self.openDevs_[which.namespace]) { self.openDevs_[which.namespace] = {}; } self.openDevs_[which.namespace][which.device] = gnubby; while (self.pendingOpens_[which.namespace][which.device].length != 0) { var client = self.pendingOpens_[which.namespace][which.device].shift(); opened(gnubby, client.who, client.cb); } delete self.pendingOpens_[which.namespace][which.device]; } if (this.openDevs_[which.namespace] && this.openDevs_[which.namespace].hasOwnProperty(which.device)) { var gnubby = this.openDevs_[which.namespace][which.device]; opened(gnubby, who, cb); } else { var opener = {who: who, cb: cb}; if (!this.pendingOpens_.hasOwnProperty(which.namespace)) { this.pendingOpens_[which.namespace] = {}; } if (this.pendingOpens_[which.namespace].hasOwnProperty(which.device)) { this.pendingOpens_[which.namespace][which.device].push(opener); } else { this.pendingOpens_[which.namespace][which.device] = [opener]; var openImpl = this.impl_[which.namespace].open; openImpl(this, which.device, dev, openCb); } } }; /** * Removes a client from a low-level gnubby. * @param {GnubbyDevice} whichDev The gnubby. * @param {*} who The client. */ Gnubbies.prototype.removeClient = function(whichDev, who) { console.log(UTIL_fmt('Gnubbies.removeClient()')); this.resetInactivityTimer(); // De-register client from all known devices. for (var namespace in this.openDevs_) { for (var devId in this.openDevs_[namespace]) { var deviceId = Number(devId); if (isNaN(deviceId)) deviceId = devId; var dev = this.openDevs_[namespace][deviceId]; if (dev.hasClient(who)) { if (whichDev && dev != whichDev) { console.warn('Gnubby attached to more than one device!?'); } if (!dev.deregisterClient(who)) { dev.destroy(); } } } } }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Provides a client view of a gnubby, aka USB security key. */ 'use strict'; /** * Creates a Gnubby client. There may be more than one simultaneous Gnubby * client of a physical device. This client manages multiplexing access to the * low-level device to maintain the illusion that it is the only client of the * device. * @constructor * @param {number=} opt_busySeconds to retry an exchange upon a BUSY result. */ function Gnubby(opt_busySeconds) { this.dev = null; this.gnubbyInstance = ++Gnubby.gnubbyId_; this.cid = Gnubby.BROADCAST_CID; this.rxframes = []; this.synccnt = 0; this.rxcb = null; this.closed = false; this.commandPending = false; this.notifyOnClose = []; this.busyMillis = (opt_busySeconds ? opt_busySeconds * 1000 : 9500); } /** * Global Gnubby instance counter. * @private {number} */ Gnubby.gnubbyId_ = 0; /** * Sets Gnubby's Gnubbies singleton. * @param {Gnubbies} gnubbies Gnubbies singleton instance */ Gnubby.setGnubbies = function(gnubbies) { /** @private {Gnubbies} */ Gnubby.gnubbies_ = gnubbies; }; /** * Return cid as hex string. * @param {number} cid to convert. * @return {string} hexadecimal string. */ Gnubby.hexCid = function(cid) { var tmp = [(cid >>> 24) & 255, (cid >>> 16) & 255, (cid >>> 8) & 255, (cid >>> 0) & 255]; return UTIL_BytesToHex(tmp); }; /** * Opens the gnubby with the given index, or the first found gnubby if no * index is specified. * @param {GnubbyDeviceId} which The device to open. If null, the first * gnubby found is opened. * @param {function(number)|undefined} opt_cb Called with result of opening the * gnubby. */ Gnubby.prototype.open = function(which, opt_cb) { var cb = opt_cb ? opt_cb : Gnubby.defaultCallback; if (this.closed) { cb(-GnubbyDevice.NODEVICE); return; } this.closingWhenIdle = false; var self = this; function setCid(which) { // Set a default channel ID, in case the caller never sets a better one. self.cid = Gnubby.defaultChannelId_(self.gnubbyInstance, which); } var enumerateRetriesRemaining = 3; function enumerated(rc, devs) { if (!devs.length) rc = -GnubbyDevice.NODEVICE; if (rc) { cb(rc); return; } which = devs[0]; setCid(which); self.which = which; Gnubby.gnubbies_.addClient(which, self, function(rc, device) { if (rc == -GnubbyDevice.NODEVICE && enumerateRetriesRemaining-- > 0) { // We were trying to open the first device, but now it's not there? // Do over. Gnubby.gnubbies_.enumerate(enumerated); return; } self.dev = device; cb(rc); }); } if (which) { setCid(which); self.which = which; Gnubby.gnubbies_.addClient(which, self, function(rc, device) { self.dev = device; cb(rc); }); } else { Gnubby.gnubbies_.enumerate(enumerated); } }; /** * Generates a default channel id value for a gnubby instance that won't * collide within this application, but may when others simultaneously access * the device. * @param {number} gnubbyInstance An instance identifier for a gnubby. * @param {GnubbyDeviceId} which The device identifer for the gnubby device. * @return {number} The channel id. * @private */ Gnubby.defaultChannelId_ = function(gnubbyInstance, which) { var cid = (gnubbyInstance) & 0x00ffffff; cid |= ((which.device + 1) << 24); // For debugging. return cid; }; /** * @return {boolean} Whether this gnubby has any command outstanding. * @private */ Gnubby.prototype.inUse_ = function() { return this.commandPending; }; /** Closes this gnubby. */ Gnubby.prototype.close = function() { this.closed = true; if (this.dev) { console.log(UTIL_fmt('Gnubby.close()')); this.rxframes = []; this.rxcb = null; var dev = this.dev; this.dev = null; var self = this; // Wait a bit in case simpleton client tries open next gnubby. // Without delay, gnubbies would drop all idle devices, before client // gets to the next one. window.setTimeout( function() { Gnubby.gnubbies_.removeClient(dev, self); }, 300); } }; /** * Asks this gnubby to close when it gets a chance. * @param {Function=} cb called back when closed. */ Gnubby.prototype.closeWhenIdle = function(cb) { if (!this.inUse_()) { this.close(); if (cb) cb(); return; } this.closingWhenIdle = true; if (cb) this.notifyOnClose.push(cb); }; /** * Close and notify every caller that it is now closed. * @private */ Gnubby.prototype.idleClose_ = function() { this.close(); while (this.notifyOnClose.length != 0) { var cb = this.notifyOnClose.shift(); cb(); } }; /** * Notify callback for every frame received. * @param {function()} cb Callback * @private */ Gnubby.prototype.notifyFrame_ = function(cb) { if (this.rxframes.length != 0) { // Already have frames; continue. if (cb) window.setTimeout(cb, 0); } else { this.rxcb = cb; } }; /** * Called by low level driver with a frame. * @param {ArrayBuffer|Uint8Array} frame Data frame * @return {boolean} Whether this client is still interested in receiving * frames from its device. */ Gnubby.prototype.receivedFrame = function(frame) { if (this.closed) return false; // No longer interested. if (!this.checkCID_(frame)) { // Not for me, ignore. return true; } this.rxframes.push(frame); // Callback self in case we were waiting. Once. var cb = this.rxcb; this.rxcb = null; if (cb) window.setTimeout(cb, 0); return true; }; /** * @return {ArrayBuffer|Uint8Array} oldest received frame. Throw if none. * @private */ Gnubby.prototype.readFrame_ = function() { if (this.rxframes.length == 0) throw 'rxframes empty!'; var frame = this.rxframes.shift(); return frame; }; /** Poll from rxframes[]. * @param {number} cmd Command * @param {number} timeout timeout in seconds. * @param {?function(...)} cb Callback * @private */ Gnubby.prototype.read_ = function(cmd, timeout, cb) { if (this.closed) { cb(-GnubbyDevice.GONE); return; } if (!this.dev) { cb(-GnubbyDevice.GONE); return; } var tid = null; // timeout timer id. var callback = cb; var self = this; var msg = null; var seqno = 0; var count = 0; /** * Schedule call to cb if not called yet. * @param {number} a Return code. * @param {Object=} b Optional data. */ function schedule_cb(a, b) { self.commandPending = false; if (tid) { // Cancel timeout timer. window.clearTimeout(tid); tid = null; } var c = callback; if (c) { callback = null; window.setTimeout(function() { c(a, b); }, 0); } if (self.closingWhenIdle) self.idleClose_(); }; function read_timeout() { if (!callback || !tid) return; // Already done. console.error(UTIL_fmt( '[' + Gnubby.hexCid(self.cid) + '] timeout!')); if (self.dev) { self.dev.destroy(); // Stop pretending this thing works. } tid = null; schedule_cb(-GnubbyDevice.TIMEOUT); }; function cont_frame() { if (!callback || !tid) return; // Already done. var f = new Uint8Array(self.readFrame_()); var rcmd = f[4]; var totalLen = (f[5] << 8) + f[6]; if (rcmd == GnubbyDevice.CMD_ERROR && totalLen == 1) { // Error from device; forward. console.log(UTIL_fmt( '[' + Gnubby.hexCid(self.cid) + '] error frame ' + UTIL_BytesToHex(f))); if (f[7] == GnubbyDevice.GONE) { self.closed = true; } schedule_cb(-f[7]); return; } if ((rcmd & 0x80)) { // Not an CONT frame, ignore. console.log(UTIL_fmt( '[' + Gnubby.hexCid(self.cid) + '] ignoring non-cont frame ' + UTIL_BytesToHex(f))); self.notifyFrame_(cont_frame); return; } var seq = (rcmd & 0x7f); if (seq != seqno++) { console.log(UTIL_fmt( '[' + Gnubby.hexCid(self.cid) + '] bad cont frame ' + UTIL_BytesToHex(f))); schedule_cb(-GnubbyDevice.INVALID_SEQ); return; } // Copy payload. for (var i = 5; i < f.length && count < msg.length; ++i) { msg[count++] = f[i]; } if (count == msg.length) { // Done. schedule_cb(-GnubbyDevice.OK, msg.buffer); } else { // Need more CONT frame(s). self.notifyFrame_(cont_frame); } } function init_frame() { if (!callback || !tid) return; // Already done. var f = new Uint8Array(self.readFrame_()); var rcmd = f[4]; var totalLen = (f[5] << 8) + f[6]; if (rcmd == GnubbyDevice.CMD_ERROR && totalLen == 1) { // Error from device; forward. // Don't log busy frames, they're "normal". if (f[7] != GnubbyDevice.BUSY) { console.log(UTIL_fmt( '[' + Gnubby.hexCid(self.cid) + '] error frame ' + UTIL_BytesToHex(f))); } if (f[7] == GnubbyDevice.GONE) { self.closed = true; } schedule_cb(-f[7]); return; } if (!(rcmd & 0x80)) { // Not an init frame, ignore. console.log(UTIL_fmt( '[' + Gnubby.hexCid(self.cid) + '] ignoring non-init frame ' + UTIL_BytesToHex(f))); self.notifyFrame_(init_frame); return; } if (rcmd != cmd) { // Not expected ack, read more. console.log(UTIL_fmt( '[' + Gnubby.hexCid(self.cid) + '] ignoring non-ack frame ' + UTIL_BytesToHex(f))); self.notifyFrame_(init_frame); return; } // Copy payload. msg = new Uint8Array(totalLen); for (var i = 7; i < f.length && count < msg.length; ++i) { msg[count++] = f[i]; } if (count == msg.length) { // Done. schedule_cb(-GnubbyDevice.OK, msg.buffer); } else { // Need more CONT frame(s). self.notifyFrame_(cont_frame); } } // Start timeout timer. tid = window.setTimeout(read_timeout, 1000.0 * timeout); // Schedule read of first frame. self.notifyFrame_(init_frame); }; /** * @const */ Gnubby.NOTIFICATION_CID = 0; /** * @const */ Gnubby.BROADCAST_CID = (0xff << 24) | (0xff << 16) | (0xff << 8) | 0xff; /** * @param {ArrayBuffer|Uint8Array} frame Data frame * @return {boolean} Whether frame is for my channel. * @private */ Gnubby.prototype.checkCID_ = function(frame) { var f = new Uint8Array(frame); var c = (f[0] << 24) | (f[1] << 16) | (f[2] << 8) | (f[3]); return c === this.cid || c === Gnubby.NOTIFICATION_CID; }; /** * Queue command for sending. * @param {number} cmd The command to send. * @param {ArrayBuffer|Uint8Array} data Command data * @private */ Gnubby.prototype.write_ = function(cmd, data) { if (this.closed) return; if (!this.dev) return; this.commandPending = true; this.dev.queueCommand(this.cid, cmd, data); }; /** * Writes the command, and calls back when the command's reply is received. * @param {number} cmd The command to send. * @param {ArrayBuffer|Uint8Array} data Command data * @param {number} timeout Timeout in seconds. * @param {function(number, ArrayBuffer=)} cb Callback * @private */ Gnubby.prototype.exchange_ = function(cmd, data, timeout, cb) { var busyWait = new CountdownTimer(Gnubby.SYS_TIMER_, this.busyMillis); var self = this; function retryBusy(rc, rc_data) { if (rc == -GnubbyDevice.BUSY && !busyWait.expired()) { if (Gnubby.gnubbies_) { Gnubby.gnubbies_.resetInactivityTimer(timeout * 1000); } self.write_(cmd, data); self.read_(cmd, timeout, retryBusy); } else { busyWait.clearTimeout(); cb(rc, rc_data); } } retryBusy(-GnubbyDevice.BUSY, undefined); // Start work. }; /** * Private instance of timers based on window's timer functions. * @const * @private */ Gnubby.SYS_TIMER_ = new WindowTimer(); /** Default callback for commands. Simply logs to console. * @param {number} rc Result status code * @param {(ArrayBuffer|Uint8Array|Array|null)} data Result data */ Gnubby.defaultCallback = function(rc, data) { var msg = 'defaultCallback(' + rc; if (data) { if (typeof data == 'string') msg += ', ' + data; else msg += ', ' + UTIL_BytesToHex(new Uint8Array(data)); } msg += ')'; console.log(UTIL_fmt(msg)); }; /** * Ensures this device has temporary ownership of the USB device, by: * 1. Using the INIT command to allocate an unique channel id, if one hasn't * been retrieved before, or * 2. Sending a nonce to device, flushing read queue until match. * @param {?function(...)} cb Callback */ Gnubby.prototype.sync = function(cb) { if (!cb) cb = Gnubby.defaultCallback; if (this.closed) { cb(-GnubbyDevice.GONE); return; } var done = false; var trycount = 6; var tid = null; var self = this; function returnValue(rc) { done = true; window.setTimeout(cb.bind(null, rc), 0); if (self.closingWhenIdle) self.idleClose_(); } function callback(rc, opt_frame) { self.commandPending = false; if (tid) { window.clearTimeout(tid); tid = null; } completionAction(rc, opt_frame); } function sendSyncSentinel() { var cmd = GnubbyDevice.CMD_SYNC; var data = new Uint8Array(1); data[0] = ++self.synccnt; self.dev.queueCommand(self.cid, cmd, data.buffer); } function syncSentinelEquals(f) { return (f[4] == GnubbyDevice.CMD_SYNC && (f.length == 7 || /* fw pre-0.2.1 bug: does not echo sentinel */ f[7] == self.synccnt)); } function syncCompletionAction(rc, opt_frame) { if (rc) console.warn(UTIL_fmt('sync failed: ' + rc)); returnValue(rc); } function sendInitSentinel() { var cid = self.cid; // If we do not have a specific CID yet, reset to BROADCAST for init. if (self.cid == Gnubby.defaultChannelId_(self.gnubbyInstance, self.which)) { self.cid = Gnubby.BROADCAST_CID; cid = self.cid; } var cmd = GnubbyDevice.CMD_INIT; self.dev.queueCommand(cid, cmd, nonce); } function initSentinelEquals(f) { return (f[4] == GnubbyDevice.CMD_INIT && f.length >= nonce.length + 7 && UTIL_equalArrays(f.subarray(7, nonce.length + 7), nonce)); } function initCmdUnsupported(rc) { // Different firmwares fail differently on different inputs, so treat any // of the following errors as indicating the INIT command isn't supported. return rc == -GnubbyDevice.INVALID_CMD || rc == -GnubbyDevice.INVALID_PAR || rc == -GnubbyDevice.INVALID_LEN; } function initCompletionAction(rc, opt_frame) { // Actual failures: bail out. if (rc && !initCmdUnsupported(rc)) { console.warn(UTIL_fmt('init failed: ' + rc)); returnValue(rc); } var HEADER_LENGTH = 7; var MIN_LENGTH = HEADER_LENGTH + 4; // 4 bytes for the channel id if (rc || !opt_frame || opt_frame.length < nonce.length + MIN_LENGTH) { // INIT command not supported or is missing the returned channel id: // Pick a random cid to try to prevent collisions on the USB bus. var rnd = UTIL_getRandom(2); self.cid = Gnubby.defaultChannelId_(self.gnubbyInstance, self.which); self.cid ^= (rnd[0] << 16) | (rnd[1] << 8); // Now sync with that cid, to make sure we've got it. setSync(); timeoutLoop(); return; } // Accept the provided cid. var offs = HEADER_LENGTH + nonce.length; self.cid = (opt_frame[offs] << 24) | (opt_frame[offs + 1] << 16) | (opt_frame[offs + 2] << 8) | opt_frame[offs + 3]; returnValue(rc); } function checkSentinel() { var f = new Uint8Array(self.readFrame_()); // Stop on errors and return them. if (f[4] == GnubbyDevice.CMD_ERROR && f[5] == 0 && f[6] == 1) { if (f[7] == GnubbyDevice.BUSY) { // Not spec but some devices do this; retry. sendSentinel(); self.notifyFrame_(checkSentinel); return; } if (f[7] == GnubbyDevice.GONE) { // Device disappeared on us. self.closed = true; } callback(-f[7]); return; } // Eat everything else but expected sentinel reply. if (!sentinelEquals(f)) { // Read more. self.notifyFrame_(checkSentinel); return; } // Done. callback(-GnubbyDevice.OK, f); }; function timeoutLoop() { if (done) return; if (trycount == 0) { // Failed. callback(-GnubbyDevice.TIMEOUT); return; } --trycount; // Try another one. sendSentinel(); self.notifyFrame_(checkSentinel); tid = window.setTimeout(timeoutLoop, 500); }; var sendSentinel; var sentinelEquals; var nonce; var completionAction; function setInit() { sendSentinel = sendInitSentinel; nonce = UTIL_getRandom(8); sentinelEquals = initSentinelEquals; completionAction = initCompletionAction; } function setSync() { sendSentinel = sendSyncSentinel; sentinelEquals = syncSentinelEquals; completionAction = syncCompletionAction; } if (Gnubby.gnubbies_.isSharedAccess(this.which)) { setInit(); } else { setSync(); } timeoutLoop(); }; /** Short timeout value in seconds */ Gnubby.SHORT_TIMEOUT = 1; /** Normal timeout value in seconds */ Gnubby.NORMAL_TIMEOUT = 3; // Max timeout usb firmware has for smartcard response is 30 seconds. // Make our application level tolerance a little longer. /** Maximum timeout in seconds */ Gnubby.MAX_TIMEOUT = 31; /** Blink led * @param {number|ArrayBuffer|Uint8Array} data Command data or number * of seconds to blink * @param {?function(...)} cb Callback */ Gnubby.prototype.blink = function(data, cb) { if (!cb) cb = Gnubby.defaultCallback; if (typeof data == 'number') { var d = new Uint8Array([data]); data = d.buffer; } this.exchange_(GnubbyDevice.CMD_PROMPT, data, Gnubby.NORMAL_TIMEOUT, cb); }; /** Lock the gnubby * @param {number|ArrayBuffer|Uint8Array} data Command data * @param {?function(...)} cb Callback */ Gnubby.prototype.lock = function(data, cb) { if (!cb) cb = Gnubby.defaultCallback; if (typeof data == 'number') { var d = new Uint8Array([data]); data = d.buffer; } this.exchange_(GnubbyDevice.CMD_LOCK, data, Gnubby.NORMAL_TIMEOUT, cb); }; /** Unlock the gnubby * @param {?function(...)} cb Callback */ Gnubby.prototype.unlock = function(cb) { if (!cb) cb = Gnubby.defaultCallback; var data = new Uint8Array([0]); this.exchange_(GnubbyDevice.CMD_LOCK, data.buffer, Gnubby.NORMAL_TIMEOUT, cb); }; /** Request system information data. * @param {?function(...)} cb Callback */ Gnubby.prototype.sysinfo = function(cb) { if (!cb) cb = Gnubby.defaultCallback; this.exchange_(GnubbyDevice.CMD_SYSINFO, new ArrayBuffer(0), Gnubby.NORMAL_TIMEOUT, cb); }; /** Send wink command * @param {?function(...)} cb Callback */ Gnubby.prototype.wink = function(cb) { if (!cb) cb = Gnubby.defaultCallback; this.exchange_(GnubbyDevice.CMD_WINK, new ArrayBuffer(0), Gnubby.NORMAL_TIMEOUT, cb); }; /** Send DFU (Device firmware upgrade) command * @param {ArrayBuffer|Uint8Array} data Command data * @param {?function(...)} cb Callback */ Gnubby.prototype.dfu = function(data, cb) { if (!cb) cb = Gnubby.defaultCallback; this.exchange_(GnubbyDevice.CMD_DFU, data, Gnubby.NORMAL_TIMEOUT, cb); }; /** Ping the gnubby * @param {number|ArrayBuffer|Uint8Array} data Command data * @param {?function(...)} cb Callback */ Gnubby.prototype.ping = function(data, cb) { if (!cb) cb = Gnubby.defaultCallback; if (typeof data == 'number') { var d = new Uint8Array(data); window.crypto.getRandomValues(d); data = d.buffer; } this.exchange_(GnubbyDevice.CMD_PING, data, Gnubby.NORMAL_TIMEOUT, cb); }; /** Send a raw APDU command * @param {ArrayBuffer|Uint8Array} data Command data * @param {?function(...)} cb Callback */ Gnubby.prototype.apdu = function(data, cb) { if (!cb) cb = Gnubby.defaultCallback; this.exchange_(GnubbyDevice.CMD_APDU, data, Gnubby.MAX_TIMEOUT, cb); }; /** Reset gnubby * @param {?function(...)} cb Callback */ Gnubby.prototype.reset = function(cb) { if (!cb) cb = Gnubby.defaultCallback; this.exchange_(GnubbyDevice.CMD_ATR, new ArrayBuffer(0), Gnubby.MAX_TIMEOUT, cb); }; // byte args[3] = [delay-in-ms before disabling interrupts, // delay-in-ms before disabling usb (aka remove), // delay-in-ms before reboot (aka insert)] /** Send usb test command * @param {ArrayBuffer|Uint8Array} args Command data * @param {?function(...)} cb Callback */ Gnubby.prototype.usb_test = function(args, cb) { if (!cb) cb = Gnubby.defaultCallback; var u8 = new Uint8Array(args); this.exchange_(GnubbyDevice.CMD_USB_TEST, u8.buffer, Gnubby.NORMAL_TIMEOUT, cb); }; /** APDU command with reply * @param {ArrayBuffer|Uint8Array} request The request * @param {?function(...)} cb Callback * @param {boolean=} opt_nowink Do not wink */ Gnubby.prototype.apduReply = function(request, cb, opt_nowink) { if (!cb) cb = Gnubby.defaultCallback; var self = this; this.apdu(request, function(rc, data) { if (rc == 0) { var r8 = new Uint8Array(data); if (r8[r8.length - 2] == 0x90 && r8[r8.length - 1] == 0x00) { // strip trailing 9000 var buf = new Uint8Array(r8.subarray(0, r8.length - 2)); cb(-GnubbyDevice.OK, buf.buffer); return; } else { // return non-9000 as rc rc = r8[r8.length - 2] * 256 + r8[r8.length - 1]; // wink gnubby at hand if it needs touching. if (rc == 0x6985 && !opt_nowink) { self.wink(function() { cb(rc); }); return; } } } // Warn on errors other than waiting for touch, wrong data, and // unrecognized command. if (rc != 0x6985 && rc != 0x6a80 && rc != 0x6d00) { console.warn(UTIL_fmt('apduReply_ fail: ' + rc.toString(16))); } cb(rc); }); }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Gnubby methods related to U2F support. */ 'use strict'; // Commands and flags of the Gnubby applet /** Enroll */ Gnubby.U2F_ENROLL = 0x01; /** Request signature */ Gnubby.U2F_SIGN = 0x02; /** Request protocol version */ Gnubby.U2F_VERSION = 0x03; /** Request applet version */ Gnubby.APPLET_VERSION = 0x11; // First 3 bytes are applet version. // APDU.P1 flags /** Test of User Presence required */ Gnubby.P1_TUP_REQUIRED = 0x01; /** Consume a Test of User Presence */ Gnubby.P1_TUP_CONSUME = 0x02; /** Test signature only, no TUP. E.g. to check for existing enrollments. */ Gnubby.P1_TUP_TESTONLY = 0x04; /** Attest with device key */ Gnubby.P1_INDIVIDUAL_KEY = 0x80; // Version values /** V1 of the applet. */ Gnubby.U2F_V1 = 'U2F_V1'; /** V2 of the applet. */ Gnubby.U2F_V2 = 'U2F_V2'; /** Perform enrollment * @param {Array|ArrayBuffer|Uint8Array} challenge Enrollment challenge * @param {Array|ArrayBuffer|Uint8Array} appIdHash Hashed application * id * @param {function(...)} cb Result callback * @param {boolean=} opt_individualAttestation Request the individual * attestation cert rather than the batch one. */ Gnubby.prototype.enroll = function(challenge, appIdHash, cb, opt_individualAttestation) { var p1 = Gnubby.P1_TUP_REQUIRED | Gnubby.P1_TUP_CONSUME; if (opt_individualAttestation) { p1 |= Gnubby.P1_INDIVIDUAL_KEY; } var apdu = new Uint8Array( [0x00, Gnubby.U2F_ENROLL, p1, 0x00, 0x00, 0x00, challenge.length + appIdHash.length]); var u8 = new Uint8Array(apdu.length + challenge.length + appIdHash.length + 2); for (var i = 0; i < apdu.length; ++i) u8[i] = apdu[i]; for (var i = 0; i < challenge.length; ++i) u8[i + apdu.length] = challenge[i]; for (var i = 0; i < appIdHash.length; ++i) { u8[i + apdu.length + challenge.length] = appIdHash[i]; } this.apduReply(u8.buffer, cb); }; /** Request signature * @param {Array|ArrayBuffer|Uint8Array} challengeHash Hashed * signature challenge * @param {Array|ArrayBuffer|Uint8Array} appIdHash Hashed application * id * @param {Array|ArrayBuffer|Uint8Array} keyHandle Key handle to use * @param {function(...)} cb Result callback * @param {boolean=} opt_nowink Request signature without winking * (e.g. during enroll) */ Gnubby.prototype.sign = function(challengeHash, appIdHash, keyHandle, cb, opt_nowink) { var self = this; // The sign command's format is ever-so-slightly different between V1 and V2, // so get this gnubby's version prior to sending it. this.version(function(rc, opt_data) { if (rc) { cb(rc); return; } var version = UTIL_BytesToString(new Uint8Array(opt_data || [])); var apduDataLen = challengeHash.length + appIdHash.length + keyHandle.length; if (version != Gnubby.U2F_V1) { // The V2 sign command includes a length byte for the key handle. apduDataLen++; } var apdu = new Uint8Array( [0x00, Gnubby.U2F_SIGN, Gnubby.P1_TUP_REQUIRED | Gnubby.P1_TUP_CONSUME, 0x00, 0x00, 0x00, apduDataLen]); if (opt_nowink) { // A signature request that does not want winking. // These are used during enroll to figure out whether a gnubby was already // enrolled. // Tell applet to not actually produce a signature, even // if already touched. apdu[2] |= Gnubby.P1_TUP_TESTONLY; } var u8 = new Uint8Array(apdu.length + apduDataLen + 2); for (var i = 0; i < apdu.length; ++i) u8[i] = apdu[i]; for (var i = 0; i < challengeHash.length; ++i) u8[i + apdu.length] = challengeHash[i]; for (var i = 0; i < appIdHash.length; ++i) { u8[i + apdu.length + challengeHash.length] = appIdHash[i]; } var keyHandleOffset = apdu.length + challengeHash.length + appIdHash.length; if (version != Gnubby.U2F_V1) { u8[keyHandleOffset++] = keyHandle.length; } for (var i = 0; i < keyHandle.length; ++i) { u8[i + keyHandleOffset] = keyHandle[i]; } self.apduReply(u8.buffer, cb, opt_nowink); }); }; /** Request version information * @param {function(...)} cb Callback */ Gnubby.prototype.version = function(cb) { if (!cb) cb = Gnubby.defaultCallback; if (this.version_) { cb(-GnubbyDevice.OK, this.version_); return; } var self = this; var apdu = new Uint8Array([0x00, Gnubby.U2F_VERSION, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]); this.apduReply(apdu.buffer, function(rc, data) { if (rc == 0x6d00) { // Command not implemented. Pretend this is v1. var v1 = new Uint8Array(UTIL_StringToBytes(Gnubby.U2F_V1)); self.version_ = v1.buffer; cb(-GnubbyDevice.OK, v1.buffer); } else { if (!rc) { self.version_ = data; } cb(rc, data); } }); }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview This provides the different code types for the gnubby * operations. */ /** * @const * @enum {number} */ var GnubbyCodeTypes = { /** Request succeeded. */ 'OK': 0, /** All plugged in devices are already enrolled. */ 'ALREADY_ENROLLED': 2, /** None of the plugged in devices are enrolled. */ 'NONE_PLUGGED_ENROLLED': 3, /** One or more devices are waiting for touch. */ 'WAIT_TOUCH': 4, /** Unknown error. */ 'UNKNOWN_ERROR': 7, /** Bad request. */ 'BAD_REQUEST': 12 }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Contains a factory interface for creating and opening gnubbies. */ 'use strict'; /** * A factory for creating and opening gnubbies. * @interface */ function GnubbyFactory() {} /** * Enumerates gnubbies. * @param {function(number, Array)} cb Enumerate callback */ GnubbyFactory.prototype.enumerate = function(cb) { }; /** @typedef {function(number, Gnubby=)} */ var FactoryOpenCallback; /** * Creates a new gnubby object, and opens the gnubby with the given index. * @param {GnubbyDeviceId} which The device to open. * @param {boolean} forEnroll Whether this gnubby is being opened for enrolling. * @param {FactoryOpenCallback} cb Called with result of opening the gnubby. * @param {string=} opt_appIdHash The base64-encoded hash of the app id for * which the gnubby being opened. * @param {string=} opt_logMsgUrl The url to post log messages to. */ GnubbyFactory.prototype.openGnubby = function(which, forEnroll, cb, opt_appIdHash, opt_logMsgUrl) { }; /** * Called during enrollment to check whether a gnubby known not to be enrolled * is allowed to enroll in its present state. Upon completion of the check, the * callback is called. * @param {Gnubby} gnubby The not-enrolled gnubby. * @param {string} appIdHash The base64-encoded hash of the app id for which * the gnubby being enrolled. * @param {FactoryOpenCallback} cb Called with the result of the prerequisite * check. (A non-zero status indicates failure.) */ GnubbyFactory.prototype.notEnrolledPrerequisiteCheck = function(gnubby, appIdHash, cb) { }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview This provides the different message types for the gnubby * operations. */ var GnubbyMsgTypes = {}; /** * Enroll request message type. * @const */ GnubbyMsgTypes.ENROLL_WEB_REQUEST = 'enroll_web_request'; /** * Enroll reply message type. * @const */ GnubbyMsgTypes.ENROLL_WEB_REPLY = 'enroll_web_reply'; /** * Enroll notification message type. * @const */ GnubbyMsgTypes.ENROLL_WEB_NOTIFICATION = 'enroll_web_notification'; /** * Sign request message type. * @const */ GnubbyMsgTypes.SIGN_WEB_REQUEST = 'sign_web_request'; /** * Sign reply message type. * @const */ GnubbyMsgTypes.SIGN_WEB_REPLY = 'sign_web_reply'; /** * Sign notification message type. * @const */ GnubbyMsgTypes.SIGN_WEB_NOTIFICATION = 'sign_web_notification'; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Contains a simple factory for creating and opening Gnubby * instances. */ 'use strict'; /** * @param {Gnubbies} gnubbies Gnubbies singleton instance * @constructor * @implements {GnubbyFactory} */ function UsbGnubbyFactory(gnubbies) { /** @private {Gnubbies} */ this.gnubbies_ = gnubbies; Gnubby.setGnubbies(gnubbies); } /** * Creates a new gnubby object, and opens the gnubby with the given index. * @param {GnubbyDeviceId} which The device to open. * @param {boolean} forEnroll Whether this gnubby is being opened for enrolling. * @param {FactoryOpenCallback} cb Called with result of opening the gnubby. * @param {string=} opt_appIdHash The base64-encoded hash of the app id for * which the gnubby being opened. * @param {string=} opt_logMsgUrl The url to post log messages to. * @override */ UsbGnubbyFactory.prototype.openGnubby = function(which, forEnroll, cb, opt_appIdHash, opt_logMsgUrl) { var gnubby = new Gnubby(); gnubby.open(which, function(rc) { if (rc) { cb(rc, gnubby); return; } gnubby.sync(function(rc) { cb(rc, gnubby); }); }); }; /** * Enumerates gnubbies. * @param {function(number, Array)} cb Enumerate callback */ UsbGnubbyFactory.prototype.enumerate = function(cb) { this.gnubbies_.enumerate(cb); }; /** * No-op prerequisite check. * @param {Gnubby} gnubby The not-enrolled gnubby. * @param {string} appIdHash The base64-encoded hash of the app id for which * the gnubby being enrolled. * @param {FactoryOpenCallback} cb Called with the result of the prerequisite * check. (A non-zero status indicates failure.) */ UsbGnubbyFactory.prototype.notEnrolledPrerequisiteCheck = function(gnubby, appIdHash, cb) { cb(DeviceStatusCodes.OK_STATUS, gnubby); }; // Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview This file defines the status codes returned by the device. */ /** * Status codes returned by the gnubby device. * @const * @enum {number} * @export */ var DeviceStatusCodes = {}; /** * Device operation succeeded. * @const */ DeviceStatusCodes.OK_STATUS = 0; /** * Device operation wrong length status. * @const */ DeviceStatusCodes.WRONG_LENGTH_STATUS = 0x6700; /** * Device operation wait touch status. * @const */ DeviceStatusCodes.WAIT_TOUCH_STATUS = 0x6985; /** * Device operation invalid data status. * @const */ DeviceStatusCodes.INVALID_DATA_STATUS = 0x6984; /** * Device operation wrong data status. * @const */ DeviceStatusCodes.WRONG_DATA_STATUS = 0x6a80; /** * Device operation timeout status. * @const */ DeviceStatusCodes.TIMEOUT_STATUS = -5; /** * Device operation busy status. * @const */ DeviceStatusCodes.BUSY_STATUS = -6; /** * Device removed status. * @const */ DeviceStatusCodes.GONE_STATUS = -8; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Handles web page requests for gnubby enrollment. */ 'use strict'; /** * Handles a U2F enroll request. * @param {MessageSender} messageSender The message sender. * @param {Object} request The web page's enroll request. * @param {Function} sendResponse Called back with the result of the enroll. * @return {Closeable} A handler object to be closed when the browser channel * closes. */ function handleU2fEnrollRequest(messageSender, request, sendResponse) { var sentResponse = false; var closeable = null; function sendErrorResponse(error) { var response = makeU2fErrorResponse(request, error.errorCode, error.errorMessage); sendResponseOnce(sentResponse, closeable, response, sendResponse); } function sendSuccessResponse(u2fVersion, info, clientData) { var enrollChallenges = request['registerRequests']; var enrollChallenge = findEnrollChallengeOfVersion(enrollChallenges, u2fVersion); if (!enrollChallenge) { sendErrorResponse({errorCode: ErrorCodes.OTHER_ERROR}); return; } var responseData = makeEnrollResponseData(enrollChallenge, u2fVersion, info, clientData); var response = makeU2fSuccessResponse(request, responseData); sendResponseOnce(sentResponse, closeable, response, sendResponse); } function timeout() { sendErrorResponse({errorCode: ErrorCodes.TIMEOUT}); } var sender = createSenderFromMessageSender(messageSender); if (!sender) { sendErrorResponse({errorCode: ErrorCodes.BAD_REQUEST}); return null; } if (sender.origin.indexOf('http://') == 0 && !HTTP_ORIGINS_ALLOWED) { sendErrorResponse({errorCode: ErrorCodes.BAD_REQUEST}); return null; } if (!isValidEnrollRequest(request)) { sendErrorResponse({errorCode: ErrorCodes.BAD_REQUEST}); return null; } var timeoutValueSeconds = getTimeoutValueFromRequest(request); // Attenuate watchdog timeout value less than the enroller's timeout, so the // watchdog only fires after the enroller could reasonably have called back, // not before. var watchdogTimeoutValueSeconds = attenuateTimeoutInSeconds( timeoutValueSeconds, MINIMUM_TIMEOUT_ATTENUATION_SECONDS / 2); var watchdog = new WatchdogRequestHandler(watchdogTimeoutValueSeconds, timeout); var wrappedErrorCb = watchdog.wrapCallback(sendErrorResponse); var wrappedSuccessCb = watchdog.wrapCallback(sendSuccessResponse); var timer = createAttenuatedTimer( FACTORY_REGISTRY.getCountdownFactory(), timeoutValueSeconds); var logMsgUrl = request['logMsgUrl']; var enroller = new Enroller(timer, sender, sendErrorResponse, sendSuccessResponse, logMsgUrl); watchdog.setCloseable(/** @type {!Closeable} */ (enroller)); closeable = watchdog; var registerRequests = request['registerRequests']; var signRequests = getSignRequestsFromEnrollRequest(request); enroller.doEnroll(registerRequests, signRequests, request['appId']); return closeable; } /** * Returns whether the request appears to be a valid enroll request. * @param {Object} request The request. * @return {boolean} Whether the request appears valid. */ function isValidEnrollRequest(request) { if (!request.hasOwnProperty('registerRequests')) return false; var enrollChallenges = request['registerRequests']; if (!enrollChallenges.length) return false; var hasAppId = request.hasOwnProperty('appId'); if (!isValidEnrollChallengeArray(enrollChallenges, !hasAppId)) return false; var signChallenges = getSignChallenges(request); // A missing sign challenge array is ok, in the case the user is not already // enrolled. // A challenge value need not necessarily be supplied with every challenge. var challengeRequired = false; if (signChallenges && !isValidSignChallengeArray(signChallenges, challengeRequired, !hasAppId)) return false; return true; } /** * @typedef {{ * version: (string|undefined), * challenge: string, * appId: string * }} */ var EnrollChallenge; /** * @param {Array} enrollChallenges The enroll challenges to * validate. * @param {boolean} appIdRequired Whether the appId property is required on * each challenge. * @return {boolean} Whether the given array of challenges is a valid enroll * challenges array. */ function isValidEnrollChallengeArray(enrollChallenges, appIdRequired) { var seenVersions = {}; for (var i = 0; i < enrollChallenges.length; i++) { var enrollChallenge = enrollChallenges[i]; var version = enrollChallenge['version']; if (!version) { // Version is implicitly V1 if not specified. version = 'U2F_V1'; } if (version != 'U2F_V1' && version != 'U2F_V2') { return false; } if (seenVersions[version]) { // Each version can appear at most once. return false; } seenVersions[version] = version; if (appIdRequired && !enrollChallenge['appId']) { return false; } if (!enrollChallenge['challenge']) { // The challenge is required. return false; } } return true; } /** * Finds the enroll challenge of the given version in the enroll challlenge * array. * @param {Array} enrollChallenges The enroll challenges to * search. * @param {string} version Version to search for. * @return {?EnrollChallenge} The enroll challenge with the given versions, or * null if it isn't found. */ function findEnrollChallengeOfVersion(enrollChallenges, version) { for (var i = 0; i < enrollChallenges.length; i++) { if (enrollChallenges[i]['version'] == version) { return enrollChallenges[i]; } } return null; } /** * Makes a responseData object for the enroll request with the given parameters. * @param {EnrollChallenge} enrollChallenge The enroll challenge used to * register. * @param {string} u2fVersion Version of gnubby that enrolled. * @param {string} registrationData The registration data. * @param {string=} opt_clientData The client data, if available. * @return {Object} The responseData object. */ function makeEnrollResponseData(enrollChallenge, u2fVersion, registrationData, opt_clientData) { var responseData = {}; responseData['registrationData'] = registrationData; // Echo the used challenge back in the reply. for (var k in enrollChallenge) { responseData[k] = enrollChallenge[k]; } if (u2fVersion == 'U2F_V2') { // For U2F_V2, the challenge sent to the gnubby is modified to be the // hash of the client data. Include the client data. responseData['clientData'] = opt_clientData; } return responseData; } /** * Gets the expanded sign challenges from an enroll request, potentially by * modifying the request to contain a challenge value where one was omitted. * (For enrolling, the server isn't interested in the value of a signature, * only whether the presented key handle is already enrolled.) * @param {Object} request The request. * @return {Array} */ function getSignRequestsFromEnrollRequest(request) { var signChallenges; if (request.hasOwnProperty('registeredKeys')) { signChallenges = request['registeredKeys']; } else { signChallenges = request['signRequests']; } if (signChallenges) { for (var i = 0; i < signChallenges.length; i++) { // Make sure each sign challenge has a challenge value. // The actual value doesn't matter, as long as it's a string. if (!signChallenges[i].hasOwnProperty('challenge')) { signChallenges[i]['challenge'] = ''; } } } return signChallenges; } /** * Creates a new object to track enrolling with a gnubby. * @param {!Countdown} timer Timer for enroll request. * @param {!WebRequestSender} sender The sender of the request. * @param {function(U2fError)} errorCb Called upon enroll failure. * @param {function(string, string, (string|undefined))} successCb Called upon * enroll success with the version of the succeeding gnubby, the enroll * data, and optionally the browser data associated with the enrollment. * @param {string=} opt_logMsgUrl The url to post log messages to. * @constructor */ function Enroller(timer, sender, errorCb, successCb, opt_logMsgUrl) { /** @private {Countdown} */ this.timer_ = timer; /** @private {WebRequestSender} */ this.sender_ = sender; /** @private {function(U2fError)} */ this.errorCb_ = errorCb; /** @private {function(string, string, (string|undefined))} */ this.successCb_ = successCb; /** @private {string|undefined} */ this.logMsgUrl_ = opt_logMsgUrl; /** @private {boolean} */ this.done_ = false; /** @private {Object} */ this.browserData_ = {}; /** @private {Array} */ this.encodedEnrollChallenges_ = []; /** @private {Array} */ this.encodedSignChallenges_ = []; // Allow http appIds for http origins. (Broken, but the caller deserves // what they get.) /** @private {boolean} */ this.allowHttp_ = this.sender_.origin ? this.sender_.origin.indexOf('http://') == 0 : false; /** @private {Closeable} */ this.handler_ = null; } /** * Default timeout value in case the caller never provides a valid timeout. */ Enroller.DEFAULT_TIMEOUT_MILLIS = 30 * 1000; /** * Performs an enroll request with the given enroll and sign challenges. * @param {Array} enrollChallenges A set of enroll challenges. * @param {Array} signChallenges A set of sign challenges for * existing enrollments for this user and appId. * @param {string=} opt_appId The app id for the entire request. */ Enroller.prototype.doEnroll = function(enrollChallenges, signChallenges, opt_appId) { /** @private {Array} */ this.enrollChallenges_ = enrollChallenges; /** @private {Array} */ this.signChallenges_ = signChallenges; /** @private {(string|undefined)} */ this.appId_ = opt_appId; var self = this; getTabIdWhenPossible(this.sender_).then(function() { if (self.done_) return; self.approveOrigin_(); }, function() { self.close(); self.notifyError_({errorCode: ErrorCodes.BAD_REQUEST}); }); }; /** * Ensures the user has approved this origin to use security keys, sending * to the request to the handler if/when the user has done so. * @private */ Enroller.prototype.approveOrigin_ = function() { var self = this; FACTORY_REGISTRY.getApprovedOrigins() .isApprovedOrigin(this.sender_.origin, this.sender_.tabId) .then(function(result) { if (self.done_) return; if (!result) { // Origin not approved: rather than give an explicit indication to // the web page, let a timeout occur. if (self.timer_.expired()) { self.notifyTimeout_(); return; } var newTimer = self.timer_.clone(self.notifyTimeout_.bind(self)); self.timer_.clearTimeout(); self.timer_ = newTimer; return; } self.sendEnrollRequestToHelper_(); }); }; /** * Notifies the caller of a timeout error. * @private */ Enroller.prototype.notifyTimeout_ = function() { this.notifyError_({errorCode: ErrorCodes.TIMEOUT}); }; /** * Performs an enroll request with this instance's enroll and sign challenges, * by encoding them into a helper request and passing the resulting request to * the factory registry's helper. * @private */ Enroller.prototype.sendEnrollRequestToHelper_ = function() { var encodedEnrollChallenges = this.encodeEnrollChallenges_(this.enrollChallenges_, this.appId_); // If the request didn't contain a sign challenge, provide one. The value // doesn't matter. var defaultSignChallenge = ''; var encodedSignChallenges = encodeSignChallenges(this.signChallenges_, defaultSignChallenge, this.appId_); var request = { type: 'enroll_helper_request', enrollChallenges: encodedEnrollChallenges, signData: encodedSignChallenges, logMsgUrl: this.logMsgUrl_ }; if (!this.timer_.expired()) { request.timeout = this.timer_.millisecondsUntilExpired() / 1000.0; request.timeoutSeconds = this.timer_.millisecondsUntilExpired() / 1000.0; } // Begin fetching/checking the app ids. var enrollAppIds = []; if (this.appId_) { enrollAppIds.push(this.appId_); } for (var i = 0; i < this.enrollChallenges_.length; i++) { if (this.enrollChallenges_[i].hasOwnProperty('appId')) { enrollAppIds.push(this.enrollChallenges_[i]['appId']); } } // Sanity check if (!enrollAppIds.length) { console.warn(UTIL_fmt('empty enroll app ids?')); this.notifyError_({errorCode: ErrorCodes.BAD_REQUEST}); return; } var self = this; this.checkAppIds_(enrollAppIds, function(result) { if (self.done_) return; if (result) { self.handler_ = FACTORY_REGISTRY.getRequestHelper().getHandler(request); if (self.handler_) { var helperComplete = /** @type {function(HelperReply)} */ (self.helperComplete_.bind(self)); self.handler_.run(helperComplete); } else { self.notifyError_({errorCode: ErrorCodes.OTHER_ERROR}); } } else { self.notifyError_({errorCode: ErrorCodes.BAD_REQUEST}); } }); }; /** * Encodes the enroll challenge as an enroll helper challenge. * @param {EnrollChallenge} enrollChallenge The enroll challenge to encode. * @param {string=} opt_appId The app id for the entire request. * @return {EnrollHelperChallenge} The encoded challenge. * @private */ Enroller.encodeEnrollChallenge_ = function(enrollChallenge, opt_appId) { var encodedChallenge = {}; var version; if (enrollChallenge['version']) { version = enrollChallenge['version']; } else { // Version is implicitly V1 if not specified. version = 'U2F_V1'; } encodedChallenge['version'] = version; encodedChallenge['challengeHash'] = enrollChallenge['challenge']; var appId; if (enrollChallenge['appId']) { appId = enrollChallenge['appId']; } else { appId = opt_appId; } if (!appId) { // Sanity check. (Other code should fail if it's not set.) console.warn(UTIL_fmt('No appId?')); } encodedChallenge['appIdHash'] = B64_encode(sha256HashOfString(appId)); return /** @type {EnrollHelperChallenge} */ (encodedChallenge); }; /** * Encodes the given enroll challenges using this enroller's state. * @param {Array} enrollChallenges The enroll challenges. * @param {string=} opt_appId The app id for the entire request. * @return {!Array} The encoded enroll challenges. * @private */ Enroller.prototype.encodeEnrollChallenges_ = function(enrollChallenges, opt_appId) { var challenges = []; for (var i = 0; i < enrollChallenges.length; i++) { var enrollChallenge = enrollChallenges[i]; var version = enrollChallenge.version; if (!version) { // Version is implicitly V1 if not specified. version = 'U2F_V1'; } if (version == 'U2F_V2') { var modifiedChallenge = {}; for (var k in enrollChallenge) { modifiedChallenge[k] = enrollChallenge[k]; } // V2 enroll responses contain signatures over a browser data object, // which we're constructing here. The browser data object contains, among // other things, the server challenge. var serverChallenge = enrollChallenge['challenge']; var browserData = makeEnrollBrowserData( serverChallenge, this.sender_.origin, this.sender_.tlsChannelId); // Replace the challenge with the hash of the browser data. modifiedChallenge['challenge'] = B64_encode(sha256HashOfString(browserData)); this.browserData_[version] = B64_encode(UTIL_StringToBytes(browserData)); challenges.push(Enroller.encodeEnrollChallenge_( /** @type {EnrollChallenge} */ (modifiedChallenge), opt_appId)); } else { challenges.push( Enroller.encodeEnrollChallenge_(enrollChallenge, opt_appId)); } } return challenges; }; /** * Checks the app ids associated with this enroll request, and calls a callback * with the result of the check. * @param {!Array} enrollAppIds The app ids in the enroll challenge * portion of the enroll request. * @param {function(boolean)} cb Called with the result of the check. * @private */ Enroller.prototype.checkAppIds_ = function(enrollAppIds, cb) { var appIds = UTIL_unionArrays(enrollAppIds, getDistinctAppIds(this.signChallenges_)); FACTORY_REGISTRY.getOriginChecker() .canClaimAppIds(this.sender_.origin, appIds) .then(this.originChecked_.bind(this, appIds, cb)); }; /** * Called with the result of checking the origin. When the origin is allowed * to claim the app ids, begins checking whether the app ids also list the * origin. * @param {!Array} appIds The app ids. * @param {function(boolean)} cb Called with the result of the check. * @param {boolean} result Whether the origin could claim the app ids. * @private */ Enroller.prototype.originChecked_ = function(appIds, cb, result) { if (!result) { this.notifyError_({errorCode: ErrorCodes.BAD_REQUEST}); return; } var appIdChecker = FACTORY_REGISTRY.getAppIdCheckerFactory().create(); appIdChecker. checkAppIds( this.timer_.clone(), this.sender_.origin, appIds, this.allowHttp_, this.logMsgUrl_) .then(cb); }; /** Closes this enroller. */ Enroller.prototype.close = function() { if (this.handler_) { this.handler_.close(); this.handler_ = null; } this.done_ = true; }; /** * Notifies the caller with the error. * @param {U2fError} error Error. * @private */ Enroller.prototype.notifyError_ = function(error) { if (this.done_) return; this.close(); this.done_ = true; this.errorCb_(error); }; /** * Notifies the caller of success with the provided response data. * @param {string} u2fVersion Protocol version * @param {string} info Response data * @param {string|undefined} opt_browserData Browser data used * @private */ Enroller.prototype.notifySuccess_ = function(u2fVersion, info, opt_browserData) { if (this.done_) return; this.close(); this.done_ = true; this.successCb_(u2fVersion, info, opt_browserData); }; /** * Called by the helper upon completion. * @param {EnrollHelperReply} reply The result of the enroll request. * @private */ Enroller.prototype.helperComplete_ = function(reply) { if (reply.code) { var reportedError = mapDeviceStatusCodeToU2fError(reply.code); console.log(UTIL_fmt('helper reported ' + reply.code.toString(16) + ', returning ' + reportedError.errorCode)); this.notifyError_(reportedError); } else { console.log(UTIL_fmt('Gnubby enrollment succeeded!!!!!')); var browserData; if (reply.version == 'U2F_V2') { // For U2F_V2, the challenge sent to the gnubby is modified to be the hash // of the browser data. Include the browser data. browserData = this.browserData_[reply.version]; } this.notifySuccess_(/** @type {string} */ (reply.version), /** @type {string} */ (reply.enrollData), browserData); } }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Implements an enroll handler using USB gnubbies. */ 'use strict'; /** * @param {!EnrollHelperRequest} request The enroll request. * @constructor * @implements {RequestHandler} */ function UsbEnrollHandler(request) { /** @private {!EnrollHelperRequest} */ this.request_ = request; /** @private {Array} */ this.waitingForTouchGnubbies_ = []; /** @private {boolean} */ this.closed_ = false; /** @private {boolean} */ this.notified_ = false; } /** * Default timeout value in case the caller never provides a valid timeout. * @const */ UsbEnrollHandler.DEFAULT_TIMEOUT_MILLIS = 30 * 1000; /** * @param {RequestHandlerCallback} cb Called back with the result of the * request, and an optional source for the result. * @return {boolean} Whether this handler could be run. */ UsbEnrollHandler.prototype.run = function(cb) { var timeoutMillis = this.request_.timeoutSeconds ? this.request_.timeoutSeconds * 1000 : UsbEnrollHandler.DEFAULT_TIMEOUT_MILLIS; /** @private {Countdown} */ this.timer_ = DEVICE_FACTORY_REGISTRY.getCountdownFactory().createTimer( timeoutMillis); this.enrollChallenges = this.request_.enrollChallenges; /** @private {RequestHandlerCallback} */ this.cb_ = cb; this.signer_ = new MultipleGnubbySigner( true /* forEnroll */, this.signerCompleted_.bind(this), this.signerFoundGnubby_.bind(this), timeoutMillis, this.request_.logMsgUrl); return this.signer_.doSign(this.request_.signData); }; /** Closes this helper. */ UsbEnrollHandler.prototype.close = function() { this.closed_ = true; for (var i = 0; i < this.waitingForTouchGnubbies_.length; i++) { this.waitingForTouchGnubbies_[i].closeWhenIdle(); } this.waitingForTouchGnubbies_ = []; if (this.signer_) { this.signer_.close(); this.signer_ = null; } }; /** * Called when a MultipleGnubbySigner completes its sign request. * @param {boolean} anyPending Whether any gnubbies are pending. * @private */ UsbEnrollHandler.prototype.signerCompleted_ = function(anyPending) { if (!this.anyGnubbiesFound_ || this.anyTimeout_ || anyPending || this.timer_.expired()) { this.notifyError_(DeviceStatusCodes.TIMEOUT_STATUS); } else { // Do nothing: signerFoundGnubby will have been called with each succeeding // gnubby. } }; /** * Called when a MultipleGnubbySigner finds a gnubby that can enroll. * @param {MultipleSignerResult} signResult Signature results * @param {boolean} moreExpected Whether the signer expects to report * results from more gnubbies. * @private */ UsbEnrollHandler.prototype.signerFoundGnubby_ = function(signResult, moreExpected) { if (!signResult.code) { // If the signer reports a gnubby can sign, report this immediately to the // caller, as the gnubby is already enrolled. Map ok to WRONG_DATA, so the // caller knows what to do. this.notifyError_(DeviceStatusCodes.WRONG_DATA_STATUS); } else if (SingleGnubbySigner.signErrorIndicatesInvalidKeyHandle( signResult.code)) { var gnubby = signResult['gnubby']; // A valid helper request contains at least one enroll challenge, so use // the app id hash from the first challenge. var appIdHash = this.request_.enrollChallenges[0].appIdHash; DEVICE_FACTORY_REGISTRY.getGnubbyFactory().notEnrolledPrerequisiteCheck( gnubby, appIdHash, this.gnubbyPrerequisitesChecked_.bind(this)); } else { // Unexpected error in signing? Send this immediately to the caller. this.notifyError_(signResult.code); } }; /** * Called with the result of a gnubby prerequisite check. * @param {number} rc The result of the prerequisite check. * @param {Gnubby=} opt_gnubby The gnubby whose prerequisites were checked. * @private */ UsbEnrollHandler.prototype.gnubbyPrerequisitesChecked_ = function(rc, opt_gnubby) { if (rc || this.timer_.expired()) { // Do nothing: // If the timer is expired, the signerCompleted_ callback will indicate // timeout to the caller. // If there's an error, this gnubby is ineligible, but there's nothing we // can do about that here. return; } // If the callback succeeded, the gnubby is not null. var gnubby = /** @type {Gnubby} */ (opt_gnubby); this.anyGnubbiesFound_ = true; this.waitingForTouchGnubbies_.push(gnubby); this.matchEnrollVersionToGnubby_(gnubby); }; /** * Attempts to match the gnubby's U2F version with an appropriate enroll * challenge. * @param {Gnubby} gnubby Gnubby instance * @private */ UsbEnrollHandler.prototype.matchEnrollVersionToGnubby_ = function(gnubby) { if (!gnubby) { console.warn(UTIL_fmt('no gnubby, WTF?')); return; } gnubby.version(this.gnubbyVersioned_.bind(this, gnubby)); }; /** * Called with the result of a version command. * @param {Gnubby} gnubby Gnubby instance * @param {number} rc result of version command. * @param {ArrayBuffer=} data version. * @private */ UsbEnrollHandler.prototype.gnubbyVersioned_ = function(gnubby, rc, data) { if (rc) { this.removeWrongVersionGnubby_(gnubby); return; } var version = UTIL_BytesToString(new Uint8Array(data || null)); this.tryEnroll_(gnubby, version); }; /** * Drops the gnubby from the list of eligible gnubbies. * @param {Gnubby} gnubby Gnubby instance * @private */ UsbEnrollHandler.prototype.removeWaitingGnubby_ = function(gnubby) { gnubby.closeWhenIdle(); var index = this.waitingForTouchGnubbies_.indexOf(gnubby); if (index >= 0) { this.waitingForTouchGnubbies_.splice(index, 1); } }; /** * Drops the gnubby from the list of eligible gnubbies, as it has the wrong * version. * @param {Gnubby} gnubby Gnubby instance * @private */ UsbEnrollHandler.prototype.removeWrongVersionGnubby_ = function(gnubby) { this.removeWaitingGnubby_(gnubby); if (!this.waitingForTouchGnubbies_.length) { // Whoops, this was the last gnubby. this.anyGnubbiesFound_ = false; if (this.timer_.expired()) { this.notifyError_(DeviceStatusCodes.TIMEOUT_STATUS); } else if (this.signer_) { this.signer_.reScanDevices(); } } }; /** * Attempts enrolling a particular gnubby with a challenge of the appropriate * version. * @param {Gnubby} gnubby Gnubby instance * @param {string} version Protocol version * @private */ UsbEnrollHandler.prototype.tryEnroll_ = function(gnubby, version) { var challenge = this.getChallengeOfVersion_(version); if (!challenge) { this.removeWrongVersionGnubby_(gnubby); return; } var challengeValue = B64_decode(challenge['challengeHash']); var appIdHash = challenge['appIdHash']; var individualAttest = DEVICE_FACTORY_REGISTRY.getIndividualAttestation(). requestIndividualAttestation(appIdHash); gnubby.enroll(challengeValue, B64_decode(appIdHash), this.enrollCallback_.bind(this, gnubby, version), individualAttest); }; /** * Finds the (first) challenge of the given version in this helper's challenges. * @param {string} version Protocol version * @return {Object} challenge, if found, or null if not. * @private */ UsbEnrollHandler.prototype.getChallengeOfVersion_ = function(version) { for (var i = 0; i < this.enrollChallenges.length; i++) { if (this.enrollChallenges[i]['version'] == version) { return this.enrollChallenges[i]; } } return null; }; /** * Called with the result of an enroll request to a gnubby. * @param {Gnubby} gnubby Gnubby instance * @param {string} version Protocol version * @param {number} code Status code * @param {ArrayBuffer=} infoArray Returned data * @private */ UsbEnrollHandler.prototype.enrollCallback_ = function(gnubby, version, code, infoArray) { if (this.notified_) { // Enroll completed after previous success or failure. Disregard. return; } switch (code) { case -GnubbyDevice.GONE: // Close this gnubby. this.removeWaitingGnubby_(gnubby); if (!this.waitingForTouchGnubbies_.length) { // Last enroll attempt is complete and last gnubby is gone. this.anyGnubbiesFound_ = false; if (this.timer_.expired()) { this.notifyError_(DeviceStatusCodes.TIMEOUT_STATUS); } else if (this.signer_) { this.signer_.reScanDevices(); } } break; case DeviceStatusCodes.WAIT_TOUCH_STATUS: case DeviceStatusCodes.BUSY_STATUS: case DeviceStatusCodes.TIMEOUT_STATUS: if (this.timer_.expired()) { // Record that at least one gnubby timed out, to return a timeout status // from the complete callback if no other eligible gnubbies are found. /** @private {boolean} */ this.anyTimeout_ = true; // Close this gnubby. this.removeWaitingGnubby_(gnubby); if (!this.waitingForTouchGnubbies_.length) { // Last enroll attempt is complete: return this error. console.log(UTIL_fmt('timeout (' + code.toString(16) + ') enrolling')); this.notifyError_(DeviceStatusCodes.TIMEOUT_STATUS); } } else { DEVICE_FACTORY_REGISTRY.getCountdownFactory().createTimer( UsbEnrollHandler.ENUMERATE_DELAY_INTERVAL_MILLIS, this.tryEnroll_.bind(this, gnubby, version)); } break; case DeviceStatusCodes.OK_STATUS: var info = B64_encode(new Uint8Array(infoArray || [])); this.notifySuccess_(version, info); break; default: console.log(UTIL_fmt('Failed to enroll gnubby: ' + code)); this.notifyError_(code); break; } }; /** * How long to delay between repeated enroll attempts, in milliseconds. * @const */ UsbEnrollHandler.ENUMERATE_DELAY_INTERVAL_MILLIS = 200; /** * Notifies the callback with an error code. * @param {number} code The error code to report. * @private */ UsbEnrollHandler.prototype.notifyError_ = function(code) { if (this.notified_ || this.closed_) return; this.notified_ = true; this.close(); var reply = { 'type': 'enroll_helper_reply', 'code': code }; this.cb_(reply); }; /** * @param {string} version Protocol version * @param {string} info B64 encoded success data * @private */ UsbEnrollHandler.prototype.notifySuccess_ = function(version, info) { if (this.notified_ || this.closed_) return; this.notified_ = true; this.close(); var reply = { 'type': 'enroll_helper_reply', 'code': DeviceStatusCodes.OK_STATUS, 'version': version, 'enrollData': info }; this.cb_(reply); }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Queue of pending requests from an origin. * */ 'use strict'; /** * Represents a queued request. Once given a token, call complete() once the * request is processed (or dropped.) * @interface */ function QueuedRequestToken() {} /** Completes (or cancels) this queued request. */ QueuedRequestToken.prototype.complete = function() {}; /** * @param {!RequestQueue} queue The queue for this request. * @param {number} id An id for this request. * @param {function(QueuedRequestToken)} beginCb Called when work may begin on * this request. * @param {RequestToken} opt_prev Previous request in the same queue. * @param {RequestToken} opt_next Next request in the same queue. * @constructor * @implements {QueuedRequestToken} */ function RequestToken(queue, id, beginCb, opt_prev, opt_next) { /** @private {!RequestQueue} */ this.queue_ = queue; /** @private {number} */ this.id_ = id; /** @type {function(QueuedRequestToken)} */ this.beginCb = beginCb; /** @type {RequestToken} */ this.prev = null; /** @type {RequestToken} */ this.next = null; /** @private {boolean} */ this.completed_ = false; } /** Completes (or cancels) this queued request. */ RequestToken.prototype.complete = function() { if (this.completed_) { // Either the caller called us more than once, or the timer is firing. // Either way, nothing more to do here. return; } this.completed_ = true; this.queue_.complete(this); }; /** @return {boolean} Whether this token has already completed. */ RequestToken.prototype.completed = function() { return this.completed_; }; /** * @param {!SystemTimer} sysTimer A system timer implementation. * @constructor */ function RequestQueue(sysTimer) { /** @private {!SystemTimer} */ this.sysTimer_ = sysTimer; /** @private {RequestToken} */ this.head_ = null; /** @private {RequestToken} */ this.tail_ = null; /** @private {number} */ this.id_ = 0; } /** * Inserts this token into the queue. * @param {RequestToken} token Queue token * @private */ RequestQueue.prototype.insertToken_ = function(token) { console.log(UTIL_fmt('token ' + this.id_ + ' inserted')); if (this.head_ === null) { this.head_ = token; this.tail_ = token; } else { if (!this.tail_) throw 'Non-empty list missing tail'; this.tail_.next = token; token.prev = this.tail_; this.tail_ = token; } }; /** * Removes this token from the queue. * @param {RequestToken} token Queue token * @private */ RequestQueue.prototype.removeToken_ = function(token) { if (token.next) { token.next.prev = token.prev; } if (token.prev) { token.prev.next = token.next; } if (this.head_ === token && this.tail_ === token) { this.head_ = this.tail_ = null; } else { if (this.head_ === token) { this.head_ = token.next; this.head_.prev = null; } if (this.tail_ === token) { this.tail_ = token.prev; this.tail_.next = null; } } token.prev = token.next = null; }; /** * Completes this token's request, and begins the next queued request, if one * exists. * @param {RequestToken} token Queue token */ RequestQueue.prototype.complete = function(token) { console.log(UTIL_fmt('token ' + this.id_ + ' completed')); var next = token.next; this.removeToken_(token); if (next) { next.beginCb(next); } }; /** @return {boolean} Whether this queue is empty. */ RequestQueue.prototype.empty = function() { return this.head_ === null; }; /** * Queues this request, and, if it's the first request, begins work on it. * @param {function(QueuedRequestToken)} beginCb Called when work begins on this * request. * @param {Countdown} timer Countdown timer * @return {QueuedRequestToken} A token for the request. */ RequestQueue.prototype.queueRequest = function(beginCb, timer) { var startNow = this.empty(); var token = new RequestToken(this, ++this.id_, beginCb); // Clone the timer to set a callback on it, which will ensure complete() is // eventually called, even if the caller never gets around to it. timer.clone(token.complete.bind(token)); this.insertToken_(token); if (startNow) { this.sysTimer_.setTimeout(function() { if (!token.completed()) { token.beginCb(token); } }, 0); } return token; }; /** * @param {!SystemTimer} sysTimer A system timer implementation. * @constructor */ function OriginKeyedRequestQueue(sysTimer) { /** @private {!SystemTimer} */ this.sysTimer_ = sysTimer; /** @private {Object} */ this.requests_ = {}; } /** * Queues this request, and, if it's the first request, begins work on it. * @param {string} appId Application Id * @param {string} origin Request origin * @param {function(QueuedRequestToken)} beginCb Called when work begins on this * request. * @param {Countdown} timer Countdown timer * @return {QueuedRequestToken} A token for the request. */ OriginKeyedRequestQueue.prototype.queueRequest = function(appId, origin, beginCb, timer) { var key = appId + ' ' + origin; if (!this.requests_.hasOwnProperty(key)) { this.requests_[key] = new RequestQueue(this.sysTimer_); } var queue = this.requests_[key]; return queue.queueRequest(beginCb, timer); }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Handles web page requests for gnubby sign requests. * */ 'use strict'; var gnubbySignRequestQueue; function initRequestQueue() { gnubbySignRequestQueue = new OriginKeyedRequestQueue( FACTORY_REGISTRY.getSystemTimer()); } /** * Handles a U2F sign request. * @param {MessageSender} messageSender The message sender. * @param {Object} request The web page's sign request. * @param {Function} sendResponse Called back with the result of the sign. * @return {Closeable} Request handler that should be closed when the browser * message channel is closed. */ function handleU2fSignRequest(messageSender, request, sendResponse) { var sentResponse = false; var queuedSignRequest; function sendErrorResponse(error) { sendResponseOnce(sentResponse, queuedSignRequest, makeU2fErrorResponse(request, error.errorCode, error.errorMessage), sendResponse); } function sendSuccessResponse(challenge, info, browserData) { var responseData = makeU2fSignResponseDataFromChallenge(challenge); addSignatureAndBrowserDataToResponseData(responseData, info, browserData, 'clientData'); var response = makeU2fSuccessResponse(request, responseData); sendResponseOnce(sentResponse, queuedSignRequest, response, sendResponse); } var sender = createSenderFromMessageSender(messageSender); if (!sender) { sendErrorResponse({errorCode: ErrorCodes.BAD_REQUEST}); return null; } if (sender.origin.indexOf('http://') == 0 && !HTTP_ORIGINS_ALLOWED) { sendErrorResponse({errorCode: ErrorCodes.BAD_REQUEST}); return null; } queuedSignRequest = validateAndEnqueueSignRequest( sender, request, sendErrorResponse, sendSuccessResponse); return queuedSignRequest; } /** * Creates a base U2F responseData object from the server challenge. * @param {SignChallenge} challenge The server challenge. * @return {Object} The responseData object. */ function makeU2fSignResponseDataFromChallenge(challenge) { var responseData = { 'keyHandle': challenge['keyHandle'] }; return responseData; } /** * Adds the browser data and signature values to a responseData object. * @param {Object} responseData The "base" responseData object. * @param {string} signatureData The signature data. * @param {string} browserData The browser data generated from the challenge. * @param {string} browserDataName The name of the browser data key in the * responseData object. */ function addSignatureAndBrowserDataToResponseData(responseData, signatureData, browserData, browserDataName) { responseData[browserDataName] = B64_encode(UTIL_StringToBytes(browserData)); responseData['signatureData'] = signatureData; } /** * Validates a sign request using the given sign challenges name, and, if valid, * enqueues the sign request for eventual processing. * @param {WebRequestSender} sender The sender of the message. * @param {Object} request The web page's sign request. * @param {function(U2fError)} errorCb Error callback. * @param {function(SignChallenge, string, string)} successCb Success callback. * @return {Closeable} Request handler that should be closed when the browser * message channel is closed. */ function validateAndEnqueueSignRequest(sender, request, errorCb, successCb) { function timeout() { errorCb({errorCode: ErrorCodes.TIMEOUT}); } if (!isValidSignRequest(request)) { errorCb({errorCode: ErrorCodes.BAD_REQUEST}); return null; } // The typecast is necessary because getSignChallenges can return undefined. // On the other hand, a valid sign request can't contain an undefined sign // challenge list, so the typecast is safe. var signChallenges = /** @type {!Array} */ ( getSignChallenges(request)); var appId; if (request['appId']) { appId = request['appId']; } else if (signChallenges.length) { appId = signChallenges[0]['appId']; } // Sanity check if (!appId) { console.warn(UTIL_fmt('empty sign appId?')); errorCb({errorCode: ErrorCodes.BAD_REQUEST}); return null; } var timeoutValueSeconds = getTimeoutValueFromRequest(request); // Attenuate watchdog timeout value less than the signer's timeout, so the // watchdog only fires after the signer could reasonably have called back, // not before. timeoutValueSeconds = attenuateTimeoutInSeconds(timeoutValueSeconds, MINIMUM_TIMEOUT_ATTENUATION_SECONDS / 2); var watchdog = new WatchdogRequestHandler(timeoutValueSeconds, timeout); var wrappedErrorCb = watchdog.wrapCallback(errorCb); var wrappedSuccessCb = watchdog.wrapCallback(successCb); var timer = createAttenuatedTimer( FACTORY_REGISTRY.getCountdownFactory(), timeoutValueSeconds); var logMsgUrl = request['logMsgUrl']; // Queue sign requests from the same origin, to protect against simultaneous // sign-out on many tabs resulting in repeated sign-in requests. var queuedSignRequest = new QueuedSignRequest(signChallenges, timer, sender, wrappedErrorCb, wrappedSuccessCb, request['challenge'], appId, logMsgUrl); if (!gnubbySignRequestQueue) { initRequestQueue(); } var requestToken = gnubbySignRequestQueue.queueRequest(appId, sender.origin, queuedSignRequest.begin.bind(queuedSignRequest), timer); queuedSignRequest.setToken(requestToken); watchdog.setCloseable(queuedSignRequest); return watchdog; } /** * Returns whether the request appears to be a valid sign request. * @param {Object} request The request. * @return {boolean} Whether the request appears valid. */ function isValidSignRequest(request) { var signChallenges = getSignChallenges(request); if (!signChallenges) { return false; } var hasDefaultChallenge = request.hasOwnProperty('challenge'); var hasAppId = request.hasOwnProperty('appId'); // If the sign challenge array is empty, the global appId is required. if (!hasAppId && (!signChallenges || !signChallenges.length)) { return false; } return isValidSignChallengeArray(signChallenges, !hasDefaultChallenge, !hasAppId); } /** * Adapter class representing a queued sign request. * @param {!Array} signChallenges The sign challenges. * @param {Countdown} timer Timeout timer * @param {WebRequestSender} sender Message sender. * @param {function(U2fError)} errorCb Error callback * @param {function(SignChallenge, string, string)} successCb Success callback * @param {string|undefined} opt_defaultChallenge A default sign challenge * value, if a request does not provide one. * @param {string|undefined} opt_appId The app id for the entire request. * @param {string|undefined} opt_logMsgUrl Url to post log messages to * @constructor * @implements {Closeable} */ function QueuedSignRequest(signChallenges, timer, sender, errorCb, successCb, opt_defaultChallenge, opt_appId, opt_logMsgUrl) { /** @private {!Array} */ this.signChallenges_ = signChallenges; /** @private {Countdown} */ this.timer_ = timer.clone(this.close.bind(this)); /** @private {WebRequestSender} */ this.sender_ = sender; /** @private {function(U2fError)} */ this.errorCb_ = errorCb; /** @private {function(SignChallenge, string, string)} */ this.successCb_ = successCb; /** @private {string|undefined} */ this.defaultChallenge_ = opt_defaultChallenge; /** @private {string|undefined} */ this.appId_ = opt_appId; /** @private {string|undefined} */ this.logMsgUrl_ = opt_logMsgUrl; /** @private {boolean} */ this.begun_ = false; /** @private {boolean} */ this.closed_ = false; } /** Closes this sign request. */ QueuedSignRequest.prototype.close = function() { if (this.closed_) return; var hadBegunSigning = false; if (this.begun_ && this.signer_) { this.signer_.close(); hadBegunSigning = true; } if (this.token_) { if (hadBegunSigning) { console.log(UTIL_fmt('closing in-progress request')); } else { console.log(UTIL_fmt('closing timed-out request before processing')); } this.token_.complete(); } this.closed_ = true; }; /** * @param {QueuedRequestToken} token Token for this sign request. */ QueuedSignRequest.prototype.setToken = function(token) { /** @private {QueuedRequestToken} */ this.token_ = token; }; /** * Called when this sign request may begin work. * @param {QueuedRequestToken} token Token for this sign request. */ QueuedSignRequest.prototype.begin = function(token) { if (this.timer_.expired()) { console.log(UTIL_fmt('Queued request begun after timeout')); this.close(); this.errorCb_({errorCode: ErrorCodes.TIMEOUT}); return; } this.begun_ = true; this.setToken(token); this.signer_ = new Signer(this.timer_, this.sender_, this.signerFailed_.bind(this), this.signerSucceeded_.bind(this), this.logMsgUrl_); if (!this.signer_.setChallenges(this.signChallenges_, this.defaultChallenge_, this.appId_)) { token.complete(); this.errorCb_({errorCode: ErrorCodes.BAD_REQUEST}); } // Signer now has responsibility for maintaining timeout. this.timer_.clearTimeout(); }; /** * Called when this request's signer fails. * @param {U2fError} error The failure reported by the signer. * @private */ QueuedSignRequest.prototype.signerFailed_ = function(error) { this.token_.complete(); this.errorCb_(error); }; /** * Called when this request's signer succeeds. * @param {SignChallenge} challenge The challenge that was signed. * @param {string} info The sign result. * @param {string} browserData Browser data JSON * @private */ QueuedSignRequest.prototype.signerSucceeded_ = function(challenge, info, browserData) { this.token_.complete(); this.successCb_(challenge, info, browserData); }; /** * Creates an object to track signing with a gnubby. * @param {Countdown} timer Timer for sign request. * @param {WebRequestSender} sender The message sender. * @param {function(U2fError)} errorCb Called when the sign operation fails. * @param {function(SignChallenge, string, string)} successCb Called when the * sign operation succeeds. * @param {string=} opt_logMsgUrl The url to post log messages to. * @constructor */ function Signer(timer, sender, errorCb, successCb, opt_logMsgUrl) { /** @private {Countdown} */ this.timer_ = timer.clone(); /** @private {WebRequestSender} */ this.sender_ = sender; /** @private {function(U2fError)} */ this.errorCb_ = errorCb; /** @private {function(SignChallenge, string, string)} */ this.successCb_ = successCb; /** @private {string|undefined} */ this.logMsgUrl_ = opt_logMsgUrl; /** @private {boolean} */ this.challengesSet_ = false; /** @private {boolean} */ this.done_ = false; /** @private {Object} */ this.browserData_ = {}; /** @private {Object} */ this.serverChallenges_ = {}; // Allow http appIds for http origins. (Broken, but the caller deserves // what they get.) /** @private {boolean} */ this.allowHttp_ = this.sender_.origin ? this.sender_.origin.indexOf('http://') == 0 : false; /** @private {Closeable} */ this.handler_ = null; } /** * Sets the challenges to be signed. * @param {Array} signChallenges The challenges to set. * @param {string=} opt_defaultChallenge A default sign challenge * value, if a request does not provide one. * @param {string=} opt_appId The app id for the entire request. * @return {boolean} Whether the challenges could be set. */ Signer.prototype.setChallenges = function(signChallenges, opt_defaultChallenge, opt_appId) { if (this.challengesSet_ || this.done_) return false; if (this.timer_.expired()) { this.notifyError_({errorCode: ErrorCodes.TIMEOUT}); return true; } /** @private {Array} */ this.signChallenges_ = signChallenges; /** @private {string|undefined} */ this.defaultChallenge_ = opt_defaultChallenge; /** @private {string|undefined} */ this.appId_ = opt_appId; /** @private {boolean} */ this.challengesSet_ = true; this.checkAppIds_(); return true; }; /** * Checks the app ids of incoming requests. * @private */ Signer.prototype.checkAppIds_ = function() { var appIds = getDistinctAppIds(this.signChallenges_); if (this.appId_) { appIds = UTIL_unionArrays([this.appId_], appIds); } if (!appIds || !appIds.length) { var error = { errorCode: ErrorCodes.BAD_REQUEST, errorMessage: 'missing appId' }; this.notifyError_(error); return; } FACTORY_REGISTRY.getOriginChecker() .canClaimAppIds(this.sender_.origin, appIds) .then(this.originChecked_.bind(this, appIds)); }; /** * Called with the result of checking the origin. When the origin is allowed * to claim the app ids, begins checking whether the app ids also list the * origin. * @param {!Array} appIds The app ids. * @param {boolean} result Whether the origin could claim the app ids. * @private */ Signer.prototype.originChecked_ = function(appIds, result) { if (!result) { var error = { errorCode: ErrorCodes.BAD_REQUEST, errorMessage: 'bad appId' }; this.notifyError_(error); return; } var appIdChecker = FACTORY_REGISTRY.getAppIdCheckerFactory().create(); appIdChecker. checkAppIds( this.timer_.clone(), this.sender_.origin, /** @type {!Array} */ (appIds), this.allowHttp_, this.logMsgUrl_) .then(this.appIdChecked_.bind(this)); }; /** * Called with the result of checking app ids. When the app ids are valid, * adds the sign challenges to those being signed. * @param {boolean} result Whether the app ids are valid. * @private */ Signer.prototype.appIdChecked_ = function(result) { if (!result) { var error = { errorCode: ErrorCodes.BAD_REQUEST, errorMessage: 'bad appId' }; this.notifyError_(error); return; } if (!this.doSign_()) { this.notifyError_({errorCode: ErrorCodes.BAD_REQUEST}); return; } }; /** * Begins signing this signer's challenges. * @return {boolean} Whether the challenge could be added. * @private */ Signer.prototype.doSign_ = function() { // Create the browser data for each challenge. for (var i = 0; i < this.signChallenges_.length; i++) { var challenge = this.signChallenges_[i]; var serverChallenge; if (challenge.hasOwnProperty('challenge')) { serverChallenge = challenge['challenge']; } else { serverChallenge = this.defaultChallenge_; } if (!serverChallenge) { console.warn(UTIL_fmt('challenge missing')); return false; } var keyHandle = challenge['keyHandle']; var browserData = makeSignBrowserData(serverChallenge, this.sender_.origin, this.sender_.tlsChannelId); this.browserData_[keyHandle] = browserData; this.serverChallenges_[keyHandle] = challenge; } var encodedChallenges = encodeSignChallenges(this.signChallenges_, this.defaultChallenge_, this.appId_, this.getChallengeHash_.bind(this)); var timeoutSeconds = this.timer_.millisecondsUntilExpired() / 1000.0; var request = makeSignHelperRequest(encodedChallenges, timeoutSeconds, this.logMsgUrl_); this.handler_ = FACTORY_REGISTRY.getRequestHelper() .getHandler(/** @type {HelperRequest} */ (request)); if (!this.handler_) return false; return this.handler_.run(this.helperComplete_.bind(this)); }; /** * @param {string} keyHandle The key handle used with the challenge. * @param {string} challenge The challenge. * @return {string} The hashed challenge associated with the key * handle/challenge pair. * @private */ Signer.prototype.getChallengeHash_ = function(keyHandle, challenge) { return B64_encode(sha256HashOfString(this.browserData_[keyHandle])); }; /** Closes this signer. */ Signer.prototype.close = function() { this.close_(); }; /** * Closes this signer, and optionally notifies the caller of error. * @param {boolean=} opt_notifying When true, this method is being called in the * process of notifying the caller of an existing status. When false, * the caller is notified with a default error value, ErrorCodes.TIMEOUT. * @private */ Signer.prototype.close_ = function(opt_notifying) { if (this.handler_) { this.handler_.close(); this.handler_ = null; } this.timer_.clearTimeout(); if (!opt_notifying) { this.notifyError_({errorCode: ErrorCodes.TIMEOUT}); } }; /** * Notifies the caller of error. * @param {U2fError} error Error. * @private */ Signer.prototype.notifyError_ = function(error) { if (this.done_) return; this.done_ = true; this.close_(true); this.errorCb_(error); }; /** * Notifies the caller of success. * @param {SignChallenge} challenge The challenge that was signed. * @param {string} info The sign result. * @param {string} browserData Browser data JSON * @private */ Signer.prototype.notifySuccess_ = function(challenge, info, browserData) { if (this.done_) return; this.done_ = true; this.close_(true); this.successCb_(challenge, info, browserData); }; /** * Called by the helper upon completion. * @param {HelperReply} helperReply The result of the sign request. * @param {string=} opt_source The source of the sign result. * @private */ Signer.prototype.helperComplete_ = function(helperReply, opt_source) { if (helperReply.type != 'sign_helper_reply') { this.notifyError_({errorCode: ErrorCodes.OTHER_ERROR}); return; } var reply = /** @type {SignHelperReply} */ (helperReply); if (reply.code) { var reportedError = mapDeviceStatusCodeToU2fError(reply.code); console.log(UTIL_fmt('helper reported ' + reply.code.toString(16) + ', returning ' + reportedError.errorCode)); this.notifyError_(reportedError); } else { if (this.logMsgUrl_ && opt_source) { var logMsg = 'signed&source=' + opt_source; logMessage(logMsg, this.logMsgUrl_); } var key = reply.responseData['keyHandle']; var browserData = this.browserData_[key]; // Notify with server-provided challenge, not the encoded one: the // server-provided challenge contains additional fields it relies on. var serverChallenge = this.serverChallenges_[key]; this.notifySuccess_(serverChallenge, reply.responseData.signatureData, browserData); } }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview A single gnubby signer wraps the process of opening a gnubby, * signing each challenge in an array of challenges until a success condition * is satisfied, and finally yielding the gnubby upon success. * */ 'use strict'; /** * @typedef {{ * code: number, * gnubby: (Gnubby|undefined), * challenge: (SignHelperChallenge|undefined), * info: (ArrayBuffer|undefined) * }} */ var SingleSignerResult; /** * Creates a new sign handler with a gnubby. This handler will perform a sign * operation using each challenge in an array of challenges until its success * condition is satisified, or an error or timeout occurs. The success condition * is defined differently depending whether this signer is used for enrolling * or for signing: * * For enroll, success is defined as each challenge yielding wrong data. This * means this gnubby is not currently enrolled for any of the appIds in any * challenge. * * For sign, success is defined as any challenge yielding ok. * * The complete callback is called only when the signer reaches success or * failure, i.e. when there is no need for this signer to continue trying new * challenges. * * @param {GnubbyDeviceId} gnubbyId Which gnubby to open. * @param {boolean} forEnroll Whether this signer is signing for an attempted * enroll operation. * @param {function(SingleSignerResult)} * completeCb Called when this signer completes, i.e. no further results are * possible. * @param {Countdown} timer An advisory timer, beyond whose expiration the * signer will not attempt any new operations, assuming the caller is no * longer interested in the outcome. * @param {string=} opt_logMsgUrl A URL to post log messages to. * @constructor */ function SingleGnubbySigner(gnubbyId, forEnroll, completeCb, timer, opt_logMsgUrl) { /** @private {GnubbyDeviceId} */ this.gnubbyId_ = gnubbyId; /** @private {SingleGnubbySigner.State} */ this.state_ = SingleGnubbySigner.State.INIT; /** @private {boolean} */ this.forEnroll_ = forEnroll; /** @private {function(SingleSignerResult)} */ this.completeCb_ = completeCb; /** @private {Countdown} */ this.timer_ = timer; /** @private {string|undefined} */ this.logMsgUrl_ = opt_logMsgUrl; /** @private {!Array} */ this.challenges_ = []; /** @private {number} */ this.challengeIndex_ = 0; /** @private {boolean} */ this.challengesSet_ = false; /** @private {!Object} */ this.cachedError_ = []; } /** @enum {number} */ SingleGnubbySigner.State = { /** Initial state. */ INIT: 0, /** The signer is attempting to open a gnubby. */ OPENING: 1, /** The signer's gnubby opened, but is busy. */ BUSY: 2, /** The signer has an open gnubby, but no challenges to sign. */ IDLE: 3, /** The signer is currently signing a challenge. */ SIGNING: 4, /** The signer got a final outcome. */ COMPLETE: 5, /** The signer is closing its gnubby. */ CLOSING: 6, /** The signer is closed. */ CLOSED: 7 }; /** * @return {GnubbyDeviceId} This device id of the gnubby for this signer. */ SingleGnubbySigner.prototype.getDeviceId = function() { return this.gnubbyId_; }; /** * Closes this signer's gnubby, if it's held. */ SingleGnubbySigner.prototype.close = function() { if (!this.gnubby_) return; this.state_ = SingleGnubbySigner.State.CLOSING; this.gnubby_.closeWhenIdle(this.closed_.bind(this)); }; /** * Called when this signer's gnubby is closed. * @private */ SingleGnubbySigner.prototype.closed_ = function() { this.gnubby_ = null; this.state_ = SingleGnubbySigner.State.CLOSED; }; /** * Begins signing the given challenges. * @param {Array} challenges The challenges to sign. * @return {boolean} Whether the challenges were accepted. */ SingleGnubbySigner.prototype.doSign = function(challenges) { if (this.challengesSet_) { // Can't add new challenges once they've been set. return false; } if (challenges) { console.log(this.gnubby_); console.log(UTIL_fmt('adding ' + challenges.length + ' challenges')); for (var i = 0; i < challenges.length; i++) { this.challenges_.push(challenges[i]); } } this.challengesSet_ = true; switch (this.state_) { case SingleGnubbySigner.State.INIT: this.open_(); break; case SingleGnubbySigner.State.OPENING: // The open has already commenced, so accept the challenges, but don't do // anything. break; case SingleGnubbySigner.State.IDLE: if (this.challengeIndex_ < challenges.length) { // Challenges set: start signing. this.doSign_(this.challengeIndex_); } else { // An empty list of challenges can be set during enroll, when the user // has no existing enrolled gnubbies. It's unexpected during sign, but // returning WRONG_DATA satisfies the caller in either case. var self = this; window.setTimeout(function() { self.goToError_(DeviceStatusCodes.WRONG_DATA_STATUS); }, 0); } break; case SingleGnubbySigner.State.SIGNING: // Already signing, so don't kick off a new sign, but accept the added // challenges. break; default: return false; } return true; }; /** * Attempts to open this signer's gnubby, if it's not already open. * @private */ SingleGnubbySigner.prototype.open_ = function() { var appIdHash; if (this.challenges_.length) { // Assume the first challenge's appId is representative of all of them. appIdHash = B64_encode(this.challenges_[0].appIdHash); } if (this.state_ == SingleGnubbySigner.State.INIT) { this.state_ = SingleGnubbySigner.State.OPENING; DEVICE_FACTORY_REGISTRY.getGnubbyFactory().openGnubby( this.gnubbyId_, this.forEnroll_, this.openCallback_.bind(this), appIdHash, this.logMsgUrl_); } }; /** * How long to delay retrying a failed open. */ SingleGnubbySigner.OPEN_DELAY_MILLIS = 200; /** * How long to delay retrying a sign requiring touch. */ SingleGnubbySigner.SIGN_DELAY_MILLIS = 200; /** * @param {number} rc The result of the open operation. * @param {Gnubby=} gnubby The opened gnubby, if open was successful (or busy). * @private */ SingleGnubbySigner.prototype.openCallback_ = function(rc, gnubby) { if (this.state_ != SingleGnubbySigner.State.OPENING && this.state_ != SingleGnubbySigner.State.BUSY) { // Open completed after close, perhaps? Ignore. return; } switch (rc) { case DeviceStatusCodes.OK_STATUS: if (!gnubby) { console.warn(UTIL_fmt('open succeeded but gnubby is null, WTF?')); } else { this.gnubby_ = gnubby; this.gnubby_.version(this.versionCallback_.bind(this)); } break; case DeviceStatusCodes.BUSY_STATUS: this.gnubby_ = gnubby; this.state_ = SingleGnubbySigner.State.BUSY; // If there's still time, retry the open. if (!this.timer_ || !this.timer_.expired()) { var self = this; window.setTimeout(function() { if (self.gnubby_) { DEVICE_FACTORY_REGISTRY.getGnubbyFactory().openGnubby( self.gnubbyId_, self.forEnroll_, self.openCallback_.bind(self), self.logMsgUrl_); } }, SingleGnubbySigner.OPEN_DELAY_MILLIS); } else { this.goToError_(DeviceStatusCodes.BUSY_STATUS); } break; default: // TODO: This won't be confused with success, but should it be // part of the same namespace as the other error codes, which are // always in DeviceStatusCodes.*? this.goToError_(rc, true); } }; /** * Called with the result of a version command. * @param {number} rc Result of version command. * @param {ArrayBuffer=} opt_data Version. * @private */ SingleGnubbySigner.prototype.versionCallback_ = function(rc, opt_data) { if (rc == DeviceStatusCodes.BUSY_STATUS) { if (this.timer_ && this.timer_.expired()) { this.goToError_(DeviceStatusCodes.TIMEOUT_STATUS); return; } // There's still time: resync and retry. var self = this; this.gnubby_.sync(function(code) { if (code) { self.goToError_(code, true); return; } self.gnubby_.version(self.versionCallback_.bind(self)); }); return; } if (rc) { this.goToError_(rc, true); return; } this.state_ = SingleGnubbySigner.State.IDLE; this.version_ = UTIL_BytesToString(new Uint8Array(opt_data || [])); this.doSign_(this.challengeIndex_); }; /** * @param {number} challengeIndex Index of challenge to sign * @private */ SingleGnubbySigner.prototype.doSign_ = function(challengeIndex) { if (!this.gnubby_) { // Already closed? Nothing to do. return; } if (this.timer_ && this.timer_.expired()) { // If the timer is expired, that means we never got a success response. // We could have gotten wrong data on a partial set of challenges, but this // means we don't yet know the final outcome. In any event, we don't yet // know the final outcome: return timeout. this.goToError_(DeviceStatusCodes.TIMEOUT_STATUS); return; } if (!this.challengesSet_) { this.state_ = SingleGnubbySigner.State.IDLE; return; } this.state_ = SingleGnubbySigner.State.SIGNING; if (challengeIndex >= this.challenges_.length) { this.signCallback_(challengeIndex, DeviceStatusCodes.WRONG_DATA_STATUS); return; } var challenge = this.challenges_[challengeIndex]; var challengeHash = challenge.challengeHash; var appIdHash = challenge.appIdHash; var keyHandle = challenge.keyHandle; if (this.cachedError_.hasOwnProperty(keyHandle)) { // Cache hit: return wrong data again. this.signCallback_(challengeIndex, this.cachedError_[keyHandle]); } else if (challenge.version && challenge.version != this.version_) { // Sign challenge for a different version of gnubby: return wrong data. this.signCallback_(challengeIndex, DeviceStatusCodes.WRONG_DATA_STATUS); } else { var nowink = false; this.gnubby_.sign(challengeHash, appIdHash, keyHandle, this.signCallback_.bind(this, challengeIndex), nowink); } }; /** * @param {number} code The result of a sign operation. * @return {boolean} Whether the error indicates the key handle is invalid * for this gnubby. */ SingleGnubbySigner.signErrorIndicatesInvalidKeyHandle = function(code) { return (code == DeviceStatusCodes.WRONG_DATA_STATUS || code == DeviceStatusCodes.WRONG_LENGTH_STATUS || code == DeviceStatusCodes.INVALID_DATA_STATUS); }; /** * Called with the result of a single sign operation. * @param {number} challengeIndex the index of the challenge just attempted * @param {number} code the result of the sign operation * @param {ArrayBuffer=} opt_info Optional result data * @private */ SingleGnubbySigner.prototype.signCallback_ = function(challengeIndex, code, opt_info) { console.log(UTIL_fmt('gnubby ' + JSON.stringify(this.gnubbyId_) + ', challenge ' + challengeIndex + ' yielded ' + code.toString(16))); if (this.state_ != SingleGnubbySigner.State.SIGNING) { console.log(UTIL_fmt('already done!')); // We're done, the caller's no longer interested. return; } // Cache certain idempotent errors, re-asking the gnubby to sign it // won't produce different results. if (SingleGnubbySigner.signErrorIndicatesInvalidKeyHandle(code)) { if (challengeIndex < this.challenges_.length) { var challenge = this.challenges_[challengeIndex]; if (!this.cachedError_.hasOwnProperty(challenge.keyHandle)) { this.cachedError_[challenge.keyHandle] = code; } } } var self = this; switch (code) { case DeviceStatusCodes.GONE_STATUS: this.goToError_(code); break; case DeviceStatusCodes.TIMEOUT_STATUS: this.gnubby_.sync(this.synced_.bind(this)); break; case DeviceStatusCodes.BUSY_STATUS: this.doSign_(this.challengeIndex_); break; case DeviceStatusCodes.OK_STATUS: // Lower bound on the minimum length, signature length can vary. var MIN_SIGNATURE_LENGTH = 7; if (!opt_info || opt_info.byteLength < MIN_SIGNATURE_LENGTH) { console.error(UTIL_fmt('Got short response to sign request (' + (opt_info ? opt_info.byteLength : 0) + ' bytes), WTF?')); } if (this.forEnroll_) { this.goToError_(code); } else { this.goToSuccess_(code, this.challenges_[challengeIndex], opt_info); } break; case DeviceStatusCodes.WAIT_TOUCH_STATUS: window.setTimeout(function() { self.doSign_(self.challengeIndex_); }, SingleGnubbySigner.SIGN_DELAY_MILLIS); break; case DeviceStatusCodes.WRONG_DATA_STATUS: case DeviceStatusCodes.WRONG_LENGTH_STATUS: case DeviceStatusCodes.INVALID_DATA_STATUS: if (this.challengeIndex_ < this.challenges_.length - 1) { this.doSign_(++this.challengeIndex_); } else if (this.forEnroll_) { this.goToSuccess_(code); } else { this.goToError_(code); } break; default: if (this.forEnroll_) { this.goToError_(code, true); } else if (this.challengeIndex_ < this.challenges_.length - 1) { this.doSign_(++this.challengeIndex_); } else { this.goToError_(code, true); } } }; /** * Called with the response of a sync command, called when a sign yields a * timeout to reassert control over the gnubby. * @param {number} code Error code * @private */ SingleGnubbySigner.prototype.synced_ = function(code) { if (code) { this.goToError_(code, true); return; } this.doSign_(this.challengeIndex_); }; /** * Switches to the error state, and notifies caller. * @param {number} code Error code * @param {boolean=} opt_warn Whether to warn in the console about the error. * @private */ SingleGnubbySigner.prototype.goToError_ = function(code, opt_warn) { this.state_ = SingleGnubbySigner.State.COMPLETE; var logFn = opt_warn ? console.warn.bind(console) : console.log.bind(console); logFn(UTIL_fmt('failed (' + code.toString(16) + ')')); var result = { code: code }; if (!this.forEnroll_ && code == DeviceStatusCodes.WRONG_DATA_STATUS) { // When a device yields WRONG_DATA to all sign challenges, and this is a // sign request, we don't want to yield to the web page that it's not // enrolled just yet: we want the user to tap the device first. We'll // report the gnubby to the caller and let it close it instead of closing // it here. result.gnubby = this.gnubby_; } else { // Since this gnubby can no longer produce a useful result, go ahead and // close it. this.close(); } this.completeCb_(result); }; /** * Switches to the success state, and notifies caller. * @param {number} code Status code * @param {SignHelperChallenge=} opt_challenge The challenge signed * @param {ArrayBuffer=} opt_info Optional result data * @private */ SingleGnubbySigner.prototype.goToSuccess_ = function(code, opt_challenge, opt_info) { this.state_ = SingleGnubbySigner.State.COMPLETE; console.log(UTIL_fmt('success (' + code.toString(16) + ')')); var result = { code: code, gnubby: this.gnubby_ }; if (opt_challenge || opt_info) { if (opt_challenge) { result['challenge'] = opt_challenge; } if (opt_info) { result['info'] = opt_info; } } this.completeCb_(result); // this.gnubby_ is now owned by completeCb_. this.gnubby_ = null; }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview A multiple gnubby signer wraps the process of opening a number * of gnubbies, signing each challenge in an array of challenges until a * success condition is satisfied, and yielding each succeeding gnubby. * */ 'use strict'; /** * @typedef {{ * code: number, * gnubbyId: GnubbyDeviceId, * challenge: (SignHelperChallenge|undefined), * info: (ArrayBuffer|undefined) * }} */ var MultipleSignerResult; /** * Creates a new sign handler that manages signing with all the available * gnubbies. * @param {boolean} forEnroll Whether this signer is signing for an attempted * enroll operation. * @param {function(boolean)} allCompleteCb Called when this signer completes * sign attempts, i.e. no further results will be produced. The parameter * indicates whether any gnubbies are present that have not yet produced a * final result. * @param {function(MultipleSignerResult, boolean)} gnubbyCompleteCb * Called with each gnubby/challenge that yields a final result, along with * whether this signer expects to produce more results. The boolean is a * hint rather than a promise: it's possible for this signer to produce * further results after saying it doesn't expect more, or to fail to * produce further results after saying it does. * @param {number} timeoutMillis A timeout value, beyond whose expiration the * signer will not attempt any new operations, assuming the caller is no * longer interested in the outcome. * @param {string=} opt_logMsgUrl A URL to post log messages to. * @constructor */ function MultipleGnubbySigner(forEnroll, allCompleteCb, gnubbyCompleteCb, timeoutMillis, opt_logMsgUrl) { /** @private {boolean} */ this.forEnroll_ = forEnroll; /** @private {function(boolean)} */ this.allCompleteCb_ = allCompleteCb; /** @private {function(MultipleSignerResult, boolean)} */ this.gnubbyCompleteCb_ = gnubbyCompleteCb; /** @private {string|undefined} */ this.logMsgUrl_ = opt_logMsgUrl; /** @private {Array} */ this.challenges_ = []; /** @private {boolean} */ this.challengesSet_ = false; /** @private {boolean} */ this.complete_ = false; /** @private {number} */ this.numComplete_ = 0; /** @private {!Object} */ this.gnubbies_ = {}; /** @private {Countdown} */ this.timer_ = DEVICE_FACTORY_REGISTRY.getCountdownFactory() .createTimer(timeoutMillis); /** @private {Countdown} */ this.reenumerateTimer_ = DEVICE_FACTORY_REGISTRY.getCountdownFactory() .createTimer(timeoutMillis); } /** * @typedef {{ * index: string, * signer: SingleGnubbySigner, * stillGoing: boolean, * errorStatus: number * }} */ var GnubbyTracker; /** * Closes this signer's gnubbies, if any are open. */ MultipleGnubbySigner.prototype.close = function() { for (var k in this.gnubbies_) { this.gnubbies_[k].signer.close(); } this.reenumerateTimer_.clearTimeout(); this.timer_.clearTimeout(); if (this.reenumerateIntervalTimer_) { this.reenumerateIntervalTimer_.clearTimeout(); } }; /** * Begins signing the given challenges. * @param {Array} challenges The challenges to sign. * @return {boolean} whether the challenges were successfully added. */ MultipleGnubbySigner.prototype.doSign = function(challenges) { if (this.challengesSet_) { // Can't add new challenges once they're finalized. return false; } if (challenges) { for (var i = 0; i < challenges.length; i++) { var decodedChallenge = {}; var challenge = challenges[i]; decodedChallenge['challengeHash'] = B64_decode(challenge['challengeHash']); decodedChallenge['appIdHash'] = B64_decode(challenge['appIdHash']); decodedChallenge['keyHandle'] = B64_decode(challenge['keyHandle']); if (challenge['version']) { decodedChallenge['version'] = challenge['version']; } this.challenges_.push(decodedChallenge); } } this.challengesSet_ = true; this.enumerateGnubbies_(); return true; }; /** * Signals this signer to rescan for gnubbies. Useful when the caller has * knowledge that the last device has been removed, and can notify this class * before it will discover it on its own. */ MultipleGnubbySigner.prototype.reScanDevices = function() { if (this.reenumerateIntervalTimer_) { this.reenumerateIntervalTimer_.clearTimeout(); } this.maybeReEnumerateGnubbies_(true); }; /** * Enumerates gnubbies. * @private */ MultipleGnubbySigner.prototype.enumerateGnubbies_ = function() { DEVICE_FACTORY_REGISTRY.getGnubbyFactory().enumerate( this.enumerateCallback_.bind(this)); }; /** * Called with the result of enumerating gnubbies. * @param {number} rc The return code from enumerating. * @param {Array} ids The gnubbies enumerated. * @private */ MultipleGnubbySigner.prototype.enumerateCallback_ = function(rc, ids) { if (this.complete_) { return; } if (rc || !ids || !ids.length) { this.maybeReEnumerateGnubbies_(true); return; } for (var i = 0; i < ids.length; i++) { this.addGnubby_(ids[i]); } this.maybeReEnumerateGnubbies_(false); }; /** * How frequently to reenumerate gnubbies when none are found, in milliseconds. * @const */ MultipleGnubbySigner.ACTIVE_REENUMERATE_INTERVAL_MILLIS = 200; /** * How frequently to reenumerate gnubbies when some are found, in milliseconds. * @const */ MultipleGnubbySigner.PASSIVE_REENUMERATE_INTERVAL_MILLIS = 3000; /** * Reenumerates gnubbies if there's still time. * @param {boolean} activeScan Whether to poll more aggressively, e.g. if * there are no devices present. * @private */ MultipleGnubbySigner.prototype.maybeReEnumerateGnubbies_ = function(activeScan) { if (this.reenumerateTimer_.expired()) { // If the timer is expired, call timeout_ if there aren't any still-running // gnubbies. (If there are some still running, the last will call timeout_ // itself.) if (!this.anyPending_()) { this.timeout_(false); } return; } // Reenumerate more aggressively if there are no gnubbies present than if // there are any. var reenumerateTimeoutMillis; if (activeScan) { reenumerateTimeoutMillis = MultipleGnubbySigner.ACTIVE_REENUMERATE_INTERVAL_MILLIS; } else { reenumerateTimeoutMillis = MultipleGnubbySigner.PASSIVE_REENUMERATE_INTERVAL_MILLIS; } if (reenumerateTimeoutMillis > this.reenumerateTimer_.millisecondsUntilExpired()) { reenumerateTimeoutMillis = this.reenumerateTimer_.millisecondsUntilExpired(); } /** @private {Countdown} */ this.reenumerateIntervalTimer_ = DEVICE_FACTORY_REGISTRY.getCountdownFactory().createTimer( reenumerateTimeoutMillis, this.enumerateGnubbies_.bind(this)); }; /** * Adds a new gnubby to this signer's list of gnubbies. (Only possible while * this signer is still signing: without this restriction, the completed * callback could be called more than once, in violation of its contract.) * If this signer has challenges to sign, begins signing on the new gnubby with * them. * @param {GnubbyDeviceId} gnubbyId The id of the gnubby to add. * @return {boolean} Whether the gnubby was added successfully. * @private */ MultipleGnubbySigner.prototype.addGnubby_ = function(gnubbyId) { var index = JSON.stringify(gnubbyId); if (this.gnubbies_.hasOwnProperty(index)) { // Can't add the same gnubby twice. return false; } var tracker = { index: index, errorStatus: 0, stillGoing: false, signer: null }; tracker.signer = new SingleGnubbySigner( gnubbyId, this.forEnroll_, this.signCompletedCallback_.bind(this, tracker), this.timer_.clone(), this.logMsgUrl_); this.gnubbies_[index] = tracker; this.gnubbies_[index].stillGoing = tracker.signer.doSign(this.challenges_); if (!this.gnubbies_[index].errorStatus) { this.gnubbies_[index].errorStatus = 0; } return true; }; /** * Called by a SingleGnubbySigner upon completion. * @param {GnubbyTracker} tracker The tracker object of the gnubby whose result * this is. * @param {SingleSignerResult} result The result of the sign operation. * @private */ MultipleGnubbySigner.prototype.signCompletedCallback_ = function(tracker, result) { console.log( UTIL_fmt((result.code ? 'failure.' : 'success!') + ' gnubby ' + tracker.index + ' got code ' + result.code.toString(16))); if (!tracker.stillGoing) { console.log(UTIL_fmt('gnubby ' + tracker.index + ' no longer running!')); // Shouldn't ever happen? Disregard. return; } tracker.stillGoing = false; tracker.errorStatus = result.code; var moreExpected = this.tallyCompletedGnubby_(); switch (result.code) { case DeviceStatusCodes.GONE_STATUS: // Squelch removed gnubbies: the caller can't act on them. But if this // was the last one, speed up reenumerating. if (!moreExpected) { this.maybeReEnumerateGnubbies_(true); } break; default: // Report any other results directly to the caller. this.notifyGnubbyComplete_(tracker, result, moreExpected); break; } if (!moreExpected && this.timer_.expired()) { this.timeout_(false); } }; /** * Counts another gnubby has having completed, and returns whether more results * are expected. * @return {boolean} Whether more gnubbies are still running. * @private */ MultipleGnubbySigner.prototype.tallyCompletedGnubby_ = function() { this.numComplete_++; return this.anyPending_(); }; /** * @return {boolean} Whether more gnubbies are still running. * @private */ MultipleGnubbySigner.prototype.anyPending_ = function() { return this.numComplete_ < Object.keys(this.gnubbies_).length; }; /** * Called upon timeout. * @param {boolean} anyPending Whether any gnubbies are awaiting results. * @private */ MultipleGnubbySigner.prototype.timeout_ = function(anyPending) { if (this.complete_) return; this.complete_ = true; // Defer notifying the caller that all are complete, in case the caller is // doing work in response to a gnubbyFound callback and has an inconsistent // view of the state of this signer. var self = this; window.setTimeout(function() { self.allCompleteCb_(anyPending); }, 0); }; /** * @param {GnubbyTracker} tracker The tracker object of the gnubby whose result * this is. * @param {SingleSignerResult} result Result object. * @param {boolean} moreExpected Whether more gnubbies may still produce an * outcome. * @private */ MultipleGnubbySigner.prototype.notifyGnubbyComplete_ = function(tracker, result, moreExpected) { console.log(UTIL_fmt('gnubby ' + tracker.index + ' complete (' + result.code.toString(16) + ')')); var signResult = { 'code': result.code, 'gnubby': result.gnubby, 'gnubbyId': tracker.signer.getDeviceId() }; if (result['challenge']) signResult['challenge'] = result['challenge']; if (result['info']) signResult['info'] = result['info']; this.gnubbyCompleteCb_(signResult, moreExpected); }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Implements a sign handler using USB gnubbies. */ 'use strict'; var CORRUPT_sign = false; /** * @param {!SignHelperRequest} request The sign request. * @constructor * @implements {RequestHandler} */ function UsbSignHandler(request) { /** @private {!SignHelperRequest} */ this.request_ = request; /** @private {boolean} */ this.notified_ = false; /** @private {boolean} */ this.anyGnubbiesFound_ = false; /** @private {!Array} */ this.notEnrolledGnubbies_ = []; } /** * Default timeout value in case the caller never provides a valid timeout. * @const */ UsbSignHandler.DEFAULT_TIMEOUT_MILLIS = 30 * 1000; /** * Attempts to run this handler's request. * @param {RequestHandlerCallback} cb Called with the result of the request and * an optional source for the sign result. * @return {boolean} whether this set of challenges was accepted. */ UsbSignHandler.prototype.run = function(cb) { if (this.cb_) { // Can only handle one request. return false; } /** @private {RequestHandlerCallback} */ this.cb_ = cb; if (!this.request_.signData || !this.request_.signData.length) { // Fail a sign request with an empty set of challenges. return false; } var timeoutMillis = this.request_.timeoutSeconds ? this.request_.timeoutSeconds * 1000 : UsbSignHandler.DEFAULT_TIMEOUT_MILLIS; /** @private {MultipleGnubbySigner} */ this.signer_ = new MultipleGnubbySigner( false /* forEnroll */, this.signerCompleted_.bind(this), this.signerFoundGnubby_.bind(this), timeoutMillis, this.request_.logMsgUrl); return this.signer_.doSign(this.request_.signData); }; /** * Called when a MultipleGnubbySigner completes. * @param {boolean} anyPending Whether any gnubbies are pending. * @private */ UsbSignHandler.prototype.signerCompleted_ = function(anyPending) { if (!this.anyGnubbiesFound_ || anyPending) { this.notifyError_(DeviceStatusCodes.TIMEOUT_STATUS); } else if (this.signerError_ !== undefined) { this.notifyError_(this.signerError_); } else { // Do nothing: signerFoundGnubby_ will have returned results from other // gnubbies. } }; /** * Called when a MultipleGnubbySigner finds a gnubby that has completed signing * its challenges. * @param {MultipleSignerResult} signResult Signer result object * @param {boolean} moreExpected Whether the signer expects to produce more * results. * @private */ UsbSignHandler.prototype.signerFoundGnubby_ = function(signResult, moreExpected) { this.anyGnubbiesFound_ = true; if (!signResult.code) { var gnubby = signResult['gnubby']; var challenge = signResult['challenge']; var info = new Uint8Array(signResult['info']); this.notifySuccess_(gnubby, challenge, info); } else if (signResult.code == DeviceStatusCodes.WRONG_DATA_STATUS) { var gnubby = signResult['gnubby']; this.notEnrolledGnubbies_.push(gnubby); this.sendBogusEnroll_(gnubby); } else if (!moreExpected) { // If the signer doesn't expect more results, return the error directly to // the caller. this.notifyError_(signResult.code); } else { // Record the last error, to report from the complete callback if no other // eligible gnubbies are found. /** @private {number} */ this.signerError_ = signResult.code; } }; /** @const */ UsbSignHandler.BOGUS_APP_ID_HASH = [ 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 ]; /** @const */ UsbSignHandler.BOGUS_CHALLENGE_V1 = [ 0x04, 0xA2, 0x24, 0x7D, 0x5C, 0x0B, 0x76, 0xF1, 0xDC, 0xCD, 0x44, 0xAF, 0x91, 0x9A, 0xA2, 0x3F, 0x3F, 0xBA, 0x65, 0x9F, 0x06, 0x78, 0x82, 0xFB, 0x93, 0x4B, 0xBF, 0x86, 0x55, 0x95, 0x66, 0x46, 0x76, 0x90, 0xDC, 0xE1, 0xE8, 0x6C, 0x86, 0x86, 0xC3, 0x03, 0x4E, 0x65, 0x52, 0x4C, 0x32, 0x6F, 0xB6, 0x44, 0x0D, 0x50, 0xF9, 0x16, 0xC0, 0xA3, 0xDA, 0x31, 0x4B, 0xD3, 0x3F, 0x94, 0xA5, 0xF1, 0xD3 ]; /** @const */ UsbSignHandler.BOGUS_CHALLENGE_V2 = [ 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42 ]; /** * Sends a bogus enroll command to the not-enrolled gnubby, to force the user * to tap the gnubby before revealing its state to the caller. * @param {Gnubby} gnubby The gnubby to "enroll" on. * @private */ UsbSignHandler.prototype.sendBogusEnroll_ = function(gnubby) { var self = this; gnubby.version(function(rc, opt_data) { if (rc) { self.notifyError_(rc); return; } var enrollChallenge; var version = UTIL_BytesToString(new Uint8Array(opt_data || [])); switch (version) { case Gnubby.U2F_V1: enrollChallenge = UsbSignHandler.BOGUS_CHALLENGE_V1; break; case Gnubby.U2F_V2: enrollChallenge = UsbSignHandler.BOGUS_CHALLENGE_V2; break; default: self.notifyError_(DeviceStatusCodes.INVALID_DATA_STATUS); } gnubby.enroll( /** @type {Array} */ (enrollChallenge), UsbSignHandler.BOGUS_APP_ID_HASH, self.enrollCallback_.bind(self, gnubby)); }); }; /** * Called with the result of the (bogus, tap capturing) enroll command. * @param {Gnubby} gnubby The gnubby "enrolled". * @param {number} code The result of the enroll command. * @param {ArrayBuffer=} infoArray Returned data. * @private */ UsbSignHandler.prototype.enrollCallback_ = function(gnubby, code, infoArray) { if (this.notified_) return; switch (code) { case DeviceStatusCodes.WAIT_TOUCH_STATUS: this.sendBogusEnroll_(gnubby); return; case DeviceStatusCodes.OK_STATUS: // Got a successful enroll => user tapped gnubby. // Send a WRONG_DATA_STATUS finally. (The gnubby is implicitly closed // by notifyError_.) this.notifyError_(DeviceStatusCodes.WRONG_DATA_STATUS); return; } }; /** * Reports the result of a successful sign operation. * @param {Gnubby} gnubby Gnubby instance * @param {SignHelperChallenge} challenge Challenge signed * @param {Uint8Array} info Result data * @private */ UsbSignHandler.prototype.notifySuccess_ = function(gnubby, challenge, info) { if (this.notified_) return; this.notified_ = true; gnubby.closeWhenIdle(); this.close(); if (CORRUPT_sign) { CORRUPT_sign = false; info[info.length - 1] = info[info.length - 1] ^ 0xff; } var responseData = { 'appIdHash': B64_encode(challenge['appIdHash']), 'challengeHash': B64_encode(challenge['challengeHash']), 'keyHandle': B64_encode(challenge['keyHandle']), 'signatureData': B64_encode(info) }; var reply = { 'type': 'sign_helper_reply', 'code': DeviceStatusCodes.OK_STATUS, 'responseData': responseData }; this.cb_(reply, 'USB'); }; /** * Reports error to the caller. * @param {number} code error to report * @private */ UsbSignHandler.prototype.notifyError_ = function(code) { if (this.notified_) return; this.notified_ = true; this.close(); var reply = { 'type': 'sign_helper_reply', 'code': code }; this.cb_(reply); }; /** * Closes the MultipleGnubbySigner, if any. */ UsbSignHandler.prototype.close = function() { while (this.notEnrolledGnubbies_.length != 0) { var gnubby = this.notEnrolledGnubbies_.shift(); gnubby.closeWhenIdle(); } if (this.signer_) { this.signer_.close(); this.signer_ = null; } }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Does common handling for requests coming from web pages and * routes them to the provided handler. */ /** * FIDO U2F Javascript API Version * @const * @type {number} */ var JS_API_VERSION = 1.1; /** * Gets the scheme + origin from a web url. * @param {string} url Input url * @return {?string} Scheme and origin part if url parses */ function getOriginFromUrl(url) { var re = new RegExp('^(https?://)[^/]*/?'); var originarray = re.exec(url); if (originarray == null) return originarray; var origin = originarray[0]; while (origin.charAt(origin.length - 1) == '/') { origin = origin.substring(0, origin.length - 1); } if (origin == 'http:' || origin == 'https:') return null; return origin; } /** * Returns whether the registered key appears to be valid. * @param {Object} registeredKey The registered key object. * @param {boolean} appIdRequired Whether the appId property is required on * each challenge. * @return {boolean} Whether the object appears valid. */ function isValidRegisteredKey(registeredKey, appIdRequired) { if (appIdRequired && !registeredKey.hasOwnProperty('appId')) { return false; } if (!registeredKey.hasOwnProperty('keyHandle')) return false; if (registeredKey['version']) { if (registeredKey['version'] != 'U2F_V1' && registeredKey['version'] != 'U2F_V2') { return false; } } return true; } /** * Returns whether the array of registered keys appears to be valid. * @param {Array} registeredKeys The array of registered keys. * @param {boolean} appIdRequired Whether the appId property is required on * each challenge. * @return {boolean} Whether the array appears valid. */ function isValidRegisteredKeyArray(registeredKeys, appIdRequired) { return registeredKeys.every(function(key) { return isValidRegisteredKey(key, appIdRequired); }); } /** * Gets the sign challenges from the request. The sign challenges may be the * U2F 1.0 variant, signRequests, or the U2F 1.1 version, registeredKeys. * @param {Object} request The request. * @return {!Array|undefined} The sign challenges, if found. */ function getSignChallenges(request) { if (!request) { return undefined; } var signChallenges; if (request.hasOwnProperty('signRequests')) { signChallenges = request['signRequests']; } else if (request.hasOwnProperty('registeredKeys')) { signChallenges = request['registeredKeys']; } return signChallenges; } /** * Returns whether the array of SignChallenges appears to be valid. * @param {Array} signChallenges The array of sign challenges. * @param {boolean} challengeValueRequired Whether each challenge object * requires a challenge value. * @param {boolean} appIdRequired Whether the appId property is required on * each challenge. * @return {boolean} Whether the array appears valid. */ function isValidSignChallengeArray(signChallenges, challengeValueRequired, appIdRequired) { for (var i = 0; i < signChallenges.length; i++) { var incomingChallenge = signChallenges[i]; if (challengeValueRequired && !incomingChallenge.hasOwnProperty('challenge')) return false; if (!isValidRegisteredKey(incomingChallenge, appIdRequired)) { return false; } } return true; } /** * @param {Object} request Request object * @param {MessageSender} sender Sender frame * @param {Function} sendResponse Response callback * @return {?Closeable} Optional handler object that should be closed when port * closes */ function handleWebPageRequest(request, sender, sendResponse) { switch (request.type) { case MessageTypes.U2F_REGISTER_REQUEST: return handleU2fEnrollRequest(sender, request, sendResponse); case MessageTypes.U2F_SIGN_REQUEST: return handleU2fSignRequest(sender, request, sendResponse); case MessageTypes.U2F_GET_API_VERSION_REQUEST: sendResponse( makeU2fGetApiVersionResponse(request, JS_API_VERSION, MessageTypes.U2F_GET_API_VERSION_RESPONSE)); return null; default: sendResponse( makeU2fErrorResponse(request, ErrorCodes.BAD_REQUEST, undefined, MessageTypes.U2F_REGISTER_RESPONSE)); return null; } } /** * Makes a response to a request. * @param {Object} request The request to make a response to. * @param {string} responseSuffix How to name the response's type. * @param {string=} opt_defaultType The default response type, if none is * present in the request. * @return {Object} The response object. */ function makeResponseForRequest(request, responseSuffix, opt_defaultType) { var type; if (request && request.type) { type = request.type.replace(/_request$/, responseSuffix); } else { type = opt_defaultType; } var reply = { 'type': type }; if (request && request.requestId) { reply.requestId = request.requestId; } return reply; } /** * Makes a response to a U2F request with an error code. * @param {Object} request The request to make a response to. * @param {ErrorCodes} code The error code to return. * @param {string=} opt_detail An error detail string. * @param {string=} opt_defaultType The default response type, if none is * present in the request. * @return {Object} The U2F error. */ function makeU2fErrorResponse(request, code, opt_detail, opt_defaultType) { var reply = makeResponseForRequest(request, '_response', opt_defaultType); var error = {'errorCode': code}; if (opt_detail) { error['errorMessage'] = opt_detail; } reply['responseData'] = error; return reply; } /** * Makes a success response to a web request with a responseData object. * @param {Object} request The request to make a response to. * @param {Object} responseData The response data. * @return {Object} The web error. */ function makeU2fSuccessResponse(request, responseData) { var reply = makeResponseForRequest(request, '_response'); reply['responseData'] = responseData; return reply; } /** * Maps a helper's error code from the DeviceStatusCodes namespace to a * U2fError. * @param {number} code Error code from DeviceStatusCodes namespace. * @return {U2fError} An error. */ function mapDeviceStatusCodeToU2fError(code) { switch (code) { case DeviceStatusCodes.WRONG_DATA_STATUS: return {errorCode: ErrorCodes.DEVICE_INELIGIBLE}; case DeviceStatusCodes.TIMEOUT_STATUS: case DeviceStatusCodes.WAIT_TOUCH_STATUS: return {errorCode: ErrorCodes.TIMEOUT}; default: var reportedError = { errorCode: ErrorCodes.OTHER_ERROR, errorMessage: 'device status code: ' + code.toString(16) }; return reportedError; } } /** * Sends a response, using the given sentinel to ensure at most one response is * sent. Also closes the closeable, if it's given. * @param {boolean} sentResponse Whether a response has already been sent. * @param {?Closeable} closeable A thing to close. * @param {*} response The response to send. * @param {Function} sendResponse A function to send the response. */ function sendResponseOnce(sentResponse, closeable, response, sendResponse) { if (closeable) { closeable.close(); } if (!sentResponse) { sentResponse = true; try { // If the page has gone away or the connection has otherwise gone, // sendResponse fails. sendResponse(response); } catch (exception) { console.warn('sendResponse failed: ' + exception); } } else { console.warn(UTIL_fmt('Tried to reply more than once! Juan, FIX ME')); } } /** * @param {!string} string Input string * @return {Array} SHA256 hash value of string. */ function sha256HashOfString(string) { var s = new SHA256(); s.update(UTIL_StringToBytes(string)); return s.digest(); } /** * Normalizes the TLS channel ID value: * 1. Converts semantically empty values (undefined, null, 0) to the empty * string. * 2. Converts valid JSON strings to a JS object. * 3. Otherwise, returns the input value unmodified. * @param {Object|string|undefined} opt_tlsChannelId TLS Channel id * @return {Object|string} The normalized TLS channel ID value. */ function tlsChannelIdValue(opt_tlsChannelId) { if (!opt_tlsChannelId) { // Case 1: Always set some value for TLS channel ID, even if it's the empty // string: this browser definitely supports them. return ''; } if (typeof opt_tlsChannelId === 'string') { try { var obj = JSON.parse(opt_tlsChannelId); if (!obj) { // Case 1: The string value 'null' parses as the Javascript object null, // so return an empty string: the browser definitely supports TLS // channel id. return ''; } // Case 2: return the value as a JS object. return /** @type {Object} */ (obj); } catch (e) { console.warn('Unparseable TLS channel ID value ' + opt_tlsChannelId); // Case 3: return the value unmodified. } } return opt_tlsChannelId; } /** * Creates a browser data object with the given values. * @param {!string} type A string representing the "type" of this browser data * object. * @param {!string} serverChallenge The server's challenge, as a base64- * encoded string. * @param {!string} origin The server's origin, as seen by the browser. * @param {Object|string|undefined} opt_tlsChannelId TLS Channel Id * @return {string} A string representation of the browser data object. */ function makeBrowserData(type, serverChallenge, origin, opt_tlsChannelId) { var browserData = { 'typ' : type, 'challenge' : serverChallenge, 'origin' : origin }; if (BROWSER_SUPPORTS_TLS_CHANNEL_ID) { browserData['cid_pubkey'] = tlsChannelIdValue(opt_tlsChannelId); } return JSON.stringify(browserData); } /** * Creates a browser data object for an enroll request with the given values. * @param {!string} serverChallenge The server's challenge, as a base64- * encoded string. * @param {!string} origin The server's origin, as seen by the browser. * @param {Object|string|undefined} opt_tlsChannelId TLS Channel Id * @return {string} A string representation of the browser data object. */ function makeEnrollBrowserData(serverChallenge, origin, opt_tlsChannelId) { return makeBrowserData( 'navigator.id.finishEnrollment', serverChallenge, origin, opt_tlsChannelId); } /** * Creates a browser data object for a sign request with the given values. * @param {!string} serverChallenge The server's challenge, as a base64- * encoded string. * @param {!string} origin The server's origin, as seen by the browser. * @param {Object|string|undefined} opt_tlsChannelId TLS Channel Id * @return {string} A string representation of the browser data object. */ function makeSignBrowserData(serverChallenge, origin, opt_tlsChannelId) { return makeBrowserData( 'navigator.id.getAssertion', serverChallenge, origin, opt_tlsChannelId); } /** * Makes a response to a U2F request with an error code. * @param {Object} request The request to make a response to. * @param {number=} version The JS API version to return. * @param {string=} opt_defaultType The default response type, if none is * present in the request. * @return {Object} The GetJsApiVersionResponse. */ function makeU2fGetApiVersionResponse(request, version, opt_defaultType) { var reply = makeResponseForRequest(request, '_response', opt_defaultType); var data = {'js_api_version': version}; reply['responseData'] = data; return reply; } /** * Encodes the sign data as an array of sign helper challenges. * @param {Array} signChallenges The sign challenges to encode. * @param {string|undefined} opt_defaultChallenge A default sign challenge * value, if a request does not provide one. * @param {string=} opt_defaultAppId The app id to use for each challenge, if * the challenge contains none. * @param {function(string, string): string=} opt_challengeHashFunction * A function that produces, from a key handle and a raw challenge, a hash * of the raw challenge. If none is provided, a default hash function is * used. * @return {!Array} The sign challenges, encoded. */ function encodeSignChallenges(signChallenges, opt_defaultChallenge, opt_defaultAppId, opt_challengeHashFunction) { function encodedSha256(keyHandle, challenge) { return B64_encode(sha256HashOfString(challenge)); } var challengeHashFn = opt_challengeHashFunction || encodedSha256; var encodedSignChallenges = []; if (signChallenges) { for (var i = 0; i < signChallenges.length; i++) { var challenge = signChallenges[i]; var keyHandle = challenge['keyHandle']; var challengeValue; if (challenge.hasOwnProperty('challenge')) { challengeValue = challenge['challenge']; } else { challengeValue = opt_defaultChallenge; } var challengeHash = challengeHashFn(keyHandle, challengeValue); var appId; if (challenge.hasOwnProperty('appId')) { appId = challenge['appId']; } else { appId = opt_defaultAppId; } var encodedChallenge = { 'challengeHash': challengeHash, 'appIdHash': B64_encode(sha256HashOfString(appId)), 'keyHandle': keyHandle, 'version': (challenge['version'] || 'U2F_V1') }; encodedSignChallenges.push(encodedChallenge); } } return encodedSignChallenges; } /** * Makes a sign helper request from an array of challenges. * @param {Array} challenges The sign challenges. * @param {number=} opt_timeoutSeconds Timeout value. * @param {string=} opt_logMsgUrl URL to log to. * @return {SignHelperRequest} The sign helper request. */ function makeSignHelperRequest(challenges, opt_timeoutSeconds, opt_logMsgUrl) { var request = { 'type': 'sign_helper_request', 'signData': challenges, 'timeout': opt_timeoutSeconds || 0, 'timeoutSeconds': opt_timeoutSeconds || 0 }; if (opt_logMsgUrl !== undefined) { request.logMsgUrl = opt_logMsgUrl; } return request; } // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Implements a check whether an app id lists an origin. */ 'use strict'; /** * Parses the text as JSON and returns it as an array of strings. * @param {string} text Input JSON * @return {!Array} Array of origins */ function getOriginsFromJson(text) { try { var urls, i; var appIdData = JSON.parse(text); if (Array.isArray(appIdData)) { // Older format where it is a simple list of facets urls = appIdData; } else { var trustedFacets = appIdData['trustedFacets']; if (trustedFacets) { var versionBlock; for (i = 0; versionBlock = trustedFacets[i]; i++) { if (versionBlock['version'] && versionBlock['version']['major'] == 1 && versionBlock['version']['minor'] == 0) { urls = versionBlock['ids']; break; } } } if (typeof urls == 'undefined') { throw Error('Could not find trustedFacets for version 1.0'); } } var origins = {}; var url; for (i = 0; url = urls[i]; i++) { var origin = getOriginFromUrl(url); if (origin) { origins[origin] = origin; } } return Object.keys(origins); } catch (e) { console.error(UTIL_fmt('could not parse ' + text)); return []; } } /** * Retrieves a set of distinct app ids from the sign challenges. * @param {Array=} signChallenges Input sign challenges. * @return {Array} array of distinct app ids. */ function getDistinctAppIds(signChallenges) { if (!signChallenges) { return []; } var appIds = {}; for (var i = 0, request; request = signChallenges[i]; i++) { var appId = request['appId']; if (appId) { appIds[appId] = appId; } } return Object.keys(appIds); } /** * An object that checks one or more appIds' contents against an origin. * @interface */ function AppIdChecker() {} /** * Checks whether the given origin is allowed by all of the given appIds. * @param {!Countdown} timer A timer by which to resolve all provided app ids. * @param {string} origin The origin to check. * @param {!Array} appIds The app ids to check. * @param {boolean} allowHttp Whether to allow http:// URLs. * @param {string=} opt_logMsgUrl A log message URL. * @return {Promise} A promise for the result of the check */ AppIdChecker.prototype.checkAppIds = function(timer, origin, appIds, allowHttp, opt_logMsgUrl) {}; /** * An interface to create an AppIdChecker. * @interface */ function AppIdCheckerFactory() {} /** * @return {!AppIdChecker} A new AppIdChecker. */ AppIdCheckerFactory.prototype.create = function() {}; /** * Provides an object to track checking a list of appIds. * @param {!TextFetcher} fetcher A URL fetcher. * @constructor * @implements AppIdChecker */ function XhrAppIdChecker(fetcher) { /** @private {!TextFetcher} */ this.fetcher_ = fetcher; } /** * Checks whether all the app ids provided can be asserted by the given origin. * @param {!Countdown} timer A timer by which to resolve all provided app ids. * @param {string} origin The origin to check. * @param {!Array} appIds The app ids to check. * @param {boolean} allowHttp Whether to allow http:// URLs. * @param {string=} opt_logMsgUrl A log message URL. * @return {Promise} A promise for the result of the check */ XhrAppIdChecker.prototype.checkAppIds = function(timer, origin, appIds, allowHttp, opt_logMsgUrl) { if (this.timer_) { // Can't use the same object to check appIds more than once. return Promise.resolve(false); } /** @private {!Countdown} */ this.timer_ = timer; /** @private {string} */ this.origin_ = origin; var appIdsMap = {}; if (appIds) { for (var i = 0; i < appIds.length; i++) { appIdsMap[appIds[i]] = appIds[i]; } } /** @private {Array} */ this.distinctAppIds_ = Object.keys(appIdsMap); /** @private {boolean} */ this.allowHttp_ = allowHttp; /** @private {string|undefined} */ this.logMsgUrl_ = opt_logMsgUrl; if (!this.distinctAppIds_.length) return Promise.resolve(false); if (this.allAppIdsEqualOrigin_()) { // Trivially allowed. return Promise.resolve(true); } else { var self = this; // Begin checking remaining app ids. var appIdChecks = self.distinctAppIds_.map(self.checkAppId_.bind(self)); return Promise.all(appIdChecks).then(function(results) { return results.every(function(result) { return result; }); }); } }; /** * Checks if a single appId can be asserted by the given origin. * @param {string} appId The appId to check * @return {Promise} A promise for the result of the check * @private */ XhrAppIdChecker.prototype.checkAppId_ = function(appId) { if (appId == this.origin_) { // Trivially allowed return Promise.resolve(true); } var p = this.fetchAllowedOriginsForAppId_(appId); var self = this; return p.then(function(allowedOrigins) { if (allowedOrigins.indexOf(self.origin_) == -1) { console.warn(UTIL_fmt('Origin ' + self.origin_ + ' not allowed by app id ' + appId)); return false; } return true; }); }; /** * @return {boolean} Whether all the app ids being checked are equal to the * calling origin. * @private */ XhrAppIdChecker.prototype.allAppIdsEqualOrigin_ = function() { var self = this; return this.distinctAppIds_.every(function(appId) { return appId == self.origin_; }); }; /** * Fetches the allowed origins for an appId. * @param {string} appId Application id * @return {Promise>} A promise for a list of allowed origins * for appId * @private */ XhrAppIdChecker.prototype.fetchAllowedOriginsForAppId_ = function(appId) { if (!appId) { return Promise.resolve([]); } if (appId.indexOf('http://') == 0 && !this.allowHttp_) { console.log(UTIL_fmt('http app ids disallowed, ' + appId + ' requested')); return Promise.resolve([]); } var origin = getOriginFromUrl(appId); if (!origin) { return Promise.resolve([]); } var p = this.fetcher_.fetch(appId); var self = this; return p.then(getOriginsFromJson, function(rc_) { var rc = /** @type {number} */(rc_); console.log(UTIL_fmt('fetching ' + appId + ' failed: ' + rc)); if (!(rc >= 400 && rc < 500) && !self.timer_.expired()) { // Retry return self.fetchAllowedOriginsForAppId_(appId); } return []; }); }; /** * A factory to create an XhrAppIdChecker. * @implements AppIdCheckerFactory * @param {!TextFetcher} fetcher * @constructor */ function XhrAppIdCheckerFactory(fetcher) { /** @private {!TextFetcher} */ this.fetcher_ = fetcher; } /** * @return {!AppIdChecker} A new AppIdChecker. */ XhrAppIdCheckerFactory.prototype.create = function() { return new XhrAppIdChecker(this.fetcher_); }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Implements a helper using USB gnubbies. */ 'use strict'; /** * @constructor * @extends {GenericRequestHelper} */ function UsbHelper() { GenericRequestHelper.apply(this, arguments); var self = this; this.registerHandlerFactory('enroll_helper_request', function(request) { return new UsbEnrollHandler(/** @type {EnrollHelperRequest} */ (request)); }); this.registerHandlerFactory('sign_helper_request', function(request) { return new UsbSignHandler(/** @type {SignHelperRequest} */ (request)); }); } inherits(UsbHelper, GenericRequestHelper); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Implements a simple XmlHttpRequest-based text document * fetcher. * */ 'use strict'; /** * A fetcher of text files. * @interface */ function TextFetcher() {} /** * @param {string} url The URL to fetch. * @param {string?} opt_method The HTTP method to use (default GET) * @param {string?} opt_body The request body * @return {!Promise} A promise for the fetched text. In case of an * error, this promise is rejected with an HTTP status code. */ TextFetcher.prototype.fetch = function(url, opt_method, opt_body) {}; /** * @constructor * @implements {TextFetcher} */ function XhrTextFetcher() { } /** * @param {string} url The URL to fetch. * @param {string?} opt_method The HTTP method to use (default GET) * @param {string?} opt_body The request body * @return {!Promise} A promise for the fetched text. In case of an * error, this promise is rejected with an HTTP status code. */ XhrTextFetcher.prototype.fetch = function(url, opt_method, opt_body) { return new Promise(function(resolve, reject) { var xhr = new XMLHttpRequest(); var method = opt_method || 'GET'; xhr.open(method, url, true); xhr.onloadend = function() { if (xhr.status != 200) { reject(xhr.status); return; } resolve(xhr.responseText); }; xhr.onerror = function() { // Treat any network-level errors as though the page didn't exist. reject(404); }; if (opt_body) xhr.send(opt_body); else xhr.send(); }); }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Provides a "bottom half" helper to assist with raw requests. * This fills the same role as the Authenticator-Specific Module component of * U2F documents, although the API is different. */ 'use strict'; /** * @typedef {{ * type: string, * timeout: number * }} */ var HelperRequest; /** * @typedef {{ * type: string, * code: (number|undefined) * }} */ var HelperReply; /** * A helper to process requests. * @interface */ function RequestHelper() {} /** * Gets a handler for a request. * @param {HelperRequest} request The request to handle. * @return {RequestHandler} A handler for the request. */ RequestHelper.prototype.getHandler = function(request) {}; /** * A handler to track an outstanding request. * @extends {Closeable} * @interface */ function RequestHandler() {} /** @typedef {function(HelperReply, string=)} */ var RequestHandlerCallback; /** * @param {RequestHandlerCallback} cb Called with the result of the request, * and an optional source for the result. * @return {boolean} Whether this handler could be run. */ RequestHandler.prototype.run = function(cb) {}; /** Closes this handler. */ RequestHandler.prototype.close = function() {}; /** * Makes a response to a helper request with an error code. * @param {HelperRequest} request The request to make a response to. * @param {DeviceStatusCodes} code The error code to return. * @param {string=} opt_defaultType The default response type, if none is * present in the request. * @return {HelperReply} The helper error response. */ function makeHelperErrorResponse(request, code, opt_defaultType) { var type; if (request && request.type) { type = request.type.replace(/_request$/, '_reply'); } else { type = opt_defaultType || 'unknown_type_reply'; } var reply = { 'type': type, 'code': /** @type {number} */ (code) }; return reply; } // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview U2F message types. */ 'use strict'; /** * Message types for messsages to/from the extension * @const * @enum {string} */ var MessageTypes = { U2F_REGISTER_REQUEST: 'u2f_register_request', U2F_SIGN_REQUEST: 'u2f_sign_request', U2F_REGISTER_RESPONSE: 'u2f_register_response', U2F_SIGN_RESPONSE: 'u2f_sign_response', U2F_GET_API_VERSION_REQUEST: 'u2f_get_api_version_request', U2F_GET_API_VERSION_RESPONSE: 'u2f_get_api_version_response' }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Provides a partial copy of goog.inherits, so inheritance works * even in the absence of Closure. */ 'use strict'; // A partial copy of goog.inherits, so inheritance works even in the absence of // Closure. function inherits(childCtor, parentCtor) { /** @constructor */ function tempCtor() { } tempCtor.prototype = parentCtor.prototype; childCtor.prototype = new tempCtor; childCtor.prototype.constructor = childCtor; } // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Interface for representing a low-level gnubby device. */ 'use strict'; /** * Low level gnubby 'driver'. One per physical USB device. * @interface */ function GnubbyDevice() {} // Commands of the USB interface. /** Echo data through local processor only */ GnubbyDevice.CMD_PING = 0x81; /** Perform reset action and read ATR string */ GnubbyDevice.CMD_ATR = 0x82; /** Send raw APDU */ GnubbyDevice.CMD_APDU = 0x83; /** Send lock channel command */ GnubbyDevice.CMD_LOCK = 0x84; /** Obtain system information record */ GnubbyDevice.CMD_SYSINFO = 0x85; /** Obtain an unused channel ID */ GnubbyDevice.CMD_INIT = 0x86; /** Control prompt flashing */ GnubbyDevice.CMD_PROMPT = 0x87; /** Send device identification wink */ GnubbyDevice.CMD_WINK = 0x88; /** USB test */ GnubbyDevice.CMD_USB_TEST = 0xb9; /** Device Firmware Upgrade */ GnubbyDevice.CMD_DFU = 0xba; /** Protocol resync command */ GnubbyDevice.CMD_SYNC = 0xbc; /** Error response */ GnubbyDevice.CMD_ERROR = 0xbf; // Low-level error codes. /** No error */ GnubbyDevice.OK = 0; /** Invalid command */ GnubbyDevice.INVALID_CMD = 1; /** Invalid parameter */ GnubbyDevice.INVALID_PAR = 2; /** Invalid message length */ GnubbyDevice.INVALID_LEN = 3; /** Invalid message sequencing */ GnubbyDevice.INVALID_SEQ = 4; /** Message has timed out */ GnubbyDevice.TIMEOUT = 5; /** Channel is busy */ GnubbyDevice.BUSY = 6; /** Access denied */ GnubbyDevice.ACCESS_DENIED = 7; /** Device is gone */ GnubbyDevice.GONE = 8; /** Verification error */ GnubbyDevice.VERIFY_ERROR = 9; /** Command requires channel lock */ GnubbyDevice.LOCK_REQUIRED = 10; /** Sync error */ GnubbyDevice.SYNC_FAIL = 11; /** Other unspecified error */ GnubbyDevice.OTHER = 127; // Remote helper errors. /** Not a remote helper */ GnubbyDevice.NOTREMOTE = 263; /** Could not reach remote endpoint */ GnubbyDevice.COULDNOTDIAL = 264; // chrome.usb-related errors. /** No device */ GnubbyDevice.NODEVICE = 512; /** More than one device */ GnubbyDevice.TOOMANY = 513; /** Permission denied */ GnubbyDevice.NOPERMISSION = 666; /** Destroys this low-level device instance. */ GnubbyDevice.prototype.destroy = function() {}; /** * Register a client for this gnubby. * @param {*} who The client. */ GnubbyDevice.prototype.registerClient = function(who) {}; /** * De-register a client. * @param {*} who The client. * @return {number} The number of remaining listeners for this device, or -1 * if this had no clients to start with. */ GnubbyDevice.prototype.deregisterClient = function(who) {}; /** * @param {*} who The client. * @return {boolean} Whether this device has who as a client. */ GnubbyDevice.prototype.hasClient = function(who) {}; /** * Queue command to be sent. * If queue was empty, initiate the write. * @param {number} cid The client's channel ID. * @param {number} cmd The command to send. * @param {ArrayBuffer|Uint8Array} data Command data */ GnubbyDevice.prototype.queueCommand = function(cid, cmd, data) {}; /** * @typedef {{ * vendorId: number, * productId: number * }} */ var UsbDeviceSpec; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Implements a "generic" RequestHelper that provides a default * response to unknown requests, and supports registering handlers for known * requests. */ 'use strict'; /** * @typedef {function(HelperRequest): RequestHandler} */ var RequestHandlerFactory; /** * Implements a "generic" RequestHelper that provides a default * response to unknown requests, and supports registering handlers for known * @constructor * @implements {RequestHelper} */ function GenericRequestHelper() { /** @private {Object} */ this.handlerFactories_ = {}; } /** * Gets a handler for a request. * @param {HelperRequest} request The request to handle. * @return {RequestHandler} A handler for the request. */ GenericRequestHelper.prototype.getHandler = function(request) { if (this.handlerFactories_.hasOwnProperty(request.type)) { return this.handlerFactories_[request.type](request); } return null; }; /** * Registers a handler factory for a given type. * @param {string} type The request type. * @param {RequestHandlerFactory} factory A factory that can produce a handler * for a request of a given type. */ GenericRequestHelper.prototype.registerHandlerFactory = function(type, factory) { this.handlerFactories_[type] = factory; }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Class providing common dependencies for the extension's * top half. */ 'use strict'; /** * @param {!AppIdCheckerFactory} appIdCheckerFactory An appId checker factory. * @param {!ApprovedOrigins} approvedOrigins An origin approval implementation. * @param {!CountdownFactory} countdownFactory A countdown timer factory. * @param {!OriginChecker} originChecker An origin checker. * @param {!RequestHelper} requestHelper A request helper. * @param {!SystemTimer} sysTimer A system timer implementation. * @param {!TextFetcher} textFetcher A text fetcher. * @constructor */ function FactoryRegistry(appIdCheckerFactory, approvedOrigins, countdownFactory, originChecker, requestHelper, sysTimer, textFetcher) { /** @private {!AppIdCheckerFactory} */ this.appIdCheckerFactory_ = appIdCheckerFactory; /** @private {!ApprovedOrigins} */ this.approvedOrigins_ = approvedOrigins; /** @private {!CountdownFactory} */ this.countdownFactory_ = countdownFactory; /** @private {!OriginChecker} */ this.originChecker_ = originChecker; /** @private {!RequestHelper} */ this.requestHelper_ = requestHelper; /** @private {!SystemTimer} */ this.sysTimer_ = sysTimer; /** @private {!TextFetcher} */ this.textFetcher_ = textFetcher; } /** @return {!AppIdCheckerFactory} An appId checker factory. */ FactoryRegistry.prototype.getAppIdCheckerFactory = function() { return this.appIdCheckerFactory_; }; /** @return {!ApprovedOrigins} An origin approval implementation. */ FactoryRegistry.prototype.getApprovedOrigins = function() { return this.approvedOrigins_; }; /** @return {!CountdownFactory} A countdown factory. */ FactoryRegistry.prototype.getCountdownFactory = function() { return this.countdownFactory_; }; /** @return {!OriginChecker} An origin checker. */ FactoryRegistry.prototype.getOriginChecker = function() { return this.originChecker_; }; /** @return {!RequestHelper} A request helper. */ FactoryRegistry.prototype.getRequestHelper = function() { return this.requestHelper_; }; /** @return {!SystemTimer} A system timer implementation. */ FactoryRegistry.prototype.getSystemTimer = function() { return this.sysTimer_; }; /** @return {!TextFetcher} A text fetcher. */ FactoryRegistry.prototype.getTextFetcher = function() { return this.textFetcher_; }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Errors reported by top-level request handlers. */ 'use strict'; /** * Response status codes * @const * @enum {number} */ var ErrorCodes = { 'OK': 0, 'OTHER_ERROR': 1, 'BAD_REQUEST': 2, 'CONFIGURATION_UNSUPPORTED': 3, 'DEVICE_INELIGIBLE': 4, 'TIMEOUT': 5 }; /** * An error object for responses * @typedef {{ * errorCode: ErrorCodes, * errorMessage: (?string|undefined) * }} */ var U2fError; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Class providing common dependencies for the extension's * bottom half. */ 'use strict'; /** * @param {!GnubbyFactory} gnubbyFactory A Gnubby factory. * @param {!CountdownFactory} countdownFactory A countdown timer factory. * @param {!IndividualAttestation} individualAttestation An individual * attestation implementation. * @constructor */ function DeviceFactoryRegistry(gnubbyFactory, countdownFactory, individualAttestation) { /** @private {!GnubbyFactory} */ this.gnubbyFactory_ = gnubbyFactory; /** @private {!CountdownFactory} */ this.countdownFactory_ = countdownFactory; /** @private {!IndividualAttestation} */ this.individualAttestation_ = individualAttestation; } /** @return {!GnubbyFactory} A Gnubby factory. */ DeviceFactoryRegistry.prototype.getGnubbyFactory = function() { return this.gnubbyFactory_; }; /** @return {!CountdownFactory} A countdown factory. */ DeviceFactoryRegistry.prototype.getCountdownFactory = function() { return this.countdownFactory_; }; /** @return {!IndividualAttestation} An individual attestation implementation. */ DeviceFactoryRegistry.prototype.getIndividualAttestation = function() { return this.individualAttestation_; }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Implements a check whether an origin is allowed to assert an * app id. * */ 'use strict'; /** * Implements half of the app id policy: whether an origin is allowed to claim * an app id. For checking whether the app id also lists the origin, * @see AppIdChecker. * @interface */ function OriginChecker() {} /** * Checks whether the origin is allowed to claim the app ids. * @param {string} origin The origin claiming the app id. * @param {!Array} appIds The app ids being claimed. * @return {Promise} A promise for the result of the check. */ OriginChecker.prototype.canClaimAppIds = function(origin, appIds) {}; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Provides an interface to determine whether to request the * individual attestation certificate during enrollment. */ 'use strict'; /** * Interface to determine whether to request the individual attestation * certificate during enrollment. * @interface */ function IndividualAttestation() {} /** * @param {string} appIdHash The app id hash. * @return {boolean} Whether to request the individual attestation certificate * for this app id. */ IndividualAttestation.prototype.requestIndividualAttestation = function(appIdHash) {}; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Provides a Google corp implementation of IndividualAttestation. */ 'use strict'; /** * Google corp implementation of IndividualAttestation that requests * individual certificates for corp accounts. * @constructor * @implements IndividualAttestation */ function GoogleCorpIndividualAttestation() {} /** * @param {string} appIdHash The app id hash. * @return {boolean} Whether to request the individual attestation certificate * for this app id. */ GoogleCorpIndividualAttestation.prototype.requestIndividualAttestation = function(appIdHash) { return appIdHash == GoogleCorpIndividualAttestation.GOOGLE_CORP_APP_ID_HASH; }; /** * App ID used by Google employee accounts. * @const */ GoogleCorpIndividualAttestation.GOOGLE_CORP_APP_ID = 'https://www.gstatic.com/securitykey/a/google.com/origins.json'; /** * Hash of the app ID used by Google employee accounts. * @const */ GoogleCorpIndividualAttestation.GOOGLE_CORP_APP_ID_HASH = B64_encode(sha256HashOfString( GoogleCorpIndividualAttestation.GOOGLE_CORP_APP_ID)); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Provides an interface to check whether the user has approved * an origin to use security keys. * */ 'use strict'; /** * Allows the caller to check whether the user has approved the use of * security keys from an origin. * @interface */ function ApprovedOrigins() {} /** * Checks whether the origin is approved to use security keys. (If not, an * approval prompt may be shown.) * @param {string} origin The origin to approve. * @param {number=} opt_tabId A tab id to display approval prompt in, if * necessary. * @return {Promise} A promise for the result of the check. */ ApprovedOrigins.prototype.isApprovedOrigin = function(origin, opt_tabId) {}; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Provides a representation of a web request sender, and * utility functions for creating them. */ 'use strict'; /** * @typedef {{ * origin: string, * tlsChannelId: (string|undefined), * tabId: (number|undefined) * }} */ var WebRequestSender; /** * Creates an object representing the sender's origin, and, if available, * tab. * @param {MessageSender} messageSender The message sender. * @return {?WebRequestSender} The sender's origin and tab, or null if the * sender is invalid. */ function createSenderFromMessageSender(messageSender) { var origin = getOriginFromUrl(/** @type {string} */ (messageSender.url)); if (!origin) { return null; } var sender = { origin: origin }; if (messageSender.tlsChannelId) { sender.tlsChannelId = messageSender.tlsChannelId; } if (messageSender.tab) { sender.tabId = messageSender.tab.id; } return sender; } /** * Checks whether the given tab could have sent a message from the given * origin. * @param {Tab} tab The tab to match * @param {string} origin The origin to check. * @return {Promise} A promise resolved with the tab id if it the tab could, * have sent the request, and rejected if it can't. */ function tabMatchesOrigin(tab, origin) { // If the tab's origin matches, trust that the request came from this tab. if (getOriginFromUrl(tab.url) == origin) { return Promise.resolve(tab.id); } return Promise.reject(false); } /** * Attempts to ensure that the tabId of the sender is set, using chrome.tabs * when available. * @param {WebRequestSender} sender The request sender. * @return {Promise} A promise resolved once the tabId retrieval is done. * The promise is rejected if the tabId is untrustworthy, e.g. if the * user rapidly switched tabs. */ function getTabIdWhenPossible(sender) { if (sender.tabId) { // Already got it? Done. return Promise.resolve(true); } else if (!chrome.tabs) { // Can't get it? Done. (This happens to packaged apps, which can't access // chrome.tabs.) return Promise.resolve(true); } else { return new Promise(function(resolve, reject) { chrome.tabs.query({active: true, lastFocusedWindow: true}, function(tabs) { if (!tabs.length) { // Safety check. reject(false); return; } var tab = tabs[0]; tabMatchesOrigin(tab, sender.origin).then(function(tabId) { sender.tabId = tabId; resolve(true); }, function() { // Didn't match? Check if the debugger is open. if (tab.url.indexOf('chrome-devtools://') != 0) { reject(false); return; } // Debugger active: find first tab with the sender's origin. chrome.tabs.query({active: true}, function(tabs) { if (!tabs.length) { // Safety check. reject(false); return; } var numRejected = 0; for (var i = 0; i < tabs.length; i++) { tab = tabs[i]; tabMatchesOrigin(tab, sender.origin).then(function(tabId) { sender.tabId = tabId; resolve(true); }, function() { if (++numRejected >= tabs.length) { // None matches: reject. reject(false); } }); } }); }); }); }); } } /** * Checks whether the given tab is in the foreground, i.e. is the active tab * of the focused window. * @param {number} tabId The tab id to check. * @return {Promise} A promise for the result of the check. */ function tabInForeground(tabId) { return new Promise(function(resolve, reject) { if (!chrome.tabs || !chrome.tabs.get) { reject(); return; } if (!chrome.windows || !chrome.windows.get) { reject(); return; } chrome.tabs.get(tabId, function(tab) { if (chrome.runtime.lastError) { resolve(false); return; } if (!tab.active) { resolve(false); return; } chrome.windows.get(tab.windowId, function(aWindow) { resolve(aWindow && aWindow.focused); }); }); }); } // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Provides an implementation of the SystemTimer interface based * on window's timer methods. */ 'use strict'; /** * Creates an implementation of the SystemTimer interface based on window's * timer methods. * @constructor * @implements {SystemTimer} */ function WindowTimer() { } /** * Sets a single-shot timer. * @param {function()} func Called back when the timer expires. * @param {number} timeoutMillis How long until the timer fires, in * milliseconds. * @return {number} A timeout ID, which can be used to cancel the timer. */ WindowTimer.prototype.setTimeout = function(func, timeoutMillis) { return window.setTimeout(func, timeoutMillis); }; /** * Clears a previously set timer. * @param {number} timeoutId The ID of the timer to clear. */ WindowTimer.prototype.clearTimeout = function(timeoutId) { window.clearTimeout(timeoutId); }; /** * Sets a repeating interval timer. * @param {function()} func Called back each time the timer fires. * @param {number} timeoutMillis How long until the timer fires, in * milliseconds. * @return {number} A timeout ID, which can be used to cancel the timer. */ WindowTimer.prototype.setInterval = function(func, timeoutMillis) { return window.setInterval(func, timeoutMillis); }; /** * Clears a previously set interval timer. * @param {number} timeoutId The ID of the timer to clear. */ WindowTimer.prototype.clearInterval = function(timeoutId) { window.clearInterval(timeoutId); }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Provides a watchdog around a collection of callback functions. */ 'use strict'; /** * Creates a watchdog around a collection of callback functions, * ensuring at least one of them is called before the timeout expires. * If a timeout function is provided, calls the timeout function upon timeout * expiration if none of the callback functions has been called. * @param {number} timeoutValueSeconds Timeout value, in seconds. * @param {function()=} opt_timeoutCb Callback function to call on timeout. * @constructor * @implements {Closeable} */ function WatchdogRequestHandler(timeoutValueSeconds, opt_timeoutCb) { /** @private {number} */ this.timeoutValueSeconds_ = timeoutValueSeconds; /** @private {function()|undefined} */ this.timeoutCb_ = opt_timeoutCb; /** @private {boolean} */ this.calledBack_ = false; /** @private {Countdown} */ this.timer_ = FACTORY_REGISTRY.getCountdownFactory().createTimer( this.timeoutValueSeconds_ * 1000, this.timeout_.bind(this)); /** @private {Closeable|undefined} */ this.closeable_ = undefined; /** @private {boolean} */ this.closed_ = false; } /** * Wraps a callback function, such that the fact that the callback function * was or was not called gets tracked by this watchdog object. * @param {function(...?)} cb The callback function to wrap. * @return {function(...?)} A wrapped callback function. */ WatchdogRequestHandler.prototype.wrapCallback = function(cb) { return this.wrappedCallback_.bind(this, cb); }; /** Closes this watchdog. */ WatchdogRequestHandler.prototype.close = function() { this.closed_ = true; this.timer_.clearTimeout(); if (this.closeable_) { this.closeable_.close(); this.closeable_ = undefined; } }; /** * Sets this watchdog's closeable. * @param {!Closeable} closeable The closeable. */ WatchdogRequestHandler.prototype.setCloseable = function(closeable) { this.closeable_ = closeable; }; /** * Called back when the watchdog expires. * @private */ WatchdogRequestHandler.prototype.timeout_ = function() { if (!this.calledBack_ && !this.closed_) { var logMsg = 'Not called back within ' + this.timeoutValueSeconds_ + ' second timeout'; if (this.timeoutCb_) { logMsg += ', calling default callback'; console.warn(UTIL_fmt(logMsg)); this.timeoutCb_(); } else { console.warn(UTIL_fmt(logMsg)); } } }; /** * Wrapped callback function. * @param {function(...?)} cb The callback function to call. * @param {...?} var_args The callback function's arguments. * @private */ WatchdogRequestHandler.prototype.wrappedCallback_ = function(cb, var_args) { if (!this.closed_) { this.calledBack_ = true; this.timer_.clearTimeout(); var originalArgs = Array.prototype.slice.call(arguments, 1); cb.apply(null, originalArgs); } }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Logging related utility functions. */ /** Posts the log message to the log url. * @param {string} logMsg the log message to post. * @param {string=} opt_logMsgUrl the url to post log messages to. */ function logMessage(logMsg, opt_logMsgUrl) { console.log(UTIL_fmt('logMessage("' + logMsg + '")')); if (!opt_logMsgUrl) { return; } var audio = new Audio(); audio.src = opt_logMsgUrl + logMsg; } // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Provides an implementation of approved origins that relies * on the chrome.cryptotokenPrivate.requestPermission API. * (and only) allows google.com to use security keys. * */ 'use strict'; /** * Allows the caller to check whether the user has approved the use of * security keys from an origin. * @constructor * @implements {ApprovedOrigins} */ function CryptoTokenApprovedOrigin() {} /** * Checks whether the origin is approved to use security keys. (If not, an * approval prompt may be shown.) * @param {string} origin The origin to approve. * @param {number=} opt_tabId A tab id to display approval prompt in. * For this implementation, the tabId is always necessary, even though * the type allows undefined. * @return {Promise} A promise for the result of the check. */ CryptoTokenApprovedOrigin.prototype.isApprovedOrigin = function(origin, opt_tabId) { return new Promise(function(resolve, reject) { if (opt_tabId === undefined) { resolve(false); return; } var tabId = /** @type {number} */ (opt_tabId); tabInForeground(tabId).then(function(result) { if (!result) { resolve(false); return; } if (!chrome.tabs || !chrome.tabs.get) { reject(); return; } chrome.tabs.get(tabId, function(tab) { if (chrome.runtime.lastError) { resolve(false); return; } var tabOrigin = getOriginFromUrl(tab.url); resolve(tabOrigin == origin); }); }); }); }; // Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview Implements a check whether an origin is allowed to assert an * app id based on whether they share the same effective TLD + 1. * */ 'use strict'; /** * Implements half of the app id policy: whether an origin is allowed to claim * an app id. For checking whether the app id also lists the origin, * @see AppIdChecker. * @implements OriginChecker * @constructor */ function CryptoTokenOriginChecker() { } /** * Checks whether the origin is allowed to claim the app ids. * @param {string} origin The origin claiming the app id. * @param {!Array} appIds The app ids being claimed. * @return {Promise} A promise for the result of the check. */ CryptoTokenOriginChecker.prototype.canClaimAppIds = function(origin, appIds) { var appIdChecks = appIds.map(this.checkAppId_.bind(this, origin)); return Promise.all(appIdChecks).then(function(results) { return results.every(function(result) { return result; }); }); }; /** * Checks if a single appId can be asserted by the given origin. * @param {string} origin The origin. * @param {string} appId The appId to check * @return {Promise} A promise for the result of the check * @private */ CryptoTokenOriginChecker.prototype.checkAppId_ = function(origin, appId) { return new Promise(function(resolve, reject) { if (!chrome.cryptotokenPrivate) { reject(); return; } chrome.cryptotokenPrivate.canOriginAssertAppId(origin, appId, resolve); }); }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** * @fileoverview CryptoToken background page */ 'use strict'; /** @const */ var BROWSER_SUPPORTS_TLS_CHANNEL_ID = true; /** @const */ var HTTP_ORIGINS_ALLOWED = false; /** @const */ var LOG_SAVER_EXTENSION_ID = 'fjajfjhkeibgmiggdfehjplbhmfkialk'; // Singleton tracking available devices. var gnubbies = new Gnubbies(); HidGnubbyDevice.register(gnubbies); UsbGnubbyDevice.register(gnubbies); var FACTORY_REGISTRY = (function() { var windowTimer = new WindowTimer(); var xhrTextFetcher = new XhrTextFetcher(); return new FactoryRegistry( new XhrAppIdCheckerFactory(xhrTextFetcher), new CryptoTokenApprovedOrigin(), new CountdownTimerFactory(windowTimer), new CryptoTokenOriginChecker(), new UsbHelper(), windowTimer, xhrTextFetcher); })(); var DEVICE_FACTORY_REGISTRY = new DeviceFactoryRegistry( new UsbGnubbyFactory(gnubbies), FACTORY_REGISTRY.getCountdownFactory(), new GoogleCorpIndividualAttestation()); /** * @param {*} request The received request * @return {boolean} Whether the request is a register/enroll request. */ function isRegisterRequest(request) { if (!request) { return false; } switch (request.type) { case MessageTypes.U2F_REGISTER_REQUEST: return true; default: return false; } } /** * Default response callback to deliver a response to a request. * @param {*} request The received request. * @param {function(*): void} sendResponse A callback that delivers a response. * @param {*} response The response to return. */ function defaultResponseCallback(request, sendResponse, response) { response['requestId'] = request['requestId']; try { sendResponse(response); } catch (e) { console.warn(UTIL_fmt('caught: ' + e.message)); } } /** * Response callback that delivers a response to a request only when the * sender is a foreground tab. * @param {*} request The received request. * @param {!MessageSender} sender The message sender. * @param {function(*): void} sendResponse A callback that delivers a response. * @param {*} response The response to return. */ function sendResponseToActiveTabOnly(request, sender, sendResponse, response) { tabInForeground(sender.tab.id).then(function(result) { // If the tab is no longer in the foreground, drop the result: the user // is no longer interacting with the tab that originated the request. if (result) { defaultResponseCallback(request, sendResponse, response); } }); } /** * Common handler for messages received from chrome.runtime.sendMessage and * chrome.runtime.connect + postMessage. * @param {*} request The received request * @param {!MessageSender} sender The message sender * @param {function(*): void} sendResponse A callback that delivers a response * @return {Closeable} A Closeable request handler. */ function messageHandler(request, sender, sendResponse) { var responseCallback; if (isRegisterRequest(request)) { responseCallback = sendResponseToActiveTabOnly.bind(null, request, sender, sendResponse); } else { responseCallback = defaultResponseCallback.bind(null, request, sendResponse); } var closeable = handleWebPageRequest(/** @type {Object} */(request), sender, responseCallback); return closeable; } /** * Listen to individual messages sent from (whitelisted) webpages via * chrome.runtime.sendMessage * @param {*} request The received request * @param {!MessageSender} sender The message sender * @param {function(*): void} sendResponse A callback that delivers a response * @return {boolean} */ function messageHandlerExternal(request, sender, sendResponse) { if (sender.id && sender.id === LOG_SAVER_EXTENSION_ID) { return handleLogSaverMessage(request); } messageHandler(request, sender, sendResponse); return true; // Tell Chrome not to destroy sendResponse yet } chrome.runtime.onMessageExternal.addListener(messageHandlerExternal); // Listen to direct connection events, and wire up a message handler on the port chrome.runtime.onConnectExternal.addListener(function(port) { function sendResponse(response) { port.postMessage(response); } var closeable; port.onMessage.addListener(function(request) { var sender = /** @type {!MessageSender} */ (port.sender); closeable = messageHandler(request, sender, sendResponse); }); port.onDisconnect.addListener(function() { if (closeable) { closeable.close(); } }); }); /** * Handles messages from the log-saver app. Temporarily replaces UTIL_fmt with * a wrapper that also sends formatted messages to the app. * @param {*} request The message received from the app * @return {boolean} Used as chrome.runtime.onMessage handler return value */ function handleLogSaverMessage(request) { if (request === 'start') { if (originalUtilFmt_) { // We're already sending return false; } originalUtilFmt_ = UTIL_fmt; UTIL_fmt = function(s) { var line = originalUtilFmt_(s); chrome.runtime.sendMessage(LOG_SAVER_EXTENSION_ID, line); return line; }; } else if (request === 'stop') { if (originalUtilFmt_) { UTIL_fmt = originalUtilFmt_; originalUtilFmt_ = null; } } return false; } /** @private */ var originalUtilFmt_ = null; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. 'use strict'; // Global holding our NaclBridge. var whispernetNacl = null; // Encoders and decoders for each client. var whisperEncoders = {}; var whisperDecoders = {}; /** * Initialize the whispernet encoder and decoder. * Call this before any other functions. * @param {string} clientId A string identifying the requester. * @param {Object} audioParams Audio parameters for token encoding and decoding. */ function audioConfig(clientId, audioParams) { if (!whispernetNacl) { chrome.copresencePrivate.sendInitialized(false); return; } console.log('Configuring encoder and decoder for client ' + clientId); whisperEncoders[clientId] = new WhisperEncoder(audioParams.paramData, whispernetNacl, clientId); whisperDecoders[clientId] = new WhisperDecoder(audioParams.paramData, whispernetNacl, clientId); } /** * Sends a request to whispernet to encode a token. * @param {string} clientId A string identifying the requester. * @param {Object} params Encode token parameters object. */ function encodeTokenRequest(clientId, params) { if (whisperEncoders[clientId]) { whisperEncoders[clientId].encode(params); } else { console.error('encodeTokenRequest: Whisper not initialized for client ' + clientId); } } /** * Sends a request to whispernet to decode samples. * @param {string} clientId A string identifying the requester. * @param {Object} params Process samples parameters object. */ function decodeSamplesRequest(clientId, params) { if (whisperDecoders[clientId]) { whisperDecoders[clientId].processSamples(params); } else { console.error('decodeSamplesRequest: Whisper not initialized for client ' + clientId); } } /** * Initialize our listeners and signal that the extension is loaded. */ function onWhispernetLoaded() { console.log('init: Nacl ready!'); // Setup all the listeners for the private API. chrome.copresencePrivate.onConfigAudio.addListener(audioConfig); chrome.copresencePrivate.onEncodeTokenRequest.addListener(encodeTokenRequest); chrome.copresencePrivate.onDecodeSamplesRequest.addListener( decodeSamplesRequest); // This first initialized is sent to indicate that the library is loaded. // Every other time, it will be sent only when Chrome wants to reinitialize // the encoder and decoder. chrome.copresencePrivate.sendInitialized(true); } /** * Initialize the whispernet Nacl bridge. */ function initWhispernet() { console.log('init: Starting Nacl bridge.'); // TODO(rkc): Figure out how to embed the .nmf and the .pexe into component // resources without having to rename them to .js. whispernetNacl = new NaclBridge('whispernet_proxy.nmf.png', onWhispernetLoaded); } window.addEventListener('DOMContentLoaded', initWhispernet); // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. 'use strict'; /** * Constructor for the Nacl bridge to the whispernet wrapper. * @param {string} nmf The relative path to the nmf containing the location of * the whispernet Nacl wrapper. * @param {function()} readyCallback Callback to be called once we've loaded the * whispernet wrapper. */ function NaclBridge(nmf, readyCallback) { this.readyCallback_ = readyCallback; this.callbacks_ = []; this.isEnabled_ = false; this.naclId_ = this.loadNacl_(nmf); } /** * Method to send generic byte data to the whispernet wrapper. * @param {Object} data Raw data to send to the whispernet wrapper. */ NaclBridge.prototype.send = function(data) { if (this.isEnabled_) { this.embed_.postMessage(data); } else { console.error('Whisper Nacl Bridge not initialized!'); } }; /** * Method to add a listener to Nacl messages received by this bridge. * @param {function(Event)} messageCallback Callback to receive the messsage. */ NaclBridge.prototype.addListener = function(messageCallback) { this.callbacks_.push(messageCallback); }; /** * Method that receives Nacl messages and forwards them to registered * callbacks. * @param {Event} e Event from the whispernet wrapper. * @private */ NaclBridge.prototype.onMessage_ = function(e) { if (this.isEnabled_) { this.callbacks_.forEach(function(callback) { callback(e); }); } }; /** * Injects the for this nacl manifest URL, generating a unique ID. * @param {string} manifestUrl Url to the nacl manifest to load. * @return {number} generated ID. * @private */ NaclBridge.prototype.loadNacl_ = function(manifestUrl) { var id = 'nacl-' + Math.floor(Math.random() * 10000); this.embed_ = document.createElement('embed'); this.embed_.name = 'nacl_module'; this.embed_.width = 1; this.embed_.height = 1; this.embed_.src = manifestUrl; this.embed_.id = id; this.embed_.type = 'application/x-pnacl'; // Wait for the element to load and callback. this.embed_.addEventListener('load', this.onNaclReady_.bind(this)); this.embed_.addEventListener('error', this.onNaclError_.bind(this)); // Inject the embed string into the page. document.body.appendChild(this.embed_); // Listen for messages from the NaCl module. window.addEventListener('message', this.onMessage_.bind(this), true); return id; }; /** * Called when the Whispernet wrapper is loaded. * @private */ NaclBridge.prototype.onNaclReady_ = function() { this.isEnabled_ = true; if (this.readyCallback_) this.readyCallback_(); }; /** * Callback that handles Nacl errors. * @param {string} msg Error string. * @private */ NaclBridge.prototype.onNaclError_ = function(msg) { // TODO(rkc): Handle error from NaCl better. console.error('NaCl error', msg); }; // Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. 'use strict'; /** * Function to convert an array of bytes to a base64 string * TODO(rkc): Change this to use a Uint8array instead of a string. * @param {string} bytes String containing the bytes we want to convert. * @return {string} String containing the base64 representation. */ function bytesToBase64(bytes) { var bstr = ''; for (var i = 0; i < bytes.length; ++i) bstr += String.fromCharCode(bytes[i]); return btoa(bstr).replace(/=/g, ''); } /** * Function to convert a string to an array of bytes. * @param {string} str String to convert. * @return {Array} Array containing the string. */ function stringToArray(str) { var buffer = []; for (var i = 0; i < str.length; ++i) buffer[i] = str.charCodeAt(i); return buffer; } /** * Creates a whispernet encoder. * @constructor * @param {Object} params Audio parameters for the whispernet encoder. * @param {Object} whisperNacl The NaclBridge object, used to communicate with * the whispernet wrapper. * @param {string} clientId A string identifying the requester. */ function WhisperEncoder(params, whisperNacl, clientId) { this.whisperNacl_ = whisperNacl; this.whisperNacl_.addListener(this.onNaclMessage_.bind(this)); this.clientId_ = clientId; var msg = { type: 'initialize_encoder', client_id: clientId, params: params }; this.whisperNacl_.send(msg); } /** * Method to encode a token. * @param {Object} params Encode token parameters object. */ WhisperEncoder.prototype.encode = function(params) { // Pad the token before decoding it. var token = params.token.token; while (token.length % 4 > 0) token += '='; var msg = { type: 'encode_token', client_id: this.clientId_, // Trying to send the token in binary form to Nacl doesn't work correctly. // We end up with the correct string + a bunch of extra characters. This is // true of returning a binary string too; hence we communicate back and // forth by converting the bytes into an array of integers. token: stringToArray(atob(token)), repetitions: params.repetitions, use_dtmf: params.token.audible, use_crc: params.tokenParams.crc, use_parity: params.tokenParams.parity }; this.whisperNacl_.send(msg); }; /** * Method to handle messages from the whispernet NaCl wrapper. * @param {Event} e Event from the whispernet wrapper. * @private */ WhisperEncoder.prototype.onNaclMessage_ = function(e) { var msg = e.data; if (msg.type == 'encode_token_response' && msg.client_id == this.clientId_) { chrome.copresencePrivate.sendSamples(this.clientId_, { token: bytesToBase64(msg.token), audible: msg.audible }, msg.samples); } }; /** * Creates a whispernet decoder. * @constructor * @param {Object} params Audio parameters for the whispernet decoder. * @param {Object} whisperNacl The NaclBridge object, used to communicate with * the whispernet wrapper. * @param {string} clientId A string identifying the requester. */ function WhisperDecoder(params, whisperNacl, clientId) { this.whisperNacl_ = whisperNacl; this.whisperNacl_.addListener(this.onNaclMessage_.bind(this)); this.clientId_ = clientId; var msg = { type: 'initialize_decoder', client_id: clientId, params: params }; this.whisperNacl_.send(msg); } /** * Method to request the decoder to process samples. * @param {Object} params Process samples parameters object. */ WhisperDecoder.prototype.processSamples = function(params) { var msg = { type: 'decode_tokens', client_id: this.clientId_, data: params.samples, decode_audible: params.decodeAudible, token_length_dtmf: params.audibleTokenParams.length, crc_dtmf: params.audibleTokenParams.crc, parity_dtmf: params.audibleTokenParams.parity, decode_inaudible: params.decodeInaudible, token_length_dsss: params.inaudibleTokenParams.length, crc_dsss: params.inaudibleTokenParams.crc, parity_dsss: params.inaudibleTokenParams.parity, }; this.whisperNacl_.send(msg); }; /** * Method to handle messages from the whispernet NaCl wrapper. * @param {Event} e Event from the whispernet wrapper. * @private */ WhisperDecoder.prototype.onNaclMessage_ = function(e) { var msg = e.data; if (msg.type == 'decode_tokens_response' && msg.client_id == this.clientId_) { this.handleCandidates_(msg.tokens, msg.audible); } }; /** * Method to receive tokens from the decoder and process and forward them to the * token callback registered with us. * @param {!Array.string} candidates Array of token candidates. * @param {boolean} audible Whether the received candidates are from the audible * decoder or not. * @private */ WhisperDecoder.prototype.handleCandidates_ = function(candidates, audible) { if (!candidates || candidates.length == 0) return; var returnCandidates = []; for (var i = 0; i < candidates.length; ++i) { returnCandidates[i] = { token: bytesToBase64(candidates[i]), audible: audible }; } chrome.copresencePrivate.sendFound(this.clientId_, returnCandidates); }; { "program": { "portable": { "pnacl-translate": { "url": "whispernet_proxy_pnacl.pexe.png?v00008" } } } } PEXE!pA#AI29 %bEB $"D$Ȑ"9@CE2+dHb!C HP (@q)q$ CE "+$>`#v`@B@!@D@F PPPP00@H@Gd EA@@$ @@@I@CQ PPPPqq@FpQ@@K4@CQDPP1PPqPdA1P@DQ@4@A@T@QDA@-@4A@qDPB@ @A@4@@ D14,@D ,@PPAEAG@t@@PP@dP @dp!tP@)@H!d@@ @TPP#!0B0#0B(0 #0B 0 #D0B$0 #a0B 0 #D0BP@ #D0B$0 #a0B40 #0B$0 #0B$0 #0B<0#a0B0 #a0B0 #0B00 #a0B$0 #0B(0 #0B$0 #0B0 #0B$0 #0B$0 #Da0B$0 #D0B<0 #a0B0 #!0BH@ #D0B0 #0B<0 #0B(0 #0B(0 #a0B0 #a0B0 #a0B0 #0B 0#!0B(0 #0B(0 #D0B@0 #0B40 #0B40 #D0B@0 #D0B40 #0B@0 #D0B40 #D0B$0 #D0B40 #D0B(0 #0B(0 #0B 0 #!0B$0 #0B$0 #D0B(0 #0B(0 #0B$0 #a0B40 #D0B40 #D0B$0 #0B40 #0B00 #a0B0 #0BD0 #D0B(0 #a0B0 #0B40 #0B$0 #0B00 #a0B(0 #a0B$0 #0B 0 #D0B0 #D0B00 #0B$0 #a0B0 #D0B00 #;0B #0B40 #Da0B0 #D0B #D0B$0 #Da0B0 #0B 0x0B$0 #D0B0 #D0B$0 #0B(0 #0B(0 #D0B$0 #0B 0 #a0B$0 #Da0B0 #0B00 #0B0 #D0B 0 #D0n0B0 #0B40 #D0B$0 #D0B #0B(0 #0B0 #0B 0 #D0 #D0B$0 #D0 #D0B0 #D<0B #0B$0 #D!0 #0B@0 #D 0 #0B 0 #a0B0 #a0B@0 #a0B0 #a0B #0B(0 #D0B$0 #Da0B0 #0B$0 #D0B$0 #a0B0 #0B #Da0B0 #Da0B 0 #D0B #D0B40 #0B 0 #D0B$0 #D0B40 #D0B`0 #0B$00B40 #D0B40 #D0B(0 #D0B #D0B00 #0B$0 #0B #80B #D0B$0 #0B40 #D0B@0 #D0BT0a0B0 #0B #D0B$0 #D0B40 #0B$0 #0B40 #0B40 #!00B$0 #0B40 #0B$0 #D0B$0 #Da0B(0 #D0B40 #D0B$00B0 #D0B$0 #D0B$0 #Da0B(0 #a0B0 #D0B0 #DA0oa0B$0 #D0B$0 #D0B$0 #D0B$0 #90B@0 #D0B40 #D0B40 #D0 #0B0 #a0B #)0B #D0B$0ya0B40 #0B40 #0B\0 #Da0B$0 #0B$0 #D0B40 #0B40 #Da0B 0 #D0B40 #0B40 #D0B\0 #(0B #(0B #0B40 #0B(0 #0B40 # 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'.pp::CompletionCallback pp::CompletionCallbackFactory::NewCallbackHelper(Dispatcher *) [T = WhispernetUrlVerifier, ThreadTraits = pp::ThreadSafeThreadTraits, Dispatcher = pp::CompletionCallbackFactory::Dispatcher0] 0;`I. - Ȯ̍5I @ӜdbpȒX)b;`I.n - Ȯ̍5I H@dbfX)f;`40"ςJj*Jr++sۉq(x[Z\]]N @۠Ȓvb\`h`D0 %T'&GWGWdWF"@# !P0((+2$7:"27 AA }5͕%ٕĸ` J+ Ȯ̍n'gYI =M锐)P$''929 u$tR2SBR2@@Z@JtJ@Z@J(xQUH HɜN H Hɜ ,,ۆp$j(` #M؆@3)9:49:110/:4"0607""@' x ut|4O>@Apd]>An(x4E7S#665G'v&Vg443&E'F74VT46F&4VTTT@H$<_a{zC391:2;92923:;92926707291 ^7V6bVFR7VF5FV@3:;929267072""@& 5!*K+#1)J;+s!*s+ +)J;+sb{[)J;+si K1c{ ciaiaaiaiaaia1 c+a K;sC{s!*s+ +yC+#*K+#1I"*K+#)J;+sb{[)J;+si K1c{ ciaiaaiaiaaia1 c+ayC+#*K+#)J;+sѡ s{+{s)J;+s 1c{ ciaaaia]][HQYN][Z\\Y[Z\WZOQYOQYNS\[ HK HK  HK HK H HK Y\ HQY\\؛HQYN\X[ HK H  HK H \]\؛Q\] ؛ZQ\]I Q\]HHQYOQYNS\[ HK HK  HK HK H HK Y\ ZQ\]HHQY\\؛HQYN\X[ HK H  HK H HSR]\\Y[Z\H\]Y&@ttܞxttxX@ZbX@ZbX@`X@ZbX@Zb|@|ttPX@R@@z@ttxX@ZbX@ZbX@`X@ZbX@Zb|(x3GF625&RvV榣FW&Ʀ#WFVSvV榣FW&Ʀ37&cFRvV榣3t6WV&SvV榣FW&Ʀ37&&6cF26GRvV榣36GRvV榣F'cFRvV榣3E'FV㣣#W26GBT&fWFb26GbT6beT6RvV榣FW&Ʀ37&cFBT&fWFRvV榣3t6WV&SvV榣FW&Ʀ37&&6cF26GRvV榣36GRvV榣F'cFRvV榣3E'FVB%fW&7R&Ɩv@3242227222270827 9<30:27):4203779:222':292422-2422270827 9<30:27):42':29242227240'82747290600/8717830:30:79:270879:27 9<30:27):4279:27240'827472906007830:79:27240'82747290600/8717830:30:79:27 9<30:79:27 9+082927*09227!5270:4<30:0279:27*0'82747290600:6487830:79:27 9<30:. ^jEigen::CwiseBinaryOp, const Eigen::Map, 0, Eigen::Stride<0, 0> >, const Eigen::CwiseBinaryOp, const Eigen::CwiseBinaryOp, const Eigen::Array, const Eigen::ArrayWrapper, 1, -1, false> > > >, const Eigen::CwiseUnaryOp, const Eigen::Array > > >::CwiseBinaryOp(const Lhs &, const Rhs &, const BinaryOp &) [BinaryOp = Eigen::internal::scalar_product_op, Lhs = const Eigen::Map, 0, Eigen::Stride<0, 0> >, Rhs = const Eigen::CwiseBinaryOp, const Eigen::CwiseBinaryOp, const Eigen::Array, const Eigen::ArrayWrapper, 1, -1, false> > > >, const Eigen::CwiseUnaryOp, const Eigen::Array > >]~+J;+sK+Js {)J;+sIs+s cљ c kz1c{ a{s)J;+sK+Js {)J;+sIs+s cљ c {#z1c{ c1c{ a{s)J;+s 1c{ ciaaaiaa{s)J;+s ˻ +)J;+sѡ s{+)J;+sb{[)J;+si K1c{ ciaiaaiaiaaia1 c+a{s)J;+sK+r {)J;+sIs+s cљ c jcKc+z1c{ a{s)J;+s 1c{ ciaaaiaK+Js {C{saB1a{sB1a{sJs {1IJs {)J;+sIs+s cљ c kz1c{ aaB{s)J;+sK+Js {)J;+sIs+s cљ c {#z1c{ c1c{ a{s)J;+s 1c{ ciaaaiaa{s)J;+s ˻ +)J;+sѡ s{+)J;+sb{[)J;+si K1c{ ciaiaaiaiaaia1 c+aB{s)J;+sK+r {)J;+sIs+s cљ c jcKc+z1c{ a{s)J;+s 1c{ ciaaaiaPQY]\P[\OQYN][X[Y[ [ ؛HQYN\X[ HK H  HK H ؛HQYN\Xޕ\\OQY\\OQYOQYNS\[ HK HK  HK HK H HK Y\]\P[\؛ ؛ ؛P[\I ȖP[\HHQYN][X[Y[ [ H؛HQYN\X[ HK H  HK H H؛HQYN\Xޕ\\OQY\\OQYOQYNS\[ HK HK  HK HK H HK Y\O4ttxttxX@ZbX@ZbX@`X@ZbX@Zb|X@bX@ZbX@|ttP@LX@R@@z@ttxX@ZbX@ZbX@`X@ZbX@Zb|X@֤@z@bX@ֆ@z@ZbX@@z@ʺ(xQvV榣'6WSvV榣#6SvV榣F'cFb6W㣣'6WFW&GWFVFVET&fWFRvV榣#6SvV榣F'cFb6WTfW@C[˜[Z[Z\[[KXYZ\[Z\[YYPR@@@@@PR\(xx@TFW6F'$F66GW&2VF"Vf&W2BFƖW@ۤ@@t@(xZYX[YYٗ\\ PR@@@@@PR\(xZYX[YȦPR@@@ʾȾ@@\(xZYX[\\C+[1 Kc+#k{c{+IQYOQYNS؛HQYNS\[ HK H  HK H  HQY\Y  HK H Y\ U\ HY HY HY HY^ U\HHQYNS؛HQYNS\[ HK H  HK H  HQY\Y  ؚHHK HH H[T[HY\YMttxttxttx@ttxX@ZbX@bX@`X@ZbX@b|X@`X@ttx`X@`|@|X@ZbX@bX@|X@`|ttPX@X@R@@z@ttxttx@ttxX@ZbX@bX@`X@ZbX@b|X@`X@ttx`X@`|@|X@ZbX@bX@|X@@z@`(x'eFRvV榣sTV&%FV7FSvV榣F'cFRvV榣F'w%W&SvV榣3t6WV&gVvSvV榣FW&Ʀ37&%W%Wf3GG3VcFRvV榣#6SvV榣$'3GG3VcFb6WB㣣37VFDFFBT6Gb26G25&b26Gń6RvV榣F'cF"6RvV榣F'w%W&SvV榣3t6WV&gVvSvV榣FW&Ʀ37&%W%Wf3GG3VcFRvV榣#6SvV榣$'3GG3VcFb6W%FV7FGWBBT6GRvV榣F'w%W&SvV榣$'cF@à(MGJnN(l(MG̭L. 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// Copyright (c) 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // // Copyright (c) 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. /** @typedef {Document|DocumentFragment|Element} */ var ProcessingRoot; /** * @fileoverview This is a simple template engine inspired by JsTemplates * optimized for i18n. * * It currently supports three handlers: * * * i18n-content which sets the textContent of the element. * * * * * i18n-options which generates