forked from mirrors/gecko-dev
944 lines
26 KiB
JavaScript
944 lines
26 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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const FXA_ENABLED_PREF = "identity.fxaccounts.enabled";
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const DISTRIBUTION_ID_PREF = "distribution.id";
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const DISTRIBUTION_ID_CHINA_REPACK = "MozillaOnline";
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const { XPCOMUtils } = ChromeUtils.importESModule(
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"resource://gre/modules/XPCOMUtils.sys.mjs"
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);
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const { AppConstants } = ChromeUtils.import(
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"resource://gre/modules/AppConstants.jsm"
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);
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const { NewTabUtils } = ChromeUtils.import(
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"resource://gre/modules/NewTabUtils.jsm"
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);
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const { ShellService } = ChromeUtils.import(
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"resource:///modules/ShellService.jsm"
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);
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const lazy = {};
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XPCOMUtils.defineLazyModuleGetters(lazy, {
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ASRouterPreferences: "resource://activity-stream/lib/ASRouterPreferences.jsm",
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AddonManager: "resource://gre/modules/AddonManager.jsm",
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ClientEnvironment: "resource://normandy/lib/ClientEnvironment.jsm",
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ProfileAge: "resource://gre/modules/ProfileAge.jsm",
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TelemetryEnvironment: "resource://gre/modules/TelemetryEnvironment.jsm",
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AttributionCode: "resource:///modules/AttributionCode.jsm",
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TargetingContext: "resource://messaging-system/targeting/Targeting.jsm",
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Region: "resource://gre/modules/Region.jsm",
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TelemetrySession: "resource://gre/modules/TelemetrySession.jsm",
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HomePage: "resource:///modules/HomePage.jsm",
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AboutNewTab: "resource:///modules/AboutNewTab.jsm",
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BrowserWindowTracker: "resource:///modules/BrowserWindowTracker.jsm",
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});
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XPCOMUtils.defineLazyGetter(lazy, "fxAccounts", () => {
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return ChromeUtils.import(
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"resource://gre/modules/FxAccounts.jsm"
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).getFxAccountsSingleton();
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});
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XPCOMUtils.defineLazyPreferenceGetter(
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lazy,
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"cfrFeaturesUserPref",
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"browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features",
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true
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);
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XPCOMUtils.defineLazyPreferenceGetter(
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lazy,
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"cfrAddonsUserPref",
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"browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons",
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true
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);
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XPCOMUtils.defineLazyPreferenceGetter(
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lazy,
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"isWhatsNewPanelEnabled",
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"browser.messaging-system.whatsNewPanel.enabled",
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false
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);
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XPCOMUtils.defineLazyPreferenceGetter(
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lazy,
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"hasAccessedFxAPanel",
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"identity.fxaccounts.toolbar.accessed",
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false
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);
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XPCOMUtils.defineLazyPreferenceGetter(
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lazy,
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"clientsDevicesDesktop",
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"services.sync.clients.devices.desktop",
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0
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);
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XPCOMUtils.defineLazyPreferenceGetter(
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lazy,
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"clientsDevicesMobile",
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"services.sync.clients.devices.mobile",
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0
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);
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XPCOMUtils.defineLazyPreferenceGetter(
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lazy,
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"syncNumClients",
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"services.sync.numClients",
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0
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);
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XPCOMUtils.defineLazyPreferenceGetter(
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lazy,
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"devtoolsSelfXSSCount",
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"devtools.selfxss.count",
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0
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);
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XPCOMUtils.defineLazyPreferenceGetter(
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lazy,
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"isFxAEnabled",
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FXA_ENABLED_PREF,
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true
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);
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XPCOMUtils.defineLazyPreferenceGetter(
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lazy,
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"isXPIInstallEnabled",
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"xpinstall.enabled",
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true
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);
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XPCOMUtils.defineLazyPreferenceGetter(
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lazy,
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"snippetsUserPref",
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"browser.newtabpage.activity-stream.feeds.snippets",
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false
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);
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XPCOMUtils.defineLazyServiceGetters(lazy, {
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BrowserHandler: ["@mozilla.org/browser/clh;1", "nsIBrowserHandler"],
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TrackingDBService: [
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"@mozilla.org/tracking-db-service;1",
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"nsITrackingDBService",
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],
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});
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const FXA_USERNAME_PREF = "services.sync.username";
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const { activityStreamProvider: asProvider } = NewTabUtils;
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const FXA_ATTACHED_CLIENTS_UPDATE_INTERVAL = 4 * 60 * 60 * 1000; // Four hours
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const FRECENT_SITES_UPDATE_INTERVAL = 6 * 60 * 60 * 1000; // Six hours
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const FRECENT_SITES_IGNORE_BLOCKED = false;
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const FRECENT_SITES_NUM_ITEMS = 25;
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const FRECENT_SITES_MIN_FRECENCY = 100;
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const CACHE_EXPIRATION = 5 * 60 * 1000;
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const jexlEvaluationCache = new Map();
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/**
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* CachedTargetingGetter
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* @param property {string} Name of the method
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* @param options {any=} Options passed to the method
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* @param updateInterval {number?} Update interval for query. Defaults to FRECENT_SITES_UPDATE_INTERVAL
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*/
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function CachedTargetingGetter(
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property,
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options = null,
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updateInterval = FRECENT_SITES_UPDATE_INTERVAL,
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getter = asProvider
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) {
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return {
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_lastUpdated: 0,
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_value: null,
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// For testing
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expire() {
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this._lastUpdated = 0;
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this._value = null;
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},
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async get() {
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const now = Date.now();
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if (now - this._lastUpdated >= updateInterval) {
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this._value = await getter[property](options);
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this._lastUpdated = now;
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}
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return this._value;
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},
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};
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}
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function CacheListAttachedOAuthClients() {
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return {
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_lastUpdated: 0,
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_value: null,
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expire() {
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this._lastUpdated = 0;
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this._value = null;
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},
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get() {
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const now = Date.now();
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if (now - this._lastUpdated >= FXA_ATTACHED_CLIENTS_UPDATE_INTERVAL) {
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this._value = new Promise(resolve => {
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lazy.fxAccounts
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.listAttachedOAuthClients()
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.then(clients => {
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resolve(clients);
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})
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.catch(() => resolve([]));
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});
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this._lastUpdated = now;
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}
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return this._value;
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},
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};
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}
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function CheckBrowserNeedsUpdate(
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updateInterval = FRECENT_SITES_UPDATE_INTERVAL
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) {
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const UpdateChecker = Cc["@mozilla.org/updates/update-checker;1"];
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const checker = {
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_lastUpdated: 0,
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_value: null,
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// For testing. Avoid update check network call.
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setUp(value) {
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this._lastUpdated = Date.now();
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this._value = value;
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},
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expire() {
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this._lastUpdated = 0;
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this._value = null;
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},
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get() {
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return new Promise((resolve, reject) => {
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const now = Date.now();
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const updateServiceListener = {
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// eslint-disable-next-line require-await
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async onCheckComplete(request, updates) {
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checker._value = !!updates.length;
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resolve(checker._value);
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},
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// eslint-disable-next-line require-await
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async onError(request, update) {
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reject(request);
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},
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QueryInterface: ChromeUtils.generateQI(["nsIUpdateCheckListener"]),
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};
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if (UpdateChecker && now - this._lastUpdated >= updateInterval) {
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const checkerInstance = UpdateChecker.createInstance(
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Ci.nsIUpdateChecker
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);
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if (checkerInstance.canCheckForUpdates) {
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checkerInstance.checkForUpdates(updateServiceListener, true);
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this._lastUpdated = now;
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} else {
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resolve(false);
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}
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} else {
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resolve(this._value);
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}
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});
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},
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};
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return checker;
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}
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const QueryCache = {
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expireAll() {
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Object.keys(this.queries).forEach(query => {
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this.queries[query].expire();
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});
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Object.keys(this.getters).forEach(key => {
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this.getters[key].expire();
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});
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},
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queries: {
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TopFrecentSites: new CachedTargetingGetter("getTopFrecentSites", {
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ignoreBlocked: FRECENT_SITES_IGNORE_BLOCKED,
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numItems: FRECENT_SITES_NUM_ITEMS,
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topsiteFrecency: FRECENT_SITES_MIN_FRECENCY,
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onePerDomain: true,
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includeFavicon: false,
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}),
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TotalBookmarksCount: new CachedTargetingGetter("getTotalBookmarksCount"),
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CheckBrowserNeedsUpdate: new CheckBrowserNeedsUpdate(),
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RecentBookmarks: new CachedTargetingGetter("getRecentBookmarks"),
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ListAttachedOAuthClients: new CacheListAttachedOAuthClients(),
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UserMonthlyActivity: new CachedTargetingGetter("getUserMonthlyActivity"),
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},
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getters: {
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doesAppNeedPin: new CachedTargetingGetter(
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"doesAppNeedPin",
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null,
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FRECENT_SITES_UPDATE_INTERVAL,
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ShellService
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),
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doesAppNeedPrivatePin: new CachedTargetingGetter(
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"doesAppNeedPin",
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true,
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FRECENT_SITES_UPDATE_INTERVAL,
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ShellService
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),
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},
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};
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/**
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* sortMessagesByWeightedRank
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*
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* Each message has an associated weight, which is guaranteed to be strictly
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* positive. Sort the messages so that higher weighted messages are more likely
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* to come first.
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*
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* Specifically, sort them so that the probability of message x_1 with weight
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* w_1 appearing before message x_2 with weight w_2 is (w_1 / (w_1 + w_2)).
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*
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* This is equivalent to requiring that x_1 appearing before x_2 is (w_1 / w_2)
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* "times" as likely as x_2 appearing before x_1.
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*
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* See Bug 1484996, Comment 2 for a justification of the method.
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*
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* @param {Array} messages - A non-empty array of messages to sort, all with
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* strictly positive weights
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* @returns the sorted array
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*/
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function sortMessagesByWeightedRank(messages) {
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return messages
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.map(message => ({
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message,
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rank: Math.pow(Math.random(), 1 / message.weight),
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}))
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.sort((a, b) => b.rank - a.rank)
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.map(({ message }) => message);
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}
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/**
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* getSortedMessages - Given an array of Messages, applies sorting and filtering rules
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* in expected order.
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*
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* @param {Array<Message>} messages
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* @param {{}} options
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* @param {boolean} options.ordered - Should .order be used instead of random weighted sorting?
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* @returns {Array<Message>}
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*/
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function getSortedMessages(messages, options = {}) {
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let { ordered } = { ordered: false, ...options };
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let result = messages;
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if (!ordered) {
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result = sortMessagesByWeightedRank(result);
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}
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result.sort((a, b) => {
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// Next, sort by priority
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if (a.priority > b.priority || (!isNaN(a.priority) && isNaN(b.priority))) {
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return -1;
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}
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if (a.priority < b.priority || (isNaN(a.priority) && !isNaN(b.priority))) {
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return 1;
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}
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// Sort messages with targeting expressions higher than those with none
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if (a.targeting && !b.targeting) {
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return -1;
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}
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if (!a.targeting && b.targeting) {
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return 1;
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}
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// Next, sort by order *ascending* if ordered = true
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if (ordered) {
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if (a.order > b.order || (!isNaN(a.order) && isNaN(b.order))) {
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return 1;
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}
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if (a.order < b.order || (isNaN(a.order) && !isNaN(b.order))) {
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return -1;
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}
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}
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return 0;
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});
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return result;
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}
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/**
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* parseAboutPageURL - Parse a URL string retrieved from about:home and about:new, returns
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* its type (web extenstion or custom url) and the parsed url(s)
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*
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* @param {string} url - A URL string for home page or newtab page
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* @returns {Object} {
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* isWebExt: boolean,
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* isCustomUrl: boolean,
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* urls: Array<{url: string, host: string}>
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* }
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*/
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function parseAboutPageURL(url) {
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let ret = {
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isWebExt: false,
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isCustomUrl: false,
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urls: [],
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};
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if (url.startsWith("moz-extension://")) {
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ret.isWebExt = true;
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ret.urls.push({ url, host: "" });
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} else {
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// The home page URL could be either a single URL or a list of "|" separated URLs.
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// Note that it should work with "about:home" and "about:blank", in which case the
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// "host" is set as an empty string.
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for (const _url of url.split("|")) {
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if (!["about:home", "about:newtab", "about:blank"].includes(_url)) {
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ret.isCustomUrl = true;
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}
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try {
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const parsedURL = new URL(_url);
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const host = parsedURL.hostname.replace(/^www\./i, "");
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ret.urls.push({ url: _url, host });
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} catch (e) {}
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}
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// If URL parsing failed, just return the given url with an empty host
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if (!ret.urls.length) {
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ret.urls.push({ url, host: "" });
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}
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}
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return ret;
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}
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const TargetingGetters = {
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get locale() {
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return Services.locale.appLocaleAsBCP47;
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},
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get localeLanguageCode() {
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return (
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Services.locale.appLocaleAsBCP47 &&
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Services.locale.appLocaleAsBCP47.substr(0, 2)
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);
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},
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get browserSettings() {
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const { settings } = lazy.TelemetryEnvironment.currentEnvironment;
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return {
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update: settings.update,
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};
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},
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get attributionData() {
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// Attribution is determined at startup - so we can use the cached attribution at this point
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return lazy.AttributionCode.getCachedAttributionData();
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},
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get currentDate() {
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return new Date();
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},
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get profileAgeCreated() {
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return lazy.ProfileAge().then(times => times.created);
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},
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get profileAgeReset() {
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return lazy.ProfileAge().then(times => times.reset);
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},
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get usesFirefoxSync() {
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return Services.prefs.prefHasUserValue(FXA_USERNAME_PREF);
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},
|
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get isFxAEnabled() {
|
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return lazy.isFxAEnabled;
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},
|
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get sync() {
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return {
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desktopDevices: lazy.clientsDevicesDesktop,
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mobileDevices: lazy.clientsDevicesMobile,
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totalDevices: lazy.syncNumClients,
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};
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},
|
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get xpinstallEnabled() {
|
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// This is needed for all add-on recommendations, to know if we allow xpi installs in the first place
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return lazy.isXPIInstallEnabled;
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},
|
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get addonsInfo() {
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let bts = Cc["@mozilla.org/backgroundtasks;1"]?.getService(
|
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Ci.nsIBackgroundTasks
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);
|
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if (bts?.isBackgroundTaskMode) {
|
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return { addons: {}, isFullData: true };
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}
|
|
|
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return lazy.AddonManager.getActiveAddons(["extension", "service"]).then(
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({ addons, fullData }) => {
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const info = {};
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for (const addon of addons) {
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info[addon.id] = {
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version: addon.version,
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type: addon.type,
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isSystem: addon.isSystem,
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isWebExtension: addon.isWebExtension,
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};
|
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if (fullData) {
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Object.assign(info[addon.id], {
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name: addon.name,
|
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userDisabled: addon.userDisabled,
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installDate: addon.installDate,
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});
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}
|
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}
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return { addons: info, isFullData: fullData };
|
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}
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);
|
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},
|
|
get searchEngines() {
|
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const NONE = { installed: [], current: "" };
|
|
let bts = Cc["@mozilla.org/backgroundtasks;1"]?.getService(
|
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Ci.nsIBackgroundTasks
|
|
);
|
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if (bts?.isBackgroundTaskMode) {
|
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return Promise.resolve(NONE);
|
|
}
|
|
return new Promise(resolve => {
|
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// Note: calling init ensures this code is only executed after Search has been initialized
|
|
Services.search
|
|
.getAppProvidedEngines()
|
|
.then(engines => {
|
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resolve({
|
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current: Services.search.defaultEngine.identifier,
|
|
installed: engines.map(engine => engine.identifier),
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});
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})
|
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.catch(() => resolve(NONE));
|
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});
|
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},
|
|
get isDefaultBrowser() {
|
|
try {
|
|
return ShellService.isDefaultBrowser();
|
|
} catch (e) {}
|
|
return null;
|
|
},
|
|
get devToolsOpenedCount() {
|
|
return lazy.devtoolsSelfXSSCount;
|
|
},
|
|
get topFrecentSites() {
|
|
return QueryCache.queries.TopFrecentSites.get().then(sites =>
|
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sites.map(site => ({
|
|
url: site.url,
|
|
host: new URL(site.url).hostname,
|
|
frecency: site.frecency,
|
|
lastVisitDate: site.lastVisitDate,
|
|
}))
|
|
);
|
|
},
|
|
get recentBookmarks() {
|
|
return QueryCache.queries.RecentBookmarks.get();
|
|
},
|
|
get pinnedSites() {
|
|
return NewTabUtils.pinnedLinks.links.map(site =>
|
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site
|
|
? {
|
|
url: site.url,
|
|
host: new URL(site.url).hostname,
|
|
searchTopSite: site.searchTopSite,
|
|
}
|
|
: {}
|
|
);
|
|
},
|
|
get providerCohorts() {
|
|
return lazy.ASRouterPreferences.providers.reduce((prev, current) => {
|
|
prev[current.id] = current.cohort || "";
|
|
return prev;
|
|
}, {});
|
|
},
|
|
get totalBookmarksCount() {
|
|
return QueryCache.queries.TotalBookmarksCount.get();
|
|
},
|
|
get firefoxVersion() {
|
|
return parseInt(AppConstants.MOZ_APP_VERSION.match(/\d+/), 10);
|
|
},
|
|
get region() {
|
|
return lazy.Region.home || "";
|
|
},
|
|
get needsUpdate() {
|
|
return QueryCache.queries.CheckBrowserNeedsUpdate.get();
|
|
},
|
|
get hasPinnedTabs() {
|
|
for (let win of Services.wm.getEnumerator("navigator:browser")) {
|
|
if (win.closed || !win.ownerGlobal.gBrowser) {
|
|
continue;
|
|
}
|
|
if (win.ownerGlobal.gBrowser.visibleTabs.filter(t => t.pinned).length) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
},
|
|
get hasAccessedFxAPanel() {
|
|
return lazy.hasAccessedFxAPanel;
|
|
},
|
|
get isWhatsNewPanelEnabled() {
|
|
return lazy.isWhatsNewPanelEnabled;
|
|
},
|
|
get userPrefs() {
|
|
return {
|
|
cfrFeatures: lazy.cfrFeaturesUserPref,
|
|
cfrAddons: lazy.cfrAddonsUserPref,
|
|
snippets: lazy.snippetsUserPref,
|
|
};
|
|
},
|
|
get totalBlockedCount() {
|
|
return lazy.TrackingDBService.sumAllEvents();
|
|
},
|
|
get blockedCountByType() {
|
|
const idToTextMap = new Map([
|
|
[Ci.nsITrackingDBService.TRACKERS_ID, "trackerCount"],
|
|
[Ci.nsITrackingDBService.TRACKING_COOKIES_ID, "cookieCount"],
|
|
[Ci.nsITrackingDBService.CRYPTOMINERS_ID, "cryptominerCount"],
|
|
[Ci.nsITrackingDBService.FINGERPRINTERS_ID, "fingerprinterCount"],
|
|
[Ci.nsITrackingDBService.SOCIAL_ID, "socialCount"],
|
|
]);
|
|
|
|
const dateTo = new Date();
|
|
const dateFrom = new Date(dateTo.getTime() - 42 * 24 * 60 * 60 * 1000);
|
|
return lazy.TrackingDBService.getEventsByDateRange(dateFrom, dateTo).then(
|
|
eventsByDate => {
|
|
let totalEvents = {};
|
|
for (let blockedType of idToTextMap.values()) {
|
|
totalEvents[blockedType] = 0;
|
|
}
|
|
|
|
return eventsByDate.reduce((acc, day) => {
|
|
const type = day.getResultByName("type");
|
|
const count = day.getResultByName("count");
|
|
acc[idToTextMap.get(type)] = acc[idToTextMap.get(type)] + count;
|
|
return acc;
|
|
}, totalEvents);
|
|
}
|
|
);
|
|
},
|
|
get attachedFxAOAuthClients() {
|
|
return this.usesFirefoxSync
|
|
? QueryCache.queries.ListAttachedOAuthClients.get()
|
|
: [];
|
|
},
|
|
get platformName() {
|
|
return AppConstants.platform;
|
|
},
|
|
get isChinaRepack() {
|
|
return (
|
|
Services.prefs
|
|
.getDefaultBranch(null)
|
|
.getCharPref(DISTRIBUTION_ID_PREF, "default") ===
|
|
DISTRIBUTION_ID_CHINA_REPACK
|
|
);
|
|
},
|
|
get userId() {
|
|
return lazy.ClientEnvironment.userId;
|
|
},
|
|
get profileRestartCount() {
|
|
let bts = Cc["@mozilla.org/backgroundtasks;1"]?.getService(
|
|
Ci.nsIBackgroundTasks
|
|
);
|
|
if (bts?.isBackgroundTaskMode) {
|
|
return 0;
|
|
}
|
|
// Counter starts at 1 when a profile is created, substract 1 so the value
|
|
// returned matches expectations
|
|
return (
|
|
lazy.TelemetrySession.getMetadata("targeting").profileSubsessionCounter -
|
|
1
|
|
);
|
|
},
|
|
get homePageSettings() {
|
|
const url = lazy.HomePage.get();
|
|
const { isWebExt, isCustomUrl, urls } = parseAboutPageURL(url);
|
|
|
|
return {
|
|
isWebExt,
|
|
isCustomUrl,
|
|
urls,
|
|
isDefault: lazy.HomePage.isDefault,
|
|
isLocked: lazy.HomePage.locked,
|
|
};
|
|
},
|
|
get newtabSettings() {
|
|
const url = lazy.AboutNewTab.newTabURL;
|
|
const { isWebExt, isCustomUrl, urls } = parseAboutPageURL(url);
|
|
|
|
return {
|
|
isWebExt,
|
|
isCustomUrl,
|
|
isDefault: lazy.AboutNewTab.activityStreamEnabled,
|
|
url: urls[0].url,
|
|
host: urls[0].host,
|
|
};
|
|
},
|
|
get isFissionExperimentEnabled() {
|
|
return (
|
|
Services.appinfo.fissionExperimentStatus ===
|
|
Ci.nsIXULRuntime.eExperimentStatusTreatment
|
|
);
|
|
},
|
|
get activeNotifications() {
|
|
let bts = Cc["@mozilla.org/backgroundtasks;1"]?.getService(
|
|
Ci.nsIBackgroundTasks
|
|
);
|
|
if (bts?.isBackgroundTaskMode) {
|
|
// This might need to hook into the alert service to enumerate relevant
|
|
// persistent native notifications.
|
|
return false;
|
|
}
|
|
|
|
let window = lazy.BrowserWindowTracker.getTopWindow();
|
|
|
|
// Technically this doesn't mean we have active notifications,
|
|
// but because we use !activeNotifications to check for conflicts, this should return true
|
|
if (!window) {
|
|
return true;
|
|
}
|
|
|
|
if (
|
|
window.gURLBar?.view.isOpen ||
|
|
window.gNotificationBox?.currentNotification ||
|
|
window.gBrowser.getNotificationBox()?.currentNotification
|
|
) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
},
|
|
|
|
get isMajorUpgrade() {
|
|
return lazy.BrowserHandler.majorUpgrade;
|
|
},
|
|
|
|
get hasActiveEnterprisePolicies() {
|
|
return Services.policies.status === Services.policies.ACTIVE;
|
|
},
|
|
|
|
get userMonthlyActivity() {
|
|
return QueryCache.queries.UserMonthlyActivity.get();
|
|
},
|
|
|
|
get doesAppNeedPin() {
|
|
return QueryCache.getters.doesAppNeedPin.get();
|
|
},
|
|
|
|
get doesAppNeedPrivatePin() {
|
|
return QueryCache.getters.doesAppNeedPrivatePin.get();
|
|
},
|
|
};
|
|
|
|
const ASRouterTargeting = {
|
|
Environment: TargetingGetters,
|
|
|
|
/**
|
|
* Snapshot the current targeting environment.
|
|
*
|
|
* Asynchronous getters are handled. Getters that throw or reject
|
|
* are ignored.
|
|
*
|
|
* @param {object} target - the environment to snapshot.
|
|
* @return {object} snapshot of target with `environment` object and `version`
|
|
* integer.
|
|
*/
|
|
async getEnvironmentSnapshot(target = ASRouterTargeting.Environment) {
|
|
// One promise for each named property. Label promises with property name.
|
|
let promises = Object.keys(target).map(async name => [
|
|
name,
|
|
await target[name],
|
|
]);
|
|
|
|
// Ignore properties that are rejected.
|
|
let results = await Promise.allSettled(promises);
|
|
|
|
let environment = {};
|
|
for (let result of results) {
|
|
if (result.status === "fulfilled") {
|
|
let [name, value] = result.value;
|
|
environment[name] = value;
|
|
}
|
|
}
|
|
|
|
// Should we need to migrate in the future.
|
|
const snapshot = { environment, version: 1 };
|
|
|
|
return snapshot;
|
|
},
|
|
|
|
isTriggerMatch(trigger = {}, candidateMessageTrigger = {}) {
|
|
if (trigger.id !== candidateMessageTrigger.id) {
|
|
return false;
|
|
} else if (
|
|
!candidateMessageTrigger.params &&
|
|
!candidateMessageTrigger.patterns
|
|
) {
|
|
return true;
|
|
}
|
|
|
|
if (!trigger.param) {
|
|
return false;
|
|
}
|
|
|
|
return (
|
|
(candidateMessageTrigger.params &&
|
|
trigger.param.host &&
|
|
candidateMessageTrigger.params.includes(trigger.param.host)) ||
|
|
(candidateMessageTrigger.params &&
|
|
trigger.param.type &&
|
|
candidateMessageTrigger.params.filter(t => t === trigger.param.type)
|
|
.length) ||
|
|
(candidateMessageTrigger.params &&
|
|
trigger.param.type &&
|
|
candidateMessageTrigger.params.filter(
|
|
t => (t & trigger.param.type) === t
|
|
).length) ||
|
|
(candidateMessageTrigger.patterns &&
|
|
trigger.param.url &&
|
|
new MatchPatternSet(candidateMessageTrigger.patterns).matches(
|
|
trigger.param.url
|
|
))
|
|
);
|
|
},
|
|
|
|
/**
|
|
* getCachedEvaluation - Return a cached jexl evaluation if available
|
|
*
|
|
* @param {string} targeting JEXL expression to lookup
|
|
* @returns {obj|null} Object with value result or null if not available
|
|
*/
|
|
getCachedEvaluation(targeting) {
|
|
if (jexlEvaluationCache.has(targeting)) {
|
|
const { timestamp, value } = jexlEvaluationCache.get(targeting);
|
|
if (Date.now() - timestamp <= CACHE_EXPIRATION) {
|
|
return { value };
|
|
}
|
|
jexlEvaluationCache.delete(targeting);
|
|
}
|
|
|
|
return null;
|
|
},
|
|
|
|
/**
|
|
* checkMessageTargeting - Checks is a message's targeting parameters are satisfied
|
|
*
|
|
* @param {*} message An AS router message
|
|
* @param {obj} targetingContext a TargetingContext instance complete with eval environment
|
|
* @param {func} onError A function to handle errors (takes two params; error, message)
|
|
* @param {boolean} shouldCache Should the JEXL evaluations be cached and reused.
|
|
* @returns
|
|
*/
|
|
async checkMessageTargeting(message, targetingContext, onError, shouldCache) {
|
|
lazy.ASRouterPreferences.console.debug(
|
|
"in checkMessageTargeting, arguments = ",
|
|
Array.from(arguments) // eslint-disable-line prefer-rest-params
|
|
);
|
|
|
|
// If no targeting is specified,
|
|
if (!message.targeting) {
|
|
return true;
|
|
}
|
|
let result;
|
|
try {
|
|
if (shouldCache) {
|
|
result = this.getCachedEvaluation(message.targeting);
|
|
if (result) {
|
|
return result.value;
|
|
}
|
|
}
|
|
// Used to report the source of the targeting error in the case of
|
|
// undesired events
|
|
targetingContext.setTelemetrySource(message.id);
|
|
result = await targetingContext.evalWithDefault(message.targeting);
|
|
if (shouldCache) {
|
|
jexlEvaluationCache.set(message.targeting, {
|
|
timestamp: Date.now(),
|
|
value: result,
|
|
});
|
|
}
|
|
} catch (error) {
|
|
if (onError) {
|
|
onError(error, message);
|
|
}
|
|
Cu.reportError(error);
|
|
result = false;
|
|
}
|
|
return result;
|
|
},
|
|
|
|
_isMessageMatch(
|
|
message,
|
|
trigger,
|
|
targetingContext,
|
|
onError,
|
|
shouldCache = false
|
|
) {
|
|
return (
|
|
message &&
|
|
(trigger
|
|
? this.isTriggerMatch(trigger, message.trigger)
|
|
: !message.trigger) &&
|
|
// If a trigger expression was passed to this function, the message should match it.
|
|
// Otherwise, we should choose a message with no trigger property (i.e. a message that can show up at any time)
|
|
this.checkMessageTargeting(
|
|
message,
|
|
targetingContext,
|
|
onError,
|
|
shouldCache
|
|
)
|
|
);
|
|
},
|
|
|
|
/**
|
|
* findMatchingMessage - Given an array of messages, returns one message
|
|
* whos targeting expression evaluates to true
|
|
*
|
|
* @param {Array<Message>} messages An array of AS router messages
|
|
* @param {trigger} string A trigger expression if a message for that trigger is desired
|
|
* @param {obj|null} context A FilterExpression context. Defaults to TargetingGetters above.
|
|
* @param {func} onError A function to handle errors (takes two params; error, message)
|
|
* @param {func} ordered An optional param when true sort message by order specified in message
|
|
* @param {boolean} shouldCache Should the JEXL evaluations be cached and reused.
|
|
* @param {boolean} returnAll Should we return all matching messages, not just the first one found.
|
|
* @returns {obj|Array<Message>} If returnAll is false, a single message. If returnAll is true, an array of messages.
|
|
*/
|
|
async findMatchingMessage({
|
|
messages,
|
|
trigger = {},
|
|
context = {},
|
|
onError,
|
|
ordered = false,
|
|
shouldCache = false,
|
|
returnAll = false,
|
|
}) {
|
|
const sortedMessages = getSortedMessages(messages, { ordered });
|
|
lazy.ASRouterPreferences.console.debug(
|
|
"in findMatchingMessage, sortedMessages = ",
|
|
sortedMessages
|
|
);
|
|
const matching = returnAll ? [] : null;
|
|
const targetingContext = new lazy.TargetingContext(
|
|
lazy.TargetingContext.combineContexts(
|
|
context,
|
|
this.Environment,
|
|
trigger.context || {}
|
|
)
|
|
);
|
|
|
|
const isMatch = candidate =>
|
|
this._isMessageMatch(
|
|
candidate,
|
|
trigger,
|
|
targetingContext,
|
|
onError,
|
|
shouldCache
|
|
);
|
|
|
|
for (const candidate of sortedMessages) {
|
|
if (await isMatch(candidate)) {
|
|
// If not returnAll, we should return the first message we find that matches.
|
|
if (!returnAll) {
|
|
return candidate;
|
|
}
|
|
|
|
matching.push(candidate);
|
|
}
|
|
}
|
|
return matching;
|
|
},
|
|
};
|
|
|
|
const EXPORTED_SYMBOLS = [
|
|
"ASRouterTargeting",
|
|
"QueryCache",
|
|
"CachedTargetingGetter",
|
|
"getSortedMessages",
|
|
];
|