665 строки
22 KiB
JavaScript
665 строки
22 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* globals Services */
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"use strict";
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ChromeUtils.import("resource://gre/modules/Services.jsm");
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ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
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const {actionTypes: at, actionUtils: au} = ChromeUtils.import("resource://activity-stream/common/Actions.jsm", {});
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const {Prefs} = ChromeUtils.import("resource://activity-stream/lib/ActivityStreamPrefs.jsm", {});
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const {classifySite} = ChromeUtils.import("resource://activity-stream/lib/SiteClassifier.jsm", {});
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ChromeUtils.defineModuleGetter(this, "ASRouterPreferences",
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"resource://activity-stream/lib/ASRouterPreferences.jsm");
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ChromeUtils.defineModuleGetter(this, "perfService",
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"resource://activity-stream/common/PerfService.jsm");
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ChromeUtils.defineModuleGetter(this, "PingCentre",
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"resource:///modules/PingCentre.jsm");
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ChromeUtils.defineModuleGetter(this, "UTEventReporting",
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"resource://activity-stream/lib/UTEventReporting.jsm");
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ChromeUtils.defineModuleGetter(this, "UpdateUtils",
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"resource://gre/modules/UpdateUtils.jsm");
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ChromeUtils.defineModuleGetter(this, "HomePage",
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"resource:///modules/HomePage.jsm");
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ChromeUtils.defineModuleGetter(this, "ExtensionSettingsStore",
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"resource://gre/modules/ExtensionSettingsStore.jsm");
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XPCOMUtils.defineLazyServiceGetters(this, {
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gUUIDGenerator: ["@mozilla.org/uuid-generator;1", "nsIUUIDGenerator"],
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aboutNewTabService: ["@mozilla.org/browser/aboutnewtab-service;1", "nsIAboutNewTabService"],
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});
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const ACTIVITY_STREAM_ID = "activity-stream";
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const ACTIVITY_STREAM_ENDPOINT_PREF = "browser.newtabpage.activity-stream.telemetry.ping.endpoint";
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const ACTIVITY_STREAM_ROUTER_ID = "activity-stream-router";
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// This is a mapping table between the user preferences and its encoding code
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const USER_PREFS_ENCODING = {
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"showSearch": 1 << 0,
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"feeds.topsites": 1 << 1,
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"feeds.section.topstories": 1 << 2,
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"feeds.section.highlights": 1 << 3,
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"feeds.snippets": 1 << 4,
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"showSponsored": 1 << 5,
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};
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const PREF_IMPRESSION_ID = "impressionId";
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const TELEMETRY_PREF = "telemetry";
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const EVENTS_TELEMETRY_PREF = "telemetry.ut.events";
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this.TelemetryFeed = class TelemetryFeed {
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constructor(options) {
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this.sessions = new Map();
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this._prefs = new Prefs();
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this._impressionId = this.getOrCreateImpressionId();
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this.telemetryEnabled = this._prefs.get(TELEMETRY_PREF);
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this.eventTelemetryEnabled = this._prefs.get(EVENTS_TELEMETRY_PREF);
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this._aboutHomeSeen = false;
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this._onTelemetryPrefChange = this._onTelemetryPrefChange.bind(this);
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this._prefs.observe(TELEMETRY_PREF, this._onTelemetryPrefChange);
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this._onEventsTelemetryPrefChange = this._onEventsTelemetryPrefChange.bind(this);
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this._prefs.observe(EVENTS_TELEMETRY_PREF, this._onEventsTelemetryPrefChange);
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this._classifySite = classifySite;
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}
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init() {
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Services.obs.addObserver(this.browserOpenNewtabStart, "browser-open-newtab-start");
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}
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getOrCreateImpressionId() {
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let impressionId = this._prefs.get(PREF_IMPRESSION_ID);
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if (!impressionId) {
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impressionId = String(gUUIDGenerator.generateUUID());
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this._prefs.set(PREF_IMPRESSION_ID, impressionId);
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}
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return impressionId;
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}
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browserOpenNewtabStart() {
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perfService.mark("browser-open-newtab-start");
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}
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setLoadTriggerInfo(port) {
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// XXX note that there is a race condition here; we're assuming that no
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// other tab will be interleaving calls to browserOpenNewtabStart and
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// when at.NEW_TAB_INIT gets triggered by RemotePages and calls this
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// method. For manually created windows, it's hard to imagine us hitting
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// this race condition.
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//
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// However, for session restore, where multiple windows with multiple tabs
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// might be restored much closer together in time, it's somewhat less hard,
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// though it should still be pretty rare.
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//
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// The fix to this would be making all of the load-trigger notifications
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// return some data with their notifications, and somehow propagate that
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// data through closures into the tab itself so that we could match them
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//
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// As of this writing (very early days of system add-on perf telemetry),
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// the hypothesis is that hitting this race should be so rare that makes
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// more sense to live with the slight data inaccuracy that it would
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// introduce, rather than doing the correct but complicated thing. It may
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// well be worth reexamining this hypothesis after we have more experience
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// with the data.
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let data_to_save;
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try {
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data_to_save = {
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load_trigger_ts: perfService.getMostRecentAbsMarkStartByName("browser-open-newtab-start"),
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load_trigger_type: "menu_plus_or_keyboard",
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};
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} catch (e) {
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// if no mark was returned, we have nothing to save
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return;
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}
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this.saveSessionPerfData(port, data_to_save);
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}
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_onTelemetryPrefChange(prefVal) {
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this.telemetryEnabled = prefVal;
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}
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_onEventsTelemetryPrefChange(prefVal) {
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this.eventTelemetryEnabled = prefVal;
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}
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/**
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* Lazily initialize PingCentre for Activity Stream to send pings
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*/
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get pingCentre() {
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Object.defineProperty(this, "pingCentre",
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{
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value: new PingCentre({
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topic: ACTIVITY_STREAM_ID,
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overrideEndpointPref: ACTIVITY_STREAM_ENDPOINT_PREF,
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}),
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});
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return this.pingCentre;
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}
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/**
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* Lazily initialize a PingCentre client for Activity Stream Router to send pings.
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*
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* Unlike the PingCentre client for Activity Stream, Activity Stream Router
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* uses a separate client with the standard PingCentre endpoint.
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*/
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get pingCentreForASRouter() {
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Object.defineProperty(this, "pingCentreForASRouter",
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{value: new PingCentre({topic: ACTIVITY_STREAM_ROUTER_ID})});
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return this.pingCentreForASRouter;
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}
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/**
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* Lazily initialize UTEventReporting to send pings
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*/
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get utEvents() {
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Object.defineProperty(this, "utEvents", {value: new UTEventReporting()});
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return this.utEvents;
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}
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/**
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* Get encoded user preferences, multiple prefs will be combined via bitwise OR operator
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*/
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get userPreferences() {
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let prefs = 0;
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for (const pref of Object.keys(USER_PREFS_ENCODING)) {
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if (this._prefs.get(pref)) {
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prefs |= USER_PREFS_ENCODING[pref];
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}
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}
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return prefs;
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}
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/**
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* Check if it is in the CFR experiment cohort. ASRouterPreferences lazily parses AS router pref.
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*/
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get isInCFRCohort() {
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for (let provider of ASRouterPreferences.providers) {
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if (provider.id === "cfr" && provider.enabled && provider.cohort) {
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return true;
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}
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}
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return false;
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}
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/**
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* addSession - Start tracking a new session
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*
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* @param {string} id the portID of the open session
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* @param {string} the URL being loaded for this session (optional)
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* @return {obj} Session object
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*/
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addSession(id, url) {
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// XXX refactor to use setLoadTriggerInfo or saveSessionPerfData
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// "unexpected" will be overwritten when appropriate
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let load_trigger_type = "unexpected";
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let load_trigger_ts;
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if (!this._aboutHomeSeen && url === "about:home") {
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this._aboutHomeSeen = true;
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// XXX note that this will be incorrectly set in the following cases:
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// session_restore following by clicking on the toolbar button,
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// or someone who has changed their default home page preference to
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// something else and later clicks the toolbar. It will also be
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// incorrectly unset if someone changes their "Home Page" preference to
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// about:newtab.
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//
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// That said, the ratio of these mistakes to correct cases should
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// be very small, and these issues should follow away as we implement
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// the remaining load_trigger_type values for about:home in issue 3556.
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//
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// XXX file a bug to implement remaining about:home cases so this
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// problem will go away and link to it here.
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load_trigger_type = "first_window_opened";
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// The real perceived trigger of first_window_opened is the OS-level
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// clicking of the icon. We use perfService.timeOrigin because it's the
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// earliest number on this time scale that's easy to get.; We could
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// actually use 0, but maybe that could be before the browser started?
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// [bug 1401406](https://bugzilla.mozilla.org/show_bug.cgi?id=1401406)
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// getting sorted out may help clarify. Even better, presumably, would be
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// to use the process creation time for the main process, which is
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// available, but somewhat harder to get. However, these are all more or
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// less proxies for the same thing, so it's not clear how much the better
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// numbers really matter, since we (activity stream) only control a
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// relatively small amount of the code that's executing between the
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// OS-click and when the first <browser> element starts loading. That
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// said, it's conceivable that it could help us catch regressions in the
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// number of cycles early chrome code takes to execute, but it's likely
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// that there are more direct ways to measure that.
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load_trigger_ts = perfService.timeOrigin;
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}
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const session = {
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session_id: String(gUUIDGenerator.generateUUID()),
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// "unknown" will be overwritten when appropriate
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page: url ? url : "unknown",
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perf: {
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load_trigger_type,
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is_preloaded: false,
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is_prerendered: false,
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},
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};
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if (load_trigger_ts) {
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session.perf.load_trigger_ts = load_trigger_ts;
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}
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this.sessions.set(id, session);
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return session;
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}
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/**
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* endSession - Stop tracking a session
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*
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* @param {string} portID the portID of the session that just closed
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*/
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endSession(portID) {
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const session = this.sessions.get(portID);
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if (!session) {
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// It's possible the tab was never visible – in which case, there was no user session.
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return;
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}
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if (session.perf.visibility_event_rcvd_ts) {
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session.session_duration = Math.round(perfService.absNow() - session.perf.visibility_event_rcvd_ts);
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}
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let sessionEndEvent = this.createSessionEndEvent(session);
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this.sendEvent(sessionEndEvent);
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this.sendUTEvent(sessionEndEvent, this.utEvents.sendSessionEndEvent);
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this.sessions.delete(portID);
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}
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/**
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* handlePagePrerendered - Set the session as prerendered
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*
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* @param {string} portID the portID of the target session
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*/
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handlePagePrerendered(portID) {
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const session = this.sessions.get(portID);
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if (!session) {
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// It's possible the tab was never visible – in which case, there was no user session.
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return;
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}
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session.perf.is_prerendered = true;
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}
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/**
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* handleNewTabInit - Handle NEW_TAB_INIT, which creates a new session and sets the a flag
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* for session.perf based on whether or not this new tab is preloaded
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*
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* @param {obj} action the Action object
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*/
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handleNewTabInit(action) {
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const session = this.addSession(au.getPortIdOfSender(action), action.data.url);
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session.perf.is_preloaded = action.data.browser.getAttribute("preloadedState") === "preloaded";
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}
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/**
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* createPing - Create a ping with common properties
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*
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* @param {string} id The portID of the session, if a session is relevant (optional)
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* @return {obj} A telemetry ping
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*/
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createPing(portID) {
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const ping = {
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addon_version: Services.appinfo.appBuildID,
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locale: Services.locale.appLocaleAsLangTag,
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user_prefs: this.userPreferences,
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};
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// If the ping is part of a user session, add session-related info
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if (portID) {
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const session = this.sessions.get(portID) || this.addSession(portID);
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Object.assign(ping, {session_id: session.session_id});
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if (session.page) {
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Object.assign(ping, {page: session.page});
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}
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}
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return ping;
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}
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/**
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* createImpressionStats - Create a ping for an impression stats
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*
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* @param {ob} action The object with data to be included in the ping.
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* For some user interactions.
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* @return {obj} A telemetry ping
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*/
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createImpressionStats(action) {
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return Object.assign(
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this.createPing(au.getPortIdOfSender(action)),
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action.data,
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{
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action: "activity_stream_impression_stats",
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impression_id: this._impressionId,
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client_id: "n/a",
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session_id: "n/a",
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}
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);
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}
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createUserEvent(action) {
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return Object.assign(
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this.createPing(au.getPortIdOfSender(action)),
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action.data,
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{action: "activity_stream_user_event"}
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);
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}
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createUndesiredEvent(action) {
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return Object.assign(
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this.createPing(au.getPortIdOfSender(action)),
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{value: 0}, // Default value
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action.data,
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{action: "activity_stream_undesired_event"}
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);
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}
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createPerformanceEvent(action) {
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return Object.assign(
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this.createPing(),
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action.data,
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{action: "activity_stream_performance_event"}
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);
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}
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createSessionEndEvent(session) {
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return Object.assign(
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this.createPing(),
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{
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session_id: session.session_id,
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page: session.page,
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session_duration: session.session_duration,
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action: "activity_stream_session",
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perf: session.perf,
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}
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);
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}
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/**
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* Create a ping for AS router event. The client_id is set to "n/a" by default,
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* different component can override this by its own telemetry collection policy.
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*/
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createASRouterEvent(action) {
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const ping = {
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client_id: "n/a",
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addon_version: Services.appinfo.appBuildID,
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locale: Services.locale.appLocaleAsLangTag,
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impression_id: this._impressionId,
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};
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const event = Object.assign(ping, action.data);
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if (event.action === "cfr_user_event") {
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return this.applyCFRPolicy(event);
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} else if (event.action === "snippets_user_event") {
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return this.applySnippetsPolicy(event);
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} else if (event.action === "onboarding_user_event") {
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return this.applyOnboardingPolicy(event);
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}
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return event;
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}
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/**
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* Per Bug 1484035, CFR metrics comply with following policies:
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* 1). In release, it collects impression_id, and treats bucket_id as message_id
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* 2). In prerelease, it collects client_id and message_id
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* 3). In shield experiments conducted in release, it collects client_id and message_id
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*/
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applyCFRPolicy(ping) {
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if (UpdateUtils.getUpdateChannel(true) === "release" && !this.isInCFRCohort) {
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ping.message_id = ping.bucket_id || "n/a";
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ping.client_id = "n/a";
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ping.impression_id = this._impressionId;
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} else {
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ping.impression_id = "n/a";
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// Ping-centre client will fill in the client_id if it's not provided in the ping.
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delete ping.client_id;
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}
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// bucket_id is no longer needed
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delete ping.bucket_id;
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return ping;
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}
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/**
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* Per Bug 1485069, all the metrics for Snippets in AS router use client_id in
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* all the release channels
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*/
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applySnippetsPolicy(ping) {
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// Ping-centre client will fill in the client_id if it's not provided in the ping.
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delete ping.client_id;
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ping.impression_id = "n/a";
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return ping;
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}
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/**
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* Per Bug 1482134, all the metrics for Onboarding in AS router use client_id in
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* all the release channels
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*/
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applyOnboardingPolicy(ping) {
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// Ping-centre client will fill in the client_id if it's not provided in the ping.
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delete ping.client_id;
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ping.impression_id = "n/a";
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return ping;
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}
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sendEvent(event_object) {
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if (this.telemetryEnabled) {
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this.pingCentre.sendPing(event_object,
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{filter: ACTIVITY_STREAM_ID});
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}
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}
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sendUTEvent(event_object, eventFunction) {
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if (this.telemetryEnabled && this.eventTelemetryEnabled) {
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eventFunction(event_object);
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}
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}
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sendASRouterEvent(event_object) {
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if (this.telemetryEnabled) {
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this.pingCentreForASRouter.sendPing(event_object,
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{filter: ACTIVITY_STREAM_ID});
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}
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}
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handleImpressionStats(action) {
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this.sendEvent(this.createImpressionStats(action));
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}
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handleUserEvent(action) {
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let userEvent = this.createUserEvent(action);
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this.sendEvent(userEvent);
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this.sendUTEvent(userEvent, this.utEvents.sendUserEvent);
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}
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handleASRouterUserEvent(action) {
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let event = this.createASRouterEvent(action);
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this.sendASRouterEvent(event);
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}
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handleUndesiredEvent(action) {
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this.sendEvent(this.createUndesiredEvent(action));
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}
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async sendPageTakeoverData() {
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if (this.telemetryEnabled) {
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const value = {};
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let newtabAffected = false;
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let homeAffected = false;
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// Check whether or not about:home and about:newtab are set to a custom URL.
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// If so, classify them.
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if (Services.prefs.getBoolPref("browser.newtabpage.enabled") &&
|
|
aboutNewTabService.overridden &&
|
|
!aboutNewTabService.newTabURL.startsWith("moz-extension://")) {
|
|
value.newtab_url_category = await this._classifySite(aboutNewTabService.newTabURL);
|
|
newtabAffected = true;
|
|
}
|
|
// Check if the newtab page setting is controlled by an extension.
|
|
await ExtensionSettingsStore.initialize();
|
|
const newtabExtensionInfo = ExtensionSettingsStore.getSetting("url_overrides", "newTabURL");
|
|
if (newtabExtensionInfo && newtabExtensionInfo.id) {
|
|
value.newtab_extension_id = newtabExtensionInfo.id;
|
|
newtabAffected = true;
|
|
}
|
|
|
|
const homePageURL = HomePage.get();
|
|
if (!["about:home", "about:blank"].includes(homePageURL) &&
|
|
!homePageURL.startsWith("moz-extension://")) {
|
|
value.home_url_category = await this._classifySite(homePageURL);
|
|
homeAffected = true;
|
|
}
|
|
const homeExtensionInfo = ExtensionSettingsStore.getSetting("prefs", "homepage_override");
|
|
if (homeExtensionInfo && homeExtensionInfo.id) {
|
|
value.home_extension_id = homeExtensionInfo.id;
|
|
homeAffected = true;
|
|
}
|
|
|
|
let page;
|
|
if (newtabAffected && homeAffected) {
|
|
page = "both";
|
|
} else if (newtabAffected) {
|
|
page = "about:newtab";
|
|
} else if (homeAffected) {
|
|
page = "about:home";
|
|
}
|
|
|
|
if (page) {
|
|
const event = Object.assign(
|
|
this.createPing(),
|
|
{
|
|
action: "activity_stream_user_event",
|
|
event: "PAGE_TAKEOVER_DATA",
|
|
value,
|
|
page,
|
|
session_id: "n/a",
|
|
},
|
|
);
|
|
this.sendEvent(event);
|
|
}
|
|
}
|
|
}
|
|
|
|
onAction(action) {
|
|
switch (action.type) {
|
|
case at.INIT:
|
|
this.init();
|
|
this.sendPageTakeoverData();
|
|
break;
|
|
case at.NEW_TAB_INIT:
|
|
this.handleNewTabInit(action);
|
|
break;
|
|
case at.NEW_TAB_UNLOAD:
|
|
this.endSession(au.getPortIdOfSender(action));
|
|
break;
|
|
case at.PAGE_PRERENDERED:
|
|
this.handlePagePrerendered(au.getPortIdOfSender(action));
|
|
break;
|
|
case at.SAVE_SESSION_PERF_DATA:
|
|
this.saveSessionPerfData(au.getPortIdOfSender(action), action.data);
|
|
break;
|
|
case at.TELEMETRY_IMPRESSION_STATS:
|
|
this.handleImpressionStats(action);
|
|
break;
|
|
case at.TELEMETRY_UNDESIRED_EVENT:
|
|
this.handleUndesiredEvent(action);
|
|
break;
|
|
case at.TELEMETRY_USER_EVENT:
|
|
this.handleUserEvent(action);
|
|
break;
|
|
case at.AS_ROUTER_TELEMETRY_USER_EVENT:
|
|
this.handleASRouterUserEvent(action);
|
|
break;
|
|
case at.TELEMETRY_PERFORMANCE_EVENT:
|
|
this.sendEvent(this.createPerformanceEvent(action));
|
|
break;
|
|
case at.UNINIT:
|
|
this.uninit();
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Take all enumerable members of the data object and merge them into
|
|
* the session.perf object for the given port, so that it is sent to the
|
|
* server when the session ends. All members of the data object should
|
|
* be valid values of the perf object, as defined in pings.js and the
|
|
* data*.md documentation.
|
|
*
|
|
* @note Any existing keys with the same names already in the
|
|
* session perf object will be overwritten by values passed in here.
|
|
*
|
|
* @param {String} port The session with which this is associated
|
|
* @param {Object} data The perf data to be
|
|
*/
|
|
saveSessionPerfData(port, data) {
|
|
// XXX should use try/catch and send a bad state indicator if this
|
|
// get blows up.
|
|
let session = this.sessions.get(port);
|
|
|
|
// XXX Partial workaround for #3118; avoids the worst incorrect associations
|
|
// of times with browsers, by associating the load trigger with the
|
|
// visibility event as the user is most likely associating the trigger to
|
|
// the tab just shown. This helps avoid associating with a preloaded
|
|
// browser as those don't get the event until shown. Better fix for more
|
|
// cases forthcoming.
|
|
//
|
|
// XXX the about:home check (and the corresponding test) should go away
|
|
// once the load_trigger stuff in addSession is refactored into
|
|
// setLoadTriggerInfo.
|
|
//
|
|
if (data.visibility_event_rcvd_ts && session.page !== "about:home") {
|
|
this.setLoadTriggerInfo(port);
|
|
}
|
|
|
|
Object.assign(session.perf, data);
|
|
}
|
|
|
|
uninit() {
|
|
try {
|
|
Services.obs.removeObserver(this.browserOpenNewtabStart,
|
|
"browser-open-newtab-start");
|
|
} catch (e) {
|
|
// Operation can fail when uninit is called before
|
|
// init has finished setting up the observer
|
|
}
|
|
|
|
// Only uninit if the getter has initialized it
|
|
if (Object.prototype.hasOwnProperty.call(this, "pingCentre")) {
|
|
this.pingCentre.uninit();
|
|
}
|
|
if (Object.prototype.hasOwnProperty.call(this, "utEvents")) {
|
|
this.utEvents.uninit();
|
|
}
|
|
if (Object.prototype.hasOwnProperty.call(this, "pingCentreForASRouter")) {
|
|
this.pingCentreForASRouter.uninit();
|
|
}
|
|
|
|
try {
|
|
this._prefs.ignore(TELEMETRY_PREF, this._onTelemetryPrefChange);
|
|
this._prefs.ignore(EVENTS_TELEMETRY_PREF, this._onEventsTelemetryPrefChange);
|
|
} catch (e) {
|
|
Cu.reportError(e);
|
|
}
|
|
// TODO: Send any unfinished sessions
|
|
}
|
|
};
|
|
|
|
const EXPORTED_SYMBOLS = [
|
|
"TelemetryFeed",
|
|
"USER_PREFS_ENCODING",
|
|
"PREF_IMPRESSION_ID",
|
|
"TELEMETRY_PREF",
|
|
"EVENTS_TELEMETRY_PREF",
|
|
];
|