The Tor Browser: browser/experiments/ExperimentsService.js@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 "use strict";

     7 const {interfaces: Ci, utils: Cu} = Components;

     9 Cu.import("resource://gre/modules/XPCOMUtils.jsm");

    10 Cu.import("resource://gre/modules/Services.jsm");

    11 Cu.import("resource://gre/modules/Preferences.jsm");

    13 XPCOMUtils.defineLazyModuleGetter(this, "Experiments",

    14                                   "resource:///modules/experiments/Experiments.jsm");

    15 XPCOMUtils.defineLazyModuleGetter(this, "OS",

    16                                   "resource://gre/modules/osfile.jsm");

    17 XPCOMUtils.defineLazyModuleGetter(this, "CommonUtils",

    18                                   "resource://services-common/utils.js");

    20 const PREF_EXPERIMENTS_ENABLED  = "experiments.enabled";

    21 const PREF_ACTIVE_EXPERIMENT    = "experiments.activeExperiment"; // whether we have an active experiment

    22 const PREF_HEALTHREPORT_ENABLED = "datareporting.healthreport.service.enabled";

    23 const PREF_TELEMETRY_ENABLED    = "toolkit.telemetry.enabled";

    24 const DELAY_INIT_MS             = 30 * 1000;

    26 XPCOMUtils.defineLazyGetter(

    27   this, "gPrefs", () => {

    28     return new Preferences();

    29   });

    31 XPCOMUtils.defineLazyGetter(

    32   this, "gExperimentsEnabled", () => {

    33     return gPrefs.get(PREF_EXPERIMENTS_ENABLED, false) &&

    34            gPrefs.get(PREF_TELEMETRY_ENABLED, false) &&

    35            gPrefs.get(PREF_HEALTHREPORT_ENABLED, false);

    36   });

    38 XPCOMUtils.defineLazyGetter(

    39   this, "gActiveExperiment", () => {

    40     return gPrefs.get(PREF_ACTIVE_EXPERIMENT);

    41   });

    43 function ExperimentsService() {

    44   this._initialized = false;

    45   this._delayedInitTimer = null;

    46 }

    48 ExperimentsService.prototype = {

    49   classID: Components.ID("{f7800463-3b97-47f9-9341-b7617e6d8d49}"),

    50   QueryInterface: XPCOMUtils.generateQI([Ci.nsITimerCallback, Ci.nsIObserver]),

    52   notify: function (timer) {

    53     if (!gExperimentsEnabled) {

    54       return;

    55     }

    56     if (OS.Constants.Path.profileDir === undefined) {

    57       throw Error("Update timer fired before profile was initialized?");

    58     }

    59     Experiments.instance().updateManifest();

    60   },

    62   _delayedInit: function () {

    63     if (!this._initialized) {

    64       this._initialized = true;

    65       Experiments.instance(); // for side effects

    66     }

    67   },

    69   observe: function (subject, topic, data) {

    70     switch (topic) {

    71       case "profile-after-change":

    72         if (gExperimentsEnabled) {

    73           Services.obs.addObserver(this, "quit-application", false);

    74           Services.obs.addObserver(this, "sessionstore-state-finalized", false);

    75           Services.obs.addObserver(this, "EM-loaded", false);

    77           if (gActiveExperiment) {

    78             this._initialized = true;

    79             Experiments.instance(); // for side effects

    80           }

    81         }

    82         break;

    83       case "sessionstore-state-finalized":

    84         if (!this._initialized) {

    85           CommonUtils.namedTimer(this._delayedInit, DELAY_INIT_MS, this, "_delayedInitTimer");

    86         }

    87         break;

    88       case "EM-loaded":

    89         if (!this._initialized) {

    90           Experiments.instance(); // for side effects

    91           this._initialized = true;

    93           if (this._delayedInitTimer) {

    94             this._delayedInitTimer.clear();

    95           }

    96         }

    97         break;

    98       case "quit-application":

    99         Services.obs.removeObserver(this, "quit-application");

   100         Services.obs.removeObserver(this, "sessionstore-state-finalized");

   101         Services.obs.removeObserver(this, "EM-loaded");

   102         if (this._delayedInitTimer) {

   103           this._delayedInitTimer.clear();

   104         }

   105         break;

   106     }

   107   },

   108 };

   110 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([ExperimentsService]);

The Tor Browser / file revision