mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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274 lines
8.8 KiB
JavaScript
274 lines
8.8 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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"use strict";
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const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://services-common/preferences.js");
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Cu.import("resource://services-common/utils.js");
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const ROOT_BRANCH = "datareporting.";
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const POLICY_BRANCH = ROOT_BRANCH + "policy.";
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const SESSIONS_BRANCH = ROOT_BRANCH + "sessions.";
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const HEALTHREPORT_BRANCH = ROOT_BRANCH + "healthreport.";
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const HEALTHREPORT_LOGGING_BRANCH = HEALTHREPORT_BRANCH + "logging.";
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const DEFAULT_LOAD_DELAY_MSEC = 10 * 1000;
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const DEFAULT_LOAD_DELAY_FIRST_RUN_MSEC = 60 * 1000;
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/**
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* The Firefox Health Report XPCOM service.
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*
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* External consumers will be interested in the "reporter" property of this
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* service. This property is a `HealthReporter` instance that powers the
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* service. The property may be null if the Health Report service is not
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* enabled.
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*
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* EXAMPLE USAGE
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* =============
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*
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* let reporter = Cc["@mozilla.org/datareporting/service;1"]
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* .getService(Ci.nsISupports)
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* .wrappedJSObject
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* .healthReporter;
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*
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* if (reporter.haveRemoteData) {
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* // ...
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* }
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*
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* IMPLEMENTATION NOTES
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* ====================
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*
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* In order to not adversely impact application start time, the `HealthReporter`
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* instance is not initialized until a few seconds after "final-ui-startup."
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* The exact delay is configurable via preferences so it can be adjusted with
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* a hotfix extension if the default value is ever problematic. Because of the
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* overhead with the initial creation of the database, the first run is delayed
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* even more than subsequent runs. This does mean that the first moments of
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* browser activity may be lost by FHR.
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*
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* Shutdown of the `HealthReporter` instance is handled completely within the
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* instance (it registers observers on initialization). See the notes on that
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* type for more.
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*/
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this.DataReportingService = function () {
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this.wrappedJSObject = this;
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this._quitting = false;
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this._os = Cc["@mozilla.org/observer-service;1"]
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.getService(Ci.nsIObserverService);
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}
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DataReportingService.prototype = Object.freeze({
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classID: Components.ID("{41f6ae36-a79f-4613-9ac3-915e70f83789}"),
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
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Ci.nsISupportsWeakReference]),
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//---------------------------------------------
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// Start of policy listeners.
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//---------------------------------------------
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/**
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* Called when policy requests data upload.
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*/
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onRequestDataUpload: function (request) {
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if (!this.healthReporter) {
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return;
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}
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this.healthReporter.requestDataUpload(request);
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},
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onNotifyDataPolicy: function (request) {
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Observers.notify("datareporting:notify-data-policy:request", request);
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},
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onRequestRemoteDelete: function (request) {
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if (!this.healthReporter) {
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return;
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}
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this.healthReporter.deleteRemoteData(request);
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},
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//---------------------------------------------
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// End of policy listeners.
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//---------------------------------------------
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observe: function observe(subject, topic, data) {
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switch (topic) {
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case "app-startup":
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this._os.addObserver(this, "profile-after-change", true);
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break;
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case "profile-after-change":
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this._os.removeObserver(this, "profile-after-change");
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this._os.addObserver(this, "sessionstore-windows-restored", true);
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this._prefs = new Preferences(HEALTHREPORT_BRANCH);
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// We don't initialize the sessions recorder unless Health Report is
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// around to provide pruning of data.
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//
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// FUTURE consider having the SessionsRecorder always enabled and/or
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// living in its own XPCOM service.
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if (this._prefs.get("service.enabled", true)) {
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this.sessionRecorder = new SessionRecorder(SESSIONS_BRANCH);
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this.sessionRecorder.onStartup();
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}
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// We can't interact with prefs until after the profile is present.
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let policyPrefs = new Preferences(POLICY_BRANCH);
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this.policy = new DataReportingPolicy(policyPrefs, this._prefs, this);
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break;
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case "sessionstore-windows-restored":
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this._os.removeObserver(this, "sessionstore-windows-restored");
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this._os.addObserver(this, "quit-application", false);
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this.policy.startPolling();
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// Don't initialize Firefox Health Reporter collection and submission
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// service unless it is enabled.
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if (!this._prefs.get("service.enabled", true)) {
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return;
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}
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let haveFirstRun = this._prefs.get("service.firstRun", false);
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let delayInterval;
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if (haveFirstRun) {
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delayInterval = this._prefs.get("service.loadDelayMsec") ||
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DEFAULT_LOAD_DELAY_MSEC;
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} else {
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delayInterval = this._prefs.get("service.loadDelayFirstRunMsec") ||
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DEFAULT_LOAD_DELAY_FIRST_RUN_MSEC;
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}
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// Delay service loading a little more so things have an opportunity
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// to cool down first.
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this.timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
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this.timer.initWithCallback({
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notify: function notify() {
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delete this.timer;
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// There could be a race between "quit-application" firing and
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// this callback being invoked. We close that door.
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if (this._quitting) {
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return;
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}
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// Side effect: instantiates the reporter instance if not already
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// accessed.
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//
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// The instance installs its own shutdown observers. So, we just
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// fire and forget: it will clean itself up.
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let reporter = this.healthReporter;
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}.bind(this),
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}, delayInterval, this.timer.TYPE_ONE_SHOT);
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break;
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case "quit-application":
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this._os.removeObserver(this, "quit-application");
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this._quitting = true;
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// Shutdown doesn't clear pending timers. So, we need to explicitly
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// cancel our health reporter initialization timer or else it will
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// attempt initialization after shutdown has commenced. This would
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// likely lead to stalls or crashes.
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if (this.timer) {
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this.timer.cancel();
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}
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this.policy.stopPolling();
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break;
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}
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},
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/**
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* The HealthReporter instance associated with this service.
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*
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* If the service is disabled, this will return null.
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*
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* The obtained instance may not be fully initialized.
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*/
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get healthReporter() {
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if (!this._prefs.get("service.enabled", true)) {
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return null;
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}
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if ("_healthReporter" in this) {
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return this._healthReporter;
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}
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try {
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this._loadHealthReporter();
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} catch (ex) {
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this._healthReporter = null;
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}
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return this._healthReporter;
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},
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_loadHealthReporter: function () {
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let ns = {};
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// Lazy import so application startup isn't adversely affected.
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Cu.import("resource://gre/modules/Task.jsm", ns);
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Cu.import("resource://gre/modules/HealthReport.jsm", ns);
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Cu.import("resource://services-common/log4moz.js", ns);
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// How many times will we rewrite this code before rolling it up into a
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// generic module? See also bug 451283.
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const LOGGERS = [
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"Services.DataReporting",
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"Services.HealthReport",
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"Services.Metrics",
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"Services.BagheeraClient",
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"Sqlite.Connection.healthreport",
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];
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let loggingPrefs = new Preferences(HEALTHREPORT_LOGGING_BRANCH);
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if (loggingPrefs.get("consoleEnabled", true)) {
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let level = loggingPrefs.get("consoleLevel", "Warn");
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let appender = new ns.Log4Moz.ConsoleAppender();
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appender.level = ns.Log4Moz.Level[level] || ns.Log4Moz.Level.Warn;
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for (let name of LOGGERS) {
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let logger = ns.Log4Moz.repository.getLogger(name);
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logger.addAppender(appender);
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}
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}
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// The reporter initializes in the background.
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this._healthReporter = new ns.HealthReporter(HEALTHREPORT_BRANCH,
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this.policy,
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this.sessionRecorder);
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// Wait for initialization to finish so if a shutdown occurs before init
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// has finished we don't adversely affect app startup on next run.
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this._healthReporter.onInit().then(function onInit() {
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this._prefs.set("service.firstRun", true);
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}.bind(this));
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},
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});
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory([DataReportingService]);
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#define MERGED_COMPARTMENT
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#include ../common/observers.js
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;
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#include policy.jsm
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;
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#include sessions.jsm
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;
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