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gecko-dev/toolkit/components/telemetry/TelemetryController.jsm

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/* -*- js-indent-level: 2; indent-tabs-mode: nil -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
const Cu = Components.utils;
const myScope = this;
Cu.import("resource://gre/modules/Log.jsm");
Cu.import("resource://gre/modules/debug.js", this);
Cu.import("resource://gre/modules/Services.jsm", this);
Cu.import("resource://gre/modules/XPCOMUtils.jsm", this);
Cu.import("resource://gre/modules/osfile.jsm", this);
Cu.import("resource://gre/modules/Promise.jsm", this);
Cu.import("resource://gre/modules/PromiseUtils.jsm", this);
Cu.import("resource://gre/modules/Task.jsm", this);
Cu.import("resource://gre/modules/DeferredTask.jsm", this);
Cu.import("resource://gre/modules/Preferences.jsm");
Cu.import("resource://gre/modules/Timer.jsm");
Cu.import("resource://gre/modules/TelemetryUtils.jsm", this);
Cu.import("resource://gre/modules/AppConstants.jsm");
const Utils = TelemetryUtils;
const LOGGER_NAME = "Toolkit.Telemetry";
const LOGGER_PREFIX = "TelemetryController::";
const PREF_BRANCH = "toolkit.telemetry.";
const PREF_BRANCH_LOG = PREF_BRANCH + "log.";
const PREF_SERVER = PREF_BRANCH + "server";
const PREF_LOG_LEVEL = PREF_BRANCH_LOG + "level";
const PREF_LOG_DUMP = PREF_BRANCH_LOG + "dump";
const PREF_CACHED_CLIENTID = PREF_BRANCH + "cachedClientID";
const PREF_FHR_UPLOAD_ENABLED = "datareporting.healthreport.uploadEnabled";
const PREF_SESSIONS_BRANCH = "datareporting.sessions.";
const PREF_UNIFIED = PREF_BRANCH + "unified";
// Whether the FHR/Telemetry unification features are enabled.
// Changing this pref requires a restart.
const IS_UNIFIED_TELEMETRY = Preferences.get(PREF_UNIFIED, false);
const PING_FORMAT_VERSION = 4;
// Delay before intializing telemetry (ms)
const TELEMETRY_DELAY = Preferences.get("toolkit.telemetry.initDelay", 60) * 1000;
// Delay before initializing telemetry if we're testing (ms)
const TELEMETRY_TEST_DELAY = 1;
// Ping types.
const PING_TYPE_MAIN = "main";
const PING_TYPE_DELETION = "deletion";
// Session ping reasons.
const REASON_GATHER_PAYLOAD = "gather-payload";
const REASON_GATHER_SUBSESSION_PAYLOAD = "gather-subsession-payload";
XPCOMUtils.defineLazyModuleGetter(this, "ClientID",
"resource://gre/modules/ClientID.jsm");
XPCOMUtils.defineLazyServiceGetter(this, "Telemetry",
"@mozilla.org/base/telemetry;1",
"nsITelemetry");
XPCOMUtils.defineLazyModuleGetter(this, "AsyncShutdown",
"resource://gre/modules/AsyncShutdown.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "TelemetryStorage",
"resource://gre/modules/TelemetryStorage.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "ThirdPartyCookieProbe",
"resource://gre/modules/ThirdPartyCookieProbe.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "TelemetryEnvironment",
"resource://gre/modules/TelemetryEnvironment.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "SessionRecorder",
"resource://gre/modules/SessionRecorder.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "UpdateUtils",
"resource://gre/modules/UpdateUtils.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "TelemetryArchive",
"resource://gre/modules/TelemetryArchive.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "TelemetrySession",
"resource://gre/modules/TelemetrySession.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "TelemetrySend",
"resource://gre/modules/TelemetrySend.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "TelemetryReportingPolicy",
"resource://gre/modules/TelemetryReportingPolicy.jsm");
/**
* Setup Telemetry logging. This function also gets called when loggin related
* preferences change.
*/
var gLogger = null;
var gLogAppenderDump = null;
function configureLogging() {
if (!gLogger) {
gLogger = Log.repository.getLogger(LOGGER_NAME);
// Log messages need to go to the browser console.
let consoleAppender = new Log.ConsoleAppender(new Log.BasicFormatter());
gLogger.addAppender(consoleAppender);
Preferences.observe(PREF_BRANCH_LOG, configureLogging);
}
// Make sure the logger keeps up with the logging level preference.
gLogger.level = Log.Level[Preferences.get(PREF_LOG_LEVEL, "Warn")];
// If enabled in the preferences, add a dump appender.
let logDumping = Preferences.get(PREF_LOG_DUMP, false);
if (logDumping != !!gLogAppenderDump) {
if (logDumping) {
gLogAppenderDump = new Log.DumpAppender(new Log.BasicFormatter());
gLogger.addAppender(gLogAppenderDump);
} else {
gLogger.removeAppender(gLogAppenderDump);
gLogAppenderDump = null;
}
}
}
/**
* This is a policy object used to override behavior for testing.
*/
var Policy = {
now: () => new Date(),
generatePingId: () => Utils.generateUUID(),
getCachedClientID: () => ClientID.getCachedClientID(),
}
this.EXPORTED_SYMBOLS = ["TelemetryController"];
this.TelemetryController = Object.freeze({
Constants: Object.freeze({
PREF_LOG_LEVEL: PREF_LOG_LEVEL,
PREF_LOG_DUMP: PREF_LOG_DUMP,
PREF_SERVER: PREF_SERVER,
}),
/**
* Used only for testing purposes.
*/
testInitLogging: function() {
configureLogging();
},
/**
* Used only for testing purposes.
*/
testReset: function() {
return Impl.reset();
},
/**
* Used only for testing purposes.
*/
testSetup: function() {
return Impl.setupTelemetry(true);
},
/**
* Used only for testing purposes.
*/
testShutdown: function() {
return Impl.shutdown();
},
/**
* Used only for testing purposes.
*/
testSetupContent: function() {
return Impl.setupContentTelemetry(true);
},
/**
* Send a notification.
*/
observe: function (aSubject, aTopic, aData) {
return Impl.observe(aSubject, aTopic, aData);
},
/**
* Submit ping payloads to Telemetry. This will assemble a complete ping, adding
* environment data, client id and some general info.
* Depending on configuration, the ping will be sent to the server (immediately or later)
* and archived locally.
*
* To identify the different pings and to be able to query them pings have a type.
* A type is a string identifier that should be unique to the type ping that is being submitted,
* it should only contain alphanumeric characters and '-' for separation, i.e. satisfy:
* /^[a-z0-9][a-z0-9-]+[a-z0-9]$/i
*
* @param {String} aType The type of the ping.
* @param {Object} aPayload The actual data payload for the ping.
* @param {Object} [aOptions] Options object.
* @param {Boolean} [aOptions.addClientId=false] true if the ping should contain the client
* id, false otherwise.
* @param {Boolean} [aOptions.addEnvironment=false] true if the ping should contain the
* environment data.
* @param {Object} [aOptions.overrideEnvironment=null] set to override the environment data.
* @returns {Promise} Test-only - a promise that resolves with the ping id once the ping is stored or sent.
*/
submitExternalPing: function(aType, aPayload, aOptions = {}) {
aOptions.addClientId = aOptions.addClientId || false;
aOptions.addEnvironment = aOptions.addEnvironment || false;
return Impl.submitExternalPing(aType, aPayload, aOptions);
},
/**
* Get the current session ping data as it would be sent out or stored.
*
* @param {bool} aSubsession Whether to get subsession data. Optional, defaults to false.
* @return {object} The current ping data if Telemetry is enabled, null otherwise.
*/
getCurrentPingData: function(aSubsession = false) {
return Impl.getCurrentPingData(aSubsession);
},
/**
* Save a ping to disk.
*
* @param {String} aType The type of the ping.
* @param {Object} aPayload The actual data payload for the ping.
* @param {Object} [aOptions] Options object.
* @param {Boolean} [aOptions.addClientId=false] true if the ping should contain the client
* id, false otherwise.
* @param {Boolean} [aOptions.addEnvironment=false] true if the ping should contain the
* environment data.
* @param {Boolean} [aOptions.overwrite=false] true overwrites a ping with the same name,
* if found.
* @param {Object} [aOptions.overrideEnvironment=null] set to override the environment data.
*
* @returns {Promise} A promise that resolves with the ping id when the ping is saved to
* disk.
*/
addPendingPing: function(aType, aPayload, aOptions = {}) {
let options = aOptions;
options.addClientId = aOptions.addClientId || false;
options.addEnvironment = aOptions.addEnvironment || false;
options.overwrite = aOptions.overwrite || false;
return Impl.addPendingPing(aType, aPayload, options);
},
/**
* Check if we have an aborted-session ping from a previous session.
* If so, submit and then remove it.
*
* @return {Promise} Promise that is resolved when the ping is saved.
*/
checkAbortedSessionPing: function() {
return Impl.checkAbortedSessionPing();
},
/**
* Save an aborted-session ping to disk without adding it to the pending pings.
*
* @param {Object} aPayload The ping payload data.
* @return {Promise} Promise that is resolved when the ping is saved.
*/
saveAbortedSessionPing: function(aPayload) {
return Impl.saveAbortedSessionPing(aPayload);
},
/**
* Remove the aborted-session ping if any exists.
*
* @return {Promise} Promise that is resolved when the ping was removed.
*/
removeAbortedSessionPing: function() {
return Impl.removeAbortedSessionPing();
},
/**
* Write a ping to a specified location on the disk. Does not add the ping to the
* pending pings.
*
* @param {String} aType The type of the ping.
* @param {Object} aPayload The actual data payload for the ping.
* @param {String} aFilePath The path to save the ping to.
* @param {Object} [aOptions] Options object.
* @param {Boolean} [aOptions.addClientId=false] true if the ping should contain the client
* id, false otherwise.
* @param {Boolean} [aOptions.addEnvironment=false] true if the ping should contain the
* environment data.
* @param {Boolean} [aOptions.overwrite=false] true overwrites a ping with the same name,
* if found.
* @param {Object} [aOptions.overrideEnvironment=null] set to override the environment data.
*
* @returns {Promise} A promise that resolves with the ping id when the ping is saved to
* disk.
*/
savePing: function(aType, aPayload, aFilePath, aOptions = {}) {
let options = aOptions;
options.addClientId = aOptions.addClientId || false;
options.addEnvironment = aOptions.addEnvironment || false;
options.overwrite = aOptions.overwrite || false;
return Impl.savePing(aType, aPayload, aFilePath, options);
},
/**
* The client id send with the telemetry ping.
*
* @return The client id as string, or null.
*/
get clientID() {
return Impl.clientID;
},
/**
* The session recorder instance managed by Telemetry.
* @return {Object} The active SessionRecorder instance or null if not available.
*/
getSessionRecorder: function() {
return Impl._sessionRecorder;
},
/**
* Allows waiting for TelemetryControllers delayed initialization to complete.
* The returned promise is guaranteed to resolve before TelemetryController is shutting down.
* @return {Promise} Resolved when delayed TelemetryController initialization completed.
*/
promiseInitialized: function() {
return Impl.promiseInitialized();
},
});
var Impl = {
_initialized: false,
_initStarted: false, // Whether we started setting up TelemetryController.
_logger: null,
_prevValues: {},
// The previous build ID, if this is the first run with a new build.
// Undefined if this is not the first run, or the previous build ID is unknown.
_previousBuildID: undefined,
_clientID: null,
// A task performing delayed initialization
_delayedInitTask: null,
// The deferred promise resolved when the initialization task completes.
_delayedInitTaskDeferred: null,
// The session recorder, shared with FHR and the Data Reporting Service.
_sessionRecorder: null,
// This is a public barrier Telemetry clients can use to add blockers to the shutdown
// of TelemetryController.
// After this barrier, clients can not submit Telemetry pings anymore.
_shutdownBarrier: new AsyncShutdown.Barrier("TelemetryController: Waiting for clients."),
// This is a private barrier blocked by pending async ping activity (sending & saving).
_connectionsBarrier: new AsyncShutdown.Barrier("TelemetryController: Waiting for pending ping activity"),
// This is true when running in the test infrastructure.
_testMode: false,
get _log() {
if (!this._logger) {
this._logger = Log.repository.getLoggerWithMessagePrefix(LOGGER_NAME, LOGGER_PREFIX);
}
return this._logger;
},
/**
* Get the data for the "application" section of the ping.
*/
_getApplicationSection: function() {
// Querying architecture and update channel can throw. Make sure to recover and null
// those fields.
let arch = null;
try {
arch = Services.sysinfo.get("arch");
} catch (e) {
this._log.trace("_getApplicationSection - Unable to get system architecture.", e);
}
let updateChannel = null;
try {
updateChannel = UpdateUtils.getUpdateChannel(false);
} catch (e) {
this._log.trace("_getApplicationSection - Unable to get update channel.", e);
}
return {
architecture: arch,
buildId: Services.appinfo.appBuildID,
name: Services.appinfo.name,
version: Services.appinfo.version,
displayVersion: AppConstants.MOZ_APP_VERSION_DISPLAY,
vendor: Services.appinfo.vendor,
platformVersion: Services.appinfo.platformVersion,
xpcomAbi: Services.appinfo.XPCOMABI,
channel: updateChannel,
};
},
/**
* Assemble a complete ping following the common ping format specification.
*
* @param {String} aType The type of the ping.
* @param {Object} aPayload The actual data payload for the ping.
* @param {Object} aOptions Options object.
* @param {Boolean} aOptions.addClientId true if the ping should contain the client
* id, false otherwise.
* @param {Boolean} aOptions.addEnvironment true if the ping should contain the
* environment data.
* @param {Object} [aOptions.overrideEnvironment=null] set to override the environment data.
*
* @returns {Object} An object that contains the assembled ping data.
*/
assemblePing: function assemblePing(aType, aPayload, aOptions = {}) {
this._log.trace("assemblePing - Type " + aType + ", aOptions " + JSON.stringify(aOptions));
// Clone the payload data so we don't race against unexpected changes in subobjects that are
// still referenced by other code.
// We can't trust all callers to do this properly on their own.
let payload = Cu.cloneInto(aPayload, myScope);
// Fill the common ping fields.
let pingData = {
type: aType,
id: Policy.generatePingId(),
creationDate: (Policy.now()).toISOString(),
version: PING_FORMAT_VERSION,
application: this._getApplicationSection(),
payload: payload,
};
if (aOptions.addClientId) {
pingData.clientId = this._clientID;
}
if (aOptions.addEnvironment) {
pingData.environment = aOptions.overrideEnvironment || TelemetryEnvironment.currentEnvironment;
}
return pingData;
},
/**
* Track any pending ping send and save tasks through the promise passed here.
* This is needed to block shutdown on any outstanding ping activity.
*/
_trackPendingPingTask: function (aPromise) {
this._connectionsBarrier.client.addBlocker("Waiting for ping task", aPromise);
},
/**
* Submit ping payloads to Telemetry. This will assemble a complete ping, adding
* environment data, client id and some general info.
* Depending on configuration, the ping will be sent to the server (immediately or later)
* and archived locally.
*
* @param {String} aType The type of the ping.
* @param {Object} aPayload The actual data payload for the ping.
* @param {Object} [aOptions] Options object.
* @param {Boolean} [aOptions.addClientId=false] true if the ping should contain the client
* id, false otherwise.
* @param {Boolean} [aOptions.addEnvironment=false] true if the ping should contain the
* environment data.
* @param {Object} [aOptions.overrideEnvironment=null] set to override the environment data.
* @returns {Promise} Test-only - a promise that is resolved with the ping id once the ping is stored or sent.
*/
submitExternalPing: function send(aType, aPayload, aOptions) {
this._log.trace("submitExternalPing - type: " + aType + ", aOptions: " + JSON.stringify(aOptions));
// Enforce the type string to only contain sane characters.
const typeUuid = /^[a-z0-9][a-z0-9-]+[a-z0-9]$/i;
if (!typeUuid.test(aType)) {
this._log.error("submitExternalPing - invalid ping type: " + aType);
let histogram = Telemetry.getKeyedHistogramById("TELEMETRY_INVALID_PING_TYPE_SUBMITTED");
histogram.add(aType, 1);
return Promise.reject(new Error("Invalid type string submitted."));
}
const pingData = this.assemblePing(aType, aPayload, aOptions);
this._log.trace("submitExternalPing - ping assembled, id: " + pingData.id);
// Always persist the pings if we are allowed to.
let archivePromise = TelemetryArchive.promiseArchivePing(pingData)
.catch(e => this._log.error("submitExternalPing - Failed to archive ping " + pingData.id, e));
let p = [ archivePromise ];
p.push(TelemetrySend.submitPing(pingData));
let promise = Promise.all(p);
this._trackPendingPingTask(promise);
return promise.then(() => pingData.id);
},
/**
* Save a ping to disk.
*
* @param {String} aType The type of the ping.
* @param {Object} aPayload The actual data payload for the ping.
* @param {Object} aOptions Options object.
* @param {Boolean} aOptions.addClientId true if the ping should contain the client id,
* false otherwise.
* @param {Boolean} aOptions.addEnvironment true if the ping should contain the
* environment data.
* @param {Boolean} aOptions.overwrite true overwrites a ping with the same name, if found.
* @param {Object} [aOptions.overrideEnvironment=null] set to override the environment data.
*
* @returns {Promise} A promise that resolves with the ping id when the ping is saved to
* disk.
*/
addPendingPing: function addPendingPing(aType, aPayload, aOptions) {
this._log.trace("addPendingPing - Type " + aType + ", aOptions " + JSON.stringify(aOptions));
let pingData = this.assemblePing(aType, aPayload, aOptions);
let savePromise = TelemetryStorage.savePendingPing(pingData);
let archivePromise = TelemetryArchive.promiseArchivePing(pingData).catch(e => {
this._log.error("addPendingPing - Failed to archive ping " + pingData.id, e);
});
// Wait for both the archiving and ping persistence to complete.
let promises = [
savePromise,
archivePromise,
];
return Promise.all(promises).then(() => pingData.id);
},
/**
* Write a ping to a specified location on the disk. Does not add the ping to the
* pending pings.
*
* @param {String} aType The type of the ping.
* @param {Object} aPayload The actual data payload for the ping.
* @param {String} aFilePath The path to save the ping to.
* @param {Object} aOptions Options object.
* @param {Boolean} aOptions.addClientId true if the ping should contain the client id,
* false otherwise.
* @param {Boolean} aOptions.addEnvironment true if the ping should contain the
* environment data.
* @param {Boolean} aOptions.overwrite true overwrites a ping with the same name, if found.
* @param {Object} [aOptions.overrideEnvironment=null] set to override the environment data.
*
* @returns {Promise} A promise that resolves with the ping id when the ping is saved to
* disk.
*/
savePing: function savePing(aType, aPayload, aFilePath, aOptions) {
this._log.trace("savePing - Type " + aType + ", File Path " + aFilePath +
", aOptions " + JSON.stringify(aOptions));
let pingData = this.assemblePing(aType, aPayload, aOptions);
return TelemetryStorage.savePingToFile(pingData, aFilePath, aOptions.overwrite)
.then(() => pingData.id);
},
/**
* Check whether we have an aborted-session ping. If so add it to the pending pings and archive it.
*
* @return {Promise} Promise that is resolved when the ping is submitted and archived.
*/
checkAbortedSessionPing: Task.async(function*() {
let ping = yield TelemetryStorage.loadAbortedSessionPing();
this._log.trace("checkAbortedSessionPing - found aborted-session ping: " + !!ping);
if (!ping) {
return;
}
try {
yield TelemetryStorage.addPendingPing(ping);
yield TelemetryArchive.promiseArchivePing(ping);
} catch (e) {
this._log.error("checkAbortedSessionPing - Unable to add the pending ping", e);
} finally {
yield TelemetryStorage.removeAbortedSessionPing();
}
}),
/**
* Save an aborted-session ping to disk without adding it to the pending pings.
*
* @param {Object} aPayload The ping payload data.
* @return {Promise} Promise that is resolved when the ping is saved.
*/
saveAbortedSessionPing: function(aPayload) {
this._log.trace("saveAbortedSessionPing");
const options = {addClientId: true, addEnvironment: true};
const pingData = this.assemblePing(PING_TYPE_MAIN, aPayload, options);
return TelemetryStorage.saveAbortedSessionPing(pingData);
},
removeAbortedSessionPing: function() {
return TelemetryStorage.removeAbortedSessionPing();
},
/**
* Perform telemetry initialization for either chrome or content process.
* @return {Boolean} True if Telemetry is allowed to record at least base (FHR) data,
* false otherwise.
*/
enableTelemetryRecording: function enableTelemetryRecording() {
// The thumbnail service also runs in a content process, even with e10s off.
// We need to check if e10s is on so we don't submit child payloads for it.
// We still need xpcshell child tests to work, so we skip this if test mode is enabled.
if (Utils.isContentProcess && !this._testMode && !Services.appinfo.browserTabsRemoteAutostart) {
this._log.config("enableTelemetryRecording - not enabling Telemetry for non-e10s child process");
Telemetry.canRecordBase = false;
Telemetry.canRecordExtended = false;
return false;
}
// Configure base Telemetry recording.
// Unified Telemetry makes it opt-out. If extended Telemetry is enabled, base recording
// is always on as well.
const enabled = Utils.isTelemetryEnabled;
Telemetry.canRecordBase = enabled || IS_UNIFIED_TELEMETRY;
Telemetry.canRecordExtended = enabled;
this._log.config("enableTelemetryRecording - canRecordBase:" + Telemetry.canRecordBase +
", canRecordExtended: " + Telemetry.canRecordExtended);
return Telemetry.canRecordBase;
},
/**
* This triggers basic telemetry initialization and schedules a full initialized for later
* for performance reasons.
*
* This delayed initialization means TelemetryController init can be in the following states:
* 1) setupTelemetry was never called
* or it was called and
* 2) _delayedInitTask was scheduled, but didn't run yet.
* 3) _delayedInitTask is currently running.
* 4) _delayedInitTask finished running and is nulled out.
*
* @return {Promise} Resolved when TelemetryController and TelemetrySession are fully
* initialized. This is only used in tests.
*/
setupTelemetry: function setupTelemetry(testing) {
this._initStarted = true;
this._testMode = testing;
this._log.trace("setupTelemetry");
if (this._delayedInitTask) {
this._log.error("setupTelemetry - init task already running");
return this._delayedInitTaskDeferred.promise;
}
if (this._initialized && !this._testMode) {
this._log.error("setupTelemetry - already initialized");
return Promise.resolve();
}
// This will trigger displaying the datachoices infobar.
TelemetryReportingPolicy.setup();
if (!this.enableTelemetryRecording()) {
this._log.config("setupChromeProcess - Telemetry recording is disabled, skipping Chrome process setup.");
return Promise.resolve();
}
// Initialize the session recorder.
if (!this._sessionRecorder) {
this._sessionRecorder = new SessionRecorder(PREF_SESSIONS_BRANCH);
this._sessionRecorder.onStartup();
}
this._attachObservers();
// Perform a lightweight, early initialization for the component, just registering
// a few observers and initializing the session.
TelemetrySession.earlyInit(this._testMode);
// For very short session durations, we may never load the client
// id from disk.
// We try to cache it in prefs to avoid this, even though this may
// lead to some stale client ids.
this._clientID = ClientID.getCachedClientID();
// Delay full telemetry initialization to give the browser time to
// run various late initializers. Otherwise our gathered memory
// footprint and other numbers would be too optimistic.
this._delayedInitTaskDeferred = Promise.defer();
this._delayedInitTask = new DeferredTask(function* () {
try {
// TODO: This should probably happen after all the delayed init here.
this._initialized = true;
TelemetryEnvironment.delayedInit();
yield TelemetrySend.setup(this._testMode);
// Load the ClientID.
this._clientID = yield ClientID.getClientID();
// Perform TelemetrySession delayed init.
yield TelemetrySession.delayedInit();
// Purge the pings archive by removing outdated pings. We don't wait for
// this task to complete, but TelemetryStorage blocks on it during
// shutdown.
TelemetryStorage.runCleanPingArchiveTask();
// Now that FHR/healthreporter is gone, make sure to remove FHR's DB from
// the profile directory. This is a temporary measure that we should drop
// in the future.
TelemetryStorage.removeFHRDatabase();
this._delayedInitTaskDeferred.resolve();
} catch (e) {
this._delayedInitTaskDeferred.reject(e);
} finally {
this._delayedInitTask = null;
}
}.bind(this), this._testMode ? TELEMETRY_TEST_DELAY : TELEMETRY_DELAY);
AsyncShutdown.sendTelemetry.addBlocker("TelemetryController: shutting down",
() => this.shutdown(),
() => this._getState());
this._delayedInitTask.arm();
return this._delayedInitTaskDeferred.promise;
},
/**
* This triggers basic telemetry initialization for content processes.
* @param {Boolean} [testing=false] True if we are in test mode, false otherwise.
*/
setupContentTelemetry: function (testing = false) {
this._testMode = testing;
// We call |enableTelemetryRecording| here to make sure that Telemetry.canRecord* flags
// are in sync between chrome and content processes.
if (!this.enableTelemetryRecording()) {
this._log.trace("setupContentTelemetry - Content process recording disabled.");
return;
}
TelemetrySession.setupContent(testing);
},
// Do proper shutdown waiting and cleanup.
_cleanupOnShutdown: Task.async(function*() {
if (!this._initialized) {
return;
}
Preferences.ignore(PREF_BRANCH_LOG, configureLogging);
this._detachObservers();
// Now do an orderly shutdown.
try {
// Stop the datachoices infobar display.
TelemetryReportingPolicy.shutdown();
TelemetryEnvironment.shutdown();
// Stop any ping sending.
yield TelemetrySend.shutdown();
yield TelemetrySession.shutdown();
// First wait for clients processing shutdown.
yield this._shutdownBarrier.wait();
// ... and wait for any outstanding async ping activity.
yield this._connectionsBarrier.wait();
// Perform final shutdown operations.
yield TelemetryStorage.shutdown();
} finally {
// Reset state.
this._initialized = false;
this._initStarted = false;
}
}),
shutdown: function() {
this._log.trace("shutdown");
// We can be in one the following states here:
// 1) setupTelemetry was never called
// or it was called and
// 2) _delayedInitTask was scheduled, but didn't run yet.
// 3) _delayedInitTask is running now.
// 4) _delayedInitTask finished running already.
// This handles 1).
if (!this._initStarted) {
return Promise.resolve();
}
// This handles 4).
if (!this._delayedInitTask) {
// We already ran the delayed initialization.
return this._cleanupOnShutdown();
}
// This handles 2) and 3).
return this._delayedInitTask.finalize().then(() => this._cleanupOnShutdown());
},
/**
* This observer drives telemetry.
*/
observe: function (aSubject, aTopic, aData) {
// The logger might still be not available at this point.
if (aTopic == "profile-after-change" || aTopic == "app-startup") {
// If we don't have a logger, we need to make sure |Log.repository.getLogger()| is
// called before |getLoggerWithMessagePrefix|. Otherwise logging won't work.
configureLogging();
}
this._log.trace("observe - " + aTopic + " notified.");
switch (aTopic) {
case "profile-after-change":
// profile-after-change is only registered for chrome processes.
return this.setupTelemetry();
case "app-startup":
// app-startup is only registered for content processes.
return this.setupContentTelemetry();
break;
}
return undefined;
},
get clientID() {
return this._clientID;
},
/**
* Get an object describing the current state of this module for AsyncShutdown diagnostics.
*/
_getState: function() {
return {
initialized: this._initialized,
initStarted: this._initStarted,
haveDelayedInitTask: !!this._delayedInitTask,
shutdownBarrier: this._shutdownBarrier.state,
connectionsBarrier: this._connectionsBarrier.state,
sendModule: TelemetrySend.getShutdownState(),
};
},
/**
* Called whenever the FHR Upload preference changes (e.g. when user disables FHR from
* the preferences panel), this triggers sending the deletion ping.
*/
_onUploadPrefChange: function() {
const uploadEnabled = Preferences.get(PREF_FHR_UPLOAD_ENABLED, false);
if (uploadEnabled) {
// There's nothing we should do if we are enabling upload.
return;
}
let p = Task.spawn(function*() {
try {
// Clear the current pings.
yield TelemetrySend.clearCurrentPings();
// Remove all the pending pings, but not the deletion ping.
yield TelemetryStorage.runRemovePendingPingsTask();
} catch (e) {
this._log.error("_onUploadPrefChange - error clearing pending pings", e);
} finally {
// Always send the deletion ping.
this._log.trace("_onUploadPrefChange - Sending deletion ping.");
this.submitExternalPing(PING_TYPE_DELETION, {}, { addClientId: true });
}
}.bind(this));
this._shutdownBarrier.client.addBlocker(
"TelemetryController: removing pending pings after data upload was disabled", p);
},
_attachObservers: function() {
if (IS_UNIFIED_TELEMETRY) {
// Watch the FHR upload setting to trigger deletion pings.
Preferences.observe(PREF_FHR_UPLOAD_ENABLED, this._onUploadPrefChange, this);
}
},
/**
* Remove the preference observer to avoid leaks.
*/
_detachObservers: function() {
if (IS_UNIFIED_TELEMETRY) {
Preferences.ignore(PREF_FHR_UPLOAD_ENABLED, this._onUploadPrefChange, this);
}
},
/**
* Allows waiting for TelemetryControllers delayed initialization to complete.
* This will complete before TelemetryController is shutting down.
* @return {Promise} Resolved when delayed TelemetryController initialization completed.
*/
promiseInitialized: function() {
return this._delayedInitTaskDeferred.promise;
},
getCurrentPingData: function(aSubsession) {
this._log.trace("getCurrentPingData - subsession: " + aSubsession)
// Telemetry is disabled, don't gather any data.
if (!Telemetry.canRecordBase) {
return null;
}
const reason = aSubsession ? REASON_GATHER_SUBSESSION_PAYLOAD : REASON_GATHER_PAYLOAD;
const type = PING_TYPE_MAIN;
const payload = TelemetrySession.getPayload(reason);
const options = { addClientId: true, addEnvironment: true };
const ping = this.assemblePing(type, payload, options);
return ping;
},
reset: Task.async(function*() {
this._clientID = null;
this._detachObservers();
yield TelemetrySession.testReset();
this._connectionsBarrier = new AsyncShutdown.Barrier(
"TelemetryController: Waiting for pending ping activity"
);
this._shutdownBarrier = new AsyncShutdown.Barrier(
"TelemetryController: Waiting for clients."
);
// We need to kick of the controller setup first for tests that check the
// cached client id.
let controllerSetup = this.setupTelemetry(true);
yield TelemetrySend.reset();
yield TelemetryStorage.reset();
yield TelemetryEnvironment.testReset();
yield controllerSetup;
}),
};
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