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 import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
6 import { AppConstants } from "resource://gre/modules/AppConstants.sys.mjs";
9 ChromeUtils.defineESModuleGetters(lazy, {
10 ClientID: "resource://gre/modules/ClientID.sys.mjs",
13 ChromeUtils.defineLazyGetter(lazy, "CryptoHash", () => {
14 return Components.Constructor(
15 "@mozilla.org/security/hash;1",
21 XPCOMUtils.defineLazyPreferenceGetter(
24 "services.common.uptake.sampleRate"
27 // Telemetry events id (see Events.yaml).
28 const TELEMETRY_EVENTS_ID = "uptake.remotecontent.result";
31 * A wrapper around certain low-level operations that can be substituted for testing.
37 return lazy.ClientID.getClientID();
41 * Compute an integer in the range [0, 100) using a hash of the
44 * This is useful for sampling clients when trying to report
45 * telemetry only for a sample of clients.
47 async getClientIDHash() {
48 if (this._clientIDHash === null) {
49 this._clientIDHash = this._doComputeClientIDHash();
51 return this._clientIDHash;
54 async _doComputeClientIDHash() {
55 const clientID = await this.getClientID();
56 let byteArr = new TextEncoder().encode(clientID);
57 let hash = new lazy.CryptoHash("sha256");
58 hash.update(byteArr, byteArr.length);
59 const bytes = hash.finish(false);
61 for (let i = 0, len = bytes.length; i < len; i++) {
62 rem = ((rem << 8) + (bytes[i].charCodeAt(0) & 0xff)) % 100;
68 return AppConstants.MOZ_UPDATE_CHANNEL;
73 * A Telemetry helper to report uptake of remote content.
75 export class UptakeTelemetry {
77 * Supported uptake statuses:
79 * - `UP_TO_DATE`: Local content was already up-to-date with remote content.
80 * - `SUCCESS`: Local content was updated successfully.
81 * - `BACKOFF`: Remote server asked clients to backoff.
82 * - `PARSE_ERROR`: Parsing server response has failed.
83 * - `CONTENT_ERROR`: Server response has unexpected content.
84 * - `PREF_DISABLED`: Update is disabled in user preferences.
85 * - `SIGNATURE_ERROR`: Signature verification after diff-based sync has failed.
86 * - `SIGNATURE_RETRY_ERROR`: Signature verification after full fetch has failed.
87 * - `CONFLICT_ERROR`: Some remote changes are in conflict with local changes.
88 * - `CORRUPTION_ERROR`: Error related to corrupted local data.
89 * - `SYNC_ERROR`: Synchronization of remote changes has failed.
90 * - `APPLY_ERROR`: Application of changes locally has failed.
91 * - `SERVER_ERROR`: Server failed to respond.
92 * - `CERTIFICATE_ERROR`: Server certificate verification has failed.
93 * - `DOWNLOAD_ERROR`: Data could not be fully retrieved.
94 * - `TIMEOUT_ERROR`: Server response has timed out.
95 * - `NETWORK_ERROR`: Communication with server has failed.
96 * - `NETWORK_OFFLINE_ERROR`: Network not available.
97 * - `SHUTDOWN_ERROR`: Error occuring during shutdown.
98 * - `UNKNOWN_ERROR`: Uncategorized error.
99 * - `CLEANUP_ERROR`: Clean-up of temporary files has failed.
100 * - `SYNC_BROKEN_ERROR`: Synchronization is broken.
101 * - `CUSTOM_1_ERROR`: Update source specific error #1.
102 * - `CUSTOM_2_ERROR`: Update source specific error #2.
103 * - `CUSTOM_3_ERROR`: Update source specific error #3.
104 * - `CUSTOM_4_ERROR`: Update source specific error #4.
105 * - `CUSTOM_5_ERROR`: Update source specific error #5.
109 static get STATUS() {
111 UP_TO_DATE: "up_to_date",
114 PARSE_ERROR: "parse_error",
115 CONTENT_ERROR: "content_error",
116 PREF_DISABLED: "pref_disabled",
117 SIGNATURE_ERROR: "sign_error",
118 SIGNATURE_RETRY_ERROR: "sign_retry_error",
119 CONFLICT_ERROR: "conflict_error",
120 CORRUPTION_ERROR: "corruption_error",
121 SYNC_ERROR: "sync_error",
122 APPLY_ERROR: "apply_error",
123 SERVER_ERROR: "server_error",
124 CERTIFICATE_ERROR: "certificate_error",
125 DOWNLOAD_ERROR: "download_error",
126 TIMEOUT_ERROR: "timeout_error",
127 NETWORK_ERROR: "network_error",
128 NETWORK_OFFLINE_ERROR: "offline_error",
129 SHUTDOWN_ERROR: "shutdown_error",
130 UNKNOWN_ERROR: "unknown_error",
131 CLEANUP_ERROR: "cleanup_error",
132 SYNC_BROKEN_ERROR: "sync_broken_error",
133 CUSTOM_1_ERROR: "custom_1_error",
134 CUSTOM_2_ERROR: "custom_2_error",
135 CUSTOM_3_ERROR: "custom_3_error",
136 CUSTOM_4_ERROR: "custom_4_error",
137 CUSTOM_5_ERROR: "custom_5_error",
141 static get Policy() {
146 * Reports the uptake status for the specified source.
148 * @param {string} component the component reporting the uptake (eg. "normandy").
149 * @param {string} status the uptake status (eg. "network_error")
150 * @param {Object} extra extra values to report
151 * @param {string} extra.source the update source (eg. "recipe-42").
152 * @param {string} extra.trigger what triggered the polling/fetching (eg. "broadcast", "timer").
153 * @param {int} extra.age age of pulled data in seconds
155 static async report(component, status, extra = {}) {
156 const { source } = extra;
159 throw new Error("`source` value is mandatory.");
162 if (!Object.values(UptakeTelemetry.STATUS).includes(status)) {
163 throw new Error(`Unknown status '${status}'`);
166 // Report event for real-time monitoring. See Events.yaml for registration.
167 // Contrary to histograms, Telemetry Events are not enabled by default.
168 // Enable them on first call to `report()`.
169 if (!this._eventsEnabled) {
170 Services.telemetry.setEventRecordingEnabled(TELEMETRY_EVENTS_ID, true);
171 this._eventsEnabled = true;
174 const hash = await UptakeTelemetry.Policy.getClientIDHash();
175 const channel = UptakeTelemetry.Policy.getChannel();
176 const shouldSendEvent =
177 !["release", "esr"].includes(channel) || hash < lazy.gSampleRate;
178 if (shouldSendEvent) {
179 // The Event API requires `extra` values to be of type string. Force it!
180 const extraStr = Object.keys(extra).reduce((acc, k) => {
181 acc[k] = extra[k].toString();
184 Services.telemetry.recordEvent(