зеркало из https://github.com/mozilla/gecko-dev.git
753 строки
22 KiB
JavaScript
753 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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"use strict";
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/**
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* Firefox Accounts Web Channel.
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*
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* Uses the WebChannel component to receive messages
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* about account state changes.
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*/
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var EXPORTED_SYMBOLS = ["EnsureFxAccountsWebChannel"];
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const { XPCOMUtils } = ChromeUtils.import(
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"resource://gre/modules/XPCOMUtils.jsm"
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);
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const {
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COMMAND_PROFILE_CHANGE,
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COMMAND_LOGIN,
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COMMAND_LOGOUT,
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COMMAND_DELETE,
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COMMAND_CAN_LINK_ACCOUNT,
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COMMAND_SYNC_PREFERENCES,
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COMMAND_CHANGE_PASSWORD,
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COMMAND_FXA_STATUS,
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COMMAND_PAIR_HEARTBEAT,
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COMMAND_PAIR_SUPP_METADATA,
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COMMAND_PAIR_AUTHORIZE,
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COMMAND_PAIR_DECLINE,
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COMMAND_PAIR_COMPLETE,
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COMMAND_PAIR_PREFERENCES,
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FX_OAUTH_CLIENT_ID,
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ON_PROFILE_CHANGE_NOTIFICATION,
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PREF_LAST_FXA_USER,
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WEBCHANNEL_ID,
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log,
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logPII,
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} = ChromeUtils.import("resource://gre/modules/FxAccountsCommon.js");
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ChromeUtils.defineModuleGetter(
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this,
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"Services",
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"resource://gre/modules/Services.jsm"
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);
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ChromeUtils.defineModuleGetter(
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this,
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"WebChannel",
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"resource://gre/modules/WebChannel.jsm"
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);
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ChromeUtils.defineModuleGetter(
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this,
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"fxAccounts",
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"resource://gre/modules/FxAccounts.jsm"
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);
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ChromeUtils.defineModuleGetter(
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this,
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"FxAccountsStorageManagerCanStoreField",
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"resource://gre/modules/FxAccountsStorage.jsm"
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);
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ChromeUtils.defineModuleGetter(
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this,
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"PrivateBrowsingUtils",
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"resource://gre/modules/PrivateBrowsingUtils.jsm"
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);
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ChromeUtils.defineModuleGetter(
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this,
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"Weave",
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"resource://services-sync/main.js"
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);
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ChromeUtils.defineModuleGetter(
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this,
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"CryptoUtils",
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"resource://services-crypto/utils.js"
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);
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ChromeUtils.defineModuleGetter(
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this,
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"FxAccountsPairingFlow",
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"resource://gre/modules/FxAccountsPairing.jsm"
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);
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XPCOMUtils.defineLazyPreferenceGetter(
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this,
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"pairingEnabled",
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"identity.fxaccounts.pairing.enabled"
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);
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XPCOMUtils.defineLazyPreferenceGetter(
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this,
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"separatePrivilegedMozillaWebContentProcess",
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"browser.tabs.remote.separatePrivilegedMozillaWebContentProcess",
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false
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);
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XPCOMUtils.defineLazyPreferenceGetter(
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this,
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"separatedMozillaDomains",
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"browser.tabs.remote.separatedMozillaDomains",
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false,
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false,
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val => val.split(",")
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);
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XPCOMUtils.defineLazyPreferenceGetter(
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this,
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"accountServer",
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"identity.fxaccounts.remote.root",
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false,
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false,
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val => Services.io.newURI(val)
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);
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// These engines were added years after Sync had been introduced, they need
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// special handling since they are system add-ons and are un-available on
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// older versions of Firefox.
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const EXTRA_ENGINES = ["addresses", "creditcards"];
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/**
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* A helper function that extracts the message and stack from an error object.
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* Returns a `{ message, stack }` tuple. `stack` will be null if the error
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* doesn't have a stack trace.
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*/
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function getErrorDetails(error) {
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let details = { message: String(error), stack: null };
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// Adapted from Console.jsm.
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if (error.stack) {
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let frames = [];
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for (let frame = error.stack; frame; frame = frame.caller) {
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frames.push(String(frame).padStart(4));
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}
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details.stack = frames.join("\n");
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}
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return details;
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}
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/**
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* Create a new FxAccountsWebChannel to listen for account updates
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*
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* @param {Object} options Options
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* @param {Object} options
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* @param {String} options.content_uri
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* The FxA Content server uri
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* @param {String} options.channel_id
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* The ID of the WebChannel
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* @param {String} options.helpers
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* Helpers functions. Should only be passed in for testing.
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* @constructor
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*/
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this.FxAccountsWebChannel = function(options) {
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if (!options) {
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throw new Error("Missing configuration options");
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}
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if (!options.content_uri) {
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throw new Error("Missing 'content_uri' option");
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}
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this._contentUri = options.content_uri;
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if (!options.channel_id) {
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throw new Error("Missing 'channel_id' option");
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}
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this._webChannelId = options.channel_id;
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// options.helpers is only specified by tests.
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XPCOMUtils.defineLazyGetter(this, "_helpers", () => {
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return options.helpers || new FxAccountsWebChannelHelpers(options);
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});
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this._setupChannel();
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};
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FxAccountsWebChannel.prototype = {
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/**
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* WebChannel that is used to communicate with content page
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*/
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_channel: null,
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/**
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* Helpers interface that does the heavy lifting.
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*/
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_helpers: null,
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/**
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* WebChannel ID.
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*/
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_webChannelId: null,
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/**
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* WebChannel origin, used to validate origin of messages
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*/
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_webChannelOrigin: null,
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/**
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* Release all resources that are in use.
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*/
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tearDown() {
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this._channel.stopListening();
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this._channel = null;
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this._channelCallback = null;
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},
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/**
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* Configures and registers a new WebChannel
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*
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* @private
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*/
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_setupChannel() {
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// if this.contentUri is present but not a valid URI, then this will throw an error.
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try {
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this._webChannelOrigin = Services.io.newURI(this._contentUri);
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this._registerChannel();
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} catch (e) {
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log.error(e);
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throw e;
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}
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},
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_receiveMessage(message, sendingContext) {
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const { command, data } = message;
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let shouldCheckRemoteType =
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separatePrivilegedMozillaWebContentProcess &&
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separatedMozillaDomains.some(function(val) {
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return (
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accountServer.asciiHost == val ||
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accountServer.asciiHost.endsWith("." + val)
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);
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});
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let { currentRemoteType } = sendingContext.browsingContext;
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if (shouldCheckRemoteType && currentRemoteType != "privilegedmozilla") {
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log.error(
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`Rejected FxA webchannel message from remoteType = ${currentRemoteType}`
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);
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return;
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}
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let browser = sendingContext.browsingContext.top.embedderElement;
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switch (command) {
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case COMMAND_PROFILE_CHANGE:
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Services.obs.notifyObservers(
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null,
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ON_PROFILE_CHANGE_NOTIFICATION,
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data.uid
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);
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break;
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case COMMAND_LOGIN:
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this._helpers
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.login(data)
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.catch(error => this._sendError(error, message, sendingContext));
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break;
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case COMMAND_LOGOUT:
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case COMMAND_DELETE:
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this._helpers
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.logout(data.uid)
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.catch(error => this._sendError(error, message, sendingContext));
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break;
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case COMMAND_CAN_LINK_ACCOUNT:
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let canLinkAccount = this._helpers.shouldAllowRelink(data.email);
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let response = {
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command,
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messageId: message.messageId,
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data: { ok: canLinkAccount },
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};
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log.debug("FxAccountsWebChannel response", response);
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this._channel.send(response, sendingContext);
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break;
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case COMMAND_SYNC_PREFERENCES:
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this._helpers.openSyncPreferences(browser, data.entryPoint);
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break;
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case COMMAND_PAIR_PREFERENCES:
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if (pairingEnabled) {
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browser.loadURI("about:preferences?action=pair#sync", {
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triggeringPrincipal: Services.scriptSecurityManager.getSystemPrincipal(),
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});
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}
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break;
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case COMMAND_CHANGE_PASSWORD:
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this._helpers
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.changePassword(data)
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.catch(error => this._sendError(error, message, sendingContext));
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break;
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case COMMAND_FXA_STATUS:
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log.debug("fxa_status received");
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const service = data && data.service;
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const isPairing = data && data.isPairing;
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const context = data && data.context;
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this._helpers
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.getFxaStatus(service, sendingContext, isPairing, context)
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.then(fxaStatus => {
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let response = {
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command,
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messageId: message.messageId,
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data: fxaStatus,
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};
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this._channel.send(response, sendingContext);
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})
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.catch(error => this._sendError(error, message, sendingContext));
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break;
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case COMMAND_PAIR_HEARTBEAT:
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case COMMAND_PAIR_SUPP_METADATA:
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case COMMAND_PAIR_AUTHORIZE:
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case COMMAND_PAIR_DECLINE:
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case COMMAND_PAIR_COMPLETE:
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log.debug(`Pairing command ${command} received`);
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const { channel_id: channelId } = data;
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delete data.channel_id;
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const flow = FxAccountsPairingFlow.get(channelId);
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if (!flow) {
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log.warn(`Could not find a pairing flow for ${channelId}`);
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return;
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}
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flow.onWebChannelMessage(command, data).then(replyData => {
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this._channel.send(
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{
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command,
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messageId: message.messageId,
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data: replyData,
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},
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sendingContext
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);
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});
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break;
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default:
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log.warn("Unrecognized FxAccountsWebChannel command", command);
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// As a safety measure we also terminate any pending FxA pairing flow.
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FxAccountsPairingFlow.finalizeAll();
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break;
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}
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},
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_sendError(error, incomingMessage, sendingContext) {
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log.error("Failed to handle FxAccountsWebChannel message", error);
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this._channel.send(
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{
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command: incomingMessage.command,
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messageId: incomingMessage.messageId,
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data: {
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error: getErrorDetails(error),
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},
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},
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sendingContext
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);
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},
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/**
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* Create a new channel with the WebChannelBroker, setup a callback listener
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* @private
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*/
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_registerChannel() {
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/**
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* Processes messages that are called back from the FxAccountsChannel
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*
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* @param webChannelId {String}
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* Command webChannelId
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* @param message {Object}
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* Command message
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* @param sendingContext {Object}
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* Message sending context.
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* @param sendingContext.browsingContext {BrowsingContext}
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* The browsingcontext from which the
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* WebChannelMessageToChrome was sent.
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* @param sendingContext.eventTarget {EventTarget}
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* The <EventTarget> where the message was sent.
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* @param sendingContext.principal {Principal}
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* The <Principal> of the EventTarget where the message was sent.
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* @private
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*
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*/
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let listener = (webChannelId, message, sendingContext) => {
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if (message) {
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log.debug("FxAccountsWebChannel message received", message.command);
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if (logPII) {
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log.debug("FxAccountsWebChannel message details", message);
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}
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try {
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this._receiveMessage(message, sendingContext);
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} catch (error) {
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this._sendError(error, message, sendingContext);
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}
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}
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};
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this._channelCallback = listener;
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this._channel = new WebChannel(this._webChannelId, this._webChannelOrigin);
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this._channel.listen(listener);
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log.debug(
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"FxAccountsWebChannel registered: " +
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this._webChannelId +
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" with origin " +
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this._webChannelOrigin.prePath
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);
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},
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};
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this.FxAccountsWebChannelHelpers = function(options) {
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options = options || {};
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this._fxAccounts = options.fxAccounts || fxAccounts;
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this._weaveXPCOM = options.weaveXPCOM || null;
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this._privateBrowsingUtils =
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options.privateBrowsingUtils || PrivateBrowsingUtils;
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};
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FxAccountsWebChannelHelpers.prototype = {
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// If the last fxa account used for sync isn't this account, we display
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// a modal dialog checking they really really want to do this...
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// (This is sync-specific, so ideally would be in sync's identity module,
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// but it's a little more seamless to do here, and sync is currently the
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// only fxa consumer, so...
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shouldAllowRelink(acctName) {
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return (
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!this._needRelinkWarning(acctName) || this._promptForRelink(acctName)
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);
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},
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/**
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* stores sync login info it in the fxaccounts service
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*
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* @param accountData the user's account data and credentials
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*/
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async login(accountData) {
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// We don't act on customizeSync anymore, it used to open a dialog inside
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// the browser to selecte the engines to sync but we do it on the web now.
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log.debug("Webchannel is logging a user in.");
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delete accountData.customizeSync;
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// Save requested services for later.
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const requestedServices = accountData.services;
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delete accountData.services;
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// the user has already been shown the "can link account"
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// screen. No need to keep this data around.
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delete accountData.verifiedCanLinkAccount;
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// Remember who it was so we can log out next time.
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this.setPreviousAccountNameHashPref(accountData.email);
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await this._fxAccounts.telemetry.recordConnection(
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Object.keys(requestedServices || {}),
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"webchannel"
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);
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// A sync-specific hack - we want to ensure sync has been initialized
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// before we set the signed-in user.
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// XXX - probably not true any more, especially now we have observerPreloads
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// in FxAccounts.jsm?
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let xps =
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this._weaveXPCOM ||
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Cc["@mozilla.org/weave/service;1"].getService(Ci.nsISupports)
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.wrappedJSObject;
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await xps.whenLoaded();
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await this._fxAccounts._internal.setSignedInUser(accountData);
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if (requestedServices) {
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// User has enabled Sync.
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if (requestedServices.sync) {
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const { offeredEngines, declinedEngines } = requestedServices.sync;
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if (offeredEngines && declinedEngines) {
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EXTRA_ENGINES.forEach(engine => {
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if (
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offeredEngines.includes(engine) &&
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!declinedEngines.includes(engine)
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) {
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// These extra engines are disabled by default.
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Services.prefs.setBoolPref(
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`services.sync.engine.${engine}`,
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true
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);
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}
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});
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log.debug("Received declined engines", declinedEngines);
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Weave.Service.engineManager.setDeclined(declinedEngines);
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declinedEngines.forEach(engine => {
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Services.prefs.setBoolPref(`services.sync.engine.${engine}`, false);
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});
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}
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log.debug("Webchannel is enabling sync");
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await xps.Weave.Service.configure();
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}
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}
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},
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/**
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* logout the fxaccounts service
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*
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* @param the uid of the account which have been logged out
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*/
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async logout(uid) {
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let fxa = this._fxAccounts;
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let userData = await fxa._internal.getUserAccountData(["uid"]);
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if (userData && userData.uid === uid) {
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await fxa.telemetry.recordDisconnection(null, "webchannel");
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// true argument is `localOnly`, because server-side stuff
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// has already been taken care of by the content server
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await fxa.signOut(true);
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}
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},
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/**
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* Check if `sendingContext` is in private browsing mode.
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*/
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isPrivateBrowsingMode(sendingContext) {
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if (!sendingContext) {
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log.error("Unable to check for private browsing mode, assuming true");
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return true;
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}
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let browser = sendingContext.browsingContext.top.embedderElement;
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const isPrivateBrowsing = this._privateBrowsingUtils.isBrowserPrivate(
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browser
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);
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log.debug("is private browsing", isPrivateBrowsing);
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return isPrivateBrowsing;
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},
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|
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/**
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* Check whether sending fxa_status data should be allowed.
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*/
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shouldAllowFxaStatus(service, sendingContext, isPairing, context) {
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// Return user data for any service in non-PB mode. In PB mode,
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// only return user data if service==="sync" or is in pairing mode
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// (as service will be equal to the OAuth client ID and not "sync").
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//
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// This behaviour allows users to click the "Manage Account"
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// link from about:preferences#sync while in PB mode and things
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// "just work". While in non-PB mode, users can sign into
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// Pocket w/o entering their password a 2nd time, while in PB
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// mode they *will* have to enter their email/password again.
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//
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// The difference in behaviour is to try to match user
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// expectations as to what is and what isn't part of the browser.
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// Sync is viewed as an integral part of the browser, interacting
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// with FxA as part of a Sync flow should work all the time. If
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// Sync is broken in PB mode, users will think Firefox is broken.
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// See https://bugzilla.mozilla.org/show_bug.cgi?id=1323853
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log.debug("service", service);
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return (
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!this.isPrivateBrowsingMode(sendingContext) ||
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service === "sync" ||
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context === "fx_desktop_v3" ||
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isPairing
|
|
);
|
|
},
|
|
|
|
/**
|
|
* Get fxa_status information. Resolves to { signedInUser: <user_data> }.
|
|
* If returning status information is not allowed or no user is signed into
|
|
* Sync, `user_data` will be null.
|
|
*/
|
|
async getFxaStatus(service, sendingContext, isPairing, context) {
|
|
let signedInUser = null;
|
|
|
|
if (
|
|
this.shouldAllowFxaStatus(service, sendingContext, isPairing, context)
|
|
) {
|
|
const userData = await this._fxAccounts._internal.getUserAccountData([
|
|
"email",
|
|
"sessionToken",
|
|
"uid",
|
|
"verified",
|
|
]);
|
|
if (userData) {
|
|
signedInUser = {
|
|
email: userData.email,
|
|
sessionToken: userData.sessionToken,
|
|
uid: userData.uid,
|
|
verified: userData.verified,
|
|
};
|
|
}
|
|
}
|
|
|
|
return {
|
|
signedInUser,
|
|
clientId: FX_OAUTH_CLIENT_ID,
|
|
capabilities: {
|
|
multiService: true,
|
|
pairing: pairingEnabled,
|
|
engines: this._getAvailableExtraEngines(),
|
|
},
|
|
};
|
|
},
|
|
|
|
_getAvailableExtraEngines() {
|
|
return EXTRA_ENGINES.filter(engineName => {
|
|
try {
|
|
return Services.prefs.getBoolPref(
|
|
`services.sync.engine.${engineName}.available`
|
|
);
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
});
|
|
},
|
|
|
|
async changePassword(credentials) {
|
|
// If |credentials| has fields that aren't handled by accounts storage,
|
|
// updateUserAccountData will throw - mainly to prevent errors in code
|
|
// that hard-codes field names.
|
|
// However, in this case the field names aren't really in our control.
|
|
// We *could* still insist the server know what fields names are valid,
|
|
// but that makes life difficult for the server when Firefox adds new
|
|
// features (ie, new fields) - forcing the server to track a map of
|
|
// versions to supported field names doesn't buy us much.
|
|
// So we just remove field names we know aren't handled.
|
|
let newCredentials = {
|
|
device: null, // Force a brand new device registration.
|
|
};
|
|
for (let name of Object.keys(credentials)) {
|
|
if (
|
|
name == "email" ||
|
|
name == "uid" ||
|
|
FxAccountsStorageManagerCanStoreField(name)
|
|
) {
|
|
newCredentials[name] = credentials[name];
|
|
} else {
|
|
log.info("changePassword ignoring unsupported field", name);
|
|
}
|
|
}
|
|
await this._fxAccounts._internal.updateUserAccountData(newCredentials);
|
|
// Force the keys derivation, to be able to register a send-tab command
|
|
// in updateDeviceRegistration (but it's not clear we really do need to
|
|
// force keys here - see bug 1580398 for more)
|
|
try {
|
|
await this._fxAccounts.keys.getKeys();
|
|
} catch (e) {
|
|
log.error("getKeys errored", e);
|
|
}
|
|
await this._fxAccounts._internal.updateDeviceRegistration();
|
|
},
|
|
|
|
/**
|
|
* Get the hash of account name of the previously signed in account
|
|
*/
|
|
getPreviousAccountNameHashPref() {
|
|
try {
|
|
return Services.prefs.getStringPref(PREF_LAST_FXA_USER);
|
|
} catch (_) {
|
|
return "";
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Given an account name, set the hash of the previously signed in account
|
|
*
|
|
* @param acctName the account name of the user's account.
|
|
*/
|
|
setPreviousAccountNameHashPref(acctName) {
|
|
Services.prefs.setStringPref(
|
|
PREF_LAST_FXA_USER,
|
|
CryptoUtils.sha256Base64(acctName)
|
|
);
|
|
},
|
|
|
|
/**
|
|
* Open Sync Preferences in the current tab of the browser
|
|
*
|
|
* @param {Object} browser the browser in which to open preferences
|
|
* @param {String} [entryPoint] entryPoint to use for logging
|
|
*/
|
|
openSyncPreferences(browser, entryPoint) {
|
|
let uri = "about:preferences";
|
|
if (entryPoint) {
|
|
uri += "?entrypoint=" + encodeURIComponent(entryPoint);
|
|
}
|
|
uri += "#sync";
|
|
|
|
browser.loadURI(uri, {
|
|
triggeringPrincipal: Services.scriptSecurityManager.getSystemPrincipal(),
|
|
});
|
|
},
|
|
|
|
/**
|
|
* If a user signs in using a different account, the data from the
|
|
* previous account and the new account will be merged. Ask the user
|
|
* if they want to continue.
|
|
*
|
|
* @private
|
|
*/
|
|
_needRelinkWarning(acctName) {
|
|
let prevAcctHash = this.getPreviousAccountNameHashPref();
|
|
return prevAcctHash && prevAcctHash != CryptoUtils.sha256Base64(acctName);
|
|
},
|
|
|
|
/**
|
|
* Show the user a warning dialog that the data from the previous account
|
|
* and the new account will be merged.
|
|
*
|
|
* @private
|
|
*/
|
|
_promptForRelink(acctName) {
|
|
let sb = Services.strings.createBundle(
|
|
"chrome://browser/locale/syncSetup.properties"
|
|
);
|
|
let continueLabel = sb.GetStringFromName("continue.label");
|
|
let title = sb.GetStringFromName("relinkVerify.title");
|
|
let description = sb.formatStringFromName("relinkVerify.description", [
|
|
acctName,
|
|
]);
|
|
let body =
|
|
sb.GetStringFromName("relinkVerify.heading") + "\n\n" + description;
|
|
let ps = Services.prompt;
|
|
let buttonFlags =
|
|
ps.BUTTON_POS_0 * ps.BUTTON_TITLE_IS_STRING +
|
|
ps.BUTTON_POS_1 * ps.BUTTON_TITLE_CANCEL +
|
|
ps.BUTTON_POS_1_DEFAULT;
|
|
|
|
// If running in context of the browser chrome, window does not exist.
|
|
let pressed = Services.prompt.confirmEx(
|
|
null,
|
|
title,
|
|
body,
|
|
buttonFlags,
|
|
continueLabel,
|
|
null,
|
|
null,
|
|
null,
|
|
{}
|
|
);
|
|
return pressed === 0; // 0 is the "continue" button
|
|
},
|
|
};
|
|
|
|
var singleton;
|
|
// The entry-point for this module, which ensures only one of our channels is
|
|
// ever created - we require this because the WebChannel is global in scope
|
|
// (eg, it uses the observer service to tell interested parties of interesting
|
|
// things) and allowing multiple channels would cause such notifications to be
|
|
// sent multiple times.
|
|
var EnsureFxAccountsWebChannel = () => {
|
|
let contentUri = Services.urlFormatter.formatURLPref(
|
|
"identity.fxaccounts.remote.root"
|
|
);
|
|
if (singleton && singleton._contentUri !== contentUri) {
|
|
singleton.tearDown();
|
|
singleton = null;
|
|
}
|
|
if (!singleton) {
|
|
try {
|
|
if (contentUri) {
|
|
// The FxAccountsWebChannel listens for events and updates
|
|
// the state machine accordingly.
|
|
singleton = new FxAccountsWebChannel({
|
|
content_uri: contentUri,
|
|
channel_id: WEBCHANNEL_ID,
|
|
});
|
|
} else {
|
|
log.warn("FxA WebChannel functionaly is disabled due to no URI pref.");
|
|
}
|
|
} catch (ex) {
|
|
log.error("Failed to create FxA WebChannel", ex);
|
|
}
|
|
}
|
|
};
|