499 lines
16 KiB
JavaScript
499 lines
16 KiB
JavaScript
/*
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Copyright 2015, 2016 OpenMarket Ltd
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Copyright 2017 Vector Creations Ltd
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Copyright 2018 New Vector Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import Promise from 'bluebird';
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import Matrix from 'matrix-js-sdk';
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import MatrixClientPeg from './MatrixClientPeg';
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import createMatrixClient from './utils/createMatrixClient';
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import Analytics from './Analytics';
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import Notifier from './Notifier';
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import UserActivity from './UserActivity';
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import Presence from './Presence';
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import dis from './dispatcher';
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import DMRoomMap from './utils/DMRoomMap';
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import RtsClient from './RtsClient';
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import Modal from './Modal';
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import sdk from './index';
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/**
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* Called at startup, to attempt to build a logged-in Matrix session. It tries
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* a number of things:
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*
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*
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* 1. if we have a guest access token in the fragment query params, it uses
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* that.
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*
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* 2. if an access token is stored in local storage (from a previous session),
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* it uses that.
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*
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* 3. it attempts to auto-register as a guest user.
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*
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* If any of steps 1-4 are successful, it will call {_doSetLoggedIn}, which in
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* turn will raise on_logged_in and will_start_client events.
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*
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* @param {object} opts
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*
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* @param {object} opts.fragmentQueryParams: string->string map of the
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* query-parameters extracted from the #-fragment of the starting URI.
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*
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* @param {boolean} opts.enableGuest: set to true to enable guest access tokens
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* and auto-guest registrations.
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*
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* @params {string} opts.guestHsUrl: homeserver URL. Only used if enableGuest is
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* true; defines the HS to register against.
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*
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* @params {string} opts.guestIsUrl: homeserver URL. Only used if enableGuest is
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* true; defines the IS to use.
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*
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* @returns {Promise} a promise which resolves when the above process completes.
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* Resolves to `true` if we ended up starting a session, or `false` if we
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* failed.
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*/
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export async function loadSession(opts) {
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try {
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let enableGuest = opts.enableGuest || false;
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const guestHsUrl = opts.guestHsUrl;
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const guestIsUrl = opts.guestIsUrl;
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const fragmentQueryParams = opts.fragmentQueryParams || {};
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const defaultDeviceDisplayName = opts.defaultDeviceDisplayName;
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if (!guestHsUrl) {
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console.warn("Cannot enable guest access: can't determine HS URL to use");
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enableGuest = false;
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}
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if (enableGuest &&
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fragmentQueryParams.guest_user_id &&
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fragmentQueryParams.guest_access_token
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) {
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console.log("Using guest access credentials");
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return _doSetLoggedIn({
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userId: fragmentQueryParams.guest_user_id,
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accessToken: fragmentQueryParams.guest_access_token,
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homeserverUrl: guestHsUrl,
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identityServerUrl: guestIsUrl,
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guest: true,
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}, true).then(() => true);
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}
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const success = await _restoreFromLocalStorage();
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if (success) {
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return true;
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}
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if (enableGuest) {
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return _registerAsGuest(guestHsUrl, guestIsUrl, defaultDeviceDisplayName);
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}
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// fall back to login screen
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return false;
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} catch (e) {
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return _handleLoadSessionFailure(e);
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}
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}
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/**
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* @param {Object} queryParams string->string map of the
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* query-parameters extracted from the real query-string of the starting
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* URI.
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*
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* @param {String} defaultDeviceDisplayName
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*
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* @returns {Promise} promise which resolves to true if we completed the token
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* login, else false
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*/
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export function attemptTokenLogin(queryParams, defaultDeviceDisplayName) {
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if (!queryParams.loginToken) {
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return Promise.resolve(false);
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}
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if (!queryParams.homeserver) {
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console.warn("Cannot log in with token: can't determine HS URL to use");
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return Promise.resolve(false);
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}
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// create a temporary MatrixClient to do the login
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const client = Matrix.createClient({
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baseUrl: queryParams.homeserver,
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});
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return client.login(
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"m.login.token", {
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token: queryParams.loginToken,
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initial_device_display_name: defaultDeviceDisplayName,
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},
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).then(function(data) {
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console.log("Logged in with token");
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return _clearStorage().then(() => {
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_persistCredentialsToLocalStorage({
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userId: data.user_id,
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deviceId: data.device_id,
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accessToken: data.access_token,
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homeserverUrl: queryParams.homeserver,
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identityServerUrl: queryParams.identityServer,
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guest: false,
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});
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return true;
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});
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}).catch((err) => {
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console.error("Failed to log in with login token: " + err + " " +
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err.data);
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return false;
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});
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}
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function _registerAsGuest(hsUrl, isUrl, defaultDeviceDisplayName) {
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console.log(`Doing guest login on ${hsUrl}`);
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// TODO: we should probably de-duplicate this and Login.loginAsGuest.
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// Not really sure where the right home for it is.
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// create a temporary MatrixClient to do the login
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const client = Matrix.createClient({
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baseUrl: hsUrl,
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});
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return client.registerGuest({
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body: {
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initial_device_display_name: defaultDeviceDisplayName,
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},
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}).then((creds) => {
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console.log(`Registered as guest: ${creds.user_id}`);
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return _doSetLoggedIn({
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userId: creds.user_id,
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deviceId: creds.device_id,
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accessToken: creds.access_token,
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homeserverUrl: hsUrl,
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identityServerUrl: isUrl,
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guest: true,
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}, true).then(() => true);
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}, (err) => {
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console.error("Failed to register as guest: " + err + " " + err.data);
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return false;
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});
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}
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// returns a promise which resolves to true if a session is found in
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// localstorage
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//
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// N.B. Lifecycle.js should not maintain any further localStorage state, we
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// are moving towards using SessionStore to keep track of state related
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// to the current session (which is typically backed by localStorage).
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//
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// The plan is to gradually move the localStorage access done here into
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// SessionStore to avoid bugs where the view becomes out-of-sync with
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// localStorage (e.g. teamToken, isGuest etc.)
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async function _restoreFromLocalStorage() {
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if (!localStorage) {
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return false;
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}
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const hsUrl = localStorage.getItem("mx_hs_url");
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const isUrl = localStorage.getItem("mx_is_url") || 'https://matrix.org';
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const accessToken = localStorage.getItem("mx_access_token");
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const userId = localStorage.getItem("mx_user_id");
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const deviceId = localStorage.getItem("mx_device_id");
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let isGuest;
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if (localStorage.getItem("mx_is_guest") !== null) {
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isGuest = localStorage.getItem("mx_is_guest") === "true";
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} else {
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// legacy key name
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isGuest = localStorage.getItem("matrix-is-guest") === "true";
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}
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if (accessToken && userId && hsUrl) {
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console.log(`Restoring session for ${userId}`);
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await _doSetLoggedIn({
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userId: userId,
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deviceId: deviceId,
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accessToken: accessToken,
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homeserverUrl: hsUrl,
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identityServerUrl: isUrl,
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guest: isGuest,
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}, false);
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return true;
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} else {
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console.log("No previous session found.");
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return false;
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}
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}
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function _handleLoadSessionFailure(e) {
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console.log("Unable to load session", e);
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const def = Promise.defer();
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const SessionRestoreErrorDialog =
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sdk.getComponent('views.dialogs.SessionRestoreErrorDialog');
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Modal.createTrackedDialog('Session Restore Error', '', SessionRestoreErrorDialog, {
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error: e.message,
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onFinished: (success) => {
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def.resolve(success);
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},
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});
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return def.promise.then((success) => {
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if (success) {
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// user clicked continue.
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_clearStorage();
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return false;
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}
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// try, try again
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return loadSession();
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});
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}
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let rtsClient = null;
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export function initRtsClient(url) {
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if (url) {
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rtsClient = new RtsClient(url);
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} else {
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rtsClient = null;
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}
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}
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/**
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* Transitions to a logged-in state using the given credentials.
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*
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* Starts the matrix client and all other react-sdk services that
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* listen for events while a session is logged in.
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*
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* Also stops the old MatrixClient and clears old credentials/etc out of
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* storage before starting the new client.
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*
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* @param {MatrixClientCreds} credentials The credentials to use
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*
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* @returns {Promise} promise which resolves to the new MatrixClient once it has been started
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*/
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export function setLoggedIn(credentials) {
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stopMatrixClient();
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return _doSetLoggedIn(credentials, true);
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}
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/**
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* fires on_logging_in, optionally clears localstorage, persists new credentials
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* to localstorage, starts the new client.
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*
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* @param {MatrixClientCreds} credentials
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* @param {Boolean} clearStorage
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*
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* @returns {Promise} promise which resolves to the new MatrixClient once it has been started
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*/
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async function _doSetLoggedIn(credentials, clearStorage) {
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credentials.guest = Boolean(credentials.guest);
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console.log(
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"setLoggedIn: mxid: " + credentials.userId +
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" deviceId: " + credentials.deviceId +
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" guest: " + credentials.guest +
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" hs: " + credentials.homeserverUrl,
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);
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// This is dispatched to indicate that the user is still in the process of logging in
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// because `teamPromise` may take some time to resolve, breaking the assumption that
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// `setLoggedIn` takes an "instant" to complete, and dispatch `on_logged_in` a few ms
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// later than MatrixChat might assume.
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//
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// we fire it *synchronously* to make sure it fires before on_logged_in.
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// (dis.dispatch uses `setTimeout`, which does not guarantee ordering.)
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dis.dispatch({action: 'on_logging_in'}, true);
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if (clearStorage) {
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await _clearStorage();
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}
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Analytics.setLoggedIn(credentials.guest, credentials.homeserverUrl, credentials.identityServerUrl);
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// Resolves by default
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let teamPromise = Promise.resolve(null);
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if (localStorage) {
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try {
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_persistCredentialsToLocalStorage(credentials);
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// The user registered as a PWLU (PassWord-Less User), the generated password
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// is cached here such that the user can change it at a later time.
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if (credentials.password) {
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// Update SessionStore
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dis.dispatch({
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action: 'cached_password',
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cachedPassword: credentials.password,
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});
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}
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} catch (e) {
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console.warn("Error using local storage: can't persist session!", e);
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}
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if (rtsClient && !credentials.guest) {
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teamPromise = rtsClient.login(credentials.userId).then((body) => {
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if (body.team_token) {
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localStorage.setItem("mx_team_token", body.team_token);
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}
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return body.team_token;
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}, (err) => {
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console.warn(`Failed to get team token on login: ${err}` );
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return null;
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});
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}
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} else {
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console.warn("No local storage available: can't persist session!");
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}
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MatrixClientPeg.replaceUsingCreds(credentials);
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teamPromise.then((teamToken) => {
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dis.dispatch({action: 'on_logged_in', teamToken: teamToken});
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});
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await startMatrixClient();
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return MatrixClientPeg.get();
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}
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function _persistCredentialsToLocalStorage(credentials) {
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localStorage.setItem("mx_hs_url", credentials.homeserverUrl);
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localStorage.setItem("mx_is_url", credentials.identityServerUrl);
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localStorage.setItem("mx_user_id", credentials.userId);
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localStorage.setItem("mx_access_token", credentials.accessToken);
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localStorage.setItem("mx_is_guest", JSON.stringify(credentials.guest));
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// if we didn't get a deviceId from the login, leave mx_device_id unset,
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// rather than setting it to "undefined".
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//
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// (in this case MatrixClient doesn't bother with the crypto stuff
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// - that's fine for us).
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if (credentials.deviceId) {
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localStorage.setItem("mx_device_id", credentials.deviceId);
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}
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console.log(`Session persisted for ${credentials.userId}`);
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}
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/**
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* Logs the current session out and transitions to the logged-out state
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*/
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export function logout() {
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if (!MatrixClientPeg.get()) return;
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if (MatrixClientPeg.get().isGuest()) {
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// logout doesn't work for guest sessions
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// Also we sometimes want to re-log in a guest session
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// if we abort the login
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// use settimeout to avoid racing with react unmounting components
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// which need a valid matrixclientpeg
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setTimeout(()=>{
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onLoggedOut();
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}, 0);
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return;
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}
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MatrixClientPeg.get().logout().then(onLoggedOut,
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(err) => {
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// Just throwing an error here is going to be very unhelpful
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// if you're trying to log out because your server's down and
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// you want to log into a different server, so just forget the
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// access token. It's annoying that this will leave the access
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// token still valid, but we should fix this by having access
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// tokens expire (and if you really think you've been compromised,
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// change your password).
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console.log("Failed to call logout API: token will not be invalidated");
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onLoggedOut();
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},
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).done();
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}
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/**
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* Starts the matrix client and all other react-sdk services that
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* listen for events while a session is logged in.
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*/
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async function startMatrixClient() {
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console.log(`Lifecycle: Starting MatrixClient`);
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// dispatch this before starting the matrix client: it's used
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// to add listeners for the 'sync' event so otherwise we'd have
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// a race condition (and we need to dispatch synchronously for this
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// to work).
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dis.dispatch({action: 'will_start_client'}, true);
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Notifier.start();
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UserActivity.start();
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Presence.start();
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DMRoomMap.makeShared().start();
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await MatrixClientPeg.start();
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// dispatch that we finished starting up to wire up any other bits
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// of the matrix client that cannot be set prior to starting up.
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dis.dispatch({action: 'client_started'});
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}
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/*
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* Stops a running client and all related services, and clears persistent
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* storage. Used after a session has been logged out.
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*/
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export function onLoggedOut() {
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stopMatrixClient();
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_clearStorage().done();
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dis.dispatch({action: 'on_logged_out'});
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}
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/**
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* @returns {Promise} promise which resolves once the stores have been cleared
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*/
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function _clearStorage() {
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Analytics.logout();
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if (window.localStorage) {
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const hsUrl = window.localStorage.getItem("mx_hs_url");
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const isUrl = window.localStorage.getItem("mx_is_url");
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window.localStorage.clear();
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// preserve our HS & IS URLs for convenience
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// N.B. we cache them in hsUrl/isUrl and can't really inline them
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// as getCurrentHsUrl() may call through to localStorage.
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// NB. We do clear the device ID (as well as all the settings)
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if (hsUrl) window.localStorage.setItem("mx_hs_url", hsUrl);
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if (isUrl) window.localStorage.setItem("mx_is_url", isUrl);
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}
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// create a temporary client to clear out the persistent stores.
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const cli = createMatrixClient({
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// we'll never make any requests, so can pass a bogus HS URL
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baseUrl: "",
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});
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return cli.clearStores();
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}
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/**
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* Stop all the background processes related to the current client.
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*/
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export function stopMatrixClient() {
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Notifier.stop();
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UserActivity.stop();
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Presence.stop();
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if (DMRoomMap.shared()) DMRoomMap.shared().stop();
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const cli = MatrixClientPeg.get();
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if (cli) {
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cli.stopClient();
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cli.removeAllListeners();
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MatrixClientPeg.unset();
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}
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}
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