Call the logout API when we log out

Also try to refactor some of the login/logout code out of MatrixChat and into a separate Lifecycle.js. This still isn't great, but it at least gets some code out of MatrixClient.

src/CallHandler.js

@@ -181,11 +181,11 @@ function _onAction(payload) {
             console.error("Unknown conf call type: %s", payload.type);
         }
     }
-    var ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
 
     switch (payload.action) {
         case 'place_call':
             if (module.exports.getAnyActiveCall()) {
+                const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
                 Modal.createDialog(ErrorDialog, {
                     title: "Existing Call",
                     description: "You are already in a call."
@@ -195,6 +195,7 @@ function _onAction(payload) {
 
             // if the runtime env doesn't do VoIP, whine.
             if (!MatrixClientPeg.get().supportsVoip()) {
+                const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
                 Modal.createDialog(ErrorDialog, {
                     title: "VoIP is unsupported",
                     description: "You cannot place VoIP calls in this browser."
@@ -210,7 +211,7 @@ function _onAction(payload) {
 
             var members = room.getJoinedMembers();
             if (members.length <= 1) {
-                var ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
+                const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
                 Modal.createDialog(ErrorDialog, {
                     description: "You cannot place a call with yourself."
                 });
@@ -236,11 +237,13 @@ function _onAction(payload) {
         case 'place_conference_call':
             console.log("Place conference call in %s", payload.room_id);
             if (!ConferenceHandler) {
+                const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
                 Modal.createDialog(ErrorDialog, {
                     description: "Conference calls are not supported in this client"
                 });
             }
             else if (!MatrixClientPeg.get().supportsVoip()) {
+                const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
                 Modal.createDialog(ErrorDialog, {
                     title: "VoIP is unsupported",
                     description: "You cannot place VoIP calls in this browser."

src/Lifecycle.js

@@ -0,0 +1,98 @@
+/*
+Copyright 2015, 2016 OpenMarket Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import MatrixClientPeg from './MatrixClientPeg';
+import Notifier from './Notifier'
+import UserActivity from './UserActivity';
+import Presence from './Presence';
+import dis from './dispatcher';
+
+function login(credentials, options) {
+    credentials.guest = Boolean(credentials.guest);
+    console.log("onLoggedIn => %s (guest=%s)", credentials.userId, credentials.guest);
+    MatrixClientPeg.replaceUsingAccessToken(
+        credentials.homeserverUrl, credentials.identityServerUrl,
+        credentials.userId, credentials.accessToken, credentials.guest
+    );
+
+    dis.dispatch({action: 'on_logged_in'});
+
+    startMatrixClient(options);
+}
+
+function logout() {
+    if (MatrixClientPeg.get().isGuest()) {
+        // logout doesn't work for guest sessions
+        // Also we sometimes want to re-log in a guest session
+        // if we abort the login
+        _onLoggedOut();
+        return;
+    }
+
+    return MatrixClientPeg.get().logout().then(_onLoggedOut,
+        // Just throwing an error here is going to be very unhelpful
+        // if you're trying to log out because your server's down and
+        // you want to log into a different server, so just forget the
+        // access token. It's annoying that this will leave the access
+        // token still valid, but we should fix this by having access
+        // tokens expire (and if you really think you've been compromised,
+        // change your password).
+        _onLoggedOut
+    );
+}
+
+function startMatrixClient(options) {
+    // dispatch this before starting the matrix client: it's used
+    // to add listeners for the 'sync' event so otherwise we'd have
+    // a race condition (and we need to dispatch synchronously for this
+    // to work).
+    dis.dispatch({action: 'will_start_client'}, true);
+
+    Notifier.start();
+    UserActivity.start();
+    Presence.start();
+    MatrixClientPeg.get().startClient(MatrixClientPeg.opts);
+}
+
+function _onLoggedOut() {
+    if (window.localStorage) {
+        const hsUrl = window.localStorage.getItem("mx_hs_url");
+        const isUrl = window.localStorage.getItem("mx_is_url");
+        window.localStorage.clear();
+        // preserve our HS & IS URLs for convenience
+        // N.B. we cache them in hsUrl/isUrl and can't really inline them
+        // as getCurrentHsUrl() may call through to localStorage.
+        if (hsUrl) window.localStorage.setItem("mx_hs_url", hsUrl);
+        if (isUrl) window.localStorage.setItem("mx_is_url", isUrl);
+    }
+    _stopMatrixClient();
+
+    dis.dispatch({action: 'on_logged_out'});
+}
+
+// stop all the background processes related to the current client
+function _stopMatrixClient() {
+    Notifier.stop();
+    UserActivity.stop();
+    Presence.stop();
+    MatrixClientPeg.get().stopClient();
+    MatrixClientPeg.get().removeAllListeners();
+    MatrixClientPeg.unset();
+}
+
+module.exports = {
+    login, logout, startMatrixClient
+};

src/MatrixClientPeg.js

@@ -40,6 +40,14 @@ function deviceId() {
 class MatrixClientPeg {
     constructor() {
         this.matrixClient = null;
+
+        // These are the default options used when Lifecycle.js
+        // starts the client. These can be altered when the
+        // 'will_start_client' event is dispatched.
+        this.opts = {
+            pendingEventOrdering: "detached",
+            initialSyncLimit: 20,
+        };
     }
 
     get(): MatrixClient {
@@ -96,13 +104,13 @@ class MatrixClientPeg {
     }
 
     getCredentials() {
-        return [
-            this.matrixClient.baseUrl,
-            this.matrixClient.idBaseUrl,
-            this.matrixClient.credentials.userId,
-            this.matrixClient.getAccessToken(),
-            this.matrixClient.isGuest(),
-        ];
+        return {
+            homeserverUrl: this.matrixClient.baseUrl,
+            identityServerUrl: this.matrixClient.idBaseUrl,
+            userId: this.matrixClient.credentials.userId,
+            accessToken: this.matrixClient.getAccessToken(),
+            guest: this.matrixClient.isGuest(),
+        };
     }
 
     tryRestore() {

src/components/structures/MatrixChat.js

@@ -36,6 +36,7 @@ var sdk = require('../../index');
 var MatrixTools = require('../../MatrixTools');
 var linkifyMatrix = require("../../linkify-matrix");
 var KeyCode = require('../../KeyCode');
+var Lifecycle = require('../../Lifecycle');
 
 var createRoom = require("../../createRoom");
 
@@ -140,6 +141,7 @@ module.exports = React.createClass({
 
     componentWillMount: function() {
         this.favicon = new Favico({animation: 'none'});
+        this.guestCreds = null;
     },
 
     componentDidMount: function() {
@@ -156,7 +158,7 @@ module.exports = React.createClass({
                 this.props.startingQueryParams.guest_access_token)
             {
                 this._autoRegisterAsGuest = false;
-                this.onLoggedIn({
+                this._onHaveCredentials({
                     userId: this.props.startingQueryParams.guest_user_id,
                     accessToken: this.props.startingQueryParams.guest_access_token,
                     homeserverUrl: this.getDefaultHsUrl(),
@@ -174,7 +176,7 @@ module.exports = React.createClass({
             // Don't auto-register as a guest. This applies if you refresh the page on a
             // logged in client THEN hit the Sign Out button.
             this._autoRegisterAsGuest = false;
-            this.startMatrixClient();
+            Lifecycle.startMatrixClient();
         }
         this.focusComposer = false;
         // scrollStateMap is a map from room id to the scroll state returned by
@@ -229,7 +231,7 @@ module.exports = React.createClass({
         MatrixClientPeg.get().registerGuest().done(function(creds) {
             console.log("Registered as guest: %s", creds.user_id);
             self._setAutoRegisterAsGuest(false);
-            self.onLoggedIn({
+            self._onHaveCredentials({
                 userId: creds.user_id,
                 accessToken: creds.access_token,
                 homeserverUrl: hsUrl,
@@ -260,34 +262,10 @@ module.exports = React.createClass({
         var self = this;
         switch (payload.action) {
             case 'logout':
-                var guestCreds;
                 if (MatrixClientPeg.get().isGuest()) {
-                    guestCreds = { // stash our guest creds so we can backout if needed
-                        userId: MatrixClientPeg.get().credentials.userId,
-                        accessToken: MatrixClientPeg.get().getAccessToken(),
-                        homeserverUrl: MatrixClientPeg.get().getHomeserverUrl(),
-                        identityServerUrl: MatrixClientPeg.get().getIdentityServerUrl(),
-                        guest: true
+                    this.guestCreds = MatrixClientPeg.getCredentials();
                 }
-                }
-
-                if (window.localStorage) {
-                    var hsUrl = this.getCurrentHsUrl();
-                    var isUrl = this.getCurrentIsUrl();
-                    window.localStorage.clear();
-                    // preserve our HS & IS URLs for convenience
-                    // N.B. we cache them in hsUrl/isUrl and can't really inline them
-                    // as getCurrentHsUrl() may call through to localStorage.
-                    window.localStorage.setItem("mx_hs_url", hsUrl);
-                    window.localStorage.setItem("mx_is_url", isUrl);
-                }
-                this._stopMatrixClient();
-                this.notifyNewScreen('login');
-                this.replaceState({
-                    logged_in: false,
-                    ready: false,
-                    guestCreds: guestCreds,
-                });
+                Lifecycle.logout();
                 break;
             case 'start_registration':
                 var newState = payload.params || {};
@@ -313,7 +291,6 @@ module.exports = React.createClass({
                 if (this.state.logged_in) return;
                 this.replaceState({
                     screen: 'login',
-                    guestCreds: this.state.guestCreds,
                 });
                 this.notifyNewScreen('login');
                 break;
@@ -323,17 +300,14 @@ module.exports = React.createClass({
                 });
                 break;
             case 'start_upgrade_registration':
+                // stash our guest creds so we can backout if needed
+                if (MatrixClientPeg.get().isGuest()) {
+                    this.guestCreds = MatrixClientPeg.getCredentials();
+                }
                 this.replaceState({
                     screen: "register",
                     upgradeUsername: MatrixClientPeg.get().getUserIdLocalpart(),
                     guestAccessToken: MatrixClientPeg.get().getAccessToken(),
-                    guestCreds: { // stash our guest creds so we can backout if needed
-                        userId: MatrixClientPeg.get().credentials.userId,
-                        accessToken: MatrixClientPeg.get().getAccessToken(),
-                        homeserverUrl: MatrixClientPeg.get().getHomeserverUrl(),
-                        identityServerUrl: MatrixClientPeg.get().getIdentityServerUrl(),
-                        guest: true
-                    }
                 });
                 this.notifyNewScreen('register');
                 break;
@@ -482,6 +456,15 @@ module.exports = React.createClass({
                     middleOpacity: payload.middleOpacity,
                 });
                 break;
+            case 'on_logged_in':
+                this._onLoggedIn();
+                break;
+            case 'on_logged_out':
+                this._onLoggedOut();
+                break;
+            case 'will_start_client':
+                this._onWillStartClient();
+                break;
         }
     },
 
@@ -592,23 +575,40 @@ module.exports = React.createClass({
         this.scrollStateMap[roomId] = state;
     },
 
-    onLoggedIn: function(credentials) {
-        credentials.guest = Boolean(credentials.guest);
-        console.log("onLoggedIn => %s (guest=%s)", credentials.userId, credentials.guest);
-        MatrixClientPeg.replaceUsingAccessToken(
-            credentials.homeserverUrl, credentials.identityServerUrl,
-            credentials.userId, credentials.accessToken, credentials.guest
-        );
-        this.setState({
-            screen: undefined,
-            logged_in: true
+    _doLogin(creds) {
+        Lifecycle.login(creds, {
+            syncTimelineLimit: this.props.config.sync_timeline_limit,
         });
-        this.startMatrixClient();
-        this.notifyNewScreen('');
     },
 
-    startMatrixClient: function() {
+    _onHaveCredentials: function(credentials) {
+        credentials.guest = Boolean(credentials.guest);
+        Lifecycle.login(credentials);
+    },
+
+    _onLoggedIn: function(credentials) {
+        this.guestCreds = null;
+        this.setState({
+            screen: undefined,
+            logged_in: true,
+        });
+    },
+
+    _onLoggedOut: function() {
+        this.notifyNewScreen('login');
+        this.replaceState({
+            logged_in: false,
+            ready: false,
+        });
+    },
+
+    _onWillStartClient() {
         var cli = MatrixClientPeg.get();
+
+        if (this.props.config.sync_timeline_limit) {
+            MatrixClientPeg.opts.initialSyncLimit = this.props.config.sync_timeline_limit;
+        }
+
         var self = this;
         cli.on('sync', function(state, prevState) {
             self.updateFavicon(state, prevState);
@@ -675,13 +675,6 @@ module.exports = React.createClass({
                 action: 'logout'
             });
         });
-        Notifier.start();
-        UserActivity.start();
-        Presence.start();
-        cli.startClient({
-            pendingEventOrdering: "detached",
-            initialSyncLimit: this.props.config.sync_timeline_limit || 20,
-        });
     },
 
     // stop all the background processes related to the current client
@@ -919,12 +912,14 @@ module.exports = React.createClass({
 
     onReturnToGuestClick: function() {
         // reanimate our guest login
-        this.onLoggedIn(this.state.guestCreds);
-        this.setState({ guestCreds: null });
+        if (this.guestCreds) {
+            this._onHaveCredentials(this.guestCreds);
+            this.guestCreds = null;
+        }
     },
 
     onRegistered: function(credentials) {
-        this.onLoggedIn(credentials);
+        this._onHaveCredentials(credentials);
         // do post-registration stuff
         // This now goes straight to user settings
         // We use _setPage since if we wait for
@@ -1130,7 +1125,7 @@ module.exports = React.createClass({
                     onLoggedIn={this.onRegistered}
                     onLoginClick={this.onLoginClick}
                     onRegisterClick={this.onRegisterClick}
-                    onCancelClick={ this.state.guestCreds ? this.onReturnToGuestClick : null }
+                    onCancelClick={this.guestCreds ? this.onReturnToGuestClick : null}
                     />
             );
         } else if (this.state.screen == 'forgot_password') {
@@ -1146,7 +1141,7 @@ module.exports = React.createClass({
         } else {
             return (
                 <Login
-                    onLoggedIn={this.onLoggedIn}
+                    onLoggedIn={this._onHaveCredentials}
                     onRegisterClick={this.onRegisterClick}
                     defaultHsUrl={this.getDefaultHsUrl()}
                     defaultIsUrl={this.getDefaultIsUrl()}
@@ -1155,7 +1150,7 @@ module.exports = React.createClass({
                     fallbackHsUrl={this.getFallbackHsUrl()}
                     onForgotPasswordClick={this.onForgotPasswordClick}
                     onLoginAsGuestClick={this.props.enableGuest && this.props.config && this._registerAsGuest.bind(this, true)}
-                    onCancelClick={ this.state.guestCreds ? this.onReturnToGuestClick : null }
+                    onCancelClick={this.guestCreds ? this.onReturnToGuestClick : null}
                     />
             );
         }