remoting/webapp/crd/js/me2me_activity.js

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 /** @suppress {duplicate} */
   6 var remoting = remoting || {};
   7
   8 (function() {
   9
  10 'use strict';
  11
  12 /**
  13  * @param {remoting.Host} host
  14  * @param {remoting.HostList} hostList
  15  *
  16  * @constructor
  17  * @implements {remoting.Activity}
  18  */
  19 remoting.Me2MeActivity = function(host, hostList) {
  20   /** @private */
  21   this.host_ = host;
  22   /** @private */
  23   this.hostList_ = hostList;
  24   /** @private */
  25   this.pinDialog_ =
  26       new remoting.PinDialog(document.getElementById('pin-dialog'), host);
  27   /** @private */
  28   this.hostUpdateDialog_ = new remoting.HostNeedsUpdateDialog(
  29       document.getElementById('host-needs-update-dialog'), this.host_);
  30
  31   /** @private */
  32   this.retryOnHostOffline_ = true;
  33
  34   /** @private {remoting.SmartReconnector} */
  35   this.reconnector_ = null;
  36
  37   /** @private {remoting.DesktopRemotingActivity} */
  38   this.desktopActivity_ = null;
  39 };
  40
  41 remoting.Me2MeActivity.prototype.dispose = function() {
  42   base.dispose(this.desktopActivity_);
  43   this.desktopActivity_ = null;
  44 };
  45
  46 remoting.Me2MeActivity.prototype.start = function() {
  47   var webappVersion = chrome.runtime.getManifest().version;
  48   var that = this;
  49
  50   this.hostUpdateDialog_.showIfNecessary(webappVersion).then(function() {
  51     return that.host_.options.load();
  52   }).then(function() {
  53     that.connect_(true);
  54   }).catch(remoting.Error.handler(function(/** remoting.Error */ error) {
  55     if (error.hasTag(remoting.Error.Tag.CANCELLED)) {
  56       remoting.setMode(remoting.AppMode.HOME);
  57     }
  58   }));
  59 };
  60
  61 remoting.Me2MeActivity.prototype.stop = function() {
  62   if (this.desktopActivity_) {
  63     this.desktopActivity_.stop();
  64   }
  65 };
  66
  67 /** @return {remoting.DesktopRemotingActivity} */
  68 remoting.Me2MeActivity.prototype.getDesktopActivity = function() {
  69   return this.desktopActivity_;
  70 };
  71
  72 /**
  73  * @param {boolean} suppressHostOfflineError
  74  * @private
  75  */
  76 remoting.Me2MeActivity.prototype.connect_ = function(suppressHostOfflineError) {
  77   base.dispose(this.desktopActivity_);
  78   this.desktopActivity_ = new remoting.DesktopRemotingActivity(this);
  79   this.desktopActivity_.getConnectingDialog().show();
  80   this.desktopActivity_.start(this.host_, this.createCredentialsProvider_(),
  81                               suppressHostOfflineError);
  82 };
  83
  84 /**
  85  * @return {remoting.CredentialsProvider}
  86  * @private
  87  */
  88 remoting.Me2MeActivity.prototype.createCredentialsProvider_ = function() {
  89   var host = this.host_;
  90   var that = this;
  91
  92   /**
  93    * @param {string} tokenUrl Token-issue URL received from the host.
  94    * @param {string} hostPublicKey Host public key (DER and Base64 encoded).
  95    * @param {string} scope OAuth scope to request the token for.
  96    * @param {function(string, string):void} onThirdPartyTokenFetched Callback.
  97    */
  98   var fetchThirdPartyToken = function(
  99       tokenUrl, hostPublicKey, scope, onThirdPartyTokenFetched) {
 100     var thirdPartyTokenFetcher = new remoting.ThirdPartyTokenFetcher(
 101         tokenUrl, hostPublicKey, scope, host.tokenUrlPatterns,
 102         onThirdPartyTokenFetched);
 103     thirdPartyTokenFetcher.fetchToken();
 104   };
 105
 106   /**
 107    * @param {boolean} supportsPairing
 108    * @param {function(string):void} onPinFetched
 109    */
 110   var requestPin = function(supportsPairing, onPinFetched) {
 111     // Set time when PIN was requested.
 112     var authStartTime = new Date().getTime();
 113     that.desktopActivity_.getConnectingDialog().hide();
 114     that.pinDialog_.show(supportsPairing).then(function(/** string */ pin) {
 115       remoting.setMode(remoting.AppMode.CLIENT_CONNECTING);
 116       // Done obtaining PIN information. Log time taken for PIN entry.
 117       var logToServer = that.desktopActivity_.getSession().getLogger();
 118       logToServer.setAuthTotalTime(new Date().getTime() - authStartTime);
 119       onPinFetched(pin);
 120     }).catch(remoting.Error.handler(function(/** remoting.Error */ error) {
 121       console.assert(error.hasTag(remoting.Error.Tag.CANCELLED),
 122                     'Unexpected error: ' + error.getTag() + '.');
 123       remoting.setMode(remoting.AppMode.HOME);
 124       that.stop();
 125     }));
 126   };
 127
 128   return new remoting.CredentialsProvider({
 129     fetchPin: requestPin,
 130     pairingInfo: /** @type{remoting.PairingInfo} */ (
 131         base.deepCopy(host.options.pairingInfo)),
 132     fetchThirdPartyToken: fetchThirdPartyToken
 133   });
 134 };
 135
 136 /**
 137  * @param {!remoting.Error} error
 138  */
 139 remoting.Me2MeActivity.prototype.onConnectionFailed = function(error) {
 140   if (error.hasTag(remoting.Error.Tag.HOST_IS_OFFLINE) &&
 141       this.retryOnHostOffline_) {
 142     var that = this;
 143     var onHostListRefresh = function(/** boolean */ success) {
 144       if (success) {
 145         // Get the host from the hostList for the refreshed JID.
 146         that.host_ = that.hostList_.getHostForId(that.host_.hostId);
 147         that.connect_(false);
 148         return;
 149       }
 150       that.showErrorMessage_(error);
 151     };
 152     this.retryOnHostOffline_ = false;
 153
 154     // The plugin will be re-created when the host finished refreshing
 155     this.hostList_.refresh(onHostListRefresh);
 156   } else if (!error.isNone()) {
 157     this.showErrorMessage_(error);
 158   }
 159
 160   base.dispose(this.desktopActivity_);
 161   this.desktopActivity_ = null;
 162 };
 163
 164 /**
 165  * @param {!remoting.ConnectionInfo} connectionInfo
 166  */
 167 remoting.Me2MeActivity.prototype.onConnected = function(connectionInfo) {
 168   // Reset the refresh flag so that the next connection will retry if needed.
 169   this.retryOnHostOffline_ = true;
 170
 171   var plugin = connectionInfo.plugin();
 172   if (plugin.hasCapability(remoting.ClientSession.Capability.CAST)) {
 173     plugin.extensions().register(new remoting.CastExtensionHandler());
 174   }
 175   plugin.extensions().register(new remoting.GnubbyAuthHandler());
 176   this.pinDialog_.requestPairingIfNecessary(connectionInfo.plugin());
 177
 178   base.dispose(this.reconnector_);
 179   this.reconnector_ = new remoting.SmartReconnector(
 180       this.desktopActivity_.getConnectingDialog(),
 181       this.connect_.bind(this, false),
 182       this.stop.bind(this),
 183       connectionInfo.session());
 184 };
 185
 186 remoting.Me2MeActivity.prototype.onDisconnected = function(error) {
 187   if (error.isNone()) {
 188     this.showFinishDialog_(remoting.AppMode.CLIENT_SESSION_FINISHED_ME2ME);
 189   } else {
 190     this.reconnector_.onConnectionDropped(error);
 191     this.showErrorMessage_(error);
 192   }
 193
 194   base.dispose(this.desktopActivity_);
 195   this.desktopActivity_ = null;
 196 };
 197
 198 /**
 199  * @param {!remoting.Error} error
 200  * @private
 201  */
 202 remoting.Me2MeActivity.prototype.showErrorMessage_ = function(error) {
 203   var errorDiv = document.getElementById('connect-error-message');
 204   l10n.localizeElementFromTag(errorDiv, error.getTag());
 205   this.showFinishDialog_(remoting.AppMode.CLIENT_CONNECT_FAILED_ME2ME);
 206 };
 207
 208 /**
 209  * @param {remoting.AppMode} mode
 210  * @private
 211  */
 212 remoting.Me2MeActivity.prototype.showFinishDialog_ = function(mode) {
 213   var dialog = new remoting.MessageDialog(
 214       mode,
 215       document.getElementById('client-finished-me2me-button'),
 216       document.getElementById('client-reconnect-button'));
 217
 218   /** @typedef {remoting.MessageDialog.Result} */
 219   var Result = remoting.MessageDialog.Result;
 220   var that = this;
 221
 222   dialog.show().then(function(/** Result */result) {
 223     if (result === Result.PRIMARY) {
 224       remoting.setMode(remoting.AppMode.HOME);
 225     } else {
 226       that.connect_(true);
 227     }
 228   });
 229 };
 230
 231 /**
 232  * @param {HTMLElement} rootElement
 233  * @param {remoting.Host} host
 234  * @constructor
 235  */
 236 remoting.HostNeedsUpdateDialog = function(rootElement, host) {
 237   /** @private */
 238   this.host_ = host;
 239   /** @private */
 240   this.dialog_ = new remoting.MessageDialog(
 241       remoting.AppMode.CLIENT_HOST_NEEDS_UPGRADE,
 242       rootElement.querySelector('.connect-button'),
 243       rootElement.querySelector('.cancel-button'));
 244
 245   l10n.localizeElementFromTag(
 246       rootElement.querySelector('.host-needs-update-message'),
 247       /*i18n-content*/'HOST_NEEDS_UPDATE_TITLE', host.hostName);
 248 };
 249
 250 /**
 251  * Shows the HostNeedsUpdateDialog if the user is trying to connect to a legacy
 252  * host.
 253  *
 254  * @param {string} webappVersion
 255  * @return {Promise}  Promise that resolves when no update is required or
 256  *    when the user ignores the update warning.  Rejects with
 257  *    |remoting.Error.CANCELLED| if the user cancels the connection.
 258  */
 259 remoting.HostNeedsUpdateDialog.prototype.showIfNecessary =
 260     function(webappVersion) {
 261   if (!remoting.Host.needsUpdate(this.host_, webappVersion)) {
 262     return Promise.resolve();
 263   }
 264   /** @typedef {remoting.MessageDialog.Result} */
 265   var Result = remoting.MessageDialog.Result;
 266   return this.dialog_.show().then(function(/** Result */ result) {
 267     if (result === Result.SECONDARY) {
 268       return Promise.reject(new remoting.Error(remoting.Error.Tag.CANCELLED));
 269     }
 270   });
 271 };
 272
 273 /**
 274  * @param {HTMLElement} rootElement
 275  * @param {remoting.Host} host
 276  * @constructor
 277  */
 278 remoting.PinDialog = function(rootElement, host) {
 279   /** @private */
 280   this.rootElement_ = rootElement;
 281   /** @private */
 282   this.pairingCheckbox_ = rootElement.querySelector('.pairing-checkbox');
 283   /** @private */
 284   this.pinInput_ = rootElement.querySelector('.pin-inputField');
 285   /** @private */
 286   this.host_ = host;
 287   /** @private */
 288   this.dialog_ = new remoting.InputDialog(
 289     remoting.AppMode.CLIENT_PIN_PROMPT,
 290     this.rootElement_.querySelector('form'),
 291     this.pinInput_,
 292     this.rootElement_.querySelector('.cancel-button'));
 293 };
 294
 295
 296 /**
 297  * @param {boolean} supportsPairing
 298  * @return {Promise<string>}  Promise that resolves with the PIN or rejects with
 299  *    |remoting.Error.CANCELLED| if the user cancels the connection.
 300  */
 301 remoting.PinDialog.prototype.show = function(supportsPairing) {
 302   // Reset the UI.
 303   this.pairingCheckbox_.checked = false;
 304   this.rootElement_.querySelector('.pairing-section').hidden = !supportsPairing;
 305   var message = this.rootElement_.querySelector('.pin-message');
 306   l10n.localizeElement(message, this.host_.hostName);
 307   this.pinInput_.value = '';
 308   return this.dialog_.show();
 309 };
 310
 311 /**
 312  * @param {remoting.ClientPlugin} plugin
 313  */
 314 remoting.PinDialog.prototype.requestPairingIfNecessary = function(plugin) {
 315   if (this.pairingCheckbox_.checked) {
 316     var that = this;
 317     /**
 318      * @param {string} clientId
 319      * @param {string} sharedSecret
 320      */
 321     var onPairingComplete = function(clientId, sharedSecret) {
 322       that.host_.options.pairingInfo.clientId = clientId;
 323       that.host_.options.pairingInfo.sharedSecret = sharedSecret;
 324       that.host_.options.save();
 325     };
 326
 327     // Use the platform name as a proxy for the local computer name.
 328     // TODO(jamiewalch): Use a descriptive name for the local computer, for
 329     // example, its Chrome Sync name.
 330     var clientName = '';
 331     if (remoting.platformIsMac()) {
 332       clientName = 'Mac';
 333     } else if (remoting.platformIsWindows()) {
 334       clientName = 'Windows';
 335     } else if (remoting.platformIsChromeOS()) {
 336       clientName = 'ChromeOS';
 337     } else if (remoting.platformIsLinux()) {
 338       clientName = 'Linux';
 339     } else {
 340       console.log('Unrecognized client platform. Using navigator.platform.');
 341       clientName = navigator.platform;
 342     }
 343     plugin.requestPairing(clientName, onPairingComplete);
 344   }
 345 };
 346
 347 })();