Host Chrome OS GAIA signin page in webview

chrome/browser/resources/gaia_auth_host/authenticator.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview An UI component to authenciate to Chrome. The component hosts
  * IdP web pages in a webview. A client who is interested in monitoring
  * authentication events should pass a listener object of type
  * cr.login.GaiaAuthHost.Listener as defined in this file. After initialization,
  * call {@code load} to start the authentication flow.
  */
 cr.define('cr.login', function() {
   'use strict';
 
   // TODO(rogerta): should use gaia URL from GaiaUrls::gaia_url() instead
   // of hardcoding the prod URL here.  As is, this does not work with staging
   // environments.
   var IDP_ORIGIN = 'https://accounts.google.com/';
   var IDP_PATH = 'ServiceLogin?skipvpage=true&sarp=1&rm=hide';
   var CONTINUE_URL =
       'chrome-extension://mfffpogegjflfpflabcdkioaeobkgjik/success.html';
   var SIGN_IN_HEADER = 'google-accounts-signin';
   var EMBEDDED_FORM_HEADER = 'google-accounts-embedded';
   var SAML_HEADER = 'google-accounts-saml';
+  var SERVICE_ID = 'chromeoslogin';
 
   /**
    * The source URL parameter for the constrained signin flow.
    */
   var CONSTRAINED_FLOW_SOURCE = 'chrome';
 
   /**
    * Enum for the authorization mode, must match AuthMode defined in
    * chrome/browser/ui/webui/inline_login_ui.cc.
    * @enum {number}
@@ skipping 71 matching lines @@
             types: ['main_frame']},
         ['responseHeaders']);
     this.webview_.request.onHeadersReceived.addListener(
         this.onHeadersReceived_.bind(this),
         {urls: [this.idpOrigin_ + '*'], types: ['main_frame']},
         ['responseHeaders']);
     window.addEventListener(
         'message', this.onMessageFromWebview_.bind(this), false);
     window.addEventListener(
         'popstate', this.onPopState_.bind(this), false);
+
+    this.loaded_ = false;
   };
 
   /**
    * Reloads the authenticator component.
    */
   Authenticator.prototype.reload = function() {
     this.webview_.src = this.reloadUrl_;
     this.authFlow_ = AuthFlow.DEFAULT;
+    this.loaded_ = false;
   };
 
   Authenticator.prototype.constructInitialFrameUrl_ = function(data) {
     var url = this.idpOrigin_ + (data.gaiaPath || IDP_PATH);
 
     url = appendParam(url, 'continue', this.continueUrl_);
-    url = appendParam(url, 'service', data.service);
+    url = appendParam(url, 'service', data.service || SERVICE_ID);
     if (data.hl)
       url = appendParam(url, 'hl', data.hl);
     if (data.email)
       url = appendParam(url, 'Email', data.email);
     if (this.isConstrainedWindow_)
       url = appendParam(url, 'source', CONSTRAINED_FLOW_SOURCE);
     return url;
   };
 
   /**
@@ skipping 122 matching lines @@
   Authenticator.prototype.onAuthCompleted_ = function() {
     if (!this.email_ && !this.skipForNow_) {
       this.webview_.src = this.initialFrameUrl_;
       return;
     }
 
     this.dispatchEvent(
         new CustomEvent('authCompleted',
                         {detail: {email: this.email_,
                                   gaiaId: this.gaiaId_,
-                                  password: this.password_,
+                                  password: this.password_ || '',
                                   usingSAML: this.authFlow_ == AuthFlow.SAML,
                                   chooseWhatToSync: this.chooseWhatToSync_,
                                   skipForNow: this.skipForNow_,
                                   sessionIndex: this.sessionIndex_ || '',
                                   trusted: this.trusted_}}));
   };
 
   /**
    * Invoked when the webview attempts to open a new window.
    * @private
@@ skipping 16 matching lines @@
 
   Authenticator.AuthFlow = AuthFlow;
   Authenticator.AuthMode = AuthMode;
 
   return {
     // TODO(guohui, xiyuan): Rename GaiaAuthHost to Authenticator once the old
     // iframe-based flow is deprecated.
     GaiaAuthHost: Authenticator
   };
 });