fetching email address from tokeninfo oauth endpoint works

src/js/app-controller.js

@@ -39,9 +39,10 @@ define(['jquery', 'ImapClient', 'SmtpClient', 'js/dao/email-dao', 'js/dao/keycha
 	self.execute = function(cmd, args, callback) {
 		if (cmd === 'login') {
 			// login user
-			fetchOAuthToken(args.userId, args.password, function(err) {
+			fetchOAuthToken(args.password, function(err, userId) {
 				callback({
-					err: err
+					err: err,
+					userId: userId
 				});
 			});
 
@@ -92,13 +93,32 @@ define(['jquery', 'ImapClient', 'SmtpClient', 'js/dao/email-dao', 'js/dao/keycha
 	// Helper methods
 	//
 
-	function fetchOAuthToken(userId, password, callback) {
+	function fetchOAuthToken(password, callback) {
 		// get OAuth Token from chrome
 		chrome.identity.getAuthToken({
 				'interactive': true
 			},
 			function(token) {
-				login(userId, password, token, callback);
+				// fetch gmail user's email address from the Google Authorization Server endpoint
+				$.ajax({
+					url: 'https://www.googleapis.com/oauth2/v1/tokeninfo?access_token=' + token,
+					type: 'GET',
+					dataType: 'json',
+					success: function(info) {
+						// login using the received email address
+						login(info.email, password, token, function(err) {
+							// send email address to sandbox
+							callback(err, info.email);
+						});
+					},
+					error: function(xhr, textStatus, err) {
+						callback({
+							errMsg: xhr.status + ': ' + xhr.statusText,
+							err: err
+						});
+					}
+				});
+
 			}
 		);
 	}

src/js/view/login-view.js

@@ -46,7 +46,7 @@ define(['jquery', 'underscore', 'backbone', 'js/app-config'], function($, _, Bac
 					return;
 				}
 
-				window.location = '#accounts/' + userId + '/folders';
+				window.location = '#accounts/' + resArgs.userId + '/folders';
 			});
 		}
 	});

src/manifest.json

@@ -17,6 +17,7 @@
   "oauth2": {
     "client_id": "440907777130.apps.googleusercontent.com",
     "scopes": [
+      "https://www.googleapis.com/auth/userinfo.email",
       "https://mail.google.com/"
     ]
   },

src/tpl/login.html

@@ -7,7 +7,7 @@
   <div id="loginForm">
     <h3>Please sign in</h3>
     <label for="userId" class="ui-hidden-accessible">Username:</label>
-    <input type="email" name="user" id="userId" value="safewithme.testuser@gmail.com" placeholder="user" data-theme="a">
+    <input type="email" name="user" id="userId" value="" placeholder="user" data-theme="a">
     <label for="password" class="ui-hidden-accessible">Password:</label>
     <input type="password" name="pass" id="password" value="passphrase" placeholder="password" data-theme="a">
     <input type="button" data-theme="b" data-icon="check" id="loginBtn" value="Sign in">