chrome/browser/resources/cryptotoken/cryptotokenapprovedorigins.js

   1 // Copyright 2014 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 /**
   6  * @fileoverview Provides an implementation of approved origins that relies
   7  * on the chrome.cryptotokenPrivate.requestPermission API.
   8  * (and only) allows google.com to use security keys.
   9  *
  10  */
  11 'use strict';
  12
  13 /**
  14  * Allows the caller to check whether the user has approved the use of
  15  * security keys from an origin.
  16  * @constructor
  17  * @implements {ApprovedOrigins}
  18  */
  19 function CryptoTokenApprovedOrigin() {}
  20
  21 /**
  22  * Checks whether the origin is approved to use security keys. (If not, an
  23  * approval prompt may be shown.)
  24  * @param {string} origin The origin to approve.
  25  * @param {number=} opt_tabId A tab id to display approval prompt in.
  26  *     For this implementation, the tabId is always necessary, even though
  27  *     the type allows undefined.
  28  * @return {Promise<boolean>} A promise for the result of the check.
  29  */
  30 CryptoTokenApprovedOrigin.prototype.isApprovedOrigin =
  31     function(origin, opt_tabId) {
  32   return new Promise(function(resolve, reject) {
  33       if (opt_tabId === undefined) {
  34         resolve(false);
  35         return;
  36       }
  37       var tabId = /** @type {number} */ (opt_tabId);
  38       tabInForeground(tabId).then(function(result) {
  39         if (!result) {
  40           resolve(false);
  41           return;
  42         }
  43         if (!chrome.tabs || !chrome.tabs.get) {
  44           reject();
  45           return;
  46         }
  47         chrome.tabs.get(tabId, function(tab) {
  48           if (chrome.runtime.lastError) {
  49             resolve(false);
  50             return;
  51           }
  52           var tabOrigin = getOriginFromUrl(tab.url);
  53           resolve(tabOrigin == origin);
  54         });
  55       });
  56   });
  57 };