chrome/common/extensions/request_media_access_permission_helper.cc

   1 // Copyright (c) 2012 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 #include "chrome/common/extensions/request_media_access_permission_helper.h"
   6
   7 #include "chrome/common/extensions/feature_switch.h"
   8
   9 namespace extensions {
  10
  11 // static
  12 void RequestMediaAccessPermissionHelper::AuthorizeRequest(
  13     const content::MediaStreamRequest* request,
  14     const content::MediaResponseCallback& callback,
  15     const extensions::Extension* extension,
  16     bool is_packaged_app) {
  17   content::MediaStreamDevices devices;
  18
  19   bool accepted_an_audio_device = false;
  20   bool accepted_a_video_device = false;
  21   for (content::MediaStreamDeviceMap::const_iterator it =
  22        request->devices.begin(); it != request->devices.end(); ++it) {
  23     if (!accepted_an_audio_device &&
  24         content::IsAudioMediaType(it->first) &&
  25         !it->second.empty()) {
  26       // Require flag and tab capture permission for tab media.
  27       // Require audio capture permission for packaged apps.
  28       if ((it->first == content::MEDIA_TAB_AUDIO_CAPTURE &&
  29            extensions::FeatureSwitch::tab_capture()->IsEnabled() &&
  30            extension->HasAPIPermission(APIPermission::kTabCapture)) ||
  31           (it->first == content::MEDIA_DEVICE_AUDIO_CAPTURE &&
  32            is_packaged_app &&
  33            extension->HasAPIPermission(APIPermission::kAudioCapture))) {
  34         devices.push_back(it->second.front());
  35         accepted_an_audio_device = true;
  36       }
  37     } else if (!accepted_a_video_device &&
  38                content::IsVideoMediaType(it->first) &&
  39                !it->second.empty()) {
  40       // Require flag and tab capture permission for tab media.
  41       // Require video capture permission for packaged apps.
  42       if ((it->first == content::MEDIA_TAB_VIDEO_CAPTURE &&
  43            extensions::FeatureSwitch::tab_capture()->IsEnabled() &&
  44            extension->HasAPIPermission(APIPermission::kTabCapture)) ||
  45           (it->first == content::MEDIA_DEVICE_VIDEO_CAPTURE &&
  46            is_packaged_app &&
  47            extension->HasAPIPermission(APIPermission::kVideoCapture))) {
  48         devices.push_back(it->second.front());
  49         accepted_a_video_device = true;
  50       }
  51     }
  52   }
  53
  54   callback.Run(devices);
  55 }
  56
  57 }  // namespace extensions