chrome/browser/media/protected_media_identifier_permission_context.h

   1 // Copyright 2013 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 #ifndef CHROME_BROWSER_MEDIA_PROTECTED_MEDIA_IDENTIFIER_PERMISSION_CONTEXT_H_
   6 #define CHROME_BROWSER_MEDIA_PROTECTED_MEDIA_IDENTIFIER_PERMISSION_CONTEXT_H_
   7
   8 #include "chrome/browser/content_settings/permission_context_base.h"
   9 #include "components/content_settings/core/common/permission_request_id.h"
  10
  11 #if defined(OS_CHROMEOS)
  12 #include <map>
  13
  14 #include "base/memory/weak_ptr.h"
  15 #include "chrome/browser/chromeos/attestation/platform_verification_dialog.h"
  16 #include "chrome/browser/chromeos/attestation/platform_verification_flow.h"
  17 #endif
  18
  19 class Profile;
  20
  21 namespace views {
  22 class Widget;
  23 }
  24
  25 namespace content {
  26 class RenderViewHost;
  27 class WebContents;
  28 }
  29
  30 // Manages protected media identifier permissions flow, and delegates UI
  31 // handling via PermissionQueueController.
  32 class ProtectedMediaIdentifierPermissionContext
  33     : public PermissionContextBase {
  34  public:
  35   explicit ProtectedMediaIdentifierPermissionContext(Profile* profile);
  36
  37   // In addition to the base class flow checks that it is only code from
  38   // valid iframes. It also adds special logic when called through an extension.
  39   void RequestPermission(content::WebContents* web_contents,
  40                          const PermissionRequestID& id,
  41                          const GURL& requesting_origin,
  42                          bool user_gesture,
  43                          const BrowserPermissionCallback& callback) override;
  44   ContentSetting GetPermissionStatus(
  45       const GURL& requesting_origin,
  46       const GURL& embedding_origin) const override;
  47   void CancelPermissionRequest(content::WebContents* web_contents,
  48                                const PermissionRequestID& id) override;
  49
  50  private:
  51   ~ProtectedMediaIdentifierPermissionContext() override;
  52
  53   void UpdateTabContext(const PermissionRequestID& id,
  54                         const GURL& requesting_frame,
  55                         bool allowed) override;
  56
  57   // Returns whether "Protected content" is enabled. It can be disabled by a
  58   // user in the master switch in content settings, or by the device policy.
  59   bool IsProtectedMediaIdentifierEnabled() const;
  60
  61 #if defined(OS_CHROMEOS)
  62   void OnPlatformVerificationResult(
  63       content::WebContents* web_contents,
  64       const PermissionRequestID& id,
  65       const GURL& requesting_origin,
  66       const GURL& embedding_origin,
  67       const BrowserPermissionCallback& callback,
  68       chromeos::attestation::PlatformVerificationFlow::ConsentResponse
  69           response);
  70
  71   // |this| is shared among multiple WebContents, so we could receive multiple
  72   // permission requests. This map tracks all pending requests. Note that we
  73   // only allow one request per WebContents.
  74   typedef std::map<content::WebContents*,
  75                    std::pair<views::Widget*, PermissionRequestID>>
  76       PendingRequestMap;
  77   PendingRequestMap pending_requests_;
  78
  79   // Must be the last member, to ensure that it will be
  80   // destroyed first, which will invalidate weak pointers
  81   base::WeakPtrFactory<ProtectedMediaIdentifierPermissionContext> weak_factory_;
  82 #endif
  83
  84   DISALLOW_COPY_AND_ASSIGN(ProtectedMediaIdentifierPermissionContext);
  85 };
  86
  87 #endif  // CHROME_BROWSER_MEDIA_PROTECTED_MEDIA_IDENTIFIER_PERMISSION_CONTEXT_H_