chrome/renderer/extensions/resource_request_policy.h

   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 #ifndef CHROME_RENDERER_EXTENSIONS_RESOURCE_REQUEST_POLICY_H_
   6 #define CHROME_RENDERER_EXTENSIONS_RESOURCE_REQUEST_POLICY_H_
   7
   8 #include "ui/base/page_transition_types.h"
   9
  10 class GURL;
  11
  12 namespace blink {
  13 class WebFrame;
  14 }
  15
  16 namespace extensions {
  17
  18 // Encapsulates the policy for when chrome-extension:// and
  19 // chrome-extension-resource:// URLs can be requested.
  20 class ResourceRequestPolicy {
  21  public:
  22   // Returns true if the chrome-extension:// |resource_url| can be requested
  23   // from |frame_url|. In some cases this decision is made based upon how
  24   // this request was generated. Web triggered transitions are more restrictive
  25   // than those triggered through UI.
  26   static bool CanRequestResource(const GURL& resource_url,
  27                                  blink::WebFrame* frame,
  28                                  ui::PageTransition transition_type);
  29   // Returns true if the chrome-extension-resource:// |resource_url| can be
  30   // requested from |frame_url|.
  31   static bool CanRequestExtensionResourceScheme(const GURL& resource_url,
  32                                                 blink::WebFrame* frame);
  33
  34  private:
  35   ResourceRequestPolicy();
  36 };
  37
  38 }  // namespace extensions
  39
  40 #endif  // CHROME_RENDERER_EXTENSIONS_RESOURCE_REQUEST_POLICY_H_