chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.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_BROWSER_RENDERER_HOST_CHROME_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
   6 #define CHROME_BROWSER_RENDERER_HOST_CHROME_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
   7
   8 #include <map>
   9 #include <set>
  10
  11 #include "base/compiler_specific.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "chrome/browser/external_protocol/external_protocol_handler.h"
  14 #include "content/public/browser/resource_dispatcher_host_delegate.h"
  15
  16 class DelayedResourceQueue;
  17 class DownloadRequestLimiter;
  18 class SafeBrowsingService;
  19
  20 namespace extensions {
  21 class UserScriptListener;
  22 }
  23
  24 namespace prerender {
  25 class PrerenderTracker;
  26 }
  27
  28 // Implements ResourceDispatcherHostDelegate. Currently used by the Prerender
  29 // system to abort requests and add to the load flags when a request begins.
  30 class ChromeResourceDispatcherHostDelegate
  31     : public content::ResourceDispatcherHostDelegate {
  32  public:
  33   // This class does not take ownership of the tracker but merely holds a
  34   // reference to it to avoid accessing g_browser_process.
  35   // |prerender_tracker| must outlive |this|.
  36   explicit ChromeResourceDispatcherHostDelegate(
  37       prerender::PrerenderTracker* prerender_tracker);
  38   ~ChromeResourceDispatcherHostDelegate() override;
  39
  40   // ResourceDispatcherHostDelegate implementation.
  41   bool ShouldBeginRequest(const std::string& method,
  42                           const GURL& url,
  43                           content::ResourceType resource_type,
  44                           content::ResourceContext* resource_context) override;
  45   void RequestBeginning(
  46       net::URLRequest* request,
  47       content::ResourceContext* resource_context,
  48       content::AppCacheService* appcache_service,
  49       content::ResourceType resource_type,
  50       ScopedVector<content::ResourceThrottle>* throttles) override;
  51   void DownloadStarting(
  52       net::URLRequest* request,
  53       content::ResourceContext* resource_context,
  54       int child_id,
  55       int route_id,
  56       int request_id,
  57       bool is_content_initiated,
  58       bool must_download,
  59       ScopedVector<content::ResourceThrottle>* throttles) override;
  60   content::ResourceDispatcherHostLoginDelegate* CreateLoginDelegate(
  61       net::AuthChallengeInfo* auth_info,
  62       net::URLRequest* request) override;
  63   bool HandleExternalProtocol(const GURL& url,
  64                               int child_id,
  65                               int route_id) override;
  66   bool ShouldForceDownloadResource(const GURL& url,
  67                                    const std::string& mime_type) override;
  68   bool ShouldInterceptResourceAsStream(net::URLRequest* request,
  69                                        const std::string& mime_type,
  70                                        GURL* origin,
  71                                        std::string* payload) override;
  72   void OnStreamCreated(net::URLRequest* request,
  73                        scoped_ptr<content::StreamInfo> stream) override;
  74   void OnResponseStarted(net::URLRequest* request,
  75                          content::ResourceContext* resource_context,
  76                          content::ResourceResponse* response,
  77                          IPC::Sender* sender) override;
  78   void OnRequestRedirected(const GURL& redirect_url,
  79                            net::URLRequest* request,
  80                            content::ResourceContext* resource_context,
  81                            content::ResourceResponse* response) override;
  82   void RequestComplete(net::URLRequest* url_request) override;
  83
  84   // Called on the UI thread. Allows switching out the
  85   // ExternalProtocolHandler::Delegate for testing code.
  86   static void SetExternalProtocolHandlerDelegateForTesting(
  87       ExternalProtocolHandler::Delegate* delegate);
  88
  89  private:
  90 #if defined(ENABLE_EXTENSIONS)
  91   struct StreamTargetInfo {
  92     std::string extension_id;
  93     std::string view_id;
  94   };
  95 #endif
  96
  97   void AppendStandardResourceThrottles(
  98       net::URLRequest* request,
  99       content::ResourceContext* resource_context,
 100       content::ResourceType resource_type,
 101       ScopedVector<content::ResourceThrottle>* throttles);
 102
 103 #if defined(ENABLE_ONE_CLICK_SIGNIN)
 104   // Append headers required to tell Gaia whether the sync interstitial
 105   // should be shown or not.  This header is only added for valid Gaia URLs.
 106   void AppendChromeSyncGaiaHeader(
 107       net::URLRequest* request,
 108       content::ResourceContext* resource_context);
 109 #endif
 110
 111   scoped_refptr<DownloadRequestLimiter> download_request_limiter_;
 112   scoped_refptr<SafeBrowsingService> safe_browsing_;
 113 #if defined(ENABLE_EXTENSIONS)
 114   scoped_refptr<extensions::UserScriptListener> user_script_listener_;
 115   std::map<net::URLRequest*, StreamTargetInfo> stream_target_info_;
 116 #endif
 117   prerender::PrerenderTracker* prerender_tracker_;
 118
 119   DISALLOW_COPY_AND_ASSIGN(ChromeResourceDispatcherHostDelegate);
 120 };
 121
 122 #endif  // CHROME_BROWSER_RENDERER_HOST_CHROME_RESOURCE_DISPATCHER_HOST_DELEGATE_H_