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 <set>
   9
  10 #include "base/compiler_specific.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "content/public/browser/resource_dispatcher_host_delegate.h"
  13
  14 class DelayedResourceQueue;
  15 class DownloadRequestLimiter;
  16 class SafeBrowsingService;
  17
  18 namespace extensions {
  19 class UserScriptListener;
  20 }
  21
  22 namespace prerender {
  23 class PrerenderTracker;
  24 }
  25
  26 // Implements ResourceDispatcherHostDelegate. Currently used by the Prerender
  27 // system to abort requests and add to the load flags when a request begins.
  28 class ChromeResourceDispatcherHostDelegate
  29     : public content::ResourceDispatcherHostDelegate {
  30  public:
  31   // This class does not take ownership of the tracker but merely holds a
  32   // reference to it to avoid accessing g_browser_process.
  33   // |prerender_tracker| must outlive |this|.
  34   explicit ChromeResourceDispatcherHostDelegate(
  35       prerender::PrerenderTracker* prerender_tracker);
  36   virtual ~ChromeResourceDispatcherHostDelegate();
  37
  38   // ResourceDispatcherHostDelegate implementation.
  39   virtual bool ShouldBeginRequest(
  40       int child_id,
  41       int route_id,
  42       const std::string& method,
  43       const GURL& url,
  44       ResourceType::Type resource_type,
  45       content::ResourceContext* resource_context,
  46       const content::Referrer& referrer) OVERRIDE;
  47   virtual void RequestBeginning(
  48       net::URLRequest* request,
  49       content::ResourceContext* resource_context,
  50       appcache::AppCacheService* appcache_service,
  51       ResourceType::Type resource_type,
  52       int child_id,
  53       int route_id,
  54       bool is_continuation_of_transferred_request,
  55       ScopedVector<content::ResourceThrottle>* throttles) OVERRIDE;
  56   virtual void DownloadStarting(
  57       net::URLRequest* request,
  58       content::ResourceContext* resource_context,
  59       int child_id,
  60       int route_id,
  61       int request_id,
  62       bool is_content_initiated,
  63       bool must_download,
  64       ScopedVector<content::ResourceThrottle>* throttles) OVERRIDE;
  65   virtual bool AcceptSSLClientCertificateRequest(
  66         net::URLRequest* request,
  67         net::SSLCertRequestInfo* cert_request_info) OVERRIDE;
  68   virtual bool AcceptAuthRequest(net::URLRequest* request,
  69                                  net::AuthChallengeInfo* auth_info) OVERRIDE;
  70   virtual content::ResourceDispatcherHostLoginDelegate* CreateLoginDelegate(
  71       net::AuthChallengeInfo* auth_info, net::URLRequest* request) OVERRIDE;
  72   virtual bool HandleExternalProtocol(const GURL& url,
  73                                       int child_id,
  74                                       int route_id) OVERRIDE;
  75   virtual bool ShouldForceDownloadResource(
  76       const GURL& url, const std::string& mime_type) OVERRIDE;
  77   virtual bool ShouldInterceptResourceAsStream(
  78       content::ResourceContext* resource_context,
  79       const GURL& url,
  80       const std::string& mime_type,
  81       GURL* security_origin,
  82       std::string* target_id) OVERRIDE;
  83   virtual void OnStreamCreated(
  84       content::ResourceContext* resource_context,
  85       int render_process_id,
  86       int render_view_id,
  87       const std::string& target_id,
  88       scoped_ptr<content::StreamHandle> stream) OVERRIDE;
  89   virtual void OnResponseStarted(
  90       net::URLRequest* request,
  91       content::ResourceContext* resource_context,
  92       content::ResourceResponse* response,
  93       IPC::Sender* sender) OVERRIDE;
  94   virtual void OnRequestRedirected(
  95       const GURL& redirect_url,
  96       net::URLRequest* request,
  97       content::ResourceContext* resource_context,
  98       content::ResourceResponse* response) OVERRIDE;
  99
 100  private:
 101   void AppendStandardResourceThrottles(
 102       net::URLRequest* request,
 103       content::ResourceContext* resource_context,
 104       int child_id,
 105       int route_id,
 106       ResourceType::Type resource_type,
 107       ScopedVector<content::ResourceThrottle>* throttles);
 108
 109   // Adds Chrome experiment and metrics state as custom headers to |request|.
 110   // This is a best-effort attempt, and does not interrupt the request if the
 111   // headers can not be appended.
 112   void AppendChromeMetricsHeaders(
 113       net::URLRequest* request,
 114       content::ResourceContext* resource_context,
 115       ResourceType::Type resource_type);
 116
 117 #if defined(ENABLE_ONE_CLICK_SIGNIN)
 118   // Append headers required to tell Gaia whether the sync interstitial
 119   // should be shown or not.  This header is only added for valid Gaia URLs.
 120   void AppendChromeSyncGaiaHeader(
 121       net::URLRequest* request,
 122       content::ResourceContext* resource_context);
 123 #endif
 124
 125   scoped_refptr<DownloadRequestLimiter> download_request_limiter_;
 126   scoped_refptr<SafeBrowsingService> safe_browsing_;
 127   scoped_refptr<extensions::UserScriptListener> user_script_listener_;
 128   prerender::PrerenderTracker* prerender_tracker_;
 129
 130   DISALLOW_COPY_AND_ASSIGN(ChromeResourceDispatcherHostDelegate);
 131 };
 132
 133 #endif  // CHROME_BROWSER_RENDERER_HOST_CHROME_RESOURCE_DISPATCHER_HOST_DELEGATE_H_