chrome_resource_dispatcher_host_delegate.h revision 90dce4d38c5ff5333bea97d859d4e484e27edf0c 
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
14class DelayedResourceQueue;
15class DownloadRequestLimiter;
16class SafeBrowsingService;
17
18namespace extensions {
19class UserScriptListener;
20}
21
22namespace prerender {
23class 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.
28class 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,
89      int64 expected_content_size) OVERRIDE;
90  virtual void OnResponseStarted(
91      net::URLRequest* request,
92      content::ResourceContext* resource_context,
93      content::ResourceResponse* response,
94      IPC::Sender* sender) OVERRIDE;
95  virtual void OnRequestRedirected(
96      const GURL& redirect_url,
97      net::URLRequest* request,
98      content::ResourceContext* resource_context,
99      content::ResourceResponse* response) OVERRIDE;
100
101 private:
102  void AppendStandardResourceThrottles(
103      net::URLRequest* request,
104      content::ResourceContext* resource_context,
105      int child_id,
106      int route_id,
107      ResourceType::Type resource_type,
108      ScopedVector<content::ResourceThrottle>* throttles);
109
110  // Adds Chrome experiment and metrics state as custom headers to |request|.
111  // This is a best-effort attempt, and does not interrupt the request if the
112  // headers can not be appended.
113  void AppendChromeMetricsHeaders(
114      net::URLRequest* request,
115      content::ResourceContext* resource_context,
116      ResourceType::Type resource_type);
117
118#if defined(ENABLE_ONE_CLICK_SIGNIN)
119  // Append headers required to tell Gaia whether the sync interstitial
120  // should be shown or not.  This header is only added for valid Gaia URLs.
121  void AppendChromeSyncGaiaHeader(
122      net::URLRequest* request,
123      content::ResourceContext* resource_context);
124#endif
125
126  scoped_refptr<DownloadRequestLimiter> download_request_limiter_;
127  scoped_refptr<SafeBrowsingService> safe_browsing_;
128  scoped_refptr<extensions::UserScriptListener> user_script_listener_;
129  prerender::PrerenderTracker* prerender_tracker_;
130
131  DISALLOW_COPY_AND_ASSIGN(ChromeResourceDispatcherHostDelegate);
132};
133
134#endif  // CHROME_BROWSER_RENDERER_HOST_CHROME_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
135