chrome_resource_dispatcher_host_delegate.h revision 68043e1e95eeb07d5cae7aca370b26518b0867d6 
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) OVERRIDE;
46  virtual void RequestBeginning(
47      net::URLRequest* request,
48      content::ResourceContext* resource_context,
49      appcache::AppCacheService* appcache_service,
50      ResourceType::Type resource_type,
51      int child_id,
52      int route_id,
53      ScopedVector<content::ResourceThrottle>* throttles) OVERRIDE;
54   virtual void WillTransferRequestToNewProcess(
55      int old_child_id,
56      int old_route_id,
57      int old_request_id,
58      int new_child_id,
59      int new_route_id,
60      int new_request_id) OVERRIDE;
61  virtual void DownloadStarting(
62      net::URLRequest* request,
63      content::ResourceContext* resource_context,
64      int child_id,
65      int route_id,
66      int request_id,
67      bool is_content_initiated,
68      bool must_download,
69      ScopedVector<content::ResourceThrottle>* throttles) OVERRIDE;
70  virtual bool AcceptSSLClientCertificateRequest(
71        net::URLRequest* request,
72        net::SSLCertRequestInfo* cert_request_info) OVERRIDE;
73  virtual bool AcceptAuthRequest(net::URLRequest* request,
74                                 net::AuthChallengeInfo* auth_info) OVERRIDE;
75  virtual content::ResourceDispatcherHostLoginDelegate* CreateLoginDelegate(
76      net::AuthChallengeInfo* auth_info, net::URLRequest* request) OVERRIDE;
77  virtual bool HandleExternalProtocol(const GURL& url,
78                                      int child_id,
79                                      int route_id) OVERRIDE;
80  virtual bool ShouldForceDownloadResource(
81      const GURL& url, const std::string& mime_type) OVERRIDE;
82  virtual bool ShouldInterceptResourceAsStream(
83      content::ResourceContext* resource_context,
84      const GURL& url,
85      const std::string& mime_type,
86      GURL* origin,
87      std::string* target_id) OVERRIDE;
88  virtual void OnStreamCreated(
89      content::ResourceContext* resource_context,
90      int render_process_id,
91      int render_view_id,
92      const std::string& target_id,
93      scoped_ptr<content::StreamHandle> stream,
94      int64 expected_content_size) OVERRIDE;
95  virtual void OnResponseStarted(
96      net::URLRequest* request,
97      content::ResourceContext* resource_context,
98      content::ResourceResponse* response,
99      IPC::Sender* sender) OVERRIDE;
100  virtual void OnRequestRedirected(
101      const GURL& redirect_url,
102      net::URLRequest* request,
103      content::ResourceContext* resource_context,
104      content::ResourceResponse* response) OVERRIDE;
105
106 private:
107  void AppendStandardResourceThrottles(
108      net::URLRequest* request,
109      content::ResourceContext* resource_context,
110      ResourceType::Type resource_type,
111      ScopedVector<content::ResourceThrottle>* throttles);
112
113  // Adds Chrome experiment and metrics state as custom headers to |request|.
114  // This is a best-effort attempt, and does not interrupt the request if the
115  // headers can not be appended.
116  void AppendChromeMetricsHeaders(
117      net::URLRequest* request,
118      content::ResourceContext* resource_context,
119      ResourceType::Type resource_type);
120
121#if defined(ENABLE_ONE_CLICK_SIGNIN)
122  // Append headers required to tell Gaia whether the sync interstitial
123  // should be shown or not.  This header is only added for valid Gaia URLs.
124  void AppendChromeSyncGaiaHeader(
125      net::URLRequest* request,
126      content::ResourceContext* resource_context);
127#endif
128
129  scoped_refptr<DownloadRequestLimiter> download_request_limiter_;
130  scoped_refptr<SafeBrowsingService> safe_browsing_;
131  scoped_refptr<extensions::UserScriptListener> user_script_listener_;
132  prerender::PrerenderTracker* prerender_tracker_;
133
134  DISALLOW_COPY_AND_ASSIGN(ChromeResourceDispatcherHostDelegate);
135};
136
137#endif  // CHROME_BROWSER_RENDERER_HOST_CHROME_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
138