- add sources.
[platform/framework/web/crosswalk.git] / src / chrome / browser / net / chrome_network_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_NET_CHROME_NETWORK_DELEGATE_H_
6 #define CHROME_BROWSER_NET_CHROME_NETWORK_DELEGATE_H_
7
8 #include <string>
9
10 #include "base/basictypes.h"
11 #include "base/compiler_specific.h"
12 #include "base/files/file_path.h"
13 #include "base/memory/ref_counted.h"
14 #include "base/memory/scoped_ptr.h"
15 #include "base/values.h"
16 #include "net/base/network_delegate.h"
17
18 class ClientHints;
19 class CookieSettings;
20 class ExtensionInfoMap;
21 class PrefService;
22 template<class T> class PrefMember;
23
24 typedef PrefMember<bool> BooleanPrefMember;
25
26 namespace base {
27 class Value;
28 }
29
30 namespace chrome_browser_net {
31 class ConnectInterceptor;
32 class LoadTimeStats;
33 class Predictor;
34 }
35
36 namespace extensions {
37 class EventRouterForwarder;
38 }
39
40 namespace net {
41 class URLRequest;
42 }
43
44 namespace policy {
45 class URLBlacklistManager;
46 }
47
48 // ChromeNetworkDelegate is the central point from within the chrome code to
49 // add hooks into the network stack.
50 class ChromeNetworkDelegate : public net::NetworkDelegate {
51  public:
52   // |enable_referrers| (and all of the other optional PrefMembers) should be
53   // initialized on the UI thread (see below) beforehand. This object's owner is
54   // responsible for cleaning them up at shutdown.
55   ChromeNetworkDelegate(extensions::EventRouterForwarder* event_router,
56                         BooleanPrefMember* enable_referrers);
57   virtual ~ChromeNetworkDelegate();
58
59   // Not inlined because we assign a scoped_refptr, which requires us to include
60   // the header file.
61   void set_extension_info_map(ExtensionInfoMap* extension_info_map);
62
63   void set_url_blacklist_manager(
64       const policy::URLBlacklistManager* url_blacklist_manager) {
65     url_blacklist_manager_ = url_blacklist_manager;
66   }
67
68   // If |profile| is NULL or not set, events will be broadcast to all profiles,
69   // otherwise they will only be sent to the specified profile.
70   void set_profile(void* profile) {
71     profile_ = profile;
72   }
73
74   // |profile_path| is used to locate the "Downloads" folder on Chrome OS. If it
75   // is set, the location of the Downloads folder for the profile is added to
76   // the whitelist for accesses via file: scheme.
77   void set_profile_path(const base::FilePath& profile_path) {
78     profile_path_ = profile_path;
79   }
80
81   // If |cookie_settings| is NULL or not set, all cookies are enabled,
82   // otherwise the settings are enforced on all observed network requests.
83   // Not inlined because we assign a scoped_refptr, which requires us to include
84   // the header file. Here we just forward-declare it.
85   void set_cookie_settings(CookieSettings* cookie_settings);
86
87   // Causes requested URLs to be fed to |predictor| via ConnectInterceptor.
88   void set_predictor(chrome_browser_net::Predictor* predictor);
89
90   void set_load_time_stats(chrome_browser_net::LoadTimeStats* load_time_stats) {
91     load_time_stats_ = load_time_stats;
92   }
93
94   void set_enable_do_not_track(BooleanPrefMember* enable_do_not_track) {
95     enable_do_not_track_ = enable_do_not_track;
96   }
97
98   void set_force_google_safe_search(
99       BooleanPrefMember* force_google_safe_search) {
100     force_google_safe_search_ = force_google_safe_search;
101   }
102
103   // Adds the Client Hints header to HTTP requests.
104   void SetEnableClientHints();
105
106   // Causes |OnCanThrottleRequest| to always return false, for all
107   // instances of this object.
108   static void NeverThrottleRequests();
109
110   // Binds the pref members to |pref_service| and moves them to the IO thread.
111   // |enable_referrers| cannot be NULL, the others can.
112   // This method should be called on the UI thread.
113   static void InitializePrefsOnUIThread(
114       BooleanPrefMember* enable_referrers,
115       BooleanPrefMember* enable_do_not_track,
116       BooleanPrefMember* force_google_safe_search,
117       PrefService* pref_service);
118
119   // When called, all file:// URLs will now be accessible.  If this is not
120   // called, then some platforms restrict access to file:// paths.
121   static void AllowAccessToAllFiles();
122
123   // Creates a Value summary of the persistent state of the network session.
124   // The caller is responsible for deleting the returned value.
125   // Must be called on the UI thread.
126   static Value* HistoricNetworkStatsInfoToValue();
127
128   // Creates a Value summary of the state of the network session. The caller is
129   // responsible for deleting the returned value.
130   Value* SessionNetworkStatsInfoToValue() const;
131
132  private:
133   friend class ChromeNetworkDelegateTest;
134
135   // NetworkDelegate implementation.
136   virtual int OnBeforeURLRequest(net::URLRequest* request,
137                                  const net::CompletionCallback& callback,
138                                  GURL* new_url) OVERRIDE;
139   virtual int OnBeforeSendHeaders(net::URLRequest* request,
140                                   const net::CompletionCallback& callback,
141                                   net::HttpRequestHeaders* headers) OVERRIDE;
142   virtual void OnSendHeaders(net::URLRequest* request,
143                              const net::HttpRequestHeaders& headers) OVERRIDE;
144   virtual int OnHeadersReceived(
145       net::URLRequest* request,
146       const net::CompletionCallback& callback,
147       const net::HttpResponseHeaders* original_response_headers,
148       scoped_refptr<net::HttpResponseHeaders>* override_response_headers)
149       OVERRIDE;
150   virtual void OnBeforeRedirect(net::URLRequest* request,
151                                 const GURL& new_location) OVERRIDE;
152   virtual void OnResponseStarted(net::URLRequest* request) OVERRIDE;
153   virtual void OnRawBytesRead(const net::URLRequest& request,
154                               int bytes_read) OVERRIDE;
155   virtual void OnCompleted(net::URLRequest* request, bool started) OVERRIDE;
156   virtual void OnURLRequestDestroyed(net::URLRequest* request) OVERRIDE;
157   virtual void OnPACScriptError(int line_number,
158                                 const string16& error) OVERRIDE;
159   virtual net::NetworkDelegate::AuthRequiredResponse OnAuthRequired(
160       net::URLRequest* request,
161       const net::AuthChallengeInfo& auth_info,
162       const AuthCallback& callback,
163       net::AuthCredentials* credentials) OVERRIDE;
164   virtual bool OnCanGetCookies(const net::URLRequest& request,
165                                const net::CookieList& cookie_list) OVERRIDE;
166   virtual bool OnCanSetCookie(const net::URLRequest& request,
167                               const std::string& cookie_line,
168                               net::CookieOptions* options) OVERRIDE;
169   virtual bool OnCanAccessFile(const net::URLRequest& request,
170                                const base::FilePath& path) const OVERRIDE;
171   virtual bool OnCanThrottleRequest(
172       const net::URLRequest& request) const OVERRIDE;
173   virtual bool OnCanEnablePrivacyMode(
174       const GURL& url,
175       const GURL& first_party_for_cookies) const OVERRIDE;
176   virtual int OnBeforeSocketStreamConnect(
177       net::SocketStream* stream,
178       const net::CompletionCallback& callback) OVERRIDE;
179   virtual void OnRequestWaitStateChange(const net::URLRequest& request,
180                                         RequestWaitState state) OVERRIDE;
181
182   void AccumulateContentLength(
183       int64 received_payload_byte_count, int64 original_payload_byte_count,
184       bool data_reduction_proxy_was_used);
185
186   scoped_refptr<extensions::EventRouterForwarder> event_router_;
187   void* profile_;
188   base::FilePath profile_path_;
189   scoped_refptr<CookieSettings> cookie_settings_;
190
191   scoped_refptr<ExtensionInfoMap> extension_info_map_;
192
193   scoped_ptr<chrome_browser_net::ConnectInterceptor> connect_interceptor_;
194
195   // Weak, owned by our owner.
196   BooleanPrefMember* enable_referrers_;
197   BooleanPrefMember* enable_do_not_track_;
198   BooleanPrefMember* force_google_safe_search_;
199
200   // Weak, owned by our owner.
201   const policy::URLBlacklistManager* url_blacklist_manager_;
202
203   // When true, allow access to all file:// URLs.
204   static bool g_allow_file_access_;
205
206   // True if OnCanThrottleRequest should always return false.
207   //
208   // Note: This needs to be static as the instance of
209   // ChromeNetworkDelegate used may change over time, and we need to
210   // set this variable once at start-up time.  It is effectively
211   // static anyway since it is based on a command-line flag.
212   static bool g_never_throttle_requests_;
213
214   // Pointer to IOThread global, should outlive ChromeNetworkDelegate.
215   chrome_browser_net::LoadTimeStats* load_time_stats_;
216
217   // Total size of all content (excluding headers) that has been received
218   // over the network.
219   int64 received_content_length_;
220
221   // Total original size of all content before it was transferred.
222   int64 original_content_length_;
223
224   scoped_ptr<ClientHints> client_hints_;
225
226   DISALLOW_COPY_AND_ASSIGN(ChromeNetworkDelegate);
227 };
228
229 #endif  // CHROME_BROWSER_NET_CHROME_NETWORK_DELEGATE_H_