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 <stdint.h>
   9
  10 #include <string>
  11
  12 #include "base/basictypes.h"
  13 #include "base/compiler_specific.h"
  14 #include "base/files/file_path.h"
  15 #include "base/memory/ref_counted.h"
  16 #include "base/memory/scoped_ptr.h"
  17 #include "base/values.h"
  18 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_metrics.h"
  19 #include "net/base/network_delegate_impl.h"
  20
  21 class ChromeExtensionsNetworkDelegate;
  22 class PrefService;
  23
  24 template<class T> class PrefMember;
  25
  26 typedef PrefMember<bool> BooleanPrefMember;
  27
  28 namespace base {
  29 class Value;
  30 }
  31
  32 namespace chrome_browser_net {
  33 class ConnectInterceptor;
  34 class Predictor;
  35 }
  36
  37 namespace content_settings {
  38 class CookieSettings;
  39 }
  40
  41 namespace domain_reliability {
  42 class DomainReliabilityMonitor;
  43 }
  44
  45 namespace extensions {
  46 class EventRouterForwarder;
  47 class InfoMap;
  48 }
  49
  50 namespace net {
  51 class URLRequest;
  52 }
  53
  54 namespace policy {
  55 class URLBlacklistManager;
  56 }
  57
  58 // ChromeNetworkDelegate is the central point from within the chrome code to
  59 // add hooks into the network stack.
  60 class ChromeNetworkDelegate : public net::NetworkDelegateImpl {
  61  public:
  62   // |enable_referrers| (and all of the other optional PrefMembers) should be
  63   // initialized on the UI thread (see below) beforehand. This object's owner is
  64   // responsible for cleaning them up at shutdown.
  65   ChromeNetworkDelegate(extensions::EventRouterForwarder* event_router,
  66                         BooleanPrefMember* enable_referrers);
  67   ~ChromeNetworkDelegate() override;
  68
  69   // Pass through to ChromeExtensionsNetworkDelegate::set_extension_info_map().
  70   void set_extension_info_map(extensions::InfoMap* extension_info_map);
  71
  72 #if defined(ENABLE_CONFIGURATION_POLICY)
  73   void set_url_blacklist_manager(
  74       const policy::URLBlacklistManager* url_blacklist_manager) {
  75     url_blacklist_manager_ = url_blacklist_manager;
  76   }
  77 #endif
  78
  79   // If |profile| is NULL or not set, events will be broadcast to all profiles,
  80   // otherwise they will only be sent to the specified profile.
  81   // Also pass through to ChromeExtensionsNetworkDelegate::set_profile().
  82   void set_profile(void* profile);
  83
  84   // |profile_path| is used to locate the "Downloads" folder on Chrome OS. If it
  85   // is set, the location of the Downloads folder for the profile is added to
  86   // the whitelist for accesses via file: scheme.
  87   void set_profile_path(const base::FilePath& profile_path) {
  88     profile_path_ = profile_path;
  89   }
  90
  91   // If |cookie_settings| is NULL or not set, all cookies are enabled,
  92   // otherwise the settings are enforced on all observed network requests.
  93   // Not inlined because we assign a scoped_refptr, which requires us to include
  94   // the header file. Here we just forward-declare it.
  95   void set_cookie_settings(content_settings::CookieSettings* cookie_settings);
  96
  97   // Causes requested URLs to be fed to |predictor| via ConnectInterceptor.
  98   void set_predictor(chrome_browser_net::Predictor* predictor);
  99
 100   void set_enable_do_not_track(BooleanPrefMember* enable_do_not_track) {
 101     enable_do_not_track_ = enable_do_not_track;
 102   }
 103
 104   void set_force_google_safe_search(
 105       BooleanPrefMember* force_google_safe_search) {
 106     force_google_safe_search_ = force_google_safe_search;
 107   }
 108
 109   void set_force_youtube_safety_mode(
 110       BooleanPrefMember* force_youtube_safety_mode) {
 111     force_youtube_safety_mode_ = force_youtube_safety_mode;
 112   }
 113
 114   void set_domain_reliability_monitor(
 115       domain_reliability::DomainReliabilityMonitor* monitor) {
 116     domain_reliability_monitor_ = monitor;
 117   }
 118
 119   // Binds the pref members to |pref_service| and moves them to the IO thread.
 120   // |enable_referrers| cannot be NULL, the others can.
 121   // This method should be called on the UI thread.
 122   static void InitializePrefsOnUIThread(
 123       BooleanPrefMember* enable_referrers,
 124       BooleanPrefMember* enable_do_not_track,
 125       BooleanPrefMember* force_google_safe_search,
 126       BooleanPrefMember* force_youtube_safety_mode,
 127       PrefService* pref_service);
 128
 129   // When called, all file:// URLs will now be accessible.  If this is not
 130   // called, then some platforms restrict access to file:// paths.
 131   static void AllowAccessToAllFiles();
 132
 133  private:
 134   // NetworkDelegate implementation.
 135   int OnBeforeURLRequest(net::URLRequest* request,
 136                          const net::CompletionCallback& callback,
 137                          GURL* new_url) override;
 138   int OnBeforeSendHeaders(net::URLRequest* request,
 139                           const net::CompletionCallback& callback,
 140                           net::HttpRequestHeaders* headers) override;
 141   void OnSendHeaders(net::URLRequest* request,
 142                      const net::HttpRequestHeaders& headers) override;
 143   int OnHeadersReceived(
 144       net::URLRequest* request,
 145       const net::CompletionCallback& callback,
 146       const net::HttpResponseHeaders* original_response_headers,
 147       scoped_refptr<net::HttpResponseHeaders>* override_response_headers,
 148       GURL* allowed_unsafe_redirect_url) override;
 149   void OnBeforeRedirect(net::URLRequest* request,
 150                         const GURL& new_location) override;
 151   void OnResponseStarted(net::URLRequest* request) override;
 152   void OnNetworkBytesReceived(const net::URLRequest& request,
 153                               int64_t bytes_received) override;
 154   void OnCompleted(net::URLRequest* request, bool started) override;
 155   void OnURLRequestDestroyed(net::URLRequest* request) override;
 156   void OnPACScriptError(int line_number, const base::string16& error) override;
 157   net::NetworkDelegate::AuthRequiredResponse OnAuthRequired(
 158       net::URLRequest* request,
 159       const net::AuthChallengeInfo& auth_info,
 160       const AuthCallback& callback,
 161       net::AuthCredentials* credentials) override;
 162   bool OnCanGetCookies(const net::URLRequest& request,
 163                        const net::CookieList& cookie_list) override;
 164   bool OnCanSetCookie(const net::URLRequest& request,
 165                       const std::string& cookie_line,
 166                       net::CookieOptions* options) override;
 167   bool OnCanAccessFile(const net::URLRequest& request,
 168                        const base::FilePath& path) const override;
 169   bool OnCanEnablePrivacyMode(
 170       const GURL& url,
 171       const GURL& first_party_for_cookies) const override;
 172   bool OnFirstPartyOnlyCookieExperimentEnabled() const override;
 173   bool OnCancelURLRequestWithPolicyViolatingReferrerHeader(
 174       const net::URLRequest& request,
 175       const GURL& target_url,
 176       const GURL& referrer_url) const override;
 177
 178   void AccumulateContentLength(
 179       int64 received_payload_byte_count,
 180       int64 original_payload_byte_count);
 181
 182   scoped_ptr<ChromeExtensionsNetworkDelegate> extensions_delegate_;
 183
 184   void* profile_;
 185   base::FilePath profile_path_;
 186   scoped_refptr<content_settings::CookieSettings> cookie_settings_;
 187
 188   scoped_ptr<chrome_browser_net::ConnectInterceptor> connect_interceptor_;
 189
 190   // Weak, owned by our owner.
 191   BooleanPrefMember* enable_referrers_;
 192   BooleanPrefMember* enable_do_not_track_;
 193   BooleanPrefMember* force_google_safe_search_;
 194   BooleanPrefMember* force_youtube_safety_mode_;
 195
 196   // Weak, owned by our owner.
 197 #if defined(ENABLE_CONFIGURATION_POLICY)
 198   const policy::URLBlacklistManager* url_blacklist_manager_;
 199 #endif
 200   domain_reliability::DomainReliabilityMonitor* domain_reliability_monitor_;
 201
 202   // When true, allow access to all file:// URLs.
 203   static bool g_allow_file_access_;
 204
 205   bool experimental_web_platform_features_enabled_;
 206
 207   DISALLOW_COPY_AND_ASSIGN(ChromeNetworkDelegate);
 208 };
 209
 210 #endif  // CHROME_BROWSER_NET_CHROME_NETWORK_DELEGATE_H_