src/chrome/browser/net/chrome_extensions_network_delegate.cc

   1 // Copyright 2014 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 #include "chrome/browser/net/chrome_extensions_network_delegate.h"
   6
   7 #include "net/base/net_errors.h"
   8
   9 #if defined(ENABLE_EXTENSIONS)
  10 #include "chrome/browser/browser_process.h"
  11 #include "chrome/browser/extensions/api/proxy/proxy_api.h"
  12 #include "chrome/browser/extensions/api/web_request/web_request_api.h"
  13 #include "chrome/browser/extensions/event_router_forwarder.h"
  14 #include "chrome/browser/profiles/profile_manager.h"
  15 #include "content/public/browser/browser_thread.h"
  16 #include "content/public/browser/render_frame_host.h"
  17 #include "content/public/browser/resource_request_info.h"
  18 #include "extensions/browser/extension_system.h"
  19 #include "extensions/browser/info_map.h"
  20 #include "extensions/browser/process_manager.h"
  21 #include "net/url_request/url_request.h"
  22
  23 using content::BrowserThread;
  24 using content::ResourceRequestInfo;
  25
  26 namespace {
  27
  28 enum RequestStatus { REQUEST_STARTED, REQUEST_DONE };
  29
  30 // Notifies the extensions::ProcessManager that a request has started or stopped
  31 // for a particular RenderFrame.
  32 void NotifyEPMRequestStatus(RequestStatus status,
  33                             void* profile_id,
  34                             int process_id,
  35                             int render_frame_id) {
  36   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  37   Profile* profile = reinterpret_cast<Profile*>(profile_id);
  38   if (!g_browser_process->profile_manager()->IsValidProfile(profile))
  39     return;
  40
  41   extensions::ProcessManager* process_manager =
  42       extensions::ExtensionSystem::Get(profile)->process_manager();
  43   // This may be NULL in unit tests.
  44   if (!process_manager)
  45     return;
  46
  47   // Will be NULL if the request was not issued on behalf of a renderer (e.g. a
  48   // system-level request).
  49   content::RenderFrameHost* render_frame_host =
  50       content::RenderFrameHost::FromID(process_id, render_frame_id);
  51   if (render_frame_host) {
  52     if (status == REQUEST_STARTED) {
  53       process_manager->OnNetworkRequestStarted(render_frame_host);
  54     } else if (status == REQUEST_DONE) {
  55       process_manager->OnNetworkRequestDone(render_frame_host);
  56     } else {
  57       NOTREACHED();
  58     }
  59   }
  60 }
  61
  62 void ForwardRequestStatus(
  63     RequestStatus status, net::URLRequest* request, void* profile_id) {
  64   const ResourceRequestInfo* info = ResourceRequestInfo::ForRequest(request);
  65   if (!info)
  66     return;
  67
  68   if (status == REQUEST_STARTED && request->url_chain().size() > 1) {
  69     // It's a redirect, this request has already been counted.
  70     return;
  71   }
  72
  73   int process_id, render_frame_id;
  74   if (info->GetAssociatedRenderFrame(&process_id, &render_frame_id)) {
  75     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
  76         base::Bind(&NotifyEPMRequestStatus,
  77                    status, profile_id, process_id, render_frame_id));
  78   }
  79 }
  80
  81 class ChromeExtensionsNetworkDelegateImpl
  82     : public ChromeExtensionsNetworkDelegate {
  83  public:
  84   explicit ChromeExtensionsNetworkDelegateImpl(
  85       extensions::EventRouterForwarder* event_router);
  86   virtual ~ChromeExtensionsNetworkDelegateImpl();
  87
  88  private:
  89   // ChromeExtensionsNetworkDelegate implementation.
  90   virtual void ForwardProxyErrors(net::URLRequest* request) OVERRIDE;
  91   virtual void ForwardStartRequestStatus(net::URLRequest* request) OVERRIDE;
  92   virtual void ForwardDoneRequestStatus(net::URLRequest* request) OVERRIDE;
  93   virtual int OnBeforeURLRequest(net::URLRequest* request,
  94                                  const net::CompletionCallback& callback,
  95                                  GURL* new_url) OVERRIDE;
  96   virtual int OnBeforeSendHeaders(net::URLRequest* request,
  97                                   const net::CompletionCallback& callback,
  98                                   net::HttpRequestHeaders* headers) OVERRIDE;
  99   virtual void OnSendHeaders(net::URLRequest* request,
 100                              const net::HttpRequestHeaders& headers) OVERRIDE;
 101   virtual int OnHeadersReceived(
 102       net::URLRequest* request,
 103       const net::CompletionCallback& callback,
 104       const net::HttpResponseHeaders* original_response_headers,
 105       scoped_refptr<net::HttpResponseHeaders>* override_response_headers,
 106       GURL* allowed_unsafe_redirect_url) OVERRIDE;
 107   virtual void OnBeforeRedirect(net::URLRequest* request,
 108                                 const GURL& new_location) OVERRIDE;
 109   virtual void OnResponseStarted(net::URLRequest* request) OVERRIDE;
 110   virtual void OnCompleted(net::URLRequest* request, bool started) OVERRIDE;
 111   virtual void OnURLRequestDestroyed(net::URLRequest* request) OVERRIDE;
 112   virtual void OnPACScriptError(int line_number,
 113                                 const base::string16& error) OVERRIDE;
 114   virtual net::NetworkDelegate::AuthRequiredResponse OnAuthRequired(
 115       net::URLRequest* request,
 116       const net::AuthChallengeInfo& auth_info,
 117       const AuthCallback& callback,
 118       net::AuthCredentials* credentials) OVERRIDE;
 119
 120   scoped_refptr<extensions::EventRouterForwarder> event_router_;
 121
 122   DISALLOW_COPY_AND_ASSIGN(ChromeExtensionsNetworkDelegateImpl);
 123 };
 124
 125 ChromeExtensionsNetworkDelegateImpl::ChromeExtensionsNetworkDelegateImpl(
 126     extensions::EventRouterForwarder* event_router) {
 127   DCHECK(event_router);
 128   event_router_ = event_router;
 129 }
 130
 131 ChromeExtensionsNetworkDelegateImpl::~ChromeExtensionsNetworkDelegateImpl() {}
 132
 133 void ChromeExtensionsNetworkDelegateImpl::ForwardProxyErrors(
 134     net::URLRequest* request) {
 135   if (request->status().status() == net::URLRequestStatus::FAILED) {
 136     switch (request->status().error()) {
 137       case net::ERR_PROXY_AUTH_UNSUPPORTED:
 138       case net::ERR_PROXY_CONNECTION_FAILED:
 139       case net::ERR_TUNNEL_CONNECTION_FAILED:
 140         extensions::ProxyEventRouter::GetInstance()->OnProxyError(
 141             event_router_.get(), profile_, request->status().error());
 142     }
 143   }
 144 }
 145
 146 void ChromeExtensionsNetworkDelegateImpl::ForwardStartRequestStatus(
 147     net::URLRequest* request) {
 148   ForwardRequestStatus(REQUEST_STARTED, request, profile_);
 149 }
 150
 151 void ChromeExtensionsNetworkDelegateImpl::ForwardDoneRequestStatus(
 152     net::URLRequest* request) {
 153   ForwardRequestStatus(REQUEST_DONE, request, profile_);
 154 }
 155
 156 int ChromeExtensionsNetworkDelegateImpl::OnBeforeURLRequest(
 157     net::URLRequest* request,
 158     const net::CompletionCallback& callback,
 159     GURL* new_url) {
 160   return ExtensionWebRequestEventRouter::GetInstance()->OnBeforeRequest(
 161       profile_, extension_info_map_.get(), request, callback, new_url);
 162 }
 163
 164 int ChromeExtensionsNetworkDelegateImpl::OnBeforeSendHeaders(
 165     net::URLRequest* request,
 166     const net::CompletionCallback& callback,
 167     net::HttpRequestHeaders* headers) {
 168   return ExtensionWebRequestEventRouter::GetInstance()->OnBeforeSendHeaders(
 169       profile_, extension_info_map_.get(), request, callback, headers);
 170 }
 171
 172 void ChromeExtensionsNetworkDelegateImpl::OnSendHeaders(
 173     net::URLRequest* request,
 174     const net::HttpRequestHeaders& headers) {
 175   ExtensionWebRequestEventRouter::GetInstance()->OnSendHeaders(
 176       profile_, extension_info_map_.get(), request, headers);
 177 }
 178
 179 int ChromeExtensionsNetworkDelegateImpl::OnHeadersReceived(
 180     net::URLRequest* request,
 181     const net::CompletionCallback& callback,
 182     const net::HttpResponseHeaders* original_response_headers,
 183     scoped_refptr<net::HttpResponseHeaders>* override_response_headers,
 184     GURL* allowed_unsafe_redirect_url) {
 185   return ExtensionWebRequestEventRouter::GetInstance()->OnHeadersReceived(
 186       profile_,
 187       extension_info_map_.get(),
 188       request,
 189       callback,
 190       original_response_headers,
 191       override_response_headers,
 192       allowed_unsafe_redirect_url);
 193 }
 194
 195 void ChromeExtensionsNetworkDelegateImpl::OnBeforeRedirect(
 196     net::URLRequest* request,
 197     const GURL& new_location) {
 198   ExtensionWebRequestEventRouter::GetInstance()->OnBeforeRedirect(
 199       profile_, extension_info_map_.get(), request, new_location);
 200 }
 201
 202
 203 void ChromeExtensionsNetworkDelegateImpl::OnResponseStarted(
 204     net::URLRequest* request) {
 205   ExtensionWebRequestEventRouter::GetInstance()->OnResponseStarted(
 206       profile_, extension_info_map_.get(), request);
 207   ForwardProxyErrors(request);
 208 }
 209
 210 void ChromeExtensionsNetworkDelegateImpl::OnCompleted(
 211     net::URLRequest* request,
 212     bool started) {
 213   if (request->status().status() == net::URLRequestStatus::SUCCESS) {
 214     bool is_redirect = request->response_headers() &&
 215         net::HttpResponseHeaders::IsRedirectResponseCode(
 216             request->response_headers()->response_code());
 217     if (!is_redirect) {
 218       ExtensionWebRequestEventRouter::GetInstance()->OnCompleted(
 219           profile_, extension_info_map_.get(), request);
 220     }
 221     return;
 222   }
 223
 224   if (request->status().status() == net::URLRequestStatus::FAILED ||
 225       request->status().status() == net::URLRequestStatus::CANCELED) {
 226     ExtensionWebRequestEventRouter::GetInstance()->OnErrorOccurred(
 227         profile_, extension_info_map_.get(), request, started);
 228     return;
 229   }
 230
 231   NOTREACHED();
 232 }
 233
 234 void ChromeExtensionsNetworkDelegateImpl::OnURLRequestDestroyed(
 235     net::URLRequest* request) {
 236   ExtensionWebRequestEventRouter::GetInstance()->OnURLRequestDestroyed(
 237       profile_, request);
 238 }
 239
 240 void ChromeExtensionsNetworkDelegateImpl::OnPACScriptError(
 241     int line_number,
 242     const base::string16& error) {
 243   extensions::ProxyEventRouter::GetInstance()->OnPACScriptError(
 244       event_router_.get(), profile_, line_number, error);
 245 }
 246
 247 net::NetworkDelegate::AuthRequiredResponse
 248 ChromeExtensionsNetworkDelegateImpl::OnAuthRequired(
 249     net::URLRequest* request,
 250     const net::AuthChallengeInfo& auth_info,
 251     const AuthCallback& callback,
 252     net::AuthCredentials* credentials) {
 253   return ExtensionWebRequestEventRouter::GetInstance()->OnAuthRequired(
 254       profile_, extension_info_map_.get(), request, auth_info, callback,
 255       credentials);
 256 }
 257
 258 }  // namespace
 259
 260 #endif  // defined(ENABLE_EXTENSIONS)
 261
 262 // static
 263 ChromeExtensionsNetworkDelegate* ChromeExtensionsNetworkDelegate::Create(
 264     extensions::EventRouterForwarder* event_router) {
 265 #if defined(ENABLE_EXTENSIONS)
 266   return new ChromeExtensionsNetworkDelegateImpl(event_router);
 267 #else
 268   return new ChromeExtensionsNetworkDelegate();
 269 #endif
 270 }
 271
 272 ChromeExtensionsNetworkDelegate::ChromeExtensionsNetworkDelegate()
 273     : profile_(NULL) {
 274 }
 275
 276 ChromeExtensionsNetworkDelegate::~ChromeExtensionsNetworkDelegate() {}
 277
 278 void ChromeExtensionsNetworkDelegate::set_extension_info_map(
 279     extensions::InfoMap* extension_info_map) {
 280 #if defined(ENABLE_EXTENSIONS)
 281   extension_info_map_ = extension_info_map;
 282 #endif
 283 }
 284
 285 void ChromeExtensionsNetworkDelegate::ForwardProxyErrors(
 286     net::URLRequest* request) {
 287 }
 288
 289 void ChromeExtensionsNetworkDelegate::ForwardStartRequestStatus(
 290     net::URLRequest* request) {
 291 }
 292
 293 void ChromeExtensionsNetworkDelegate::ForwardDoneRequestStatus(
 294     net::URLRequest* request) {
 295 }
 296
 297 int ChromeExtensionsNetworkDelegate::OnBeforeURLRequest(
 298     net::URLRequest* request,
 299     const net::CompletionCallback& callback,
 300     GURL* new_url) {
 301   return net::OK;
 302 }
 303
 304 int ChromeExtensionsNetworkDelegate::OnBeforeSendHeaders(
 305     net::URLRequest* request,
 306     const net::CompletionCallback& callback,
 307     net::HttpRequestHeaders* headers) {
 308   return net::OK;
 309 }
 310
 311 void ChromeExtensionsNetworkDelegate::OnSendHeaders(
 312     net::URLRequest* request,
 313     const net::HttpRequestHeaders& headers) {
 314 }
 315
 316 int ChromeExtensionsNetworkDelegate::OnHeadersReceived(
 317     net::URLRequest* request,
 318     const net::CompletionCallback& callback,
 319     const net::HttpResponseHeaders* original_response_headers,
 320     scoped_refptr<net::HttpResponseHeaders>* override_response_headers,
 321     GURL* allowed_unsafe_redirect_url) {
 322   return net::OK;
 323 }
 324
 325 void ChromeExtensionsNetworkDelegate::OnBeforeRedirect(
 326     net::URLRequest* request,
 327     const GURL& new_location) {
 328 }
 329
 330
 331 void ChromeExtensionsNetworkDelegate::OnResponseStarted(
 332     net::URLRequest* request) {
 333 }
 334
 335 void ChromeExtensionsNetworkDelegate::OnCompleted(
 336     net::URLRequest* request,
 337     bool started) {
 338 }
 339
 340 void ChromeExtensionsNetworkDelegate::OnURLRequestDestroyed(
 341     net::URLRequest* request) {
 342 }
 343
 344 void ChromeExtensionsNetworkDelegate::OnPACScriptError(
 345     int line_number,
 346     const base::string16& error) {
 347 }
 348
 349 net::NetworkDelegate::AuthRequiredResponse
 350 ChromeExtensionsNetworkDelegate::OnAuthRequired(
 351     net::URLRequest* request,
 352     const net::AuthChallengeInfo& auth_info,
 353     const AuthCallback& callback,
 354     net::AuthCredentials* credentials) {
 355   return net::NetworkDelegate::AUTH_REQUIRED_RESPONSE_NO_ACTION;
 356 }