1// Copyright (c) 2011 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_network_delegate.h" 6 7#include "base/logging.h" 8#include "chrome/browser/custom_handlers/protocol_handler_registry.h" 9#include "chrome/browser/extensions/extension_event_router_forwarder.h" 10#include "chrome/browser/extensions/extension_proxy_api.h" 11#include "chrome/browser/extensions/extension_webrequest_api.h" 12#include "chrome/browser/prefs/pref_member.h" 13#include "chrome/common/pref_names.h" 14#include "content/browser/browser_thread.h" 15#include "net/base/net_errors.h" 16#include "net/http/http_request_headers.h" 17#include "net/url_request/url_request.h" 18 19namespace { 20 21// If the |request| failed due to problems with a proxy, forward the error to 22// the proxy extension API. 23void ForwardProxyErrors(net::URLRequest* request, 24 ExtensionEventRouterForwarder* event_router, 25 ProfileId profile_id) { 26 if (request->status().status() == net::URLRequestStatus::FAILED) { 27 switch (request->status().os_error()) { 28 case net::ERR_PROXY_AUTH_UNSUPPORTED: 29 case net::ERR_PROXY_CONNECTION_FAILED: 30 case net::ERR_TUNNEL_CONNECTION_FAILED: 31 ExtensionProxyEventRouter::GetInstance()->OnProxyError( 32 event_router, profile_id, request->status().os_error()); 33 } 34 } 35} 36 37} // namespace 38 39ChromeNetworkDelegate::ChromeNetworkDelegate( 40 ExtensionEventRouterForwarder* event_router, 41 ProfileId profile_id, 42 BooleanPrefMember* enable_referrers, 43 ProtocolHandlerRegistry* protocol_handler_registry) 44 : event_router_(event_router), 45 profile_id_(profile_id), 46 enable_referrers_(enable_referrers), 47 protocol_handler_registry_(protocol_handler_registry) { 48 DCHECK(event_router); 49 DCHECK(enable_referrers); 50} 51 52ChromeNetworkDelegate::~ChromeNetworkDelegate() {} 53 54// static 55void ChromeNetworkDelegate::InitializeReferrersEnabled( 56 BooleanPrefMember* enable_referrers, 57 PrefService* pref_service) { 58 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 59 enable_referrers->Init(prefs::kEnableReferrers, pref_service, NULL); 60 enable_referrers->MoveToThread(BrowserThread::IO); 61} 62 63int ChromeNetworkDelegate::OnBeforeURLRequest( 64 net::URLRequest* request, 65 net::CompletionCallback* callback, 66 GURL* new_url) { 67 if (!enable_referrers_->GetValue()) 68 request->set_referrer(std::string()); 69 return ExtensionWebRequestEventRouter::GetInstance()->OnBeforeRequest( 70 profile_id_, event_router_.get(), request, callback, new_url); 71} 72 73int ChromeNetworkDelegate::OnBeforeSendHeaders( 74 uint64 request_id, 75 net::CompletionCallback* callback, 76 net::HttpRequestHeaders* headers) { 77 return ExtensionWebRequestEventRouter::GetInstance()->OnBeforeSendHeaders( 78 profile_id_, event_router_.get(), request_id, callback, headers); 79} 80 81void ChromeNetworkDelegate::OnResponseStarted(net::URLRequest* request) { 82 ForwardProxyErrors(request, event_router_.get(), profile_id_); 83} 84 85void ChromeNetworkDelegate::OnReadCompleted(net::URLRequest* request, 86 int bytes_read) { 87 ForwardProxyErrors(request, event_router_.get(), profile_id_); 88} 89 90void ChromeNetworkDelegate::OnURLRequestDestroyed(net::URLRequest* request) { 91 ExtensionWebRequestEventRouter::GetInstance()->OnURLRequestDestroyed( 92 profile_id_, request); 93} 94 95net::URLRequestJob* ChromeNetworkDelegate::OnMaybeCreateURLRequestJob( 96 net::URLRequest* request) { 97 if (!protocol_handler_registry_) 98 return NULL; 99 return protocol_handler_registry_->MaybeCreateJob(request); 100} 101