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 #include "chrome/browser/net/proxy_service_factory.h" 6 7 #include "base/command_line.h" 8 #include "base/strings/string_number_conversions.h" 9 #include "base/threading/thread.h" 10 #include "chrome/browser/browser_process.h" 11 #include "chrome/browser/io_thread.h" 12 #include "chrome/browser/net/pref_proxy_config_tracker_impl.h" 13 #include "chrome/common/chrome_switches.h" 14 #include "chrome/common/pref_names.h" 15 #include "content/public/browser/browser_thread.h" 16 #include "net/base/net_log.h" 17 #include "net/proxy/dhcp_proxy_script_fetcher_factory.h" 18 #include "net/proxy/proxy_config_service.h" 19 #include "net/proxy/proxy_script_fetcher_impl.h" 20 #include "net/proxy/proxy_service.h" 21 #include "net/proxy/proxy_service_v8.h" 22 #include "net/url_request/url_request_context.h" 23 24 #if defined(OS_CHROMEOS) 25 #include "chrome/browser/chromeos/proxy_config_service_impl.h" 26 #include "chromeos/network/dhcp_proxy_script_fetcher_chromeos.h" 27 #endif // defined(OS_CHROMEOS) 28 29 #if !defined(OS_IOS) 30 #include "net/proxy/proxy_resolver_v8.h" 31 #endif 32 33 using content::BrowserThread; 34 35 // static 36 net::ProxyConfigService* ProxyServiceFactory::CreateProxyConfigService( 37 PrefProxyConfigTracker* tracker) { 38 // The linux gconf-based proxy settings getter relies on being initialized 39 // from the UI thread. 40 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 41 42 scoped_ptr<net::ProxyConfigService> base_service; 43 44 #if !defined(OS_CHROMEOS) 45 // On ChromeOS, base service is NULL; chromeos::ProxyConfigServiceImpl 46 // determines the effective proxy config to take effect in the network layer, 47 // be it from prefs or system (which is network shill on chromeos). 48 49 // For other platforms, create a baseline service that provides proxy 50 // configuration in case nothing is configured through prefs (Note: prefs 51 // include command line and configuration policy). 52 53 // TODO(port): the IO and FILE message loops are only used by Linux. Can 54 // that code be moved to chrome/browser instead of being in net, so that it 55 // can use BrowserThread instead of raw MessageLoop pointers? See bug 25354. 56 base_service.reset(net::ProxyService::CreateSystemProxyConfigService( 57 BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO).get(), 58 BrowserThread::UnsafeGetMessageLoopForThread(BrowserThread::FILE))); 59 #endif // !defined(OS_CHROMEOS) 60 61 return tracker->CreateTrackingProxyConfigService(base_service.Pass()) 62 .release(); 63 } 64 65 // static 66 PrefProxyConfigTracker* 67 ProxyServiceFactory::CreatePrefProxyConfigTrackerOfProfile( 68 PrefService* profile_prefs, 69 PrefService* local_state_prefs) { 70 #if defined(OS_CHROMEOS) 71 return new chromeos::ProxyConfigServiceImpl(profile_prefs, local_state_prefs); 72 #else 73 return new PrefProxyConfigTrackerImpl(profile_prefs); 74 #endif // defined(OS_CHROMEOS) 75 } 76 77 // static 78 PrefProxyConfigTracker* 79 ProxyServiceFactory::CreatePrefProxyConfigTrackerOfLocalState( 80 PrefService* local_state_prefs) { 81 #if defined(OS_CHROMEOS) 82 return new chromeos::ProxyConfigServiceImpl(NULL, local_state_prefs); 83 #else 84 return new PrefProxyConfigTrackerImpl(local_state_prefs); 85 #endif // defined(OS_CHROMEOS) 86 } 87 88 // static 89 net::ProxyService* ProxyServiceFactory::CreateProxyService( 90 net::NetLog* net_log, 91 net::URLRequestContext* context, 92 net::NetworkDelegate* network_delegate, 93 net::ProxyConfigService* proxy_config_service, 94 const CommandLine& command_line, 95 bool quick_check_enabled) { 96 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); 97 98 #if defined(OS_IOS) 99 bool use_v8 = false; 100 #else 101 bool use_v8 = !command_line.HasSwitch(switches::kWinHttpProxyResolver); 102 if (use_v8 && command_line.HasSwitch(switches::kSingleProcess)) { 103 // See the note about V8 multithreading in net/proxy/proxy_resolver_v8.h 104 // to understand why we have this limitation. 105 LOG(ERROR) << "Cannot use V8 Proxy resolver in single process mode."; 106 use_v8 = false; // Fallback to non-v8 implementation. 107 } 108 #endif // defined(OS_IOS) 109 110 size_t num_pac_threads = 0u; // Use default number of threads. 111 112 // Check the command line for an override on the number of proxy resolver 113 // threads to use. 114 if (command_line.HasSwitch(switches::kNumPacThreads)) { 115 std::string s = command_line.GetSwitchValueASCII(switches::kNumPacThreads); 116 117 // Parse the switch (it should be a positive integer formatted as decimal). 118 int n; 119 if (base::StringToInt(s, &n) && n > 0) { 120 num_pac_threads = static_cast<size_t>(n); 121 } else { 122 LOG(ERROR) << "Invalid switch for number of PAC threads: " << s; 123 } 124 } 125 126 net::ProxyService* proxy_service = NULL; 127 if (use_v8) { 128 #if defined(OS_IOS) 129 NOTREACHED(); 130 #else 131 net::ProxyResolverV8::EnsureIsolateCreated(); 132 133 net::DhcpProxyScriptFetcher* dhcp_proxy_script_fetcher; 134 #if defined(OS_CHROMEOS) 135 dhcp_proxy_script_fetcher = 136 new chromeos::DhcpProxyScriptFetcherChromeos(context); 137 #else 138 net::DhcpProxyScriptFetcherFactory dhcp_factory; 139 dhcp_proxy_script_fetcher = dhcp_factory.Create(context); 140 #endif 141 142 proxy_service = net::CreateProxyServiceUsingV8ProxyResolver( 143 proxy_config_service, 144 new net::ProxyScriptFetcherImpl(context), 145 dhcp_proxy_script_fetcher, 146 context->host_resolver(), 147 net_log, 148 network_delegate); 149 #endif // defined(OS_IOS) 150 } else { 151 proxy_service = net::ProxyService::CreateUsingSystemProxyResolver( 152 proxy_config_service, 153 num_pac_threads, 154 net_log); 155 } 156 157 proxy_service->set_quick_check_enabled(quick_check_enabled); 158 159 return proxy_service; 160 } 161