chrome/browser/net/proxy_service_factory.cc

   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 <string>
   8
   9 #include "base/command_line.h"
  10 #include "base/strings/string_number_conversions.h"
  11 #include "base/threading/thread.h"
  12 #include "chrome/browser/browser_process.h"
  13 #include "chrome/browser/io_thread.h"
  14 #include "chrome/browser/net/pref_proxy_config_tracker_impl.h"
  15 #include "chrome/common/chrome_switches.h"
  16 #include "content/public/browser/browser_thread.h"
  17 #include "net/log/net_log.h"
  18 #include "net/proxy/dhcp_proxy_script_fetcher_factory.h"
  19 #include "net/proxy/proxy_config_service.h"
  20 #include "net/proxy/proxy_script_fetcher_impl.h"
  21 #include "net/proxy/proxy_service.h"
  22 #include "net/proxy/proxy_service_v8.h"
  23 #include "net/url_request/url_request_context.h"
  24
  25 #if defined(OS_CHROMEOS)
  26 #include "chrome/browser/chromeos/proxy_config_service_impl.h"
  27 #include "chromeos/network/dhcp_proxy_script_fetcher_chromeos.h"
  28 #endif  // defined(OS_CHROMEOS)
  29
  30 #if !defined(OS_IOS)
  31 #include "net/proxy/proxy_resolver_v8.h"
  32 #endif
  33
  34 #if !defined(OS_IOS) && !defined(OS_ANDROID)
  35 #include "chrome/browser/net/utility_process_mojo_proxy_resolver_factory.h"
  36 #include "net/proxy/proxy_service_mojo.h"
  37 #endif
  38
  39 using content::BrowserThread;
  40
  41 // static
  42 net::ProxyConfigService* ProxyServiceFactory::CreateProxyConfigService(
  43     PrefProxyConfigTracker* tracker) {
  44   // The linux gconf-based proxy settings getter relies on being initialized
  45   // from the UI thread.
  46   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  47
  48   scoped_ptr<net::ProxyConfigService> base_service;
  49
  50 #if !defined(OS_CHROMEOS)
  51   // On ChromeOS, base service is NULL; chromeos::ProxyConfigServiceImpl
  52   // determines the effective proxy config to take effect in the network layer,
  53   // be it from prefs or system (which is network shill on chromeos).
  54
  55   // For other platforms, create a baseline service that provides proxy
  56   // configuration in case nothing is configured through prefs (Note: prefs
  57   // include command line and configuration policy).
  58
  59   // TODO(port): the IO and FILE message loops are only used by Linux.  Can
  60   // that code be moved to chrome/browser instead of being in net, so that it
  61   // can use BrowserThread instead of raw MessageLoop pointers? See bug 25354.
  62   base_service.reset(net::ProxyService::CreateSystemProxyConfigService(
  63       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO),
  64       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE)));
  65 #endif  // !defined(OS_CHROMEOS)
  66
  67   return tracker->CreateTrackingProxyConfigService(base_service.Pass())
  68       .release();
  69 }
  70
  71 // static
  72 PrefProxyConfigTracker*
  73 ProxyServiceFactory::CreatePrefProxyConfigTrackerOfProfile(
  74     PrefService* profile_prefs,
  75     PrefService* local_state_prefs) {
  76 #if defined(OS_CHROMEOS)
  77   return new chromeos::ProxyConfigServiceImpl(profile_prefs, local_state_prefs);
  78 #else
  79   return new PrefProxyConfigTrackerImpl(profile_prefs);
  80 #endif  // defined(OS_CHROMEOS)
  81 }
  82
  83 // static
  84 PrefProxyConfigTracker*
  85 ProxyServiceFactory::CreatePrefProxyConfigTrackerOfLocalState(
  86     PrefService* local_state_prefs) {
  87 #if defined(OS_CHROMEOS)
  88   return new chromeos::ProxyConfigServiceImpl(NULL, local_state_prefs);
  89 #else
  90   return new PrefProxyConfigTrackerImpl(local_state_prefs);
  91 #endif  // defined(OS_CHROMEOS)
  92 }
  93
  94 // static
  95 net::ProxyService* ProxyServiceFactory::CreateProxyService(
  96     net::NetLog* net_log,
  97     net::URLRequestContext* context,
  98     net::NetworkDelegate* network_delegate,
  99     net::ProxyConfigService* proxy_config_service,
 100     const base::CommandLine& command_line,
 101     bool quick_check_enabled) {
 102   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 103 #if defined(OS_IOS)
 104   bool use_v8 = false;
 105 #else
 106   bool use_v8 = !command_line.HasSwitch(switches::kWinHttpProxyResolver);
 107   // TODO(eroman): Figure out why this doesn't work in single-process mode.
 108   // Should be possible now that a private isolate is used.
 109   // http://crbug.com/474654
 110   if (use_v8 && command_line.HasSwitch(switches::kSingleProcess)) {
 111     LOG(ERROR) << "Cannot use V8 Proxy resolver in single process mode.";
 112     use_v8 = false;  // Fallback to non-v8 implementation.
 113   }
 114 #endif  // defined(OS_IOS)
 115
 116   size_t num_pac_threads = 0u;  // Use default number of threads.
 117
 118   // Check the command line for an override on the number of proxy resolver
 119   // threads to use.
 120   if (command_line.HasSwitch(switches::kNumPacThreads)) {
 121     std::string s = command_line.GetSwitchValueASCII(switches::kNumPacThreads);
 122
 123     // Parse the switch (it should be a positive integer formatted as decimal).
 124     int n;
 125     if (base::StringToInt(s, &n) && n > 0) {
 126       num_pac_threads = static_cast<size_t>(n);
 127     } else {
 128       LOG(ERROR) << "Invalid switch for number of PAC threads: " << s;
 129     }
 130   }
 131
 132   net::ProxyService* proxy_service = NULL;
 133   if (use_v8) {
 134 #if defined(OS_IOS)
 135     NOTREACHED();
 136 #else
 137     net::DhcpProxyScriptFetcher* dhcp_proxy_script_fetcher;
 138 #if defined(OS_CHROMEOS)
 139     dhcp_proxy_script_fetcher =
 140         new chromeos::DhcpProxyScriptFetcherChromeos(context);
 141 #else
 142     net::DhcpProxyScriptFetcherFactory dhcp_factory;
 143     dhcp_proxy_script_fetcher = dhcp_factory.Create(context);
 144 #endif
 145
 146 #if !defined(OS_ANDROID)
 147     if (command_line.HasSwitch(switches::kV8PacMojoOutOfProcess)) {
 148       proxy_service = net::CreateProxyServiceUsingMojoFactory(
 149           UtilityProcessMojoProxyResolverFactory::GetInstance(),
 150           proxy_config_service, new net::ProxyScriptFetcherImpl(context),
 151           dhcp_proxy_script_fetcher, context->host_resolver(), net_log,
 152           network_delegate);
 153     } else if (command_line.HasSwitch(switches::kV8PacMojoInProcess)) {
 154       proxy_service = net::CreateProxyServiceUsingMojoInProcess(
 155           proxy_config_service, new net::ProxyScriptFetcherImpl(context),
 156           dhcp_proxy_script_fetcher, context->host_resolver(), net_log,
 157           network_delegate);
 158     }
 159 #endif  // !defined(OS_ANDROID)
 160
 161     if (!proxy_service) {
 162       proxy_service = net::CreateProxyServiceUsingV8ProxyResolver(
 163           proxy_config_service, new net::ProxyScriptFetcherImpl(context),
 164           dhcp_proxy_script_fetcher, context->host_resolver(), net_log,
 165           network_delegate);
 166     }
 167 #endif  // defined(OS_IOS)
 168   } else {
 169     proxy_service = net::ProxyService::CreateUsingSystemProxyResolver(
 170         proxy_config_service,
 171         num_pac_threads,
 172         net_log);
 173   }
 174
 175   proxy_service->set_quick_check_enabled(quick_check_enabled);
 176
 177   return proxy_service;
 178 }