proxy_service_factory.cc revision 3551c9c881056c480085172ff9840cab31610854
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 "content/public/browser/browser_thread.h"
15#include "net/base/net_log.h"
16#include "net/proxy/dhcp_proxy_script_fetcher_factory.h"
17#include "net/proxy/proxy_config_service.h"
18#include "net/proxy/proxy_script_fetcher_impl.h"
19#include "net/proxy/proxy_service.h"
20#include "net/proxy/proxy_service_v8.h"
21#include "net/url_request/url_request_context.h"
22
23#if defined(OS_CHROMEOS)
24#include "chrome/browser/chromeos/proxy_config_service_impl.h"
25#include "chromeos/network/dhcp_proxy_script_fetcher_chromeos.h"
26#endif  // defined(OS_CHROMEOS)
27
28#if defined(OS_WIN)
29#include "win8/util/win8_util.h"
30#endif
31
32using content::BrowserThread;
33
34// static
35net::ProxyConfigService* ProxyServiceFactory::CreateProxyConfigService(
36    PrefProxyConfigTracker* tracker) {
37  // The linux gconf-based proxy settings getter relies on being initialized
38  // from the UI thread.
39  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
40
41  scoped_ptr<net::ProxyConfigService> base_service;
42
43#if !defined(OS_CHROMEOS)
44  // On ChromeOS, base service is NULL; chromeos::ProxyConfigServiceImpl
45  // determines the effective proxy config to take effect in the network layer,
46  // be it from prefs or system (which is network shill on chromeos).
47
48  // For other platforms, create a baseline service that provides proxy
49  // configuration in case nothing is configured through prefs (Note: prefs
50  // include command line and configuration policy).
51
52  // TODO(port): the IO and FILE message loops are only used by Linux.  Can
53  // that code be moved to chrome/browser instead of being in net, so that it
54  // can use BrowserThread instead of raw MessageLoop pointers? See bug 25354.
55  base_service.reset(net::ProxyService::CreateSystemProxyConfigService(
56      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO).get(),
57      BrowserThread::UnsafeGetMessageLoopForThread(BrowserThread::FILE)));
58#endif  // !defined(OS_CHROMEOS)
59
60  return tracker->CreateTrackingProxyConfigService(base_service.Pass())
61      .release();
62}
63
64// static
65PrefProxyConfigTracker*
66ProxyServiceFactory::CreatePrefProxyConfigTrackerOfProfile(
67    PrefService* profile_prefs,
68    PrefService* local_state_prefs) {
69#if defined(OS_CHROMEOS)
70  return new chromeos::ProxyConfigServiceImpl(profile_prefs, local_state_prefs);
71#else
72  return new PrefProxyConfigTrackerImpl(profile_prefs);
73#endif  // defined(OS_CHROMEOS)
74}
75
76// static
77PrefProxyConfigTracker*
78ProxyServiceFactory::CreatePrefProxyConfigTrackerOfLocalState(
79    PrefService* local_state_prefs) {
80#if defined(OS_CHROMEOS)
81  return new chromeos::ProxyConfigServiceImpl(NULL, local_state_prefs);
82#else
83  return new PrefProxyConfigTrackerImpl(local_state_prefs);
84#endif  // defined(OS_CHROMEOS)
85}
86
87// static
88net::ProxyService* ProxyServiceFactory::CreateProxyService(
89    net::NetLog* net_log,
90    net::URLRequestContext* context,
91    net::NetworkDelegate* network_delegate,
92    net::ProxyConfigService* proxy_config_service,
93    const CommandLine& command_line) {
94  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
95
96#if defined(OS_IOS)
97  bool use_v8 = false;
98#else
99  bool use_v8 = !command_line.HasSwitch(switches::kWinHttpProxyResolver);
100  if (use_v8 && command_line.HasSwitch(switches::kSingleProcess)) {
101    // See the note about V8 multithreading in net/proxy/proxy_resolver_v8.h
102    // to understand why we have this limitation.
103    LOG(ERROR) << "Cannot use V8 Proxy resolver in single process mode.";
104    use_v8 = false;  // Fallback to non-v8 implementation.
105  }
106#endif  // defined(OS_IOS)
107
108#if defined(OS_WIN)
109  // Crashes. http://crbug.com/266838
110  if (use_v8 && win8::IsSingleWindowMetroMode())
111    use_v8 = false;
112#endif
113
114  size_t num_pac_threads = 0u;  // Use default number of threads.
115
116  // Check the command line for an override on the number of proxy resolver
117  // threads to use.
118  if (command_line.HasSwitch(switches::kNumPacThreads)) {
119    std::string s = command_line.GetSwitchValueASCII(switches::kNumPacThreads);
120
121    // Parse the switch (it should be a positive integer formatted as decimal).
122    int n;
123    if (base::StringToInt(s, &n) && n > 0) {
124      num_pac_threads = static_cast<size_t>(n);
125    } else {
126      LOG(ERROR) << "Invalid switch for number of PAC threads: " << s;
127    }
128  }
129
130  net::ProxyService* proxy_service = NULL;
131  if (use_v8) {
132#if defined(OS_IOS)
133    NOTREACHED();
134#else
135    net::DhcpProxyScriptFetcher* dhcp_proxy_script_fetcher;
136#if defined(OS_CHROMEOS)
137    dhcp_proxy_script_fetcher =
138        new chromeos::DhcpProxyScriptFetcherChromeos(context);
139#else
140    net::DhcpProxyScriptFetcherFactory dhcp_factory;
141    if (command_line.HasSwitch(switches::kDisableDhcpWpad))
142      dhcp_factory.set_enabled(false);
143    dhcp_proxy_script_fetcher = dhcp_factory.Create(context);
144#endif
145
146    proxy_service = net::CreateProxyServiceUsingV8ProxyResolver(
147        proxy_config_service,
148        new net::ProxyScriptFetcherImpl(context),
149        dhcp_proxy_script_fetcher,
150        context->host_resolver(),
151        net_log,
152        network_delegate);
153#endif  // defined(OS_IOS)
154  } else {
155    proxy_service = net::ProxyService::CreateUsingSystemProxyResolver(
156        proxy_config_service,
157        num_pac_threads,
158        net_log);
159  }
160
161  return proxy_service;
162}
163