proxy_config_handler.cc revision 4e180b6a0b4720a9b8e9e959a882386f690f08ff 
1// Copyright (c) 2013 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/chromeos/net/proxy_config_handler.h"
6
7#include "base/bind.h"
8#include "base/json/json_writer.h"
9#include "base/logging.h"
10#include "base/prefs/pref_registry_simple.h"
11#include "base/values.h"
12#include "chrome/browser/chromeos/net/onc_utils.h"
13#include "chrome/browser/prefs/proxy_config_dictionary.h"
14#include "chrome/common/pref_names.h"
15#include "chromeos/dbus/dbus_thread_manager.h"
16#include "chromeos/dbus/shill_service_client.h"
17#include "chromeos/network/favorite_state.h"
18#include "chromeos/network/network_handler_callbacks.h"
19#include "chromeos/network/network_profile.h"
20#include "chromeos/network/network_profile_handler.h"
21#include "chromeos/network/network_state_handler.h"
22#include "components/user_prefs/pref_registry_syncable.h"
23#include "dbus/object_path.h"
24#include "third_party/cros_system_api/dbus/service_constants.h"
25
26namespace chromeos {
27
28namespace {
29
30void NotifyNetworkStateHandler(const std::string& service_path) {
31  if (NetworkHandler::IsInitialized()) {
32    NetworkHandler::Get()->network_state_handler()->RequestUpdateForNetwork(
33        service_path);
34  }
35}
36
37}  // namespace
38
39namespace proxy_config {
40
41scoped_ptr<ProxyConfigDictionary> GetProxyConfigForFavoriteNetwork(
42    const PrefService* profile_prefs,
43    const PrefService* local_state_prefs,
44    const FavoriteState& network,
45    ::onc::ONCSource* onc_source) {
46  const base::DictionaryValue* network_policy =
47      onc::GetPolicyForFavoriteNetwork(
48          profile_prefs, local_state_prefs, network, onc_source);
49
50  if (network_policy) {
51    const base::DictionaryValue* proxy_policy = NULL;
52    network_policy->GetDictionaryWithoutPathExpansion(
53        ::onc::network_config::kProxySettings, &proxy_policy);
54    if (!proxy_policy) {
55      // This policy doesn't set a proxy for this network. Nonetheless, this
56      // disallows changes by the user.
57      return scoped_ptr<ProxyConfigDictionary>();
58    }
59
60    scoped_ptr<base::DictionaryValue> proxy_dict =
61        onc::ConvertOncProxySettingsToProxyConfig(*proxy_policy);
62    return make_scoped_ptr(new ProxyConfigDictionary(proxy_dict.get()));
63  }
64
65  if (network.profile_path().empty())
66    return scoped_ptr<ProxyConfigDictionary>();
67
68  const NetworkProfile* profile = NetworkHandler::Get()
69      ->network_profile_handler()->GetProfileForPath(network.profile_path());
70  if (!profile) {
71    LOG(WARNING) << "Unknown profile_path '" << network.profile_path() << "'.";
72    return scoped_ptr<ProxyConfigDictionary>();
73  }
74  if (!profile_prefs && profile->type() == NetworkProfile::TYPE_USER) {
75    // This case occurs, for example, if called from the proxy config tracker
76    // created for the system request context and the signin screen. Both don't
77    // use profile prefs and shouldn't depend on the user's not shared proxy
78    // settings.
79    VLOG(1)
80        << "Don't use unshared settings for system context or signin screen.";
81    return scoped_ptr<ProxyConfigDictionary>();
82  }
83
84  // No policy set for this network, read instead the user's (shared or
85  // unshared) configuration.
86  // The user's proxy setting is not stored in the Chrome preference yet. We
87  // still rely on Shill storing it.
88  const base::DictionaryValue& value = network.proxy_config();
89  if (value.empty())
90    return scoped_ptr<ProxyConfigDictionary>();
91  return make_scoped_ptr(new ProxyConfigDictionary(&value));
92}
93
94void SetProxyConfigForFavoriteNetwork(const ProxyConfigDictionary& proxy_config,
95                                      const FavoriteState& network) {
96  chromeos::ShillServiceClient* shill_service_client =
97      DBusThreadManager::Get()->GetShillServiceClient();
98
99  // The user's proxy setting is not stored in the Chrome preference yet. We
100  // still rely on Shill storing it.
101  ProxyPrefs::ProxyMode mode;
102  if (!proxy_config.GetMode(&mode) || mode == ProxyPrefs::MODE_DIRECT) {
103    // Return empty string for direct mode for portal check to work correctly.
104    // TODO(pneubeck): Consider removing this legacy code.
105    shill_service_client->ClearProperty(
106        dbus::ObjectPath(network.path()),
107        shill::kProxyConfigProperty,
108        base::Bind(&NotifyNetworkStateHandler, network.path()),
109        base::Bind(&network_handler::ShillErrorCallbackFunction,
110                   "SetProxyConfig.ClearProperty Failed",
111                   network.path(),
112                   network_handler::ErrorCallback()));
113  } else {
114    std::string proxy_config_str;
115    base::JSONWriter::Write(&proxy_config.GetDictionary(), &proxy_config_str);
116    shill_service_client->SetProperty(
117        dbus::ObjectPath(network.path()),
118        shill::kProxyConfigProperty,
119        base::StringValue(proxy_config_str),
120        base::Bind(&NotifyNetworkStateHandler, network.path()),
121        base::Bind(&network_handler::ShillErrorCallbackFunction,
122                   "SetProxyConfig.SetProperty Failed",
123                   network.path(),
124                   network_handler::ErrorCallback()));
125  }
126}
127
128void RegisterPrefs(PrefRegistrySimple* registry) {
129  registry->RegisterListPref(prefs::kDeviceOpenNetworkConfiguration);
130}
131
132void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
133  registry->RegisterBooleanPref(
134      prefs::kUseSharedProxies,
135      false,
136      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
137
138  registry->RegisterListPref(prefs::kOpenNetworkConfiguration,
139                             user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
140}
141
142}  // namespace proxy_config
143
144}  // namespace chromeos
145