chrome/browser/chromeos/net/proxy_config_handler.cc

   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/network_handler_callbacks.h"
  18 #include "chromeos/network/network_profile.h"
  19 #include "chromeos/network/network_profile_handler.h"
  20 #include "chromeos/network/network_state.h"
  21 #include "chromeos/network/network_state_handler.h"
  22 #include "components/pref_registry/pref_registry_syncable.h"
  23 #include "dbus/object_path.h"
  24 #include "third_party/cros_system_api/dbus/service_constants.h"
  25
  26 namespace chromeos {
  27
  28 namespace {
  29
  30 void 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
  39 namespace proxy_config {
  40
  41 scoped_ptr<ProxyConfigDictionary> GetProxyConfigForNetwork(
  42     const PrefService* profile_prefs,
  43     const PrefService* local_state_prefs,
  44     const NetworkState& network,
  45     ::onc::ONCSource* onc_source) {
  46   const base::DictionaryValue* network_policy =
  47       onc::GetPolicyForNetwork(
  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     VLOG(1) << "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
  94 void SetProxyConfigForNetwork(const ProxyConfigDictionary& proxy_config,
  95                               const NetworkState& 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
 128 void RegisterPrefs(PrefRegistrySimple* registry) {
 129   registry->RegisterListPref(prefs::kDeviceOpenNetworkConfiguration);
 130 }
 131
 132 void 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