chrome/browser/chromeos/ui_proxy_config_service.cc

   1 // Copyright 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/ui_proxy_config_service.h"
   6
   7 #include "base/logging.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/values.h"
  10 #include "chrome/browser/chromeos/net/proxy_config_handler.h"
  11 #include "chrome/browser/chromeos/proxy_config_service_impl.h"
  12 #include "chromeos/network/network_state.h"
  13 #include "chromeos/network/network_state_handler.h"
  14 #include "components/device_event_log/device_event_log.h"
  15 #include "net/proxy/proxy_config.h"
  16
  17 namespace chromeos {
  18
  19 namespace {
  20
  21 const char* ModeToString(UIProxyConfig::Mode mode) {
  22   switch (mode) {
  23     case UIProxyConfig::MODE_DIRECT:
  24       return "direct";
  25     case UIProxyConfig::MODE_AUTO_DETECT:
  26       return "auto-detect";
  27     case UIProxyConfig::MODE_PAC_SCRIPT:
  28       return "pacurl";
  29     case UIProxyConfig::MODE_SINGLE_PROXY:
  30       return "single-proxy";
  31     case UIProxyConfig::MODE_PROXY_PER_SCHEME:
  32       return "proxy-per-scheme";
  33   }
  34   NOTREACHED() << "Unrecognized mode type";
  35   return "";
  36 }
  37
  38 // Writes the proxy config of |network| to |proxy_config|.  Sets |onc_source| to
  39 // the source of this configuration. Returns false if no proxy was configured
  40 // for this network.
  41 bool GetProxyConfig(const PrefService* profile_prefs,
  42                     const PrefService* local_state_prefs,
  43                     const NetworkState& network,
  44                     net::ProxyConfig* proxy_config,
  45                     onc::ONCSource* onc_source) {
  46   scoped_ptr<ProxyConfigDictionary> proxy_dict =
  47       proxy_config::GetProxyConfigForNetwork(
  48           profile_prefs, local_state_prefs, network, onc_source);
  49   if (!proxy_dict)
  50     return false;
  51   return PrefProxyConfigTrackerImpl::PrefConfigToNetConfig(*proxy_dict,
  52                                                            proxy_config);
  53 }
  54
  55 // Returns true if proxy settings from |onc_source| are editable.
  56 bool IsNetworkProxySettingsEditable(const onc::ONCSource onc_source) {
  57   return onc_source != onc::ONC_SOURCE_DEVICE_POLICY &&
  58          onc_source != onc::ONC_SOURCE_USER_POLICY;
  59 }
  60
  61 }  // namespace
  62
  63 UIProxyConfigService::UIProxyConfigService()
  64     : profile_prefs_(nullptr), local_state_prefs_(nullptr) {
  65 }
  66
  67 UIProxyConfigService::~UIProxyConfigService() {
  68 }
  69
  70 void UIProxyConfigService::SetPrefs(PrefService* profile_prefs,
  71                                     PrefService* local_state_prefs) {
  72   profile_prefs_ = profile_prefs;
  73   local_state_prefs_ = local_state_prefs;
  74 }
  75
  76 void UIProxyConfigService::SetCurrentNetworkGuid(
  77     const std::string& current_guid) {
  78   current_ui_network_guid_ = current_guid;
  79 }
  80
  81 void UIProxyConfigService::UpdateFromPrefs() {
  82   const NetworkState* network = nullptr;
  83   if (!current_ui_network_guid_.empty()) {
  84     network =
  85         NetworkHandler::Get()->network_state_handler()->GetNetworkStateFromGuid(
  86             current_ui_network_guid_);
  87   }
  88   if (!network || !network->IsInProfile()) {
  89     NET_LOG(ERROR) << "No configured NetworkState for guid: "
  90                    << current_ui_network_guid_;
  91     current_ui_network_guid_.clear();
  92     current_ui_config_ = UIProxyConfig();
  93     return;
  94   }
  95
  96   DetermineEffectiveConfig(*network);
  97   VLOG(1) << "Current ui network: " << network->name() << ", "
  98           << ModeToString(current_ui_config_.mode) << ", "
  99           << ProxyPrefs::ConfigStateToDebugString(current_ui_config_.state)
 100           << ", modifiable:" << current_ui_config_.user_modifiable;
 101 }
 102
 103 void UIProxyConfigService::GetProxyConfig(UIProxyConfig* config) const {
 104   *config = current_ui_config_;
 105 }
 106
 107 void UIProxyConfigService::SetProxyConfig(const UIProxyConfig& config) {
 108   current_ui_config_ = config;
 109   if (current_ui_network_guid_.empty())
 110     return;
 111
 112   const NetworkState* network =
 113       NetworkHandler::Get()->network_state_handler()->GetNetworkStateFromGuid(
 114           current_ui_network_guid_);
 115   if (!network || !network->IsInProfile()) {
 116     NET_LOG(ERROR) << "No configured NetworkState for guid: "
 117                    << current_ui_network_guid_;
 118     return;
 119   }
 120
 121   // Store config for this network.
 122   scoped_ptr<base::DictionaryValue> proxy_config_value(
 123       config.ToPrefProxyConfig());
 124   ProxyConfigDictionary proxy_config_dict(proxy_config_value.get());
 125
 126   VLOG(1) << "Set proxy for " << current_ui_network_guid_ << " to "
 127           << *proxy_config_value;
 128
 129   proxy_config::SetProxyConfigForNetwork(proxy_config_dict, *network);
 130   current_ui_config_.state = ProxyPrefs::CONFIG_SYSTEM;
 131 }
 132
 133 void UIProxyConfigService::DetermineEffectiveConfig(
 134     const NetworkState& network) {
 135   DCHECK(local_state_prefs_);
 136
 137   // The pref service to read proxy settings that apply to all networks.
 138   // Settings from the profile overrule local state.
 139   PrefService* top_pref_service =
 140       profile_prefs_ ? profile_prefs_ : local_state_prefs_;
 141
 142   // Get prefs proxy config if available.
 143   net::ProxyConfig pref_config;
 144   ProxyPrefs::ConfigState pref_state = ProxyConfigServiceImpl::ReadPrefConfig(
 145       top_pref_service, &pref_config);
 146
 147   // Get network proxy config if available.
 148   net::ProxyConfig network_config;
 149   net::ProxyConfigService::ConfigAvailability network_availability =
 150       net::ProxyConfigService::CONFIG_UNSET;
 151   onc::ONCSource onc_source = onc::ONC_SOURCE_NONE;
 152   if (chromeos::GetProxyConfig(profile_prefs_,
 153                                local_state_prefs_,
 154                                network,
 155                                &network_config,
 156                                &onc_source)) {
 157     // Network is private or shared with user using shared proxies.
 158     VLOG(1) << this << ": using proxy of network: " << network.path();
 159     network_availability = net::ProxyConfigService::CONFIG_VALID;
 160   }
 161
 162   // Determine effective proxy config, either from prefs or network.
 163   ProxyPrefs::ConfigState effective_config_state;
 164   net::ProxyConfig effective_config;
 165   ProxyConfigServiceImpl::GetEffectiveProxyConfig(
 166       pref_state, pref_config,
 167       network_availability, network_config, false,
 168       &effective_config_state, &effective_config);
 169
 170   // Store effective proxy into |current_ui_config_|.
 171   current_ui_config_.FromNetProxyConfig(effective_config);
 172   current_ui_config_.state = effective_config_state;
 173   if (ProxyConfigServiceImpl::PrefPrecedes(effective_config_state)) {
 174     current_ui_config_.user_modifiable = false;
 175   } else if (!IsNetworkProxySettingsEditable(onc_source)) {
 176     current_ui_config_.state = ProxyPrefs::CONFIG_POLICY;
 177     current_ui_config_.user_modifiable = false;
 178   } else {
 179     current_ui_config_.user_modifiable = !ProxyConfigServiceImpl::IgnoreProxy(
 180         profile_prefs_, network.profile_path(), onc_source);
 181   }
 182 }
 183
 184 }  // namespace chromeos