| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chromeos/network/proxy/ui_proxy_config_service.h" |
| |
| #include <memory> |
| #include <utility> |
| |
| #include "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "base/logging.h" |
| #include "base/values.h" |
| #include "chromeos/network/network_state.h" |
| #include "chromeos/network/network_state_handler.h" |
| #include "chromeos/network/proxy/proxy_config_handler.h" |
| #include "chromeos/network/proxy/proxy_config_service_impl.h" |
| #include "chromeos/network/tether_constants.h" |
| #include "components/device_event_log/device_event_log.h" |
| #include "components/proxy_config/pref_proxy_config_tracker_impl.h" |
| #include "components/proxy_config/proxy_config_pref_names.h" |
| #include "net/proxy_resolution/proxy_config.h" |
| |
| namespace chromeos { |
| |
| namespace { |
| |
| // Writes the proxy config of |network| to |proxy_config|. Sets |onc_source| to |
| // the source of this configuration. Returns false if no proxy was configured |
| // for this network. |
| bool GetProxyConfig(const PrefService* profile_prefs, |
| const PrefService* local_state_prefs, |
| const NetworkState& network, |
| net::ProxyConfigWithAnnotation* proxy_config, |
| onc::ONCSource* onc_source) { |
| std::unique_ptr<ProxyConfigDictionary> proxy_dict = |
| proxy_config::GetProxyConfigForNetwork(profile_prefs, local_state_prefs, |
| network, onc_source); |
| if (!proxy_dict) |
| return false; |
| return PrefProxyConfigTrackerImpl::PrefConfigToNetConfig(*proxy_dict, |
| proxy_config); |
| } |
| |
| std::string EffectiveConfigStateToOncSourceString( |
| ProxyPrefs::ConfigState effective_config_state, |
| bool is_local_state_config, |
| onc::ONCSource onc_source) { |
| // If source precedes prefs, the config came from prefs - set by either policy |
| // or extensions. |
| if (ProxyConfigServiceImpl::PrefPrecedes(effective_config_state)) { |
| if (effective_config_state == ProxyPrefs::CONFIG_EXTENSION) |
| return ::onc::kAugmentationActiveExtension; |
| return is_local_state_config ? ::onc::kAugmentationDevicePolicy |
| : ::onc::kAugmentationUserPolicy; |
| } |
| |
| // If network is managed, proxy settings should be marked as policy managed, |
| // even if the proxy settings are not set by policy - this reports the |
| // default proxy settings as non-user modifiable. |
| if (onc_source == onc::ONC_SOURCE_USER_POLICY) |
| return ::onc::kAugmentationUserPolicy; |
| if (onc_source == onc::ONC_SOURCE_DEVICE_POLICY) |
| return ::onc::kAugmentationDevicePolicy; |
| |
| return std::string(); |
| } |
| |
| base::Value CreateEffectiveValue(const std::string& source, base::Value value) { |
| base::Value dict(base::Value::Type::DICTIONARY); |
| dict.SetKey(::onc::kAugmentationEffectiveSetting, base::Value(source)); |
| // ActiveExtension is a special source type indicating that the Effective |
| // value is the Active value and was set by an extension. It does not provide |
| // a separate value. |
| if (source != ::onc::kAugmentationActiveExtension) { |
| dict.SetKey(source, value.Clone()); |
| } |
| dict.SetKey(::onc::kAugmentationActiveSetting, std::move(value)); |
| dict.SetKey(::onc::kAugmentationUserEditable, base::Value(false)); |
| return dict; |
| } |
| |
| void SetManualProxy(base::Value* manual, |
| const std::string& source, |
| const std::string& key, |
| const net::ProxyList& proxy_list) { |
| if (proxy_list.IsEmpty()) { |
| manual->SetPath({key, ::onc::proxy::kHost}, |
| CreateEffectiveValue(source, base::Value(""))); |
| manual->SetPath({key, ::onc::proxy::kPort}, |
| CreateEffectiveValue(source, base::Value(0))); |
| return; |
| } |
| |
| const net::ProxyServer& proxy = proxy_list.Get(); |
| manual->SetPath( |
| {key, ::onc::proxy::kHost}, |
| CreateEffectiveValue(source, base::Value(proxy.host_port_pair().host()))); |
| manual->SetPath( |
| {key, ::onc::proxy::kPort}, |
| CreateEffectiveValue(source, base::Value(proxy.host_port_pair().port()))); |
| } |
| |
| base::Value OncValueWithMode(const std::string& source, |
| const std::string& mode) { |
| base::Value result(base::Value::Type::DICTIONARY); |
| result.SetKey(::onc::network_config::kType, |
| CreateEffectiveValue(source, base::Value(mode))); |
| return result; |
| } |
| |
| base::Value OncValueForManualProxyList( |
| const std::string& source, |
| const net::ProxyList& for_http, |
| const net::ProxyList& for_https, |
| const net::ProxyList& for_ftp, |
| const net::ProxyList& fallback, |
| const net::ProxyBypassRules& bypass_rules) { |
| if (for_http.IsEmpty() && for_https.IsEmpty() && for_ftp.IsEmpty() && |
| fallback.IsEmpty()) { |
| return base::Value(); |
| } |
| base::Value result = OncValueWithMode(source, ::onc::proxy::kManual); |
| |
| base::Value* manual = result.SetKey( |
| ::onc::proxy::kManual, base::Value(base::Value::Type::DICTIONARY)); |
| SetManualProxy(manual, source, ::onc::proxy::kHttp, for_http); |
| SetManualProxy(manual, source, ::onc::proxy::kHttps, for_https); |
| SetManualProxy(manual, source, ::onc::proxy::kFtp, for_ftp); |
| SetManualProxy(manual, source, ::onc::proxy::kSocks, fallback); |
| |
| base::Value exclude_domains(base::Value::Type::LIST); |
| for (const auto& rule : bypass_rules.rules()) |
| exclude_domains.GetList().emplace_back(rule->ToString()); |
| result.SetKey(::onc::proxy::kExcludeDomains, |
| CreateEffectiveValue(source, std::move(exclude_domains))); |
| |
| return result; |
| } |
| |
| base::Value OncValueForEmptyProxyRules(const net::ProxyConfig& net_config, |
| const std::string& source) { |
| if (!net_config.HasAutomaticSettings()) { |
| return OncValueWithMode(source, ::onc::proxy::kDirect); |
| } |
| |
| if (net_config.auto_detect()) { |
| return OncValueWithMode(source, ::onc::proxy::kWPAD); |
| } |
| |
| if (net_config.has_pac_url()) { |
| base::Value result = OncValueWithMode(source, ::onc::proxy::kPAC); |
| result.SetKey( |
| ::onc::proxy::kPAC, |
| CreateEffectiveValue(source, base::Value(net_config.pac_url().spec()))); |
| return result; |
| } |
| |
| return base::Value(); |
| } |
| |
| base::Value NetProxyConfigAsOncValue(const net::ProxyConfig& net_config, |
| const std::string& source) { |
| switch (net_config.proxy_rules().type) { |
| case net::ProxyConfig::ProxyRules::Type::EMPTY: |
| return OncValueForEmptyProxyRules(net_config, source); |
| case net::ProxyConfig::ProxyRules::Type::PROXY_LIST: |
| return OncValueForManualProxyList(source, |
| net_config.proxy_rules().single_proxies, |
| net_config.proxy_rules().single_proxies, |
| net_config.proxy_rules().single_proxies, |
| net_config.proxy_rules().single_proxies, |
| net_config.proxy_rules().bypass_rules); |
| case net::ProxyConfig::ProxyRules::Type::PROXY_LIST_PER_SCHEME: |
| return OncValueForManualProxyList( |
| source, net_config.proxy_rules().proxies_for_http, |
| net_config.proxy_rules().proxies_for_https, |
| net_config.proxy_rules().proxies_for_ftp, |
| net_config.proxy_rules().fallback_proxies, |
| net_config.proxy_rules().bypass_rules); |
| } |
| return base::Value(); |
| } |
| |
| } // namespace |
| |
| UIProxyConfigService::UIProxyConfigService(PrefService* profile_prefs, |
| PrefService* local_state_prefs) |
| : profile_prefs_(profile_prefs), local_state_prefs_(local_state_prefs) { |
| if (profile_prefs_) { |
| profile_registrar_.Init(profile_prefs_); |
| profile_registrar_.Add( |
| ::proxy_config::prefs::kProxy, |
| base::Bind(&UIProxyConfigService::OnPreferenceChanged, |
| base::Unretained(this))); |
| profile_registrar_.Add( |
| ::proxy_config::prefs::kUseSharedProxies, |
| base::Bind(&UIProxyConfigService::OnPreferenceChanged, |
| base::Unretained(this))); |
| } |
| |
| DCHECK(local_state_prefs_); |
| local_state_registrar_.Init(local_state_prefs_); |
| local_state_registrar_.Add( |
| ::proxy_config::prefs::kProxy, |
| base::Bind(&UIProxyConfigService::OnPreferenceChanged, |
| base::Unretained(this))); |
| } |
| |
| UIProxyConfigService::~UIProxyConfigService() = default; |
| |
| bool UIProxyConfigService::MergeEnforcedProxyConfig( |
| const std::string& network_guid, |
| base::Value* proxy_settings) { |
| current_ui_network_guid_ = network_guid; |
| const NetworkState* network = nullptr; |
| DCHECK(!network_guid.empty()); |
| DCHECK(proxy_settings->is_dict()); |
| |
| network = |
| NetworkHandler::Get()->network_state_handler()->GetNetworkStateFromGuid( |
| network_guid); |
| if (!network) { |
| NET_LOG(ERROR) << "No NetworkState for guid: " << network_guid; |
| current_ui_network_guid_.clear(); |
| return false; |
| } |
| |
| if (!network->IsNonProfileType() && !network->IsInProfile()) { |
| NET_LOG(ERROR) << "Network not in profile: " << network_guid; |
| current_ui_network_guid_.clear(); |
| return false; |
| } |
| |
| // The pref service to read proxy settings that apply to all networks. |
| // Settings from the profile overrule local state. |
| DCHECK(local_state_prefs_); |
| PrefService* top_pref_service = |
| profile_prefs_ ? profile_prefs_ : local_state_prefs_; |
| |
| // Get prefs proxy config if available. |
| net::ProxyConfigWithAnnotation pref_config; |
| ProxyPrefs::ConfigState pref_state = |
| ProxyConfigServiceImpl::ReadPrefConfig(top_pref_service, &pref_config); |
| |
| // Get network proxy config if available. |
| net::ProxyConfigWithAnnotation network_config; |
| net::ProxyConfigService::ConfigAvailability network_availability = |
| net::ProxyConfigService::CONFIG_UNSET; |
| onc::ONCSource onc_source = onc::ONC_SOURCE_NONE; |
| if (chromeos::GetProxyConfig(profile_prefs_, local_state_prefs_, *network, |
| &network_config, &onc_source)) { |
| // Network is private or shared with user using shared proxies. |
| NET_LOG(EVENT) << "UIProxyConfigService for " |
| << (profile_prefs_ ? "user" : "login") |
| << ": using proxy of network: " << network->path(); |
| network_availability = net::ProxyConfigService::CONFIG_VALID; |
| } |
| |
| // Determine effective proxy config, either from prefs or network. |
| ProxyPrefs::ConfigState effective_config_state; |
| net::ProxyConfigWithAnnotation effective_config; |
| ProxyConfigServiceImpl::GetEffectiveProxyConfig( |
| pref_state, pref_config, network_availability, network_config, false, |
| &effective_config_state, &effective_config); |
| |
| const std::string source = EffectiveConfigStateToOncSourceString( |
| effective_config_state, !profile_prefs_, onc_source); |
| if (source.empty()) |
| return false; |
| |
| base::Value enforced_settings = |
| NetProxyConfigAsOncValue(effective_config.value(), source); |
| if (enforced_settings.is_none()) |
| return false; |
| |
| proxy_settings->MergeDictionary(&enforced_settings); |
| return true; |
| } |
| |
| bool UIProxyConfigService::HasDefaultNetworkProxyConfigured() { |
| const NetworkState* network = |
| NetworkHandler::Get()->network_state_handler()->DefaultNetwork(); |
| if (!network) |
| return false; |
| onc::ONCSource onc_source = onc::ONC_SOURCE_NONE; |
| std::unique_ptr<ProxyConfigDictionary> proxy_dict = |
| proxy_config::GetProxyConfigForNetwork(nullptr, local_state_prefs_, |
| *network, &onc_source); |
| ProxyPrefs::ProxyMode mode; |
| return (proxy_dict && proxy_dict->GetMode(&mode) && |
| mode == ProxyPrefs::MODE_FIXED_SERVERS); |
| } |
| |
| void UIProxyConfigService::OnPreferenceChanged(const std::string& pref_name) { |
| // TODO(tbarzic): Send network update notifications for all networks that |
| // might be affected by the proxy pref change, not just the last network |
| // whose properties were fetched. |
| if (current_ui_network_guid_.empty()) |
| return; |
| const NetworkState* network = |
| NetworkHandler::Get()->network_state_handler()->GetNetworkStateFromGuid( |
| current_ui_network_guid_); |
| if (!network) |
| return; |
| NetworkHandler::Get() |
| ->network_state_handler() |
| ->SendUpdateNotificationForNetwork(network->path()); |
| } |
| |
| } // namespace chromeos |
