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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_ASH_COMPONENTS_NETWORK_PROXY_PROXY_CONFIG_SERVICE_IMPL_H_
#define CHROMEOS_ASH_COMPONENTS_NETWORK_PROXY_PROXY_CONFIG_SERVICE_IMPL_H_
#include <string>
#include "base/component_export.h"
#include "base/memory/raw_ptr.h"
#include "base/task/single_thread_task_runner.h"
#include "chromeos/ash/components/network/network_state_handler_observer.h"
#include "components/onc/onc_constants.h"
#include "components/prefs/pref_change_registrar.h"
#include "components/proxy_config/pref_proxy_config_tracker_impl.h"
namespace ash {
class NetworkState;
class NetworkStateHandler;
// Implementation of proxy config service for chromeos that:
// - extends PrefProxyConfigTrackerImpl (and so lives and runs entirely on UI
// thread) to handle proxy from prefs (via PrefProxyConfigTrackerImpl) and
// system i.e. network (via shill notifications)
// - exists one per profile and one per local state
// - persists proxy setting per network in flimflim
// - provides network stack with latest effective proxy configuration for
// currently active network via PrefProxyConfigTrackerImpl's mechanism of
// pushing config to ChromeProxyConfigService
class COMPONENT_EXPORT(CHROMEOS_NETWORK) ProxyConfigServiceImpl
: public PrefProxyConfigTrackerImpl,
public NetworkStateHandlerObserver {
public:
// ProxyConfigServiceImpl is created in ProxyServiceFactory::
// CreatePrefProxyConfigTrackerImpl via Profile::GetProxyConfigTracker() for
// profile or via IOThread constructor for local state and is owned by the
// respective classes.
//
// The user's proxy config, proxy policies and proxy from prefs, are used to
// determine the effective proxy config, which is then pushed through
// PrefProxyConfigTrackerImpl to ChromeProxyConfigService to the
// network stack.
//
// |profile_prefs| can be NULL if this object should only track prefs from
// local state (e.g., for system request context or sigin-in screen).
ProxyConfigServiceImpl(
PrefService* profile_prefs,
PrefService* local_state_prefs,
scoped_refptr<base::SingleThreadTaskRunner> io_task_runner);
ProxyConfigServiceImpl(const ProxyConfigServiceImpl&) = delete;
ProxyConfigServiceImpl& operator=(const ProxyConfigServiceImpl&) = delete;
~ProxyConfigServiceImpl() override;
// PrefProxyConfigTrackerImpl implementation.
void OnProxyConfigChanged(
ProxyPrefs::ConfigState config_state,
const net::ProxyConfigWithAnnotation& config) override;
// NetworkStateHandlerObserver implementation.
void DefaultNetworkChanged(const NetworkState* network) override;
void OnShuttingDown() override;
// Returns true if proxy is to be ignored for this network profile and
// |onc_source|, e.g. this happens if the network is shared and
// use-shared-proxies is turned off. |profile_prefs| may be NULL.
static bool IgnoreProxy(const PrefService* profile_prefs,
const std::string network_profile_path,
::onc::ONCSource onc_source);
// Returns Pref Proxy configuration if available or a proxy config dictionary
// applied to the default network.
// Returns null if no Pref Proxy configuration and no active network.
// |profile_prefs| and |local_state_prefs| must be not null.
static std::unique_ptr<ProxyConfigDictionary> GetActiveProxyConfigDictionary(
const PrefService* profile_prefs,
const PrefService* local_state_prefs);
private:
friend class ProxyConfigServiceImplTest;
// Called when any proxy preference changes.
void OnProxyPrefChanged();
// Determines effective proxy config based on prefs from config tracker, the
// current default network and if user is using shared proxies. The effective
// config is stored in |active_config_| and activated on network stack, and
// hence, picked up by observers.
void DetermineEffectiveConfigFromDefaultNetwork();
// Track changes in profile preferences: UseSharedProxies and
// OpenNetworkConfiguration.
PrefChangeRegistrar profile_pref_registrar_;
// Track changes in local state preferences: DeviceOpenNetworkConfiguration.
PrefChangeRegistrar local_state_pref_registrar_;
// Not owned. NULL if tracking only local state prefs (e.g. in the system
// request context or sign-in screen).
raw_ptr<PrefService> profile_prefs_;
// Not owned.
raw_ptr<PrefService> local_state_prefs_;
NetworkStateHandlerScopedObservation network_state_handler_observer_{this};
base::WeakPtrFactory<ProxyConfigServiceImpl> pointer_factory_{this};
};
} // namespace ash
#endif // CHROMEOS_ASH_COMPONENTS_NETWORK_PROXY_PROXY_CONFIG_SERVICE_IMPL_H_
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