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// Copyright (c) 2012 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.
#ifndef CHROME_BROWSER_CHROMEOS_PROXY_CONFIG_SERVICE_IMPL_H_
#define CHROME_BROWSER_CHROMEOS_PROXY_CONFIG_SERVICE_IMPL_H_
#include <string>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/prefs/pref_member.h"
#include "chrome/browser/net/pref_proxy_config_tracker_impl.h"
#include "chromeos/network/network_state_handler_observer.h"
#include "chromeos/network/onc/onc_constants.h"
class PrefRegistrySimple;
namespace user_prefs {
class PrefRegistrySyncable;
}
namespace chromeos {
class NetworkState;
// 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 ProxyConfigServiceImpl : public PrefProxyConfigTrackerImpl,
public NetworkStateHandlerObserver {
public:
// ProxyConfigServiceImpl is created in ProxyServiceFactory::
// CreatePrefProxyConfigTrackerImpl via Profile::GetProxyConfigTracker() for
// profile or IOThread constructor for local state and is owned by the
// respective classes.
//
// The new modified proxy config, together with proxy from prefs if available,
// are used to determine the effective proxy config, which is then pushed
// through PrefProxyConfigTrackerImpl to ChromeProxyConfigService to the
// network stack.
explicit ProxyConfigServiceImpl(PrefService* pref_service);
virtual ~ProxyConfigServiceImpl();
// PrefProxyConfigTrackerImpl implementation.
virtual void OnProxyConfigChanged(ProxyPrefs::ConfigState config_state,
const net::ProxyConfig& config) OVERRIDE;
// NetworkStateHandlerObserver implementation.
virtual void DefaultNetworkChanged(const NetworkState* network) OVERRIDE;
// Register UseShardProxies preference.
static void RegisterPrefs(PrefRegistrySimple* registry);
static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
protected:
friend class UIProxyConfigService;
// Returns value of UseSharedProxies preference if it's not default, else
// returns false if user is logged in and true otherwise.
static bool GetUseSharedProxies(const PrefService* pref_service);
// Returns true if proxy is to be ignored for this profile and |onc_source|,
// e.g. this happens if the network is shared and use-shared-proxies is turned
// off.
static bool IgnoreProxy(const PrefService* pref_service,
const std::string network_profile_path,
onc::ONCSource onc_source);
private:
// Called when the kUseSharedProxies preference changes.
void OnUseSharedProxiesChanged();
// 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();
// State of |active_config_|. |active_config_| is only valid if
// |active_config_state_| is not ProxyPrefs::CONFIG_UNSET.
ProxyPrefs::ConfigState active_config_state_;
// Active proxy configuration, which could be from prefs or network.
net::ProxyConfig active_config_;
// Track changes in UseSharedProxies user preference.
BooleanPrefMember use_shared_proxies_;
base::WeakPtrFactory<ProxyConfigServiceImpl> pointer_factory_;
DISALLOW_COPY_AND_ASSIGN(ProxyConfigServiceImpl);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_PROXY_CONFIG_SERVICE_IMPL_H_
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