1// Copyright (c) 2012 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#ifndef NET_PROXY_PROXY_CONFIG_SERVICE_MAC_H_
6#define NET_PROXY_PROXY_CONFIG_SERVICE_MAC_H_
7
8#include "base/basictypes.h"
9#include "base/compiler_specific.h"
10#include "base/memory/ref_counted.h"
11#include "base/memory/scoped_ptr.h"
12#include "base/observer_list.h"
13#include "net/base/network_config_watcher_mac.h"
14#include "net/proxy/proxy_config.h"
15#include "net/proxy/proxy_config_service.h"
16
17namespace base {
18class SingleThreadTaskRunner;
19}  // namespace base
20
21namespace net {
22
23class ProxyConfigServiceMac : public ProxyConfigService {
24 public:
25  // Constructs a ProxyConfigService that watches the Mac OS system settings.
26  // This instance is expected to be operated and deleted on the same thread
27  // (however it may be constructed from a different thread).
28  explicit ProxyConfigServiceMac(
29      const scoped_refptr<base::SingleThreadTaskRunner>& io_thread_task_runner);
30  virtual ~ProxyConfigServiceMac();
31
32 public:
33  // ProxyConfigService implementation:
34  virtual void AddObserver(Observer* observer) OVERRIDE;
35  virtual void RemoveObserver(Observer* observer) OVERRIDE;
36  virtual ConfigAvailability GetLatestProxyConfig(ProxyConfig* config) OVERRIDE;
37
38 private:
39  class Helper;
40
41  // Forwarder just exists to keep the NetworkConfigWatcherMac API out of
42  // ProxyConfigServiceMac's public API.
43  class Forwarder : public NetworkConfigWatcherMac::Delegate {
44   public:
45    explicit Forwarder(ProxyConfigServiceMac* proxy_config_service)
46        : proxy_config_service_(proxy_config_service) {}
47
48    // NetworkConfigWatcherMac::Delegate implementation:
49    virtual void StartReachabilityNotifications() OVERRIDE {}
50    virtual void SetDynamicStoreNotificationKeys(
51        SCDynamicStoreRef store) OVERRIDE;
52    virtual void OnNetworkConfigChange(CFArrayRef changed_keys) OVERRIDE;
53
54   private:
55    ProxyConfigServiceMac* const proxy_config_service_;
56    DISALLOW_COPY_AND_ASSIGN(Forwarder);
57  };
58
59  // Methods directly called by the NetworkConfigWatcherMac::Delegate:
60  void SetDynamicStoreNotificationKeys(SCDynamicStoreRef store);
61  void OnNetworkConfigChange(CFArrayRef changed_keys);
62
63  // Called when the proxy configuration has changed, to notify the observers.
64  void OnProxyConfigChanged(const ProxyConfig& new_config);
65
66  Forwarder forwarder_;
67  scoped_ptr<const NetworkConfigWatcherMac> config_watcher_;
68
69  ObserverList<Observer> observers_;
70
71  // Holds the last system proxy settings that we fetched.
72  bool has_fetched_config_;
73  ProxyConfig last_config_fetched_;
74
75  scoped_refptr<Helper> helper_;
76
77  // The thread that we expect to be operated on.
78  const scoped_refptr<base::SingleThreadTaskRunner> io_thread_task_runner_;
79
80  DISALLOW_COPY_AND_ASSIGN(ProxyConfigServiceMac);
81};
82
83}  // namespace net
84
85#endif  // NET_PROXY_PROXY_CONFIG_SERVICE_MAC_H_
86