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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 
17 namespace base {
18 class SingleThreadTaskRunner;
19 }  // namespace base
20 
21 namespace net {
22 
23 class 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:
Forwarder(ProxyConfigServiceMac * proxy_config_service)45     explicit Forwarder(ProxyConfigServiceMac* proxy_config_service)
46         : proxy_config_service_(proxy_config_service) {}
47 
48     // NetworkConfigWatcherMac::Delegate implementation:
StartReachabilityNotifications()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