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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 CHROMEOS_NETWORK_NETWORK_STATE_H_
6 #define CHROMEOS_NETWORK_NETWORK_STATE_H_
7 
8 #include <string>
9 #include <vector>
10 
11 #include "base/values.h"
12 #include "chromeos/network/managed_state.h"
13 #include "components/onc/onc_constants.h"
14 #include "url/gurl.h"
15 
16 namespace base {
17 class DictionaryValue;
18 class Value;
19 }
20 
21 namespace chromeos {
22 
23 // Simple class to provide network state information about a network service.
24 // This class should always be passed as a const* and should never be held
25 // on to. Store network_state->path() (defined in ManagedState) instead and
26 // call NetworkStateHandler::GetNetworkState(path) to retrieve the state for
27 // the network.
28 //
29 // Note: NetworkStateHandler will store an entry for each member of
30 // Manager.ServiceCompleteList. The visible() method indicates whether the
31 // network is visible, and the IsInProfile() method indicates whether the
32 // network is saved in a profile.
33 class CHROMEOS_EXPORT NetworkState : public ManagedState {
34  public:
35   explicit NetworkState(const std::string& path);
36   virtual ~NetworkState();
37 
38   // ManagedState overrides
39   // If you change this method, update GetProperties too.
40   virtual bool PropertyChanged(const std::string& key,
41                                const base::Value& value) OVERRIDE;
42   virtual bool InitialPropertiesReceived(
43       const base::DictionaryValue& properties) OVERRIDE;
44   virtual void GetStateProperties(
45       base::DictionaryValue* dictionary) const OVERRIDE;
46 
47   void IPConfigPropertiesChanged(const base::DictionaryValue& properties);
48 
49   // Returns true, if the network requires a service activation.
50   bool RequiresActivation() const;
51 
52   // Accessors
visible()53   bool visible() const { return visible_; }
security()54   const std::string& security() const { return security_; }
device_path()55   const std::string& device_path() const { return device_path_; }
guid()56   const std::string& guid() const { return guid_; }
profile_path()57   const std::string& profile_path() const { return profile_path_; }
error()58   const std::string& error() const { return error_; }
last_error()59   const std::string& last_error() const { return last_error_; }
clear_last_error()60   void clear_last_error() { last_error_.clear(); }
61 
62   // Returns |connection_state_| if visible, kStateDisconnect otherwise.
63   std::string connection_state() const;
64 
proxy_config()65   const base::DictionaryValue& proxy_config() const { return proxy_config_; }
66 
67   // IPConfig Properties. These require an extra call to ShillIPConfigClient,
68   // so cache them to avoid excessively complex client code.
ip_address()69   const std::string& ip_address() const { return ip_address_; }
gateway()70   const std::string& gateway() const { return gateway_; }
dns_servers()71   const std::vector<std::string>& dns_servers() const { return dns_servers_; }
web_proxy_auto_discovery_url()72   const GURL& web_proxy_auto_discovery_url() const {
73     return web_proxy_auto_discovery_url_;
74   }
75 
76   // Wireless property accessors
connectable()77   bool connectable() const { return connectable_; }
signal_strength()78   int signal_strength() const { return signal_strength_; }
79 
80   // Wifi property accessors
eap_method()81   const std::string& eap_method() const { return eap_method_; }
82 
83   // Cellular property accessors
network_technology()84   const std::string& network_technology() const {
85     return network_technology_;
86   }
activation_type()87   const std::string& activation_type() const { return activation_type_; }
activation_state()88   const std::string& activation_state() const { return activation_state_; }
roaming()89   const std::string& roaming() const { return roaming_; }
payment_url()90   const std::string& payment_url() const { return payment_url_; }
cellular_out_of_credits()91   bool cellular_out_of_credits() const { return cellular_out_of_credits_; }
92 
93   // Whether this network has a CACertNSS nickname set.
HasCACertNSS()94   bool HasCACertNSS() const { return has_ca_cert_nss_; }
95 
96   // Returns true if |connection_state_| is a connected/connecting state.
97   bool IsConnectedState() const;
98   bool IsConnectingState() const;
99 
100   // Returns true if this is a network stored in a profile.
101   bool IsInProfile() const;
102 
103   // Returns true if the network properties are stored in a user profile.
104   bool IsPrivate() const;
105 
106   // Returns a comma separated string of name servers.
107   std::string GetDnsServersAsString() const;
108 
109   // Converts the prefix length to a netmask string.
110   std::string GetNetmask() const;
111 
112   // Returns a specifier for identifying this network in the absence of a GUID.
113   // This should only be used by NetworkStateHandler for keeping track of
114   // GUIDs assigned to unsaved networks.
115   std::string GetSpecifier() const;
116 
117   // Set the GUID. Called exclusively by NetworkStateHandler.
118   void SetGuid(const std::string& guid);
119 
120   // Helpers (used e.g. when a state or error is cached)
121   static bool StateIsConnected(const std::string& connection_state);
122   static bool StateIsConnecting(const std::string& connection_state);
123   static bool ErrorIsValid(const std::string& error);
124 
125  private:
126   friend class MobileActivatorTest;
127   friend class NetworkStateHandler;
128   friend class NetworkChangeNotifierChromeosUpdateTest;
129 
130   // Updates |name_| from WiFi.HexSSID if provided, and validates |name_|.
131   // Returns true if |name_| changes.
132   bool UpdateName(const base::DictionaryValue& properties);
133 
134   // Set to true if the network is a member of Manager.Services.
135   bool visible_;
136 
137   // Network Service properties. Avoid adding any additional properties here.
138   // Instead use NetworkConfigurationHandler::GetProperties() to asynchronously
139   // request properties from Shill.
140   std::string security_;
141   std::string eap_method_;  // Needed for WiFi EAP networks
142   std::string device_path_;
143   std::string guid_;
144   std::string connection_state_;
145   std::string profile_path_;
146   bool connectable_;
147 
148   // Reflects the current Shill Service.Error property. This might get cleared
149   // by Shill shortly after a failure.
150   std::string error_;
151 
152   // Last non empty Service.Error property. Cleared by NetworkConnectionHandler
153   // when a connection attempt is initiated.
154   std::string last_error_;
155 
156   // IPConfig properties.
157   // Note: These do not correspond to actual Shill.Service properties
158   // but are derived from the service's corresponding IPConfig object.
159   std::string ip_address_;
160   std::string gateway_;
161   std::vector<std::string> dns_servers_;
162   int prefix_length_;  // Used by GetNetmask()
163   GURL web_proxy_auto_discovery_url_;
164 
165   // Wireless properties, used for icons and Connect logic.
166   int signal_strength_;
167 
168   // Cellular properties, used for icons, Connect, and Activation.
169   std::string network_technology_;
170   std::string activation_type_;
171   std::string activation_state_;
172   std::string roaming_;
173   std::string payment_url_;
174   bool cellular_out_of_credits_;
175 
176   // Whether a deprecated CaCertNSS property of this network is set. Required
177   // for migration to PEM.
178   bool has_ca_cert_nss_;
179 
180   // TODO(pneubeck): Remove this once (Managed)NetworkConfigurationHandler
181   // provides proxy configuration. crbug.com/241775
182   base::DictionaryValue proxy_config_;
183 
184   DISALLOW_COPY_AND_ASSIGN(NetworkState);
185 };
186 
187 }  // namespace chromeos
188 
189 #endif  // CHROMEOS_NETWORK_NETWORK_STATE_H_
190