network_state.cc revision 23730a6e56a168d1879203e4b3819bb36e3d8f1f 
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#include "chromeos/network/network_state.h"
6
7#include "base/strings/stringprintf.h"
8#include "base/values.h"
9#include "chromeos/network/network_event_log.h"
10#include "chromeos/network/network_profile_handler.h"
11#include "chromeos/network/network_util.h"
12#include "chromeos/network/shill_property_util.h"
13#include "third_party/cros_system_api/dbus/service_constants.h"
14
15namespace {
16
17const char kErrorUnknown[] = "Unknown";
18
19bool ConvertListValueToStringVector(const base::ListValue& string_list,
20                                    std::vector<std::string>* result) {
21  for (size_t i = 0; i < string_list.GetSize(); ++i) {
22    std::string str;
23    if (!string_list.GetString(i, &str))
24      return false;
25    result->push_back(str);
26  }
27  return true;
28}
29
30bool IsCaCertNssSet(const base::DictionaryValue& properties) {
31  std::string ca_cert_nss;
32  if (properties.GetStringWithoutPathExpansion(shill::kEapCaCertNssProperty,
33                                               &ca_cert_nss) &&
34      !ca_cert_nss.empty()) {
35    return true;
36  }
37
38  const base::DictionaryValue* provider = NULL;
39  properties.GetDictionaryWithoutPathExpansion(shill::kProviderProperty,
40                                               &provider);
41  if (!provider)
42    return false;
43  if (provider->GetStringWithoutPathExpansion(
44          shill::kL2tpIpsecCaCertNssProperty, &ca_cert_nss) &&
45      !ca_cert_nss.empty()) {
46    return true;
47  }
48  if (provider->GetStringWithoutPathExpansion(
49          shill::kOpenVPNCaCertNSSProperty, &ca_cert_nss) &&
50      !ca_cert_nss.empty()) {
51    return true;
52  }
53
54  return false;
55}
56
57}  // namespace
58
59namespace chromeos {
60
61NetworkState::NetworkState(const std::string& path)
62    : ManagedState(MANAGED_TYPE_NETWORK, path),
63      connectable_(false),
64      prefix_length_(0),
65      signal_strength_(0),
66      activate_over_non_cellular_networks_(false),
67      cellular_out_of_credits_(false),
68      has_ca_cert_nss_(false) {
69}
70
71NetworkState::~NetworkState() {
72}
73
74bool NetworkState::PropertyChanged(const std::string& key,
75                                   const base::Value& value) {
76  // Keep care that these properties are the same as in |GetProperties|.
77  if (ManagedStatePropertyChanged(key, value))
78    return true;
79  if (key == shill::kSignalStrengthProperty) {
80    return GetIntegerValue(key, value, &signal_strength_);
81  } else if (key == shill::kStateProperty) {
82    return GetStringValue(key, value, &connection_state_);
83  } else if (key == shill::kConnectableProperty) {
84    return GetBooleanValue(key, value, &connectable_);
85  } else if (key == shill::kErrorProperty) {
86    if (!GetStringValue(key, value, &error_))
87      return false;
88    // Shill uses "Unknown" to indicate an unset error state.
89    if (error_ == kErrorUnknown)
90      error_.clear();
91    if (!error_.empty())
92      last_error_ = error_;
93    return true;
94  } else if (key == IPConfigProperty(shill::kAddressProperty)) {
95    return GetStringValue(key, value, &ip_address_);
96  } else if (key == IPConfigProperty(shill::kGatewayProperty)) {
97    return GetStringValue(key, value, &gateway_);
98  } else if (key == IPConfigProperty(shill::kNameServersProperty)) {
99    const base::ListValue* dns_servers;
100    if (!value.GetAsList(&dns_servers))
101      return false;
102    dns_servers_.clear();
103    ConvertListValueToStringVector(*dns_servers, &dns_servers_);
104    return true;
105  } else if (key == IPConfigProperty(shill::kPrefixlenProperty)) {
106    return GetIntegerValue(key, value, &prefix_length_);
107  } else if (key == IPConfigProperty(
108      shill::kWebProxyAutoDiscoveryUrlProperty)) {
109    std::string url_string;
110    if (!GetStringValue(key, value, &url_string))
111      return false;
112    if (url_string.empty()) {
113      web_proxy_auto_discovery_url_ = GURL();
114    } else {
115      GURL gurl(url_string);
116      if (!gurl.is_valid()) {
117        web_proxy_auto_discovery_url_ = gurl;
118      } else {
119        NET_LOG_ERROR("Invalid WebProxyAutoDiscoveryUrl: " + url_string,
120                      path());
121        web_proxy_auto_discovery_url_ = GURL();
122      }
123    }
124    return true;
125  } else if (key == shill::kActivationStateProperty) {
126    return GetStringValue(key, value, &activation_state_);
127  } else if (key == shill::kRoamingStateProperty) {
128    return GetStringValue(key, value, &roaming_);
129  } else if (key == shill::kSecurityProperty) {
130    return GetStringValue(key, value, &security_);
131  } else if (key == shill::kEapMethodProperty) {
132    return GetStringValue(key, value, &eap_method_);
133  } else if (key == shill::kUIDataProperty) {
134    scoped_ptr<NetworkUIData> new_ui_data =
135        shill_property_util::GetUIDataFromValue(value);
136    if (!new_ui_data) {
137      NET_LOG_ERROR("Failed to parse " + key, path());
138      return false;
139    }
140    ui_data_ = *new_ui_data;
141    return true;
142  } else if (key == shill::kNetworkTechnologyProperty) {
143    return GetStringValue(key, value, &network_technology_);
144  } else if (key == shill::kDeviceProperty) {
145    return GetStringValue(key, value, &device_path_);
146  } else if (key == shill::kGuidProperty) {
147    return GetStringValue(key, value, &guid_);
148  } else if (key == shill::kProfileProperty) {
149    return GetStringValue(key, value, &profile_path_);
150  } else if (key == shill::kActivateOverNonCellularNetworkProperty) {
151    return GetBooleanValue(key, value, &activate_over_non_cellular_networks_);
152  } else if (key == shill::kOutOfCreditsProperty) {
153    return GetBooleanValue(key, value, &cellular_out_of_credits_);
154  }
155  return false;
156}
157
158bool NetworkState::InitialPropertiesReceived(
159    const base::DictionaryValue& properties) {
160  NET_LOG_DEBUG("InitialPropertiesReceived", path());
161  bool changed = UpdateName(properties);
162  bool had_ca_cert_nss = has_ca_cert_nss_;
163  has_ca_cert_nss_ = IsCaCertNssSet(properties);
164  changed |= had_ca_cert_nss != has_ca_cert_nss_;
165  return changed;
166}
167
168void NetworkState::GetProperties(base::DictionaryValue* dictionary) const {
169  // Keep care that these properties are the same as in |PropertyChanged|.
170  dictionary->SetStringWithoutPathExpansion(shill::kNameProperty, name());
171  dictionary->SetStringWithoutPathExpansion(shill::kTypeProperty, type());
172  dictionary->SetIntegerWithoutPathExpansion(shill::kSignalStrengthProperty,
173                                             signal_strength_);
174  dictionary->SetStringWithoutPathExpansion(shill::kStateProperty,
175                                            connection_state_);
176  dictionary->SetBooleanWithoutPathExpansion(shill::kConnectableProperty,
177                                             connectable_);
178
179  dictionary->SetStringWithoutPathExpansion(shill::kErrorProperty, error_);
180
181  // IPConfig properties
182  base::DictionaryValue* ipconfig_properties = new base::DictionaryValue;
183  ipconfig_properties->SetStringWithoutPathExpansion(shill::kAddressProperty,
184                                                     ip_address_);
185  ipconfig_properties->SetStringWithoutPathExpansion(shill::kGatewayProperty,
186                                                     gateway_);
187  base::ListValue* name_servers = new base::ListValue;
188  name_servers->AppendStrings(dns_servers_);
189  ipconfig_properties->SetWithoutPathExpansion(shill::kNameServersProperty,
190                                               name_servers);
191  ipconfig_properties->SetStringWithoutPathExpansion(
192      shill::kWebProxyAutoDiscoveryUrlProperty,
193      web_proxy_auto_discovery_url_.spec());
194  dictionary->SetWithoutPathExpansion(shill::kIPConfigProperty,
195                                      ipconfig_properties);
196
197  dictionary->SetStringWithoutPathExpansion(shill::kActivationStateProperty,
198                                            activation_state_);
199  dictionary->SetStringWithoutPathExpansion(shill::kRoamingStateProperty,
200                                            roaming_);
201  dictionary->SetStringWithoutPathExpansion(shill::kSecurityProperty,
202                                            security_);
203  dictionary->SetStringWithoutPathExpansion(shill::kEapMethodProperty,
204                                            eap_method_);
205
206  // ui_data_ (contains ONC source) is intentionally omitted.
207
208  dictionary->SetStringWithoutPathExpansion(
209      shill::kNetworkTechnologyProperty,
210      network_technology_);
211  dictionary->SetStringWithoutPathExpansion(shill::kDeviceProperty,
212                                            device_path_);
213  dictionary->SetStringWithoutPathExpansion(shill::kGuidProperty, guid_);
214  dictionary->SetStringWithoutPathExpansion(shill::kProfileProperty,
215                                            profile_path_);
216  dictionary->SetBooleanWithoutPathExpansion(
217      shill::kActivateOverNonCellularNetworkProperty,
218      activate_over_non_cellular_networks_);
219  dictionary->SetBooleanWithoutPathExpansion(shill::kOutOfCreditsProperty,
220                                             cellular_out_of_credits_);
221}
222
223bool NetworkState::RequiresActivation() const {
224  return (type() == shill::kTypeCellular &&
225          activation_state() != shill::kActivationStateActivated &&
226          activation_state() != shill::kActivationStateUnknown);
227}
228
229bool NetworkState::IsConnectedState() const {
230  return StateIsConnected(connection_state_);
231}
232
233bool NetworkState::IsConnectingState() const {
234  return StateIsConnecting(connection_state_);
235}
236
237bool NetworkState::IsPrivate() const {
238  return !profile_path_.empty() &&
239      profile_path_ != NetworkProfileHandler::GetSharedProfilePath();
240}
241
242std::string NetworkState::GetDnsServersAsString() const {
243  std::string result;
244  for (size_t i = 0; i < dns_servers_.size(); ++i) {
245    if (i != 0)
246      result += ",";
247    result += dns_servers_[i];
248  }
249  return result;
250}
251
252std::string NetworkState::GetNetmask() const {
253  return network_util::PrefixLengthToNetmask(prefix_length_);
254}
255
256bool NetworkState::UpdateName(const base::DictionaryValue& properties) {
257  std::string updated_name =
258      shill_property_util::GetNameFromProperties(path(), properties);
259  if (updated_name != name()) {
260    set_name(updated_name);
261    return true;
262  }
263  return false;
264}
265
266// static
267bool NetworkState::StateIsConnected(const std::string& connection_state) {
268  return (connection_state == shill::kStateReady ||
269          connection_state == shill::kStateOnline ||
270          connection_state == shill::kStatePortal);
271}
272
273// static
274bool NetworkState::StateIsConnecting(const std::string& connection_state) {
275  return (connection_state == shill::kStateAssociation ||
276          connection_state == shill::kStateConfiguration ||
277          connection_state == shill::kStateCarrier);
278}
279
280// static
281std::string NetworkState::IPConfigProperty(const char* key) {
282  return base::StringPrintf("%s.%s", shill::kIPConfigProperty, key);
283}
284
285}  // namespace chromeos
286