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| 1 // Copyright 2014 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 "chrome/browser/metrics/network_metrics_provider.h" | |
| 6 | |
| 7 #include <string> | |
| 8 #include <vector> | |
| 9 | |
| 10 #include "base/compiler_specific.h" | |
| 11 #include "base/strings/string_number_conversions.h" | |
| 12 #include "base/strings/string_split.h" | |
| 13 #include "base/strings/string_util.h" | |
| 14 #include "base/task_runner_util.h" | |
| 15 #include "base/threading/sequenced_worker_pool.h" | |
| 16 #include "content/public/browser/browser_thread.h" | |
| 17 | |
| 18 #if defined(OS_CHROMEOS) | |
| 19 #include "chrome/browser/metrics/wifi_access_point_info_provider_chromeos.h" | |
| 20 #endif // OS_CHROMEOS | |
| 21 | |
| 22 using metrics::SystemProfileProto; | |
| 23 | |
| 24 NetworkMetricsProvider::NetworkMetricsProvider() | |
| 25 : connection_type_is_ambiguous_(false), | |
| 26 wifi_phy_layer_protocol_is_ambiguous_(false), | |
| 27 wifi_phy_layer_protocol_(net::WIFI_PHY_LAYER_PROTOCOL_UNKNOWN), | |
| 28 weak_ptr_factory_(this) { | |
| 29 net::NetworkChangeNotifier::AddConnectionTypeObserver(this); | |
| 30 connection_type_ = net::NetworkChangeNotifier::GetConnectionType(); | |
| 31 ProbeWifiPHYLayerProtocol(); | |
| 32 } | |
| 33 | |
| 34 NetworkMetricsProvider::~NetworkMetricsProvider() { | |
| 35 net::NetworkChangeNotifier::RemoveConnectionTypeObserver(this); | |
| 36 } | |
| 37 | |
| 38 void NetworkMetricsProvider::OnDidCreateMetricsLog() { | |
| 39 net::NetworkChangeNotifier::LogOperatorCodeHistogram( | |
| 40 net::NetworkChangeNotifier::GetConnectionType()); | |
| 41 } | |
| 42 | |
| 43 void NetworkMetricsProvider::ProvideSystemProfileMetrics( | |
| 44 SystemProfileProto* system_profile) { | |
| 45 SystemProfileProto::Network* network = system_profile->mutable_network(); | |
| 46 network->set_connection_type_is_ambiguous(connection_type_is_ambiguous_); | |
| 47 network->set_connection_type(GetConnectionType()); | |
| 48 network->set_wifi_phy_layer_protocol_is_ambiguous( | |
| 49 wifi_phy_layer_protocol_is_ambiguous_); | |
| 50 network->set_wifi_phy_layer_protocol(GetWifiPHYLayerProtocol()); | |
| 51 | |
| 52 // Resets the "ambiguous" flags, since a new metrics log session has started. | |
| 53 connection_type_is_ambiguous_ = false; | |
| 54 // TODO(isherman): This line seems unnecessary. | |
| 55 connection_type_ = net::NetworkChangeNotifier::GetConnectionType(); | |
| 56 wifi_phy_layer_protocol_is_ambiguous_ = false; | |
| 57 | |
| 58 if (!wifi_access_point_info_provider_.get()) { | |
| 59 #if defined(OS_CHROMEOS) | |
| 60 wifi_access_point_info_provider_.reset( | |
| 61 new WifiAccessPointInfoProviderChromeos()); | |
| 62 #else | |
| 63 wifi_access_point_info_provider_.reset( | |
| 64 new WifiAccessPointInfoProvider()); | |
| 65 #endif // OS_CHROMEOS | |
| 66 } | |
| 67 | |
| 68 // Connected wifi access point information. | |
| 69 WifiAccessPointInfoProvider::WifiAccessPointInfo info; | |
| 70 if (wifi_access_point_info_provider_->GetInfo(&info)) | |
| 71 WriteWifiAccessPointProto(info, network); | |
| 72 } | |
| 73 | |
| 74 void NetworkMetricsProvider::OnConnectionTypeChanged( | |
| 75 net::NetworkChangeNotifier::ConnectionType type) { | |
| 76 if (type == net::NetworkChangeNotifier::CONNECTION_NONE) | |
| 77 return; | |
| 78 if (type != connection_type_ && | |
| 79 connection_type_ != net::NetworkChangeNotifier::CONNECTION_NONE) { | |
| 80 connection_type_is_ambiguous_ = true; | |
| 81 } | |
| 82 connection_type_ = type; | |
| 83 | |
| 84 ProbeWifiPHYLayerProtocol(); | |
| 85 } | |
| 86 | |
| 87 SystemProfileProto::Network::ConnectionType | |
| 88 NetworkMetricsProvider::GetConnectionType() const { | |
| 89 switch (connection_type_) { | |
| 90 case net::NetworkChangeNotifier::CONNECTION_NONE: | |
| 91 case net::NetworkChangeNotifier::CONNECTION_UNKNOWN: | |
| 92 return SystemProfileProto::Network::CONNECTION_UNKNOWN; | |
| 93 case net::NetworkChangeNotifier::CONNECTION_ETHERNET: | |
| 94 return SystemProfileProto::Network::CONNECTION_ETHERNET; | |
| 95 case net::NetworkChangeNotifier::CONNECTION_WIFI: | |
| 96 return SystemProfileProto::Network::CONNECTION_WIFI; | |
| 97 case net::NetworkChangeNotifier::CONNECTION_2G: | |
| 98 return SystemProfileProto::Network::CONNECTION_2G; | |
| 99 case net::NetworkChangeNotifier::CONNECTION_3G: | |
| 100 return SystemProfileProto::Network::CONNECTION_3G; | |
| 101 case net::NetworkChangeNotifier::CONNECTION_4G: | |
| 102 return SystemProfileProto::Network::CONNECTION_4G; | |
| 103 case net::NetworkChangeNotifier::CONNECTION_BLUETOOTH: | |
| 104 return SystemProfileProto::Network::CONNECTION_BLUETOOTH; | |
| 105 } | |
| 106 NOTREACHED(); | |
| 107 return SystemProfileProto::Network::CONNECTION_UNKNOWN; | |
| 108 } | |
| 109 | |
| 110 SystemProfileProto::Network::WifiPHYLayerProtocol | |
| 111 NetworkMetricsProvider::GetWifiPHYLayerProtocol() const { | |
| 112 switch (wifi_phy_layer_protocol_) { | |
| 113 case net::WIFI_PHY_LAYER_PROTOCOL_NONE: | |
| 114 return SystemProfileProto::Network::WIFI_PHY_LAYER_PROTOCOL_NONE; | |
| 115 case net::WIFI_PHY_LAYER_PROTOCOL_ANCIENT: | |
| 116 return SystemProfileProto::Network::WIFI_PHY_LAYER_PROTOCOL_ANCIENT; | |
| 117 case net::WIFI_PHY_LAYER_PROTOCOL_A: | |
| 118 return SystemProfileProto::Network::WIFI_PHY_LAYER_PROTOCOL_A; | |
| 119 case net::WIFI_PHY_LAYER_PROTOCOL_B: | |
| 120 return SystemProfileProto::Network::WIFI_PHY_LAYER_PROTOCOL_B; | |
| 121 case net::WIFI_PHY_LAYER_PROTOCOL_G: | |
| 122 return SystemProfileProto::Network::WIFI_PHY_LAYER_PROTOCOL_G; | |
| 123 case net::WIFI_PHY_LAYER_PROTOCOL_N: | |
| 124 return SystemProfileProto::Network::WIFI_PHY_LAYER_PROTOCOL_N; | |
| 125 case net::WIFI_PHY_LAYER_PROTOCOL_UNKNOWN: | |
| 126 return SystemProfileProto::Network::WIFI_PHY_LAYER_PROTOCOL_UNKNOWN; | |
| 127 } | |
| 128 NOTREACHED(); | |
| 129 return SystemProfileProto::Network::WIFI_PHY_LAYER_PROTOCOL_UNKNOWN; | |
| 130 } | |
| 131 | |
| 132 void NetworkMetricsProvider::ProbeWifiPHYLayerProtocol() { | |
| 133 PostTaskAndReplyWithResult( | |
| 134 content::BrowserThread::GetBlockingPool(), | |
| 135 FROM_HERE, | |
| 136 base::Bind(&net::GetWifiPHYLayerProtocol), | |
| 137 base::Bind(&NetworkMetricsProvider::OnWifiPHYLayerProtocolResult, | |
| 138 weak_ptr_factory_.GetWeakPtr())); | |
| 139 } | |
| 140 | |
| 141 void NetworkMetricsProvider::OnWifiPHYLayerProtocolResult( | |
| 142 net::WifiPHYLayerProtocol mode) { | |
| 143 if (wifi_phy_layer_protocol_ != net::WIFI_PHY_LAYER_PROTOCOL_UNKNOWN && | |
| 144 mode != wifi_phy_layer_protocol_) { | |
| 145 wifi_phy_layer_protocol_is_ambiguous_ = true; | |
| 146 } | |
| 147 wifi_phy_layer_protocol_ = mode; | |
| 148 } | |
| 149 | |
| 150 void NetworkMetricsProvider::WriteWifiAccessPointProto( | |
| 151 const WifiAccessPointInfoProvider::WifiAccessPointInfo& info, | |
| 152 SystemProfileProto::Network* network_proto) { | |
| 153 SystemProfileProto::Network::WifiAccessPoint* access_point_info = | |
| 154 network_proto->mutable_access_point_info(); | |
| 155 SystemProfileProto::Network::WifiAccessPoint::SecurityMode security = | |
| 156 SystemProfileProto::Network::WifiAccessPoint::SECURITY_UNKNOWN; | |
| 157 switch (info.security) { | |
| 158 case WifiAccessPointInfoProvider::WIFI_SECURITY_NONE: | |
| 159 security = SystemProfileProto::Network::WifiAccessPoint::SECURITY_NONE; | |
| 160 break; | |
| 161 case WifiAccessPointInfoProvider::WIFI_SECURITY_WPA: | |
| 162 security = SystemProfileProto::Network::WifiAccessPoint::SECURITY_WPA; | |
| 163 break; | |
| 164 case WifiAccessPointInfoProvider::WIFI_SECURITY_WEP: | |
| 165 security = SystemProfileProto::Network::WifiAccessPoint::SECURITY_WEP; | |
| 166 break; | |
| 167 case WifiAccessPointInfoProvider::WIFI_SECURITY_RSN: | |
| 168 security = SystemProfileProto::Network::WifiAccessPoint::SECURITY_RSN; | |
| 169 break; | |
| 170 case WifiAccessPointInfoProvider::WIFI_SECURITY_802_1X: | |
| 171 security = SystemProfileProto::Network::WifiAccessPoint::SECURITY_802_1X; | |
| 172 break; | |
| 173 case WifiAccessPointInfoProvider::WIFI_SECURITY_PSK: | |
| 174 security = SystemProfileProto::Network::WifiAccessPoint::SECURITY_PSK; | |
| 175 break; | |
| 176 case WifiAccessPointInfoProvider::WIFI_SECURITY_UNKNOWN: | |
| 177 security = SystemProfileProto::Network::WifiAccessPoint::SECURITY_UNKNOWN; | |
| 178 break; | |
| 179 } | |
| 180 access_point_info->set_security_mode(security); | |
| 181 | |
| 182 // |bssid| is xx:xx:xx:xx:xx:xx, extract the first three components and | |
| 183 // pack into a uint32. | |
| 184 std::string bssid = info.bssid; | |
| 185 if (bssid.size() == 17 && bssid[2] == ':' && bssid[5] == ':' && | |
| 186 bssid[8] == ':' && bssid[11] == ':' && bssid[14] == ':') { | |
| 187 std::string vendor_prefix_str; | |
| 188 uint32 vendor_prefix; | |
| 189 | |
| 190 base::RemoveChars(bssid.substr(0, 9), ":", &vendor_prefix_str); | |
| 191 DCHECK_EQ(6U, vendor_prefix_str.size()); | |
| 192 if (base::HexStringToUInt(vendor_prefix_str, &vendor_prefix)) | |
| 193 access_point_info->set_vendor_prefix(vendor_prefix); | |
| 194 else | |
| 195 NOTREACHED(); | |
| 196 } | |
| 197 | |
| 198 // Return if vendor information is not provided. | |
| 199 if (info.model_number.empty() && info.model_name.empty() && | |
| 200 info.device_name.empty() && info.oui_list.empty()) | |
| 201 return; | |
| 202 | |
| 203 SystemProfileProto::Network::WifiAccessPoint::VendorInformation* vendor = | |
| 204 access_point_info->mutable_vendor_info(); | |
| 205 if (!info.model_number.empty()) | |
| 206 vendor->set_model_number(info.model_number); | |
| 207 if (!info.model_name.empty()) | |
| 208 vendor->set_model_name(info.model_name); | |
| 209 if (!info.device_name.empty()) | |
| 210 vendor->set_device_name(info.device_name); | |
| 211 | |
| 212 // Return if OUI list is not provided. | |
| 213 if (info.oui_list.empty()) | |
| 214 return; | |
| 215 | |
| 216 // Parse OUI list. | |
| 217 std::vector<std::string> oui_list; | |
| 218 base::SplitString(info.oui_list, ' ', &oui_list); | |
| 219 for (std::vector<std::string>::const_iterator it = oui_list.begin(); | |
| 220 it != oui_list.end(); | |
| 221 ++it) { | |
| 222 uint32 oui; | |
| 223 if (base::HexStringToUInt(*it, &oui)) | |
| 224 vendor->add_element_identifier(oui); | |
| 225 else | |
| 226 NOTREACHED(); | |
| 227 } | |
| 228 } | |
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