src/chromeos/network/network_configuration_handler.cc

   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_configuration_handler.h"
   6
   7 #include <string>
   8 #include <vector>
   9
  10 #include "base/bind.h"
  11 #include "base/format_macros.h"
  12 #include "base/json/json_writer.h"
  13 #include "base/logging.h"
  14 #include "base/memory/ref_counted.h"
  15 #include "base/memory/scoped_ptr.h"
  16 #include "base/stl_util.h"
  17 #include "base/strings/stringprintf.h"
  18 #include "base/values.h"
  19 #include "chromeos/dbus/dbus_thread_manager.h"
  20 #include "chromeos/dbus/shill_manager_client.h"
  21 #include "chromeos/dbus/shill_profile_client.h"
  22 #include "chromeos/dbus/shill_service_client.h"
  23 #include "chromeos/network/network_event_log.h"
  24 #include "chromeos/network/network_state_handler.h"
  25 #include "chromeos/network/shill_property_util.h"
  26 #include "dbus/object_path.h"
  27 #include "third_party/cros_system_api/dbus/service_constants.h"
  28
  29 namespace chromeos {
  30
  31 namespace {
  32
  33 // Strip surrounding "" from keys (if present).
  34 std::string StripQuotations(const std::string& in_str) {
  35   size_t len = in_str.length();
  36   if (len >= 2 && in_str[0] == '"' && in_str[len-1] == '"')
  37     return in_str.substr(1, len-2);
  38   return in_str;
  39 }
  40
  41 void InvokeErrorCallback(const std::string& service_path,
  42                          const network_handler::ErrorCallback& error_callback,
  43                          const std::string& error_name) {
  44   std::string error_msg = "Config Error: " + error_name;
  45   NET_LOG_ERROR(error_msg, service_path);
  46   network_handler::RunErrorCallback(
  47       error_callback, service_path, error_name, error_msg);
  48 }
  49
  50 void GetPropertiesCallback(
  51     const network_handler::DictionaryResultCallback& callback,
  52     const network_handler::ErrorCallback& error_callback,
  53     const std::string& service_path,
  54     DBusMethodCallStatus call_status,
  55     const base::DictionaryValue& properties) {
  56   // Get the correct name from WifiHex if necessary.
  57   scoped_ptr<base::DictionaryValue> properties_copy(properties.DeepCopy());
  58   std::string name =
  59       shill_property_util::GetNameFromProperties(service_path, properties);
  60   if (!name.empty()) {
  61     properties_copy->SetStringWithoutPathExpansion(shill::kNameProperty, name);
  62   }
  63   if (call_status != DBUS_METHOD_CALL_SUCCESS) {
  64     // Because network services are added and removed frequently, we will see
  65     // failures regularly, so don't log these.
  66     network_handler::RunErrorCallback(error_callback,
  67                                       service_path,
  68                                       network_handler::kDBusFailedError,
  69                                       network_handler::kDBusFailedErrorMessage);
  70   } else if (!callback.is_null()) {
  71     callback.Run(service_path, *properties_copy.get());
  72   }
  73 }
  74
  75 void SetNetworkProfileErrorCallback(
  76     const std::string& service_path,
  77     const std::string& profile_path,
  78     const network_handler::ErrorCallback& error_callback,
  79     const std::string& dbus_error_name,
  80     const std::string& dbus_error_message) {
  81   network_handler::ShillErrorCallbackFunction(
  82       "Config.SetNetworkProfile Failed: " + profile_path,
  83       service_path, error_callback,
  84       dbus_error_name, dbus_error_message);
  85 }
  86
  87 bool IsPassphrase(const std::string& key) {
  88   return key == shill::kEapPrivateKeyPasswordProperty ||
  89       key == shill::kEapPasswordProperty ||
  90       key == shill::kL2tpIpsecPasswordProperty ||
  91       key == shill::kOpenVPNPasswordProperty ||
  92       key == shill::kPassphraseProperty ||
  93       key == shill::kOpenVPNOTPProperty ||
  94       key == shill::kEapPrivateKeyProperty ||
  95       key == shill::kEapPinProperty ||
  96       key == shill::kApnPasswordProperty;
  97 }
  98
  99 void LogConfigProperties(const std::string& desc,
 100                          const std::string& path,
 101                          const base::DictionaryValue& properties) {
 102   for (base::DictionaryValue::Iterator iter(properties);
 103        !iter.IsAtEnd(); iter.Advance()) {
 104     std::string v = "******";
 105     if (!IsPassphrase(iter.key()))
 106       base::JSONWriter::Write(&iter.value(), &v);
 107     NET_LOG_DEBUG(desc,  path + "." + iter.key() + "=" + v);
 108   }
 109 }
 110
 111 }  // namespace
 112
 113 // Helper class to request from Shill the profile entries associated with a
 114 // Service and delete the service from each profile. Triggers either
 115 // |callback| on success or |error_callback| on failure, and calls
 116 // |handler|->ProfileEntryDeleterCompleted() on completion to delete itself.
 117 class NetworkConfigurationHandler::ProfileEntryDeleter
 118     : public base::SupportsWeakPtr<ProfileEntryDeleter> {
 119  public:
 120   ProfileEntryDeleter(NetworkConfigurationHandler* handler,
 121                       const std::string& service_path,
 122                       const base::Closure& callback,
 123                       const network_handler::ErrorCallback& error_callback)
 124       : owner_(handler),
 125         service_path_(service_path),
 126         callback_(callback),
 127         error_callback_(error_callback) {
 128   }
 129
 130   void Run() {
 131     DBusThreadManager::Get()->GetShillServiceClient()->
 132         GetLoadableProfileEntries(
 133             dbus::ObjectPath(service_path_),
 134             base::Bind(&ProfileEntryDeleter::GetProfileEntriesToDeleteCallback,
 135                        AsWeakPtr()));
 136   }
 137
 138  private:
 139   void GetProfileEntriesToDeleteCallback(
 140       DBusMethodCallStatus call_status,
 141       const base::DictionaryValue& profile_entries) {
 142     if (call_status != DBUS_METHOD_CALL_SUCCESS) {
 143       InvokeErrorCallback(
 144           service_path_, error_callback_, "GetLoadableProfileEntriesFailed");
 145       owner_->ProfileEntryDeleterCompleted(service_path_);  // Deletes this.
 146       return;
 147     }
 148
 149     for (base::DictionaryValue::Iterator iter(profile_entries);
 150          !iter.IsAtEnd(); iter.Advance()) {
 151       std::string profile_path = StripQuotations(iter.key());
 152       std::string entry_path;
 153       iter.value().GetAsString(&entry_path);
 154       if (profile_path.empty() || entry_path.empty()) {
 155         NET_LOG_ERROR("Failed to parse Profile Entry", base::StringPrintf(
 156             "%s: %s", profile_path.c_str(), entry_path.c_str()));
 157         continue;
 158       }
 159       if (profile_delete_entries_.count(profile_path) != 0) {
 160         NET_LOG_ERROR("Multiple Profile Entries", base::StringPrintf(
 161             "%s: %s", profile_path.c_str(), entry_path.c_str()));
 162         continue;
 163       }
 164       NET_LOG_DEBUG("Delete Profile Entry", base::StringPrintf(
 165           "%s: %s", profile_path.c_str(), entry_path.c_str()));
 166       profile_delete_entries_[profile_path] = entry_path;
 167       DBusThreadManager::Get()->GetShillProfileClient()->DeleteEntry(
 168           dbus::ObjectPath(profile_path),
 169           entry_path,
 170           base::Bind(&ProfileEntryDeleter::ProfileEntryDeletedCallback,
 171                      AsWeakPtr(), profile_path, entry_path),
 172           base::Bind(&ProfileEntryDeleter::ShillErrorCallback,
 173                      AsWeakPtr(), profile_path, entry_path));
 174     }
 175   }
 176
 177   void ProfileEntryDeletedCallback(const std::string& profile_path,
 178                                    const std::string& entry) {
 179     NET_LOG_DEBUG("Profile Entry Deleted", base::StringPrintf(
 180         "%s: %s", profile_path.c_str(), entry.c_str()));
 181     profile_delete_entries_.erase(profile_path);
 182     if (!profile_delete_entries_.empty())
 183       return;
 184     // Run the callback if this is the last pending deletion.
 185     if (!callback_.is_null())
 186       callback_.Run();
 187     // Request NetworkStateHandler manager update to update ServiceCompleteList.
 188     owner_->network_state_handler_->UpdateManagerProperties();
 189     owner_->ProfileEntryDeleterCompleted(service_path_);  // Deletes this.
 190   }
 191
 192   void ShillErrorCallback(const std::string& profile_path,
 193                           const std::string& entry,
 194                           const std::string& dbus_error_name,
 195                           const std::string& dbus_error_message) {
 196     // Any Shill Error triggers a failure / error.
 197     network_handler::ShillErrorCallbackFunction(
 198         "GetLoadableProfileEntries Failed", profile_path, error_callback_,
 199         dbus_error_name, dbus_error_message);
 200     // Delete this even if there are pending deletions; any callbacks will
 201     // safely become no-ops (by invalidating the WeakPtrs).
 202     owner_->ProfileEntryDeleterCompleted(service_path_);  // Deletes this.
 203   }
 204
 205   NetworkConfigurationHandler* owner_;  // Unowned
 206   std::string service_path_;
 207   base::Closure callback_;
 208   network_handler::ErrorCallback error_callback_;
 209
 210   // Map of pending profile entry deletions, indexed by profile path.
 211   std::map<std::string, std::string> profile_delete_entries_;
 212
 213   DISALLOW_COPY_AND_ASSIGN(ProfileEntryDeleter);
 214 };
 215
 216 // NetworkConfigurationHandler
 217
 218 void NetworkConfigurationHandler::GetProperties(
 219     const std::string& service_path,
 220     const network_handler::DictionaryResultCallback& callback,
 221     const network_handler::ErrorCallback& error_callback) const {
 222   DBusThreadManager::Get()->GetShillServiceClient()->GetProperties(
 223       dbus::ObjectPath(service_path),
 224       base::Bind(&GetPropertiesCallback,
 225                  callback, error_callback, service_path));
 226 }
 227
 228 void NetworkConfigurationHandler::SetProperties(
 229     const std::string& service_path,
 230     const base::DictionaryValue& properties,
 231     const base::Closure& callback,
 232     const network_handler::ErrorCallback& error_callback) {
 233   if (properties.empty()) {
 234     if (!callback.is_null())
 235       callback.Run();
 236     return;
 237   }
 238   NET_LOG_USER("SetProperties", service_path);
 239   LogConfigProperties("SetProperty", service_path, properties);
 240
 241   DBusThreadManager::Get()->GetShillServiceClient()->SetProperties(
 242       dbus::ObjectPath(service_path),
 243       properties,
 244       base::Bind(&NetworkConfigurationHandler::SetPropertiesSuccessCallback,
 245                  AsWeakPtr(), service_path, callback),
 246       base::Bind(&NetworkConfigurationHandler::SetPropertiesErrorCallback,
 247                  AsWeakPtr(), service_path, error_callback));
 248 }
 249
 250 void NetworkConfigurationHandler::ClearProperties(
 251     const std::string& service_path,
 252     const std::vector<std::string>& names,
 253     const base::Closure& callback,
 254     const network_handler::ErrorCallback& error_callback) {
 255   if (names.empty()) {
 256     if (!callback.is_null())
 257       callback.Run();
 258     return;
 259   }
 260   NET_LOG_USER("ClearProperties", service_path);
 261   for (std::vector<std::string>::const_iterator iter = names.begin();
 262        iter != names.end(); ++iter) {
 263     NET_LOG_DEBUG("ClearProperty", service_path + "." + *iter);
 264   }
 265   DBusThreadManager::Get()->GetShillServiceClient()->ClearProperties(
 266       dbus::ObjectPath(service_path),
 267       names,
 268       base::Bind(&NetworkConfigurationHandler::ClearPropertiesSuccessCallback,
 269                  AsWeakPtr(), service_path, names, callback, error_callback),
 270       base::Bind(&NetworkConfigurationHandler::ClearPropertiesErrorCallback,
 271                  AsWeakPtr(), service_path, error_callback));
 272 }
 273
 274 void NetworkConfigurationHandler::CreateConfiguration(
 275     const base::DictionaryValue& properties,
 276     const network_handler::StringResultCallback& callback,
 277     const network_handler::ErrorCallback& error_callback) {
 278   ShillManagerClient* manager =
 279       DBusThreadManager::Get()->GetShillManagerClient();
 280   std::string type;
 281   properties.GetStringWithoutPathExpansion(shill::kTypeProperty, &type);
 282   if (NetworkTypePattern::Ethernet().MatchesType(type)) {
 283     InvokeErrorCallback(
 284         "" /* no service path */,
 285         error_callback,
 286         "ConfigureServiceForProfile is not implemented for Ethernet");
 287     return;
 288   }
 289
 290   NET_LOG_USER("CreateConfiguration", type);
 291   LogConfigProperties("Configure", type, properties);
 292
 293   std::string profile;
 294   properties.GetStringWithoutPathExpansion(shill::kProfileProperty,
 295                                            &profile);
 296   DCHECK(!profile.empty());
 297   manager->ConfigureServiceForProfile(
 298       dbus::ObjectPath(profile),
 299       properties,
 300       base::Bind(&NetworkConfigurationHandler::RunCreateNetworkCallback,
 301                  AsWeakPtr(),
 302                  callback),
 303       base::Bind(&network_handler::ShillErrorCallbackFunction,
 304                  "Config.CreateConfiguration Failed",
 305                  "",
 306                  error_callback));
 307 }
 308
 309 void NetworkConfigurationHandler::RemoveConfiguration(
 310     const std::string& service_path,
 311     const base::Closure& callback,
 312     const network_handler::ErrorCallback& error_callback) {
 313   // Service.Remove is not reliable. Instead, request the profile entries
 314   // for the service and remove each entry.
 315   if (ContainsKey(profile_entry_deleters_,service_path)) {
 316     InvokeErrorCallback(
 317         service_path, error_callback, "RemoveConfigurationInProgress");
 318     return;
 319   }
 320   NET_LOG_USER("Remove Configuration", service_path);
 321   ProfileEntryDeleter* deleter =
 322       new ProfileEntryDeleter(this, service_path, callback, error_callback);
 323   profile_entry_deleters_[service_path] = deleter;
 324   deleter->Run();
 325 }
 326
 327 void NetworkConfigurationHandler::SetNetworkProfile(
 328     const std::string& service_path,
 329     const std::string& profile_path,
 330     const base::Closure& callback,
 331     const network_handler::ErrorCallback& error_callback) {
 332   NET_LOG_USER("SetNetworkProfile", service_path + ": " + profile_path);
 333   base::StringValue profile_path_value(profile_path);
 334   DBusThreadManager::Get()->GetShillServiceClient()->SetProperty(
 335       dbus::ObjectPath(service_path),
 336       shill::kProfileProperty,
 337       profile_path_value,
 338       callback,
 339       base::Bind(&SetNetworkProfileErrorCallback,
 340                  service_path, profile_path, error_callback));
 341 }
 342
 343 // NetworkConfigurationHandler Private methods
 344
 345 NetworkConfigurationHandler::NetworkConfigurationHandler()
 346     : network_state_handler_(NULL) {
 347 }
 348
 349 NetworkConfigurationHandler::~NetworkConfigurationHandler() {
 350   STLDeleteContainerPairSecondPointers(
 351       profile_entry_deleters_.begin(), profile_entry_deleters_.end());
 352 }
 353
 354 void NetworkConfigurationHandler::Init(
 355     NetworkStateHandler* network_state_handler) {
 356   network_state_handler_ = network_state_handler;
 357 }
 358
 359 void NetworkConfigurationHandler::RunCreateNetworkCallback(
 360     const network_handler::StringResultCallback& callback,
 361     const dbus::ObjectPath& service_path) {
 362   if (!callback.is_null())
 363     callback.Run(service_path.value());
 364   // This may also get called when CreateConfiguration is used to update an
 365   // existing configuration, so request a service update just in case.
 366   // TODO(pneubeck): Separate 'Create' and 'Update' calls and only trigger
 367   // this on an update.
 368   network_state_handler_->RequestUpdateForNetwork(service_path.value());
 369 }
 370
 371 void NetworkConfigurationHandler::ProfileEntryDeleterCompleted(
 372     const std::string& service_path) {
 373   std::map<std::string, ProfileEntryDeleter*>::iterator iter =
 374       profile_entry_deleters_.find(service_path);
 375   DCHECK(iter != profile_entry_deleters_.end());
 376   delete iter->second;
 377   profile_entry_deleters_.erase(iter);
 378 }
 379
 380 void NetworkConfigurationHandler::SetPropertiesSuccessCallback(
 381     const std::string& service_path,
 382     const base::Closure& callback) {
 383   if (!callback.is_null())
 384     callback.Run();
 385   network_state_handler_->RequestUpdateForNetwork(service_path);
 386 }
 387
 388 void NetworkConfigurationHandler::SetPropertiesErrorCallback(
 389     const std::string& service_path,
 390     const network_handler::ErrorCallback& error_callback,
 391     const std::string& dbus_error_name,
 392     const std::string& dbus_error_message) {
 393   network_handler::ShillErrorCallbackFunction(
 394       "Config.SetProperties Failed",
 395       service_path, error_callback,
 396       dbus_error_name, dbus_error_message);
 397   // Some properties may have changed so request an update regardless.
 398   network_state_handler_->RequestUpdateForNetwork(service_path);
 399 }
 400
 401 void NetworkConfigurationHandler::ClearPropertiesSuccessCallback(
 402     const std::string& service_path,
 403     const std::vector<std::string>& names,
 404     const base::Closure& callback,
 405     const network_handler::ErrorCallback& error_callback,
 406     const base::ListValue& result) {
 407   const std::string kClearPropertiesFailedError("Error.ClearPropertiesFailed");
 408   DCHECK(names.size() == result.GetSize())
 409       << "Incorrect result size from ClearProperties.";
 410
 411   bool some_failed = false;
 412   for (size_t i = 0; i < result.GetSize(); ++i) {
 413     bool success = false;
 414     result.GetBoolean(i, &success);
 415     if (!success) {
 416       NET_LOG_ERROR("ClearProperties Failed: " + names[i], service_path);
 417       some_failed = true;
 418     }
 419   }
 420
 421   if (some_failed) {
 422     if (!error_callback.is_null()) {
 423       scoped_ptr<base::DictionaryValue> error_data(
 424           network_handler::CreateErrorData(
 425               service_path, kClearPropertiesFailedError,
 426               base::StringPrintf("Errors: %" PRIuS, result.GetSize())));
 427       error_data->Set("errors", result.DeepCopy());
 428       scoped_ptr<base::ListValue> name_list(new base::ListValue);
 429       name_list->AppendStrings(names);
 430       error_data->Set("names", name_list.release());
 431       error_callback.Run(kClearPropertiesFailedError, error_data.Pass());
 432     }
 433   } else if (!callback.is_null()) {
 434     callback.Run();
 435   }
 436   network_state_handler_->RequestUpdateForNetwork(service_path);
 437 }
 438
 439 void NetworkConfigurationHandler::ClearPropertiesErrorCallback(
 440     const std::string& service_path,
 441     const network_handler::ErrorCallback& error_callback,
 442     const std::string& dbus_error_name,
 443     const std::string& dbus_error_message) {
 444   network_handler::ShillErrorCallbackFunction(
 445       "Config.ClearProperties Failed",
 446       service_path, error_callback,
 447       dbus_error_name, dbus_error_message);
 448   // Some properties may have changed so request an update regardless.
 449   network_state_handler_->RequestUpdateForNetwork(service_path);
 450 }
 451
 452 // static
 453 NetworkConfigurationHandler* NetworkConfigurationHandler::InitializeForTest(
 454     NetworkStateHandler* network_state_handler) {
 455   NetworkConfigurationHandler* handler = new NetworkConfigurationHandler();
 456   handler->Init(network_state_handler);
 457   return handler;
 458 }
 459
 460 }  // namespace chromeos