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components/wifi_sync/wifi_config_observer_chromeos.cc

Index: components/wifi_sync/wifi_config_observer_chromeos.cc
diff --git a/components/wifi_sync/wifi_config_observer_chromeos.cc b/components/wifi_sync/wifi_config_observer_chromeos.cc
new file mode 100644
index 0000000000000000000000000000000000000000..0b903c5ac0ca7e19ddd01b03495909c63770aea8
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+++ b/components/wifi_sync/wifi_config_observer_chromeos.cc
@@ -0,0 +1,235 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "components/wifi_sync/wifi_config_observer_chromeos.h"
+
+#include "base/location.h"
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/values.h"
+#include "chromeos/network/managed_network_configuration_handler.h"
+#include "chromeos/network/network_configuration_handler.h"
+#include "chromeos/network/network_state.h"
+#include "chromeos/network/network_state_handler.h"
+#include "components/wifi_sync/wifi_credential.h"
+#include "components/wifi_sync/wifi_credential_syncable_service.h"
+#include "components/wifi_sync/wifi_security_class.h"
+#include "third_party/cros_system_api/dbus/service_constants.h"
+
+namespace wifi_sync {
+
+WifiConfigObserverChromeOs::WifiConfigObserverChromeOs(
+    const std::string& user_hash,
+    chromeos::ManagedNetworkConfigurationHandler* managed_net_config_handler,
+    chromeos::NetworkConfigurationHandler* network_configuration_handler,
+    chromeos::NetworkStateHandler* network_state_handler)
+    : user_hash_(user_hash),
+      managed_network_configuration_handler_(managed_net_config_handler),
+      network_configuration_handler_(network_configuration_handler),
+      network_state_handler_(network_state_handler) {
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  DCHECK(managed_network_configuration_handler_);
+  DCHECK(network_configuration_handler_);
+  DCHECK(network_state_handler_);
+  network_configuration_handler_->AddObserver(this);
+  network_state_handler_->AddObserver(this, FROM_HERE);
+}
+
+WifiConfigObserverChromeOs::~WifiConfigObserverChromeOs() {
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  for (const WifiCredential& credential
+           : credentials_awaiting_syncable_service_) {
+    // TODO(quiche): Report event to UMA.
+    LOG(WARNING) << "No syncable_service_; did not sync "
+                 << credential.ToString();
+  }
+
+  network_state_handler_->RemoveObserver(this, FROM_HERE);
+  network_configuration_handler_->RemoveObserver(this);
+}
+
+void WifiConfigObserverChromeOs::StartSyncing(
+    base::WeakPtr<WifiCredentialSyncableService> syncable_service) {
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  DCHECK(syncable_service);
+  DCHECK(!syncable_service_);
+  syncable_service_ = syncable_service;
+  for (const WifiCredential& credential
+           : credentials_awaiting_syncable_service_)
+    syncable_service_->AddToSyncedNetworks(credential);
+  credentials_awaiting_syncable_service_.clear();
+}
+
+void WifiConfigObserverChromeOs::StopSyncing() {
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  syncable_service_.reset();
+}
+
+// Note: This function is not called when a network is created from
+// scan results. We handle such networks via OnPropertiesSet and/or
+// OnConfigurationProfileChanged.
+void WifiConfigObserverChromeOs::OnConfigurationCreated(
+    const std::string& service_path,
+    const std::string& profile_path,
+    const base::DictionaryValue& properties,
+    NetworkConfigurationObserver::Source source) {
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  std::string guid;
+  if (!properties.GetStringWithoutPathExpansion(shill::kGuidProperty, &guid)) {
+    LOG(ERROR) << "Failed to read GUID for " << service_path;
+    return;
+  }
+  ProcessProperties(guid, properties, source);
+}
+
+void WifiConfigObserverChromeOs::OnConfigurationRemoved(
+    const std::string& service_path,
+    const std::string& guid,
+    NetworkConfigurationObserver::Source source) {
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  if (source != SOURCE_USER_ACTION)
+    return;
+  // TODO(quiche): send this up to |syncable_service|. crbug.com/431439
+  NOTIMPLEMENTED();
+}
+
+void WifiConfigObserverChromeOs::OnPropertiesSet(
+    const std::string& service_path,
+    const std::string& guid,
+    const base::DictionaryValue& set_properties,
+    NetworkConfigurationObserver::Source source) {
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  ProcessProperties(guid, set_properties, source);
+}
+
+// XXX may happen after NetworkConnectionStateChanged
+void WifiConfigObserverChromeOs::OnConfigurationProfileChanged(
+    const std::string& service_path,
+    const std::string& profile_path,
+    NetworkConfigurationObserver::Source source) {
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  // TODO(quiche): Consider removing this network from sync, if the
+  // new profile is not the user's profile, and is not the default
+  // profile.
+  // XXX need |source| check
+  const chromeos::NetworkState* network =
+      network_state_handler_->GetNetworkState(service_path);
+  if (!network) {
+    LOG(ERROR) << "Failed to get NetworkState for " << service_path;
+    return;
+  }
+  user_configured_service_guids_.insert(network->guid());
+  TryToSyncNetwork(network);
+}
+
+void WifiConfigObserverChromeOs::NetworkConnectionStateChanged(
+    const chromeos::NetworkState* network) {
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  DCHECK(network);
+
+  if (user_configured_service_guids_.find(network->guid()) ==
+      user_configured_service_guids_.end())
+    return;
+
+  TryToSyncNetwork(network);
+}
+
+// Private methods.
+
+void WifiConfigObserverChromeOs::ProcessProperties(
+    const std::string& guid,
+    const base::DictionaryValue& service_properties,
+    NetworkConfigurationObserver::Source source) {
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  if (source != SOURCE_USER_ACTION) {
+    // XXX Determine if we need to filter this for only
+    // passphrase changes. We would need to do so if, e.g., we get a
+    // OnPropertiesSet call for MNCH auto-generating a GUID.
+    user_configured_service_guids_.erase(guid);
+    guid_to_passphrase_.erase(guid);
+    return;
+  }
+  user_configured_service_guids_.insert(guid);
+  SavePassphraseForService(guid, service_properties);
+}
+
+void WifiConfigObserverChromeOs::SavePassphraseForService(
+    const std::string& guid,
+    const base::DictionaryValue& service_properties) {
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  if (!service_properties.HasKey(shill::kPassphraseProperty))
+    return;
+
+  std::string passphrase;
+  if (!service_properties.GetStringWithoutPathExpansion(
+          shill::kPassphraseProperty, &passphrase)) {
+    NOTREACHED() << "Property " << shill::kPassphraseProperty
+                 << " for service with guid " << guid
+                 << " is not a string";
+    return;
+  }
+
+  guid_to_passphrase_[guid] = passphrase;
+}
+
+void WifiConfigObserverChromeOs::TryToSyncNetwork(
+    const chromeos::NetworkState* network) {
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  const std::string device_policy_id = "";
+  ::onc::ONCSource onc_source;
+  if (managed_network_configuration_handler_->FindPolicyByGUID(
+          device_policy_id, network->guid(), &onc_source) ||
+      managed_network_configuration_handler_->FindPolicyByGUID(
+          user_hash_, network->guid(), &onc_source))
+    return;
+
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  if (network->type() != shill::kTypeWifi)  // XXX check hdr
+    return;
+
+  LOG(ERROR) << "*** QUICHE: " << __func__ << ": "
+             << "network " << network << " "
+             << "path " << network->path() << " "
+             << "connection state " << network->connection_state();
+  if (!network->IsConnectedState())
+    return;  // Wait until we complete the connection.
+
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  WifiSecurityClass security_class =
+      WifiSecurityClassFromShillSecurity(network->security_class());
+  if (!WifiSecurityClassIsSyncable(security_class))
+    return;
+
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  std::string passphrase;
+  if (WifiSecurityClassSupportsPassphrases(security_class)) {
+    const auto guid_to_passphrase_it =
+        guid_to_passphrase_.find(network->guid());
+    if (guid_to_passphrase_it != guid_to_passphrase_.end()) {
+      passphrase = guid_to_passphrase_it->second;
+    } else if (WifiSecurityClassRequiresPassphrase(security_class)) {
+      LOG(ERROR) << "Required passphrase is missing; skipping sync";
+      return;
+    }
+  }
+  guid_to_passphrase_.erase(network->guid());
+
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  scoped_ptr<WifiCredential> credential =
+      WifiCredential::Create(network->raw_ssid(), security_class, passphrase);
+  if (!credential) {
+    LOG(ERROR) << "Failed to create credential; skipping sync";
+    return;
+  }
+
+  LOG(ERROR) << "*** QUICHE: " << __func__;
+  if (syncable_service_)
+    syncable_service_->AddToSyncedNetworks(*credential);
+  else
+    credentials_awaiting_syncable_service_.push_back(*credential);
+
+  //  user_configured_service_guids_.erase(network->guid());
+}
+
+}  // namespace wifi_sync