blob: 3131a0c4bd202b3dc82db5742dadf6006741d793 [file] [log] [blame]
// Copyright 2014 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 <string>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "chromeos/chromeos_export.h"
#include "chromeos/login/login_state.h"
#include "chromeos/network/client_cert_resolver.h"
#include "chromeos/network/network_connection_observer.h"
#include "chromeos/network/network_handler.h"
#include "chromeos/network/network_policy_observer.h"
#include "chromeos/network/network_state_handler_observer.h"
namespace chromeos {
class CHROMEOS_EXPORT AutoConnectHandler : public LoginState::Observer,
public NetworkPolicyObserver,
public NetworkConnectionObserver,
public NetworkStateHandlerObserver,
public ClientCertResolver::Observer {
enum AutoConnectReason {
class Observer {
// Note: |auto_connect_reasons| is computed by applying the bitwise OR
// operation to all AutoConnectReasons which triggered auto-connect.
virtual void OnAutoConnectedInitiated(int auto_connect_reasons) = 0;
~AutoConnectHandler() override;
// LoginState::Observer
void LoggedInStateChanged() override;
// NetworkConnectionObserver
void ConnectToNetworkRequested(const std::string& service_path) override;
// NetworkPolicyObserver
void PoliciesApplied(const std::string& userhash) override;
// NetworkStateHandlerObserver
void ScanCompleted(const DeviceState* device) override;
// ClientCertResolver::Observer
void ResolveRequestCompleted(bool network_properties_changed) override;
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
void NotifyAutoConnectInitiatedForTest(int auto_connect_reasons);
friend class NetworkHandler;
friend class AutoConnectHandlerTest;
void Init(ClientCertResolver* client_cert_resolver,
NetworkConnectionHandler* network_connection_handler,
NetworkStateHandler* network_state_handler,
void NotifyAutoConnectInitiated(int auto_connect_reasons);
// This function is called whenever the logged in state changes or when a new
// policy is applied. Once both device and user policy have been applied and
// either of AllowOnlyPolicyNetworksToConnect or
// AllowOnlyPolicyNetworksToAutoconnect is enabled, we disconnect from all
// connecting/connected unmanaged networks and either remove the network
// configuration (for AllowOnlyPolicyNetworksToConnect) or only disable
// auto-connect (for AllowOnlyPolicyNetworksToAutoconnect) for all aunmanaged
// networks (see |DisconnectFromAllUnmanagedWiFiNetworks(...)|).
// For the AllowOnlyPolicyNetworksToAutoconnect policy we only disconnect once
// to allow managed networks to auto-connect and prevent disconnects with
// manually connected unmanaged networks on every policy update.
void DisconnectIfPolicyRequires();
// Disconnects from all currently connected/connecting blacklisted WiFis. Also
// removes the corresponding network configuration for all blacklisted
// networks to prevent Shill from re-connecting to them (e.g. during
// ConnectToBestService).
void DisconnectAndRemoveBlacklistedNetworks();
// Disconnects from all currently connected/connecting unmanaged WiFis.
// When |remove_configuration|==true, we also remove the corresponding network
// configuration for all unmanaged networks from Shill.
// When |disable_auto_connect|==true, we also disable auto-connect for all
// unmanaged networks in Shill.
// With both options we can prevent Shill from re-connecting to the unmanaged
// networks when looking for a best service to connect to.
void DisconnectFromAllUnmanagedWiFiNetworks(bool remove_configuration,
bool disable_auto_connect);
// Disconnects the connection to the network represented by |service_path|.
void DisconnectNetwork(const std::string& service_path);
// Removes the network configuration for the network represented by
// |service_path|.
void RemoveNetworkConfigurationForNetwork(const std::string& service_path);
// Sets WiFi.AutoConnect=false for the network represented by |service_path|.
void DisableAutoconnectForWiFiNetwork(const std::string& service_path);
// Requests and if possible connects to the 'best' available network, see
// CheckBestConnection().
void RequestBestConnection(AutoConnectReason auto_connect_reason);
// If a request to connect to the best network is pending and all requirements
// are fulfilled (like policy loaded, certificate patterns being resolved),
// then this will call ConnectToBestWifiNetwork of |network_state_handler_|.
void CheckBestConnection();
// Calls Shill.Manager.ConnectToBestServices().
void CallShillConnectToBestServices();
// Local references to the associated handler instances.
ClientCertResolver* client_cert_resolver_;
NetworkConnectionHandler* network_connection_handler_;
NetworkStateHandler* network_state_handler_;
ManagedNetworkConfigurationHandler* managed_configuration_handler_;
// Whether a request to connect to the best network is pending. If true, once
// all requirements are met (like policy loaded, certificate patterns being
// resolved), a scan will be requested and ConnectToBestServices will be
// triggered once it completes.
bool request_best_connection_pending_;
// Whether the device policy, which might be empty, is already applied.
bool device_policy_applied_;
// Whether the user policy of the first user who logged in is already applied.
// The policy might be empty.
bool user_policy_applied_;
// Whether at least once client certificate patterns were checked and if any
// existed resolved. Even if there are no certificate patterns, this will be
// eventually true.
bool client_certs_resolved_;
// Whether the autoconnect policy was applied already, see
// DisconnectIfPolicyRequires().
bool applied_autoconnect_policy_;
// When true, trigger ConnectToBestServices after the next scan completion.
bool connect_to_best_services_after_scan_;
// The bitwise OR of all AutoConnectReason which have triggered auto-
// connection.
int auto_connect_reasons_;
base::ObserverList<Observer> observer_list_;
base::WeakPtrFactory<AutoConnectHandler> weak_ptr_factory_;
} // namespace chromeos