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// 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.
#ifndef COMPONENTS_PROXIMITY_AUTH_PROXIMITY_AUTH_SYSTEM_H
#define COMPONENTS_PROXIMITY_AUTH_PROXIMITY_AUTH_SYSTEM_H
#include <memory>
#include <vector>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "components/cryptauth/remote_device.h"
#include "components/proximity_auth/remote_device_life_cycle.h"
#include "components/proximity_auth/screenlock_bridge.h"
#include "components/signin/core/account_id/account_id.h"
namespace proximity_auth {
class ProximityAuthClient;
class RemoteDeviceLifeCycle;
class UnlockManager;
// This is the main entry point to start Proximity Auth, the underlying system
// for the Smart Lock feature. Given a list of remote devices (i.e. a
// phone) for each registered user, the system will handle the connection,
// authentication, and messenging protocol when the screen is locked and the
// registered user is focused.
class ProximityAuthSystem : public RemoteDeviceLifeCycle::Observer,
public ScreenlockBridge::Observer {
public:
enum ScreenlockType { SESSION_LOCK, SIGN_IN };
ProximityAuthSystem(ScreenlockType screenlock_type,
ProximityAuthClient* proximity_auth_client);
~ProximityAuthSystem() override;
// Starts the system to connect and authenticate when a registered user is
// focused on the lock/sign-in screen.
void Start();
// Stops the system.
void Stop();
// Registers a list of |remote_devices| for |account_id| that can be used for
// sign-in/unlock. If devices were previously registered for the user, then
// they will be replaced.
void SetRemoteDevicesForUser(
const AccountId& account_id,
const cryptauth::RemoteDeviceList& remote_devices);
// Returns the RemoteDevices registered for |account_id|. Returns an empty
// list
// if no devices are registered for |account_id|.
cryptauth::RemoteDeviceList GetRemoteDevicesForUser(
const AccountId& account_id) const;
// Called when the user clicks the user pod and attempts to unlock/sign-in.
void OnAuthAttempted(const AccountId& account_id);
// Called when the system suspends.
void OnSuspend();
// Called when the system wakes up from a suspended state.
void OnSuspendDone();
private:
// RemoteDeviceLifeCycle::Observer:
void OnLifeCycleStateChanged(RemoteDeviceLifeCycle::State old_state,
RemoteDeviceLifeCycle::State new_state) override;
// ScreenlockBridge::Observer:
void OnScreenDidLock(
ScreenlockBridge::LockHandler::ScreenType screen_type) override;
void OnScreenDidUnlock(
ScreenlockBridge::LockHandler::ScreenType screen_type) override;
void OnFocusedUserChanged(const AccountId& account_id) override;
// Resumes |remote_device_life_cycle_| after device wakes up and waits a
// timeout.
void ResumeAfterWakeUpTimeout();
// Lists of remote devices, keyed by user account id.
std::map<AccountId, cryptauth::RemoteDeviceList> remote_devices_map_;
// Delegate for Chrome dependent functionality.
ProximityAuthClient* proximity_auth_client_;
// Responsible for the life cycle of connecting and authenticating to
// the RemoteDevice of the currently focused user.
std::unique_ptr<RemoteDeviceLifeCycle> remote_device_life_cycle_;
// Handles the interaction with the lock screen UI.
std::unique_ptr<UnlockManager> unlock_manager_;
// True if the system is suspended.
bool suspended_;
// True if the system is started_.
bool started_;
base::WeakPtrFactory<ProximityAuthSystem> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(ProximityAuthSystem);
};
} // namespace proximity_auth
#endif // COMPONENTS_PROXIMITY_AUTH_PROXIMITY_AUTH_SYSTEM_H
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