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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromeos/ash/components/tether/tether_component_impl.h"
#include <memory>
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/ptr_util.h"
#include "chromeos/ash/components/multidevice/logging/logging.h"
#include "chromeos/ash/components/tether/active_host.h"
#include "chromeos/ash/components/tether/asynchronous_shutdown_object_container_impl.h"
#include "chromeos/ash/components/tether/crash_recovery_manager_impl.h"
#include "chromeos/ash/components/tether/host_scan_scheduler.h"
#include "chromeos/ash/components/tether/persistent_host_scan_cache_impl.h"
#include "chromeos/ash/components/tether/synchronous_shutdown_object_container_impl.h"
#include "chromeos/ash/components/tether/tether_disconnector.h"
#include "chromeos/ash/components/tether/tether_host_response_recorder.h"
#include "chromeos/ash/components/tether/tether_session_completion_logger.h"
#include "chromeos/ash/components/tether/wifi_hotspot_disconnector_impl.h"
#include "chromeos/ash/services/device_sync/public/cpp/device_sync_client.h"
#include "chromeos/ash/services/secure_channel/public/cpp/client/secure_channel_client.h"
#include "components/pref_registry/pref_registry_syncable.h"
namespace ash {
namespace tether {
namespace {
void OnDisconnectErrorDuringShutdown(const std::string& error_name) {
PA_LOG(WARNING) << "Error disconnecting from Tether network during shutdown; "
<< "Error name: " << error_name;
}
TetherSessionCompletionLogger::SessionCompletionReason
GetSessionCompletionReasonFromShutdownReason(
TetherComponent::ShutdownReason shutdown_reason) {
switch (shutdown_reason) {
case TetherComponent::ShutdownReason::OTHER:
return TetherSessionCompletionLogger::SessionCompletionReason::OTHER;
case TetherComponent::ShutdownReason::USER_LOGGED_OUT:
return TetherSessionCompletionLogger::SessionCompletionReason::
USER_LOGGED_OUT;
case TetherComponent::ShutdownReason::USER_CLOSED_LID:
return TetherSessionCompletionLogger::SessionCompletionReason::
USER_CLOSED_LID;
case TetherComponent::ShutdownReason::PREF_DISABLED:
return TetherSessionCompletionLogger::SessionCompletionReason::
PREF_DISABLED;
case TetherComponent::ShutdownReason::BLUETOOTH_DISABLED:
return TetherSessionCompletionLogger::SessionCompletionReason::
BLUETOOTH_DISABLED;
case TetherComponent::ShutdownReason::CELLULAR_DISABLED:
return TetherSessionCompletionLogger::SessionCompletionReason::
CELLULAR_DISABLED;
case TetherComponent::ShutdownReason::MULTIDEVICE_HOST_UNVERIFIED:
return TetherSessionCompletionLogger::SessionCompletionReason::
MULTIDEVICE_HOST_UNVERIFIED;
case TetherComponent::ShutdownReason::BETTER_TOGETHER_SUITE_DISABLED:
return TetherSessionCompletionLogger::SessionCompletionReason::
BETTER_TOGETHER_SUITE_DISABLED;
default:
break;
}
return TetherSessionCompletionLogger::SessionCompletionReason::OTHER;
}
} // namespace
// static
TetherComponentImpl::Factory* TetherComponentImpl::Factory::factory_instance_ =
nullptr;
// static
std::unique_ptr<TetherComponent> TetherComponentImpl::Factory::Create(
device_sync::DeviceSyncClient* device_sync_client,
secure_channel::SecureChannelClient* secure_channel_client,
TetherHostFetcher* tether_host_fetcher,
NotificationPresenter* notification_presenter,
GmsCoreNotificationsStateTrackerImpl* gms_core_notifications_state_tracker,
PrefService* pref_service,
NetworkHandler* network_handler,
NetworkConnect* network_connect,
scoped_refptr<device::BluetoothAdapter> adapter,
session_manager::SessionManager* session_manager) {
if (factory_instance_) {
return factory_instance_->CreateInstance(
device_sync_client, secure_channel_client, tether_host_fetcher,
notification_presenter, gms_core_notifications_state_tracker,
pref_service, network_handler, network_connect, adapter,
session_manager);
}
return base::WrapUnique(new TetherComponentImpl(
device_sync_client, secure_channel_client, tether_host_fetcher,
notification_presenter, gms_core_notifications_state_tracker,
pref_service, network_handler, network_connect, adapter,
session_manager));
}
// static
void TetherComponentImpl::Factory::SetFactoryForTesting(Factory* factory) {
factory_instance_ = factory;
}
// static
void TetherComponentImpl::RegisterProfilePrefs(
user_prefs::PrefRegistrySyncable* registry) {
ActiveHost::RegisterPrefs(registry);
PersistentHostScanCacheImpl::RegisterPrefs(registry);
TetherHostResponseRecorder::RegisterPrefs(registry);
WifiHotspotDisconnectorImpl::RegisterPrefs(registry);
}
TetherComponentImpl::TetherComponentImpl(
device_sync::DeviceSyncClient* device_sync_client,
secure_channel::SecureChannelClient* secure_channel_client,
TetherHostFetcher* tether_host_fetcher,
NotificationPresenter* notification_presenter,
GmsCoreNotificationsStateTrackerImpl* gms_core_notifications_state_tracker,
PrefService* pref_service,
NetworkHandler* network_handler,
NetworkConnect* network_connect,
scoped_refptr<device::BluetoothAdapter> adapter,
session_manager::SessionManager* session_manager)
: asynchronous_shutdown_object_container_(
AsynchronousShutdownObjectContainerImpl::Factory::Create(
device_sync_client,
secure_channel_client,
tether_host_fetcher,
network_handler->network_state_handler(),
network_handler->managed_network_configuration_handler(),
network_handler->network_connection_handler(),
pref_service)),
synchronous_shutdown_object_container_(
SynchronousShutdownObjectContainerImpl::Factory::Create(
asynchronous_shutdown_object_container_.get(),
notification_presenter,
gms_core_notifications_state_tracker,
pref_service,
network_handler,
network_connect,
session_manager,
device_sync_client,
secure_channel_client)),
crash_recovery_manager_(CrashRecoveryManagerImpl::Factory::Create(
network_handler->network_state_handler(),
synchronous_shutdown_object_container_->active_host(),
synchronous_shutdown_object_container_->host_scan_cache())) {
crash_recovery_manager_->RestorePreCrashStateIfNecessary(
base::BindOnce(&TetherComponentImpl::OnPreCrashStateRestored,
weak_ptr_factory_.GetWeakPtr()));
}
TetherComponentImpl::~TetherComponentImpl() = default;
void TetherComponentImpl::RequestShutdown(
const ShutdownReason& shutdown_reason) {
has_shutdown_been_requested_ = true;
// If shutdown has already happened, there is nothing else to do.
if (status() != TetherComponent::Status::ACTIVE) {
return;
}
shutdown_reason_ = shutdown_reason;
// If crash recovery has not yet completed, wait for it to complete before
// continuing.
if (crash_recovery_manager_) {
return;
}
InitiateShutdown();
}
void TetherComponentImpl::OnPreCrashStateRestored() {
// |crash_recovery_manager_| is no longer needed since it has completed.
crash_recovery_manager_.reset();
if (has_shutdown_been_requested_) {
InitiateShutdown();
return;
}
// Start a scan now that the Tether module has started up.
synchronous_shutdown_object_container_->host_scan_scheduler()
->AttemptScanIfOffline();
}
void TetherComponentImpl::InitiateShutdown() {
DCHECK(has_shutdown_been_requested_);
DCHECK(!crash_recovery_manager_);
DCHECK(status() == TetherComponent::Status::ACTIVE);
ActiveHost* active_host =
synchronous_shutdown_object_container_->active_host();
TetherDisconnector* tether_disconnector =
synchronous_shutdown_object_container_->tether_disconnector();
// If there is an active connection, it needs to be disconnected before the
// Tether component is shut down.
if (active_host->GetActiveHostStatus() !=
ActiveHost::ActiveHostStatus::DISCONNECTED) {
PA_LOG(VERBOSE) << "There was an active connection during Tether shutdown. "
<< "Initiating disconnection from device ID \""
<< multidevice::RemoteDeviceRef::TruncateDeviceIdForLogs(
active_host->GetActiveHostDeviceId())
<< "\".";
tether_disconnector->DisconnectFromNetwork(
active_host->GetTetherNetworkGuid(), base::DoNothing(),
base::BindOnce(&OnDisconnectErrorDuringShutdown),
GetSessionCompletionReasonFromShutdownReason(shutdown_reason_));
}
TransitionToStatus(TetherComponent::Status::SHUTTING_DOWN);
// Delete objects which can shutdown synchronously immediately.
synchronous_shutdown_object_container_.reset();
// Start the shutdown process for objects which shutdown asynchronously.
asynchronous_shutdown_object_container_->Shutdown(
base::BindOnce(&TetherComponentImpl::OnShutdownComplete,
weak_ptr_factory_.GetWeakPtr()));
}
void TetherComponentImpl::OnShutdownComplete() {
DCHECK(status() == TetherComponent::Status::SHUTTING_DOWN);
// Shutdown has completed. The asynchronous objects can now be deleted as
// well.
asynchronous_shutdown_object_container_.reset();
TransitionToStatus(TetherComponent::Status::SHUT_DOWN);
}
} // namespace tether
} // namespace ash
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