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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_POLICY_HANDLERS_DEVICE_NAME_POLICY_HANDLER_IMPL_H_
#define CHROME_BROWSER_ASH_POLICY_HANDLERS_DEVICE_NAME_POLICY_HANDLER_IMPL_H_
#include <memory>
#include <string>
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/scoped_observation.h"
#include "chrome/browser/ash/policy/handlers/device_name_policy_handler.h"
#include "chromeos/ash/components/network/network_state_handler_observer.h"
#include "chromeos/ash/components/settings/cros_settings.h"
#include "chromeos/ash/components/system/statistics_provider.h"
namespace ash {
class NetworkState;
class NetworkStateHandler;
} // namespace ash
namespace policy {
// This class observes the device setting |DeviceHostname|, and calls
// NetworkStateHandler::SetHostname() appropriately based on the value of that
// setting.
class DeviceNamePolicyHandlerImpl : public DeviceNamePolicyHandler,
public ash::NetworkStateHandlerObserver {
public:
explicit DeviceNamePolicyHandlerImpl(ash::CrosSettings* cros_settings);
DeviceNamePolicyHandlerImpl(const DeviceNamePolicyHandlerImpl&) = delete;
DeviceNamePolicyHandlerImpl& operator=(const DeviceNamePolicyHandlerImpl&) =
delete;
~DeviceNamePolicyHandlerImpl() override;
// DeviceNamePolicyHandler:
DeviceNamePolicy GetDeviceNamePolicy() const override;
std::optional<std::string> GetHostnameChosenByAdministrator() const override;
private:
friend class DeviceNamePolicyHandlerImplTest;
DeviceNamePolicyHandlerImpl(
ash::CrosSettings* cros_settings,
ash::system::StatisticsProvider* statistics_provider,
ash::NetworkStateHandler* handler);
// NetworkStateHandlerObserver overrides
void DefaultNetworkChanged(const ash::NetworkState* network) override;
void OnShuttingDown() override;
void OnDeviceHostnamePropertyChanged();
void OnDeviceHostnamePropertyChangedAndMachineStatisticsLoaded();
// Returns the device name policy to be used. If kPolicyHostnameChosenByAdmin
// is returned, |hostname_template_out| is set to the template chosen by the
// administrator; otherwise, |hostname_template_out| is left unchanged.
DeviceNamePolicyHandler::DeviceNamePolicy ComputePolicy(
std::string* hostname_template_out);
// Generates the hostname according to the template chosen by the
// administrator.
std::string GenerateHostname(const std::string& hostname_template) const;
// Sets new device name and policy if different from the current device name
// and/or policy.
void SetDeviceNamePolicy(DeviceNamePolicy policy,
const std::string& new_hostname);
raw_ptr<ash::CrosSettings> cros_settings_;
raw_ptr<ash::system::StatisticsProvider> statistics_provider_;
raw_ptr<ash::NetworkStateHandler> handler_;
base::ScopedObservation<ash::NetworkStateHandler,
ash::NetworkStateHandlerObserver>
network_state_handler_observer_{this};
DeviceNamePolicy device_name_policy_;
base::CallbackListSubscription template_policy_subscription_;
base::CallbackListSubscription configurable_policy_subscription_;
std::string hostname_;
base::WeakPtrFactory<DeviceNamePolicyHandlerImpl> weak_factory_{this};
};
std::ostream& operator<<(
std::ostream& stream,
const DeviceNamePolicyHandlerImpl::DeviceNamePolicy& state);
} // namespace policy
#endif // CHROME_BROWSER_ASH_POLICY_HANDLERS_DEVICE_NAME_POLICY_HANDLER_IMPL_H_
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