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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 CHROME_BROWSER_CHROMEOS_OWNERSHIP_OWNER_SETTINGS_SERVICE_CHROMEOS_H_
#define CHROME_BROWSER_CHROMEOS_OWNERSHIP_OWNER_SETTINGS_SERVICE_CHROMEOS_H_
#include <string>
#include <vector>
#include "base/callback_forward.h"
#include "base/containers/scoped_ptr_hash_map.h"
#include "base/macros.h"
#include "base/values.h"
#include "chrome/browser/chromeos/policy/proto/chrome_device_policy.pb.h"
#include "chrome/browser/chromeos/settings/device_settings_service.h"
#include "chromeos/dbus/session_manager_client.h"
#include "components/keyed_service/core/keyed_service.h"
#include "components/ownership/owner_key_util.h"
#include "components/ownership/owner_settings_service.h"
#include "components/policy/core/common/cloud/cloud_policy_constants.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
class Profile;
namespace content {
class WebUI;
}
namespace ownership {
class OwnerKeyUtil;
}
namespace chromeos {
class FakeOwnerSettingsService;
// The class is a profile-keyed service which holds public/private
// keypair corresponds to a profile. The keypair is reloaded automatically when
// profile is created and TPM token is ready. Note that the private part of a
// key can be loaded only for the owner.
//
// TODO (ygorshenin@): move write path for device settings here
// (crbug.com/230018).
class OwnerSettingsServiceChromeOS : public ownership::OwnerSettingsService,
public content::NotificationObserver,
public SessionManagerClient::Observer,
public DeviceSettingsService::Observer {
public:
typedef base::Callback<void(bool success)> OnManagementSettingsSetCallback;
struct ManagementSettings {
ManagementSettings();
~ManagementSettings();
policy::ManagementMode management_mode;
std::string request_token;
std::string device_id;
};
~OwnerSettingsServiceChromeOS() override;
static OwnerSettingsServiceChromeOS* FromWebUI(content::WebUI* web_ui);
void OnTPMTokenReady(bool tpm_token_enabled);
bool HasPendingChanges() const;
// ownership::OwnerSettingsService implementation:
bool HandlesSetting(const std::string& setting) override;
bool Set(const std::string& setting, const base::Value& value) override;
bool AppendToList(const std::string& setting,
const base::Value& value) override;
bool RemoveFromList(const std::string& setting,
const base::Value& value) override;
bool CommitTentativeDeviceSettings(
scoped_ptr<enterprise_management::PolicyData> policy) override;
// NotificationObserver implementation:
void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) override;
// SessionManagerClient::Observer:
void OwnerKeySet(bool success) override;
// DeviceSettingsService::Observer:
void OwnershipStatusChanged() override;
void DeviceSettingsUpdated() override;
void OnDeviceSettingsServiceShutdown() override;
// Sets the management related settings.
virtual void SetManagementSettings(
const ManagementSettings& settings,
const OnManagementSettingsSetCallback& callback);
// Checks if the user is the device owner, without the user profile having to
// been initialized. Should be used only if login state is in safe mode.
static void IsOwnerForSafeModeAsync(
const std::string& user_hash,
const scoped_refptr<ownership::OwnerKeyUtil>& owner_key_util,
const IsOwnerCallback& callback);
// Assembles PolicyData based on |settings|, |policy_data|, |user_id| and
// |pending_management_settings|. Applies local-owner policy fixups if needed.
static scoped_ptr<enterprise_management::PolicyData> AssemblePolicy(
const std::string& user_id,
const enterprise_management::PolicyData* policy_data,
bool apply_pending_mangement_settings,
const ManagementSettings& pending_management_settings,
enterprise_management::ChromeDeviceSettingsProto* settings);
// Updates device |settings|.
static void UpdateDeviceSettings(
const std::string& path,
const base::Value& value,
enterprise_management::ChromeDeviceSettingsProto& settings);
protected:
OwnerSettingsServiceChromeOS(
DeviceSettingsService* device_settings_service,
Profile* profile,
const scoped_refptr<ownership::OwnerKeyUtil>& owner_key_util);
private:
friend class OwnerSettingsServiceChromeOSFactory;
// Perform fixups required to ensure sensical local-owner device policy:
// 1) user whitelisting must be explicitly allowed or disallowed, and
// 2) the owner user must be on the whitelist, if it's enforced.
static void FixupLocalOwnerPolicy(
const std::string& user_id,
enterprise_management::ChromeDeviceSettingsProto* settings);
// OwnerSettingsService protected interface overrides:
// Reloads private key from profile's NSS slots, responds via |callback|. On
// success, |private_key| is non-null, but if the private key doesn't exist,
// |private_key->key()| may be null.
void ReloadKeypairImpl(const base::Callback<
void(const scoped_refptr<ownership::PublicKey>& public_key,
const scoped_refptr<ownership::PrivateKey>& private_key)>& callback)
override;
// Possibly notifies DeviceSettingsService that owner's keypair is loaded.
void OnPostKeypairLoadedActions() override;
// Tries to apply recent changes to device settings proto, sign it and store.
void StorePendingChanges();
// Called when current device settings are successfully signed.
// Sends signed settings for storage.
void OnPolicyAssembledAndSigned(
scoped_ptr<enterprise_management::PolicyFetchResponse> policy_response);
// Called by DeviceSettingsService when modified and signed device
// settings are stored.
void OnSignedPolicyStored(bool success);
// Report status to observers and tries to continue storing pending chages to
// device settings.
void ReportStatusAndContinueStoring(bool success);
DeviceSettingsService* device_settings_service_;
// Profile this service instance belongs to.
Profile* profile_;
// User ID this service instance belongs to.
std::string user_id_;
// Whether profile still needs to be initialized.
bool waiting_for_profile_creation_;
// Whether TPM token still needs to be initialized.
bool waiting_for_tpm_token_;
// True if local-owner policy fixups are still pending.
bool has_pending_fixups_;
// A set of pending changes to device settings.
base::ScopedPtrHashMap<std::string, scoped_ptr<base::Value>> pending_changes_;
// True if there're pending changes to management settings.
bool has_pending_management_settings_;
// A set of pending changes to management settings.
ManagementSettings pending_management_settings_;
// A set of callbacks that need to be run after management settings
// are set and policy is stored.
std::vector<OnManagementSettingsSetCallback>
pending_management_settings_callbacks_;
// A protobuf containing pending changes to device settings.
scoped_ptr<enterprise_management::ChromeDeviceSettingsProto>
tentative_settings_;
content::NotificationRegistrar registrar_;
base::WeakPtrFactory<OwnerSettingsServiceChromeOS> weak_factory_;
base::WeakPtrFactory<OwnerSettingsServiceChromeOS> store_settings_factory_;
DISALLOW_COPY_AND_ASSIGN(OwnerSettingsServiceChromeOS);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_OWNERSHIP_OWNER_SETTINGS_SERVICE_CHROMEOS_H_
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