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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.
#include "chrome/browser/chromeos/policy/device_cloud_policy_initializer.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/logging.h"
#include "base/prefs/pref_service.h"
#include "base/sequenced_task_runner.h"
#include "base/values.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos.h"
#include "chrome/browser/chromeos/policy/device_cloud_policy_store_chromeos.h"
#include "chrome/browser/chromeos/policy/device_status_collector.h"
#include "chrome/browser/chromeos/policy/enrollment_handler_chromeos.h"
#include "chrome/browser/chromeos/policy/enterprise_install_attributes.h"
#include "chrome/browser/chromeos/policy/server_backed_device_state.h"
#include "chrome/common/chrome_content_client.h"
#include "chrome/common/pref_names.h"
#include "chromeos/system/statistics_provider.h"
#include "components/policy/core/common/cloud/cloud_policy_constants.h"
#include "components/policy/core/common/cloud/cloud_policy_core.h"
#include "components/policy/core/common/cloud/system_policy_request_context.h"
#include "net/url_request/url_request_context_getter.h"
#include "policy/proto/device_management_backend.pb.h"
namespace em = enterprise_management;
namespace policy {
namespace {
// Gets a machine flag from StatisticsProvider, returning the given
// |default_value| if not present.
bool GetMachineFlag(const std::string& key, bool default_value) {
bool value = default_value;
chromeos::system::StatisticsProvider* provider =
chromeos::system::StatisticsProvider::GetInstance();
if (!provider->GetMachineFlag(key, &value))
return default_value;
return value;
}
} // namespace
DeviceCloudPolicyInitializer::DeviceCloudPolicyInitializer(
PrefService* local_state,
DeviceManagementService* enterprise_service,
DeviceManagementService* consumer_service,
const scoped_refptr<base::SequencedTaskRunner>& background_task_runner,
EnterpriseInstallAttributes* install_attributes,
ServerBackedStateKeysBroker* state_keys_broker,
DeviceCloudPolicyStoreChromeOS* device_store,
DeviceCloudPolicyManagerChromeOS* manager,
const base::Closure& on_connected_callback)
: local_state_(local_state),
enterprise_service_(enterprise_service),
consumer_service_(consumer_service),
background_task_runner_(background_task_runner),
install_attributes_(install_attributes),
state_keys_broker_(state_keys_broker),
device_store_(device_store),
manager_(manager),
on_connected_callback_(on_connected_callback) {
device_store_->AddObserver(this);
state_keys_update_subscription_ = state_keys_broker_->RegisterUpdateCallback(
base::Bind(&DeviceCloudPolicyInitializer::TryToCreateClient,
base::Unretained(this)));
device_status_provider_.reset(
new DeviceStatusCollector(
local_state_,
chromeos::system::StatisticsProvider::GetInstance(),
NULL));
TryToCreateClient();
}
DeviceCloudPolicyInitializer::~DeviceCloudPolicyInitializer() {
}
void DeviceCloudPolicyInitializer::Shutdown() {
device_store_->RemoveObserver(this);
device_status_provider_.reset();
enrollment_handler_.reset();
state_keys_update_subscription_.reset();
}
void DeviceCloudPolicyInitializer::StartEnrollment(
DeviceManagementService* device_management_service,
const std::string& auth_token,
bool is_auto_enrollment,
const AllowedDeviceModes& allowed_device_modes,
const EnrollmentCallback& enrollment_callback) {
CHECK(!enrollment_handler_);
manager_->core()->Disconnect();
enrollment_handler_.reset(new EnrollmentHandlerChromeOS(
device_store_,
install_attributes_,
state_keys_broker_,
CreateClient(device_management_service),
background_task_runner_,
auth_token,
install_attributes_->GetDeviceId(),
is_auto_enrollment,
manager_->GetDeviceRequisition(),
allowed_device_modes,
base::Bind(&DeviceCloudPolicyInitializer::EnrollmentCompleted,
base::Unretained(this),
enrollment_callback)));
enrollment_handler_->StartEnrollment();
}
bool DeviceCloudPolicyInitializer::ShouldAutoStartEnrollment() const {
std::string restore_mode = GetRestoreMode();
if (restore_mode == kDeviceStateRestoreModeReEnrollmentRequested ||
restore_mode == kDeviceStateRestoreModeReEnrollmentEnforced) {
return true;
}
if (local_state_->HasPrefPath(prefs::kDeviceEnrollmentAutoStart))
return local_state_->GetBoolean(prefs::kDeviceEnrollmentAutoStart);
return GetMachineFlag(chromeos::system::kOemIsEnterpriseManagedKey, false);
}
bool DeviceCloudPolicyInitializer::CanExitEnrollment() const {
if (GetRestoreMode() == kDeviceStateRestoreModeReEnrollmentEnforced)
return false;
if (local_state_->HasPrefPath(prefs::kDeviceEnrollmentCanExit))
return local_state_->GetBoolean(prefs::kDeviceEnrollmentCanExit);
return GetMachineFlag(chromeos::system::kOemCanExitEnterpriseEnrollmentKey,
true);
}
std::string
DeviceCloudPolicyInitializer::GetForcedEnrollmentDomain() const {
const base::DictionaryValue* device_state_dict =
local_state_->GetDictionary(prefs::kServerBackedDeviceState);
std::string management_domain;
device_state_dict->GetString(kDeviceStateManagementDomain,
&management_domain);
return management_domain;
}
void DeviceCloudPolicyInitializer::OnStoreLoaded(CloudPolicyStore* store) {
TryToCreateClient();
}
void DeviceCloudPolicyInitializer::OnStoreError(CloudPolicyStore* store) {
// Do nothing.
}
void DeviceCloudPolicyInitializer::EnrollmentCompleted(
const EnrollmentCallback& enrollment_callback,
EnrollmentStatus status) {
scoped_ptr<CloudPolicyClient> client = enrollment_handler_->ReleaseClient();
enrollment_handler_.reset();
if (status.status() == EnrollmentStatus::STATUS_SUCCESS) {
StartConnection(client.Pass());
} else {
// Some attempts to create a client may be blocked because the enrollment
// was in progress. We give it a try again.
TryToCreateClient();
}
if (!enrollment_callback.is_null())
enrollment_callback.Run(status);
}
scoped_ptr<CloudPolicyClient> DeviceCloudPolicyInitializer::CreateClient(
DeviceManagementService* device_management_service) {
scoped_refptr<net::URLRequestContextGetter> request_context =
new SystemPolicyRequestContext(
g_browser_process->system_request_context(), GetUserAgent());
return make_scoped_ptr(
new CloudPolicyClient(DeviceCloudPolicyManagerChromeOS::GetMachineID(),
DeviceCloudPolicyManagerChromeOS::GetMachineModel(),
kPolicyVerificationKeyHash,
USER_AFFILIATION_NONE,
device_status_provider_.get(),
device_management_service,
request_context));
}
void DeviceCloudPolicyInitializer::TryToCreateClient() {
if (device_store_->is_initialized() &&
device_store_->has_policy() &&
!state_keys_broker_->pending() &&
!enrollment_handler_) {
DeviceManagementService* service;
if (device_store_->policy()->management_mode() ==
em::PolicyData::CONSUMER_MANAGED) {
service = consumer_service_;
} else {
service = enterprise_service_;
}
StartConnection(CreateClient(service));
}
}
void DeviceCloudPolicyInitializer::StartConnection(
scoped_ptr<CloudPolicyClient> client) {
if (!manager_->core()->service())
manager_->StartConnection(client.Pass(), device_status_provider_.Pass());
if (!on_connected_callback_.is_null()) {
on_connected_callback_.Run();
on_connected_callback_.Reset();
}
}
std::string DeviceCloudPolicyInitializer::GetRestoreMode() const {
const base::DictionaryValue* device_state_dict =
local_state_->GetDictionary(prefs::kServerBackedDeviceState);
std::string restore_mode;
device_state_dict->GetString(kDeviceStateRestoreMode, &restore_mode);
return restore_mode;
}
} // namespace policy
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