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// Copyright (c) 2012 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_local_account_policy_provider.h"
#include "base/bind.h"
#include "base/values.h"
#include "chrome/browser/chromeos/policy/device_local_account.h"
#include "chrome/browser/chromeos/policy/device_local_account_external_data_manager.h"
#include "chromeos/dbus/power_policy_controller.h"
#include "components/policy/core/common/cloud/cloud_policy_core.h"
#include "components/policy/core/common/cloud/cloud_policy_service.h"
#include "components/policy/core/common/cloud/component_cloud_policy_service.h"
#include "components/policy/core/common/policy_bundle.h"
#include "components/policy/core/common/policy_map.h"
#include "components/policy/core/common/policy_namespace.h"
#include "policy/policy_constants.h"
namespace policy {
DeviceLocalAccountPolicyProvider::DeviceLocalAccountPolicyProvider(
const std::string& user_id,
DeviceLocalAccountPolicyService* service,
scoped_ptr<PolicyMap> chrome_policy_overrides)
: user_id_(user_id),
service_(service),
chrome_policy_overrides_(chrome_policy_overrides.Pass()),
store_initialized_(false),
waiting_for_policy_refresh_(false),
weak_factory_(this) {
service_->AddObserver(this);
UpdateFromBroker();
}
DeviceLocalAccountPolicyProvider::~DeviceLocalAccountPolicyProvider() {
service_->RemoveObserver(this);
}
// static
scoped_ptr<DeviceLocalAccountPolicyProvider>
DeviceLocalAccountPolicyProvider::Create(
const std::string& user_id,
DeviceLocalAccountPolicyService* device_local_account_policy_service) {
DeviceLocalAccount::Type type;
if (!device_local_account_policy_service ||
!IsDeviceLocalAccountUser(user_id, &type)) {
return scoped_ptr<DeviceLocalAccountPolicyProvider>();
}
scoped_ptr<PolicyMap> chrome_policy_overrides;
if (type == DeviceLocalAccount::TYPE_PUBLIC_SESSION) {
chrome_policy_overrides.reset(new PolicyMap());
// Exit the session when the lid is closed. The default behavior is to
// suspend while leaving the session running, which is not desirable for
// public sessions.
chrome_policy_overrides->Set(
key::kLidCloseAction,
POLICY_LEVEL_MANDATORY,
POLICY_SCOPE_MACHINE,
new base::FundamentalValue(
chromeos::PowerPolicyController::ACTION_STOP_SESSION),
NULL);
// Force the |ShelfAutoHideBehavior| policy to |Never|, ensuring that the
// ash shelf does not auto-hide.
chrome_policy_overrides->Set(
key::kShelfAutoHideBehavior,
POLICY_LEVEL_MANDATORY,
POLICY_SCOPE_MACHINE,
new base::StringValue("Never"),
NULL);
// Force the |ShowLogoutButtonInTray| policy to |true|, ensuring that a big,
// red logout button is shown in the ash system tray.
chrome_policy_overrides->Set(
key::kShowLogoutButtonInTray,
POLICY_LEVEL_MANDATORY,
POLICY_SCOPE_MACHINE,
new base::FundamentalValue(true),
NULL);
// Force the |FullscreenAllowed| policy to |false|, ensuring that the ash
// shelf cannot be hidden by entering fullscreen mode.
chrome_policy_overrides->Set(
key::kFullscreenAllowed,
POLICY_LEVEL_MANDATORY,
POLICY_SCOPE_MACHINE,
new base::FundamentalValue(false),
NULL);
}
scoped_ptr<DeviceLocalAccountPolicyProvider> provider(
new DeviceLocalAccountPolicyProvider(user_id,
device_local_account_policy_service,
chrome_policy_overrides.Pass()));
return provider.Pass();
}
bool DeviceLocalAccountPolicyProvider::IsInitializationComplete(
PolicyDomain domain) const {
if (domain == POLICY_DOMAIN_CHROME)
return store_initialized_;
if (ComponentCloudPolicyService::SupportsDomain(domain) &&
GetBroker() && GetBroker()->component_policy_service()) {
return GetBroker()->component_policy_service()->is_initialized();
}
return true;
}
void DeviceLocalAccountPolicyProvider::RefreshPolicies() {
DeviceLocalAccountPolicyBroker* broker = GetBroker();
if (broker && broker->core()->service()) {
waiting_for_policy_refresh_ = true;
broker->core()->service()->RefreshPolicy(
base::Bind(&DeviceLocalAccountPolicyProvider::ReportPolicyRefresh,
weak_factory_.GetWeakPtr()));
} else {
UpdateFromBroker();
}
}
void DeviceLocalAccountPolicyProvider::OnPolicyUpdated(
const std::string& user_id) {
if (user_id == user_id_)
UpdateFromBroker();
}
void DeviceLocalAccountPolicyProvider::OnDeviceLocalAccountsChanged() {
UpdateFromBroker();
}
DeviceLocalAccountPolicyBroker* DeviceLocalAccountPolicyProvider::GetBroker()
const {
return service_->GetBrokerForUser(user_id_);
}
void DeviceLocalAccountPolicyProvider::ReportPolicyRefresh(bool success) {
waiting_for_policy_refresh_ = false;
UpdateFromBroker();
}
void DeviceLocalAccountPolicyProvider::UpdateFromBroker() {
DeviceLocalAccountPolicyBroker* broker = GetBroker();
scoped_ptr<PolicyBundle> bundle(new PolicyBundle());
if (broker) {
store_initialized_ |= broker->core()->store()->is_initialized();
if (!waiting_for_policy_refresh_) {
// Copy policy from the broker.
bundle->Get(PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()))
.CopyFrom(broker->core()->store()->policy_map());
external_data_manager_ = broker->external_data_manager();
if (broker->component_policy_service())
bundle->MergeFrom(broker->component_policy_service()->policy());
} else {
// Wait for the refresh to finish.
return;
}
} else {
// Keep existing policy, but do send an update.
waiting_for_policy_refresh_ = false;
weak_factory_.InvalidateWeakPtrs();
bundle->CopyFrom(policies());
}
// Apply overrides.
if (chrome_policy_overrides_) {
PolicyMap& chrome_policy =
bundle->Get(PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()));
for (PolicyMap::const_iterator it(chrome_policy_overrides_->begin());
it != chrome_policy_overrides_->end();
++it) {
const PolicyMap::Entry& entry = it->second;
chrome_policy.Set(
it->first, entry.level, entry.scope, entry.value->DeepCopy(), NULL);
}
}
UpdatePolicy(bundle.Pass());
}
} // namespace policy
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