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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/policy/cloud_policy_subsystem.h"
#include <algorithm>
#include <string>
#include "base/command_line.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/policy/cloud_policy_cache_base.h"
#include "chrome/browser/policy/cloud_policy_controller.h"
#include "chrome/browser/policy/cloud_policy_data_store.h"
#include "chrome/browser/policy/device_management_service.h"
#include "chrome/browser/policy/device_token_fetcher.h"
#include "chrome/browser/policy/policy_notifier.h"
#include "chrome/browser/prefs/pref_service.h"
#include "chrome/common/chrome_notification_types.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pref_names.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_source.h"
namespace {
// Default refresh rate.
const int64 kDefaultPolicyRefreshRateMs = 3 * 60 * 60 * 1000; // 3 hours.
// Refresh rate sanity interval bounds.
const int64 kPolicyRefreshRateMinMs = 30 * 60 * 1000; // 30 minutes
const int64 kPolicyRefreshRateMaxMs = 24 * 60 * 60 * 1000; // 1 day
} // namespace
namespace policy {
CloudPolicySubsystem::ObserverRegistrar::ObserverRegistrar(
CloudPolicySubsystem* cloud_policy_subsystem,
CloudPolicySubsystem::Observer* observer)
: observer_(observer) {
policy_notifier_ = cloud_policy_subsystem->notifier();
policy_notifier_->AddObserver(observer);
}
CloudPolicySubsystem::ObserverRegistrar::~ObserverRegistrar() {
if (policy_notifier_)
policy_notifier_->RemoveObserver(observer_);
}
CloudPolicySubsystem::CloudPolicySubsystem(
CloudPolicyDataStore* data_store,
CloudPolicyCacheBase* policy_cache,
const std::string& device_management_url) {
Initialize(data_store, policy_cache, device_management_url);
}
CloudPolicySubsystem::~CloudPolicySubsystem() {
cloud_policy_controller_.reset();
device_token_fetcher_.reset();
cloud_policy_cache_.reset();
device_management_service_.reset();
net::NetworkChangeNotifier::RemoveIPAddressObserver(this);
}
void CloudPolicySubsystem::OnIPAddressChanged() {
if (state() == CloudPolicySubsystem::NETWORK_ERROR &&
cloud_policy_controller_.get()) {
cloud_policy_controller_->Retry();
}
}
void CloudPolicySubsystem::Initialize(
CloudPolicyDataStore* data_store,
CloudPolicyCacheBase* policy_cache,
const std::string& device_management_url) {
device_management_url_ = device_management_url;
data_store_ = data_store;
net::NetworkChangeNotifier::AddIPAddressObserver(this);
notifier_.reset(new PolicyNotifier());
if (!device_management_url_.empty()) {
device_management_service_.reset(new DeviceManagementService(
device_management_url));
cloud_policy_cache_.reset(policy_cache);
cloud_policy_cache_->set_policy_notifier(notifier_.get());
cloud_policy_cache_->Load();
CreateDeviceTokenFetcher();
}
}
void CloudPolicySubsystem::CompleteInitialization(
const char* refresh_pref_name,
int64 delay_milliseconds) {
if (!device_management_url_.empty()) {
DCHECK(device_management_service_.get());
DCHECK(cloud_policy_cache_.get());
DCHECK(device_token_fetcher_.get());
refresh_pref_name_ = refresh_pref_name;
CreateCloudPolicyController();
device_management_service_->ScheduleInitialization(delay_milliseconds);
PrefService* local_state = g_browser_process->local_state();
DCHECK(pref_change_registrar_.IsEmpty());
pref_change_registrar_.Init(local_state);
pref_change_registrar_.Add(refresh_pref_name_, this);
UpdatePolicyRefreshRate(local_state->GetInteger(refresh_pref_name_));
}
}
void CloudPolicySubsystem::Shutdown() {
if (device_management_service_.get())
device_management_service_->Shutdown();
cloud_policy_controller_.reset();
cloud_policy_cache_.reset();
pref_change_registrar_.RemoveAll();
}
CloudPolicySubsystem::PolicySubsystemState CloudPolicySubsystem::state() {
return notifier_->state();
}
CloudPolicySubsystem::ErrorDetails CloudPolicySubsystem::error_details() {
return notifier_->error_details();
}
void CloudPolicySubsystem::Reset() {
data_store_->Reset();
cloud_policy_cache_->Reset();
cloud_policy_controller_->Reset();
device_token_fetcher_->Reset();
}
void CloudPolicySubsystem::RefreshPolicies(bool wait_for_auth_token) {
data_store_->set_policy_fetching_enabled(true);
if (cloud_policy_controller_.get())
cloud_policy_controller_->RefreshPolicies(wait_for_auth_token);
// Make sure the |device_management_service_| is rolling.
device_management_service_->ScheduleInitialization(0);
}
// static
void CloudPolicySubsystem::RegisterPrefs(PrefService* pref_service) {
pref_service->RegisterIntegerPref(prefs::kDevicePolicyRefreshRate,
kDefaultPolicyRefreshRateMs,
PrefService::UNSYNCABLE_PREF);
pref_service->RegisterIntegerPref(prefs::kUserPolicyRefreshRate,
kDefaultPolicyRefreshRateMs,
PrefService::UNSYNCABLE_PREF);
}
void CloudPolicySubsystem::UpdatePolicyRefreshRate(int64 refresh_rate) {
if (cloud_policy_controller_.get()) {
// Clamp to sane values.
refresh_rate = std::max(kPolicyRefreshRateMinMs, refresh_rate);
refresh_rate = std::min(kPolicyRefreshRateMaxMs, refresh_rate);
cloud_policy_controller_->SetRefreshRate(refresh_rate);
}
}
void CloudPolicySubsystem::OnPreferenceChanged(PrefServiceBase* service,
const std::string& pref_name) {
DCHECK_EQ(pref_name, refresh_pref_name_);
PrefService* local_state = g_browser_process->local_state();
DCHECK_EQ(service, local_state);
UpdatePolicyRefreshRate(local_state->GetInteger(refresh_pref_name_));
}
void CloudPolicySubsystem::ScheduleServiceInitialization(
int64 delay_milliseconds) {
if (device_management_service_.get())
device_management_service_->ScheduleInitialization(delay_milliseconds);
}
void CloudPolicySubsystem::CreateDeviceTokenFetcher() {
device_token_fetcher_.reset(
new DeviceTokenFetcher(device_management_service_.get(),
cloud_policy_cache_.get(),
data_store_,
notifier_.get()));
}
void CloudPolicySubsystem::CreateCloudPolicyController() {
DCHECK(!cloud_policy_controller_.get());
cloud_policy_controller_.reset(
new CloudPolicyController(device_management_service_.get(),
cloud_policy_cache_.get(),
device_token_fetcher_.get(),
data_store_,
notifier_.get()));
}
CloudPolicyCacheBase* CloudPolicySubsystem::GetCloudPolicyCacheBase() const {
return cloud_policy_cache_.get();
}
CloudPolicySubsystem::CloudPolicySubsystem()
: refresh_pref_name_(NULL),
data_store_(NULL) {
}
} // namespace policy
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