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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/device_cloud_policy_manager_chromeos.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "chrome/browser/chromeos/system/statistics_provider.h"
#include "chrome/browser/policy/cloud_policy_constants.h"
#include "chrome/browser/policy/cloud_policy_store.h"
#include "chrome/browser/policy/device_cloud_policy_store_chromeos.h"
#include "chrome/browser/policy/device_management_service.h"
#include "chrome/browser/policy/enrollment_handler_chromeos.h"
#include "chrome/browser/policy/enterprise_install_attributes.h"
#include "chrome/browser/policy/proto/device_management_backend.pb.h"
#include "chrome/common/pref_names.h"
namespace em = enterprise_management;
namespace policy {
namespace {
// MachineInfo key names.
const char kMachineInfoSystemHwqual[] = "hardware_class";
// These are the machine serial number keys that we check in order until we
// find a non-empty serial number. The VPD spec says the serial number should be
// in the "serial_number" key for v2+ VPDs. However, legacy devices used a
// different keys to report their serial number, which we fall back to if
// "serial_number" is not present.
//
// Product_S/N is still special-cased due to inconsistencies with serial
// numbers on Lumpy devices: On these devices, serial_number is identical to
// Product_S/N with an appended checksum. Unfortunately, the sticker on the
// packaging doesn't include that checksum either (the sticker on the device
// does though!). The former sticker is the source of the serial number used by
// device management service, so we prefer Product_S/N over serial number to
// match the server.
//
// TODO(mnissler): Move serial_number back to the top once the server side uses
// the correct serial number.
const char* kMachineInfoSerialNumberKeys[] = {
"Product_S/N", // Lumpy/Alex devices
"serial_number", // VPD v2+ devices
"Product_SN", // Mario
"sn", // old ZGB devices (more recent ones use serial_number)
};
} // namespace
DeviceCloudPolicyManagerChromeOS::DeviceCloudPolicyManagerChromeOS(
scoped_ptr<DeviceCloudPolicyStoreChromeOS> store,
EnterpriseInstallAttributes* install_attributes)
: CloudPolicyManager(
PolicyNamespaceKey(dm_protocol::kChromeDevicePolicyType,
std::string()),
store.get()),
device_store_(store.Pass()),
install_attributes_(install_attributes),
device_management_service_(NULL),
local_state_(NULL) {}
DeviceCloudPolicyManagerChromeOS::~DeviceCloudPolicyManagerChromeOS() {}
void DeviceCloudPolicyManagerChromeOS::Connect(
PrefService* local_state,
DeviceManagementService* device_management_service,
scoped_ptr<CloudPolicyClient::StatusProvider> device_status_provider) {
CHECK(!device_management_service_);
CHECK(device_management_service);
CHECK(local_state);
local_state_ = local_state;
device_management_service_ = device_management_service;
device_status_provider_ = device_status_provider.Pass();
StartIfManaged();
}
void DeviceCloudPolicyManagerChromeOS::StartEnrollment(
const std::string& auth_token,
bool is_auto_enrollment,
const AllowedDeviceModes& allowed_device_modes,
const EnrollmentCallback& callback) {
CHECK(device_management_service_);
core()->Disconnect();
enrollment_handler_.reset(
new EnrollmentHandlerChromeOS(
device_store_.get(), install_attributes_, CreateClient(), auth_token,
install_attributes_->GetDeviceId(), is_auto_enrollment,
allowed_device_modes,
base::Bind(&DeviceCloudPolicyManagerChromeOS::EnrollmentCompleted,
base::Unretained(this), callback)));
enrollment_handler_->StartEnrollment();
}
void DeviceCloudPolicyManagerChromeOS::CancelEnrollment() {
if (enrollment_handler_.get()) {
enrollment_handler_.reset();
StartIfManaged();
}
}
void DeviceCloudPolicyManagerChromeOS::OnStoreLoaded(CloudPolicyStore* store) {
CloudPolicyManager::OnStoreLoaded(store);
if (!enrollment_handler_.get())
StartIfManaged();
}
// static
std::string DeviceCloudPolicyManagerChromeOS::GetMachineID() {
std::string machine_id;
chromeos::system::StatisticsProvider* provider =
chromeos::system::StatisticsProvider::GetInstance();
for (size_t i = 0; i < arraysize(kMachineInfoSerialNumberKeys); i++) {
if (provider->GetMachineStatistic(kMachineInfoSerialNumberKeys[i],
&machine_id) &&
!machine_id.empty()) {
break;
}
}
if (machine_id.empty())
LOG(WARNING) << "Failed to get machine id.";
return machine_id;
}
// static
std::string DeviceCloudPolicyManagerChromeOS::GetMachineModel() {
std::string machine_model;
chromeos::system::StatisticsProvider* provider =
chromeos::system::StatisticsProvider::GetInstance();
if (!provider->GetMachineStatistic(kMachineInfoSystemHwqual, &machine_model))
LOG(WARNING) << "Failed to get machine model.";
return machine_model;
}
scoped_ptr<CloudPolicyClient> DeviceCloudPolicyManagerChromeOS::CreateClient() {
return make_scoped_ptr(
new CloudPolicyClient(GetMachineID(), GetMachineModel(),
USER_AFFILIATION_NONE,
device_status_provider_.get(),
device_management_service_));
}
void DeviceCloudPolicyManagerChromeOS::EnrollmentCompleted(
const EnrollmentCallback& callback,
EnrollmentStatus status) {
if (status.status() == EnrollmentStatus::STATUS_SUCCESS) {
core()->Connect(enrollment_handler_->ReleaseClient());
core()->StartRefreshScheduler();
core()->TrackRefreshDelayPref(local_state_,
prefs::kDevicePolicyRefreshRate);
} else {
StartIfManaged();
}
enrollment_handler_.reset();
if (!callback.is_null())
callback.Run(status);
}
void DeviceCloudPolicyManagerChromeOS::StartIfManaged() {
if (device_management_service_ &&
local_state_ &&
store()->is_initialized() &&
store()->is_managed() &&
!service()) {
core()->Connect(CreateClient());
core()->StartRefreshScheduler();
core()->TrackRefreshDelayPref(local_state_,
prefs::kDevicePolicyRefreshRate);
}
}
} // namespace policy
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