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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/device_sync/device_sync_client_factory.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/task/single_thread_task_runner.h"
#include "base/timer/timer.h"
#include "chrome/browser/ash/attestation/soft_bind_attestation_flow_impl.h"
#include "chrome/browser/ash/cryptauth/client_app_metadata_provider_service.h"
#include "chrome/browser/ash/cryptauth/client_app_metadata_provider_service_factory.h"
#include "chrome/browser/ash/profiles/profile_helper.h"
#include "chrome/browser/gcm/gcm_profile_service_factory.h"
#include "chrome/browser/gcm/instance_id/instance_id_profile_service_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/signin/identity_manager_factory.h"
#include "chromeos/ash/components/multidevice/stub_multidevice_util.h"
#include "chromeos/ash/services/device_sync/device_sync_impl.h"
#include "chromeos/ash/services/device_sync/public/cpp/device_sync_client.h"
#include "chromeos/ash/services/device_sync/public/cpp/device_sync_client_impl.h"
#include "chromeos/ash/services/device_sync/stub_device_sync.h"
#include "chromeos/ash/services/multidevice_setup/public/cpp/prefs.h"
#include "components/account_id/account_id.h"
#include "components/gcm_driver/gcm_profile_service.h"
#include "components/gcm_driver/instance_id/instance_id_profile_service.h"
#include "components/keyed_service/core/keyed_service.h"
#include "components/prefs/pref_service.h"
#include "components/user_manager/user.h"
#include "services/network/public/cpp/shared_url_loader_factory.h"
namespace ash {
namespace device_sync {
namespace {
// CryptAuth enrollment is allowed only if at least one multi-device feature is
// enabled. This ensures that we do not unnecessarily register devices on the
// CryptAuth back-end when the registration would never actually be used.
bool IsEnrollmentAllowedByPolicy(content::BrowserContext* context) {
return multidevice_setup::AreAnyMultiDeviceFeaturesAllowed(
Profile::FromBrowserContext(context)->GetPrefs());
}
} // namespace
// Class that wraps DeviceSyncClient in a KeyedService.
class DeviceSyncClientHolder : public KeyedService {
public:
explicit DeviceSyncClientHolder(content::BrowserContext* context)
: soft_bind_attestation_flow_(
std::make_unique<attestation::SoftBindAttestationFlowImpl>()),
device_sync_(CreateDeviceSyncImplForProfile(
Profile::FromBrowserContext(context))),
device_sync_client_(DeviceSyncClientImpl::Factory::Create()) {
// Connect the client's mojo remote to the implementation.
device_sync_->BindReceiver(device_sync_client_->GetDeviceSyncRemote()
->BindNewPipeAndPassReceiver());
// Finish client initialization.
device_sync_client_->Initialize(
base::SingleThreadTaskRunner::GetCurrentDefault());
}
DeviceSyncClientHolder(const DeviceSyncClientHolder&) = delete;
DeviceSyncClientHolder& operator=(const DeviceSyncClientHolder&) = delete;
DeviceSyncClient* device_sync_client() { return device_sync_client_.get(); }
private:
// KeyedService:
void Shutdown() override {
device_sync_client_.reset();
device_sync_->CloseAllReceivers();
device_sync_.reset();
soft_bind_attestation_flow_.reset();
}
std::unique_ptr<DeviceSyncBase> CreateDeviceSyncImplForProfile(
Profile* profile) {
return DeviceSyncImpl::Factory::Create(
IdentityManagerFactory::GetForProfile(profile),
gcm::GCMProfileServiceFactory::GetForProfile(profile)->driver(),
instance_id::InstanceIDProfileServiceFactory::GetForProfile(profile)
->driver(),
profile->GetPrefs(),
ClientAppMetadataProviderServiceFactory::GetForProfile(profile),
profile->GetURLLoaderFactory(), std::make_unique<base::OneShotTimer>(),
base::BindRepeating(&DeviceSyncClientHolder::GetAttestationCertificates,
base::Unretained(this), profile));
}
void GetAttestationCertificates(
Profile* profile,
attestation::SoftBindAttestationFlow::Callback notify_callback,
const std::string& user_key) {
const user_manager::User* user =
ProfileHelper::Get()->GetUserByProfile(profile);
soft_bind_attestation_flow_->GetCertificate(
std::move(notify_callback),
user ? user->GetAccountId() : EmptyAccountId(), user_key);
}
std::unique_ptr<attestation::SoftBindAttestationFlowImpl>
soft_bind_attestation_flow_;
std::unique_ptr<DeviceSyncBase> device_sync_;
std::unique_ptr<DeviceSyncClient> device_sync_client_;
};
DeviceSyncClientFactory::DeviceSyncClientFactory()
: ProfileKeyedServiceFactory(
"DeviceSyncClient",
ProfileSelections::Builder()
.WithRegular(ProfileSelection::kOriginalOnly)
// TODO(crbug.com/40257657): Check if this service is needed in
// Guest mode.
.WithGuest(ProfileSelection::kOriginalOnly)
// TODO(crbug.com/41488885): Check if this service is needed for
// Ash Internals.
.WithAshInternals(ProfileSelection::kOriginalOnly)
.Build()) {
DependsOn(ClientAppMetadataProviderServiceFactory::GetInstance());
DependsOn(IdentityManagerFactory::GetInstance());
DependsOn(instance_id::InstanceIDProfileServiceFactory::GetInstance());
// If ShouldUseMultideviceStubs() is true, set a stub factory to facilitate
// fake devices for testing in the Linux Chrome OS build. Note that this is
// not done when a custom factory has already been set.
if (multidevice::ShouldUseMultideviceStubs() &&
!DeviceSyncImpl::Factory::IsCustomFactorySet()) {
SetStubDeviceSyncFactory();
}
}
DeviceSyncClientFactory::~DeviceSyncClientFactory() = default;
// static
DeviceSyncClient* DeviceSyncClientFactory::GetForProfile(Profile* profile) {
DeviceSyncClientHolder* holder = static_cast<DeviceSyncClientHolder*>(
GetInstance()->GetServiceForBrowserContext(profile, true));
return holder ? holder->device_sync_client() : nullptr;
}
// static
DeviceSyncClientFactory* DeviceSyncClientFactory::GetInstance() {
static base::NoDestructor<DeviceSyncClientFactory> instance;
return instance.get();
}
std::unique_ptr<KeyedService>
DeviceSyncClientFactory::BuildServiceInstanceForBrowserContext(
content::BrowserContext* context) const {
// TODO(crbug.com/848347): Check prohibited by policy in services that depend
// on this Factory, not here.
if (IsEnrollmentAllowedByPolicy(context))
return std::make_unique<DeviceSyncClientHolder>(context);
return nullptr;
}
bool DeviceSyncClientFactory::ServiceIsNULLWhileTesting() const {
return true;
}
} // namespace device_sync
} // namespace ash
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