| // Copyright 2013 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 "chromeos/dbus/bluetooth_profile_service_provider.h" |
| |
| #include <string> |
| |
| #include "base/bind.h" |
| #include "base/logging.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/threading/platform_thread.h" |
| #include "chromeos/dbus/dbus_thread_manager.h" |
| #include "chromeos/dbus/fake_bluetooth_profile_service_provider.h" |
| #include "dbus/bus.h" |
| #include "dbus/exported_object.h" |
| #include "dbus/message.h" |
| #include "dbus/object_path.h" |
| #include "third_party/cros_system_api/dbus/service_constants.h" |
| |
| namespace chromeos { |
| |
| // The BluetoothProfileServiceProvider implementation used in production. |
| class BluetoothProfileServiceProviderImpl |
| : public BluetoothProfileServiceProvider { |
| public: |
| BluetoothProfileServiceProviderImpl(dbus::Bus* bus, |
| const dbus::ObjectPath& object_path, |
| Delegate* delegate) |
| : origin_thread_id_(base::PlatformThread::CurrentId()), |
| bus_(bus), |
| delegate_(delegate), |
| object_path_(object_path), |
| weak_ptr_factory_(this) { |
| VLOG(1) << "Creating Bluetooth Profile: " << object_path_.value(); |
| |
| exported_object_ = bus_->GetExportedObject(object_path_); |
| |
| exported_object_->ExportMethod( |
| bluetooth_profile::kBluetoothProfileInterface, |
| bluetooth_profile::kRelease, |
| base::Bind(&BluetoothProfileServiceProviderImpl::Release, |
| weak_ptr_factory_.GetWeakPtr()), |
| base::Bind(&BluetoothProfileServiceProviderImpl::OnExported, |
| weak_ptr_factory_.GetWeakPtr())); |
| |
| exported_object_->ExportMethod( |
| bluetooth_profile::kBluetoothProfileInterface, |
| bluetooth_profile::kNewConnection, |
| base::Bind(&BluetoothProfileServiceProviderImpl::NewConnection, |
| weak_ptr_factory_.GetWeakPtr()), |
| base::Bind(&BluetoothProfileServiceProviderImpl::OnExported, |
| weak_ptr_factory_.GetWeakPtr())); |
| |
| exported_object_->ExportMethod( |
| bluetooth_profile::kBluetoothProfileInterface, |
| bluetooth_profile::kRequestDisconnection, |
| base::Bind(&BluetoothProfileServiceProviderImpl::RequestDisconnection, |
| weak_ptr_factory_.GetWeakPtr()), |
| base::Bind(&BluetoothProfileServiceProviderImpl::OnExported, |
| weak_ptr_factory_.GetWeakPtr())); |
| |
| exported_object_->ExportMethod( |
| bluetooth_profile::kBluetoothProfileInterface, |
| bluetooth_profile::kCancel, |
| base::Bind(&BluetoothProfileServiceProviderImpl::Cancel, |
| weak_ptr_factory_.GetWeakPtr()), |
| base::Bind(&BluetoothProfileServiceProviderImpl::OnExported, |
| weak_ptr_factory_.GetWeakPtr())); |
| } |
| |
| virtual ~BluetoothProfileServiceProviderImpl() { |
| VLOG(1) << "Cleaning up Bluetooth Profile: " << object_path_.value(); |
| |
| // Unregister the object path so we can reuse with a new agent. |
| bus_->UnregisterExportedObject(object_path_); |
| } |
| |
| private: |
| // Returns true if the current thread is on the origin thread. |
| bool OnOriginThread() { |
| return base::PlatformThread::CurrentId() == origin_thread_id_; |
| } |
| |
| // Called by dbus:: when the profile is unregistered from the Bluetooth |
| // daemon, generally by our request. |
| void Release(dbus::MethodCall* method_call, |
| dbus::ExportedObject::ResponseSender response_sender) { |
| DCHECK(OnOriginThread()); |
| DCHECK(delegate_); |
| |
| delegate_->Released(); |
| |
| response_sender.Run(dbus::Response::FromMethodCall(method_call)); |
| } |
| |
| // Called by dbus:: when the Bluetooth daemon establishes a new connection |
| // to the profile. |
| void NewConnection(dbus::MethodCall* method_call, |
| dbus::ExportedObject::ResponseSender response_sender) { |
| DCHECK(OnOriginThread()); |
| DCHECK(delegate_); |
| |
| dbus::MessageReader reader(method_call); |
| dbus::ObjectPath device_path; |
| scoped_ptr<dbus::FileDescriptor> fd(new dbus::FileDescriptor()); |
| dbus::MessageReader array_reader(NULL); |
| if (!reader.PopObjectPath(&device_path) || |
| !reader.PopFileDescriptor(fd.get()) || |
| !reader.PopArray(&array_reader)) { |
| LOG(WARNING) << "NewConnection called with incorrect paramters: " |
| << method_call->ToString(); |
| return; |
| } |
| |
| Delegate::Options options; |
| while (array_reader.HasMoreData()) { |
| dbus::MessageReader dict_entry_reader(NULL); |
| std::string key; |
| if (!array_reader.PopDictEntry(&dict_entry_reader) || |
| !dict_entry_reader.PopString(&key)) { |
| LOG(WARNING) << "NewConnection called with incorrect paramters: " |
| << method_call->ToString(); |
| } else { |
| if (key == bluetooth_profile::kVersionProperty) |
| dict_entry_reader.PopVariantOfUint16(&options.version); |
| else if (key == bluetooth_profile::kFeaturesProperty) |
| dict_entry_reader.PopVariantOfUint16(&options.features); |
| } |
| } |
| |
| Delegate::ConfirmationCallback callback = base::Bind( |
| &BluetoothProfileServiceProviderImpl::OnConfirmation, |
| weak_ptr_factory_.GetWeakPtr(), |
| method_call, |
| response_sender); |
| |
| delegate_->NewConnection(device_path, fd.Pass(), options, callback); |
| } |
| |
| // Called by dbus:: when the Bluetooth daemon is about to disconnect the |
| // profile. |
| void RequestDisconnection( |
| dbus::MethodCall* method_call, |
| dbus::ExportedObject::ResponseSender response_sender) { |
| DCHECK(OnOriginThread()); |
| DCHECK(delegate_); |
| |
| dbus::MessageReader reader(method_call); |
| dbus::ObjectPath device_path; |
| if (!reader.PopObjectPath(&device_path)) { |
| LOG(WARNING) << "RequestDisconnection called with incorrect paramters: " |
| << method_call->ToString(); |
| return; |
| } |
| |
| Delegate::ConfirmationCallback callback = base::Bind( |
| &BluetoothProfileServiceProviderImpl::OnConfirmation, |
| weak_ptr_factory_.GetWeakPtr(), |
| method_call, |
| response_sender); |
| |
| delegate_->RequestDisconnection(device_path, callback); |
| } |
| |
| // Called by dbus:: when the request failed before a reply was returned |
| // from the device. |
| void Cancel(dbus::MethodCall* method_call, |
| dbus::ExportedObject::ResponseSender response_sender) { |
| DCHECK(OnOriginThread()); |
| DCHECK(delegate_); |
| |
| delegate_->Cancel(); |
| |
| response_sender.Run(dbus::Response::FromMethodCall(method_call)); |
| } |
| |
| // Called by dbus:: when a method is exported. |
| void OnExported(const std::string& interface_name, |
| const std::string& method_name, |
| bool success) { |
| LOG_IF(WARNING, !success) << "Failed to export " |
| << interface_name << "." << method_name; |
| } |
| |
| // Called by the Delegate in response to a method requiring confirmation. |
| void OnConfirmation(dbus::MethodCall* method_call, |
| dbus::ExportedObject::ResponseSender response_sender, |
| Delegate::Status status) { |
| DCHECK(OnOriginThread()); |
| |
| switch (status) { |
| case Delegate::SUCCESS: { |
| response_sender.Run(dbus::Response::FromMethodCall(method_call)); |
| break; |
| } |
| case Delegate::REJECTED: { |
| response_sender.Run( |
| dbus::ErrorResponse::FromMethodCall( |
| method_call, bluetooth_profile::kErrorRejected, "rejected") |
| .PassAs<dbus::Response>()); |
| break; |
| } |
| case Delegate::CANCELLED: { |
| response_sender.Run( |
| dbus::ErrorResponse::FromMethodCall( |
| method_call, bluetooth_profile::kErrorCanceled, "canceled") |
| .PassAs<dbus::Response>()); |
| break; |
| } |
| default: |
| NOTREACHED() << "Unexpected status code from delegate: " << status; |
| } |
| } |
| |
| // Origin thread (i.e. the UI thread in production). |
| base::PlatformThreadId origin_thread_id_; |
| |
| // D-Bus bus object is exported on, not owned by this object and must |
| // outlive it. |
| dbus::Bus* bus_; |
| |
| // All incoming method calls are passed on to the Delegate and a callback |
| // passed to generate the reply. |delegate_| is generally the object that |
| // owns this one, and must outlive it. |
| Delegate* delegate_; |
| |
| // D-Bus object path of object we are exporting, kept so we can unregister |
| // again in our destructor. |
| dbus::ObjectPath object_path_; |
| |
| // D-Bus object we are exporting, owned by this object. |
| scoped_refptr<dbus::ExportedObject> exported_object_; |
| |
| // Weak pointer factory for generating 'this' pointers that might live longer |
| // than we do. |
| // Note: This should remain the last member so it'll be destroyed and |
| // invalidate its weak pointers before any other members are destroyed. |
| base::WeakPtrFactory<BluetoothProfileServiceProviderImpl> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(BluetoothProfileServiceProviderImpl); |
| }; |
| |
| BluetoothProfileServiceProvider::BluetoothProfileServiceProvider() { |
| } |
| |
| BluetoothProfileServiceProvider::~BluetoothProfileServiceProvider() { |
| } |
| |
| // static |
| BluetoothProfileServiceProvider* BluetoothProfileServiceProvider::Create( |
| dbus::Bus* bus, |
| const dbus::ObjectPath& object_path, |
| Delegate* delegate) { |
| if (!DBusThreadManager::IsUsingStub(DBusClientBundle::BLUETOOTH)) { |
| return new BluetoothProfileServiceProviderImpl(bus, object_path, delegate); |
| } else { |
| return new FakeBluetoothProfileServiceProvider(object_path, delegate); |
| } |
| } |
| |
| } // namespace chromeos |