| // 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_agent_service_provider.h" |
| |
| #include <string> |
| |
| #include "base/bind.h" |
| #include "base/logging.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/sys_info.h" |
| #include "base/threading/platform_thread.h" |
| #include "chromeos/dbus/fake_bluetooth_agent_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 BluetoothAgentServiceProvider implementation used in production. |
| class BluetoothAgentServiceProviderImpl |
| : public BluetoothAgentServiceProvider { |
| public: |
| BluetoothAgentServiceProviderImpl(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 Agent: " << object_path_.value(); |
| |
| exported_object_ = bus_->GetExportedObject(object_path_); |
| |
| exported_object_->ExportMethod( |
| bluetooth_agent::kBluetoothAgentInterface, |
| bluetooth_agent::kRelease, |
| base::Bind(&BluetoothAgentServiceProviderImpl::Release, |
| weak_ptr_factory_.GetWeakPtr()), |
| base::Bind(&BluetoothAgentServiceProviderImpl::OnExported, |
| weak_ptr_factory_.GetWeakPtr())); |
| |
| exported_object_->ExportMethod( |
| bluetooth_agent::kBluetoothAgentInterface, |
| bluetooth_agent::kRequestPinCode, |
| base::Bind(&BluetoothAgentServiceProviderImpl::RequestPinCode, |
| weak_ptr_factory_.GetWeakPtr()), |
| base::Bind(&BluetoothAgentServiceProviderImpl::OnExported, |
| weak_ptr_factory_.GetWeakPtr())); |
| |
| exported_object_->ExportMethod( |
| bluetooth_agent::kBluetoothAgentInterface, |
| bluetooth_agent::kDisplayPinCode, |
| base::Bind(&BluetoothAgentServiceProviderImpl::DisplayPinCode, |
| weak_ptr_factory_.GetWeakPtr()), |
| base::Bind(&BluetoothAgentServiceProviderImpl::OnExported, |
| weak_ptr_factory_.GetWeakPtr())); |
| |
| exported_object_->ExportMethod( |
| bluetooth_agent::kBluetoothAgentInterface, |
| bluetooth_agent::kRequestPasskey, |
| base::Bind(&BluetoothAgentServiceProviderImpl::RequestPasskey, |
| weak_ptr_factory_.GetWeakPtr()), |
| base::Bind(&BluetoothAgentServiceProviderImpl::OnExported, |
| weak_ptr_factory_.GetWeakPtr())); |
| |
| exported_object_->ExportMethod( |
| bluetooth_agent::kBluetoothAgentInterface, |
| bluetooth_agent::kDisplayPasskey, |
| base::Bind(&BluetoothAgentServiceProviderImpl::DisplayPasskey, |
| weak_ptr_factory_.GetWeakPtr()), |
| base::Bind(&BluetoothAgentServiceProviderImpl::OnExported, |
| weak_ptr_factory_.GetWeakPtr())); |
| |
| exported_object_->ExportMethod( |
| bluetooth_agent::kBluetoothAgentInterface, |
| bluetooth_agent::kRequestConfirmation, |
| base::Bind(&BluetoothAgentServiceProviderImpl::RequestConfirmation, |
| weak_ptr_factory_.GetWeakPtr()), |
| base::Bind(&BluetoothAgentServiceProviderImpl::OnExported, |
| weak_ptr_factory_.GetWeakPtr())); |
| |
| exported_object_->ExportMethod( |
| bluetooth_agent::kBluetoothAgentInterface, |
| bluetooth_agent::kRequestAuthorization, |
| base::Bind(&BluetoothAgentServiceProviderImpl::RequestAuthorization, |
| weak_ptr_factory_.GetWeakPtr()), |
| base::Bind(&BluetoothAgentServiceProviderImpl::OnExported, |
| weak_ptr_factory_.GetWeakPtr())); |
| |
| exported_object_->ExportMethod( |
| bluetooth_agent::kBluetoothAgentInterface, |
| bluetooth_agent::kAuthorizeService, |
| base::Bind(&BluetoothAgentServiceProviderImpl::AuthorizeService, |
| weak_ptr_factory_.GetWeakPtr()), |
| base::Bind(&BluetoothAgentServiceProviderImpl::OnExported, |
| weak_ptr_factory_.GetWeakPtr())); |
| |
| exported_object_->ExportMethod( |
| bluetooth_agent::kBluetoothAgentInterface, |
| bluetooth_agent::kCancel, |
| base::Bind(&BluetoothAgentServiceProviderImpl::Cancel, |
| weak_ptr_factory_.GetWeakPtr()), |
| base::Bind(&BluetoothAgentServiceProviderImpl::OnExported, |
| weak_ptr_factory_.GetWeakPtr())); |
| } |
| |
| virtual ~BluetoothAgentServiceProviderImpl() { |
| VLOG(1) << "Cleaning up Bluetooth Agent: " << 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 agent is unregistered from the Bluetooth |
| // daemon, generally at the end of a pairing 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 requires a PIN Code for |
| // device authentication. |
| void RequestPinCode(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) << "RequestPinCode called with incorrect paramters: " |
| << method_call->ToString(); |
| return; |
| } |
| |
| Delegate::PinCodeCallback callback = base::Bind( |
| &BluetoothAgentServiceProviderImpl::OnPinCode, |
| weak_ptr_factory_.GetWeakPtr(), |
| method_call, |
| response_sender); |
| |
| delegate_->RequestPinCode(device_path, callback); |
| } |
| |
| // Called by dbus:: when the Bluetooth daemon requires that the user |
| // enter a PIN Code into the remote device so that it may be |
| // authenticated. |
| void DisplayPinCode(dbus::MethodCall* method_call, |
| dbus::ExportedObject::ResponseSender response_sender) { |
| DCHECK(OnOriginThread()); |
| DCHECK(delegate_); |
| |
| dbus::MessageReader reader(method_call); |
| dbus::ObjectPath device_path; |
| std::string pincode; |
| if (!reader.PopObjectPath(&device_path) || |
| !reader.PopString(&pincode)) { |
| LOG(WARNING) << "DisplayPinCode called with incorrect paramters: " |
| << method_call->ToString(); |
| return; |
| } |
| |
| delegate_->DisplayPinCode(device_path, pincode); |
| |
| response_sender.Run(dbus::Response::FromMethodCall(method_call)); |
| } |
| |
| // Called by dbus:: when the Bluetooth daemon requires a Passkey for |
| // device authentication. |
| void RequestPasskey(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) << "RequestPasskey called with incorrect paramters: " |
| << method_call->ToString(); |
| return; |
| } |
| |
| Delegate::PasskeyCallback callback = base::Bind( |
| &BluetoothAgentServiceProviderImpl::OnPasskey, |
| weak_ptr_factory_.GetWeakPtr(), |
| method_call, |
| response_sender); |
| |
| delegate_->RequestPasskey(device_path, callback); |
| } |
| |
| // Called by dbus:: when the Bluetooth daemon requires that the user |
| // enter a Passkey into the remote device so that it may be |
| // authenticated. |
| void DisplayPasskey(dbus::MethodCall* method_call, |
| dbus::ExportedObject::ResponseSender response_sender) { |
| DCHECK(OnOriginThread()); |
| DCHECK(delegate_); |
| |
| dbus::MessageReader reader(method_call); |
| dbus::ObjectPath device_path; |
| uint32 passkey; |
| uint16 entered; |
| if (!reader.PopObjectPath(&device_path) || |
| !reader.PopUint32(&passkey) || |
| !reader.PopUint16(&entered)) { |
| LOG(WARNING) << "DisplayPasskey called with incorrect paramters: " |
| << method_call->ToString(); |
| return; |
| } |
| |
| delegate_->DisplayPasskey(device_path, passkey, entered); |
| |
| response_sender.Run(dbus::Response::FromMethodCall(method_call)); |
| } |
| |
| // Called by dbus:: when the Bluetooth daemon requires that the user |
| // confirm that a Passkey is displayed on the screen of the remote |
| // device so that it may be authenticated. |
| void RequestConfirmation( |
| dbus::MethodCall* method_call, |
| dbus::ExportedObject::ResponseSender response_sender) { |
| DCHECK(OnOriginThread()); |
| DCHECK(delegate_); |
| |
| dbus::MessageReader reader(method_call); |
| dbus::ObjectPath device_path; |
| uint32 passkey; |
| if (!reader.PopObjectPath(&device_path) || |
| !reader.PopUint32(&passkey)) { |
| LOG(WARNING) << "RequestConfirmation called with incorrect paramters: " |
| << method_call->ToString(); |
| return; |
| } |
| |
| Delegate::ConfirmationCallback callback = base::Bind( |
| &BluetoothAgentServiceProviderImpl::OnConfirmation, |
| weak_ptr_factory_.GetWeakPtr(), |
| method_call, |
| response_sender); |
| |
| delegate_->RequestConfirmation(device_path, passkey, callback); |
| } |
| |
| // Called by dbus:: when the Bluetooth daemon requires that the user |
| // confirm an incoming just-works pairing. |
| void RequestAuthorization( |
| 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) << "RequestAuthorization called with incorrect paramters: " |
| << method_call->ToString(); |
| return; |
| } |
| |
| Delegate::ConfirmationCallback callback = base::Bind( |
| &BluetoothAgentServiceProviderImpl::OnConfirmation, |
| weak_ptr_factory_.GetWeakPtr(), |
| method_call, |
| response_sender); |
| |
| delegate_->RequestAuthorization(device_path, callback); |
| } |
| |
| // Called by dbus:: when the Bluetooth daemon requires that the user |
| // confirm that that a remote device is authorized to connect to a service |
| // UUID. |
| void AuthorizeService(dbus::MethodCall* method_call, |
| dbus::ExportedObject::ResponseSender response_sender) { |
| DCHECK(OnOriginThread()); |
| DCHECK(delegate_); |
| |
| dbus::MessageReader reader(method_call); |
| dbus::ObjectPath device_path; |
| std::string uuid; |
| if (!reader.PopObjectPath(&device_path) || |
| !reader.PopString(&uuid)) { |
| LOG(WARNING) << "AuthorizeService called with incorrect paramters: " |
| << method_call->ToString(); |
| return; |
| } |
| |
| Delegate::ConfirmationCallback callback = base::Bind( |
| &BluetoothAgentServiceProviderImpl::OnConfirmation, |
| weak_ptr_factory_.GetWeakPtr(), |
| method_call, |
| response_sender); |
| |
| delegate_->AuthorizeService(device_path, uuid, 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 to response to a method requesting a PIN code. |
| void OnPinCode(dbus::MethodCall* method_call, |
| dbus::ExportedObject::ResponseSender response_sender, |
| Delegate::Status status, |
| const std::string& pincode) { |
| DCHECK(OnOriginThread()); |
| |
| switch (status) { |
| case Delegate::SUCCESS: { |
| scoped_ptr<dbus::Response> response( |
| dbus::Response::FromMethodCall(method_call)); |
| dbus::MessageWriter writer(response.get()); |
| writer.AppendString(pincode); |
| response_sender.Run(response.Pass()); |
| break; |
| } |
| case Delegate::REJECTED: { |
| response_sender.Run( |
| dbus::ErrorResponse::FromMethodCall( |
| method_call, bluetooth_agent::kErrorRejected, "rejected") |
| .PassAs<dbus::Response>()); |
| break; |
| } |
| case Delegate::CANCELLED: { |
| response_sender.Run( |
| dbus::ErrorResponse::FromMethodCall( |
| method_call, bluetooth_agent::kErrorCanceled, "canceled") |
| .PassAs<dbus::Response>()); |
| break; |
| } |
| default: |
| NOTREACHED() << "Unexpected status code from delegate: " << status; |
| } |
| } |
| |
| // Called by the Delegate to response to a method requesting a Passkey. |
| void OnPasskey(dbus::MethodCall* method_call, |
| dbus::ExportedObject::ResponseSender response_sender, |
| Delegate::Status status, |
| uint32 passkey) { |
| DCHECK(OnOriginThread()); |
| |
| switch (status) { |
| case Delegate::SUCCESS: { |
| scoped_ptr<dbus::Response> response( |
| dbus::Response::FromMethodCall(method_call)); |
| dbus::MessageWriter writer(response.get()); |
| writer.AppendUint32(passkey); |
| response_sender.Run(response.Pass()); |
| break; |
| } |
| case Delegate::REJECTED: { |
| response_sender.Run( |
| dbus::ErrorResponse::FromMethodCall( |
| method_call, bluetooth_agent::kErrorRejected, "rejected") |
| .PassAs<dbus::Response>()); |
| break; |
| } |
| case Delegate::CANCELLED: { |
| response_sender.Run( |
| dbus::ErrorResponse::FromMethodCall( |
| method_call, bluetooth_agent::kErrorCanceled, "canceled") |
| .PassAs<dbus::Response>()); |
| break; |
| } |
| default: |
| NOTREACHED() << "Unexpected status code from delegate: " << status; |
| } |
| } |
| |
| // 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_agent::kErrorRejected, "rejected") |
| .PassAs<dbus::Response>()); |
| break; |
| } |
| case Delegate::CANCELLED: { |
| response_sender.Run( |
| dbus::ErrorResponse::FromMethodCall( |
| method_call, bluetooth_agent::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<BluetoothAgentServiceProviderImpl> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(BluetoothAgentServiceProviderImpl); |
| }; |
| |
| BluetoothAgentServiceProvider::BluetoothAgentServiceProvider() { |
| } |
| |
| BluetoothAgentServiceProvider::~BluetoothAgentServiceProvider() { |
| } |
| |
| // static |
| BluetoothAgentServiceProvider* BluetoothAgentServiceProvider::Create( |
| dbus::Bus* bus, |
| const dbus::ObjectPath& object_path, |
| Delegate* delegate) { |
| if (base::SysInfo::IsRunningOnChromeOS()) { |
| return new BluetoothAgentServiceProviderImpl(bus, object_path, delegate); |
| } else { |
| return new FakeBluetoothAgentServiceProvider(object_path, delegate); |
| } |
| } |
| |
| } // namespace chromeos |
