Bluetooth: Profile support for Chrome OS

device/bluetooth/bluetooth_profile_experimental_chromeos.cc

+// Copyright (c) 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 "device/bluetooth/bluetooth_profile_experimental_chromeos.h"
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/bind.h"
+#include "base/callback.h"
+#include "base/logging.h"
+#include "base/memory/weak_ptr.h"
+#include "base/string_util.h"
+#include "chromeos/dbus/dbus_thread_manager.h"
+#include "chromeos/dbus/experimental_bluetooth_profile_manager_client.h"
+#include "chromeos/dbus/experimental_bluetooth_profile_service_provider.h"
+#include "dbus/bus.h"
+#include "dbus/file_descriptor.h"
+#include "dbus/object_path.h"
+#include "device/bluetooth/bluetooth_profile.h"
+#include "device/bluetooth/bluetooth_socket.h"
+#include "device/bluetooth/bluetooth_socket_experimental_chromeos.h"
+
+using device::BluetoothProfile;
+using device::BluetoothSocket;
+
+namespace chromeos {
+
+BluetoothProfileExperimentalChromeOS::BluetoothProfileExperimentalChromeOS()
+    : weak_ptr_factory_(this) {
+
+}
+
+BluetoothProfileExperimentalChromeOS::~BluetoothProfileExperimentalChromeOS() {
+  DCHECK(object_path_.value().empty());
+  DCHECK(profile_.get() == NULL);
+}
+
+void BluetoothProfileExperimentalChromeOS::Init(
+    const std::string& uuid,
+    const device::BluetoothProfile::Options& options,
+    const ProfileCallback& callback) {
+  DCHECK(object_path_.value().empty());
+  DCHECK(profile_.get() == NULL);
+
+  ExperimentalBluetoothProfileManagerClient::Options bluetooth_options;
+  bluetooth_options.name = options.name;
+  bluetooth_options.service = uuid;
+  bluetooth_options.channel = options.channel;
+  bluetooth_options.psm = options.psm;
+  bluetooth_options.require_authentication = options.require_authentication;
+  bluetooth_options.require_authorization = options.require_authorization;
+  bluetooth_options.auto_connect = options.auto_connect;
+  bluetooth_options.version = options.version;
+  bluetooth_options.features = options.features;
+
+  // The object path is relatively meaningless, but has to be unique, so we
+  // use the UUID of the profile.
+  std::string uuid_path;
+  ReplaceChars(uuid, ":", "_", &uuid_path);
+
+  object_path_ = dbus::ObjectPath("/org/chromium/bluetooth_profile/" +
+                                  uuid_path);
+
+  dbus::Bus* system_bus = DBusThreadManager::Get()->GetSystemBus();
+  profile_.reset(ExperimentalBluetoothProfileServiceProvider::Create(
+      system_bus, object_path_, this));
+  DCHECK(profile_.get());
+
+  VLOG(1) << object_path_.value() << ": Register profile";
+  DBusThreadManager::Get()->GetExperimentalBluetoothProfileManagerClient()->
+      RegisterProfile(
+          object_path_,
+          uuid,
+          bluetooth_options,
+          base::Bind(
+              &BluetoothProfileExperimentalChromeOS::OnRegisterProfile,
+              weak_ptr_factory_.GetWeakPtr(),
+              callback),
+          base::Bind(
+              &BluetoothProfileExperimentalChromeOS::OnRegisterProfileError,
+              weak_ptr_factory_.GetWeakPtr(),
+              callback));
+}
+
+void BluetoothProfileExperimentalChromeOS::Unregister() {
+  DCHECK(!object_path_.value().empty());
+  DCHECK(profile_.get());
+
+  profile_.reset();
+
+  VLOG(1) << object_path_.value() << ": Unregister profile";
+  DBusThreadManager::Get()->GetExperimentalBluetoothProfileManagerClient()->
+      UnregisterProfile(
+          object_path_,
+          base::Bind(
+              &BluetoothProfileExperimentalChromeOS::OnUnregisterProfile,
+              weak_ptr_factory_.GetWeakPtr()),
+          base::Bind(
+              &BluetoothProfileExperimentalChromeOS::OnUnregisterProfileError,
+              weak_ptr_factory_.GetWeakPtr()));
+}
+
+void BluetoothProfileExperimentalChromeOS::SetConnectionCallback(
+    const SocketCallback& callback) {
+  socket_callback_ = callback;
+}
+
+void BluetoothProfileExperimentalChromeOS::Release() {

[youngki, 2013/04/25 14:34:34]

Add TODO to implement this method.

[keybuk, 2013/04/25 17:16:41]

This IS the implementation ;) while we have to provide a method call for this
for BlueZ, we don't need to do anything special when the profile object is
released

+  VLOG(1) << object_path_.value() << ": Release";
+}
+
+void BluetoothProfileExperimentalChromeOS::NewConnection(
+    const dbus::ObjectPath& device_path,
+    dbus::FileDescriptor* fd,
+    const ExperimentalBluetoothProfileServiceProvider::Delegate::Options&
+        ptions,
+    const ConfirmationCallback& callback) {
+  VLOG(1) << object_path_.value() << ": New connection from device: "
+          << device_path.value();;
+  if (socket_callback_.is_null()) {
+    callback.Run(REJECTED);
+    return;
+  }
+
+  callback.Run(SUCCESS);
+
+  // TODO(keybuk): look up the device
+
+  scoped_refptr<BluetoothSocket> socket((
+      BluetoothSocketExperimentalChromeOS::Create(fd)));
+  socket_callback_.Run(socket);
+}
+
+void BluetoothProfileExperimentalChromeOS::RequestDisconnection(

[youngki, 2013/04/25 14:34:34]

Add TODO to implement this method.

[keybuk, 2013/04/25 17:16:41]

As above, this IS the implementation - we don't have anything in our JS API to
"request disconnection" because I didn't think it made any real sense for our
usage model

So returning a positive response to BlueZ seems all that is required here

+    const dbus::ObjectPath& device_path,
+    const ConfirmationCallback& callback) {
+  VLOG(1) << object_path_.value() << ": Request disconnection";
+  callback.Run(SUCCESS);
+}
+
+void BluetoothProfileExperimentalChromeOS::Cancel() {

[youngki, 2013/04/25 14:34:34]

Add TODO to implement this method.

[keybuk, 2013/04/25 17:16:41]

Also this IS the implementation, the method is required for BlueZ but we don't
have to do anything here because it's just called before the error callback to
the ConnectToProfile() method and that's where we expect the error to be handled

(and yes, the implementation of ConnectToProfile() is still pending, along with
unit tests)

+  VLOG(1) << object_path_.value() << ": Cancel";
+}
+
+void BluetoothProfileExperimentalChromeOS::OnRegisterProfile(
+    const ProfileCallback& callback) {
+  VLOG(1) << object_path_.value() << ": Profile registered";
+  callback.Run(this);
+}
+
+void BluetoothProfileExperimentalChromeOS::OnRegisterProfileError(
+    const ProfileCallback& callback,
+    const std::string& error_name,
+    const std::string& error_message) {
+  LOG(WARNING) << object_path_.value() << ": Failed to register profile: "
+               << error_name << ": " << error_message;
+  callback.Run(NULL);
+
+  Unregister();
+}
+
+void BluetoothProfileExperimentalChromeOS::OnUnregisterProfile() {
+  VLOG(1) << object_path_.value() << ": Profile unregistered";
+  object_path_ = dbus::ObjectPath("");
+  delete this;
+}
+
+void BluetoothProfileExperimentalChromeOS::OnUnregisterProfileError(
+    const std::string& error_name,
+    const std::string& error_message) {
+  LOG(WARNING) << object_path_.value() << ": Failed to unregister profile: "
+               << error_name << ": " << error_message;
+  object_path_ = dbus::ObjectPath("");
+  delete this;
+}
+
+}  // namespace chromeos