chromeos/dbus/bluetooth_agent_service_provider.h - chromium/src - Git at Google

 // 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.

 #ifndef CHROMEOS_DBUS_BLUETOOTH_AGENT_SERVICE_PROVIDER_H_
 #define CHROMEOS_DBUS_BLUETOOTH_AGENT_SERVICE_PROVIDER_H_

 #include <string>

 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "chromeos/chromeos_export.h"
 #include "dbus/bus.h"
 #include "dbus/object_path.h"

 namespace chromeos {

 // BluetoothAgentServiceProvider is used to provide a D-Bus object that BlueZ
 // can communicate with during a remote device pairing request.
 //
 // Instantiate with a chosen D-Bus object path and delegate object, and pass
 // the D-Bus object path as the |agent_path| argument to the
 // chromeos::BluetoothAdapterClient::CreatePairedDevice() method. Calls made
 // to the agent by the Bluetooth daemon will be passed on to your Delegate
 // object for handling, and responses returned using the callbacks supplied
 // to those methods.
 class CHROMEOS_EXPORT BluetoothAgentServiceProvider {
  public:
   // Interface for reacting to agent requests.
   class Delegate {
    public:
     virtual ~Delegate() {}

     // Possible status values that may be returned to callbacks. Success
     // indicates that a pincode or passkey has been obtained, or permission
     // granted; rejected indicates the user rejected the request or denied
     // permission; cancelled indicates the user cancelled the request
     // without confirming either way.
     enum Status {
       SUCCESS,
       REJECTED,
       CANCELLED
     };

     // Possible values for the |mode| parameter of the ConfirmModeChange()
     // method. Off indicates that the adapter is to be turned off, connectable
     // indicates that the adapter is to be turned on and accept incoming
     // connections, and discoverable indicates the adapter is to be turned
     // on and discoverable by remote devices.
     enum Mode {
       OFF,
       CONNECTABLE,
       DISCOVERABLE
     };

     // The PinCodeCallback is used for the RequestPinCode() method, it should
     // be called with two arguments, the |status| of the request (success,
     // rejected or cancelled) and the |pincode| requested.
     typedef base::Callback<void(Status, const std::string&)> PinCodeCallback;

     // The PasskeyCallback is used for the RequestPasskey() method, it should
     // be called with two arguments, the |status| of the request (success,
     // rejected or cancelled) and the |passkey| requested, a numeric in the
     // range 0-999999,
     typedef base::Callback<void(Status, uint32)> PasskeyCallback;

     // The ConfirmationCallback is used for methods which request confirmation
     // or authorization, it should be called with one argument, the |status|
     // of the request (success, rejected or cancelled).
     typedef base::Callback<void(Status)> ConfirmationCallback;

     // This method will be called when the agent is unregistered from the
     // Bluetooth daemon, generally at the end of a pairing request. It may be
     // used to perform cleanup tasks.
     virtual void Release() = 0;

     // This method will be called when the Bluetooth daemon requires a
     // PIN Code for authentication of the device with object path |device_path|,
     // the agent should obtain the code from the user and call |callback|
     // to provide it, or indicate rejection or cancellation of the request.
     //
     // PIN Codes are generally required for Bluetooth 2.0 and earlier devices
     // for which there is no automatic pairing or special handling.
     virtual void RequestPinCode(const dbus::ObjectPath& device_path,
                                 const PinCodeCallback& callback) = 0;

     // This method will be called when the Bluetooth daemon requires a
     // Passkey for authentication of the device with object path |device_path|,
     // the agent should obtain the passkey from the user (a numeric in the
     // range 0-999999) and call |callback| to provide it, or indicate
     // rejection or cancellation of the request.
     //
     // Passkeys are generally required for Bluetooth 2.1 and later devices
     // which cannot provide input or display on their own, and don't accept
     // passkey-less pairing.
     virtual void RequestPasskey(const dbus::ObjectPath& device_path,
                                 const PasskeyCallback& callback) = 0;

     // This method will be called when the Bluetooth daemon requires that the
     // user enter the PIN code |pincode| into the device with object path
     // |device_path| so that it may be authenticated. The Cancel() method
     // will be called to dismiss the display once pairing is complete or
     // cancelled.
     //
     // This is used for Bluetooth 2.0 and earlier keyboard devices, the
     // |pincode| will always be a six-digit numeric in the range 000000-999999
     // for compatibilty with later specifications.
     virtual void DisplayPinCode(const dbus::ObjectPath& device_path,
                                 const std::string& pincode) = 0;

     // This method will be called when the Bluetooth daemon requires that the
     // user enter the Passkey |passkey| into the device with object path
     // |device_path| so that it may be authenticated. The Cancel() method
     // will be called to dismiss the display once pairing is complete or
     // cancelled.
     //
     // This is used for Bluetooth 2.1 and later devices that support input
     // but not display, such as keyboards. The Passkey is a numeric in the
     // range 0-999999 and should be always presented zero-padded to six
     // digits.
     virtual void DisplayPasskey(const dbus::ObjectPath& device_path,
                                 uint32 passkey) = 0;

     // This method will be called when the Bluetooth daemon requires that the
     // user confirm that the Passkey |passkey| is displayed on the screen
     // of the device with object path |object_path| so that it may be
     // authenticated. The agent should display to the user and ask for
     // confirmation, then call |callback| to provide their response (success,
     // rejected or cancelled).
     //
     // This is used for Bluetooth 2.1 and later devices that support display,
     // such as other computers or phones. The Passkey is a numeric in the
     // range 0-999999 and should be always present zero-padded to six
     // digits.
     virtual void RequestConfirmation(const dbus::ObjectPath& device_path,
                                      uint32 passkey,
                                      const ConfirmationCallback& callback) = 0;

     // This method will be called when the Bluetooth daemon requires that the
     // user confirm that the device with object path |object_path| is
     // authorized to connect to the service with UUID |uuid|. The agent should
     // confirm with the user and call |callback| to provide their response
     // (success, rejected or cancelled).
     virtual void Authorize(const dbus::ObjectPath& device_path,
                            const std::string& uuid,
                            const ConfirmationCallback& callback) = 0;

     // This method will be called when the Bluetooth daemon requires that the
     // user confirm that the device adapter may switch to mode |mode|. The
     // agent should confirm with the user and call |callback| to provide
     // their response (success, rejected or cancelled).
     virtual void ConfirmModeChange(Mode mode,
                                    const ConfirmationCallback& callback) = 0;

     // This method will be called by the Bluetooth daemon to indicate that
     // the request failed before a reply was returned from the device.
     virtual void Cancel() = 0;
   };

   virtual ~BluetoothAgentServiceProvider();

   // Creates the instance where |bus| is the D-Bus bus connection to export
   // the object onto, |object_path| is the object path that it should have
   // and |delegate| is the object to which all method calls will be passed
   // and responses generated from.
   static BluetoothAgentServiceProvider* Create(
       dbus::Bus* bus, const dbus::ObjectPath& object_path, Delegate* delegate);

  protected:
   BluetoothAgentServiceProvider();

  private:
   DISALLOW_COPY_AND_ASSIGN(BluetoothAgentServiceProvider);
 };

 }  // namespace chromeos

 #endif  // CHROMEOS_DBUS_BLUETOOTH_AGENT_SERVICE_PROVIDER_H_
	// 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.

	#ifndef CHROMEOS_DBUS_BLUETOOTH_AGENT_SERVICE_PROVIDER_H_
	#define CHROMEOS_DBUS_BLUETOOTH_AGENT_SERVICE_PROVIDER_H_

	#include <string>

	#include "base/basictypes.h"
	#include "base/callback.h"
	#include "chromeos/chromeos_export.h"
	#include "dbus/bus.h"
	#include "dbus/object_path.h"

	namespace chromeos {

	// BluetoothAgentServiceProvider is used to provide a D-Bus object that BlueZ
	// can communicate with during a remote device pairing request.
	//
	// Instantiate with a chosen D-Bus object path and delegate object, and pass
	// the D-Bus object path as the \|agent_path\| argument to the
	// chromeos::BluetoothAdapterClient::CreatePairedDevice() method. Calls made
	// to the agent by the Bluetooth daemon will be passed on to your Delegate
	// object for handling, and responses returned using the callbacks supplied
	// to those methods.
	class CHROMEOS_EXPORT BluetoothAgentServiceProvider {
	public:
	// Interface for reacting to agent requests.
	class Delegate {
	public:
	virtual ~Delegate() {}

	// Possible status values that may be returned to callbacks. Success
	// indicates that a pincode or passkey has been obtained, or permission
	// granted; rejected indicates the user rejected the request or denied
	// permission; cancelled indicates the user cancelled the request
	// without confirming either way.
	enum Status {
	SUCCESS,
	REJECTED,
	CANCELLED
	};

	// Possible values for the \|mode\| parameter of the ConfirmModeChange()
	// method. Off indicates that the adapter is to be turned off, connectable
	// indicates that the adapter is to be turned on and accept incoming
	// connections, and discoverable indicates the adapter is to be turned
	// on and discoverable by remote devices.
	enum Mode {
	OFF,
	CONNECTABLE,
	DISCOVERABLE
	};

	// The PinCodeCallback is used for the RequestPinCode() method, it should
	// be called with two arguments, the \|status\| of the request (success,
	// rejected or cancelled) and the \|pincode\| requested.
	typedef base::Callback<void(Status, const std::string&)> PinCodeCallback;

	// The PasskeyCallback is used for the RequestPasskey() method, it should
	// be called with two arguments, the \|status\| of the request (success,
	// rejected or cancelled) and the \|passkey\| requested, a numeric in the
	// range 0-999999,
	typedef base::Callback<void(Status, uint32)> PasskeyCallback;

	// The ConfirmationCallback is used for methods which request confirmation
	// or authorization, it should be called with one argument, the \|status\|
	// of the request (success, rejected or cancelled).
	typedef base::Callback<void(Status)> ConfirmationCallback;

	// This method will be called when the agent is unregistered from the
	// Bluetooth daemon, generally at the end of a pairing request. It may be
	// used to perform cleanup tasks.
	virtual void Release() = 0;

	// This method will be called when the Bluetooth daemon requires a
	// PIN Code for authentication of the device with object path \|device_path\|,
	// the agent should obtain the code from the user and call \|callback\|
	// to provide it, or indicate rejection or cancellation of the request.
	//
	// PIN Codes are generally required for Bluetooth 2.0 and earlier devices
	// for which there is no automatic pairing or special handling.
	virtual void RequestPinCode(const dbus::ObjectPath& device_path,
	const PinCodeCallback& callback) = 0;

	// This method will be called when the Bluetooth daemon requires a
	// Passkey for authentication of the device with object path \|device_path\|,
	// the agent should obtain the passkey from the user (a numeric in the
	// range 0-999999) and call \|callback\| to provide it, or indicate
	// rejection or cancellation of the request.
	//
	// Passkeys are generally required for Bluetooth 2.1 and later devices
	// which cannot provide input or display on their own, and don't accept
	// passkey-less pairing.
	virtual void RequestPasskey(const dbus::ObjectPath& device_path,
	const PasskeyCallback& callback) = 0;

	// This method will be called when the Bluetooth daemon requires that the
	// user enter the PIN code \|pincode\| into the device with object path
	// \|device_path\| so that it may be authenticated. The Cancel() method
	// will be called to dismiss the display once pairing is complete or
	// cancelled.
	//
	// This is used for Bluetooth 2.0 and earlier keyboard devices, the
	// \|pincode\| will always be a six-digit numeric in the range 000000-999999
	// for compatibilty with later specifications.
	virtual void DisplayPinCode(const dbus::ObjectPath& device_path,
	const std::string& pincode) = 0;

	// This method will be called when the Bluetooth daemon requires that the
	// user enter the Passkey \|passkey\| into the device with object path
	// \|device_path\| so that it may be authenticated. The Cancel() method
	// will be called to dismiss the display once pairing is complete or
	// cancelled.
	//
	// This is used for Bluetooth 2.1 and later devices that support input
	// but not display, such as keyboards. The Passkey is a numeric in the
	// range 0-999999 and should be always presented zero-padded to six
	// digits.
	virtual void DisplayPasskey(const dbus::ObjectPath& device_path,
	uint32 passkey) = 0;

	// This method will be called when the Bluetooth daemon requires that the
	// user confirm that the Passkey \|passkey\| is displayed on the screen
	// of the device with object path \|object_path\| so that it may be
	// authenticated. The agent should display to the user and ask for
	// confirmation, then call \|callback\| to provide their response (success,
	// rejected or cancelled).
	//
	// This is used for Bluetooth 2.1 and later devices that support display,
	// such as other computers or phones. The Passkey is a numeric in the
	// range 0-999999 and should be always present zero-padded to six
	// digits.
	virtual void RequestConfirmation(const dbus::ObjectPath& device_path,
	uint32 passkey,
	const ConfirmationCallback& callback) = 0;

	// This method will be called when the Bluetooth daemon requires that the
	// user confirm that the device with object path \|object_path\| is
	// authorized to connect to the service with UUID \|uuid\|. The agent should
	// confirm with the user and call \|callback\| to provide their response
	// (success, rejected or cancelled).
	virtual void Authorize(const dbus::ObjectPath& device_path,
	const std::string& uuid,
	const ConfirmationCallback& callback) = 0;

	// This method will be called when the Bluetooth daemon requires that the
	// user confirm that the device adapter may switch to mode \|mode\|. The
	// agent should confirm with the user and call \|callback\| to provide
	// their response (success, rejected or cancelled).
	virtual void ConfirmModeChange(Mode mode,
	const ConfirmationCallback& callback) = 0;

	// This method will be called by the Bluetooth daemon to indicate that
	// the request failed before a reply was returned from the device.
	virtual void Cancel() = 0;
	};

	virtual ~BluetoothAgentServiceProvider();

	// Creates the instance where \|bus\| is the D-Bus bus connection to export
	// the object onto, \|object_path\| is the object path that it should have
	// and \|delegate\| is the object to which all method calls will be passed
	// and responses generated from.
	static BluetoothAgentServiceProvider* Create(
	dbus::Bus* bus, const dbus::ObjectPath& object_path, Delegate* delegate);

	protected:
	BluetoothAgentServiceProvider();

	private:
	DISALLOW_COPY_AND_ASSIGN(BluetoothAgentServiceProvider);
	};

	} // namespace chromeos

	#endif // CHROMEOS_DBUS_BLUETOOTH_AGENT_SERVICE_PROVIDER_H_