/*

* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

* Name          : CancelUAS.h

* Part of       : TransactionUser

* Version       : SIP/4.0

*

*/

/**

 @internalComponent

*/

#ifndef CANCELUAS_H

#define CANCELUAS_H

// INCLUDES

#include "NormalUAS.h"

// FORWARD DECLARATIONS

class RStringF;

// CLASS DECLARATION

/*

 * This class represents a CANCEL UserAgent server. It is created for handling

 * a CANCEL request received from network and it sends a final response back to

 * remote endpoint without passing the CANCEL to upper layer.

 */

class CCancelUAS : public CNormalUAS

	{

public:

	static CCancelUAS* NewL(CUserAgentCreateParams& aParams,

							MSipConnectionMgr& aConnectionMgr,

							MSIPRequestRouter& aRouter,

                            MSipDialogs& aDialogs);

	/**

	 * CANCEL has been received from network.

	 *

	 * @pre aCancel != NULL

	 * @post

	 *

	 * @see

	 *

	 * @param aCancel CANCEL request, ownership is transferred

	 * @param aFinalRespSent State which UAS will enter	 

	 */

	void CancelReceivedL(CSIPRequest* aCancel,

						 const CUserAgentState& aFinalRespSent);

	static CCancelUAS& Ptr(CUserAgent& aUserAgent);

private:

	CCancelUAS(CUserAgentCreateParams& aParams,

               MSipDialogs& aDialogs,

               MSIPRequestRouter& aRouter);

	//uses CreateTransactionL of CNormalUAS

	void ConstructL(MSipConnectionMgr& aConnectionMgr);

	/**

	 * Sends 200 response.

	 *	 

	 * @pre

	 * @post

	 *

	 * @see

	 *	 

	 * @param aFinalRespSent State which UAS will enter.

	 * @param aToTag To tag	 

	 */

	void Send200L(const CUserAgentState& aFinalRespSent, RStringF aToTag);

	};

#endif // end of CANCELUAS_H

// End of File