/*

* 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          : sipsigcomphandlerimp.h

* Part of       : SIPSigComp

* Version       : SIP/4.0

*

*/

/**

 @internalComponent

*/

#ifndef __SIPSIGCOMPHANDLERIMP_H__

#define __SIPSIGCOMPHANDLERIMP_H__

#include "msiGcompowner.h"

#include "sipsigcomphandler.h"

#include "MCompartmentCtxOwner.h"

#include "MCompartmentUserOwner.h"

class CSigComp;

class CSipSigCompCompartmentCtx;

class CSipSigCompCompartmentUser;

class CSigCompCompressingLogic;

class TSIPSigCompHandlerInitParams;

class MLocalName;

class CSipSigCompHandlerImpl :

		public CSigCompHandler,

		public MSigCompOwner,

		public MCompartmentCtxOwner,

		public MCompartmentUserOwner

{

public:

	static CSipSigCompHandlerImpl* NewL( TAny* aInitParams );

	static CSipSigCompHandlerImpl* NewLC( TAny* aInitParams );

	/**

	* Destructor.

	*

	* @post All objects and members created by the SigComp Handler are deleted

	*

	*/

    ~CSipSigCompHandlerImpl ();

public: // From MSigCompController

    TUint32 CreateCompartmentL( TUint32 aIapId );

    void RemoveCompartment( TUint32 aCompartmentId );

	CBufBase* DecompressL( const TDesC8& aMessage,

                           TUint& aBytesConsumed,

                           TBool aIsStreamBased );

	CBufBase* EncodeL( const TSIPTransportParams& aTransportParams,

	                   CSIPRequest& aRequest,

                       const TInetAddr& aAddress,

					   TBool aStreambasedProtocol,

                       TBool& aCompressed );

	CBufBase* EncodeL( const TSIPTransportParams& aTransportParams,

	                   CSIPResponse& aResponse,

                       const TInetAddr& aAddress,

                       TBool aStreambasedProtocol,

                       TBool& aCompressed );

	TBool IsCompleteSigCompMessageL( const TDesC8& aMessage ) const;

	TBool IsSigCompMsg( const TDesC8& aMessage ) const;

	TBool IsSupported() const;

	TInt CompartmentCount();

	void SendFailedL( TUint32 aCompartmentId );

	void AllowL( const TInetAddr& aAddress, TUint32 aIapId );

	void Deny();

public: // From MSigCompOwner

	CBufBase* EncodeSipL( CSIPResponse& aResponse,

		                  TBool aStreambasedProtocol );

	CBufBase* EncodeSipL( CSIPRequest& aRequest,

		                  TBool aStreambasedProtocol );

	CBufBase* EncodeSipAndCompressL( const TSIPTransportParams& aTransportParams,

	                                 CSIPResponse& aResponse,

            					     const TInetAddr& aAddress,

            						 TBool aStreambasedProtocol );

	CBufBase* EncodeSipAndCompressL( const TSIPTransportParams& aTransportParams,

	                                 CSIPRequest& aRequest,

                                     const TInetAddr& aAddress,

                                     TBool aStreambasedProtocol );

	CSigComp* SigComp() {return iSigComp;}

	TBool Match( const TDesC8& aAddress );

	TBool HasCompartmentUser( const TSIPTransportParams& aTransportParams );

public: // From MCompartmentCtxOwner

	void KillMe( CSipSigCompCompartmentCtx* aCompartmentCtx );	

public: // From MCompartmentCtxUser

	CSipSigCompCompartmentCtx* CreateCompartmentL( const TInetAddr& aAddress,

                                            	   TUint32 aIapId,

	                                               TBool aDynamicCompression );

    CSipSigCompCompartmentCtx* SearchCompartmentByInetAddr( const TInetAddr& aAddress,

	                                                        TUint32 aIapId );

protected:

    void ConstructL();

private:

	CSipSigCompHandlerImpl( TSIPSigCompHandlerInitParams* aInitParams );

private:

    TUint32 CreateCompartmentId();

	TUint32 CreateCompartmentUserL( TUint32 aIapId );

	TInt DeleteCompartmentUser( TUint32 aCompartmentId );					

	CSipSigCompCompartmentUser* SearchCompartmentUserL( TUint32 aCompartmentId,

                                                        const TInetAddr& aAddress );  

	CSipSigCompCompartmentUser* SearchCompartmentUserByCompId( TUint32 aCompartmentId );

	void RemoveAllCompartments();

private: // Data

	CSigComp* iSigComp;

	TSglQue<CSipSigCompCompartmentCtx> iCompartmentList;

	TSglQue<CSipSigCompCompartmentUser> iCompartmentUserList;

	CSigCompCompressingLogic* iCompressingLogic;

	MLocalName& iLocalName;

	TInt iMaxCompartmentCount;

	TUint32 iCompartmentIdCounter;

private: //For testing purposes

#ifdef CPPUNIT_TEST	

	friend class CSigCompHandlerTest;

#endif

};

#endif // end of __SIPSIGCOMPHANDLERIMP_H__