/*

* Copyright (c) 2003-2009 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        : sipietfprofilecontext.h

* Part of     : sip ietf agent

* Interface   : Internal IF

* Version     : 1.0

*

*/

/**

 @internalComponent

*/

#ifndef SIPIETFPRROFILECONTEXT_H

#define SIPIETFPRROFILECONTEXT_H

//INCLUDES 

#include "sipprofilecontextbase.h"

#include "sipietfconnectioncontext.h"

#include <sipprofileagentextensionparams.h>

// FORWARD DECLARATIONS

class CSIPConcreteProfile;

// CLASS DECLARATION

/**

*  Class for maintaining the information related

*  to a particular IETF type profile. Class stores

*  related registration, sip connection and transactions.

*

*  @lib n/a.

*/

class CSIPIetfProfileContext : public CSIPProfileContextBase

	{

	public:

        /**

        * Two-phased constructor.

	    * @param aSIP a handle to SIP server

		* @param aConnection a SIP connection

		* @param aInitState a init state

		* @param aProfile a profile

        */

		static CSIPIetfProfileContext* NewL(

			CSIP& aSIP,

			CSIPIetfConnectionContext& aConnection,

			MSIPProfileAgentObserver& aObserver,

			CSIPPrflStateBase& aInitState,

			CSIPConcreteProfile& aProfile,

			CDeltaTimer& aDeltaTimer,

			CSipProfileAgentConfigExtension& aConfigExtension);

        /**

        * Two-phased constructor.

	    * @param aSIP a handle to SIP server

		* @param aConnection a SIP connection

		* @param aInitState a init state

		* @param aProfile a profile

        */

		static CSIPIetfProfileContext* NewLC(

			CSIP& aSIP,

			CSIPIetfConnectionContext& aConnection,

			MSIPProfileAgentObserver& aObserver,

			CSIPPrflStateBase& aInitState,

			CSIPConcreteProfile& aProfile,

			CDeltaTimer& aDeltaTimer,

			CSipProfileAgentConfigExtension& aConfigExtension);

        /**

        * Destructor.

        */

		~CSIPIetfProfileContext();

    public: // From MSIPProfileContext

		void DestroyRegistration();

        void CreateRegistrationL();

		CSIPMessageElements* CreateMsgElementsLC();

        CSIPMessageElements* CreateDeRegisterElementsL();

		void UpdateContactHeaderParamsL(CSIPConcreteProfile& aNewProfile);

        void SetRegisteredAORsL();	

        void ResolveProxyL();

        void CancelProxyResolving();	

	public: // New functions

	    /**

	    * Deregisters SIP profile according to the profile type.

	    * @param aSIPConcreteProfile sip profile to deregister

	    */

	    void DeregisterL();

 		/**

		* Updates SIP profile. This can lead to profile de-registration

		* and registration. Function leaves with KErrArgument if profiles 

		* are the same.

		* @param aNewProfile sip profile to update

		*/

		void UpdateL(CSIPConcreteProfile& aNewProfile);

		/**

		* A SIP response creating a registration binding or an error response 

		* that is related to an refreshed registration binding  

		* has been received from the network.

		* @param aTransaction contains response elements.

		* The ownership is transferred.

		* @param aRegistration associated registration

		* @param aHandled, returned ETrue if response handled

		*/

		void IncomingResponse(CSIPClientTransaction& aTransaction,

		                      CSIPRegistrationBinding& aRegistration,

		                      TBool& aHandled);

		TBool RetryTimerInUse();                      

		TUint DelayTime();

		TBool RetryAfterTimer();

	private: // Constructor

		CSIPIetfProfileContext(

			CSIP& aSIP,

			CSIPIetfConnectionContext& iConnection,

			MSIPProfileAgentObserver& aObserver,

			CSIPPrflStateBase& aInitState,

			CSIPConcreteProfile& aProfile,

			CDeltaTimer& aDeltaTimer,

			CSipProfileAgentConfigExtension& aConfigExtension);

	    void ConstructL();

	private: // From CSIPProfileContextBase

		void ConnectionStateChangedImpl(CSIPConnection::TState aState);

		TBool RetryRegister(CSIPClientTransaction* aTransaction, 

                            TInt aError);

		TBool ShouldRetryRegistration(TInt aError);					 

		void InitializeRetryTimerValue();

    private: // New functions

        CSIPMessageElements* CreateMsgElementsForUpdateLC(

            CSIPConcreteProfile& aProfile);

		TUint RandomPercent();

		TBool IsAddressSIPSURIL(const TDesC8& aValue) const;

		HBufC8* SetAddressToSIPSURIL(const TDesC8& aValue);

		TBool SetTlsToSecurityClientL();

		TBool IsDynamicNumericIPAddress( const TDesC8& aValue );

		TBool IsConfiguredOutboundProxySIPURIL( const TDesC8& aValue );

        RStringF TransportProtocol(const CUri8& aUri) const;

	private: // Data

		CSIPIetfConnectionContext&	iConnectionContext;

		RStringF iStrNATTraversalRequired;

		TInt64 						iRandomSeed;

		TUint  						iRetryTime;

		TUint						iRetryCounter;

		TUint						iRetryCounterSum;

		TBool						iRetryTimerUse;

		CSipProfileAgentConfigExtension& iConfigExtension;

    private: // For testing purposes

#ifdef CPPUNIT_TEST

		friend class CSIPIetfProfileContextTest;

		friend class CSIPIetfConnectionContextTest;

		friend class CSIPIetfProfileAgentTest;

#endif

	};

#endif