/*

* Copyright (c) 2002-2005 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:   Class for handling fallback in case of multiple SLP

*

*/

#ifndef C_COMASUPLFALLBACKHANDLER_H

#define C_COMASUPLFALLBACKHANDLER_H

#include <e32base.h>

#include "epos_csuplconnection.h"

#include "epos_csuplsettingsinternal.h"

#include "epos_omasuplconstants.h"

#include "epos_comasuplconnrequestor.h"

class CSuplSettingsInternal;

class COMASuplTrace;

/**

 *  Class for Handling Fallback...

 *

 *  @lib eposomasuplprotocolhandler.lib

 *  @since S60 v3.1

 */

struct TSLPDetails

{

	TUint64 iSLPId;

	TBuf<KHSLPAddressLength> iHSLPAddress;

	TBuf<KHSLPAddressLength>  iIapName;

	TBool iIsIAPDialgShown;

	TBool iTls;

	TBool iPskTls;

	TBool iHomeNetworkUsage;   //True means usage is allowed in home network

};

class COMASuplFallBackHandler : public CBase

{

	public :  // Constructor 

		/**

		* NewL Method.

		* @since Series 60 3.1

		* @param MEventCompletionObserver

		* @return Instance of COMASuplFallBackHandler

		*/ 

		static COMASuplFallBackHandler* NewL(CSuplSettingsInternal& aSettings);

		/**

		* Destructor.

		*/

		~COMASuplFallBackHandler();

	public :		

		/**

		* CreateConnection Method. Creates the Socket required to

		* communicate with the SLP

		* @since Series 60 3.1

		* @param None

		* @return None

		*/ 

		TInt GetNextSLPAddressL(TInt64& aSLPId,TDes& aHslpToBeUsedAddress,TDes& aIAPName,TBool& aTls,

		                        TBool& aPskTls,TInt aLastErrorCode,TBool& aIsIapDialogShown);

		void SetFallBackParametersL(const TDesC& aClientProvidedHSLPAddress,TBool aFallBackAllowed);

		void ReadSLPListForNIL(const TDesC& aClientProvidedHSLPAddress);

		void UpdateSLPListForHomeUsage(TBool aHomeNetwork);

	private : 

		//Constuctor

		COMASuplFallBackHandler(CSuplSettingsInternal& aSettings);

		/**

		* By default Symbian 2nd phase constructor is private.

		*/

		void ConstructL();

    private:

    void ReadSLPListL(const TDesC& aClientProvidedHSLPAddress);	

    TBool CheckErrorCodeL(TInt aLastErrorCode);	

    void GenerateHslpAddressFromIMSIL();

    void PrintSLPList();

    void GetFirstEnabledSLPL();

  	protected :  // Functions from CActive

      /**

      * From CActive 

      * To handle request completion

      */

      void RunL();

      /**

      * From CActive 

      * To cancel the asynchronous requests

      */

   		void DoCancel();  

      /**

      * From CActive 

      * To handle errors in asynchronous requests

      */

   		TInt RunError(TInt aError);

	private : //Data

  	    //SUPLSettings

  	    CSuplSettingsInternal& iSuplSettings;

  	    //Trace Utility

  	    COMASuplTrace* iTrace;

  	    TInt iCurrentServerCounter;

  	    TBool iIsFallBackAllowed;

  	    CArrayFixFlat<TSLPDetails>* iSLPList;

  	    TBool iTLSAuthenticationFailed;

  	    RBuf iGenratedHslpAddress;

  	    RBuf iDefaultIAPName;

  	    TInt iErrorCode;

  	    TTime iFallBackStartTime;

  	    TInt iAllowedFallBackTimerValue;

};

#endif //C_COMASUPLFALLBACKHANDLER_H