/*

* 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 doing asynchronous service.

*

*/

#ifndef C_COMASUPLCONNREQUESTOR_H

#define C_COMASUPLCONNREQUESTOR_H

#include <e32base.h>

#include "epos_csuplconnection.h"

#include "epos_comasupluicompletionobserver.h" 

#include "epos_momasupldialogtimeoutnotifier.h"

class CSuplCommunicationManager;

class MOMASuplConnObserver;

class CSuplSettings;

class COMASuplTrace;

class COMASuplFallBackHandler;

class COMASUPLProtocolManager2;

class COMASuplDialogTimer;

/**

 *  Class for doing asynchronous service  i.e. used for Sending Packet to Socket.	

 *

 *  @lib eposomasuplprotocolhandler.lib

 *  @since S60 v3.1

 */

{

	enum TConnState

	    {

		  EConnecting,

		  EConnectionDone,

	      ESending,

	      EInitilizeSetting,

		  EInitialState

		};

	public :  // Constructor 

		/**

		* NewL Method.

		* @since Series 60 3.1

		* @param MEventCompletionObserver

		* @return Instance of COMASuplAOOperation

		*/ 

		/*

		static COMASuplConnRequestor* NewL(CSuplCommunicationManager& aCommMgr, const TDesC8& aHostAddr,

										   TInt aIAPId, TUint aPort, MOMASuplConnObserver& aObserver);

		*/										   

		static COMASuplConnRequestor* NewL(CSuplCommunicationManager& aCommMgr,COMASUPLProtocolManager2& aProtoMgr,TUint aPort,MOMASuplConnObserver& aObserver);										   

		/**

		* Destructor.

		*/

		~COMASuplConnRequestor();

	public :		

		/**

		* CreateConnection Method. Creates the Socket required to

		* communicate with the SLP

		* @since Series 60 3.1

		* @param None

		* @return None

		*/ 

		void CreateConnectionL(TBool aTriggerSession);

		/**

		 * CreateConnection Method Overload. Creates the Socket required to

		 * communicate with the SLP. Called in case of NI case.

		 * @since 

		 * @param None

		 * @return None

		 */ 

		void CreateConnectionL(TInt aDialogTimeOutDelay, TBool aTriggerSession);

		/**

		* SendPacket Method.

		* @since Series 60 3.1

		* @param aConnection, for sending Packet

		* @param aPacket, Packet

		* @return None

		*/ 

		void SendPacket(const TDesC8& aPacket);

		/**

		* OpenConnection Method.,It Connects to SLP

		* @since Series 60 3.1

		* @param None

		* @return None

		*/ 

		void OpenConnection();

		/**

		* ListenToMessages Method.Start listening to Messages

		* @since Series 60 3.1

		* @param None

		* @return None

		*/ 

		void ListenToMessages();

		/**

		* CloseConnection Method.Destroys the socket to SLP

		* @since Series 60 3.1

		* @param None

		* @return None

		*/ 

		void CloseConnection();

		/**

		* GetLocalIPAddress Method.

		* @since Series 60 3.1

		* @param aAddress, TInetAddr 

		* @return None

		*/ 

		TInt GetLocalIPAddress(TInetAddr& aAddress);

		/**

		* GetLocalIPAddress Method.

		* @since Series 60 3.1

		* @param aAddress, TInetAddr 

		* @return None

		*/ 

		void CancelReadOperation();

		/**

		* SetIAPID Method.

		* @since Series 60 3.1

		* @param aIAPID, 

		* @return None

		*/ 

		void SetIAPID(TInt aIAPID);

	/**

		* IsHslpGenerated Method,checks if Hslp address is NULL. 

		* @since S60 3.1

		* @param None

		* @return None

		*/ 

		void IsHslpGenerated(TBool aIsGenerated);

       /**

		* IsHslpAddrFromImsiUsed Method,checks if Hslp address is used for connection is from IMSI. 

		* @since S60 3.2

		* @param None

		* @return None

		*/ 

        TBool IsHslpAddrFromImsiUsed();

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

        void GetUsedServerAddress(TDes& aHSLPAddressUsed);

        TBool ConvertIAPNameToIdL(const TDesC& aIAPName, TUint32& aIAPId);

        void UpdateNetInfo(const TTime& aLastTimeUsed,TInt& aMcc,TInt& aMnc,

							              TInt& aCid,TInt& aLac,TInt& aType,TInt& aErrorCode);

				void UseDefaultServerL();	            

				void UseServerL(const TDesC& aClientProvidedHSLPAddress);  

				void UpdateSLPListForHomeUsage(TBool aHomeNetwork);

        TUint GetPortNumber();

	private : 

		//Constuctor

		/*

		COMASuplConnRequestor(CSuplCommunicationManager& aCommMgr, 

							  TInt aIAPId, TUint aPort, MOMASuplConnObserver& aObserver);

		*/							  

		COMASuplConnRequestor(CSuplCommunicationManager& aCommMgr,

							   COMASUPLProtocolManager2& aProtoMgr,

					  			TUint aPort,

					  		   MOMASuplConnObserver& aObserver);

		/**

		* By default Symbian 2nd phase constructor is private.

		*/

		//void ConstructL(const TDesC8& aHostAddr);

		void ConstructL();

	private :		

		/**

		* InitilizeSetting Method,Initilize Supl Settings. 

		* @since S60 3.1

		* @param None

		* @return None

		*/ 

		void InitilizeSetting();

		void SaveAccessPoint(const TDesC& aIapName);

  	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

			//Connection State

			TConnState iState;

			// Communication Manager Reference

			CSuplCommunicationManager& iCommMgr;

           // Reference to protocol manager to invoke settings UI

            COMASUPLProtocolManager2& iProtocolManager;

			// Connection Object

			CSuplConnection *iConnection;

			// A String buffer holding the IP Address in String Format

			TBuf <KMaxHostAddressLen> iHostAddress;

			// An unsigned integer hodling the port with which 

			// connection has to be made

			TUint iPort;

			// IAP ID

			TUint32 iIAPId;

			// TLS

			TBool iTls;

			// PSKTLS

			TBool iPskTls;

			// Active Object Observer

			MOMASuplConnObserver& iObserver;      

			//For trying for once with newly generated HSLP.

			TBool iTLSAuthenticationFailed;

			//SUPLSettings

			CSuplSettingsInternal *iSuplSettings;

			//Trace Utility

			COMASuplTrace* iTrace;

			TBool iIsHSLPGenerated;

            TBool iHslpAddrFromImsiUsed;

            TInt iLastConnectionError;

            COMASuplFallBackHandler* iFallBackHandler;

            TBool iIsSettingInitilized;

            TInt64 iCurrentSLPId;

};

#endif //C_COMASUPLCONNREQUESTOR_H