/*

* 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: 

*

*/

#include "t_wlanscaninfodata.h"

//class CWlanScanInfo

#include <wlanmgmtclient.h> 

#include <e32cmn.h>

/*@{*/

//LITs from the ini

_LIT(KSsidParam,					"DEFAULT_SSID_Ssid");

_LIT(KUid,							"WlanScanUid");

/*@}*/

/*@{*/

//LIT's for the commands

_LIT(KCmdNewL,						"NewL");

_LIT(KCmdDestructor,				"~");

_LIT(KCmdInformationElement,		"InformationElement");

/*@}*/

/**

 * Two phase constructor

 *

 * @leave	system wide error

 */

CT_WlanScanInfoData* CT_WlanScanInfoData::NewL()

	{

	CT_WlanScanInfoData* ret = new(ELeave) CT_WlanScanInfoData();

	CleanupStack::PushL(ret);

	ret->ConstructL();

	CleanupStack::Pop(ret);

	return ret;

	}

/**

 * Public destructor

 */

CT_WlanScanInfoData::~CT_WlanScanInfoData()

	{

	DestroyData();

	}

/**

 * Private constructor. First phase construction

 */

CT_WlanScanInfoData::CT_WlanScanInfoData()

:	iData(NULL),

	iScanInfoInstanceIdentifier(KNullUid)

	{

	}

/**

 * Second phase construction

 *

 * @internalComponent

 *

 * @return	N/A

 *

 * @pre		None

 * @post	None

 *

 * @leave	system wide error

 */

void CT_WlanScanInfoData::ConstructL()

	{

	}

/**

 * Return a pointer to the object that the data wraps

 *

 * @return	pointer to the object that the data wraps

 */

TAny* CT_WlanScanInfoData::GetObject()

	{

	return iData;

	}

/**

 * Process a command read from the Ini file

 * @param aCommand 			The command to process

 * @param aSection			The section get from the *.ini file of the project T_Wlan

 * @param aAsyncErrorIndex	Command index dor async calls to returns errors to

 * @return TBool			ETrue if the command is process

 * @leave					system wide error

 */

TBool CT_WlanScanInfoData::DoCommandL(const TTEFFunction& aCommand, const TTEFSectionName& aSection, const TInt /*aAsyncErrorIndex*/)

	{

	TBool ret = ETrue;

	if(aCommand == KCmdNewL)

		{

		DoCmdNewL(aSection);

		}

	else if(aCommand == KCmdDestructor)

		{

		DoCmdDestructor();

		}

	else if(aCommand == KCmdInformationElement)

		{

		DoCmdInformationElement(aSection);		

		}

	else

		{

		ret = EFalse;

		ERR_PRINTF1(_L("Unknown command"));

		}

	return ret;

	}

/**

 * Create an instance of CWlanScanInfo

 * @param

 * @return

 */

void CT_WlanScanInfoData::DoCmdNewL(const TTEFSectionName& aSection)

	{

	INFO_PRINTF1(_L("*START* CT_WlanScanInfoData::DoCmdNewL"));

    DestroyData();

	TBool dataOk = ETrue;

    TInt wsUid;

    if(!GetHexFromConfig(aSection, KUid, wsUid ))

    	{

    	ERR_PRINTF2(_L("Error in getting parameter %S from INI file"), &KUid);

		SetBlockResult(EFail);

		dataOk = EFalse;

    	}

    if (dataOk)

    	{

        const TUid WsUid = {wsUid};       

        TAny* interface = NULL;

        TRAPD(err, interface = REComSession::CreateImplementationL( WsUid, iScanInfoInstanceIdentifier ));

        if(err == KErrNone)

        	{

        	iData = reinterpret_cast<CWlanScanInfo*>( interface );

            if(iData == NULL)

            	{

            	ERR_PRINTF1(_L("CT_WlanScanInfoData::DoCmdNewL() Fail"));

            	SetBlockResult(EFail);

            	}

        	}

        else

    		{

    		ERR_PRINTF2(_L("Create Implementation left with error %d"), err);

    		SetError(err);

    		}	

    	}

    INFO_PRINTF1(_L("*END* CT_WlanScanInfoData::DoCmdNewL"));

	}

/**

 * Destructor for CWlanScanInfo

 * @param

 * @return

 */

void CT_WlanScanInfoData::DoCmdDestructor()

	{

	INFO_PRINTF1(_L("*START* CT_WlanScanInfoData::DoCmdDestructor"));

	DestroyData();

	INFO_PRINTF1(_L("*END* CT_WlanScanInfoData::DoCmdDestructor"));

	}

/**

 * called from DoCmdDestructor for destroy the object CWlanScanInfo

 * @param

 * @return

 */

void CT_WlanScanInfoData::DestroyData()

	{	

	// Cannot use "delete" directly because we use a member variable as an

	// ECom instance identifier	

	REComSession::DestroyedImplementation( iScanInfoInstanceIdentifier );

	iData = NULL;

	}

/**

 * Review if the IAP given in the ini file match with some Wireless Local Area Network (SelectScanInfo).

 * @param aSection				Section in the ini file for this command

 * @return

 */

void CT_WlanScanInfoData::DoCmdInformationElement(const TTEFSectionName& aSection)

	{

	INFO_PRINTF1(_L("*START* CT_WlanScanInfoData::DoCmdInformationElement"));

	TBool dataOk = ETrue;

	TPtrC aSsid;

	if(!GetStringFromConfig(aSection,KSsidParam, aSsid))

		{

		ERR_PRINTF2(_L("Error in getting parameter %S from INI file"), &KSsidParam);        

        SetBlockResult(EFail);

        dataOk = EFalse;

		}

	if(dataOk)

		{

		TInt err(KErrNone);	

		// Scan info gives data as "information elements"

		TUint8 ieLen(0);

		const TUint8* ieData;

		TWlanSsid ssid8;

		TBuf<KWlanMaxSsidLength> ssid;

		TBool match = EFalse;

	    INFO_PRINTF2(_L("SSID to be checked: %S"),&aSsid);

		for( iData->First(); !iData->IsDone(); iData->Next() )

	    	{

	        INFO_PRINTF1(_L("found scan info"));

			err = KErrNotReady;

			// Information Element ID for SSID as specified in 802.11.

			const TUint8 KWlan802Dot11SsidIE(0);

	    	err = iData->InformationElement( KWlan802Dot11SsidIE, ieLen, &ieData );

	        if(err != KErrNone)

	        	{

	        	ERR_PRINTF2(_L("CScanInfo::InformationElement err: [%d]"),err);

				SetError(err);

				break;

	        	}

	    	if(ieLen)

				{

				ssid8.Copy( ieData, ieLen );

				ssid.Copy( ssid8 );				

	            INFO_PRINTF2(_L("Current information element SSID: %S"),&ssid);

				// check if this is an expected SSID

				if( aSsid.Compare( ssid ) == 0 ) 

					{

					INFO_PRINTF1(_L("SSID match!"));					

					match = ETrue;

					break;

					}

				}

	    	}

		if (err == KErrNone && !match)

			{

			ERR_PRINTF2(_L("Given SSID %S NOT FOUND!"),&aSsid);

			SetBlockResult(EFail);

			}

		}

	INFO_PRINTF1(_L("*END* CT_WlanScanInfoData::DoCmdInformationElement"));

	}