// Copyright (c) 2004-2009 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        : TTCPMsgState.cpp

// Part of     : ConnectionMgr

// Version     : SIP/4.0

//

#include "TTCPMsgState.h"

#include "MMsgAssemblerContext.h"

// ----------------------------------------------------------------------------

// TTCPMsgState::TTCPMsgState

// ----------------------------------------------------------------------------

//

TTCPMsgState::TTCPMsgState( MMsgAssemblerContext& aMsgAssembler )

	: iMsgAssembler( aMsgAssembler )

	{

	}

// ----------------------------------------------------------------------------

// TTCPMsgState::FindHeaderStartPosition

// ----------------------------------------------------------------------------

//

TInt TTCPMsgState::FindHeaderStartPosition( TDesC8& aData )

	{

	TLex8 lex(aData);

	lex.SkipSpace();

	return lex.Offset();

	}

// ----------------------------------------------------------------------------

// TTCPMsgState::FindHeaderEndPosition

// ----------------------------------------------------------------------------

//

TInt TTCPMsgState::FindHeaderEndPosition( TDesC8& aData )

	{

	_LIT8(KCRLFCRLF, "\r\n\r\n");

	_LIT8(KCRCRLF,   "\r\r\n");

	_LIT8(KLFCRLF,   "\n\r\n");

	TInt endPosition = KErrNotFound;

	TInt cRLFCRLFPosition = aData.Find(KCRLFCRLF); 

	TInt cRCRLFPosition   = aData.Find(KCRCRLF);

	TInt lFCRLFPosition   = aData.Find(KLFCRLF);

	if (cRLFCRLFPosition >= 0) 

		{

		endPosition = cRLFCRLFPosition + KCRLFCRLF().Length();		

		}

	if (cRCRLFPosition >= 0)

		{

		GetHeaderPartEndPosition(cRCRLFPosition,

								 KCRCRLF().Length(),

								 endPosition);

		}

	if (lFCRLFPosition >= 0)

		{

		GetHeaderPartEndPosition(lFCRLFPosition,

								 KLFCRLF().Length(),

								 endPosition);

		}

	return endPosition;

	}

// ----------------------------------------------------------------------------

// TTCPMsgState::GetHeaderPartEndPosition

// ----------------------------------------------------------------------------

//

void TTCPMsgState::GetHeaderPartEndPosition ( TInt  aEndMarkPosition, 

		                                      TInt  aEndMarkLength,  

		                                      TInt& aHeaderEndPosition )

	{

	aEndMarkPosition = aEndMarkPosition + aEndMarkLength;

	if (aHeaderEndPosition > 0)

		{

		if (aEndMarkPosition < aHeaderEndPosition )

			{

			aHeaderEndPosition  = aEndMarkPosition;

			}

		}

	else

		{

		aHeaderEndPosition = aEndMarkPosition;

		}

	}