// 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        : TTCPMsgHeaderEnd.cpp

// Part of     : ConnectionMgr

// Implementation

// Version     : SIP/4.0

//

#include "TTCPMsgHeaderEnd.h"

#include "sipmessage.h"

#include "sipmessageparser.h"

#include "MMsgAssemblerContext.h"

#include "MSIPMsgAssemblerOwner.h"

#include "SipAssert.h"

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

// TTCPMsgHeaderEnd::DataReceivedL

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

//

void TTCPMsgHeaderEnd::DataReceivedL( TPtr8 aData, TUint&  aNextLength )

	{

	// if the header end mark can be found from the received data.

	// parse the header to SIP message.

	TInt endPos = FindHeaderEndPosition( aData );

	// panic if endPos < 0 in debug mode. leaves in release mode.

	__SIP_ASSERT_LEAVE(endPos >= 0, KErrGeneral);

	// get the msg header part from received data, 

	// and parse it to SIP message

	TPtrC8 headerDescriptor = aData.Left( endPos );

	CSIPMessageParser* messageParser = CSIPMessageParser::NewLC();

	HBufC8* headerBuf = headerDescriptor.AllocLC();

	CSIPMessage* message = iMsgAssembler.Message();

	TInt parseErr = messageParser->FromText( headerBuf, &message );

	CleanupStack::Pop( headerBuf );

	headerBuf = NULL;

	CleanupStack::PopAndDestroy(messageParser);

	messageParser = NULL;

#ifdef CPPUNIT_TEST

	if ( parseErr == KErrNoMemory ) 

	    {

	    delete message;

	    iMsgAssembler.DetachMsg();

		User::Leave( parseErr );

	    }

#endif

	// parsing error happens

	if ( parseErr )

		{

		CleanupStack::PushL( message );

		// pass err and message to msg owner

		iMsgAssembler.MsgOwner().MessageCompleteL( message, 

		                                           parseErr, 

		                                           iMsgAssembler.IsSigComp() );

		CleanupStack::Pop( message );

      	message = NULL;

		iMsgAssembler.DetachMsg();

		// reset the state to msg init.

		iMsgAssembler.ChangeState( MMsgAssemblerContext::EMsgInit );

		}

	else

		{	

		iMsgAssembler.SetMessage( message );

		message = NULL;

		// delete the header part from the received data,

		// since the header has been parsed to SIP message

		aData.Delete( 0, endPos );

		// check if the parsed SIP message header contains 

		// content length header and content length > 0

		if ( iMsgAssembler.Message() != 0 && 

		     iMsgAssembler.Message()->HasAnnouncedContentLength() && 

		     iMsgAssembler.Message()->AnnouncedContentLength() != 0 )

			{

			// enter to EMsgContentStart state			

			iMsgAssembler.ChangeState( 

							MMsgAssemblerContext::EMsgContentStart );

			iMsgAssembler.CurrentState().DataReceivedL( aData, aNextLength );

			}

		else  

			{

			// enter EMsgCompleteState	

			iMsgAssembler.ChangeState(MMsgAssemblerContext::EMsgComplete);

			iMsgAssembler.CurrentState().DataReceivedL( aData, aNextLength );

			}

		}

	}