// 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:

// Name          : CSIPRAckHeader.cpp

// Part of       : SIP Codec

// Version       : SIP/4.0 

//

#include "siprackheader.h"

#include "sipcodecerr.h"

#include "SIPSyntaxCheck.h"

#include "sipstrings.h"

#include "sipstrconsts.h"

#include "sipcodecutils.h"

#include "_sipcodecdefs.h"

const TInt KMaxTRealLength(32);

const TInt KSpace = 32;

_LIT8(KTUintFormat, "%u");

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

// CSIPRAckHeader::DecodeL

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

//

EXPORT_C CSIPRAckHeader* CSIPRAckHeader::DecodeL(const TDesC8& aValue)

	{

    CSIPRAckHeader* header = new (ELeave) CSIPRAckHeader;

    CleanupStack::PushL(header);

    header->ParseL(aValue);

    CleanupStack::Pop(header);

    return header;

	}

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

// CSIPRAckHeader::NewL

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

//

EXPORT_C CSIPRAckHeader* CSIPRAckHeader::NewL(TUint aSeq,

                                             TUint aCSeqNum,

                                             RStringF aMethod)

    {

    CSIPRAckHeader* self = CSIPRAckHeader::NewLC(aSeq, aCSeqNum, aMethod);

    CleanupStack::Pop(self);

    return self;

    }

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

// CSIPRAckHeader::NewLC

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

//

EXPORT_C CSIPRAckHeader* CSIPRAckHeader::NewLC(TUint aSeq,

                                              TUint aCSeqNum,

                                              RStringF aMethod)

    {

    CSIPRAckHeader* self = new (ELeave) CSIPRAckHeader(aSeq, aCSeqNum);

    CleanupStack::PushL(self);

    self->ConstructL(aMethod);

    return self;

    }

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

// CSIPRAckHeader::CSIPRAckHeader

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

//

CSIPRAckHeader::CSIPRAckHeader()

	{

	}

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

// CSIPRAckHeader::CSIPRAckHeader

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

//

CSIPRAckHeader::CSIPRAckHeader(TUint aSeq, TUint aCSeqNum)

    {

    SetSeq(aSeq);

    SetCSeqNum(aCSeqNum);

    }

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

// CSIPRAckHeader::~CSIPRAckHeader

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

//

EXPORT_C CSIPRAckHeader::~CSIPRAckHeader()

    {

    iMethod.Close();

    }

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

// CSIPRAckHeader::ConstructL

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

//

void CSIPRAckHeader::ConstructL(RStringF aMethod)

    {

    SetMethodL(aMethod);

    }

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

// CSIPRAckHeader::ConstructL

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

//

void CSIPRAckHeader::ConstructL(const CSIPRAckHeader& aRAckHeader)

    {

    SetSeq(aRAckHeader.Seq());

    SetCSeqNum(aRAckHeader.CSeqNum());

    SetMethodL(aRAckHeader.Method());

    }

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

// CSIPRAckHeader::Seq

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

//

EXPORT_C TUint CSIPRAckHeader::Seq() const

    {

    return iSeq;

    }

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

// CSIPRAckHeader::SetSeq

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

//

EXPORT_C void CSIPRAckHeader::SetSeq(TUint aSeq)

    {

    iSeq = aSeq;

    }

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

// CSIPRAckHeader::CSeqNum

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

//

EXPORT_C TUint CSIPRAckHeader::CSeqNum() const

    {

    return iCSeqNum;

    }

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

// CSIPRAckHeader::SetCSeqNum

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

//

EXPORT_C void CSIPRAckHeader::SetCSeqNum(TUint aCSeqNum)

    {

    iCSeqNum = aCSeqNum;

    }

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

// CSIPRAckHeader::Method

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

//

EXPORT_C RStringF CSIPRAckHeader::Method() const

    {

    return iMethod;

    }

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

// CSIPRAckHeader::SetMethodL

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

//

EXPORT_C void CSIPRAckHeader::SetMethodL(RStringF aMethod)

    {

    SetMethodL(aMethod.DesC());

    }

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

// CSIPRAckHeader::SetMethodL

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

//

void CSIPRAckHeader::SetMethodL(const TDesC8& aMethod)

    {

    RStringF tmpString = 

        SIPCodecUtils::CheckAndCreateTokenL(aMethod, KErrSipCodecSIPMethod);

	iMethod.Close();

	iMethod = tmpString;

    }

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

// CSIPRAckHeader::InternalizeValueL

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

//

EXPORT_C CSIPHeaderBase* 

CSIPRAckHeader::InternalizeValueL(RReadStream& aReadStream)

    {

    CSIPRAckHeader* self = new(ELeave) CSIPRAckHeader;

    CleanupStack::PushL(self);

    self->DoInternalizeValueL(aReadStream);

    CleanupStack::Pop(self);

    return self;

    }

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

// CSIPRAckHeader::CloneL

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

//

EXPORT_C CSIPHeaderBase* CSIPRAckHeader::CloneL() const

    {

    CSIPRAckHeader* clone = new(ELeave) CSIPRAckHeader;

    CleanupStack::PushL(clone);

    clone->ConstructL(*this);

    CleanupStack::Pop(clone);

    return clone;

    }

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

// CSIPRAckHeader::Name

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

//

EXPORT_C RStringF CSIPRAckHeader::Name() const

    {

    return SIPStrings::StringF(SipStrConsts::ERAckHeader);

    }

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

// CSIPRAckHeader::ToTextValueL

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

//

EXPORT_C HBufC8* CSIPRAckHeader::ToTextValueL() const

    {

	TBuf8<KMaxTRealLength> seqAsText;

	seqAsText.Format(KTUintFormat, iSeq);

    TBuf8<KMaxTRealLength> cSeqAsText;

    cSeqAsText.Format(KTUintFormat, iCSeqNum);

    // seq+SP+cseq+SP

	TUint encodedLength = seqAsText.Length() + 1 + cSeqAsText.Length() + 1;

	TPtrC8 method(iMethod.DesC());

	encodedLength += method.Length(); 

	HBufC8* encodingResult = HBufC8::NewL (encodedLength);

	TPtr8 encodingResultPtr = encodingResult->Des();

	encodingResultPtr.Append(seqAsText);

	encodingResultPtr.Append(KSpace);

    encodingResultPtr.Append(cSeqAsText);

    encodingResultPtr.Append(KSpace);

	encodingResultPtr.Append(method);

	return encodingResult;

    }

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

// CSIPRAckHeader::PreferredPlaceInMessage

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

//

CSIPHeaderBase::TPreferredPlace CSIPRAckHeader::PreferredPlaceInMessage() const

    {

    return CSIPHeaderBase::EMiddle;

    }

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

// CSIPRAckHeader::BaseDecodeL

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

//

RPointerArray<CSIPHeaderBase> 

CSIPRAckHeader::BaseDecodeL(const TDesC8& aValue)

    {

	CSIPRAckHeader* header = DecodeL(aValue);

	CleanupStack::PushL(header);

	RPointerArray<CSIPHeaderBase> headers;

	User::LeaveIfError (headers.Append(header));

	CleanupStack::Pop(header);

	return headers;

    }

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

// CSIPRAckHeader::ExternalizeValueL

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

//

void CSIPRAckHeader::ExternalizeValueL (RWriteStream& aWriteStream) const

    {

	aWriteStream.WriteUint32L(this->Seq());

    aWriteStream.WriteUint32L(this->CSeqNum());

	TPtrC8 method(iMethod.DesC());

	aWriteStream.WriteUint32L(method.Length());

	if (method.Length() > 0)

		{

		aWriteStream.WriteL(method);

		}

    }

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

// CSIPRAckHeader::DoInternalizeValueL

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

//

void CSIPRAckHeader::DoInternalizeValueL(RReadStream& aReadStream)

    {

	iSeq = aReadStream.ReadUint32L();

    iCSeqNum = aReadStream.ReadUint32L();

    HBufC8* method = SIPCodecUtils::ReadDescFromStreamL(aReadStream);

    CleanupStack::PushL(method);

    iMethod = SIPStrings::Pool().OpenFStringL(*method);

    CleanupStack::PopAndDestroy(method);

    }

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

// CSIPRAckHeader::ParseL

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

//

void CSIPRAckHeader::ParseL(const TDesC8& aValue)

    {

    __ASSERT_ALWAYS(aValue.Length() > 0,

        User::Leave(KErrSipCodecRAckHeader));

	TLex8 lex(aValue);

	if (!SIPSyntaxCheck::UInt(lex.NextToken(),iSeq))

		{

		User::Leave (KErrSipCodecRAckHeader);

		}

	lex.SkipSpace();

    if (!SIPSyntaxCheck::UInt(lex.NextToken(), iCSeqNum))

        {

        User::Leave (KErrSipCodecRAckHeader);

        }

    lex.SkipSpace();

	TPtrC8 method(lex.Remainder());

	SetMethodL(method);

    }