// 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          : CSIPViaHeader.cpp

// Part of       : SIP Codec

// Version       : SIP/4.0 

//

#include "sipviaheader.h"

#include "CSIPViaHeaderParams.h"

#include "CSIPTokenizer.h"

#include "siphostport.h"

#include "sipcodecerr.h"

#include "SIPSyntaxCheck.h"

#include "sipstrings.h"

#include "sipstrconsts.h"

#include "sipcodecutils.h"

#include "_sipcodecdefs.h"

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

// CSIPViaHeader::DecodeL

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

//

EXPORT_C RPointerArray<CSIPViaHeader> 

CSIPViaHeader::DecodeL (const TDesC8& aValue)

	{

	RPointerArray<CSIPHeaderBase> baseheaders = BaseDecodeL(aValue);

	CSIPHeaderBase::PushLC(&baseheaders);

	RPointerArray<CSIPViaHeader> viaheaders;

	CleanupClosePushL(viaheaders);

	TInt count = baseheaders.Count();

	for (TInt i=0; i<count; i++)

		{

		CSIPViaHeader* via = static_cast<CSIPViaHeader*>(baseheaders[i]);

		viaheaders.AppendL(via);

		}

	CleanupStack::Pop(2); // viaheaders, baseheaders

	baseheaders.Close();

	return viaheaders;

	}

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

// CSIPViaHeader::NewL

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

//

EXPORT_C CSIPViaHeader* CSIPViaHeader::NewL (RStringF aTransport,

											 CSIPHostPort* aSentByHostPort)

	{

	CSIPViaHeader* self = CSIPViaHeader::NewLC (aTransport,aSentByHostPort);

	CleanupStack::Pop(self);

	return self;

	}

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

// CSIPViaHeader::NewLC

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

//

EXPORT_C CSIPViaHeader* CSIPViaHeader::NewLC (RStringF aTransport,

											  CSIPHostPort* aSentByHostPort)

	{

	CSIPViaHeader* self = new(ELeave)CSIPViaHeader;

	CleanupStack::PushL(self);

	self->ConstructL(aTransport,aSentByHostPort);

	return self;

	}

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

// CSIPViaHeader::CSIPViaHeader

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

//

CSIPViaHeader::CSIPViaHeader()

 : CSIPParameterHeaderBase(';')

	{

	}

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

// CSIPViaHeader::ConstructL

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

//

void CSIPViaHeader::ConstructL()

	{

	iSentProtocolName = SIPStrings::StringF(SipStrConsts::ESIP);

	iSentProtocolVersion = 

		SIPStrings::StringF(SipStrConsts::EDefaultVersionNumber);

	iParams = new(ELeave)CSIPViaHeaderParams;

	}

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

// CSIPViaHeader::ConstructL

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

//

void CSIPViaHeader::ConstructL(RStringF aTransport,

							   CSIPHostPort* aSentByHostPort)

	{

	__ASSERT_ALWAYS(aSentByHostPort, User::Leave(KErrArgument));

	ConstructL();

	SetTransportL(aTransport);

	iSentByHostPort = aSentByHostPort;

	}

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

// CSIPViaHeader::ConstructL

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

//

void CSIPViaHeader::ConstructL (const CSIPViaHeader& aViaHeader)

	{

	iSentProtocolName = aViaHeader.SentProtocolName().Copy();

	iSentProtocolVersion = aViaHeader.SentProtocolVersion().Copy();

	iTransport = aViaHeader.Transport().Copy();	

	iParams = CSIPViaHeaderParams::NewL(*(aViaHeader.iParams));

	iSentByHostPort = CSIPHostPort::NewL(*(aViaHeader.iSentByHostPort));

	}

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

// CSIPViaHeader::~CSIPViaHeader

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

//

EXPORT_C CSIPViaHeader::~CSIPViaHeader()

	{

	delete iSentByHostPort;

	delete iParams;

	iTransport.Close();	

	iSentProtocolVersion.Close();

	iSentProtocolName.Close();

	}

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

// CSIPViaHeader::CloneL

// From CSIPHeaderBase:

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

//

EXPORT_C CSIPHeaderBase* CSIPViaHeader::CloneL () const

	{

	CSIPViaHeader* clone = new(ELeave)CSIPViaHeader;

	CleanupStack::PushL(clone);

	clone->ConstructL(*this);

	CleanupStack::Pop(clone);

	return clone;

	}

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

// CSIPViaHeader::operator==

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

//

EXPORT_C TBool CSIPViaHeader::operator==(const CSIPViaHeader& aViaHeader)

	{

	if (iTransport != aViaHeader.Transport())

		{

		return EFalse;

		}

	if (iSentProtocolName != aViaHeader.iSentProtocolName)

		{

		return EFalse;

		}

	if (iSentProtocolVersion != aViaHeader.iSentProtocolVersion)

		{

		return EFalse;

		}

	if (!(*iSentByHostPort == *aViaHeader.iSentByHostPort))

		{

		return EFalse;

		}

	return (*iParams == *(aViaHeader.iParams));

	}

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

// CSIPViaHeader::Transport

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

//

EXPORT_C RStringF CSIPViaHeader::Transport () const

	{

	return iTransport;

	}

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

// CSIPViaHeader::SetTransportL

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

//

EXPORT_C void CSIPViaHeader::SetTransportL(RStringF aTransport)

	{

	SetTransportL(aTransport.DesC());	

	}

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

// CSIPViaHeader::SentByHostPort

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

//

EXPORT_C CSIPHostPort& CSIPViaHeader::SentByHostPort()

	{

	return *iSentByHostPort;

	}

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

// CSIPViaHeader::SentProtocolName

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

//

EXPORT_C RStringF CSIPViaHeader::SentProtocolName () const

	{

	return iSentProtocolName;

	}

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

// CSIPViaHeader::SentProtocolVersion

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

//

EXPORT_C RStringF CSIPViaHeader::SentProtocolVersion () const

	{

	return iSentProtocolVersion;

	}

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

// CSIPViaHeader::SetSentProtocolVersionL

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

//

EXPORT_C void CSIPViaHeader::SetSentProtocolVersionL(RStringF aVersion)

	{

	SetSentProtocolVersionL(aVersion.DesC());

	}

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

// CSIPViaHeader::ViaTtl

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

//

EXPORT_C TInt CSIPViaHeader::TtlParam() const

	{

	return iParams->IntParamValue(SIPStrings::StringF(SipStrConsts::ETtl));

	}

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

// CSIPViaHeader::SetViaTtlL

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

//

EXPORT_C void CSIPViaHeader::SetTtlParamL (TInt aValue)

	{

	iParams->SetParamL(SIPStrings::StringF(SipStrConsts::ETtl), aValue);

	}

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

// CSIPViaHeader::MoreThanOneAllowed

// From CSIPHeaderBase:

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

//

TBool CSIPViaHeader::MoreThanOneAllowed () const

	{

	return ETrue;

	}

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

// CSIPViaHeader::Name

// From CSIPHeaderBase:

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

//

EXPORT_C RStringF CSIPViaHeader::Name() const

	{

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

	}

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

// CSIPViaHeader::HasCompactName

// From CSIPHeaderBase:

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

//

TBool CSIPViaHeader::HasCompactName () const

	{

	return ETrue;

	}

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

// CSIPViaHeader::CompactName

// From CSIPHeaderBase:

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

//

RStringF CSIPViaHeader::CompactName () const

	{

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

	}

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

// CSIPViaHeader::ExternalizeSupported

// From CSIPHeaderBase:

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

//

EXPORT_C TBool CSIPViaHeader::ExternalizeSupported () const

	{

	return EFalse;

	}

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

// CSIPViaHeader::BaseDecodeL

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

//

RPointerArray<CSIPHeaderBase> CSIPViaHeader::BaseDecodeL (const TDesC8& aValue)

	{

	RPointerArray<CSIPHeaderBase> headers;

	CSIPHeaderBase::PushLC(&headers);

	CSIPTokenizer* tokenizer = CSIPTokenizer::NewLC(aValue, ',');

	for (TInt i=0; i < tokenizer->Tokens().Count(); i++)

		{

		CSIPViaHeader* header = new(ELeave)CSIPViaHeader;

        CleanupStack::PushL(header);

        header->ConstructL();

		header->ParseL(tokenizer->Tokens()[i]);

		headers.AppendL(header);

		CleanupStack::Pop(header);

		}

	CleanupStack::PopAndDestroy(tokenizer);

	CleanupStack::Pop(); // headers 

	return headers;

	}

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

// CSIPViaHeader::PreferredPlaceInMessage

// From CSIPHeaderBase:

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

//

CSIPHeaderBase::TPreferredPlace CSIPViaHeader::PreferredPlaceInMessage () const

	{

	return CSIPHeaderBase::ETop;

	}

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

// CSIPFromToHeader::ToTextMandatoryPartLC

// From CSIPParameterHeaderBase:

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

//

HBufC8* CSIPViaHeader::ToTextMandatoryPartLC () const

    {

    TPtrC8 sentProtocolName(iSentProtocolName.DesC());

	TUint encodedLength = sentProtocolName.Length() + 1; // SLASH

	TPtrC8 sentProtocolVersion(iSentProtocolVersion.DesC());

	encodedLength += sentProtocolVersion.Length() + 1; // SLASH

	TPtrC8 transport(iTransport.DesC());

	encodedLength += transport.Length() + 1; // SP

	HBufC8* encodedSentByHostPort = iSentByHostPort->ToTextLC();

	encodedLength += encodedSentByHostPort->Length(); 

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

	TPtr8 encodingResultPtr = encodingResult->Des();

	encodingResultPtr.Append(sentProtocolName);

	encodingResultPtr.Append('/'); // SLASH

	encodingResultPtr.Append(sentProtocolVersion);

	encodingResultPtr.Append('/'); // SLASH

	encodingResultPtr.Append(transport);

	encodingResultPtr.Append(' '); // SP

	encodingResultPtr.Append(*encodedSentByHostPort);

	CleanupStack::PopAndDestroy(encodedSentByHostPort);

    CleanupStack::PushL (encodingResult);

	return encodingResult;

    }

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

// CSIPViaHeader::ParseMandatoryPartL

// From CSIPParameterHeaderBase:

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

//

void CSIPViaHeader::ParseMandatoryPartL (const TDesC8& aMandatoryPart)

    {

	__ASSERT_ALWAYS (aMandatoryPart.Length()>0,User::Leave(KErrSipCodecViaHeader));

	// sent-protocol

	TInt endPos = 0;

	ParseSentProtocolL(aMandatoryPart,endPos);

	if (endPos >= aMandatoryPart.Length()-1)

        {

        User::Leave (KErrSipCodecViaHeader);

        }

	TLex8 lex(aMandatoryPart.Mid(endPos+1));

	lex.SkipSpace();

	// sent-by

    iSentByHostPort = CSIPHostPort::DecodeL (lex.Remainder());

    }

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

// CSIPViaHeader::Params

// From CSIPParameterHeaderBase:

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

//

const CSIPParamContainerBase& CSIPViaHeader::Params () const

    {

    return *iParams; 

    }

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

// CSIPViaHeader::Params

// From CSIPParameterHeaderBase:

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

//

CSIPParamContainerBase& CSIPViaHeader::Params () 

    {

    return *iParams; 

    }

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

// CSIPViaHeader::ParseSentProtocolL

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

//

void CSIPViaHeader::ParseSentProtocolL (

    const TDesC8& aValue,

    TInt& aLength)

	{

	__ASSERT_ALWAYS (aValue.Length()>0, User::Leave(KErrSipCodecViaHeader));

	TInt length = 0;

	TInt slashPos = aValue.Locate ('/');

	if (slashPos <= 0 || slashPos == aValue.Length()-1)

		{

		User::Leave(KErrSipCodecViaHeader);

		}

	SetSentProtocolNameL(aValue.Left(slashPos));

	length += (slashPos+1);

	TPtrC8 remainder (aValue.Mid(slashPos+1));

	slashPos = remainder.Locate ('/');

	if (slashPos <= 0 || slashPos == remainder.Length()-1)

		{

		User::Leave (KErrSipCodecViaHeader);

		}

	SetSentProtocolVersionL(remainder.Left(slashPos));

	length += (slashPos+1);

	TLex8 lex(remainder.Mid(slashPos+1));

	lex.Mark();

	SetTransportL (lex.NextToken());

	length += lex.Offset();

	aLength = length;

	}

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

// CSIPViaHeader::SetTransportL

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

//

void CSIPViaHeader::SetTransportL(const TDesC8& aTransport)

	{

	HBufC8* tmp = aTransport.AllocLC();

	tmp->Des().Trim();

	tmp->Des().UpperCase();

	if (!SIPSyntaxCheck::Token(*tmp))

		{

		User::Leave(KErrSipCodecViaHeader);

		}

	RStringF tmpString = SIPStrings::Pool().OpenFStringL(*tmp);

	CleanupStack::PopAndDestroy(tmp);		

	iTransport.Close();

	iTransport = tmpString;

	}

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

// CSIPViaHeader::SetSentProtocolVersionL

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

//

void CSIPViaHeader::SetSentProtocolVersionL(const TDesC8& aVersion)

	{	

    RStringF tmp = 

        SIPCodecUtils::CheckAndCreateTokenL(aVersion, KErrSipCodecViaHeader);

	iSentProtocolVersion.Close();

    iSentProtocolVersion = tmp;

	}

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

// CSIPViaHeader::SetSentProtocolNameL

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

//

void CSIPViaHeader::SetSentProtocolNameL (const TDesC8& aName)

	{

    RStringF tmp = 

        SIPCodecUtils::CheckAndCreateTokenL(aName, KErrSipCodecViaHeader);

	iSentProtocolName.Close();

	iSentProtocolName = tmp;        

	}