// Copyright (c) 2007-2009 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          : CSIPAuthorizationHeaderParams.cpp

// Part of       : SIP Codec

// Version       : SIP/6.0 

//

#include <uri8.h>

#include "CSIPAuthorizationHeaderParams.h"

#include "sipcodecerr.h"

#include "SIPSyntaxCheck.h"

#include "sipcodecutils.h"

#include "sipstrings.h"

#include "sipstrconsts.h"

// Yahoo uses this invalid character in its authentication:

const TInt KExtraYahooChr = 2; 

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

// CSIPAuthorizationHeaderParams::NewL

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

//

CSIPAuthorizationHeaderParams* CSIPAuthorizationHeaderParams::NewL(

    const CSIPAuthorizationHeaderParams& aParams)

	{

	CSIPAuthorizationHeaderParams* self = 

        CSIPAuthorizationHeaderParams::NewLC(aParams);

	CleanupStack::Pop(self);

	return self;

	}

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

// CSIPAuthorizationHeaderParams::NewLC

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

//

CSIPAuthorizationHeaderParams* CSIPAuthorizationHeaderParams::NewLC(

    const CSIPAuthorizationHeaderParams& aParams)

	{

	CSIPAuthorizationHeaderParams* self = 

        new(ELeave)CSIPAuthorizationHeaderParams;

	CleanupStack::PushL(self);

	self->CSIPParamContainerBase::ConstructL(aParams);

	return self;

	}

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

// CSIPAuthorizationHeaderParams::CSIPAuthorizationHeaderParams

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

//

CSIPAuthorizationHeaderParams::CSIPAuthorizationHeaderParams ()

 : CSIPParamContainerBase(',')

	{

	}

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

// CSIPAuthorizationHeaderParams::~CSIPAuthorizationHeaderParams

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

//

CSIPAuthorizationHeaderParams::~CSIPAuthorizationHeaderParams ()

	{

	}

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

// CSIPAuthorizationHeaderParams::InternalizeL

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

//

CSIPAuthorizationHeaderParams* CSIPAuthorizationHeaderParams::InternalizeL(

    RReadStream& aReadStream)

	{

	CSIPAuthorizationHeaderParams* self = 

	    new(ELeave)CSIPAuthorizationHeaderParams;

	CleanupStack::PushL(self);

	self->DoInternalizeL(aReadStream);

	CleanupStack::Pop(self);

	return self;

	}	

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

// CSIPAuthorizationHeaderParams::AddQuotesWhenEncoding

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

//	

TBool CSIPAuthorizationHeaderParams::AddQuotesWhenEncoding(

    RStringF aParamName) const

    {

	if (aParamName == SIPStrings::StringF(SipStrConsts::EUserName) ||

		aParamName == SIPStrings::StringF(SipStrConsts::ERealm) ||

	    aParamName == SIPStrings::StringF(SipStrConsts::ENonce) ||		

	    aParamName == SIPStrings::StringF(SipStrConsts::ECNonce) ||

	    aParamName == SIPStrings::StringF(SipStrConsts::EOpaque) ||

	    aParamName == SIPStrings::StringF(SipStrConsts::EResponse) ||

	    aParamName == SIPStrings::StringF(SipStrConsts::EUri) ||

	    aParamName == SIPStrings::StringF(SipStrConsts::EAuts))	

		{

		return ETrue;

		}

    return EFalse;

    }

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

// CSIPAuthorizationHeaderParams::CheckAndUpdateParamL

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

//	

void CSIPAuthorizationHeaderParams::CheckAndUpdateParamL(RStringF aName,

                                                         TBool aHasValue,

                                                         TPtrC8& aValue) const

    {

	// username, realm, nonce, cnonce, opaque

	if (aName == SIPStrings::StringF(SipStrConsts::EUserName) ||

		aName == SIPStrings::StringF(SipStrConsts::ERealm) ||

	    aName == SIPStrings::StringF(SipStrConsts::EOpaque))	

		{

		RemoveQuotes(aValue);

	    if (!SIPSyntaxCheck::QuotedStringValue(aValue))

	        {

			User::Leave(KErrSipCodecAuthorizationHeader);

	        }

		return;

		}

	// nonce, cnonce

	if (aName == SIPStrings::StringF(SipStrConsts::ENonce) ||		

	    aName == SIPStrings::StringF(SipStrConsts::ECNonce))	

		{

		RemoveQuotes(aValue);

	    if (!SIPSyntaxCheck::QuotedStringValue(aValue,KExtraYahooChr))

	        {

			User::Leave(KErrSipCodecAuthorizationHeader);

	        }

		return;

		}	

	//algorithm, message-qop

	if (aName == SIPStrings::StringF(SipStrConsts::EAlgorithm) ||

		aName == SIPStrings::StringF(SipStrConsts::EQop))

		{

		RemoveQuotes(aValue);

        if (!SIPSyntaxCheck::Token(aValue))

			{

			User::Leave(KErrSipCodecAuthorizationHeader);

			}

		return;

		}

	// nonce-count

	if (aName == SIPStrings::StringF(SipStrConsts::ENonceCount))

		{

		const TInt KNonceCountLength = 8;

		if (!SIPSyntaxCheck::HexValue(aValue,KNonceCountLength))

			{

			User::Leave(KErrSipCodecAuthorizationHeader);

			}

		return;

		}

	// dresponse

	if (aName == SIPStrings::StringF(SipStrConsts::EResponse))

		{

		RemoveQuotes(aValue);

	    if (!SIPSyntaxCheck::HexValue(aValue))

	        {

			User::Leave(KErrSipCodecAuthorizationHeader);

			}

		return;

		}

	// uri

	if (aName == SIPStrings::StringF(SipStrConsts::EUri))

		{

		RemoveQuotes(aValue);

		TUriParser8 parser;

		TInt error = 0;

		error = parser.Parse(aValue);

		if ( error == KErrNoMemory )

			{

			User::Leave(KErrNoMemory);

			}

        if ( error != KErrNone)

			{

			User::Leave(KErrSipCodecAuthorizationHeader);

			}

		return;

		}

	// auts

	if (aName == SIPStrings::StringF(SipStrConsts::EAuts))

		{

		RemoveQuotes(aValue);

        if (!SIPSyntaxCheck::Base64Encoded(aValue))

			{

			User::Leave(KErrSipCodecAuthorizationHeader);

			}

		return;

		}

	// extension

	if (!SIPSyntaxCheck::Token(aName.DesC()))

		{

		User::Leave(KErrSipCodecAuthorizationHeader);

		}

    if (aHasValue &&

        !SIPSyntaxCheck::Token(aValue) &&

		!SIPSyntaxCheck::QuotedString(aValue))

		{

		User::Leave(KErrSipCodecAuthorizationHeader);

		}

	}