// 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          : CSIPAuthenticateHeaderParams.cpp

// Part of       : SIP Codec

// Version       : SIP/6.0 

//

#include "CSIPAuthenticateHeaderParams.h"

#include "sipcodecerr.h"

#include "sipstrings.h"

#include "sipstrconsts.h"

#include "SIPSyntaxCheck.h"

#include "uri8.h"

#include "CSIPTokenizer.h"

#include "sipcodecutils.h"

// Yahoo uses this invalid character in its authentication:

const TInt KExtraYahooChr = 2; 

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

// CSIPAuthenticateHeaderParams::NewL

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

//

CSIPAuthenticateHeaderParams* CSIPAuthenticateHeaderParams::NewL(

    const CSIPAuthenticateHeaderParams& aParams)

	{

	CSIPAuthenticateHeaderParams* self = 

	    CSIPAuthenticateHeaderParams::NewLC (aParams);

	CleanupStack::Pop(self);

	return self;

	}

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

// CSIPAuthenticateHeaderParams::NewLC

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

//

CSIPAuthenticateHeaderParams* 

CSIPAuthenticateHeaderParams::NewLC (const CSIPAuthenticateHeaderParams& 

									  aParams)

	{

	CSIPAuthenticateHeaderParams* self = 

        new(ELeave)CSIPAuthenticateHeaderParams;

	CleanupStack::PushL(self);

	self->CSIPParamContainerBase::ConstructL (aParams);

	return self;

	}

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

// CSIPAuthenticateHeaderParams::CSIPAuthenticateHeaderParams

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

//

CSIPAuthenticateHeaderParams::CSIPAuthenticateHeaderParams ()

 : CSIPParamContainerBase(',')

	{

	}

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

// CSIPAuthenticateHeaderParams::~CSIPAuthenticateHeaderParams

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

//

CSIPAuthenticateHeaderParams::~CSIPAuthenticateHeaderParams ()

	{

	}

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

// CSIPAuthenticateHeaderParams::InternalizeL

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

//

CSIPAuthenticateHeaderParams* CSIPAuthenticateHeaderParams::InternalizeL(

    RReadStream& aReadStream)

	{

	CSIPAuthenticateHeaderParams* self = 

	    new(ELeave)CSIPAuthenticateHeaderParams;

	CleanupStack::PushL(self);

	self->DoInternalizeL(aReadStream);

	CleanupStack::Pop(self);

	return self;

	}

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

// CSIPAuthenticateHeaderParams::AddQuotesWhenEncoding

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

//	

TBool CSIPAuthenticateHeaderParams::AddQuotesWhenEncoding(

    RStringF aParamName) const

    {

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

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

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

	    {

	    return ETrue;

	    }

	return EFalse;

    }

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

// CSIPAuthenticateHeaderParams::CheckAndUpdateParamL

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

//	

void CSIPAuthenticateHeaderParams::CheckAndUpdateParamL(RStringF aName,

                                                        TBool aHasValue,

                                                        TPtrC8& aValue) const

    {	

	// realm, nonce, opaque

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

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

		{

		RemoveQuotes(aValue);

	    if (!SIPSyntaxCheck::QuotedStringValue(aValue))

	        {

			User::Leave(KErrSipCodecAuthenticationHeader);

	        }

		return;

		}

	// nonce, cnonce

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

		{

		RemoveQuotes(aValue);

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

	        {

			User::Leave(KErrSipCodecAuthorizationHeader);

	        }

		return;

		}		

	// algorithm, stale

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

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

		{

		RemoveQuotes(aValue);

	    if (!SIPSyntaxCheck::Token(aValue))

	        {

			User::Leave(KErrSipCodecAuthenticationHeader);

	        }

		return;

		}		

	// qop

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

		{

        if (!SIPSyntaxCheck::QuotedTokenWithComma(aValue))

			{

			User::Leave(KErrSipCodecAuthenticationHeader);

			}

		return;

		}

	// domain

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

		{

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

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

            {

		    TUriParser8 parser;

            TPtrC8 valueWithoutQuotes;

            TInt error = 0;

            if(SIPCodecUtils::ValueWithoutQuotes

                                (tokenizer->Tokens()[i], valueWithoutQuotes) 

                                != KErrNone)

                {

                User::Leave(KErrSipCodecAuthenticationHeader);

                }

            error = parser.Parse(valueWithoutQuotes);

            if ( error == KErrNoMemory )

			    {

			    User::Leave(KErrNoMemory);

			    }

            if ( error != KErrNone)

			    {

			    User::Leave(KErrSipCodecAuthenticationHeader);

			    }

            }

        CleanupStack::PopAndDestroy(tokenizer);

		return;

		}

	// other

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

		{

		User::Leave(KErrSipCodecAuthenticationHeader);

		}

    if (aHasValue &&

        !SIPSyntaxCheck::Token(aValue) &&

		!SIPSyntaxCheck::QuotedString(aValue))

		{

		User::Leave(KErrSipCodecAuthenticationHeader);

		} 

    }