/*

* Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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: 

*

*/

#include <cmssigneridentifier.h> 

#include <asn1dec.h>

#include <asn1enc.h>

//

// Implementation of CCmsSignerIdentifier

//

CCmsSignerIdentifier* CCmsSignerIdentifier::NewL(CPKCS7IssuerAndSerialNumber* aIssuerAndSerialNumber)

	{

	CCmsSignerIdentifier* self = NewLC(aIssuerAndSerialNumber);

	CleanupStack::Pop(self);

	return self;		

	}

CCmsSignerIdentifier* CCmsSignerIdentifier::NewLC(CPKCS7IssuerAndSerialNumber* aIssuerAndSerialNumber)

	{

	if (!aIssuerAndSerialNumber)

		{

		User::Leave(KErrArgument);	

		}

	CCmsSignerIdentifier* self = new (ELeave) CCmsSignerIdentifier(aIssuerAndSerialNumber);

	CleanupStack::PushL(self);

	return self;		

	}

CCmsSignerIdentifier* CCmsSignerIdentifier::NewL(HBufC8* aSubjectKeyIdExt)

	{

	CCmsSignerIdentifier* self = NewLC(aSubjectKeyIdExt);

	CleanupStack::Pop(self);

	return self;

	}

CCmsSignerIdentifier* CCmsSignerIdentifier::NewLC(HBufC8* aSubjectKeyIdExt)

	{

	if (!aSubjectKeyIdExt)

		{

		User::Leave(KErrArgument);	

		}

	CCmsSignerIdentifier* self = new (ELeave) CCmsSignerIdentifier(aSubjectKeyIdExt);

	CleanupStack::PushL(self);

	return self;				

	}

CCmsSignerIdentifier* CCmsSignerIdentifier::NewL(const TDesC8& aRawData)

	{

	CCmsSignerIdentifier* self = NewLC(aRawData);

	CleanupStack::Pop(self);

	return self;					

	}

CCmsSignerIdentifier* CCmsSignerIdentifier::NewLC(const TDesC8& aRawData)

	{

	CCmsSignerIdentifier* self = new (ELeave) CCmsSignerIdentifier();

	CleanupStack::PushL(self);

	self->ConstructL(aRawData);

	return self;					

	}

CCmsSignerIdentifier::CCmsSignerIdentifier(CPKCS7IssuerAndSerialNumber* aIssuerAndSerialNumber) : iSignerIdentifierType(EIssuerAndSerialNumber)

	{

	iIssuerAndSerialNumber=aIssuerAndSerialNumber;

	}

CCmsSignerIdentifier::CCmsSignerIdentifier(HBufC8* aSubjectKeyIdExt) : iSignerIdentifierType(ESubjectKeyIdentifier)

	{

	iSubjectKeyIdExt=aSubjectKeyIdExt;

	}

EXPORT_C CCmsSignerIdentifier::~CCmsSignerIdentifier()

	{

	delete iIssuerAndSerialNumber;

	delete iSubjectKeyIdExt;

	}

CASN1EncBase* CCmsSignerIdentifier::EncodeASN1DERLC() const

	{

	switch (iSignerIdentifierType)

		{

	case EIssuerAndSerialNumber:

		{

		return iIssuerAndSerialNumber->EncodeASN1DERLC();

		}

	case ESubjectKeyIdentifier:

		{

		CASN1EncBase* subKey = CASN1EncOctetString::NewLC(*iSubjectKeyIdExt);

		subKey->SetTag(0);

		return subKey;

		}

	default:

		User::Leave(KErrNotSupported);

		}

	//Should not arrive here

	return NULL;	

	}

EXPORT_C const CPKCS7IssuerAndSerialNumber* CCmsSignerIdentifier::IssuerAndSerialNumber() const

	{

	return iIssuerAndSerialNumber;

	}

EXPORT_C TInt CCmsSignerIdentifier::SignerIdentifierType() const

	{

	return iSignerIdentifierType;

	}

CCmsSignerIdentifier::CCmsSignerIdentifier()

	{

	}

void CCmsSignerIdentifier::ConstructL(const TDesC8& aRawData)

	{

	TASN1DecGeneric decGen(aRawData);

	decGen.InitL();

	if(decGen.Tag() == EASN1Sequence && decGen.Class()==EUniversal)

		{

		iSignerIdentifierType=EIssuerAndSerialNumber;

		iIssuerAndSerialNumber=CPKCS7IssuerAndSerialNumber::NewL(aRawData);			

		}

	else if(decGen.Tag() == 0 && decGen.Class()==EContextSpecific)

			{

			iSignerIdentifierType=ESubjectKeyIdentifier;

			iSubjectKeyIdExt=decGen.GetContentDER().AllocL();				

			}

		 else

			 {

			 User::Leave(KErrArgument);	

			 }	

	}

EXPORT_C const TDesC8& CCmsSignerIdentifier::SubjectKeyIdentifier() const

	{

	return *iSubjectKeyIdExt;

	}