--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cryptoservices/certificateandkeymgmt/pkcs7/cmscertchoice.cpp	Wed Jul 08 11:25:26 2009 +0100
@@ -0,0 +1,172 @@
+/*
+* 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 <cmscertchoice.h>
+#include "pkcs7asn1.h"
+#include <asn1dec.h>
+#include <x509cert.h>
+#include <asn1enc.h>
+#include "cmsutils.h"
+
+//Implementation of CMS Certificate Choice
+
+CCmsCertificateChoice* CCmsCertificateChoice::NewL(const TDesC8& aRawData)
+	{
+	CCmsCertificateChoice* self = new (ELeave) CCmsCertificateChoice();
+	CleanupStack::PushL(self);
+	self->ConstructL(aRawData);
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+CCmsCertificateChoice::~CCmsCertificateChoice()
+	{
+	delete iCertificate;
+	delete iEncodedAttributeCertificate;
+	}
+
+CCmsCertificateChoice::CCmsCertificateChoice()
+	{
+	}
+
+void CCmsCertificateChoice::ConstructL(const TDesC8& aRawData)
+	{
+	TASN1DecGeneric decGen(aRawData);
+	decGen.InitL();
+		
+	if (decGen.Tag()==EASN1Sequence && decGen.Class()==EUniversal)
+		{
+		// x509 certificates
+		iCertificateType=ECertificateX509;
+		iCertificate = CX509Certificate::NewL(aRawData);
+		}
+	else if (decGen.Tag()==1 && decGen.Class()==EContextSpecific)
+			{
+			// Attribute certificate
+			iCertificateType=ECertificateAttribute;
+			CASN1EncEncoding* enc=CASN1EncEncoding::NewLC(aRawData, EASN1Sequence, EUniversal);
+			iEncodedAttributeCertificate=CmsUtils::CreateDEREncodingLC(*enc);
+			CleanupStack::Pop(iEncodedAttributeCertificate);
+			CleanupStack::PopAndDestroy(enc);
+			}
+		else if (decGen.Tag()==0 && decGen.Class()==EContextSpecific)
+				{
+				// extended certificates not supported
+				iCertificateType=ECertificateExtendedCerificate;
+				User::Leave(KErrNotSupported);
+				}
+			else
+				{
+				User::Leave(KErrArgument);	
+				}		
+	}
+
+EXPORT_C const CX509Certificate& CCmsCertificateChoice::Certificate(void) const
+	{
+	return *iCertificate;
+	}
+
+CCmsCertificateChoice* CCmsCertificateChoice::NewLC(const CX509Certificate& aCertificate)
+	{	
+	CCmsCertificateChoice* self = new (ELeave) CCmsCertificateChoice();
+	CleanupStack::PushL(self);
+	self->ConstructL(aCertificate);
+	return self;
+	}
+
+CCmsCertificateChoice* CCmsCertificateChoice::NewL(const CX509Certificate& aCertificate)
+	{
+	CCmsCertificateChoice* self = CCmsCertificateChoice::NewLC(aCertificate);
+	CleanupStack::Pop();
+	return self;
+	}
+
+	
+CCmsCertificateChoice* CCmsCertificateChoice::NewLC(TCertificateType aCertType, const TDesC8& aEncodedCertificate)
+	{		
+	CCmsCertificateChoice* self = new (ELeave) CCmsCertificateChoice();
+	CleanupStack::PushL(self);
+	self->ConstructL(aCertType, aEncodedCertificate);
+	return self;
+	}
+
+CCmsCertificateChoice* CCmsCertificateChoice::NewL(TCertificateType aCertType, const TDesC8& aEncodedCertificate)
+	{
+	CCmsCertificateChoice* self = CCmsCertificateChoice::NewLC(aCertType, aEncodedCertificate);
+	CleanupStack::Pop();
+	return self;
+	}
+
+void CCmsCertificateChoice::ConstructL(const CX509Certificate& aCertificate)
+	{
+	iCertificateType=ECertificateX509;
+	iCertificate=CX509Certificate::NewL(aCertificate);
+	}
+
+void CCmsCertificateChoice::ConstructL(TCertificateType aCertType, const TDesC8& aEncodedCertificate)
+	{
+	iCertificateType=aCertType;
+	if (aCertType==ECertificateAttribute)
+		{
+		iEncodedAttributeCertificate=aEncodedCertificate.AllocL();	
+		}
+	else if (aCertType==ECertificateX509)
+			{
+			iCertificate=CX509Certificate::NewL(aEncodedCertificate);	
+			}
+		 else
+			 {
+			 User::Leave(KErrNotSupported);	
+			 }
+	}
+	
+
+EXPORT_C const HBufC8* CCmsCertificateChoice::AttributeCertificate() const
+	{
+	return iEncodedAttributeCertificate;
+	}
+
+CASN1EncEncoding* CCmsCertificateChoice::EncodeASN1DERLC() const
+	{
+	CASN1EncEncoding* enc(NULL);
+	if (iCertificateType==ECertificateX509)
+		{
+		enc=CASN1EncEncoding::NewLC(iCertificate->Encoding());
+		}
+	else if (iCertificateType==ECertificateAttribute)
+			{
+			TASN1DecGeneric decGen(*iEncodedAttributeCertificate);
+			decGen.InitL();
+			if (decGen.Tag()!=EASN1Sequence)
+				{
+				User::Leave(KErrArgument);	
+				}
+			enc=CASN1EncEncoding::NewLC(*iEncodedAttributeCertificate, 1, EContextSpecific);
+			}
+		else
+			{
+			//Extended Certificate
+			User::Leave(KErrNotSupported);
+			}
+	return enc;
+	}
+
+EXPORT_C CCmsCertificateChoice::TCertificateType CCmsCertificateChoice::CertificateType()
+	{
+	return iCertificateType;
+	}