sl@0: /*
sl@0: * Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: /**
sl@0:  @file 
sl@0: */
sl@0: 
sl@0: #include <asnpkcs.h>
sl@0: #include <ecom/ecom.h>
sl@0: #include <ecom/implementationproxy.h>
sl@0: 
sl@0: #include "pkcs8recog.h"
sl@0: 
sl@0: const TInt KRecognizerValue = 0x1020361C;
sl@0: const TUid KUidMimeRecognizer = {KRecognizerValue};
sl@0: 
sl@0: _LIT8(KDataTypePkcs8KeyPair, "application/pkcs8");
sl@0: _LIT8(KDataTypePkcs8EncryptedKeyPair, "application/pkcs8-encrypted");
sl@0: 
sl@0: const TInt KSupportedDataTypesNumber = 2;
sl@0: 
sl@0: 
sl@0: // ----------------------------------------------------------------------------
sl@0: // CApaPkcs8Recognizer
sl@0: //
sl@0: 
sl@0: CApaPkcs8Recognizer::CApaPkcs8Recognizer()
sl@0: 	: CApaDataRecognizerType(KUidMimeRecognizer, CApaDataRecognizerType::ENormal)
sl@0: 	{
sl@0: 	iCountDataTypes = KSupportedDataTypesNumber;
sl@0: 	}
sl@0: 
sl@0: TUint CApaPkcs8Recognizer::PreferredBufSize()
sl@0: 	{
sl@0: 	return Max(KIsPKCS8DataMinLength, KIsEncryptedPKCS8DataMinLength);
sl@0: 	}
sl@0: 
sl@0: TDataType CApaPkcs8Recognizer::SupportedDataTypeL(TInt aIndex) const
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(aIndex >= 0 && aIndex < KSupportedDataTypesNumber,
sl@0: 					User::Panic(_L("PKCS8RECOG"), 0));
sl@0: 	switch (aIndex)
sl@0: 		{
sl@0: 		case 0:
sl@0: 			return TDataType(KDataTypePkcs8KeyPair);
sl@0: 	
sl@0: 		case 1:
sl@0: 			return TDataType(KDataTypePkcs8EncryptedKeyPair);
sl@0: 			
sl@0: 		// Used to prevent warning about return paths not all returning a value
sl@0: 		default:
sl@0: 			return TDataType(KDataTypePkcs8KeyPair);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: void CApaPkcs8Recognizer::DoRecognizeL(const TDesC& /*aName*/, const TDesC8& aBuffer)
sl@0: 	{
sl@0: 	// Ensure length is sufficient for checking type pkcs8
sl@0: 	if (aBuffer.Size() >= KIsPKCS8DataMinLength)
sl@0: 		{
sl@0: 		if (TASN1DecPKCS8::IsPKCS8Data(aBuffer))
sl@0: 			{
sl@0: 			iDataType = TDataType(KDataTypePkcs8KeyPair);
sl@0: 			iConfidence = ECertain;
sl@0: 			return;
sl@0: 			}
sl@0: 		}
sl@0: 		
sl@0: 	// Ensure length is sufficient for checking type pkcs8-encrypted	
sl@0: 	if (aBuffer.Size() >= KIsEncryptedPKCS8DataMinLength) 
sl@0: 		{
sl@0: 		if (TASN1DecPKCS8::IsEncryptedPKCS8Data(aBuffer))
sl@0: 			{
sl@0: 			iDataType = TDataType(KDataTypePkcs8EncryptedKeyPair);
sl@0: 			iConfidence = ECertain;
sl@0: 			return;
sl@0: 			}
sl@0: 		}
sl@0: 				
sl@0: 	// type not recognized
sl@0: 	}
sl@0: 
sl@0: CApaDataRecognizerType* CApaPkcs8Recognizer::CreateRecognizerL()
sl@0: 	{
sl@0: 	return new (ELeave) CApaPkcs8Recognizer();
sl@0: 	}
sl@0: 
sl@0: const TImplementationProxy ImplementationTable[] = 
sl@0: 	{
sl@0: 		IMPLEMENTATION_PROXY_ENTRY(0x1020361B, CApaPkcs8Recognizer::CreateRecognizerL)
sl@0: 	};
sl@0: 
sl@0: EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
sl@0: 	{
sl@0: 	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
sl@0: 	return ImplementationTable;
sl@0: 	}	
sl@0: