/*

* Copyright (c) 2001-2009 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: 

* Implementation for DER encoding of GeneralizedTime.

* Following from the decoding class

* 1) fractions of seconds are not supported

* 2) regional time zone offsets are not supported

*

*/

#include "panic.h"

#include <asn1enc.h>

const TUint KEncodingLengthWithoutSeconds = 13;

const TUint KEncodingLengthWithSeconds = 15;

EXPORT_C CASN1EncGeneralizedTime* CASN1EncGeneralizedTime::NewLC(const TTime& aTime)

	{

	CASN1EncGeneralizedTime* self = new (ELeave) CASN1EncGeneralizedTime(aTime);

	CleanupStack::PushL(self);

	self->ConstructL();

	return self;

	}

EXPORT_C CASN1EncGeneralizedTime* CASN1EncGeneralizedTime::NewL(const TTime& aTime)

	{

	CASN1EncGeneralizedTime* self = NewLC(aTime);

	CleanupStack::Pop(self);

	return self;

	}

CASN1EncGeneralizedTime::CASN1EncGeneralizedTime(const TTime& aTime)

: CASN1EncPrimitive(EASN1GeneralizedTime), iDateTime(aTime.DateTime())

	{

	__ASSERT_ALWAYS(iDateTime.Year() < 10000, Panic(KErrYearTooBigForGeneralizedTime));

	}

void CASN1EncGeneralizedTime::CalculateContentsLengthDER()

	{

	iContentsLengthDER = 

		iDateTime.Second() ? KEncodingLengthWithSeconds : KEncodingLengthWithoutSeconds;

	}

void CASN1EncGeneralizedTime::WriteContentsDERL(TDes8& aBuf) const

	{

	aBuf.SetLength(0);

	aBuf.AppendNumFixedWidth(iDateTime.Year(), EDecimal, 4);

	aBuf.AppendNumFixedWidth(iDateTime.Month() + 1, EDecimal, 2);  // Our months are zero-based

	aBuf.AppendNumFixedWidth(iDateTime.Day() + 1, EDecimal, 2);    // Our days are zero-based

	aBuf.AppendNumFixedWidth(iDateTime.Hour(), EDecimal, 2);

	aBuf.AppendNumFixedWidth(iDateTime.Minute(), EDecimal, 2);

	if (iDateTime.Second())

		{

		aBuf.AppendNumFixedWidth(iDateTime.Second(), EDecimal, 2);

		}

	aBuf.Append('Z');

	}