/*

* Copyright (c) 2002 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: 

*

*/

// INCLUDE FILES

#include    "CCMSEncapsulatedContentInfo.h"

#include <asn1dec.h>

#include <asn1enc.h>

// CONSTANTS

const TInt KMinNumberOfSubModules = 1;

const TInt KMaxNumberOfSubModules = 2;

const TUint8 KContentTag = 0;

// ============================ MEMBER FUNCTIONS ===============================

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

// CCMSEncapsulatedContentInfo::CCMSEncapsulatedContentInfo

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

EXPORT_C CCMSEncapsulatedContentInfo::CCMSEncapsulatedContentInfo()

    {

    }

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

// CCMSEncapsulatedContentInfo::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

EXPORT_C void CCMSEncapsulatedContentInfo::ConstructL()

    {

	// creating with empty values

	CCMSContentInfo::ConstructL();

	SetContentL( NULL );

    }

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

// CCMSEncapsulatedContentInfo::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

EXPORT_C void CCMSEncapsulatedContentInfo::ConstructL(

	const TDesC& aContentType,

	const TDesC8* aContent )

    {

	CCMSContentInfo::ConstructL( aContentType );

	SetContentL( aContent );

    }

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

// CCMSEncapsulatedContentInfo::NewL

// Two-phased constructor.

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

//

EXPORT_C CCMSEncapsulatedContentInfo* CCMSEncapsulatedContentInfo::NewL()

	{

	CCMSEncapsulatedContentInfo* self = NewLC();

    CleanupStack::Pop( self );

    return self;

	}

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

// CCMSEncapsulatedContentInfo::NewLC

// Two-phased constructor.

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

//

EXPORT_C CCMSEncapsulatedContentInfo* CCMSEncapsulatedContentInfo::NewLC()

	{

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

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

	}

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

// CCMSEncapsulatedContentInfo::NewL

// Two-phased constructor.

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

//

EXPORT_C CCMSEncapsulatedContentInfo* CCMSEncapsulatedContentInfo::NewL(

	const TDesC& aContentType,

	const TDesC8* aContent )

    {

    CCMSEncapsulatedContentInfo* self = NewLC( aContentType, aContent );

    CleanupStack::Pop( self );

    return self;

    }

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

// CCMSEncapsulatedContentInfo::NewLC

// Two-phased constructor.

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

//

EXPORT_C CCMSEncapsulatedContentInfo* CCMSEncapsulatedContentInfo::NewLC(

	const TDesC& aContentType,

	const TDesC8* aContent )

    {

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

    CleanupStack::PushL( self );

    self->ConstructL( aContentType, aContent );

    return self;

    }

// Destructor

CCMSEncapsulatedContentInfo::~CCMSEncapsulatedContentInfo()

    {

    }

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

// CCMSEncapsulatedContentInfo::DecodeL

// Decrypts raw data to this instance

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

void CCMSEncapsulatedContentInfo::DecodeL( const TDesC8& aRawData )

	{

	CArrayPtr<TASN1DecGeneric>* itemsData = DecodeSequenceLC( aRawData,

															  KMinNumberOfSubModules,

															  KMaxNumberOfSubModules );

	// we would not get this far if there is not atleast one

	// decoding attribute type

	TASN1DecObjectIdentifier decOid;

	HBufC* oid = decOid.DecodeDERL( *itemsData->At( 0 ) );

	delete iContentType;

	iContentType = oid;

	// decoding possible content

	HBufC8* contDesc = NULL;

	if( itemsData->Count() > 1 )

		{

		TASN1DecGeneric taggedContent( *itemsData->At( 1 ) );

		if( taggedContent.Tag() != KContentTag )

			{

			User::Leave( KErrArgument );

			}

		TASN1DecOctetString content;

		TInt pos = 0;

		contDesc = content.DecodeDERL( taggedContent.GetContentDER(), pos );

		}

	delete iContent;

	iContent = contDesc;

	CleanupStack::PopAndDestroy( itemsData );

	}

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

// CCMSEncapsulatedContentInfo::EncoderLC

// Returns ASN1 encoder for this instance

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

CASN1EncBase* CCMSEncapsulatedContentInfo::EncoderLC() const

	{

	CASN1EncSequence* root = CASN1EncSequence::NewLC();

	// add attribute type

	CASN1EncObjectIdentifier* oid = CASN1EncObjectIdentifier::NewLC( *iContentType );

	root->AddAndPopChildL( oid );

	// add possible content

	if( iContent )

		{

		CASN1EncOctetString* content = CASN1EncOctetString::NewL( *iContent );

		// explicitly tagged to 0

		// Takes ownership of the encoder, *including* the case when

		// this method leaves.

		CASN1EncExplicitTag* explicitTag =

			CASN1EncExplicitTag::NewLC( content, KContentTag );

		root->AddAndPopChildL( explicitTag );

		}

	return root;

	}

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

// CCMSEncapsulatedContentInfo::Content

// Getter for content

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

EXPORT_C const TDesC8* CCMSEncapsulatedContentInfo::Content() const

	{

	return iContent;

	}

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

// CCMSEncapsulatedContentInfo::SetContentL

// Setter for content, takes copy

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

EXPORT_C void CCMSEncapsulatedContentInfo::SetContentL( const TDesC8* aContent )

	{

	HBufC8* tmp = NULL;

	if( aContent )

		{

		tmp = aContent->AllocL();

		}

	delete iContent;

	iContent = tmp;

	}

//  End of File