/*

* 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:  DRM License Checker interface definition

*

*/

#ifndef DRMLICENSECHECKER_H

#define DRMLICENSECHECKER_H

/**

*  Check and decrypt protected data files encrypted by the license manager.

*

*  @lib DRMLicenseChecker.lib

*  @since Series 60 2.5

*/

class CDRMLicenseChecker: public CBase

    {

    public:  // Local enumerations and types

        enum

            {

            ENoRights = -100000,

            ERightsExpired = -100001,

            };

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        IMPORT_C static CDRMLicenseChecker* NewL();

        /**

        * Destructor.

        */

        IMPORT_C virtual ~CDRMLicenseChecker();

    public: // New functions

        /**

        * This function performs a license check by decrypting a data file and

        * returning the decrypted contents of the data file. A license check

        * can only succeed if a rights object associated with the calling

        * application exists and sufficient rights are present. If the license

        * check fails, an error is returned.

        *

        * @since Series 60 2.6

        * @param aDataFile: the data file to be decrypted

        * @param aDataBuffer: memory buffer which contains the decrypted

        *        contents of the data file.

        * @return ENoRights, ERightsExpired if the data file could not be opened

        *         because of insufficient rights, Symbian-wide error codes or

        *         KErrNone in case of success.

        */

        IMPORT_C TInt CheckLicense(

            const TDesC& aDataFile,

            HBufC8*& aDataBuffer);

    private:

        /**

        * C++ default constructor.

        */

        CDRMLicenseChecker();

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

        /**

        * Leaving version of CheckLicense

        *

        * @since Series 60 3.0

        * @param aDataFile: the data file to be decrypted

        * @param aDataBuffer: memory buffer which contains the decrypted

        *        contents of the data file.

        * @return ENoRights, ERightsExpired if the data file could not be opened

        *         because of insufficient rights, Symbian-wide error codes or

        *         KErrNone in case of success.

        */

        void CheckLicenseL(

            const TDesC& aDataFile,

            HBufC8*& aDataBuffer);

    };

#endif      // DRMLICENSECHECKER_H   

// End of File