/*

* Copyright (c) 2006 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:

*

*/

#ifndef ASF_H

#define ASF_H

//  INCLUDES

#include <f32file.h>

// LOCAL CONSTANTS AND MACROS

// CLASS DECLARATION

class CAsfPartInfo;

/**

*  Encapsulates an WMDRM file

*

*  @lib DrmAsf.lib

*  @since Series 60 3.1

*/

class CAsf: public CBase

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        IMPORT_C static CAsf* NewL(

            const RFile& aFile );

        IMPORT_C static CAsf* NewL(

            const TDesC& aFileName );

        /**

        * Destructor.

        */

        IMPORT_C virtual ~CAsf();

    public: // Functions from base classes

    public: // New functions

        /**

		* Validates whether ASF content is DRM protected or not.

		*/

        IMPORT_C static TBool IsProtected(

        	const TDesC8& aAsfHeader);

    protected: 

        /**

        * C++ default constructor.

        */

        CAsf();

        /**

        * Symbian 2nd phase constructor.

        */

        void ConstructL(

            const RFile& aFile );

		void ConstructL(

    		const TDesC& aFileName );

    private: // New functions

  		/**

  		* ValidateL();

		* Validates whether content is ASF format or not.

		*/

		void ValidateL();

		void InitializeL();

        /**

        * FormatGUID(TDes8 &aGUID);

        * Formats Global UID

        * @return void

		*/

        void FormatGUID( TDes8 &aGUID );

    	/**

        * Parses all entries in Content Description Object

        * @return void

		*/

		void ParseContentDescriptionObjectL();

    	/**

        * Parses all entries in Content Encryption Object

        * @return void

		*/

		void ParseContentEncryptionObjectL();

		/**

        * Parses all entries in Extended Content Description Object

        * @return void

		*/

		void ParseExtendedContentDescriptionObjectL();

		/**

        * read Extended Content Description Object

        * @return void

		*/

		HBufC16* ReadExtendedContentObjectL( TInt aOffset );

    public:    // Data

        // File to be used for reading

        RFs iFs;

        RFile iFile;

        // Size of the ASF itself

        TInt iLength;

        // metadata from Content Description Object

        // All metadata is UTF-16 format.

        HBufC* iTitle;

        HBufC* iAuthor;

        HBufC* iCopyright;

        HBufC* iDescription;

        HBufC* iRating;

        // metadata from Extended Content Description Object

        HBufC* iAlbumTitle;

        HBufC* iPicture;

        HBufC* iText;

        HBufC* iComposer;

        HBufC* iGenre;

        HBufC* iOriginalArtist;

        HBufC* iTrackNumber;

        HBufC* iUniqueFileID;

        HBufC* iAudioFileUrl;

        HBufC* iSharedUserRating;

        HBufC* iDate;

        HBufC* iYear;

        // DRM protected content

        TBool iIsDrmProtected;

        // ASF validated content

        TBool iIsValidated;

        // Header data

		HBufC8* iHeaderData;

		// Data from ContentEncryption Object

		HBufC8* iSecretData;

		HBufC8* iProtectionType;

		HBufC8* iKeyId;

		HBufC8* iLicenseUrl;

		// Data from ExtendedContentEncryption Object

		HBufC8* iExtendedContentEncryptionObject;

		// Data from DigitalSignature Object

		HBufC8* iDigitalSignatureObject;

		HBufC8* iSignedData;

		// Character Set Id used during Unicode conversion

		// mainly for future use: Nbr of all Objects found from Hdr

		TInt iNbrOfObjects;

		TInt iContentDescriptionOffset;

		TInt iFilePropertiesOffset;

		TInt iExtendedContentDescriptionOffset;

		TInt iContentEncryptionOffset;

		TInt iExtendedContentEncryptionOffset;

		TInt iDigitalSignatureOffset;

		TInt iExtendedContentDescriptionCount;

        TInt iHeaderSize;

		TInt iTitleLength;

		TInt iAuthorLength;

		TInt iCopyrightLength;

		TInt iDescriptionLength;

		TInt iRatingLength;

		// Details from Content Encryption Object

		TInt iSecretDataLength;

		TInt iProtectionTypeLength;

		TInt iKeyIDLength;

		TInt iLicenceUrlLength;

		TBool iContentDescriptionObjectExists;

		TBool iFilePropertiesObjectExists;

		TBool iExtendedContentDescriptionObjectExists;

		TBool iExtendedContentEncryptionObjectExists;

		TBool iContentEncryptionObjectExists;

		TBool iDigitalSignatureObjectExists;

		TPtrC iMimeType;

        // End offset of file properties object

        // Used to decide start point of signed data

        TInt iFilePropertiesEndOffset;

        // Reserved pointer for future extension

        //TAny* iReserved;

    public:     // Friend classes

        //?friend_class_declaration;

    protected:  // Friend classes

        //?friend_class_declaration;

    private:    // Friend classes

        //?friend_class_declaration;

    };

#endif      // ASF_H   

// End of File