1 /*

     2 * Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 /**

    22  @file

    23  @internalComponent

    24  @released

    25 */

    26 

    27 #ifndef __CAFAPARECOGNIZER_H__

    28 #define __CAFAPARECOGNIZER_H__

    29 

    30 #include <apmrec.h>

    31 

    32 #include "caf.h"

    33 

    34 const TUid KUidCafApaRecognizer = {0x101ff761};

    35 

    36 class CMimeTypeMapping;

    37 class RFileReadStream;

    38 

    39 /**

    40 This is the apparc recognizer for files handled by the Content Access Framework.

    41 It recognizes protected content and returns a mime type to apparc based upon a

    42 set of rules:

    43 

    44 @li A file containing one or more content object(s) that needs to be be passed 

    45 through the CAF supplier API before it can be used will be recognized as it's 

    46 native file mime type (eg. application/vnd.oma.drm.message).

    47 

    48 @li A file containing more than one content object will be recognized as 

    49 <b>application/x-caf</b> regardless of what type of file it is. If the file 

    50 is recognized the method used to store the content objects inside the file 

    51 is irrelevant. CAF abstracts the process of navigating and reading from those 

    52 objects anyway.

    53 

    54 @li A file containing a single content object will be recognized as a mangled 

    55 version of that content object's mime type regardless of the type of file holding

    56 that content object. The prefix "x-caf-" will be added to the content objects mime 

    57 type to distinguish it from normal content files with that mime type. For instance 

    58 a protected file containing an image/jpeg will be recognized as x-caf-image/jpeg

    59 

    60 @internalComponent

    61 @released

    62 */

    63 

    64 class CApaCafRecognizer : public CApaDataRecognizerType

    65 	{

    66 public:	

    67 	static CApaCafRecognizer* NewL();

    68 	virtual ~CApaCafRecognizer();

    69 

    70 	// From CApaDataRecognizerType

    71 	virtual TUint PreferredBufSize();

    72 	virtual TDataType SupportedDataTypeL(TInt aIndex) const;

    73 	virtual void DoRecognizeL(const TDesC& aName, const TDesC8& aBuffer);

    74 	

    75 private:	

    76 	CApaCafRecognizer();

    77 	void ConstructL();

    78 

    79 	// Build a list of content types

    80 	void SetupContentTypesL();

    81 	TInt ReadLine(RFileReadStream& aFile, TDes8& aBuffer);

    82 	RPointerArray <CMimeTypeMapping> iContentTypes;

    83 

    84 	ContentAccess::CAgentResolver* iResolver;

    85 	};

    86 

    87 #endif