--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/upnp/upnpstack/dlnawebserver/inc/upnphttpchunkparser.h	Tue Feb 02 01:12:20 2010 +0200
@@ -0,0 +1,183 @@
+/** @file
+* Copyright (c) 2005-2006 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:  Parses chunked-encoding content.
+*
+*/
+
+
+#ifndef C_CUPNPHTTPCHUNKPARSER_H
+#define C_CUPNPHTTPCHUNKPARSER_H
+
+// INCLUDES
+#include <e32base.h>
+#include <f32file.h>
+
+// FORWARD DECLARATIONS
+
+// CONSTANTS
+
+/**
+ *  CUpnpHttpChunkParser:
+ *	Parses chunked-encoding content.
+ *  @lib dlnawebserver.lib
+ *  @since S60 3.2
+ */
+NONSHARABLE_CLASS (CUpnpHttpChunkParser) : public CBase
+		{
+public: 
+	//possible values of the context
+    enum TChunkContext
+        {
+        EUnknown=0,
+        EHeader,        
+        EBody,
+        ELastChunk,
+        EExtension,
+        ETrailer,
+        EEndChunkBody,
+        EError,
+        EFinish,
+        };
+
+
+	// Constructor and destructor
+    /**
+    * Constructor function.
+    * @since Series60 3.2 
+    * @return A new CUpnpHttpChunkParser instance
+    **/
+    static CUpnpHttpChunkParser* NewL();
+
+    /**
+    * Virtual destructor function.
+    * @since Series60 3.2 
+    **/
+    virtual ~CUpnpHttpChunkParser();
+    
+     /**
+     * Parse - decodes chunked-encoding     
+     * @since S60 3.2
+     * @param buffer
+     * @param position in the buffer
+     * @return error code
+     */
+    TInt Parse(TDes8& aBuffer,TInt& aPos);
+    
+    /**
+     * SetErrorState - set error state
+     * @since S60 3.2          
+     */
+    void SetErrorState();
+
+	/**
+     * IsFinished - if decoding finished    
+     * @since S60 3.2     
+     * @return TBool
+     */	
+	TBool IsFinished();
+		
+	/**
+     * Reset - resets parser for new decoding
+     * @since S60 3.2          
+     */
+	void Reset();
+
+
+  
+protected: // Constructors
+
+    /**
+    * First phase constructor.
+    * @param aSession Handle to session that owns CUpnpChunkFileTransferBuffer instance.
+    * @param aToBeSaveInFile Should content be saved to the file.
+    **/
+    CUpnpHttpChunkParser();
+
+    /**
+    * By default Symbian 2nd phase constructor is private
+    */
+    void ConstructL();
+	   
+private:
+
+   	/**
+     * ParseBody - decodes chunk-body     
+     * @since S60 3.2
+     * @param buffer
+     * @param position in the buffer
+     * @return ETrue if all data parsed
+     */
+    TBool ParseBody(TDes8& aBuffer,TInt& aPos);
+    
+    /**
+     * ParseHeader - decodes chunk-header    
+     * @since S60 3.2
+     * @param buffer
+     * @param position in the buffer
+     * @return ETrue if all data parsed
+     */
+    TBool ParseHeader(TDes8& aBuffer,TInt& aPos);
+    
+    /**
+     * ParseExtension - decodes chunk-extension     
+     * @since S60 3.2
+     * @param buffer
+     * @param position in the buffer
+     * @return ETrue if all data parsed
+     */
+    TBool ParseExtension(TDes8& aBuffer,TInt& aPos);
+    
+    /**
+     * ParseTrailer - decodes chunk-trailer    
+     * @since S60 3.2
+     * @param buffer
+     * @param position in the buffer
+     * @return ETrue if all data parsed
+     */
+    TBool ParseTrailer(TDes8& aBuffer,TInt& aPos);
+    
+    /**
+     * ParseLastChunk - decodes last chunk     
+     * @since S60 3.2
+     * @param buffer
+     * @param position in the buffer
+     * @return ETrue if all data parsed
+     */
+    TBool ParseLastChunk(TDes8& aBuffer,TInt& aPos);
+    
+    /**
+     * IsEmpty - checks if any data left     
+     * @since S60 3.2
+     * @param buffer
+     * @param position in the buffer
+     * @return ETrue if no data left
+     */
+    TBool IsEmpty(TDes8& aBuffer,TInt aPos);        
+    
+protected: 
+	
+    //Context of the parser
+    TChunkContext iContext;
+    //size of the current chunk
+    TInt iChunkSize;
+	//error in parsing    
+    TInt iError;
+    //already appended bytes of the current chunk
+    TInt iBytesAppended;        
+    
+	};
+
+#endif // C_CUPNPHTTPCHUNKPARSER_H
+
+// End Of File