realtimenetprots/sipfw/SIP/Codec/inc/sipcodecutils.h
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     1 /*
       
     2 * Copyright (c) 2004-2009 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 "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 * Name        : sipcodecutils.h
       
    16 * Part of     : SIP Codec
       
    17 * Interface   : SDK API, SIP Codec API
       
    18 * Version     : SIP/4.0 
       
    19 *
       
    20 */
       
    21 
       
    22 
       
    23 
       
    24 
       
    25 /**
       
    26  @internalComponent
       
    27 */
       
    28 
       
    29 #ifndef SIPCODECUTILS_H
       
    30 #define SIPCODECUTILS_H
       
    31 
       
    32 //  INCLUDES
       
    33 #include <e32base.h>
       
    34 #include "_sipcodecdefs.h"
       
    35 
       
    36 // FORWARD DECLARATIONS
       
    37 class CSIPRouteHeaderBase;
       
    38 class CSIPRouteHeader;
       
    39 class CSIPRecordRouteHeader;
       
    40 class CSIPAddress;
       
    41 class CURIContainer;
       
    42 class RStringF;
       
    43 class RWriteStream;
       
    44 
       
    45 // CLASS DECLARATION
       
    46 /**
       
    47  * Class providing utilities that do not logically belong to
       
    48  * any API class and utility functions that are EXPORTed but not published 
       
    49  * as part of the API.
       
    50  *
       
    51  * @lib sipcodec.lib
       
    52  */
       
    53 class SIPCodecUtils
       
    54 	{
       
    55 	public:	// New functions
       
    56  		
       
    57 		/**
       
    58 		* Creates a deep copy of the given CSIPRouteHeaderBase instance
       
    59 		* and puts it to CleanupStack
       
    60 		* @param aHeader Route-, Record-Route- or Service-Route-header 
       
    61 		*        to be copied
       
    62 		* @returns a new instance of CSIPRouteHeader
       
    63 		*/
       
    64 		IMPORT_C static CSIPRouteHeader* 
       
    65 			CreateRouteHeaderLC(const CSIPRouteHeaderBase& aHeader);
       
    66 			
       
    67 		/**
       
    68 		* Creates a deep copy of the given CSIPRouteHeaderBase instance
       
    69 		* and puts it to CleanupStack		
       
    70 		* @param aHeader Route-, Record-Route- or Service-Route-header 
       
    71 		*        to be copied
       
    72 		* @returns a new instance of CSIPRecordRouteHeader
       
    73 		*/
       
    74 		IMPORT_C static CSIPRecordRouteHeader* 
       
    75 			CreateRecordRouteHeaderLC(const CSIPRouteHeaderBase& aHeader);
       
    76 			
       
    77 		/**
       
    78 		* Creates a new CSIPAddress instance and puts it to CleanupStack	
       
    79 		* @param aURI the ownership is transferred
       
    80 		* @returns a new instance of CSIPAddress
       
    81 		*/
       
    82 		IMPORT_C static CSIPAddress* CreateSIPAddressLC(CURIContainer* aURI);				
       
    83 						
       
    84 			
       
    85     public: // New functions, not imported
       
    86 
       
    87 		/**
       
    88 		* Checks the token's syntax and creates RStringF from it.
       
    89 		* @param aToken A token to be checked.
       
    90         * @param aLeaveCode Leaves with this code if the check fails.
       
    91 		* @returns An openned RStringF. 
       
    92         *          RStringF::Close() should be called for this.
       
    93 		*/	
       
    94         static RStringF 
       
    95             CheckAndCreateTokenL(const TDesC8& aToken, TInt aLeaveCode);
       
    96 
       
    97 		/**
       
    98 		* Removes quotes from the quoted string.
       
    99 		* @param aValue A quoted string.
       
   100 		* @param aWithoutQuotes On return contains the string without quotes.
       
   101         * @returns KErrNone or KErrArgument error code if the aValue is invalid
       
   102 		*/	
       
   103         static TInt 
       
   104             ValueWithoutQuotes(const TDesC8& aValue, TPtrC8& aWithoutQuotes);
       
   105 
       
   106 		/**
       
   107 		* Checks the token's syntax and assigns the right value to aBuffer.
       
   108         * @param aBuffer On return contains the checked string.  
       
   109         * @param aValue A token value.		
       
   110         * @param aErr Leaves with this code if the check fails.
       
   111 		*/	
       
   112         static void 
       
   113             CheckAndSetValueL(HBufC8*& aBuffer,const TDesC8& aValue,TInt aErr);
       
   114 
       
   115 		/**
       
   116 		* Reads the descriptor length and value from the stream.
       
   117         * @param aReadStream A stream where to read.		
       
   118         * @returns a pointer to the descriptor that was read
       
   119         *          from the stream. The ownership is transferred. 
       
   120 		*/	
       
   121         static HBufC8* ReadDescFromStreamL(RReadStream& aReadStream);
       
   122 
       
   123     private: // Contructors
       
   124 
       
   125 		SIPCodecUtils();
       
   126 		};
       
   127 
       
   128 #endif // SIPCODECUTILS_H
       
   129 
       
   130 // End of File