1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/genericservices/httputils/inc/TConvBase64.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,112 @@
     1.4 +// Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// File contains internal classes for Ascii To Base64 converison
    1.18 +// and vice-versa.
    1.19 +// 
    1.20 +//
    1.21 +
    1.22 +/**
    1.23 + @file TConvBase64.h
    1.24 + @internalAll
    1.25 + @released
    1.26 +*/
    1.27 +
    1.28 +#ifndef __TCONVBASE64_H__
    1.29 +#define __TCONVBASE64_H__
    1.30 +
    1.31 +#include <e32base.h>
    1.32 +
    1.33 +
    1.34 +const TInt KMaxB64EncodedCharsPerLine = 60;
    1.35 +// Could be increased to 75 characters for every encoded line if KDecodeLineLength = 675.  
    1.36 +// 60 was chosen to maintain existing behaviour.
    1.37 +const TInt8 KImcvLookUpStartOffset = 43;
    1.38 +const TUint8 KImcvConvEquals = '=';
    1.39 +const TInt8 AsciiToBase64[80]=
    1.40 +	{
    1.41 +    62, -1, -1, -1, 63, 52, 53, 54, 55, 56,
    1.42 +    57, 58, 59, 60, 61, -1, -1, -1, 64, -1,
    1.43 +    -1, -1,  0,  1,  2,  3,  4,  5,  6,  7,
    1.44 +    8,  9, 10, 11, 12, 13, 14, 15, 16, 17,
    1.45 +    18, 19, 20, 21, 22, 23, 24, 25, -1, -1,
    1.46 +    -1, -1, -1, -1, 26, 27, 28, 29, 30, 31,
    1.47 +    32, 33, 34, 35, 36, 37, 38, 39, 40, 41,
    1.48 +    42, 43, 44, 45, 46, 47, 48, 49, 50, 51
    1.49 +    };
    1.50 +const TInt8 Base64ToAscii[65]=
    1.51 +	{
    1.52 +    65, 66, 67, 68, 69, 70, 71, 72, 73, 74,
    1.53 +    75, 76, 77, 78, 79, 80, 81, 82, 83, 84,
    1.54 +    85, 86, 87, 88, 89, 90, 97, 98, 99,100,
    1.55 +    101,102,103,104,105,106,107,108,109,110,
    1.56 +    111,112,113,114,115,116,117,118,119,120,
    1.57 +    121,122, 48, 49, 50, 51, 52, 53, 54, 55,
    1.58 +    56, 57, 43, 47, 61 
    1.59 +    };
    1.60 +    
    1.61 +/**
    1.62 +Base64 encoding and decoding class.
    1.63 +@internalAll
    1.64 +@released
    1.65 +*/    
    1.66 +class TBase64
    1.67 +	{
    1.68 +private:
    1.69 +	/** 
    1.70 +		enum base64 coding defines 
    1.71 +	*/
    1.72 +	enum
    1.73 +	{ 
    1.74 +	/** Padding characters	*/
    1.75 +	EPadChar = 64 
    1.76 +	};
    1.77 +	
    1.78 +	/** 
    1.79 +	enum for EMaskValues
    1.80 +	*/
    1.81 +	enum EMaskValues
    1.82 +	{ 
    1.83 +	/**	Mask Six bits */
    1.84 +	ESixBitMask = 0x3F, 
    1.85 +	/** Mask Eight bits */
    1.86 +	EEightBitMask = 0xFF 
    1.87 +	};
    1.88 +	
    1.89 +	/** 
    1.90 +	enum for EMaskShiftValues
    1.91 +	*/
    1.92 +	enum EMaskShiftValues
    1.93 +	{ 
    1.94 +	/** enum for 6 	*/
    1.95 +	ESix = 6,
    1.96 +	/** enum for 4 	*/ 
    1.97 +	EFour = 4, 
    1.98 +	/** enum for 2	*/
    1.99 +	ETwo = 2, 
   1.100 +	/** enum for 0	*/
   1.101 +	EZero = 0 
   1.102 +	};
   1.103 +
   1.104 +public:
   1.105 +	IMPORT_C TBase64();
   1.106 +	IMPORT_C TInt Encode( const TDesC8& aSrcString, TDes8& rDestString);
   1.107 +	IMPORT_C TBool Decode( const TDesC8& aSrcString, TDes8& rDestString);
   1.108 +	IMPORT_C TInt PortableEncode(const TDesC8& aSrcString, TDes8& aDestString, TInt aLineLength=-1);
   1.109 +private:
   1.110 +
   1.111 +	TInt iShiftStored;
   1.112 +	TInt iMaskShiftStored;	
   1.113 +	};
   1.114 +	
   1.115 +#endif	// __TCONVBASE64_H__