--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/genericservices/httputils/inc/TConvBase64.h	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,112 @@
+// Copyright (c) 2001-2009 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:
+// File contains internal classes for Ascii To Base64 converison
+// and vice-versa.
+// 
+//
+
+/**
+ @file TConvBase64.h
+ @internalAll
+ @released
+*/
+
+#ifndef __TCONVBASE64_H__
+#define __TCONVBASE64_H__
+
+#include <e32base.h>
+
+
+const TInt KMaxB64EncodedCharsPerLine = 60;
+// Could be increased to 75 characters for every encoded line if KDecodeLineLength = 675.  
+// 60 was chosen to maintain existing behaviour.
+const TInt8 KImcvLookUpStartOffset = 43;
+const TUint8 KImcvConvEquals = '=';
+const TInt8 AsciiToBase64[80]=
+	{
+    62, -1, -1, -1, 63, 52, 53, 54, 55, 56,
+    57, 58, 59, 60, 61, -1, -1, -1, 64, -1,
+    -1, -1,  0,  1,  2,  3,  4,  5,  6,  7,
+    8,  9, 10, 11, 12, 13, 14, 15, 16, 17,
+    18, 19, 20, 21, 22, 23, 24, 25, -1, -1,
+    -1, -1, -1, -1, 26, 27, 28, 29, 30, 31,
+    32, 33, 34, 35, 36, 37, 38, 39, 40, 41,
+    42, 43, 44, 45, 46, 47, 48, 49, 50, 51
+    };
+const TInt8 Base64ToAscii[65]=
+	{
+    65, 66, 67, 68, 69, 70, 71, 72, 73, 74,
+    75, 76, 77, 78, 79, 80, 81, 82, 83, 84,
+    85, 86, 87, 88, 89, 90, 97, 98, 99,100,
+    101,102,103,104,105,106,107,108,109,110,
+    111,112,113,114,115,116,117,118,119,120,
+    121,122, 48, 49, 50, 51, 52, 53, 54, 55,
+    56, 57, 43, 47, 61 
+    };
+    
+/**
+Base64 encoding and decoding class, complaint with RFC-3548.
+@internalAll
+@released
+*/    
+class TBase64
+	{
+private:
+	/** 
+		enum base64 coding defines 
+	*/
+	enum
+	{ 
+	/** Padding characters	*/
+	EPadChar = 64 
+	};
+	
+	/** 
+	enum for EMaskValues
+	*/
+	enum EMaskValues
+	{ 
+	/**	Mask Six bits */
+	ESixBitMask = 0x3F, 
+	/** Mask Eight bits */
+	EEightBitMask = 0xFF 
+	};
+	
+	/** 
+	enum for EMaskShiftValues
+	*/
+	enum EMaskShiftValues
+	{ 
+	/** enum for 6 	*/
+	ESix = 6,
+	/** enum for 4 	*/ 
+	EFour = 4, 
+	/** enum for 2	*/
+	ETwo = 2, 
+	/** enum for 0	*/
+	EZero = 0 
+	};
+
+public:
+	IMPORT_C TBase64();
+	IMPORT_C TInt Encode( const TDesC8& aSrcString, TDes8& rDestString);
+	IMPORT_C TBool Decode( const TDesC8& aSrcString, TDes8& rDestString);
+
+private:
+
+	TInt iShiftStored;
+	TInt iMaskShiftStored;	
+	};
+	
+#endif	// __TCONVBASE64_H__