Base64.h++

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/* ---------------------------------------------------------------------------
   commonc++ - A C++ Common Class Library
   Copyright (C) 2005-2014  Mark A Lindner

   This file is part of commonc++.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with this library; if not, write to the Free
   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   ---------------------------------------------------------------------------
*/

#ifndef __ccxx_Base64_hxx
#define __ccxx_Base64_hxx

#include <commonc++/Common.h++>
#include <commonc++/Buffer.h++>

namespace ccxx {

class COMMONCPP_API Base64
{
 public:

  static size_t encode(ByteBuffer& input, CharBuffer& output);

  static size_t encode(const byte_t* input, size_t inputLen,
                       char* output, size_t outputLen);

  static size_t decode(CharBuffer& input, ByteBuffer& output);

  static size_t decode(const char* input, size_t inputLen,
                       byte_t* output, size_t outputLen);

 private:

  static int32_t decodeByte(char c);
  static char encodeByte(int32_t b);

  Base64(); // not supported
  CCXX_COPY_DECLS(Base64);
};

} // namespace ccxx

#endif // __ccxx_Base64_hxx