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//
// Base32Encoder.h
//
// Library: Foundation
// Package: Streams
// Module: Base32
//
// Definition of class Base32Encoder.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Foundation_Base32Encoder_INCLUDED
#define Foundation_Base32Encoder_INCLUDED
#include "Poco/Foundation.h"
#include "Poco/UnbufferedStreamBuf.h"
#include <ostream>
namespace Poco {
class Foundation_API Base32EncoderBuf: public UnbufferedStreamBuf
/// This streambuf base32-encodes all data written
/// to it and forwards it to a connected
/// ostream.
///
/// Note: The characters are directly written
/// to the ostream's streambuf, thus bypassing
/// the ostream. The ostream's state is therefore
/// not updated to match the buffer's state.
{
public:
Base32EncoderBuf(std::ostream& ostr, bool padding = true);
~Base32EncoderBuf();
int close();
/// Closes the stream buffer.
private:
int writeToDevice(char c);
unsigned char _group[5];
int _groupLength;
std::streambuf& _buf;
bool _doPadding;
static const unsigned char OUT_ENCODING[32];
friend class Base32DecoderBuf;
Base32EncoderBuf(const Base32EncoderBuf&);
Base32EncoderBuf& operator = (const Base32EncoderBuf&);
};
class Foundation_API Base32EncoderIOS: public virtual std::ios
/// The base class for Base32Encoder.
///
/// This class is needed to ensure the correct initialization
/// order of the stream buffer and base classes.
{
public:
Base32EncoderIOS(std::ostream& ostr, bool padding = true);
~Base32EncoderIOS();
int close();
Base32EncoderBuf* rdbuf();
protected:
Base32EncoderBuf _buf;
private:
Base32EncoderIOS(const Base32EncoderIOS&);
Base32EncoderIOS& operator = (const Base32EncoderIOS&);
};
class Foundation_API Base32Encoder: public Base32EncoderIOS, public std::ostream
/// This ostream base32-encodes all data
/// written to it and forwards it to
/// a connected ostream.
/// Always call close() when done
/// writing data, to ensure proper
/// completion of the encoding operation.
///
/// Note: The characters are directly written
/// to the ostream's streambuf, thus bypassing
/// the ostream. The ostream's state is therefore
/// not updated to match the buffer's state.
{
public:
Base32Encoder(std::ostream& ostr, bool padding = true);
~Base32Encoder();
private:
Base32Encoder(const Base32Encoder&);
Base32Encoder& operator = (const Base32Encoder&);
};
} // namespace Poco
#endif // Foundation_Base32Encoder_INCLUDED
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