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Copy pathQuotedPrintableEncoder.cpp
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152 lines (120 loc) · 2.26 KB
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//
// QuotedPrintableEncoder.cpp
//
// $Id: //poco/1.4/Net/src/QuotedPrintableEncoder.cpp#1 $
//
// Library: Net
// Package: Messages
// Module: QuotedPrintableEncoder
//
// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/Net/QuotedPrintableEncoder.h"
#include "Poco/NumberFormatter.h"
using Poco::UnbufferedStreamBuf;
using Poco::NumberFormatter;
namespace Poco {
namespace Net {
QuotedPrintableEncoderBuf::QuotedPrintableEncoderBuf(std::ostream& ostr):
_pending(-1),
_lineLength(0),
_ostr(ostr)
{
}
QuotedPrintableEncoderBuf::~QuotedPrintableEncoderBuf()
{
try
{
close();
}
catch (...)
{
}
}
int QuotedPrintableEncoderBuf::writeToDevice(char c)
{
if (_pending != -1)
{
if (_pending == '\r' && c == '\n')
writeRaw((char) _pending);
else if (c == '\r' || c == '\n')
writeEncoded((char) _pending);
else
writeRaw((char) _pending);
_pending = -1;
}
if (c == '\t' || c == ' ')
{
_pending = charToInt(c);
return _pending;
}
else if (c == '\r' || c == '\n' || (c > 32 && c < 127 && c != '='))
{
writeRaw(c);
}
else
{
writeEncoded(c);
}
return charToInt(c);
}
void QuotedPrintableEncoderBuf::writeEncoded(char c)
{
if (_lineLength >= 73)
{
_ostr << "=\r\n";
_lineLength = 3;
}
else _lineLength += 3;
_ostr << '=' << NumberFormatter::formatHex((unsigned) charToInt(c), 2);
}
void QuotedPrintableEncoderBuf::writeRaw(char c)
{
if (c == '\r' || c == '\n')
{
_ostr.put(c);
_lineLength = 0;
}
else if (_lineLength < 75)
{
_ostr.put(c);
++_lineLength;
}
else
{
_ostr << "=\r\n" << c;
_lineLength = 1;
}
}
int QuotedPrintableEncoderBuf::close()
{
sync();
return _ostr ? 0 : -1;
}
QuotedPrintableEncoderIOS::QuotedPrintableEncoderIOS(std::ostream& ostr): _buf(ostr)
{
poco_ios_init(&_buf);
}
QuotedPrintableEncoderIOS::~QuotedPrintableEncoderIOS()
{
}
int QuotedPrintableEncoderIOS::close()
{
return _buf.close();
}
QuotedPrintableEncoderBuf* QuotedPrintableEncoderIOS::rdbuf()
{
return &_buf;
}
QuotedPrintableEncoder::QuotedPrintableEncoder(std::ostream& ostr):
QuotedPrintableEncoderIOS(ostr),
std::ostream(&_buf)
{
}
QuotedPrintableEncoder::~QuotedPrintableEncoder()
{
}
} } // namespace Poco::Net