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Copy pathQuotedPrintableEncoder.cpp
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172 lines (140 loc) · 3.53 KB
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//
// QuotedPrintableEncoder.cpp
//
// $Id: //poco/svn/Net/src/QuotedPrintableEncoder.cpp#2 $
//
// Library: Net
// Package: Messages
// Module: QuotedPrintableEncoder
//
// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#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