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//
// QuotedPrintableDecoder.cpp
//
// Library: Net
// Package: Messages
// Module: QuotedPrintableDecoder
//
// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/Net/QuotedPrintableDecoder.h"
#include "Poco/NumberParser.h"
#include "Poco/Exception.h"
#include "Poco/Ascii.h"
using Poco::UnbufferedStreamBuf;
using Poco::NumberParser;
using Poco::DataFormatException;
namespace Poco {
namespace Net {
QuotedPrintableDecoderBuf::QuotedPrintableDecoderBuf(std::istream& istr):
_buf(*istr.rdbuf())
{
}
QuotedPrintableDecoderBuf::~QuotedPrintableDecoderBuf()
{
}
int QuotedPrintableDecoderBuf::readFromDevice()
{
int ch = _buf.sbumpc();
while (ch == '=')
{
ch = _buf.sbumpc();
if (ch == '\r')
{
_buf.sbumpc(); // read \n
}
else if (Poco::Ascii::isHexDigit(ch))
{
std::string hex = "0x";
hex += (char) ch;
ch = _buf.sbumpc();
if (Poco::Ascii::isHexDigit(ch))
{
hex += (char) ch;
return NumberParser::parseHex(hex);
}
throw DataFormatException("Incomplete hex number in quoted-printable encoded stream");
}
else if (ch != '\n')
{
throw DataFormatException("Invalid occurrence of '=' in quoted-printable encoded stream");
}
ch = _buf.sbumpc();
}
return ch;
}
QuotedPrintableDecoderIOS::QuotedPrintableDecoderIOS(std::istream& istr): _buf(istr)
{
poco_ios_init(&_buf);
}
QuotedPrintableDecoderIOS::~QuotedPrintableDecoderIOS()
{
}
QuotedPrintableDecoderBuf* QuotedPrintableDecoderIOS::rdbuf()
{
return &_buf;
}
QuotedPrintableDecoder::QuotedPrintableDecoder(std::istream& istr):
QuotedPrintableDecoderIOS(istr),
std::istream(&_buf)
{
}
QuotedPrintableDecoder::~QuotedPrintableDecoder()
{
}
} } // namespace Poco::Net
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