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/*
* Copyright (C) 2003 Tommi Maekitalo
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* As a special exception, you may use this file as part of a free
* software library without restriction. Specifically, if other files
* instantiate templates or use macros or inline functions from this
* file, or you compile this file and link it with other files to
* produce an executable, this file does not by itself cause the
* resulting executable to be covered by the GNU General Public
* License. This exception does not however invalidate any other
* reasons why the executable file might be covered by the GNU Library
* General Public License.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <tnt/multipart.h>
#include <tnt/httpheader.h>
#include <tnt/util.h>
#include <sstream>
#include <stdexcept>
#include <streambuf>
#include <tnt/stringlessignorecase.h>
namespace
{
template <typename iterator>
class iterator_streambuf : public std::streambuf
{
public:
typedef unsigned long streamsize;
private:
iterator& _begin;
iterator _end;
char_type _buffer[2];
protected:
std::streambuf::int_type overflow(std::streambuf::int_type /* ch */)
{ return traits_type::eof(); }
int sync()
{
if (gptr() == _buffer + 1)
++_begin;
setg(0, 0, 0);
return 0;
}
std::streambuf::int_type underflow()
{
if (_begin == _end)
return traits_type::eof();
if (gptr() == _buffer + 1)
++_begin;
_buffer[0] = *_begin;
setg(_buffer, _buffer, _buffer + 1);
return _buffer[0];
}
public:
iterator_streambuf(iterator& b, iterator e)
: _begin(b),
_end(e)
{ }
};
}
namespace tnt
{
Partheader::return_type Partheader::onField(const char* name,
const char* value)
{
if (tnt::StringCompareIgnoreCase<const char*>(name, "Content-Disposition:") == 0)
{
std::istringstream in(value);
in >> _cd;
if (!in)
return FAIL;
}
return Messageheader::onField(name, value);
}
Part::Part(const_iterator b, const_iterator e)
{
iterator_streambuf<const_iterator> buf(b, e);
std::istream in(&buf);
in >> _header;
if (!in)
throwRuntimeError("error in parsing message-header");
in.sync();
_bodyBegin = b;
_bodyEnd = e;
}
std::string Part::getHeader(const std::string& key) const
{
Messageheader::const_iterator it = _header.find(key);
if (it != _header.end())
return it->second;
return std::string();
}
std::string Partheader::getMimetype() const
{
const_iterator it = find(httpheader::contentType);
return it == end() ? std::string() : it->second;
}
void Multipart::set(const std::string& boundary, const std::string& b)
{
_body = b;
std::string::size_type bpos = _body.find(boundary);
while (bpos != std::string::npos)
{
bpos += boundary.size();
if (_body[bpos] == '\r')
++bpos;
if (_body[bpos] == '\n')
++bpos;
std::string::size_type bend = _body.find(boundary, bpos);
if (bend == std::string::npos)
return;
std::string::size_type nbegin = bend;
if (_body[bend-1] == '-')
--bend;
if (_body[bend-1] == '-')
--bend;
if (_body[bend-1] == '\n')
--bend;
if (_body[bend-1] == '\r')
--bend;
_parts.push_back(part_type(_body.begin() + bpos, _body.begin() + bend));
bpos = nbegin;
}
}
Multipart::const_iterator Multipart::find(const std::string& part_name,
Multipart::const_iterator start) const
{
for (const_iterator it = start; it != end(); ++it)
if (it->getName() == part_name)
return it;
return end();
}
}
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