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/* mimedb.cpp
* Copyright (C) 2003-2005 Tommi Maekitalo
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* is provided AS IS, WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, and
* NON-INFRINGEMENT. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "tnt/mimedb.h"
#include <cctype>
#include <iostream>
#include <fstream>
#include <locale>
#include <stdexcept>
#include <cxxtools/log.h>
namespace tnt
{
log_define("tntnet.mime")
void MimeDb::read(const std::string& mimefile)
{
std::ifstream in(mimefile.c_str());
read(in);
}
void MimeDb::read(const char* mimefile)
{
std::ifstream in(mimefile);
read(in);
}
void MimeDb::read(std::istream& in)
{
enum state_type {
state_0,
state_comment,
state_mime,
state_ext0,
state_ext
} state = state_0;
std::string mime;
std::string ext;
std::streambuf* buf = in.rdbuf();
while (buf->sgetc() != std::ios::traits_type::eof())
{
char ch = buf->sbumpc();
switch (state)
{
case state_0:
if (ch >= 'a' && ch <= 'z'
|| ch >= 'A' && ch <= 'Z')
{
mime = ch;
state = state_mime;
}
else if (ch == '#')
state = state_comment;
else if (!std::isspace(ch))
throw std::runtime_error("parse error in mimedb");
break;
case state_comment:
if (ch == '\n')
state = state_0;
break;
case state_mime:
if (ch == '\n')
state = state_0;
else if (std::isspace(ch))
state = state_ext0;
else
mime += ch;
break;
case state_ext0:
if (ch == '\n')
state = state_0;
else if (!std::isspace(ch))
{
ext = ch;
state = state_ext;
}
break;
case state_ext:
if (std::isspace(ch))
{
log_debug(ext << " => " << mime);
mimeDb.insert(mimedb_type::value_type(ext, mime));
state = ch == '\n' ? state_0 : state_ext0;
}
else
ext += ch;
}
}
}
std::string MimeDb::getMimetype(const std::string& fname) const
{
std::string ext;
std::string::size_type p = fname.rfind('.');
if (p != std::string::npos)
ext = fname.substr(p + 1);
else
ext = fname;
const_iterator it = find(ext);
return it == end() ? std::string() : it->second;
}
}
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