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/*
* Copyright (C) 2003-2005 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/mimedb.h>
#include <tnt/util.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))
throwRuntimeError("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 (ch == '.')
{
ext.clear();
state = state_ext;
}
else if (!std::isspace(ch))
{
ext = ch;
state = state_ext;
}
break;
case state_ext:
if (std::isspace(ch))
{
log_debug(ext << " => " << mime);
_mimeDb.insert(MimeDbType::value_type(ext, mime));
state = ch == '\n' ? state_0 : state_ext0;
}
else
ext += ch;
}
}
}
void MimeDb::addType(const std::string& ext, const std::string& mimeType)
{
if (ext.size() > 0 && ext.at(0) == '.')
_mimeDb.insert(MimeDbType::value_type(ext.substr(1), mimeType));
else
_mimeDb.insert(MimeDbType::value_type(ext, mimeType));
}
std::string MimeDb::getMimetype(const std::string& fname) const
{
log_debug("get mimetype for \"" << fname << '"');
std::string ext;
std::string::size_type p = fname.rfind('.');
if (p != std::string::npos)
ext = fname.substr(p + 1);
else
ext = fname;
log_debug("ext=" << ext);
MimeDbType::const_iterator it = _mimeDb.find(ext);
if (it == _mimeDb.end())
{
log_debug("no mimetype found for ext \"" << ext << '"');
return std::string();
}
else
{
log_debug("mimetype for ext \"" << ext << "\": " << it->second);
return it->second;
}
}
}
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