/* <!-- copyright */
/*
 * aria2 - The high speed download utility
 *
 * Copyright (C) 2009 Tatsuhiro Tsujikawa
 *
 * 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 WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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 Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * In addition, as a special exception, the copyright holders give
 * permission to link the code of portions of this program with the
 * OpenSSL library under certain conditions as described in each
 * individual source file, and distribute linked combinations
 * including the two.
 * You must obey the GNU General Public License in all respects
 * for all of the code used other than OpenSSL.  If you modify
 * file(s) with this exception, you may extend this exception to your
 * version of the file(s), but you are not obligated to do so.  If you
 * do not wish to do so, delete this exception statement from your
 * version.  If you delete this exception statement from all source
 * files in the program, then also delete it here.
 */
/* copyright --> */
#include "magnet.h"
#include "util.h"

namespace aria2 {

namespace magnet {

BDE parse(const std::string& magnet)
{
  BDE result;
  if(!util::startsWith(magnet, "magnet:?")) {
    return result;
  }
  std::vector<std::string> queries;
  util::split(std::string(magnet.begin()+8, magnet.end()),
              std::back_inserter(queries), "&");
  BDE dict = BDE::dict();
  for(std::vector<std::string>::const_iterator i = queries.begin(),
        eoi = queries.end(); i != eoi; ++i) {
    std::pair<std::string, std::string> kv;
    util::split(kv, *i, '=');
    std::string value = util::urldecode(kv.second);
    if(dict.containsKey(kv.first)) {
      dict[kv.first] << value;
    } else {
      BDE list = BDE::list();
      list << value;
      dict[kv.first] = list;
    }
  }
  result = dict;
  return result;
}

} // namespace magnet

} // namespace aria2