qBittorrent/src/webui/httprequestparser.cpp

/*
 * Bittorrent Client using Qt4 and libtorrent.
 * Copyright (C) 2006  Ishan Arora and Christophe Dumez
 *
 * 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 this program with the OpenSSL project's "OpenSSL" library (or with
 * modified versions of it that use the same license as the "OpenSSL" library),
 * and distribute the linked executables. 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), 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.
 *
 * Contact : chris@qbittorrent.org
 */


#include "httprequestparser.h"
#include <QUrl>
#include <QDebug>

HttpRequestParser::HttpRequestParser(): m_headerDone(false),
  m_messageDone(false), m_error(false)
{
}

HttpRequestParser::~HttpRequestParser()
{
}

bool HttpRequestParser::isParsable() const {
  return !m_error && m_headerDone && isValid()
      && (m_messageDone || !hasContentLength() || contentLength() == 0);
}

bool HttpRequestParser::isError() const {
  return m_error;
}

QString HttpRequestParser::url() const {
  return m_path;
}

QByteArray HttpRequestParser::message() const {
  if (isParsable())
    return m_data;
	return QByteArray();
}

QString HttpRequestParser::get(const QString& key) const {
        return m_getMap.value(key);
}

QString HttpRequestParser::post(const QString& key) const {
        return m_postMap.value(key);
}

QByteArray HttpRequestParser::torrent() const {
  return m_torrentContent;
}

void HttpRequestParser::write(QByteArray ba) {
  // Parse header
  while (!m_headerDone && !ba.isEmpty()) {
    const int index = ba.indexOf('\n') + 1;
    if(index == 0) {
      m_data += ba;
      ba.clear();
    } else {
      m_data += ba.left(index);
      ba.remove(0, index);
      if(m_data.right(4) == "\r\n\r\n") {
        QHttpRequestHeader::operator=(QHttpRequestHeader(m_data));
        m_headerDone = true;
        m_data.clear();
				QUrl url = QUrl::fromEncoded(QHttpRequestHeader::path().toAscii());
        m_path = url.path();

				QListIterator<QPair<QString, QString> > i(url.queryItems());
        while (i.hasNext()) {
					QPair<QString, QString> pair = i.next();
          m_getMap[pair.first] = pair.second;
				}
			}
		}
	}
  // Parse message
  if(!m_messageDone && !ba.isEmpty()) {
    if(hasContentLength()) {
      m_data += ba;
      if(m_data.size() >= (int) contentLength()) {
        m_data.resize(contentLength());
        m_messageDone = true;
				//parse POST data
        if(contentType() == "application/x-www-form-urlencoded") {
					QUrl url;
          url.setEncodedQuery(m_data);
					QListIterator<QPair<QString, QString> > i(url.queryItems());
          while (i.hasNext())	{
						QPair<QString, QString> pair = i.next();
            m_postMap[pair.first] = pair.second;
					}
				}
        if(contentType() == "multipart/form-data") {
          m_torrentContent = m_data.right(m_data.size()-m_data.indexOf("\r\n\r\n")-QByteArray("\r\n\r\n").size());
				}
			}
    }	else {
      m_error = true;
    }
  }
}