aria2/src/HttpInitiateConnectionCommand.h

/* <!-- copyright */
/*
 * aria2 - The high speed download utility
 *
 * Copyright (C) 2006 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 --> */
#ifndef _D_HTTP_INITIATE_CONNECTION_COMMAND_H_
#define _D_HTTP_INITIATE_CONNECTION_COMMAND_H_

#include "AbstractCommand.h"

class HttpInitiateConnectionCommand : public AbstractCommand {
private:
#ifdef ENABLE_ASYNC_DNS
  NameResolverHandle nameResolver;
#endif // ENABLE_ASYNC_DNS
  bool useProxy();
  bool useProxyGet();
  bool useProxyTunnel();
protected:
  /**
   * Connect to the server.
   * This method just send connection request to the server.
   * Using nonblocking mode of socket, this funtion returns immediately
   * after send connection packet to the server.
   * Whether or not the connection is established successfully is
   * evaluated by RequestCommand.
   */
  bool executeInternal(Segment& segment);
#ifdef ENABLE_ASYNC_DNS
  virtual bool nameResolveFinished() const {
    return nameResolver->getStatus() ==  NameResolver::STATUS_SUCCESS ||
      nameResolver->getStatus() == NameResolver::STATUS_ERROR;
  }
#endif // ENABLE_ASYNC_DNS
public:
  HttpInitiateConnectionCommand(int cuid, const RequestHandle req, DownloadEngine* e);
  ~HttpInitiateConnectionCommand();
};

#endif // _D_HTTP_INITIATE_CONNECTION_COMMAND_H_