aria2/src/DHTMessageFactory.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_DHT_MESSAGE_FACTORY_H_
#define _D_DHT_MESSAGE_FACTORY_H_

#include "common.h"
#include "DHTMessageDecl.h"
#include "DHTNodeDecl.h"
#include "PeerDecl.h"

class Dictionary;

class DHTMessageFactory {
public:
  virtual ~DHTMessageFactory() {}

  virtual DHTMessageHandle
  createQueryMessage(const Dictionary* d,
		     const string& ipaddr, uint16_t port) = 0;

  virtual DHTMessageHandle
  createResponseMessage(const string& messageType,
			const Dictionary* d,
			const DHTNodeHandle& remoteNode) = 0;

  virtual DHTMessageHandle
  createPingMessage(const DHTNodeHandle& remoteNode,
		    const string& transactionID = "") = 0;

  virtual DHTMessageHandle
  createPingReplyMessage(const DHTNodeHandle& remoteNode,
			 const unsigned char* id,
			 const string& transactionID) = 0;

  virtual DHTMessageHandle
  createFindNodeMessage(const DHTNodeHandle& remoteNode,
			const unsigned char* targetNodeID,
			const string& transactionID = "") = 0;

  virtual DHTMessageHandle
  createFindNodeReplyMessage(const DHTNodeHandle& remoteNode,
			     const DHTNodes& closestKNodes,
			     const string& transactionID) = 0;

  virtual DHTMessageHandle
  createGetPeersMessage(const DHTNodeHandle& remoteNode,
			const unsigned char* infoHash,
			const string& transactionID = "") = 0;

  virtual DHTMessageHandle
  createGetPeersReplyMessage(const DHTNodeHandle& remoteNode,
			     const DHTNodes& closestKNodes,
			     const string& token,
			     const string& transactionID) = 0;

  virtual DHTMessageHandle
  createGetPeersReplyMessage(const DHTNodeHandle& remoteNode,
			     const Peers& peers,
			     const string& token,
			     const string& transactionID) = 0;

  virtual DHTMessageHandle
  createAnnouncePeerMessage(const DHTNodeHandle& remoteNode,
			    const unsigned char* infoHash,
			    uint16_t tcpPort,
			    const string& token,
			    const string& transactionID = "") = 0;

  virtual DHTMessageHandle
  createAnnouncePeerReplyMessage(const DHTNodeHandle& remoteNode,
				 const string& transactionID) = 0;

  virtual DHTMessageHandle
  createUnknownMessage(const char* data, size_t length, const string& ipaddr,
		       uint16_t port) = 0;
};

#endif // _D_DHT_MESSAGE_FACTORY_H_