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/* <!-- 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_FTP_CONNECTION_H
#define D_FTP_CONNECTION_H
#include "common.h"
#include <utility>
#include <string>
#include <memory>
#include "TimeA2.h"
#include "SocketBuffer.h"
#include "Command.h"
#include "a2functional.h"
namespace aria2 {
class Option;
class Segment;
class Request;
class SocketCore;
class AuthConfig;
class FtpConnection {
private:
cuid_t cuid_;
std::shared_ptr<SocketCore> socket_;
std::shared_ptr<Request> req_;
std::shared_ptr<AuthConfig> authConfig_;
const Option* option_;
std::string strbuf_;
SocketBuffer socketBuffer_;
std::string baseWorkingDir_;
int getStatus(const std::string& response) const;
std::string::size_type findEndOfResponse(int status,
const std::string& buf) const;
bool bulkReceiveResponse(std::pair<int, std::string>& response);
// prepare for large banners
static const size_t MAX_RECV_BUFFER = 64_k;
public:
FtpConnection(cuid_t cuid, const std::shared_ptr<SocketCore>& socket,
const std::shared_ptr<Request>& req,
const std::shared_ptr<AuthConfig>& authConfig,
const Option* op);
~FtpConnection();
bool sendUser();
bool sendPass();
bool sendType();
bool sendPwd();
bool sendCwd(const std::string& dir);
bool sendMdtm();
bool sendSize();
bool sendEpsv();
bool sendPasv();
std::shared_ptr<SocketCore> createServerSocket();
bool sendEprt(const std::shared_ptr<SocketCore>& serverSocket);
bool sendPort(const std::shared_ptr<SocketCore>& serverSocket);
bool sendRest(const std::shared_ptr<Segment>& segment);
bool sendRetr();
int receiveResponse();
int receiveSizeResponse(int64_t& size);
// Returns status code of MDTM reply. If the status code is 213, parses
// time-val and store it in time.
// If a code other than 213 is returned, time is not touched.
// Expect MDTM reply is YYYYMMDDhhmmss in GMT. If status is 213 but returned
// date cannot be parsed, then assign Time::null() to given time.
// If reply is not received yet, returns 0.
int receiveMdtmResponse(Time& time);
int receiveEpsvResponse(uint16_t& port);
int receivePasvResponse(std::pair<std::string, uint16_t>& dest);
int receivePwdResponse(std::string& pwd);
void setBaseWorkingDir(const std::string& baseWorkingDir);
const std::string& getBaseWorkingDir() const { return baseWorkingDir_; }
const std::string& getUser() const;
};
} // namespace aria2
#endif // D_FTP_CONNECTION_H
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