private FtpReply Execute(string command)
{
_stream.WriteLine(_encoding, command);
FtpReply reply = ReadReply();
return(reply);
}
private void Authenticate()
{
if (_credential != null)
{
FtpReply reply1 = this.Execute("USER {0}", _credential.UserName);
FtpReply reply2 = this.Execute("PASS {0}", _credential.Password);
}
}
public Stream OpenRead(string path)
{
SetWorkingDirectory(path.Remove(path.LastIndexOf('/')));
FtpReply reply1 = Execute("TYPE I");
FtpDataStream socketData = OpenDataStream();
FtpReply reply2 = Execute("RETR {0}", path.Substring(path.LastIndexOf('/') + 1));
return(socketData);
}
public void Connect()
{
_stream = new FtpSocketStream();
_stream.Connect(_host, _port);
FtpReply reply = ReadReply();
if (reply.Code != "220")
{
throw new Exception();
}
Authenticate();
}
private FtpDataStream OpenDataStream()
{
FtpReply reply1 = Execute("PASV");
Match match = Regex.Match(reply1.Message, "(?<quad1>\\d+),(?<quad2>\\d+),(?<quad3>\\d+),(?<quad4>\\d+),(?<port1>\\d+),(?<port2>\\d+)");
IPAddress ipAddress = IPAddress.Parse(match.Groups["quad1"].Value + "." + match.Groups["quad2"].Value + "." + match.Groups["quad3"].Value + "." + match.Groups["quad4"].Value);
int port = (int.Parse(match.Groups["port1"].Value) << 8) + int.Parse(match.Groups["port2"].Value);
FtpDataStream dataStream = new FtpDataStream();
dataStream.Connect(ipAddress, port);
dataStream.Closed += delegate
{
FtpReply reply2 = ReadReply();
};
return(dataStream);
}
public List <string> ListDirectory(string path)
{
SetWorkingDirectory(path);
List <string> lstDirectory = new List <string>();
FtpDataStream socketData = OpenDataStream();
FtpReply reply = Execute("LIST");
string str;
while (!string.IsNullOrEmpty(str = socketData.ReadLine(_encoding)))
{
lstDirectory.Add(str);
}
socketData.Close();
return(lstDirectory);
}
public string GetWorkingDirectory()
{
FtpReply reply = Execute("PWD");
Match match = Regex.Match(reply.Message, "\"(?<pwd>.*)\"");
if (match.Success)
{
return(match.Groups["pwd"].Value);
}
match = Regex.Match(reply.Message, "PWD = (?<pwd>.*)");
if (match.Success)
{
return(match.Groups["pwd"].Value);
}
return("./");
}
public FtpReply ReadReply()
{
FtpReply reply = new FtpReply();
string strReply = _stream.ReadLine(_encoding);
Match match = Regex.Match(strReply, "^(?<code>[0-9]{3}) (?<message>.*)$");
if (match.Success)
{
reply.Code = match.Groups["code"].Value;
reply.Message = match.Groups["message"].Value;
}
else
{
reply.Message = strReply;
}
return(reply);
}
public void SetWorkingDirectory(string path)
{
FtpReply reply = Execute("CWD {0}", path);
}
