///<summary>Processes a PORT command, sent from the client.</summary>
///<param name="Input">The parameters of the PORT command.</param>
private void ProcessPortCommand(string Input)
{
try {
string [] Parts = Input.Split(',');
if (Parts.Length == 6)
{
DataForward = new FtpDataConnection();
string Reply = DataForward.ProcessPort(new IPEndPoint(IPAddress.Parse(String.Join(".", Parts, 0, 4)), int.Parse(Parts[4]) * 256 + int.Parse(Parts[5])));
DestinationSocket.BeginSend(Encoding.ASCII.GetBytes(Reply), 0, Reply.Length, SocketFlags.None, new AsyncCallback(this.OnCommandSent), DestinationSocket);
}
} catch {
Dispose();
}
}
///<summary>Processes an FTP command, sent from the client.</summary>
///<param name="Command">The command to process.</param>
///<returns>True if the command may be sent to the server, false otherwise.</returns>
private bool ProcessCommand(string Command)
{
try {
int Ret = Command.IndexOf(' ');
if (Ret < 0)
{
Ret = Command.Length;
}
switch (Command.Substring(0, Ret).ToUpper().Trim())
{
case "OPEN":
ConnectTo(ParseIPPort(Command.Substring(Ret + 1)));
break;
case "USER":
Ret = Command.IndexOf('@');
if (Ret < 0)
{
return(true);
}
else
{
User = Command.Substring(0, Ret).Trim() + "\r\n";
ConnectTo(ParseIPPort(Command.Substring(Ret + 1)));
}
break;
case "PORT":
ProcessPortCommand(Command.Substring(5).Trim());
break;
case "PASV":
DataForward = new FtpDataConnection();
DataForward.ProcessPasv(this);
return(true);
default:
return(true);
}
return(false);
} catch {
Dispose();
return(false);
}
}