public FTPDataConnection(IFTPConnection conn)
{
_conn = conn;
_transType = conn.TransferType;
set_transfer_type(conn, _transType);
_conn.Lock();
set_up_data_connection(conn);
}
public int DeleteFile(IFTPConnection connection, string remoteFileName)
{
connection.Lock();
int returnValue = 0;
string[] tempMessageList = connection.SendCommand("DELE " + remoteFileName);
returnValue = FTPUtilities.GetMessageReturnValue(tempMessageList.Last());
connection.Unlock();
return returnValue;
}
private static int rename_file(IFTPConnection connection, string fromRemoteFileName, string toRemoteFileName)
{
connection.Lock();
int returnValue = 0;
string[] tempMessageList = connection.SendCommand("RNFR " + fromRemoteFileName);
var currentMsg = tempMessageList.Last();
returnValue = FTPUtilities.GetMessageReturnValue(currentMsg);
if (returnValue == 350)
{
tempMessageList = connection.SendCommand("RNTO " + toRemoteFileName);
returnValue = FTPUtilities.GetMessageReturnValue(currentMsg);
}
connection.Unlock();
return returnValue;
}
public int SetCurrentDirectory(IFTPConnection connection, string remotePath)
{
if(_cwdIsDirty)
CurrentDirectory = GetCurrentDirectory(connection);
if (remotePath.SameAsCurrentFTPDirectory(CurrentDirectory) && remotePath != MOVEUPDIR) return 220;
connection.Lock();
int returnValue = 0;
string[] tempMessageList = set_directory(connection, remotePath);
returnValue = FTPUtilities.GetMessageReturnValue(tempMessageList.Last());
connection.Unlock();
CurrentDirectory = GetCurrentDirectory(connection);
return returnValue;
}
public void MoveUp(IFTPConnection connection)
{
_cwdIsDirty = true;
connection.Lock();
connection.SendCommand("CWD " + MOVEUPDIR);
connection.Unlock();
}
private static int set_mode(IFTPConnection conn, string mode)
{
conn.Lock();
int returnValue = 0;
string[] tempMessageList = conn.SendCommand(mode);
returnValue = FTPUtilities.GetMessageReturnValue((string)tempMessageList.Last());
conn.Unlock();
return returnValue;
}
private static void set_data_port(IFTPConnection conn, int portNumber)
{
conn.Lock();
int returnValue = 0;
int portHigh = portNumber >> 8;
int portLow = portNumber & 255;
string[] tempMessageList = conn.SendCommand("PORT "
+ FTPUtilities.GetLocalAddressList()[0].ToString().Replace(".", ",")
+ "," + portHigh.ToString() + "," + portLow);
returnValue = FTPUtilities.GetMessageReturnValue((string)tempMessageList.Last());
if (returnValue != 200)
{
throw new Exception((string)tempMessageList.Last());
}
conn.Lock();
}
private static int get_port_number(IFTPConnection conn)
{
int port = 0;
conn.Lock();
switch (conn.Mode)
{
case FTPMode.Active:
var rnd = new Random((int)DateTime.Now.Ticks);
port = DATA_PORT_RANGE_FROM + rnd.Next(DATA_PORT_RANGE_TO - DATA_PORT_RANGE_FROM);
break;
case FTPMode.Passive:
int returnValue = 0;
string[] tempMessageList = conn.SendCommand("PASV");
returnValue = FTPUtilities.GetMessageReturnValue(tempMessageList.Last());
if (returnValue != 227)
{
if (tempMessageList.Last().Length > 4)
{
throw new Exception(tempMessageList.Last());
}
throw new Exception(tempMessageList.Last() + " Passive Mode not implemented");
}
var message = tempMessageList.Last();
int index1 = message.IndexOf(",", 0);
int index2 = message.IndexOf(",", index1 + 1);
int index3 = message.IndexOf(",", index2 + 1);
int index4 = message.IndexOf(",", index3 + 1);
int index5 = message.IndexOf(",", index4 + 1);
int index6 = message.IndexOf(")", index5 + 1);
port = 256 * int.Parse(message.Substring(index4 + 1, index5 - index4 - 1)) + int.Parse(message.Substring(index5 + 1, index6 - index5 - 1));
break;
}
conn.Unlock();
return port;
}