/// <summary>
/// Waits for a connection from the server and then sets the timeout
/// when the connection is made.
/// </summary>
internal virtual void AcceptConnection()
{
if (acceptedSock == null)
{
acceptedSock = sock.Accept(timeout);
SetSocketTimeout(acceptedSock, timeout);
log.Debug("AcceptConnection() succeeded");
}
}
/// <summary>
/// Set the remote server type
/// </summary>
/// <param name="system">SYST string</param>
public void SetParser(string system)
{
parserDetected = false;
this.system = system != null?system.Trim() : null;
if (system != null)
{
if (system.ToUpper().StartsWith(WINDOWS_STR))
{
log.Debug("Selected Windows parser");
parser = windows;
}
else if (system.ToUpper().IndexOf(UNIX_STR) >= 0 ||
system.ToUpper().IndexOf(AIX_STR) >= 0)
{
log.Debug("Selected UNIX parser");
parser = unix;
}
else if (system.ToUpper().IndexOf(VMS_STR) >= 0)
{
log.Debug("Selected VMS parser");
parser = vms;
}
else if (system.ToUpper().IndexOf(OS400_STR) >= 0)
{
log.Debug("Selected OS/400 parser");
parser = os400;
}
else
{
parser = unix;
log.Warn("Unknown SYST '" + system + "' - defaulting to Unix parsing");
}
}
else
{
parser = unix;
log.Debug("Defaulting to Unix parsing");
}
}
/// <summary> Parse an array of raw file information returned from the
/// FTP server
///
/// </summary>
/// <param name="files"> array of strings
/// </param>
/// <returns> array of FTPFile objects
/// </returns>
internal virtual FTPFile[] Parse(string[] files)
{
FTPFile[] temp = new FTPFile[files.Length];
// quick check if no files returned
if (files.Length == 0)
{
return(temp);
}
int count = 0;
for (int i = 0; i < files.Length; i++)
{
try
{
FTPFile file = parser.Parse(files[i]);
// we skip null returns - these are duff lines we know about and don't
// really want to throw an exception
if (file != null)
{
temp[count++] = file;
}
}
catch (FormatException ex)
{
log.Debug(ex.Message);
if (rotateParsersOnFail && count == 0)
{
// first error, let's try swapping parsers
RotateParsers();
FTPFile file = parser.Parse(files[i]);
if (file != null)
{
temp[count++] = file;
}
}
// rethrow
else
{
throw ex;
}
}
}
FTPFile[] result = new FTPFile[count];
Array.Copy(temp, 0, result, 0, count);
return(result);
}
/// <summary>
/// Log a message, checking for passwords
/// </summary>
/// <param name="msg">
/// message to log
/// </param>
/// <param name="command">
/// true if a response, false otherwise
/// </param>
internal virtual void Log(string msg, bool command)
{
if (msg.StartsWith(PASSWORD_MESSAGE))
{
msg = PASSWORD_MESSAGE + " ********";
}
log.Debug(msg);
if (command)
{
if (CommandSent != null)
{
CommandSent(this, new FTPMessageEventArgs(msg));
}
}
else
{
if (ReplyReceived != null)
{
ReplyReceived(this, new FTPMessageEventArgs(msg));
}
}
}
/// <summary> Helper method for dumping a listing
///
/// </summary>
/// <param name="list"> directory listing to print
/// </param>
internal void Print(string[] list)
{
log.Debug("Directory listing:");
for (int i = 0; i < list.Length; i++)
{
log.Debug(list[i]);
}
log.Debug("Listing complete");
}
