Session SessionFromArgs(string[] args)
{
if (args.Length == 0)
{
return(null);
}
try
{
ConnectionSettings cs = null;
string listener = null;
bool udp = false;
for (int i = 0; i < args.Length; i++)
{
var arg = args[i];
if (arg.Equals("-l", StringComparison.OrdinalIgnoreCase) && args.Length > i + 1)
{
arg = args[++i];
if (int.TryParse(arg, out var port))
{
listener = "0.0.0.0:" + port;
}
else
{
listener = arg;
}
continue;
}
if (arg.Equals("-u", StringComparison.OrdinalIgnoreCase))
{
udp = true;
continue;
}
if (args[i].StartsWith("-"))
{
throw new InvalidOperationException("Invalid switch: " + args[i]);
}
cs = ConnectionSettings.TryCreateFromString(args[i]);
}
udp |= cs?.UDPChecked ?? false; // enable UDP when target was url like udp://1.2.3.4:56
if (Net.TryParseUri(listener, out var listenerUri) && cs == null)
{
cs = ConnectionSettings.New();
}
if (cs != null)
{
cs.TCPChecked = !udp;
cs.UDPChecked = udp;
}
if (listenerUri != null)
{
cs.ServerChecked = true;
cs.ServerSettings.IPAddress = listenerUri.GetTrimmedHost(); // expected IP address
cs.ServerSettings.Port = listenerUri.Port;
}
return(cs?.CreateSession());
}
catch (Exception ex)
{
string msg = "";
if (ex is ValueException)
{
msg = ex.Message + "\n\n";
}
MessageBox.Show(msg + "Usage: swiddler.exe [remote_ip:port] [-l [listener_ip:]port] [-u]", "Error", MessageBoxButton.OK, MessageBoxImage.Exclamation);
Environment.Exit(1);
}
return(null);
}