async static Task <int> Main(string[] args)
{
CancellationTokenSource = new CancellationTokenSource();
cancellationToken = CancellationTokenSource.Token;
Console.CancelKeyPress += Console_CancelKeyPress;
LogLine("Launching Portforwarded.Server, loading configuration");
var(valid, errors) = LoadAndValidateConfig(args);
if (!valid)
{
Console.ForegroundColor = ConsoleColor.Red;
LogLine("Configuration not valid, reasons stated below:", ConsoleColor.Red);
errors.ForEach(l => LogLine(l, ConsoleColor.Red));
return(-1);
}
UPnPDevice = await GetUPnPDevice();
if (UPnPDevice == null)
{
LogLine("No UPnP device found, exiting.", ConsoleColor.Red);
return(-1);
}
if (!WorkingDirectoryExists())
{
LogLine("Configured executable or directory does not exist, please check the path and file variables", ConsoleColor.Red);
return(-1);
}
try
{
await SetupPortforwarding();
await LaunchProcess();
}
catch (Exception ex)
{
LogLine(ex.ToString(), ConsoleColor.Red);
} finally
{
CancellationTokenSource.Dispose();
await TeardownPortforwarding();
}
return(0);
}
/// <summary>
/// Used to get the local IP address, that is on the same network as the UPnP device
/// </summary>
/// <param name="upnpDevice"></param>
/// <returns></returns>
private static IPAddress GetLocalIP(Open.Nat.NatDevice upnpDevice)
{
var hostEntries = Dns.GetHostEntry(Dns.GetHostName());
var ipAddresses = hostEntries.AddressList.Select(i => i.ToString());
var upnpDeviceEndpoint = upnpDevice.ToString().Split("\n").FirstOrDefault(d => d.Contains("EndPoint"));
var endpointAddress = string.Join('.', upnpDeviceEndpoint.Replace("EndPoint: ", "").Trim().Split('.').Take(2)) + ".";
var matchingIPAddress = ipAddresses.FirstOrDefault(a => a.StartsWith(endpointAddress));
if (string.IsNullOrWhiteSpace(matchingIPAddress))
{
return(null);
}
return(IPAddress.Parse(matchingIPAddress));
}