private void btnListen_Click(object sender, EventArgs e)
{
ushort port = GetPortSafe();
string password = txtPassword.Text;
if (port == 0)
{
MessageBox.Show("Please enter a valid port > 0.", "Please enter a valid port", MessageBoxButtons.OK,
MessageBoxIcon.Warning);
return;
}
if (password.Length < 3)
{
MessageBox.Show("Please enter a secure password with more than 3 characters.",
"Please enter a secure password", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (btnListen.Text == "Start listening" && !_listenServer.Listening)
{
try
{
AES.PreHashKey(password);
if (chkUseUpnp.Checked)
{
if (!UPnP.IsDeviceFound)
{
MessageBox.Show("No available UPnP device found!", "No UPnP device", MessageBoxButtons.OK,
MessageBoxIcon.Information);
}
else
{
int outPort;
UPnP.CreatePortMap(port, out outPort);
if (port != outPort)
{
MessageBox.Show("Creating a port map with the UPnP device failed!\nPlease check if your device allows to create new port maps.", "Creating port map failed", MessageBoxButtons.OK,
MessageBoxIcon.Warning);
}
}
}
if (chkNoIPIntegration.Checked)
{
NoIpUpdater.Start();
}
_listenServer.Listen(port);
}
finally
{
btnListen.Text = "Stop listening";
ncPort.Enabled = false;
txtPassword.Enabled = false;
}
}
else if (btnListen.Text == "Stop listening" && _listenServer.Listening)
{
try
{
_listenServer.Disconnect();
UPnP.DeletePortMap(port);
}
finally
{
btnListen.Text = "Start listening";
ncPort.Enabled = true;
txtPassword.Enabled = true;
}
}
}