private void ConnectBtn_Click(object sender, EventArgs e)
{
if (addressBox.Text.Length != 0 && addressBox.Text.Length <= 15)
{
if ((new Regex(@"^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$")).IsMatch(addressBox.Text))
{
if (userBox.Text.Length == 0)
{
MessageBox.Show("Invalid Username");
return;
}
addressBox.ForeColor = Color.Green;
string temp = addressBox.Text;
Console.WriteLine(temp);
string msg = "HELL:" + GetIPAddress() + ":8001:" + userBox.Text;
// IPAddress ipAddress = IPAddress.Parse(temp);
try
{
tcpClient = new TcpClient(temp, 8001);
msg = "HELL:" + GetIPAddress() + ":8001:" + userBox.Text;
Console.WriteLine(msg);
Byte[] data = System.Text.Encoding.ASCII.GetBytes(msg);
try
{
///////
NetworkStream stream = tcpClient.GetStream();
// var myAddress = IPAddress.Any.ToString();
///////
stream.Write(data, 0, data.Length);
Console.WriteLine("Sent: {0}", msg);
//ODPOWIEDŹ
data = new Byte[256];
String responseData = String.Empty;
Int32 bytes = stream.Read(data, 0, data.Length);
responseData = System.Text.Encoding.ASCII.GetString(data, 0, bytes);
Console.WriteLine("Response:" + responseData);
string[] words = responseData.Split(':');
if (words[0] == "PORT" && Int32.Parse(words[1]) >= 1024 && Int32.Parse(words[1]) <= 65535)
{
msg = "OKAY:" + words[1];
data = System.Text.Encoding.ASCII.GetBytes(msg);
stream.Write(data, 0, data.Length);
clientForm = new ClientForm(Int32.Parse(words[1]), temp, userBox.Text, tcpClient);
//stream.Close();
//tcpClient.Close();
clientForm.Show();
this.Hide();
}
else
{
msg = "NACK";
Console.WriteLine("OOPS");
data = System.Text.Encoding.ASCII.GetBytes(msg);
stream.Write(data, 0, data.Length);
stream.Close();
tcpClient.Close();
}
// ZAMYKANIE I OTWARCIE NA NOWYM PORCIE
}
catch (System.NullReferenceException exception)
{
Console.WriteLine("NULLReferenceException: {0}", exception);
MessageBox.Show("Nie znaleziono serwera o podanym adresie");
}
catch (Exception ex)
{
Console.WriteLine("Another exception: {0}", ex);
}
/*
* TcpListener l = new TcpListener(IPAddress.Loopback, 0);
* l.Start();
* int port = ((IPEndPoint)l.LocalEndpoint).Port;
* Console.WriteLine(port);
* l.Stop();
*
*/
}
catch (SocketException se)
{
//Console.WriteLine("NULLReferenceException: {0}", se);
MessageBox.Show("Unable to connect to the server");
}
}
else
{
addressBox.ForeColor = Color.Red;
MessageBox.Show("Invalid address");
}
}
else
{
MessageBox.Show("Invalid address");
}
}
public Client(ClientForm f)
{
ui = f;
}