private void ListenToUDP()
{
IPEndPoint local = new IPEndPoint(userIP, receivePort);
IPEndPoint remote = new IPEndPoint(IPAddress.Broadcast, sendPort);
UdpClient udpReceiver = new UdpClient(local);
udpListen = true;
while (udpListen)
{
byte[] message = udpReceiver.Receive(ref remote);
string userName = Encoding.UTF8.GetString(message);
User newUser = new User(userName, remote.Address, tcpPort);
if (Users.Find(x => x.userIP.ToString() == remote.Address.ToString()) == null &&
userIP.ToString() != remote.Address.ToString())
{
newUser.Connect();
Message tcpMessage = new Message((int)TMessage.Connect, this.userName);
newUser.SendMessage(tcpMessage);
lock (locker)
{
Users.Add(newUser);
}
Task.Run(() => ListenUser(newUser));
synchronizationContext.Post(
delegate
{
AddUserMessage($"{newUser.userName} [{newUser.userIP}] ({DateTime.Now}) joined the chat.\n");
history.Append($"{newUser.userName} [{newUser.userIP}] ({DateTime.Now}) joined the chat.\n");
}, null);
}
}
udpReceiver.Close();
}
private void ListenToUDP()
{
IPEndPoint localEP = new IPEndPoint(userIP, RECEIVE_PORT);
IPEndPoint remoteEP = new IPEndPoint(IPAddress.Any, SEND_PORT);
UdpClient udpReceiver = new UdpClient(localEP);
ShouldUDPListen = true;
while (ShouldUDPListen)
{
byte[] message = udpReceiver.Receive(ref remoteEP);
string userName = Encoding.UTF8.GetString(message);
User newUser = new User(userName, remoteEP.Address, TCP_PORT);
if (Users.Find(x => x.userIP.ToString() == remoteEP.Address.ToString()) == null && userIP.ToString() != remoteEP.Address.ToString())
{
newUser.Connect();
Message tcpMessage = new Message(NAME_TRANSMISSION, (byte)this.userName.Length, this.userName);
newUser.SendMessage(tcpMessage);
lock (Connection._locker)
{
Users.Add(newUser);
}
Thread thread = new Thread(() => ListenUser(newUser));
thread.Start();
synchronizationContext.Post(
delegate
{
display($"{newUser.userName} [{newUser.userIP}] ({DateTime.Now}) joined the chat.\n");
history.Append($"{newUser.userName} [{newUser.userIP}] ({DateTime.Now}) joined the chat.\n");
}, null);
}
}
udpReceiver.Close();
}
