void Listening()
{
while (true)
{
User user = new User();
user.socket = server.Accept();
try {
user.username = MyNetwork.Read(user.socket);
} catch {
ShowMsg("A new connection lost when sending username. " + "(" + user.socket.RemoteEndPoint.ToString() + ")");
continue;
}
if (bannedIp.Contains(user.IP)) //Banned IP
{
SendToUser(user, "/refuse_banned");
ShowMsg("A new connection was refused because its IP has been banned. " + "(" + user.username + ", " + user.socket.RemoteEndPoint.ToString() + ")");
continue;
}
if (users.ContainsKey(user.username)) //Duplicate Name
{
SendToUser(user, "/refuse_duplicate");
ShowMsg("A new connection was refused because of its duplicated username. " + "(" + user.username + ", " + user.socket.RemoteEndPoint.ToString() + ")");
continue;
}
users.Add(user.username, user);
ShowMsg("A new connection builded. " + "(" + user.username + ", " + user.socket.RemoteEndPoint.ToString() + ")");
Broadcast(user.username + " entered the chatroom.");
Thread read = new Thread(delegate() { ReadAndBroadcast(user); });
read.IsBackground = true;
read.Start();
}
}
void ReadAndBroadcast(User user)
{
try {
while (true)
{
string text = MyNetwork.Read(user.socket);
Broadcast(user.username + ": " + text);
}
} catch {
Offline(user);
}
}
public override void Send(string text)
{
Thread tSendToServer = new Thread(delegate() {
try {
MyNetwork.Write(client, text);
} catch {
ConnectionLost();
}
});
tSendToServer.IsBackground = true;
tSendToServer.Start();
// Echo text will be sent back by the server
}
public void SendToUser(User user, string text, CallBack callBack = null)
{
Thread tSendToUser = new Thread(delegate() {
try {
MyNetwork.Write(user.socket, text);
} catch {
Offline(user);
}
if (callBack != null)
{
callBack();
}
});
tSendToUser.IsBackground = true;
tSendToUser.Start();
}
void Connect(string ip, int port)
{
try {
client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
client.Connect(ip, port);
MyNetwork.Write(client, username); //Send username
} catch {
ConnectionLost();
return;
}
EnableInput();
Thread tRAA = new Thread(delegate() { ReadAndAct(); });
tRAA.IsBackground = true;
tRAA.Start();
}
void ReadAndAct()
{
while (true)
{
string text;
try {
text = MyNetwork.Read(client);
} catch {
ConnectionLost();
return;
}
if (text[0] == '/')
{
OptCmdFromServer(text);
}
else
{
ShowMsg(text);
}
}
}