public void AddClientConnection(ClientConnection cc)
{
_context.Send(new SendOrPostCallback(delegate(object state)
{
_clientConnections.Add(cc);
cc.ConnectionClosed += new EventHandler<EventArgs>(cc_ConnectionClosed);
cc.DataReceived += new EventHandler<EventArgs>(cc_DataReceived);
cc.AuthentificationFinished += new EventHandler<EventArgs>(cc_AuthentificationFinished);
cc.Start();
}), null);
}
private void TcpListenerMethod()
{
TcpListener _TcpListener = new TcpListener(IPAddress.Any, 8542);
_TcpListener.Start();
while (_doaccept)
{
TcpClient tcpClient = _TcpListener.AcceptTcpClient();
bool allowed = false;
lock (this)
{
if (_doaccept)
{
string ip = tcpClient.Client.RemoteEndPoint.ToString();
ip = ip.Substring(0, ip.IndexOf(':'));
//todo: check connection requests per IP
allowed = (_clientHandler.GetIPConnectionsCount(ip)<10);
if (allowed)
{
ClientConnection cc = new ClientConnection(tcpClient);
cc.IP = ip;
_clientHandler.AddClientConnection(cc);
}
}
}
if (!allowed)
{
try
{
tcpClient.Close();
}
catch
{
}
}
}
}
private void sendMessageToClients(ClientConnection[] clients, ChatMessage msg)
{
byte[] data = msg.ChatMessageData;
foreach (var a in clients)
{
byte[] b = new byte[data.Length];
data.CopyTo(b, 0);
a.SendData(b);
}
}
private void updateAvailableRooms(ClientConnection cc)
{
ClientConnection[] clients;
if (cc == null)
{
clients = (from a in _clientConnections where a.AuthentificationChecked && !a.IsClosed && !string.IsNullOrEmpty(a.Username) select a).ToArray();
}
else
{
clients = new ClientConnection[] { cc };
}
ChatMessage msg = new ChatMessage();
msg.ID = "";
msg.Room = "";
msg.Name = "rooms";
msg.Parameters.Add(string.Format("name{0}", 0), "Lobby");
for (int i = 0; i < _availableRooms.Count; i++)
{
msg.Parameters.Add(string.Format("name{0}", i+1), _availableRooms[i]);
}
sendMessageToClients(clients, msg);
}
void cc_DataReceived(object sender, EventArgs e)
{
_context.Post(new SendOrPostCallback(delegate(object state)
{
ClientConnection cc = sender as ClientConnection;
if (_clientConnections.Contains(cc))
{
try
{
byte[] data = cc.ReadData();
while (data != null && !cc.IsClosed)
{
//parse data
ChatMessage msg = ChatMessage.Parse(data);
if (msg != null)
{
//handle data
if (msg.Name == "signon" && !cc.AuthentificationChecked)
{
//if there is a client with the same ID, then it is a reconnect
var ccid = (from a in _clientConnections where a.ID == msg.ID select a).FirstOrDefault();
if (ccid != null)
{
ccid.Close();
_clientConnections.Remove(ccid);
}
cc.Room = msg.Room;
cc.ID = msg.ID;
cc.Token = msg.Parameters["token"];
cc.Authenticate();
}
else if (cc.AuthentificationChecked && !string.IsNullOrEmpty(cc.Username))
{
//general chat message, broadcast it
if (msg.Name == "txt")
{
ClientConnection[] clients = GetClientsInRoom(cc.Room);
ChatMessage bmsg = new ChatMessage();
bmsg.ID = cc.ID;
bmsg.Room = cc.Room;
bmsg.Name = "txt";
bmsg.Parameters.Add("msg", msg.Parameters["msg"]);
bmsg.Parameters.Add("color", msg.Parameters["color"]);
sendMessageToClients(clients, bmsg);
}
else if (msg.Name == "follow")
{
cc.ActiveGeocache = msg.Parameters["cache"];
cc.CanBeFollowed = bool.Parse(msg.Parameters["canfollow"]);
ClientConnection[] clients = GetClientsInRoom(cc.Room);
ChatMessage bmsg = new ChatMessage();
bmsg.ID = cc.ID;
bmsg.Room = cc.Room;
bmsg.Name = "follow";
bmsg.Parameters.Add("canfollow", msg.Parameters["canfollow"]);
bmsg.Parameters.Add("cache", msg.Parameters["cache"]);
if (msg.Parameters.ContainsKey("selected"))
{
string s = msg.Parameters["selected"];
if (string.IsNullOrEmpty(s))
{
s = "";
cc.SelectionCount = -1;
}
else
{
int cnt;
if (int.TryParse(s, out cnt))
{
cc.SelectionCount = cnt;
}
else
{
s = "";
cc.SelectionCount = -1;
}
}
bmsg.Parameters.Add("selected", s);
}
else
{
cc.SelectionCount = -1;
bmsg.Parameters.Add("selected", "");
}
sendMessageToClients(clients, bmsg);
}
else if (msg.Name == "room")
{
if (cc.Room != msg.Room)
{
//leave old
string prevRoom = cc.Room;
cc.Room = msg.Room;
updateActiveClientsForRoom(prevRoom);
if (availableRoomsChanged())
{
updateAvailableRooms(null);
}
//enter new
updateActiveClientsForRoom(cc.Room);
}
}
else if (msg.Name == "byebye")
{
cc.Close();
break;
}
else if (msg.Name == "reqsel")
{
ClientConnection[] clients = GetClientsInRoom(cc.Room);
ClientConnection destClient = (from c in clients where c.ID == msg.Parameters["clientid"] select c).FirstOrDefault();
if (destClient != null)
{
ChatMessage bmsg = new ChatMessage();
bmsg.ID = cc.ID;
bmsg.Room = cc.Room;
bmsg.Name = "reqsel";
bmsg.Parameters.Add("reqid", msg.Parameters["reqid"]);
bmsg.Parameters.Add("clientid", msg.Parameters["clientid"]);
sendMessageToClients(new ClientConnection[] { destClient }, bmsg);
}
else
{
ChatMessage bmsg = new ChatMessage();
bmsg.ID = cc.ID;
bmsg.Room = cc.Room;
bmsg.Name = "reqselresp";
bmsg.Parameters.Add("reqid", msg.Parameters["reqid"]);
bmsg.Parameters.Add("clientid", msg.Parameters["clientid"]);
bmsg.Parameters.Add("selection", "");
sendMessageToClients(new ClientConnection[] { cc }, bmsg);
}
}
else if (msg.Name == "reqselresp")
{
ClientConnection[] clients = GetClientsInRoom(cc.Room);
ClientConnection destClient = (from c in clients where c.ID == msg.Parameters["clientid"] select c).FirstOrDefault();
if (destClient != null)
{
ChatMessage bmsg = new ChatMessage();
bmsg.ID = cc.ID;
bmsg.Room = cc.Room;
bmsg.Name = "reqselresp";
bmsg.Parameters.Add("reqid", msg.Parameters["reqid"]);
bmsg.Parameters.Add("clientid", msg.Parameters["clientid"]);
bmsg.Parameters.Add("selection", msg.Parameters["selection"]);
sendMessageToClients(new ClientConnection[] { destClient }, bmsg);
}
}
}
}
data = cc.ReadData();
}
}
catch
{
cc.Close();
}
}
}), null);
}
