private static void TextMessageReceived(NetworkingPlayer player, Text frame, NetWorker sender)
{
try
{
System.Console.WriteLine($"TextMessageReceived() was called.");
System.Console.WriteLine($"Call came from player with network-id {player.NetworkId}");
System.Console.WriteLine($"Call data were as follows:");
System.Console.WriteLine($"{frame.ToString()}");
var json = JSON.Parse(frame.ToString());
if (json["register"] != null)
{
// A host is coming to register with this NAT server, thus declaring itself open for business.
// Remember, when the host _itself_ moves through its own firewall it signals to its operating
// system that it's safe to do traffic on that port - including _receiving_ traffic directly from clients.
string address = player.IPEndPointHandle.Address.ToString();
ushort port = json["register"]["port"].AsUShort;
if (!hosts.ContainsKey(address))
{
hosts.Add(address, new List <Host>());
}
if (CheckAndUpdateRegisteredHost(player, address, port))
{
return;
}
RegisterNewHost(player, address, port);
System.Console.WriteLine($"New host was registrered on {address}:{port}");
}
else if (json["host"] != null && json["port"] != null)
{
// A client is coming to register with this NAT server, i.e. it's looking for a host it believes it knows about.
// So let's see if we can find a suitable host for it.
server.Disconnect(player, false);
string addresss = json["host"];
ushort port = json["port"].AsUShort;
ushort listeningPort = json["clientPort"].AsUShort;
addresss = NetWorker.ResolveHost(addresss, port).Address.ToString();
if (!hosts.ContainsKey(addresss))
{
return;
}
Host foundHost = new Host();
foreach (Host iHost in hosts[addresss])
{
if (iHost.port == port)
{
foundHost = iHost;
break;
}
}
if (string.IsNullOrEmpty(foundHost.host))
{
return;
}
JSONNode obj = JSONNode.Parse("{}");
obj.Add("host", new JSONData(player.IPEndPointHandle.Address.ToString().Split(':')[0]));
obj.Add("port", new JSONData(listeningPort));
JSONClass sendObj = new JSONClass();
sendObj.Add("nat", obj);
Text notifyFrame = Text.CreateFromString(server.Time.Timestep, sendObj.ToString(), false, Receivers.Target, MessageGroupIds.NAT_ROUTE_REQUEST, false);
server.Send(foundHost.player, notifyFrame, true);
System.Console.WriteLine($"The client was sent info about a host - gg ahead.");
}
}
catch (Exception ex)
{
System.Console.WriteLine($"An error occured in call to TextMessageReceived().");
System.Console.WriteLine($"Call came from player with network-id {player.NetworkId}.");
System.Console.WriteLine($"Error was '{ex.Message}'.");
System.Console.WriteLine($"Calling server.Disconnect().");
server.Disconnect(player, true);
}
}
private static void TextMessageReceived(NetworkingPlayer player, Text frame, NetWorker sender)
{
try
{
var json = JSON.Parse(frame.ToString());
if (json["register"] != null)
{
string address = player.IPEndPointHandle.Address.ToString();
ushort port = json["register"]["port"].AsUShort;
if (!hosts.ContainsKey(address))
{
hosts.Add(address, new List <Host>());
}
foreach (Host host in hosts[address])
{
// This host is already registered
if (host.port == port)
{
return;
}
}
System.Console.Write("Hosted Server received: ");
System.Console.Write(address);
System.Console.Write(":");
System.Console.Write(port);
System.Console.Write(" received");
System.Console.Write(System.Environment.NewLine);
hosts[address].Add(new Host(player, address, port));
}
else if (json["host"] != null && json["port"] != null)
{
server.Disconnect(player, false);
string addresss = json["host"];
ushort port = json["port"].AsUShort;
ushort listeningPort = json["clientPort"].AsUShort;
addresss = NetWorker.ResolveHost(addresss, port).Address.ToString();
if (!hosts.ContainsKey(addresss))
{
return;
}
Host foundHost = new Host();
foreach (Host iHost in hosts[addresss])
{
if (iHost.port == port)
{
foundHost = iHost;
break;
}
}
if (string.IsNullOrEmpty(foundHost.host))
{
return;
}
JSONNode obj = JSONNode.Parse("{}");
obj.Add("host", new JSONData(player.IPEndPointHandle.Address.ToString().Split(':')[0]));
obj.Add("port", new JSONData(listeningPort));
JSONClass sendObj = new JSONClass();
sendObj.Add("nat", obj);
Text notifyFrame = Text.CreateFromString(server.Time.Timestep, sendObj.ToString(), false, Receivers.Target, MessageGroupIds.NAT_ROUTE_REQUEST, false);
server.Send(foundHost.player, notifyFrame, true);
}
}
catch
{
server.Disconnect(player, true);
}
}