void server_PacketReceived(object sender, UdpPacketReceivedEventArgs e)
{
var packet = e.Packet;
var reader = packet.GetReader();
var request = new IPRequestPacket1(reader);
if (request.Type3 == 0x14) // only type we handle right now?
{
Log.Debug("Handling IP request from " + request.XUID.ToString("X16"));
bool breakNAT = false;
if (!Client.IsHostAllowed(request.XUID))
{
breakNAT = true;
}
/*var lclient = Client.Get(request.XUID);
* bool breakGame = false;
* if (lclient.GameVersion != 0)
* {
* if (!Client.IsVersionAllowed(lclient.GameVersion, lclient.GameBuild))
* {
* breakGame = true;
* }
* }*/
// we don't have what client thinks is his port, but this is just an override anyway
var responsePacket = new IPResponsePacket1(packet.GetSource(), request.Sequence, false, breakNAT);
var response = packet.MakeResponse();
responsePacket.Write(response.GetWriter());
response.Send();
if (!breakNAT && packet.GetSource().Port >= 28960 && packet.GetSource().Port <= 29960)
{
responsePacket = new IPResponsePacket1(packet.GetSource(), request.Sequence, true, false);
response = packet.MakeResponse();
responsePacket.Write(response.GetWriter());
response.Send();
}
}
// and afterwards, update client's stuff
var client = Client.Get(request.XUID);
client.SetLastTouched();
}
public void HandleCommand(MatchServer server, Client client, UdpPacket packet, MatchBaseRequestPacket baseRequest)
{
var reader = packet.GetReader();
var request = new MatchRegisterHostingRequestPacket(reader);
var playlist = server.Playlist;
var challengePassed = false;
if (MatchRequestHostingHandler.Challenges.ContainsKey(client.XUID))
{
var oldChallenge = MatchRequestHostingHandler.Challenges[client.XUID];
if (request.Challenge == oldChallenge)
{
challengePassed = true;
}
}
if (!challengePassed)
{
Log.Warn(string.Format("Client {0} replied with a wrong host registration challenge.", client.XUID.ToString("X16")));
}
var existingMatches = from session in server.Sessions
where session.HostXUID == client.XUID
select session;
if (existingMatches.Count() > 0)
{
var match = existingMatches.First();
match.GameID = request.Session.GameID;
match.SetLastTouched();
Log.Debug(string.Format("Updated match as registered by {0}", client.XUID.ToString("X16")));
}
else
{
if (!Client.IsHostAllowed(client.XUID))
{
Log.Info(string.Format("Non-allowed client (XUID {0}) tried to register lobby", client.XUID.ToString("X16")));
return;
}
else if (!Client.IsHostAllowed(request.Session.ExternalIP.Address))
{
Log.Info(string.Format("Non-allowed client (IP {0}) tried to register lobby", request.Session.ExternalIP));
return;
}
else
{
request.Session.Unclean = (CIServer.IsUnclean(client.XUID, packet.GetSource().Address) || CIServer.IsUnclean(client.XUIDAlias, packet.GetSource().Address));
request.Session.HostXUID = client.XUID;
request.Session.Country = "";
try
{
var countrycode = geo.GetCountryCode(request.Session.ExternalIP.Address);
Console.WriteLine("Country code of IP address " + request.Session.ExternalIP.ToString() + ": " + countrycode.ToString());
request.Session.Country = countrycode;
}
catch { }
server.Sessions.Add(request.Session);
Log.Info(string.Format("Registered session by {0}; lobby at {1}", client.XUID.ToString("X16"), request.Session.ExternalIP));
}
}
// this response appears wrong for now
var responsePacket = new MatchRegisterHostingResponsePacket(request.ReplyType, request.Sequence);
var response = packet.MakeResponse();
responsePacket.Write(response.GetWriter());
response.Send();
}
