void ProcessRemotePacket(IPEndPoint endPoint, byte[] packet)
{
if (LocalIPSet.Contains(endPoint.Address))
{
return;
}
// store peer last seen
remotePeers[endPoint] = DateTime.UtcNow;
var message = bcast.HandlePacket(endPoint, packet, out bool isNew, out BroadcastPeer <ProxyPeerInfo> peer);
if (message == null) // message not yet complete / invalid
{
return;
}
var pid = peer.fakePid;
if (message == "" && peer != null)
{
Debug.WriteLine("Removing peer " + peer.peerId);
bcast.peers.Remove(peer.peerId);
}
// change advertized ip to ip we've received this from
message = new Regex("(\"internalIP\":[{]\"S\":\")([^\"]+)(\"[}])").Replace(message,
"${1}" + endPoint.Address + "$3");
if (isNew)
{
MatchInfo matchInfo = null;
var msg = ParseMessage(message);
if (msg.HasPrivateMatchData || msg.ticketType == "match")
{
matchInfo = new MatchInfo(message);
}
string ticketType = message == "" ? "done" : msg.ticketType;
AddMessage(debug ? peer.lastNewSeq + " Received match " + ticketType + " " + msg.ticket +
", forward to " + String.Join(", ", BroadcastEndpoints.Select(x => x.ToString())) + " pid " + pid :
"Received " + (msg.IsRequest ? msg.HasPrivateMatchData ? "create " : "join " : "") + "match " + ticketType +
(matchInfo != null ? " (" + matchInfo + ")" : ""));
if (msg.IsRequest && config.TryGetValue("isServer", out object isServer) && (bool)isServer && matchInfo != null)
{
AddMessage("Updating tracker at " + config["trackerBaseUrl"] + " with the match information.");
TrackerPost("", new MJDict {
{ "name", config["serverName"] },
{ "notes", config["notes"] },
{ "numPlayers", matchInfo.PlayerCount },
{ "maxNumPlayers", matchInfo.PrivateMatchData.MaxPlayers },
{ "map", matchInfo.PrivateMatchData.LevelName },
{ "mode", matchInfo.PrivateMatchData.GameMode },
{ "gameStarted", DateTime.UtcNow.ToString("o") }
});
}
}
else
{
spinner.Spin();
}
Debug.WriteLine("Received " + ParseMessage(message).ticketType + " forward to " + String.Join(", ", BroadcastEndpoints.Select(x => x.ToString())) + " pid " + pid);
bcast.SendMulti(message, localSocket.Client, BroadcastEndpoints, pid, isNew);
}
void ProcessLocalPacket(IPEndPoint endPoint, byte[] packet)
{
if (!LocalIPSet.Contains(endPoint.Address)) // v0.2 policy: only accept local packets, better for multiple olproxies on LAN
{
return;
}
var pktPid = BroadcastHandler <ProxyPeerInfo> .GetPacketPID(packet);
if (bcast.activeFakePids.Contains(pktPid)) // ignore packets sent by ourself
{
return;
}
// v0.2 policy: only accept packets from single local ip, allow ip change if idle for 10 seconds
var now = DateTime.UtcNow;
var timeout = now.AddSeconds(-10);
if (curLocalIPLast < timeout)
{
if (debug && !endPoint.Address.Equals(curLocalIP))
{
AddMessage("Using local address " + endPoint.Address);
}
curLocalIP = endPoint.Address;
}
curLocalIPLast = now;
if (!endPoint.Address.Equals(curLocalIP))
{
return;
}
//if (LocalIPSet.Contains(endPoint.Address)) // treat all local ips as same
// endPoint.Address = FirstLocalIP;
var msgStr = bcast.HandlePacket(endPoint, packet, out bool isNew, out BroadcastPeer <ProxyPeerInfo> peer);
if (msgStr == null) // message not yet complete / invalid
{
return;
}
var msg = ParseMessage(msgStr);
if (msg.IsRequest)
{
var adr = FindPasswordAddress(msg.Password, out string hostname);
if (adr == null)
{
return;
}
var destEndPoint = new IPEndPoint(adr, remotePort);
if (isNew)
{
AddMessage(debug ? pktPid + " " + isNew + " Sending match " + msg.ticketType +
" " + msg.ticket +
" to server " + hostname :
"Sending " + (msg.HasPrivateMatchData ? "create" : "join") + " match " + msg.ticketType +
(msg.HasPrivateMatchData ? " (" + new MatchInfo(msgStr) + ")" : "") +
" to " + hostname);
}
else
{
spinner.Spin();
}
bcast.Send(msgStr, remoteSocket.Client, destEndPoint, pktPid, isNew);
return;
}
else if (msg.IsMatch && isNew)
{
if (config.TryGetValue("isServer", out object isServer) && (bool)isServer)
{
var matchInfo = new MatchInfo(msgStr);
if (playerCount != matchInfo.PlayerCount)
{
playerCount = matchInfo.PlayerCount;
AddMessage("Updating tracker at " + config["trackerBaseUrl"] + " with player count of " + matchInfo.PlayerCount + ".");
TrackerPost("", new MJDict {
{ "numPlayers", matchInfo.PlayerCount }
});
}
}
}
if (!remotePeers.Any())
{
return;
}
var dels = new List <IPEndPoint>();
foreach (var peerEP in remotePeers.Keys)
{
if (remotePeers[peerEP] < timeout)
{
dels.Add(peerEP);
}
}
foreach (var ep in dels)
{
remotePeers.Remove(ep);
}
if (!remotePeers.Any())
{
return;
}
//if (msgStr == "")
// bcast.peers.Remove(new BroadcastPeerId() { source = endPoint, pid = BroadcastHandler.GetPacketPID(packet) });
if (isNew)
{
AddMessage(debug ? pktPid + " Sending match " +
(msgStr == "" ? "done" : msg.ticketType + " " + msg.ticket) +
" to clients " + String.Join(", ", remotePeers.Keys.Select(x => x.Address.ToString())) :
"Sending " + (msgStr != "" ? (msg.HasPrivateMatchData ? "create " : "join ") : "") +
"match " + (msgStr == "" ? "done" : msg.ticketType) +
(msg.HasPrivateMatchData || msg.ticketType == "match" ? " (" + new MatchInfo(msgStr) + ")": ""));
}
else
{
spinner.Spin();
}
Debug.WriteLine((msgStr == "" ? "done" : msg.ticketType) + " to " + String.Join(", ", remotePeers.Keys.Select(x => x.ToString())));
bcast.SendMulti(msgStr, remoteSocket.Client, remotePeers.Keys, pktPid, isNew);
}