public void TestPingTimestamp()
{
var timestamp = new TimeSpan(12, 34, 56);
var ping = new PingRequestMessage();
ping.Timestamp = timestamp;
var pingData = new byte[65536];
var pingWriter = NetworkBinaryWriter.Create(new MemoryStream(pingData));
ping.Serialize(pingWriter);
var ping2 = (PingRequestMessage)Message.Deserialize(new ArraySegment<byte>(pingData), TimeSpan.Zero);
var totalGameTime = new TimeSpan(23, 45, 67);
var frameNumber = 123;
var pong = ping2.GetPingReplyMessage(totalGameTime, frameNumber);
var pongData = new byte[65536];
var pongWriter = NetworkBinaryWriter.Create(new MemoryStream(pongData));
pong.Serialize(pongWriter);
var pong2 = (PingReplyMessage)Message.Deserialize(new ArraySegment<byte>(pongData), TimeSpan.Zero);
Assert.AreEqual(timestamp, pong2.Timestamp);
Assert.AreEqual(totalGameTime, pong2.TotalGameTimeOnReply);
Assert.AreEqual(frameNumber, pong2.FrameNumberOnReply);
}
private void HandleGameServerHandshakeRequestTCP(GameServerHandshakeRequestTCP mess)
{
var net = Game.NetworkEngine;
string clientDiff, serverDiff;
int diffIndex;
bool differ = MiscHelper.FirstDifference(mess.CanonicalStrings, CanonicalString.CanonicalForms, out clientDiff, out serverDiff, out diffIndex);
var connection = net.GetGameClientConnection(mess.ConnectionID);
if (differ)
{
var mismatchInfo = string.Format("First mismatch is index: {0}, client: {1}, server: {2}",
diffIndex, clientDiff ?? "<missing>", serverDiff ?? "<missing>");
var extraInfo = diffIndex == 0 ? "" : string.Format(", client previous: {0}, server previous: {1}",
mess.CanonicalStrings[diffIndex - 1], CanonicalString.CanonicalForms[diffIndex - 1]);
Log.Write("Client's CanonicalStrings don't match ours. " + mismatchInfo + extraInfo);
var reply = new ConnectionClosingMessage { Info = "of version mismatch (canonical strings).\nPlease install the latest version from\nwww.assaultwing.com" };
connection.Send(reply);
net.DropClient(mess.ConnectionID);
}
else
{
connection.ConnectionStatus.ClientKey = mess.GameClientKey;
connection.ConnectionStatus.State = ConnectionUtils.GameClientStatus.StateType.Active;
// Send dummy UDP packets to probable UDP end points of the client to increase
// probability of our NAT forwarding UDP packets from the client to us.
var ping = new PingRequestMessage();
for (int port = NetworkEngine.UDP_CONNECTION_PORT_FIRST; port <= NetworkEngine.UDP_CONNECTION_PORT_LAST; port++)
net.UDPSocket.Send(ping.Serialize, new IPEndPoint(net.GetConnection(mess.ConnectionID).RemoteTCPEndPoint.Address, port));
}
}
private void SendPing()
{
if (NowRealTime < _nextPingSend) return;
_nextPingSend = NowRealTime + PING_INTERVAL;
var pingSend = new PingRequestMessage { Timestamp = NowRealTime };
BaseConnection.Send(pingSend);
}