private void HandleRakNetMessage(IPEndPoint senderEndpoint, UnconnectedPing incoming)
{
//TODO: This needs to be verified with RakNet first
//response.sendpingtime = msg.sendpingtime;
//response.sendpongtime = DateTimeOffset.UtcNow.Ticks / TimeSpan.TicksPerMillisecond;
if (IsEdu)
{
var packet = UnconnectedPong.CreateObject();
packet.serverId = senderEndpoint.Address.Address + senderEndpoint.Port;
packet.pingId = incoming.pingId;
packet.serverName = MotdProvider.GetMotd(ServerInfo, senderEndpoint, true);
var data = packet.Encode();
packet.PutPool();
TraceSend(packet);
SendData(data, senderEndpoint);
}
{
var packet = UnconnectedPong.CreateObject();
packet.serverId = senderEndpoint.Address.Address + senderEndpoint.Port;
packet.pingId = incoming.pingId;
packet.serverName = MotdProvider.GetMotd(ServerInfo, senderEndpoint);
var data = packet.Encode();
packet.PutPool();
TraceSend(packet);
SendData(data, senderEndpoint);
}
return;
}
private void HandleQuery(byte[] receiveBytes, IPEndPoint senderEndpoint)
{
if (!Config.GetProperty("EnableQuery", false))
{
return;
}
if (receiveBytes[0] != 0xFE || receiveBytes[1] != 0xFD)
{
return;
}
byte packetId = receiveBytes[2];
switch (packetId)
{
case 0x09:
{
byte[] buffer = new byte[17];
// ID
buffer[0] = 0x09;
// Sequence number
buffer[1] = receiveBytes[3];
buffer[2] = receiveBytes[4];
buffer[3] = receiveBytes[5];
buffer[4] = receiveBytes[6];
// Textual representation of int32 (token) with null terminator
string str = new Random().Next().ToString(CultureInfo.InvariantCulture) + "\x00";
Buffer.BlockCopy(str.ToCharArray(), 0, buffer, 5, 11);
_listener.Send(buffer, buffer.Length, senderEndpoint);
break;
}
case 0x00:
{
using (var stream = MemoryStreamManager.GetStream())
{
bool isFullStatRequest = receiveBytes.Length == 15;
if (Log.IsInfoEnabled)
{
Log.InfoFormat("Full request: {0}", isFullStatRequest);
}
// ID
stream.WriteByte(0x00);
// Sequence number
stream.WriteByte(receiveBytes[3]);
stream.WriteByte(receiveBytes[4]);
stream.WriteByte(receiveBytes[5]);
stream.WriteByte(receiveBytes[6]);
//{
// string str = "splitnum\0";
// byte[] bytes = Encoding.ASCII.GetBytes(str.ToCharArray());
// stream.Write(bytes, 0, bytes.Length);
//}
MotdProvider.GetMotd(ServerInfo, senderEndpoint); // Force update the player counts :-)
var data = new Dictionary <string, string>
{
{ "splitnum", "" + (char)128 },
{ "hostname", "Minecraft PE Server" },
{ "gametype", "SMP" },
{ "game_id", "MINECRAFTPE" },
{ "version", "0.15.0" },
{ "server_engine", "MiNET v1.0.0" },
{ "plugins", "MiNET v1.0.0" },
{ "map", "world" },
{ "numplayers", MotdProvider.NumberOfPlayers.ToString() },
{ "maxplayers", MotdProvider.MaxNumberOfPlayers.ToString() },
{ "whitelist", "off" },
//{"hostip", "192.168.0.1"},
//{"hostport", "19132"}
};
foreach (KeyValuePair <string, string> valuePair in data)
{
string key = valuePair.Key + "\x00" + valuePair.Value + "\x00";
byte[] bytes = Encoding.ASCII.GetBytes(key.ToCharArray());
stream.Write(bytes, 0, bytes.Length);
}
{
string str = "\x00\x01player_\x00\x00";
byte[] bytes = Encoding.ASCII.GetBytes(str.ToCharArray());
stream.Write(bytes, 0, bytes.Length);
}
// End the stream with 0 byte
stream.WriteByte(0);
var buffer = stream.ToArray();
_listener.Send(buffer, buffer.Length, senderEndpoint);
}
break;
}
default:
return;
}
}
private void HandleRakNetMessage(byte[] receiveBytes, IPEndPoint senderEndpoint, byte msgId)
{
DefaultMessageIdTypes msgIdType = (DefaultMessageIdTypes)msgId;
Package message = PackageFactory.CreatePackage(msgId, receiveBytes);
if (message == null)
{
if (!_badPacketBans.ContainsKey(senderEndpoint.Address))
{
_badPacketBans.Add(senderEndpoint.Address, true);
}
Log.ErrorFormat("Receive bad packet with ID: {0} (0x{0:x2}) {2} from {1}", msgId, senderEndpoint.Address, (DefaultMessageIdTypes)msgId);
return;
}
message.Source = "RakNet";
TraceReceive(message);
switch (msgIdType)
{
case DefaultMessageIdTypes.ID_UNCONNECTED_PING:
case DefaultMessageIdTypes.ID_UNCONNECTED_PING_OPEN_CONNECTIONS:
{
UnconnectedPing incoming = (UnconnectedPing)message;
//TODO: This needs to be verified with RakNet first
//response.sendpingtime = msg.sendpingtime;
//response.sendpongtime = DateTimeOffset.UtcNow.Ticks / TimeSpan.TicksPerMillisecond;
var packet = UnconnectedPong.CreateObject();
packet.serverId = 22345;
packet.pingId = incoming.pingId;
packet.serverName = MotdProvider.GetMotd(ServerInfo);
var data = packet.Encode();
packet.PutPool();
TraceSend(packet);
SendData(data, senderEndpoint, new object());
break;
}
case DefaultMessageIdTypes.ID_OPEN_CONNECTION_REQUEST_1:
{
OpenConnectionRequest1 incoming = (OpenConnectionRequest1)message;
Log.DebugFormat("New connection from: {0} {1}", senderEndpoint.Address, senderEndpoint.Port);
lock (_playerSessions)
{
// Already connecting, then this is just a duplicate
if (_connectionAttemps.ContainsKey(senderEndpoint))
{
DateTime created;
_connectionAttemps.TryGetValue(senderEndpoint, out created);
if (DateTime.UtcNow < created + TimeSpan.FromSeconds(3))
{
return;
}
}
//PlayerNetworkSession session;
//if (_playerSessions.TryGetValue(senderEndpoint, out session))
//{
// Log.DebugFormat("Reconnection detected from {0}. Removing old session and disconnecting old player.", senderEndpoint.Address);
// Player oldPlayer = session.Player;
// if (oldPlayer != null)
// {
// oldPlayer.Disconnect("Reconnecting.");
// }
// else
// {
// _playerSessions.TryRemove(session.EndPoint, out session);
// }
//}
if (!_connectionAttemps.ContainsKey(senderEndpoint))
{
_connectionAttemps.Add(senderEndpoint, DateTime.UtcNow);
}
}
var packet = OpenConnectionReply1.CreateObject();
packet.serverGuid = 12345;
packet.mtuSize = incoming.mtuSize;
packet.serverHasSecurity = 0;
var data = packet.Encode();
packet.PutPool();
TraceSend(packet);
SendData(data, senderEndpoint, new object());
break;
}
case DefaultMessageIdTypes.ID_OPEN_CONNECTION_REQUEST_2:
{
OpenConnectionRequest2 incoming = (OpenConnectionRequest2)message;
PlayerNetworkSession session;
lock (_playerSessions)
{
if (_connectionAttemps.ContainsKey(senderEndpoint))
{
_connectionAttemps.Remove(senderEndpoint);
}
else
{
Log.ErrorFormat("Unexpected connection request packet from {0}.", senderEndpoint.Address);
return;
}
//PlayerNetworkSession session;
if (_playerSessions.TryGetValue(senderEndpoint, out session))
{
Log.WarnFormat("Reconnection detected from {0}. Removing old session and disconnecting old player.", senderEndpoint.Address);
Player oldPlayer = session.Player;
if (oldPlayer != null)
{
oldPlayer.Disconnect("Reconnecting.");
}
else
{
_playerSessions.TryRemove(session.EndPoint, out session);
}
}
if (_playerSessions.TryGetValue(senderEndpoint, out session))
{
// Already connecting, then this is just a duplicate
if (session.State == ConnectionState.Connecting /* && DateTime.UtcNow < session.LastUpdatedTime + TimeSpan.FromSeconds(2)*/)
{
return;
}
Log.ErrorFormat("Unexpected session from {0}. Removing old session and disconnecting old player.", senderEndpoint.Address);
Player oldPlayer = session.Player;
if (oldPlayer != null)
{
oldPlayer.Disconnect("Reconnecting.");
}
else
{
_playerSessions.TryRemove(session.EndPoint, out session);
}
}
session = new PlayerNetworkSession(null, senderEndpoint)
{
State = ConnectionState.Connecting,
LastUpdatedTime = DateTime.UtcNow,
Mtuize = incoming.mtuSize
};
_playerSessions.TryAdd(senderEndpoint, session);
}
Player player = PlayerFactory.CreatePlayer(this, senderEndpoint, incoming.mtuSize);
player.ClientGuid = incoming.clientGuid;
player.NetworkSession = session;
session.Player = player;
var reply = OpenConnectionReply2.CreateObject();
reply.serverGuid = 12345;
reply.mtuSize = incoming.mtuSize;
reply.doSecurityAndHandshake = new byte[0];
var data = reply.Encode();
reply.PutPool();
TraceSend(reply);
SendData(data, senderEndpoint, session.SyncRoot);
break;
}
default:
if (!_badPacketBans.ContainsKey(senderEndpoint.Address))
{
_badPacketBans.Add(senderEndpoint.Address, true);
}
Log.ErrorFormat("Receive unexpected packet with ID: {0} (0x{0:x2}) {2} from {1}", msgId, senderEndpoint.Address, (DefaultMessageIdTypes)msgId);
break;
}
message.PutPool();
}