private static void OnClientConnected(ClientConnectedEventArgs args)
{
// Check header of connection request
//string identifier = args.Message.ReadString();
//if (identifier != token) {
// Console.WriteLine(" - " + "Bad identifier!");
// return;
//}
if (args.Message.LengthBytes < 3)
{
Console.WriteLine(" - " + "Corrupted OnClientConnected message!");
return;
}
byte major = args.Message.ReadByte();
byte minor = args.Message.ReadByte();
byte build = args.Message.ReadByte();
if (major < neededMajor || (major == neededMajor && (minor < neededMinor || (major == neededMajor && build < neededBuild))))
{
Console.WriteLine(" - " + "Incompatible version!");
return;
}
args.Allow = true;
players[args.Message.SenderConnection] = new Player {
};
}
private void OnClientConnected(ClientConnectedEventArgs args)
{
if (args.Message.LengthBytes < 4)
{
args.DenyReason = "incompatible version";
Log.Write(LogType.Error, "Connection of unsupported client (" + args.Message.SenderConnection.RemoteEndPoint + ") was denied!");
return;
}
byte flags = args.Message.ReadByte();
byte major = args.Message.ReadByte();
byte minor = args.Message.ReadByte();
byte build = args.Message.ReadByte();
if (major < neededMajor || (major == neededMajor && (minor < neededMinor || (major == neededMajor && build < neededBuild))))
{
args.DenyReason = "incompatible version";
Log.Write(LogType.Error, "Connection of outdated client (" + args.Message.SenderConnection.RemoteEndPoint + ") was denied!");
return;
}
byte[] clientIdentifier = args.Message.ReadBytes(16);
if (allowOnlyUniqueClients)
{
lock (sync) {
foreach (KeyValuePair <NetConnection, Player> pair in players)
{
bool isSame = true;
for (int i = 0; i < 16; i++)
{
if (clientIdentifier[i] != pair.Value.ClientIdentifier[i])
{
isSame = false;
break;
}
}
if (isSame)
{
args.DenyReason = "already connected";
return;
}
}
}
}
string userName = args.Message.ReadString();
players[args.Message.SenderConnection] = new Player {
Connection = args.Message.SenderConnection,
ClientIdentifier = clientIdentifier,
UserName = userName,
State = PlayerState.NotReady
};
}
private void OnClientConnected(ClientConnectedEventArgs args)
{
if (serverState == ServerState.Unloaded)
{
args.DenyReason = "server unloaded";
return;
}
// Check ban status of endpoint
if (bannedEndPoints.Contains(args.Message.SenderConnection?.RemoteEndPoint))
{
args.DenyReason = "banned";
return;
}
if (args.Message.LengthBytes < 4)
{
args.DenyReason = "incompatible version";
#if DEBUG
Log.Write(LogType.Warning, "Connection of unsupported client (" + args.Message.SenderConnection.RemoteEndPoint + ") was denied");
#endif
return;
}
byte flags = args.Message.ReadByte();
// ToDo: flags are unused
byte major = args.Message.ReadByte();
byte minor = args.Message.ReadByte();
byte build = args.Message.ReadByte();
if (major < neededMajor || (major == neededMajor && (minor < neededMinor || (major == neededMajor && build < neededBuild))))
{
args.DenyReason = "incompatible version";
#if DEBUG
Log.Write(LogType.Warning, "Connection of outdated client (" + args.Message.SenderConnection.RemoteEndPoint + ") was denied");
#endif
return;
}
byte[] clientIdentifier = args.Message.ReadBytes(16);
// Check ban status of client identifier
if (bannedClientIds.Contains(ClientIdentifierToString(clientIdentifier)))
{
args.DenyReason = "banned";
return;
}
if (allowOnlyUniqueClients)
{
lock (sync) {
foreach (KeyValuePair <NetConnection, PlayerClient> pair in players)
{
bool isSame = true;
for (int i = 0; i < 16; i++)
{
if (clientIdentifier[i] != pair.Value.ClientIdentifier[i])
{
isSame = false;
break;
}
}
if (isSame)
{
args.DenyReason = "already connected";
return;
}
}
}
}
// Ensure that player has unique username
string userName = args.Message.ReadString();
lock (sync) {
if (string.IsNullOrWhiteSpace(userName))
{
do
{
userName = GenerateRandomUserName();
} while (FindPlayerByUserName(userName) != null);
}
else
{
userName = userName.Replace(' ', '_');
if (FindPlayerByUserName(userName) != null)
{
int number = 1;
while (FindPlayerByUserName(userName + "_" + number) != null)
{
number++;
}
userName = userName + "_" + number;
}
}
}
PlayerClient player = new PlayerClient {
Connection = args.Message.SenderConnection,
ClientIdentifier = clientIdentifier,
UserName = userName,
State = PlayerState.NotReady
};
lock (sync) {
players[args.Message.SenderConnection] = player;
}
}
private void OnMessage()
{
try {
while (true)
{
server.MessageReceivedEvent.WaitOne();
NetIncomingMessage msg;
while (server.ReadMessage(out msg))
{
switch (msg.MessageType)
{
case NetIncomingMessageType.StatusChanged: {
NetConnectionStatus status = (NetConnectionStatus)msg.ReadByte();
#if DEBUG
Console.ForegroundColor = ConsoleColor.DarkCyan;
Console.Write(" S ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine("[" + msg.SenderEndPoint + "] " + status);
#endif
ClientStatusChangedEventArgs args = new ClientStatusChangedEventArgs(msg.SenderConnection, status);
ClientStatusChanged?.Invoke(args);
break;
}
case NetIncomingMessageType.Data: {
#if DEBUG__
Console.ForegroundColor = ConsoleColor.Cyan;
Console.Write(" R ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine("[" + msg.SenderEndPoint + "] " + msg.LengthBytes + " bytes");
#endif
MessageReceivedEventArgs args = new MessageReceivedEventArgs(msg, false);
MessageReceived?.Invoke(args);
break;
}
case NetIncomingMessageType.UnconnectedData: {
#if DEBUG
Console.ForegroundColor = ConsoleColor.Cyan;
Console.Write(" R ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine("Unconnected [" + msg.SenderEndPoint + "] " + msg.LengthBytes + " bytes");
#endif
MessageReceivedEventArgs args = new MessageReceivedEventArgs(msg, true);
MessageReceived?.Invoke(args);
break;
}
case NetIncomingMessageType.ConnectionApproval: {
ClientConnectedEventArgs args = new ClientConnectedEventArgs(msg);
ClientConnected?.Invoke(args);
if (args.Allow)
{
msg.SenderConnection.Approve();
}
else
{
msg.SenderConnection.Deny("Incompatible version");
}
break;
}
case NetIncomingMessageType.DiscoveryRequest: {
#if DEBUG
Console.ForegroundColor = ConsoleColor.Cyan;
Console.Write(" Q ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine("[" + msg.SenderEndPoint + "] " + msg.LengthBytes + " bytes");
#endif
DiscoveryRequestEventArgs args = new DiscoveryRequestEventArgs();
DiscoveryRequest?.Invoke(args);
server.SendDiscoveryResponse(args.Message, msg.SenderEndPoint);
break;
}
#if DEBUG
case NetIncomingMessageType.VerboseDebugMessage:
Console.ForegroundColor = ConsoleColor.DarkGray;
Console.Write(" D ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine(msg.ReadString());
break;
case NetIncomingMessageType.DebugMessage:
Console.ForegroundColor = ConsoleColor.Green;
Console.Write(" D ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine(msg.ReadString());
break;
case NetIncomingMessageType.WarningMessage:
Console.ForegroundColor = ConsoleColor.Yellow;
Console.Write(" W ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine(msg.ReadString());
break;
case NetIncomingMessageType.ErrorMessage:
Console.ForegroundColor = ConsoleColor.Red;
Console.Write(" E ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine(msg.ReadString());
break;
#endif
}
server.Recycle(msg);
}
}
} catch (ThreadAbortException) {
// Server is stopped
}
}
private void OnHandleMessagesThread()
{
while (server.Status != NetPeerStatus.NotRunning)
{
server.MessageReceivedEvent.WaitOne();
NetIncomingMessage msg;
while (server.ReadMessage(out msg))
{
switch (msg.MessageType)
{
case NetIncomingMessageType.StatusChanged: {
NetConnectionStatus status = (NetConnectionStatus)msg.ReadByte();
#if NETWORK_DEBUG
Console.ForegroundColor = ConsoleColor.DarkCyan;
Console.Write(" S ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine("[" + msg.SenderEndPoint + "] " + status);
#endif
ClientStatusChangedEventArgs args = new ClientStatusChangedEventArgs(msg.SenderConnection, status);
ClientStatusChanged?.Invoke(args);
break;
}
case NetIncomingMessageType.Data: {
#if NETWORK_DEBUG__
Console.ForegroundColor = ConsoleColor.Cyan;
Console.Write(" R ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine("[" + msg.SenderEndPoint + "] " + msg.LengthBytes + " bytes");
#endif
MessageReceivedEventArgs args = new MessageReceivedEventArgs(msg, false);
MessageReceived?.Invoke(args);
break;
}
case NetIncomingMessageType.UnconnectedData: {
#if NETWORK_DEBUG
Console.ForegroundColor = ConsoleColor.Cyan;
Console.Write(" R ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine("Unconnected [" + msg.SenderEndPoint + "] " + msg.LengthBytes + " bytes");
#endif
MessageReceivedEventArgs args = new MessageReceivedEventArgs(msg, true);
MessageReceived?.Invoke(args);
break;
}
case NetIncomingMessageType.ConnectionApproval: {
ClientConnectedEventArgs args = new ClientConnectedEventArgs(msg);
ClientConnected?.Invoke(args);
if (args.DenyReason == null)
{
msg.SenderConnection.Approve();
}
else
{
msg.SenderConnection.Deny(args.DenyReason);
}
break;
}
case NetIncomingMessageType.DiscoveryRequest: {
#if NETWORK_DEBUG
Console.ForegroundColor = ConsoleColor.Cyan;
Console.Write(" Q ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine("[" + msg.SenderEndPoint + "] " + msg.LengthBytes + " bytes");
#endif
DiscoveryRequestEventArgs args = new DiscoveryRequestEventArgs();
DiscoveryRequest?.Invoke(args);
server.SendDiscoveryResponse(args.Message, msg.SenderEndPoint);
break;
}
#if NETWORK_DEBUG
case NetIncomingMessageType.VerboseDebugMessage:
Console.ForegroundColor = ConsoleColor.DarkGray;
Console.Write(" D ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine(msg.ReadString());
break;
case NetIncomingMessageType.DebugMessage:
Console.ForegroundColor = ConsoleColor.Green;
Console.Write(" D ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine(msg.ReadString());
break;
case NetIncomingMessageType.WarningMessage:
Console.ForegroundColor = ConsoleColor.Yellow;
Console.Write(" W ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine(msg.ReadString());
break;
case NetIncomingMessageType.ErrorMessage:
Console.ForegroundColor = ConsoleColor.Red;
Console.Write(" E ");
Console.ForegroundColor = ConsoleColor.Gray;
Console.WriteLine(msg.ReadString());
break;
#endif
}
server.Recycle(msg);
}
}
server = null;
Debug.WriteLine("ServerConnection: OnHandleMessagesThread exited!");
}
