feat: websockets

.github/workflows/main.yml

@@ -19,7 +19,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           tag_name: ${{ github.ref }}
-          release_name: Ragon.SimpleServer-${{ github.ref }}
+          release_name: Ragon.Relay-${{ github.ref }}
           prerelease: true
 
   build:
@@ -53,10 +53,10 @@ jobs:
       - name: Build
         shell: bash
         run: |
-          release_name="Ragon.SimpleServer-${{ env.TAG }}-${{ matrix.target }}"
+          release_name="Ragon.Relay-${{ env.TAG }}-${{ matrix.target }}"
           
           # Build everything
-          dotnet publish Ragon.SimpleServer/Ragon.SimpleServer.csproj -c Release --runtime "${{ matrix.target }}" -p:PublishSingleFile=true -o "$release_name"
+          dotnet publish Ragon.Relay/Ragon.Relay.csproj -c Release --runtime "${{ matrix.target }}" -p:PublishSingleFile=true -o "$release_name"
           
           # Pack files        
           7z a -tzip "${release_name}.zip" "./${release_name}/*"
@@ -69,6 +69,6 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           upload_url: ${{ needs.release.outputs.upload_url }}
-          asset_path: Ragon.SimpleServer-${{ env.TAG }}-${{ matrix.target }}.zip
-          asset_name: Ragon.SimpleServer-${{ env.TAG }}-${{ matrix.target }}.zip
+          asset_path: Ragon.Relay-${{ env.TAG }}-${{ matrix.target }}.zip
+          asset_name: Ragon.Relay-${{ env.TAG }}-${{ matrix.target }}.zip
           asset_content_type: application/zip

Ragon.Core/Application.cs

@@ -2,6 +2,7 @@ using System.Diagnostics;
 using NLog;
 using Ragon.Common;
 using Ragon.Core.Lobby;
+using Ragon.Core.Server;
 using Ragon.Core.Time;
 using Ragon.Server;
 using Ragon.Server.ENet;
@@ -13,6 +14,7 @@ public class Application : INetworkListener
   private readonly Logger _logger = LogManager.GetCurrentClassLogger();
   private readonly INetworkServer _server;
   private readonly Thread _dedicatedThread;
+  private readonly Executor _executor;
   private readonly Configuration _configuration;
   private readonly HandlerRegistry _handlerRegistry;
   private readonly ILobby _lobby;
@@ -22,6 +24,7 @@ public class Application : INetworkListener
   public Application(Configuration configuration)
   {
     _configuration = configuration;
+    _executor = new Executor();
     _dedicatedThread = new Thread(Execute);
     _dedicatedThread.IsBackground = true;
     _contexts = new Dictionary<ushort, PlayerContext>();
@@ -29,20 +32,24 @@ public class Application : INetworkListener
     _lobby = new LobbyInMemory();
     _loop = new Loop();
 
-    if (configuration.Socket == "enet")
+    if (configuration.ServerType == "enet")
       _server = new ENetServer();
     
-    Debug.Assert(_server != null, $"Socket type not supported: {configuration.Socket}. Supported: [enet, websocket]");
+    if (configuration.ServerType == "websocket")
+      _server = new NativeWebSocketServer(_executor);
+
+    Debug.Assert(_server != null, $"Socket type not supported: {configuration.ServerType}. Supported: [enet, websocket]");
   }
 
   public void Execute()
   {
     while (true)
     {
+      _executor.Execute();
       _loop.Tick();
       _server.Poll();
 
-      Thread.Sleep((int) 1000.0f / _configuration.SendRate);
+      Thread.Sleep((int)1000.0f / _configuration.ServerTickRate);
     }
   }
 
@@ -51,7 +58,7 @@ public class Application : INetworkListener
     var networkConfiguration = new NetworkConfiguration()
     {
       LimitConnections = _configuration.LimitConnections,
-      Protocol = RagonVersion.Parse(_configuration.Protocol),
+      Protocol = RagonVersion.Parse(_configuration.GameProtocol),
       Address = "0.0.0.0",
       Port = _configuration.Port,
     };
@@ -89,6 +96,7 @@ public class Application : INetworkListener
 
         _lobby.RemoveIfEmpty(room);
       }
+
       context.Dispose();
     }
   }

Ragon.Core/Configuration.cs

@@ -6,13 +6,11 @@ namespace Ragon.Core;
 [Serializable]
 public struct Configuration
 {
-  public string Key;
-  public string Protocol;
-  public string Socket;
-  public ushort SendRate;
+  public string ServerKey;
+  public string ServerType;
+  public ushort ServerTickRate;
+  public string GameProtocol;
   public ushort Port;
-  public int SkipTimeout;
-  public int ReconnectTimeout;
   public int LimitConnections;
   public int LimitPlayersPerRoom;
   public int LimitRooms;

Ragon.Core/Game/Entity.cs

@@ -54,7 +54,7 @@ public class Entity
       writer.WriteData(ref data);
 
       var sendData = writer.ToArray();
-      roomPlayer.Connection.ReliableChannel.Send(sendData);
+      roomPlayer.Connection.Reliable.Send(sendData);
     }
   }
 
@@ -75,7 +75,7 @@ public class Entity
 
     var sendData = serializer.ToArray();
     foreach (var player in room.ReadyPlayersList)
-      player.Connection.ReliableChannel.Send(sendData);
+      player.Connection.Reliable.Send(sendData);
   }
 
   public void Destroy(byte[] payload)
@@ -91,7 +91,7 @@ public class Entity
 
     var sendData = serializer.ToArray();
     foreach (var player in room.ReadyPlayersList)
-      player.Connection.ReliableChannel.Send(sendData);
+      player.Connection.Reliable.Send(sendData);
   }
 
   public void ReplicateEvent(
@@ -114,7 +114,7 @@ public class Entity
     serializer.WriteData(ref payload);
 
     var sendData = serializer.ToArray();
-    targetPlayer.Connection.ReliableChannel.Send(sendData);
+    targetPlayer.Connection.Reliable.Send(sendData);
   }
 
   public void ReplicateEvent(
@@ -155,7 +155,7 @@ public class Entity
     {
       case RagonTarget.Owner:
       {
-        Owner.Connection.ReliableChannel.Send(sendData);
+        Owner.Connection.Reliable.Send(sendData);
         break;
       }
       case RagonTarget.ExceptOwner:
@@ -163,7 +163,7 @@ public class Entity
         foreach (var roomPlayer in room.ReadyPlayersList)
         {
           if (roomPlayer.Connection.Id != Owner.Connection.Id)
-            roomPlayer.Connection.ReliableChannel.Send(sendData);
+            roomPlayer.Connection.Reliable.Send(sendData);
         }
 
         break;
@@ -173,7 +173,7 @@ public class Entity
         foreach (var roomPlayer in room.ReadyPlayersList)
         {
           if (roomPlayer.Connection.Id != caller.Connection.Id)
-            roomPlayer.Connection.ReliableChannel.Send(sendData);
+            roomPlayer.Connection.Reliable.Send(sendData);
         }
 
         break;
@@ -181,7 +181,7 @@ public class Entity
       case RagonTarget.All:
       {
         foreach (var roomPlayer in room.ReadyPlayersList)
-          roomPlayer.Connection.ReliableChannel.Send(sendData);
+          roomPlayer.Connection.Reliable.Send(sendData);
         break;
       }
     }

Ragon.Core/Game/Room.cs

@@ -83,7 +83,7 @@ public class Room: IAction
 
       var sendData = Writer.ToArray();
       foreach (var roomPlayer in ReadyPlayersList)
-        roomPlayer.Connection.UnreliableChannel.Send(sendData);
+        roomPlayer.Connection.Unreliable.Send(sendData);
     }
   }
 
@@ -161,6 +161,6 @@ public class Room: IAction
   public void Broadcast(byte[] data)
   {
     foreach (var readyPlayer in ReadyPlayersList)
-      readyPlayer.Connection.ReliableChannel.Send(data);
+      readyPlayer.Connection.Reliable.Send(data);
   }
 }

Ragon.Core/Handlers/AuthorizationHandler.cs

@@ -32,7 +32,7 @@ public sealed class AuthorizationHandler: IHandler
     writer.WriteString(playerName);
     
     var sendData = writer.ToArray();
-    context.Connection.ReliableChannel.Send(sendData);
+    context.Connection.Reliable.Send(sendData);
     
     _logger.Trace($"Player {context.Connection.Id}|{context.LobbyPlayer.Name} authorized");
   }

Ragon.Core/Handlers/RoomCreateHandler.cs

@@ -31,7 +31,7 @@ public sealed class CreateHandler: IHandler
         writer.WriteString($"Room with id {roomId} already exists");
             
         var sendData = writer.ToArray();
-        context.Connection.ReliableChannel.Send(sendData);
+        context.Connection.Reliable.Send(sendData);
         
         _logger.Trace($"Player {context.Connection.Id}|{context.LobbyPlayer.Name} join failed to room {roomId}, room already exist");
         return;        
@@ -79,6 +79,6 @@ public sealed class CreateHandler: IHandler
     writer.WriteString(room.Info.Map);
 
     var sendData = writer.ToArray();
-    player.Connection.ReliableChannel.Send(sendData);
+    player.Connection.Reliable.Send(sendData);
   }
 }

Ragon.Core/Handlers/RoomJoinHandler.cs

@@ -47,7 +47,7 @@ public sealed class JoinHandler : IHandler
     writer.WriteString(room.Info.Map);
 
     var sendData = writer.ToArray();
-    player.Connection.ReliableChannel.Send(sendData);
+    player.Connection.Reliable.Send(sendData);
   }
 
   private void JoinFailed(LobbyPlayer player, RagonSerializer writer)
@@ -57,6 +57,6 @@ public sealed class JoinHandler : IHandler
     writer.WriteString($"Room not exists");
 
     var sendData = writer.ToArray();
-    player.Connection.ReliableChannel.Send(sendData);
+    player.Connection.Reliable.Send(sendData);
   }
 }

Ragon.Core/Handlers/RoomJoinOrCreateHandler.cs

@@ -74,7 +74,7 @@ public sealed class JoinOrCreateHandler : IHandler
     writer.WriteString(room.Info.Map);
 
     var sendData = writer.ToArray();
-    player.Connection.ReliableChannel.Send(sendData);
+    player.Connection.Reliable.Send(sendData);
     
     _logger.Trace($"Joined to room {room.Id}");
   }

Ragon.Core/Handlers/SceneLoadedHandler.cs

@@ -88,7 +88,7 @@ public sealed class SceneLoadedHandler : IHandler
     foreach (var awaiter in room.ReadyPlayersList)
     {
       if (awaiter != roomPlayer)
-        awaiter.Connection.ReliableChannel.Send(sendData);
+        awaiter.Connection.Reliable.Send(sendData);
     }
   }
 
@@ -118,6 +118,6 @@ public sealed class SceneLoadedHandler : IHandler
 
     var sendData = writer.ToArray();
     foreach (var player in receviersList)
-      player.Connection.ReliableChannel.Send(sendData);
+      player.Connection.Reliable.Send(sendData);
   }
 }

Ragon.Core/Ragon.Core.csproj

@@ -14,7 +14,7 @@
     <ItemGroup>
       <ProjectReference Include="..\Ragon.Protocol\Ragon.Protocol.csproj" />
       <ProjectReference Include="..\Ragon.Server.ENet\Ragon.Server.ENet.csproj" />
-      <ProjectReference Include="..\Ragon.Server.WebSockets\Ragon.Server.WebSockets.csproj" />
+      <ProjectReference Include="..\Ragon.Server.NativeWebSockets\Ragon.Server.NativeWebSockets.csproj" />
       <ProjectReference Include="..\Ragon.Server\Ragon.Server.csproj" />
     </ItemGroup>
 

Ragon.Relay/Program.cs

@@ -10,12 +10,17 @@ namespace Ragon.Relay
         static void Main(string[] args)
         {
             var logger = LogManager.GetLogger("Ragon.Relay");
+            
             logger.Info("Relay Application");
-            var configuration = Configuration.Load("config.json");
+            
+            var configuration = Configuration.Load("relay.config.json");
             var relay = new Application(configuration);
-            relay.Start();
+            
             logger.Info("Started");
+            relay.Start();
+
             Console.ReadKey();
+            
             relay.Stop();
             logger.Info("Stopped");
         }

Ragon.Relay/Ragon.Relay.csproj

@@ -14,7 +14,7 @@
       <None Update="NLog.config">
         <CopyToOutputDirectory>Always</CopyToOutputDirectory>
       </None>
-      <None Update="config.json">
+      <None Update="relay.config.json">
         <CopyToOutputDirectory>Always</CopyToOutputDirectory>
       </None>
     </ItemGroup>

Ragon.Relay/config.json

@@ -1,12 +0,0 @@
-{
-  "key": "defaultkey",
-  "socket": "enet",
-  "protocol": "1.0.0",
-  "sendRate": 50,
-  "port": 4444,
-  "skipTimeout": 60,
-  "reconnectTimeout": 300,
-  "limitConnections": 4095,
-  "limitPlayersPerRoom": 20,
-  "limitRooms": 200
-}

Ragon.Relay/relay.config.json

@@ -0,0 +1,10 @@
+{
+  "serverKey": "defaultkey",
+  "serverType": "websocket",
+  "serverTickRate": 20,
+  "gameProtocol": "1.0.0",
+  "port": 5000,
+  "limitConnections": 4095,
+  "limitPlayersPerRoom": 20,
+  "limitRooms": 200
+}

Ragon.Server.ENet/ENetConnection.cs

@@ -5,13 +5,13 @@ namespace Ragon.Server.ENet;
 public sealed class ENetConnection: INetworkConnection
 {
   public ushort Id { get; }
-  public INetworkChannel ReliableChannel { get; private set; }
-  public INetworkChannel UnreliableChannel { get; private set; }
+  public INetworkChannel Reliable { get; private set; }
+  public INetworkChannel Unreliable { get; private set; }
   
   public ENetConnection(Peer peer)
   {
     Id = (ushort) peer.ID;
-    ReliableChannel = new ENetReliableChannel(peer, 0);
-    UnreliableChannel = new ENetUnreliableChannel(peer, 1);
+    Reliable = new ENetReliableChannel(peer, 0);
+    Unreliable = new ENetUnreliableChannel(peer, 1);
   }
 }

Ragon.Server.ENet/ENetServer.cs

@@ -63,7 +63,8 @@ namespace Ragon.Server.ENet
           {
             if (!IsValidProtocol(_event.Data))
             {
-              _logger.Warn("Mismatched protocol, close connection");
+              _logger.Warn($"Mismatched protocol Server: {RagonVersion.Parse(_protocol)} Client: {RagonVersion.Parse(_event.Data)}, close connection");
+              _event.Peer.DisconnectNow(0);
               break;
             }
 
@@ -109,7 +110,6 @@ namespace Ragon.Server.ENet
 
     private bool IsValidProtocol(uint protocol)
     {
-     Console.WriteLine($"{protocol} {_protocol}");
       return protocol == _protocol;
     }
   }

Ragon.Server.NativeWebSockets/Ragon.Server.NativeWebSockets.csproj

@@ -7,4 +7,12 @@
         <RootNamespace>Ragon.WebSockets</RootNamespace>
     </PropertyGroup>
 
+    <ItemGroup>
+      <ProjectReference Include="..\Ragon.Server\Ragon.Server.csproj" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <PackageReference Include="NLog" Version="5.0.5" />
+    </ItemGroup>
+
 </Project>

Ragon.Server.NativeWebSockets/WebSocketConnection.cs

@@ -0,0 +1,44 @@
+using System.Net.WebSockets;
+using NLog;
+
+namespace Ragon.Server.NativeWebSockets;
+
+public sealed class WebSocketConnection : INetworkConnection
+{
+    private Logger _logger = LogManager.GetCurrentClassLogger();
+    public ushort Id { get; }
+    public INetworkChannel Reliable { get; private set; }
+    public INetworkChannel Unreliable { get; private set; }
+
+    public WebSocket Socket { get; private set; }
+    private WebSocketReliableChannel[] _channels;
+
+    public WebSocketConnection(WebSocket webSocket, ushort peerId)
+    {
+        Id = peerId;
+        Socket = webSocket;
+
+        var reliableChannel = new WebSocketReliableChannel(webSocket);
+        var unreliableChannel = new WebSocketReliableChannel(webSocket);
+
+        _channels = new[] { reliableChannel, unreliableChannel };
+
+        Reliable = reliableChannel;
+        Unreliable = unreliableChannel;
+    }
+
+    public async Task Flush()
+    {
+        foreach (var channel in _channels)
+        {
+            try
+            {
+                await channel.Flush();
+            }
+            catch (Exception ex)
+            {
+                _logger.Error(ex);
+            }
+        }
+    }
+}

Ragon.Server.NativeWebSockets/WebSocketReliableChannel.cs

@@ -0,0 +1,27 @@
+using System.Net.WebSockets;
+using Ragon.Server;
+
+namespace Ragon.Server.NativeWebSockets;
+
+public class WebSocketReliableChannel : INetworkChannel
+{
+    private Queue<byte[]> _queue;
+    private WebSocket _socket;
+
+    public WebSocketReliableChannel(WebSocket webSocket)
+    {
+        _socket = webSocket;
+        _queue = new Queue<byte[]>(512);
+    }
+
+    public void Send(byte[] data)
+    {
+        _queue.Enqueue(data);
+    }
+
+    public async Task Flush()
+    {
+        while (_queue.TryDequeue(out var sendData) && _socket.State == WebSocketState.Open)
+            await _socket.SendAsync(sendData, WebSocketMessageType.Binary, WebSocketMessageFlags.EndOfMessage, CancellationToken.None);
+    }
+}

Ragon.Server.NativeWebSockets/WebSocketServer.cs

@@ -0,0 +1,121 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Net;
+using System.Net.WebSockets;
+using NLog;
+using Ragon.Common;
+using Ragon.Core.Server;
+using Ragon.Server;
+using Ragon.Server.NativeWebSockets;
+
+namespace Ragon.Core;
+
+public class NativeWebSocketServer : INetworkServer
+{
+    private ILogger _logger = LogManager.GetCurrentClassLogger();
+    private INetworkListener _networkListener;
+    private Stack<ushort> _sequencer;
+    private Executor _executor;
+    private HttpListener _httpListener;
+    private WebSocketConnection[] _connections;
+    private ushort _lastPeerId;
+    private CancellationTokenSource _cancellationTokenSource;
+
+    public NativeWebSocketServer(Executor executor)
+    {
+        _sequencer = new Stack<ushort>();
+        _connections = Array.Empty<WebSocketConnection>();
+        _executor = executor;
+    }
+
+    public async Task StartAccept(CancellationToken cancellationToken)
+    {
+        while (!cancellationToken.IsCancellationRequested)
+        {
+            var context = await _httpListener.GetContextAsync();
+            if (!context.Request.IsWebSocketRequest) continue;
+
+            var webSocketContext = await context.AcceptWebSocketAsync(null);
+            var webSocket = webSocketContext.WebSocket;
+
+            var peerId = _sequencer.Pop();
+            var connection = new WebSocketConnection(webSocket, peerId);
+
+            _lastPeerId = peerId;
+            _connections[peerId] = connection;
+            _networkListener.OnConnected(connection);
+            _executor.Run(StartListen(connection, cancellationToken));
+        }
+    }
+
+    async Task StartListen(WebSocketConnection connection, CancellationToken cancellationToken)
+    {
+        var webSocket = connection.Socket;
+        var bytes = new byte[2048];
+        var buffer = new Memory<byte>(bytes);
+        while (
+            webSocket.State == WebSocketState.Open ||
+            !cancellationToken.IsCancellationRequested)
+        {
+            try
+            {
+                var result = await webSocket.ReceiveAsync(buffer, cancellationToken);
+                var dataRaw = buffer.Slice(0, result.Count);
+
+                _networkListener.OnData(connection, dataRaw.ToArray());
+            }
+            catch (Exception ex)
+            {
+                break;
+            }
+        }
+        
+        _sequencer.Push(connection.Id);
+        _networkListener.OnDisconnected(connection);
+    }
+
+    public async void Poll()
+    {
+        foreach (var conn in _connections)
+        {
+            if (conn != null)
+            {
+                await conn.Flush();
+            }
+        }
+    }
+
+    public void Start(
+        INetworkListener listener,
+        NetworkConfiguration configuration
+    )
+    {
+        _networkListener = listener;
+        _cancellationTokenSource = new CancellationTokenSource();
+
+        var limit = (ushort) configuration.LimitConnections;
+        for (ushort i = limit; i != 0; i--)
+            _sequencer.Push(i);
+        
+        _sequencer.Push(0);
+
+        _connections = new WebSocketConnection[configuration.LimitConnections];
+        
+        _httpListener = new HttpListener();
+        _httpListener.Prefixes.Add($"http://127.0.0.1:{configuration.Port}/");
+        _httpListener.Start();
+
+        _executor.Run(StartAccept(_cancellationTokenSource.Token));
+
+        var protocolDecoded = RagonVersion.Parse(configuration.Protocol);
+        _logger.Info($"Network listening on http://*:{configuration.Port}/");
+        _logger.Info($"Protocol: {protocolDecoded}");
+    }
+
+    public void Stop()
+    {
+        _cancellationTokenSource.Cancel();
+        _httpListener.Stop();
+    }
+}

Ragon.Server/INetworkConnection.cs

@@ -3,6 +3,6 @@ namespace Ragon.Server;
 public interface INetworkConnection
 {
     public ushort Id { get; }
-    public INetworkChannel ReliableChannel { get; }
-    public INetworkChannel UnreliableChannel { get; }
+    public INetworkChannel Reliable { get; }
+    public INetworkChannel Unreliable { get; }
 }

Ragon.Server/IO/Executor.cs

@@ -1,20 +1,17 @@
-using System;
-using System.Collections.Generic;
 using System.Threading.Channels;
-using System.Threading.Tasks;
-using NLog.LayoutRenderers.Wrappers;
 
-namespace Ragon.Core;
+namespace Ragon.Core.Server;
 
 public class Executor: TaskScheduler
 {
   private ChannelReader<Task> _reader;
   private ChannelWriter<Task> _writer;
   private Queue<Task> _pendingTasks;
+  private TaskFactory _taskFactory;
 
   public void Run(Task task)
   {
-    task.Start(this);
+    _taskFactory.StartNew(() => task);
   }
 
   public Executor()
@@ -23,6 +20,7 @@ public class Executor: TaskScheduler
     _reader = channel.Reader;
     _writer = channel.Writer;
     
+    _taskFactory = new TaskFactory(this);
     _pendingTasks = new Queue<Task>();
   }
 

Ragon.sln

@@ -8,7 +8,7 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Ragon.Server", "Ragon.Serve
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Ragon.Core", "Ragon.Core\Ragon.Core.csproj", "{F4AA86B9-2486-4B53-BA77-43D958A2FDC3}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Ragon.Server.WebSockets", "Ragon.Server.WebSockets\Ragon.Server.WebSockets.csproj", "{81050343-A9B8-487B-86C8-7A5B7DD9C39B}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Ragon.Server.NativeWebSockets", "Ragon.Server.NativeWebSockets\Ragon.Server.NativeWebSockets.csproj", "{81050343-A9B8-487B-86C8-7A5B7DD9C39B}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Ragon.Server.ENet", "Ragon.Server.ENet\Ragon.Server.ENet.csproj", "{DD79AC4F-9E5C-4938-850E-805D537E68D0}"
 EndProject