✨ Websocket receive.

Signed-off-by: 秋雨落 <i@rain.cx>

CrystalConnector/Connector/MessageChannel.cs

@@ -0,0 +1,6 @@
+namespace CrystalConnector.Connector;
+
+public class MessageChannel
+{
+    
+}

CrystalConnector/CrystalConnector.csproj

@@ -8,15 +8,14 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0-preview.7.23375.6" />
-        <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="8.0.0-preview.7.23375.6" />
-        <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0-preview.7.23375.6" />
-        <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0-preview.7.23375.6" />
-        <PackageReference Include="Microsoft.Extensions.Hosting" Version="8.0.0-preview.7.23375.6" />
+        <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0-rc.1.23419.4" />
+        <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="8.0.0-rc.1.23419.4" />
+        <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0-rc.1.23419.4" />
+        <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0-rc.1.23419.4" />
+        <PackageReference Include="Microsoft.Extensions.Hosting" Version="8.0.0-rc.1.23419.4" />
         <PackageReference Include="NLog" Version="5.2.4" />
         <PackageReference Include="NLog.Extensions.Hosting" Version="5.3.4" />
-        <PackageReference Include="Spectre.Console" Version="0.47.1-preview.0.12" />
-        <PackageReference Include="Telegram.Bot" Version="19.0.0" />
+        <PackageReference Include="System.Formats.Cbor" Version="8.0.0-rc.1.23419.4" />
     </ItemGroup>
 
     <ItemGroup>

CrystalConnector/CrystalService.cs

@@ -1,4 +1,5 @@
-using Microsoft.Extensions.Configuration;
+using CrystalConnector.Utilities;
+using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 using NLog;
@@ -28,6 +29,7 @@ public class CrystalService : IHostedService
     private void OnStopping()
     {
         Logger.LogInformation("Stopping!");
+        WebSocketExtension.DisconnectAll();
     }
     
     private void OnStopped()

CrystalConnector/Handlers/IWebSocketHandler.cs

@@ -1,4 +1,5 @@
 using System.Net.WebSockets;
+using CrystalConnector.Utilities;
 using Microsoft.AspNetCore.Http;
 
 namespace CrystalConnector.Handlers;

CrystalConnector/Handlers/WebSocketHandler.cs

@@ -1,5 +1,6 @@
 using System.Net;
 using System.Net.WebSockets;
+using CrystalConnector.Utilities;
 using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.Logging;
 
@@ -9,22 +10,33 @@ public class WebSocketHandler : IWebSocketHandler
 {
     private ILogger<WebSocketHandler> Logger { get; }
 
-    // Todo: qyl27: Maybe we need a MultiKeyMap? <string Id, IPEndPoint ip, Tuple<WebSocket, TaskCompletionSource<WebSocketHandleResult>>>
-    private Dictionary<IPEndPoint, Tuple<WebSocket, TaskCompletionSource<WebSocketHandleResult>>> WebSockets { get; } = new();
-
     public WebSocketHandler(ILogger<WebSocketHandler> logger)
     {
         Logger = logger;
     }
 
-    public void StartHandle(HttpContext context, WebSocket socket, TaskCompletionSource<WebSocketHandleResult> taskCompletionSource)
+    public async void StartHandle(HttpContext context, WebSocket webSocket, TaskCompletionSource<WebSocketHandleResult> taskCompletionSource)
     {
-        var remoteEndPoint = new IPEndPoint(context.Connection.RemoteIpAddress, context.Connection.RemotePort);
-        WebSockets.Add(remoteEndPoint, new Tuple<WebSocket, TaskCompletionSource<WebSocketHandleResult>>(socket, taskCompletionSource));
+        var remoteEndPoint = new IPEndPoint(context.Connection.RemoteIpAddress!, context.Connection.RemotePort);    // qyl27: we believe it is a tcp connection.
+        var receiveCancellationTokenSource = new CancellationTokenSource();
+        webSocket.AddData(context.Connection.Id, remoteEndPoint, taskCompletionSource, receiveCancellationTokenSource);
+        await Handle(webSocket, receiveCancellationTokenSource.Token);
     }
 
-    public void Disconnect(WebSocket socket)
+    private async Task Handle(WebSocket webSocket, CancellationToken cancellationToken)
     {
+        var buffer = new byte[1024 * 4];
         
+        WebSocketReceiveResult receiveResult;
+        
+        do
+        {
+            receiveResult = await webSocket.ReceiveAsync(new ArraySegment<byte>(buffer), cancellationToken);
+        } while (!cancellationToken.IsCancellationRequested && !receiveResult.CloseStatus.HasValue);
+    }
+
+    public void Disconnect(WebSocket webSocket)
+    {
+        webSocket.RemoveData();
     }
 }

CrystalConnector/Startup.cs

@@ -1,4 +1,5 @@
 using CrystalConnector.Handlers;
+using CrystalConnector.Utilities;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;

CrystalConnector/Utilities/WebSocketData.cs

@@ -0,0 +1,19 @@
+using System.Net;
+using CrystalConnector.Connector;
+
+namespace CrystalConnector.Utilities;
+
+public class WebSocketData
+{
+    public required string Id { get; set; }
+    
+    public required IPEndPoint IpEndPoint { get; set; }
+    
+    public required TaskCompletionSource<WebSocketHandleResult> CompletionSource { get; set; }
+
+    public required CancellationTokenSource ReceiveCancellationTokenSource { get; set; }
+    
+    public bool Authorized { get; set; } = false;
+
+    public List<MessageChannel> RegisteredChannels { get; } = new();
+}

CrystalConnector/Utilities/WebSocketExtension.cs

@@ -0,0 +1,44 @@
+using System.Net;
+using System.Net.WebSockets;
+
+namespace CrystalConnector.Utilities;
+
+public static class WebSocketExtension
+{
+    private static Dictionary<WebSocket, WebSocketData> Data { get; } = new();
+
+    public static void AddData(this WebSocket webSocket, string id, IPEndPoint ip, 
+        TaskCompletionSource<WebSocketHandleResult> taskCompletionSource,
+        CancellationTokenSource receiveCancellationTokenSource)
+    {
+        Data.Add(webSocket, new WebSocketData
+        {
+            Id = id, 
+            IpEndPoint = ip,
+            CompletionSource = taskCompletionSource,
+            ReceiveCancellationTokenSource = receiveCancellationTokenSource
+        });
+    }
+
+    public static WebSocketData GetData(this WebSocket webSocket)
+    {
+        return Data[webSocket];
+    }
+
+    public static void RemoveData(this WebSocket webSocket)
+    {
+        var data = GetData(webSocket);
+        data.ReceiveCancellationTokenSource.Cancel();
+        data.CompletionSource.SetResult(WebSocketHandleResult.Successful);
+        
+        Data.Remove(webSocket);
+    }
+
+    public static void DisconnectAll()
+    {
+        foreach (var (socket, _) in Data)
+        {
+            RemoveData(socket);
+        }
+    }
+}

CrystalConnector/Utilities/WebSocketHandleResult.cs

@@ -1,4 +1,4 @@
-namespace CrystalConnector.Handlers;
+namespace CrystalConnector.Utilities;
 
 public enum WebSocketHandleResult
 {

CrystalConnector/config.json

@@ -12,5 +12,10 @@
                 }
             }
         ]
+    },
+    "Connector": {
+        "Auth": {
+            "Secret": "qyl27IsHere!"
+        }
     }
 }