Remove more cruft and add the beginnings of a socket middleware

Emby.Server.Implementations/Middleware/WebSocketMiddleware.cs

@@ -0,0 +1,36 @@
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Logging;
+using WebSocketManager = Emby.Server.Implementations.WebSockets.WebSocketManager;
+
+namespace Emby.Server.Implementations.Middleware
+{
+    public class WebSocketMiddleware
+    {
+        private readonly RequestDelegate _next;
+        private readonly ILogger<WebSocketMiddleware> _logger;
+        private readonly WebSocketManager _webSocketManager;
+
+        public WebSocketMiddleware(RequestDelegate next, ILogger<WebSocketMiddleware> logger, WebSocketManager webSocketManager)
+        {
+            _next = next;
+            _logger = logger;
+            _webSocketManager = webSocketManager;
+        }
+
+        public async Task Invoke(HttpContext httpContext)
+        {
+            _logger.LogInformation("Handling request: " + httpContext.Request.Path);
+
+            if (httpContext.WebSockets.IsWebSocketRequest)
+            {
+                var webSocketContext = await httpContext.WebSockets.AcceptWebSocketAsync(null).ConfigureAwait(false);
+                _webSocketManager.AddSocket(webSocketContext);
+            }
+            else
+            {
+                await _next.Invoke(httpContext);
+            }
+        }
+    }
+}