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Integrations/Esiur.AspNetCore/EsiurMiddleware.cs

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+/*
+
+MIT License
+
+Copyright (c) 2017-2024 Esiur Foundation, Ahmed Kh. Zamil.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Net.Sockets;
+using Esiur.Protocol;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+using System.Net.WebSockets;
+
+namespace Esiur.AspNetCore
+{
+    public class EsiurMiddleware 
+    {
+        readonly EpServer server;
+        readonly RequestDelegate next;
+        readonly ILoggerFactory loggerFactory;
+
+        public async Task InvokeAsync(HttpContext context)
+        {
+            var buffer = new ArraySegment<byte>(new byte[10240]);
+
+            if (context.WebSockets.IsWebSocketRequest 
+                && context.WebSockets.WebSocketRequestedProtocols.Contains("EP"))
+            {
+                var webSocket = await context.WebSockets.AcceptWebSocketAsync("EP");
+                var socket = new FrameworkWebSocket(webSocket);
+                var EPConnection = new EpConnection();
+                server.Add(EPConnection);
+                EPConnection.Assign(socket);
+                socket.Begin();
+
+                // @TODO: Change this
+                while (webSocket.State == WebSocketState.Open)
+                    await Task.Delay(500);
+            }
+            else
+            {
+                await next(context);
+            }
+
+        }
+
+
+        public EsiurMiddleware(RequestDelegate next, IOptions<EsiurOptions> options, ILoggerFactory loggerFactory)
+        {
+            this.server = options.Value.Server;
+            this.loggerFactory = loggerFactory;
+            this.next = next;
+        }
+    }
+}