55 lines
2.1 KiB
C#
55 lines
2.1 KiB
C#
using System;
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using System.Net.WebSockets;
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using System.Threading;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Builder;
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using Microsoft.AspNetCore.Hosting;
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using Microsoft.AspNetCore.Http;
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using Microsoft.Extensions.Logging;
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namespace AutobahnTestApp
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{
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public class Startup
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{
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// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
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public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
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{
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if (!env.IsEnvironment("NativeSockets"))
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{
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app.UseWebSockets(new WebSocketOptions
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{
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ReplaceFeature = true
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});
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}
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app.Use(async (context, next) =>
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{
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if (context.WebSockets.IsWebSocketRequest)
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{
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var webSocket = await context.WebSockets.AcceptWebSocketAsync();
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await Echo(webSocket);
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}
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else
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{
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var wsScheme = context.Request.IsHttps ? "wss" : "ws";
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var wsUrl = $"{wsScheme}://{context.Request.Host.Host}:{context.Request.Host.Port}{context.Request.Path}";
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await context.Response.WriteAsync($"Ready to accept a WebSocket request at: {wsUrl}");
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}
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});
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}
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private async Task Echo(WebSocket webSocket)
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{
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var buffer = new byte[1024 * 4];
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var result = await webSocket.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);
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while (!result.CloseStatus.HasValue)
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{
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await webSocket.SendAsync(new ArraySegment<byte>(buffer, 0, result.Count), result.MessageType, result.EndOfMessage, CancellationToken.None);
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result = await webSocket.ReceiveAsync(new ArraySegment<byte>(buffer), CancellationToken.None);
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}
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await webSocket.CloseAsync(result.CloseStatus.Value, result.CloseStatusDescription, CancellationToken.None);
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}
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}
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}
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