53 lines
2.1 KiB
C#
53 lines
2.1 KiB
C#
using System;
|
|
using System.Net.WebSockets;
|
|
using System.Threading;
|
|
using System.Threading.Tasks;
|
|
using Microsoft.AspNetCore.Builder;
|
|
using Microsoft.AspNetCore.Hosting;
|
|
using Microsoft.AspNetCore.Http;
|
|
using Microsoft.Extensions.Logging;
|
|
|
|
namespace AutobahnTestApp
|
|
{
|
|
public class Startup
|
|
{
|
|
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
|
|
public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
|
|
{
|
|
app.UseWebSockets();
|
|
|
|
var logger = loggerFactory.CreateLogger<Startup>();
|
|
app.Use(async (context, next) =>
|
|
{
|
|
if (context.WebSockets.IsWebSocketRequest)
|
|
{
|
|
logger.LogInformation("Received WebSocket request");
|
|
using (var webSocket = await context.WebSockets.AcceptWebSocketAsync())
|
|
{
|
|
await Echo(webSocket, context.RequestAborted);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
var wsScheme = context.Request.IsHttps ? "wss" : "ws";
|
|
var wsUrl = $"{wsScheme}://{context.Request.Host.Host}:{context.Request.Host.Port}{context.Request.Path}";
|
|
await context.Response.WriteAsync($"Ready to accept a WebSocket request at: {wsUrl}");
|
|
}
|
|
});
|
|
|
|
}
|
|
|
|
private async Task Echo(WebSocket webSocket, CancellationToken cancellationToken)
|
|
{
|
|
var buffer = new byte[1024 * 4];
|
|
var result = await webSocket.ReceiveAsync(new ArraySegment<byte>(buffer), cancellationToken);
|
|
while (!result.CloseStatus.HasValue)
|
|
{
|
|
await webSocket.SendAsync(new ArraySegment<byte>(buffer, 0, result.Count), result.MessageType, result.EndOfMessage, cancellationToken);
|
|
result = await webSocket.ReceiveAsync(new ArraySegment<byte>(buffer), cancellationToken);
|
|
}
|
|
await webSocket.CloseAsync(result.CloseStatus.Value, result.CloseStatusDescription, cancellationToken);
|
|
}
|
|
}
|
|
}
|