103 lines
3.4 KiB
C#
103 lines
3.4 KiB
C#
// <copyright file="TestHttpServer.NetFramework.cs" company="OpenTelemetry Authors">
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// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// </copyright>
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#if NETFRAMEWORK
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using System.Net;
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using Xunit.Abstractions;
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namespace IntegrationTests.Helpers;
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public class TestHttpServer : IDisposable
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{
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private readonly ITestOutputHelper _output;
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private readonly Action<HttpListenerContext> _requestHandler;
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private readonly HttpListener _listener;
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private readonly Thread _listenerThread;
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public TestHttpServer(ITestOutputHelper output, Action<HttpListenerContext> requestHandler, string host, string sufix = "/")
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{
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_output = output;
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_requestHandler = requestHandler;
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Port = TcpPortProvider.GetOpenPort();
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_listener = new HttpListener();
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_listener.Start();
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var prefix = new UriBuilder("http", host, Port, sufix).ToString(); // See https://docs.microsoft.com/en-us/dotnet/api/system.net.httplistenerprefixcollection.add?redirectedfrom=MSDN&view=net-6.0#remarks for info about the host value.
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_listener.Prefixes.Add(prefix);
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WriteOutput($"Listening on '{prefix}'");
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_listenerThread = new Thread(HandleHttpRequests);
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_listenerThread.Start();
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}
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/// <summary>
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/// Gets the TCP port that this listener is listening on.
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/// </summary>
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public int Port { get; }
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public void Dispose()
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{
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WriteOutput($"Shutting down");
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_listener.Close();
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_listenerThread.Join();
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}
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private void HandleHttpRequests()
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{
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while (_listener.IsListening)
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{
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try
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{
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var ctx = _listener.GetContext();
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_requestHandler(ctx);
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}
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catch (HttpListenerException)
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{
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// listener was stopped,
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// ignore to let the loop end and the method return
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}
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catch (ObjectDisposedException)
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{
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// the response has been already disposed.
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}
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catch (InvalidOperationException)
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{
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// this can occur when setting Response.ContentLength64, with the framework claiming that the response has already been submitted
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// for now ignore, and we'll see if this introduces downstream issues
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}
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catch (Exception) when (!_listener.IsListening)
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{
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// we don't care about any exception when listener is stopped
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}
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catch (Exception ex)
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{
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// somethig unexpected happened
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// log instead of crashing the thread
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WriteOutput(ex.ToString());
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}
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}
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}
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private void WriteOutput(string msg)
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{
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const string name = nameof(TestHttpServer);
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_output.WriteLine($"[{name}]: {msg}");
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}
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}
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#endif
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