add support for pipestream for multiple httpclient support

src/CSharp/EasyMicroservices.Laboratory.Tests/EasyMicroservices.Laboratory.Tests.csproj

@@ -1,13 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp3.1;net6.0;net5.0;net48;net452;net7.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net48;net452;net7.0</TargetFrameworks>
     <IsPackable>false</IsPackable>
     <LangVersion>latest</LangVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="EasyMicroservices.Tests" Version="0.0.0.3" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.0" />
   </ItemGroup>
 

src/CSharp/EasyMicroservices.Laboratory.Tests/Engine/Net/Http/HttpHandlerTest.cs

@@ -2,6 +2,8 @@
 using EasyMicroservices.Laboratory.Engine;
 using EasyMicroservices.Laboratory.Engine.Net.Http;
 using EasyMicroservices.Laboratory.Models;
+using System.Collections.Generic;
+using System.Linq;
 using System.Net.Http;
 using System.Threading.Tasks;
 using Xunit;
@@ -37,6 +39,64 @@ public async Task CheckSimpleRequestAndResponse(string request, string response)
             Assert.Equal(await httpResponse.Content.ReadAsStringAsync(), response);
         }
 
+        [Theory]
+        [InlineData($"Hello Ali \r\n Hi Mahdi", "Reza")]
+        [InlineData($"Hello Ali \r\n Hi Mahdi2", "Reza2")]
+        [InlineData($"Hello Ali \r\n Hi Mahdi3", "Reza3")]
+        public async Task ConcurrentCheckSimpleRequestAndResponse(string request, string response)
+        {
+            request = NormalizeOSText(request);
+            response = NormalizeOSText(response);
+            ResourceManager resourceManager = new ResourceManager();
+            resourceManager.Append(request, GetHttpResponseHeaders(response));
+            HttpHandler httpHandler = new HttpHandler(resourceManager);
+            var port = await httpHandler.Start();
+
+            List<Task<bool>> all = new List<Task<bool>>();
+            for (int i = 0; i < 100; i++)
+            {
+                all.Add(Task.Run(async () =>
+                {
+                    HttpClient httpClient = new HttpClient();
+                    var data = new StringContent(request);
+                    var httpResponse = await httpClient.PostAsync($"http://localhost:{port}", data);
+                    Assert.Equal(await httpResponse.Content.ReadAsStringAsync(), response);
+                    return true;
+                }));
+            }
+            await Task.WhenAll(all);
+            Assert.True(all.All(x => x.Result));
+        }
+
+        [Theory]
+        [InlineData($"Hello Ali \r\n Hi Mahdi", "Reza")]
+        [InlineData($"Hello Ali \r\n Hi Mahdi2", "Reza2")]
+        [InlineData($"Hello Ali \r\n Hi Mahdi3", "Reza3")]
+        public async Task ConcurrentSingleHttpClientCheckSimpleRequestAndResponse(string request, string response)
+        {
+            request = NormalizeOSText(request);
+            response = NormalizeOSText(response);
+            ResourceManager resourceManager = new ResourceManager();
+            resourceManager.Append(request, GetHttpResponseHeaders(response));
+            HttpHandler httpHandler = new HttpHandler(resourceManager);
+            var port = await httpHandler.Start();
+            HttpClient httpClient = new HttpClient();
+
+            List<Task<bool>> all = new List<Task<bool>>();
+            for (int i = 0; i < 100; i++)
+            {
+                all.Add(Task.Run(async () =>
+                {
+                    var data = new StringContent(request);
+                    var httpResponse = await httpClient.PostAsync($"http://localhost:{port}", data);
+                    Assert.Equal(await httpResponse.Content.ReadAsStringAsync(), response);
+                    return true;
+                }));
+            }
+            await Task.WhenAll(all);
+            Assert.True(all.All(x => x.Result));
+        }
+
         [Theory]
         [InlineData("Hello Ali \r\n Hi Mahdi", $"POST / HTTP/1.1\r\nHost: localhost:*MyPort*\r\nContent-Type: text/plain; charset=utf-8\r\nContent-Length: 21\r\n\r\nHello Ali \r\n Hi Mahdi")]
         public async Task CheckSimpleRequestToGiveMeFullRequestHeaderValue(string request, string response)
@@ -75,7 +135,7 @@ public async Task CheckSimpleRequestToGiveMeLastFullRequestHeaderValue(string re
             var httpResponse = await httpClient.PostAsync($"http://localhost:{port}", data);
             var textResponse = await httpResponse.Content.ReadAsStringAsync();
 
-            httpClient.DefaultRequestHeaders.Clear();
+            httpClient = new HttpClient();
             httpClient.DefaultRequestHeaders.Add(RequestTypeHeaderConstants.RequestTypeHeader, RequestTypeHeaderConstants.GiveMeLastFullRequestHeaderValue);
             httpResponse = await httpClient.GetAsync($"http://localhost:{port}");
             textResponse = await httpResponse.Content.ReadAsStringAsync();
@@ -178,23 +238,31 @@ public async Task CheckScope()
             resourceManager.Append(scope);
             HttpHandler httpHandler = new HttpHandler(resourceManager);
             var port = await httpHandler.Start();
+            var addHeaders = (HttpClient client) =>
+            {
+                client.DefaultRequestHeaders.Add("x-amz-meta-title", "someTitle");
+                client.DefaultRequestHeaders.Add("User-Agent", "aws-sdk-dotnet-coreclr/3.7.101.44 aws-sdk-dotnet-core/3.7.103.6 .NET_Core/6.0.11 OS/Microsoft_Windows_10.0.22000 ClientAsync");
+                client.DefaultRequestHeaders.Add("amz-sdk-invocation-id", "guid");
+                client.DefaultRequestHeaders.Add("amz-sdk-request", "attempt=1; max=5");
+                client.DefaultRequestHeaders.Add("X-Amz-Date", "20230107T162454Z");
+                client.DefaultRequestHeaders.Add("X-Amz-Content-SHA256", "sha256");
+                client.DefaultRequestHeaders.Add("Authorization", "empty");
+                client.DefaultRequestHeaders.Add("Host", "s3.eu-west-1.amazonaws.com");
+            };
             HttpClient httpClient = new HttpClient();
-            httpClient.DefaultRequestHeaders.Add("x-amz-meta-title", "someTitle");
-            httpClient.DefaultRequestHeaders.Add("User-Agent", "aws-sdk-dotnet-coreclr/3.7.101.44 aws-sdk-dotnet-core/3.7.103.6 .NET_Core/6.0.11 OS/Microsoft_Windows_10.0.22000 ClientAsync");
-            httpClient.DefaultRequestHeaders.Add("amz-sdk-invocation-id", "guid");
-            httpClient.DefaultRequestHeaders.Add("amz-sdk-request", "attempt=1; max=5");
-            httpClient.DefaultRequestHeaders.Add("X-Amz-Date", "20230107T162454Z");
-            httpClient.DefaultRequestHeaders.Add("X-Amz-Content-SHA256", "sha256");
-            httpClient.DefaultRequestHeaders.Add("Authorization", "empty");
-            httpClient.DefaultRequestHeaders.Add("Host", "s3.eu-west-1.amazonaws.com");
+            addHeaders(httpClient);
             var httpResponse = await httpClient.PutAsync($"http://localhost:{port}", null);
             var textResponse = await httpResponse.Content.ReadAsStringAsync();
             Assert.Equal("Ali", textResponse);
 
+            httpClient = new HttpClient();
+            addHeaders(httpClient);
             httpResponse = await httpClient.PutAsync($"http://localhost:{port}", null);
             textResponse = await httpResponse.Content.ReadAsStringAsync();
             Assert.Equal("Reza", textResponse);
 
+            httpClient = new HttpClient();
+            addHeaders(httpClient);
             httpResponse = await httpClient.PutAsync($"http://localhost:{port}", null);
             textResponse = await httpResponse.Content.ReadAsStringAsync();
             Assert.Equal("Ali", textResponse);

src/CSharp/EasyMicroservices.Laboratory/EasyMicroservices.Laboratory.csproj

@@ -4,7 +4,7 @@
     <Platforms>AnyCPU;x64;x86</Platforms>
     <Authors>EasyMicroservices</Authors>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
-    <Version>0.0.0.11</Version>
+    <Version>0.0.0.12</Version>
     <Description>Laboratory of http client.</Description>
     <Copyright>[email protected]</Copyright>
     <PackageTags>test,tests,http,https,httpclient,laboratory</PackageTags>

src/CSharp/EasyMicroservices.Laboratory/Engine/Net/Http/HttpHandler.cs

@@ -1,6 +1,8 @@
-using EasyMicroservices.Utilities.Constants;
+using EasyMicroservices.Laboratory.IO;
+using EasyMicroservices.Utilities.Constants;
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Net.Sockets;
 using System.Text;
 using System.Threading.Tasks;
@@ -21,14 +23,15 @@ public HttpHandler(ResourceManager resourceManager) : base(resourceManager)
 
         }
 
+
         /// <summary>
         /// Handle Tcp client of a http client
         /// </summary>
         /// <param name="tcpClient"></param>
         /// <returns></returns>
         protected override async Task HandleTcpClient(TcpClient tcpClient)
         {
-            using var stream = tcpClient.GetStream();
+            using var stream = new PipelineStream(tcpClient.GetStream());
             string firstLine = await ReadLineAsync(stream);
             StringBuilder fullBody = new StringBuilder();
             Dictionary<string, string> headers = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
@@ -58,6 +61,7 @@ protected override async Task HandleTcpClient(TcpClient tcpClient)
                 fullBody.Append(requestBody);
             }
             await WriteResponseAsync(firstLine, headers, requestBody, fullBody, stream);
+            tcpClient.Client.Shutdown(SocketShutdown.Send);
         }
     }
 }

src/CSharp/EasyMicroservices.Laboratory/Engine/Net/TcpHandler.cs

@@ -1,11 +1,13 @@
 using EasyMicroservices.Laboratory.Constants;
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Net;
 using System.Net.Sockets;
 using System.Text;
+using System.Threading;
 using System.Threading.Tasks;
 
 namespace EasyMicroservices.Laboratory.Engine.Net
@@ -69,7 +71,12 @@ public void Stop()
         }
 
         TcpListener _tcpListener;
-        Task InternalStart(int port)
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="port"></param>
+        /// <returns></returns>
+        protected virtual Task InternalStart(int port)
         {
             _tcpListener = new TcpListener(IPAddress.Any, port);
             _tcpListener.Start();
@@ -80,17 +87,7 @@ Task InternalStart(int port)
                     try
                     {
                         var tcpClient = await _tcpListener.AcceptTcpClientAsync();
-                        _ = Task.Run(async () =>
-                        {
-                            try
-                            {
-                                await HandleTcpClient(tcpClient);
-                            }
-                            catch
-                            {
-                                tcpClient.Close();
-                            }
-                        });
+                        ThreadPool.QueueUserWorkItem(InternalHandleTcpClient, tcpClient);
                     }
                     catch
                     {
@@ -101,6 +98,19 @@ Task InternalStart(int port)
             return TaskHelper.GetCompletedTask();
         }
 
+        async void InternalHandleTcpClient(object tcpClient)
+        {
+            var client = (TcpClient)tcpClient;
+            try
+            {
+                await HandleTcpClient(client);
+            }
+            catch
+            {
+                client.Close();
+            }
+        }
+
         /// <summary>
         /// Handle a Tcp client
         /// </summary>
@@ -201,6 +211,7 @@ public async Task WriteResponseAsync(string firstLine, Dictionary<string, string
             _lastResponseBody = responseBody;
             var responseBodyBytes = Encoding.UTF8.GetBytes(responseBody);
             await stream.WriteAsync(responseBodyBytes, 0, responseBodyBytes.Length);
+            await stream.FlushAsync();
         }
 
         string GetGiveMeFullRequestHeaderValueResponse(string firstLine, Dictionary<string, string> requestHeaders, string requestBody)

src/CSharp/EasyMicroservices.Laboratory/IO/PipelineStream.cs

@@ -0,0 +1,73 @@
+using System.IO;
+using System.Net.Sockets;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace EasyMicroservices.Laboratory.IO
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    internal class PipelineStream : Stream
+    {
+        PipelineStreamReader pipelineStreamReader;
+        NetworkStream _stream;
+        public PipelineStream(NetworkStream stream)
+        {
+            _stream = stream;
+            pipelineStreamReader = new PipelineStreamReader(_stream);
+        }
+
+        public override bool CanRead => _stream.CanRead;
+
+        public override bool CanSeek => _stream.CanSeek;
+
+        public override bool CanWrite => _stream.CanWrite;
+
+        public override long Length => _stream.Length;
+
+        public override long Position { get => _stream.Position; set => _stream.Position = value; }
+
+        public override void Flush()
+        {
+            _stream.Flush();
+        }
+
+        public override int Read(byte[] buffer, int offset, int count)
+        {
+            throw new System.NotImplementedException();
+        }
+
+        public override long Seek(long offset, SeekOrigin origin)
+        {
+            return _stream.Seek(offset, origin);
+        }
+
+        public override void SetLength(long value)
+        {
+            _stream.SetLength(Length);
+        }
+
+        public override void Write(byte[] buffer, int offset, int count)
+        {
+            throw new System.NotImplementedException();
+        }
+
+        public override Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
+        {
+            return pipelineStreamReader.ReadAsync(buffer, count);
+        }
+
+        public override Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
+        {
+            return _stream.WriteAsync(buffer, offset, count, cancellationToken);
+        }
+
+        protected override void Dispose(bool disposing)
+        {
+            base.Dispose(disposing);
+            _stream.Dispose();
+            pipelineStreamReader.Dispose();
+        }
+    }
+}