Tests: introduce HS compat test with TOR client

.github/workflows/CI.yml

@@ -6,20 +6,36 @@ jobs:
   build_and_test:
     name: Build & Test
     runs-on: ubuntu-20.04
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - dotnet_version: "3.1.x"
+            flag: ""
+          - dotnet_version: "7.0.x"
+            flag: "-p:NET7=true"
     steps:
       - uses: actions/checkout@v2
         with:
           submodules: recursive
-      - name: Setup .NET Core SDK 3.1.x
+      - name: Setup .NET SDK ${{ matrix.dotnet_version }}
         uses: actions/setup-dotnet@v1.7.2
         with:
-          dotnet-version: '3.1.x'
+          dotnet-version: ${{ matrix.dotnet_version }}
       - name: Install dependencies
-        run: dotnet restore
+        run: dotnet restore ${{ matrix.flag }}
       - name: Build
-        run: dotnet build --configuration Release --no-restore
+        run: dotnet build --configuration Release --no-restore ${{ matrix.flag }}
+      # Please keep in mind that NOnion DOES NOT require tor client to function
+      # tor client is only installed here for testing purposes.
+      - name: Install Tor and wait for startup
+        run: |
+          sudo apt install tor
+          echo -e "SOCKSPort 127.0.0.1:9050" | sudo tee -a /etc/tor/torrc
+          sudo systemctl restart tor
+          sleep 2m
       - name: Test
-        run: dotnet test --no-restore --verbosity normal
+        run: dotnet test --no-restore --verbosity normal ${{ matrix.flag }}
 
   sanity_check:
     name: Sanity Check

NOnion.Tests/HiddenServicesTests.cs

@@ -2,9 +2,12 @@
 using System;
 using System.IO;
 using System.Linq;
+using System.Net;
+using System.Net.Http;
 using System.Net.Security;
 using System.Security.Authentication;
 using System.Security.Cryptography;
+using System.Text;
 using System.Threading.Tasks;
 
 using NUnit.Framework;
@@ -133,7 +136,7 @@ public void CanBrowseFacebookOverHSWithTLS()
             Assert.DoesNotThrowAsync(BrowseFacebookOverHSWithTLS);
         }
 
-        public async Task EstablishAndCommunicateOverHSConnectionOnionStyle()
+        private async Task<(TorDirectory, TorServiceHost)> BootstrapDirectoryAndStartHost()
         {
             int descriptorUploadRetryLimit = 2;
 
@@ -151,6 +154,13 @@ public async Task EstablishAndCommunicateOverHSConnectionOnionStyle()
 
             TorLogger.Log("Finished starting HS host");
 
+            return (directory, host);
+        }
+
+        public async Task EstablishAndCommunicateOverHSConnectionOnionStyle()
+        {
+            (var directory, var host) = await BootstrapDirectoryAndStartHost();
+
             var dataToSendAndReceive = new byte[] { 1, 2, 3, 4 };
 
             var serverSide =
@@ -185,6 +195,68 @@ public void CanEstablishAndCommunicateOverHSConnectionOnionStyle()
         {
             Assert.DoesNotThrowAsync(EstablishAndCommunicateOverHSConnectionOnionStyle);
         }
+
+#if NET6_0_OR_GREATER
+        [Test]
+        [Retry(TestsRetryCount)]
+        public void CanConnectToHiddenServiceUsingTorClient()
+        {
+            Assert.DoesNotThrowAsync(ConnectToHiddenServiceUsingTorClient);
+        }
+
+        private async Task ConnectToHiddenServiceUsingTorClient()
+        {
+            (_, var host) = await BootstrapDirectoryAndStartHost();
+
+            var stringToSendAndReceive =
+                "We are using tor!";
+
+            var serverSide =
+                Task.Run(async () => {
+                    var stream = await host.AcceptClientAsync();
+
+                    var httpResponse =
+                        "HTTP/1.1 200 OK\r\n" +
+                        "Server: NOnion\r\n" +
+                        $"Content-Length: {stringToSendAndReceive.Length}\r\n" +
+                        "Connection: close\r\n" +
+                        "Content-Type: text/plain" +
+                        "\r\n" +
+                        "\r\n" +
+                        stringToSendAndReceive +
+                        "\r\n";
+                    var httpResponseBytes =
+                        Encoding.ASCII.GetBytes(httpResponse);
+
+                    await stream.WriteAsync(httpResponseBytes, 0, httpResponseBytes.Length);
+                    await stream.EndAsync();
+                });
+
+            var clientSide =
+                Task.Run(async () => {
+                    var handler = new HttpClientHandler
+                    {
+                        Proxy = new WebProxy(new Uri("socks5://localhost:9050"))
+                    };
+
+                    TestContext.Progress.WriteLine("Trying to connect to hidden service...");
+                    using (handler)
+                    using (var httpClient = new HttpClient(handler))
+                    {
+                        // Sometimes tor client takes a while to bootstrap and stalls
+                        // the request.
+                        httpClient.Timeout = TimeSpan.FromMinutes(20);
+                        var result = await httpClient.GetStringAsync("http://" + host.ExportUrl());
+                        Assert.AreEqual(result, stringToSendAndReceive);
+                    }
+                }
+            );
+
+            await TaskUtils.WhenAllFailFast(serverSide, clientSide);
+
+            ((IDisposable)host).Dispose();
+        }
+#endif
     }
 }
 

NOnion.Tests/NOnion.Tests.csproj

@@ -1,14 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
-
+    <TargetFramework Condition="'$(NET7)' != 'true'">netcoreapp3.1</TargetFramework>
+    <TargetFramework Condition="'$(NET7)' == 'true'">net7.0</TargetFramework>
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="NUnit" Version="3.12.0" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.16.1" />
+    <PackageReference Include="NUnit" Version="3.13.3" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.5.0" />
     <PackageReference Include="Portable.BouncyCastle" Version="1.8.10" />
   </ItemGroup>