Use default encoders all the time

Fixes #234

src/Microsoft.AspNet.Diagnostics/Views/BaseView.cs

@@ -12,7 +12,6 @@ using System.Text;
 using System.Text.Encodings.Web;
 using System.Threading.Tasks;
 using Microsoft.AspNet.Http;
-using Microsoft.Extensions.WebEncoders;
 
 namespace Microsoft.AspNet.Diagnostics.Views
 {
@@ -44,17 +43,17 @@ namespace Microsoft.AspNet.Diagnostics.Views
         /// <summary>
         /// Html encoder used to encode content.
         /// </summary>
-        protected HtmlEncoder HtmlEncoder { get; set; }
+        protected HtmlEncoder HtmlEncoder { get; set; } = HtmlEncoder.Default;
 
         /// <summary>
         /// Url encoder used to encode content.
         /// </summary>
-        protected UrlEncoder UrlEncoder { get; set; }
+        protected UrlEncoder UrlEncoder { get; set; } = UrlEncoder.Default;
 
         /// <summary>
         /// JavaScript encoder used to encode content.
         /// </summary>
-        protected JavaScriptEncoder JavaScriptEncoder { get; set; }
+        protected JavaScriptEncoder JavaScriptEncoder { get; set; } = JavaScriptEncoder.Default;
 
         /// <summary>
         /// Execute an individual request
@@ -66,9 +65,6 @@ namespace Microsoft.AspNet.Diagnostics.Views
             Request = Context.Request;
             Response = Context.Response;
             Output = new StreamWriter(Response.Body, Encoding.UTF8, 4096, leaveOpen: true);
-            HtmlEncoder = context.RequestServices.GetHtmlEncoder();
-            UrlEncoder = context.RequestServices.GetUrlEncoder();
-            JavaScriptEncoder = context.RequestServices.GetJavaScriptEncoder();
             await ExecuteAsync();
             Output.Dispose();
         }

src/Microsoft.AspNet.Diagnostics/project.json

@@ -17,15 +17,10 @@
     "Microsoft.Extensions.Logging.Abstractions": "1.0.0-*",
     "Microsoft.Extensions.Options": "1.0.0-*",
     "Microsoft.Extensions.PlatformAbstractions": "1.0.0-*",
-    "Microsoft.Extensions.WebEncoders": "1.0.0-*",
     "System.Diagnostics.DiagnosticSource": "4.0.0-*"
   },
   "frameworks": {
-    "net451": {
+    "net451": { },
-      "frameworkAssemblies": {
-        "System.Runtime": ""
-      }
-    },
     "dotnet5.4": {
       "dependencies": {
         "System.Reflection.Extensions": "4.0.1-*"

test/Microsoft.AspNet.Diagnostics.Tests/RuntimeInfoMiddlewareTest.cs

@@ -5,12 +5,9 @@ using System.IO;
 using System.Linq;
 using System.Reflection;
 using System.Text;
-using System.Text.Encodings.Web;
 using System.Threading.Tasks;
 using Microsoft.AspNet.Http;
-using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.PlatformAbstractions;
-using Microsoft.Extensions.WebEncoders.Testing;
 using Moq;
 using Xunit;
 
@@ -159,59 +156,5 @@ namespace Microsoft.AspNet.Diagnostics.Tests
                 Assert.Contains("<td>Path2</td>", response);
             }
         }
-
-        [Fact]
-        public async void Invoke_WithMatchingPath_ReturnsInfoPage_UsingCustomHtmlEncoder()
-        {
-            // Arrange
-            var libraryManagerMock = new Mock<ILibraryManager>(MockBehavior.Strict);
-            libraryManagerMock.Setup(l => l.GetLibraries()).Returns(new[] {
-                        new Library("LibInfo1", "1.0.0-beta1", "Path1", string.Empty, Enumerable.Empty<string>(), Enumerable.Empty<AssemblyName>()),
-                    });
-
-            var runtimeEnvironmentMock = new Mock<IRuntimeEnvironment>(MockBehavior.Strict);
-            runtimeEnvironmentMock.Setup(r => r.OperatingSystem).Returns("Windows");
-            runtimeEnvironmentMock.Setup(r => r.RuntimeArchitecture).Returns("x64");
-            runtimeEnvironmentMock.Setup(r => r.RuntimeType).Returns("clr");
-            runtimeEnvironmentMock.Setup(r => r.RuntimeVersion).Returns("1.0.0");
-
-            RequestDelegate next = _ =>
-            {
-                return Task.FromResult<object>(null);
-            };
-
-            var middleware = new RuntimeInfoMiddleware(
-                next,
-                new RuntimeInfoPageOptions(),
-                libraryManagerMock.Object,
-                runtimeEnvironmentMock.Object);
-
-            var buffer = new byte[4096];
-            using (var responseStream = new MemoryStream(buffer))
-            {
-                var contextMock = new Mock<HttpContext>(MockBehavior.Strict);
-                contextMock
-                    .SetupGet(c => c.Request.Path)
-                    .Returns(new PathString("/runtimeinfo"));
-                contextMock
-                    .SetupGet(c => c.Response.Body)
-                    .Returns(responseStream);
-                contextMock
-                    .SetupGet(c => c.RequestServices)
-                    .Returns(new ServiceCollection()
-                                .AddSingleton<HtmlEncoder>(new HtmlTestEncoder())
-                                .BuildServiceProvider());
-
-                // Act
-                await middleware.Invoke(contextMock.Object);
-
-                // Assert
-                string response = Encoding.UTF8.GetString(buffer);
-
-                Assert.True(response.Contains("<td>HtmlEncode[[LibInfo1]]</td>"));
-                Assert.True(response.Contains("<td>HtmlEncode[[1.0.0-beta1]]</td>"));
-                Assert.True(response.Contains("<td>HtmlEncode[[Path1]]</td>"));
-            }
-        }
     }
 }