No-op Authorization middleware for Razor Pages

Workaround for #7011

Author: pranavkm

src/Mvc/src/Microsoft.AspNetCore.Mvc.RazorPages/ApplicationModels/PageRouteMetadata.cs

@@ -4,6 +4,7 @@
 namespace Microsoft.AspNetCore.Mvc.ApplicationModels
 {
     // This is used to store the uncombined parts of the final page route
+    // Note: This type name is referenced by name in AuthorizationMiddleware, do not change this without addressing https://github.com/aspnet/AspNetCore/issues/7011
     internal class PageRouteMetadata
     {
         public PageRouteMetadata(string pageRoute, string routeTemplate)

src/Mvc/test/Microsoft.AspNetCore.Mvc.FunctionalTests/RazorPagesTest.cs

@@ -1190,11 +1190,11 @@ public async Task PagesCanByRoutedToApplicationRoot_ViaAddPageRoute()
         public async Task AuthFiltersAppliedToPageModel_AreExecuted()
         {
             // Act
-            var response = await Client.GetAsync("/ModelWithAuthFilter");
+            var response = await Client.GetAsync("/Pages/ModelWithAuthFilter");
 
             // Assert
             Assert.Equal(HttpStatusCode.Redirect, response.StatusCode);
-            Assert.Equal("/Login?ReturnUrl=%2FModelWithAuthFilter", response.Headers.Location.PathAndQuery);
+            Assert.Equal("/Login?ReturnUrl=%2FPages%2FModelWithAuthFilter", response.Headers.Location.PathAndQuery);
         }
 
         [Fact]

src/Mvc/test/Microsoft.AspNetCore.Mvc.FunctionalTests/RazorPagesWithEndpointRoutingTest.cs

@@ -0,0 +1,55 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System.Net;
+using System.Net.Http;
+using System.Threading.Tasks;
+using Xunit;
+
+namespace Microsoft.AspNetCore.Mvc.FunctionalTests
+{
+    public class RazorPagesWithEndpointRoutingTest : IClassFixture<MvcTestFixture<RazorPagesWebSite.StartupWithEndpointRouting>>
+    {
+        public RazorPagesWithEndpointRoutingTest(MvcTestFixture<RazorPagesWebSite.StartupWithEndpointRouting> fixture)
+        {
+            Client = fixture.CreateDefaultClient();
+        }
+
+        public HttpClient Client { get; }
+
+        [Fact]
+        public async Task Authorize_AppliedUsingConvention_Works()
+        {
+            // Act
+            var response = await Client.GetAsync("/Conventions/AuthFolder");
+
+            // Assert
+            await response.AssertStatusCodeAsync(HttpStatusCode.Redirect);
+            Assert.Equal("/Login?ReturnUrl=%2FConventions%2FAuthFolder", response.Headers.Location.PathAndQuery);
+        }
+
+        [Fact]
+        public async Task Authorize_AppliedUsingConvention_CanByOverridenByAllowAnonymousAppliedToModel()
+        {
+            // Act
+            var response = await Client.GetAsync("/Conventions/AuthFolder/AnonymousViaModel");
+
+            // Assert
+            await response.AssertStatusCodeAsync(HttpStatusCode.OK);
+
+            var content = await response.Content.ReadAsStringAsync();
+            Assert.Equal("Hello from Anonymous", content.Trim());
+        }
+
+        [Fact]
+        public async Task Authorize_AppliedUsingAttributeOnModel_Works()
+        {
+            // Act
+            var response = await Client.GetAsync("/ModelWithAuthFilter");
+
+            // Assert
+            await response.AssertStatusCodeAsync(HttpStatusCode.Redirect);
+            Assert.Equal("/Login?ReturnUrl=%2FModelWithAuthFilter", response.Headers.Location.PathAndQuery);
+        }
+    }
+}

src/Mvc/test/WebSites/RazorPagesWebSite/ModelWithAuthFilter.cs renamed to src/Mvc/test/WebSites/RazorPagesWebSite/Pages/ModelWithAuthFilter.cs

@@ -0,0 +1,36 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using Microsoft.AspNetCore.Authentication.Cookies;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace RazorPagesWebSite
+{
+    public class StartupWithEndpointRouting
+    {
+        public void ConfigureServices(IServiceCollection services)
+        {
+            services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
+                .AddCookie(options => options.LoginPath = "/Login");
+
+            services.AddMvc()
+                .AddRazorPagesOptions(options =>
+                {
+                    options.Conventions.AuthorizeFolder("/Admin");
+                })
+                .SetCompatibilityVersion(CompatibilityVersion.Latest);
+        }
+
+        public void Configure(IApplicationBuilder app)
+        {
+            app.UseRouting(routes =>
+            {
+                routes.MapApplication();
+            });
+
+            app.UseAuthorization();
+        }
+    }
+}

src/Mvc/test/WebSites/RazorPagesWebSite/ModelWithAuthFilter.cshtml renamed to src/Mvc/test/WebSites/RazorPagesWebSite/Pages/ModelWithAuthFilter.cshtml

@@ -8,7 +8,6 @@
 using Microsoft.AspNetCore.Authorization.Policy;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Http.Endpoints;
-using Microsoft.AspNetCore.Http.Features;
 using Microsoft.Extensions.DependencyInjection;
 
 namespace Microsoft.AspNetCore.Authorization
@@ -45,11 +44,19 @@ public async Task Invoke(HttpContext context)
                 throw new ArgumentNullException(nameof(context));
             }
 
+            var endpoint = context.GetEndpoint();
+
+            // Workaround for https://github.com/aspnet/AspNetCore/issues/7011. Do not use the AuthorizationMiddleware for Razor Pages
+            if (endpoint.Metadata.Any(m => m.GetType().FullName == "Microsoft.AspNetCore.Mvc.ApplicationModels.PageRouteMetadata"))
+            {
+                await _next(context);
+                return;
+            }
+
             // Flag to indicate to other systems, e.g. MVC, that authorization middleware was run for this request
             context.Items[AuthorizationMiddlewareInvokedKey] = AuthorizationMiddlewareInvokedValue;
 
             // IMPORTANT: Changes to authorization logic should be mirrored in MVC's AuthorizeFilter
-            var endpoint = context.GetEndpoint();
             var authorizeData = endpoint?.Metadata.GetOrderedMetadata<IAuthorizeData>() ?? Array.Empty<IAuthorizeData>();
             var policy = await AuthorizationPolicy.CombineAsync(_policyProvider, authorizeData);
             if (policy == null)