Implements Public Access in netcore (#10137)

* Getting new netcore PublicAccessChecker in place

* Adds full test coverage for PublicAccessChecker

* remove PublicAccessComposer

* adjust namespaces, ensure RoleManager works, separate public access controller, reduce content controller

* Implements the required methods on IMemberManager, removes old migrated code

* Updates routing to be able to re-route, Fixes middleware ordering ensuring endpoints are last, refactors pipeline options, adds public access middleware, ensures public access follows all hops

* adds note

* adds note

* Cleans up ext methods, ensures that members identity is added on both front-end and back ends. updates how UmbracoApplicationBuilder works in that it explicitly starts endpoints at the time of calling.

* Changes name to IUmbracoEndpointBuilder

* adds note

* Fixing tests, fixing error describers so there's 2x one for back office, one for members, fixes TryConvertTo, fixes login redirect

* fixing build

* Fixes keepalive, fixes PublicAccessMiddleware to not throw, updates startup code to be more clear and removes magic that registers middleware.

* adds note

* removes unused filter, fixes build

* fixes WebPath and tests

* Looks up entities in one query

* remove usings

* Fix test, remove stylesheet

* Set status code before we write to response to avoid error

* Ensures that users and members are validated when logging in. Shares more code between users and members.

* Fixes RepositoryCacheKeys to ensure the keys are normalized

* oops didn't mean to commit this

* Fix casing issues with caching, stop boxing value types for all cache operations, stop re-creating string keys in DefaultRepositoryCachePolicy

* bah, far out this keeps getting recommitted. sorry

Co-authored-by: Bjarke Berg <mail@bergmania.dk>

src/Umbraco.Core/Routing/IPublishedRouter.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Threading.Tasks;
+using Umbraco.Cms.Core.Models.PublishedContent;
 
 namespace Umbraco.Cms.Core.Routing
 {
@@ -24,18 +25,28 @@ namespace Umbraco.Cms.Core.Routing
         Task<IPublishedRequest> RouteRequestAsync(IPublishedRequestBuilder request, RouteRequestOptions options);
 
         /// <summary>
-        /// Updates the request to "not found".
+        /// Updates the request to use the specified <see cref="IPublishedContent"/> item, or NULL
         /// </summary>
         /// <param name="request">The request.</param>
         /// <remarks>
-        /// <returns>A new <see cref="IPublishedRequestBuilder"/> based on values from the original <see cref="IPublishedRequest"/></returns>
-        /// <para>This method is invoked when the pipeline decides it cannot render
+        /// <returns>
+        /// A new <see cref="IPublishedRequest"/> based on values from the original <see cref="IPublishedRequest"/>
+        /// and with the re-routed values based on the passed in <see cref="IPublishedContent"/>
+        /// </returns>
+        /// <para>
+        /// This method is used for 2 cases:
+        /// - When the rendering content needs to change due to Public Access rules.
+        /// - When there is nothing to render due to circumstances such as no template files. In this case, NULL is used as the parameter.
+        /// </para>
+        /// <para>
+        /// This method is invoked when the pipeline decides it cannot render
         /// the request, for whatever reason, and wants to force it to be re-routed
-        /// and rendered as if no document were found (404).</para>
-        /// <para>This occurs if there is no template found and route hijacking was not matched.
+        /// and rendered as if no document were found (404).
+        /// This occurs if there is no template found and route hijacking was not matched.
         /// In that case it's the same as if there was no content which means even if there was
-        /// content matched we want to run the request through the last chance finders.</para>
+        /// content matched we want to run the request through the last chance finders.
+        /// </para>
         /// </remarks>
-        IPublishedRequestBuilder UpdateRequestToNotFound(IPublishedRequest request);
+        Task<IPublishedRequest> UpdateRequestAsync(IPublishedRequest request, IPublishedContent publishedContent);
     }
 }