85 lines
2.7 KiB
C#
85 lines
2.7 KiB
C#
using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Routing;
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using Microsoft.AspNetCore.Routing.Matching;
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namespace zero.Routing;
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// see https://github.com/umbraco/Umbraco-CMS/blob/5bfab13dc5a268714aad2426a2b68ab5561a6407/src/Umbraco.Web.Website/Routing/NotFoundSelectorPolicy.cs
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/// <summary>
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/// Used to handle 404 routes that haven't been handled by the end user
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/// </summary>
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public class NotFoundSelectorPolicy : MatcherPolicy, IEndpointSelectorPolicy
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{
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//private readonly Lazy<Endpoint> _notFound;
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private readonly EndpointDataSource _endpointDataSource;
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public NotFoundSelectorPolicy(EndpointDataSource endpointDataSource)
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{
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//_notFound = new Lazy<Endpoint>(GetNotFoundEndpoint);
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_endpointDataSource = endpointDataSource;
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}
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// return the endpoint for the RenderController.Index action.
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//private Endpoint GetNotFoundEndpoint()
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//{
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// Endpoint e = _endpointDataSource.Endpoints.First(x =>
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// {
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// // return the endpoint for the RenderController.Index action.
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// ControllerActionDescriptor descriptor = x.Metadata?.GetMetadata<ControllerActionDescriptor>();
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// return descriptor?.ControllerTypeInfo == typeof(RenderController)
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// && descriptor?.ActionName == nameof(RenderController.Index);
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// });
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// return e;
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//}
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public override int Order => 0;
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public bool AppliesToEndpoints(IReadOnlyList<Endpoint> endpoints)
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{
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// Don't apply this filter to any endpoint group that is a controller route
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// i.e. only dynamic routes.
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foreach (Endpoint endpoint in endpoints)
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{
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ControllerAttribute controller = endpoint.Metadata?.GetMetadata<ControllerAttribute>();
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if (controller != null)
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{
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return false;
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}
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}
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// then ensure this is only applied if all endpoints are IDynamicEndpointMetadata
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return endpoints.All(x => x.Metadata?.GetMetadata<IDynamicEndpointMetadata>() != null);
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}
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public Task ApplyAsync(HttpContext httpContext, CandidateSet candidates)
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{
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if (AllInvalid(candidates))
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{
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//UmbracoRouteValues umbracoRouteValues = httpContext.Features.Get<UmbracoRouteValues>();
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//if (umbracoRouteValues?.PublishedRequest != null
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// && !umbracoRouteValues.PublishedRequest.HasPublishedContent()
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// && umbracoRouteValues.PublishedRequest.ResponseStatusCode == StatusCodes.Status404NotFound)
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//{
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// // not found/404
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// httpContext.SetEndpoint(_notFound.Value);
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//}
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}
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return Task.CompletedTask;
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}
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private static bool AllInvalid(CandidateSet candidates)
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{
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for (int i = 0; i < candidates.Count; i++)
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{
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if (candidates.IsValidCandidate(i))
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{
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return false;
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}
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}
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return true;
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}
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}
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