| | | 1 | | // Licensed to the .NET Foundation under one or more agreements. |
| | | 2 | | // The .NET Foundation licenses this file to you under the MIT license. |
| | | 3 | | |
| | | 4 | | using System; |
| | | 5 | | using CoreWCF.Channels; |
| | | 6 | | using CoreWCF.Description; |
| | | 7 | | using Microsoft.Extensions.DependencyInjection; |
| | | 8 | | using Microsoft.Extensions.DependencyInjection.Extensions; |
| | | 9 | | |
| | | 10 | | namespace CoreWCF.Configuration |
| | | 11 | | { |
| | | 12 | | public static class MetadataServiceCollectionExtensions |
| | | 13 | | { |
| | | 14 | | public static IServiceCollection AddServiceModelMetadata(this IServiceCollection services) |
| | | 15 | | { |
| | 24 | 16 | | if (services == null) |
| | | 17 | | { |
| | 0 | 18 | | throw new ArgumentNullException(nameof(services)); |
| | | 19 | | } |
| | | 20 | | |
| | 24 | 21 | | int count = services.Count; |
| | 24 | 22 | | int existingTransportServiceBuilderIndex = -1; |
| | 7372 | 23 | | for (int i = 0; i < count; i++) |
| | | 24 | | { |
| | 3662 | 25 | | ServiceDescriptor service = services[i]; |
| | 3662 | 26 | | if (service.ServiceType == typeof(ITransportServiceBuilder)) |
| | | 27 | | { |
| | 0 | 28 | | existingTransportServiceBuilderIndex = i; |
| | 0 | 29 | | break; |
| | | 30 | | } |
| | | 31 | | } |
| | | 32 | | |
| | 24 | 33 | | var serviceDescriptor = ServiceDescriptor.Singleton<ITransportServiceBuilder, MetadataTransportServiceBuilde |
| | 24 | 34 | | if (existingTransportServiceBuilderIndex == -1) |
| | | 35 | | { |
| | | 36 | | // No existing ITransportServiceBuilder instances so can place at end |
| | 24 | 37 | | services.Add(serviceDescriptor); |
| | | 38 | | } |
| | | 39 | | else |
| | | 40 | | { |
| | | 41 | | // There's already an ITransportServiceBuidler and metadata needs to be inserted first |
| | | 42 | | // Otherwise an HTTP based binding could capture requests meant for metadata. |
| | 0 | 43 | | services.Insert(existingTransportServiceBuilderIndex, serviceDescriptor); |
| | | 44 | | } |
| | | 45 | | |
| | 24 | 46 | | services.AddSingleton<ServiceMetadataBehavior>(); |
| | 48 | 47 | | services.AddSingleton<IServiceBehavior>(serviceProvider => serviceProvider.GetRequiredService<ServiceMetadat |
| | 24 | 48 | | return services; |
| | | 49 | | } |
| | | 50 | | } |
| | | 51 | | } |