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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using Microsoft.AspNetCore.Authentication;
using Microsoft.Extensions.DependencyInjection.Extensions;
namespace Microsoft.Extensions.DependencyInjection;
/// <summary>
/// Extension methods for setting up authentication services in an <see cref="IServiceCollection" />.
/// </summary>
public static class AuthenticationCoreServiceCollectionExtensions
{
/// <summary>
/// Add core authentication services needed for <see cref="IAuthenticationService"/>.
/// </summary>
/// <param name="services">The <see cref="IServiceCollection"/>.</param>
/// <returns>The service collection.</returns>
public static IServiceCollection AddAuthenticationCore(this IServiceCollection services)
{
ArgumentNullException.ThrowIfNull(services);
services.TryAddScoped<IAuthenticationService, AuthenticationService>();
services.TryAddSingleton<IClaimsTransformation, NoopClaimsTransformation>(); // Can be replaced with scoped ones that use DbContext
services.TryAddScoped<IAuthenticationHandlerProvider, AuthenticationHandlerProvider>();
services.TryAddSingleton<IAuthenticationSchemeProvider, AuthenticationSchemeProvider>();
return services;
}
/// <summary>
/// Add core authentication services needed for <see cref="IAuthenticationService"/>.
/// </summary>
/// <param name="services">The <see cref="IServiceCollection"/>.</param>
/// <param name="configureOptions">Used to configure the <see cref="AuthenticationOptions"/>.</param>
/// <returns>The service collection.</returns>
public static IServiceCollection AddAuthenticationCore(this IServiceCollection services, Action<AuthenticationOptions> configureOptions)
{
ArgumentNullException.ThrowIfNull(services);
ArgumentNullException.ThrowIfNull(configureOptions);
services.AddAuthenticationCore();
services.Configure(configureOptions);
return services;
}
}
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