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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 System.Linq;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc.Core;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
namespace Microsoft.AspNetCore.Mvc;
/// <summary>
/// An <see cref="ActionResult"/> that on execution invokes <see cref="M:HttpContext.SignOutAsync"/>.
/// </summary>
public partial class SignOutResult : ActionResult, IResult
{
/// <summary>
/// Initializes a new instance of <see cref="SignOutResult"/> with the default sign out scheme.
/// </summary>
public SignOutResult()
: this(Array.Empty<string>())
{
}
/// <summary>
/// Initializes a new instance of <see cref="SignOutResult"/> with the default sign out scheme.
/// specified authentication scheme and <paramref name="properties"/>.
/// </summary>
/// <param name="properties"><see cref="AuthenticationProperties"/> used to perform the sign-out operation.</param>
public SignOutResult(AuthenticationProperties properties)
: this(Array.Empty<string>(), properties)
{
}
/// <summary>
/// Initializes a new instance of <see cref="SignOutResult"/> with the
/// specified authentication scheme.
/// </summary>
/// <param name="authenticationScheme">The authentication scheme to use when signing out the user.</param>
public SignOutResult(string authenticationScheme)
: this(new[] { authenticationScheme })
{
}
/// <summary>
/// Initializes a new instance of <see cref="SignOutResult"/> with the
/// specified authentication schemes.
/// </summary>
/// <param name="authenticationSchemes">The authentication schemes to use when signing out the user.</param>
public SignOutResult(IList<string> authenticationSchemes)
: this(authenticationSchemes, properties: null)
{
}
/// <summary>
/// Initializes a new instance of <see cref="SignOutResult"/> with the
/// specified authentication scheme and <paramref name="properties"/>.
/// </summary>
/// <param name="authenticationScheme">The authentication scheme to use when signing out the user.</param>
/// <param name="properties"><see cref="AuthenticationProperties"/> used to perform the sign-out operation.</param>
public SignOutResult(string authenticationScheme, AuthenticationProperties? properties)
: this(new[] { authenticationScheme }, properties)
{
}
/// <summary>
/// Initializes a new instance of <see cref="SignOutResult"/> with the
/// specified authentication schemes and <paramref name="properties"/>.
/// </summary>
/// <param name="authenticationSchemes">The authentication schemes to use when signing out the user.</param>
/// <param name="properties"><see cref="AuthenticationProperties"/> used to perform the sign-out operation.</param>
public SignOutResult(IList<string> authenticationSchemes, AuthenticationProperties? properties)
{
AuthenticationSchemes = authenticationSchemes ?? throw new ArgumentNullException(nameof(authenticationSchemes));
Properties = properties;
}
/// <summary>
/// Gets or sets the authentication schemes that are challenged.
/// </summary>
public IList<string> AuthenticationSchemes { get; set; }
/// <summary>
/// Gets or sets the <see cref="AuthenticationProperties"/> used to perform the sign-out operation.
/// </summary>
public AuthenticationProperties? Properties { get; set; }
/// <inheritdoc />
public override Task ExecuteResultAsync(ActionContext context)
{
ArgumentNullException.ThrowIfNull(context);
return ExecuteAsync(context.HttpContext);
}
/// <inheritdoc />
Task IResult.ExecuteAsync(HttpContext httpContext)
{
return ExecuteAsync(httpContext);
}
private async Task ExecuteAsync(HttpContext httpContext)
{
if (AuthenticationSchemes == null)
{
throw new InvalidOperationException(
Resources.FormatPropertyOfTypeCannotBeNull(
/* property: */ nameof(AuthenticationSchemes),
/* type: */ nameof(SignOutResult)));
}
var loggerFactory = httpContext.RequestServices.GetRequiredService<ILoggerFactory>();
var logger = loggerFactory.CreateLogger(typeof(SignOutResult));
Log.SignOutResultExecuting(logger, AuthenticationSchemes);
if (AuthenticationSchemes.Count == 0)
{
await httpContext.SignOutAsync(Properties);
}
else
{
for (var i = 0; i < AuthenticationSchemes.Count; i++)
{
await httpContext.SignOutAsync(AuthenticationSchemes[i], Properties);
}
}
}
private static partial class Log
{
public static void SignOutResultExecuting(ILogger logger, IList<string> authenticationSchemes)
{
if (logger.IsEnabled(LogLevel.Information))
{
SignOutResultExecuting(logger, authenticationSchemes.ToArray());
}
}
[LoggerMessage(1, LogLevel.Information, $"Executing {nameof(SignOutResult)} with authentication schemes ({{Schemes}}).", EventName = "SignOutResultExecuting", SkipEnabledCheck = true)]
private static partial void SignOutResultExecuting(ILogger logger, string[] schemes);
}
}
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