aspnetcore/src/Microsoft.AspNet.Authentica.../FacebookAuthenticationMiddl...

60 lines
2.8 KiB
C#

// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.Globalization;
using Microsoft.AspNet.Authentication.OAuth;
using Microsoft.AspNet.Builder;
using Microsoft.AspNet.DataProtection;
using Microsoft.Framework.Internal;
using Microsoft.Framework.Logging;
using Microsoft.Framework.OptionsModel;
namespace Microsoft.AspNet.Authentication.Facebook
{
/// <summary>
/// An ASP.NET middleware for authenticating users using Facebook.
/// </summary>
public class FacebookAuthenticationMiddleware : OAuthAuthenticationMiddleware<FacebookAuthenticationOptions, IFacebookAuthenticationNotifications>
{
/// <summary>
/// Initializes a new <see cref="FacebookAuthenticationMiddleware"/>.
/// </summary>
/// <param name="next">The next middleware in the application pipeline to invoke.</param>
/// <param name="dataProtectionProvider"></param>
/// <param name="loggerFactory"></param>
/// <param name="options">Configuration options for the middleware.</param>
public FacebookAuthenticationMiddleware(
[NotNull] RequestDelegate next,
[NotNull] IDataProtectionProvider dataProtectionProvider,
[NotNull] ILoggerFactory loggerFactory,
[NotNull] IOptions<ExternalAuthenticationOptions> externalOptions,
[NotNull] IOptions<FacebookAuthenticationOptions> options,
ConfigureOptions<FacebookAuthenticationOptions> configureOptions = null)
: base(next, dataProtectionProvider, loggerFactory, externalOptions, options, configureOptions)
{
if (string.IsNullOrWhiteSpace(Options.AppId))
{
throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, Resources.Exception_OptionMustBeProvided, "AppId"));
}
if (string.IsNullOrWhiteSpace(Options.AppSecret))
{
throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, Resources.Exception_OptionMustBeProvided, "AppSecret"));
}
if (Options.Notifications == null)
{
Options.Notifications = new FacebookAuthenticationNotifications();
}
}
/// <summary>
/// Provides the <see cref="AuthenticationHandler"/> object for processing authentication-related requests.
/// </summary>
/// <returns>An <see cref="AuthenticationHandler"/> configured with the <see cref="FacebookAuthenticationOptions"/> supplied to the constructor.</returns>
protected override AuthenticationHandler<FacebookAuthenticationOptions> CreateHandler()
{
return new FacebookAuthenticationHandler(Backchannel);
}
}
}