ABPCMS.Web/Controllers/Results/ChallengeResult.cs

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using System.Web;
using System.Web.Mvc;
using Microsoft.Owin.Security;

namespace ABPCMS.Web.Controllers.Results
{
    public class ChallengeResult : HttpUnauthorizedResult
    {
        public ChallengeResult(string provider, string redirectUri)
            : this(provider, redirectUri, null)
        {
        }

        public ChallengeResult(string provider, string redirectUri, string userId)
        {
            LoginProvider = provider;
            RedirectUri = redirectUri;
            UserId = userId;
        }

        public string LoginProvider { get; set; }
        public string RedirectUri { get; set; }
        public string UserId { get; set; }

        public override void ExecuteResult(ControllerContext context)
        {
            var properties = new AuthenticationProperties() { RedirectUri = RedirectUri };
            if (UserId != null)
            {
                properties.Dictionary["XsrfId"] = UserId;
            }

            context.HttpContext.GetOwinContext().Authentication.Challenge(properties, LoginProvider);
        }
    }
}