'Login as another user' MVC 4 Windows Authentication

Question

I have an intranet project written in MVC 4 which uses Windows Authentication to authorise and authenticate users.

I need to add a \'Login as another user\' function

Answer 1

This method will always log the user out and redirect to the home page. I also added [AllowAnonymous] to make sure everybody can access this method.

    [AllowAnonymous]
    public ActionResult LogOut()
    {
        HttpCookie cookie = Request.Cookies["TSWA-Last-User"];

        cookie = new HttpCookie("TSWA-Last-User", string.Empty)
        {
            Expires = DateTime.Now.AddYears(-5)
        };
        Response.Cookies.Set(cookie);

        Response.AppendHeader("Connection", "close");
        Response.StatusCode = 401; // Unauthorized;
        Response.Clear();

        // redirect to home
        Response.Write("");
        Response.End();           

        return RedirectToAction("Index");

    }