asp.net - ASP.net MVC中的自定义表单例份验证/授权方案

Question

我正在尝试使用表单例份验证在ASP.NET MVC中创建自定义身份验证方案。我可能会在站点上拥有将要管理的不同区域的想法-批准人区域和一般用户区域，这些区域将使用不同的登录页面，依此类推。所以这就是我要发生的事情。

用户访问限制页面(现在我已使用客户的AuthorizeAttribute保护它)

用户被重定向到特定的登录页面(而不是Web.config的登录页面)。

(通过自定义数据库方案)验证用户凭据并登录用户。

非常感谢您的帮助!!!

这是我到目前为止所拥有的，并且不起作用:

 public class AdministratorAccountController : Controller
{
    public ActionResult Login()
    {
        return View("Login");
    }

    [HttpPost]
    public ActionResult Login(AdministratorAccountModels.LoginModel model, string returnUrl)
    {
        if (ModelState.IsValid)
            if (model.UserName == "admin" && model.Password == "pass") // This will be pulled from DB etc
            {
                var ticket = new FormsAuthenticationTicket(1,               // version 
                                                           model.UserName,  // user name
                                                           DateTime.Now,    // create time
                                                           DateTime.Now.AddSeconds(30), // expire time
                                                           false,           // persistent
                                                           "");             // user data

                var strEncryptedTicket = FormsAuthentication.Encrypt(ticket);
                var cookie = new HttpCookie(FormsAuthentication.FormsCookieName, strEncryptedTicket);
                Response.Cookies.Add(cookie);

                if (!String.IsNullOrEmpty(returnUrl))
                {
                    return Redirect(returnUrl);
                }
                else
                {
                    return RedirectToAction("Index", "Home");
                }
            }
            else
            {
                ModelState.AddModelError("", "The user name or password provided is incorrect.");
            }

        // If we got this far, something failed, redisplay form
        return View(model);
    }

    [AdministratorAuthorize]
    public ActionResult MainMenu()
    {
        return View();
    }

    public class AdministratorAuthorizeAttribute : AuthorizeAttribute
    {
        protected override bool AuthorizeCore(HttpContextBase httpContext)
        {
            var authenCookie = httpContext.Request.Cookies.Get(FormsAuthentication.FormsCookieName);
            if (authenCookie == null) return false;

            var ticket = FormsAuthentication.Decrypt(authenCookie.Value);
            var id = new FormsIdentity(ticket);
            var astrRoles = ticket.UserData.Split(new[] { ',' });
            var principal = new GenericPrincipal(id, astrRoles);
            httpContext.User = principal;
            return true;
        }

        protected override void HandleUnauthorizedRequest(AuthorizationContext filterContext)
        {
            var model = new AdministratorAccountModels.LoginModel();
            var viewData = new ViewDataDictionary(model);

            filterContext.Result = new ViewResult { ViewName = "Login", ViewData = viewData };

        }
    }
}

Answer 1

我结合使用minus4建议的代码和上面的我自己的代码来创建此简化的场景，该场景可能会对其他人有所帮助。一开始，我添加了一些让我感到困惑的事情的评论。

 public class AdministratorAccountController : Controller
{
    public ActionResult Login()
    {
        return View("Login");
    }

    [HttpPost]
    public ActionResult Login(AdministratorAccountModels.LoginModel model, string returnUrl)
    {
        if (ModelState.IsValid)
            // Here you would call a service to process your authentication
            if (model.UserName == "admin" && model.Password == "pass")
            {
                // * !!! *
                // Creating a FromsAuthenticationTicket is what 
                // will set RequestContext.HttpContext.Request.IsAuthenticated to True
                // in the AdminAuthorize attribute code below
                // * !!! *
                var ticket = new FormsAuthenticationTicket(1, // version 
                                                           model.UserName, // user name
                                                           DateTime.Now, // create time
                                                           DateTime.Now.AddSeconds(30), // expire time
                                                           false, // persistent
                                                           ""); // user data, such as roles

                var strEncryptedTicket = FormsAuthentication.Encrypt(ticket);
                var cookie = new HttpCookie(FormsAuthentication.FormsCookieName, strEncryptedTicket);
                Response.Cookies.Add(cookie);

                // Redirect back to the page you were trying to access
                if (!String.IsNullOrEmpty(returnUrl))
                {
                    return Redirect(returnUrl);
                }
                else
                {
                    return RedirectToAction("Index", "Home");
                }
            }
            else
            {
                ModelState.AddModelError("", "The user name or password provided is incorrect.");
            }

        // If we got this far, something failed, redisplay form
        return View(model);
    }

    [AdminAuthorize]
    public ActionResult MainMenu()
    {
        return View();
    }

    public class AdminAuthorize : ActionFilterAttribute
    {
        public override void OnActionExecuting(ActionExecutingContext filterContext)
        {
            if (!filterContext.RequestContext.HttpContext.Request.IsAuthenticated)
            {
                // Redirect to the needed login page
                // This can be pulled from config file or anything else
                filterContext.HttpContext.Response.Redirect("/AdministratorAccount/Login?ReturnUrl=" 
                                        + HttpUtility.UrlEncode(filterContext.HttpContext.Request.RawUrl));               
            }

            base.OnActionExecuting(filterContext);
        }
    }
}