MVC 3 AuthorizeAttribute Redirect with Custom Message
How can I create a custom AuthorizeAttribute that specifies a message in the form of a string parameter and then passes that along to the login page?
For example, ideally it would be cool to do this:
[Authorize(Message = "Access to the blah blah function requires login. Please login or create an account")]
public ActionResult SomeAction()
{
return View();
}
Then, in the Login action, I could do something like this:
public ActionResult Login(string message = "")
{
ViewData.Message = message;
return View();
}
And finally in the view I can do this:
@if (!String.IsNullOrEmpty(ViewData.Message))
{
<div class="message">@ViewData.Message</div>开发者_JAVA技巧;
}
<form> blah blah </form>
Basically I want to pass a custom message to the login page so I can display a message specific to what the user is trying to access at that particular time.
You can try something like this:
public class CustomAuthorizeAttribute : AuthorizeAttribute
{
public string Message { get; set; }
public override void OnAuthorization(AuthorizationContext filterContext)
{
var result = new ViewResult();
result.ViewName = "Login.cshtml"; //this can be a property you don't have to hard code it
result.MasterName = "_Layout.cshtml"; //this can also be a property
result.ViewBag.Message = this.Message;
filterContext.Result = result;
}
Usage:
[CustomAuthorize(Message = "You are not authorized.")]
public ActionResult Index()
{
return View();
}
web.config
<authentication mode="Forms">
<forms name="SqlAuthCookie"
loginUrl="~/Account/LogOnYouHavenotRight"
timeout="2880" />
</authentication>
Controller:
public ActionResult LogOn()
{
return View();
}
public ActionResult LogOnYouHavenotRight()
{
return View();
}
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult LogOn(LogOnModel model, string returnUrl)
{
}
In both Views:
Html.BeginForm("LogOn", "Account" )
精彩评论