protected string GetReferrerOrDefaultToAction(string actionName, string controllerName, object routeValues, ReferrerSecurity referrerSecurity = ReferrerSecurity.InternalOnly)
{
if (Request.UrlReferrer == null || !IsAllowedToUseReferrer(referrerSecurity))
{
return Url.Action(actionName, controllerName, new RouteValueDictionary(routeValues));
}
return Request.UrlReferrer.ToString();
}
protected ActionResult RedirectBackOrDefaultToRoute(object routeValues, ReferrerSecurity referrerSecurity = ReferrerSecurity.InternalOnly)
{
return RedirectBackOrDefaultToRoute(new RouteValueDictionary(routeValues), referrerSecurity);
}
protected ActionResult RedirectBackOrDefaultToAction(string actionName, string controllerName, ReferrerSecurity referrerSecurity = ReferrerSecurity.InternalOnly)
{
return RedirectBackOrDefaultToAction(actionName, controllerName, (RouteValueDictionary)null, referrerSecurity);
}
protected ActionResult RedirectBackOrDefaultToAction(string actionName, RouteValueDictionary routeValues, ReferrerSecurity referrerSecurity = ReferrerSecurity.InternalOnly)
{
return RedirectBackOrDefaultToAction(actionName, null, routeValues, referrerSecurity);
}
protected string GetReferrerOrDefaultToAction(string actionName, RouteValueDictionary routeValues, ReferrerSecurity referrerSecurity = ReferrerSecurity.InternalOnly)
{
return GetReferrerOrDefaultToAction(actionName, null, routeValues, referrerSecurity);
}
private bool IsAllowedToUseReferrer(ReferrerSecurity referrerSecurity)
{
if (referrerSecurity == ReferrerSecurity.InternalOrExternal)
{
return true;
}
return Request.UrlReferrer.Host == Request.Url.Host;
}
protected ActionResult RedirectBackOrDefaultToRoute(string routeName, RouteValueDictionary routeValues, ReferrerSecurity referrerSecurity = ReferrerSecurity.InternalOnly)
{
if (Request.UrlReferrer == null || !IsAllowedToUseReferrer(referrerSecurity))
{
return RedirectToRoute(routeName, routeValues);
}
return Redirect(Request.UrlReferrer.ToString());
}
protected ActionResult RedirectBackOrDefaultToRoute(string routeName, ReferrerSecurity referrerSecurity = ReferrerSecurity.InternalOnly)
{
return RedirectBackOrDefaultToRoute(routeName, (RouteValueDictionary)null, referrerSecurity);
}
protected ActionResult RedirectBackOrDefaultToRoute(RouteValueDictionary routeValues, ReferrerSecurity referrerSecurity = ReferrerSecurity.InternalOnly)
{
return RedirectBackOrDefaultToRoute(null, routeValues, referrerSecurity);
}
