Exit Https & Retain Https Attributes

Exit https is checking for the RetainHttpsAttribute so it is provided here as well.

RetainHttpsAttribute

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
namespace Project.MvcBase.Filters
{
    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)]
    public class RetainHttpsAttribute : Attribute
    {
    }
}

ExitHttpsAttribute

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web.Mvc;
 
namespace Project.MvcBase.Filters
{
    public class ExitHttpsAttribute : FilterAttribute, IAuthorizationFilter
    {
        public void OnAuthorization(AuthorizationContext filterContext)
        {
            // abort if it's not a secure connection
            if (!filterContext.HttpContext.Request.IsSecureConnection) return;
 
            // abort if a [RequireHttps] attribute is applied to controller or action
            if (filterContext.ActionDescriptor.ControllerDescriptor.GetCustomAttributes(typeof(RequireHttpsAttribute), true).Length > 0) return;
            if (filterContext.ActionDescriptor.GetCustomAttributes(typeof(RequireHttpsAttribute), true).Length > 0) return;
 
            // abort if a [RetainHttps] attribute is applied to controller or action
            if (filterContext.ActionDescriptor.ControllerDescriptor.GetCustomAttributes(typeof(RetainHttpsAttribute), true).Length > 0) return;
            if (filterContext.ActionDescriptor.GetCustomAttributes(typeof(RetainHttpsAttribute), true).Length > 0) return;
 
            // abort if it's not a GET request - we don't want to be redirecting on a form post
            if (!String.Equals(filterContext.HttpContext.Request.HttpMethod, "GET", StringComparison.OrdinalIgnoreCase)) return;
 
            // redirect to HTTP
            string url = "http://" + filterContext.HttpContext.Request.Url.Host + filterContext.HttpContext.Request.RawUrl;
            filterContext.Result = new RedirectResult(url);
        }
    }
}