asp.net-mvc - ASP.NET MVC : OutputCache attribute disregards RequireHttps attribute?

Question

我有一个 ASP.NET MVC 3 应用程序，其操作同时使用 RequireHttps 和 OutputCache 属性:

[RequireHttps]
[OutputCache(Duration = 14400, VaryByCustom = "CurrentUser"]
public ActionResult VersionB()
{
  return View();
}

当我导航到该页面时，我被重定向到 HTTPS，正如预期的那样。

但是，在初始页面加载之后，我仍然可以通过 HTTP 访问该页面。如果我删除 OutputCache 属性，我将无法再通过 HTTP 访问该页面。

OutputCache 似乎忽略了 HTTPS，从而允许对页面进行不安全的访问。甚至可以缓存通过 HTTPS 提供的操作吗？

Answer 1

[RequireHttps]属性实现有缺陷，没有考虑缓存。

这里有一个修复:

[AttributeUsage(AttributeTargets.Method | AttributeTargets.Class, Inherited = true, AllowMultiple = false)]
public class MyRequireHttpsAttribute : RequireHttpsAttribute
{
    protected virtual bool AuthorizeCore(HttpContextBase httpContext)
    {
        return httpContext.Request.IsSecureConnection;
    }

    public override void OnAuthorization(AuthorizationContext filterContext)
    {
        if (!AuthorizeCore(filterContext.HttpContext))
        {
            this.HandleNonHttpsRequest(filterContext);
        }
        else
        {
            var cache = filterContext.HttpContext.Response.Cache;
            cache.SetProxyMaxAge(new TimeSpan(0L));
            cache.AddValidationCallback(this.CacheValidateHandler, null);
        }
    }

    private void CacheValidateHandler(HttpContext context, object data, ref HttpValidationStatus validationStatus)
    {
        validationStatus = this.OnCacheAuthorization(new HttpContextWrapper(context));
    }

    protected virtual HttpValidationStatus OnCacheAuthorization(HttpContextBase httpContext)
    {
        if (!AuthorizeCore(httpContext))
        {
            return HttpValidationStatus.IgnoreThisRequest;
        }
        return HttpValidationStatus.Valid;
    }
}

然后:

[MyRequireHttps]
[OutputCache(Duration = 14400, VaryByCustom = "CurrentUser"]
public ActionResult VersionB()
{
    return View();
}