Question

此操作过滤器似乎不能始终如一地工作。有时它会关闭SSL，有时则不会。我已将它应用于整个控制器的声明。

   public class SSLFilter:ActionFilterAttribute
    {
            public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        HttpRequestBase req = filterContext.HttpContext.Request;
        HttpResponseBase res = filterContext.HttpContext.Response;

        if (req.IsSecureConnection)
        {
            var builder = new UriBuilder(req.Url)
            {
                Scheme = Uri.UriSchemeHttp,
                Port = 80
            };
            res.Redirect(builder.Uri.ToString());
        }
        base.OnActionExecuting(filterContext);
    }
    }

这有点奇怪......为什么它可能偶尔起作用的任何想法？

Answer 1

您是否尝试使用[RequireHttps]属性修改控制器/操作？

糟糕，没有注意到你在询问ASP.NET MVC 2.这个属性仅在ASP.NET MVC 3中可用，所以这里是它的源代码（在ASP.NET MVC 3中实现）： / p>

using System;
using System.Diagnostics.CodeAnalysis;
using System.Web.Mvc.Resources;

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, Inherited = true, AllowMultiple = false)]
public class RequireHttpsAttribute : FilterAttribute, IAuthorizationFilter {

    public virtual void OnAuthorization(AuthorizationContext filterContext) {
        if (filterContext == null) {
            throw new ArgumentNullException("filterContext");
        }

        if (!filterContext.HttpContext.Request.IsSecureConnection) {
            HandleNonHttpsRequest(filterContext);
        }
    }

    protected virtual void HandleNonHttpsRequest(AuthorizationContext filterContext) {
        // only redirect for GET requests, otherwise the browser might not propagate the verb and request
        // body correctly.

        if (!String.Equals(filterContext.HttpContext.Request.HttpMethod, "GET", StringComparison.OrdinalIgnoreCase)) {
            throw new InvalidOperationException(MvcResources.RequireHttpsAttribute_MustUseSsl);
        }

        // redirect to HTTPS version of page
        string url = "https://" + filterContext.HttpContext.Request.Url.Host + filterContext.HttpContext.Request.RawUrl;
        filterContext.Result = new RedirectResult(url);
    }

}

请注意，如何使用RedirectResult而不是执行任何重定向，这是在ASP.NET MVC中执行重定向的正确方法=＆gt;通过返回行动结果：

filterContext.Result = new RedirectResult(url);

不仅如此，这将执行正确的重定向，而且这是如何使操作的执行短路。从语义上讲，您的过滤器实际上应该是IAuthorizationFilter，因为您在此处阻止对某些资源的访问。

在Asp.Net MVC2控制器上关闭SSL的ActionFilterAttribute不能始终如一地工作

1 个答案: