Question

将[RequireHttps]置于某个操作上并且用户从HTTP切换到HTTPS后，所有后续链接都将保留为HTTPS ...

有没有办法切换回HTTP？

Answer 1

从技术上讲，你可以做到这一点

你可以RequireHttpsAttribute {{1}}并反转它。

在实践中，您可能不应该

如果会话仍然有效，look at the source。这可以是it is generally inadvisable to return to HTTP，例如foundation for a variety of attacks。

Answer 2

有一个非常详细的说明，介绍如何在此链接处理从特定操作方法的HTTPS切换回HTTP

http://blog.clicktricity.com/2010/03/switching-to-https-and-back-to-http-in-asp-net-mvc/

Answer 3

这是我使用的'ExitHttpsIfNotRequired'属性：

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)]
public class RetainHttpsAttribute : Attribute
{
}

public class ExitHttpsIfNotRequiredAttribute : FilterAttribute, IAuthorizationFilter
{
    public void OnAuthorization(AuthorizationContext filterContext)
    {
        // Abort if it's not a secure connection  
        if (!filterContext.HttpContext.Request.IsSecureConnection) return;

        if (filterContext.ActionDescriptor.ControllerDescriptor.ControllerName == "sdsd") return;

        // Abort if it's a child controller
        if (filterContext.IsChildAction) 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;

        // Abort if the error controller is being called - we may wish to display the error within a https page
        if (filterContext.ActionDescriptor.ControllerDescriptor.ControllerName == "Error") return;

        // No problems - redirect to HTTP
        string url = "http://" + filterContext.HttpContext.Request.Url.Host + filterContext.HttpContext.Request.RawUrl;
        filterContext.Result = new RedirectResult(url);
    }
}

ASP.NET MVC [RequireHttps] - 返回http

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