如何确定是否当前的应用是中等信任 [英] How to determine if the current application is Medium Trust

问题描述

我想确保我的ASP.Net库将在中等信任的工作。我有问题，但是，在我需要禁用位code，如果它正处于中级信任运行。

I am trying to make sure my ASP.Net library will work under Medium Trust. I'm having problems however in that I need to disable a bit of code if it is being run under medium trust.

我如何从C＃确定？

具体来说，我试图读取web.config中的customErrors部分，我得到安全错误

Specifically, I'm trying to read the customErrors section from web.config and I'm getting security errors

推荐答案

下面本文介绍一种机制来确定的信任级别：

This article here describes a mechanism to determine the trust level:

<一个href=\"http://blogs.msdn.com/b/dmitryr/archive/2007/01/23/finding-out-the-current-trust-level-in-asp-net.aspx\"相对=nofollow>找出在ASP.NET 当前信任级别

下面是code以防万一死链接：

Here is the code just in case the link dies:

AspNetHostingPermissionLevel GetCurrentTrustLevel() {
  foreach (AspNetHostingPermissionLevel trustLevel in
      new AspNetHostingPermissionLevel [] {
        AspNetHostingPermissionLevel.Unrestricted,
        AspNetHostingPermissionLevel.High,
        AspNetHostingPermissionLevel.Medium,
        AspNetHostingPermissionLevel.Low,
        AspNetHostingPermissionLevel.Minimal 
      } ) {
    try {
      new AspNetHostingPermission(trustLevel).Demand();
    }
    catch (System.Security.SecurityException ) {
      continue;
    }

    return trustLevel;
   }

   return AspNetHostingPermissionLevel.None;
}

我只是测试它在ASP.NET应用程序MVC3在中，然后完全信任运行，它做什么，它在锡说。

I just tested it in an ASP.NET MVC3 application running at Medium and then Full trust and it does what it says on the tin.

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