檢測信任級別

.NET 應用程序如何檢測其執行所在的信任級別？

具體來說，我想要一種方法來做類似的事情

 if (RUNNING IN GREATER THAN MEDIUM TRUST) { 
   // set private fields & properties using reflection
 }

我目前的解決方案是使用

public static class CodeAccessSecurityTool {
   private static volatile bool _unrestrictedFeatureSet = false;
   private static volatile bool _determinedUnrestrictedFeatureSet = false;
   private static readonly object _threadLock = new object();

   public static bool HasUnrestrictedFeatureSet {
       get {
           if (!_determinedUnrestrictedFeatureSet)
               lock (_threadLock) {
                   if (!_determinedUnrestrictedFeatureSet) {
                       try {
                           // See if we're running in full trust
                           new PermissionSet(PermissionState.Unrestricted).Demand();
                           _unrestrictedFeatureSet = true;
                       } catch (SecurityException) {
                           _unrestrictedFeatureSet = false;
                       }
                       _determinedUnrestrictedFeatureSet = true;
                   }
               }
           return _unrestrictedFeatureSet;
       }
   }
}

但是，這有點駭人聽聞。

也許這會有所幫助：

ActivationContext ac = AppDomain.CurrentDomain.ActivationContext;
ApplicationIdentity ai = ac.Identity;
var applicationTrust = new System.Security.Policy.ApplicationTrust(ai);
var isUnrestricted = applicationTrust.DefaultGrantSet.PermissionSet.IsUnrestricted();

或者

AppDomain.CurrentDomain.ApplicationTrust
 .DefaultGrantSet.PermissionSet.IsUnrestricted();

從 .NET 4.0 開始，該AppDomain.IsFullyTrusted屬性可能會有所幫助。

如果您希望在目前應用程序域上對此進行測試，請使用：

if (AppDomain.CurrentDomain.IsFullyTrusted)
{
   // ...
}

引用自：https://stackoverflow.com/questions/15001626