NHibernate + Remoting = ReflectionPermission异常

Question

我们正在处理一个问题，当在具有完全信任环境的机器(实际上是我们的开发机器)中使用带有远程处理的NHibernate时。

当尝试将先前从服务器检索的对象作为参数发送时，问题就会发生，该对象在其中一个属性(惰性属性)中包含一个NHibernate代理。

由于我们在开发机器上，web应用程序的信任级别没有限制(它被设置为Full)，另外，我们已经在CAS中将NHibernate和Castle的程序集配置为完全信任(甚至认为这不是必要的，因为IIS中的远程处理应用程序具有完全信任级别)。

有没有人知道是什么导致了这种异常？下面的堆栈跟踪。

  InnerException: System.Security.SecurityException
   Message="Falha na solicitação da permissão de tipo 'System.Security.Permissions.ReflectionPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'."
   Source="mscorlib"
   GrantedSet=""
   PermissionState="<IPermission class=\"System.Security.Permissions.ReflectionPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089\"\r\nversion=\"1\"\r\nFlags=\"ReflectionEmit\"/>\r\n"
   RefusedSet=""
   Url=""
   StackTrace:
        em System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)
        em System.Security.CodeAccessPermission.Demand()
        em System.Reflection.Emit.AssemblyBuilder.DefineDynamicModuleInternalNoLock(String name, Boolean emitSymbolInfo, StackCrawlMark& stackMark)
        em System.Reflection.Emit.AssemblyBuilder.DefineDynamicModuleInternal(String name, Boolean emitSymbolInfo, StackCrawlMark& stackMark)
        em System.Reflection.Emit.AssemblyBuilder.DefineDynamicModule(String name, Boolean emitSymbolInfo)
        em Castle.DynamicProxy.ModuleScope.CreateModule(Boolean signStrongName)
        em Castle.DynamicProxy.ModuleScope.ObtainDynamicModuleWithWeakName()
        em Castle.DynamicProxy.ModuleScope.ObtainDynamicModule(Boolean isStrongNamed)
        em Castle.DynamicProxy.Generators.Emitters.ClassEmitter.CreateTypeBuilder(ModuleScope modulescope, String name, Type baseType, Type[] interfaces, TypeAttributes flags, Boolean forceUnsigned)
        em Castle.DynamicProxy.Generators.Emitters.ClassEmitter..ctor(ModuleScope modulescope, String name, Type baseType, Type[] interfaces, TypeAttributes flags, Boolean forceUnsigned)
        em Castle.DynamicProxy.Generators.Emitters.ClassEmitter..ctor(ModuleScope modulescope, String name, Type baseType, Type[] interfaces, TypeAttributes flags)
        em Castle.DynamicProxy.Generators.Emitters.ClassEmitter..ctor(ModuleScope modulescope, String name, Type baseType, Type[] interfaces)
        em Castle.DynamicProxy.Generators.BaseProxyGenerator.BuildClassEmitter(String typeName, Type parentType, Type[] interfaces)
        em Castle.DynamicProxy.Generators.BaseProxyGenerator.BuildClassEmitter(String typeName, Type parentType, IList interfaceList)
        em Castle.DynamicProxy.Generators.ClassProxyGenerator.GenerateCode(Type[] interfaces, ProxyGenerationOptions options)
        em Castle.DynamicProxy.Serialization.ProxyObjectReference.RecreateClassProxy()
        em Castle.DynamicProxy.Serialization.ProxyObjectReference.RecreateProxy()
        em Castle.DynamicProxy.Serialization.ProxyObjectReference..ctor(SerializationInfo info, StreamingContext context)

提前谢谢你。

Answer 1

实际上，我与Pedro一起工作时，我们发现了问题:远程服务的序列化程序必须显式配置，以允许服务器端的完全信任调用。

类似于(配置文件)：

<channels>
<channel ref="http">
<serverProviders> 
<provider ref="wsdl" />
<formatter ref="soap" typeFilterLevel=Low />
<formatter ref="binary" typeFilterLevel=Low />
</serverProviders>
</channel>
</channels>

或者(通过编程)：

BinaryServerFormatterSinkProvider provider = new BinaryServerFormatterSinkProvider();
provider.TypeFilterLevel = TypeFilterLevel.Full;

希望这对任何人都有帮助。

致以问候。