Hi,
My web application use Castle.Core. When it is hosted on a medium trust
environment, I've got the following error message :
*Inheritance security rules violated while overriding member:
'Castle.Core.Logging.LevelFilteredLogger.InitializeLifetimeService()'.
Security accessibility of the overriding method must match the security
accessibility of the method being overriden. *
*[TypeLoadException: Inheritance security rules violated while overriding
member:
'Castle.Core.Logging.LevelFilteredLogger.InitializeLifetimeService()'.
Security accessibility of the overriding method must match the security
accessibility of the method being overriden.]*
* Castle.DynamicProxy.ProxyGenerator..ctor(IProxyBuilder builder) +0*
* Castle.DynamicProxy.ProxyGenerator..ctor() +63*
It happens when I try to make a new instance of ProxyGenerator.
In the source code, I saw that :
public ProxyGenerator(IProxyBuilder builder)
{
this.proxyBuilder = builder;
if (this.HasSecurityPermission())
{
this.Logger = new TraceLogger("Castle.DynamicProxy"
, LoggerLevel.Warn);
}
}
private bool HasSecurityPermission()
{
return new SecurityPermission
(SecurityPermissionFlag.ControlEvidence | SecurityPermissionFlag.ControlPolicy).
IsGranted();
}
It seems that the HasSecurityPermission method return *true* even in medium
trust. I looked at the history of the method and it seems to be old, maybe
this code don't work anymore with .net 4.5. I try to make it work but
couldn't find a way.
Is there a way to make dynamic proxy work under medium trust ?
Instead of instanciating a Logger on the ProxyGenerator constructor, why
not adding a signature wich take ILogger parameter ? For example :
public ProxyGenerator(IProxyBuilder builder, ILogger logger)
{
this.proxyBuilder = builder;
this.logger = logger;
}
My application is hosted on IIS, and the only modification I made was to
set <trust level="Medium" />. I use version 3.2.1 of Castle.Core provided
by nuget.
Thanks for the help,
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