public static bool DetermineApplicationTrust(ActivationContext activationContext, TrustManagerContext context)
{
if (activationContext == null)
{
throw new ArgumentNullException("activationContext");
}
AppDomainManager domainManager = AppDomain.CurrentDomain.DomainManager;
if (domainManager != null)
{
HostSecurityManager hostSecurityManager = domainManager.HostSecurityManager;
if (hostSecurityManager != null && (hostSecurityManager.Flags & HostSecurityManagerOptions.HostDetermineApplicationTrust) == HostSecurityManagerOptions.HostDetermineApplicationTrust)
{
ApplicationTrust applicationTrust = hostSecurityManager.DetermineApplicationTrust(CmsUtils.MergeApplicationEvidence((Evidence)null, activationContext.Identity, activationContext, (string[])null), (Evidence)null, context);
if (applicationTrust == null)
{
return(false);
}
return(applicationTrust.IsApplicationTrustedToRun);
}
}
ApplicationTrust applicationTrustInternal = ApplicationSecurityManager.DetermineApplicationTrustInternal(activationContext, context);
if (applicationTrustInternal == null)
{
return(false);
}
return(applicationTrustInternal.IsApplicationTrustedToRun);
}
private static IApplicationTrustManager DecodeAppTrustManager()
{
if (File.InternalExists(ApplicationSecurityManager.s_machineConfigFile))
{
string end;
using (FileStream fileStream = new FileStream(ApplicationSecurityManager.s_machineConfigFile, FileMode.Open, FileAccess.Read))
end = new StreamReader((Stream)fileStream).ReadToEnd();
SecurityElement securityElement1 = SecurityElement.FromString(end).SearchForChildByTag("mscorlib");
if (securityElement1 != null)
{
SecurityElement securityElement2 = securityElement1.SearchForChildByTag("security");
if (securityElement2 != null)
{
SecurityElement securityElement3 = securityElement2.SearchForChildByTag("policy");
if (securityElement3 != null)
{
SecurityElement securityElement4 = securityElement3.SearchForChildByTag("ApplicationSecurityManager");
if (securityElement4 != null)
{
SecurityElement elTrustManager = securityElement4.SearchForChildByTag("IApplicationTrustManager");
if (elTrustManager != null)
{
IApplicationTrustManager applicationTrustManager = ApplicationSecurityManager.DecodeAppTrustManagerFromElement(elTrustManager);
if (applicationTrustManager != null)
{
return(applicationTrustManager);
}
}
}
}
}
}
}
return(ApplicationSecurityManager.DecodeAppTrustManagerFromElement(ApplicationSecurityManager.CreateDefaultApplicationTrustManagerElement()));
}