internal PermissionSetEnumeratorInternal(PermissionSet permSet)
{
this.m_permSet = permSet;
this.enm = new TokenBasedSetEnumerator(permSet.m_permSet);
}
private static void CheckTokenBasedSetHelper(bool ignoreGrants,
TokenBasedSet grants,
TokenBasedSet denied,
TokenBasedSet demands)
{
if (demands == null)
{
return;
}
TokenBasedSetEnumerator enumerator = (TokenBasedSetEnumerator)demands.GetEnum();
while (enumerator.MoveNext())
{
CodeAccessPermission demand = (CodeAccessPermission)enumerator.Current;
int index = enumerator.GetCurrentIndex();
if (demand != null)
{
try
{
// Check to make sure the permission was granted, unless we are supposed
// to ignore grants.
if (!ignoreGrants)
{
CodeAccessPermission grant
= grants != null ? (CodeAccessPermission)grants.GetItem(index) : null;
if (grant != null)
{
grant.CheckDemand(demand);
}
else
{
if (!demand.IsSubsetOf(null))
{
throw new SecurityException(String.Format(Environment.GetResourceString("Security_Generic"), demand.GetType().AssemblyQualifiedName), demand.GetType(), demand.ToXml().ToString());
}
}
}
// Check to make sure our permission was not denied.
if (denied != null)
{
CodeAccessPermission deny
= (CodeAccessPermission)denied.GetItem(index);
if (deny != null && deny.Intersect(demand) != null)
{
throw new SecurityException(String.Format(Environment.GetResourceString("Security_Generic"), demand.GetType().AssemblyQualifiedName), demand.GetType(), demand.ToXml().ToString());
}
}
}
catch (Exception e)
{
// Any exception besides a security exception in this code means that
// a permission was unable to properly handle what we asked of it.
// We will define this to mean that the demand failed.
if (e is SecurityException)
{
throw e;
}
else
{
throw new SecurityException(String.Format(Environment.GetResourceString("Security_Generic"), demand.GetType().AssemblyQualifiedName), demand.GetType(), demand.ToXml().ToString());
}
}
}
}
}
