import univention.admin
lo,po=univention.admin.uldap.getMachineConnection()
univention.admin.modules.update()
schema = lo.get_schema()
from ldap.schema import (SubSchema, ObjectClass, AttributeType)
#attributes = schema.attribute_types(schema.listall(ObjectClass), ignore_dit_content_rule=True, raise_keyerror=False)
ocs = [schema.get_obj(ObjectClass, x) for x in schema.listall(ObjectClass)]
for module in univention.admin.modules.modules.values():
	if not hasattr(module, 'mapping'):
		continue
	for prop in module.mapping._map.keys():
		try:
			desc = module.property_descriptions[prop]
		except KeyError:
			print 'Missing property description', module.module, prop
			continue
		attr = module.mapping.mapName(prop)
		used_ocs = [oc for oc in ocs if attr in oc.must or attr in oc.may]
		required = [oc for oc in ocs if attr in oc.must]
		if prop in ('domain', 'description'):
			continue
		if required and not desc.required and not desc.base_default:
			print len(required), 'Missing required flag', module.module, prop, attr, 'object_classes=', ', '.join(x.names[0] for x in used_ocs)#, 'default=', desc.base_default