#!/usr/share/ucs-test/runner python3
## desc: Tests functionality of nested groups
## roles:
##  - domaincontroller_master
##  - domaincontroller_backup
## packages:
## - univention-admingrp-user-passwordreset
## exposure: dangerous

import univention.config_registry
import univention.testing.strings as uts
import univention.testing.utils as utils
from univention.testing.ucr import UCSTestConfigRegistry
from univention.testing.udm import UCSTestUDM
from univention.testing.utils import fail

default_password = 'univention'


class Account:

	def __init__(self, description, dn, name, password=default_password):
		self.description = description
		self.dn = dn
		self.name = name
		self.password = password

	def __str__(self):
		return f'{self.description} "{self.name}"'


try:
	with UCSTestConfigRegistry() as ucr, UCSTestUDM() as udm:

		# Create new helpdesk group
		try:
			what = 'Helpdesk group'
			helpdesk_group1_dn, helpdesk_group1_name = udm.create_group()
			helpdesk_group1 = Account(what, helpdesk_group1_dn, helpdesk_group1_name)
		except Exception as exc:
			fail(f'Creating {what} failed: {exc}')
		else:
			print(f'Created {helpdesk_group1}')

		# Create new helpdesk user
		try:
			what = 'Helpdesk user'
			helpdesk_user1_dn, helpdesk_user1_name = udm.create_user()
			helpdesk_user1 = Account(what, helpdesk_user1_dn, helpdesk_user1_name)
		except Exception as exc:
			fail(f'Creating {what} failed: {exc}')
		else:
			print(f'Created {helpdesk_user1}')

		# Create new helpdesk user
		try:
			what = 'Helpdesk user'
			helpdesk_user2_dn, helpdesk_user2_name = udm.create_user()
			helpdesk_user2 = Account(what, helpdesk_user2_dn, helpdesk_user2_name)
		except Exception as exc:
			fail(f'Creating {what} failed: {exc}')
		else:
			print(f'Created {helpdesk_user2}')

		# Create new unprotected user
		try:
			what = 'Unprotected user'
			unprotected_user_dn, unprotected_user_name = udm.create_user()
			unprotected_user = Account(what, unprotected_user_dn, unprotected_user_name)
		except Exception as exc:
			fail(f'Creating {what} failed: {exc}')
		else:
			print(f'Created {unprotected_user}')

		# Add helpdesk user to helpdesk group
		try:
			what = 'helpdesk user'
			udm.modify_object('groups/group', dn=helpdesk_group1.dn, append={
				'users': [helpdesk_user1.dn]
			})
		except Exception as exc:
			fail(f'Adding {helpdesk_user1} to corresponding group {helpdesk_group1.name} failed: {exc}')
		else:
			print('Added %s to corresponding group' % what)

		# Create second helpdesk group
		try:
			what = 'Helpdesk group'
			helpdesk_group2_dn, helpdesk_group2_name = udm.create_group()
			helpdesk_group2 = Account(what, helpdesk_group2_dn, helpdesk_group2_name)
		except Exception as exc:
			fail(f'Creating {what} failed: {exc}')
		else:
			print(f'Created {helpdesk_group2}')

		# Add second helpdesk user to second helpdesk group
		try:
			what = 'helpdesk user'
			udm.modify_object('groups/group', dn=helpdesk_group2.dn, append={
				'users': [helpdesk_user2.dn]
			})
		except Exception as exc:
			fail(f'Adding {helpdesk_user2} to corresponding group {helpdesk_group2.name} failed: {exc}')
		else:
			print('Added %s to corresponding group' % what)

		# Create nested group
		try:
			udm.modify_object('groups/group', dn=helpdesk_group1.dn, append={
				'nestedGroup': [helpdesk_group2.dn]
			})
		except Exception as exc:
			fail(f'Cannot create nested group: {exc}')
		else:
			print('Created nested group')

		# Allow users to modify their password in Univention Directory Manager
		univention.config_registry.handler_set([
			f'ldap/acl/user/passwordreset/accesslist/groups/helpdesk-a={helpdesk_group1.dn}',
			'ldap/acl/user/passwordreset/protected/uid=Administrator',
			'ldap/acl/nestedgroups=no'
		])

		# Activate passwordreset ACLs:
		utils.restart_slapd()

		# Test if Helpdesk user can reset password of unprotected user
		try:
			udm.modify_object('users/user', binddn=helpdesk_user1.dn, bindpwd=helpdesk_user1.password, dn=unprotected_user.dn, set={
				'password': 'univention2',
				'overridePWHistory': 1,
				'overridePWLength': 1
			})
		except Exception as exc:
			fail(f'{helpdesk_user1} cannot reset password of {unprotected_user}: {exc}')
		else:
			print(f'OK: {helpdesk_user1} reset password of {unprotected_user} successfully')

		# Test if nested helpdesk user can reset password of unprotected user
		try:
			udm.modify_object('users/user', binddn=helpdesk_user2.dn, bindpwd=helpdesk_user2.password, dn=unprotected_user.dn, set={
				'password': 'univention2',
				'overridePWHistory': 1,
				'overridePWLength': 1
			})
		except Exception:
			print(f'OK: Nested {helpdesk_user2} cannot reset password of {unprotected_user}, as it should be')
		else:
			fail(f'Nested {helpdesk_user2} can reset password of {unprotected_user}, but should not be able to')

		# Enable nested group tests
		univention.config_registry.handler_set(['ldap/acl/nestedgroups=yes'])
		utils.restart_slapd()

		# Test if helpdesk user can still reset password of unprotected user
		try:
			udm.modify_object('users/user', binddn=helpdesk_user1.dn, bindpwd=helpdesk_user1.password, dn=unprotected_user.dn, set={
				'password': uts.random_string(),
				'overridePWHistory': 1,
				'overridePWLength': 1
			})
		except Exception as exc:
			fail(f'{helpdesk_user1} can not set password of {unprotected_user}: {exc}')
		else:
			print(f'OK: {helpdesk_user1} set password of {unprotected_user} successfully')

		# Test if nested helpdesk user can reset password of unprotected user
		try:
			udm.modify_object('users/user', binddn=helpdesk_user2.dn, bindpwd=helpdesk_user2.password, dn=unprotected_user.dn, set={
				'password': uts.random_string(),
				'overridePWHistory': 1,
				'overridePWLength': 1
			})
		except Exception as exc:
			fail(f'{helpdesk_user2} user can not reset password of {unprotected_user}: {exc}')
		else:
			print(f'OK: {helpdesk_user2} user set password of {unprotected_user} successfully')
finally:
	# Important: deactivate LDAP ACLs again
	utils.restart_slapd()

# vim: set ft=python ts=4 noexpandtab :
