#!/usr/bin/python3
#
# Univention update uniqueMember
#
# SPDX-FileCopyrightText: 2008-2025 Univention GmbH
# SPDX-License-Identifier: AGPL-3.0-only


from sys import exit, stderr

from ldap import MOD_REPLACE

import univention.config_registry
import univention.uldap


def main() -> int:
    ucr = univention.config_registry.ConfigRegistry()
    ucr.load()

    if ucr.get("server/role", "dummy") not in {"domaincontroller_master", "domaincontroller_backup", "domaincontroller_slave"}:
        return 0

    # ldap connection
    try:
        lo = univention.uldap.getRootDnConnection()
    except Exception as ex:
        print("failed to get ldap connection: %s" % (ex,), file=stderr)
        return 1

    # search groups and del/add uniqueMember
    filterstr = "(&(objectClass=posixGroup)(uniqueMember=*))"
    results = lo.search(attr=['uniqueMember'], filter=filterstr)
    for dn, attrs in results:
        uniqueMember = attrs.get('uniqueMember', [])
        if uniqueMember:
            try:
                # update groups
                ml = [
                    (MOD_REPLACE, 'uniqueMember', uniqueMember),
                ]
                print(f'modify {dn}')
                lo.modify_s(dn, ml)
            except Exception as e:
                print("E: modifying %s failed error with %s" % (dn, e), file=stderr)
                print("   please check the membership of this group", file=stderr)
                return 1

    return 0


if __name__ == '__main__':
    exit(main())
