#!/bin/sh
#
# Copyright 2011-2021 Univention GmbH
#
# https://www.univention.de/
#
# All rights reserved.
#
# The source code of this program is made available
# under the terms of the GNU Affero General Public License version 3
# (GNU AGPL V3) as published by the Free Software Foundation.
#
# Binary versions of this program provided by Univention to you as
# well as other copyrighted, protected or trademarked materials like
# Logos, graphics, fonts, specific documentations and configurations,
# cryptographic keys etc. are subject to a license agreement between
# you and Univention and not subject to the GNU AGPL V3.
#
# In the case you use this program under the terms of the GNU AGPL V3,
# the program is provided in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License with the Debian GNU/Linux or Univention distribution in file
# /usr/share/common-licenses/AGPL-3; if not, see
# <https://www.gnu.org/licenses/>.

if [ -n "$1" ] ; then
	INTERVAL=$1
else
	INTERVAL=7
fi
if [ -n "$2" ] ; then
	BASE="-b $2"
fi

eval "$(univention-config-registry shell ldap/hostdn)"

now=$(date +%Y%m%d | tr -d '\n')
expiredate=$(date -d "$INTERVAL days" +%Y%m%d | tr -d '\n')

ldapsearch -x -ZZ -D "$ldap_hostdn" -y /etc/machine.secret -LLL $BASE '(&(objectClass=posixAccount)(krb5PasswordEnd=*))' dn krb5PasswordEnd | ldapsearch-wrapper | egrep "^(dn|krb5PasswordEnd):" | while read dn ; do
	read datum
	day=$(echo $datum | cut -b18-25)
	if [ $now -le $day -a $day -le $expiredate ] ; then
		echo -n "$day "
		echo "$dn" | awk '{print $2}'
	fi
done
