#!/bin/sh
#
# Univention Setup
#  windows domain change script
#
# Copyright 2004-2014 Univention GmbH
#
# http://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
# <http://www.gnu.org/licenses/>.

. /usr/lib/univention-system-setup/scripts/setup_utils.sh

info_header "$0" "$(gettext "Setting windows domain")"

is_variable_set "windows/domain"

if [ $? = 0 ]; then
	exit 0
fi

# windows domain can only be changed via system-setup scripts on a basesystem
eval "$(univention-config-registry shell)"
if [ "$server_role" != "basesystem" ]; then
	exit 1
fi

if [ "$check_ldap_access" = "1" ]; then
	exit 0
fi

ldap_available=1

if [ "$(cat /var/run/univention-system-setup.ldap)" = "no-ldap" ]; then
	ldap_available=0
fi

new_windows_domain=`get_profile_var "windows/domain"`

if [ -z "$new_windows_domain" ]; then
	univention-config-registry unset windows/domain
	exit 0
fi

old_windows_domain=$(univention-config-registry get windows/domain)
if [ -d "/var/lib/univention-system-setup/windowsdomain.pre" ]; then
	run-parts /var/lib/univention-system-setup/windowsdomain.pre --arg=$old_windows_domain --arg=$new_windows_domain
fi

service_stop samba

if [ "$ldap_available" = 1 ]; then
	if [ "$server_role" = "domaincontroller_master" ]; then
		univention-directory-manager settings/sambadomain list --filter sambaDomainName="$windows_domain" | grep "^DN:" | sed -e 's|DN: ||' | while read dn; do
			univention-directory-manager settings/sambadomain modify --dn "$dn" --set name="$new_windows_domain"
		done
	fi
fi

univention-config-registry set windows/domain="$new_windows_domain"

service_start samba
sleep 1
service_start samba

if [ -d "/var/lib/univention-system-setup/windowsdomain.post" ]; then
	run-parts /var/lib/univention-system-setup/windowsdomain.post --arg=$old_windows_domain --arg=$new_windows_domain
fi

exit 0
