#!/bin/sh -e
#
# 2021 Joachim Desroches (joachim.desroches@epfl.ch)
#
# This file is part of cdist.
#
# cdist is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cdist is distributed 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
#


os=$(cat "${__global:?}/explorer/os")

case "$os" in
'alpine')
	:
;;
*)
	cat <<- EOF >&2
	__opendkim_genkey currently only supports Alpine Linux. Please
	contribute an implementation for $os if you can.
	EOF
;;
esac

SELECTOR="$(cat "${__object:?}/parameter/selector")"
DOMAIN="$(cat "${__object:?}/parameter/domain")"

DIRECTORY="/var/db/dkim/"
if [ -f "${__object:?}/parameter/directory" ];
then
	DIRECTORY="$(cat "${__object:?}/parameter/directory")"
fi

SIGKEY="${DOMAIN:?}"
if [ -f "${__object:?}/parameter/sigkey" ];
then
	SIGKEY="$(cat "${__object:?}/parameter/sigkey")"
fi

__package opendkim-utils

require='__package/opendkim-utils' \
	__file /etc/opendkim/KeyTable
require='__package/opendkim-utils' \
	__file /etc/opendkim/SigningTable

require='__file/etc/opendkim/KeyTable' \
	__line "line-key-${__object_id:?}" \
		--file /etc/opendkim/KeyTable \
		--line "${SELECTOR:?}._domainkey.${DOMAIN:?} ${DOMAIN:?}:${SELECTOR:?}:${DIRECTORY:?}${SELECTOR:?}.private"

require='__file/etc/opendkim/SigningTable' \
	__line "line-sig-${__object_id:?}" \
		--file /etc/opendkim/SigningTable \
		--line "${SIGKEY:?} ${SELECTOR:?}._domainkey.${DOMAIN:?}"