#!/bin/bash
# Install the generated key and certificates on the host running strongSwan
# as a systemd service and managed via the swanctl command line tool.
#
# Copyright (C) 2023 Andreas Steffen
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
set -e

##############################################################################
# Set some local paths
#

# Path to the strongSwan swanctl command
SWANCTL="@SBINDIR@/swanctl"

# Path to the strongSwan swanctl directory
SWANCTLDIR="@SYSCONFDIR@/swanctl"

##############################################################################
# Change to the certificate directory
#
cd $CERTDIR

##############################################################################
# Install the private key
#
if [ $KEYTYPE == "RSA" ]
then
  cp $HOSTKEY ${SWANCTLDIR}/rsa
elif [ $KEYTYPE == "ECDSA" ]
then
  cp $HOSTKEY ${SWANCTLDIR}/ecdsa
else
  cp $HOSTKEY ${SWANCTLDIR}/private
fi

##############################################################################
# Install the certificate
#
cp $HOSTCERT ${SWANCTLDIR}/x509

##############################################################################
# Install the CA certificates
#
cp $ROOTCA $SUBCA ${SWANCTLDIR}/x509ca
if [ -s old/$ROOTCA ]
then
  cp old/$ROOTCA ${SWANCTLDIR}/x509ca/$OLDROOTCA
fi
if [ -s old/$SUBCA ]
then
  cp old/$SUBCA ${SWANCTLDIR}/x509ca/$OLDSUBCA
fi
if [ -s older/$ROOTCA ]
then
  cp older/$ROOTCA ${SWANCTLDIR}/x509ca/$OLDERROOTCA
fi
if [ -s older/$SUBCA ]
then
  cp older/$SUBCA ${SWANCTLDIR}/x509ca/$OLDERSUBCA
fi

##############################################################################
# Reload the strongswan systemd service if it is running
#
if /usr/bin/systemctl -q is-active strongswan.service
then
  $SWANCTL --load-creds --noprompt
  $SWANCTL --load-conns
fi
exit 0
