#!/bin/sh
##
# rs-add-user
# Copyright (C) 2013 by Janek Bevendorff
# Website: http://www.refining-linux.org/
# 
# Set up a backup user
##

if [ "$1" == "" ] || [ "$2" == "" ]; then
	echo "Usage: $(basename $0) <remote host> <remote username> [<ssh public key file>]"
	exit
fi

. /usr/local/etc/rs-backup/server-config

remote_hostname="$1"
remote_username="$2"
ssh_key_file="$3"
local_username="${remote_hostname}-${remote_username}"

useradd -G backup -b "${BACKUP_ROOT}" -m -k /etc/rs-skel -p '*' -s /bin/sh "${local_username}"
rs-update-passwd

# Generate config files from templates
USERNAME="${local_username}"
GROUPNAME="${local_username}"
HOME_DIR="${BACKUP_ROOT}/${local_username}"

rsync_conf="$(cat /usr/local/etc/rs-backup/rsync.conf.template)"
rsnapshot_conf="$(cat /usr/local/etc/rs-backup/rsnapshot.conf.template)"

rsync_conf=$(eval "cat << EOF
${rsync_conf}
EOF")

rsnapshot_conf=$(eval "cat << EOF
${rsnapshot_conf}
EOF")

echo "${rsync_conf}" > "${HOME_DIR}/rsync.conf"
echo "${rsnapshot_conf}" > "${HOME_DIR}/rsnapshot.conf"

# Protect config files
chown root:root "${HOME_DIR}/rsync.conf"
chmod 0644 "${HOME_DIR}/rsync.conf"
chown root:root "${HOME_DIR}/rsnapshot.conf"
chmod 0644 "${HOME_DIR}/rsnapshot.conf"

# If SSH key file has been specified
if [ "${ssh_key_file}" != "" ]; then
	rs-add-ssh-key "${remote_hostname}" "${remote_username}" "${ssh_key_file}"
fi