nextcloudpi/bin/ncp/BACKUPS/nc-backup-auto.sh
Tobias Knöppler 4d6236345b
nc-backup-auto, nc-rsync-auto, nc-snapshot-sync: Add input validation for cron configuration
Signed-off-by: Tobias Knöppler <6317548+theCalcaholic@users.noreply.github.com>
2023-04-24 11:13:18 +02:00

90 lines
2.4 KiB
Bash

#!/bin/bash
# Nextcloud backups
#
# Copyleft 2017 by Ignacio Nunez Hernanz <nacho _a_t_ ownyourbits _d_o_t_ com>
# GPL licensed (see end of file) * Use at your own risk!
#
# More at https://ownyourbits.com/2017/02/13/nextcloud-ready-raspberry-pi-image/
#
tmpl_get_destination() {
(
. /usr/local/etc/library.sh
find_app_param nc-backup-auto DESTDIR
)
}
configure()
{
[[ $ACTIVE != "yes" ]] && {
rm -f /etc/cron.d/ncp-backup-auto
service cron restart
echo "automatic backups disabled"
return 0
}
cat > /usr/local/bin/ncp-backup-auto <<EOF
#!/bin/bash
source /usr/local/etc/library.sh
failed=
run_script()
{
if [ -x /usr/local/bin/ncp-backup-auto-\$1 ]
then
/usr/local/bin/ncp-backup-auto-\$1 || failed="\$failed\${failed:+, } \$1"
fi
}
run_script before
save_maintenance_mode
/usr/local/bin/ncp-backup "$DESTDIR" "$INCLUDEDATA" "$COMPRESS" "$BACKUPLIMIT" || failed="\$failed\${failed:+, } main"
restore_maintenance_mode
run_script after
if [[ -n "\$failed" ]]
then
notify_admin "Auto-backup failed" "The \$failed backup script(s) failed"
fi
EOF
chmod +x /usr/local/bin/ncp-backup-auto
[[ "$BACKUPHOUR" =~ ^([0-1]?[0-9]|2[0-4])$ ]] || {
echo "ERROR: 'BACKUPHOUR' must be a number between 0 and 24, was: '$BACKUPHOUR'"
return 1
}
[[ "$BACKUPDAYS" =~ ^[0-9]+$ ]] || {
echo "ERROR: 'BACKUPDAYS' must be a number, was: '$BACKUPDAYS'"
return 1
}
echo "0 ${BACKUPHOUR} */${BACKUPDAYS} * * root /usr/local/bin/ncp-backup-auto >> /var/log/ncp.log 2>&1" > /etc/cron.d/ncp-backup-auto
chmod 644 /etc/cron.d/ncp-backup-auto
service cron restart
(
. "${BINDIR}/SYSTEM/metrics.sh"
reload_metrics_config
)
echo "automatic backups enabled"
}
install() { :; }
# License
#
# This script 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 2 of the License, or
# (at your option) any later version.
#
# This script 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 this script; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place, Suite 330,
# Boston, MA 02111-1307 USA