#!/bin/bash

# You must either have a suitable ~/.my.cnf containing a user / pass
# for your mysql / mariadb database, OR you must uncomment the next line
# (which is a security risk; don't do it!) and adjust accordingly.

#CREDENTIALS="-uUSERNAME -pPASSWORD"

FQDN=$1
TOKEN=$2

# If your database name is not powerdns, change it here.
DB="powerdns"

DOMAIN=${FQDN}

# Iterate over the database, checking for a match. Keep stripping
# subdomains off 1 by 1 until we find one, or exit with an error.
while [ -z ${DOMAIN_ID} ]; do
	DOMAIN_ID=`mysql -ss ${CREDENTIALS} -e "SELECT id FROM ${DB}.domains WHERE name='${DOMAIN}'"`
	if [ -z ${DOMAIN_ID} ]; then
		DOMAIN=`echo ${DOMAIN}|cut -d. -f1 --complement`
	fi
	if [[ ${DOMAIN} != *"."* ]]; then
		echo "Cannot find matching domain record! ABORT!"
		exit 1
	fi
done

echo "Domain ID: ${DOMAIN_ID} | FQDN: ${FQDN} | Domain: ${DOMAIN}"

mysql -ss ${CREDENTIALS} -e "INSERT INTO ${DB}.records \
 (domain_id, name, content, type,ttl,prio) VALUES \
 (${DOMAIN_ID},'_acme-challenge.${FQDN}','${TOKEN}','TXT',120,NULL);"