#!/usr/bin/env bash

FULLDOMAIN=$1
TOKEN=$2
TMPFILE=$(mktemp /tmp/dns_add_joker.XXXXXXX)

USERNAME="youruser"
PASSWORD="yourpassword"

# Verify that required parameters are set
if [[ -z "${FULLDOMAIN}" ]]; then
  echo "DNS script requires full domain name as first parameter"
  exit 1
fi

if [[ -z "${TOKEN}" ]]; then
  echo "DNS script requires challenge token as second parameter"
  exit 1
fi

DOMAIN_ROOT=$(echo "${FULLDOMAIN}" | awk -F\. '{print $(NF-1) FS $NF}')

SID=$(curl --silent -X POST https://dmapi.joker.com/request/login \
	-H "Accept: application/json" -H "User-Agent: getssl/0.1" \
	-H "application/x-www-form-urlencoded" -d "username=${USERNAME}&password=${PASSWORD}" \
	-i -k 2>/dev/null | grep Auth-Sid | awk '{ print $2 }')

## put zone data in tempfile
curl --silent -X POST https://dmapi.joker.com/request/dns-zone-get \
	-H "Accept: application/json" -H "User-Agent: getssl/0.1" \
	-H "application/x-www-form-urlencoded" -d "domain=${DOMAIN_ROOT}&auth-sid=${SID}" | \
	tail -n +7 >"${TMPFILE}"

## add txt record
printf "_acme-challenge.%s. TXT 0  \"%s \" 300\n\n" "${FULLDOMAIN}" "${TOKEN}" >>"${TMPFILE}"

## generate encoded url data
URLDATA=$(cat "${TMPFILE}" | sed 's/ /%20/g' | sed 's/"/%22/g' | sed ':a;N;$!ba;s/\n/%0A/g')

## write new zonefile to joker
curl --silent --output /dev/null "https://dmapi.joker.com/request/dns-zone-put?domain=${DOMAIN_ROOT}&zone=${URLDATA}&auth-sid=${SID}" 2>&1

## remove tempfile
rm -f "${TMPFILE}"