#!/bin/bash

IP_FILE='/tmp/ipaddress'

[[ -f "${IP_FILE}" ]] && IP_OLD="$(< "${IP_FILE}" )"

IP_NEW="$(curl -s -4 http://icanhazip.com/)"

# work around to report IP to root server
ssh wiebelbach@lusiardi.de -i ~/.ssh/id_rsa_update_ip "echo $IP_NEW > IP"

if [[ "${IP_OLD}" != "${IP_NEW}" ]]; then
        echo "change from ${IP_OLD} to ${IP_NEW}"
        echo ${IP_NEW} > ${IP_FILE}
        for SCRIPT in `ls /usr/local/etc/ipchange.d/*.sh`
        do
                ${SCRIPT} ${IP_NEW}
        done
else
        echo "no update required (still ${IP_OLD})"
fi