#!/bin/bash

### this scripts checks if the login page of a nextcloud instance is reacheable, and alerts ntfy in case it cannot receive a "200 OK" response from the webserver
# written by tech_at_hangar.org

HOSTS="https://cloud.EXAMPLE.ORG/index.php,https://cloud.CHANGE.ME/index.php,https://nuvol.EIXAMPLE.CAT/index.php"
topicurl=https://NTFY_SERVER_IP/cloud_alerts

for i in ${HOSTS//,/ }
do
        RESPONSE=$(wget --no-check-certificate "$i" 2>&1 | grep -wic "200 OK")
        if [ ${RESPONSE} != 1  ]; then
                curl -k --retry 3 \
                -d "Cloud $i not online" \
                -H "Title: Cloud $i has some problems" \
                -H "Priority: high" \
                -H "Tags: warning,boar" \
                $topicurl
        fi
done