216 lines
6.7 KiB
Bash
Executable File
216 lines
6.7 KiB
Bash
Executable File
#!/bin/ksh
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#
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export PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin
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CHECKFILE="checks.csv"
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HEADER="Global Status"
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HTMLDIR="/var/www/htdocs/default"
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HTMLFILE="index.html"
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INCIDENTSFILE="incidents.txt"
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PASTINCIDENTSFILE="pastincidents.txt"
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PUSHOVER="/home/mischa/bin/pushover.pl"
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PUSHOVER_CONF="/home/mischa/_pushover.conf"
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PUSHOVER_STATUS="status"
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RECIPIENT="alerts@high5.nl"
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REFRESH=60
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SENDER="tinystatus@high5.nl"
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TIMEOUT=10
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TITLE="Tiny Status"
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USERAGENT="User-Agent: Mozilla/5.0 (OpenBSD; Intel OpenBSD 7.4; rv:109.0) Gecko/20100101 Firefox/113.0"
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WORKDIR=/home/mischa/tinystatus
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usage() {
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echo "usage: ${0##*/} [-c checksfile] [-i incidentsfile] [-p pastincidentsfile] [-o htmlfile]" 1>&2
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exit
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}
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get_element() {
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echo "${2}" | awk -v col="${1}" -F',' '{gsub(/^[ \t]+|[ \t]+$/, "", $col); print $col}'
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}
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notify() {
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name="${1}"
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status="${2}"
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priority="${3}"
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if [ ${priority} == "KO" ]; then
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echo "${status}." | mail -r "${TITLE} <${SENDER}>" -s "${name} DOWN" ${RECIPIENT}
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${PUSHOVER} -c ${PUSHOVER_CONF} -t "${TITLE}" -m "${name} DOWN ${status}." -p 1 >/dev/null 2>&1
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touch "${PUSHOVER_STATUS}/${name}"
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fi
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if [ ${priority} == "OK" ]; then
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_seconds=$(expr $(date +%s) - $(stat -r ${PUSHOVER_STATUS}/${name} | awk '{print $11}'))
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_downtime=$(date -r${_seconds} -u +%H:%M:%S)
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echo "${status} - down for ${_downtime}" | mail -r "${TITLE} <${SENDER}>" -s "${name} OK" ${RECIPIENT}
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${PUSHOVER} -c ${PUSHOVER_CONF} -t "${TITLE}" -m "${name} OK ${status} - down for ${_downtime}" >/dev/null 2>&1
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rm -rf "${PUSHOVER_STATUS}/${name}"
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fi
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}
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check(){
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ctype="${1}"
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host="${2}"
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name="${3}"
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expectedcode="${4}"
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IPv="${ctype#(http|ping|port)}"
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case "${ctype}" in
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http*)
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statuscode="$(curl -${IPv}sSkLo /dev/null -H "${USERAGENT}" -m "${TIMEOUT}" -w "%{http_code}" "${host}" 2> "${tmp}/ko/${name}.error")"
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if [ "${statuscode}" -ne "${expectedcode}" ]; then
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if [ -s "${tmp}/ko/${name}.error" ]; then
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sed -e 's,curl: ([0-9]*) ,,' "${tmp}/ko/${name}.error" > "${tmp}/ko/${name}.status"
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else
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echo "Status code: ${statuscode}" > "${tmp}/ko/${name}.status"
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fi
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else
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echo "Status code: ${statuscode}" > "${tmp}/ok/${name}.status"
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fi
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;;
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ping*)
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ping -${IPv}w "${TIMEOUT}" -c 1 "${host}" >/dev/null 2>&1
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statuscode=$?
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if [ "${statuscode}" -ne "${expectedcode}" ]; then
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echo "Host unreachable" > "${tmp}/ko/${name}.status"
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else
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echo "Host reachable" > "${tmp}/ok/${name}.status"
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fi
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;;
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port*)
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error="$(nc -${IPv}w "${TIMEOUT}" -zv ${host} 2>&1)"
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statuscode=$?
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if [ "${statuscode}" -ne "${expectedcode}" ]; then
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echo "Connection refused" > "${tmp}/ko/${name}.status"
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else
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echo "Connection succeeded" > "${tmp}/ok/${name}.status"
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fi
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;;
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maint*)
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echo "Maintenance" > "${tmp}/maint/${name}.status"
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;;
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esac
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}
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while getopts c:i:o:h arg; do
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case ${arg} in
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c) CHECKFILE=${OPTARG};;
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i) INCIDENTSFILE=${OPTARG};;
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p) PASTINCIDENTSFILE=${OPTARG};;
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o) HTMLFILE=${OPTARG};;
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h) usage;;
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*) usage;;
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esac
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done
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cd ${WORKDIR}
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if [ ! -e "${CHECKFILE}" ]; then
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echo "Checkfile ${WORKDIR}/${CHECKFILE} doesn't exist."
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exit
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fi
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tmp="$(mktemp -d)"
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mkdir -p "${tmp}/ok" "${tmp}/ko" "${tmp}/maint" || exit 1
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_htmlfile="${tmp}/${HTMLFILE}"
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while IFS="$(printf '\n')" read -r line; do
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ctype="$(get_element 1 "${line}")"
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code="$(get_element 2 "${line}")"
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name="$(get_element 3 "${line}")"
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host="$(get_element 4 "${line}")"
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check "${ctype}" "${host}" "${name}" "${code}" &
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done < "${CHECKFILE}"
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wait
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cat << EOF >> ${_htmlfile}
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta http-equiv="refresh" content="${REFRESH}">
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<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
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<title>${TITLE}</title>
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<style>
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body { font-family: segoe ui,Roboto,Oxygen-Sans,Ubuntu,Cantarell,helvetica neue,Verdana,sans-serif; }
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h1 { margin-top: 30px; }
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ul { padding: 0px; }
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li { list-style: none; margin-bottom: 2px; padding: 5px; border-bottom: 1px solid #ddd; }
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.container { max-width: 600px; width: 100%; margin: 15px auto; }
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.panel { text-align: center; padding: 10px; border: 0px; border-radius: 5px; }
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.failed-bg { color: white; background-color: #E25D6A; }
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.success-bg { color: white; background-color: #52B86A; }
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.maint-bg { color: white; background-color: #5DADE2; }
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.failed { color: #E25D6A; }
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.success { color: #52B86A; }
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.maint { color: #5DADE2; }
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.small { font-size: 80%; }
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.status { float: right; }
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</style>
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</head>
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<body>
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<div class='container'>
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<h1>${HEADER}</h1>
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EOF
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_outage_count="$(find "${tmp}/ko" -mindepth 1 | grep -c 'status$')"
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_maint_count="$(find "${tmp}/maint" -mindepth 1 | grep -c 'status$')"
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if [ "${_outage_count}" -ne 0 ]; then
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echo "<ul><li class='panel failed-bg'>${_outage_count} Outage(s)</li></ul>" >> ${_htmlfile}
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fi
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if [ "${_maint_count}" -ne 0 ]; then
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echo "<ul><li class='panel maint-bg'>${_maint_count} Maintenance</li></ul>" >> ${_htmlfile}
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fi
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if [[ "${_outage_count}" -eq 0 && "${_maint_count}" -eq 0 ]]; then
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echo "<ul><li class='panel success-bg'>All Systems Operational</li></ul>" >> ${_htmlfile}
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fi
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if [ -f "${INCIDENTSFILE}" ]; then
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echo '<h1>Incidents</h1>' >> ${_htmlfile}
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if [ -s "${INCIDENTSFILE}" ]; then
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sed 's|^\(.*\)$|<p>\1</p>|' "${INCIDENTSFILE}" >> ${_htmlfile}
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else
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echo '<p>No incident reported yet ;)</p>' >> ${_htmlfile}
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fi
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fi
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cat << EOF >> ${_htmlfile}
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<h1>Services</h1>
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<ul>
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EOF
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ls ${tmp}/ko/*.status 2>/dev/null | sort -V | while read file; do
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[ -e "${file}" ] || continue
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name="$(basename "${file%.status}")"
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status="$(cat "${file}")"
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echo "<li>${name} <span class='small failed'>(${status})</span><span class='status failed'>Disrupted</span></li>" >> ${_htmlfile}
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if [ ! -e "${PUSHOVER_STATUS}/${name}" ]; then
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notify "${name}" "${status}" "KO"
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fi
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done
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ls ${tmp}/maint/*.status 2>/dev/null | sort -V | while read file; do
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[ -e "${file}" ] || continue
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name="$(basename "${file%.status}")"
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echo "<li>${name} <span class='status maint'>Maintenance</span></li>" >> ${_htmlfile}
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done
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ls ${tmp}/ok/*.status 2>/dev/null | sort -V | while read file; do
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[ -e "${file}" ] || continue
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name="$(basename "${file%.status}")"
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status="$(cat "${file}")"
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echo "<li>${name} <span class='status success'>Operational</span></li>" >> ${_htmlfile}
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if [ -e "${PUSHOVER_STATUS}/${name}" ]; then
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notify "${name}" "${status}" "OK"
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fi
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done
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cat << EOF >> ${_htmlfile}
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</ul>
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<p class=small> Last check: $(date +%FT%T%z) <a href="https://git.high5.nl/tinystatus/">Tinystatus</a> loosely based on <a href="https://github.com/bderenzo/tinystatus">Tinystatus</a></p>
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EOF
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if [ -s "${PASTINCIDENTSFILE}" ]; then
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echo '<h1>Past Incidents</h1>' >> ${_htmlfile}
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sed 's|^\(.*\)$|<p>\1</p>|' "${PASTINCIDENTSFILE}" >> ${_htmlfile}
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fi
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cat << EOF >> ${_htmlfile}
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</div>
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</body>
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</html>
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EOF
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cp ${_htmlfile} ${HTMLDIR}/${HTMLFILE}
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rm -r "${tmp}" 2>/dev/null
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