tinystatus/tinystatus
Kage1 44ca8dc1f3 ${IPv} var interfering with timeout
The ${IPv} var for the ping and port commands were after the wait parameter causing ping and nc to fail due to an invalid parameter. Moved the var to the beginning of the var string like the curl test.
2021-03-29 19:42:29 -05:00

125 lines
4 KiB
Bash
Executable file

#!/usr/bin/env sh
title=tinystatus
timeout=10
tmp="$(mktemp -d)"
checkfile="${1:-checks.list}"
incidentsfile="${2:-incidents.list}"
useragent="User-Agent: Mozilla/5.0 (X11; Linux x86_64; Debian) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.88 Safari/537.36"
command_exists(){
if ! command -v "${1}" >/dev/null 2>&1; then
echo >&2 "Error: ${1} missing. Please install it"
exit 1
fi
}
get_element(){
echo "${2}" | awk -v col="${1}" -F'|' '{gsub(/^[ \t]+|[ \t]+$/, "", $col); print $col}'
}
check(){
ctype="${1}"
host="${2}"
name="${3}"
expectedcode="${4}"
IPv="$(echo "${ctype}" | grep -o '[0-9]$')"
case "${ctype}" in
http*)
statuscode="$(curl -${IPv}sSkLo /dev/null -H "${useragent}" -m "${timeout}" -w "%{http_code}" "${host}" 2> "${tmp}/ko/${name}.error")";;
ping*)
ping -${IPv}W "${timeout}" -c 1 "${host}" >/dev/null 2>&1
statuscode=$?
[ "${statuscode}" -ne "${expectedcode}" ] && echo 'Host unreachable' > "${tmp}/ko/${name}.error";;
port*)
error="$(nc -${IPv}w "${timeout}" -zv ${host} 2>&1)"
statuscode=$?
[ "${statuscode}" -ne "${expectedcode}" ] && echo "${error}" > "${tmp}/ko/${name}.error";;
esac
# verity status and write files
if [ "${statuscode}" -eq "${expectedcode}" ]; then
echo "Status code: ${statuscode}" > "${tmp}/ok/${name}.status"
else
echo "Status code: ${statuscode}" > "${tmp}/ko/${name}.status"
fi
if [ -s "${tmp}/ko/${name}.error" ]; then
sed "${tmp}/ko/${name}.error" \
-e 's,curl: ([0-9]*) ,,' \
-e 's,.*) failed: ,,' > "${tmp}/ko/${name}.status"
fi
}
command_exists 'curl'
command_exists 'nc'
mkdir -p "${tmp}/ok" "${tmp}/ko" || exit 1
while IFS="$(printf '\n')" read -r line; do
ctype="$(get_element 1 "${line}")"
code="$(get_element 2 "${line}")"
name="$(get_element 3 "${line}")"
host="$(get_element 4 "${line}")"
check "${ctype}" "${host}" "${name}" "${code}" &
done < "${checkfile}"
wait
cat << EOF
<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><title>${title}</title><style>
body { font-family: segoe ui,Roboto,Oxygen-Sans,Ubuntu,Cantarell,helvetica neue,Verdana,sans-serif; }
h1 { margin-top: 30px; }
ul { padding: 0px; }
li { list-style: none; margin-bottom: 2px; padding: 5px; border-bottom: 1px solid #ddd; }
.container { max-width: 600px; width: 100%; margin: 15px auto; }
.panel { text-align: center; padding: 10px; border: 0px; border-radius: 5px; }
.failed-bg { color: white; background-color: #E25D6A; }
.success-bg { color: white; background-color: #52B86A; }
.failed { color: #E25D6A; }
.success { color: #52B86A; }
.small { font-size: 80%; }
.status { float: right; }
</style></head>
<body>
<div class='container'>
<h1>Global status</h1>
EOF
outagenb="$(find "${tmp}/ko" -mindepth 1 | grep -c 'status$')"
if [ "${outagenb}" -ne 0 ]; then
echo "<ul><li class='panel failed-bg'>${outagenb} Outage(s)</li></ul>"
else
echo "<ul><li class='panel success-bg'>All Systems Operational</li></ul>"
fi
cat << EOF
<h1>Services</h1>
<ul>
EOF
for file in "${tmp}/ko/"*.status; do
[ -e "${file}" ] || continue
name="$(basename "${file}" | sed 's,.status$,,')"
status="$(cat "${file}")"
echo "<li>${name} <span class='small failed'>(${status})</span><span class='status failed'>Disrupted</span></li>"
done
for file in "${tmp}/ok/"*.status; do
[ -e "${file}" ] || continue
name="$(basename "${file}" | sed 's,.status$,,')"
echo "<li>${name} <span class='status success'>Operational</span></li>"
done
cat << EOF
</ul>
<p class=small> Last check: $(date +"%Y/%m/%d %H:%M:%S")</p>
EOF
if [ -f "${incidentsfile}" ]; then
echo '<h1>Incidents</h1>'
if [ -s "${incidentsfile}" ]; then
sed 's|^\(.*\)$|<p>\1</p>|' "${incidentsfile}"
else
echo '<p>No incident reported yet ;)</p>'
fi
fi
cat <<EOF
</div>
</body></html>
EOF
rm -r "${tmp}" 2>/dev/null