Divers:tools:tinystatus.sh:start

source d'inspiration: https://github.com/bderenzo/tinystatus

J'ai modifié tinystatus de Bderenzo, en ajoutant l'indication du nombre de jours restant avant expiration du certificat, j'ai aussi rajouté une variable pour le rechargement périodique de la page.

fichier tinystatus.sh:

#!/usr/bin/env bash
# source https://github.com/bderenzo/tinystatus
# MIT licence: https://github.com/bderenzo/tinystatus/tree/master?tab=MIT-1-ov-file#readme
# Configuration variables
TITLE="Tinystatus"
HEADER="Global Status"
CHECKS_FILE="${1:-checks.csv}"
INCIDENTS_FILE="${2:-incidents.txt}"
OUTAGE_RC=false
TIMEOUT=10
USER_AGENT="User-Agent: Mozilla/5.0 (X11; Linux x86_64; Debian) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.88 Safari/537.36"
TMP_DIR="$(mktemp -d)"
TMP_DIR_DEBUG="/tmp/tinystatus-debug"
refresh_delay="60"
 
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(){
    check="${1}"
    host="${2}"
    name="${3}"
    expected_rc="${4}"
    id="${5}"
    today=$(date +%s)
 
    ipversion="$(echo "${check}" | grep -o '[46]$')"
    case "${check}" in
        http*)
            rc="$(curl -${ipversion}sSkLo /dev/null -H "${USER_AGENT}" -m "${TIMEOUT}" -w "%{http_code}" "${host}" 2> "${TMP_DIR}/${id}.ko.info")"
            cert="$(curl ${host} -vI 2>&1 | grep "expire date"| tr -s " "| cut -d" " -f4-8)"
            date_exp="$(curl ${host} -vI 2>&1 | grep "expire date")"
            date_cert=$(date -d "${cert}" +"%s")
            delay_cert0=$((date_cert - today))
            delay_cert=$((delay_cert0 / 86400))
            echo "$delay_cert" > "${TMP_DIR}/${id}.ok.cert"
            if [ -s "${TMP_DIR}/${id}.ko.info" ]; then
                sed -e 's,curl: ([0-9]*) ,,' -i "${TMP_DIR}/${id}.ko.info"
            else
                echo "Status code: ${rc}, expected: ${expected_rc}" > "${TMP_DIR}/${id}.ko.info"
            fi;;
        ping*)
            ping -${ipversion}W "${TIMEOUT}" -c 1 "${host}" >/dev/null 2>&1
            rc=$?
            [ "${rc}" -ne "${expected_rc}" ] && echo 'Host unreachable' > "${TMP_DIR}/${id}.ko.info";;
        port*)
            error="$(nc -${ipversion}w "${TIMEOUT}" -zv ${host} 2>&1)"
            rc=$?
            [ "${rc}" -ne "${expected_rc}" ] && echo "${error}" | sed -e 's,nc: ,,' > "${TMP_DIR}/${id}.ko.info";;
#        cert*)
#            rc="$(curl ${host} -vI 2>&1 | grep "expire date" > "${TMP_DIR}/${id}.cert")";;
    esac
 
#set -x
    # verity status and write files
    if [[ "${rc}" == "${expected_rc}" ]]; then
        echo "${name}" > "${TMP_DIR}/${id}.ok"
#            rc="$(curl ${host} -vI 2>&1 | grep "expire date" >> "${TMP_DIR}/${id}.ok")"
    else
        echo "${name}" > "${TMP_DIR}/${id}.ko"
#            rc="$(curl ${host} -vI 2>&1 | grep "expire date" >> "${TMP_DIR}/${id}.ko")"
    fi
#set +x
}
 
# Verify requirements
command_exists 'curl'
command_exists 'nc'
command_exists 'ping'
command_exists 'grep'
#mkdir -p "${TMP_DIR}" || exit 1
 
# Execute checks
id=0
while IFS="$(printf '\n')" read -r line; do
    check="$(get_element 1 "${line}")"
    code="$(get_element 2 "${line}")"
    name="$(get_element 3 "${line}")"
    host="$(get_element 4 "${line}")"
    check "${check}" "${host}" "${name}" "${code}" "${id}" &
    : $((id++))
done < "${CHECKS_FILE}"
wait
OUTAGES_COUNT="$(ls "${TMP_DIR}/"*.ko | wc -l)"
#OUTAGES_COUNT="0"
 
# Generate HTML
cat << EOF
<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" http-equiv="refresh" content="${refresh_delay}" content="width=device-width, initial-scale=1, shrink-to-fit=no"><title>${TITLE}</title><style>
body { font-family: segoe ui,Roboto,Oxygen-Sans,Ubuntu,Cantarell,helvetica neue,Verdana,sans-serif; }
h1 { margin-top: 3em; }
ul { padding: 0px; }
li { list-style: none; margin-bottom: 2px; padding: 5px; border-bottom: 1px solid #ddd;  }
.container { max-width: 80em; 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>${HEADER}</h1>
EOF
if [ "${OUTAGES_COUNT}" -ne 0 ]; then
    echo "<ul><li class='panel failed-bg'>${OUTAGES_COUNT} Outage(s)</li></ul>"
else
    echo "<ul><li class='panel success-bg'>All Systems Operational</li></ul>"
fi
cat << EOF
<h1>Services</h1>
(updated every ${refresh_delay}s)
<ul>
EOF
for file in "${TMP_DIR}/"*.ko; do
    [ -e "${file}" ] || continue
    echo "<li>$(cat "${file}") <span class='small failed'>($(cat "${file}.info"))</span><span class='status failed'></span></li>"
done
 
for file in "${TMP_DIR}/"*.ok; do
    [ -e "${file}" ] || continue
      echo "<li><a href="$(cat "${file}")">$(cat "${file}")</a> <span class='status success'>certificat expire in $(cat "${file}.cert") days</span></li>"
done
 
 
cat << EOF
</ul>
<p class=small> Last check: $(date +%FT_%T)</p>
EOF
if [ -f "${INCIDENTS_FILE}" ]; then
    echo '<h1>Incidents</h1>'
    if [ -s "${INCIDENTS_FILE}" ]; then
        sed 's|^\(.*\)$|<p>\1</p>|' "${INCIDENTS_FILE}"
    else
        echo '<p>No incident reported yet ;)</p>'
    fi
fi
cat <<EOF
</div>
</body></html>
EOF
 
# Cleanup and exit
rm -r "${TMP_DIR}" 2>/dev/null
if "${OUTAGE_RC}"; then
    exit "${OUTAGES_COUNT}"
fi

exemple de fichier check.csv:

http4,  200,  https://err404.numericore.com (IPv4),             https://err404.numericore.com
http6,  200,  https://err404.numericore.com (IPv6),             https://err404.numericore.com
http4,  200,  https://wow.err404.numericore.com (IPv4),         https://wow.err404.numericore.com
http6,  200,  https://wow.err404.numericore.com (IPv6),         https://wow.err404.numericore.com