#!/bin/bash # nagios-check-tor-authority-cert - check certificate expiry time # A nagios check for Tor v3 directory authorities: # - Checks the current certificate expiry time # # Usage: nagios-check-tor-authority-cert # e.g.: nagios-check-tor-authority-cert A9AC67E64B200BBF2FA26DF194AC0469E2A948C6 # Copyright (c) 2008 Peter Palfrader # # Permission is hereby granted, free of charge, to any person obtaining # a copy of this software and associated documentation files (the # "Software"), to deal in the Software without restriction, including # without limitation the rights to use, copy, modify, merge, publish, # distribute, sublicense, and/or sell copies of the Software, and to # permit persons to whom the Software is furnished to do so, subject to # the following conditions: # # The above copyright notice and this permission notice shall be # included in all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. set -e set -u if [ -z "${1:-}" ]; then echo "Usage: $0 " 2>&1 exit 3 fi identity="$1" DIRSERVERS="" DIRSERVERS="$DIRSERVERS 86.59.21.38:80" # tor26 DIRSERVERS="$DIRSERVERS 128.31.0.34:9031" # moria1 DIRSERVERS="$DIRSERVERS 216.224.124.114:9030" # ides DIRSERVERS="$DIRSERVERS 80.190.246.100:80" # gabelmoo #DIRSERVERS="$DIRSERVERS 140.247.60.64:80" # lefkada DIRSERVERS="$DIRSERVERS 194.109.206.212:80" # dizum DIRSERVERS="$DIRSERVERS 213.73.91.31:80" # dannenberg TMPFILE=$(mktemp) trap 'rm -f "$TMPFILE"' 0 for dirserver in $DIRSERVERS; do if wget -q -O "$TMPFILE" "http://$dirserver/tor/keys/fp/$identity" then break else cat /dev/null > "$TMPFILE" continue fi done if ! [ -s "$TMPFILE" ] ; then echo "UNKNOWN: Downloading certificate for $identity failed." exit 3 fi expirydate="$(awk '$1=="dir-key-expires" {printf "%s %s", $2, $3}' < "$TMPFILE")" expiryunix=$(TZ=UTC date -d "$expirydate" +%s) now=$(date +%s) if [ "$now" -ge "$expiryunix" ]; then echo "CRITICAL: Certificate expired $expirydate (authority $identity)." exit 2 elif [ "$(( now + 7*24*60*60 ))" -ge "$expiryunix" ]; then echo "CRITICAL: Certificate expires $expirydate (authority $identity)." exit 2 elif [ "$(( now + 30*24*60*60 ))" -ge "$expiryunix" ]; then echo "WARNING: Certificate expires $expirydate (authority $identity)." exit 1 else echo "OK: Certificate expires $expirydate (authority $identity)." exit 0 fi