151 lines
3 KiB
Bash
Executable file
151 lines
3 KiB
Bash
Executable file
#!/bin/sh
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# Small script to survey CRL
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# GPL v3+
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# Default values
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# Warning : 7 days - 10 years
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# (juste because more than 10 years is really far stretched and might be a manipulation error)
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RANGE_WARNING="7:3650"
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# Critical : 3 days
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RANGE_CRITICAL="3:"
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# Output
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OUTPUT_EXIT_STATUS=0
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OUTPUT_DETAIL_WARNING=""
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OUTPUT_DETAIL_CRITICAL=""
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#OUTPUT_PERFDATA=""
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PROGPATH=$( echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,' )
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REVISION="0.2"
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# Stop at the first non-catched error
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set -e
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# Include check_range()
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. $PROGPATH/utils.sh
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#
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# Help function
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#
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usage() {
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cat <<EOF
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Usage :
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$0 [-w warning_range] [-c critical_range] -f file.crl [[-w...] -f file.crl ] ...
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Thresholds in days.
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Note: Since the file is checked against the lastest ranges given, order
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of the arguments are important.
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Default values:
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warning_range: $RANGE_WARNING
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critical_range: $RANGE_CRITICAL
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EOF
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}
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check_range_syntax() {
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check_range 0 "$1" >/dev/null 2>&1
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if [ "$?" -eq "2" ]; then
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return 1
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fi
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return 0
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}
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# Some early checks
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if ! which openssl >/dev/null 2>&1 ; then
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echo "UNKNOWN 'openssl' not found."
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exit $STATE_UNKNOWN
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fi
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#
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# Parameters management
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#
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while getopts hw:c:f: OPT; do
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case "$OPT" in
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'h')
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usage
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exit
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;;
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'w')
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if check_range_syntax "$OPTARG" >/dev/null; then
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RANGE_WARNING="$OPTARG"
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else
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echo "UNKNOWN: invalid range : $OPTARG"
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exit $STATE_UNKNOWN
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fi
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;;
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'c')
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if check_range_syntax "$OPTARG" >/dev/null; then
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RANGE_CRITICAL="$OPTARG"
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else
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echo "UNKNOWN: invalid range : $OPTARG"
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exit $STATE_UNKNOWN
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fi
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;;
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'f')
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# I'm not very proud of this one : aesthetically speaking, treatments
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# should not be done during params management :)
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CRL_FILE="$OPTARG"
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if [ ! -f "$CRL_FILE" ]; then
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echo "UNKNOWN: inexistent file : $CRL_FILE"
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exit $STATE_UNKNOWN
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fi
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# Extract time left, in seconds
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EXPIRATION_DATE="$( openssl crl -noout -text -in "$CRL_FILE" | sed -n "s/^[[:space:]]\+Next Update: \(.*\)$/\1/p" )"
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if [ -z "$EXPIRATION_DATE" ]; then
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echo "UNKNOWN: couldn't get expiration date."
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exit $STATE_UNKNOWN
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fi
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TIME_LEFT=$(( ( $( date --date="$EXPIRATION_DATE" +%s ) - $( date +%s ) ) / 86400 ))
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# Check time left against range
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if check_range "$TIME_LEFT" "$RANGE_CRITICAL"; then
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OUTPUT_EXIT_STATUS=$STATE_CRITICAL
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OUTPUT_DETAIL_CRITICAL="$OUTPUT_DETAIL_CRITICAL $CRL_FILE ($TIME_LEFT days left)"
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elif check_range "$TIME_LEFT" "$RANGE_WARNING"; then
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if [ "$OUTPUT_EXIT_STATUS" -eq 0 ]; then
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OUTPUT_EXIT_STATUS=$STATE_WARNING
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fi
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OUTPUT_DETAIL_WARNING="$OUTPUT_DETAIL_WARNING $CRL_FILE ($TIME_LEFT days left)"
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fi
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;;
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\?)
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usage
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exit 1
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;;
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esac
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done
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if [ -z "$CRL_FILE" ]; then
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echo "UNKNOWN: no file tested."
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exit $STATE_UNKNOWN
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fi
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case "$OUTPUT_EXIT_STATUS" in
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'0')
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printf "OK"
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;;
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'1')
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printf "WARNING %s" "$OUTPUT_DETAIL_WARNING"
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;;
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'2')
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printf "CRITICAL %s" "$OUTPUT_DETAIL_CRITICAL"
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;;
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*)
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printf "UNKNOWN"
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;;
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esac
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# Perfdata
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#printf "|%s\n" "$OUTPUT_PERFDATA"
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printf "\n"
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# Exit with return status
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exit $OUTPUT_EXIT_STATUS
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