Improved cert-expirations.sh for better readability of its ouput
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@ -1,28 +1,72 @@
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#!/bin/sh
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VERSION="22.04"
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SYSTEM=$(uname | tr '[:upper:]' '[:lower:]')
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carp=$(/sbin/ifconfig carp0 2>/dev/null | grep 'status' | cut -d' ' -f2)
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if [ "$carp" = "backup" ]; then
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exit 0
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if [ "${SYSTEM}" = "openbsd" ]; then
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carp=$(/sbin/ifconfig carp0 2>/dev/null | grep 'status' | cut -d' ' -f2)
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if [ "$carp" = "backup" ]; then
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exit 0
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fi
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fi
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echo "Warning : all times are in UTC !\n"
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cacert_path="/etc/openvpn/ssl/ca/cacert.pem"
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index_path="/etc/openvpn/ssl/ca/index.txt"
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somedays="3456000" # 40 days currently
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expired_certs=""
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expiring_soon_certs=""
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still_valid_certs=""
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echo "Warning : all times are in UTC !"
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echo ""
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echo "CA certificate:"
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openssl x509 -enddate -noout -in /etc/shellpki/cacert.pem \
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openssl x509 -enddate -noout -in ${cacert_path} \
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| cut -d '=' -f 2 \
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| sed -e "s/^\(.*\)\ \(20..\).*/- \2 \1/"
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echo ""
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echo "Client certificates:"
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cat /etc/shellpki/index.txt \
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| grep ^V \
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# Syntax "cmd | { while read line; do var="foo"; done echo $var }" needed, otherwise $var is empty at the end of while loop
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grep ^V ${index_path} \
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| awk -F "/" '{print $1,$5}' \
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| awk '{print $2,$5}' \
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| sed 's/CN=//' \
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| sed -E 's/([[:digit:]]{2})([[:digit:]]{2})([[:digit:]]{2})([[:digit:]]{2})([[:digit:]]{2})([[:digit:]]{2})Z (.*)/- 20\1 \2 \3 \4:\5:\6 \7/' \
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| awk '{if ($3 == "01") $3="Jan"; else if ($3 == "02") $3="Feb"; else if ($3 == "03") $3="Mar"; else if ($3 == "04") $3="Apr"; else if ($3 == "05") $3="May"; else if ($3 == "06") $3="Jun"; else if ($3 == "07") $3="Jul"; else if ($3 == "08") $3="Aug"; else if ($3 == "09") $3="Sep"; else if ($3 == "10") $3="Oct"; else if ($3 == "11") $3="Nov"; else if ($3 == "12") $3="Dec"; print $0;}' \
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| sort -n -k 2 -k 3M -k 4
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| sort -n -k 2 -k 3M -k 4 | {
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while read -r line; do
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# Predicting expirations - OpenBSD case (date is not the same than in Linux)
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if [ "${SYSTEM}" = "openbsd" ]; then
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# Already expired if expiration date is before now
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if [ "$(TZ=:Zulu date -jf "%Y %b %d %H:%M:%S" "$(echo "$line" | awk '{print $2,$3,$4,$5}')" +%s)" -le "$(date +%s)" ]; then
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expired_certs="${expired_certs}$line\n"
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# Expiring soon if expiration date is after now and before now + $somedays days
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elif [ "$(TZ=:Zulu date -jf "%Y %b %d %H:%M:%S" "$(echo "$line" | awk '{print $2,$3,$4,$5}')" +%s)" -gt "$(date +%s)" ] && [ "$(TZ=:Zulu date -jf "%Y %b %d %H:%M:%S" "$(echo "$line" | awk '{print $2,$3,$4,$5}')" +%s)" -lt "$(($(date +%s) + somedays))" ]; then
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expiring_soon_certs="${expiring_soon_certs}$line\n"
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# Still valid for a time if expiration date is after now + $somedays days
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elif [ "$(TZ=:Zulu date -jf "%Y %b %d %H:%M:%S" "$(echo "$line" | awk '{print $2,$3,$4,$5}')" +%s)" -ge "$(($(date +%s) + somedays))" ]; then
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still_valid_certs="${still_valid_certs}$line\n"
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fi
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# Non OpenBSD cases
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else
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# Already expired if expiration date is before now
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if [ "$(TZ=:Zulu date -d "$(echo "$line" | awk '{print $3,$4,$2,$5}')" +%s)" -le "$(date +%s)" ]; then
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expired_certs="${expired_certs}$line\n"
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# Expiring soon if expiration date is after now and before now + $somedays days
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elif [ "$(TZ=:Zulu date -d "$(echo "$line" | awk '{print $3,$4,$2,$5}')" +%s)" -gt "$(date +%s)" ] && [ "$(TZ=:Zulu date -d "$(echo "$line" | awk '{print $3,$4,$2,$5}')" +%s)" -lt "$(($(date +%s) + somedays))" ]; then
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expiring_soon_certs="${expiring_soon_certs}$line\n"
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# Still valid for a time if expiration date is after now + $somedays days
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elif [ "$(TZ=:Zulu date -d "$(echo "$line" | awk '{print $3,$4,$2,$5}')" +%s)" -ge "$(($(date +%s) + somedays))" ]; then
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still_valid_certs="${still_valid_certs}$line\n"
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fi
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fi
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done
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echo "Expired client certificates:"
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echo "${expired_certs}"
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echo "Valid client certificates expiring soon (in less than $((somedays / 60 / 60 / 24)) days):"
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echo "${expiring_soon_certs}"
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echo "Valid client certificates expiring later (in more than $((somedays / 60 / 60 / 24)) days):"
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echo "${still_valid_certs}"
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}
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