#!/usr/bin/env bash
# PiVPN: list clients script
# Updated Script to include Expiration Dates and Clean up Escape Seq -- psgoundar

INDEX="/etc/openvpn/easy-rsa/pki/index.txt"
printf "\\n"
if [ ! -f "${INDEX}" ]; then
        echo "The file: $INDEX was not found!"
        exit 1
fi

printf ": NOTE : The first entry should always be your valid server!\n"
printf "\\n"
printf "\\e[1m::: Certificate Status List :::\\e[0m\\n"
printf "\\e[4mStatus\\e[0m ::  \\e[4mName\\e[0m\\e[0m        ::  \\e[4mExpiration \\e[0m\\n" 

while read -r line || [ -n "$line" ]; do
    STATUS=$(echo "$line" | awk '{print $1}')
    NAME=$(echo "$line" | awk '{print $5}' | awk -F= '{print $2}')
    EXPD=$(echo "$line" | awk '{if (length($2) == 15) print $2; else print "20"$2}' | cut -b 1-8 | date +"%b %d %Y" -f -)
        
    if [ "${STATUS}" == "V" ]; then
        printf "     Valid   ::   %s :: %s\\n" "$NAME" "$EXPD"
    elif [ "${STATUS}" == "R" ]; then
        printf "     Revoked   ::   %s :: %s\\n" "$NAME" "$EXPD"
    else
        printf "     Unknown   ::   %s :: %s\\n" "$NAME" "$EXPD"
    fi

done <${INDEX} | column -t
printf "\\n"