getDomainList

#!/bin/bash

SSLPATH=/etc/nginx/ssl


if [ -z "$SITESPATH" ]; then
    if [ -d "/etc/nginx/sites-enabled" ]; then
        SITESPATH="/etc/nginx/sites-enabled"
    elif [ -d "sites-enabled" ]; then
        SITESPATH="sites-enabled"
    else
        echo "No valid directory found for SITESPATH."
        exit 1
    fi
fi


if [ -z "$SSLPATH" ]; then
    if [ -d "ssl" ]; then
        SSLPATH="ssl"
    elif [ -d "/etc/nginx/ssl" ]; then
        SSLPATH="/etc/nginx/ssl"
    else
        echo "No valid directory found for SSLPATH."
#        exit 1
    fi
fi


if [[ ! -z "$SSLPATH" ]] && [[ -d "$SSLPATH" || -f "$SSLPATH" ]]; then
   hours_old=$((($(date +%s)-$(date -r /etc/nginx/ssl/nginx.key +%s))/(60*60)))
   echo "Hours since last key $hours_old"

   if [ $hours_old -lt 1 ]; then
    echo "nothing to do"
    exit 0
   fi
fi

anyFailures=0
for f in $SITESPATH/*
do
  domains=$(grep -oP '(?<=server_name\s).*(?=;)' $f)
  IFS=' ' read -r -a array <<< "$domains"
  for domain in "${array[@]}" 
  do
    if [[ "$DOMAIN_LIST" != *"-d $domain"* ]]; then  # Add if not a duplicate domain      
        # Fetch the first A (IPv4) record
        ipv4_address=$(dig A $domain +short | head -n 1)
        # Fetch the first AAAA (IPv6) record
        ipv6_address=$(dig AAAA $domain +short | head -n 1)

        if [ -z "$ipv4_address" ] && [ -z "$ipv6_address" ]; then
           echo "$domain - FAILED DNS"
           anyFailures=1
        else
           printf "%-30s - IPv4: %s, IPv6: %s\n" "$domain" "$ipv4_address" "$ipv6_address"
           DOMAIN_LIST+="-d $domain "
        fi   
    fi
  done
done

if [ -z "$DOMAIN_LIST" ]; then
    echo "No host domains found."
    exit 1
elif [ "$anyFailures" -eq 1 ]; then
    echo "There were failures in DNS resolution."
    exit 1    
else
    echo $DOMAIN_LIST
fi