CertSpotter -- Certificate Transparency Monitor by SSLMate Bash client with curl and jq

sslmate.sh

#!/usr/bin/env bash

#title           :sslmate.sh
#description     :This script will look for transparency logs and shows the JSON output 
#author          :Ali Mosajjal
#date            :20200222
#version         :0.1
#usage           :bash sslmate.sh --domain YOURDOMA.IN --apikey APIKEY_FROM_SSLMATE --subdomains true/false
#notes           :Install curl and jq to use this script.
#bash_version    :5.0.16(1)-release
#api documents   :https://sslmate.com/certspotter/api/docs-v1
#==============================================================================

LINE=$(printf '%0.s=' $(seq 1 ${COLUMNS:-$(tput cols)}))
BLD="\e[1m"   #Bold
BLK="\e[5m"   #Blink
YLW="\e[33m"  #Yellow Text
GRN="\e[32m"  #Green Text
RED="\e[31m"  #Red Text

YLWBG="\e[43m"      #Yellow Background
GRNBG="\e[42m"      #Green Background
REDBG="\e[41m"      #Red Background

E="\e[0m"     #Erase all attributes


echo -e "Here's how you parse arguments\n"
usage() {
      echo -e "--domain example.com\t\t scans for domain"
      echo -e "--apikey ***\t\t\t API key for certspotter"
      echo -e "--subdomains true/false\t\t Include subdomains in search (or not)"
      echo -e "--yes true\t\t\t says yes to any question automatically"
      exit 0
    }

POSITIONAL=()
while [[ $# -gt 0 ]]
do
key="$1"
case $key in
    -d|--domain)
    domain=$2
    shift # past argument
    shift # past value
    ;;
    -a|--apikey)
    apikey=$2
    shift # past argument
    shift # past value
    ;;
    -s|--subdomains)
    subdomains=$2
    shift # past argument
    shift # past value
    ;;
    --yes)
    yes=0
    shift # past argument
    ;;
    *)    # unknown option
    POSITIONAL+=("$1") # save it in an array for later
    usage
    shift # past argument
    ;;
esac
done
set -- "${POSITIONAL[@]}" # restore positional parameters

if [ -z $apikey ]
then
  echo here
  usage
fi

echo -e $GRN$LINE$E
echo -e "Scanning CTL for domain $domain with subdomain scanning set to $subdomains"

c=0
if y==0
then

read -p "Do you wish to continue? " -n 1 -r
if [[ $REPLY =~ ^[Yy]$ ]]
then
    c=1
fi
else
  c=1

fi
echo
echo -e $GRN$LINE$E

if (($c==0))
then
  exit
fi

curl -s -H "Authorization: Bearer $apikey" "https://api.certspotter.com/v1/issuances?include_subdomains=$subdomains&expand=issuer&expand=cert&expand=dns_names&dns_names=pubkey_sha256&domain=$domain" | jq .