test-ws-status.sh

#!/usr/bin/env bash
set -e

DOMAIN=${1}
URI=${2}

printf "Testing WS Status for %s ...\n" ${DOMAIN}

for item in $(dig +short ${DOMAIN} | sort); do
  if [[ ${item} =~ ^[0-9.]+$ ]]; then
    printf "%15s ..... " ${item}
    websocket_key='QGH+pbZkGhi5T71i+Q2ovQ==' # $(openssl rand -base64 16 | grep -oE '[A-Za-z0-9=+]+' | tr -d '\n')
    status=$(curl -s -o /dev/null --max-time 5 -w "%{http_code}" --resolve "${DOMAIN}:443:${item}" https://${DOMAIN}/${URI} -H 'Upgrade: websocket' -H 'Sec-WebSocket-Version: 13' -H "Sec-WebSocket-Key: ${websocket_key}" || true)
    if [ ${status} == 101 ]; then
      echo OK
    else
      echo ${status}
    fi
  fi
done