Magento Version Site Checker

sitecheck

#!/usr/bin/env bash

set -eu


########################################
## Introduction
########################################
HELP_INFO=$(cat <<'CONTENTS_HEREDOC'
sitecheck v0.1
Copyright (c) 2019, Matt Johnson ([email protected]). All 
rights reserved.

Magento Version Site Checker
https://gist.github.com/mttjohnson/0a0fbd34e3b91c6355a8a0dbb0ba2cb6

Program for checking the Magento version of a site or list of sites
provided the base_url of the Magento site has been provided.

Usage: sitecheck [options]
  -u=magento_base_url,  --url=magento_base_url   Magento Base URL.
  -f=file_name,         --file=file_name         File with URLs on each line
Examples:
  # Check a single site
  echo "https://www.example.com/" | sitecheck
  sitecheck -u=https://www.example.com/
  sitecheck --url=https://www.example.com/

  # Check multiple sites
  echo "
  https://www.example.com/
  https://www.example2.com/
  https://www.example3.com/
  " | sitecheck
  cat ./file_name | sitecheck
  sitecheck -f=./file_name
  sitecheck --file=./file_name
CONTENTS_HEREDOC
)


########################################
## Command Line Options
########################################
declare MAGENTO_BASE_URL=""
declare FLAG_MAGENTO_BASE_URL=false
declare FILE=""
declare FLAG_FILE=false
declare FLAG_INPUT=false
for switch in $@; do
    case $switch in
        -u=*|--url=*)
            MAGENTO_BASE_URL="${switch#*=}"
            if [[ ! "${MAGENTO_BASE_URL}" =~ ^.+$ ]]; then
                >&2 echo "Error: Invalid value given -u|--url=${MAGENTO_BASE_URL}"
                exit -1
            fi
            FLAG_MAGENTO_BASE_URL=true
            ;;
        -f=*|--file=*)
            FILE="${switch#*=}"
            if [[ ! "${FILE}" =~ ^.+$ ]]; then
                >&2 echo "Error: Invalid value given -f|--file=${FILE}"
                exit -1
            fi
            if ! [ -f "${FILE}" ]; then
                >&2 echo "Error: No file found at location specified"
                exit -1
            fi
            FLAG_FILE=true
            ;;
        *)
            echo "${HELP_INFO}"
            exit;
            ;;
    esac
done


########################################
## Test for piped input
########################################
if [ -t 0 ]; then # check if STDIN is a terminal
  if [[ ${FLAG_FILE} == true ]]; then
    if [ ! -z "${FILE}" ]; then # is not empty
      INPUT=$(< ${FILE});
      FLAG_INPUT=true
    else
      >&2 echo "Error: No configuration input given!"
      exit -1
    fi
  fi
else # expecting STDIN to be piped data
  INPUT=$(< /dev/stdin);
  if [ ! -z "${INPUT}" ]; then # is not empty
    FLAG_INPUT=true
  fi
fi


########################################
## Build list of sites to check
########################################
declare -a SITES_TO_CHECK=()

if [[ ${FLAG_MAGENTO_BASE_URL} == true ]]; then
    SITES_TO_CHECK+=("${MAGENTO_BASE_URL}")
fi

if [[ ${FLAG_INPUT} == true ]]; then
  # Read each line from input and add to site array
  while IFS='' read -r LINE_FROM_INPUT || [[ -n "${LINE_FROM_INPUT}" ]]; do
    [ -z "${LINE_FROM_INPUT}" ] && continue
    SITES_TO_CHECK+=("${LINE_FROM_INPUT}")
  done <<< "${INPUT}"
fi


########################################
## Check list of sites
########################################

for EACH_SITE in "${SITES_TO_CHECK[@]}"
do
  FORMATTED_BASE_URL=$(echo "${EACH_SITE}" | tr -d '[:space:]') #remove any whitespace from variable
  FORMATTED_BASE_URL=$(echo "${EACH_SITE}" | perl -nle 's/(.+[^\/])$/$1\//;print') #ensure url ends with a slash
  
  MAGENTO_VERSION=$(curl -s ${FORMATTED_BASE_URL}magento_version)
  echo "${MAGENTO_VERSION} - ${FORMATTED_BASE_URL}"
done