#!/bin/bash
#Ramil Valitov ramilvalitov@gmail.com
#https://github.com/rvalitov/zabbix-php-fpm
#Script gets status of PHP-FPM pool

S_FCGI=$(type -P cgi-fcgi)
S_GREP=$(type -P grep)

if [[ ! -x $S_FCGI ]]; then
  echo "Utility 'cgi-fcgi' not found. Please, install it first."
  exit 1
fi

if [[ ! -x $S_GREP ]]; then
  echo "Utility 'grep' not found. Please, install it first."
  exit 1
fi

USER_ID=$(id -u)
if [[ $USER_ID -ne 0 ]]; then
  echo "Insufficient privileges. This script must be run under 'root' user or with 'sudo'."
  exit 1
fi

if [[ -z $1 ]] || [[ -z $2 ]]; then
  echo "No input data specified"
  echo "Usage: $0 php-path status"
  echo "where:"
  echo "php-path - path to socket file, for example, /var/lib/php7.3-fpm/web1.sock"
  echo "or IP and port of the PHP-FPM, for example, 127.0.0.1:9000"
  echo "status - path configured in pm.status of PHP-FPM"
  exit 1
fi

POOL_URL=$1
POOL_PATH=$2
#connecting to socket or address, https://easyengine.io/tutorials/php/directly-connect-php-fpm/
PHP_STATUS=$(
  SCRIPT_NAME=$POOL_PATH \
  SCRIPT_FILENAME=$POOL_PATH \
  QUERY_STRING=json \
  REQUEST_METHOD=GET \
  $S_FCGI -bind -connect "$POOL_URL" 2>/dev/null
)
echo "$PHP_STATUS" | $S_GREP "{"
exit 0