#!/bin/bash
#
# The MIT License (MIT)
#
# Copyright (c) 2014 Mathias Leppich <mleppich@muhqu.de>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

usage() {
    cat <<USAGE
Usage: $(basename $0) [-connect CONN] -r <code>

Options:
     -connect CONN    Passed to cgi-fcgi, default: /var/run/php5-fpm.sock
                      examples: ip.add.re.ss:port or /path/to/php-fpm.sock

     -r <code>        Run PHP <code> without using script tags <?..?>

USAGE
}

main() {
    echo "<?php $PHPCODE" > $PHPFPMCLI_FILE
    SCRIPT_FILENAME=$PHPFPMCLI_FILE \
    REQUEST_METHOD=GET \
    cgi-fcgi -bind -connect "$CONN" | stripheaders
    rm $PHPFPMCLI_FILE
}

stripheaders() {
    sed -E '1,/^.$/ d'
}

PHPFPMCLI_FILE="/tmp/php-fpm-cli.$$.php"
CONN="/var/run/php5-fpm.sock"
PHPCODE=""
init() {
  until [ -z "$1" ]; do
    case "$1" in
      -connect|--connect) shift; CONN="$1"; shift; ;;
      
      -r) shift; PHPCODE="$1"; shift; ;;

      help|-h|-help|--help)
        usage;
        exit 0
        ;;

      *)
        echo "unknown option: $1";
        usage;
        exit 1
        ;;
    esac
  done
  if [ -z "$PHPCODE" ]; then
    echo "missing option: -r <code>";
    usage;
    exit 1
  fi
}

init "$@" && main