#!/bin/sh

# This script's purpose is to launch check_drupal with URL and
# password stored in a listing file.
#
# memento :
# drush en nagios
# drush vset nagios_page_path NAGIOS_PATH
# drush vset nagios_ua NAGIOS_PASSWORD

# Default options
NAGIOS_PLUGIN="/usr/lib/nagios/plugins/check_drupal"
DATABASE="/etc/nagios-plugins/check_drupal_multi.lst"

# Par défaut, on arrête le script à la première erreur non "catchée"
set -e

PROGPATH=$( echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,' )
REVISION="0.1"

. $PROGPATH/utils.sh

# Fonctions
# affiche le message d'aide
usage() {
cat <<EOF
  $0 [ -C check_drupal path] [ -d listing_file ] [ -H host_name ] [ -t default time_out_seconds ]
  $0 -h

	-h :       ce message d'aide

Listing_file is a text file with 3 fields, separated by tabulation.
1 : hostname
2 : UID
3 : path (optional)
4 : timeout (optional)
Example :
www.localdomain.com	xxxyyyzzz
www.otherdomain.com	zzzyyyxxx	hiddennagios	30

Default options :
	Database : $DATABASE
	check_drupal path : $NAGIOS_PLUGIN
EOF
}


# Début du code
# gestion des options de lancement
while getopts C:d:H:t:h f; do
	case $f in
		'C')
			NAGIOS_PLUGIN="$OPTARG"
			;;

		'd')
			DATABASE="$OPTARG"
			;;

		'H')
			NAGIOS_HOST="$OPTARG"
			;;

		't')
			NAGIOS_DEFAULT_TIMEOUT="$OPTARG"
			;;

		'h')
			usage
			exit 0
			;;

		\?)
			usage >&2
			exit 1
			;;
	esac
done
#(code inutile, mais que je garde parce qu'on ne sait jamais)
#shift $( expr $OPTIND - 1 )
#DATA="$1"

# Petite vérif.
if [ ! -f "$DATABASE" ]; then
	echo "UNKNOWN: no check_drupal_multi listing found."
	exit $STATE_UNKNOWN
fi
if [ ! -f "$NAGIOS_PLUGIN" ]; then
	echo "UNKNOWN: check_drupal could not be found."
	exit $STATE_UNKNOWN
fi

# Lookup for host in database
DATABASE_LINE="$( grep -w "^$NAGIOS_HOST" "$DATABASE" | head -n 1 )"
NAGIOS_DRUPAL_UID="$( printf "$DATABASE_LINE" | cut -f 2 )"
NAGIOS_DRUPALPATH="$( printf "$DATABASE_LINE" | cut -f 3 )"
NAGIOS_TIMEOUT="$( printf "$DATABASE_LINE" | cut -f 4 )"
if [ -z "$NAGIOS_TIMEOUT" ]; then
	NAGIOS_TIMEOUT="$NAGIOS_DEFAULT_TIMEOUT"
fi

# Check we actually got a host
if [ -z "$NAGIOS_DRUPAL_UID" ]; then
	echo "UNKNOWN: Host not found in listing file."
	exit $STATE_UNKNOWN
fi

# Launch the actual plugin with config
$NAGIOS_PLUGIN -H "$NAGIOS_HOST" -U "$NAGIOS_DRUPAL_UID" \
	$( test -n "$NAGIOS_DRUPALPATH" && printf "%s %s" "-P" "$NAGIOS_DRUPALPATH" ) \
	$( test -n "$NAGIOS_TIMEOUT"    && printf "%s %s" "-t" "$NAGIOS_TIMEOUT" )