#!/bin/bash

# Copyright 2005 Peter Poeml <apache@suse.de>. All Rights Reserved.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.


function usage() {
        echo "$(basename $0): enable/disable an apache module in $var in $sysconf"
        echo
        echo "usage: $(basename $0) [-d] module"
        echo "       $(basename $0) -l                    list modules"
        echo "       $(basename $0) -q module             query if module is installed"
        echo
        echo "HTTPD_INSTANCE=<instance_name> environment variable can be used to specify"
        echo "apache instance (see README-instances.txt); sysconfig file is expected" 
        echo "at /etc/sysconfig/apache2@<instance_name> ."
        exit 1
}

unset instance_suffix
if [ -n "$HTTPD_INSTANCE" ]; then
  instance_suffix="@$HTTPD_INSTANCE"
fi

sysconf=/etc/sysconfig/apache2$instance_suffix
var=APACHE_MODULES
PATH="$PATH:/usr/bin:/usr/sbin:/usr/share/apache2"

if [ $# -lt 1 ]; then
        usage
fi

action=enable
case "$1" in 
-d) action=disable; shift;;
-l) action=list; shift;;
-q) action=query; shift;;
-*) usage;; 
esac

case $(basename $0) in 
a2dismod) action=disable;;
esac

mod=$1


if [ $action = enable ]; then
	sysconf_addword $sysconf $var $mod
	exit $?
elif [ $action = disable ]; then
	sysconf_addword -r $sysconf $var $mod
	exit $?
elif [ $action = query ]; then
	if a2enmod -l | grep -q "\<$mod\>"; then
		exit 0
	else
		exit 1
	fi
else
	source $sysconf
	eval echo \$$var
fi