#!/bin/sh

if [ -z "${CONFIGURATION_DIR:-}" ]
then
    CONFIGURATION_DIR=/etc/lfirewall
    . ${CONFIGURATION_DIR}/setup
fi

options=$(getopt -l "firewall-action,verbose" -o "fv" -- "$@")
if [ $? != 0 ] ; then
	echo "Error while checking options ($0)">&2
	exit 1
fi
eval set -- "$options"
set -eu

firewall_action=no
if [ -z ${verbose:-} ]
then
	verbose=0
fi

while :
do
	if [ ${verbose} = "1" ] ; then
		echo "$@"
	fi

	case "$1" in
		-f|--firewall-action)
			firewall_action=yes
			;;
		-v|--verbose)
			verbose=$(( verbose + 1 ))
			if [ ${verbose} -gt 1 ] ; then
				set -x
			fi
			if [ ${verbose} -gt 2 ] ; then
				set -v
			fi
			;;
		--)
			shift
			break
			;;
	esac
	shift
done
do_log=do_not_log_action
if [ ${verbose} -gt 0 ] ; then
        do_log=log_action
fi
export do_log


export do_action=${1:-}
script_dir=${2:-}

shift 2 # clean any arguments

if [ -z "${do_action}" ] ; then
    echo "ERROR: missing action" >&2
    exit 2
fi
if [ -z "${script_dir}" ] ; then
    echo "ERROR: missing script directory" >&2
    exit 2
fi

if [ ${do_action} = "do_delete" ] && [ ${firewall_action} = "yes" ]
then
    # We do nothing in that specific case
    # (post-up-down)
    # just leave the script
    # because we let post-down directive
    # from /etc/network/interfaces
    # do the job
    exit
fi

cd ${script_dir}
for script_file in `ls`
do
    if [ -x ${script_file} ]
    then
        # If file is executable
        # we SOURCE it (because exporting function
        # can't be done in sh)
        set +eu # Just to avoid that a bad script crashes all others
        . ${script_dir}/${script_file} \
            || echo "ERROR in ${script_dir}/${script_file}" >&2
        set -eu
    fi
done
cd - > /dev/null