#!/bin/sh
#
### BEGIN INIT INFO
# Provides:          slt
# Required-Start:    $remote_fs
# Required-Stop:     $remote_fs
# Should-Start:      $network
# Should-Stop:       $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start and stop slt - a TLS reverse-proxy
# Description:       Controls the slt daemon.
### END INIT INFO

set -e
set -u

NAME=slt
DESC="TLS reverse-proxy"
DAEMON=/usr/bin/slt
PIDFILE="/var/run/${NAME}.pid"
DEFAULTSFILE="/etc/default/$NAME"


test -x "$DAEMON" || exit 0

# Define LSB log_* functions.
# Depend on lsb-base to ensure that this file is present.
. /lib/lsb/init-functions

# Load the VERBOSE setting and other rcS variables
[ -f /etc/default/rcS ] && . /etc/default/rcS

# Read configuration variable file if it is present
[ -f "$DEFAULTSFILE" ] && . "$DEFAULTSFILE"


check_status() {
    status_of_proc -p "$PIDFILE" "$DAEMON" "$NAME"
}


do_start() {
    start-stop-daemon --start --quiet --oknodo --background \
            --pidfile "$PIDFILE" --make-pidfile --exec "$DAEMON" -- ${DAEMON_ARGS:-}
    # The process cannot detach on its own - thus start-stop-daemon does not return a status.
    # Wait a bit and check if the process is alive.
    sleep 1
    if check_status >/dev/null; then
        log_end_msg 0 || true
    else
        log_end_msg 1 || true
    fi
}


case "${1:-}" in
    start)
        if [ "$START_DAEMON" != no ]; then
            log_daemon_msg "Starting $DESC" "$NAME" || true
            do_start
        else
            log_warning_msg "Not starting $NAME daemon. Please edit $DEFAULTSFILE first."
        fi
        ;;
    stop)
        log_daemon_msg "Stopping $DESC" "$NAME" || true
        if start-stop-daemon --stop --quiet --pidfile "$PIDFILE" --remove-pidfile; then
            log_end_msg 0 || true
        else
            log_end_msg 1 || true
        fi
        ;;
    restart)
        log_daemon_msg "Restarting $DESC" "$NAME" || true
        start-stop-daemon --stop --quiet --oknodo --retry 30 --pidfile "$PIDFILE" --remove-pidfile
        if [ "$START_DAEMON" != no ]; then
            do_start
        else
            log_end_msg 0 || true
            log_warning_msg "Not starting $NAME daemon. Please edit $DEFAULTSFILE first."
        fi
        ;;
    status)
        check_status && exit 0 || exit $?
        ;;
    *)
        log_action_msg "Usage: /etc/init.d/$NAME {start|stop|restart|status}" || true
        exit 1
esac