#!/sbin/runscript
# Copyright 1999-2009 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/www-servers/spawn-fcgi/files/spawn-fcgi.initd,v 1.1 2009/04/01 10:12:17 bangert Exp $

PROGNAME=${SVCNAME/spawn\-fcgi./}
SPAWNFCGI=/usr/bin/spawn-fcgi
PIDPATH=/var/run/spawn-fcgi
PIDFILE=${PIDPATH}/${PROGNAME}

depend() {
	need net
}

start() {
	if [[ "${SVCNAME}" == "spawn-fcgi" ]]; then
		eerror "You are not supposed to run this script directly. Create a symlink"
		eerror "for the FastCGI application you want to run as well as a copy of the"
		eerror "configuration file and modify it appropriately like so..."
		eerror
		eerror "  ln -s spawn-fcgi /etc/init.d/spawn-fcgi.trac"
		eerror "  cp /etc/conf.d/spawn-fcgi /etc/conf.d/spawn-fcgi.trac"
		eerror "  `basename "${EDITOR}"` /etc/conf.d/spawn-fcgi.trac"
		eerror
		return 1
	fi

	if [[ ! -z "${FCGI_SOCKET}" ]] && [[ ! -z "${FCGI_PORT}" ]]; then
		eerror "Only one of both must be defined:"
		eerror "  FCGI_SOCKET=${FCGI_SOCKET}"
		eerror "  FCGI_PORT=${FCGI_PORT}"
		return 1
	fi

	local X E OPTIONS SOCKET_OPTION PORT_OPTION RETVAL
	
	if [[ -z "${FCGI_ADDRESS}" ]]; then
		FCGI_ADDRESS=127.0.0.1
	fi

	if [[ -z "${FCGI_CHILDREN}" ]]; then
		FCGI_CHILDREN=1
	fi

	if [[ -n "${PHP_FCGI_CHILDREN}" ]]; then
		OPTIONS="${OPTIONS} -C ${PHP_FCGI_CHILDREN}"
	fi

	if [[ -n "${FCGI_CHROOT}" ]]; then
		OPTIONS="${OPTIONS} -c ${FCGI_CHROOT}"
	fi

	if [[ -n "${FCGI_USER}" ]] && [[ "${FCGI_USER}" != "root" ]]; then
		OPTIONS="${OPTIONS} -u ${FCGI_USER}"
	fi

	if [[ -n "${FCGI_GROUP}" ]] && [[ "${FCGI_GROUP}" != "root" ]]; then
		OPTIONS="${OPTIONS} -g ${FCGI_GROUP}"
	fi

	ALLOWED_ENV="$ALLOWED_ENV USER GROUPS PHP_FCGI_MAX_REQUESTS RAILS_ENV TRAC_ENV_PARENT_DIR TRAC_ENV"
	unset E

	for i in ${ALLOWED_ENV}; do
		[[ -n "${!i}" ]] && E="${E} -e ${i}=${!i}"
	done

	ebegin "Starting FastCGI application ${PROGNAME}"
	for X in `seq 1 ${FCGI_CHILDREN}`; do
		local P
		P=${PIDFILE}-${X}.pid
		[[ -n "${FCGI_SOCKET}" ]] && SOCKET_OPTION="-s ${FCGI_SOCKET}-${X}"
		[[ -n "${FCGI_PORT}" ]] && PORT_OPTION="-a ${FCGI_ADDRESS} -p $((${FCGI_PORT} + ${X} - 1))"

		start-stop-daemon --start --pidfile ${P} ${E} --exec ${SPAWNFCGI} -- \
			${SOCKET_OPTION} ${PORT_OPTION} -f ${FCGI_PROGRAM} -P ${P} ${OPTIONS}
		RETVAL=$?
		
		# Stop on error. Don't want to spawn a mess!
		[[ "${RETVAL}" != "0" ]] && break
	done
	eend ${RETVAL}
}

stop() {
	local X RETVAL=0

	ebegin "Stopping FastCGI application ${PROGNAME}"
	for X in ${PIDFILE}-[0-9]*.pid ; do
		start-stop-daemon --stop --pidfile ${X} || \
			{ RETVAL=$? && break ; }
	done
	eend ${RETVAL}
}