#!/sbin/runscript
# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

FILENAME=$(basename "$1")
PROGNAME=${FILENAME/fcgi./}
SPAWNFCGI=/usr/bin/spawn-fcgi
PIDPATH=/var/run/spawn-fcgi
PIDFILE=${PIDPATH}/${PROGNAME}

depend() {
	need net
}

start() {
	if [[ "${FILENAME}" == "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/fcgi.trac"
		eerror "  cp /etc/conf.d/spawn-fcgi /etc/conf.d/fcgi.trac"
		eerror "  $(basename "${EDITOR}") /etc/conf.d/fcgi.trac"
		eerror
		eerror "The new name must start with \"fcgi.\" or it won't work."
		return 1
	fi

	local X E PHP_FCGI_CHILDREN_OPTION USER_OPTION GROUP_OPTION SOCKET_OPTION PORT_OPTION RETVAL
	
	if [[ -z "${FCGI_WEB_SERVER_ADDRS}" ]]; then
		FCGI_WEB_SERVER_ADDRS=127.0.0.1
	fi

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

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

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

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

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

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

	# Store all spawn-fcgi PIDs in the same place.
	install -d "${PIDPATH}" -m 0700 -o root

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

		env - ${E} ${SPAWNFCGI} ${SOCKET_OPTION} ${PORT_OPTION} -f ${FCGI_PROGRAM} -P ${PIDFILE}-${X}.pid ${USER_OPTION} ${GROUP_OPTION} ${PHP_FCGI_CHILDREN_OPTION} &> /dev/null
		RETVAL=$?
		
		# Stop on error. Don't want to spawn a mess!
		[[ "${RETVAL}" != "0" ]] && break
	done
	eend ${RETVAL}
}

stop() {
	local X RETVAL

	ebegin "Stopping FastCGI application ${PROGNAME}"
	kill `for X in ${PIDFILE}-[0-9]*.pid; do cat $X; echo -n ' '; done` &> /dev/null
	RETVAL=$?
	eend ${RETVAL}

        rm -f ${PIDFILE}-[0-9]*.pid
        return $RETVAL
}