#!/bin/bash
#
# chkconfig: - 84 16
# description: Start up moin FastCGI external applications
#
# processname: moin.fcg
# config: /etc/sysconfig/moin-fastcgi

# source function library
. /etc/rc.d/init.d/functions

# Get network config
. /etc/sysconfig/network

# Check that networking is up.
[ "${NETWORKING}" = "no" ] && exit 0

# no wikis by default (configure in /etc/sysconfig/moin-fastcgi)
WIKI_COUNT=0

# Sleep 2 seconds before checking status
SLEEP_TIME=2000000

# Run as user apache
httpduser=apache

# source the config
[ -f /etc/sysconfig/moin-fastcgi ] && . /etc/sysconfig/moin-fastcgi

RETVAL=0
prog=/usr/bin/python
PRE_PORT_PAT='^tcp[[:space:]]*0[[:space:]]*0[[:space:]]* 127\.0\.0\.1:'
POST_PORT_PAT='[[:space:]]*0\.0\.0\.0:\*[[:space:]]*LISTEN[[:space:]]*[0-9]*/python[[:space:]]*$'

moin_status () {
	#echo Checking status for port $1
	# This echo seems to help detection at start time for reasons unknown
	echo &> /dev/null
	/bin/netstat -nltp |
	/bin/grep "${PRE_PORT_PAT}$1${POST_PORT_PAT}" &> /dev/null
}

moin_pid () {
	/bin/netstat -nltp |
	/bin/grep "${PRE_PORT_PAT}$1${POST_PORT_PAT}" |
	/bin/sed -e 's@.*[[:space:]][[:space:]]*\([0-9]*\)/python[[:space:]]*$@\1@'
}

moin_start () {
	WIKINAME="${WIKI_NAME[$1]}"
	WIKIFCGI="${WIKI_FCGI[$1]}"
	WIKIDIR="$(dirname $WIKIFCGI)"
	WIKIPORT=${WIKI_PORT[$1]}
	echo -n $"Starting moin wiki ${WIKINAME}: "
	cd ${WIKIDIR}
	/sbin/runuser -s /bin/sh -c "$prog ${WIKIFCGI}" $httpduser &> /dev/null &
	disown -ar
	usleep $SLEEP_TIME
	moin_status $WIKIPORT && echo_success || echo_failure
	RETVAL=$?
	echo
	cd - &> /dev/null
}

moin_stop () {
	WIKINAME="${WIKI_NAME[$1]}"
	WIKIPORT=${WIKI_PORT[$1]}
	echo -n $"Shutting down moin wiki ${WIKINAME}: "
	WIKIPID=$(moin_pid $WIKIPORT)
	[ -n "$WIKIPID" ] && kill "$WIKIPID" && echo_success || echo_failure
	echo
}

case "$1" in
  start)
	if [ $WIKI_COUNT -gt 0 ]; then
		for WIKI in $(seq 1 $WIKI_COUNT)
		do
			moin_start $WIKI
		done
	fi
	;;
  stop)
	if [ $WIKI_COUNT -gt 0 ]; then
		for WIKI in $(seq 1 $WIKI_COUNT)
		do
			moin_stop $WIKI
		done
	fi
	;;
  restart|reload)
        $0 stop
        $0 start
        ;;
  condrestart)
	if [ $WIKI_COUNT -gt 0 ]; then
		for WIKI in $(seq 1 $WIKI_COUNT)
		do
			if moin_status ${WIKI_PORT[${WIKI}]}; then
				moin_stop $WIKI
				moin_start $WIKI
			fi
		done
	fi
	;;
  status)
	if [ $WIKI_COUNT -gt 0 ]; then
		for WIKI in $(seq 1 $WIKI_COUNT)
		do
			moin_status ${WIKI_PORT[${WIKI}]} &&
			echo $"moin wiki ${WIKI_NAME[${WIKI}]} is running" ||
			echo $"moin wiki ${WIKI_NAME[${WIKI}]} is stopped"
		done
	fi
	;;
  *)
        echo $"Usage: $0 {start|stop|restart|reload|condrestart|status}"
        exit 1
esac

exit 0