#!/sbin/sh
#

. /lib/svc/share/smf_include.sh

#
# Because we depend on repository properties (and hence on knowing our
# service's FMRI) to locate the squid instance, we exit with ERR_NOSMF
# if we're not run via the restarter.
#
if [ -z "$SMF_FMRI" ]; then
	echo "Squid startup script must be run via the SMF framework"
	exit $SMF_EXIT_ERR_NOSMF
fi

#
# Figure out where squid is installed by querying the repository
#
SQUID_HOME=`svcprop -p squid/homedir $SMF_FMRI`
[ $? != 0 ] && exit $SMF_EXIT_ERR_CONFIG

#
# Allow admin to specify an optional squid/conffile property; otherwise,
# squid.conf is assumed to be in $SQUID_HOME/etc/squid.conf.
#
CONF_FILE=`svcprop -p squid/conffile $SMF_FMRI 2>/dev/null`
[ $? != 0 ] && CONF_FILE=$SQUID_HOME/etc/squid.conf

PATH=$SQUID_HOME/sbin:/bin:/usr/bin
export PATH

[ ! -f $CONF_FILE ] && exit $SMF_EXIT_ERR_CONFIG

case "$1" in
start)
	#
	# Check validity of the conf file; this lets us
	# cleanly go to maintenance on configuration errors.
	#
	squid -f $CONF_FILE -k parse
	if [ $? != 0 ]; then
		echo Validation of $CONF_FILE failed; check for syntactic \
		    errors and see previous messages.
		exit $SMF_EXIT_ERR_CONFIG
	fi

	#
	# A dirty hack; it would be extremely helpful if squid had an
	# option to tell us the cache dir.  Anyway, grovel the .conf file
	# to work out the cache directory.  If not present, then default to
	# $SQUID_HOME/var/cache, which is what squid seems to use as its
	# default.
	#
	CACHE_DIR=`egrep '^[ \t]*cache_dir' $CONF_FILE | \
	    awk '{print $3}'`
        [ -z "$CACHE_DIR" ] && CACHE_DIR=$SQUID_HOME/var/cache

	if [ ! -d $CACHE_DIR ]; then
		echo $0: admin must mkdir cache root directory \(believed \
		    to be $CACHE_DIR\) and set permissions
		exit $SMF_EXIT_ERR_CONFIG
	fi

	#
	# Use squid -z to create the cache directory hierarchy if it doesn't
	# exist.  This is a convience.
	#
	if [ ! -d $CACHE_DIR/00 ]; then
		echo $0: creating cache directories at $CACHE_DIR
		squid -f $CONF_FILE -z
		if [ $? != 0 ]; then
			echo $0: cache directory creation failed!
			exit $SMF_EXIT_ERR_CONFIG
		fi
	fi

	#
	# Start squid, allowing it to daemonize.
	#
	squid -f $CONF_FILE -sY
	;;

stop)
	squid -f $CONF_FILE -k shutdown
	;;

*)
	echo "Usage: $0 {start|stop}"
	exit 1
	;;
esac