#!/bin/bash
#=============================================
# PH3 package start script skeleton
#=============================================

# Do NOT "set -e"

# PATH should only include /services/* if it runs after the mount script
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="Mount userroot"
PACKAGE=userroot
NAME=userroot
DAEMON="/bin/mount"
DAEMON_ARGS=""
PIDFILE=""

CGROUP_CLASS=users

VERBOSE="yes"

#
# exit with error if init-functions not found
#
if [ ! -f "/lib/init/init-functions" ]; then 
	echo "ERROR: /lib/init/init-functions not found"
	exit 1
else
	. /lib/init/init-functions
fi

#
# redefine mountpoint 
#
# Return
#   0 if mounted
#   1 if not mounted
#str: komentiram ia zashtoto ne raboti na vps-ite
#mountpoint()
#{
#    if [ "z$1" == "z-q" ]; then
#        mnt="$2"
#    else
#        mnt="$1"
#    fi
#    if [ -n "$(awk "{if (\$2 == \"$mnt\") print \$2}" /proc/mounts)" ]; then
#        return 0
#    else
#        return 1
#    fi
#}

is_writable()
{
	touch $1/test_is_writable.tmp > /dev/null 2>&1
	RETVAL=$?
	[ $RETVAL -eq 0 ] && rm $1/test_is_writable.tmp
	return $RETVAL
}

#----------------------------------------------
# Redefine functions
#----------------------------------------------
do_start()
{
	#respawn from init
	if [[ ! $HOSTNAME == vps*.mylogin.co ]]; then
	pkill -9 -f pdns_recursor
	mountpoint -q /services/userroot/sys/devices/system/cpu || mount --bind /var/cpu_mounts/sys/devices/system/cpu /services/userroot/sys/devices/system/cpu
	fi

	# /services/config for exim
	is_writable /services/userroot/services/config || mount -t tmpfs -o noexec,mode=0700 none /services/userroot/services/config

	# /tmp
	is_writable /services/userroot/tmp || mount --rbind /tmp /services/userroot/tmp
	is_writable /services/userroot/var/tmp || mount --rbind /tmp /services/userroot/var/tmp

	# /var/run
	#is_writable /services/userroot/var/run || mount -t tmpfs none /services/userroot/var/run
	is_writable /services/userroot/run || mount -t tmpfs -o noexec,mode=0755 none /services/userroot/run

	# /var/run/mysql/mysqld.sock=
	#[ -d "/services/userroot/var/run/mysqld" ] || mkdir /services/userroot/var/run/mysqld
	[ -d "/services/userroot/run/mysqld" ] || mkdir /services/userroot/run/mysqld
	#mountpoint -q /services/userroot/var/run/mysqld || mount --rbind /var/run/mysqld /services/userroot/var/run/mysqld
	mountpoint -q /services/userroot/run/mysqld || mount --rbind /var/run/mysqld /services/userroot/run/mysqld

	#chmod a+s /services/userroot/services/exim/bin/exim
	chmod 1777 /services/userroot/tmp
	chmod 1777 /services/userroot/var/tmp
	chmod 1777 /services/userroot/run

	# /var/spool/exim
	[ -d "/services/userroot/var/spool/exim" ] || mkdir /services/userroot/var/spool/exim
	is_writable /services/userroot/var/spool/exim || mount -t tmpfs -o noexec,mode=0700,uid=1001,gid=1007 none /services/userroot/var/spool/exim

	chown 1001:1001 /services/userroot/var/spool/exim
	chmod 1777 /services/userroot/var/spool/exim
	# /var/log/exim
	is_writable /services/userroot/var/log/exim || mount -t tmpfs -o size=16m,noexec,uid=1001,gid=1007 none /services/userroot/var/log/exim

	[ -d "/services/userroot/var/log/exim" ] || mkdir /services/userroot/var/log/exim
	chown 1001:1001 /services/userroot/var/log/exim
	chmod 1777 /services/userroot/var/log/exim

	[ -d "/services/userroot/proc" ] || mkdir /services/userroot/proc

	mountpoint -q /services/userroot/proc || mount -t proc -o hidepid=2,gid=111 none /services/userroot/proc

	if [ ! -c /services/userroot/dev/null ]; then
		cd /services/userroot/dev/
		tar xf dev.tgz
	fi

	mountpoint -q /services/userroot/dev/pts || mount -t devpts -o gid=888,newinstance devpts /services/userroot/dev/pts
	chmod 666 /services/userroot/dev/pts/ptmx

	#is_writable /services/userroot/usr/local/frontpage || (cp -a /services/userroot/usr/local/frontpage /tmp && mount -t tmpfs none /services/userroot/usr/local/frontpage && cp -a /tmp/frontpage/ /services/userroot/usr/local/ && rm -rf /tmp/frontpage)
	#is_writable /services/userroot/usr/local/frontpage || cp -a /services/userroot/usr/local/frontpage /tmp || mount -t tmpfs none /services/userroot/usr/local/frontpage || cp -a /tmp/frontpage/ /services/userroot/usr/local/ || rm -rf /tmp/frontpage 
	#|| mount storage:/storage/shares_binary/userroot/standard_x86_64/usr/local/frontpage /services/userroot/usr/local/frontpage/ -o rw,noatime,vers=3,nolock

	return 0
}

do_stop()
{
	# /services/config for exim
	mountpoint -q /services/userroot/proc || umount /services/userroot/proc
	# /services/config for exim
	mountpoint -q /services/userroot/services/config || umount /services/userroot/services/config
	# /tmp
	mountpoint -q /services/userroot/tmp || umount /services/userroot/tmp

	mountpoint -q /services/userroot/var/tmp || umount /services/userroot/var/tmp
	# /var/run/mysql/mysqld.sock=
	mountpoint -q /services/userroot/var/run/mysqld || umount /services/userroot/var/run/mysqld
	# /var/run
	mountpoint -q /services/userroot/var/run || umount /services/userroot/var/run
	# /var/spool/exim
	mountpoint -q /services/userroot/var/spool/exim || umount /services/userroot/var/spool/exim
	# /var/log/exim
	mountpoint -q /services/userroot/var/log/exim || umount /services/userroot/var/log/exim
	
	mountpoint -q /services/userroot/usr/local/frontpage || umount /services/userroot/usr/local/frontpage
	mountpoint -q /services/userroot/dev/pts/ptmx || umount /services/userroot/dev/pts/ptmx

	return 0
}
#----------------------------------------------

#
# choose action
#
case "$1" in
  start)
	[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
	do_start
	RETVAL=$? 
	[ "$VERBOSE" != no ] && log_end_msg $RETVAL
	;;
  stop)
	[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
	do_stop
	RETVAL=$? 
	[ "$VERBOSE" != no ] && log_end_msg $RETVAL
	;;
  freeze)
	log_daemon_msg "This package does not support FREEZE" && log_end_msg 1
	exit 1
	;;
  thaw|unfreeze)
	log_daemon_msg "This package does not support THAW" && log_end_msg 1
	exit 1
	;;
  status)
	log_daemon_msg "This package does not support STATUS" && log_end_msg 1
	exit 1
	;;
  reload)
	log_daemon_msg "This package does not support RELOAD" && log_end_msg 1
	exit 1
	;;
  restart|force-reload)
	log_daemon_msg "This package does not support RESTART" && log_end_msg 1
	exit 1
	;;
  *)
	echo "Usage: $0 {start|stop|restart|reload|force-reload|freeze|thaw}" >&2
	exit 3
	;;
esac