#!/bin/sh

set -u

CRYPTOBOX_USER=cryptobox
LOG_FILE=/var/log/cryptobox-server/cryptobox.log
WEBLOG_FILE=/var/log/cryptobox-server/webserver.log
PID_DIR=/var/run/cryptobox-server
SUPER_FILE=/etc/super.tab
MNT_DIR=/var/cache/cryptobox-server/mnt
SETTINGS_DIR=/var/cache/cryptobox-server/settings

remove_super_lines()
{
	## do nothing, if there is no CryptoBox line
	grep -q "CRYPTOBOX_MARKER" "$SUPER_FILE" || return 0
	sed -i /CRYPTOBOX_MARKER/d "$SUPER_FILE"
	sed -i /^CryptoBoxRootActions/d "$SUPER_FILE"
}


umount_all()
{
	test -d "$SETTINGS_DIR" && mountpoint -q "$SETTINGS_DIR" && umount "$SETTINGS_DIR"
	test -d "$MNT_DIR" && ls "$MNT_DIR" | while read dir
	  do	if test -d "$MNT_DIR/$dir"
	  		  then	mountpoint -q "$MNT_DIR/$dir" && umount "$MNT_DIR/$dir"
			 		rm -r "$MNT_DIR/$dir"
			 fi
	 done
}


remove_stuff()
{
	#TODO: remove old log files too (created by logrotate)
	test -e "$LOG_FILE" && rm "$LOG_FILE"
	test -e "$WEBLOG_FILE" && rm "$WEBLOG_FILE"
	test -e "$PID_DIR" && rm -r "$PID_DIR"
	test -e "$SETTINGS_DIR" && rm -r "$SETTINGS_DIR"
}


################## main ###################

# umount everything that is still active
umount_all

# remove the user
if test "$1" = "purge" && getent passwd "$CRYPTOBOX_USER" 2>/dev/null >/dev/null \
	&& test "$(getent passwd $CRYPTOBOX_USER | cut -d : -f 6)" = /var/cache/cryptobox-server
  then	echo "Removing user 'cryptobox' ..."
	userdel -r "$CRYPTOBOX_USER"
 fi

# always remove the lines from the 'super' configuration file
remove_super_lines

# remove obsolete files
test "$1" = "purge" && remove_stuff

#DEBHELPER#

# return without error
true