#!/bin/sh
# postrm script for rspamd

set -e

case "$1" in
  purge|remove|abort-install|disappear)
    # find first and last SYSTEM_UID numbers
    for LINE in `grep SYSTEM_UID /etc/adduser.conf | grep -v "^#"`
    do
      case $LINE in
        FIRST_SYSTEM_UID*)
          FIRST_SYSTEM_UID=`echo $LINE | cut -f2 -d '='`
        ;;
        LAST_SYSTEM_UID*)
          LAST_SYSTEM_UID=`echo $LINE | cut -f2 -d '='`
        ;;
        *)
        ;;
      esac
    done
    # Remove system account if necessary
    CREATEDUSER="rspamd"
    if [ -n "$FIRST_SYSTEM_UID" ] && [ -n "$LAST_SYSTEM_UID" ]
    then
      if USERID=`getent passwd $CREATEDUSER | cut -f 3 -d ':'`
      then
        if [ -n "$USERID" ]
        then
          if [ "$FIRST_SYSTEM_UID" -le "$USERID" ] && [ "$USERID" -le "$LAST_SYSTEM_UID" ]
	  then
            echo -n "Removing $CREATEDUSER system user.."
            deluser --quiet $CREATEDUSER || true
            echo "..done"
          fi
        fi
      fi
    fi
    # Remove system group if necessary
    CREATEDGROUP="rspamd"
    FIRST_USER_GID=`grep ^USERS_GID /etc/adduser.conf | cut -f2 -d '='`
    if [ -n "$FIRST_USER_GID" ]
    then
      if GROUPGID=`getent group $CREATEDGROUP | cut -f 3 -d ':'`
      then
        if [ -n "$GROUPGID" ]
        then
          if [ "$FIRST_USER_GID" -gt "$GROUPGID" ]
	  then
            echo -n "Removing $CREATEDGROUP group.."
            delgroup --only-if-empty $CREATEDGROUP || true
            echo "..done"
          fi
        fi
      fi
    fi
  ;;

  upgrade|failed-upgrade|abort-upgrade)
  ;;

  *)
    echo "postrm called with unknown argument \`$1'" >&2
    exit 1
  ;;
esac

exit 0