#!/bin/sh
# preinst script for freeside
#
# see: dh_installdeb(1)

set -e

# summary of how this script can be called:
#        * <new-preinst> `install'
#        * <new-preinst> `install' <old-version>
#        * <new-preinst> `upgrade' <old-version>
#        * <old-preinst> `abort-upgrade' <new-version>
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package


case "$1" in
    install|upgrade)

       # If the package has default file it could be sourced, so that
       # the local admin can overwrite the defaults
     
       [ -f "/etc/default/freeside" ] && . /etc/default/freeside
     
       # Sane defaults:
     
       [ -z "$FREESIDE_HOME" ] && FREESIDE_HOME=/home/freeside
       [ -z "$FREESIDE_USER" ] && FREESIDE_USER=freeside
       [ -z "$FREESIDE_NAME"   ] && FREESIDE_NAME="Freeside"
       [ -z "$FREESIDE_GROUP"  ] && FREESIDE_GROUP=freeside

       [ -z "$RT_GROUP"  ] && RT_GROUP=rt
     
       # Groups that the user will be added to, if undefined, then none.
       ADDGROUP="rt"
     
       # create user to avoid running server as root
       # 1. create group if not existing
       if ! getent group | grep -q "^$FREESIDE_GROUP:" -; then
          echo -n "Adding group $FREESIDE_GROUP.."
          addgroup --quiet --system $FREESIDE_GROUP 2>/dev/null ||true
          echo "..done"
       fi
       if ! getent group | grep -q "^$RT_GROUP:" -; then
          echo -n "Adding group $RT_GROUP.."
          addgroup --quiet --system $RT_GROUP 2>/dev/null ||true
          echo "..done"
       fi
       # 2. create homedir if not existing
       test -d $FREESIDE_HOME || mkdir $FREESIDE_HOME
       # 3. create user if not existing
       if ! getent passwd | grep -q "^$FREESIDE_USER:" -; then
         echo -n "Adding system user $FREESIDE_USER.."
         adduser --quiet \
                 --system \
                 --ingroup $FREESIDE_GROUP \
                 --shell /bin/sh \
                 --no-create-home \
                 --disabled-password \
                 $FREESIDE_USER 2>/dev/null || true
         echo "..done"
       fi
       # 4. adjust passwd entry
       usermod -c "$FREESIDE_NAME" \
               -d $FREESIDE_HOME   \
               -g $FREESIDE_GROUP  \
                  $FREESIDE_USER
       # 5. adjust file and directory permissions
       if ! dpkg-statoverride --list $FREESIDE_HOME >/dev/null
       then
           chown -R $FREESIDE_USER:adm $FREESIDE_HOME
           chmod u=rwx,g=rxs,o= $FREESIDE_HOME
       fi
       # 6. Add the user to the ADDGROUP group
       if test -n $ADDGROUP
       then
           if ! groups $FREESIDE_USER | cut -d: -f2 | \
              grep -qw $ADDGROUP -; then
                adduser $FREESIDE_USER $ADDGROUP
           fi
       fi
    ;;

    abort-upgrade)
    ;;

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

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

#DEBHELPER#

exit 0