postinst

#!/bin/sh
#
# postinst script for pdns-server

set -e

if [ -n "$PDNSDEBUG" ]; then
  echo "now debugging $0 $@"
  set -x
fi

PKGNAME="pdns-server"

PDNSCONF=/etc/powerdns/pdns.conf
PDNSDEFAULT=/etc/default/pdns
PDNSDIR=/etc/powerdns/pdns.d
PDNSLOCAL=$PDNSDIR/pdns.local.conf

# Temporary files
PDNSCONFTEMP=`mktemp`
PDNSLOCALTEMP=`mktemp`
PDNSDEFAULTTEMP=`mktemp`

# rename ucf-conffile. This was mostly stolen from cacti.postinst after
# a short discussion on debian-mentors, see
# http://lists.debian.org/debian-mentors/2013/07/msg00027.html
# and the following thread. Thanks to Paul Gevers
renameconffile() {
  oldname="$1"
  newname="$2"
  sourcefile="$3"
  if [ -f $oldname ] ; then
    if [ ! -e $newname ] ; then
      mv $oldname $newname
#   else: Don't do anything, leave old file in place
    fi
    ucf --purge $oldname
    ucfr --purge $PKGNAME $oldname
  elif [ ! -e $newname ] ; then
#   The file was removed, we should respect that. Unfortunately, we don't
#   have a proper way to tell ucf that for the new location, so we need
#   to hack it a bit.
#   We only need to do this if the target does not already exist. If the
#   target already exists, we can later call ucf straight as there
#   is already a version of the file available, althought never
#   provided by this package, but we can just propose the new file anyway.
    ucf $sourcefile $newname
    ucfr $PKGNAME $newname
    rm -f $newname
  fi
}


case "$1" in
  configure)
    if [ -z "`getent group pdns`" ]; then
      addgroup --quiet --system pdns
    fi
    if [ -z "`getent passwd pdns`" ]; then
      echo -n "Creating user and group pdns..."
      adduser --quiet --system --home /var/spool/powerdns --shell /bin/false --ingroup pdns --disabled-password --disabled-login --gecos "PowerDNS" pdns
      echo "done"
    fi

    # this can be removed once we do not have to update from
    # wheezy (pdns 3.1) any more. Note: there was never pdns 3.2 in Debian
    if [ -n "$2" ] && dpkg --compare-versions "$2" lt 3.3; then
      renameconffile $PDNSDIR/pdns.local $PDNSDIR/pdns.local.conf $PDNSLOCALTEMP
      renameconffile $PDNSDIR/pdns.simplebind $PDNSDIR/pdns.simplebind.conf /usr/share/pdns-server/pdns.simplebind.conf
    fi

    # register configuration files with ucf
    ucfr $PKGNAME $PDNSCONF
    ucfr $PKGNAME $PDNSDEFAULT
    ucfr $PKGNAME $PDNSLOCAL
    ucfr $PKGNAME $PDNSDIR/pdns.simplebind.conf


    # Install the new configuration files if the user wants it.
    ucf /usr/share/pdns-server/pdns.conf $PDNSCONF
    ucf /usr/share/pdns-server/pdns $PDNSDEFAULT
    ucf /usr/share/pdns-server/pdns.local.conf $PDNSLOCAL
    ucf /usr/share/pdns-server/pdns.simplebind.conf $PDNSDIR/pdns.simplebind.conf


    # There could be passwords in these files. PowerDNS first reads the
    # configuration files and then drop root privileges.
    if [ -z "$2" ]; then
      [ -e $PDNSCONF ] && chmod 0600 $PDNSCONF
      [ -e $PDNSLOCAL ] && chmod 0600 $PDNSLOCAL
      [ -d $PDNSDIR ] && chmod 0755 $PDNSDIR
      [ -e $PDNSDEFAULT ] && chmod 0644 $PDNSDEFAULT
    fi

    # If we still have the default config, make sure bindbackend.conf exists
    PDNSBIND="/etc/powerdns/pdns.d/pdns.simplebind.conf"
    PDNSBINDBACKENDCONF="/etc/powerdns/bindbackend.conf"
    if [ -e "$PDNSBIND" ]; then
      if grep -q "^bind-config=$PDNSBINDBACKENDCONF$" $PDNSBIND; then
        touch $PDNSBINDBACKENDCONF
      fi
    fi

  ;;

  triggered)
    invoke-rc.d pdns restart || exit $?
  ;;

  abort-upgrade|abort-remove|abort-deconfigure)
  ;;

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

# Recover from incorrect init.d script headers in version 2.9.22-1 and earlier
if [ "$1" = "configure" ] && dpkg --compare-versions "$2" le "2.9.22-1" \
	&& [ -f /etc/rc0.d/K[0-9][0-9]pdns ] \
	&& ! [ -f /etc/rc1.d/K[0-9][0-9]pdns ]; then
  update-rc.d -f pdns remove
fi

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

# Automatically added by dh_systemd_enable
# This will only remove masks created by d-s-h on package removal.
deb-systemd-helper unmask pdns.service >/dev/null || true

# was-enabled defaults to true, so new installations run enable.
if deb-systemd-helper --quiet was-enabled pdns.service; then
	# Enables the unit on first installation, creates new
	# symlinks on upgrades if the unit file has changed.
	deb-systemd-helper enable pdns.service >/dev/null || true
else
	# Update the statefile to add new symlinks (if any), which need to be
	# cleaned up on purge. Also remove old symlinks.
	deb-systemd-helper update-state pdns.service >/dev/null || true
fi
# End automatically added section
# Automatically added by dh_installinit
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ]; then
	if [ -x "/etc/init.d/pdns" ]; then
		update-rc.d pdns defaults >/dev/null
	fi
	if [ -x "/etc/init.d/pdns" ] || [ -e "/etc/init/pdns.conf" ]; then
		invoke-rc.d pdns start || exit $?
	fi
fi
# End automatically added section


exit 0
pdns-server 4.0.0~alpha2-3build1 / postinst
