#!/bin/sh

set -e

[ "$DEBIAN_SCRIPT_DEBUG" ] && set -vx

case "$1" in
  configure)
    # continue below
  ;;

  abort-upgrade|abort-remove|abort-deconfigure)
    exit 0
  ;;

  *)
    echo "postinst called with unknown argument \`$1'" >&2
    exit 0
  ;;
esac

PATH=/bin:/usr/bin:/sbin:/usr/sbin
export PATH

. /usr/share/amavisd-cn/version.sh
. /usr/share/carnet-tools/functions.sh
. /usr/share/amavisd-cn/variables.sh
. /usr/share/amavisd-cn/functions.sh

mta=postfix
. /usr/share/amavisd-cn/postfix.sh

# $domain will be equal to $host if nothing better can be found
cp_get_mx_domain
domain=$RET

update_postfix $*

# amavisd.conf
if [ -f "$ACONFOLD" ]; then
  cp_echo "CN: Amavisd configuration is now in $ACONF."
  noisy_backup "$ACONFOLD"
  rm -f "$ACONFOLD"
  cp_echo ""
  cp_echo "CN: Please read /usr/share/doc/amavisd-cn/README.CARNet."
elif [ -f "$ACONFOLD.disabled" ]; then
  noisy_backup "$ACONFOLD.disabled" "$(basename $ACONFOLD)"
  rm -f "$ACONFOLD.disabled"
  cp_echo "CN: Please read /usr/share/doc/amavisd-cn/README.CARNet."
fi

if [ -f $ACONF ]; then
  # add other fixups to function update_conf(), way above
  update_conf $*
fi
# nonexistent or empty config
if [ ! -f $ACONF -o ! -s $ACONF ]; then
  # Create fresh config from template
  conf_from_template
  restart_daemon=1
fi

# disable SAVI as proven problematic
if cp_check_and_sed "^[[:blank:]]*\['Sophos SAVI'" \
 "s/^[[:blank:]]*\(\['Sophos SAVI', ..sophos_savi \]\)/#\1/" $ACONF; then
  cp_echo "CN: Disabled SAVI::Perl usage in ${ACONF}."
  restart_daemon=1
fi

check_and_add_alias virusalert root
check_and_add_alias spamalert root

# ovo je rijeseno u spamassassin-cn, i ovdje nije potrebno, stoga brisemo
if [ -f $AHOME/.spamassassin/user_prefs ] ; then
  user_prefs_temp=$(mktemp /tmp/user_prefs.XXXXXX)
  cat > $user_prefs_temp <<-EEND
	bayes_path		$AHOME/.spamassassin/bayes
	bayes_auto_expire	0
	auto_whitelist_path	$AHOME/.spamassassin/auto-whitelist
	EEND
  if cmp -s $user_prefs_temp $AHOME/.spamassassin/user_prefs; then
    rm -f $AHOME/.spamassassin/user_prefs
  fi
  rm -f $user_prefs_temp
fi

# No sysvinit order fixes
:

# Fix missing redirection in cron files for amavisd-new-cronjob
add_redirection /etc/cron.d/amavisd-new /etc/cron.daily/amavisd-new

# Cleanup and finalization
if dpkg --compare-versions "$2" lt 2:20030616p10-4; then
  update-rc.d -f amavisd remove > /dev/null
  restart_daemon=1
  chown_ahome=1
  # a complicated way to say chmod 750
  dpkg-statoverride --remove $AHOME > /dev/null || true
  dpkg-statoverride --update --add amavis amavis 750 $AHOME
fi

if [ -n "$chown_ahome" ]; then
  # might be slow
  echo -n "CN: Fixing ownership in /var/*/amavis... "
  chown -R amavis:amavis $AHOME /var/run/amavis || true
  echo "done."
  cp_echo -mailonly "CN: Fixed ownerships in /var/*/amavis."
fi

# kill naughty pyzor descendants -- XXX needed for 2.4 or not?
if dpkg --compare-versions "$2" lt 2:20030616p10-7 && \
    pgrep -u amavis -f '/usr/bin/pyzor check' > /dev/null; then
  /etc/init.d/amavisd-cn stop
  pkill -9 -u amavis -f '/usr/bin/pyzor check' > /dev/null || true
  /etc/init.d/amavisd-cn start
  restart_daemon=
  restart_mta=
fi

# START AMAVISD
# about a half of amavisd-cn script is here
if [ "$restart_daemon" -a -x /etc/init.d/amavis.amavisd-new ]; then
  /etc/init.d/amavis.amavisd-new restart
fi
# always check that the daemons are running
if ! wait_for_fds amavis; then
  /etc/init.d/amavis.amavisd-new start
  wait_for_fds amavis
fi
if [ "$restart_mta" ]; then
  /etc/init.d/$mta restart
fi

# this needs to be updated when $CRONTAB file changes
if dpkg --compare-versions "$2" lt "2:20030616p10-4"; then
  cp_echo ""
  cp_echo "CN: Deleting temp files older than 1 day every day at 01:35 AM"
  cp_echo "CN: Deleting spam-mail  older than 7 days every day at 03:15 AM"
  cp_echo "CN: Deleting virus-mail older than 7 days every day at 04:25 AM"
  cp_echo "    (can be changed in $CRONTAB)"
fi
# This script is, hopefully, not needed any more.  Hide it.
## display this message just once... maybe use debconf instead
#if dpkg --compare-versions "$2" lt "2:20030616p10-4"; then
#  cp_echo ""
#  cp_echo "CN: To stop, start or restart all of the clamav+amavis+mta components,"
#  cp_echo "CN: use the /etc/init.d/amavisd-cn script."
#fi
if [ "$failed" ]; then
  cp_echo ""
  cp_echo "CN: Services $failed failed to restart!"
  cp_echo "CN: Please check and start manually if needed."
fi

# Upgrade, but no automatically changed config;
# warn if new template available
if [ -n "$2" -a -z "$changed_config" ] && \
   dpkg --compare-versions "$2" lt "$TMPLVERSION"; then
  cp_echo ""
  cp_echo "CN: It seems you have upgraded this package from version $2."
  cp_echo "CN: Configuration template for $mta was modified in version ${TMPLVERSION}."
  cp_echo "    You might want to review the changes, or simply copy the new template and"
  cp_echo "    and replace the _CN_DOMAIN_ string with an adequate value:"
  cp_echo "    cp $ACONFTMPL $ACONF"
  cp_echo "    perl -pi -e 's/_CN_DOMAIN_/$domain/g' $ACONF"
fi

cp_mail $PKG $VERSION