#!/bin/sh
# This script can be called in the following ways:
#
# After the package was installed:
#       <postinst> configure <old-version>
#
#
# If prerm fails during upgrade or fails on failed upgrade:
#       <old-postinst> abort-upgrade <new-version>
#
# If prerm fails during deconfiguration of a package:
#       <postinst> abort-deconfigure in-favour <new-package> <version>
#                  removing <old-package> <version>
#
# If prerm fails during replacement due to conflict:
#       <postinst> abort-remove in-favour <new-package> <version>

. /usr/share/debconf/confmodule

set -e

case "$1" in
    configure)
	# Rename old "mandos" user and group
	if dpkg --compare-versions "$2" lt "1.0.3-1"; then
	    case "`getent passwd mandos`" in
		*:Mandos\ password\ system,,,:/nonexistent:/bin/false)
		    usermod --login _mandos mandos
		    groupmod --new-name _mandos mandos
		    # Reload D-Bus daemon to be aware of the _mandos
		    # user & group
		    if [ -x /etc/init.d/dbus ]; then
			invoke-rc.d dbus force-reload || :
		    fi
		    ;;
	    esac
	fi
	# Create new user and group
	if ! getent passwd _mandos >/dev/null; then
	    adduser --system --force-badname --quiet \
		--home /nonexistent --no-create-home --group \
		--disabled-password --gecos "Mandos password system" \
		_mandos
	    # Reload D-Bus daemon to be aware of the _mandos user &
	    # group
	    if [ -x /etc/init.d/dbus ]; then
		invoke-rc.d dbus force-reload || :
	    fi
	elif dpkg --compare-versions "$2" eq 1.7.4-1 \
		|| dpkg --compare-versions "$2" eq "1.7.4-1~bpo8+1"
	then
	    start=no
	    if ! [ -f /var/lib/mandos/clients.pickle ]; then
		invoke-rc.d mandos stop
		start=yes
	    fi
	    chown _mandos:_mandos /var/lib/mandos/clients.pickle \
		  2>/dev/null || :
	    if [ "$start" = yes ]; then
		invoke-rc.d mandos start
	    fi
	fi
	if ! dpkg-statoverride --list "/var/lib/mandos" >/dev/null \
	     2>&1; then
	    chown _mandos:_mandos /var/lib/mandos
	    chmod u=rwx,go= /var/lib/mandos
	fi

	if dpkg --compare-versions "$2" eq "1.8.0-1" \
		|| dpkg --compare-versions "$2" eq "1.8.0-1~bpo9+1"; then
	    if grep --quiet --regexp='^[[:space:]]*key_id[[:space:]]*=[[:space:]]*[Ee]3[Bb]0[Cc]44298[Ff][Cc]1[Cc]149[Aa][Ff][Bb][Ff]4[Cc]8996[Ff][Bb]92427[Aa][Ee]41[Ee]4649[Bb]934[Cc][Aa]495991[Bb]7852[Bb]855[[:space:]]*$' /etc/mandos/clients.conf; then
		sed --in-place \
		    --expression='/^[[:space:]]*key_id[[:space:]]*=[[:space:]]*[Ee]3[Bb]0[Cc]44298[Ff][Cc]1[Cc]149[Aa][Ff][Bb][Ff]4[Cc]8996[Ff][Bb]92427[Aa][Ee]41[Ee]4649[Bb]934[Cc][Aa]495991[Bb]7852[Bb]855[[:space:]]*$/d' \
		    /etc/mandos/clients.conf
		invoke-rc.d mandos restart
		db_version 2.0
		db_fset mandos/removed_bad_key_ids seen false
		db_reset mandos/removed_bad_key_ids
		db_input critical mandos/removed_bad_key_ids || true
		db_go
		db_stop
	    fi
	fi

	gnutls_version=$(dpkg-query --showformat='${Version}' \
				    --show libgnutls30 \
				    2>/dev/null || :)
	if [ -n "$gnutls_version" ] \
	       && dpkg --compare-versions $gnutls_version ge 3.6.6; then
	    db_version 2.0
	    db_input critical mandos/key_id || true
	    db_go
	    db_stop
	fi
	;;
    
    abort-upgrade|abort-deconfigure|abort-remove)
	;;
    
    *)
	echo "$0 called with unknown argument '$1'" 1>&2
	exit 1
	;;
esac

# Avahi version 0.6.31-2 and older provides "avahi" (instead of
# "avahi-daemon") in its /etc/init.d script header.  To make
# insserv(8) happy, we edit our /etc/init.d script header to contain
# the correct string before the code added by dh_installinit calls
# update.rc-d, which calls insserv.
avahi_version="`dpkg-query --showformat='${Version}' --show avahi-daemon`"
if dpkg --compare-versions "$avahi_version" le 0.6.31-2; then
    sed --in-place --expression='/^### BEGIN INIT INFO$/,/^### END INIT INFO$/s/^\(# Required-\(Stop\|Start\):.*avahi\)-daemon\>/\1/g' /etc/init.d/mandos
fi

# Automatically added by dh_installinit/13.15.3
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -x "$(command -v systemd-tmpfiles)" ]; then
		systemd-tmpfiles ${DPKG_ROOT:+--root="$DPKG_ROOT"} --create mandos.conf || true
	fi
fi
# End automatically added section
# Automatically added by dh_installinit/13.15.3
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -z "${DPKG_ROOT:-}" ] && [ -x "/etc/init.d/mandos" ]; then
		update-rc.d mandos defaults 25 15 >/dev/null
		if [ -n "$2" ]; then
			_dh_action=restart
		else
			_dh_action=start
		fi
		invoke-rc.d mandos $_dh_action || exit 1
	fi
fi
# End automatically added section


exit 0