Import Debian changes 4.92-8+deb10u3

[hcoop/debian/exim4.git] / debian / exim4-config.config

#!/bin/sh
set -e

alias stripwhitespace="sed -e 's/^[[:blank:]]*//' -e 's/[[:blank:]]*$//'"

installeddebconfversion="$(dpkg -s debconf | sed -ne '/^Version/s/^Version: //p')"
if [ "reconfigure" != "$1" ] && \
	dpkg --compare-versions "${installeddebconfversion}" "le" "1.4" && \
	[ "$exim4postinstisrunning" != "true" ] ; then
	echo "exim4-config.postinst: [WARN] Installed debconf version is broken. Aborting preconfigure." 1>&2
	exit 0
fi

. /usr/share/debconf/confmodule

if [ -n "$EX4DEBUG" ]; then
  echo "now debugging $0 $@"
  set -x
fi

UE4CC="/etc/exim4/update-exim4.conf.conf"

convert_to_long ()
{
	case "$1" in
	internet)
		echo -n "internet site; mail is sent and received directly using SMTP"
		;;
	smarthost)
		echo -n "mail sent by smarthost; received via SMTP or fetchmail"
		;;
	satellite)
		echo -n "mail sent by smarthost; no local mail"
		;;
	local)
		echo -n "local delivery only; not on a network"
		;;
	none)
		echo -n "no configuration at this time"
		;;
	esac
}
convert_to_short ()
{
	case "$1" in
	"internet site; mail is sent and received directly using SMTP")
		echo -n "internet"
		;;
	"mail sent by smarthost; received via SMTP or fetchmail")
		echo -n	"smarthost"
		;;
	"mail sent by smarthost; no local mail")
		echo -n	"satellite"
		;;
	"local delivery only; not on a network")
		echo -n	"local"
		;;
	"no configuration at this time")
		echo -n	"none"
		;;
	esac
}

convert_transport_to_long ()
{
	case "$1" in
	maildir_home)
		echo -n "Maildir format in home directory"
		;;
	mail_spool)
		echo -n "mbox format in /var/mail/"
		;;
	*)
		echo -n "locally customized"
		;;
	esac
}
convert_transport_to_short ()
{
	case "$1" in
	"Maildir format in home directory")
		echo -n "maildir_home"
		;;
	"mbox format in /var/mail/")
		echo -n "mail_spool"
		;;
	*)
		echo -n "custom"
		;;
	esac
}

# store environment variables in debconf db.
storevar2db() {
	dc_eximconfig_configtype="$(printf '%s\n' "${dc_eximconfig_configtype}" | stripwhitespace)"
	dc_local_interfaces="$(printf '%s\n' "${dc_local_interfaces}" | stripwhitespace)"
	dc_other_hostnames="$(printf '%s\n' "${dc_other_hostnames}" | stripwhitespace)"
	dc_readhost="$(printf '%s\n' "${dc_readhost}" | stripwhitespace)"
	dc_relay_domains="$(printf '%s\n' "${dc_relay_domains}" | stripwhitespace)"
	dc_relay_nets="$(printf '%s\n' "${dc_relay_nets}" | stripwhitespace)"
	dc_smarthost="$(printf '%s\n' "${dc_smarthost}" | stripwhitespace)"
	dc_minimaldns="$(printf '%s\n' "${dc_minimaldns}" | stripwhitespace)"
	dc_use_split_config="$(printf '%s\n' "${dc_use_split_config}" | stripwhitespace)"
	dc_hide_mailname="$(printf '%s\n' "${dc_hide_mailname}" | stripwhitespace)"
	# store externally changed values to debconf.db
	db_set exim4/dc_eximconfig_configtype \
		"$(convert_to_long ${dc_eximconfig_configtype})"
	db_set exim4/dc_local_interfaces "${dc_local_interfaces}"
	db_set exim4/dc_other_hostnames "${dc_other_hostnames}"
	db_set exim4/dc_readhost "${dc_readhost}"
	db_set exim4/dc_relay_domains "${dc_relay_domains}"
	db_set exim4/dc_relay_nets "${dc_relay_nets}"
	db_set exim4/dc_smarthost "${dc_smarthost}"
	if [ "${dc_minimaldns}" != "" ]; then
		db_set exim4/dc_minimaldns "${dc_minimaldns}"
	fi
	db_set exim4/use_split_config "${dc_use_split_config}"
	db_set exim4/hide_mailname "${dc_hide_mailname}"
	# do not store "locally customized" in debconf db, otherwise simply
	# removing the custom dc_localdelivery from ue4cc won't work.
	if [ "${dc_localdelivery}" != "" ] &&
		[ "$(convert_transport_to_long ${dc_localdelivery})" != "locally customized" ] ; then
		db_set exim4/dc_localdelivery \
			"$(convert_transport_to_long ${dc_localdelivery})"
	fi
	db_fset "exim4/dc_other_hostnames" mailname "${dc_mailname_in_oh}"
}

# ipv6: replace double colons in colon-separated host lists with umlaut-o
# replace ':' with ' : ', add leading and ending whitespace.
# return empty string if custom delimiter was used:
	#    local_domains = <; 172.16.0.0/12; 3ffe:ffff:836f::/48
# e.g: 'localhost : 172.16.0.1 :3ffe::ffff::836f::::: foo.org'