#!/bin/sh

set -e

nmbd_error_handler() {
    if [ -d /sys/class/net/lo ] && ls /sys/class/net | grep -qv ^lo$; then
        # https://bugs.debian.org/893762
        echo 'WARNING: nmbd failed to start as there is no non-loopback interfaces available.'
        echo 'Either add an interface or set "disable netbios = yes" in smb.conf'
        return 0
    elif command -v ip > /dev/null && ip a show | grep '^[[:space:]]*inet ' | grep -vq ' lo$'; then
        # https://bugs.debian.org/859526
        echo 'WARNING: nmbd failed to start as there is no local IPv4 non-loopback interfaces available.'
        echo 'Either add an IPv4 address or set "disable netbios = yes" in smb.conf'
        return 0
    else
        echo 'ERROR: nmbd failed to start.'
        return 1 # caught by set -e
    fi
}

# We generate several files during the postinst, and we don't want
#	them to be readable only by root.
umask 022

if [ configure = "$1" -a -z "$2" ] # only do this if not upgrading
then
    # add the sambashare group; --force: ok if group already exist
    groupadd --force --system sambashare
    dir=/var/lib/samba/usershares
    [ -d $dir ] || install -d -m 1770 -g sambashare $dir
fi

# in 4.17.4+dfsg-3 we stopped masking services, unmask them here
if [ configure = "$1" ] && dpkg --compare-versions "$2" lt-nl 2:4.17.4+dfsg-3~
then
    for s in nmbd smbd samba-ad-dc; do
	if [ /dev/null = $(realpath /etc/systemd/system/$s.service) ]
	then
	    rm -f /etc/systemd/system/$s.service
	fi
    done
fi

# remove old spool directory (point it to /var/tmp if in use)
if [ configure = "$1" ] && dpkg --compare-versions "$2" lt-nl 2:4.17.4+dfsg-3~
then
    dir=/var/spool/samba
    pat="^(\\s*path\\s*=\\s*)$dir"
    if grep -q -E "$pat\\s*$" /etc/samba/smb.conf ; then
	echo "WARNING: fixing smb.conf, replacing $dir with /var/tmp" >&2
	sed -ri "s|$pat\\s*$|\\1/var/tmp|" /etc/samba/smb.conf
    fi
    if [ -d $dir -a ! -L $dir ]; then
	echo "W: removing old samba print spool $dir" >&2
	rm -rf $dir
    fi
    # we can still have it in an include file (or have a subdir there?)
    if testparm -s 2>/dev/null | grep -E "$pat\\b" >&2; then
	echo "WARNING: $dir is still referenced in smb.conf. Please update smb.conf" >&2
	if [ ! -L $dir ]; then
	    echo "WARNING: redirecting $dir to /var/tmp" >&2
	    ln -s ../tmp $dir
	fi
    fi
fi

# Automatically added by dh_installdeb/13.11.4
dpkg-maintscript-helper rm_conffile /etc/init.d/samba 2:4.6.5\+dfsg-5\~ -- "$@"
dpkg-maintscript-helper rm_conffile /etc/init/nmbd.conf 2:4.6.5\+dfsg-5\~ -- "$@"
dpkg-maintscript-helper rm_conffile /etc/init/reload-smbd.conf 2:4.6.5\+dfsg-5\~ -- "$@"
dpkg-maintscript-helper rm_conffile /etc/init/samba-ad-dc.conf 2:4.6.5\+dfsg-5\~ -- "$@"
dpkg-maintscript-helper rm_conffile /etc/init/smbd.conf 2:4.6.5\+dfsg-5\~ -- "$@"
# End automatically added section
# Automatically added by dh_installinit/13.11.4
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -z "${DPKG_ROOT:-}" ] && [ -x "/etc/init.d/smbd" ]; then
		update-rc.d smbd defaults >/dev/null
		if [ -n "$2" ]; then
			_dh_action=restart
		else
			_dh_action=start
		fi
		invoke-rc.d --skip-systemd-native smbd $_dh_action || exit 1
	fi
fi
# End automatically added section
# Automatically added by dh_installinit/13.11.4
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -z "${DPKG_ROOT:-}" ] && [ -x "/etc/init.d/nmbd" ]; then
		update-rc.d nmbd defaults >/dev/null
		if [ -n "$2" ]; then
			_dh_action=restart
		else
			_dh_action=start
		fi
		invoke-rc.d --skip-systemd-native nmbd $_dh_action || nmbd_error_handler
	fi
fi
# End automatically added section
# Automatically added by dh_installinit/13.11.4
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -z "${DPKG_ROOT:-}" ] && [ -x "/etc/init.d/samba-ad-dc" ]; then
		update-rc.d samba-ad-dc defaults >/dev/null
		if [ -n "$2" ]; then
			_dh_action=restart
		else
			_dh_action=start
		fi
		invoke-rc.d --skip-systemd-native samba-ad-dc $_dh_action || exit 1
	fi
fi
# End automatically added section
# Automatically added by dh_installsystemd/13.11.4
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	# The following line should be removed in trixie or trixie+1
	deb-systemd-helper unmask 'nmbd.service' >/dev/null || true

	# was-enabled defaults to true, so new installations run enable.
	if deb-systemd-helper --quiet was-enabled 'nmbd.service'; then
		# Enables the unit on first installation, creates new
		# symlinks on upgrades if the unit file has changed.
		deb-systemd-helper enable 'nmbd.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 'nmbd.service' >/dev/null || true
	fi
fi
# End automatically added section
# Automatically added by dh_installsystemd/13.11.4
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	# The following line should be removed in trixie or trixie+1
	deb-systemd-helper unmask 'samba-ad-dc.service' >/dev/null || true

	# was-enabled defaults to true, so new installations run enable.
	if deb-systemd-helper --quiet was-enabled 'samba-ad-dc.service'; then
		# Enables the unit on first installation, creates new
		# symlinks on upgrades if the unit file has changed.
		deb-systemd-helper enable 'samba-ad-dc.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 'samba-ad-dc.service' >/dev/null || true
	fi
fi
# End automatically added section
# Automatically added by dh_installsystemd/13.11.4
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	# The following line should be removed in trixie or trixie+1
	deb-systemd-helper unmask 'smbd.service' >/dev/null || true

	# was-enabled defaults to true, so new installations run enable.
	if deb-systemd-helper --quiet was-enabled 'smbd.service'; then
		# Enables the unit on first installation, creates new
		# symlinks on upgrades if the unit file has changed.
		deb-systemd-helper enable 'smbd.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 'smbd.service' >/dev/null || true
	fi
fi
# End automatically added section
# Automatically added by dh_installsystemd/13.11.4
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -d /run/systemd/system ]; then
		systemctl --system daemon-reload >/dev/null || true
		if [ -n "$2" ]; then
			_dh_action=restart
		else
			_dh_action=start
		fi
		deb-systemd-invoke $_dh_action 'nmbd.service' 'samba-ad-dc.service' 'smbd.service' >/dev/null || true
	fi
fi
# End automatically added section


# remove msg.sock/ directory (moved to /run/samba/)
dir=/var/lib/samba/private/msg.sock
if [ -d $dir -a configure = "$1" ] &&
   dpkg --compare-versions "$2" lt-nl 2:4.16.0+dfsg-7~
then
    rm -f $dir/*
    rmdir $dir
fi

exit 0