#!/bin/sh
#
# $Id: samba-common.postinst,v 1.2 2003/06/01 07:12:51 peloy Exp $
#

set -e

# Do debconf stuff here
. /usr/share/debconf/confmodule

# We need a default smb.conf file. If one doesn't exist we put in place
#	one that has some basic defaults.
if [ ! -e /etc/samba/smb.conf ]; then
	cp -a /usr/share/samba/smb.conf /etc/samba/
fi

# Static tempfile location, dpkg-style
TMPFILE=/etc/samba/smb.conf.dpkg-tmp

# ------------------------- Debconf questions start ---------------------

# Is the user configuring with debconf, or he/she prefers swat/manual
#	config?
db_get samba-common/do_debconf || true
if [ "${RET}" = "true" ]; then
	# Get workgroup name
	db_get samba-common/workgroup || true
	WORKGROUP="${RET}"

	# Oh my GOD, this is ugly.  Why would anyone put these
	# characters in a workgroup name?  Why, Lord, why???
	WORKGROUP=`echo $WORKGROUP | \
	           sed -e's/\\\\/\\\\\\\\/g
	                  s#/#\\\\/#g
	                  s/&/\\\&/g
	                  s/\\\$/\\\\\\\$/g'`

	sed -e "s/^\([[:space:]]*\)\[global\]/\1\[global\]/i
		/^[[:space:]]*\[global\]/,/^[[:space:]]*\[/ \
			s/^\([[:space:]]*\)workgroup[[:space:]]*=.*/\1workgroup = ${WORKGROUP}/i" \
		< /etc/samba/smb.conf >${TMPFILE}
	mv -f ${TMPFILE} /etc/samba/smb.conf

	# Encrypt passwords?
	db_get samba-common/encrypt_passwords || true
	ENCRYPT_PASSWORDS="${RET}"

	sed -e "s/^\([[:space:]]*\)\[global\]/\1\[global\]/i
		/^[[:space:]]*\[global\]/,/^[[:space:]]*\[/ \
		        s/^\([[:space:]]*\)encrypt passwords[[:space:]]*=.*/\1encrypt passwords = ${ENCRYPT_PASSWORDS}/i" \
		< /etc/samba/smb.conf >${TMPFILE}
	mv -f ${TMPFILE} /etc/samba/smb.conf

	# Install DHCP support
	db_get samba-common/dhcp && DHCPVAL="$RET"
	db_fget samba-common/dhcp applied || true
	if [ "$DHCPVAL" = true ] && [ "$RET" != true ] && \
	   ! grep -q dhcp.conf /etc/samba/smb.conf
	then
		sed -e "s/^\([[:space:]]*\)\[global\]/\1\[global\]/i
			/^[[:space:]]*\[global\]/,/^[[:space:]]*\[/ {
				/wins server[[:space:]]*=/a \\
\\
# If we receive WINS server info from DHCP, override the options above. \\
   include = /etc/samba/dhcp.conf
}" < /etc/samba/smb.conf > ${TMPFILE}
		mv -f ${TMPFILE} /etc/samba/smb.conf
	elif [ "$RET" != true ] && grep -q dhcp.conf /etc/samba/smb.conf
	then
		:
		# FIXME: here we /delete/ the lines?
	fi
	# Once we get here, the config has been applied, whatever
	# it is.
	if [ "$RET" != true ]; then
		db_fset samba-common/dhcp applied true
	fi

	# Update charset settings?
	if ! grep -q "^[[:space:]]*unix charset[[:space:]]*=" /etc/samba/smb.conf
	then
		db_get samba-common/character_set || true
		DISPLAYCHARSET="${RET}"
		if [ -n "$DISPLAYCHARSET" ]
		then
			sed -e "s/^\([[:space:]]*\)\[global\]/\1\[global\]/i
				s/^\([[:space:]]*\)character set/\1character set/i
				/^[[:space:]]*\[global\]/,/^[[:space:]]*\[/ {
					/^[[:space:]]*character set[[:space:]]*=/c \\
   display charset = $DISPLAYCHARSET\\
   unix charset = $DISPLAYCHARSET
				}" < /etc/samba/smb.conf > ${TMPFILE}
			mv -f ${TMPFILE} /etc/samba/smb.conf
		fi
	fi

	if grep -qi "^[[:space:]]*passdb backend[[:space:]]*=.*unixsam" /etc/samba/smb.conf
	then
		sed -e 's/^\([[:space:]]*\)passdb backend/\1passdb backend/i
			/^[[:space:]]*passdb backend/ {
				s/unixsam/guest/i
			}' < /etc/samba/smb.conf > ${TMPFILE}
		mv -f ${TMPFILE} /etc/samba/smb.conf
	fi

	if ! grep -q "^[[:space:]]*dos charset[[:space:]]*=" /etc/samba/smb.conf
	then
		db_get samba-common/codepage || true
		DOSCHARSET="${RET}"
		if [ -n "$DOSCHARSET" ]
		then
			sed -e "s/^\([[:space:]]*\)\[global\]/\1\[global\]/i
				s/^\([[:space:]]*\)client code page/\1client code page/i
				/^[[:space:]]*\[global\]/,/^[[:space:]]*\[/ {
					/^[[:space:]]*client code page[[:space:]]*=/c \\
   dos charset = $DOSCHARSET
}" < /etc/samba/smb.conf > ${TMPFILE}
			mv -f ${TMPFILE} /etc/samba/smb.conf
		fi
	fi

	if dpkg --compare-versions "$2" lt 2.999+3.0.alpha20-4 \
	   && ! grep -q "^[[:space:]]*panic action[[:space:]]*=" /etc/samba/smb.conf
	then
		sed -e "s/^\([[:space:]]*\)\[global\]/\1\[global\]/i
			/^[[:space:]]*\[global\]/a \\
\\
# Do something sensible when Samba crashes: mail the admin a backtrace\\
   panic action = /usr/share/samba/panic-action %d" < /etc/samba/smb.conf > ${TMPFILE}
		mv -f ${TMPFILE} /etc/samba/smb.conf
	fi

fi

chmod a+r /etc/samba/smb.conf

# ------------------------- Debconf questions end ---------------------

db_stop

#DEBHELPER#