#!/bin/bash

VERSION=2002011801

### NPRINT CUPS backend
### Copyright (C) 2001 Mark J. Horn <mark at hornclan dot com>
###
### This program is free software; you can redistribute it and/or
### modify it under the terms of the GNU General Public License
### as published by the Free Software Foundation; either version 2
### of the License, or (at your option) any later version.
### 
### This program is distributed in the hope that it will be useful,
### but WITHOUT ANY WARRANTY; without even the implied warranty of
### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
### GNU General Public License for more details.
### 
### You should have received a copy of the GNU General Public License
### along with this program; if not, write to the Free Software
### Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
###
### A copy of the GNU General Public License is available at: 
### http://www.gnu.org/licenses/gpl.txt

### INSTALLATION
### ------------
### To use this script, copy it into your CUPS backends directory, which
### might be in /usr/lib/cups/backends or /usr/local/lib/cups/backends.
### Make sure that the script is executable by whatever id cupsd runs
### with, and then restart CUPS.
### 
### In order for CUPS to detect your novell printers at boot time you
### will have to have correctly configured ipx in your kernel, and CUPS
### must start *after* your network interface card is up.  
### 
### As root, you must be able run "pqlist" and get a list of the
### printers on your server.  The "pqlist" program uses ~root/.nwclient
### as a mechinism for determining the default novell server to use.
### This file must be properly configured in order for this backend to
### detect and use novell printers.  Currently this script will only
### enable printing to print queue's on a single server.  If anyone
### has any ideas on how to support more than one server, please let
### me know.
### 
### You should then be able to configure printers in CUPS with the
### devices you've configured.  I have only been able to configure
### devices with the CUPS web interface.
###
### This single script can be used to support multiple devices.  However,
### at this point it can only support access to one print server.
### This is due to the inability of pqlist to enumerate more than a
### single server's printers at a time.  If anyone has any ideas on how
### I might make printing to multiple servers function, I'd be glad to
### hear them.
### 
### DEPENDANCIES
### ------------
### This script is dependant upon builtin commands in bash.  It has not
### been tested against other non-bash shells.  I don't expect that
### it will work with them.  You are invited to test other shells.
### Please let me know if you have any success.
### 
### This script depends on correctly installed ncpfs software 
### available at: ftp://platan.vc.cvut.cz/pub/linux/ncpfs/
###
### This script depends on the following programs being in the PATH
###   pqlist, nprint, basename, cat
### If these commands are not in /bin, /usr/bin, or /usr/local/bin on
### your computer, set PATH below to include where they are located.

PATH=$PATH:/bin:/usr/bin:/usr/local/bin

### Set root's home directory here:
#HOME=/root
HOME=~root
export HOME

### Uncomment for crude debugging output
#DEBUG=true

if [ ! -z "$DEBUG" ]; then
	echo "Args: $0 $*" > /tmp/printargs
	echo "Arg1: $1" >> /tmp/printargs
	echo "Arg2: $2" >> /tmp/printargs
	echo "Arg2: $3" >> /tmp/printargs
	echo "Arg2: $4" >> /tmp/printargs
	echo "Arg2: $5" >> /tmp/printargs
	echo "Arg2: $6" >> /tmp/printargs
	echo "Arg2: $7" >> /tmp/printargs
	command -V pqlist >> /tmp/printargs 2>&1
	command -V nprint >> /tmp/printargs 2>&1
	command -V basename >> /tmp/printargs 2>&1
	command -V cat >> /tmp/printargs 2>&1
	declare -p >> /tmp/printargs
	echo "pqlist\n------" >> /tmp/printargs
	pqlist >> /tmp/printargs
fi

ME=`basename $0`

if [ -z "$*" ]; then

	pqlist | while read printq qid; do
		echo network $ME:/$printq \"$printq\" \"NPRINT $printq\"
	done

	exit 0
fi

### For raw printing, $6 is the file to print.  For driver processed
### printing, $6 is empty and the data to print is in stdin.
FILE=$6

### When advertising multiple printers, the script has to be able
### determine where it should send real print jobs.  This is done
### through the environment variable $DEVICE_URI
SENDTO=${DEVICE_URI#${ME}:/}

if [ ! -z "$DEBUG" ]; then
	echo "SENDTO: $SENDTO" >> /tmp/printargs
	cat $6 > /tmp/printout
	cat /tmp/printout | nprint -q $SENDTO -
else
	cat $FILE | nprint -q $SENDTO -
fi