#!/bin/bash
# ----------------------------------------------------------------------------
# /var/install/config.d/cui-lprng.sh - configuration generator script for LPRng
#
# Copyright (c) 2002-2013 Thomas Bork, tom(at)eisfair(dot)net
#
# Creation   : 2002-10-06 tb
#
# 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.
# ----------------------------------------------------------------------------
#set -x
. /var/install/include/eislib
. /etc/config.d/base
. /etc/config.d/lprng

irq=''
io=''
parport=''
lpdir='/var/spool/lpd'
parportconf='/etc/parport.conf'
generate='/etc/printcap'
version=`cat /usr/share/doc/lprng/version`
usb_exists='false'
parport_any_active=no
usb_any_active=no
remote_any_active=no
lsmodbin='/sbin/lsmod'
eisfair_system=`cat /etc/eisfair-system`
rm -f ${parportconf}

do_check_parport () {
    idx='1'
    while [ "${idx}" -le "$LPRNG_LOCAL_PARPORT_PRINTER_N" ] ; do
        active=''
        eval active='$LPRNG_LOCAL_PARPORT_PRINTER_'${idx}'_ACTIVE'
        if [ "$active" = "yes" ] ; then
            parport_any_active=yes
        fi
        idx=`expr ${idx} + 1`
    done
}

do_check_usbport () {
    idx='1'
    while [ "${idx}" -le "$LPRNG_LOCAL_USBPORT_PRINTER_N" ] ; do
        active=''
        eval active='$LPRNG_LOCAL_USBPORT_PRINTER_'${idx}'_ACTIVE'
        if [ "$active" = "yes" ] ; then
            usb_any_active=yes
        fi
        idx=`expr ${idx} + 1`
    done

    if [ -f /etc/config.d/usb ] ; then
        # eisfair-1 with kernel 2.6
        . /etc/config.d/usb
        if [ "$START_USB" = "yes" ] ; then
            if [ "$USB_PRINTER" = "yes" ] ; then
                if [ -n "`${lsmodbin} | grep '^usblp '`" ] ; then
                    usb_exists="true"
                fi
            fi
        fi
    else
        # eisfair-2 with kernel 2.6 or 3.x
        usb_exists='true'
    fi
}

do_check_remote () {
    idx='1'
    while [ "${idx}" -le "$LPRNG_REMOTE_PRINTER_N" ] ; do
        active=''
        eval active='$LPRNG_REMOTE_PRINTER_'${idx}'_ACTIVE'
        if [ "$active" = "yes" ] ; then
            remote_any_active=yes
        fi
        idx=`expr ${idx} + 1`
    done
}

if [ -f "$generate" ] ; then
    /var/install/bin/backup-file ${generate} sic
fi

{
    echo "# ----------------------------------------------------------------------------"
    echo "# LPRng configuration file generated by /var/install/config.d/lprng.sh"
    echo "#"
    echo "# Version of LPRng for eisfair is $version"
    echo "#"
    echo "# Do not edit this file, use"
    echo "#"
    echo "# 'Edit LPRng Configuration'"
    echo "#"
    echo "# in LPRng Services Menu!"
    echo "#"
    echo "# Creation date: ${EISDATE} ${EISTIME}"
    echo "# ----------------------------------------------------------------------------"
} > "$generate"

if [ "$LPRNG_LOCAL_PARPORT_PRINTER_N" != 0 ] ; then
    do_check_parport
    if [ "$parport_any_active" = "yes" ] ; then
        {
            echo
            echo "# ----------------------------------------------------------------------------"
            echo "# configuration for local parallel printers"
            echo "# ----------------------------------------------------------------------------"
        } >> "$generate"

        idx='1'
        idy='0'
        while [ "${idx}" -le "$LPRNG_LOCAL_PARPORT_PRINTER_N" ] ; do
            active=''
            port=''
            interrupt=''
            eval active='$LPRNG_LOCAL_PARPORT_PRINTER_'${idx}'_ACTIVE'
            eval port='$LPRNG_LOCAL_PARPORT_PRINTER_'${idx}'_IO'
            eval interrupt='$LPRNG_LOCAL_PARPORT_PRINTER_'${idx}'_IRQ'
            eval comment='$LPRNG_LOCAL_PARPORT_PRINTER_'${idx}'_COMMENT'
            eval notify='$LPRNG_LOCAL_PARPORT_PRINTER_'${idx}'_NOTIFY'
            port=`echo ${port} | tr [:upper:] [:lower:]`
            create_printer=true

            if [ "$active" != "yes" ] ; then
                mecho --std "LPRNG_LOCAL_PARPORT_PRINTER_"${idx}" is not active -"
                mecho --std " skipping LPRNG_LOCAL_PARPORT_PRINTER_"${idx}" ..."
                create_printer=false
            fi

            if [ -z "$port" -a "$create_printer" = "true" ] ; then
                mecho --error "LPRNG_LOCAL_PARPORT_PRINTER_"${idx}"_IO is not defined -"
                mecho --error " skipping LPRNG_LOCAL_PARPORT_PRINTER_"${idx}" ..."
                create_printer=false
            fi

            if [ "$create_printer" = "true" ] ; then
                if [ "$interrupt" = "yes" ] ; then
                    interrupt=auto
                else
                    interrupt=none
                fi

                if [ -z "$irq" ] ; then
                    irq=${interrupt}
                else
                    irq=${irq},${interrupt}
                fi

                if [ -z "$parport" ] ; then
                    parport=${idy}
                else
                    parport=${parport},${idy}
                fi

                if [ -z "$io" ] ; then
                    io=${port}
                else
                    io=${io},${port}
                fi

                {
                    echo "pr${idx}:"
                    echo "        :done_jobs=0"
                    echo "        :mc=0"
                    echo "        :rw@"
                    echo "        :sh"
                    echo "        :lp=/dev/lp${idy}"
                    echo "        :sd=$lpdir/pr${idx}"
                    echo "        :fx=flp"
                    echo "        :filter_options=\$P \$b \$e \$j \$t \$f \$n \$h \$S"
                    echo "        :filter=/var/install/bin/lprng-filter"
                    echo "        :cm=$comment"
                    echo "        :smbinfo=$notify"
                    echo
                } >> "$generate"
                idy=`expr ${idy} + 1`
            fi
            idx=`expr ${idx} + 1`
        done

        if [ -n "$io" ] ; then
            {
                echo "io=$io"
                echo "irq=$irq"
                echo "parport=$parport"
            } > ${parportconf}
        fi
    else
        mecho --std "No parport printers active."
    fi
else
    mecho --std "No parport printers active."
fi

if [ "$LPRNG_LOCAL_USBPORT_PRINTER_N" != 0 ] ; then
    do_check_usbport
    if [ "$usb_any_active" = "yes" ] ; then
        if [ "$usb_exists" = "true" ] ; then
            {
                echo
                echo "# ----------------------------------------------------------------------------"
                echo "# configuration for local USB printers"
                echo "# ----------------------------------------------------------------------------"
            } >> "$generate"

            idx='1'
            idy='0'
            while [ "${idx}" -le "$LPRNG_LOCAL_USBPORT_PRINTER_N" ] ; do
                active=''
                eval active='$LPRNG_LOCAL_USBPORT_PRINTER_'${idx}'_ACTIVE'
                eval comment='$LPRNG_LOCAL_USBPORT_PRINTER_'${idx}'_COMMENT'
                eval notify='$LPRNG_LOCAL_USBPORT_PRINTER_'${idx}'_NOTIFY'
                create_printer=true

                if [ "$active" != "yes" ] ; then
                    mecho --std "LPRNG_LOCAL_USBPORT_PRINTER_"${idx}" is not active -"
                    mecho --std " skipping LPRNG_LOCAL_USBPORT_PRINTER_"${idx}" ..."
                    create_printer=false
                fi

                if [ "$create_printer" = "true" ] ; then
                    {
                        echo "usbpr${idx}:"
                        echo "        :done_jobs=0"
                        echo "        :mc=0"
                        echo "        :rw@"
                        echo "        :sh"

                        if [ "$eisfair_system" = "eisfair-1" ] ; then
                        echo "        :lp=/dev/usb/lp$idy"
                        else
                        echo "        :lp=/dev/usblp$idy"
                        fi

                        echo "        :sd=$lpdir/usbpr${idx}"
                        echo "        :fx=flp"
                        echo "        :filter_options=\$P \$b \$e \$j \$t \$f \$n \$h \$S"
                        echo "        :filter=/var/install/bin/lprng-filter"
                        echo "        :cm=$comment"
                        echo "        :smbinfo=$notify"
                        echo
                    } >> "$generate"
                fi

                idx=`expr ${idx} + 1`
                idy=`expr ${idy} + 1`
            done
        else
            if [ -f /etc/config.d/usb ] ; then
                mecho --error "If you want to print to USB printers, you have to set"
                mecho --error "\"START_USB\" and \"USB_PRINTER\" to 'yes' in USB configuration"
                mecho --error "skipping USB printers ..."
            else
                mecho --error "USB modules are not properly loaded,"
                mecho --error "skipping USB printers ..."
            fi
        fi
    else
        mecho --std "No usbport printers active."
    fi
else
    mecho --std "No usbport printers active."
fi

if [ "$LPRNG_REMOTE_PRINTER_N" != 0 ] ; then
    do_check_remote
    if [ "$remote_any_active" = "yes" ] ; then
        {
            echo
            echo "# ----------------------------------------------------------------------------"
            echo "# configuration for remote printers"
            echo "# ----------------------------------------------------------------------------"
        } >> "$generate"

        idx='1'
        while [ "${idx}" -le "$LPRNG_REMOTE_PRINTER_N" ] ; do
            eval active='$LPRNG_REMOTE_PRINTER_'${idx}'_ACTIVE'
            eval remotequeuename='$LPRNG_REMOTE_PRINTER_'${idx}'_QUEUENAME'
            eval remoteip='$LPRNG_REMOTE_PRINTER_'${idx}'_IP'
            eval remoteport='$LPRNG_REMOTE_PRINTER_'${idx}'_PORT'
            eval comment='$LPRNG_REMOTE_PRINTER_'${idx}'_COMMENT'
            eval notify='$LPRNG_REMOTE_PRINTER_'${idx}'_NOTIFY'
            create_printer=true

            if [ "$active" != "yes" ] ; then
                mecho --std "LPRNG_REMOTE_PRINTER_"${idx}" is not active -"
                mecho --std " skipping LPRNG_REMOTE_PRINTER_"${idx}" ..."
                create_printer=false
            fi

            if [ -z "$remoteip" -a "$create_printer" = "true" ] ; then
                mecho --error "LPRNG_REMOTE_PRINTER_"${idx}"_IP is not defined -"
                mecho --warn " skipping LPRNG_REMOTE_PRINTER_"${idx}" ..."
                create_printer=false
            fi

            if [ "$create_printer" = "true" ] ; then
                if [ -n "$remotequeuename" ] ; then
                    lpvar="$remotequeuename@"
                else
                    lpvar=''
                fi

                if [ -n "$remoteip" ] ; then
                    lpvar="$lpvar$remoteip"
                else
                    lpvar="$lpvar"
                fi

                if [ -n "$remoteport" ] ; then
                    lpvar="$lpvar%$remoteport"
                else
                    lpvar="$lpvar"
                fi

                {
                    echo "repr${idx}:"
                    echo "        :done_jobs=0"
                    echo "        :mc=0"
                    echo "        :connect_grace=1"
                    echo "        :connect_retry=100"
                    echo "        :connect_interval=100"
                    echo "        :max_connect_interval=200"
                    echo "        :send_try=0"
                    echo "        :send_failure_action=retry"
                    echo "        :rw@"
                    echo "        :sh"
                    echo "        :lp=$lpvar"
                    echo "        :sd=$lpdir/repr${idx}"
                    echo "        :fx=flp"
                    echo "        :filter_options=\$P \$b \$e \$j \$t \$f \$n \$h \$S"
                    echo "        :filter=/var/install/bin/lprng-filter"
                    echo "        :cm=$comment"
                    echo "        :smbinfo=$notify"
                    echo
                } >> "$generate"
            fi
            idx=`expr ${idx} + 1`
        done
    else
        mecho --std "No remote printers active."
    fi
else
    mecho --std "No remote printers active."
fi

mkdir -p /var/spool/lprng
chmod 0777 /var/spool/lprng
if [ ! -f /var/spool/lprng/log.lprng ] ; then
    touch /var/spool/lprng/log.lprng
    chown lp:lp /var/spool/lprng/log.lprng
fi

chmod 0644 "$generate"
chown root:root "$generate"