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#####################################
# Include: Setup printer daemon LPD #
#####################################
## Functions ##
setup_virtual_printer() {
# TODO: QUEUE should prolly not be hardcoded ....
local QUEUE="STANDARD" # This has to match the queue you configured in your VM
local SPOOLDIR
### Disabled: 100megs is not enough, some jobs are HUGE, try to use temp which should be on disk
## Try using user's tmpfs home first, as it gets wiped on logout
#if [ -n "${HOME}" ] && [ -w "${HOME}" ]; then
# SPOOLDIR="${HOME}/.spool"
# mkdir -p "${SPOOLDIR}/${QUEUE}"
#fi
# If failed, try to fall back to /tmp
if [ -z "${SPOOLDIR}" ] || [ ! -w "${SPOOLDIR}/${QUEUE}" ]; then
SPOOLDIR="${TMPDIR}/printergui-${RANDOM}"
rm -rf -- "${SPOOLDIR}"
if ! mkdir -p "${SPOOLDIR}/${QUEUE}"; then
writelog "Could not mkdir -p '${SPOOLDIR}/${QUEUE}'"
notify_user "Drucksystem" "Das Drucksystem konnte nicht initialisiert werden. Druckfunktion nicht verfügbar."
fi
chmod 0700 "${SPOOLDIR}/${QUEUE}"
fi
# Start the lpdaemon listening on the given port
# TODO: externalize with something like runvirt.d (other parts might benefit from that too)
tcpsvd -E 192.168.101.1 5515 \
lpd "$SPOOLDIR" \
ash -c "/opt/openslx/scripts/run-virt_print '${USER}' \"${SPOOLDIR}/${QUEUE}/\$DATAFILE\"" \
&> "${TMPDIR}/tcpsvd.log" \
&
# PID to kill the process
declare -rg PID_LPD="$!"
add_cleanup "stop_virtual_printer"
{
sleep 2
# Check if tcpsvd is running. Do this a little delayed so we do not check
# immediately after trying to spawn it, as this could result in
# success even if it's not really working.
if ! kill -0 "$PID_LPD"; then
writelog "Could not start tcpsvd/lpd for virtual machine session:"
writelog "$( cat "${TMPDIR}/tcpsvd.log" )"
notify_user "Drucksystem" "Das Drucksystem konnte nicht initialisiert werden. Druckfunktion nicht verfügbar."
fi
} &
}
# cleanup helper to stop lpd
stop_virtual_printer() {
isset PID_LPD && kill "${PID_LPD}"
}
## MAIN ##
# Sanity checks
unset FAIL
if ! check_dep tcpsvd lpd; then
writelog "One of 'tcpsvd' or 'lpd' could not be found in PATH: $PATH"
FAIL=y
fi
if [ ! -f "/opt/openslx/scripts/run-virt_print" ]; then
writelog "File not found: /opt/openslx/scripts/run-virt_print"
FAIL=y
fi
if isset FAIL; then
unset FAIL
notify_user "Drucksystem" "Das Drucksystem konnte nicht initialisiert werden. Druckfunktion nicht verfügbar."
else
reg_feature_handler "printer" "setup_virtual_printer"
fi
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