June
c97f169b77
Add and configure a print server for the Brother P-touch QL 500 label printer, so that it can be easily used via SSH. Do the following to make that work: - Configure the print server host. - Package printer-driver-ptouch to have a working driver for the label printer. - Configure CUPS. - Add a script "forcecommand-lpr-wrapper", which works together with the ForceCommand sshd_config option and wraps lpr to provide an easy interface to use the Brother QL 500 label printer via SSH. - Add a print user and configure SSH to have the "forcecommand-lpr-wrapper" script accessible without a password using the print user via SSH.
85 lines
2.9 KiB
Python
85 lines
2.9 KiB
Python
#!/usr/bin/env python3
|
|
|
|
# A script for usage with the ForceCommand sshd_config option.
|
|
# It calls lpr with some standard arguments, but also parses
|
|
# SSH_ORIGINAL_COMMAND to potentially provide a different set of arguments to
|
|
# lpr.
|
|
#
|
|
# This wrapper is written for interacting with the Brother QL 500 label printer.
|
|
#
|
|
# The following options can be provided as an SSH command and this script will
|
|
# then pass them to the lpr call: <MediaType> <PageSize>
|
|
# - MediaType can be one of:
|
|
# - Labels
|
|
# - Tape (this is the default)
|
|
# - PageSize can be one of:
|
|
# - 12mm
|
|
# - 12mm-circular
|
|
# - 17x54mm
|
|
# - 17x87mm
|
|
# - 23x23mm
|
|
# - 24mm-circular
|
|
# - 29mm
|
|
# - 29x90mm
|
|
# - 38mm
|
|
# - 38x90mm
|
|
# - 50mm
|
|
# - 54mm
|
|
# - 58mm-circular
|
|
# - 62mm
|
|
# - 62x29mm
|
|
# - 62x100mm
|
|
# - Custom.WIDTHxHEIGHT (with WIDTH and HEIGHT needing to be either one to
|
|
# three digits)
|
|
# - label-wide (this being a convenience alias for Custom.62x35mm and it also
|
|
# being the default)
|
|
# - label-item (this being a convenience alias for 38x90mm)
|
|
#
|
|
# So using these options in a complete setup would look like this for example:
|
|
# cat label-item.pdf | ssh print@ptouch-print-server.z9.ccchh.net labels label-item
|
|
# This being equivalent to:
|
|
# cat label-item.pdf | ssh print@ptouch-print-server.z9.ccchh.net Labels 38x90mm
|
|
#
|
|
# The options are case-insensitive.
|
|
#
|
|
# The options are derived from: lpoptions -p Brother-QL-500 -l
|
|
|
|
import os, re, subprocess
|
|
|
|
mediaType = "Tape"
|
|
pageSize = "Custom.62x35mm"
|
|
|
|
def parseGivenOptions():
|
|
givenOptionsString = os.environ["SSH_ORIGINAL_COMMAND"]
|
|
givenOptionsIterator = iter(givenOptionsString.split(" "))
|
|
|
|
givenMediaType = next(givenOptionsIterator, "")
|
|
givenPageSize = next(givenOptionsIterator, "")
|
|
|
|
global mediaType
|
|
if givenMediaType.lower() == "labels":
|
|
mediaType = "Labels"
|
|
elif givenMediaType.lower() == "tape":
|
|
mediaType = "Tape"
|
|
|
|
global pageSize
|
|
pageSizeRegex = re.compile(r"^((12mm(-circular)?)|(24mm-circular)|(58mm-circular)|(((17x(54|87))|(23x23)|((29|38)(x90)?)|(62x(29|100))|50|54|62)mm))$", re.ASCII | re.IGNORECASE)
|
|
pageSizeMatch = pageSizeRegex.match(givenPageSize)
|
|
pageSizeCustomRegex = re.compile(r"^custom\.(\d{1,3})x(\d{1,3})$", re.ASCII | re.IGNORECASE)
|
|
pageSizeCustomMatch = pageSizeCustomRegex.match(givenPageSize)
|
|
if givenPageSize.lower() == "label-wide":
|
|
pageSize = "Custom.62x35mm"
|
|
elif givenPageSize.lower() == "label-item":
|
|
pageSize = "38x90mm"
|
|
elif pageSizeMatch:
|
|
pageSize = givenPageSize.lower()
|
|
elif pageSizeCustomMatch:
|
|
width = pageSizeCustomMatch.group(1)
|
|
height = pageSizeCustomMatch.group(2)
|
|
pageSize = "Custom.{}x{}".format(width, height)
|
|
|
|
if "SSH_ORIGINAL_COMMAND" in os.environ:
|
|
parseGivenOptions()
|
|
|
|
subprocess.run(["lpr", "-P", "Brother-QL-500", "-o", "MediaType={}".format(mediaType), "-o", "PageSize={}".format(pageSize)])
|