WIP: ptouch-print-server
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7
config/hosts/ptouch-print-server/configuration.nix
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7
config/hosts/ptouch-print-server/configuration.nix
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{ ... }:
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{
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networking.hostName = "ptouch-print-server";
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system.stateVersion = "23.11";
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}
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9
config/hosts/ptouch-print-server/default.nix
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9
config/hosts/ptouch-print-server/default.nix
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{ ... }:
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{
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imports = [
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./configuration.nix
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./networking.nix
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./printing.nix
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];
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}
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#!/usr/bin/env python3
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# A script for usage with the ForceCommand sshd_config option.
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# It calls lpr with some standard arguments, but also parses
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# SSH_ORIGINAL_COMMAND to potentially provide a different set of arguments to
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# lpr.
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#
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# This wrapper is written for interacting with the Brother QL 500 label printer.
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#
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# The following options can be provided as an SSH command and this script will
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# then pass them to the lpr call: <MediaType> <PageSize>
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# - MediaType can be one of:
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# - Labels
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# - Tape (this is the default)
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# - PageSize can be one of:
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# - 12mm
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# - 12mm-circular
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# - 17x54mm
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# - 17x87mm
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# - 23x23mm
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# - 24mm-circular
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# - 29mm
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# - 29x90mm
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# - 38mm
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# - 38x90mm
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# - 50mm
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# - 54mm
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# - 58mm-circular
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# - 62mm
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# - 62x29mm
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# - 62x100mm
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# - Custom.WIDTHxHEIGHT (with WIDTH and HEIGHT needing to be either one to
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# three digits)
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# - label-wide (this being a convenience alias for Custom.62x35mm and it also
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# being the default)
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# - label-item (this being a convenience alias for 38x90mm)
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#
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# So using these options in a complete setup would look like this for example:
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# cat label-item.pdf | ssh print@ptouch-print-server.z9.ccchh.net labels label-item
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# This being equivalent to:
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# cat label-item.pdf | ssh print@ptouch-print-server.z9.ccchh.net Labels 38x90mm
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#
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# The options are case-insensitive.
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#
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# The options are derived from: lpoptions -p Brother-QL-500 -l
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import os, re, subprocess
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mediaType = "Tape"
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pageSize = "Custom.62x35mm"
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def parseGivenOptions():
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givenOptionsString = os.environ["SSH_ORIGINAL_COMMAND"]
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givenOptionsIterator = iter(givenOptionsString.split(" "))
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givenMediaType = next(givenOptionsIterator, "")
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givenPageSize = next(givenOptionsIterator, "")
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global mediaType
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if givenMediaType.lower() == "labels":
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mediaType = "Labels"
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elif givenMediaType.lower() == "tape":
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mediaType = "Tape"
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global pageSize
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pageSizeRegex = re.compile(r"^((12mm(-circular)?)|(24mm-circular)|(58mm-circular)|(((17x(54|87))|(23x23)|((29|38)(x90)?)|(62x(29|100))|50|54|62)mm))$", re.ASCII | re.IGNORECASE)
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pageSizeMatch = pageSizeRegex.match(givenPageSize)
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pageSizeCustomRegex = re.compile(r"^custom\.(\d{1,3})x(\d{1,3})$", re.ASCII | re.IGNORECASE)
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pageSizeCustomMatch = pageSizeCustomRegex.match(givenPageSize)
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if givenPageSize.lower() == "label-wide":
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pageSize = "Custom.62x35mm"
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elif givenPageSize.lower() == "label-item":
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pageSize = "38x90mm"
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elif pageSizeMatch:
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pageSize = givenPageSize.lower()
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elif pageSizeCustomMatch:
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width = pageSizeCustomMatch.group(1)
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height = pageSizeCustomMatch.group(2)
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pageSize = "Custom.{}x{}".format(width, height)
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if "SSH_ORIGINAL_COMMAND" in os.environ:
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parseGivenOptions()
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subprocess.run(["lpr", "-P", "Brother-QL-500", "-o", "MediaType={}".format(mediaType), "-o", "PageSize={}".format(pageSize)])
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from distutils.core import setup
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setup(
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name = "forcecommand-lpr-wrapper",
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version = "0.0.1",
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scripts = ["./forcecommand-lpr-wrapper.py"]
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)
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23
config/hosts/ptouch-print-server/networking.nix
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23
config/hosts/ptouch-print-server/networking.nix
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{ ... }:
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{
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networking = {
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interfaces.net0 = {
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ipv4.addresses = [
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{
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address = "10.31.208.13";
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prefixLength = 25;
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}
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];
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};
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defaultGateway = "10.31.208.1";
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nameservers = [
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"10.31.208.1"
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];
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};
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systemd.network.links."10-net0" = {
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matchConfig.MACAddress = "BC:24:11:F2:CF:8F";
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linkConfig.Name = "net0";
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};
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}
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104
config/hosts/ptouch-print-server/printing.nix
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104
config/hosts/ptouch-print-server/printing.nix
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# Sources for this configuration:
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# - https://nixos.wiki/wiki/Printing
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{ pkgs, lib, ... }:
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let
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# https://github.com/philpem/printer-driver-ptouch
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printer-driver-ptouch = pkgs.stdenv.mkDerivation rec {
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pname = "printer-driver-ptouch";
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version = "1.7";
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src = pkgs.fetchgit {
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url = "https://github.com/philpem/printer-driver-ptouch";
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rev = "v${version}";
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hash = "sha256-3ZotSHn7lERp53hAzx47Ct/k565rEoensCcltwX/Xls=";
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};
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nativeBuildInputs = [
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pkgs.autoreconfHook
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pkgs.perl
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];
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buildInputs = [
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pkgs.cups
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pkgs.libpng
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pkgs.perlPackages.XMLLibXML
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pkgs.foomatic-db-engine
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];
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patches = [
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# Add this patch to have the package actually build sucessfully.
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# https://github.com/philpem/printer-driver-ptouch/pull/35
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(pkgs.fetchpatch {
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name = "fix-brother-ql-600.xml.patch";
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url = "https://patch-diff.githubusercontent.com/raw/philpem/printer-driver-ptouch/pull/35.patch";
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hash = "sha256-y5bHKFeRXx8Wdl1++l4QNGgiY41LY5uzrRdOlaZyF9I=";
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})
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];
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# Used the following as a reference on how to generate the ppd files.
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# https://salsa.debian.org/printing-team/ptouch-driver/-/blob/4ba5d2c490ea1230374aa4b0bf711bf77f1ab0c7/debian/rules#L34
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postInstall = ''
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mkdir -p $out/share/cups
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FOOMATICDB=$out/share/foomatic ${pkgs.foomatic-db-engine}/bin/foomatic-compiledb -t ppd -d $out/share/cups/model
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rm -r $out/share/foomatic
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'';
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postPatch = ''
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patchShebangs --build foomaticalize
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'';
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};
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forcecommand-lpr-wrapper = pkgs.python3Packages.buildPythonApplication {
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name = "forcecommand-lpr-wrapper";
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src = ./forcecommand-lpr-wrapper;
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propagatedBuildInputs = [
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pkgs.cups
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];
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};
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in
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{
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services.printing = {
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enable = true;
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drivers = [ printer-driver-ptouch ];
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stateless = true;
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};
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hardware.printers = {
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ensurePrinters = [
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{
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name = "Brother-QL-500";
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location = "Z9";
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deviceUri = "usb://Brother/QL-500?serial=J8Z249208";
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model = "Brother-QL-500-ptouch-ql.ppd";
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ppdOptions = {
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PageSize = "Custom.62x35mm";
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};
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}
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];
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ensureDefaultPrinter = "Brother-QL-500";
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};
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users.users.print = {
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isNormalUser = true;
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description = "User for printing via SSH.";
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password = "";
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};
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# PasswordAuthentication being set to false just puts "auth required
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# pam_deny.so # deny (order 12400)" for pam.d/sshd, so enable
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# PasswordAuthentication to have it not do that.
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services.openssh.settings.PasswordAuthentication = lib.mkForce true;
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# The following doesn't need to be set in order for empty passwords to work
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# apparently:
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# security.pam.services.sshd.allowNullPassword = true;
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services.openssh.extraConfig = ''
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Match User print
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PubkeyAuthentication no
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AuthenticationMethods none
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PermitEmptyPasswords yes
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ForceCommand ${forcecommand-lpr-wrapper}/bin/forcecommand-lpr-wrapper.py
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Match User *
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'';
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}
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14
flake.nix
14
flake.nix
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@ -197,6 +197,20 @@
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./config/hosts/forgejo-actions-runner
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./config/hosts/forgejo-actions-runner
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];
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];
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};
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};
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ptouch-print-server = {
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deployment = {
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targetHost = "ptouch-print-server.z9.ccchh.net";
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targetPort = 22;
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targetUser = "colmena-deploy";
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tags = [ "thinkcccluster" ];
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};
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imports = [
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./config/common
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./config/proxmox-vm
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./config/hosts/ptouch-print-server
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];
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};
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};
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};
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packages.x86_64-linux = {
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packages.x86_64-linux = {
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