/usr/share/system-config-printer/troubleshoot/CheckPPDSanity.py is in system-config-printer-gnome 1.5.7+20160212-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 | #!/usr/bin/python3
## Printing troubleshooter
## Copyright (C) 2008, 2009, 2010, 2014 Red Hat, Inc.
## Authors:
## Tim Waugh <twaugh@redhat.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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
from gi.repository import Gtk
import cups
import cupshelpers
import installpackage
import os
import subprocess
from timedops import TimedOperation, TimedSubprocess
from .base import *
from functools import reduce
class CheckPPDSanity(Question):
def __init__ (self, troubleshooter):
Question.__init__ (self, troubleshooter, "Check PPD sanity")
vbox = Gtk.VBox ()
vbox.set_border_width (12)
vbox.set_spacing (12)
self.label = Gtk.Label ()
self.label.set_line_wrap (True)
self.label.set_use_markup (True)
self.label.set_alignment (0, 0)
vbox.pack_start (self.label, False, False, 0)
box = Gtk.HButtonBox ()
box.set_layout (Gtk.ButtonBoxStyle.START)
self.install_button = Gtk.Button.new_with_label (_("Install"))
box.add (self.install_button)
# Although we want this hidden initially,
# troubleshooter.new_page will call show_all() on the widget
# we give it. We'll need to hide this button in the display()
# callback instead.
vbox.pack_start (box, False, False, 0)
troubleshooter.new_page (vbox, self)
def display (self):
self.answers = {}
answers = self.troubleshooter.answers
if not answers['cups_queue_listed']:
return False
parent = self.troubleshooter.get_window ()
name = answers['cups_queue']
tmpf = None
try:
cups.setServer ('')
self.op = TimedOperation (cups.Connection, parent=parent)
c = self.op.run ()
self.op = TimedOperation (c.getPPD, args=(name,), parent=parent)
tmpf = self.op.run ()
except RuntimeError:
return False
except cups.IPPError:
return False
self.install_button.hide ()
title = None
text = None
try:
ppd = cups.PPD (tmpf)
self.answers['cups_printer_ppd_valid'] = True
def options (options_list):
o = {}
for option in options_list:
o[option.keyword] = option.defchoice
return o
defaults = {}
for group in ppd.optionGroups:
g = options (group.options)
for subgroup in group.subgroups:
g[subgroup.name] = options (subgroup.options)
defaults[group.name] = g
self.answers['cups_printer_ppd_defaults'] = defaults
except RuntimeError:
title = _("Invalid PPD File")
self.answers['cups_printer_ppd_valid'] = False
try:
self.op = TimedSubprocess (parent=parent,
args=['cupstestppd', '-rvv', tmpf],
close_fds=True,
stdin=subprocess.DEVNULL,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
result = self.op.run ()
self.answers['cupstestppd_output'] = result
text = _("The PPD file for printer '%s' does not conform "
"to the specification. "
"Possible reason follows:") % name
text += '\n' + reduce (lambda x, y: x + '\n' + y, result[0])
except OSError:
# Perhaps cupstestppd is not in the path.
text = _("There is a problem with the PPD file for "
"printer '%s'.") % name
if tmpf:
os.unlink (tmpf)
if title is None and not answers['cups_printer_remote']:
(pkgs, exes) = cupshelpers.missingPackagesAndExecutables (ppd)
self.answers['missing_pkgs_and_exes'] = (pkgs, exes)
if len (pkgs) > 0 or len (exes) > 0:
title = _("Missing Printer Driver")
if len (pkgs) > 0:
try:
self.packagekit = installpackage.PackageKit ()
except:
pkgs = []
if len (pkgs) > 0:
self.package = pkgs[0]
text = _("Printer '%s' requires the %s package but it "
"is not currently installed.") % (name,
self.package)
self.install_button.show ()
else:
text = _("Printer '%s' requires the '%s' program but it "
"is not currently installed.") % (name,
(exes + pkgs)[0])
if title is not None:
self.label.set_markup ('<span weight="bold" size="larger">' +
title + '</span>\n\n' + text)
return title is not None
def connect_signals (self, handle):
self.button_sigid = self.install_button.connect ("clicked",
self.install_clicked)
def disconnect_signals (self):
self.install_button.disconnect (self.button_sigid)
def collect_answer (self):
return self.answers
def cancel_operation (self):
self.op.cancel ()
def install_clicked (self, button):
pkgs = self.answers.get('packages_installed', [])
pkgs.append (self.package)
self.answers['packages_installed'] = pkgs
try:
self.packagekit.InstallPackageName (0, 0, self.package)
except:
pass
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