Current File : //usr/share/system-config-printer/troubleshoot/CheckPPDSanity.py
#!/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
Mini Shell