/usr/share/system-config-printer/xml/validate.py is in system-config-printer-common 1.4.3+20140219-0ubuntu2.
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 | #!/usr/bin/python
## system-config-printer
## Copyright (C) 2010 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.
## This program performs validation that cannot be performed using
## RELAX NG alone.
import fnmatch
import sys
import xml.etree.ElementTree
class Validator:
def __init__ (self, filename):
self._filename = filename
def validate (self):
filename = self._filename
print "Validating %s" % filename
preferreddrivers = xml.etree.ElementTree.XML (file (filename).read ())
(drivertypes, preferenceorder) = preferreddrivers.getchildren ()
validates = True
names = set()
for drivertype in drivertypes.getchildren ():
name = drivertype.get ("name")
names.add (name)
for printer in preferenceorder.getchildren ():
types = []
drivers = printer.find ("drivers")
if drivers != None:
types.extend (drivers.getchildren ())
blacklist = printer.find ("blacklist")
if blacklist != None:
types.extend (blacklist.getchildren ())
for drivertype in types:
pattern = drivertype.text.strip ()
matches = fnmatch.filter (names, pattern)
names -= set (matches)
for name in names:
validates = False
print >>sys.stderr, ("*** Driver type \"%s\" is never used" %
name)
return validates
import getopt
import os
opts, args = getopt.getopt (sys.argv[1:], "")
if len (args) < 1:
dirname = os.path.dirname (sys.argv[0])
args = [os.path.join (dirname, "preferreddrivers.xml")]
exitcode = 0
for filename in args:
validator = Validator (filename)
if not validator.validate ():
exitcode = 1
sys.exit (exitcode)
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