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#!/bin/bash
shopt -s execfail
exec -a "$0" python -- "$@" <(tail -n +4 -- "$0") || exit 0 # -*- python -*-
## Copyright (C) 2009 Red Hat, Inc.
## Author: 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., 675 Mass Ave, Cambridge, MA 02139, USA.
import sys
try:
import cups
CAN_EXAMINE_PPDS=True
except:
CAN_EXAMINE_PPDS=False
from getopt import getopt
import os
import posix
import re
import shlex
import signal
import stat
import subprocess
import sys
import tempfile
class TimedOut(Exception):
def __init__ (self):
Exception.__init__ (self, "Timed out")
class DeviceIDs:
def __init__ (self):
self.ids = dict()
def get_dict (self):
return self.ids
def get_tags (self):
ret = []
def squash(x):
r = x.lower ()
for a in [' ', '(', ')']:
r = r.replace (a, '_')
return r
for mfg, mdlset in self.ids.iteritems ():
mfgsquash = squash (mfg)
for mdl in mdlset:
mdlsquash = squash (mdl)
ret.append ("postscriptdriver(%s;%s;)" % (mfgsquash,
mdlsquash))
return ret
def __add__ (self, other):
if isinstance(other, DeviceIDs):
for omfg, omdlset in other.ids.iteritems ():
try:
mdlset = self.ids[omfg]
except KeyError:
mdlset = set()
self.ids[omfg] = mdlset
mdlset.update (omdlset)
return self
pieces = other.split (';')
mfg = mdl = None
for piece in pieces:
s = piece.split (":")
if len (s) != 2:
continue
key, value = s
key = key.upper ()
if key in ["MFG", "MANUFACTURER"]:
mfg = value
elif key in ["MDL", "MODEL"]:
mdl = value
if mfg and mdl:
try:
mdlset = self.ids[mfg]
except KeyError:
mdlset = set()
self.ids[mfg] = mdlset
mdlset.add (mdl)
return self
class Driver:
def __init__ (self):
self.ids = DeviceIDs()
def list (self):
return self.ids
class PPDDriver(Driver):
def __init__ (self, pathname=None):
Driver.__init__ (self)
self.pathname = pathname
def list (self):
if self.pathname != None:
self.examine_file (self.pathname)
return Driver.list (self)
def examine_file (self, path):
try:
ppd = cups.PPD (path)
except RuntimeError, e:
# Not a PPD file. Perhaps it's a drv file.
drv = DrvDriver (path)
self.ids += drv.list ()
return
attr = ppd.findAttr ('1284DeviceID')
if attr:
self.ids += attr.value
class DynamicDriver(Driver):
def __init__ (self, driver):
Driver.__init__ (self)
self.driver = driver
signal.signal (signal.SIGALRM, self._alarm)
def _alarm (self, sig, stack):
raise TimedOut
def list (self):
signal.alarm (60)
p = subprocess.Popen ([self.driver, "list"],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
try:
(stdout, stderr) = p.communicate ()
signal.alarm (0)
except TimedOut:
posix.kill (p.pid, signal.SIGKILL)
raise
if stderr:
print >> sys.stderr, stderr
ppds = []
lines = stdout.split ('\n')
for line in lines:
l = shlex.split (line)
if len (l) < 5:
continue
self.ids += l[4]
return Driver.list (self)
class DrvDriver(PPDDriver):
def __init__ (self, pathname):
PPDDriver.__init__ (self)
self.drv = pathname
def _alarm (self, sig, stack):
raise TimedOut
def list (self):
tmpdir = os.environ.get ("TMPDIR", "/tmp") + os.path.sep
outputdir = tempfile.mkdtemp (dir=tmpdir)
argv = [ "ppdc",
"-d", outputdir,
"-I", "/usr/share/cups/ppdc",
self.drv ]
signal.alarm (60)
p = subprocess.Popen (argv,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
try:
(stdout, stderr) = p.communicate ()
signal.alarm (0)
except TimedOut:
posix.kill (p.pid, signal.SIGKILL)
raise
os.path.walk (outputdir, self.examine_directory, None)
os.rmdir (outputdir)
return Driver.list (self)
def examine_directory (self, unused, dirname, fnames):
for fname in fnames:
path = dirname + os.path.sep + fname
self.examine_file (path)
os.unlink (path)
class TagBuilder:
def __init__ (self, filelist=None):
if filelist == None:
filelist = sys.stdin
paths = map (lambda x: x.rstrip (), filelist.readlines ())
self.ids = DeviceIDs ()
for path in paths:
if path.find ("/usr/lib/cups/driver/") != -1:
try:
self.ids += DynamicDriver (path).list ()
except TimedOut:
pass
if CAN_EXAMINE_PPDS:
candidates = set()
symlinks = set()
for searchpath in ["/usr/share/cups/model/",
"/usr/share/ppd/",
"/usr/share/cups/drv/"]:
for path in paths:
if path.find (searchpath) != -1:
st = os.lstat (path)
if stat.S_ISLNK (st.st_mode):
symlinks.add (path)
elif stat.S_ISREG (st.st_mode):
candidates.add (path)
# Now check for symlinks (just one level)
for each in symlinks:
target = os.path.realpath (each)
if target in candidates:
continue
try:
st = os.lstat (target)
except OSError:
continue
if stat.S_ISREG (st.st_mode):
candidates.add (target)
elif stat.S_ISDIR (st.st_mode):
if not target.endswith (os.path.sep):
target += os.path.sep
for path in paths:
if path.find (target) != -1:
st = os.lstat (path)
if stat.S_ISREG (st.st_mode):
candidates.add (path)
for path in candidates:
try:
self.ids += PPDDriver (path).list ()
except TimedOut:
pass
def get_tags (self):
return self.ids.get_tags ()
if __name__ == "__main__":
builder = TagBuilder ()
tags = builder.get_tags ()
for tag in tags:
print tag
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