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#!/usr/bin/python3
## check-device-ids
## Copyright (C) 2010, 2011, 2012, 2013 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.
import dbus
import cups
import cupshelpers
from cupshelpers.ppds import PPDs, ppdMakeModelSplit
import sys
from functools import reduce
c = cups.Connection ()
devices = None
if len (sys.argv) > 1 and sys.argv[1] == '--help':
print("Syntax: check-device-ids <device-make-and-model> <device-id>")
print(" or: check-device-ids <device-uri>")
print(" or: check-device-ids <queue-name>")
print(" or: check-device-ids")
sys.exit (1)
SPECIFIC_URI = None
if len (sys.argv) == 3:
id_dict = cupshelpers.parseDeviceID (sys.argv[2])
if id_dict.get ("MFG") and id_dict.get ("MDL"):
devices = { 'user-specified:':
{ 'device-make-and-model': sys.argv[1],
'device-id': sys.argv[2] }
}
elif len (sys.argv) == 2:
if sys.argv[1].find (":/") != -1:
SPECIFIC_URI = sys.argv[1]
else:
# This is a queue name. Work out the URI from that.
try:
attrs = c.getPrinterAttributes (sys.argv[1])
except cups.IPPError as e:
(e, m) = e.args
print("Error getting printer attibutes: %s" % m)
sys.exit (1)
SPECIFIC_URI = attrs['device-uri']
print("URI for queue %s is %s" % (sys.argv[1], SPECIFIC_URI))
else:
print ("\nIf you have not already done so, you may get more results\n"
"by temporarily disabling your firewall (or by allowing\n"
"incoming UDP packets on port 161).\n")
if devices == None:
if not SPECIFIC_URI:
print("Examining connected devices")
cups.setUser ('root')
c = cups.Connection ()
try:
if SPECIFIC_URI:
scheme = str (SPECIFIC_URI.split (":", 1)[0])
devices = c.getDevices (include_schemes=[scheme])
else:
devices = c.getDevices (exclude_schemes=["dnssd", "hal", "hpfax"])
except cups.IPPError as e:
(e, m) = e.args
if e == cups.IPP_FORBIDDEN:
print("Run this as root to examine IDs from attached devices.")
sys.exit (1)
if e in (cups.IPP_NOT_AUTHORIZED, cups.IPP_AUTHENTICATION_CANCELED):
print("Not authorized.")
sys.exit (1)
if SPECIFIC_URI:
if devices.get (SPECIFIC_URI) == None:
devices = { SPECIFIC_URI:
{ 'device-make-and-model': '',
'device-id': ''} }
if len (devices) == 0:
print("No attached devices.")
sys.exit (0)
n = 0
device_ids = []
for device, attrs in devices.items ():
if device.find (":") == -1:
continue
if SPECIFIC_URI and device != SPECIFIC_URI:
continue
make_and_model = attrs.get ('device-make-and-model')
device_id = attrs.get ('device-id')
if (SPECIFIC_URI or make_and_model) and not device_id:
try:
hostname = None
if (device.startswith ("socket://") or
device.startswith ("lpd://") or
device.startswith ("ipp://") or
device.startswith ("http://") or
device.startswith ("https://")):
hostname = device[device.find ("://") + 3:]
colon = hostname.find (":")
if colon != -1:
hostname = hostname[:colon]
if hostname:
devs = []
def got_device (dev):
if dev != None:
devs.append (dev)
import probe_printer
pf = probe_printer.PrinterFinder ()
pf.hostname = hostname
pf.callback_fn = got_device
pf._cached_attributes = dict()
print("Sending SNMP request to %s for device-id" % hostname)
pf._probe_snmp ()
for dev in devs:
if dev.id:
device_id = dev.id
attrs.update ({'device-id': dev.id})
if not make_and_model and dev.make_and_model:
make_and_model = dev.make_and_model
attrs.update ({'device-make-and-model':
dev.make_and_model})
except Exception as e:
print("Exception: %s" % repr (e))
if not (make_and_model and device_id):
print("Skipping %s, insufficient data" % device)
continue
id_fields = cupshelpers.parseDeviceID (device_id)
this_id = "MFG:%s;MDL:%s;" % (id_fields['MFG'], id_fields['MDL'])
device_ids.append (this_id)
n += 1
if not device_ids:
print("No Device IDs available.")
sys.exit (0)
try:
bus = dbus.SessionBus ()
print("Installing relevant drivers using session service")
try:
obj = bus.get_object ("org.freedesktop.PackageKit",
"/org/freedesktop/PackageKit")
proxy = dbus.Interface (obj, "org.freedesktop.PackageKit.Modify")
proxy.InstallPrinterDrivers (0, device_ids,
"hide-finished", timeout=3600)
except dbus.exceptions.DBusException as e:
print("Ignoring exception: %s" % e)
except dbus.exceptions.DBusException:
try:
bus = dbus.SystemBus ()
print("Installing relevant drivers using system service")
try:
obj = bus.get_object ("com.redhat.PrinterDriversInstaller",
"/com/redhat/PrinterDriversInstaller")
proxy = dbus.Interface (obj,
"com.redhat.PrinterDriversInstaller")
for device_id in device_ids:
id_dict = cupshelpers.parseDeviceID (device_id)
proxy.InstallDrivers (id_dict['MFG'], id_dict['MDL'], '',
timeout=3600)
except dbus.exceptions.DBusException as e:
print("Ignoring exception: %s" % e)
except dbus.exceptions.DBusException:
print("D-Bus not available so skipping package installation")
print("Fetching driver list")
ppds = PPDs (c.getPPDs ())
ppds._init_ids ()
makes = ppds.getMakes ()
def driver_uri_to_filename (uri):
schemeparts = uri.split (':', 2)
if len (schemeparts) < 2:
if uri.startswith ("lsb/usr/"):
return "/usr/share/ppd/" + uri[8:]
elif uri.startswith ("lsb/opt/"):
return "/opt/share/ppd/" + uri[8:]
elif uri.startswith ("lsb/local/"):
return "/usr/local/share/ppd/" + uri[10:]
return "/usr/share/cups/model/" + uri
scheme = schemeparts[0]
if scheme != "drv":
return "/usr/lib/cups/driver/" + scheme
rest = schemeparts[1]
rest = rest.lstrip ('/')
parts = rest.split ('/')
if len (parts) > 1:
parts = parts[:len (parts) - 1]
return "/usr/share/cups/drv/" + reduce (lambda x, y: x + "/" + y, parts)
def driver_uri_to_pkg (uri):
filename = driver_uri_to_filename (uri)
try:
import packagekit.client, packagekit.enums
client = packagekit.client.PackageKitClient ()
packages = client.search_file ([filename],
packagekit.enums.FILTER_INSTALLED)
return packages[0].name
except:
return filename
i = 1
if sys.stdout.encoding == 'UTF-8':
item = chr (0x251c) + chr (0x2500) + chr (0x2500)
last = chr (0x2514) + chr (0x2500) + chr (0x2500)
else:
item = "|--"
last = "`--"
for device, attrs in devices.items ():
make_and_model = attrs.get ('device-make-and-model')
device_id = attrs.get ('device-id')
if device.find (":") == -1:
continue
if not (make_and_model and device_id):
continue
id_fields = cupshelpers.parseDeviceID (device_id)
if i < n:
line = item
else:
line = last
cmd = id_fields['CMD']
if cmd:
cmd = "CMD:%s;" % reduce (lambda x, y: x + ',' + y, cmd)
else:
cmd = ""
scheme = device.split (":", 1)[0]
print("%s %s (%s): MFG:%s;MDL:%s;%s" % (line, make_and_model,
scheme,
id_fields['MFG'],
id_fields['MDL'],
cmd))
try:
drivers = ppds.ids[id_fields['MFG'].lower ()][id_fields['MDL'].lower ()]
except KeyError:
drivers = []
if i < n:
more = chr (0x2502)
else:
more = " "
if drivers:
drivers = ppds.orderPPDNamesByPreference (drivers)
n_drivers = len (drivers)
j = 1
for driver in drivers:
if j < n_drivers:
print("%s %s %s [%s]" % (more, item, driver,
driver_uri_to_pkg (driver)))
else:
print("%s %s %s [%s]" % (more, last, driver,
driver_uri_to_pkg (driver)))
j += 1
else:
print("%s (No drivers)" % more)
(mfr, mdl) = ppdMakeModelSplit (make_and_model)
matches = set (ppds.getInfoFromModel (mfr, mdl))
mfrl = mfr.lower ()
mdls = None
for make in makes:
if make.lower () == mfrl:
mdls = ppds.makes[make]
break
if mdls:
(s, bestmatches) = ppds._findBestMatchPPDs (mdls, mdl)
if s == ppds.FIT_EXACT:
matches = matches.union (set (bestmatches))
missing = set (matches) - set (drivers)
for each in missing:
try:
ppd_device_id = ppds.getInfoFromPPDName (each).get ('ppd-device-id')
except Exception as e:
print(e)
ppd_device_id = None
if ppd_device_id:
ppd_id_fields = cupshelpers.parseDeviceID (ppd_device_id)
else:
ppd_id_fields = {}
if ppd_id_fields.get ("MFG") and ppd_id_fields.get ("MDL"):
print("%s WRONG %s [%s]" % (more, each,
driver_uri_to_pkg (each)))
for field in ["MFG", "MDL"]:
value = id_fields[field]
ppd_value = ppd_id_fields[field]
if value.lower () != ppd_value.lower ():
print("%s %s:%s;" % (more, field, ppd_value))
print("%s should be:%s;" % (more, value))
else:
print("%s MISSING %s [%s]" % (more, each,
driver_uri_to_pkg (each)))
i += 1
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