/usr/share/system-config-printer/PhysicalDevice.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.
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## Copyright (C) 2008, 2009, 2010, 2012 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 config
import gettext
gettext.install(domain=config.PACKAGE, localedir=config.localedir, unicode=True)
import cupshelpers
import urllib
import ppdippstr
class PhysicalDevice:
def __init__(self, device):
self.devices = None
self._network_host = None
self.dnssd_hostname = None
self._cupsserver = False
self.add_device (device)
self._user_data = {}
self._ppdippstr = ppdippstr.backends
def _canonical_id (self, device):
if hasattr (device, "id_dict"):
mfg = device.id_dict.get ('MFG', '')
mdl = device.id_dict.get ('MDL', '')
if mfg == '' or mdl.lower ().startswith (mfg.lower ()):
make_and_model = mdl
else:
make_and_model = "%s %s" % (mfg, mdl)
else:
make_and_model = device.make_and_model
return cupshelpers.ppds.ppdMakeModelSplit (make_and_model)
def _get_host_from_uri (self, uri):
hostport = None
host = None
dnssdhost = None
(scheme, rest) = urllib.splittype (uri)
if scheme == 'hp' or scheme == 'hpfax':
if rest.startswith ("/net/"):
(rest, ipparam) = urllib.splitquery (rest[5:])
if ipparam != None and ipparam.startswith("ip="):
hostport = ipparam[3:]
else:
if ipparam != None and ipparam.startswith("zc="):
dnssdhost = ipparam[3:]
else:
return None, None
else:
return None, None
elif scheme == 'dnssd' or scheme == 'mdns':
# The URIs of the CUPS "dnssd" backend do not contain the host
# name of the printer
return None, None
else:
(hostport, rest) = urllib.splithost (rest)
if hostport == None:
return None, None
if hostport:
(host, port) = urllib.splitport (hostport)
if type (host) == unicode:
host = host.encode ('utf-8')
if type (dnssdhost) == unicode:
dnssdhost = dnssdhost.encode ('utf-8')
return host, dnssdhost
def add_device (self, device):
if self._network_host or self.dnssd_hostname:
host, dnssdhost = self._get_host_from_uri (device.uri)
if (hasattr (device, 'address')):
host = device.address
if (hasattr (device, 'hostname') and dnssdhost == None):
dnssdhost = device.hostname
if (host == None and dnssdhost == None) or \
(host and self._network_host and \
host != self._network_host) or \
(dnssdhost and self.dnssd_hostname and \
dnssdhost != self.dnssd_hostname) or \
(host == None and self.dnssd_hostname == None) or \
(dnssdhost == None and self._network_host == None):
raise ValueError
else:
(mfg, mdl) = self._canonical_id (device)
if self.devices == None:
self.mfg = mfg
self.mdl = mdl
self.mfg_lower = mfg.lower ()
self.mdl_lower = mdl.lower ()
self.sn = device.id_dict.get ('SN', '')
self.devices = []
else:
def nicest (a, b):
def count_lower (s):
l = s.lower ()
n = 0
for i in xrange (len (s)):
if l[i] != s[i]:
n += 1
return n
if count_lower (b) < count_lower (a):
return b
return a
self.mfg = nicest (self.mfg, mfg)
self.mdl = nicest (self.mdl, mdl)
sn = device.id_dict.get ('SN', '')
if sn != '' and self.sn != '' and sn != self.sn:
raise ValueError
if device.type == "socket":
# Remove default port to more easily find duplicate URIs
device.uri = device.uri.replace (":9100", "")
if (device.uri.startswith('ipp:') and \
device.uri.find('/printers/') != -1) or \
((device.uri.startswith('dnssd:') or \
device.uri.startswith('mdns:')) and \
device.uri.endswith('/cups')):
# CUPS server
self._cupsserver = True
elif self._cupsserver:
# Non-CUPS queue on a CUPS server, drop this one
return
for d in self.devices:
if d.uri == device.uri:
return
self.devices.append (device)
self.devices.sort ()
if (not self._network_host or not self.dnssd_hostname) and \
device.device_class == "network":
# We just added a network device.
self._network_host, dnssdhost = \
self._get_host_from_uri (device.uri)
if dnssdhost:
self.dnssd_hostname = dnssdhost;
if (hasattr (device, 'address') and self._network_host == None):
if device.address:
self._network_host = device.address
if (hasattr (device, 'hostname') and self.dnssd_hostname == None):
if device.hostname:
self.dnssd_hostname = device.hostname
def get_devices (self):
return self.devices
def get_info (self):
# If the manufacturer/model is not known, or useless (in the
# case of the hpfax backend or a dnssd URI pointing to a remote
# CUPS queue), show the device-info field instead.
if (self.devices[0].uri.startswith('ipp:') and \
self.devices[0].uri.find('/printers/') != -1) or \
((self.devices[0].uri.startswith('dnssd:') or \
self.devices[0].uri.startswith('mdns:')) and \
self.devices[0].uri.endswith('/cups')):
if not self.dnssd_hostname:
info = "%s" % self._network_host
elif not self._network_host or self._network_host.find(":") != -1:
info = "%s" % self.dnssd_hostname
else:
if self._network_host != self.dnssd_hostname:
info = "%s (%s)" % (self.dnssd_hostname, self._network_host)
else:
info = "%s" % self._network_host
elif self.mfg == '' or \
(self.mfg == "HP" and self.mdl.startswith("Fax")):
info = self._ppdippstr.get (self.devices[0].info)
else:
info = "%s %s" % (self.mfg, self.mdl)
if ((self._network_host and len (self._network_host) > 0) or \
(self.dnssd_hostname and len (self.dnssd_hostname) > 0)) and not \
((self.devices[0].uri.startswith('dnssd:') or \
self.devices[0].uri.startswith('mdns:')) and \
self.devices[0].uri.endswith('/cups')) and \
(not self._network_host or \
info.find(self._network_host) == -1) and \
(not self.dnssd_hostname or \
info.find(self.dnssd_hostname) == -1):
if not self.dnssd_hostname:
info += " (%s)" % self._network_host
elif not self._network_host:
info += " (%s)" % self.dnssd_hostname
else:
info += " (%s, %s)" % (self.dnssd_hostname, self._network_host)
elif len (self.sn) > 0:
info += " (%s)" % self.sn
return info
# User data
def set_data (self, key, value):
self._user_data[key] = value
def get_data (self, key):
return self._user_data.get (key)
def __str__ (self):
return "(description: %s)" % self.__repr__ ()
def __repr__ (self):
return "<PhysicalDevice.PhysicalDevice (%s,%s,%s)>" % (self.mfg,
self.mdl,
self.sn)
def __cmp__(self, other):
if other == None or type (other) != type (self):
return 1
if (self._network_host != None or
other._network_host != None):
return cmp (self._network_host, other._network_host)
devs = other.get_devices()
if devs:
uris = map (lambda x: x.uri, self.devices)
for dev in devs:
if dev.uri in uris:
# URI match
return 0
if (other.mfg == '' and other.mdl == '') or \
(self.mfg == '' and self.mdl == ''):
# One or other is just a backend, not a real physical device.
if other.mfg == '' and other.mdl == '' and \
self.mfg == '' and self.mdl == '':
return cmp (self.devices[0], other.devices[0])
if other.mfg == '' and other.mdl == '':
return -1
return 1
if self.mfg == '' or self.mdl.lower ().startswith (self.mfg.lower ()):
our_make_and_model = self.mdl
else:
our_make_and_model = "%s %s" % (self.mfg, self.mdl)
(our_mfg, our_mdl) = \
cupshelpers.ppds.ppdMakeModelSplit (our_make_and_model)
if other.mfg == '' or \
other.mdl.lower ().startswith (other.mfg.lower ()):
other_make_and_model = other.mdl
else:
other_make_and_model = "%s %s" % (other.mfg, other.mdl)
(other_mfg, other_mdl) = \
cupshelpers.ppds.ppdMakeModelSplit (other_make_and_model)
mfgcmp = cmp (our_mfg.lower (), other_mfg.lower ())
if mfgcmp != 0:
return mfgcmp
mdlcmp = cmp (our_mdl.lower (), other_mdl.lower ())
if mdlcmp != 0:
return mdlcmp
if self.sn == '' or other.sn == '':
return 0
return cmp (self.sn, other.sn)
if __name__ == '__main__':
import authconn
c = authconn.Connection ()
devices = cupshelpers.getDevices (c)
physicaldevices = []
for device in devices.values ():
physicaldevice = PhysicalDevice (device)
try:
i = physicaldevices.index (physicaldevice)
physicaldevices[i].add_device (device)
except ValueError:
physicaldevices.append (physicaldevice)
physicaldevices.sort ()
for physicaldevice in physicaldevices:
print physicaldevice.get_info ()
devices = physicaldevice.get_devices ()
for device in devices:
print " ", device
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