/usr/share/system-config-printer/troubleshoot/CheckNetworkServerSanity.py is in system-config-printer-gnome 1.5.7+20160212-0ubuntu2.
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 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 | #!/usr/bin/python3
## Printing troubleshooter
## Copyright (C) 2008, 2009, 2010, 2011, 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 os
import smburi
import socket
import subprocess
from timedops import TimedSubprocess, TimedOperation
from .base import *
try:
import smbc
except:
pass
class CheckNetworkServerSanity(Question):
def __init__ (self, troubleshooter):
Question.__init__ (self, troubleshooter, "Check network server sanity")
troubleshooter.new_page (Gtk.Label (), self)
def display (self):
# Collect useful information.
self.answers = {}
answers = self.troubleshooter.answers
if ('remote_server_name' not in answers and
'remote_server_ip_address' not in answers):
return False
parent = self.troubleshooter.get_window ()
server_name = answers['remote_server_name']
server_port = answers.get('remote_server_port', 631)
try_connect = False
if server_name:
# Try resolving the hostname.
try:
ai = socket.getaddrinfo (server_name, server_port)
resolves = [family_socktype_proto_canonname_sockaddr[4][0] for
family_socktype_proto_canonname_sockaddr in ai]
try_connect = True
except socket.gaierror:
resolves = False
self.answers['remote_server_name_resolves'] = resolves
ipaddr = answers.get ('remote_server_ip_address', '')
if resolves:
if ipaddr:
try:
resolves.index (ipaddr)
except ValueError:
# The IP address given doesn't match the server name.
# Use the IP address instead of the name.
server_name = ipaddr
try_connect = True
elif ipaddr:
server_name = ipaddr
try_connect = True
else:
server_name = answers['remote_server_ip_address']
# Validate it.
try:
ai = socket.getaddrinfo (server_name, server_port)
resolves = [family_socktype_proto_canonname_sockaddr1[4][0] for
family_socktype_proto_canonname_sockaddr1 in ai]
except socket.gaierror:
resolves = False
self.answers['remote_server_name_resolves'] = resolves
try_connect = True
self.answers['remote_server_try_connect'] = server_name
if (try_connect and
answers.get ('cups_device_uri_scheme', 'ipp') in ['ipp',
'http',
'https']):
if answers.get ('cups_device_uri_scheme') == 'https':
encryption = cups.HTTP_ENCRYPT_REQUIRED
else:
encryption = cups.HTTP_ENCRYPT_IF_REQUESTED
try:
self.op = TimedOperation (cups.Connection,
kwargs={"host": server_name,
"port": server_port,
"encryption": encryption},
parent=parent)
c = self.op.run ()
ipp_connect = True
except RuntimeError:
ipp_connect = False
self.answers['remote_server_connect_ipp'] = ipp_connect
if ipp_connect:
try:
self.op = TimedOperation (c.getPrinters, parent=parent)
self.op.run ()
cups_server = True
except:
cups_server = False
self.answers['remote_server_cups'] = cups_server
if cups_server:
cups_printer_dict = answers.get ('cups_printer_dict', {})
uri = cups_printer_dict.get ('device-uri', None)
if uri:
try:
self.op = TimedOperation (c.getPrinterAttributes,
kwargs={"uri": uri},
parent=parent)
attr = self.op.run ()
self.answers['remote_cups_queue_attributes'] = attr
except:
pass
if try_connect:
# Try to see if we can connect using smbc.
context = None
try:
context = smbc.Context ()
name = self.answers['remote_server_try_connect']
self.op = TimedOperation (context.opendir,
args=("smb://%s/" % name,),
parent=parent)
dir = self.op.run ()
self.op = TimedOperation (dir.getdents, parent=parent)
shares = self.op.run ()
self.answers['remote_server_smb'] = True
self.answers['remote_server_smb_shares'] = shares
except NameError:
# No smbc support
pass
except RuntimeError as e:
(e, s) = e.args
self.answers['remote_server_smb_shares'] = (e, s)
if context is not None and 'cups_printer_dict' in answers:
uri = answers['cups_printer_dict'].get ('device-uri', '')
u = smburi.SMBURI (uri)
(group, host, share, user, password) = u.separate ()
accessible = False
try:
self.op = TimedOperation (context.open,
args=("smb://%s/%s" % (host,
share),
os.O_RDWR,
0o777),
parent=parent)
f = self.op.run ()
accessible = True
except RuntimeError as e:
(e, s) = e.args
accessible = (e, s)
self.answers['remote_server_smb_share_anon_access'] = accessible
# Try traceroute if we haven't already.
if (try_connect and
'remote_server_traceroute' not in answers):
try:
self.op = TimedSubprocess (parent=parent, close_fds=True,
args=['traceroute', '-w', '1',
server_name],
stdin=subprocess.DEVNULL,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
self.answers['remote_server_traceroute'] = self.op.run ()
except:
# Problem executing command.
pass
return False
def collect_answer (self):
return self.answers
def cancel_operation (self):
self.op.cancel ()
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