/usr/share/system-config-printer/troubleshoot/ErrorLogFetch.py is in system-config-printer-gnome 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 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 | #!/usr/bin/python
## Printing troubleshooter
## Copyright (C) 2008, 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.
from gi.repository import Gtk
import cups
import os
import tempfile
import time
from timedops import TimedOperation
from base import *
class ErrorLogFetch(Question):
def __init__ (self, troubleshooter):
Question.__init__ (self, troubleshooter, "Error log fetch")
troubleshooter.new_page (Gtk.Label (), self)
self.persistent_answers = {}
def display (self):
answers = self.troubleshooter.answers
parent = self.troubleshooter.get_window ()
self.answers = {}
try:
checkpoint = answers['error_log_checkpoint']
except KeyError:
checkpoint = None
if self.persistent_answers.has_key ('error_log'):
checkpoint = None
def fetch_log (c):
prompt = c._get_prompt_allowed ()
c._set_prompt_allowed (False)
c._connect ()
(tmpfd, tmpfname) = tempfile.mkstemp ()
os.close (tmpfd)
success = False
try:
c.getFile ('/admin/log/error_log', tmpfname)
success = True
except cups.HTTPError:
try:
os.remove (tmpfname)
except OSError:
pass
c._set_prompt_allowed (prompt)
if success:
return tmpfname
return None
self.authconn = self.troubleshooter.answers['_authenticated_connection']
if answers.has_key ('error_log_debug_logging_set'):
try:
self.op = TimedOperation (self.authconn.adminGetServerSettings,
parent=parent)
settings = self.op.run ()
except cups.IPPError:
return False
settings[cups.CUPS_SERVER_DEBUG_LOGGING] = '0'
orig_settings = answers['cups_server_settings']
settings['MaxLogSize'] = orig_settings.get ('MaxLogSize', '2000000')
success = False
def set_settings (connection, settings):
connection.adminSetServerSettings (settings)
# Now reconnect.
attempt = 1
while attempt <= 5:
try:
time.sleep (1)
connection._connect ()
break
except RuntimeError:
# Connection failed
attempt += 1
try:
self.op = TimedOperation (set_settings,
(self.authconn, settings),
parent=parent)
self.op.run ()
self.persistent_answers['error_log_debug_logging_unset'] = True
except cups.IPPError:
pass
if checkpoint != None:
self.op = TimedOperation (fetch_log,
(self.authconn,),
parent=parent)
tmpfname = self.op.run ()
if tmpfname != None:
f = file (tmpfname)
f.seek (checkpoint)
lines = f.readlines ()
os.remove (tmpfname)
self.answers = { 'error_log': map (lambda x: x.strip (),
lines) }
return False
def collect_answer (self):
answers = self.persistent_answers.copy ()
answers.update (self.answers)
return answers
def cancel_operation (self):
self.op.cancel ()
# Abandon the CUPS connection and make another.
answers = self.troubleshooter.answers
factory = answers['_authenticated_connection_factory']
self.authconn = factory.get_connection ()
self.answers['_authenticated_connection'] = self.authconn
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