/usr/share/system-config-printer/troubleshoot/ErrorLogFetch.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 | #!/usr/bin/python3
## Printing troubleshooter
## Copyright (C) 2008, 2010, 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
from tempfile import NamedTemporaryFile
import datetime
import time
from timedops import TimedOperation
from .base import *
try:
from systemd import journal
except:
journal = False
class ErrorLogFetch(Question):
def __init__ (self, troubleshooter):
Question.__init__ (self, troubleshooter, "Error log fetch")
page = self.initial_vbox (_("Retrieve Journal Entries"),
_("No system journal entries were found. "
"This may be because you are not an "
"administrator. To fetch journal entries "
"please run this command:"))
self.entry = Gtk.Entry ()
self.entry.set_editable (False)
page.pack_start (self.entry, False, False, 0)
troubleshooter.new_page (page, self)
self.persistent_answers = {}
def display (self):
answers = self.troubleshooter.answers
parent = self.troubleshooter.get_window ()
self.answers = {}
checkpoint = answers.get ('error_log_checkpoint')
cursor = answers.get ('error_log_cursor')
timestamp = answers.get ('error_log_timestamp')
if ('error_log' in self.persistent_answers or
'journal' in self.persistent_answers):
checkpoint = None
cursor = None
def fetch_log (c):
prompt = c._get_prompt_allowed ()
c._set_prompt_allowed (False)
c._connect ()
with NamedTemporaryFile (delete=False) as tmpf:
success = False
try:
c.getFile ('/admin/log/error_log', tmpf.file)
success = True
except cups.HTTPError:
try:
os.remove (tmpf.file)
except OSError:
pass
c._set_prompt_allowed (prompt)
if success:
return tmpf.file
return None
now = datetime.datetime.fromtimestamp (time.time ()).strftime ("%F %T")
self.authconn = self.troubleshooter.answers['_authenticated_connection']
if 'error_log_debug_logging_set' in answers:
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
self.answers = {}
if journal and cursor is not None:
def journal_format (x):
try:
priority = "XACEWNIDd"[x['PRIORITY']]
except (IndexError, TypeError):
priority = " "
return (priority + " " +
x['__REALTIME_TIMESTAMP'].strftime("[%m/%b/%Y:%T]") +
" " + x['MESSAGE'])
r = journal.Reader ()
r.seek_cursor (cursor)
r.add_match (_SYSTEMD_UNIT="cups.service")
self.answers['journal'] = [journal_format (x) for x in r]
if checkpoint is not None:
self.op = TimedOperation (fetch_log,
(self.authconn,),
parent=parent)
tmpfname = self.op.run ()
if tmpfname is not None:
f = open (tmpfname)
f.seek (checkpoint)
lines = f.readlines ()
os.remove (tmpfname)
self.answers = { 'error_log': [x.strip () for x in lines] }
if (len (self.answers.get ('journal', [])) +
len (self.answers.get ('error_log', []))) == 0:
cmd = ("su -c 'journalctl -u cups.service "
"--since=\"%s\" --until=\"%s\"' > troubleshoot-logs.txt" %
(timestamp, now))
self.entry.set_text (cmd)
return True
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
|