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# emacs: -*- mode: python; py-indent-offset: 4; indent-tabs-mode: t -*-
# vi: set ft=python sts=4 ts=4 sw=4 noet :
# This file is part of Fail2Ban.
#
# Fail2Ban 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.
#
# Fail2Ban 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 Fail2Ban; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
# Author: Cyril Jaquier
#
__author__ = "Cyril Jaquier"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import unittest, calendar, datetime, re, pprint
from server.datedetector import DateDetector
from server.datetemplate import DateTemplate
class DateDetectorTest(unittest.TestCase):
def setUp(self):
"""Call before every test case."""
self.__datedetector = DateDetector()
self.__datedetector.addDefaultTemplate()
def tearDown(self):
"""Call after every test case."""
def testGetEpochTime(self):
log = "1138049999 [sshd] error: PAM: Authentication failure"
date = [2006, 1, 23, 21, 59, 59, 0, 23, 0]
dateUnix = 1138049999.0
self.assertEqual(self.__datedetector.getTime(log), date)
self.assertEqual(self.__datedetector.getUnixTime(log), dateUnix)
def testGetTime(self):
log = "Jan 23 21:59:59 [sshd] error: PAM: Authentication failure"
date = [2005, 1, 23, 21, 59, 59, 6, 23, -1]
dateUnix = 1106513999.0
# yoh: testing only up to 6 elements, since the day of the week
# is not correctly determined atm, since year is not present
# in the log entry. Since this doesn't effect the operation
# of fail2ban -- we just ignore incorrect day of the week
self.assertEqual(self.__datedetector.getTime(log)[:6], date[:6])
self.assertEqual(self.__datedetector.getUnixTime(log), dateUnix)
def testVariousTimes(self):
"""Test detection of various common date/time formats f2b should understand
"""
date = [2005, 1, 23, 21, 59, 59, 6, 23, -1]
dateUnix = 1106513999.0
for anchored, sdate in (
(False, "Jan 23 21:59:59"),
(False, "Sun Jan 23 21:59:59 2005"),
(False, "Sun Jan 23 21:59:59"),
(False, "2005/01/23 21:59:59"),
(False, "2005.01.23 21:59:59"),
(False, "23/01/2005 21:59:59"),
(False, "23/01/05 21:59:59"),
(False, "23/Jan/2005:21:59:59"),
(False, "01/23/2005:21:59:59"),
(False, "2005-01-23 21:59:59"),
(False, "2005-01-23 21:59:59,099"), # proftpd
(False, "23-Jan-2005 21:59:59"),
(False, "23-01-2005 21:59:59"),
(False, "01-23-2005 21:59:59.252"), # reported on f2b, causes Feb29 fix to break
(False, "@4000000041f4104f00000000"), # TAI64N
(False, "2005-01-23T21:59:59.252Z"), #ISO 8601
(False, "2005-01-23T21:59:59-05:00Z"), #ISO 8601 with TZ
(True, "<01/23/05@21:59:59>"),
(True, "050123 21:59:59"), # MySQL
(True, "Jan-23-05 21:59:59"), # ASSP like
(True, "1106513999"), # Regular epoch
(True, "1106513999.123"), # Regular epoch with millisec
(False, "audit(1106513999.123:987)"), # SELinux
):
for should_match, prefix in ((True, ""),
(not anchored, "bogus-prefix ")):
ldate = prefix + sdate # logged date
log = ldate + "[sshd] error: PAM: Authentication failure"
# exclude
# yoh: on [:6] see in above test
logtime = self.__datedetector.getTime(log)
if should_match:
self.assertNotEqual(logtime, None, "getTime retrieved nothing for %r" % ldate)
self.assertEqual(logtime[:6], date[:6], "getTime comparison failure for %r: \"%s\" is not \"%s\"" % (ldate, logtime[:6], date[:6]))
self.assertEqual(self.__datedetector.getUnixTime(log), dateUnix, "getUnixTime failure for %r: \"%s\" is not \"%s\"" % (ldate, logtime[:6], date[:6]))
else:
self.assertEqual(logtime, None, "getTime should have not matched for %r Got: %s" % (ldate, logtime))
def testStableSortTemplate(self):
old_names = [x.getName() for x in self.__datedetector.getTemplates()]
self.__datedetector.sortTemplate()
# If there were no hits -- sorting should not change the order
for old_name, n in zip(old_names, self.__datedetector.getTemplates()):
self.assertEqual(old_name, n.getName()) # "Sort must be stable"
def testAllUniqueTemplateNames(self):
self.assertRaises(ValueError, self.__datedetector._appendTemplate,
self.__datedetector.getTemplates()[0])
def testFullYearMatch_gh130(self):
# see https://github.com/fail2ban/fail2ban/pull/130
# yoh: unfortunately this test is not really effective to reproduce the
# situation but left in place to assure consistent behavior
m1 = [2012, 10, 11, 2, 37, 17]
self.assertEqual(
self.__datedetector.getTime('2012/10/11 02:37:17 [error] 18434#0')[:6],
m1)
self.__datedetector.sortTemplate()
# confuse it with year being at the end
for i in xrange(10):
self.assertEqual(
self.__datedetector.getTime('11/10/2012 02:37:17 [error] 18434#0')[:6],
m1)
self.__datedetector.sortTemplate()
# and now back to the original
self.assertEqual(
self.__datedetector.getTime('2012/10/11 02:37:17 [error] 18434#0')[:6],
m1)
def testDateDetectorTemplateOverlap(self):
patterns = [template.getPattern()
for template in self.__datedetector.getTemplates()
if hasattr(template, "getPattern")]
year = 2008 # Leap year, 08 for %y can be confused with both %d and %m
def iterDates(year):
for month in xrange(1, 13):
for day in xrange(2, calendar.monthrange(year, month)[1]+1, 9):
for hour in xrange(0, 24, 6):
for minute in xrange(0, 60, 15):
for second in xrange(0, 60, 15): # Far enough?
yield datetime.datetime(
year, month, day, hour, minute, second)
overlapedTemplates = set()
for date in iterDates(year):
for pattern in patterns:
datestr = date.strftime(pattern)
datestrs = set([
datestr,
re.sub(r"(\s)0", r"\1 ", datestr),
re.sub(r"(\s)0", r"\1", datestr)])
for template in self.__datedetector.getTemplates():
template.resetHits()
for datestr in datestrs:
if template.matchDate(datestr): # or getDate?
template.incHits()
matchedTemplates = [template
for template in self.__datedetector.getTemplates()
if template.getHits() > 0]
assert matchedTemplates != [] # Should match at least one
if len(matchedTemplates) > 1:
overlapedTemplates.add((pattern, tuple(sorted(template.getName()
for template in matchedTemplates))))
if overlapedTemplates:
print "WARNING: The following date templates overlap:"
pprint.pprint(overlapedTemplates)
def testDateTemplate(self):
t = DateTemplate()
t.setRegex('^a{3,5}b?c*$')
self.assertEqual(t.getRegex(), '^a{3,5}b?c*$')
self.assertRaises(Exception, t.getDate, '')
self.assertEqual(t.matchDate('aaaac').group(), 'aaaac')
# def testDefaultTempate(self):
# self.__datedetector.setDefaultRegex("^\S{3}\s{1,2}\d{1,2} \d{2}:\d{2}:\d{2}")
# self.__datedetector.setDefaultPattern("%b %d %H:%M:%S")
#
# log = "Jan 23 21:59:59 [sshd] error: PAM: Authentication failure"
# date = [2005, 1, 23, 21, 59, 59, 1, 23, -1]
# dateUnix = 1106513999.0
#
# self.assertEqual(self.__datedetector.getTime(log), date)
# self.assertEqual(self.__datedetector.getUnixTime(log), dateUnix)