mirror of https://github.com/fail2ban/fail2ban
242 lines
8.0 KiB
Python
242 lines
8.0 KiB
Python
# emacs: -*- mode: python; py-indent-offset: 4; indent-tabs-mode: t -*-
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# vi: set ft=python sts=4 ts=4 sw=4 noet :
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# This file is part of Fail2Ban.
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#
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# Fail2Ban is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# Fail2Ban is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Fail2Ban; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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# Fail2Ban developers
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__copyright__ = "Copyright (c) 2004 Cyril Jaquier; 2012 Yaroslav Halchenko"
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__license__ = "GPL"
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import unittest
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import time
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from server.filterpoll import FilterPoll
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from server.filter import FileFilter, DNSUtils
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from server.failmanager import FailManager
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from server.failmanager import FailManagerEmpty
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class IgnoreIP(unittest.TestCase):
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def setUp(self):
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"""Call before every test case."""
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self.__filter = FileFilter(None)
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def tearDown(self):
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"""Call after every test case."""
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def testIgnoreIPOK(self):
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ipList = "127.0.0.1", "192.168.0.1", "255.255.255.255", "99.99.99.99"
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for ip in ipList:
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self.__filter.addIgnoreIP(ip)
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self.assertTrue(self.__filter.inIgnoreIPList(ip))
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# Test DNS
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self.__filter.addIgnoreIP("www.epfl.ch")
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self.assertTrue(self.__filter.inIgnoreIPList("128.178.50.12"))
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def testIgnoreIPNOK(self):
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ipList = "", "999.999.999.999", "abcdef", "192.168.0."
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for ip in ipList:
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self.__filter.addIgnoreIP(ip)
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self.assertFalse(self.__filter.inIgnoreIPList(ip))
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# Test DNS
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self.__filter.addIgnoreIP("www.epfl.ch")
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self.assertFalse(self.__filter.inIgnoreIPList("127.177.50.10"))
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class LogFile(unittest.TestCase):
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FILENAME = "testcases/files/testcase01.log"
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def setUp(self):
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"""Call before every test case."""
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self.__filter = FilterPoll(None)
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self.__filter.addLogPath(LogFile.FILENAME)
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def tearDown(self):
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"""Call after every test case."""
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pass
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#def testOpen(self):
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# self.__filter.openLogFile(LogFile.FILENAME)
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def testIsModified(self):
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self.assertTrue(self.__filter.isModified(LogFile.FILENAME))
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class GetFailures(unittest.TestCase):
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FILENAME_01 = "testcases/files/testcase01.log"
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FILENAME_02 = "testcases/files/testcase02.log"
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FILENAME_03 = "testcases/files/testcase03.log"
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FILENAME_04 = "testcases/files/testcase04.log"
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FILENAME_USEDNS = "testcases/files/testcase-usedns.log"
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def setUp(self):
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"""Call before every test case."""
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self.__filter = FileFilter(None)
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self.__filter.setActive(True)
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# TODO Test this
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#self.__filter.setTimeRegex("\S{3}\s{1,2}\d{1,2} \d{2}:\d{2}:\d{2}")
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#self.__filter.setTimePattern("%b %d %H:%M:%S")
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def tearDown(self):
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"""Call after every test case."""
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def _assertEqualEntries(self, found, output):
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"""Little helper to unify comparisons with the target entries
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and report helpful failure reports instead of millions of seconds ;)
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"""
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self.assertEqual(found[:2], output[:2])
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found_time, output_time = \
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time.localtime(found[2]),\
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time.localtime(output[2])
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self.assertEqual(found_time, output_time)
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if len(output) > 3: # match matches
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self.assertEqual(repr(found[3]), repr(output[3]))
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def _assertCorrectLastAtempt(self, filter_, output):
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"""Additional helper to wrap most common test case
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Test filter to contain target ticket
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"""
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ticket = filter_.failManager.toBan()
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attempts = ticket.getAttempt()
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date = ticket.getTime()
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ip = ticket.getIP()
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matches = ticket.getMatches()
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found = (ip, attempts, date, matches)
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self._assertEqualEntries(found, output)
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def testGetFailures01(self):
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output = ('193.168.0.128', 3, 1124013599.0,
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['Aug 14 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128\n']*3)
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self.__filter.addLogPath(GetFailures.FILENAME_01)
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self.__filter.addFailRegex("(?:(?:Authentication failure|Failed [-/\w+]+) for(?: [iI](?:llegal|nvalid) user)?|[Ii](?:llegal|nvalid) user|ROOT LOGIN REFUSED) .*(?: from|FROM) <HOST>")
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self.__filter.getFailures(GetFailures.FILENAME_01)
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self._assertCorrectLastAtempt(self.__filter, output)
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def testGetFailures02(self):
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output = ('141.3.81.106', 4, 1124013539.0,
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['Aug 14 11:%d:59 i60p295 sshd[12365]: Failed publickey for roehl from ::ffff:141.3.81.106 port 51332 ssh2\n'
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% m for m in 53, 54, 57, 58])
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self.__filter.addLogPath(GetFailures.FILENAME_02)
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self.__filter.addFailRegex("Failed .* from <HOST>")
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self.__filter.getFailures(GetFailures.FILENAME_02)
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self._assertCorrectLastAtempt(self.__filter, output)
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def testGetFailures03(self):
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output = ('203.162.223.135', 6, 1124013544.0)
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self.__filter.addLogPath(GetFailures.FILENAME_03)
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self.__filter.addFailRegex("error,relay=<HOST>,.*550 User unknown")
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self.__filter.getFailures(GetFailures.FILENAME_03)
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self._assertCorrectLastAtempt(self.__filter, output)
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def testGetFailures04(self):
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output = [('212.41.96.186', 4, 1124013600.0),
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('212.41.96.185', 4, 1124013598.0)]
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self.__filter.addLogPath(GetFailures.FILENAME_04)
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self.__filter.addFailRegex("Invalid user .* <HOST>")
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self.__filter.getFailures(GetFailures.FILENAME_04)
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try:
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for i, out in enumerate(output):
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self._assertCorrectLastAtempt(self.__filter, out)
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except FailManagerEmpty:
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pass
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def testGetFailuresUseDNS(self):
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# We should still catch failures with usedns = no ;-)
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output_yes = ('192.0.43.10', 2, 1124013539.0,
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['Aug 14 11:54:59 i60p295 sshd[12365]: Failed publickey for roehl from example.com port 51332 ssh2\n',
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'Aug 14 11:58:59 i60p295 sshd[12365]: Failed publickey for roehl from ::ffff:192.0.43.10 port 51332 ssh2\n'])
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output_no = ('192.0.43.10', 1, 1124013539.0,
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['Aug 14 11:58:59 i60p295 sshd[12365]: Failed publickey for roehl from ::ffff:192.0.43.10 port 51332 ssh2\n'])
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# Actually no exception would be raised -- it will be just set to 'no'
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#self.assertRaises(ValueError,
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# FileFilter, None, useDns='wrong_value_for_useDns')
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for useDns, output in (('yes', output_yes),
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('no', output_no),
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('warn', output_yes)):
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filter_ = FileFilter(None, useDns=useDns)
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filter_.setActive(True)
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filter_.failManager.setMaxRetry(1) # we might have just few failures
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filter_.addLogPath(GetFailures.FILENAME_USEDNS)
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filter_.addFailRegex("Failed .* from <HOST>")
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filter_.getFailures(GetFailures.FILENAME_USEDNS)
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self._assertCorrectLastAtempt(filter_, output)
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def testGetFailuresMultiRegex(self):
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output = ('141.3.81.106', 8, 1124013541.0)
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self.__filter.addLogPath(GetFailures.FILENAME_02)
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self.__filter.addFailRegex("Failed .* from <HOST>")
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self.__filter.addFailRegex("Accepted .* from <HOST>")
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self.__filter.getFailures(GetFailures.FILENAME_02)
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self._assertCorrectLastAtempt(self.__filter, output)
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def testGetFailuresIgnoreRegex(self):
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output = ('141.3.81.106', 8, 1124013541.0)
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self.__filter.addLogPath(GetFailures.FILENAME_02)
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self.__filter.addFailRegex("Failed .* from <HOST>")
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self.__filter.addFailRegex("Accepted .* from <HOST>")
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self.__filter.addIgnoreRegex("for roehl")
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self.__filter.getFailures(GetFailures.FILENAME_02)
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self.assertRaises(FailManagerEmpty, self.__filter.failManager.toBan)
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class DNSUtilsTests(unittest.TestCase):
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def testUseDns(self):
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res = DNSUtils.textToIp('www.example.com', 'no')
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self.assertEqual(res, [])
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res = DNSUtils.textToIp('www.example.com', 'warn')
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self.assertEqual(res, ['192.0.43.10'])
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res = DNSUtils.textToIp('www.example.com', 'yes')
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self.assertEqual(res, ['192.0.43.10'])
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def testTextToIp(self):
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# Test hostnames
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hostnames = [
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'www.example.com',
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'doh1.2.3.4.buga.xxxxx.yyy.invalid',
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'1.2.3.4.buga.xxxxx.yyy.invalid',
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]
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for s in hostnames:
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res = DNSUtils.textToIp(s, 'yes')
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if s == 'www.example.com':
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self.assertEqual(res, ['192.0.43.10'])
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else:
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self.assertEqual(res, [])
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