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filter: testing proper handling after time-drift or time-jump (DST-hole, NTP time correction backwards, etc), gh-2566

pull/2573/head
sebres 2019-11-25 01:46:07 +01:00
parent e4c2f303bd
commit d5144e380e
1 changed files with 44 additions and 6 deletions
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50
fail2ban/tests/filtertestcase.py
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@ -387,12 +387,50 @@ class IgnoreIP(LogCaptureTestCase):
def testIgnoreInProcessLine(self): def testIgnoreInProcessLine(self):
setUpMyTime() setUpMyTime()
self.filter.addIgnoreIP('192.168.1.0/25') try:
self.filter.addFailRegex('<HOST>') self.filter.addIgnoreIP('192.168.1.0/25')
self.filter.setDatePattern(r'{^LN-BEG}EPOCH') self.filter.addFailRegex('<HOST>')
self.filter.processLineAndAdd('1387203300.222 192.168.1.32') self.filter.setDatePattern(r'{^LN-BEG}EPOCH')
self.assertLogged('Ignore 192.168.1.32') self.filter.processLineAndAdd('1387203300.222 192.168.1.32')
tearDownMyTime() self.assertLogged('Ignore 192.168.1.32')
finally:
tearDownMyTime()
def testTimeJump(self):
try:
self.filter.addFailRegex('^<HOST>')
self.filter.setDatePattern(r'{^LN-BEG}%Y-%m-%d %H:%M:%S(?:\s*%Z)?\s')
self.filter.setFindTime(10); # max 10 seconds back
#
self.pruneLog('[phase 1] DST time jump')
# check local time jump (DST hole):
MyTime.setTime(1572137999)
self.filter.processLineAndAdd('2019-10-27 02:59:59 192.0.2.5'); # +1 = 1
MyTime.setTime(1572138000)
self.filter.processLineAndAdd('2019-10-27 02:00:00 192.0.2.5'); # +1 = 2
MyTime.setTime(1572138001)
self.filter.processLineAndAdd('2019-10-27 02:00:01 192.0.2.5'); # +1 = 3
self.assertLogged(
'Current failures from 1 IPs (IP:count): 192.0.2.5:1',
'Current failures from 1 IPs (IP:count): 192.0.2.5:2',
'Current failures from 1 IPs (IP:count): 192.0.2.5:3',
"Total # of detected failures: 3.", all=True, wait=True)
self.assertNotLogged('Ignore line')
#
self.pruneLog('[phase 2] UTC time jump (NTP correction)')
# check time drifting backwards (NTP correction):
MyTime.setTime(1572210000)
self.filter.processLineAndAdd('2019-10-27 22:00:00 CET 192.0.2.6'); # +1 = 1
MyTime.setTime(1572200000)
self.filter.processLineAndAdd('2019-10-27 22:00:01 CET 192.0.2.6'); # +1 = 2 (logged before correction)
self.filter.processLineAndAdd('2019-10-27 19:13:20 CET 192.0.2.6'); # +1 = 3 (logged after correction)
self.filter.processLineAndAdd('2019-10-27 19:13:21 CET 192.0.2.6'); # +1 = 4
self.assertLogged(
'192.0.2.6:1', '192.0.2.6:2', '192.0.2.6:3', '192.0.2.6:4',
"Total # of detected failures: 7.", all=True, wait=True)
self.assertNotLogged('Ignore line')
finally:
tearDownMyTime()
def testAddAttempt(self): def testAddAttempt(self):
self.filter.setMaxRetry(3) self.filter.setMaxRetry(3)