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fail2ban/fail2ban-regex

112 lines
3.1 KiB

#!/usr/bin/env python
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# Author: Cyril Jaquier
#
# $Revision: 300 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 300 $"
__date__ = "$Date: 2006-08-23 21:53:09 +0200 (Wed, 23 Aug 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import locale, getopt, sys, time, logging, gc
# Inserts our own modules path first in the list
# fix for bug #343821
sys.path.insert(1, "/usr/lib/fail2ban")
from version import version
from server.filter import Filter
class Fail2banRegex:
def __init__(self):
self.filter = Filter(None)
def dispUsage(self):
print "Usage: "+sys.argv[0]+" <logline> <failregex>"
print
print "Fail2Ban v" + version + " reads log file that contains password failure report"
print "and bans the corresponding IP addresses using firewall rules."
def setRegex(self, value):
self.filter.setFailRegex(value)
def testRegex(self, line):
print
try:
ret = self.filter.findFailure(line)
except IndexError:
print "Sorry, but no <host> found in regex"
return False
if len(ret) == 0:
print "Sorry, no match"
return False
else:
print "Success, the following data were found:"
timeTuple = time.localtime(ret[0][1])
print "Date: " + time.strftime("%a %b %d %H:%M:%S %Y", timeTuple)
ipList = ""
for i in ret:
ipList = ipList + " " + i[0]
print "IP :" + ipList
print
print "Date template hits:"
for template in self.filter.dateDetector.templates:
print `template.getHits()` + " hit: " + template.getName()
print
print "Benchmark. Executing 1000..."
gc.disable()
total = 0
maxValue = 0
maxPos = 0
minValue = 99999999
minPos = 0
for i in range(1000):
start = time.time()
ret = self.filter.findFailure(line)
end = time.time()
diff = (end - start) * 1000
total = total + diff
minValue = min(minValue, diff)
if minValue == diff:
minPos = i
maxValue = max(maxValue, diff)
if maxValue == diff:
maxPos = i
gc.enable()
print "Performance"
print "Avg: " + `total / 1000` + " ms"
print "Max: " + `maxValue` + " ms (Run " + `maxPos` + ")"
print "Min: " + `minValue` + " ms (Run " + `minPos` + ")"
return True
if __name__ == "__main__":
regex = Fail2banRegex()
if len(sys.argv) <> 3:
regex.dispUsage()
sys.exit(-1)
else:
regex.setRegex(sys.argv[2])
ret = regex.testRegex(sys.argv[1])
if ret:
sys.exit(0)
else:
sys.exit(-1)