mirror of https://github.com/fail2ban/fail2ban
179 lines
5.7 KiB
Python
179 lines
5.7 KiB
Python
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# Author: Cyril Jaquier
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#
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# $Revision$
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__author__ = "Cyril Jaquier"
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__version__ = "$Revision$"
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__date__ = "$Date$"
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__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
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__license__ = "GPL"
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import time, logging
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from datetemplate import DateStrptime, DateTai64n, DateEpoch, DateISO8601
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from threading import Lock
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# Gets the instance of the logger.
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logSys = logging.getLogger("fail2ban.filter.datedetector")
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class DateDetector:
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def __init__(self):
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self.__lock = Lock()
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self.__templates = list()
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def addDefaultTemplate(self):
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self.__lock.acquire()
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try:
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# standard
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template = DateStrptime()
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template.setName("MONTH Day Hour:Minute:Second")
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template.setRegex("\S{3}\s{1,2}\d{1,2} \d{2}:\d{2}:\d{2}")
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template.setPattern("%b %d %H:%M:%S")
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self.__templates.append(template)
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# asctime
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template = DateStrptime()
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template.setName("WEEKDAY MONTH Day Hour:Minute:Second Year")
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template.setRegex("\S{3} \S{3}\s{1,2}\d{1,2} \d{2}:\d{2}:\d{2} \d{4}")
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template.setPattern("%a %b %d %H:%M:%S %Y")
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self.__templates.append(template)
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# asctime without year
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template = DateStrptime()
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template.setName("WEEKDAY MONTH Day Hour:Minute:Second")
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template.setRegex("\S{3} \S{3}\s{1,2}\d{1,2} \d{2}:\d{2}:\d{2}")
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template.setPattern("%a %b %d %H:%M:%S")
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self.__templates.append(template)
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# simple date
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template = DateStrptime()
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template.setName("Year/Month/Day Hour:Minute:Second")
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template.setRegex("\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2}")
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template.setPattern("%Y/%m/%d %H:%M:%S")
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self.__templates.append(template)
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# simple date too (from x11vnc)
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template = DateStrptime()
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template.setName("Day/Month/Year Hour:Minute:Second")
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template.setRegex("\d{2}/\d{2}/\d{4} \d{2}:\d{2}:\d{2}")
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template.setPattern("%d/%m/%Y %H:%M:%S")
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self.__templates.append(template)
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# Apache format [31/Oct/2006:09:22:55 -0000]
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template = DateStrptime()
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template.setName("Day/MONTH/Year:Hour:Minute:Second")
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template.setRegex("\d{2}/\S{3}/\d{4}:\d{2}:\d{2}:\d{2}")
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template.setPattern("%d/%b/%Y:%H:%M:%S")
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self.__templates.append(template)
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# CPanel 05/20/2008:01:57:39
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template = DateStrptime()
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template.setName("Month/Day/Year:Hour:Minute:Second")
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template.setRegex("\d{2}/\d{2}/\d{4}:\d{2}:\d{2}:\d{2}")
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template.setPattern("%m/%d/%Y:%H:%M:%S")
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self.__templates.append(template)
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# Exim 2006-12-21 06:43:20
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template = DateStrptime()
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template.setName("Year-Month-Day Hour:Minute:Second")
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template.setRegex("\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}")
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template.setPattern("%Y-%m-%d %H:%M:%S")
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self.__templates.append(template)
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# named 26-Jul-2007 15:20:52.252
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template = DateStrptime()
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template.setName("Day-MONTH-Year Hour:Minute:Second[.Millisecond]")
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template.setRegex("\d{2}-\S{3}-\d{4} \d{2}:\d{2}:\d{2}")
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template.setPattern("%d-%b-%Y %H:%M:%S")
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self.__templates.append(template)
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# 17-07-2008 17:23:25
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template = DateStrptime()
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template.setName("Day-Month-Year Hour:Minute:Second")
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template.setRegex("\d{2}-\d{2}-\d{4} \d{2}:\d{2}:\d{2}")
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template.setPattern("%d-%m-%Y %H:%M:%S")
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self.__templates.append(template)
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# TAI64N
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template = DateTai64n()
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template.setName("TAI64N")
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self.__templates.append(template)
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# Epoch
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template = DateEpoch()
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template.setName("Epoch")
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self.__templates.append(template)
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# ISO 8601
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template = DateISO8601()
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template.setName("ISO 8601")
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self.__templates.append(template)
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# Only time information in the log
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template = DateStrptime()
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template.setName("Hour:Minute:Second")
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template.setRegex("^\d{2}:\d{2}:\d{2}")
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template.setPattern("%H:%M:%S")
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self.__templates.append(template)
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# <09/16/08@05:03:30>
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template = DateStrptime()
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template.setName("<Month/Day/Year@Hour:Minute:Second>")
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template.setRegex("^<\d{2}/\d{2}/\d{2}@\d{2}:\d{2}:\d{2}>")
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template.setPattern("<%m/%d/%y@%H:%M:%S>")
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self.__templates.append(template)
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finally:
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self.__lock.release()
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def getTemplates(self):
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return self.__templates
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def matchTime(self, line):
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self.__lock.acquire()
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try:
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for template in self.__templates:
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match = template.matchDate(line)
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if not match == None:
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return match
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return None
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finally:
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self.__lock.release()
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def getTime(self, line):
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self.__lock.acquire()
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try:
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for template in self.__templates:
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try:
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date = template.getDate(line)
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if date == None:
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continue
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return date
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except ValueError:
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pass
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return None
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finally:
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self.__lock.release()
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def getUnixTime(self, line):
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date = self.getTime(line)
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if date == None:
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return None
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else:
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return time.mktime(date)
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##
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# Sort the template lists using the hits score. This method is not called
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# in this object and thus should be called from time to time.
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def sortTemplate(self):
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self.__lock.acquire()
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try:
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logSys.debug("Sorting the template list")
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self.__templates.sort(lambda x, y: cmp(x.getHits(), y.getHits()))
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self.__templates.reverse()
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finally:
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self.__lock.release()
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