149 lines
4.3 KiB
Python
149 lines
4.3 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright Grégory Soutadé 2015
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# This file is part of iwla
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# iwla 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 3 of the License, or
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# (at your option) any later version.
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#
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# iwla 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 iwla. If not, see <http://www.gnu.org/licenses/>.
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#
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import re
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import logging
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import inspect
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from iwla import IWLA
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from iplugin import IPlugin
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import awstats_data
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"""
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Pre analysis hook
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Filter robots
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Plugin requirements :
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None
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Conf values needed :
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None
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Output files :
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None
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Statistics creation :
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None
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Statistics update :
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visits :
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remote_addr =>
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robot
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keep_requests
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Statistics deletion :
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None
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"""
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class IWLAPreAnalysisRobots(IPlugin):
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def __init__(self, iwla):
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super(IWLAPreAnalysisRobots, self).__init__(iwla)
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self.API_VERSION = 1
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def load(self):
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self.awstats_robots = list(map(lambda x : re.compile(('.*%s.*') % (x), re.IGNORECASE), awstats_data.robots))
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self.robot_re = re.compile(r'.*bot.*', re.IGNORECASE)
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self.crawl_re = re.compile(r'.*crawl.*', re.IGNORECASE)
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self.logger = logging.getLogger(self.__class__.__name__)
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return True
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def _setRobot(self, k, super_hit):
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callerframerecord = inspect.stack()[1]
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frame = callerframerecord[0]
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info = inspect.getframeinfo(frame)
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self.logger.debug('%s is a robot (caller %s:%d)' % (k, info.function, info.lineno))
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super_hit['robot'] = 1
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super_hit['keep_requests'] = False
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# Basic rule to detect robots
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def hook(self):
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hits = self.iwla.getCurrentVisits()
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for (k, super_hit) in hits.items():
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if super_hit['robot']:
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self.logger.debug('%s is a robot' % (k))
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continue
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isRobot = False
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referers = 0
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first_page = super_hit['requests'][0]
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if self.robot_re.match(first_page['http_user_agent']) or\
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self.crawl_re.match(first_page['http_user_agent']):
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self.logger.debug(first_page['http_user_agent'])
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self._setRobot(k, super_hit)
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continue
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for r in self.awstats_robots:
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if r.match(first_page['http_user_agent']):
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isRobot = True
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break
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if isRobot:
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self.logger.debug(first_page['http_user_agent'])
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self._setRobot(k, super_hit)
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continue
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# 1) no pages view --> robot
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# if not super_hit['viewed_pages'][0]:
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# super_hit['robot'] = 1
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# continue
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# 2) Less than 1 hit per page
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if super_hit['viewed_pages'][0] and (super_hit['viewed_hits'][0] < super_hit['viewed_pages'][0]):
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self._setRobot(k, super_hit)
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continue
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# 3) no pages and not hit --> robot
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if not super_hit['viewed_hits'][0] and not super_hit['viewed_pages'][0]:
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self._setRobot(k, super_hit)
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continue
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not_found_pages = 0
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for hit in super_hit['requests']:
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# 5) /robots.txt read
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if hit['extract_request']['http_uri'].endswith('/robots.txt'):
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self._setRobot(k, super_hit)
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break
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if int(hit['status']) == 404 or int(hit['status']) == 403:
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not_found_pages += 1
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# 6) Any referer for hits
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if not hit['is_page'] and hit['http_referer']:
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referers += 1
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if isRobot:
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self._setRobot(k, super_hit)
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continue
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# 7) more than 10 404/403 pages
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if not_found_pages > 10:
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self._setRobot(k, super_hit)
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continue
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if not super_hit['viewed_pages'][0] and \
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(super_hit['viewed_hits'][0] and not referers):
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self._setRobot(k, super_hit)
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continue
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