Andrew's git - logparse.git/blob - logparse/parsers/sshd.py

   1#
   2#   sshd.py
   3#   
   4#   Find number of ssh logins and authorised users
   5#
   6
   7import re
   8
   9from ..formatting import *
  10from ..util import readlog, resolve
  11from .. import config
  12
  13import logging
  14logger = logging.getLogger(__name__)
  15
  16def parse_log():
  17    logger.debug("Starting sshd section")
  18    section = Section("ssh")
  19    logger.debug("Searching for matches in {0}".format(config.prefs['logs']['auth']))
  20    matches = re.findall('.*sshd.*Accepted publickey for .* from .*', readlog(config.prefs['logs']['auth']))    # get all logins
  21    logger.debug("Finished searching for logins")
  22    
  23    users = []  # list of users with format [username, number of logins] for each item
  24    data = []
  25    num = sum(1 for x in matches)     # total number of logins
  26    for match in matches:
  27        entry = re.search('^.*publickey\sfor\s(\w*)\sfrom\s(\S*)', match)  # [('user', 'ip')]
  28
  29        user = entry.group(1)
  30        ip = entry.group(2)
  31
  32        userhost = user + '@' + resolve(ip, fqdn=config.prefs['sshd']['resolve-domains'])
  33        exists = [i for i, item in enumerate(users) if re.search(userhost, item[0])]
  34        if (exists == []):
  35            users.append([userhost, 1])
  36        else:
  37            users[exists[0]][1] += 1
  38    logger.debug("Parsed list of authorised users")
  39
  40    auth_data = Data(subtitle=plural('login', num) + ' from')
  41
  42    if (len(users) == 1):             # if only one user, do not display no of logins for this user
  43        logger.debug("found " + str(len(matches)) + " ssh logins for user " + users[0][0])
  44        auth_data.subtitle += ' ' + users[0][0]
  45    else:
  46        for user in users:
  47            auth_data.items.append(user[0] + ' (' + str(user[1]) + ')')
  48            auth_data.orderbyfreq()
  49            auth_data.truncl(config.prefs['maxlist'])
  50        logger.debug("found " + str(len(matches)) + " ssh logins for users " + str(data))
  51    section.append_data(auth_data)
  52    logger.info("Finished sshd section")
  53    return section