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bgneal@690
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1 """ receivers.py - Signal receivers for login related events.
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2
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bgneal@690
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3 We log these events so that fail2ban can perform rate limiting.
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4
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5 """
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6 import logging
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7
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8 from django.contrib.auth.signals import (user_logged_in, user_logged_out,
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bgneal@690
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9 user_login_failed)
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10
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11
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bgneal@690
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12 # Get the auth logger that is monitored by fail2ban:
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13 logger = logging.getLogger('auth')
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14
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15
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16 def login_callback(sender, request, user, **kwargs):
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bgneal@690
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17 """Signal callback function for a user logging in."""
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18 logger.info('User login signal: %s', user.username)
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19
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20
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21 def logout_callback(sender, request, user, **kwargs):
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22 """Signal callback function for a user logging in."""
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23
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24 if user:
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25 logger.info('User logout signal: %s', user.username)
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26
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27 def login_failed_callback(sender, credentials, **kwargs):
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28 """Signal callback for a login failure event."""
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29 logger.error('User login failed signal from %s: %s', sender,
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30 credentials.get('username'))
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31
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32
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33 user_logged_in.connect(login_callback, dispatch_uid='antispam.receivers')
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34 user_logged_out.connect(logout_callback, dispatch_uid='antispam.receivers')
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35 user_login_failed.connect(login_failed_callback,
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36 dispatch_uid='antispam.receivers')
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