annotate wiki/signals.py @ 697:67f8d49a9377
Cleaned up the code a bit.
Separated the S3 stuff out into its own class.
This class maybe should be in core.
Still want to do some kind of context manager around the temporary file we are
creating to ensure it gets deleted.
| author |
Brian Neal <bgneal@gmail.com> |
| date |
Sun, 08 Sep 2013 21:02:58 -0500 |
| parents |
63603e931503 |
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| rev |
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1 """Signal handlers for wiki integration.
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2
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3 We are interested in hearing about users logging in and out, so we can create
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4 and destroy an external cookie to allow access to the wiki.
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5
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6 """
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7 import logging
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8
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9 from django.contrib.auth.signals import user_logged_in, user_logged_out
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10
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11 from wiki.constants import SESSION_SET_MEMBER
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12
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13 logger = logging.getLogger(__name__)
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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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17 """Signal callback function for a user logging in.
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18
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19 Sets a flag for the middleware to create an external cookie.
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20
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21 """
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22 logger.info('User login: %s', user.username)
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23
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24 request.wiki_set_cookie = True
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25
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26
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27 def logout_callback(sender, request, user, **kwargs):
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28 """Signal callback function for a user logging in.
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29
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30 Sets a flag for the middleware to delete the external cookie.
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31
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32 Since the user is about to logout, her session will be wiped out after
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33 this function returns. This forces us to set an attribute on the request
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34 object so that the response middleware can delete the wiki's cookie.
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35
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36 """
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37 if user:
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38 logger.info('User logout: %s', user.username)
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39
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40 # Remember what Redis set member to delete by adding an attribute to the
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41 # request object:
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42 request.wiki_delete_cookie = request.session.get(SESSION_SET_MEMBER)
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43
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44
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45 user_logged_in.connect(login_callback, dispatch_uid='wiki.signals.login')
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46 user_logged_out.connect(logout_callback, dispatch_uid='wiki.signals.logout')
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