Mercurial > public > sg101
comparison wiki/tasks.py @ 627:a4300639c6e7
Wiki integration. Create task to delete old cookie records.
Rework logic upon logout, as session will not be available. Set an
attribute on the request instead.
| author | Brian Neal <bgneal@gmail.com> |
|---|---|
| date | Mon, 12 Nov 2012 15:10:52 -0600 |
| parents | |
| children | aeafbf3ecebf |
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| 626:a6bc1e2efa63 | 627:a4300639c6e7 |
|---|---|
| 1 """ | |
| 2 Celery tasks for the wiki app. | |
| 3 | |
| 4 """ | |
| 5 import datetime | |
| 6 import logging | |
| 7 import time | |
| 8 | |
| 9 from celery.task import task | |
| 10 from django.conf import settings | |
| 11 import redis | |
| 12 | |
| 13 from core.services import get_redis_connection | |
| 14 | |
| 15 | |
| 16 logger = logging.getLogger(__name__) | |
| 17 | |
| 18 | |
| 19 @task | |
| 20 def expire_cookies(): | |
| 21 """ | |
| 22 Periodically run this task to remove expired cookies from the Redis set | |
| 23 that is shared between this Django application & the MoinMoin wiki for | |
| 24 authentication. | |
| 25 | |
| 26 """ | |
| 27 now = datetime.datetime.utcnow() | |
| 28 cutoff = now - datetime.timedelta(seconds=settings.WIKI_COOKIE_AGE) | |
| 29 min_score = time.mktime(cutoff.utctimetuple()) | |
| 30 | |
| 31 conn = get_redis_connection() | |
| 32 | |
| 33 set_name = settings.WIKI_REDIS_SET | |
| 34 try: | |
| 35 count = conn.zcard(set_name) | |
| 36 except redis.RedisError: | |
| 37 logger.error("Error getting zcard") | |
| 38 return | |
| 39 | |
| 40 try: | |
| 41 removed = conn.zremrangebyscore(set_name, 0.0, min_score) | |
| 42 except redis.RedisError: | |
| 43 logger.error("Error removing by score") | |
| 44 return | |
| 45 | |
| 46 total = count - removed | |
| 47 logger.info("Expire wiki cookies: removed %d, total is now %d", | |
| 48 removed, total) |