Mercurial > public > sg101
annotate wiki/tasks.py @ 661:15dbe0ccda95
Prevent exceptions when viewing downloads in the admin when the file
doesn't exist on the filesystem. This is usually seen in development
but can also happen in production if the file is missing.
| author | Brian Neal <bgneal@gmail.com> |
|---|---|
| date | Tue, 14 May 2013 21:02:47 -0500 |
| parents | a4300639c6e7 |
| children | aeafbf3ecebf |
| rev | line source |
|---|---|
| bgneal@627 | 1 """ |
| bgneal@627 | 2 Celery tasks for the wiki app. |
| bgneal@627 | 3 |
| bgneal@627 | 4 """ |
| bgneal@627 | 5 import datetime |
| bgneal@627 | 6 import logging |
| bgneal@627 | 7 import time |
| bgneal@627 | 8 |
| bgneal@627 | 9 from celery.task import task |
| bgneal@627 | 10 from django.conf import settings |
| bgneal@627 | 11 import redis |
| bgneal@627 | 12 |
| bgneal@627 | 13 from core.services import get_redis_connection |
| bgneal@627 | 14 |
| bgneal@627 | 15 |
| bgneal@627 | 16 logger = logging.getLogger(__name__) |
| bgneal@627 | 17 |
| bgneal@627 | 18 |
| bgneal@627 | 19 @task |
| bgneal@627 | 20 def expire_cookies(): |
| bgneal@627 | 21 """ |
| bgneal@627 | 22 Periodically run this task to remove expired cookies from the Redis set |
| bgneal@627 | 23 that is shared between this Django application & the MoinMoin wiki for |
| bgneal@627 | 24 authentication. |
| bgneal@627 | 25 |
| bgneal@627 | 26 """ |
| bgneal@627 | 27 now = datetime.datetime.utcnow() |
| bgneal@627 | 28 cutoff = now - datetime.timedelta(seconds=settings.WIKI_COOKIE_AGE) |
| bgneal@627 | 29 min_score = time.mktime(cutoff.utctimetuple()) |
| bgneal@627 | 30 |
| bgneal@627 | 31 conn = get_redis_connection() |
| bgneal@627 | 32 |
| bgneal@627 | 33 set_name = settings.WIKI_REDIS_SET |
| bgneal@627 | 34 try: |
| bgneal@627 | 35 count = conn.zcard(set_name) |
| bgneal@627 | 36 except redis.RedisError: |
| bgneal@627 | 37 logger.error("Error getting zcard") |
| bgneal@627 | 38 return |
| bgneal@627 | 39 |
| bgneal@627 | 40 try: |
| bgneal@627 | 41 removed = conn.zremrangebyscore(set_name, 0.0, min_score) |
| bgneal@627 | 42 except redis.RedisError: |
| bgneal@627 | 43 logger.error("Error removing by score") |
| bgneal@627 | 44 return |
| bgneal@627 | 45 |
| bgneal@627 | 46 total = count - removed |
| bgneal@627 | 47 logger.info("Expire wiki cookies: removed %d, total is now %d", |
| bgneal@627 | 48 removed, total) |