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Code Issues 32 Releases Wiki Activity

Added a CACHE_MIDDLEWARE_ANONYMOUS_ONLY setting which makes the cache ignore pages served to authenticated users. Fixes #1509 (thanks, Matt).

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Also added a FAQ entry about using this setting to avoid caching of the admin interface. 


git-svn-id: http://code.djangoproject.com/svn/django/trunk@3395 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Jacob Kaplan-Moss
2006-07-20 15:37:12 +00:00
parent 9b6d1efe77
commit 2a8a32c449
3 changed files with 28 additions and 2 deletions
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15
django/middleware/cache.py
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@@ -10,6 +10,11 @@ class CacheMiddleware(object):
Only parameter-less GET or HEAD-requests with status code 200 are cached.
If CACHE_MIDDLEWARE_ANONYMOUS_ONLY is set to True, only anonymous requests
(i.e. those node made by a logged in user) will be cached. This is a
simple and effective way of avoiding the caching of the Django admin (and
any other user-specific content).
This middleware expects that a HEAD request is answered with a response
exactly like the corresponding GET request.
@@ -23,13 +28,17 @@ class CacheMiddleware(object):
This middleware also sets ETag, Last-Modified, Expires and Cache-Control
headers on the response object.
"""
def __init__(self, cache_timeout=None, key_prefix=None):
def __init__(self, cache_timeout=None, key_prefix=None, cache_anonymous_only=None):
self.cache_timeout = cache_timeout
if cache_timeout is None:
self.cache_timeout = settings.CACHE_MIDDLEWARE_SECONDS
self.key_prefix = key_prefix
if key_prefix is None:
self.key_prefix = settings.CACHE_MIDDLEWARE_KEY_PREFIX
if cache_anonymous is None:
self.cache_anonymous_only = settings.get('CACHE_MIDDLEWARE_ANONYMOUS_ONLY', False)
else:
self.cache_anonymous_only = cache_anonymous_only
def process_request(self, request):
"Checks whether the page is already cached and returns the cached version if available."
@@ -37,6 +46,10 @@ class CacheMiddleware(object):
request._cache_update_cache = False
return None # Don't bother checking the cache.
if self.cache_anonymous_only and request.user.is_authenticated():
request._cache_update_cache = False
return None # Don't cache requests from authenticated users.
cache_key = get_cache_key(request, self.key_prefix)
if cache_key is None:
request._cache_update_cache = True