diff options
Diffstat (limited to 'django/utils/cache.py')
| -rw-r--r-- | django/utils/cache.py | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/django/utils/cache.py b/django/utils/cache.py index 90292ce4da..2dd2c7796c 100644 --- a/django/utils/cache.py +++ b/django/utils/cache.py @@ -4,9 +4,7 @@ managing the "Vary" header of responses. It includes functions to patch the header of response objects directly and decorators that change functions to do that header-patching themselves. -For information on the Vary header, see: - - https://tools.ietf.org/html/rfc7231#section-7.1.4 +For information on the Vary header, see RFC 9110 Section 12.5.5. Essentially, the "Vary" HTTP header defines which headers a cache should take into account when building its cache key. Requests with the same path but @@ -139,7 +137,7 @@ def _precondition_failed(request): def _not_modified(request, response=None): new_response = HttpResponseNotModified() if response: - # Preserve the headers required by Section 4.1 of RFC 7232, as well as + # Preserve the headers required by RFC 9110 Section 15.4.5, as well as # Last-Modified. for header in ( "Cache-Control", @@ -177,7 +175,9 @@ def get_conditional_response(request, etag=None, last_modified=None, response=No if_modified_since = request.META.get("HTTP_IF_MODIFIED_SINCE") if_modified_since = if_modified_since and parse_http_date_safe(if_modified_since) - # Step 1 of section 6 of RFC 7232: Test the If-Match precondition. + # Evaluation of request preconditions below follows RFC 9110 Section + # 13.2.2. + # Step 1: Test the If-Match precondition. if if_match_etags and not _if_match_passes(etag, if_match_etags): return _precondition_failed(request) @@ -212,7 +212,7 @@ def get_conditional_response(request, etag=None, last_modified=None, response=No def _if_match_passes(target_etag, etags): """ - Test the If-Match comparison as defined in section 3.1 of RFC 7232. + Test the If-Match comparison as defined in RFC 9110 Section 13.1.1. """ if not target_etag: # If there isn't an ETag, then there can't be a match. @@ -233,15 +233,15 @@ def _if_match_passes(target_etag, etags): def _if_unmodified_since_passes(last_modified, if_unmodified_since): """ - Test the If-Unmodified-Since comparison as defined in section 3.4 of - RFC 7232. + Test the If-Unmodified-Since comparison as defined in RFC 9110 Section + 13.1.4. """ return last_modified and last_modified <= if_unmodified_since def _if_none_match_passes(target_etag, etags): """ - Test the If-None-Match comparison as defined in section 3.2 of RFC 7232. + Test the If-None-Match comparison as defined in RFC 9110 Section 13.1.2. """ if not target_etag: # If there isn't an ETag, then there isn't a match. @@ -260,7 +260,8 @@ def _if_none_match_passes(target_etag, etags): def _if_modified_since_passes(last_modified, if_modified_since): """ - Test the If-Modified-Since comparison as defined in section 3.3 of RFC 7232. + Test the If-Modified-Since comparison as defined in RFC 9110 Section + 13.1.3. """ return not last_modified or last_modified > if_modified_since |