diff options
Diffstat (limited to 'django/utils/cache.py')
| -rw-r--r-- | django/utils/cache.py | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/django/utils/cache.py b/django/utils/cache.py index 6cfd893668..58d087b079 100644 --- a/django/utils/cache.py +++ b/django/utils/cache.py @@ -134,6 +134,16 @@ def patch_vary_headers(response, newheaders): if newheader.lower() not in existing_headers] response['Vary'] = ', '.join(vary_headers + additional_headers) +def has_vary_header(response, header_query): + """ + Checks to see if the response has a given header name in its Vary header. + """ + if not response.has_header('Vary'): + return False + vary_headers = cc_delim_re.split(response['Vary']) + existing_headers = set([header.lower() for header in vary_headers]) + return header_query.lower() in existing_headers + def _i18n_cache_key_suffix(request, cache_key): """If enabled, returns the cache key ending with a locale.""" if settings.USE_I18N: |