def process_response(self, request, response):
key_prefix = getattr(request, '_cache_key_prefix', self.key_prefix)
cache_timeout = getattr(request, '_cache_cache_timeout', self.cache_timeout)
if isinstance(response, HttpResponseNotModified):
patch_response_headers(response, cache_timeout=cache_timeout)
return response
elif 'Expires' in response:
# Replace 'max-age' value of 'Cache-Control' header by one
# calculated from the 'Expires' header's date.
# This is necessary because of Django's `FetchFromCacheMiddleware`
# gets 'Cache-Control' header from the cache
# where 'max-age' corresponds to the moment original response
# was generated and thus may be already stale for the current time
expires = parse_http_date(response['Expires'])
timeout = expires - int(now().timestamp())
patch_cache_control(response, max_age=timeout)
with patch(self, 'key_prefix', key_prefix):
with patch(self, 'cache_timeout', cache_timeout):
return super().process_response(request, response)
def request(self, **request):
with patch(http.HttpResponse, 'wsgi_request', _dummy_setter):
with patch(http.HttpResponse, 'request', _dummy_setter):
return super().request(**request)
def request(self, **request):
with patch(http.HttpResponse, 'wsgi_request', _dummy_setter):
with patch(http.HttpResponse, 'request', _dummy_setter):
return super().request(**request)