https://issues.apache.org/bugzilla/show_bug.cgi?id=56881
Bug ID: 56881
Summary: mod_cache can send a 304 to unconditional req when
handling a contradiction on revalidation
Product: Apache httpd-2
Version: 2.4.10
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: mod_cache
Assignee: [email protected]
Reporter: [email protected]
I am seeing that even though this snippet below unsets the conditional headers,
something about r->status being 304 at the start of the internal redirect
causes the 304 to be returned
I set r->status to 333 as a stupid test right after unsetting conditionals and
could see the 333 being traced as a response code in the same path -- so the
304 is not due to the r->headers_in but some lingering r->status.
if (reason && r->status == HTTP_NOT_MODIFIED && cache->stale_handle) {
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(02473)
"cache: %s responded with an uncacheable 304, "
"retrying the request. Reason: %s",
r->unparsed_uri, reason);
/* we've got a cache conditional miss! tell anyone who cares */
cache_run_cache_status(cache->handle, r, r->headers_out, AP_CACHE_MISS,
apr_psprintf(r->pool,
"conditional cache miss: 304 was uncacheable, entity
removed: %s",
reason));
/* remove the cached entity immediately, we might cache it again */
ap_remove_output_filter(cache->remove_url_filter);
cache_remove_url(cache, r);
/* let someone else attempt to cache */
cache_remove_lock(conf, cache, r, NULL);
/* remove this filter from the chain */
ap_remove_output_filter(f);
/* retry without the conditionals */
apr_table_unset(r->headers_in, "If-Match");
apr_table_unset(r->headers_in, "If-Modified-Since");
apr_table_unset(r->headers_in, "If-None-Match");
apr_table_unset(r->headers_in, "If-Range");
apr_table_unset(r->headers_in, "If-Unmodified-Since");
ap_internal_redirect(r->unparsed_uri, r);
return APR_SUCCESS;
--
You are receiving this mail because:
You are the assignee for the bug.
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
