Revert "MINOR: cache: allow caching of OPTIONS request"

This reverts commit 1263540fe8.

As discussed in issues #214 and #251, this is not the correct way to
cache CORS responses, since it relies on hacking the cache to cache
the OPTIONS method which is explicitly non-cacheable and for which
we cannot rely on any standard caching semantics (cache headers etc
are not expected there). Let's roll this back for now and keep that
for a more reliable and flexible CORS-specific solution later.
This commit is contained in:
Willy Tarreau 2019-10-01 17:59:17 +02:00
parent 4c52e4b560
commit 6905d18495

View file

@ -563,8 +563,8 @@ enum act_return http_action_store_cache(struct act_rule *rule, struct proxy *px,
if (!(txn->req.flags & HTTP_MSGF_VER_11))
goto out;
/* cache only GET or OPTIONS method */
if (txn->meth != HTTP_METH_GET && txn->meth != HTTP_METH_OPTIONS)
/* cache only GET method */
if (txn->meth != HTTP_METH_GET)
goto out;
/* cache key was not computed */
@ -1069,9 +1069,6 @@ int sha1_hosturi(struct stream *s)
ctx.blk = NULL;
switch (txn->meth) {
case HTTP_METH_OPTIONS:
chunk_memcat(trash, "OPTIONS", 7);
break;
case HTTP_METH_HEAD:
case HTTP_METH_GET:
chunk_memcat(trash, "GET", 3);
@ -1107,10 +1104,10 @@ enum act_return http_action_req_cache_use(struct act_rule *rule, struct proxy *p
struct cache_flt_conf *cconf = rule->arg.act.p[0];
struct cache *cache = cconf->c.cache;
/* Ignore cache for HTTP/1.0 requests and for requests other than GET,
* HEAD and OPTIONS */
/* Ignore cache for HTTP/1.0 requests and for requests other than GET
* and HEAD */
if (!(txn->req.flags & HTTP_MSGF_VER_11) ||
(txn->meth != HTTP_METH_GET && txn->meth != HTTP_METH_HEAD && txn->meth != HTTP_METH_OPTIONS))
(txn->meth != HTTP_METH_GET && txn->meth != HTTP_METH_HEAD))
txn->flags |= TX_CACHE_IGNORE;
http_check_request_for_cacheability(s, &s->req);