look for 'no-cache' in subprocess_env to prevent the saving
of an otherwise cacheable response.
document no-cache envvar
Submitted by: covener
Reviewed/backported by: jim
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@733762 13f79535-47bb-0310-9956-ffa450edef68
When an expires or cache-control header are sent, the RFC does allow us to cache normally non-cacheable response statuses.
Submitted by: Alex Polvi <alex polvi.net>
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@727599 13f79535-47bb-0310-9956-ffa450edef68
* Restore the original request headers if the cached resource was stale, as they
may be needed by further output filters like the byterange filter to make the
correct decisions.
PR: 44579
* Do not do Range requests if we use our own conditionals for validating
a cache entity: If we get 304 the Range does not matter and otherwise the
entity changed and we want to have the complete entity.
PR: 44579
Submitted by: rpluem
Reviewed by: jim
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@660584 13f79535-47bb-0310-9956-ffa450edef68
mod_cache: Correctly handle HEAD requests on expired cache content. PR 41230.
* modules/cache/mod_cache.c
(cache_save_filter): Properly handle HEAD responses when we have a stale handle.
(This patch was revised by Justin/Ruediger.)
Submitted by: Niklas Edmundsson
Reviewed by: Justin, Ruediger
Submitted by: jerenkrantz
Reviewed by: jim
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@553596 13f79535-47bb-0310-9956-ffa450edef68
* Add CacheIgnoreQueryString directive to cache requests with a query string
even if no expiration time is specified. Futhermore the query string will not
be used for key generation such that requests to the same URI path, but with
different query strings are mapped to the same cache entity. Turning this
setting to ON violates RFC 2616/13.9 and thus it is turned off by default.
PR: 41484
Submitted by: Fredrik Widlund <fredrik.widlund qbrick.com>
Reviewed by: rpluem, jerenkrantz, jim
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@539111 13f79535-47bb-0310-9956-ffa450edef68
* Remove all filters that are before the cache_out filter. This ensures
that we kick off the filter stack with our cache_out filter being the
first in the chain. This make sense because we want to restore things
in the same manner as we saved them.
There may be filters before our cache_out filter, because
1. We call ap_set_content_type during cache_select. This causes
Content-Type specific filters to be added.
2. We call the insert_filter hook. This causes filters e.g. like
the ones set with SetOutputFilter to be added.
PR: 40090
Submitted by: rpluem
Reviewed by: rpluem, wrowe, jerenkrantz
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@538868 13f79535-47bb-0310-9956-ffa450edef68
* Use the query string stored in r->parsed_uri.query instead of r->args
as r->args could have been changed (e.g. via mod_rewrite) after the quick
handler hook. This causes resources to be stored under a key, where they
cannot be fetched again in the quick handler.
PR: 40805
Submitted by: rpluem
Reviewed by: rpluem, jim, sctemme
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@535903 13f79535-47bb-0310-9956-ffa450edef68
otherwise mod_cache will always try to cache the URL. This bug
might lead to numerous rename() errors on win32 if the URL was
previously cached.
+1: minfrin, rpluem, jim
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@463496 13f79535-47bb-0310-9956-ffa450edef68
* Create new filters CACHE_OUT_SUBREQ / CACHE_SAVE_SUBREQ which only differ
by the type (AP_FTYPE_CONTENT_SET-1) from CACHE_OUT / CACHE_SAVE
(AP_FTYPE_CONTENT_SET+1). This ensures that subrequests to non local
resources do not get stuck in the middle of the road with the contents
only written to the temp file, because CACHE_OUT_SUBREQ / CACHE_SAVE_SUBREQ
are inserted *before* the SUBREQ_CORE filter in the filter chain.
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@328466 13f79535-47bb-0310-9956-ffa450edef68
is valid, but cache is unwritable and headers cannot be updated.
Submitted by: Colm MacCarthaigh <colm stdlib.net>
Reviewed by: Justin Erenkrantz
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@231488 13f79535-47bb-0310-9956-ffa450edef68
Remove entities from the cache when re-validation receives a 404 or other
content-no-longer-present error.
Suggested by: Paul Querna, Justin Erenkrantz
Submitted by: Rudiger Plum <ruediger.pluem vodafone.com>
Reviewed by: Justin Erenkrantz
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@231487 13f79535-47bb-0310-9956-ffa450edef68
*) Remove the first set of Validation code. Use the main if structure to check for both 'Vary: *' and 'Cache-Control: no-store'.
*) Add logging of failures for a provider's store_body function.
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@190033 13f79535-47bb-0310-9956-ffa450edef68
* modules/cache/mod_cache.c
(cache_url_handler): Add more debug output. Restore original request
headers when CACHE_SAVE filter isn't added to fix up after the request.
* modules/cache/cache_storage.c
(cache_select_url): Add more debug output.
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@157162 13f79535-47bb-0310-9956-ffa450edef68
* modules/cache/cache_util.c
(ap_cache_check_freshness): On Cache-Control/Pragma no-cache force
revalidation by marking the resource as stale. Unless IgnoreCacheControl
is set ofcourse.
* modules/cache/mod_cache.c
(cache_url_handler): Remove Cache-Control/Pragma no-cache check and
accompagnying comment.
(cache_save_filter): Move FIXME comment to the correct location.
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@156480 13f79535-47bb-0310-9956-ffa450edef68
* modules/cache/mod_cache.c
(cache_save_filter): Instead of unconditionally returning a 304 when
the original request was conditional and we issued a cache revalidating
request, handle the request as if it came in while our cache was
still valid.
* modules/cache/cache_storage.c
(cache_select_url): Strip off the conditional headers from the original
request, prior to adding our own for the purpose of revalidating our
cached response.
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@156330 13f79535-47bb-0310-9956-ffa450edef68
* modules/cache/mod_cache.c: If we add a new Expires value, tell our client;
merge in headers properly (or better than before) so that we can update the
header fields on a revalidated but with updated header fields.
* modules/cache/mod_cache.h, modules/cache/cache_storage.c:
Add preserve_orig flag to ap_cache_accept_headers to allow updating of fields.
* modules/cache/mod_disk_cache.c: Load status value from disk.
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@152973 13f79535-47bb-0310-9956-ffa450edef68
* modules/cache/mod_cache.c
(cache_save_filter): Load in the cached status and headers; send a flush
rather than an EOS when the client request is conditional.
* modules/cache/mod_cache.h: Export ap_cache_accept_headers.
* modules/cache/cache_storage.c: Rename accept_headers to
ap_cache_accept_headers.
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@152680 13f79535-47bb-0310-9956-ffa450edef68
Saves certain people a bit of time figuring out why their caching
doesn't work...
* modules/cache/mod_cache.c
(add_cache_enable): Throw an error when a provider starting with
a '/' is encountered. The user probably switched arguments.
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@151232 13f79535-47bb-0310-9956-ffa450edef68
* docs/manual/mod/mod_cache.xml: Update documentation for
CacheIgnoreCacheControl and add documentation for two new directives.
* modules/cache/mod_cache.c
(cache_url_handler): Honor 'Cache-Control: no-cache' request header.
(cache_save_filter): Only honor no-store or private when their respective
directives are Off (which is the default).
rest of file: add in standard configuration syntax stuff...
* modules/cache/mod_cache.h: Minor formatting tweak and add new fields.
Suggested by: Pier Fumagalli
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@149492 13f79535-47bb-0310-9956-ffa450edef68
Also, take quick pass through docs files to remove experimental label for them.
Reviewed by: Paul Querna, Bill Stoddard, Justin Erenkrantz
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@106737 13f79535-47bb-0310-9956-ffa450edef68
