Commit Graph

79 Commits

Author SHA1 Message Date
Ruslan Ermilov
3aeefbcaea Changed resolver API to use ngx_addr_t. 2013-12-06 14:30:27 +04:00
Maxim Dounin
1ac2693a33 Upstream: cache revalidation with conditional requests.
The following new directives are introduced: proxy_cache_revalidate,
fastcgi_cache_revalidate, scgi_cache_revalidate, uwsgi_cache_revalidate.
Default is off.  When set to on, they enable cache revalidation using
conditional requests with If-Modified-Since for expired cache items.

As of now, no attempts are made to merge headers given in a 304 response
during cache revalidation with headers previously stored in a cache item.
Headers in a 304 response are only used to calculate new validity time
of a cache item.
2013-11-18 20:48:22 +04:00
Maxim Dounin
1a983a0c05 Upstream: http_403 support in proxy_next_upstream (and friends).
The parameter is mostly identical to http_404, and is expected to
be used in similar situations.  The 403 code might be returned by
a backend instead of 404 on initial sync of new directories with rsync.

See here for feature request and additional details:
http://mailman.nginx.org/pipermail/nginx-ru/2013-April/050920.html
2013-05-27 16:54:09 +04:00
Maxim Dounin
08a73b4aad Proxy: support for connection upgrade (101 Switching Protocols).
This allows to proxy WebSockets by using configuration like this:

    location /chat/ {
        proxy_pass http://backend;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }

Connection upgrade is allowed as long as it was requested by a client
via the Upgrade request header.
2013-02-18 13:50:52 +00:00
Ruslan Ermilov
5d143ca864 Fixed and improved the "*_bind" directives of proxying modules.
The "proxy_bind", "fastcgi_bind", "uwsgi_bind", "scgi_bind" and
"memcached_bind" directives are now inherited; inherited value
can be reset by the "off" parameter.  Duplicate directives are
now detected.  Parameter value can now contain variables.
2013-01-16 09:42:57 +00:00
Ruslan Ermilov
a2a229193a Fixed "proxy_pass" with IP address and no port (ticket #276).
Upstreams created by "proxy_pass" with IP address and no port were
broken in 1.3.10, by not initializing port in u->sockaddr.

API change: ngx_parse_url() was modified to always initialize port
(in u->sockaddr and in u->port), even for the u->no_resolve case;
ngx_http_upstream() and ngx_http_upstream_add() were adopted.
2013-01-10 12:58:55 +00:00
Valentin Bartenev
b3e3b2e75a Upstream: added callback hook for the "Set-Cookie" header.
No functional changes.
2012-02-13 11:01:58 +00:00
Maxim Konovalov
f8d59e33f3 Copyright updated. 2012-01-18 15:07:43 +00:00
Maxim Dounin
822fe46934 Cache locks initial implementation.
New directives: proxy_cache_lock on/off, proxy_cache_lock_timeout.  With
proxy_cache_lock set to on, only one request will be allowed to go to
upstream for a particular cache item.  Others will wait for a response
to appear in cache (or cache lock released) up to proxy_cache_lock_timeout.

Waiting requests will recheck if they have cached response ready (or are
allowed to run) every 500ms.

Note: we intentionally don't intercept NGX_DECLINED possibly returned by
ngx_http_file_cache_read().  This needs more work (possibly safe, but needs
further investigation).  Anyway, it's exceptional situation.

Note: probably there should be a way to disable caching of responses
if there is already one request fetching resource to cache (without waiting
at all).  Two possible ways include another cache lock option ("no_cache")
or using proxy_no_cache with some supplied variable.

Note: probably there should be a way to lock updating requests as well.  For
now "proxy_cache_use_stale updating" is available.
2011-12-26 11:15:23 +00:00
Valentin Bartenev
50546b26d9 Added the ngx_http_upstream_param_set_slot(). 2011-12-09 13:19:57 +00:00
Maxim Dounin
b8203e46a0 Additional headers for proxy/fastcgi/uwsgi/scgi_ignore_headers.
Now the following headers may be ignored as well: X-Accel-Limit-Rate,
X-Accel-Buffering, X-Accel-Charset.
2011-10-11 18:10:49 +00:00
Maxim Dounin
f84c69a301 Upstream: Connection header processing. 2011-09-15 19:21:19 +00:00
Maxim Dounin
4686f30a0c Upstream: Transfer-Encoding header processing. 2011-09-15 19:20:08 +00:00
Maxim Dounin
2d6be3fe93 Upstream: keepalive flag.
This patch introduces r->upstream->keepalive flag, which is set by protocol
handlers if connection to upstream is in good state and can be kept alive.
2011-09-15 19:03:15 +00:00
Maxim Dounin
ffe4f11417 Upstream: r->upstream->length type change to off_t.
Previous use of size_t may cause wierd effects on 32bit platforms with certain
big responses transferred in unbuffered mode.

Nuke "if (size > u->length)" check as it's not usefull anyway (preread
body data isn't subject to this check) and now requires additional check
for u->length being positive.
2011-09-15 18:43:19 +00:00
Igor Sysoev
c2f852c260 update r3945 with more descriptive error message 2011-07-29 15:33:03 +00:00
Igor Sysoev
f83d6cf0f7 style fix 2010-11-26 13:58:28 +00:00
Igor Sysoev
f7d659aa52 proxy_cache_pass, fastcgi_cache_bypass, uwsgi_cache_bypass, scgi_cache_bypass 2010-07-19 09:36:04 +00:00
Igor Sysoev
0bd1809f05 treat Set-Cookie as a header that forbids caching 2010-07-02 09:49:27 +00:00
Igor Sysoev
7e14b50c28 use shared ngx_http_upstream_ignore_headers_masks[] 2010-07-02 09:25:38 +00:00
Igor Sysoev
9b2763a245 proxy_no_cache and fastcgi_no_cache 2010-05-24 11:01:05 +00:00
Igor Sysoev
bd375b9566 fix typo 2009-12-23 14:22:17 +00:00
Igor Sysoev
72e928755b proxy_bind, fastcgi_bind, and memcached_bind 2009-11-02 15:24:02 +00:00
Igor Sysoev
0c189c5159 rename ngx_peer_addr_t to ngx_addr_t 2009-11-02 15:14:17 +00:00
Igor Sysoev
19811dbdde style fix 2009-11-02 12:41:56 +00:00
Igor Sysoev
15b7420aa6 ngx_http_upstream_create() to cleanup the previous upstream after
internal redirect
2009-07-27 13:25:29 +00:00
Igor Sysoev
bd9eda9986 $upstream_cache_status 2009-06-18 13:34:47 +00:00
Igor Sysoev
55192e7470 proxy_cache_use_stale/fastcgi_cache_use_stale updating 2009-06-06 18:49:47 +00:00
Igor Sysoev
5ed3691b6e proxy_cache_methods and fastcgi_cache_methods 2009-05-19 13:27:27 +00:00
Igor Sysoev
b01c9cc10e proxy_ignore_headers and fastcgi_ignore_headers 2009-04-30 16:15:07 +00:00
Igor Sysoev
43e1b88acb style fix 2009-04-24 19:58:19 +00:00
Igor Sysoev
52859f2f13 a prelimiary proxy cache support 2009-03-23 13:14:51 +00:00
Igor Sysoev
302cedceb0 variable support for unix sockets in fastcgi_pass and proxy_pass 2008-12-23 19:35:12 +00:00
Igor Sysoev
371766c0a5 $upstream_response_length 2008-12-11 15:30:52 +00:00
Igor Sysoev
73c3121e6a delete surplus upstream.schema field 2008-12-10 14:44:48 +00:00
Igor Sysoev
b9409a8e25 use already available r and u instead of ev 2008-12-09 17:25:03 +00:00
Igor Sysoev
851cd73f1d *) refactor subrequest handling, now they run as separate posted requests
*) now $upstream_addr, $upstream_status, $upstream_response_time can be used
   with log_subrequest
2008-12-08 14:23:20 +00:00
Igor Sysoev
694c84975d fix r1913 2008-10-30 15:59:10 +00:00
Igor Sysoev
797c6ef394 *) ngx_http_upstream_test_next()
*) add proxy_next_upstream http_502 and http_504
*) fix http_503
2008-09-30 15:39:02 +00:00
Igor Sysoev
916ee8ecea proxy_ssl_session_reuse 2008-08-17 17:47:52 +00:00
Igor Sysoev
8efe926dc5 fix r1903 2008-03-03 20:04:06 +00:00
Igor Sysoev
be0a61e618 test response length in proxy/fastcgi_store 2008-02-11 13:14:56 +00:00
Igor Sysoev
cb54061885 *) now ngx_conf_set_str_array_slot() tests NGX_CONF_UNSET_PTR
this fixes fastcgi_catch_stderr segfault introduced in r1453
*) ngx_http_upstream_hide_headers_hash()
*) proxy/fastcgi pass_header/hide_header use
   ngx_http_upstream_hide_headers_hash()
2007-12-09 18:03:20 +00:00
Igor Sysoev
96dd8af8e6 proxy_pass variables support 2007-11-27 13:34:13 +00:00
Igor Sysoev
2d3f3f6eb6 fix English grammar 2007-10-14 18:56:15 +00:00
Igor Sysoev
4b96baa417 u_char* is enough to keep file name 2007-09-15 17:11:06 +00:00
Igor Sysoev
6876bcdad6 backup upstream servers 2007-08-09 13:54:33 +00:00
Igor Sysoev
fbd9b4399f proxy_store and fastcgi_store were changed,
proxy_store_access and fastcgi_store_access were added
2007-07-13 08:30:34 +00:00
Igor Sysoev
58feb53eb4 proxy_store and fastcgi_store 2007-07-12 11:19:05 +00:00
Igor Sysoev
e0f866273f store the upstream states before X-Accel-Redirect to a next upstream 2007-04-18 20:23:19 +00:00