Commit Graph

4351 Commits

Author SHA1 Message Date
Maxim Dounin
397a42eb44 release-1.2.1 tag 2012-06-05 14:02:03 +00:00
Maxim Dounin
b73d3fde21 release-1.3.1 tag 2012-06-05 13:47:50 +00:00
Maxim Dounin
b239607e04 nginx-1.3.1-RELEASE 2012-06-05 13:47:29 +00:00
Maxim Dounin
0d7720ddc0 Win32: uris with ":$" are now rejected.
There are too many problems with special NTFS streams, notably "::$data",
"::$index_allocation" and ":$i30:$index_allocation".

For now we don't reject all URIs with ":" like Apache does as there are no
good reasons seen yet, and there are multiple programs using it in URLs
(e.g. MediaWiki).
2012-06-05 13:38:27 +00:00
Maxim Dounin
f83598a359 Win32: normalization of trailing dot inside uri.
Windows treats "/directory./" identical to "/directory/".  Do the same
when working on Windows.  Note that the behaviour is different from one
with last path component (where multiple spaces and dots are ignored by
Windows).
2012-06-05 13:37:29 +00:00
Maxim Dounin
db80a7adfc Win32: disallowed access to various non-canonical name variants.
This includes trailings dots and spaces, NTFS streams (and short names, as
previously checked).  The checks are now also done in ngx_file_info(), thus
allowing to use the "try_files" directive to protect external scripts.
2012-06-05 13:36:09 +00:00
Ruslan Ermilov
ac7f704931 Support for IPv6 literals and an optional port in resolver. 2012-06-04 14:23:27 +00:00
Maxim Dounin
596226f6f7 Support for IPv6 literals in proxy_pass and so on. 2012-06-04 14:07:34 +00:00
Maxim Dounin
4888969baa Upstream: least_conn compilation fixes.
Removed duplicate call of ngx_http_upstream_init_round_robin_peer()
overlooked during code changes.  Rewritten "return lcp->free_rr_peer(...)"
as MSVC doesn't like it.
2012-06-04 00:00:28 +00:00
Maxim Dounin
1ba6ecd4f3 Upstream: weights support in ip_hash balancer. 2012-06-03 23:22:41 +00:00
Maxim Dounin
4cb4e8d179 Upstream: least_conn balancer module. 2012-06-03 23:21:26 +00:00
Maxim Dounin
01f1e4d1dc Resolver: fixed format specification.
Patch by Yichun Zhang (agentzh).
2012-06-03 23:18:24 +00:00
Ruslan Ermilov
887f514e9f Code reduction (no functional changes). 2012-06-01 11:35:09 +00:00
Valentin Bartenev
2195eb554b Removed mistaken setting of NGX_SSL_BUFFERED flag in ngx_ssl_send_chain()
if SSL buffer is not used.
2012-05-30 12:43:27 +00:00
Valentin Bartenev
d8ec4910ce Fixed returned value handling from the cookie rewrite handler.
If the "proxy_cookie_domain" or "proxy_cookie_path" directive is used and there
are no matches in Set-Cookie header then ngx_http_proxy_rewrite_cookie() returns
NGX_DECLINED to indicate that the header was not rewritten. Returning this value
further from the upstream headers copy handler resulted in 500 error response.

See here for report:
http://mailman.nginx.org/pipermail/nginx/2012-May/033858.html
2012-05-30 12:30:03 +00:00
Ruslan Ermilov
94d8df6098 geoip: got rid of ugly casts when calling ngx_free().
This is done by removing the "const" qualifier from the common return
type of handler functions returning either "const char *" or "char *".
2012-05-29 09:19:51 +00:00
Ruslan Ermilov
49fbd88466 Fixed broken build. 2012-05-28 14:20:04 +00:00
Ruslan Ermilov
9fbd0d7c1d Fixed memory leak if $geoip_org variable was used.
Patch by Denis F. Latypoff (slightly modified).
2012-05-28 13:17:48 +00:00
Ruslan Ermilov
526fd681b5 Fixed the reuse of parsed DTDs and XSLTs.
Patch by Kuramoto Eiji.
2012-05-24 07:35:12 +00:00
Maxim Dounin
e1133ca60e Fixed compilation with -DNGX_DEBUG_MALLOC on FreeBSD 10.
After jemalloc 3.0.0 import there is no _malloc_options symbol, it has
been replaced with the malloc_conf one with a different syntax.
2012-05-23 15:07:01 +00:00
Maxim Dounin
a272b2da28 Fixed warning during nginx.xs compilation. 2012-05-23 10:36:12 +00:00
Ruslan Ermilov
d2e005c39d Fixed potential null pointer dereference in ngx_resolver_create().
While here, improved error message.
2012-05-22 13:12:14 +00:00
Ruslan Ermilov
d230df40b2 Removed historical and now redundant syntax pre-checks in ngx_parse_url(). 2012-05-21 10:55:10 +00:00
Maxim Dounin
34229e9d4d Fixed core variables dynamic access after reconfiguration.
If variable was indexed in previous configuration but not in current
one, the NGX_HTTP_VAR_INDEXED flag was left set and confused
ngx_http_get_variable().

Patch by Yichun Zhang (agentzh), slightly modified.
2012-05-17 18:10:34 +00:00
Maxim Dounin
d2143f11cb Fixed segfault with filter_finalize introduced in r4621 (1.3.0).
Example configuration to reproduce:

    location /image/ {
        error_page 415 = /zero;
        image_filter crop 100 100;
        proxy_pass http://127.0.0.1:8080;
        proxy_store on;
    }

    location /zero {
        return 204;
    }

The problem appeared if upstream returned (big enough) non-image file,
causing 415 to be generated by image filter.
2012-05-17 17:41:40 +00:00
Valentin Bartenev
430ab81a72 Fixed building --with-cpp_test_module on some systems. 2012-05-17 15:12:45 +00:00
Valentin Bartenev
1c168c7875 Fixed the ngx_regex.h header file compatibility with C++. 2012-05-17 13:47:04 +00:00
Ruslan Ermilov
1b4397443f Zero padded the returned and logged HTTP status code, and fixed possible
buffer overrun in $status handling.
2012-05-16 13:27:04 +00:00
Ruslan Ermilov
befc111d4f Capped the status code that may be returned with "return" and "try_files". 2012-05-16 13:22:03 +00:00
Ruslan Ermilov
10c205a1b3 Added syntax checking of the second parameter of the "split_clients" directive. 2012-05-16 13:14:53 +00:00
Ruslan Ermilov
6888516b2b Version bump. 2012-05-16 13:09:39 +00:00
Maxim Dounin
d7b40926d1 release-1.3.0 tag 2012-05-15 14:24:09 +00:00
Maxim Dounin
479e06d88b nginx-1.3.0-RELEASE 2012-05-15 14:23:49 +00:00
Maxim Dounin
07c178491c Updated OpenSSL used for win32 builds. 2012-05-15 14:20:06 +00:00
Ruslan Ermilov
e3bb319e34 Fixed win32 build after changes in r4624. 2012-05-15 08:10:59 +00:00
Valentin Bartenev
0215fcc9b8 Update c->sent in ngx_ssl_send_chain() even if SSL buffer is not used. 2012-05-14 16:30:33 +00:00
Ruslan Ermilov
9a79c3431a Reverted previous attempt to fix complation warning introduced in
r4624 and actually fixed it.
2012-05-14 15:52:37 +00:00
Ruslan Ermilov
d4ba06c31a geoip: trusted proxies support and partial IPv6 support.
The module now supports recursive search of client address through the
chain of trusted proxies (closes #100), in the same scope as the geo
module.  Proxies are listed by the "geoip_proxy" directive, recursive
search is enabled by the "geoip_proxy_recursive" directive.  IPv6 is
partially supported: proxies may be specified with IPv6 addresses.

Example:
    geoip_country .../GeoIP.dat;
    geoip_proxy 127.0.0.1;
    geoip_proxy ::1;
    geoip_proxy 10.0.0.0/8;
    geoip_proxy_recursive on;
2012-05-14 14:00:17 +00:00
Ruslan Ermilov
69521ddebf geo: chains of trusted proxies and partial IPv6 support.
The module now supports recursive search of client address through
the chain of trusted proxies, controlled by the "proxy_recursive"
directive in the "geo" block.  It also gets partial IPv6 support:
now proxies may be specified with IPv6 addresses.

Example:
    geo $test {
        ...
        proxy 127.0.0.1;
        proxy ::1;
        proxy_recursive;
    }

There's also a slight change in behavior.  When original client
address (as specified by the "geo" directive) is one of the
trusted proxies, and the value of the X-Forwarded-For request
header cannot not be parsed as a valid address, an original client
address will be used for lookup.  Previously, 255.255.255.255 was
used in this case.
2012-05-14 13:53:22 +00:00
Ruslan Ermilov
11a8e26d29 Fixed compilation warning introduced in r4624. 2012-05-14 13:15:22 +00:00
Ruslan Ermilov
7627530b50 realip: chains of trusted proxies and IPv6 support.
The module now supports recursive search of client address through
the chain of trusted proxies, controlled by the "real_ip_recursive"
directive (closes #2).  It also gets full IPv6 support (closes #44)
and canonical value of the $client_addr variable on address change.

Example:
    real_ip_header X-Forwarded-For;
    set_real_ip_from 127.0.0.0/8;
    set_real_ip_from ::1;
    set_real_ip_from unix:;
    real_ip_recursive on;
2012-05-14 12:41:03 +00:00
Ruslan Ermilov
8e5dc474e5 New function ngx_http_get_forwarded_addr() to look up real client address.
On input it takes an original address, string in the X-Forwarded-For format
and its length, list of trusted proxies, and a flag indicating to perform
the recursive search.  On output it returns NGX_OK and the "deepest" valid
address in a chain, or NGX_DECLINED.  It supports AF_INET and AF_INET6.
Additionally, original address and/or proxy may be specified as AF_UNIX.
2012-05-14 12:27:41 +00:00
Maxim Dounin
4d5759e098 Upstream: fixed ip_hash rebalancing with the "down" flag.
Due to weight being set to 0 for down peers, order of peers after sorting
wasn't the same as without the "down" flag (with down peers at the end),
resulting in client rebalancing for clients on other servers.  The only
rebalancing which should happen after adding "down" to a server is one
for clients on the server.

The problem was introduced in r1377 (which fixed endless loop by setting
weight to 0 for down servers).  The loop is no longer possible with new
smooth algorithm, so preserving original weight is safe.
2012-05-14 09:58:07 +00:00
Maxim Dounin
52327e0627 Upstream: smooth weighted round-robin balancing.
For edge case weights like { 5, 1, 1 } we now produce { a, a, b, a, c, a, a }
sequence instead of { c, b, a, a, a, a, a } produced previously.

Algorithm is as follows: on each peer selection we increase current_weight
of each eligible peer by its weight, select peer with greatest current_weight
and reduce its current_weight by total number of weight points distributed
among peers.

In case of { 5, 1, 1 } weights this gives the following sequence of
current_weight's:

     a  b  c
     0  0  0  (initial state)

     5  1  1  (a selected)
    -2  1  1

     3  2  2  (a selected)
    -4  2  2

     1  3  3  (b selected)
     1 -4  3

     6 -3  4  (a selected)
    -1 -3  4

     4 -2  5  (c selected)
     4 -2 -2

     9 -1 -1  (a selected)
     2 -1 -1

     7  0  0  (a selected)
     0  0  0

To preserve weight reduction in case of failures the effective_weight
variable was introduced, which usually matches peer's weight, but is
reduced temporarily on peer failures.

This change also fixes loop with backup servers and proxy_next_upstream
http_404 (ticket #47), and skipping alive upstreams in some cases if there
are multiple dead ones (ticket #64).
2012-05-14 09:57:20 +00:00
Maxim Dounin
e302ed6fc3 Fixed possible request hang with filter finalization.
With r->filter_finalize set the ngx_http_finalize_connection() wasn't
called from ngx_http_finalize_request() called with NGX_OK, resulting in
r->main->count not being decremented, thus causing request hang in some
rare situations.

See here for more details:
http://mailman.nginx.org/pipermail/nginx-devel/2012-May/002190.html

Patch by Yichun Zhang (agentzh).
2012-05-14 09:48:05 +00:00
Maxim Dounin
7d863c0181 Resolver: protection from duplicate responses.
If we already had CNAME in resolver node (i.e. rn->cnlen and rn->u.cname
set), and got additional response with A record, it resulted in rn->cnlen
set and rn->u.cname overwritten by rn->u.addr (or rn->u.addrs), causing
segmentation fault later in ngx_resolver_free_node() on an attempt to free
overwritten rn->u.cname.  The opposite (i.e. CNAME got after A) might cause
similar problems as well.
2012-05-14 09:13:45 +00:00
Maxim Dounin
0e3b423dc6 Accept moderation in case of EMFILE/ENFILE.
In case of EMFILE/ENFILE returned from accept() we disable accept events,
and (in case of no accept mutex used) arm timer to re-enable them later.
With accept mutex we just drop it, and rely on normal accept mutex handling
to re-enable accept events once it's acquired again.

As we now handle errors in question, logging level was changed to "crit"
(instead of "alert" used for unknown errors).

Note: the code might call ngx_enable_accept_events() multiple times if
there are many listen sockets.  The ngx_enable_accept_events() function was
modified to check if connection is already active (via c->read->active) and
skip it then, thus making multiple calls safe.
2012-05-11 13:33:06 +00:00
Maxim Dounin
74d939974d Rewrite: fixed escaping and possible segfault (ticket #162).
The following code resulted in incorrect escaping of uri and possible
segfault:

    location / {
        rewrite ^(.*) $1?c=$1;
        return 200 "$uri";
    }

If there were arguments in a rewrite's replacement string, and length was
actually calculated (due to duplicate captures as in the example above,
or variables present), the is_args flag was set and incorrectly copied
after length calculation.  This resulted in escaping applied to the uri part
of the replacement, resulting in incorrect escaping.  Additionally, buffer
was allocated without escaping expected, thus this also resulted in buffer
overrun and possible segfault.
2012-05-11 13:19:22 +00:00
Maxim Dounin
9114f08863 Fastcgi: fixed padding handling on fixed-size records.
Padding was incorrectly ignored on end request, empty stdout and stderr
fastcgi records.  This resulted in protocol desynchronization if fastcgi
application used these records with padding for some reason.

Reported by Ilia Vinokurov.
2012-05-11 13:14:58 +00:00
Maxim Dounin
b34f84d8de Added r->state reset on fastcgi/scgi/uwsgi request start.
Failing to do so results in problems if 400 or 414 requests are
redirected to fastcgi/scgi/uwsgi upstream, as well as after invalid
headers got from upstream.  This was already fixed for proxy in r3478,
but fastcgi (the only affected protocol at that time) was missed.

Reported by Matthieu Tourne.
2012-05-11 13:09:24 +00:00