Mercurial > hg > nginx-vendor-0-7
annotate src/http/modules/ngx_http_not_modified_filter_module.c @ 506:b9fdcaf2062b NGINX_0_7_65
nginx 0.7.65
*) Security: now nginx/Windows ignores trailing spaces in URI.
Thanks to Dan Crowley, Core Security Technologies.
*) Security: now nginx/Windows ignores short files names.
Thanks to Dan Crowley, Core Security Technologies.
*) Change: now the "009" status code is written to an access log for
proxied HTTP/0.9 responses.
*) Change: now the default buffer size of the
"large_client_header_buffers" directive is 8K.
Thanks to Andrew Cholakian.
*) Change: now default SSL ciphers are "HIGH:!ADH:!MD5".
*) Change: now SSLv2 protocol is disabled by default.
*) Change: now $host variable value is always low case.
*) Feature: the conf/fastcgi.conf for simple FastCGI configurations.
*) Feature: now URI part is not required a "proxy_pass" directive if
variables are used.
*) Feature: the $ssl_session_id variable.
*) Bugfix: if a proxied or FastCGI request was internally redirected to
another proxied or FastCGI location, then $upstream_response_time
variable may have abnormally large value; the bug had appeared in
0.7.63.
*) Bugfix: if the "expires modified" set date in the past, then a
negative number was set in the "Cache-Control" response header
line.
Thanks to Alex Kapranoff.
*) Bugfix: nginx closed a connection if a cached response had an empty
body.
Thanks to Piotr Sikora.
*) Bugfix: nginx cached a 304 response if there was the "If-None-Match"
header line in a proxied request.
Thanks to Tim Dettrick and David Kostal.
*) Bugfix: nginx did not treat a comma as separator in the
"Cache-Control" backend response header line.
*) Bugfix: cached HTTP/0.9 responses were handled incorrectly.
*) Bugfix: nginx sent gzipped responses to clients those do not support
gzip, if "gzip_static on" and "gzip_vary off"; the bug had appeared
in 0.8.16.
*) Bugfix: nginx always added "Content-Encoding: gzip" response header
line in 304 responses sent by ngx_http_gzip_static_module.
*) Bugfix: the "!-x" operator did not work.
Thanks to Maxim Dounin.
*) Bugfix: a segmentation fault might occur in a worker process, if
limit_rate was used in HTTPS server.
Thanks to Maxim Dounin.
*) Bugfix: a segmentation fault might occur in a worker process while
$limit_rate logging.
Thanks to Maxim Dounin.
*) Bugfix: nginx did not support dates in 2038 year on 32-bit platforms;
*) Bugfix: nginx/Windows tried to delete a temporary file twice if the
file should replace an already existent file.
*) Bugfix: nginx/Windows tried to rename a temporary file twice if the
file should replace an already existent file.
*) Bugfix: nginx/Windows might not create temporary file, a cache file,
or "proxy/fastcgi_store"d file if a worker had no enough access
rights for top level directories.
*) Bugfix: in UTF-8 encoding support by "try_files" directive in
nginx/Windows.
*) Bugfix: UTF-8 encoding usage in the ngx_http_autoindex_module.
Thanks to Maxim Dounin.
*) Bugfix: the ngx_http_autoindex_module did not show the trailing
slash in links to a directory; the bug had appeared in 0.7.15.
*) Bugfix: nginx did not close a log file set by the --error-log-path
configuration option; the bug had appeared in 0.7.53.
*) Bugfix: "addition_types" directive was incorrectly named
"addtion_types".
*) Bugfix: invalid request line in $request variable was written in
access_log only if error_log was set to "info" or "debug" level.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Mon, 01 Feb 2010 00:00:00 +0000 |
parents | 549994537f15 |
children |
rev | line source |
---|---|
0 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
9 #include <ngx_http.h> | |
10 | |
11 | |
12 | |
230 | 13 static ngx_int_t ngx_http_not_modified_filter_init(ngx_conf_t *cf); |
0 | 14 |
15 | |
16 static ngx_http_module_t ngx_http_not_modified_filter_module_ctx = { | |
58 | 17 NULL, /* preconfiguration */ |
230 | 18 ngx_http_not_modified_filter_init, /* postconfiguration */ |
0 | 19 |
20 NULL, /* create main configuration */ | |
21 NULL, /* init main configuration */ | |
22 | |
23 NULL, /* create server configuration */ | |
24 NULL, /* merge server configuration */ | |
25 | |
26 NULL, /* create location configuration */ | |
27 NULL /* merge location configuration */ | |
28 }; | |
29 | |
30 | |
31 ngx_module_t ngx_http_not_modified_filter_module = { | |
58 | 32 NGX_MODULE_V1, |
0 | 33 &ngx_http_not_modified_filter_module_ctx, /* module context */ |
34 NULL, /* module directives */ | |
35 NGX_HTTP_MODULE, /* module type */ | |
90 | 36 NULL, /* init master */ |
230 | 37 NULL, /* init module */ |
90 | 38 NULL, /* init process */ |
39 NULL, /* init thread */ | |
40 NULL, /* exit thread */ | |
41 NULL, /* exit process */ | |
42 NULL, /* exit master */ | |
43 NGX_MODULE_V1_PADDING | |
0 | 44 }; |
45 | |
46 | |
47 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; | |
48 | |
49 | |
480 | 50 static ngx_int_t |
51 ngx_http_not_modified_header_filter(ngx_http_request_t *r) | |
0 | 52 { |
424 | 53 time_t ims; |
54 ngx_http_core_loc_conf_t *clcf; | |
0 | 55 |
56 if (r->headers_out.status != NGX_HTTP_OK | |
146 | 57 || r != r->main |
0 | 58 || r->headers_in.if_modified_since == NULL |
59 || r->headers_out.last_modified_time == -1) | |
60 { | |
61 return ngx_http_next_header_filter(r); | |
62 } | |
63 | |
444 | 64 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
65 | |
66 if (clcf->if_modified_since == NGX_HTTP_IMS_OFF) { | |
67 return ngx_http_next_header_filter(r); | |
68 } | |
69 | |
0 | 70 ims = ngx_http_parse_time(r->headers_in.if_modified_since->value.data, |
71 r->headers_in.if_modified_since->value.len); | |
126 | 72 |
0 | 73 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
74 "http ims:%d lm:%d", ims, r->headers_out.last_modified_time); | |
75 | |
424 | 76 if (ims != r->headers_out.last_modified_time) { |
77 | |
444 | 78 if (clcf->if_modified_since == NGX_HTTP_IMS_EXACT |
424 | 79 || ims < r->headers_out.last_modified_time) |
80 { | |
81 return ngx_http_next_header_filter(r); | |
82 } | |
0 | 83 } |
84 | |
424 | 85 r->headers_out.status = NGX_HTTP_NOT_MODIFIED; |
464 | 86 r->headers_out.status_line.len = 0; |
424 | 87 r->headers_out.content_type.len = 0; |
88 ngx_http_clear_content_length(r); | |
89 ngx_http_clear_accept_ranges(r); | |
90 | |
506 | 91 if (r->headers_out.content_encoding) { |
92 r->headers_out.content_encoding->hash = 0; | |
93 r->headers_out.content_encoding = NULL; | |
94 } | |
95 | |
0 | 96 return ngx_http_next_header_filter(r); |
97 } | |
98 | |
99 | |
480 | 100 static ngx_int_t |
101 ngx_http_not_modified_filter_init(ngx_conf_t *cf) | |
0 | 102 { |
103 ngx_http_next_header_filter = ngx_http_top_header_filter; | |
104 ngx_http_top_header_filter = ngx_http_not_modified_header_filter; | |
105 | |
106 return NGX_OK; | |
107 } |