Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_gzip_static_module.c @ 5324:8ef1722143dc
SPDY: do not reject headers with empty value (ticket #396).
A quote from SPDY draft 2 specification: "The length of each name and
value must be greater than zero. A receiver of a zero-length name or
value must send a RST_STREAM with code PROTOCOL error."
But it appears that Chrome browser allows sending requests over SPDY/2
connection using JavaScript that contain headers with empty values.
For better compatibility across SPDY clients and to be compliant with
HTTP, such headers are no longer rejected.
Also, it is worth noting that in SPDY draft 3 the statement has been
changed so that it permits empty values for headers.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Thu, 15 Aug 2013 19:16:09 +0400 |
parents | e368b822d034 |
children | ceecde39853f |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
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5 */ |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_http.h> |
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13 #define NGX_HTTP_GZIP_STATIC_OFF 0 |
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14 #define NGX_HTTP_GZIP_STATIC_ON 1 |
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15 #define NGX_HTTP_GZIP_STATIC_ALWAYS 2 |
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16 |
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18 typedef struct { |
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19 ngx_uint_t enable; |
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20 } ngx_http_gzip_static_conf_t; |
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21 |
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22 |
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23 static ngx_int_t ngx_http_gzip_static_handler(ngx_http_request_t *r); |
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24 static void *ngx_http_gzip_static_create_conf(ngx_conf_t *cf); |
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25 static char *ngx_http_gzip_static_merge_conf(ngx_conf_t *cf, void *parent, |
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26 void *child); |
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27 static ngx_int_t ngx_http_gzip_static_init(ngx_conf_t *cf); |
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28 |
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29 |
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30 static ngx_conf_enum_t ngx_http_gzip_static[] = { |
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31 { ngx_string("off"), NGX_HTTP_GZIP_STATIC_OFF }, |
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32 { ngx_string("on"), NGX_HTTP_GZIP_STATIC_ON }, |
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33 { ngx_string("always"), NGX_HTTP_GZIP_STATIC_ALWAYS }, |
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34 { ngx_null_string, 0 } |
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35 }; |
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36 |
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37 |
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38 static ngx_command_t ngx_http_gzip_static_commands[] = { |
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39 |
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40 { ngx_string("gzip_static"), |
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41 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
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42 ngx_conf_set_enum_slot, |
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43 NGX_HTTP_LOC_CONF_OFFSET, |
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44 offsetof(ngx_http_gzip_static_conf_t, enable), |
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45 &ngx_http_gzip_static }, |
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46 |
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47 ngx_null_command |
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48 }; |
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49 |
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51 ngx_http_module_t ngx_http_gzip_static_module_ctx = { |
509 | 52 NULL, /* preconfiguration */ |
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53 ngx_http_gzip_static_init, /* postconfiguration */ |
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54 |
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55 NULL, /* create main configuration */ |
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56 NULL, /* init main configuration */ |
577 | 57 |
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58 NULL, /* create server configuration */ |
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59 NULL, /* merge server configuration */ |
577 | 60 |
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61 ngx_http_gzip_static_create_conf, /* create location configuration */ |
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62 ngx_http_gzip_static_merge_conf /* merge location configuration */ |
577 | 63 }; |
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64 |
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65 |
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66 ngx_module_t ngx_http_gzip_static_module = { |
509 | 67 NGX_MODULE_V1, |
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68 &ngx_http_gzip_static_module_ctx, /* module context */ |
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69 ngx_http_gzip_static_commands, /* module directives */ |
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70 NGX_HTTP_MODULE, /* module type */ |
541 | 71 NULL, /* init master */ |
681 | 72 NULL, /* init module */ |
541 | 73 NULL, /* init process */ |
74 NULL, /* init thread */ | |
75 NULL, /* exit thread */ | |
76 NULL, /* exit process */ | |
77 NULL, /* exit master */ | |
78 NGX_MODULE_V1_PADDING | |
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79 }; |
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80 |
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81 |
509 | 82 static ngx_int_t |
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83 ngx_http_gzip_static_handler(ngx_http_request_t *r) |
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84 { |
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85 u_char *p; |
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86 size_t root; |
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87 ngx_str_t path; |
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88 ngx_int_t rc; |
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89 ngx_uint_t level; |
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90 ngx_log_t *log; |
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91 ngx_buf_t *b; |
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92 ngx_chain_t out; |
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93 ngx_table_elt_t *h; |
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94 ngx_open_file_info_t of; |
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95 ngx_http_core_loc_conf_t *clcf; |
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96 ngx_http_gzip_static_conf_t *gzcf; |
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97 |
645 | 98 if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) { |
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99 return NGX_DECLINED; |
639 | 100 } |
101 | |
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102 if (r->uri.data[r->uri.len - 1] == '/') { |
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103 return NGX_DECLINED; |
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104 } |
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105 |
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106 gzcf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_static_module); |
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107 |
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108 if (gzcf->enable == NGX_HTTP_GZIP_STATIC_OFF) { |
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109 return NGX_DECLINED; |
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110 } |
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111 |
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112 if (gzcf->enable == NGX_HTTP_GZIP_STATIC_ON) { |
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113 rc = ngx_http_gzip_ok(r); |
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114 |
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115 } else { |
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116 /* always */ |
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117 rc = NGX_OK; |
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|
118 } |
3312
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diff
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|
119 |
3135
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|
120 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
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121 |
3312
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|
122 if (!clcf->gzip_vary && rc != NGX_OK) { |
1790
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|
123 return NGX_DECLINED; |
201
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200
diff
changeset
|
124 } |
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diff
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125 |
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diff
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126 log = r->connection->log; |
267ea1d98683
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diff
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|
127 |
1790
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|
128 p = ngx_http_map_uri_to_path(r, &path, &root, sizeof(".gz") - 1); |
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|
129 if (p == NULL) { |
557 | 130 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
400
69e851f83522
nginx-0.0.8-2004-07-26-20:21:18 import
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parents:
396
diff
changeset
|
131 } |
148
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143
diff
changeset
|
132 |
1790
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133 *p++ = '.'; |
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134 *p++ = 'g'; |
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135 *p++ = 'z'; |
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|
136 *p = '\0'; |
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137 |
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|
138 path.len = p - path.data; |
1454 | 139 |
201
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diff
changeset
|
140 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, |
557 | 141 "http filename: \"%s\"", path.data); |
148
5afee0074707
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parents:
143
diff
changeset
|
142 |
2068
75a8d34459c5
ngx_memzero() ngx_open_file_info_t
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diff
changeset
|
143 ngx_memzero(&of, sizeof(ngx_open_file_info_t)); |
75a8d34459c5
ngx_memzero() ngx_open_file_info_t
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parents:
2063
diff
changeset
|
144 |
3178 | 145 of.read_ahead = clcf->read_ahead; |
2129 | 146 of.directio = clcf->directio; |
1767
c42431762903
open_file_cache_retest > open_file_cache_valid
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1696
diff
changeset
|
147 of.valid = clcf->open_file_cache_valid; |
1772 | 148 of.min_uses = clcf->open_file_cache_min_uses; |
1454 | 149 of.errors = clcf->open_file_cache_errors; |
1457 | 150 of.events = clcf->open_file_cache_events; |
4494
13e09cf11d4e
Disable symlinks: initialization of the "disable_symlinks" field in
Valentin Bartenev <vbart@nginx.com>
parents:
4478
diff
changeset
|
151 |
13e09cf11d4e
Disable symlinks: initialization of the "disable_symlinks" field in
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parents:
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diff
changeset
|
152 if (ngx_http_set_disable_symlinks(r, clcf, &path, &of) != NGX_OK) { |
13e09cf11d4e
Disable symlinks: initialization of the "disable_symlinks" field in
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|
153 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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Disable symlinks: initialization of the "disable_symlinks" field in
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parents:
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diff
changeset
|
154 } |
1454 | 155 |
1799 | 156 if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool) |
157 != NGX_OK) | |
158 { | |
1454 | 159 switch (of.err) { |
160 | |
161 case 0: | |
162 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
148
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parents:
143
diff
changeset
|
163 |
1454 | 164 case NGX_ENOENT: |
165 case NGX_ENOTDIR: | |
166 case NGX_ENAMETOOLONG: | |
167 | |
1790
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|
168 return NGX_DECLINED; |
148
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parents:
143
diff
changeset
|
169 |
1454 | 170 case NGX_EACCES: |
4478
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Support for disable_symlinks in various modules.
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parents:
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|
171 #if (NGX_HAVE_OPENAT) |
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Support for disable_symlinks in various modules.
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diff
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|
172 case NGX_EMLINK: |
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Support for disable_symlinks in various modules.
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diff
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|
173 case NGX_ELOOP: |
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Support for disable_symlinks in various modules.
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diff
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|
174 #endif |
1454 | 175 |
170
c42be4185301
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parents:
165
diff
changeset
|
176 level = NGX_LOG_ERR; |
1454 | 177 break; |
148
5afee0074707
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parents:
143
diff
changeset
|
178 |
1454 | 179 default: |
180 | |
170
c42be4185301
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parents:
165
diff
changeset
|
181 level = NGX_LOG_CRIT; |
1454 | 182 break; |
148
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parents:
143
diff
changeset
|
183 } |
170
c42be4185301
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parents:
165
diff
changeset
|
184 |
1790
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diff
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|
185 ngx_log_error(level, log, of.err, |
2756
09cab3f8d92e
*) of.test_only to not open file if only stat() is enough
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parents:
2721
diff
changeset
|
186 "%s \"%s\" failed", of.failed, path.data); |
170
c42be4185301
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parents:
165
diff
changeset
|
187 |
1799 | 188 return NGX_DECLINED; |
148
5afee0074707
nginx-0.0.1-2003-10-17-00:19:16 import
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parents:
143
diff
changeset
|
189 } |
5afee0074707
nginx-0.0.1-2003-10-17-00:19:16 import
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parents:
143
diff
changeset
|
190 |
4836
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Gzip static: "always" parameter in "gzip_static" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4748
diff
changeset
|
191 if (gzcf->enable == NGX_HTTP_GZIP_STATIC_ON) { |
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Gzip static: "always" parameter in "gzip_static" directive.
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parents:
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diff
changeset
|
192 r->gzip_vary = 1; |
3313 | 193 |
4836
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Gzip static: "always" parameter in "gzip_static" directive.
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|
194 if (rc != NGX_OK) { |
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Gzip static: "always" parameter in "gzip_static" directive.
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|
195 return NGX_DECLINED; |
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Gzip static: "always" parameter in "gzip_static" directive.
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|
196 } |
3312
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nginx sent gzipped responses to clients those do not support gzip,
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|
197 } |
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|
198 |
1696 | 199 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http static fd: %d", of.fd); |
148
5afee0074707
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143
diff
changeset
|
200 |
1454 | 201 if (of.is_dir) { |
201
267ea1d98683
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parents:
200
diff
changeset
|
202 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http dir"); |
1790
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diff
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|
203 return NGX_DECLINED; |
148
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parents:
143
diff
changeset
|
204 } |
5afee0074707
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parents:
143
diff
changeset
|
205 |
461 | 206 #if !(NGX_WIN32) /* the not regular files are probably Unix specific */ |
176
c0552e5ab567
nginx-0.0.1-2003-11-09-23:03:38 import; separate building
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parents:
170
diff
changeset
|
207 |
1454 | 208 if (!of.is_file) { |
3498
9f20a6e758c3
do not log misleading errno in "not a regular file" error
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parents:
3313
diff
changeset
|
209 ngx_log_error(NGX_LOG_CRIT, log, 0, |
557 | 210 "\"%s\" is not a regular file", path.data); |
176
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parents:
170
diff
changeset
|
211 |
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parents:
170
diff
changeset
|
212 return NGX_HTTP_NOT_FOUND; |
c0552e5ab567
nginx-0.0.1-2003-11-09-23:03:38 import; separate building
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parents:
170
diff
changeset
|
213 } |
c0552e5ab567
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parents:
170
diff
changeset
|
214 |
c0552e5ab567
nginx-0.0.1-2003-11-09-23:03:38 import; separate building
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parents:
170
diff
changeset
|
215 #endif |
c0552e5ab567
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parents:
170
diff
changeset
|
216 |
2444
aee735f41627
set r->root_tested for non-error_page response only
Igor Sysoev <igor@sysoev.ru>
parents:
2231
diff
changeset
|
217 r->root_tested = !r->error_page; |
2087
c8039b26a949
always test root existence for access_log with variables
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parents:
2068
diff
changeset
|
218 |
1790
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
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diff
changeset
|
219 rc = ngx_http_discard_request_body(r); |
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
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diff
changeset
|
220 |
775edc46ee66
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diff
changeset
|
221 if (rc != NGX_OK) { |
775edc46ee66
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diff
changeset
|
222 return rc; |
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
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diff
changeset
|
223 } |
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
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diff
changeset
|
224 |
509 | 225 log->action = "sending response to client"; |
148
5afee0074707
nginx-0.0.1-2003-10-17-00:19:16 import
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parents:
143
diff
changeset
|
226 |
201
267ea1d98683
nginx-0.0.1-2003-11-30-23:03:18 import
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parents:
200
diff
changeset
|
227 r->headers_out.status = NGX_HTTP_OK; |
1454 | 228 r->headers_out.content_length_n = of.size; |
229 r->headers_out.last_modified_time = of.mtime; | |
201
267ea1d98683
nginx-0.0.1-2003-11-30-23:03:18 import
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parents:
200
diff
changeset
|
230 |
4748
192f54280a7a
Entity tags: set for static respones.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
231 if (ngx_http_set_etag(r) != NGX_OK) { |
192f54280a7a
Entity tags: set for static respones.
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parents:
4611
diff
changeset
|
232 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
192f54280a7a
Entity tags: set for static respones.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
233 } |
192f54280a7a
Entity tags: set for static respones.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
234 |
201
267ea1d98683
nginx-0.0.1-2003-11-30-23:03:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
200
diff
changeset
|
235 if (ngx_http_set_content_type(r) != NGX_OK) { |
200
abeaebe0a33c
nginx-0.0.1-2003-11-28-20:41:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
199
diff
changeset
|
236 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
abeaebe0a33c
nginx-0.0.1-2003-11-28-20:41:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
199
diff
changeset
|
237 } |
abeaebe0a33c
nginx-0.0.1-2003-11-28-20:41:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
199
diff
changeset
|
238 |
1790
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
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parents:
1772
diff
changeset
|
239 h = ngx_list_push(&r->headers_out.headers); |
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
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diff
changeset
|
240 if (h == NULL) { |
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
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1772
diff
changeset
|
241 return NGX_ERROR; |
583 | 242 } |
243 | |
1790
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
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parents:
1772
diff
changeset
|
244 h->hash = 1; |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3498
diff
changeset
|
245 ngx_str_set(&h->key, "Content-Encoding"); |
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3498
diff
changeset
|
246 ngx_str_set(&h->value, "gzip"); |
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3498
diff
changeset
|
247 r->headers_out.content_encoding = h; |
1790
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
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1772
diff
changeset
|
248 |
2877
3cd2790f4a9b
add charset for ngx_http_gzip_static_module responses
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parents:
2756
diff
changeset
|
249 r->ignore_content_encoding = 1; |
1790
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
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parents:
1772
diff
changeset
|
250 |
577 | 251 /* we need to allocate all before the header would be sent */ |
1
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
252 |
577 | 253 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); |
254 if (b == NULL) { | |
255 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
256 } | |
26
53cb81681040
nginx-0.0.1-2002-12-15-09:25:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
24
diff
changeset
|
257 |
577 | 258 b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t)); |
259 if (b->file == NULL) { | |
260 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
261 } | |
403
ea3113b181d1
nginx-0.0.9-2004-07-28-23:21:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
400
diff
changeset
|
262 |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
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263 rc = ngx_http_send_header(r); |
143
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nginx-0.0.1-2003-10-10-19:10:50 import
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142
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264 |
585 | 265 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { |
143
5526213be452
nginx-0.0.1-2003-10-10-19:10:50 import
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266 return rc; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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96
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267 } |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
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268 |
343
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269 b->file_pos = 0; |
1454 | 270 b->file_last = of.size; |
1
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nginx-0.0.1-2002-08-15-21:20:26 import
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271 |
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272 b->in_file = b->file_last ? 1 : 0; |
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Allows particular modules to handle subrequests properly.
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273 b->last_buf = (r == r->main) ? 1 : 0; |
577 | 274 b->last_in_chain = 1; |
275 | |
1696 | 276 b->file->fd = of.fd; |
557 | 277 b->file->name = path; |
343
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nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
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278 b->file->log = log; |
2231
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*) handle unaligned file part for directio
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279 b->file->directio = of.is_directio; |
343
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280 |
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nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
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281 out.buf = b; |
153
c71aeb75c071
nginx-0.0.1-2003-10-21-20:49:56 import
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148
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282 out.next = NULL; |
c71aeb75c071
nginx-0.0.1-2003-10-21-20:49:56 import
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283 |
c71aeb75c071
nginx-0.0.1-2003-10-21-20:49:56 import
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284 return ngx_http_output_filter(r, &out); |
1
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nginx-0.0.1-2002-08-15-21:20:26 import
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285 } |
148
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nginx-0.0.1-2003-10-17-00:19:16 import
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286 |
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nginx-0.0.1-2003-10-17-00:19:16 import
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287 |
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288 static void * |
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289 ngx_http_gzip_static_create_conf(ngx_conf_t *cf) |
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290 { |
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291 ngx_http_gzip_static_conf_t *conf; |
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292 |
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293 conf = ngx_palloc(cf->pool, sizeof(ngx_http_gzip_static_conf_t)); |
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294 if (conf == NULL) { |
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return NULL instead of NGX_CONF_ERROR on a create conf failure
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295 return NULL; |
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296 } |
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297 |
4836
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298 conf->enable = NGX_CONF_UNSET_UINT; |
1790
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299 |
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300 return conf; |
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301 } |
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302 |
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303 |
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304 static char * |
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305 ngx_http_gzip_static_merge_conf(ngx_conf_t *cf, void *parent, void *child) |
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306 { |
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307 ngx_http_gzip_static_conf_t *prev = parent; |
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308 ngx_http_gzip_static_conf_t *conf = child; |
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309 |
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310 ngx_conf_merge_uint_value(conf->enable, prev->enable, |
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311 NGX_HTTP_GZIP_STATIC_OFF); |
1790
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312 |
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313 return NGX_CONF_OK; |
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314 } |
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315 |
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316 |
509 | 317 static ngx_int_t |
1790
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318 ngx_http_gzip_static_init(ngx_conf_t *cf) |
148
5afee0074707
nginx-0.0.1-2003-10-17-00:19:16 import
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143
diff
changeset
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319 { |
5afee0074707
nginx-0.0.1-2003-10-17-00:19:16 import
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320 ngx_http_handler_pt *h; |
5afee0074707
nginx-0.0.1-2003-10-17-00:19:16 import
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143
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321 ngx_http_core_main_conf_t *cmcf; |
396
6f3b20c1ac50
nginx-0.0.7-2004-07-18-23:11:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
322 |
681 | 323 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); |
577 | 324 |
501 | 325 h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers); |
201
267ea1d98683
nginx-0.0.1-2003-11-30-23:03:18 import
Igor Sysoev <igor@sysoev.ru>
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200
diff
changeset
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326 if (h == NULL) { |
267ea1d98683
nginx-0.0.1-2003-11-30-23:03:18 import
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200
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327 return NGX_ERROR; |
267ea1d98683
nginx-0.0.1-2003-11-30-23:03:18 import
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200
diff
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328 } |
267ea1d98683
nginx-0.0.1-2003-11-30-23:03:18 import
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200
diff
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329 |
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330 *h = ngx_http_gzip_static_handler; |
148
5afee0074707
nginx-0.0.1-2003-10-17-00:19:16 import
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143
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331 |
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332 return NGX_OK; |
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333 } |