Mercurial > hg > nginx
annotate src/http/modules/ngx_http_headers_filter_module.c @ 666:ddaa33b0817a
release-0.3.54 tag
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 11 Jul 2006 13:20:19 +0000 |
parents | 6d5c1535bb9d |
children | 7e24168b0853 |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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10 |
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11 |
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12 typedef struct { |
625 | 13 ngx_table_elt_t value; |
14 ngx_array_t *lengths; | |
15 ngx_array_t *values; | |
16 } ngx_http_header_val_t; | |
17 | |
18 | |
19 typedef struct { | |
20 time_t expires; | |
21 ngx_str_t cache_control; | |
22 ngx_array_t *headers; | |
326
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23 } ngx_http_headers_conf_t; |
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24 |
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25 |
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26 #define NGX_HTTP_EXPIRES_UNSET -2147483647 |
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27 #define NGX_HTTP_EXPIRES_OFF -2147483646 |
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28 #define NGX_HTTP_EXPIRES_EPOCH -2147483645 |
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29 |
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30 |
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31 static ngx_int_t ngx_http_headers_filter_init(ngx_cycle_t *cycle); |
326
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32 static void *ngx_http_headers_create_conf(ngx_conf_t *cf); |
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33 static char *ngx_http_headers_merge_conf(ngx_conf_t *cf, |
573 | 34 void *parent, void *child); |
501 | 35 static char *ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, |
36 void *conf); | |
573 | 37 static char *ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, |
38 void *conf); | |
326
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39 |
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40 |
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41 static ngx_command_t ngx_http_headers_filter_commands[] = { |
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42 |
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43 { ngx_string("expires"), |
573 | 44 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
45 |NGX_CONF_TAKE1, | |
326
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46 ngx_http_headers_expires, |
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47 NGX_HTTP_LOC_CONF_OFFSET, |
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48 0, |
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49 NULL}, |
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50 |
573 | 51 { ngx_string("add_header"), |
52 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
53 |NGX_CONF_TAKE2, | |
54 ngx_http_headers_add, | |
55 NGX_HTTP_LOC_CONF_OFFSET, | |
56 0, | |
57 NULL}, | |
58 | |
326
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59 ngx_null_command |
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60 }; |
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61 |
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62 |
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63 static ngx_http_module_t ngx_http_headers_filter_module_ctx = { |
509 | 64 NULL, /* preconfiguration */ |
65 NULL, /* postconfiguration */ | |
326
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66 |
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67 NULL, /* create main configuration */ |
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68 NULL, /* init main configuration */ |
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69 |
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70 NULL, /* create server configuration */ |
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71 NULL, /* merge server configuration */ |
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72 |
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73 ngx_http_headers_create_conf, /* create location configuration */ |
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74 ngx_http_headers_merge_conf /* merge location configuration */ |
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75 }; |
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76 |
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77 |
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78 ngx_module_t ngx_http_headers_filter_module = { |
509 | 79 NGX_MODULE_V1, |
326
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80 &ngx_http_headers_filter_module_ctx, /* module context */ |
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81 ngx_http_headers_filter_commands, /* module directives */ |
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82 NGX_HTTP_MODULE, /* module type */ |
541 | 83 NULL, /* init master */ |
326
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84 ngx_http_headers_filter_init, /* init module */ |
541 | 85 NULL, /* init process */ |
86 NULL, /* init thread */ | |
87 NULL, /* exit thread */ | |
88 NULL, /* exit process */ | |
89 NULL, /* exit master */ | |
90 NGX_MODULE_V1_PADDING | |
326
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91 }; |
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92 |
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93 |
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94 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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95 |
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96 |
501 | 97 static ngx_int_t |
98 ngx_http_headers_filter(ngx_http_request_t *r) | |
326
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99 { |
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100 size_t len; |
509 | 101 ngx_uint_t i; |
625 | 102 ngx_table_elt_t *expires, *cc, **ccp, *out; |
103 ngx_http_header_val_t *h; | |
326
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104 ngx_http_headers_conf_t *conf; |
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105 |
663 | 106 if (r != r->main |
107 || (r->headers_out.status != NGX_HTTP_OK | |
108 && r->headers_out.status != NGX_HTTP_NO_CONTENT | |
109 && r->headers_out.status != NGX_HTTP_MOVED_PERMANENTLY | |
110 && r->headers_out.status != NGX_HTTP_MOVED_TEMPORARILY | |
111 && r->headers_out.status != NGX_HTTP_NOT_MODIFIED)) | |
543 | 112 { |
326
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113 return ngx_http_next_header_filter(r); |
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114 } |
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115 |
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116 conf = ngx_http_get_module_loc_conf(r, ngx_http_headers_filter_module); |
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117 |
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118 if (conf->expires != NGX_HTTP_EXPIRES_OFF) { |
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119 |
509 | 120 expires = r->headers_out.expires; |
121 | |
501 | 122 if (expires == NULL) { |
509 | 123 |
124 expires = ngx_list_push(&r->headers_out.headers); | |
125 if (expires == NULL) { | |
126 return NGX_ERROR; | |
127 } | |
128 | |
129 r->headers_out.expires = expires; | |
130 | |
131 expires->hash = 1; | |
132 expires->key.len = sizeof("Expires") - 1; | |
133 expires->key.data = (u_char *) "Expires"; | |
326
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134 } |
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135 |
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136 len = sizeof("Mon, 28 Sep 1970 06:00:00 GMT"); |
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137 expires->value.len = len - 1; |
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138 |
537 | 139 ccp = r->headers_out.cache_control.elts; |
140 | |
141 if (ccp == NULL) { | |
509 | 142 |
537 | 143 if (ngx_array_init(&r->headers_out.cache_control, r->pool, |
573 | 144 1, sizeof(ngx_table_elt_t *)) |
145 != NGX_OK) | |
537 | 146 { |
147 return NGX_ERROR; | |
148 } | |
149 | |
150 ccp = ngx_array_push(&r->headers_out.cache_control); | |
151 if (ccp == NULL) { | |
152 return NGX_ERROR; | |
153 } | |
509 | 154 |
155 cc = ngx_list_push(&r->headers_out.headers); | |
156 if (cc == NULL) { | |
157 return NGX_ERROR; | |
158 } | |
159 | |
160 cc->hash = 1; | |
161 cc->key.len = sizeof("Cache-Control") - 1; | |
162 cc->key.data = (u_char *) "Cache-Control"; | |
163 | |
537 | 164 *ccp = cc; |
165 | |
509 | 166 } else { |
167 for (i = 1; i < r->headers_out.cache_control.nelts; i++) { | |
537 | 168 ccp[i]->hash = 0; |
509 | 169 } |
537 | 170 |
171 cc = ccp[0]; | |
509 | 172 } |
326
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173 |
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174 if (conf->expires == NGX_HTTP_EXPIRES_EPOCH) { |
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175 expires->value.data = (u_char *) "Thu, 01 Jan 1970 00:00:01 GMT"; |
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176 |
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177 cc->value.len = sizeof("no-cache") - 1; |
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178 cc->value.data = (u_char *) "no-cache"; |
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179 |
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180 } else { |
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181 expires->value.data = ngx_palloc(r->pool, len); |
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182 if (expires->value.data == NULL) { |
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183 return NGX_ERROR; |
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parents:
diff
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|
184 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
185 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
186 if (conf->expires == 0) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
187 ngx_memcpy(expires->value.data, ngx_cached_http_time.data, |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
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parents:
diff
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|
188 ngx_cached_http_time.len + 1); |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
189 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
190 cc->value.len = sizeof("max-age=0") - 1; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
191 cc->value.data = (u_char *) "max-age=0"; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
192 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
193 } else { |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
356
diff
changeset
|
194 ngx_http_time(expires->value.data, ngx_time() + conf->expires); |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
195 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
196 if (conf->expires < 0) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
197 cc->value.len = sizeof("no-cache") - 1; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
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parents:
diff
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|
198 cc->value.data = (u_char *) "no-cache"; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
199 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
200 } else { |
477 | 201 cc->value.data = ngx_palloc(r->pool, sizeof("max-age=") |
202 + NGX_TIME_T_LEN + 1); | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
203 if (cc->value.data == NULL) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
204 return NGX_ERROR; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
205 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
206 |
455 | 207 cc->value.len = ngx_sprintf(cc->value.data, "max-age=%T", |
208 conf->expires) | |
209 - cc->value.data; | |
210 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
211 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
212 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
213 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
214 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
215 |
573 | 216 if (conf->cache_control.len) { |
217 | |
218 ccp = r->headers_out.cache_control.elts; | |
219 | |
220 if (ccp == NULL) { | |
221 | |
222 if (ngx_array_init(&r->headers_out.cache_control, r->pool, | |
223 1, sizeof(ngx_table_elt_t *)) | |
224 != NGX_OK) | |
225 { | |
226 return NGX_ERROR; | |
227 } | |
228 } | |
229 | |
230 ccp = ngx_array_push(&r->headers_out.cache_control); | |
231 if (ccp == NULL) { | |
232 return NGX_ERROR; | |
233 } | |
234 | |
235 cc = ngx_list_push(&r->headers_out.headers); | |
236 if (cc == NULL) { | |
237 return NGX_ERROR; | |
238 } | |
239 | |
240 cc->hash = 1; | |
241 cc->key.len = sizeof("Cache-Control") - 1; | |
242 cc->key.data = (u_char *) "Cache-Control"; | |
243 cc->value = conf->cache_control; | |
244 | |
245 *ccp = cc; | |
246 } | |
247 | |
248 if (conf->headers) { | |
249 h = conf->headers->elts; | |
250 for (i = 0; i < conf->headers->nelts; i++) { | |
251 out = ngx_list_push(&r->headers_out.headers); | |
252 if (out == NULL) { | |
253 return NGX_ERROR; | |
254 } | |
255 | |
625 | 256 out->hash = h[i].value.hash; |
257 out->key = h[i].value.key; | |
258 | |
259 if (h[i].lengths == NULL) { | |
260 out->value = h[i].value.value; | |
261 continue; | |
262 } | |
263 | |
264 if (ngx_http_script_run(r, &out->value, h[i].lengths->elts, 0, | |
265 h[i].values->elts) | |
266 == NULL) | |
267 { | |
268 return NGX_ERROR; | |
269 } | |
573 | 270 } |
271 } | |
272 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
273 return ngx_http_next_header_filter(r); |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
274 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
275 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
276 |
501 | 277 static ngx_int_t |
278 ngx_http_headers_filter_init(ngx_cycle_t *cycle) | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
279 { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
280 ngx_http_next_header_filter = ngx_http_top_header_filter; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
281 ngx_http_top_header_filter = ngx_http_headers_filter; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
282 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
283 return NGX_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
284 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
285 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
286 |
501 | 287 static void * |
288 ngx_http_headers_create_conf(ngx_conf_t *cf) | |
577 | 289 { |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
290 ngx_http_headers_conf_t *conf; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
291 |
573 | 292 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_headers_conf_t)); |
501 | 293 if (conf == NULL) { |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
294 return NGX_CONF_ERROR; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
295 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
296 |
573 | 297 /* |
298 * set by ngx_pcalloc(): | |
299 * | |
300 * conf->cache_control.len = 0; | |
301 * conf->cache_control.data = NULL; | |
302 * conf->headers = NULL; | |
303 */ | |
304 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
305 conf->expires = NGX_HTTP_EXPIRES_UNSET; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
306 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
307 return conf; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
308 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
309 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
310 |
501 | 311 static char * |
312 ngx_http_headers_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
313 { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
314 ngx_http_headers_conf_t *prev = parent; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
315 ngx_http_headers_conf_t *conf = child; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
316 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
317 if (conf->expires == NGX_HTTP_EXPIRES_UNSET) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
318 conf->expires = (prev->expires == NGX_HTTP_EXPIRES_UNSET) ? |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
319 NGX_HTTP_EXPIRES_OFF : prev->expires; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
320 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
321 |
573 | 322 if (conf->cache_control.data == NULL) { |
323 conf->cache_control = prev->cache_control; | |
324 } | |
325 | |
326 if (conf->headers == NULL) { | |
327 conf->headers = prev->headers; | |
328 } | |
329 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
330 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
331 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
332 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
333 |
501 | 334 static char * |
335 ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
336 { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
337 ngx_http_headers_conf_t *hcf = conf; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
338 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
339 ngx_uint_t minus; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
340 ngx_str_t *value; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
341 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
342 if (hcf->expires != NGX_HTTP_EXPIRES_UNSET) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
343 return "is duplicate"; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
344 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
345 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
346 value = cf->args->elts; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
347 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
348 if (ngx_strcmp(value[1].data, "epoch") == 0) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
349 hcf->expires = NGX_HTTP_EXPIRES_EPOCH; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
350 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
351 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
352 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
353 if (ngx_strcmp(value[1].data, "off") == 0) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
354 hcf->expires = NGX_HTTP_EXPIRES_OFF; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
355 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
356 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
357 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
358 if (value[1].data[0] == '+') { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
359 value[1].data++; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
360 value[1].len--; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
361 minus = 0; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
362 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
363 } else if (value[1].data[0] == '-') { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
364 value[1].data++; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
365 value[1].len--; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
366 minus = 1; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
367 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
368 } else { |
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369 minus = 0; |
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370 } |
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371 |
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372 hcf->expires = ngx_parse_time(&value[1], 1); |
501 | 373 |
326
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374 if (hcf->expires == NGX_ERROR) { |
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375 return "invalid value"; |
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376 } |
577 | 377 |
326
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378 if (hcf->expires == NGX_PARSE_LARGE_TIME) { |
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379 return "value must be less than 68 years"; |
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380 } |
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381 |
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382 if (minus) { |
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383 hcf->expires = - hcf->expires; |
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384 } |
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385 |
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386 return NGX_CONF_OK; |
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387 } |
573 | 388 |
389 | |
390 static char * | |
391 ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
392 { | |
393 ngx_http_headers_conf_t *hcf = conf; | |
394 | |
625 | 395 ngx_int_t n; |
396 ngx_str_t *value; | |
397 ngx_http_header_val_t *h; | |
398 ngx_http_script_compile_t sc; | |
573 | 399 |
400 value = cf->args->elts; | |
401 | |
402 if (ngx_strcasecmp(value[1].data, "cache-control") == 0) { | |
403 hcf->cache_control = value[2]; | |
404 return NGX_CONF_OK; | |
405 } | |
406 | |
407 if (hcf->headers == NULL) { | |
625 | 408 hcf->headers = ngx_array_create(cf->pool, 1, |
409 sizeof(ngx_http_header_val_t)); | |
573 | 410 if (hcf->headers == NULL) { |
411 return NGX_CONF_ERROR; | |
412 } | |
413 } | |
414 | |
415 h = ngx_array_push(hcf->headers); | |
416 if (h == NULL) { | |
417 return NGX_CONF_ERROR; | |
418 } | |
419 | |
625 | 420 h->value.hash = 1; |
421 h->value.key = value[1]; | |
422 h->value.value = value[2]; | |
423 h->lengths = NULL; | |
424 h->values = NULL; | |
425 | |
426 n = ngx_http_script_variables_count(&value[2]); | |
427 | |
428 if (n == 0) { | |
429 return NGX_CONF_OK; | |
430 } | |
431 | |
432 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
433 | |
434 sc.cf = cf; | |
435 sc.source = &value[2]; | |
436 sc.lengths = &h->lengths; | |
437 sc.values = &h->values; | |
438 sc.variables = n; | |
439 sc.complete_lengths = 1; | |
440 sc.complete_values = 1; | |
441 | |
442 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
443 return NGX_CONF_ERROR; | |
444 } | |
573 | 445 |
446 return NGX_CONF_OK; | |
447 } |