Mercurial > hg > nginx
annotate src/http/modules/ngx_http_headers_filter_module.c @ 709:3bd0d8642ad6
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author | Igor Sysoev <igor@sysoev.ru> |
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date | Sat, 23 Sep 2006 13:02:57 +0000 |
parents | 7e24168b0853 |
children | 52d1379de54e |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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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; | |
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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 void *ngx_http_headers_create_conf(ngx_conf_t *cf); |
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32 static char *ngx_http_headers_merge_conf(ngx_conf_t *cf, |
573 | 33 void *parent, void *child); |
681 | 34 static ngx_int_t ngx_http_headers_filter_init(ngx_conf_t *cf); |
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 | |
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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 */ |
681 | 65 ngx_http_headers_filter_init, /* postconfiguration */ |
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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, |
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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 */ |
681 | 84 NULL, /* 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 | |
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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) | |
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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 { |
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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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184 } |
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185 |
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diff
changeset
|
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
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|
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
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parents:
diff
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|
197 cc->value.len = sizeof("no-cache") - 1; |
8733703a37f3
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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
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|
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; | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
210 } |
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
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|
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 |
573 | 215 if (conf->cache_control.len) { |
216 | |
217 ccp = r->headers_out.cache_control.elts; | |
218 | |
219 if (ccp == NULL) { | |
220 | |
221 if (ngx_array_init(&r->headers_out.cache_control, r->pool, | |
222 1, sizeof(ngx_table_elt_t *)) | |
223 != NGX_OK) | |
224 { | |
225 return NGX_ERROR; | |
226 } | |
227 } | |
228 | |
229 ccp = ngx_array_push(&r->headers_out.cache_control); | |
230 if (ccp == NULL) { | |
231 return NGX_ERROR; | |
232 } | |
233 | |
234 cc = ngx_list_push(&r->headers_out.headers); | |
235 if (cc == NULL) { | |
236 return NGX_ERROR; | |
237 } | |
238 | |
239 cc->hash = 1; | |
240 cc->key.len = sizeof("Cache-Control") - 1; | |
241 cc->key.data = (u_char *) "Cache-Control"; | |
242 cc->value = conf->cache_control; | |
243 | |
244 *ccp = cc; | |
245 } | |
246 | |
247 if (conf->headers) { | |
248 h = conf->headers->elts; | |
249 for (i = 0; i < conf->headers->nelts; i++) { | |
250 out = ngx_list_push(&r->headers_out.headers); | |
251 if (out == NULL) { | |
252 return NGX_ERROR; | |
253 } | |
254 | |
625 | 255 out->hash = h[i].value.hash; |
256 out->key = h[i].value.key; | |
257 | |
258 if (h[i].lengths == NULL) { | |
259 out->value = h[i].value.value; | |
260 continue; | |
261 } | |
262 | |
263 if (ngx_http_script_run(r, &out->value, h[i].lengths->elts, 0, | |
264 h[i].values->elts) | |
265 == NULL) | |
266 { | |
267 return NGX_ERROR; | |
268 } | |
573 | 269 } |
270 } | |
271 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
272 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
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|
273 } |
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
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|
275 |
501 | 276 static void * |
277 ngx_http_headers_create_conf(ngx_conf_t *cf) | |
577 | 278 { |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
279 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
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|
280 |
573 | 281 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_headers_conf_t)); |
501 | 282 if (conf == NULL) { |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
283 return NGX_CONF_ERROR; |
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
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|
285 |
573 | 286 /* |
287 * set by ngx_pcalloc(): | |
288 * | |
289 * conf->cache_control.len = 0; | |
290 * conf->cache_control.data = NULL; | |
291 * conf->headers = NULL; | |
292 */ | |
293 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
294 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
|
295 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
296 return conf; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
297 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
298 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
299 |
501 | 300 static char * |
301 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
|
302 { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
303 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
|
304 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
|
305 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
306 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
|
307 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
|
308 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
|
309 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
310 |
573 | 311 if (conf->cache_control.data == NULL) { |
312 conf->cache_control = prev->cache_control; | |
313 } | |
314 | |
315 if (conf->headers == NULL) { | |
316 conf->headers = prev->headers; | |
317 } | |
318 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
319 return NGX_CONF_OK; |
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 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
322 |
681 | 323 static ngx_int_t |
324 ngx_http_headers_filter_init(ngx_conf_t *cf) | |
325 { | |
326 ngx_http_next_header_filter = ngx_http_top_header_filter; | |
327 ngx_http_top_header_filter = ngx_http_headers_filter; | |
328 | |
329 return NGX_OK; | |
330 } | |
331 | |
332 | |
501 | 333 static char * |
334 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
|
335 { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
336 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
|
337 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
338 ngx_uint_t minus; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
339 ngx_str_t *value; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
340 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
341 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
|
342 return "is duplicate"; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
343 } |
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 value = cf->args->elts; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
346 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
347 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
|
348 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
|
349 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
350 } |
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 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
|
353 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
|
354 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
355 } |
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 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
|
358 value[1].data++; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
359 value[1].len--; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
360 minus = 0; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
361 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
362 } 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
|
363 value[1].data++; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
364 value[1].len--; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
365 minus = 1; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
366 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
367 } else { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
368 minus = 0; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
369 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
370 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
371 hcf->expires = ngx_parse_time(&value[1], 1); |
501 | 372 |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
373 if (hcf->expires == NGX_ERROR) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
374 return "invalid value"; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
375 } |
577 | 376 |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
377 if (hcf->expires == NGX_PARSE_LARGE_TIME) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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378 return "value must be less than 68 years"; |
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379 } |
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380 |
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381 if (minus) { |
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382 hcf->expires = - hcf->expires; |
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383 } |
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384 |
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385 return NGX_CONF_OK; |
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386 } |
573 | 387 |
388 | |
389 static char * | |
390 ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
391 { | |
392 ngx_http_headers_conf_t *hcf = conf; | |
393 | |
625 | 394 ngx_int_t n; |
395 ngx_str_t *value; | |
396 ngx_http_header_val_t *h; | |
397 ngx_http_script_compile_t sc; | |
573 | 398 |
399 value = cf->args->elts; | |
400 | |
401 if (ngx_strcasecmp(value[1].data, "cache-control") == 0) { | |
402 hcf->cache_control = value[2]; | |
403 return NGX_CONF_OK; | |
404 } | |
405 | |
406 if (hcf->headers == NULL) { | |
625 | 407 hcf->headers = ngx_array_create(cf->pool, 1, |
408 sizeof(ngx_http_header_val_t)); | |
573 | 409 if (hcf->headers == NULL) { |
410 return NGX_CONF_ERROR; | |
411 } | |
412 } | |
413 | |
414 h = ngx_array_push(hcf->headers); | |
415 if (h == NULL) { | |
416 return NGX_CONF_ERROR; | |
417 } | |
418 | |
625 | 419 h->value.hash = 1; |
420 h->value.key = value[1]; | |
421 h->value.value = value[2]; | |
422 h->lengths = NULL; | |
423 h->values = NULL; | |
424 | |
425 n = ngx_http_script_variables_count(&value[2]); | |
426 | |
427 if (n == 0) { | |
428 return NGX_CONF_OK; | |
429 } | |
430 | |
431 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
432 | |
433 sc.cf = cf; | |
434 sc.source = &value[2]; | |
435 sc.lengths = &h->lengths; | |
436 sc.values = &h->values; | |
437 sc.variables = n; | |
438 sc.complete_lengths = 1; | |
439 sc.complete_values = 1; | |
440 | |
441 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
442 return NGX_CONF_ERROR; | |
443 } | |
573 | 444 |
445 return NGX_CONF_OK; | |
446 } |