Mercurial > hg > nginx
annotate src/http/ngx_http_variables.c @ 1341:7683aace65ed stable-0.5
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author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Tue, 24 Jul 2007 14:36:21 +0000 |
parents | adb6d251ac92 |
children | 8682f64fccb3 |
rev | line source |
---|---|
499 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
9 #include <ngx_event.h> | |
10 #include <ngx_http.h> | |
1331 | 11 #include <nginx.h> |
499 | 12 |
13 | |
573 | 14 static ngx_int_t ngx_http_variable_request(ngx_http_request_t *r, |
15 ngx_http_variable_value_t *v, uintptr_t data); | |
637 | 16 static void ngx_http_variable_request_set_size(ngx_http_request_t *r, |
17 ngx_http_variable_value_t *v, uintptr_t data); | |
573 | 18 static ngx_int_t ngx_http_variable_header(ngx_http_request_t *r, |
19 ngx_http_variable_value_t *v, uintptr_t data); | |
20 static ngx_int_t ngx_http_variable_headers(ngx_http_request_t *r, | |
21 ngx_http_variable_value_t *v, uintptr_t data); | |
577 | 22 |
23 static ngx_int_t ngx_http_variable_unknown_header_in(ngx_http_request_t *r, | |
573 | 24 ngx_http_variable_value_t *v, uintptr_t data); |
577 | 25 static ngx_int_t ngx_http_variable_unknown_header_out(ngx_http_request_t *r, |
26 ngx_http_variable_value_t *v, uintptr_t data); | |
27 | |
573 | 28 static ngx_int_t ngx_http_variable_host(ngx_http_request_t *r, |
29 ngx_http_variable_value_t *v, uintptr_t data); | |
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ngx_http_variable_binary_remote_addr()
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30 static ngx_int_t ngx_http_variable_binary_remote_addr(ngx_http_request_t *r, |
7a8ca436d611
ngx_http_variable_binary_remote_addr()
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31 ngx_http_variable_value_t *v, uintptr_t data); |
573 | 32 static ngx_int_t ngx_http_variable_remote_addr(ngx_http_request_t *r, |
33 ngx_http_variable_value_t *v, uintptr_t data); | |
34 static ngx_int_t ngx_http_variable_remote_port(ngx_http_request_t *r, | |
35 ngx_http_variable_value_t *v, uintptr_t data); | |
36 static ngx_int_t ngx_http_variable_server_addr(ngx_http_request_t *r, | |
37 ngx_http_variable_value_t *v, uintptr_t data); | |
38 static ngx_int_t ngx_http_variable_server_port(ngx_http_request_t *r, | |
39 ngx_http_variable_value_t *v, uintptr_t data); | |
731 | 40 static ngx_int_t ngx_http_variable_scheme(ngx_http_request_t *r, |
41 ngx_http_variable_value_t *v, uintptr_t data); | |
573 | 42 static ngx_int_t ngx_http_variable_document_root(ngx_http_request_t *r, |
43 ngx_http_variable_value_t *v, uintptr_t data); | |
44 static ngx_int_t ngx_http_variable_request_filename(ngx_http_request_t *r, | |
45 ngx_http_variable_value_t *v, uintptr_t data); | |
46 static ngx_int_t ngx_http_variable_request_method(ngx_http_request_t *r, | |
47 ngx_http_variable_value_t *v, uintptr_t data); | |
48 static ngx_int_t ngx_http_variable_remote_user(ngx_http_request_t *r, | |
49 ngx_http_variable_value_t *v, uintptr_t data); | |
611 | 50 static ngx_int_t ngx_http_variable_body_bytes_sent(ngx_http_request_t *r, |
51 ngx_http_variable_value_t *v, uintptr_t data); | |
629 | 52 static ngx_int_t ngx_http_variable_request_completion(ngx_http_request_t *r, |
53 ngx_http_variable_value_t *v, uintptr_t data); | |
759 | 54 static ngx_int_t ngx_http_variable_request_body_file(ngx_http_request_t *r, |
55 ngx_http_variable_value_t *v, uintptr_t data); | |
499 | 56 |
641 | 57 static ngx_int_t ngx_http_variable_sent_content_type(ngx_http_request_t *r, |
58 ngx_http_variable_value_t *v, uintptr_t data); | |
59 static ngx_int_t ngx_http_variable_sent_content_length(ngx_http_request_t *r, | |
60 ngx_http_variable_value_t *v, uintptr_t data); | |
61 static ngx_int_t ngx_http_variable_sent_last_modified(ngx_http_request_t *r, | |
62 ngx_http_variable_value_t *v, uintptr_t data); | |
63 static ngx_int_t ngx_http_variable_sent_connection(ngx_http_request_t *r, | |
64 ngx_http_variable_value_t *v, uintptr_t data); | |
65 static ngx_int_t ngx_http_variable_sent_keep_alive(ngx_http_request_t *r, | |
66 ngx_http_variable_value_t *v, uintptr_t data); | |
67 static ngx_int_t ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r, | |
68 ngx_http_variable_value_t *v, uintptr_t data); | |
69 | |
1331 | 70 static ngx_int_t ngx_http_variable_nginx_version(ngx_http_request_t *r, |
71 ngx_http_variable_value_t *v, uintptr_t data); | |
499 | 72 |
509 | 73 /* |
74 * TODO: | |
75 * Apache CGI: AUTH_TYPE, PATH_INFO (null), PATH_TRANSLATED | |
76 * REMOTE_HOST (null), REMOTE_IDENT (null), | |
77 * SERVER_SOFTWARE | |
78 * | |
571 | 79 * Apache SSI: DOCUMENT_NAME, LAST_MODIFIED, USER_NAME (file owner) |
509 | 80 */ |
499 | 81 |
641 | 82 /* |
83 * the $http_host, $http_user_agent, $http_referer, $http_via, | |
84 * and $http_x_forwarded_for variables may be handled by generic | |
85 * ngx_http_variable_unknown_header_in(), but for perfomance reasons | |
86 * they are handled using dedicated entries | |
87 */ | |
88 | |
509 | 89 static ngx_http_variable_t ngx_http_core_variables[] = { |
90 | |
637 | 91 { ngx_string("http_host"), NULL, ngx_http_variable_header, |
533 | 92 offsetof(ngx_http_request_t, headers_in.host), 0, 0 }, |
499 | 93 |
637 | 94 { ngx_string("http_user_agent"), NULL, ngx_http_variable_header, |
533 | 95 offsetof(ngx_http_request_t, headers_in.user_agent), 0, 0 }, |
509 | 96 |
637 | 97 { ngx_string("http_referer"), NULL, ngx_http_variable_header, |
533 | 98 offsetof(ngx_http_request_t, headers_in.referer), 0, 0 }, |
499 | 99 |
100 #if (NGX_HTTP_GZIP) | |
637 | 101 { ngx_string("http_via"), NULL, ngx_http_variable_header, |
533 | 102 offsetof(ngx_http_request_t, headers_in.via), 0, 0 }, |
499 | 103 #endif |
104 | |
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105 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP) |
637 | 106 { ngx_string("http_x_forwarded_for"), NULL, ngx_http_variable_header, |
533 | 107 offsetof(ngx_http_request_t, headers_in.x_forwarded_for), 0, 0 }, |
499 | 108 #endif |
109 | |
637 | 110 { ngx_string("http_cookie"), NULL, ngx_http_variable_headers, |
533 | 111 offsetof(ngx_http_request_t, headers_in.cookies), 0, 0 }, |
515 | 112 |
637 | 113 { ngx_string("content_length"), NULL, ngx_http_variable_header, |
533 | 114 offsetof(ngx_http_request_t, headers_in.content_length), 0, 0 }, |
509 | 115 |
637 | 116 { ngx_string("content_type"), NULL, ngx_http_variable_header, |
533 | 117 offsetof(ngx_http_request_t, headers_in.content_type), 0, 0 }, |
509 | 118 |
637 | 119 { ngx_string("host"), NULL, ngx_http_variable_host, 0, 0, 0 }, |
509 | 120 |
982 | 121 { ngx_string("binary_remote_addr"), NULL, |
983
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ngx_http_variable_binary_remote_addr()
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parents:
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diff
changeset
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122 ngx_http_variable_binary_remote_addr, 0, 0, 0 }, |
982 | 123 |
637 | 124 { ngx_string("remote_addr"), NULL, ngx_http_variable_remote_addr, 0, 0, 0 }, |
499 | 125 |
637 | 126 { ngx_string("remote_port"), NULL, ngx_http_variable_remote_port, 0, 0, 0 }, |
509 | 127 |
637 | 128 { ngx_string("server_addr"), NULL, ngx_http_variable_server_addr, 0, 0, 0 }, |
509 | 129 |
637 | 130 { ngx_string("server_port"), NULL, ngx_http_variable_server_port, 0, 0, 0 }, |
509 | 131 |
637 | 132 { ngx_string("server_protocol"), NULL, ngx_http_variable_request, |
533 | 133 offsetof(ngx_http_request_t, http_protocol), 0, 0 }, |
509 | 134 |
731 | 135 { ngx_string("scheme"), NULL, ngx_http_variable_scheme, 0, 0, 0 }, |
136 | |
637 | 137 { ngx_string("request_uri"), NULL, ngx_http_variable_request, |
533 | 138 offsetof(ngx_http_request_t, unparsed_uri), 0, 0 }, |
499 | 139 |
637 | 140 { ngx_string("uri"), NULL, ngx_http_variable_request, |
141 offsetof(ngx_http_request_t, uri), | |
142 NGX_HTTP_VAR_NOCACHABLE, 0 }, | |
143 | |
144 { ngx_string("document_uri"), NULL, ngx_http_variable_request, | |
573 | 145 offsetof(ngx_http_request_t, uri), |
146 NGX_HTTP_VAR_NOCACHABLE, 0 }, | |
147 | |
637 | 148 { ngx_string("request"), NULL, ngx_http_variable_request, |
569 | 149 offsetof(ngx_http_request_t, request_line), 0, 0 }, |
150 | |
637 | 151 { ngx_string("document_root"), NULL, |
671 | 152 ngx_http_variable_document_root, 0, NGX_HTTP_VAR_NOCACHABLE, 0 }, |
509 | 153 |
637 | 154 { ngx_string("query_string"), NULL, ngx_http_variable_request, |
509 | 155 offsetof(ngx_http_request_t, args), |
533 | 156 NGX_HTTP_VAR_NOCACHABLE, 0 }, |
499 | 157 |
637 | 158 { ngx_string("args"), NULL, ngx_http_variable_request, |
589 | 159 offsetof(ngx_http_request_t, args), |
160 NGX_HTTP_VAR_NOCACHABLE, 0 }, | |
161 | |
637 | 162 { ngx_string("request_filename"), NULL, |
163 ngx_http_variable_request_filename, 0, | |
533 | 164 NGX_HTTP_VAR_NOCACHABLE, 0 }, |
509 | 165 |
637 | 166 { ngx_string("server_name"), NULL, ngx_http_variable_request, |
533 | 167 offsetof(ngx_http_request_t, server_name), 0, 0 }, |
509 | 168 |
637 | 169 { ngx_string("request_method"), NULL, |
170 ngx_http_variable_request_method, 0, 0, 0 }, | |
509 | 171 |
637 | 172 { ngx_string("remote_user"), NULL, ngx_http_variable_remote_user, 0, 0, 0 }, |
509 | 173 |
637 | 174 { ngx_string("body_bytes_sent"), NULL, ngx_http_variable_body_bytes_sent, |
611 | 175 0, 0, 0 }, |
176 | |
637 | 177 { ngx_string("request_completion"), NULL, |
178 ngx_http_variable_request_completion, | |
629 | 179 0, 0, 0 }, |
180 | |
759 | 181 { ngx_string("request_body_file"), NULL, |
182 ngx_http_variable_request_body_file, | |
183 0, 0, 0 }, | |
184 | |
641 | 185 { ngx_string("sent_http_content_type"), NULL, |
186 ngx_http_variable_sent_content_type, 0, 0, 0 }, | |
187 | |
188 { ngx_string("sent_http_content_length"), NULL, | |
189 ngx_http_variable_sent_content_length, 0, 0, 0 }, | |
190 | |
191 { ngx_string("sent_http_last_modified"), NULL, | |
192 ngx_http_variable_sent_last_modified, 0, 0, 0 }, | |
193 | |
194 { ngx_string("sent_http_connection"), NULL, | |
195 ngx_http_variable_sent_connection, 0, 0, 0 }, | |
196 | |
197 { ngx_string("sent_http_keep_alive"), NULL, | |
198 ngx_http_variable_sent_keep_alive, 0, 0, 0 }, | |
199 | |
200 { ngx_string("sent_http_transfer_encoding"), NULL, | |
201 ngx_http_variable_sent_transfer_encoding, 0, 0, 0 }, | |
202 | |
203 { ngx_string("sent_http_cache_control"), NULL, ngx_http_variable_headers, | |
204 offsetof(ngx_http_request_t, headers_out.cache_control), 0, 0 }, | |
205 | |
637 | 206 { ngx_string("limit_rate"), ngx_http_variable_request_set_size, |
207 ngx_http_variable_request, | |
208 offsetof(ngx_http_request_t, limit_rate), | |
209 NGX_HTTP_VAR_CHANGABLE|NGX_HTTP_VAR_NOCACHABLE, 0 }, | |
210 | |
1331 | 211 { ngx_string("nginx_version"), NULL, ngx_http_variable_nginx_version, |
212 0, 0, 0 }, | |
213 | |
637 | 214 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
499 | 215 }; |
216 | |
217 | |
577 | 218 ngx_http_variable_value_t ngx_http_variable_null_value = |
219 ngx_http_variable(""); | |
220 ngx_http_variable_value_t ngx_http_variable_true_value = | |
221 ngx_http_variable("1"); | |
222 | |
223 | |
499 | 224 ngx_http_variable_t * |
509 | 225 ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags) |
226 { | |
611 | 227 ngx_int_t rc; |
509 | 228 ngx_uint_t i; |
611 | 229 ngx_hash_key_t *key; |
509 | 230 ngx_http_variable_t *v; |
231 ngx_http_core_main_conf_t *cmcf; | |
232 | |
233 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
234 | |
611 | 235 key = cmcf->variables_keys->keys.elts; |
236 for (i = 0; i < cmcf->variables_keys->keys.nelts; i++) { | |
237 if (name->len != key[i].key.len | |
238 || ngx_strncasecmp(name->data, key[i].key.data, name->len) != 0) | |
509 | 239 { |
240 continue; | |
241 } | |
242 | |
611 | 243 v = key[i].value; |
244 | |
245 if (!(v->flags & NGX_HTTP_VAR_CHANGABLE)) { | |
509 | 246 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
247 "the duplicate \"%V\" variable", name); | |
248 return NULL; | |
249 } | |
250 | |
611 | 251 return v; |
509 | 252 } |
253 | |
611 | 254 v = ngx_palloc(cf->pool, sizeof(ngx_http_variable_t)); |
509 | 255 if (v == NULL) { |
256 return NULL; | |
257 } | |
258 | |
259 v->name.len = name->len; | |
260 v->name.data = ngx_palloc(cf->pool, name->len); | |
261 if (v->name.data == NULL) { | |
262 return NULL; | |
263 } | |
264 | |
265 for (i = 0; i < name->len; i++) { | |
266 v->name.data[i] = ngx_tolower(name->data[i]); | |
267 } | |
268 | |
637 | 269 v->set_handler = NULL; |
270 v->get_handler = NULL; | |
509 | 271 v->data = 0; |
272 v->flags = flags; | |
533 | 273 v->index = 0; |
509 | 274 |
611 | 275 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, 0); |
276 | |
277 if (rc == NGX_ERROR) { | |
278 return NULL; | |
279 } | |
280 | |
281 if (rc == NGX_BUSY) { | |
282 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
283 "conflicting variable name \"%V\"", name); | |
284 return NULL; | |
285 } | |
286 | |
509 | 287 return v; |
288 } | |
289 | |
290 | |
291 ngx_int_t | |
292 ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name) | |
499 | 293 { |
501 | 294 ngx_uint_t i; |
295 ngx_http_variable_t *v; | |
499 | 296 ngx_http_core_main_conf_t *cmcf; |
297 | |
298 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
299 | |
501 | 300 v = cmcf->variables.elts; |
301 | |
302 if (v == NULL) { | |
499 | 303 if (ngx_array_init(&cmcf->variables, cf->pool, 4, |
304 sizeof(ngx_http_variable_t)) == NGX_ERROR) | |
305 { | |
509 | 306 return NGX_ERROR; |
499 | 307 } |
501 | 308 |
309 } else { | |
310 for (i = 0; i < cmcf->variables.nelts; i++) { | |
311 if (name->len != v[i].name.len | |
312 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0) | |
313 { | |
314 continue; | |
315 } | |
316 | |
509 | 317 return i; |
501 | 318 } |
499 | 319 } |
320 | |
501 | 321 v = ngx_array_push(&cmcf->variables); |
322 if (v == NULL) { | |
509 | 323 return NGX_ERROR; |
499 | 324 } |
325 | |
501 | 326 v->name.len = name->len; |
327 v->name.data = ngx_palloc(cf->pool, name->len); | |
328 if (v->name.data == NULL) { | |
509 | 329 return NGX_ERROR; |
501 | 330 } |
499 | 331 |
501 | 332 for (i = 0; i < name->len; i++) { |
509 | 333 v->name.data[i] = ngx_tolower(name->data[i]); |
501 | 334 } |
335 | |
637 | 336 v->set_handler = NULL; |
337 v->get_handler = NULL; | |
501 | 338 v->data = 0; |
509 | 339 v->flags = 0; |
533 | 340 v->index = cmcf->variables.nelts - 1; |
501 | 341 |
509 | 342 return cmcf->variables.nelts - 1; |
499 | 343 } |
344 | |
345 | |
346 ngx_http_variable_value_t * | |
347 ngx_http_get_indexed_variable(ngx_http_request_t *r, ngx_uint_t index) | |
348 { | |
501 | 349 ngx_http_variable_t *v; |
499 | 350 ngx_http_core_main_conf_t *cmcf; |
351 | |
352 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
353 | |
553 | 354 if (cmcf->variables.nelts <= index) { |
499 | 355 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
356 "unknown variable index: %d", index); | |
357 return NULL; | |
358 } | |
359 | |
573 | 360 if (r->variables[index].not_found || r->variables[index].valid) { |
361 return &r->variables[index]; | |
501 | 362 } |
499 | 363 |
501 | 364 v = cmcf->variables.elts; |
499 | 365 |
637 | 366 if (v[index].get_handler(r, &r->variables[index], v[index].data) |
367 == NGX_OK) | |
368 { | |
573 | 369 if (v[index].flags & NGX_HTTP_VAR_NOCACHABLE) { |
370 r->variables[index].no_cachable = 1; | |
499 | 371 } |
573 | 372 |
373 return &r->variables[index]; | |
499 | 374 } |
375 | |
657 | 376 r->variables[index].valid = 0; |
377 r->variables[index].not_found = 1; | |
378 | |
798 | 379 return NULL; |
573 | 380 } |
381 | |
382 | |
383 ngx_http_variable_value_t * | |
384 ngx_http_get_flushed_variable(ngx_http_request_t *r, ngx_uint_t index) | |
385 { | |
1150 | 386 ngx_http_variable_value_t *v; |
573 | 387 |
388 v = &r->variables[index]; | |
389 | |
390 if (v->valid) { | |
391 if (!v->no_cachable) { | |
392 return v; | |
393 } | |
394 | |
395 v->valid = 0; | |
396 v->not_found = 0; | |
509 | 397 } |
501 | 398 |
573 | 399 return ngx_http_get_indexed_variable(r, index); |
499 | 400 } |
401 | |
402 | |
403 ngx_http_variable_value_t * | |
635 | 404 ngx_http_get_variable(ngx_http_request_t *r, ngx_str_t *name, ngx_uint_t key, |
405 ngx_uint_t nowarn) | |
499 | 406 { |
501 | 407 ngx_http_variable_t *v; |
573 | 408 ngx_http_variable_value_t *vv; |
499 | 409 ngx_http_core_main_conf_t *cmcf; |
410 | |
411 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
412 | |
611 | 413 v = ngx_hash_find(&cmcf->variables_hash, key, name->data, name->len); |
499 | 414 |
611 | 415 if (v) { |
416 if (v->flags & NGX_HTTP_VAR_INDEXED) { | |
417 return ngx_http_get_indexed_variable(r, v->index); | |
519 | 418 |
419 } else { | |
499 | 420 |
573 | 421 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t)); |
501 | 422 |
637 | 423 if (vv && v->get_handler(r, vv, v->data) == NGX_OK) { |
573 | 424 return vv; |
425 } | |
509 | 426 |
573 | 427 return NULL; |
428 } | |
509 | 429 } |
430 | |
431 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t)); | |
432 if (vv == NULL) { | |
433 return NULL; | |
434 } | |
435 | |
573 | 436 if (ngx_strncmp(name->data, "http_", 5) == 0) { |
499 | 437 |
577 | 438 if (ngx_http_variable_unknown_header_in(r, vv, (uintptr_t) name) |
439 == NGX_OK) | |
440 { | |
441 return vv; | |
442 } | |
443 | |
444 return NULL; | |
445 } | |
446 | |
447 if (ngx_strncmp(name->data, "sent_http_", 10) == 0) { | |
448 | |
449 if (ngx_http_variable_unknown_header_out(r, vv, (uintptr_t) name) | |
450 == NGX_OK) | |
573 | 451 { |
452 return vv; | |
453 } | |
499 | 454 |
455 return NULL; | |
456 } | |
457 | |
1162 | 458 if (ngx_strncmp(name->data, "upstream_http_", 10) == 0) { |
459 | |
460 if (ngx_http_upstream_header_variable(r, vv, (uintptr_t) name) | |
461 == NGX_OK) | |
462 { | |
463 return vv; | |
464 } | |
465 | |
466 return NULL; | |
467 } | |
468 | |
635 | 469 vv->not_found = 1; |
573 | 470 |
635 | 471 if (nowarn == 0) { |
472 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
473 "unknown \"%V\" variable", name); | |
474 } | |
499 | 475 |
501 | 476 return vv; |
499 | 477 } |
478 | |
479 | |
573 | 480 static ngx_int_t |
481 ngx_http_variable_request(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
482 uintptr_t data) | |
483 { | |
484 ngx_str_t *s; | |
485 | |
486 s = (ngx_str_t *) ((char *) r + data); | |
487 | |
488 if (s->data) { | |
489 v->len = s->len; | |
490 v->valid = 1; | |
491 v->no_cachable = 0; | |
492 v->not_found = 0; | |
493 v->data = s->data; | |
494 | |
495 } else { | |
496 v->not_found = 1; | |
497 } | |
498 | |
499 return NGX_OK; | |
500 } | |
501 | |
502 | |
637 | 503 static void |
504 ngx_http_variable_request_set_size(ngx_http_request_t *r, | |
505 ngx_http_variable_value_t *v, uintptr_t data) | |
506 { | |
507 ssize_t s, *sp; | |
508 ngx_str_t val; | |
509 | |
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510 val.len = v->len; |
637 | 511 val.data = v->data; |
512 | |
513 s = ngx_parse_size(&val); | |
514 | |
515 if (s == NGX_ERROR) { | |
516 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
517 "invalid size \"%V\"", &val); | |
518 return; | |
519 } | |
520 | |
521 sp = (ssize_t *) ((char *) r + data); | |
522 | |
523 *sp = s; | |
524 | |
525 return; | |
526 } | |
527 | |
528 | |
573 | 529 static ngx_int_t |
530 ngx_http_variable_header(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
531 uintptr_t data) | |
515 | 532 { |
573 | 533 ngx_table_elt_t *h; |
534 | |
535 h = *(ngx_table_elt_t **) ((char *) r + data); | |
536 | |
537 if (h) { | |
538 v->len = h->value.len; | |
539 v->valid = 1; | |
540 v->no_cachable = 0; | |
541 v->not_found = 0; | |
542 v->data = h->value.data; | |
543 | |
544 } else { | |
545 v->not_found = 1; | |
546 } | |
547 | |
548 return NGX_OK; | |
549 } | |
550 | |
551 | |
552 static ngx_int_t | |
553 ngx_http_variable_headers(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
554 uintptr_t data) | |
555 { | |
667 | 556 ssize_t len; |
573 | 557 u_char *p; |
667 | 558 ngx_uint_t i, n; |
573 | 559 ngx_array_t *a; |
560 ngx_table_elt_t **h; | |
515 | 561 |
562 a = (ngx_array_t *) ((char *) r + data); | |
563 | |
667 | 564 n = a->nelts; |
565 | |
566 if (n == 0) { | |
573 | 567 v->not_found = 1; |
568 return NGX_OK; | |
515 | 569 } |
570 | |
573 | 571 v->valid = 1; |
572 v->no_cachable = 0; | |
573 v->not_found = 0; | |
515 | 574 |
575 h = a->elts; | |
576 | |
667 | 577 if (n == 1) { |
573 | 578 v->len = (*h)->value.len; |
579 v->data = (*h)->value.data; | |
515 | 580 |
573 | 581 return NGX_OK; |
515 | 582 } |
583 | |
667 | 584 len = - (ssize_t) (sizeof("; ") - 1); |
573 | 585 |
667 | 586 for (i = 0; i < n; i++) { |
573 | 587 len += h[i]->value.len + sizeof("; ") - 1; |
515 | 588 } |
589 | |
573 | 590 p = ngx_palloc(r->pool, len); |
591 if (p == NULL) { | |
592 return NGX_ERROR; | |
593 } | |
594 | |
595 v->len = len; | |
596 v->data = p; | |
515 | 597 |
598 for (i = 0; /* void */ ; i++) { | |
573 | 599 p = ngx_copy(p, h[i]->value.data, h[i]->value.len); |
515 | 600 |
667 | 601 if (i == n - 1) { |
515 | 602 break; |
603 } | |
604 | |
605 *p++ = ';'; *p++ = ' '; | |
606 } | |
607 | |
573 | 608 return NGX_OK; |
515 | 609 } |
610 | |
611 | |
573 | 612 static ngx_int_t |
577 | 613 ngx_http_variable_unknown_header_in(ngx_http_request_t *r, |
614 ngx_http_variable_value_t *v, uintptr_t data) | |
615 { | |
616 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, | |
617 &r->headers_in.headers.part, | |
618 sizeof("http_") - 1); | |
619 } | |
620 | |
621 | |
622 static ngx_int_t | |
623 ngx_http_variable_unknown_header_out(ngx_http_request_t *r, | |
573 | 624 ngx_http_variable_value_t *v, uintptr_t data) |
499 | 625 { |
577 | 626 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, |
627 &r->headers_out.headers.part, | |
628 sizeof("sent_http_") - 1); | |
629 } | |
501 | 630 |
577 | 631 |
1162 | 632 ngx_int_t |
577 | 633 ngx_http_variable_unknown_header(ngx_http_variable_value_t *v, ngx_str_t *var, |
634 ngx_list_part_t *part, size_t prefix) | |
635 { | |
573 | 636 u_char ch; |
637 ngx_uint_t i, n; | |
638 ngx_table_elt_t *header; | |
499 | 639 |
640 header = part->elts; | |
641 | |
642 for (i = 0; /* void */ ; i++) { | |
643 | |
644 if (i >= part->nelts) { | |
645 if (part->next == NULL) { | |
646 break; | |
647 } | |
648 | |
649 part = part->next; | |
650 header = part->elts; | |
651 i = 0; | |
652 } | |
653 | |
577 | 654 for (n = 0; n + prefix < var->len && n < header[i].key.len; n++) { |
499 | 655 ch = header[i].key.data[n]; |
656 | |
509 | 657 if (ch >= 'A' && ch <= 'Z') { |
658 ch |= 0x20; | |
499 | 659 |
660 } else if (ch == '-') { | |
661 ch = '_'; | |
662 } | |
663 | |
577 | 664 if (var->data[n + prefix] != ch) { |
499 | 665 break; |
666 } | |
667 } | |
668 | |
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669 if (n + prefix == var->len && n == header[i].key.len) { |
573 | 670 v->len = header[i].value.len; |
671 v->valid = 1; | |
672 v->no_cachable = 0; | |
673 v->not_found = 0; | |
674 v->data = header[i].value.data; | |
499 | 675 |
573 | 676 return NGX_OK; |
499 | 677 } |
678 } | |
679 | |
573 | 680 v->not_found = 1; |
681 | |
682 return NGX_OK; | |
509 | 683 } |
684 | |
685 | |
573 | 686 static ngx_int_t |
687 ngx_http_variable_host(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
688 uintptr_t data) | |
509 | 689 { |
864 | 690 if (r->host_start == NULL) { |
691 | |
692 if (r->headers_in.host) { | |
693 v->len = r->headers_in.host_name_len; | |
694 v->data = r->headers_in.host->value.data; | |
695 | |
696 } else { | |
697 v->len = r->server_name.len; | |
698 v->data = r->server_name.data; | |
699 } | |
509 | 700 |
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701 } else if (r->host_end) { |
864 | 702 v->len = r->host_end - r->host_start; |
703 v->data = r->host_start; | |
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704 |
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705 } else { |
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706 v->not_found = 1; |
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707 return NGX_OK; |
509 | 708 } |
709 | |
573 | 710 v->valid = 1; |
711 v->no_cachable = 0; | |
712 v->not_found = 0; | |
509 | 713 |
573 | 714 return NGX_OK; |
499 | 715 } |
716 | |
717 | |
573 | 718 static ngx_int_t |
983
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719 ngx_http_variable_binary_remote_addr(ngx_http_request_t *r, |
573 | 720 ngx_http_variable_value_t *v, uintptr_t data) |
499 | 721 { |
982 | 722 struct sockaddr_in *sin; |
723 | |
983
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724 /* AF_INET only */ |
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725 |
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726 sin = (struct sockaddr_in *) r->connection->sockaddr; |
982 | 727 |
983
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728 v->len = sizeof(in_addr_t); |
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729 v->valid = 1; |
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730 v->no_cachable = 0; |
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731 v->not_found = 0; |
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732 v->data = (u_char *) &sin->sin_addr.s_addr; |
982 | 733 |
983
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734 return NGX_OK; |
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735 } |
982 | 736 |
737 | |
983
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738 static ngx_int_t |
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739 ngx_http_variable_remote_addr(ngx_http_request_t *r, |
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740 ngx_http_variable_value_t *v, uintptr_t data) |
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741 { |
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742 v->len = r->connection->addr_text.len; |
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743 v->valid = 1; |
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744 v->no_cachable = 0; |
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745 v->not_found = 0; |
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746 v->data = r->connection->addr_text.data; |
499 | 747 |
573 | 748 return NGX_OK; |
499 | 749 } |
750 | |
751 | |
573 | 752 static ngx_int_t |
753 ngx_http_variable_remote_port(ngx_http_request_t *r, | |
754 ngx_http_variable_value_t *v, uintptr_t data) | |
499 | 755 { |
573 | 756 ngx_uint_t port; |
757 struct sockaddr_in *sin; | |
509 | 758 |
573 | 759 v->len = 0; |
760 v->valid = 1; | |
761 v->no_cachable = 0; | |
762 v->not_found = 0; | |
509 | 763 |
573 | 764 v->data = ngx_palloc(r->pool, sizeof("65535") - 1); |
765 if (v->data == NULL) { | |
766 return NGX_ERROR; | |
509 | 767 } |
768 | |
769 /* AF_INET only */ | |
577 | 770 |
509 | 771 if (r->connection->sockaddr->sa_family == AF_INET) { |
772 sin = (struct sockaddr_in *) r->connection->sockaddr; | |
577 | 773 |
509 | 774 port = ntohs(sin->sin_port); |
577 | 775 |
509 | 776 if (port > 0 && port < 65536) { |
573 | 777 v->len = ngx_sprintf(v->data, "%ui", port) - v->data; |
509 | 778 } |
779 } | |
780 | |
573 | 781 return NGX_OK; |
509 | 782 } |
783 | |
784 | |
573 | 785 static ngx_int_t |
786 ngx_http_variable_server_addr(ngx_http_request_t *r, | |
787 ngx_http_variable_value_t *v, uintptr_t data) | |
509 | 788 { |
573 | 789 socklen_t len; |
790 ngx_connection_t *c; | |
791 struct sockaddr_in sin; | |
499 | 792 |
573 | 793 v->data = ngx_palloc(r->pool, INET_ADDRSTRLEN); |
794 if (v->data == NULL) { | |
795 return NGX_ERROR; | |
509 | 796 } |
797 | |
798 c = r->connection; | |
799 | |
800 if (r->in_addr == 0) { | |
801 len = sizeof(struct sockaddr_in); | |
802 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) { | |
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803 ngx_connection_error(c, ngx_socket_errno, "getsockname() failed"); |
573 | 804 return NGX_ERROR; |
509 | 805 } |
806 | |
807 r->in_addr = sin.sin_addr.s_addr; | |
808 } | |
809 | |
573 | 810 v->len = ngx_inet_ntop(c->listening->family, &r->in_addr, |
811 v->data, INET_ADDRSTRLEN); | |
812 v->valid = 1; | |
813 v->no_cachable = 0; | |
814 v->not_found = 0; | |
499 | 815 |
573 | 816 return NGX_OK; |
499 | 817 } |
818 | |
819 | |
573 | 820 static ngx_int_t |
821 ngx_http_variable_server_port(ngx_http_request_t *r, | |
822 ngx_http_variable_value_t *v, uintptr_t data) | |
509 | 823 { |
573 | 824 v->len = r->port_text->len - 1; |
825 v->valid = 1; | |
826 v->no_cachable = 0; | |
827 v->not_found = 0; | |
828 v->data = r->port_text->data + 1; | |
509 | 829 |
573 | 830 return NGX_OK; |
509 | 831 } |
832 | |
833 | |
573 | 834 static ngx_int_t |
731 | 835 ngx_http_variable_scheme(ngx_http_request_t *r, |
836 ngx_http_variable_value_t *v, uintptr_t data) | |
837 { | |
838 #if (NGX_HTTP_SSL) | |
839 | |
840 if (r->connection->ssl) { | |
841 v->len = sizeof("https") - 1; | |
842 v->valid = 1; | |
843 v->no_cachable = 0; | |
844 v->not_found = 0; | |
732 | 845 v->data = (u_char *) "https"; |
731 | 846 |
847 return NGX_OK; | |
848 } | |
849 | |
850 #endif | |
851 | |
852 v->len = sizeof("http") - 1; | |
853 v->valid = 1; | |
854 v->no_cachable = 0; | |
855 v->not_found = 0; | |
732 | 856 v->data = (u_char *) "http"; |
731 | 857 |
858 return NGX_OK; | |
859 } | |
860 | |
861 | |
862 static ngx_int_t | |
573 | 863 ngx_http_variable_document_root(ngx_http_request_t *r, |
864 ngx_http_variable_value_t *v, uintptr_t data) | |
499 | 865 { |
671 | 866 ngx_str_t path; |
573 | 867 ngx_http_core_loc_conf_t *clcf; |
509 | 868 |
869 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
870 | |
671 | 871 if (clcf->root_lengths == NULL) { |
872 v->len = clcf->root.len; | |
873 v->valid = 1; | |
874 v->no_cachable = 0; | |
875 v->not_found = 0; | |
876 v->data = clcf->root.data; | |
877 | |
878 } else { | |
879 if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 0, | |
880 clcf->root_values->elts) | |
881 == NULL) | |
882 { | |
883 return NGX_ERROR; | |
884 } | |
885 | |
886 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path) == NGX_ERROR) { | |
887 return NGX_ERROR; | |
888 } | |
889 | |
890 v->len = path.len; | |
891 v->valid = 1; | |
892 v->no_cachable = 0; | |
893 v->not_found = 0; | |
894 v->data = path.data; | |
895 } | |
509 | 896 |
573 | 897 return NGX_OK; |
509 | 898 } |
899 | |
900 | |
573 | 901 static ngx_int_t |
902 ngx_http_variable_request_filename(ngx_http_request_t *r, | |
903 ngx_http_variable_value_t *v, uintptr_t data) | |
509 | 904 { |
773 | 905 size_t root; |
573 | 906 ngx_str_t path; |
499 | 907 |
773 | 908 if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) { |
573 | 909 return NGX_ERROR; |
557 | 910 } |
509 | 911 |
557 | 912 /* ngx_http_map_uri_to_path() allocates memory for terminating '\0' */ |
509 | 913 |
573 | 914 v->len = path.len - 1; |
915 v->valid = 1; | |
916 v->no_cachable = 0; | |
917 v->not_found = 0; | |
918 v->data = path.data; | |
499 | 919 |
573 | 920 return NGX_OK; |
499 | 921 } |
922 | |
923 | |
573 | 924 static ngx_int_t |
925 ngx_http_variable_request_method(ngx_http_request_t *r, | |
926 ngx_http_variable_value_t *v, uintptr_t data) | |
561 | 927 { |
647 | 928 if (r->main->method_name.data) { |
929 v->len = r->main->method_name.len; | |
573 | 930 v->valid = 1; |
931 v->no_cachable = 0; | |
932 v->not_found = 0; | |
647 | 933 v->data = r->main->method_name.data; |
573 | 934 |
935 } else { | |
936 v->not_found = 1; | |
561 | 937 } |
938 | |
573 | 939 return NGX_OK; |
561 | 940 } |
941 | |
942 | |
573 | 943 static ngx_int_t |
944 ngx_http_variable_remote_user(ngx_http_request_t *r, | |
945 ngx_http_variable_value_t *v, uintptr_t data) | |
539 | 946 { |
573 | 947 ngx_int_t rc; |
539 | 948 |
949 rc = ngx_http_auth_basic_user(r); | |
950 | |
951 if (rc == NGX_DECLINED) { | |
573 | 952 v->not_found = 1; |
953 return NGX_OK; | |
539 | 954 } |
955 | |
956 if (rc == NGX_ERROR) { | |
573 | 957 return NGX_ERROR; |
539 | 958 } |
959 | |
573 | 960 v->len = r->headers_in.user.len; |
961 v->valid = 1; | |
962 v->no_cachable = 0; | |
963 v->not_found = 0; | |
964 v->data = r->headers_in.user.data; | |
571 | 965 |
573 | 966 return NGX_OK; |
571 | 967 } |
968 | |
969 | |
611 | 970 static ngx_int_t |
971 ngx_http_variable_body_bytes_sent(ngx_http_request_t *r, | |
972 ngx_http_variable_value_t *v, uintptr_t data) | |
973 { | |
974 off_t sent; | |
975 u_char *p; | |
976 | |
977 sent = r->connection->sent - r->header_size; | |
978 | |
979 if (sent < 0) { | |
980 sent = 0; | |
981 } | |
982 | |
983 p = ngx_palloc(r->pool, NGX_OFF_T_LEN); | |
984 if (p == NULL) { | |
985 return NGX_ERROR; | |
986 } | |
987 | |
988 v->len = ngx_sprintf(p, "%O", sent) - p; | |
989 v->valid = 1; | |
990 v->no_cachable = 0; | |
991 v->not_found = 0; | |
992 v->data = p; | |
993 | |
994 return NGX_OK; | |
995 } | |
996 | |
997 | |
629 | 998 static ngx_int_t |
641 | 999 ngx_http_variable_sent_content_type(ngx_http_request_t *r, |
1000 ngx_http_variable_value_t *v, uintptr_t data) | |
1001 { | |
1002 if (r->headers_out.content_type.len) { | |
1003 v->len = r->headers_out.content_type.len; | |
1004 v->valid = 1; | |
1005 v->no_cachable = 0; | |
1006 v->not_found = 0; | |
1007 v->data = r->headers_out.content_type.data; | |
1008 | |
1009 } else { | |
1010 v->not_found = 1; | |
1011 } | |
1012 | |
1013 return NGX_OK; | |
1014 } | |
1015 | |
1016 | |
1017 static ngx_int_t | |
1018 ngx_http_variable_sent_content_length(ngx_http_request_t *r, | |
1019 ngx_http_variable_value_t *v, uintptr_t data) | |
1020 { | |
1021 u_char *p; | |
1022 | |
1023 if (r->headers_out.content_length) { | |
1024 v->len = r->headers_out.content_length->value.len; | |
1025 v->valid = 1; | |
1026 v->no_cachable = 0; | |
1027 v->not_found = 0; | |
1028 v->data = r->headers_out.content_length->value.data; | |
1029 | |
1030 return NGX_OK; | |
1031 } | |
1032 | |
1033 if (r->headers_out.content_length_n >= 0) { | |
1034 p = ngx_palloc(r->pool, NGX_OFF_T_LEN); | |
1035 if (p == NULL) { | |
1036 return NGX_ERROR; | |
1037 } | |
1038 | |
1039 v->len = ngx_sprintf(p, "%O", r->headers_out.content_length_n) - p; | |
1040 v->valid = 1; | |
1041 v->no_cachable = 0; | |
1042 v->not_found = 0; | |
1043 v->data = p; | |
1044 | |
1045 return NGX_OK; | |
1046 } | |
1047 | |
1048 v->not_found = 1; | |
1049 | |
1050 return NGX_OK; | |
1051 } | |
1052 | |
1053 | |
1054 static ngx_int_t | |
1055 ngx_http_variable_sent_last_modified(ngx_http_request_t *r, | |
1056 ngx_http_variable_value_t *v, uintptr_t data) | |
1057 { | |
1058 u_char *p; | |
1059 | |
1060 if (r->headers_out.last_modified) { | |
1061 v->len = r->headers_out.last_modified->value.len; | |
1062 v->valid = 1; | |
1063 v->no_cachable = 0; | |
1064 v->not_found = 0; | |
1065 v->data = r->headers_out.last_modified->value.data; | |
1066 | |
1067 return NGX_OK; | |
1068 } | |
1069 | |
1070 if (r->headers_out.last_modified_time >= 0) { | |
1071 p = ngx_palloc(r->pool, | |
1072 sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT") - 1); | |
1073 if (p == NULL) { | |
1074 return NGX_ERROR; | |
1075 } | |
1076 | |
1077 v->len = ngx_http_time(p, r->headers_out.last_modified_time) - p; | |
1078 v->valid = 1; | |
1079 v->no_cachable = 0; | |
1080 v->not_found = 0; | |
1081 v->data = p; | |
1082 | |
1083 return NGX_OK; | |
1084 } | |
1085 | |
1086 v->not_found = 1; | |
1087 | |
1088 return NGX_OK; | |
1089 } | |
1090 | |
1091 | |
1092 static ngx_int_t | |
1093 ngx_http_variable_sent_connection(ngx_http_request_t *r, | |
1094 ngx_http_variable_value_t *v, uintptr_t data) | |
1095 { | |
1096 size_t len; | |
1097 char *p; | |
1098 | |
1099 if (r->keepalive) { | |
1100 len = sizeof("keep-alive") - 1; | |
1101 p = "keep-alive"; | |
1102 | |
1103 } else { | |
1104 len = sizeof("close") - 1; | |
1105 p = "close"; | |
1106 } | |
1107 | |
1108 v->len = len; | |
1109 v->valid = 1; | |
1110 v->no_cachable = 0; | |
1111 v->not_found = 0; | |
1112 v->data = (u_char *) p; | |
1113 | |
1114 return NGX_OK; | |
1115 } | |
1116 | |
1117 | |
1118 static ngx_int_t | |
1119 ngx_http_variable_sent_keep_alive(ngx_http_request_t *r, | |
1120 ngx_http_variable_value_t *v, uintptr_t data) | |
1121 { | |
1122 u_char *p; | |
1123 ngx_http_core_loc_conf_t *clcf; | |
1124 | |
1125 if (r->keepalive) { | |
1126 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
1127 | |
1128 if (clcf->keepalive_header) { | |
1129 | |
1130 p = ngx_palloc(r->pool, sizeof("timeout=") - 1 + NGX_TIME_T_LEN); | |
1131 if (p == NULL) { | |
1132 return NGX_ERROR; | |
1133 } | |
1134 | |
1135 v->len = ngx_sprintf(p, "timeout=%T", clcf->keepalive_header) - p; | |
1136 v->valid = 1; | |
1137 v->no_cachable = 0; | |
1138 v->not_found = 0; | |
1139 v->data = p; | |
1140 | |
1141 return NGX_OK; | |
1142 } | |
1143 } | |
1144 | |
1145 v->not_found = 1; | |
1146 | |
1147 return NGX_OK; | |
1148 } | |
1149 | |
1150 | |
1151 static ngx_int_t | |
1152 ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r, | |
1153 ngx_http_variable_value_t *v, uintptr_t data) | |
1154 { | |
1155 if (r->chunked) { | |
1156 v->len = sizeof("chunked") - 1; | |
1157 v->valid = 1; | |
1158 v->no_cachable = 0; | |
1159 v->not_found = 0; | |
1160 v->data = (u_char *) "chunked"; | |
1161 | |
1162 } else { | |
1163 v->not_found = 1; | |
1164 } | |
1165 | |
1166 return NGX_OK; | |
1167 } | |
1168 | |
1169 | |
1170 static ngx_int_t | |
629 | 1171 ngx_http_variable_request_completion(ngx_http_request_t *r, |
1172 ngx_http_variable_value_t *v, uintptr_t data) | |
1173 { | |
1174 if (r->request_complete) { | |
1175 v->len = 2; | |
1176 v->valid = 1; | |
1177 v->no_cachable = 0; | |
1178 v->not_found = 0; | |
1179 v->data = (u_char *) "OK"; | |
1180 | |
1181 return NGX_OK; | |
1182 } | |
1183 | |
1184 v->len = 0; | |
1185 v->valid = 1; | |
1186 v->no_cachable = 0; | |
1187 v->not_found = 0; | |
1188 v->data = (u_char *) ""; | |
1189 | |
1190 return NGX_OK; | |
1191 } | |
1192 | |
1193 | |
759 | 1194 static ngx_int_t |
1195 ngx_http_variable_request_body_file(ngx_http_request_t *r, | |
1196 ngx_http_variable_value_t *v, uintptr_t data) | |
1197 { | |
1198 if (r->request_body == NULL || r->request_body->temp_file == NULL) { | |
763
0b0f3d4854c0
variable should not be found if no request body file
Igor Sysoev <igor@sysoev.ru>
parents:
759
diff
changeset
|
1199 v->not_found = 1; |
759 | 1200 |
1201 return NGX_OK; | |
1202 } | |
1203 | |
1204 v->len = r->request_body->temp_file->file.name.len; | |
1205 v->valid = 1; | |
1206 v->no_cachable = 0; | |
1207 v->not_found = 0; | |
1208 v->data = r->request_body->temp_file->file.name.data; | |
1209 | |
1210 return NGX_OK; | |
1211 } | |
1212 | |
1213 | |
1331 | 1214 static ngx_int_t |
1215 ngx_http_variable_nginx_version(ngx_http_request_t *r, | |
1216 ngx_http_variable_value_t *v, uintptr_t data) | |
1217 { | |
1218 v->len = sizeof(NGINX_VERSION) - 1; | |
1219 v->valid = 1; | |
1220 v->no_cachable = 0; | |
1221 v->not_found = 0; | |
1222 v->data = (u_char *) NGINX_VERSION; | |
1223 | |
1224 return NGX_OK; | |
1225 } | |
1226 | |
1227 | |
499 | 1228 ngx_int_t |
509 | 1229 ngx_http_variables_add_core_vars(ngx_conf_t *cf) |
499 | 1230 { |
611 | 1231 ngx_int_t rc; |
1232 ngx_http_variable_t *v; | |
501 | 1233 ngx_http_core_main_conf_t *cmcf; |
499 | 1234 |
509 | 1235 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); |
1236 | |
611 | 1237 cmcf->variables_keys = ngx_pcalloc(cf->temp_pool, |
1238 sizeof(ngx_hash_keys_arrays_t)); | |
1239 if (cmcf->variables_keys == NULL) { | |
1240 return NGX_ERROR; | |
1241 } | |
1242 | |
1243 cmcf->variables_keys->pool = cf->pool; | |
1244 cmcf->variables_keys->temp_pool = cf->pool; | |
1245 | |
1246 if (ngx_hash_keys_array_init(cmcf->variables_keys, NGX_HASH_SMALL) | |
1247 != NGX_OK) | |
509 | 1248 { |
499 | 1249 return NGX_ERROR; |
1250 } | |
1251 | |
611 | 1252 for (v = ngx_http_core_variables; v->name.len; v++) { |
1253 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, | |
1254 NGX_HASH_READONLY_KEY); | |
1255 | |
1256 if (rc == NGX_OK) { | |
1257 continue; | |
499 | 1258 } |
1259 | |
611 | 1260 if (rc == NGX_BUSY) { |
1261 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1262 "conflicting variable name \"%V\"", &v->name); | |
1263 } | |
1264 | |
1265 return NGX_ERROR; | |
499 | 1266 } |
1267 | |
1268 return NGX_OK; | |
1269 } | |
509 | 1270 |
1271 | |
1272 ngx_int_t | |
1273 ngx_http_variables_init_vars(ngx_conf_t *cf) | |
1274 { | |
1275 ngx_uint_t i, n; | |
611 | 1276 ngx_hash_key_t *key; |
1277 ngx_hash_init_t hash; | |
509 | 1278 ngx_http_variable_t *v, *av; |
1279 ngx_http_core_main_conf_t *cmcf; | |
1280 | |
1281 /* set the handlers for the indexed http variables */ | |
1282 | |
1283 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
1284 | |
1285 v = cmcf->variables.elts; | |
611 | 1286 key = cmcf->variables_keys->keys.elts; |
509 | 1287 |
1288 for (i = 0; i < cmcf->variables.nelts; i++) { | |
1289 | |
611 | 1290 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) { |
509 | 1291 |
1191
0eb2dc4fdea8
fix segfault introduced in r1190
Igor Sysoev <igor@sysoev.ru>
parents:
1173
diff
changeset
|
1292 av = key[n].value; |
0eb2dc4fdea8
fix segfault introduced in r1190
Igor Sysoev <igor@sysoev.ru>
parents:
1173
diff
changeset
|
1293 |
0eb2dc4fdea8
fix segfault introduced in r1190
Igor Sysoev <igor@sysoev.ru>
parents:
1173
diff
changeset
|
1294 if (av->get_handler |
0eb2dc4fdea8
fix segfault introduced in r1190
Igor Sysoev <igor@sysoev.ru>
parents:
1173
diff
changeset
|
1295 && v[i].name.len == key[n].key.len |
611 | 1296 && ngx_strncmp(v[i].name.data, key[n].key.data, v[i].name.len) |
509 | 1297 == 0) |
1298 { | |
637 | 1299 v[i].get_handler = av->get_handler; |
611 | 1300 v[i].data = av->data; |
527 | 1301 |
611 | 1302 av->flags |= NGX_HTTP_VAR_INDEXED; |
1303 v[i].flags = av->flags; | |
509 | 1304 |
611 | 1305 av->index = i; |
533 | 1306 |
509 | 1307 goto next; |
1308 } | |
1309 } | |
1310 | |
1311 if (ngx_strncmp(v[i].name.data, "http_", 5) == 0) { | |
637 | 1312 v[i].get_handler = ngx_http_variable_unknown_header_in; |
577 | 1313 v[i].data = (uintptr_t) &v[i].name; |
1314 | |
1315 continue; | |
1316 } | |
1317 | |
1318 if (ngx_strncmp(v[i].name.data, "sent_http_", 10) == 0) { | |
637 | 1319 v[i].get_handler = ngx_http_variable_unknown_header_out; |
509 | 1320 v[i].data = (uintptr_t) &v[i].name; |
1321 | |
1322 continue; | |
1323 } | |
1324 | |
1162 | 1325 if (ngx_strncmp(v[i].name.data, "upstream_http_", 14) == 0) { |
1326 v[i].get_handler = ngx_http_upstream_header_variable; | |
1327 v[i].data = (uintptr_t) &v[i].name; | |
1173
2a0b86713cc6
$upstream_http_... should be uncacheable
Igor Sysoev <igor@sysoev.ru>
parents:
1162
diff
changeset
|
1328 v[i].flags = NGX_HTTP_VAR_NOCACHABLE; |
1162 | 1329 |
1330 continue; | |
1331 } | |
1332 | |
509 | 1333 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, |
1334 "unknown \"%V\" variable", &v[i].name); | |
1335 | |
1336 return NGX_ERROR; | |
1337 | |
1338 next: | |
1339 continue; | |
1340 } | |
1341 | |
1342 | |
611 | 1343 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) { |
1344 av = key[n].value; | |
1345 | |
1346 if (av->flags & NGX_HTTP_VAR_NOHASH) { | |
1347 key[n].key.data = NULL; | |
583 | 1348 } |
1349 } | |
1350 | |
1351 | |
611 | 1352 hash.hash = &cmcf->variables_hash; |
1353 hash.key = ngx_hash_key; | |
1354 hash.max_size = cmcf->variables_hash_max_size; | |
1355 hash.bucket_size = cmcf->variables_hash_bucket_size; | |
1356 hash.name = "variables_hash"; | |
1357 hash.pool = cf->pool; | |
1358 hash.temp_pool = NULL; | |
509 | 1359 |
611 | 1360 if (ngx_hash_init(&hash, cmcf->variables_keys->keys.elts, |
1361 cmcf->variables_keys->keys.nelts) | |
581 | 1362 != NGX_OK) |
509 | 1363 { |
1364 return NGX_ERROR; | |
1365 } | |
1366 | |
611 | 1367 cmcf->variables_keys = NULL; |
509 | 1368 |
1369 return NGX_OK; | |
1370 } |