Mercurial > hg > nginx
annotate src/http/ngx_http_variables.c @ 2135:8c6521eedf84
ngx_strlow()
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Mon, 04 Aug 2008 10:07:00 +0000 |
parents | 2a92804f4109 |
children | 76d5af541412 |
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> | |
1329 | 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); | |
1350 | 16 static void ngx_http_variable_request_set(ngx_http_request_t *r, |
17 ngx_http_variable_value_t *v, uintptr_t data); | |
637 | 18 static void ngx_http_variable_request_set_size(ngx_http_request_t *r, |
19 ngx_http_variable_value_t *v, uintptr_t data); | |
573 | 20 static ngx_int_t ngx_http_variable_header(ngx_http_request_t *r, |
21 ngx_http_variable_value_t *v, uintptr_t data); | |
22 static ngx_int_t ngx_http_variable_headers(ngx_http_request_t *r, | |
23 ngx_http_variable_value_t *v, uintptr_t data); | |
577 | 24 |
25 static ngx_int_t ngx_http_variable_unknown_header_in(ngx_http_request_t *r, | |
573 | 26 ngx_http_variable_value_t *v, uintptr_t data); |
577 | 27 static ngx_int_t ngx_http_variable_unknown_header_out(ngx_http_request_t *r, |
28 ngx_http_variable_value_t *v, uintptr_t data); | |
29 | |
573 | 30 static ngx_int_t ngx_http_variable_host(ngx_http_request_t *r, |
31 ngx_http_variable_value_t *v, uintptr_t data); | |
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ngx_http_variable_binary_remote_addr()
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32 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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parents:
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changeset
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33 ngx_http_variable_value_t *v, uintptr_t data); |
573 | 34 static ngx_int_t ngx_http_variable_remote_addr(ngx_http_request_t *r, |
35 ngx_http_variable_value_t *v, uintptr_t data); | |
36 static ngx_int_t ngx_http_variable_remote_port(ngx_http_request_t *r, | |
37 ngx_http_variable_value_t *v, uintptr_t data); | |
38 static ngx_int_t ngx_http_variable_server_addr(ngx_http_request_t *r, | |
39 ngx_http_variable_value_t *v, uintptr_t data); | |
40 static ngx_int_t ngx_http_variable_server_port(ngx_http_request_t *r, | |
41 ngx_http_variable_value_t *v, uintptr_t data); | |
731 | 42 static ngx_int_t ngx_http_variable_scheme(ngx_http_request_t *r, |
43 ngx_http_variable_value_t *v, uintptr_t data); | |
1351 | 44 static ngx_int_t ngx_http_variable_is_args(ngx_http_request_t *r, |
45 ngx_http_variable_value_t *v, uintptr_t data); | |
573 | 46 static ngx_int_t ngx_http_variable_document_root(ngx_http_request_t *r, |
47 ngx_http_variable_value_t *v, uintptr_t data); | |
48 static ngx_int_t ngx_http_variable_request_filename(ngx_http_request_t *r, | |
49 ngx_http_variable_value_t *v, uintptr_t data); | |
1811 | 50 static ngx_int_t ngx_http_variable_server_name(ngx_http_request_t *r, |
51 ngx_http_variable_value_t *v, uintptr_t data); | |
573 | 52 static ngx_int_t ngx_http_variable_request_method(ngx_http_request_t *r, |
53 ngx_http_variable_value_t *v, uintptr_t data); | |
54 static ngx_int_t ngx_http_variable_remote_user(ngx_http_request_t *r, | |
55 ngx_http_variable_value_t *v, uintptr_t data); | |
611 | 56 static ngx_int_t ngx_http_variable_body_bytes_sent(ngx_http_request_t *r, |
57 ngx_http_variable_value_t *v, uintptr_t data); | |
629 | 58 static ngx_int_t ngx_http_variable_request_completion(ngx_http_request_t *r, |
59 ngx_http_variable_value_t *v, uintptr_t data); | |
759 | 60 static ngx_int_t ngx_http_variable_request_body_file(ngx_http_request_t *r, |
61 ngx_http_variable_value_t *v, uintptr_t data); | |
499 | 62 |
641 | 63 static ngx_int_t ngx_http_variable_sent_content_type(ngx_http_request_t *r, |
64 ngx_http_variable_value_t *v, uintptr_t data); | |
65 static ngx_int_t ngx_http_variable_sent_content_length(ngx_http_request_t *r, | |
66 ngx_http_variable_value_t *v, uintptr_t data); | |
67 static ngx_int_t ngx_http_variable_sent_last_modified(ngx_http_request_t *r, | |
68 ngx_http_variable_value_t *v, uintptr_t data); | |
69 static ngx_int_t ngx_http_variable_sent_connection(ngx_http_request_t *r, | |
70 ngx_http_variable_value_t *v, uintptr_t data); | |
71 static ngx_int_t ngx_http_variable_sent_keep_alive(ngx_http_request_t *r, | |
72 ngx_http_variable_value_t *v, uintptr_t data); | |
73 static ngx_int_t ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r, | |
74 ngx_http_variable_value_t *v, uintptr_t data); | |
75 | |
1329 | 76 static ngx_int_t ngx_http_variable_nginx_version(ngx_http_request_t *r, |
77 ngx_http_variable_value_t *v, uintptr_t data); | |
2011 | 78 static ngx_int_t ngx_http_variable_hostname(ngx_http_request_t *r, |
79 ngx_http_variable_value_t *v, uintptr_t data); | |
499 | 80 |
509 | 81 /* |
82 * TODO: | |
83 * Apache CGI: AUTH_TYPE, PATH_INFO (null), PATH_TRANSLATED | |
84 * REMOTE_HOST (null), REMOTE_IDENT (null), | |
85 * SERVER_SOFTWARE | |
86 * | |
571 | 87 * Apache SSI: DOCUMENT_NAME, LAST_MODIFIED, USER_NAME (file owner) |
509 | 88 */ |
499 | 89 |
641 | 90 /* |
91 * the $http_host, $http_user_agent, $http_referer, $http_via, | |
92 * and $http_x_forwarded_for variables may be handled by generic | |
93 * ngx_http_variable_unknown_header_in(), but for perfomance reasons | |
94 * they are handled using dedicated entries | |
95 */ | |
96 | |
509 | 97 static ngx_http_variable_t ngx_http_core_variables[] = { |
98 | |
637 | 99 { ngx_string("http_host"), NULL, ngx_http_variable_header, |
533 | 100 offsetof(ngx_http_request_t, headers_in.host), 0, 0 }, |
499 | 101 |
637 | 102 { ngx_string("http_user_agent"), NULL, ngx_http_variable_header, |
533 | 103 offsetof(ngx_http_request_t, headers_in.user_agent), 0, 0 }, |
509 | 104 |
637 | 105 { ngx_string("http_referer"), NULL, ngx_http_variable_header, |
533 | 106 offsetof(ngx_http_request_t, headers_in.referer), 0, 0 }, |
499 | 107 |
108 #if (NGX_HTTP_GZIP) | |
637 | 109 { ngx_string("http_via"), NULL, ngx_http_variable_header, |
533 | 110 offsetof(ngx_http_request_t, headers_in.via), 0, 0 }, |
499 | 111 #endif |
112 | |
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optimize $http_x_forwarded_for
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983
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113 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP) |
637 | 114 { ngx_string("http_x_forwarded_for"), NULL, ngx_http_variable_header, |
533 | 115 offsetof(ngx_http_request_t, headers_in.x_forwarded_for), 0, 0 }, |
499 | 116 #endif |
117 | |
637 | 118 { ngx_string("http_cookie"), NULL, ngx_http_variable_headers, |
533 | 119 offsetof(ngx_http_request_t, headers_in.cookies), 0, 0 }, |
515 | 120 |
637 | 121 { ngx_string("content_length"), NULL, ngx_http_variable_header, |
533 | 122 offsetof(ngx_http_request_t, headers_in.content_length), 0, 0 }, |
509 | 123 |
637 | 124 { ngx_string("content_type"), NULL, ngx_http_variable_header, |
533 | 125 offsetof(ngx_http_request_t, headers_in.content_type), 0, 0 }, |
509 | 126 |
637 | 127 { ngx_string("host"), NULL, ngx_http_variable_host, 0, 0, 0 }, |
509 | 128 |
982 | 129 { ngx_string("binary_remote_addr"), NULL, |
983
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ngx_http_variable_binary_remote_addr()
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parents:
982
diff
changeset
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130 ngx_http_variable_binary_remote_addr, 0, 0, 0 }, |
982 | 131 |
637 | 132 { ngx_string("remote_addr"), NULL, ngx_http_variable_remote_addr, 0, 0, 0 }, |
499 | 133 |
637 | 134 { ngx_string("remote_port"), NULL, ngx_http_variable_remote_port, 0, 0, 0 }, |
509 | 135 |
637 | 136 { ngx_string("server_addr"), NULL, ngx_http_variable_server_addr, 0, 0, 0 }, |
509 | 137 |
637 | 138 { ngx_string("server_port"), NULL, ngx_http_variable_server_port, 0, 0, 0 }, |
509 | 139 |
637 | 140 { ngx_string("server_protocol"), NULL, ngx_http_variable_request, |
533 | 141 offsetof(ngx_http_request_t, http_protocol), 0, 0 }, |
509 | 142 |
731 | 143 { ngx_string("scheme"), NULL, ngx_http_variable_scheme, 0, 0, 0 }, |
144 | |
637 | 145 { ngx_string("request_uri"), NULL, ngx_http_variable_request, |
533 | 146 offsetof(ngx_http_request_t, unparsed_uri), 0, 0 }, |
499 | 147 |
637 | 148 { ngx_string("uri"), NULL, ngx_http_variable_request, |
149 offsetof(ngx_http_request_t, uri), | |
1565 | 150 NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
637 | 151 |
152 { ngx_string("document_uri"), NULL, ngx_http_variable_request, | |
573 | 153 offsetof(ngx_http_request_t, uri), |
1565 | 154 NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
573 | 155 |
637 | 156 { ngx_string("request"), NULL, ngx_http_variable_request, |
569 | 157 offsetof(ngx_http_request_t, request_line), 0, 0 }, |
158 | |
637 | 159 { ngx_string("document_root"), NULL, |
1565 | 160 ngx_http_variable_document_root, 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
509 | 161 |
637 | 162 { ngx_string("query_string"), NULL, ngx_http_variable_request, |
509 | 163 offsetof(ngx_http_request_t, args), |
1565 | 164 NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
499 | 165 |
1350 | 166 { ngx_string("args"), |
167 ngx_http_variable_request_set, | |
168 ngx_http_variable_request, | |
589 | 169 offsetof(ngx_http_request_t, args), |
1565 | 170 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
589 | 171 |
1351 | 172 { ngx_string("is_args"), NULL, ngx_http_variable_is_args, |
1565 | 173 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
1351 | 174 |
637 | 175 { ngx_string("request_filename"), NULL, |
176 ngx_http_variable_request_filename, 0, | |
1565 | 177 NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
509 | 178 |
1811 | 179 { ngx_string("server_name"), NULL, ngx_http_variable_server_name, 0, 0, 0 }, |
509 | 180 |
637 | 181 { ngx_string("request_method"), NULL, |
182 ngx_http_variable_request_method, 0, 0, 0 }, | |
509 | 183 |
637 | 184 { ngx_string("remote_user"), NULL, ngx_http_variable_remote_user, 0, 0, 0 }, |
509 | 185 |
637 | 186 { ngx_string("body_bytes_sent"), NULL, ngx_http_variable_body_bytes_sent, |
611 | 187 0, 0, 0 }, |
188 | |
637 | 189 { ngx_string("request_completion"), NULL, |
190 ngx_http_variable_request_completion, | |
629 | 191 0, 0, 0 }, |
192 | |
759 | 193 { ngx_string("request_body_file"), NULL, |
194 ngx_http_variable_request_body_file, | |
195 0, 0, 0 }, | |
196 | |
641 | 197 { ngx_string("sent_http_content_type"), NULL, |
198 ngx_http_variable_sent_content_type, 0, 0, 0 }, | |
199 | |
200 { ngx_string("sent_http_content_length"), NULL, | |
201 ngx_http_variable_sent_content_length, 0, 0, 0 }, | |
202 | |
203 { ngx_string("sent_http_last_modified"), NULL, | |
204 ngx_http_variable_sent_last_modified, 0, 0, 0 }, | |
205 | |
206 { ngx_string("sent_http_connection"), NULL, | |
207 ngx_http_variable_sent_connection, 0, 0, 0 }, | |
208 | |
209 { ngx_string("sent_http_keep_alive"), NULL, | |
210 ngx_http_variable_sent_keep_alive, 0, 0, 0 }, | |
211 | |
212 { ngx_string("sent_http_transfer_encoding"), NULL, | |
213 ngx_http_variable_sent_transfer_encoding, 0, 0, 0 }, | |
214 | |
215 { ngx_string("sent_http_cache_control"), NULL, ngx_http_variable_headers, | |
216 offsetof(ngx_http_request_t, headers_out.cache_control), 0, 0 }, | |
217 | |
637 | 218 { ngx_string("limit_rate"), ngx_http_variable_request_set_size, |
219 ngx_http_variable_request, | |
220 offsetof(ngx_http_request_t, limit_rate), | |
1565 | 221 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
637 | 222 |
1329 | 223 { ngx_string("nginx_version"), NULL, ngx_http_variable_nginx_version, |
224 0, 0, 0 }, | |
225 | |
2011 | 226 { ngx_string("hostname"), NULL, ngx_http_variable_hostname, |
227 0, 0, 0 }, | |
228 | |
637 | 229 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
499 | 230 }; |
231 | |
232 | |
577 | 233 ngx_http_variable_value_t ngx_http_variable_null_value = |
234 ngx_http_variable(""); | |
235 ngx_http_variable_value_t ngx_http_variable_true_value = | |
236 ngx_http_variable("1"); | |
237 | |
238 | |
499 | 239 ngx_http_variable_t * |
509 | 240 ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags) |
241 { | |
611 | 242 ngx_int_t rc; |
509 | 243 ngx_uint_t i; |
611 | 244 ngx_hash_key_t *key; |
509 | 245 ngx_http_variable_t *v; |
246 ngx_http_core_main_conf_t *cmcf; | |
247 | |
248 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
249 | |
611 | 250 key = cmcf->variables_keys->keys.elts; |
251 for (i = 0; i < cmcf->variables_keys->keys.nelts; i++) { | |
252 if (name->len != key[i].key.len | |
253 || ngx_strncasecmp(name->data, key[i].key.data, name->len) != 0) | |
509 | 254 { |
255 continue; | |
256 } | |
257 | |
611 | 258 v = key[i].value; |
259 | |
1565 | 260 if (!(v->flags & NGX_HTTP_VAR_CHANGEABLE)) { |
509 | 261 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
262 "the duplicate \"%V\" variable", name); | |
263 return NULL; | |
264 } | |
265 | |
611 | 266 return v; |
509 | 267 } |
268 | |
611 | 269 v = ngx_palloc(cf->pool, sizeof(ngx_http_variable_t)); |
509 | 270 if (v == NULL) { |
271 return NULL; | |
272 } | |
273 | |
274 v->name.len = name->len; | |
2049 | 275 v->name.data = ngx_pnalloc(cf->pool, name->len); |
509 | 276 if (v->name.data == NULL) { |
277 return NULL; | |
278 } | |
279 | |
2135 | 280 ngx_strlow(v->name.data, name->data, name->len); |
509 | 281 |
637 | 282 v->set_handler = NULL; |
283 v->get_handler = NULL; | |
509 | 284 v->data = 0; |
285 v->flags = flags; | |
533 | 286 v->index = 0; |
509 | 287 |
611 | 288 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, 0); |
289 | |
290 if (rc == NGX_ERROR) { | |
291 return NULL; | |
292 } | |
293 | |
294 if (rc == NGX_BUSY) { | |
295 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
296 "conflicting variable name \"%V\"", name); | |
297 return NULL; | |
298 } | |
299 | |
509 | 300 return v; |
301 } | |
302 | |
303 | |
304 ngx_int_t | |
305 ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name) | |
499 | 306 { |
501 | 307 ngx_uint_t i; |
308 ngx_http_variable_t *v; | |
499 | 309 ngx_http_core_main_conf_t *cmcf; |
310 | |
311 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
312 | |
501 | 313 v = cmcf->variables.elts; |
314 | |
315 if (v == NULL) { | |
499 | 316 if (ngx_array_init(&cmcf->variables, cf->pool, 4, |
317 sizeof(ngx_http_variable_t)) == NGX_ERROR) | |
318 { | |
509 | 319 return NGX_ERROR; |
499 | 320 } |
501 | 321 |
322 } else { | |
323 for (i = 0; i < cmcf->variables.nelts; i++) { | |
324 if (name->len != v[i].name.len | |
325 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0) | |
326 { | |
327 continue; | |
328 } | |
329 | |
509 | 330 return i; |
501 | 331 } |
499 | 332 } |
333 | |
501 | 334 v = ngx_array_push(&cmcf->variables); |
335 if (v == NULL) { | |
509 | 336 return NGX_ERROR; |
499 | 337 } |
338 | |
501 | 339 v->name.len = name->len; |
2049 | 340 v->name.data = ngx_pnalloc(cf->pool, name->len); |
501 | 341 if (v->name.data == NULL) { |
509 | 342 return NGX_ERROR; |
501 | 343 } |
499 | 344 |
2135 | 345 ngx_strlow(v->name.data, name->data, name->len); |
501 | 346 |
637 | 347 v->set_handler = NULL; |
348 v->get_handler = NULL; | |
501 | 349 v->data = 0; |
509 | 350 v->flags = 0; |
533 | 351 v->index = cmcf->variables.nelts - 1; |
501 | 352 |
509 | 353 return cmcf->variables.nelts - 1; |
499 | 354 } |
355 | |
356 | |
357 ngx_http_variable_value_t * | |
358 ngx_http_get_indexed_variable(ngx_http_request_t *r, ngx_uint_t index) | |
359 { | |
501 | 360 ngx_http_variable_t *v; |
499 | 361 ngx_http_core_main_conf_t *cmcf; |
362 | |
363 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
364 | |
553 | 365 if (cmcf->variables.nelts <= index) { |
499 | 366 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
367 "unknown variable index: %d", index); | |
368 return NULL; | |
369 } | |
370 | |
573 | 371 if (r->variables[index].not_found || r->variables[index].valid) { |
372 return &r->variables[index]; | |
501 | 373 } |
499 | 374 |
501 | 375 v = cmcf->variables.elts; |
499 | 376 |
637 | 377 if (v[index].get_handler(r, &r->variables[index], v[index].data) |
378 == NGX_OK) | |
379 { | |
1565 | 380 if (v[index].flags & NGX_HTTP_VAR_NOCACHEABLE) { |
381 r->variables[index].no_cacheable = 1; | |
499 | 382 } |
573 | 383 |
384 return &r->variables[index]; | |
499 | 385 } |
386 | |
657 | 387 r->variables[index].valid = 0; |
388 r->variables[index].not_found = 1; | |
389 | |
798 | 390 return NULL; |
573 | 391 } |
392 | |
393 | |
394 ngx_http_variable_value_t * | |
395 ngx_http_get_flushed_variable(ngx_http_request_t *r, ngx_uint_t index) | |
396 { | |
1150 | 397 ngx_http_variable_value_t *v; |
573 | 398 |
399 v = &r->variables[index]; | |
400 | |
401 if (v->valid) { | |
1565 | 402 if (!v->no_cacheable) { |
573 | 403 return v; |
404 } | |
405 | |
406 v->valid = 0; | |
407 v->not_found = 0; | |
509 | 408 } |
501 | 409 |
573 | 410 return ngx_http_get_indexed_variable(r, index); |
499 | 411 } |
412 | |
413 | |
414 ngx_http_variable_value_t * | |
635 | 415 ngx_http_get_variable(ngx_http_request_t *r, ngx_str_t *name, ngx_uint_t key, |
416 ngx_uint_t nowarn) | |
499 | 417 { |
501 | 418 ngx_http_variable_t *v; |
573 | 419 ngx_http_variable_value_t *vv; |
499 | 420 ngx_http_core_main_conf_t *cmcf; |
421 | |
422 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
423 | |
611 | 424 v = ngx_hash_find(&cmcf->variables_hash, key, name->data, name->len); |
499 | 425 |
611 | 426 if (v) { |
427 if (v->flags & NGX_HTTP_VAR_INDEXED) { | |
428 return ngx_http_get_indexed_variable(r, v->index); | |
519 | 429 |
430 } else { | |
499 | 431 |
573 | 432 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t)); |
501 | 433 |
637 | 434 if (vv && v->get_handler(r, vv, v->data) == NGX_OK) { |
573 | 435 return vv; |
436 } | |
509 | 437 |
573 | 438 return NULL; |
439 } | |
509 | 440 } |
441 | |
442 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t)); | |
443 if (vv == NULL) { | |
444 return NULL; | |
445 } | |
446 | |
573 | 447 if (ngx_strncmp(name->data, "http_", 5) == 0) { |
499 | 448 |
577 | 449 if (ngx_http_variable_unknown_header_in(r, vv, (uintptr_t) name) |
450 == NGX_OK) | |
451 { | |
452 return vv; | |
453 } | |
454 | |
455 return NULL; | |
456 } | |
457 | |
458 if (ngx_strncmp(name->data, "sent_http_", 10) == 0) { | |
459 | |
460 if (ngx_http_variable_unknown_header_out(r, vv, (uintptr_t) name) | |
461 == NGX_OK) | |
573 | 462 { |
463 return vv; | |
464 } | |
499 | 465 |
466 return NULL; | |
467 } | |
468 | |
1162 | 469 if (ngx_strncmp(name->data, "upstream_http_", 10) == 0) { |
470 | |
471 if (ngx_http_upstream_header_variable(r, vv, (uintptr_t) name) | |
472 == NGX_OK) | |
473 { | |
474 return vv; | |
475 } | |
476 | |
477 return NULL; | |
478 } | |
479 | |
635 | 480 vv->not_found = 1; |
573 | 481 |
635 | 482 if (nowarn == 0) { |
483 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
484 "unknown \"%V\" variable", name); | |
485 } | |
499 | 486 |
501 | 487 return vv; |
499 | 488 } |
489 | |
490 | |
573 | 491 static ngx_int_t |
492 ngx_http_variable_request(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
493 uintptr_t data) | |
494 { | |
495 ngx_str_t *s; | |
496 | |
497 s = (ngx_str_t *) ((char *) r + data); | |
498 | |
499 if (s->data) { | |
500 v->len = s->len; | |
501 v->valid = 1; | |
1565 | 502 v->no_cacheable = 0; |
573 | 503 v->not_found = 0; |
504 v->data = s->data; | |
505 | |
506 } else { | |
507 v->not_found = 1; | |
508 } | |
509 | |
510 return NGX_OK; | |
511 } | |
512 | |
513 | |
637 | 514 static void |
1350 | 515 ngx_http_variable_request_set(ngx_http_request_t *r, |
516 ngx_http_variable_value_t *v, uintptr_t data) | |
517 { | |
518 ngx_str_t *s; | |
519 | |
520 s = (ngx_str_t *) ((char *) r + data); | |
521 | |
522 s->len = v->len; | |
523 s->data = v->data; | |
524 } | |
525 | |
526 | |
527 static void | |
637 | 528 ngx_http_variable_request_set_size(ngx_http_request_t *r, |
529 ngx_http_variable_value_t *v, uintptr_t data) | |
530 { | |
531 ssize_t s, *sp; | |
532 ngx_str_t val; | |
533 | |
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534 val.len = v->len; |
637 | 535 val.data = v->data; |
536 | |
537 s = ngx_parse_size(&val); | |
538 | |
539 if (s == NGX_ERROR) { | |
540 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
541 "invalid size \"%V\"", &val); | |
542 return; | |
543 } | |
544 | |
545 sp = (ssize_t *) ((char *) r + data); | |
546 | |
547 *sp = s; | |
548 | |
549 return; | |
550 } | |
551 | |
552 | |
573 | 553 static ngx_int_t |
554 ngx_http_variable_header(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
555 uintptr_t data) | |
515 | 556 { |
573 | 557 ngx_table_elt_t *h; |
558 | |
559 h = *(ngx_table_elt_t **) ((char *) r + data); | |
560 | |
561 if (h) { | |
562 v->len = h->value.len; | |
563 v->valid = 1; | |
1565 | 564 v->no_cacheable = 0; |
573 | 565 v->not_found = 0; |
566 v->data = h->value.data; | |
567 | |
568 } else { | |
569 v->not_found = 1; | |
570 } | |
571 | |
572 return NGX_OK; | |
573 } | |
574 | |
575 | |
576 static ngx_int_t | |
577 ngx_http_variable_headers(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
578 uintptr_t data) | |
579 { | |
667 | 580 ssize_t len; |
573 | 581 u_char *p; |
667 | 582 ngx_uint_t i, n; |
573 | 583 ngx_array_t *a; |
584 ngx_table_elt_t **h; | |
515 | 585 |
586 a = (ngx_array_t *) ((char *) r + data); | |
587 | |
667 | 588 n = a->nelts; |
589 | |
590 if (n == 0) { | |
573 | 591 v->not_found = 1; |
592 return NGX_OK; | |
515 | 593 } |
594 | |
573 | 595 v->valid = 1; |
1565 | 596 v->no_cacheable = 0; |
573 | 597 v->not_found = 0; |
515 | 598 |
599 h = a->elts; | |
600 | |
667 | 601 if (n == 1) { |
573 | 602 v->len = (*h)->value.len; |
603 v->data = (*h)->value.data; | |
515 | 604 |
573 | 605 return NGX_OK; |
515 | 606 } |
607 | |
667 | 608 len = - (ssize_t) (sizeof("; ") - 1); |
573 | 609 |
667 | 610 for (i = 0; i < n; i++) { |
573 | 611 len += h[i]->value.len + sizeof("; ") - 1; |
515 | 612 } |
613 | |
2049 | 614 p = ngx_pnalloc(r->pool, len); |
573 | 615 if (p == NULL) { |
616 return NGX_ERROR; | |
617 } | |
618 | |
619 v->len = len; | |
620 v->data = p; | |
515 | 621 |
622 for (i = 0; /* void */ ; i++) { | |
573 | 623 p = ngx_copy(p, h[i]->value.data, h[i]->value.len); |
515 | 624 |
667 | 625 if (i == n - 1) { |
515 | 626 break; |
627 } | |
628 | |
629 *p++ = ';'; *p++ = ' '; | |
630 } | |
631 | |
573 | 632 return NGX_OK; |
515 | 633 } |
634 | |
635 | |
573 | 636 static ngx_int_t |
577 | 637 ngx_http_variable_unknown_header_in(ngx_http_request_t *r, |
638 ngx_http_variable_value_t *v, uintptr_t data) | |
639 { | |
640 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, | |
641 &r->headers_in.headers.part, | |
642 sizeof("http_") - 1); | |
643 } | |
644 | |
645 | |
646 static ngx_int_t | |
647 ngx_http_variable_unknown_header_out(ngx_http_request_t *r, | |
573 | 648 ngx_http_variable_value_t *v, uintptr_t data) |
499 | 649 { |
577 | 650 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, |
651 &r->headers_out.headers.part, | |
652 sizeof("sent_http_") - 1); | |
653 } | |
501 | 654 |
577 | 655 |
1162 | 656 ngx_int_t |
577 | 657 ngx_http_variable_unknown_header(ngx_http_variable_value_t *v, ngx_str_t *var, |
658 ngx_list_part_t *part, size_t prefix) | |
659 { | |
573 | 660 u_char ch; |
661 ngx_uint_t i, n; | |
662 ngx_table_elt_t *header; | |
499 | 663 |
664 header = part->elts; | |
665 | |
666 for (i = 0; /* void */ ; i++) { | |
667 | |
668 if (i >= part->nelts) { | |
669 if (part->next == NULL) { | |
670 break; | |
671 } | |
672 | |
673 part = part->next; | |
674 header = part->elts; | |
675 i = 0; | |
676 } | |
677 | |
577 | 678 for (n = 0; n + prefix < var->len && n < header[i].key.len; n++) { |
499 | 679 ch = header[i].key.data[n]; |
680 | |
509 | 681 if (ch >= 'A' && ch <= 'Z') { |
682 ch |= 0x20; | |
499 | 683 |
684 } else if (ch == '-') { | |
685 ch = '_'; | |
686 } | |
687 | |
577 | 688 if (var->data[n + prefix] != ch) { |
499 | 689 break; |
690 } | |
691 } | |
692 | |
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693 if (n + prefix == var->len && n == header[i].key.len) { |
573 | 694 v->len = header[i].value.len; |
695 v->valid = 1; | |
1565 | 696 v->no_cacheable = 0; |
573 | 697 v->not_found = 0; |
698 v->data = header[i].value.data; | |
499 | 699 |
573 | 700 return NGX_OK; |
499 | 701 } |
702 } | |
703 | |
573 | 704 v->not_found = 1; |
705 | |
706 return NGX_OK; | |
509 | 707 } |
708 | |
709 | |
573 | 710 static ngx_int_t |
711 ngx_http_variable_host(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
712 uintptr_t data) | |
509 | 713 { |
1811 | 714 ngx_http_core_srv_conf_t *cscf; |
715 | |
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716 if (r->headers_in.server.len) { |
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717 v->len = r->headers_in.server.len; |
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718 v->data = r->headers_in.server.data; |
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719 |
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720 } else { |
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721 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); |
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722 |
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723 v->len = cscf->server_name.len; |
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724 v->data = cscf->server_name.data; |
509 | 725 } |
726 | |
573 | 727 v->valid = 1; |
1565 | 728 v->no_cacheable = 0; |
573 | 729 v->not_found = 0; |
509 | 730 |
573 | 731 return NGX_OK; |
499 | 732 } |
733 | |
734 | |
573 | 735 static ngx_int_t |
983
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736 ngx_http_variable_binary_remote_addr(ngx_http_request_t *r, |
573 | 737 ngx_http_variable_value_t *v, uintptr_t data) |
499 | 738 { |
982 | 739 struct sockaddr_in *sin; |
740 | |
983
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741 /* AF_INET only */ |
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742 |
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743 sin = (struct sockaddr_in *) r->connection->sockaddr; |
982 | 744 |
983
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745 v->len = sizeof(in_addr_t); |
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746 v->valid = 1; |
1565 | 747 v->no_cacheable = 0; |
983
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748 v->not_found = 0; |
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749 v->data = (u_char *) &sin->sin_addr.s_addr; |
982 | 750 |
983
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751 return NGX_OK; |
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752 } |
982 | 753 |
754 | |
983
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755 static ngx_int_t |
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756 ngx_http_variable_remote_addr(ngx_http_request_t *r, |
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757 ngx_http_variable_value_t *v, uintptr_t data) |
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758 { |
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759 v->len = r->connection->addr_text.len; |
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760 v->valid = 1; |
1565 | 761 v->no_cacheable = 0; |
983
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762 v->not_found = 0; |
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763 v->data = r->connection->addr_text.data; |
499 | 764 |
573 | 765 return NGX_OK; |
499 | 766 } |
767 | |
768 | |
573 | 769 static ngx_int_t |
770 ngx_http_variable_remote_port(ngx_http_request_t *r, | |
771 ngx_http_variable_value_t *v, uintptr_t data) | |
499 | 772 { |
573 | 773 ngx_uint_t port; |
774 struct sockaddr_in *sin; | |
509 | 775 |
573 | 776 v->len = 0; |
777 v->valid = 1; | |
1565 | 778 v->no_cacheable = 0; |
573 | 779 v->not_found = 0; |
509 | 780 |
2049 | 781 v->data = ngx_pnalloc(r->pool, sizeof("65535") - 1); |
573 | 782 if (v->data == NULL) { |
783 return NGX_ERROR; | |
509 | 784 } |
785 | |
786 /* AF_INET only */ | |
577 | 787 |
509 | 788 if (r->connection->sockaddr->sa_family == AF_INET) { |
789 sin = (struct sockaddr_in *) r->connection->sockaddr; | |
577 | 790 |
509 | 791 port = ntohs(sin->sin_port); |
577 | 792 |
509 | 793 if (port > 0 && port < 65536) { |
573 | 794 v->len = ngx_sprintf(v->data, "%ui", port) - v->data; |
509 | 795 } |
796 } | |
797 | |
573 | 798 return NGX_OK; |
509 | 799 } |
800 | |
801 | |
573 | 802 static ngx_int_t |
803 ngx_http_variable_server_addr(ngx_http_request_t *r, | |
804 ngx_http_variable_value_t *v, uintptr_t data) | |
509 | 805 { |
1805 | 806 ngx_str_t s; |
499 | 807 |
2049 | 808 s.data = ngx_pnalloc(r->pool, INET_ADDRSTRLEN); |
1805 | 809 if (s.data == NULL) { |
573 | 810 return NGX_ERROR; |
509 | 811 } |
812 | |
1805 | 813 if (ngx_http_server_addr(r, &s) != NGX_OK) { |
814 return NGX_ERROR; | |
509 | 815 } |
816 | |
1805 | 817 v->len = s.len; |
573 | 818 v->valid = 1; |
1565 | 819 v->no_cacheable = 0; |
573 | 820 v->not_found = 0; |
1805 | 821 v->data = s.data; |
499 | 822 |
573 | 823 return NGX_OK; |
499 | 824 } |
825 | |
826 | |
573 | 827 static ngx_int_t |
828 ngx_http_variable_server_port(ngx_http_request_t *r, | |
829 ngx_http_variable_value_t *v, uintptr_t data) | |
509 | 830 { |
573 | 831 v->len = r->port_text->len - 1; |
832 v->valid = 1; | |
1565 | 833 v->no_cacheable = 0; |
573 | 834 v->not_found = 0; |
835 v->data = r->port_text->data + 1; | |
509 | 836 |
573 | 837 return NGX_OK; |
509 | 838 } |
839 | |
840 | |
573 | 841 static ngx_int_t |
731 | 842 ngx_http_variable_scheme(ngx_http_request_t *r, |
843 ngx_http_variable_value_t *v, uintptr_t data) | |
844 { | |
845 #if (NGX_HTTP_SSL) | |
846 | |
847 if (r->connection->ssl) { | |
848 v->len = sizeof("https") - 1; | |
849 v->valid = 1; | |
1565 | 850 v->no_cacheable = 0; |
731 | 851 v->not_found = 0; |
732 | 852 v->data = (u_char *) "https"; |
731 | 853 |
854 return NGX_OK; | |
855 } | |
856 | |
857 #endif | |
858 | |
859 v->len = sizeof("http") - 1; | |
860 v->valid = 1; | |
1565 | 861 v->no_cacheable = 0; |
731 | 862 v->not_found = 0; |
732 | 863 v->data = (u_char *) "http"; |
731 | 864 |
865 return NGX_OK; | |
866 } | |
867 | |
868 | |
869 static ngx_int_t | |
1351 | 870 ngx_http_variable_is_args(ngx_http_request_t *r, |
871 ngx_http_variable_value_t *v, uintptr_t data) | |
872 { | |
873 v->valid = 1; | |
1565 | 874 v->no_cacheable = 0; |
1351 | 875 v->not_found = 0; |
876 | |
877 if (r->args.len == 0) { | |
878 v->len = 0; | |
879 v->data = NULL; | |
880 return NGX_OK; | |
881 } | |
882 | |
883 v->len = 1; | |
884 v->data = (u_char *) "?"; | |
885 | |
886 return NGX_OK; | |
887 } | |
888 | |
889 | |
890 static ngx_int_t | |
573 | 891 ngx_http_variable_document_root(ngx_http_request_t *r, |
892 ngx_http_variable_value_t *v, uintptr_t data) | |
499 | 893 { |
671 | 894 ngx_str_t path; |
573 | 895 ngx_http_core_loc_conf_t *clcf; |
509 | 896 |
897 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
898 | |
671 | 899 if (clcf->root_lengths == NULL) { |
900 v->len = clcf->root.len; | |
901 v->valid = 1; | |
1565 | 902 v->no_cacheable = 0; |
671 | 903 v->not_found = 0; |
904 v->data = clcf->root.data; | |
905 | |
906 } else { | |
907 if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 0, | |
908 clcf->root_values->elts) | |
909 == NULL) | |
910 { | |
911 return NGX_ERROR; | |
912 } | |
913 | |
1352 | 914 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0) |
915 == NGX_ERROR) | |
916 { | |
671 | 917 return NGX_ERROR; |
918 } | |
919 | |
920 v->len = path.len; | |
921 v->valid = 1; | |
1565 | 922 v->no_cacheable = 0; |
671 | 923 v->not_found = 0; |
924 v->data = path.data; | |
925 } | |
509 | 926 |
573 | 927 return NGX_OK; |
509 | 928 } |
929 | |
930 | |
573 | 931 static ngx_int_t |
932 ngx_http_variable_request_filename(ngx_http_request_t *r, | |
933 ngx_http_variable_value_t *v, uintptr_t data) | |
509 | 934 { |
773 | 935 size_t root; |
573 | 936 ngx_str_t path; |
499 | 937 |
773 | 938 if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) { |
573 | 939 return NGX_ERROR; |
557 | 940 } |
509 | 941 |
557 | 942 /* ngx_http_map_uri_to_path() allocates memory for terminating '\0' */ |
509 | 943 |
573 | 944 v->len = path.len - 1; |
945 v->valid = 1; | |
1565 | 946 v->no_cacheable = 0; |
573 | 947 v->not_found = 0; |
948 v->data = path.data; | |
499 | 949 |
573 | 950 return NGX_OK; |
499 | 951 } |
952 | |
953 | |
573 | 954 static ngx_int_t |
1811 | 955 ngx_http_variable_server_name(ngx_http_request_t *r, |
956 ngx_http_variable_value_t *v, uintptr_t data) | |
957 { | |
958 ngx_http_core_srv_conf_t *cscf; | |
959 | |
960 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); | |
961 | |
962 v->len = cscf->server_name.len; | |
963 v->valid = 1; | |
964 v->no_cacheable = 0; | |
965 v->not_found = 0; | |
966 v->data = cscf->server_name.data; | |
967 | |
968 return NGX_OK; | |
969 } | |
970 | |
971 | |
972 static ngx_int_t | |
573 | 973 ngx_http_variable_request_method(ngx_http_request_t *r, |
974 ngx_http_variable_value_t *v, uintptr_t data) | |
561 | 975 { |
647 | 976 if (r->main->method_name.data) { |
977 v->len = r->main->method_name.len; | |
573 | 978 v->valid = 1; |
1565 | 979 v->no_cacheable = 0; |
573 | 980 v->not_found = 0; |
647 | 981 v->data = r->main->method_name.data; |
573 | 982 |
983 } else { | |
984 v->not_found = 1; | |
561 | 985 } |
986 | |
573 | 987 return NGX_OK; |
561 | 988 } |
989 | |
990 | |
573 | 991 static ngx_int_t |
992 ngx_http_variable_remote_user(ngx_http_request_t *r, | |
993 ngx_http_variable_value_t *v, uintptr_t data) | |
539 | 994 { |
573 | 995 ngx_int_t rc; |
539 | 996 |
997 rc = ngx_http_auth_basic_user(r); | |
998 | |
999 if (rc == NGX_DECLINED) { | |
573 | 1000 v->not_found = 1; |
1001 return NGX_OK; | |
539 | 1002 } |
1003 | |
1004 if (rc == NGX_ERROR) { | |
573 | 1005 return NGX_ERROR; |
539 | 1006 } |
1007 | |
573 | 1008 v->len = r->headers_in.user.len; |
1009 v->valid = 1; | |
1565 | 1010 v->no_cacheable = 0; |
573 | 1011 v->not_found = 0; |
1012 v->data = r->headers_in.user.data; | |
571 | 1013 |
573 | 1014 return NGX_OK; |
571 | 1015 } |
1016 | |
1017 | |
611 | 1018 static ngx_int_t |
1019 ngx_http_variable_body_bytes_sent(ngx_http_request_t *r, | |
1020 ngx_http_variable_value_t *v, uintptr_t data) | |
1021 { | |
1022 off_t sent; | |
1023 u_char *p; | |
1024 | |
1025 sent = r->connection->sent - r->header_size; | |
1026 | |
1027 if (sent < 0) { | |
1028 sent = 0; | |
1029 } | |
1030 | |
2049 | 1031 p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN); |
611 | 1032 if (p == NULL) { |
1033 return NGX_ERROR; | |
1034 } | |
1035 | |
1036 v->len = ngx_sprintf(p, "%O", sent) - p; | |
1037 v->valid = 1; | |
1565 | 1038 v->no_cacheable = 0; |
611 | 1039 v->not_found = 0; |
1040 v->data = p; | |
1041 | |
1042 return NGX_OK; | |
1043 } | |
1044 | |
1045 | |
629 | 1046 static ngx_int_t |
641 | 1047 ngx_http_variable_sent_content_type(ngx_http_request_t *r, |
1048 ngx_http_variable_value_t *v, uintptr_t data) | |
1049 { | |
1050 if (r->headers_out.content_type.len) { | |
1051 v->len = r->headers_out.content_type.len; | |
1052 v->valid = 1; | |
1565 | 1053 v->no_cacheable = 0; |
641 | 1054 v->not_found = 0; |
1055 v->data = r->headers_out.content_type.data; | |
1056 | |
1057 } else { | |
1058 v->not_found = 1; | |
1059 } | |
1060 | |
1061 return NGX_OK; | |
1062 } | |
1063 | |
1064 | |
1065 static ngx_int_t | |
1066 ngx_http_variable_sent_content_length(ngx_http_request_t *r, | |
1067 ngx_http_variable_value_t *v, uintptr_t data) | |
1068 { | |
1069 u_char *p; | |
1070 | |
1071 if (r->headers_out.content_length) { | |
1072 v->len = r->headers_out.content_length->value.len; | |
1073 v->valid = 1; | |
1565 | 1074 v->no_cacheable = 0; |
641 | 1075 v->not_found = 0; |
1076 v->data = r->headers_out.content_length->value.data; | |
1077 | |
1078 return NGX_OK; | |
1079 } | |
1080 | |
1081 if (r->headers_out.content_length_n >= 0) { | |
2049 | 1082 p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN); |
641 | 1083 if (p == NULL) { |
1084 return NGX_ERROR; | |
1085 } | |
1086 | |
1087 v->len = ngx_sprintf(p, "%O", r->headers_out.content_length_n) - p; | |
1088 v->valid = 1; | |
1565 | 1089 v->no_cacheable = 0; |
641 | 1090 v->not_found = 0; |
1091 v->data = p; | |
1092 | |
1093 return NGX_OK; | |
1094 } | |
1095 | |
1096 v->not_found = 1; | |
1097 | |
1098 return NGX_OK; | |
1099 } | |
1100 | |
1101 | |
1102 static ngx_int_t | |
1103 ngx_http_variable_sent_last_modified(ngx_http_request_t *r, | |
1104 ngx_http_variable_value_t *v, uintptr_t data) | |
1105 { | |
1106 u_char *p; | |
1107 | |
1108 if (r->headers_out.last_modified) { | |
1109 v->len = r->headers_out.last_modified->value.len; | |
1110 v->valid = 1; | |
1565 | 1111 v->no_cacheable = 0; |
641 | 1112 v->not_found = 0; |
1113 v->data = r->headers_out.last_modified->value.data; | |
1114 | |
1115 return NGX_OK; | |
1116 } | |
1117 | |
1118 if (r->headers_out.last_modified_time >= 0) { | |
2049 | 1119 p = ngx_pnalloc(r->pool, |
641 | 1120 sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT") - 1); |
1121 if (p == NULL) { | |
1122 return NGX_ERROR; | |
1123 } | |
1124 | |
1125 v->len = ngx_http_time(p, r->headers_out.last_modified_time) - p; | |
1126 v->valid = 1; | |
1565 | 1127 v->no_cacheable = 0; |
641 | 1128 v->not_found = 0; |
1129 v->data = p; | |
1130 | |
1131 return NGX_OK; | |
1132 } | |
1133 | |
1134 v->not_found = 1; | |
1135 | |
1136 return NGX_OK; | |
1137 } | |
1138 | |
1139 | |
1140 static ngx_int_t | |
1141 ngx_http_variable_sent_connection(ngx_http_request_t *r, | |
1142 ngx_http_variable_value_t *v, uintptr_t data) | |
1143 { | |
1144 size_t len; | |
1145 char *p; | |
1146 | |
1147 if (r->keepalive) { | |
1148 len = sizeof("keep-alive") - 1; | |
1149 p = "keep-alive"; | |
1150 | |
1151 } else { | |
1152 len = sizeof("close") - 1; | |
1153 p = "close"; | |
1154 } | |
1155 | |
1156 v->len = len; | |
1157 v->valid = 1; | |
1565 | 1158 v->no_cacheable = 0; |
641 | 1159 v->not_found = 0; |
1160 v->data = (u_char *) p; | |
1161 | |
1162 return NGX_OK; | |
1163 } | |
1164 | |
1165 | |
1166 static ngx_int_t | |
1167 ngx_http_variable_sent_keep_alive(ngx_http_request_t *r, | |
1168 ngx_http_variable_value_t *v, uintptr_t data) | |
1169 { | |
1170 u_char *p; | |
1171 ngx_http_core_loc_conf_t *clcf; | |
1172 | |
1173 if (r->keepalive) { | |
1174 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
1175 | |
1176 if (clcf->keepalive_header) { | |
1177 | |
2049 | 1178 p = ngx_pnalloc(r->pool, sizeof("timeout=") - 1 + NGX_TIME_T_LEN); |
641 | 1179 if (p == NULL) { |
1180 return NGX_ERROR; | |
1181 } | |
1182 | |
1183 v->len = ngx_sprintf(p, "timeout=%T", clcf->keepalive_header) - p; | |
1184 v->valid = 1; | |
1565 | 1185 v->no_cacheable = 0; |
641 | 1186 v->not_found = 0; |
1187 v->data = p; | |
1188 | |
1189 return NGX_OK; | |
1190 } | |
1191 } | |
1192 | |
1193 v->not_found = 1; | |
1194 | |
1195 return NGX_OK; | |
1196 } | |
1197 | |
1198 | |
1199 static ngx_int_t | |
1200 ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r, | |
1201 ngx_http_variable_value_t *v, uintptr_t data) | |
1202 { | |
1203 if (r->chunked) { | |
1204 v->len = sizeof("chunked") - 1; | |
1205 v->valid = 1; | |
1565 | 1206 v->no_cacheable = 0; |
641 | 1207 v->not_found = 0; |
1208 v->data = (u_char *) "chunked"; | |
1209 | |
1210 } else { | |
1211 v->not_found = 1; | |
1212 } | |
1213 | |
1214 return NGX_OK; | |
1215 } | |
1216 | |
1217 | |
1218 static ngx_int_t | |
629 | 1219 ngx_http_variable_request_completion(ngx_http_request_t *r, |
1220 ngx_http_variable_value_t *v, uintptr_t data) | |
1221 { | |
1222 if (r->request_complete) { | |
1223 v->len = 2; | |
1224 v->valid = 1; | |
1565 | 1225 v->no_cacheable = 0; |
629 | 1226 v->not_found = 0; |
1227 v->data = (u_char *) "OK"; | |
1228 | |
1229 return NGX_OK; | |
1230 } | |
1231 | |
1232 v->len = 0; | |
1233 v->valid = 1; | |
1565 | 1234 v->no_cacheable = 0; |
629 | 1235 v->not_found = 0; |
1236 v->data = (u_char *) ""; | |
1237 | |
1238 return NGX_OK; | |
1239 } | |
1240 | |
1241 | |
759 | 1242 static ngx_int_t |
1243 ngx_http_variable_request_body_file(ngx_http_request_t *r, | |
1244 ngx_http_variable_value_t *v, uintptr_t data) | |
1245 { | |
1246 if (r->request_body == NULL || r->request_body->temp_file == NULL) { | |
763
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|
1247 v->not_found = 1; |
759 | 1248 |
1249 return NGX_OK; | |
1250 } | |
1251 | |
1252 v->len = r->request_body->temp_file->file.name.len; | |
1253 v->valid = 1; | |
1565 | 1254 v->no_cacheable = 0; |
759 | 1255 v->not_found = 0; |
1256 v->data = r->request_body->temp_file->file.name.data; | |
1257 | |
1258 return NGX_OK; | |
1259 } | |
1260 | |
1261 | |
1329 | 1262 static ngx_int_t |
1263 ngx_http_variable_nginx_version(ngx_http_request_t *r, | |
1264 ngx_http_variable_value_t *v, uintptr_t data) | |
1265 { | |
1266 v->len = sizeof(NGINX_VERSION) - 1; | |
1267 v->valid = 1; | |
1565 | 1268 v->no_cacheable = 0; |
1329 | 1269 v->not_found = 0; |
1270 v->data = (u_char *) NGINX_VERSION; | |
1271 | |
1272 return NGX_OK; | |
1273 } | |
1274 | |
1275 | |
2011 | 1276 static ngx_int_t |
1277 ngx_http_variable_hostname(ngx_http_request_t *r, | |
1278 ngx_http_variable_value_t *v, uintptr_t data) | |
1279 { | |
1280 v->len = ngx_cycle->hostname.len; | |
1281 v->valid = 1; | |
1282 v->no_cacheable = 0; | |
1283 v->not_found = 0; | |
1284 v->data = ngx_cycle->hostname.data; | |
1285 | |
1286 return NGX_OK; | |
1287 } | |
1288 | |
1289 | |
499 | 1290 ngx_int_t |
509 | 1291 ngx_http_variables_add_core_vars(ngx_conf_t *cf) |
499 | 1292 { |
611 | 1293 ngx_int_t rc; |
1294 ngx_http_variable_t *v; | |
501 | 1295 ngx_http_core_main_conf_t *cmcf; |
499 | 1296 |
509 | 1297 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); |
1298 | |
611 | 1299 cmcf->variables_keys = ngx_pcalloc(cf->temp_pool, |
1300 sizeof(ngx_hash_keys_arrays_t)); | |
1301 if (cmcf->variables_keys == NULL) { | |
1302 return NGX_ERROR; | |
1303 } | |
1304 | |
1305 cmcf->variables_keys->pool = cf->pool; | |
1306 cmcf->variables_keys->temp_pool = cf->pool; | |
1307 | |
1308 if (ngx_hash_keys_array_init(cmcf->variables_keys, NGX_HASH_SMALL) | |
1309 != NGX_OK) | |
509 | 1310 { |
499 | 1311 return NGX_ERROR; |
1312 } | |
1313 | |
611 | 1314 for (v = ngx_http_core_variables; v->name.len; v++) { |
1315 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, | |
1316 NGX_HASH_READONLY_KEY); | |
1317 | |
1318 if (rc == NGX_OK) { | |
1319 continue; | |
499 | 1320 } |
1321 | |
611 | 1322 if (rc == NGX_BUSY) { |
1323 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1324 "conflicting variable name \"%V\"", &v->name); | |
1325 } | |
1326 | |
1327 return NGX_ERROR; | |
499 | 1328 } |
1329 | |
1330 return NGX_OK; | |
1331 } | |
509 | 1332 |
1333 | |
1334 ngx_int_t | |
1335 ngx_http_variables_init_vars(ngx_conf_t *cf) | |
1336 { | |
1337 ngx_uint_t i, n; | |
611 | 1338 ngx_hash_key_t *key; |
1339 ngx_hash_init_t hash; | |
509 | 1340 ngx_http_variable_t *v, *av; |
1341 ngx_http_core_main_conf_t *cmcf; | |
1342 | |
1343 /* set the handlers for the indexed http variables */ | |
1344 | |
1345 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
1346 | |
1347 v = cmcf->variables.elts; | |
611 | 1348 key = cmcf->variables_keys->keys.elts; |
509 | 1349 |
1350 for (i = 0; i < cmcf->variables.nelts; i++) { | |
1351 | |
611 | 1352 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) { |
509 | 1353 |
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1354 av = key[n].value; |
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1355 |
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1356 if (av->get_handler |
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|
1357 && v[i].name.len == key[n].key.len |
611 | 1358 && ngx_strncmp(v[i].name.data, key[n].key.data, v[i].name.len) |
509 | 1359 == 0) |
1360 { | |
637 | 1361 v[i].get_handler = av->get_handler; |
611 | 1362 v[i].data = av->data; |
527 | 1363 |
611 | 1364 av->flags |= NGX_HTTP_VAR_INDEXED; |
1365 v[i].flags = av->flags; | |
509 | 1366 |
611 | 1367 av->index = i; |
533 | 1368 |
509 | 1369 goto next; |
1370 } | |
1371 } | |
1372 | |
1373 if (ngx_strncmp(v[i].name.data, "http_", 5) == 0) { | |
637 | 1374 v[i].get_handler = ngx_http_variable_unknown_header_in; |
577 | 1375 v[i].data = (uintptr_t) &v[i].name; |
1376 | |
1377 continue; | |
1378 } | |
1379 | |
1380 if (ngx_strncmp(v[i].name.data, "sent_http_", 10) == 0) { | |
637 | 1381 v[i].get_handler = ngx_http_variable_unknown_header_out; |
509 | 1382 v[i].data = (uintptr_t) &v[i].name; |
1383 | |
1384 continue; | |
1385 } | |
1386 | |
1162 | 1387 if (ngx_strncmp(v[i].name.data, "upstream_http_", 14) == 0) { |
1388 v[i].get_handler = ngx_http_upstream_header_variable; | |
1389 v[i].data = (uintptr_t) &v[i].name; | |
1565 | 1390 v[i].flags = NGX_HTTP_VAR_NOCACHEABLE; |
1162 | 1391 |
1392 continue; | |
1393 } | |
1394 | |
509 | 1395 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, |
1396 "unknown \"%V\" variable", &v[i].name); | |
1397 | |
1398 return NGX_ERROR; | |
1399 | |
1400 next: | |
1401 continue; | |
1402 } | |
1403 | |
1404 | |
611 | 1405 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) { |
1406 av = key[n].value; | |
1407 | |
1408 if (av->flags & NGX_HTTP_VAR_NOHASH) { | |
1409 key[n].key.data = NULL; | |
583 | 1410 } |
1411 } | |
1412 | |
1413 | |
611 | 1414 hash.hash = &cmcf->variables_hash; |
1415 hash.key = ngx_hash_key; | |
1416 hash.max_size = cmcf->variables_hash_max_size; | |
1417 hash.bucket_size = cmcf->variables_hash_bucket_size; | |
1418 hash.name = "variables_hash"; | |
1419 hash.pool = cf->pool; | |
1420 hash.temp_pool = NULL; | |
509 | 1421 |
611 | 1422 if (ngx_hash_init(&hash, cmcf->variables_keys->keys.elts, |
1423 cmcf->variables_keys->keys.nelts) | |
581 | 1424 != NGX_OK) |
509 | 1425 { |
1426 return NGX_ERROR; | |
1427 } | |
1428 | |
611 | 1429 cmcf->variables_keys = NULL; |
509 | 1430 |
1431 return NGX_OK; | |
1432 } |