Mercurial > hg > nginx-quic
annotate src/http/ngx_http_variables.c @ 2246:987831d73bd8
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author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Fri, 12 Sep 2008 13:39:51 +0000 |
parents | f62751dab60d |
children | 852fe29e6446 |
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_http.h> | |
1329 | 10 #include <nginx.h> |
499 | 11 |
12 | |
573 | 13 static ngx_int_t ngx_http_variable_request(ngx_http_request_t *r, |
14 ngx_http_variable_value_t *v, uintptr_t data); | |
1350 | 15 static void ngx_http_variable_request_set(ngx_http_request_t *r, |
16 ngx_http_variable_value_t *v, uintptr_t data); | |
637 | 17 static void ngx_http_variable_request_set_size(ngx_http_request_t *r, |
18 ngx_http_variable_value_t *v, uintptr_t data); | |
573 | 19 static ngx_int_t ngx_http_variable_header(ngx_http_request_t *r, |
20 ngx_http_variable_value_t *v, uintptr_t data); | |
21 static ngx_int_t ngx_http_variable_headers(ngx_http_request_t *r, | |
22 ngx_http_variable_value_t *v, uintptr_t data); | |
577 | 23 |
24 static ngx_int_t ngx_http_variable_unknown_header_in(ngx_http_request_t *r, | |
573 | 25 ngx_http_variable_value_t *v, uintptr_t data); |
577 | 26 static ngx_int_t ngx_http_variable_unknown_header_out(ngx_http_request_t *r, |
27 ngx_http_variable_value_t *v, uintptr_t data); | |
2137 | 28 static ngx_int_t ngx_http_variable_argument(ngx_http_request_t *r, |
29 ngx_http_variable_value_t *v, uintptr_t data); | |
577 | 30 |
573 | 31 static ngx_int_t ngx_http_variable_host(ngx_http_request_t *r, |
32 ngx_http_variable_value_t *v, uintptr_t data); | |
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ngx_http_variable_binary_remote_addr()
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33 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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changeset
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34 ngx_http_variable_value_t *v, uintptr_t data); |
573 | 35 static ngx_int_t ngx_http_variable_remote_addr(ngx_http_request_t *r, |
36 ngx_http_variable_value_t *v, uintptr_t data); | |
37 static ngx_int_t ngx_http_variable_remote_port(ngx_http_request_t *r, | |
38 ngx_http_variable_value_t *v, uintptr_t data); | |
39 static ngx_int_t ngx_http_variable_server_addr(ngx_http_request_t *r, | |
40 ngx_http_variable_value_t *v, uintptr_t data); | |
41 static ngx_int_t ngx_http_variable_server_port(ngx_http_request_t *r, | |
42 ngx_http_variable_value_t *v, uintptr_t data); | |
731 | 43 static ngx_int_t ngx_http_variable_scheme(ngx_http_request_t *r, |
44 ngx_http_variable_value_t *v, uintptr_t data); | |
1351 | 45 static ngx_int_t ngx_http_variable_is_args(ngx_http_request_t *r, |
46 ngx_http_variable_value_t *v, uintptr_t data); | |
573 | 47 static ngx_int_t ngx_http_variable_document_root(ngx_http_request_t *r, |
48 ngx_http_variable_value_t *v, uintptr_t data); | |
49 static ngx_int_t ngx_http_variable_request_filename(ngx_http_request_t *r, | |
50 ngx_http_variable_value_t *v, uintptr_t data); | |
1811 | 51 static ngx_int_t ngx_http_variable_server_name(ngx_http_request_t *r, |
52 ngx_http_variable_value_t *v, uintptr_t data); | |
573 | 53 static ngx_int_t ngx_http_variable_request_method(ngx_http_request_t *r, |
54 ngx_http_variable_value_t *v, uintptr_t data); | |
55 static ngx_int_t ngx_http_variable_remote_user(ngx_http_request_t *r, | |
56 ngx_http_variable_value_t *v, uintptr_t data); | |
611 | 57 static ngx_int_t ngx_http_variable_body_bytes_sent(ngx_http_request_t *r, |
58 ngx_http_variable_value_t *v, uintptr_t data); | |
629 | 59 static ngx_int_t ngx_http_variable_request_completion(ngx_http_request_t *r, |
60 ngx_http_variable_value_t *v, uintptr_t data); | |
759 | 61 static ngx_int_t ngx_http_variable_request_body_file(ngx_http_request_t *r, |
62 ngx_http_variable_value_t *v, uintptr_t data); | |
499 | 63 |
641 | 64 static ngx_int_t ngx_http_variable_sent_content_type(ngx_http_request_t *r, |
65 ngx_http_variable_value_t *v, uintptr_t data); | |
66 static ngx_int_t ngx_http_variable_sent_content_length(ngx_http_request_t *r, | |
67 ngx_http_variable_value_t *v, uintptr_t data); | |
68 static ngx_int_t ngx_http_variable_sent_last_modified(ngx_http_request_t *r, | |
69 ngx_http_variable_value_t *v, uintptr_t data); | |
70 static ngx_int_t ngx_http_variable_sent_connection(ngx_http_request_t *r, | |
71 ngx_http_variable_value_t *v, uintptr_t data); | |
72 static ngx_int_t ngx_http_variable_sent_keep_alive(ngx_http_request_t *r, | |
73 ngx_http_variable_value_t *v, uintptr_t data); | |
74 static ngx_int_t ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r, | |
75 ngx_http_variable_value_t *v, uintptr_t data); | |
76 | |
1329 | 77 static ngx_int_t ngx_http_variable_nginx_version(ngx_http_request_t *r, |
78 ngx_http_variable_value_t *v, uintptr_t data); | |
2011 | 79 static ngx_int_t ngx_http_variable_hostname(ngx_http_request_t *r, |
80 ngx_http_variable_value_t *v, uintptr_t data); | |
499 | 81 |
509 | 82 /* |
83 * TODO: | |
84 * Apache CGI: AUTH_TYPE, PATH_INFO (null), PATH_TRANSLATED | |
85 * REMOTE_HOST (null), REMOTE_IDENT (null), | |
86 * SERVER_SOFTWARE | |
87 * | |
571 | 88 * Apache SSI: DOCUMENT_NAME, LAST_MODIFIED, USER_NAME (file owner) |
509 | 89 */ |
499 | 90 |
641 | 91 /* |
92 * the $http_host, $http_user_agent, $http_referer, $http_via, | |
93 * and $http_x_forwarded_for variables may be handled by generic | |
94 * ngx_http_variable_unknown_header_in(), but for perfomance reasons | |
95 * they are handled using dedicated entries | |
96 */ | |
97 | |
509 | 98 static ngx_http_variable_t ngx_http_core_variables[] = { |
99 | |
637 | 100 { ngx_string("http_host"), NULL, ngx_http_variable_header, |
533 | 101 offsetof(ngx_http_request_t, headers_in.host), 0, 0 }, |
499 | 102 |
637 | 103 { ngx_string("http_user_agent"), NULL, ngx_http_variable_header, |
533 | 104 offsetof(ngx_http_request_t, headers_in.user_agent), 0, 0 }, |
509 | 105 |
637 | 106 { ngx_string("http_referer"), NULL, ngx_http_variable_header, |
533 | 107 offsetof(ngx_http_request_t, headers_in.referer), 0, 0 }, |
499 | 108 |
109 #if (NGX_HTTP_GZIP) | |
637 | 110 { ngx_string("http_via"), NULL, ngx_http_variable_header, |
533 | 111 offsetof(ngx_http_request_t, headers_in.via), 0, 0 }, |
499 | 112 #endif |
113 | |
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114 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP) |
637 | 115 { ngx_string("http_x_forwarded_for"), NULL, ngx_http_variable_header, |
533 | 116 offsetof(ngx_http_request_t, headers_in.x_forwarded_for), 0, 0 }, |
499 | 117 #endif |
118 | |
637 | 119 { ngx_string("http_cookie"), NULL, ngx_http_variable_headers, |
533 | 120 offsetof(ngx_http_request_t, headers_in.cookies), 0, 0 }, |
515 | 121 |
637 | 122 { ngx_string("content_length"), NULL, ngx_http_variable_header, |
533 | 123 offsetof(ngx_http_request_t, headers_in.content_length), 0, 0 }, |
509 | 124 |
637 | 125 { ngx_string("content_type"), NULL, ngx_http_variable_header, |
533 | 126 offsetof(ngx_http_request_t, headers_in.content_type), 0, 0 }, |
509 | 127 |
637 | 128 { ngx_string("host"), NULL, ngx_http_variable_host, 0, 0, 0 }, |
509 | 129 |
982 | 130 { 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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changeset
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131 ngx_http_variable_binary_remote_addr, 0, 0, 0 }, |
982 | 132 |
637 | 133 { ngx_string("remote_addr"), NULL, ngx_http_variable_remote_addr, 0, 0, 0 }, |
499 | 134 |
637 | 135 { ngx_string("remote_port"), NULL, ngx_http_variable_remote_port, 0, 0, 0 }, |
509 | 136 |
637 | 137 { ngx_string("server_addr"), NULL, ngx_http_variable_server_addr, 0, 0, 0 }, |
509 | 138 |
637 | 139 { ngx_string("server_port"), NULL, ngx_http_variable_server_port, 0, 0, 0 }, |
509 | 140 |
637 | 141 { ngx_string("server_protocol"), NULL, ngx_http_variable_request, |
533 | 142 offsetof(ngx_http_request_t, http_protocol), 0, 0 }, |
509 | 143 |
731 | 144 { ngx_string("scheme"), NULL, ngx_http_variable_scheme, 0, 0, 0 }, |
145 | |
637 | 146 { ngx_string("request_uri"), NULL, ngx_http_variable_request, |
533 | 147 offsetof(ngx_http_request_t, unparsed_uri), 0, 0 }, |
499 | 148 |
637 | 149 { ngx_string("uri"), NULL, ngx_http_variable_request, |
150 offsetof(ngx_http_request_t, uri), | |
1565 | 151 NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
637 | 152 |
153 { ngx_string("document_uri"), NULL, ngx_http_variable_request, | |
573 | 154 offsetof(ngx_http_request_t, uri), |
1565 | 155 NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
573 | 156 |
637 | 157 { ngx_string("request"), NULL, ngx_http_variable_request, |
569 | 158 offsetof(ngx_http_request_t, request_line), 0, 0 }, |
159 | |
637 | 160 { ngx_string("document_root"), NULL, |
1565 | 161 ngx_http_variable_document_root, 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
509 | 162 |
637 | 163 { ngx_string("query_string"), NULL, ngx_http_variable_request, |
509 | 164 offsetof(ngx_http_request_t, args), |
1565 | 165 NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
499 | 166 |
1350 | 167 { ngx_string("args"), |
168 ngx_http_variable_request_set, | |
169 ngx_http_variable_request, | |
589 | 170 offsetof(ngx_http_request_t, args), |
1565 | 171 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
589 | 172 |
1351 | 173 { ngx_string("is_args"), NULL, ngx_http_variable_is_args, |
1565 | 174 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
1351 | 175 |
637 | 176 { ngx_string("request_filename"), NULL, |
177 ngx_http_variable_request_filename, 0, | |
1565 | 178 NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
509 | 179 |
1811 | 180 { ngx_string("server_name"), NULL, ngx_http_variable_server_name, 0, 0, 0 }, |
509 | 181 |
637 | 182 { ngx_string("request_method"), NULL, |
183 ngx_http_variable_request_method, 0, 0, 0 }, | |
509 | 184 |
637 | 185 { ngx_string("remote_user"), NULL, ngx_http_variable_remote_user, 0, 0, 0 }, |
509 | 186 |
637 | 187 { ngx_string("body_bytes_sent"), NULL, ngx_http_variable_body_bytes_sent, |
611 | 188 0, 0, 0 }, |
189 | |
637 | 190 { ngx_string("request_completion"), NULL, |
191 ngx_http_variable_request_completion, | |
629 | 192 0, 0, 0 }, |
193 | |
759 | 194 { ngx_string("request_body_file"), NULL, |
195 ngx_http_variable_request_body_file, | |
196 0, 0, 0 }, | |
197 | |
641 | 198 { ngx_string("sent_http_content_type"), NULL, |
199 ngx_http_variable_sent_content_type, 0, 0, 0 }, | |
200 | |
201 { ngx_string("sent_http_content_length"), NULL, | |
202 ngx_http_variable_sent_content_length, 0, 0, 0 }, | |
203 | |
204 { ngx_string("sent_http_last_modified"), NULL, | |
205 ngx_http_variable_sent_last_modified, 0, 0, 0 }, | |
206 | |
207 { ngx_string("sent_http_connection"), NULL, | |
208 ngx_http_variable_sent_connection, 0, 0, 0 }, | |
209 | |
210 { ngx_string("sent_http_keep_alive"), NULL, | |
211 ngx_http_variable_sent_keep_alive, 0, 0, 0 }, | |
212 | |
213 { ngx_string("sent_http_transfer_encoding"), NULL, | |
214 ngx_http_variable_sent_transfer_encoding, 0, 0, 0 }, | |
215 | |
216 { ngx_string("sent_http_cache_control"), NULL, ngx_http_variable_headers, | |
217 offsetof(ngx_http_request_t, headers_out.cache_control), 0, 0 }, | |
218 | |
637 | 219 { ngx_string("limit_rate"), ngx_http_variable_request_set_size, |
220 ngx_http_variable_request, | |
221 offsetof(ngx_http_request_t, limit_rate), | |
1565 | 222 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
637 | 223 |
1329 | 224 { ngx_string("nginx_version"), NULL, ngx_http_variable_nginx_version, |
225 0, 0, 0 }, | |
226 | |
2011 | 227 { ngx_string("hostname"), NULL, ngx_http_variable_hostname, |
228 0, 0, 0 }, | |
229 | |
637 | 230 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
499 | 231 }; |
232 | |
233 | |
577 | 234 ngx_http_variable_value_t ngx_http_variable_null_value = |
235 ngx_http_variable(""); | |
236 ngx_http_variable_value_t ngx_http_variable_true_value = | |
237 ngx_http_variable("1"); | |
238 | |
239 | |
499 | 240 ngx_http_variable_t * |
509 | 241 ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags) |
242 { | |
611 | 243 ngx_int_t rc; |
509 | 244 ngx_uint_t i; |
611 | 245 ngx_hash_key_t *key; |
509 | 246 ngx_http_variable_t *v; |
247 ngx_http_core_main_conf_t *cmcf; | |
248 | |
249 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
250 | |
611 | 251 key = cmcf->variables_keys->keys.elts; |
252 for (i = 0; i < cmcf->variables_keys->keys.nelts; i++) { | |
253 if (name->len != key[i].key.len | |
254 || ngx_strncasecmp(name->data, key[i].key.data, name->len) != 0) | |
509 | 255 { |
256 continue; | |
257 } | |
258 | |
611 | 259 v = key[i].value; |
260 | |
1565 | 261 if (!(v->flags & NGX_HTTP_VAR_CHANGEABLE)) { |
509 | 262 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
263 "the duplicate \"%V\" variable", name); | |
264 return NULL; | |
265 } | |
266 | |
611 | 267 return v; |
509 | 268 } |
269 | |
611 | 270 v = ngx_palloc(cf->pool, sizeof(ngx_http_variable_t)); |
509 | 271 if (v == NULL) { |
272 return NULL; | |
273 } | |
274 | |
275 v->name.len = name->len; | |
2049 | 276 v->name.data = ngx_pnalloc(cf->pool, name->len); |
509 | 277 if (v->name.data == NULL) { |
278 return NULL; | |
279 } | |
280 | |
2135 | 281 ngx_strlow(v->name.data, name->data, name->len); |
509 | 282 |
637 | 283 v->set_handler = NULL; |
284 v->get_handler = NULL; | |
509 | 285 v->data = 0; |
286 v->flags = flags; | |
533 | 287 v->index = 0; |
509 | 288 |
611 | 289 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, 0); |
290 | |
291 if (rc == NGX_ERROR) { | |
292 return NULL; | |
293 } | |
294 | |
295 if (rc == NGX_BUSY) { | |
296 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
297 "conflicting variable name \"%V\"", name); | |
298 return NULL; | |
299 } | |
300 | |
509 | 301 return v; |
302 } | |
303 | |
304 | |
305 ngx_int_t | |
306 ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name) | |
499 | 307 { |
501 | 308 ngx_uint_t i; |
309 ngx_http_variable_t *v; | |
499 | 310 ngx_http_core_main_conf_t *cmcf; |
311 | |
312 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
313 | |
501 | 314 v = cmcf->variables.elts; |
315 | |
316 if (v == NULL) { | |
499 | 317 if (ngx_array_init(&cmcf->variables, cf->pool, 4, |
318 sizeof(ngx_http_variable_t)) == NGX_ERROR) | |
319 { | |
509 | 320 return NGX_ERROR; |
499 | 321 } |
501 | 322 |
323 } else { | |
324 for (i = 0; i < cmcf->variables.nelts; i++) { | |
325 if (name->len != v[i].name.len | |
326 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0) | |
327 { | |
328 continue; | |
329 } | |
330 | |
509 | 331 return i; |
501 | 332 } |
499 | 333 } |
334 | |
501 | 335 v = ngx_array_push(&cmcf->variables); |
336 if (v == NULL) { | |
509 | 337 return NGX_ERROR; |
499 | 338 } |
339 | |
501 | 340 v->name.len = name->len; |
2049 | 341 v->name.data = ngx_pnalloc(cf->pool, name->len); |
501 | 342 if (v->name.data == NULL) { |
509 | 343 return NGX_ERROR; |
501 | 344 } |
499 | 345 |
2135 | 346 ngx_strlow(v->name.data, name->data, name->len); |
501 | 347 |
637 | 348 v->set_handler = NULL; |
349 v->get_handler = NULL; | |
501 | 350 v->data = 0; |
509 | 351 v->flags = 0; |
533 | 352 v->index = cmcf->variables.nelts - 1; |
501 | 353 |
509 | 354 return cmcf->variables.nelts - 1; |
499 | 355 } |
356 | |
357 | |
358 ngx_http_variable_value_t * | |
359 ngx_http_get_indexed_variable(ngx_http_request_t *r, ngx_uint_t index) | |
360 { | |
501 | 361 ngx_http_variable_t *v; |
499 | 362 ngx_http_core_main_conf_t *cmcf; |
363 | |
364 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
365 | |
553 | 366 if (cmcf->variables.nelts <= index) { |
499 | 367 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
368 "unknown variable index: %d", index); | |
369 return NULL; | |
370 } | |
371 | |
573 | 372 if (r->variables[index].not_found || r->variables[index].valid) { |
373 return &r->variables[index]; | |
501 | 374 } |
499 | 375 |
501 | 376 v = cmcf->variables.elts; |
499 | 377 |
637 | 378 if (v[index].get_handler(r, &r->variables[index], v[index].data) |
379 == NGX_OK) | |
380 { | |
1565 | 381 if (v[index].flags & NGX_HTTP_VAR_NOCACHEABLE) { |
382 r->variables[index].no_cacheable = 1; | |
499 | 383 } |
573 | 384 |
385 return &r->variables[index]; | |
499 | 386 } |
387 | |
657 | 388 r->variables[index].valid = 0; |
389 r->variables[index].not_found = 1; | |
390 | |
798 | 391 return NULL; |
573 | 392 } |
393 | |
394 | |
395 ngx_http_variable_value_t * | |
396 ngx_http_get_flushed_variable(ngx_http_request_t *r, ngx_uint_t index) | |
397 { | |
1150 | 398 ngx_http_variable_value_t *v; |
573 | 399 |
400 v = &r->variables[index]; | |
401 | |
402 if (v->valid) { | |
1565 | 403 if (!v->no_cacheable) { |
573 | 404 return v; |
405 } | |
406 | |
407 v->valid = 0; | |
408 v->not_found = 0; | |
509 | 409 } |
501 | 410 |
573 | 411 return ngx_http_get_indexed_variable(r, index); |
499 | 412 } |
413 | |
414 | |
415 ngx_http_variable_value_t * | |
635 | 416 ngx_http_get_variable(ngx_http_request_t *r, ngx_str_t *name, ngx_uint_t key, |
417 ngx_uint_t nowarn) | |
499 | 418 { |
501 | 419 ngx_http_variable_t *v; |
573 | 420 ngx_http_variable_value_t *vv; |
499 | 421 ngx_http_core_main_conf_t *cmcf; |
422 | |
423 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
424 | |
611 | 425 v = ngx_hash_find(&cmcf->variables_hash, key, name->data, name->len); |
499 | 426 |
611 | 427 if (v) { |
428 if (v->flags & NGX_HTTP_VAR_INDEXED) { | |
429 return ngx_http_get_indexed_variable(r, v->index); | |
519 | 430 |
431 } else { | |
499 | 432 |
573 | 433 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t)); |
501 | 434 |
637 | 435 if (vv && v->get_handler(r, vv, v->data) == NGX_OK) { |
573 | 436 return vv; |
437 } | |
509 | 438 |
573 | 439 return NULL; |
440 } | |
509 | 441 } |
442 | |
443 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t)); | |
444 if (vv == NULL) { | |
445 return NULL; | |
446 } | |
447 | |
573 | 448 if (ngx_strncmp(name->data, "http_", 5) == 0) { |
499 | 449 |
577 | 450 if (ngx_http_variable_unknown_header_in(r, vv, (uintptr_t) name) |
451 == NGX_OK) | |
452 { | |
453 return vv; | |
454 } | |
455 | |
456 return NULL; | |
457 } | |
458 | |
459 if (ngx_strncmp(name->data, "sent_http_", 10) == 0) { | |
460 | |
461 if (ngx_http_variable_unknown_header_out(r, vv, (uintptr_t) name) | |
462 == NGX_OK) | |
573 | 463 { |
464 return vv; | |
465 } | |
499 | 466 |
467 return NULL; | |
468 } | |
469 | |
1162 | 470 if (ngx_strncmp(name->data, "upstream_http_", 10) == 0) { |
471 | |
472 if (ngx_http_upstream_header_variable(r, vv, (uintptr_t) name) | |
473 == NGX_OK) | |
474 { | |
475 return vv; | |
476 } | |
477 | |
478 return NULL; | |
479 } | |
480 | |
2137 | 481 if (ngx_strncmp(name->data, "arg_", 4) == 0) { |
482 | |
483 if (ngx_http_variable_argument(r, vv, (uintptr_t) name) == NGX_OK) { | |
484 return vv; | |
485 } | |
486 | |
487 return NULL; | |
488 } | |
489 | |
635 | 490 vv->not_found = 1; |
573 | 491 |
635 | 492 if (nowarn == 0) { |
493 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
494 "unknown \"%V\" variable", name); | |
495 } | |
499 | 496 |
501 | 497 return vv; |
499 | 498 } |
499 | |
500 | |
573 | 501 static ngx_int_t |
502 ngx_http_variable_request(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
503 uintptr_t data) | |
504 { | |
505 ngx_str_t *s; | |
506 | |
507 s = (ngx_str_t *) ((char *) r + data); | |
508 | |
509 if (s->data) { | |
510 v->len = s->len; | |
511 v->valid = 1; | |
1565 | 512 v->no_cacheable = 0; |
573 | 513 v->not_found = 0; |
514 v->data = s->data; | |
515 | |
516 } else { | |
517 v->not_found = 1; | |
518 } | |
519 | |
520 return NGX_OK; | |
521 } | |
522 | |
523 | |
637 | 524 static void |
1350 | 525 ngx_http_variable_request_set(ngx_http_request_t *r, |
526 ngx_http_variable_value_t *v, uintptr_t data) | |
527 { | |
528 ngx_str_t *s; | |
529 | |
530 s = (ngx_str_t *) ((char *) r + data); | |
531 | |
532 s->len = v->len; | |
533 s->data = v->data; | |
534 } | |
535 | |
536 | |
537 static void | |
637 | 538 ngx_http_variable_request_set_size(ngx_http_request_t *r, |
539 ngx_http_variable_value_t *v, uintptr_t data) | |
540 { | |
541 ssize_t s, *sp; | |
542 ngx_str_t val; | |
543 | |
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544 val.len = v->len; |
637 | 545 val.data = v->data; |
546 | |
547 s = ngx_parse_size(&val); | |
548 | |
549 if (s == NGX_ERROR) { | |
550 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
551 "invalid size \"%V\"", &val); | |
552 return; | |
553 } | |
554 | |
555 sp = (ssize_t *) ((char *) r + data); | |
556 | |
557 *sp = s; | |
558 | |
559 return; | |
560 } | |
561 | |
562 | |
573 | 563 static ngx_int_t |
564 ngx_http_variable_header(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
565 uintptr_t data) | |
515 | 566 { |
573 | 567 ngx_table_elt_t *h; |
568 | |
569 h = *(ngx_table_elt_t **) ((char *) r + data); | |
570 | |
571 if (h) { | |
572 v->len = h->value.len; | |
573 v->valid = 1; | |
1565 | 574 v->no_cacheable = 0; |
573 | 575 v->not_found = 0; |
576 v->data = h->value.data; | |
577 | |
578 } else { | |
579 v->not_found = 1; | |
580 } | |
581 | |
582 return NGX_OK; | |
583 } | |
584 | |
585 | |
586 static ngx_int_t | |
587 ngx_http_variable_headers(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
588 uintptr_t data) | |
589 { | |
667 | 590 ssize_t len; |
573 | 591 u_char *p; |
667 | 592 ngx_uint_t i, n; |
573 | 593 ngx_array_t *a; |
594 ngx_table_elt_t **h; | |
515 | 595 |
596 a = (ngx_array_t *) ((char *) r + data); | |
597 | |
667 | 598 n = a->nelts; |
599 | |
600 if (n == 0) { | |
573 | 601 v->not_found = 1; |
602 return NGX_OK; | |
515 | 603 } |
604 | |
573 | 605 v->valid = 1; |
1565 | 606 v->no_cacheable = 0; |
573 | 607 v->not_found = 0; |
515 | 608 |
609 h = a->elts; | |
610 | |
667 | 611 if (n == 1) { |
573 | 612 v->len = (*h)->value.len; |
613 v->data = (*h)->value.data; | |
515 | 614 |
573 | 615 return NGX_OK; |
515 | 616 } |
617 | |
667 | 618 len = - (ssize_t) (sizeof("; ") - 1); |
573 | 619 |
667 | 620 for (i = 0; i < n; i++) { |
573 | 621 len += h[i]->value.len + sizeof("; ") - 1; |
515 | 622 } |
623 | |
2049 | 624 p = ngx_pnalloc(r->pool, len); |
573 | 625 if (p == NULL) { |
626 return NGX_ERROR; | |
627 } | |
628 | |
629 v->len = len; | |
630 v->data = p; | |
515 | 631 |
632 for (i = 0; /* void */ ; i++) { | |
573 | 633 p = ngx_copy(p, h[i]->value.data, h[i]->value.len); |
515 | 634 |
667 | 635 if (i == n - 1) { |
515 | 636 break; |
637 } | |
638 | |
639 *p++ = ';'; *p++ = ' '; | |
640 } | |
641 | |
573 | 642 return NGX_OK; |
515 | 643 } |
644 | |
645 | |
573 | 646 static ngx_int_t |
577 | 647 ngx_http_variable_unknown_header_in(ngx_http_request_t *r, |
648 ngx_http_variable_value_t *v, uintptr_t data) | |
649 { | |
650 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, | |
651 &r->headers_in.headers.part, | |
652 sizeof("http_") - 1); | |
653 } | |
654 | |
655 | |
656 static ngx_int_t | |
657 ngx_http_variable_unknown_header_out(ngx_http_request_t *r, | |
573 | 658 ngx_http_variable_value_t *v, uintptr_t data) |
499 | 659 { |
577 | 660 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, |
661 &r->headers_out.headers.part, | |
662 sizeof("sent_http_") - 1); | |
663 } | |
501 | 664 |
577 | 665 |
1162 | 666 ngx_int_t |
577 | 667 ngx_http_variable_unknown_header(ngx_http_variable_value_t *v, ngx_str_t *var, |
668 ngx_list_part_t *part, size_t prefix) | |
669 { | |
573 | 670 u_char ch; |
671 ngx_uint_t i, n; | |
672 ngx_table_elt_t *header; | |
499 | 673 |
674 header = part->elts; | |
675 | |
676 for (i = 0; /* void */ ; i++) { | |
677 | |
678 if (i >= part->nelts) { | |
679 if (part->next == NULL) { | |
680 break; | |
681 } | |
682 | |
683 part = part->next; | |
684 header = part->elts; | |
685 i = 0; | |
686 } | |
687 | |
577 | 688 for (n = 0; n + prefix < var->len && n < header[i].key.len; n++) { |
499 | 689 ch = header[i].key.data[n]; |
690 | |
509 | 691 if (ch >= 'A' && ch <= 'Z') { |
692 ch |= 0x20; | |
499 | 693 |
694 } else if (ch == '-') { | |
695 ch = '_'; | |
696 } | |
697 | |
577 | 698 if (var->data[n + prefix] != ch) { |
499 | 699 break; |
700 } | |
701 } | |
702 | |
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703 if (n + prefix == var->len && n == header[i].key.len) { |
573 | 704 v->len = header[i].value.len; |
705 v->valid = 1; | |
1565 | 706 v->no_cacheable = 0; |
573 | 707 v->not_found = 0; |
708 v->data = header[i].value.data; | |
499 | 709 |
573 | 710 return NGX_OK; |
499 | 711 } |
712 } | |
713 | |
573 | 714 v->not_found = 1; |
715 | |
716 return NGX_OK; | |
509 | 717 } |
718 | |
719 | |
573 | 720 static ngx_int_t |
2137 | 721 ngx_http_variable_argument(ngx_http_request_t *r, ngx_http_variable_value_t *v, |
722 uintptr_t data) | |
723 { | |
724 ngx_str_t *name = (ngx_str_t *) data; | |
725 | |
726 u_char *p, *arg; | |
727 size_t len; | |
728 | |
729 if (r->args.len == 0) { | |
730 v->not_found = 1; | |
731 return NGX_OK; | |
732 } | |
733 | |
734 len = name->len - 1 - (sizeof("arg_") - 1); | |
735 arg = name->data + sizeof("arg_") - 1; | |
736 | |
737 for (p = r->args.data; *p && *p != ' '; p++) { | |
738 | |
739 /* | |
740 * although r->args.data is not null-terminated by itself, | |
741 * however, there is null in the end of request line | |
742 */ | |
743 | |
744 p = ngx_strcasestrn(p, (char *) arg, len); | |
745 | |
746 if (p == NULL) { | |
747 v->not_found = 1; | |
748 return NGX_OK; | |
749 } | |
750 | |
751 if ((p == r->args.data || *(p - 1) == '&') && *(p + len + 1) == '=') { | |
752 | |
753 v->data = p + len + 2; | |
754 | |
755 p = (u_char *) ngx_strchr(p, '&'); | |
756 | |
757 if (p == NULL) { | |
758 p = r->args.data + r->args.len; | |
759 } | |
760 | |
761 v->len = p - v->data; | |
762 v->valid = 1; | |
763 v->no_cacheable = 0; | |
764 v->not_found = 0; | |
765 | |
766 return NGX_OK; | |
767 } | |
768 } | |
769 | |
770 v->not_found = 1; | |
771 | |
772 return NGX_OK; | |
773 } | |
774 | |
775 | |
776 static ngx_int_t | |
573 | 777 ngx_http_variable_host(ngx_http_request_t *r, ngx_http_variable_value_t *v, |
778 uintptr_t data) | |
509 | 779 { |
1811 | 780 ngx_http_core_srv_conf_t *cscf; |
781 | |
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782 if (r->headers_in.server.len) { |
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783 v->len = r->headers_in.server.len; |
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784 v->data = r->headers_in.server.data; |
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785 |
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786 } else { |
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787 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); |
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788 |
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789 v->len = cscf->server_name.len; |
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790 v->data = cscf->server_name.data; |
509 | 791 } |
792 | |
573 | 793 v->valid = 1; |
1565 | 794 v->no_cacheable = 0; |
573 | 795 v->not_found = 0; |
509 | 796 |
573 | 797 return NGX_OK; |
499 | 798 } |
799 | |
800 | |
573 | 801 static ngx_int_t |
983
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802 ngx_http_variable_binary_remote_addr(ngx_http_request_t *r, |
573 | 803 ngx_http_variable_value_t *v, uintptr_t data) |
499 | 804 { |
982 | 805 struct sockaddr_in *sin; |
806 | |
983
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807 /* AF_INET only */ |
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808 |
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809 sin = (struct sockaddr_in *) r->connection->sockaddr; |
982 | 810 |
983
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811 v->len = sizeof(in_addr_t); |
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812 v->valid = 1; |
1565 | 813 v->no_cacheable = 0; |
983
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814 v->not_found = 0; |
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815 v->data = (u_char *) &sin->sin_addr.s_addr; |
982 | 816 |
983
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817 return NGX_OK; |
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818 } |
982 | 819 |
820 | |
983
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821 static ngx_int_t |
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822 ngx_http_variable_remote_addr(ngx_http_request_t *r, |
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823 ngx_http_variable_value_t *v, uintptr_t data) |
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824 { |
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825 v->len = r->connection->addr_text.len; |
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826 v->valid = 1; |
1565 | 827 v->no_cacheable = 0; |
983
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828 v->not_found = 0; |
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829 v->data = r->connection->addr_text.data; |
499 | 830 |
573 | 831 return NGX_OK; |
499 | 832 } |
833 | |
834 | |
573 | 835 static ngx_int_t |
836 ngx_http_variable_remote_port(ngx_http_request_t *r, | |
837 ngx_http_variable_value_t *v, uintptr_t data) | |
499 | 838 { |
573 | 839 ngx_uint_t port; |
840 struct sockaddr_in *sin; | |
509 | 841 |
573 | 842 v->len = 0; |
843 v->valid = 1; | |
1565 | 844 v->no_cacheable = 0; |
573 | 845 v->not_found = 0; |
509 | 846 |
2049 | 847 v->data = ngx_pnalloc(r->pool, sizeof("65535") - 1); |
573 | 848 if (v->data == NULL) { |
849 return NGX_ERROR; | |
509 | 850 } |
851 | |
852 /* AF_INET only */ | |
577 | 853 |
509 | 854 if (r->connection->sockaddr->sa_family == AF_INET) { |
855 sin = (struct sockaddr_in *) r->connection->sockaddr; | |
577 | 856 |
509 | 857 port = ntohs(sin->sin_port); |
577 | 858 |
509 | 859 if (port > 0 && port < 65536) { |
573 | 860 v->len = ngx_sprintf(v->data, "%ui", port) - v->data; |
509 | 861 } |
862 } | |
863 | |
573 | 864 return NGX_OK; |
509 | 865 } |
866 | |
867 | |
573 | 868 static ngx_int_t |
869 ngx_http_variable_server_addr(ngx_http_request_t *r, | |
870 ngx_http_variable_value_t *v, uintptr_t data) | |
509 | 871 { |
1805 | 872 ngx_str_t s; |
499 | 873 |
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874 s.data = ngx_pnalloc(r->pool, NGX_INET_ADDRSTRLEN); |
1805 | 875 if (s.data == NULL) { |
573 | 876 return NGX_ERROR; |
509 | 877 } |
878 | |
1805 | 879 if (ngx_http_server_addr(r, &s) != NGX_OK) { |
880 return NGX_ERROR; | |
509 | 881 } |
882 | |
1805 | 883 v->len = s.len; |
573 | 884 v->valid = 1; |
1565 | 885 v->no_cacheable = 0; |
573 | 886 v->not_found = 0; |
1805 | 887 v->data = s.data; |
499 | 888 |
573 | 889 return NGX_OK; |
499 | 890 } |
891 | |
892 | |
573 | 893 static ngx_int_t |
894 ngx_http_variable_server_port(ngx_http_request_t *r, | |
895 ngx_http_variable_value_t *v, uintptr_t data) | |
509 | 896 { |
573 | 897 v->len = r->port_text->len - 1; |
898 v->valid = 1; | |
1565 | 899 v->no_cacheable = 0; |
573 | 900 v->not_found = 0; |
901 v->data = r->port_text->data + 1; | |
509 | 902 |
573 | 903 return NGX_OK; |
509 | 904 } |
905 | |
906 | |
573 | 907 static ngx_int_t |
731 | 908 ngx_http_variable_scheme(ngx_http_request_t *r, |
909 ngx_http_variable_value_t *v, uintptr_t data) | |
910 { | |
911 #if (NGX_HTTP_SSL) | |
912 | |
913 if (r->connection->ssl) { | |
914 v->len = sizeof("https") - 1; | |
915 v->valid = 1; | |
1565 | 916 v->no_cacheable = 0; |
731 | 917 v->not_found = 0; |
732 | 918 v->data = (u_char *) "https"; |
731 | 919 |
920 return NGX_OK; | |
921 } | |
922 | |
923 #endif | |
924 | |
925 v->len = sizeof("http") - 1; | |
926 v->valid = 1; | |
1565 | 927 v->no_cacheable = 0; |
731 | 928 v->not_found = 0; |
732 | 929 v->data = (u_char *) "http"; |
731 | 930 |
931 return NGX_OK; | |
932 } | |
933 | |
934 | |
935 static ngx_int_t | |
1351 | 936 ngx_http_variable_is_args(ngx_http_request_t *r, |
937 ngx_http_variable_value_t *v, uintptr_t data) | |
938 { | |
939 v->valid = 1; | |
1565 | 940 v->no_cacheable = 0; |
1351 | 941 v->not_found = 0; |
942 | |
943 if (r->args.len == 0) { | |
944 v->len = 0; | |
945 v->data = NULL; | |
946 return NGX_OK; | |
947 } | |
948 | |
949 v->len = 1; | |
950 v->data = (u_char *) "?"; | |
951 | |
952 return NGX_OK; | |
953 } | |
954 | |
955 | |
956 static ngx_int_t | |
573 | 957 ngx_http_variable_document_root(ngx_http_request_t *r, |
958 ngx_http_variable_value_t *v, uintptr_t data) | |
499 | 959 { |
671 | 960 ngx_str_t path; |
573 | 961 ngx_http_core_loc_conf_t *clcf; |
509 | 962 |
963 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
964 | |
671 | 965 if (clcf->root_lengths == NULL) { |
966 v->len = clcf->root.len; | |
967 v->valid = 1; | |
1565 | 968 v->no_cacheable = 0; |
671 | 969 v->not_found = 0; |
970 v->data = clcf->root.data; | |
971 | |
972 } else { | |
973 if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 0, | |
974 clcf->root_values->elts) | |
975 == NULL) | |
976 { | |
977 return NGX_ERROR; | |
978 } | |
979 | |
1352 | 980 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0) |
981 == NGX_ERROR) | |
982 { | |
671 | 983 return NGX_ERROR; |
984 } | |
985 | |
986 v->len = path.len; | |
987 v->valid = 1; | |
1565 | 988 v->no_cacheable = 0; |
671 | 989 v->not_found = 0; |
990 v->data = path.data; | |
991 } | |
509 | 992 |
573 | 993 return NGX_OK; |
509 | 994 } |
995 | |
996 | |
573 | 997 static ngx_int_t |
998 ngx_http_variable_request_filename(ngx_http_request_t *r, | |
999 ngx_http_variable_value_t *v, uintptr_t data) | |
509 | 1000 { |
773 | 1001 size_t root; |
573 | 1002 ngx_str_t path; |
499 | 1003 |
773 | 1004 if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) { |
573 | 1005 return NGX_ERROR; |
557 | 1006 } |
509 | 1007 |
557 | 1008 /* ngx_http_map_uri_to_path() allocates memory for terminating '\0' */ |
509 | 1009 |
573 | 1010 v->len = path.len - 1; |
1011 v->valid = 1; | |
1565 | 1012 v->no_cacheable = 0; |
573 | 1013 v->not_found = 0; |
1014 v->data = path.data; | |
499 | 1015 |
573 | 1016 return NGX_OK; |
499 | 1017 } |
1018 | |
1019 | |
573 | 1020 static ngx_int_t |
1811 | 1021 ngx_http_variable_server_name(ngx_http_request_t *r, |
1022 ngx_http_variable_value_t *v, uintptr_t data) | |
1023 { | |
1024 ngx_http_core_srv_conf_t *cscf; | |
1025 | |
1026 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); | |
1027 | |
1028 v->len = cscf->server_name.len; | |
1029 v->valid = 1; | |
1030 v->no_cacheable = 0; | |
1031 v->not_found = 0; | |
1032 v->data = cscf->server_name.data; | |
1033 | |
1034 return NGX_OK; | |
1035 } | |
1036 | |
1037 | |
1038 static ngx_int_t | |
573 | 1039 ngx_http_variable_request_method(ngx_http_request_t *r, |
1040 ngx_http_variable_value_t *v, uintptr_t data) | |
561 | 1041 { |
647 | 1042 if (r->main->method_name.data) { |
1043 v->len = r->main->method_name.len; | |
573 | 1044 v->valid = 1; |
1565 | 1045 v->no_cacheable = 0; |
573 | 1046 v->not_found = 0; |
647 | 1047 v->data = r->main->method_name.data; |
573 | 1048 |
1049 } else { | |
1050 v->not_found = 1; | |
561 | 1051 } |
1052 | |
573 | 1053 return NGX_OK; |
561 | 1054 } |
1055 | |
1056 | |
573 | 1057 static ngx_int_t |
1058 ngx_http_variable_remote_user(ngx_http_request_t *r, | |
1059 ngx_http_variable_value_t *v, uintptr_t data) | |
539 | 1060 { |
573 | 1061 ngx_int_t rc; |
539 | 1062 |
1063 rc = ngx_http_auth_basic_user(r); | |
1064 | |
1065 if (rc == NGX_DECLINED) { | |
573 | 1066 v->not_found = 1; |
1067 return NGX_OK; | |
539 | 1068 } |
1069 | |
1070 if (rc == NGX_ERROR) { | |
573 | 1071 return NGX_ERROR; |
539 | 1072 } |
1073 | |
573 | 1074 v->len = r->headers_in.user.len; |
1075 v->valid = 1; | |
1565 | 1076 v->no_cacheable = 0; |
573 | 1077 v->not_found = 0; |
1078 v->data = r->headers_in.user.data; | |
571 | 1079 |
573 | 1080 return NGX_OK; |
571 | 1081 } |
1082 | |
1083 | |
611 | 1084 static ngx_int_t |
1085 ngx_http_variable_body_bytes_sent(ngx_http_request_t *r, | |
1086 ngx_http_variable_value_t *v, uintptr_t data) | |
1087 { | |
1088 off_t sent; | |
1089 u_char *p; | |
1090 | |
1091 sent = r->connection->sent - r->header_size; | |
1092 | |
1093 if (sent < 0) { | |
1094 sent = 0; | |
1095 } | |
1096 | |
2049 | 1097 p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN); |
611 | 1098 if (p == NULL) { |
1099 return NGX_ERROR; | |
1100 } | |
1101 | |
1102 v->len = ngx_sprintf(p, "%O", sent) - p; | |
1103 v->valid = 1; | |
1565 | 1104 v->no_cacheable = 0; |
611 | 1105 v->not_found = 0; |
1106 v->data = p; | |
1107 | |
1108 return NGX_OK; | |
1109 } | |
1110 | |
1111 | |
629 | 1112 static ngx_int_t |
641 | 1113 ngx_http_variable_sent_content_type(ngx_http_request_t *r, |
1114 ngx_http_variable_value_t *v, uintptr_t data) | |
1115 { | |
1116 if (r->headers_out.content_type.len) { | |
1117 v->len = r->headers_out.content_type.len; | |
1118 v->valid = 1; | |
1565 | 1119 v->no_cacheable = 0; |
641 | 1120 v->not_found = 0; |
1121 v->data = r->headers_out.content_type.data; | |
1122 | |
1123 } else { | |
1124 v->not_found = 1; | |
1125 } | |
1126 | |
1127 return NGX_OK; | |
1128 } | |
1129 | |
1130 | |
1131 static ngx_int_t | |
1132 ngx_http_variable_sent_content_length(ngx_http_request_t *r, | |
1133 ngx_http_variable_value_t *v, uintptr_t data) | |
1134 { | |
1135 u_char *p; | |
1136 | |
1137 if (r->headers_out.content_length) { | |
1138 v->len = r->headers_out.content_length->value.len; | |
1139 v->valid = 1; | |
1565 | 1140 v->no_cacheable = 0; |
641 | 1141 v->not_found = 0; |
1142 v->data = r->headers_out.content_length->value.data; | |
1143 | |
1144 return NGX_OK; | |
1145 } | |
1146 | |
1147 if (r->headers_out.content_length_n >= 0) { | |
2049 | 1148 p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN); |
641 | 1149 if (p == NULL) { |
1150 return NGX_ERROR; | |
1151 } | |
1152 | |
1153 v->len = ngx_sprintf(p, "%O", r->headers_out.content_length_n) - p; | |
1154 v->valid = 1; | |
1565 | 1155 v->no_cacheable = 0; |
641 | 1156 v->not_found = 0; |
1157 v->data = p; | |
1158 | |
1159 return NGX_OK; | |
1160 } | |
1161 | |
1162 v->not_found = 1; | |
1163 | |
1164 return NGX_OK; | |
1165 } | |
1166 | |
1167 | |
1168 static ngx_int_t | |
1169 ngx_http_variable_sent_last_modified(ngx_http_request_t *r, | |
1170 ngx_http_variable_value_t *v, uintptr_t data) | |
1171 { | |
1172 u_char *p; | |
1173 | |
1174 if (r->headers_out.last_modified) { | |
1175 v->len = r->headers_out.last_modified->value.len; | |
1176 v->valid = 1; | |
1565 | 1177 v->no_cacheable = 0; |
641 | 1178 v->not_found = 0; |
1179 v->data = r->headers_out.last_modified->value.data; | |
1180 | |
1181 return NGX_OK; | |
1182 } | |
1183 | |
1184 if (r->headers_out.last_modified_time >= 0) { | |
2049 | 1185 p = ngx_pnalloc(r->pool, |
641 | 1186 sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT") - 1); |
1187 if (p == NULL) { | |
1188 return NGX_ERROR; | |
1189 } | |
1190 | |
1191 v->len = ngx_http_time(p, r->headers_out.last_modified_time) - p; | |
1192 v->valid = 1; | |
1565 | 1193 v->no_cacheable = 0; |
641 | 1194 v->not_found = 0; |
1195 v->data = p; | |
1196 | |
1197 return NGX_OK; | |
1198 } | |
1199 | |
1200 v->not_found = 1; | |
1201 | |
1202 return NGX_OK; | |
1203 } | |
1204 | |
1205 | |
1206 static ngx_int_t | |
1207 ngx_http_variable_sent_connection(ngx_http_request_t *r, | |
1208 ngx_http_variable_value_t *v, uintptr_t data) | |
1209 { | |
1210 size_t len; | |
1211 char *p; | |
1212 | |
1213 if (r->keepalive) { | |
1214 len = sizeof("keep-alive") - 1; | |
1215 p = "keep-alive"; | |
1216 | |
1217 } else { | |
1218 len = sizeof("close") - 1; | |
1219 p = "close"; | |
1220 } | |
1221 | |
1222 v->len = len; | |
1223 v->valid = 1; | |
1565 | 1224 v->no_cacheable = 0; |
641 | 1225 v->not_found = 0; |
1226 v->data = (u_char *) p; | |
1227 | |
1228 return NGX_OK; | |
1229 } | |
1230 | |
1231 | |
1232 static ngx_int_t | |
1233 ngx_http_variable_sent_keep_alive(ngx_http_request_t *r, | |
1234 ngx_http_variable_value_t *v, uintptr_t data) | |
1235 { | |
1236 u_char *p; | |
1237 ngx_http_core_loc_conf_t *clcf; | |
1238 | |
1239 if (r->keepalive) { | |
1240 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
1241 | |
1242 if (clcf->keepalive_header) { | |
1243 | |
2049 | 1244 p = ngx_pnalloc(r->pool, sizeof("timeout=") - 1 + NGX_TIME_T_LEN); |
641 | 1245 if (p == NULL) { |
1246 return NGX_ERROR; | |
1247 } | |
1248 | |
1249 v->len = ngx_sprintf(p, "timeout=%T", clcf->keepalive_header) - p; | |
1250 v->valid = 1; | |
1565 | 1251 v->no_cacheable = 0; |
641 | 1252 v->not_found = 0; |
1253 v->data = p; | |
1254 | |
1255 return NGX_OK; | |
1256 } | |
1257 } | |
1258 | |
1259 v->not_found = 1; | |
1260 | |
1261 return NGX_OK; | |
1262 } | |
1263 | |
1264 | |
1265 static ngx_int_t | |
1266 ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r, | |
1267 ngx_http_variable_value_t *v, uintptr_t data) | |
1268 { | |
1269 if (r->chunked) { | |
1270 v->len = sizeof("chunked") - 1; | |
1271 v->valid = 1; | |
1565 | 1272 v->no_cacheable = 0; |
641 | 1273 v->not_found = 0; |
1274 v->data = (u_char *) "chunked"; | |
1275 | |
1276 } else { | |
1277 v->not_found = 1; | |
1278 } | |
1279 | |
1280 return NGX_OK; | |
1281 } | |
1282 | |
1283 | |
1284 static ngx_int_t | |
629 | 1285 ngx_http_variable_request_completion(ngx_http_request_t *r, |
1286 ngx_http_variable_value_t *v, uintptr_t data) | |
1287 { | |
1288 if (r->request_complete) { | |
1289 v->len = 2; | |
1290 v->valid = 1; | |
1565 | 1291 v->no_cacheable = 0; |
629 | 1292 v->not_found = 0; |
1293 v->data = (u_char *) "OK"; | |
1294 | |
1295 return NGX_OK; | |
1296 } | |
1297 | |
1298 v->len = 0; | |
1299 v->valid = 1; | |
1565 | 1300 v->no_cacheable = 0; |
629 | 1301 v->not_found = 0; |
1302 v->data = (u_char *) ""; | |
1303 | |
1304 return NGX_OK; | |
1305 } | |
1306 | |
1307 | |
759 | 1308 static ngx_int_t |
1309 ngx_http_variable_request_body_file(ngx_http_request_t *r, | |
1310 ngx_http_variable_value_t *v, uintptr_t data) | |
1311 { | |
1312 if (r->request_body == NULL || r->request_body->temp_file == NULL) { | |
763
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|
1313 v->not_found = 1; |
759 | 1314 |
1315 return NGX_OK; | |
1316 } | |
1317 | |
1318 v->len = r->request_body->temp_file->file.name.len; | |
1319 v->valid = 1; | |
1565 | 1320 v->no_cacheable = 0; |
759 | 1321 v->not_found = 0; |
1322 v->data = r->request_body->temp_file->file.name.data; | |
1323 | |
1324 return NGX_OK; | |
1325 } | |
1326 | |
1327 | |
1329 | 1328 static ngx_int_t |
1329 ngx_http_variable_nginx_version(ngx_http_request_t *r, | |
1330 ngx_http_variable_value_t *v, uintptr_t data) | |
1331 { | |
1332 v->len = sizeof(NGINX_VERSION) - 1; | |
1333 v->valid = 1; | |
1565 | 1334 v->no_cacheable = 0; |
1329 | 1335 v->not_found = 0; |
1336 v->data = (u_char *) NGINX_VERSION; | |
1337 | |
1338 return NGX_OK; | |
1339 } | |
1340 | |
1341 | |
2011 | 1342 static ngx_int_t |
1343 ngx_http_variable_hostname(ngx_http_request_t *r, | |
1344 ngx_http_variable_value_t *v, uintptr_t data) | |
1345 { | |
1346 v->len = ngx_cycle->hostname.len; | |
1347 v->valid = 1; | |
1348 v->no_cacheable = 0; | |
1349 v->not_found = 0; | |
1350 v->data = ngx_cycle->hostname.data; | |
1351 | |
1352 return NGX_OK; | |
1353 } | |
1354 | |
1355 | |
499 | 1356 ngx_int_t |
509 | 1357 ngx_http_variables_add_core_vars(ngx_conf_t *cf) |
499 | 1358 { |
611 | 1359 ngx_int_t rc; |
1360 ngx_http_variable_t *v; | |
501 | 1361 ngx_http_core_main_conf_t *cmcf; |
499 | 1362 |
509 | 1363 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); |
1364 | |
611 | 1365 cmcf->variables_keys = ngx_pcalloc(cf->temp_pool, |
1366 sizeof(ngx_hash_keys_arrays_t)); | |
1367 if (cmcf->variables_keys == NULL) { | |
1368 return NGX_ERROR; | |
1369 } | |
1370 | |
1371 cmcf->variables_keys->pool = cf->pool; | |
1372 cmcf->variables_keys->temp_pool = cf->pool; | |
1373 | |
1374 if (ngx_hash_keys_array_init(cmcf->variables_keys, NGX_HASH_SMALL) | |
1375 != NGX_OK) | |
509 | 1376 { |
499 | 1377 return NGX_ERROR; |
1378 } | |
1379 | |
611 | 1380 for (v = ngx_http_core_variables; v->name.len; v++) { |
1381 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, | |
1382 NGX_HASH_READONLY_KEY); | |
1383 | |
1384 if (rc == NGX_OK) { | |
1385 continue; | |
499 | 1386 } |
1387 | |
611 | 1388 if (rc == NGX_BUSY) { |
1389 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1390 "conflicting variable name \"%V\"", &v->name); | |
1391 } | |
1392 | |
1393 return NGX_ERROR; | |
499 | 1394 } |
1395 | |
1396 return NGX_OK; | |
1397 } | |
509 | 1398 |
1399 | |
1400 ngx_int_t | |
1401 ngx_http_variables_init_vars(ngx_conf_t *cf) | |
1402 { | |
1403 ngx_uint_t i, n; | |
611 | 1404 ngx_hash_key_t *key; |
1405 ngx_hash_init_t hash; | |
509 | 1406 ngx_http_variable_t *v, *av; |
1407 ngx_http_core_main_conf_t *cmcf; | |
1408 | |
1409 /* set the handlers for the indexed http variables */ | |
1410 | |
1411 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
1412 | |
1413 v = cmcf->variables.elts; | |
611 | 1414 key = cmcf->variables_keys->keys.elts; |
509 | 1415 |
1416 for (i = 0; i < cmcf->variables.nelts; i++) { | |
1417 | |
611 | 1418 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) { |
509 | 1419 |
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1420 av = key[n].value; |
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|
1421 |
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1422 if (av->get_handler |
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|
1423 && v[i].name.len == key[n].key.len |
611 | 1424 && ngx_strncmp(v[i].name.data, key[n].key.data, v[i].name.len) |
509 | 1425 == 0) |
1426 { | |
637 | 1427 v[i].get_handler = av->get_handler; |
611 | 1428 v[i].data = av->data; |
527 | 1429 |
611 | 1430 av->flags |= NGX_HTTP_VAR_INDEXED; |
1431 v[i].flags = av->flags; | |
509 | 1432 |
611 | 1433 av->index = i; |
533 | 1434 |
509 | 1435 goto next; |
1436 } | |
1437 } | |
1438 | |
1439 if (ngx_strncmp(v[i].name.data, "http_", 5) == 0) { | |
637 | 1440 v[i].get_handler = ngx_http_variable_unknown_header_in; |
577 | 1441 v[i].data = (uintptr_t) &v[i].name; |
1442 | |
1443 continue; | |
1444 } | |
1445 | |
1446 if (ngx_strncmp(v[i].name.data, "sent_http_", 10) == 0) { | |
637 | 1447 v[i].get_handler = ngx_http_variable_unknown_header_out; |
509 | 1448 v[i].data = (uintptr_t) &v[i].name; |
1449 | |
1450 continue; | |
1451 } | |
1452 | |
1162 | 1453 if (ngx_strncmp(v[i].name.data, "upstream_http_", 14) == 0) { |
1454 v[i].get_handler = ngx_http_upstream_header_variable; | |
1455 v[i].data = (uintptr_t) &v[i].name; | |
1565 | 1456 v[i].flags = NGX_HTTP_VAR_NOCACHEABLE; |
1162 | 1457 |
1458 continue; | |
1459 } | |
1460 | |
2137 | 1461 if (ngx_strncmp(v[i].name.data, "arg_", 4) == 0) { |
1462 v[i].get_handler = ngx_http_variable_argument; | |
1463 v[i].data = (uintptr_t) &v[i].name; | |
1464 | |
1465 continue; | |
1466 } | |
1467 | |
509 | 1468 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, |
1469 "unknown \"%V\" variable", &v[i].name); | |
1470 | |
1471 return NGX_ERROR; | |
1472 | |
1473 next: | |
1474 continue; | |
1475 } | |
1476 | |
1477 | |
611 | 1478 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) { |
1479 av = key[n].value; | |
1480 | |
1481 if (av->flags & NGX_HTTP_VAR_NOHASH) { | |
1482 key[n].key.data = NULL; | |
583 | 1483 } |
1484 } | |
1485 | |
1486 | |
611 | 1487 hash.hash = &cmcf->variables_hash; |
1488 hash.key = ngx_hash_key; | |
1489 hash.max_size = cmcf->variables_hash_max_size; | |
1490 hash.bucket_size = cmcf->variables_hash_bucket_size; | |
1491 hash.name = "variables_hash"; | |
1492 hash.pool = cf->pool; | |
1493 hash.temp_pool = NULL; | |
509 | 1494 |
611 | 1495 if (ngx_hash_init(&hash, cmcf->variables_keys->keys.elts, |
1496 cmcf->variables_keys->keys.nelts) | |
581 | 1497 != NGX_OK) |
509 | 1498 { |
1499 return NGX_ERROR; | |
1500 } | |
1501 | |
611 | 1502 cmcf->variables_keys = NULL; |
509 | 1503 |
1504 return NGX_OK; | |
1505 } |