Mercurial > hg > nginx
annotate src/http/ngx_http_variables.c @ 2512:2e91aecb9e57
a prelimiary IPv6 support, HTTP listen
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Sat, 21 Feb 2009 07:02:02 +0000 |
parents | 51b1097dbb67 |
children | c843171d5dc2 |
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); | |
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28 static ngx_int_t ngx_http_variable_cookie(ngx_http_request_t *r, |
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29 ngx_http_variable_value_t *v, uintptr_t data); |
2137 | 30 static ngx_int_t ngx_http_variable_argument(ngx_http_request_t *r, |
31 ngx_http_variable_value_t *v, uintptr_t data); | |
577 | 32 |
573 | 33 static ngx_int_t ngx_http_variable_host(ngx_http_request_t *r, |
34 ngx_http_variable_value_t *v, uintptr_t data); | |
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35 static ngx_int_t ngx_http_variable_binary_remote_addr(ngx_http_request_t *r, |
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36 ngx_http_variable_value_t *v, uintptr_t data); |
573 | 37 static ngx_int_t ngx_http_variable_remote_addr(ngx_http_request_t *r, |
38 ngx_http_variable_value_t *v, uintptr_t data); | |
39 static ngx_int_t ngx_http_variable_remote_port(ngx_http_request_t *r, | |
40 ngx_http_variable_value_t *v, uintptr_t data); | |
41 static ngx_int_t ngx_http_variable_server_addr(ngx_http_request_t *r, | |
42 ngx_http_variable_value_t *v, uintptr_t data); | |
43 static ngx_int_t ngx_http_variable_server_port(ngx_http_request_t *r, | |
44 ngx_http_variable_value_t *v, uintptr_t data); | |
731 | 45 static ngx_int_t ngx_http_variable_scheme(ngx_http_request_t *r, |
46 ngx_http_variable_value_t *v, uintptr_t data); | |
1351 | 47 static ngx_int_t ngx_http_variable_is_args(ngx_http_request_t *r, |
48 ngx_http_variable_value_t *v, uintptr_t data); | |
573 | 49 static ngx_int_t ngx_http_variable_document_root(ngx_http_request_t *r, |
50 ngx_http_variable_value_t *v, uintptr_t data); | |
2259 | 51 static ngx_int_t ngx_http_variable_realpath_root(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_filename(ngx_http_request_t *r, |
54 ngx_http_variable_value_t *v, uintptr_t data); | |
1811 | 55 static ngx_int_t ngx_http_variable_server_name(ngx_http_request_t *r, |
56 ngx_http_variable_value_t *v, uintptr_t data); | |
573 | 57 static ngx_int_t ngx_http_variable_request_method(ngx_http_request_t *r, |
58 ngx_http_variable_value_t *v, uintptr_t data); | |
59 static ngx_int_t ngx_http_variable_remote_user(ngx_http_request_t *r, | |
60 ngx_http_variable_value_t *v, uintptr_t data); | |
611 | 61 static ngx_int_t ngx_http_variable_body_bytes_sent(ngx_http_request_t *r, |
62 ngx_http_variable_value_t *v, uintptr_t data); | |
629 | 63 static ngx_int_t ngx_http_variable_request_completion(ngx_http_request_t *r, |
64 ngx_http_variable_value_t *v, uintptr_t data); | |
759 | 65 static ngx_int_t ngx_http_variable_request_body_file(ngx_http_request_t *r, |
66 ngx_http_variable_value_t *v, uintptr_t data); | |
499 | 67 |
641 | 68 static ngx_int_t ngx_http_variable_sent_content_type(ngx_http_request_t *r, |
69 ngx_http_variable_value_t *v, uintptr_t data); | |
70 static ngx_int_t ngx_http_variable_sent_content_length(ngx_http_request_t *r, | |
71 ngx_http_variable_value_t *v, uintptr_t data); | |
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72 static ngx_int_t ngx_http_variable_sent_location(ngx_http_request_t *r, |
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73 ngx_http_variable_value_t *v, uintptr_t data); |
641 | 74 static ngx_int_t ngx_http_variable_sent_last_modified(ngx_http_request_t *r, |
75 ngx_http_variable_value_t *v, uintptr_t data); | |
76 static ngx_int_t ngx_http_variable_sent_connection(ngx_http_request_t *r, | |
77 ngx_http_variable_value_t *v, uintptr_t data); | |
78 static ngx_int_t ngx_http_variable_sent_keep_alive(ngx_http_request_t *r, | |
79 ngx_http_variable_value_t *v, uintptr_t data); | |
80 static ngx_int_t ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r, | |
81 ngx_http_variable_value_t *v, uintptr_t data); | |
82 | |
1329 | 83 static ngx_int_t ngx_http_variable_nginx_version(ngx_http_request_t *r, |
84 ngx_http_variable_value_t *v, uintptr_t data); | |
2011 | 85 static ngx_int_t ngx_http_variable_hostname(ngx_http_request_t *r, |
86 ngx_http_variable_value_t *v, uintptr_t data); | |
2249 | 87 static ngx_int_t ngx_http_variable_pid(ngx_http_request_t *r, |
88 ngx_http_variable_value_t *v, uintptr_t data); | |
499 | 89 |
509 | 90 /* |
91 * TODO: | |
92 * Apache CGI: AUTH_TYPE, PATH_INFO (null), PATH_TRANSLATED | |
93 * REMOTE_HOST (null), REMOTE_IDENT (null), | |
94 * SERVER_SOFTWARE | |
95 * | |
571 | 96 * Apache SSI: DOCUMENT_NAME, LAST_MODIFIED, USER_NAME (file owner) |
509 | 97 */ |
499 | 98 |
641 | 99 /* |
100 * the $http_host, $http_user_agent, $http_referer, $http_via, | |
101 * and $http_x_forwarded_for variables may be handled by generic | |
102 * ngx_http_variable_unknown_header_in(), but for perfomance reasons | |
103 * they are handled using dedicated entries | |
104 */ | |
105 | |
509 | 106 static ngx_http_variable_t ngx_http_core_variables[] = { |
107 | |
637 | 108 { ngx_string("http_host"), NULL, ngx_http_variable_header, |
533 | 109 offsetof(ngx_http_request_t, headers_in.host), 0, 0 }, |
499 | 110 |
637 | 111 { ngx_string("http_user_agent"), NULL, ngx_http_variable_header, |
533 | 112 offsetof(ngx_http_request_t, headers_in.user_agent), 0, 0 }, |
509 | 113 |
637 | 114 { ngx_string("http_referer"), NULL, ngx_http_variable_header, |
533 | 115 offsetof(ngx_http_request_t, headers_in.referer), 0, 0 }, |
499 | 116 |
117 #if (NGX_HTTP_GZIP) | |
637 | 118 { ngx_string("http_via"), NULL, ngx_http_variable_header, |
533 | 119 offsetof(ngx_http_request_t, headers_in.via), 0, 0 }, |
499 | 120 #endif |
121 | |
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122 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP) |
637 | 123 { ngx_string("http_x_forwarded_for"), NULL, ngx_http_variable_header, |
533 | 124 offsetof(ngx_http_request_t, headers_in.x_forwarded_for), 0, 0 }, |
499 | 125 #endif |
126 | |
637 | 127 { ngx_string("http_cookie"), NULL, ngx_http_variable_headers, |
533 | 128 offsetof(ngx_http_request_t, headers_in.cookies), 0, 0 }, |
515 | 129 |
637 | 130 { ngx_string("content_length"), NULL, ngx_http_variable_header, |
533 | 131 offsetof(ngx_http_request_t, headers_in.content_length), 0, 0 }, |
509 | 132 |
637 | 133 { ngx_string("content_type"), NULL, ngx_http_variable_header, |
533 | 134 offsetof(ngx_http_request_t, headers_in.content_type), 0, 0 }, |
509 | 135 |
637 | 136 { ngx_string("host"), NULL, ngx_http_variable_host, 0, 0, 0 }, |
509 | 137 |
982 | 138 { ngx_string("binary_remote_addr"), NULL, |
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139 ngx_http_variable_binary_remote_addr, 0, 0, 0 }, |
982 | 140 |
637 | 141 { ngx_string("remote_addr"), NULL, ngx_http_variable_remote_addr, 0, 0, 0 }, |
499 | 142 |
637 | 143 { ngx_string("remote_port"), NULL, ngx_http_variable_remote_port, 0, 0, 0 }, |
509 | 144 |
637 | 145 { ngx_string("server_addr"), NULL, ngx_http_variable_server_addr, 0, 0, 0 }, |
509 | 146 |
637 | 147 { ngx_string("server_port"), NULL, ngx_http_variable_server_port, 0, 0, 0 }, |
509 | 148 |
637 | 149 { ngx_string("server_protocol"), NULL, ngx_http_variable_request, |
533 | 150 offsetof(ngx_http_request_t, http_protocol), 0, 0 }, |
509 | 151 |
731 | 152 { ngx_string("scheme"), NULL, ngx_http_variable_scheme, 0, 0, 0 }, |
153 | |
637 | 154 { ngx_string("request_uri"), NULL, ngx_http_variable_request, |
533 | 155 offsetof(ngx_http_request_t, unparsed_uri), 0, 0 }, |
499 | 156 |
637 | 157 { ngx_string("uri"), NULL, ngx_http_variable_request, |
158 offsetof(ngx_http_request_t, uri), | |
1565 | 159 NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
637 | 160 |
161 { ngx_string("document_uri"), NULL, ngx_http_variable_request, | |
573 | 162 offsetof(ngx_http_request_t, uri), |
1565 | 163 NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
573 | 164 |
637 | 165 { ngx_string("request"), NULL, ngx_http_variable_request, |
569 | 166 offsetof(ngx_http_request_t, request_line), 0, 0 }, |
167 | |
637 | 168 { ngx_string("document_root"), NULL, |
1565 | 169 ngx_http_variable_document_root, 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
509 | 170 |
2259 | 171 { ngx_string("realpath_root"), NULL, |
172 ngx_http_variable_realpath_root, 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, | |
173 | |
637 | 174 { ngx_string("query_string"), NULL, ngx_http_variable_request, |
509 | 175 offsetof(ngx_http_request_t, args), |
1565 | 176 NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
499 | 177 |
1350 | 178 { ngx_string("args"), |
179 ngx_http_variable_request_set, | |
180 ngx_http_variable_request, | |
589 | 181 offsetof(ngx_http_request_t, args), |
1565 | 182 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
589 | 183 |
1351 | 184 { ngx_string("is_args"), NULL, ngx_http_variable_is_args, |
1565 | 185 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
1351 | 186 |
637 | 187 { ngx_string("request_filename"), NULL, |
188 ngx_http_variable_request_filename, 0, | |
1565 | 189 NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
509 | 190 |
1811 | 191 { ngx_string("server_name"), NULL, ngx_http_variable_server_name, 0, 0, 0 }, |
509 | 192 |
637 | 193 { ngx_string("request_method"), NULL, |
194 ngx_http_variable_request_method, 0, 0, 0 }, | |
509 | 195 |
637 | 196 { ngx_string("remote_user"), NULL, ngx_http_variable_remote_user, 0, 0, 0 }, |
509 | 197 |
637 | 198 { ngx_string("body_bytes_sent"), NULL, ngx_http_variable_body_bytes_sent, |
611 | 199 0, 0, 0 }, |
200 | |
637 | 201 { ngx_string("request_completion"), NULL, |
202 ngx_http_variable_request_completion, | |
629 | 203 0, 0, 0 }, |
204 | |
759 | 205 { ngx_string("request_body_file"), NULL, |
206 ngx_http_variable_request_body_file, | |
207 0, 0, 0 }, | |
208 | |
641 | 209 { ngx_string("sent_http_content_type"), NULL, |
210 ngx_http_variable_sent_content_type, 0, 0, 0 }, | |
211 | |
212 { ngx_string("sent_http_content_length"), NULL, | |
213 ngx_http_variable_sent_content_length, 0, 0, 0 }, | |
214 | |
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215 { ngx_string("sent_http_location"), NULL, |
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216 ngx_http_variable_sent_location, 0, 0, 0 }, |
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217 |
641 | 218 { ngx_string("sent_http_last_modified"), NULL, |
219 ngx_http_variable_sent_last_modified, 0, 0, 0 }, | |
220 | |
221 { ngx_string("sent_http_connection"), NULL, | |
222 ngx_http_variable_sent_connection, 0, 0, 0 }, | |
223 | |
224 { ngx_string("sent_http_keep_alive"), NULL, | |
225 ngx_http_variable_sent_keep_alive, 0, 0, 0 }, | |
226 | |
227 { ngx_string("sent_http_transfer_encoding"), NULL, | |
228 ngx_http_variable_sent_transfer_encoding, 0, 0, 0 }, | |
229 | |
230 { ngx_string("sent_http_cache_control"), NULL, ngx_http_variable_headers, | |
231 offsetof(ngx_http_request_t, headers_out.cache_control), 0, 0 }, | |
232 | |
637 | 233 { ngx_string("limit_rate"), ngx_http_variable_request_set_size, |
234 ngx_http_variable_request, | |
235 offsetof(ngx_http_request_t, limit_rate), | |
1565 | 236 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 }, |
637 | 237 |
1329 | 238 { ngx_string("nginx_version"), NULL, ngx_http_variable_nginx_version, |
239 0, 0, 0 }, | |
240 | |
2011 | 241 { ngx_string("hostname"), NULL, ngx_http_variable_hostname, |
242 0, 0, 0 }, | |
243 | |
2249 | 244 { ngx_string("pid"), NULL, ngx_http_variable_pid, |
245 0, 0, 0 }, | |
246 | |
637 | 247 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
499 | 248 }; |
249 | |
250 | |
577 | 251 ngx_http_variable_value_t ngx_http_variable_null_value = |
252 ngx_http_variable(""); | |
253 ngx_http_variable_value_t ngx_http_variable_true_value = | |
254 ngx_http_variable("1"); | |
255 | |
256 | |
499 | 257 ngx_http_variable_t * |
509 | 258 ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags) |
259 { | |
611 | 260 ngx_int_t rc; |
509 | 261 ngx_uint_t i; |
611 | 262 ngx_hash_key_t *key; |
509 | 263 ngx_http_variable_t *v; |
264 ngx_http_core_main_conf_t *cmcf; | |
265 | |
266 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
267 | |
611 | 268 key = cmcf->variables_keys->keys.elts; |
269 for (i = 0; i < cmcf->variables_keys->keys.nelts; i++) { | |
270 if (name->len != key[i].key.len | |
271 || ngx_strncasecmp(name->data, key[i].key.data, name->len) != 0) | |
509 | 272 { |
273 continue; | |
274 } | |
275 | |
611 | 276 v = key[i].value; |
277 | |
1565 | 278 if (!(v->flags & NGX_HTTP_VAR_CHANGEABLE)) { |
509 | 279 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
280 "the duplicate \"%V\" variable", name); | |
281 return NULL; | |
282 } | |
283 | |
611 | 284 return v; |
509 | 285 } |
286 | |
611 | 287 v = ngx_palloc(cf->pool, sizeof(ngx_http_variable_t)); |
509 | 288 if (v == NULL) { |
289 return NULL; | |
290 } | |
291 | |
292 v->name.len = name->len; | |
2049 | 293 v->name.data = ngx_pnalloc(cf->pool, name->len); |
509 | 294 if (v->name.data == NULL) { |
295 return NULL; | |
296 } | |
297 | |
2135 | 298 ngx_strlow(v->name.data, name->data, name->len); |
509 | 299 |
637 | 300 v->set_handler = NULL; |
301 v->get_handler = NULL; | |
509 | 302 v->data = 0; |
303 v->flags = flags; | |
533 | 304 v->index = 0; |
509 | 305 |
611 | 306 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, 0); |
307 | |
308 if (rc == NGX_ERROR) { | |
309 return NULL; | |
310 } | |
311 | |
312 if (rc == NGX_BUSY) { | |
313 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
314 "conflicting variable name \"%V\"", name); | |
315 return NULL; | |
316 } | |
317 | |
509 | 318 return v; |
319 } | |
320 | |
321 | |
322 ngx_int_t | |
323 ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name) | |
499 | 324 { |
501 | 325 ngx_uint_t i; |
326 ngx_http_variable_t *v; | |
499 | 327 ngx_http_core_main_conf_t *cmcf; |
328 | |
329 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
330 | |
501 | 331 v = cmcf->variables.elts; |
332 | |
333 if (v == NULL) { | |
499 | 334 if (ngx_array_init(&cmcf->variables, cf->pool, 4, |
335 sizeof(ngx_http_variable_t)) == NGX_ERROR) | |
336 { | |
509 | 337 return NGX_ERROR; |
499 | 338 } |
501 | 339 |
340 } else { | |
341 for (i = 0; i < cmcf->variables.nelts; i++) { | |
342 if (name->len != v[i].name.len | |
343 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0) | |
344 { | |
345 continue; | |
346 } | |
347 | |
509 | 348 return i; |
501 | 349 } |
499 | 350 } |
351 | |
501 | 352 v = ngx_array_push(&cmcf->variables); |
353 if (v == NULL) { | |
509 | 354 return NGX_ERROR; |
499 | 355 } |
356 | |
501 | 357 v->name.len = name->len; |
2049 | 358 v->name.data = ngx_pnalloc(cf->pool, name->len); |
501 | 359 if (v->name.data == NULL) { |
509 | 360 return NGX_ERROR; |
501 | 361 } |
499 | 362 |
2135 | 363 ngx_strlow(v->name.data, name->data, name->len); |
501 | 364 |
637 | 365 v->set_handler = NULL; |
366 v->get_handler = NULL; | |
501 | 367 v->data = 0; |
509 | 368 v->flags = 0; |
533 | 369 v->index = cmcf->variables.nelts - 1; |
501 | 370 |
509 | 371 return cmcf->variables.nelts - 1; |
499 | 372 } |
373 | |
374 | |
375 ngx_http_variable_value_t * | |
376 ngx_http_get_indexed_variable(ngx_http_request_t *r, ngx_uint_t index) | |
377 { | |
501 | 378 ngx_http_variable_t *v; |
499 | 379 ngx_http_core_main_conf_t *cmcf; |
380 | |
381 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
382 | |
553 | 383 if (cmcf->variables.nelts <= index) { |
499 | 384 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
385 "unknown variable index: %d", index); | |
386 return NULL; | |
387 } | |
388 | |
573 | 389 if (r->variables[index].not_found || r->variables[index].valid) { |
390 return &r->variables[index]; | |
501 | 391 } |
499 | 392 |
501 | 393 v = cmcf->variables.elts; |
499 | 394 |
637 | 395 if (v[index].get_handler(r, &r->variables[index], v[index].data) |
396 == NGX_OK) | |
397 { | |
1565 | 398 if (v[index].flags & NGX_HTTP_VAR_NOCACHEABLE) { |
399 r->variables[index].no_cacheable = 1; | |
499 | 400 } |
573 | 401 |
402 return &r->variables[index]; | |
499 | 403 } |
404 | |
657 | 405 r->variables[index].valid = 0; |
406 r->variables[index].not_found = 1; | |
407 | |
798 | 408 return NULL; |
573 | 409 } |
410 | |
411 | |
412 ngx_http_variable_value_t * | |
413 ngx_http_get_flushed_variable(ngx_http_request_t *r, ngx_uint_t index) | |
414 { | |
1150 | 415 ngx_http_variable_value_t *v; |
573 | 416 |
417 v = &r->variables[index]; | |
418 | |
419 if (v->valid) { | |
1565 | 420 if (!v->no_cacheable) { |
573 | 421 return v; |
422 } | |
423 | |
424 v->valid = 0; | |
425 v->not_found = 0; | |
509 | 426 } |
501 | 427 |
573 | 428 return ngx_http_get_indexed_variable(r, index); |
499 | 429 } |
430 | |
431 | |
432 ngx_http_variable_value_t * | |
635 | 433 ngx_http_get_variable(ngx_http_request_t *r, ngx_str_t *name, ngx_uint_t key, |
434 ngx_uint_t nowarn) | |
499 | 435 { |
501 | 436 ngx_http_variable_t *v; |
573 | 437 ngx_http_variable_value_t *vv; |
499 | 438 ngx_http_core_main_conf_t *cmcf; |
439 | |
440 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
441 | |
611 | 442 v = ngx_hash_find(&cmcf->variables_hash, key, name->data, name->len); |
499 | 443 |
611 | 444 if (v) { |
445 if (v->flags & NGX_HTTP_VAR_INDEXED) { | |
446 return ngx_http_get_indexed_variable(r, v->index); | |
519 | 447 |
448 } else { | |
499 | 449 |
573 | 450 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t)); |
501 | 451 |
637 | 452 if (vv && v->get_handler(r, vv, v->data) == NGX_OK) { |
573 | 453 return vv; |
454 } | |
509 | 455 |
573 | 456 return NULL; |
457 } | |
509 | 458 } |
459 | |
460 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t)); | |
461 if (vv == NULL) { | |
462 return NULL; | |
463 } | |
464 | |
573 | 465 if (ngx_strncmp(name->data, "http_", 5) == 0) { |
499 | 466 |
577 | 467 if (ngx_http_variable_unknown_header_in(r, vv, (uintptr_t) name) |
468 == NGX_OK) | |
469 { | |
470 return vv; | |
471 } | |
472 | |
473 return NULL; | |
474 } | |
475 | |
476 if (ngx_strncmp(name->data, "sent_http_", 10) == 0) { | |
477 | |
478 if (ngx_http_variable_unknown_header_out(r, vv, (uintptr_t) name) | |
479 == NGX_OK) | |
573 | 480 { |
481 return vv; | |
482 } | |
499 | 483 |
484 return NULL; | |
485 } | |
486 | |
1162 | 487 if (ngx_strncmp(name->data, "upstream_http_", 10) == 0) { |
488 | |
489 if (ngx_http_upstream_header_variable(r, vv, (uintptr_t) name) | |
490 == NGX_OK) | |
491 { | |
492 return vv; | |
493 } | |
494 | |
495 return NULL; | |
496 } | |
497 | |
2307 | 498 if (ngx_strncmp(name->data, "cookie_", 7) == 0) { |
499 | |
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500 if (ngx_http_variable_cookie(r, vv, (uintptr_t) name) == NGX_OK) { |
2307 | 501 return vv; |
502 } | |
503 | |
504 return NULL; | |
505 } | |
506 | |
2137 | 507 if (ngx_strncmp(name->data, "arg_", 4) == 0) { |
508 | |
509 if (ngx_http_variable_argument(r, vv, (uintptr_t) name) == NGX_OK) { | |
510 return vv; | |
511 } | |
512 | |
513 return NULL; | |
514 } | |
515 | |
635 | 516 vv->not_found = 1; |
573 | 517 |
635 | 518 if (nowarn == 0) { |
519 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
520 "unknown \"%V\" variable", name); | |
521 } | |
499 | 522 |
501 | 523 return vv; |
499 | 524 } |
525 | |
526 | |
573 | 527 static ngx_int_t |
528 ngx_http_variable_request(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
529 uintptr_t data) | |
530 { | |
531 ngx_str_t *s; | |
532 | |
533 s = (ngx_str_t *) ((char *) r + data); | |
534 | |
535 if (s->data) { | |
536 v->len = s->len; | |
537 v->valid = 1; | |
1565 | 538 v->no_cacheable = 0; |
573 | 539 v->not_found = 0; |
540 v->data = s->data; | |
541 | |
542 } else { | |
543 v->not_found = 1; | |
544 } | |
545 | |
546 return NGX_OK; | |
547 } | |
548 | |
549 | |
637 | 550 static void |
1350 | 551 ngx_http_variable_request_set(ngx_http_request_t *r, |
552 ngx_http_variable_value_t *v, uintptr_t data) | |
553 { | |
554 ngx_str_t *s; | |
555 | |
556 s = (ngx_str_t *) ((char *) r + data); | |
557 | |
558 s->len = v->len; | |
559 s->data = v->data; | |
560 } | |
561 | |
562 | |
563 static void | |
637 | 564 ngx_http_variable_request_set_size(ngx_http_request_t *r, |
565 ngx_http_variable_value_t *v, uintptr_t data) | |
566 { | |
567 ssize_t s, *sp; | |
568 ngx_str_t val; | |
569 | |
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570 val.len = v->len; |
637 | 571 val.data = v->data; |
572 | |
573 s = ngx_parse_size(&val); | |
574 | |
575 if (s == NGX_ERROR) { | |
576 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
577 "invalid size \"%V\"", &val); | |
578 return; | |
579 } | |
580 | |
581 sp = (ssize_t *) ((char *) r + data); | |
582 | |
583 *sp = s; | |
584 | |
585 return; | |
586 } | |
587 | |
588 | |
573 | 589 static ngx_int_t |
590 ngx_http_variable_header(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
591 uintptr_t data) | |
515 | 592 { |
573 | 593 ngx_table_elt_t *h; |
594 | |
595 h = *(ngx_table_elt_t **) ((char *) r + data); | |
596 | |
597 if (h) { | |
598 v->len = h->value.len; | |
599 v->valid = 1; | |
1565 | 600 v->no_cacheable = 0; |
573 | 601 v->not_found = 0; |
602 v->data = h->value.data; | |
603 | |
604 } else { | |
605 v->not_found = 1; | |
606 } | |
607 | |
608 return NGX_OK; | |
609 } | |
610 | |
611 | |
612 static ngx_int_t | |
613 ngx_http_variable_headers(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
614 uintptr_t data) | |
615 { | |
667 | 616 ssize_t len; |
573 | 617 u_char *p; |
667 | 618 ngx_uint_t i, n; |
573 | 619 ngx_array_t *a; |
620 ngx_table_elt_t **h; | |
515 | 621 |
622 a = (ngx_array_t *) ((char *) r + data); | |
623 | |
667 | 624 n = a->nelts; |
625 | |
626 if (n == 0) { | |
573 | 627 v->not_found = 1; |
628 return NGX_OK; | |
515 | 629 } |
630 | |
573 | 631 v->valid = 1; |
1565 | 632 v->no_cacheable = 0; |
573 | 633 v->not_found = 0; |
515 | 634 |
635 h = a->elts; | |
636 | |
667 | 637 if (n == 1) { |
573 | 638 v->len = (*h)->value.len; |
639 v->data = (*h)->value.data; | |
515 | 640 |
573 | 641 return NGX_OK; |
515 | 642 } |
643 | |
667 | 644 len = - (ssize_t) (sizeof("; ") - 1); |
573 | 645 |
667 | 646 for (i = 0; i < n; i++) { |
573 | 647 len += h[i]->value.len + sizeof("; ") - 1; |
515 | 648 } |
649 | |
2049 | 650 p = ngx_pnalloc(r->pool, len); |
573 | 651 if (p == NULL) { |
652 return NGX_ERROR; | |
653 } | |
654 | |
655 v->len = len; | |
656 v->data = p; | |
515 | 657 |
658 for (i = 0; /* void */ ; i++) { | |
573 | 659 p = ngx_copy(p, h[i]->value.data, h[i]->value.len); |
515 | 660 |
667 | 661 if (i == n - 1) { |
515 | 662 break; |
663 } | |
664 | |
665 *p++ = ';'; *p++ = ' '; | |
666 } | |
667 | |
573 | 668 return NGX_OK; |
515 | 669 } |
670 | |
671 | |
573 | 672 static ngx_int_t |
577 | 673 ngx_http_variable_unknown_header_in(ngx_http_request_t *r, |
674 ngx_http_variable_value_t *v, uintptr_t data) | |
675 { | |
676 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, | |
677 &r->headers_in.headers.part, | |
678 sizeof("http_") - 1); | |
679 } | |
680 | |
681 | |
682 static ngx_int_t | |
683 ngx_http_variable_unknown_header_out(ngx_http_request_t *r, | |
573 | 684 ngx_http_variable_value_t *v, uintptr_t data) |
499 | 685 { |
577 | 686 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, |
687 &r->headers_out.headers.part, | |
688 sizeof("sent_http_") - 1); | |
689 } | |
501 | 690 |
577 | 691 |
1162 | 692 ngx_int_t |
577 | 693 ngx_http_variable_unknown_header(ngx_http_variable_value_t *v, ngx_str_t *var, |
694 ngx_list_part_t *part, size_t prefix) | |
695 { | |
573 | 696 u_char ch; |
697 ngx_uint_t i, n; | |
698 ngx_table_elt_t *header; | |
499 | 699 |
700 header = part->elts; | |
701 | |
702 for (i = 0; /* void */ ; i++) { | |
703 | |
704 if (i >= part->nelts) { | |
705 if (part->next == NULL) { | |
706 break; | |
707 } | |
708 | |
709 part = part->next; | |
710 header = part->elts; | |
711 i = 0; | |
712 } | |
713 | |
577 | 714 for (n = 0; n + prefix < var->len && n < header[i].key.len; n++) { |
499 | 715 ch = header[i].key.data[n]; |
716 | |
509 | 717 if (ch >= 'A' && ch <= 'Z') { |
718 ch |= 0x20; | |
499 | 719 |
720 } else if (ch == '-') { | |
721 ch = '_'; | |
722 } | |
723 | |
577 | 724 if (var->data[n + prefix] != ch) { |
499 | 725 break; |
726 } | |
727 } | |
728 | |
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729 if (n + prefix == var->len && n == header[i].key.len) { |
573 | 730 v->len = header[i].value.len; |
731 v->valid = 1; | |
1565 | 732 v->no_cacheable = 0; |
573 | 733 v->not_found = 0; |
734 v->data = header[i].value.data; | |
499 | 735 |
573 | 736 return NGX_OK; |
499 | 737 } |
738 } | |
739 | |
573 | 740 v->not_found = 1; |
741 | |
742 return NGX_OK; | |
509 | 743 } |
744 | |
745 | |
573 | 746 static ngx_int_t |
2307 | 747 ngx_http_variable_cookie(ngx_http_request_t *r, ngx_http_variable_value_t *v, |
748 uintptr_t data) | |
749 { | |
750 ngx_str_t *name = (ngx_str_t *) data; | |
751 | |
752 ngx_str_t cookie, s; | |
753 | |
754 s.len = name->len - (sizeof("cookie_") - 1); | |
755 s.data = name->data + sizeof("cookie_") - 1; | |
756 | |
757 if (ngx_http_parse_multi_header_lines(&r->headers_in.cookies, &s, &cookie) | |
758 == NGX_DECLINED) | |
759 { | |
760 v->not_found = 1; | |
761 return NGX_OK; | |
762 } | |
763 | |
764 v->len = cookie.len; | |
765 v->valid = 1; | |
766 v->no_cacheable = 0; | |
767 v->not_found = 0; | |
768 v->data = cookie.data; | |
769 | |
770 return NGX_OK; | |
771 } | |
772 | |
773 | |
774 static ngx_int_t | |
2137 | 775 ngx_http_variable_argument(ngx_http_request_t *r, ngx_http_variable_value_t *v, |
776 uintptr_t data) | |
777 { | |
778 ngx_str_t *name = (ngx_str_t *) data; | |
779 | |
2415 | 780 u_char *arg; |
781 size_t len; | |
782 ngx_str_t value; | |
2137 | 783 |
2415 | 784 len = name->len - (sizeof("arg_") - 1); |
785 arg = name->data + sizeof("arg_") - 1; | |
786 | |
787 if (ngx_http_arg(r, arg, len, &value) != NGX_OK) { | |
2137 | 788 v->not_found = 1; |
789 return NGX_OK; | |
790 } | |
791 | |
2415 | 792 v->data = value.data; |
793 v->len = value.len; | |
794 v->valid = 1; | |
795 v->no_cacheable = 0; | |
796 v->not_found = 0; | |
2137 | 797 |
798 return NGX_OK; | |
799 } | |
800 | |
801 | |
802 static ngx_int_t | |
573 | 803 ngx_http_variable_host(ngx_http_request_t *r, ngx_http_variable_value_t *v, |
804 uintptr_t data) | |
509 | 805 { |
1811 | 806 ngx_http_core_srv_conf_t *cscf; |
807 | |
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808 if (r->headers_in.server.len) { |
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809 v->len = r->headers_in.server.len; |
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810 v->data = r->headers_in.server.data; |
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811 |
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812 } else { |
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813 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); |
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814 |
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815 v->len = cscf->server_name.len; |
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816 v->data = cscf->server_name.data; |
509 | 817 } |
818 | |
573 | 819 v->valid = 1; |
1565 | 820 v->no_cacheable = 0; |
573 | 821 v->not_found = 0; |
509 | 822 |
573 | 823 return NGX_OK; |
499 | 824 } |
825 | |
826 | |
573 | 827 static ngx_int_t |
983
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828 ngx_http_variable_binary_remote_addr(ngx_http_request_t *r, |
573 | 829 ngx_http_variable_value_t *v, uintptr_t data) |
499 | 830 { |
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831 struct sockaddr_in *sin; |
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832 #if (NGX_HAVE_INET6) |
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833 struct sockaddr_in6 *sin6; |
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834 #endif |
982 | 835 |
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836 switch (r->connection->sockaddr->sa_family) { |
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837 |
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838 #if (NGX_HAVE_INET6) |
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839 case AF_INET6: |
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840 sin6 = (struct sockaddr_in6 *) r->connection->sockaddr; |
982 | 841 |
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842 v->len = sizeof(struct in6_addr); |
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843 v->valid = 1; |
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844 v->no_cacheable = 0; |
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845 v->not_found = 0; |
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846 v->data = (u_char *) &sin6->sin6_addr; |
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847 |
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848 break; |
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849 #endif |
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850 |
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851 default: /* AF_INET */ |
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852 sin = (struct sockaddr_in *) r->connection->sockaddr; |
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853 |
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854 v->len = sizeof(in_addr_t); |
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855 v->valid = 1; |
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856 v->no_cacheable = 0; |
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857 v->not_found = 0; |
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858 v->data = (u_char *) &sin->sin_addr; |
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859 |
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860 break; |
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861 } |
982 | 862 |
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863 return NGX_OK; |
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864 } |
982 | 865 |
866 | |
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867 static ngx_int_t |
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868 ngx_http_variable_remote_addr(ngx_http_request_t *r, |
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869 ngx_http_variable_value_t *v, uintptr_t data) |
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870 { |
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871 v->len = r->connection->addr_text.len; |
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872 v->valid = 1; |
1565 | 873 v->no_cacheable = 0; |
983
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874 v->not_found = 0; |
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875 v->data = r->connection->addr_text.data; |
499 | 876 |
573 | 877 return NGX_OK; |
499 | 878 } |
879 | |
880 | |
573 | 881 static ngx_int_t |
882 ngx_http_variable_remote_port(ngx_http_request_t *r, | |
883 ngx_http_variable_value_t *v, uintptr_t data) | |
499 | 884 { |
2512
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885 ngx_uint_t port; |
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886 struct sockaddr_in *sin; |
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887 #if (NGX_HAVE_INET6) |
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888 struct sockaddr_in6 *sin6; |
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889 #endif |
509 | 890 |
573 | 891 v->len = 0; |
892 v->valid = 1; | |
1565 | 893 v->no_cacheable = 0; |
573 | 894 v->not_found = 0; |
509 | 895 |
2049 | 896 v->data = ngx_pnalloc(r->pool, sizeof("65535") - 1); |
573 | 897 if (v->data == NULL) { |
898 return NGX_ERROR; | |
509 | 899 } |
900 | |
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901 switch (r->connection->sockaddr->sa_family) { |
577 | 902 |
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903 #if (NGX_HAVE_INET6) |
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904 case AF_INET6: |
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905 sin6 = (struct sockaddr_in6 *) r->connection->sockaddr; |
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906 port = ntohs(sin6->sin6_port); |
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907 break; |
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908 #endif |
577 | 909 |
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910 default: /* AF_INET */ |
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911 sin = (struct sockaddr_in *) r->connection->sockaddr; |
509 | 912 port = ntohs(sin->sin_port); |
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913 break; |
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914 } |
577 | 915 |
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916 if (port > 0 && port < 65536) { |
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917 v->len = ngx_sprintf(v->data, "%ui", port) - v->data; |
509 | 918 } |
919 | |
573 | 920 return NGX_OK; |
509 | 921 } |
922 | |
923 | |
573 | 924 static ngx_int_t |
925 ngx_http_variable_server_addr(ngx_http_request_t *r, | |
926 ngx_http_variable_value_t *v, uintptr_t data) | |
509 | 927 { |
1805 | 928 ngx_str_t s; |
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929 u_char addr[NGX_SOCKADDR_STRLEN]; |
499 | 930 |
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931 s.len = NGX_SOCKADDR_STRLEN; |
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932 s.data = addr; |
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933 |
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934 if (ngx_http_server_addr(r, &s) != NGX_OK) { |
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935 return NGX_ERROR; |
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936 } |
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937 |
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938 s.data = ngx_pnalloc(r->pool, s.len); |
1805 | 939 if (s.data == NULL) { |
573 | 940 return NGX_ERROR; |
509 | 941 } |
942 | |
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943 ngx_memcpy(s.data, addr, s.len); |
509 | 944 |
1805 | 945 v->len = s.len; |
573 | 946 v->valid = 1; |
1565 | 947 v->no_cacheable = 0; |
573 | 948 v->not_found = 0; |
1805 | 949 v->data = s.data; |
499 | 950 |
573 | 951 return NGX_OK; |
499 | 952 } |
953 | |
954 | |
573 | 955 static ngx_int_t |
956 ngx_http_variable_server_port(ngx_http_request_t *r, | |
957 ngx_http_variable_value_t *v, uintptr_t data) | |
509 | 958 { |
573 | 959 v->len = r->port_text->len - 1; |
960 v->valid = 1; | |
1565 | 961 v->no_cacheable = 0; |
573 | 962 v->not_found = 0; |
963 v->data = r->port_text->data + 1; | |
509 | 964 |
573 | 965 return NGX_OK; |
509 | 966 } |
967 | |
968 | |
573 | 969 static ngx_int_t |
731 | 970 ngx_http_variable_scheme(ngx_http_request_t *r, |
971 ngx_http_variable_value_t *v, uintptr_t data) | |
972 { | |
973 #if (NGX_HTTP_SSL) | |
974 | |
975 if (r->connection->ssl) { | |
976 v->len = sizeof("https") - 1; | |
977 v->valid = 1; | |
1565 | 978 v->no_cacheable = 0; |
731 | 979 v->not_found = 0; |
732 | 980 v->data = (u_char *) "https"; |
731 | 981 |
982 return NGX_OK; | |
983 } | |
984 | |
985 #endif | |
986 | |
987 v->len = sizeof("http") - 1; | |
988 v->valid = 1; | |
1565 | 989 v->no_cacheable = 0; |
731 | 990 v->not_found = 0; |
732 | 991 v->data = (u_char *) "http"; |
731 | 992 |
993 return NGX_OK; | |
994 } | |
995 | |
996 | |
997 static ngx_int_t | |
1351 | 998 ngx_http_variable_is_args(ngx_http_request_t *r, |
999 ngx_http_variable_value_t *v, uintptr_t data) | |
1000 { | |
1001 v->valid = 1; | |
1565 | 1002 v->no_cacheable = 0; |
1351 | 1003 v->not_found = 0; |
1004 | |
1005 if (r->args.len == 0) { | |
1006 v->len = 0; | |
1007 v->data = NULL; | |
1008 return NGX_OK; | |
1009 } | |
1010 | |
1011 v->len = 1; | |
1012 v->data = (u_char *) "?"; | |
1013 | |
1014 return NGX_OK; | |
1015 } | |
1016 | |
1017 | |
1018 static ngx_int_t | |
573 | 1019 ngx_http_variable_document_root(ngx_http_request_t *r, |
1020 ngx_http_variable_value_t *v, uintptr_t data) | |
499 | 1021 { |
671 | 1022 ngx_str_t path; |
573 | 1023 ngx_http_core_loc_conf_t *clcf; |
509 | 1024 |
1025 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
1026 | |
671 | 1027 if (clcf->root_lengths == NULL) { |
1028 v->len = clcf->root.len; | |
1029 v->valid = 1; | |
1565 | 1030 v->no_cacheable = 0; |
671 | 1031 v->not_found = 0; |
1032 v->data = clcf->root.data; | |
1033 | |
1034 } else { | |
1035 if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 0, | |
1036 clcf->root_values->elts) | |
1037 == NULL) | |
1038 { | |
1039 return NGX_ERROR; | |
1040 } | |
1041 | |
1352 | 1042 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0) |
1043 == NGX_ERROR) | |
1044 { | |
671 | 1045 return NGX_ERROR; |
1046 } | |
1047 | |
1048 v->len = path.len; | |
1049 v->valid = 1; | |
1565 | 1050 v->no_cacheable = 0; |
671 | 1051 v->not_found = 0; |
1052 v->data = path.data; | |
1053 } | |
509 | 1054 |
573 | 1055 return NGX_OK; |
509 | 1056 } |
1057 | |
1058 | |
573 | 1059 static ngx_int_t |
2259 | 1060 ngx_http_variable_realpath_root(ngx_http_request_t *r, |
1061 ngx_http_variable_value_t *v, uintptr_t data) | |
1062 { | |
1063 size_t len; | |
1064 ngx_str_t path; | |
1065 ngx_http_core_loc_conf_t *clcf; | |
1066 u_char real[NGX_MAX_PATH]; | |
1067 | |
1068 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
1069 | |
1070 if (clcf->root_lengths == NULL) { | |
1071 path = clcf->root; | |
1072 | |
1073 } else { | |
1074 if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 1, | |
1075 clcf->root_values->elts) | |
1076 == NULL) | |
1077 { | |
1078 return NGX_ERROR; | |
1079 } | |
1080 | |
1081 path.data[path.len - 1] = '\0'; | |
1082 | |
1083 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0) | |
1084 == NGX_ERROR) | |
1085 { | |
1086 return NGX_ERROR; | |
1087 } | |
1088 } | |
1089 | |
1090 if (ngx_realpath(path.data, real) == NULL) { | |
1091 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno, | |
1092 ngx_realpath_n " \"%s\" failed", path.data); | |
1093 return NGX_ERROR; | |
1094 } | |
1095 | |
1096 len = ngx_strlen(real); | |
1097 | |
1098 v->data = ngx_pnalloc(r->pool, len); | |
1099 if (v->data == NULL) { | |
1100 return NGX_ERROR; | |
1101 } | |
1102 | |
1103 v->len = len; | |
1104 v->valid = 1; | |
1105 v->no_cacheable = 0; | |
1106 v->not_found = 0; | |
1107 | |
1108 ngx_memcpy(v->data, real, len); | |
1109 | |
1110 return NGX_OK; | |
1111 } | |
1112 | |
1113 | |
1114 static ngx_int_t | |
573 | 1115 ngx_http_variable_request_filename(ngx_http_request_t *r, |
1116 ngx_http_variable_value_t *v, uintptr_t data) | |
509 | 1117 { |
773 | 1118 size_t root; |
573 | 1119 ngx_str_t path; |
499 | 1120 |
773 | 1121 if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) { |
573 | 1122 return NGX_ERROR; |
557 | 1123 } |
509 | 1124 |
557 | 1125 /* ngx_http_map_uri_to_path() allocates memory for terminating '\0' */ |
509 | 1126 |
573 | 1127 v->len = path.len - 1; |
1128 v->valid = 1; | |
1565 | 1129 v->no_cacheable = 0; |
573 | 1130 v->not_found = 0; |
1131 v->data = path.data; | |
499 | 1132 |
573 | 1133 return NGX_OK; |
499 | 1134 } |
1135 | |
1136 | |
573 | 1137 static ngx_int_t |
1811 | 1138 ngx_http_variable_server_name(ngx_http_request_t *r, |
1139 ngx_http_variable_value_t *v, uintptr_t data) | |
1140 { | |
1141 ngx_http_core_srv_conf_t *cscf; | |
1142 | |
1143 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); | |
1144 | |
1145 v->len = cscf->server_name.len; | |
1146 v->valid = 1; | |
1147 v->no_cacheable = 0; | |
1148 v->not_found = 0; | |
1149 v->data = cscf->server_name.data; | |
1150 | |
1151 return NGX_OK; | |
1152 } | |
1153 | |
1154 | |
1155 static ngx_int_t | |
573 | 1156 ngx_http_variable_request_method(ngx_http_request_t *r, |
1157 ngx_http_variable_value_t *v, uintptr_t data) | |
561 | 1158 { |
647 | 1159 if (r->main->method_name.data) { |
1160 v->len = r->main->method_name.len; | |
573 | 1161 v->valid = 1; |
1565 | 1162 v->no_cacheable = 0; |
573 | 1163 v->not_found = 0; |
647 | 1164 v->data = r->main->method_name.data; |
573 | 1165 |
1166 } else { | |
1167 v->not_found = 1; | |
561 | 1168 } |
1169 | |
573 | 1170 return NGX_OK; |
561 | 1171 } |
1172 | |
1173 | |
573 | 1174 static ngx_int_t |
1175 ngx_http_variable_remote_user(ngx_http_request_t *r, | |
1176 ngx_http_variable_value_t *v, uintptr_t data) | |
539 | 1177 { |
573 | 1178 ngx_int_t rc; |
539 | 1179 |
1180 rc = ngx_http_auth_basic_user(r); | |
1181 | |
1182 if (rc == NGX_DECLINED) { | |
573 | 1183 v->not_found = 1; |
1184 return NGX_OK; | |
539 | 1185 } |
1186 | |
1187 if (rc == NGX_ERROR) { | |
573 | 1188 return NGX_ERROR; |
539 | 1189 } |
1190 | |
573 | 1191 v->len = r->headers_in.user.len; |
1192 v->valid = 1; | |
1565 | 1193 v->no_cacheable = 0; |
573 | 1194 v->not_found = 0; |
1195 v->data = r->headers_in.user.data; | |
571 | 1196 |
573 | 1197 return NGX_OK; |
571 | 1198 } |
1199 | |
1200 | |
611 | 1201 static ngx_int_t |
1202 ngx_http_variable_body_bytes_sent(ngx_http_request_t *r, | |
1203 ngx_http_variable_value_t *v, uintptr_t data) | |
1204 { | |
1205 off_t sent; | |
1206 u_char *p; | |
1207 | |
1208 sent = r->connection->sent - r->header_size; | |
1209 | |
1210 if (sent < 0) { | |
1211 sent = 0; | |
1212 } | |
1213 | |
2049 | 1214 p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN); |
611 | 1215 if (p == NULL) { |
1216 return NGX_ERROR; | |
1217 } | |
1218 | |
1219 v->len = ngx_sprintf(p, "%O", sent) - p; | |
1220 v->valid = 1; | |
1565 | 1221 v->no_cacheable = 0; |
611 | 1222 v->not_found = 0; |
1223 v->data = p; | |
1224 | |
1225 return NGX_OK; | |
1226 } | |
1227 | |
1228 | |
629 | 1229 static ngx_int_t |
641 | 1230 ngx_http_variable_sent_content_type(ngx_http_request_t *r, |
1231 ngx_http_variable_value_t *v, uintptr_t data) | |
1232 { | |
1233 if (r->headers_out.content_type.len) { | |
1234 v->len = r->headers_out.content_type.len; | |
1235 v->valid = 1; | |
1565 | 1236 v->no_cacheable = 0; |
641 | 1237 v->not_found = 0; |
1238 v->data = r->headers_out.content_type.data; | |
1239 | |
1240 } else { | |
1241 v->not_found = 1; | |
1242 } | |
1243 | |
1244 return NGX_OK; | |
1245 } | |
1246 | |
1247 | |
1248 static ngx_int_t | |
1249 ngx_http_variable_sent_content_length(ngx_http_request_t *r, | |
1250 ngx_http_variable_value_t *v, uintptr_t data) | |
1251 { | |
1252 u_char *p; | |
1253 | |
1254 if (r->headers_out.content_length) { | |
1255 v->len = r->headers_out.content_length->value.len; | |
1256 v->valid = 1; | |
1565 | 1257 v->no_cacheable = 0; |
641 | 1258 v->not_found = 0; |
1259 v->data = r->headers_out.content_length->value.data; | |
1260 | |
1261 return NGX_OK; | |
1262 } | |
1263 | |
1264 if (r->headers_out.content_length_n >= 0) { | |
2049 | 1265 p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN); |
641 | 1266 if (p == NULL) { |
1267 return NGX_ERROR; | |
1268 } | |
1269 | |
1270 v->len = ngx_sprintf(p, "%O", r->headers_out.content_length_n) - p; | |
1271 v->valid = 1; | |
1565 | 1272 v->no_cacheable = 0; |
641 | 1273 v->not_found = 0; |
1274 v->data = p; | |
1275 | |
1276 return NGX_OK; | |
1277 } | |
1278 | |
1279 v->not_found = 1; | |
1280 | |
1281 return NGX_OK; | |
1282 } | |
1283 | |
1284 | |
1285 static ngx_int_t | |
2485
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1286 ngx_http_variable_sent_location(ngx_http_request_t *r, |
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1287 ngx_http_variable_value_t *v, uintptr_t data) |
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1288 { |
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1289 if (r->headers_out.location) { |
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1290 v->len = r->headers_out.location->value.len; |
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1291 v->valid = 1; |
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1292 v->no_cacheable = 0; |
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1293 v->not_found = 0; |
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1294 v->data = r->headers_out.location->value.data; |
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1295 |
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1296 return NGX_OK; |
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1297 } |
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1298 |
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1299 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, |
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1300 &r->headers_out.headers.part, |
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1301 sizeof("sent_http_") - 1); |
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1302 } |
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1303 |
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1304 |
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1305 static ngx_int_t |
641 | 1306 ngx_http_variable_sent_last_modified(ngx_http_request_t *r, |
1307 ngx_http_variable_value_t *v, uintptr_t data) | |
1308 { | |
1309 u_char *p; | |
1310 | |
1311 if (r->headers_out.last_modified) { | |
1312 v->len = r->headers_out.last_modified->value.len; | |
1313 v->valid = 1; | |
1565 | 1314 v->no_cacheable = 0; |
641 | 1315 v->not_found = 0; |
1316 v->data = r->headers_out.last_modified->value.data; | |
1317 | |
1318 return NGX_OK; | |
1319 } | |
1320 | |
1321 if (r->headers_out.last_modified_time >= 0) { | |
2049 | 1322 p = ngx_pnalloc(r->pool, |
641 | 1323 sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT") - 1); |
1324 if (p == NULL) { | |
1325 return NGX_ERROR; | |
1326 } | |
1327 | |
1328 v->len = ngx_http_time(p, r->headers_out.last_modified_time) - p; | |
1329 v->valid = 1; | |
1565 | 1330 v->no_cacheable = 0; |
641 | 1331 v->not_found = 0; |
1332 v->data = p; | |
1333 | |
1334 return NGX_OK; | |
1335 } | |
1336 | |
1337 v->not_found = 1; | |
1338 | |
1339 return NGX_OK; | |
1340 } | |
1341 | |
1342 | |
1343 static ngx_int_t | |
1344 ngx_http_variable_sent_connection(ngx_http_request_t *r, | |
1345 ngx_http_variable_value_t *v, uintptr_t data) | |
1346 { | |
1347 size_t len; | |
1348 char *p; | |
1349 | |
1350 if (r->keepalive) { | |
1351 len = sizeof("keep-alive") - 1; | |
1352 p = "keep-alive"; | |
1353 | |
1354 } else { | |
1355 len = sizeof("close") - 1; | |
1356 p = "close"; | |
1357 } | |
1358 | |
1359 v->len = len; | |
1360 v->valid = 1; | |
1565 | 1361 v->no_cacheable = 0; |
641 | 1362 v->not_found = 0; |
1363 v->data = (u_char *) p; | |
1364 | |
1365 return NGX_OK; | |
1366 } | |
1367 | |
1368 | |
1369 static ngx_int_t | |
1370 ngx_http_variable_sent_keep_alive(ngx_http_request_t *r, | |
1371 ngx_http_variable_value_t *v, uintptr_t data) | |
1372 { | |
1373 u_char *p; | |
1374 ngx_http_core_loc_conf_t *clcf; | |
1375 | |
1376 if (r->keepalive) { | |
1377 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
1378 | |
1379 if (clcf->keepalive_header) { | |
1380 | |
2049 | 1381 p = ngx_pnalloc(r->pool, sizeof("timeout=") - 1 + NGX_TIME_T_LEN); |
641 | 1382 if (p == NULL) { |
1383 return NGX_ERROR; | |
1384 } | |
1385 | |
1386 v->len = ngx_sprintf(p, "timeout=%T", clcf->keepalive_header) - p; | |
1387 v->valid = 1; | |
1565 | 1388 v->no_cacheable = 0; |
641 | 1389 v->not_found = 0; |
1390 v->data = p; | |
1391 | |
1392 return NGX_OK; | |
1393 } | |
1394 } | |
1395 | |
1396 v->not_found = 1; | |
1397 | |
1398 return NGX_OK; | |
1399 } | |
1400 | |
1401 | |
1402 static ngx_int_t | |
1403 ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r, | |
1404 ngx_http_variable_value_t *v, uintptr_t data) | |
1405 { | |
1406 if (r->chunked) { | |
1407 v->len = sizeof("chunked") - 1; | |
1408 v->valid = 1; | |
1565 | 1409 v->no_cacheable = 0; |
641 | 1410 v->not_found = 0; |
1411 v->data = (u_char *) "chunked"; | |
1412 | |
1413 } else { | |
1414 v->not_found = 1; | |
1415 } | |
1416 | |
1417 return NGX_OK; | |
1418 } | |
1419 | |
1420 | |
1421 static ngx_int_t | |
629 | 1422 ngx_http_variable_request_completion(ngx_http_request_t *r, |
1423 ngx_http_variable_value_t *v, uintptr_t data) | |
1424 { | |
1425 if (r->request_complete) { | |
1426 v->len = 2; | |
1427 v->valid = 1; | |
1565 | 1428 v->no_cacheable = 0; |
629 | 1429 v->not_found = 0; |
1430 v->data = (u_char *) "OK"; | |
1431 | |
1432 return NGX_OK; | |
1433 } | |
1434 | |
1435 v->len = 0; | |
1436 v->valid = 1; | |
1565 | 1437 v->no_cacheable = 0; |
629 | 1438 v->not_found = 0; |
1439 v->data = (u_char *) ""; | |
1440 | |
1441 return NGX_OK; | |
1442 } | |
1443 | |
1444 | |
759 | 1445 static ngx_int_t |
1446 ngx_http_variable_request_body_file(ngx_http_request_t *r, | |
1447 ngx_http_variable_value_t *v, uintptr_t data) | |
1448 { | |
1449 if (r->request_body == NULL || r->request_body->temp_file == NULL) { | |
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1450 v->not_found = 1; |
759 | 1451 |
1452 return NGX_OK; | |
1453 } | |
1454 | |
1455 v->len = r->request_body->temp_file->file.name.len; | |
1456 v->valid = 1; | |
1565 | 1457 v->no_cacheable = 0; |
759 | 1458 v->not_found = 0; |
1459 v->data = r->request_body->temp_file->file.name.data; | |
1460 | |
1461 return NGX_OK; | |
1462 } | |
1463 | |
1464 | |
1329 | 1465 static ngx_int_t |
1466 ngx_http_variable_nginx_version(ngx_http_request_t *r, | |
1467 ngx_http_variable_value_t *v, uintptr_t data) | |
1468 { | |
1469 v->len = sizeof(NGINX_VERSION) - 1; | |
1470 v->valid = 1; | |
1565 | 1471 v->no_cacheable = 0; |
1329 | 1472 v->not_found = 0; |
1473 v->data = (u_char *) NGINX_VERSION; | |
1474 | |
1475 return NGX_OK; | |
1476 } | |
1477 | |
1478 | |
2011 | 1479 static ngx_int_t |
1480 ngx_http_variable_hostname(ngx_http_request_t *r, | |
1481 ngx_http_variable_value_t *v, uintptr_t data) | |
1482 { | |
1483 v->len = ngx_cycle->hostname.len; | |
1484 v->valid = 1; | |
1485 v->no_cacheable = 0; | |
1486 v->not_found = 0; | |
1487 v->data = ngx_cycle->hostname.data; | |
1488 | |
1489 return NGX_OK; | |
1490 } | |
1491 | |
1492 | |
2249 | 1493 static ngx_int_t |
1494 ngx_http_variable_pid(ngx_http_request_t *r, | |
1495 ngx_http_variable_value_t *v, uintptr_t data) | |
1496 { | |
1497 u_char *p; | |
1498 | |
1499 p = ngx_pnalloc(r->pool, NGX_INT64_LEN); | |
1500 if (p == NULL) { | |
1501 return NGX_ERROR; | |
1502 } | |
1503 | |
1504 v->len = ngx_sprintf(p, "%P", ngx_pid) - p; | |
1505 v->valid = 1; | |
1506 v->no_cacheable = 0; | |
1507 v->not_found = 0; | |
1508 v->data = p; | |
1509 | |
1510 return NGX_OK; | |
1511 } | |
1512 | |
1513 | |
499 | 1514 ngx_int_t |
509 | 1515 ngx_http_variables_add_core_vars(ngx_conf_t *cf) |
499 | 1516 { |
611 | 1517 ngx_int_t rc; |
1518 ngx_http_variable_t *v; | |
501 | 1519 ngx_http_core_main_conf_t *cmcf; |
499 | 1520 |
509 | 1521 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); |
1522 | |
611 | 1523 cmcf->variables_keys = ngx_pcalloc(cf->temp_pool, |
1524 sizeof(ngx_hash_keys_arrays_t)); | |
1525 if (cmcf->variables_keys == NULL) { | |
1526 return NGX_ERROR; | |
1527 } | |
1528 | |
1529 cmcf->variables_keys->pool = cf->pool; | |
1530 cmcf->variables_keys->temp_pool = cf->pool; | |
1531 | |
1532 if (ngx_hash_keys_array_init(cmcf->variables_keys, NGX_HASH_SMALL) | |
1533 != NGX_OK) | |
509 | 1534 { |
499 | 1535 return NGX_ERROR; |
1536 } | |
1537 | |
611 | 1538 for (v = ngx_http_core_variables; v->name.len; v++) { |
1539 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, | |
1540 NGX_HASH_READONLY_KEY); | |
1541 | |
1542 if (rc == NGX_OK) { | |
1543 continue; | |
499 | 1544 } |
1545 | |
611 | 1546 if (rc == NGX_BUSY) { |
1547 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1548 "conflicting variable name \"%V\"", &v->name); | |
1549 } | |
1550 | |
1551 return NGX_ERROR; | |
499 | 1552 } |
1553 | |
1554 return NGX_OK; | |
1555 } | |
509 | 1556 |
1557 | |
1558 ngx_int_t | |
1559 ngx_http_variables_init_vars(ngx_conf_t *cf) | |
1560 { | |
1561 ngx_uint_t i, n; | |
611 | 1562 ngx_hash_key_t *key; |
1563 ngx_hash_init_t hash; | |
509 | 1564 ngx_http_variable_t *v, *av; |
1565 ngx_http_core_main_conf_t *cmcf; | |
1566 | |
1567 /* set the handlers for the indexed http variables */ | |
1568 | |
1569 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
1570 | |
1571 v = cmcf->variables.elts; | |
611 | 1572 key = cmcf->variables_keys->keys.elts; |
509 | 1573 |
1574 for (i = 0; i < cmcf->variables.nelts; i++) { | |
1575 | |
611 | 1576 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) { |
509 | 1577 |
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1578 av = key[n].value; |
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1579 |
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1580 if (av->get_handler |
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1581 && v[i].name.len == key[n].key.len |
611 | 1582 && ngx_strncmp(v[i].name.data, key[n].key.data, v[i].name.len) |
509 | 1583 == 0) |
1584 { | |
637 | 1585 v[i].get_handler = av->get_handler; |
611 | 1586 v[i].data = av->data; |
527 | 1587 |
611 | 1588 av->flags |= NGX_HTTP_VAR_INDEXED; |
1589 v[i].flags = av->flags; | |
509 | 1590 |
611 | 1591 av->index = i; |
533 | 1592 |
509 | 1593 goto next; |
1594 } | |
1595 } | |
1596 | |
1597 if (ngx_strncmp(v[i].name.data, "http_", 5) == 0) { | |
637 | 1598 v[i].get_handler = ngx_http_variable_unknown_header_in; |
577 | 1599 v[i].data = (uintptr_t) &v[i].name; |
1600 | |
1601 continue; | |
1602 } | |
1603 | |
1604 if (ngx_strncmp(v[i].name.data, "sent_http_", 10) == 0) { | |
637 | 1605 v[i].get_handler = ngx_http_variable_unknown_header_out; |
509 | 1606 v[i].data = (uintptr_t) &v[i].name; |
1607 | |
1608 continue; | |
1609 } | |
1610 | |
1162 | 1611 if (ngx_strncmp(v[i].name.data, "upstream_http_", 14) == 0) { |
1612 v[i].get_handler = ngx_http_upstream_header_variable; | |
1613 v[i].data = (uintptr_t) &v[i].name; | |
1565 | 1614 v[i].flags = NGX_HTTP_VAR_NOCACHEABLE; |
1162 | 1615 |
1616 continue; | |
1617 } | |
1618 | |
2307 | 1619 if (ngx_strncmp(v[i].name.data, "cookie_", 7) == 0) { |
1620 v[i].get_handler = ngx_http_variable_cookie; | |
1621 v[i].data = (uintptr_t) &v[i].name; | |
1622 | |
1623 continue; | |
1624 } | |
1625 | |
2137 | 1626 if (ngx_strncmp(v[i].name.data, "arg_", 4) == 0) { |
1627 v[i].get_handler = ngx_http_variable_argument; | |
1628 v[i].data = (uintptr_t) &v[i].name; | |
1629 | |
1630 continue; | |
1631 } | |
1632 | |
509 | 1633 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, |
1634 "unknown \"%V\" variable", &v[i].name); | |
1635 | |
1636 return NGX_ERROR; | |
1637 | |
1638 next: | |
1639 continue; | |
1640 } | |
1641 | |
1642 | |
611 | 1643 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) { |
1644 av = key[n].value; | |
1645 | |
1646 if (av->flags & NGX_HTTP_VAR_NOHASH) { | |
1647 key[n].key.data = NULL; | |
583 | 1648 } |
1649 } | |
1650 | |
1651 | |
611 | 1652 hash.hash = &cmcf->variables_hash; |
1653 hash.key = ngx_hash_key; | |
1654 hash.max_size = cmcf->variables_hash_max_size; | |
1655 hash.bucket_size = cmcf->variables_hash_bucket_size; | |
1656 hash.name = "variables_hash"; | |
1657 hash.pool = cf->pool; | |
1658 hash.temp_pool = NULL; | |
509 | 1659 |
611 | 1660 if (ngx_hash_init(&hash, cmcf->variables_keys->keys.elts, |
1661 cmcf->variables_keys->keys.nelts) | |
581 | 1662 != NGX_OK) |
509 | 1663 { |
1664 return NGX_ERROR; | |
1665 } | |
1666 | |
611 | 1667 cmcf->variables_keys = NULL; |
509 | 1668 |
1669 return NGX_OK; | |
1670 } | |
2333
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1671 |
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1672 |
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1673 void |
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1674 ngx_http_variable_value_rbtree_insert(ngx_rbtree_node_t *temp, |
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1675 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel) |
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1676 { |
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1677 ngx_rbtree_node_t **p; |
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1678 ngx_http_variable_value_node_t *vvn, *vvt; |
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1679 |
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1680 for ( ;; ) { |
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1681 |
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1682 vvn = (ngx_http_variable_value_node_t *) node; |
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1683 vvt = (ngx_http_variable_value_node_t *) temp; |
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1684 |
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1685 if (node->key != temp->key) { |
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1686 |
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1687 p = (node->key < temp->key) ? &temp->left : &temp->right; |
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1688 |
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1689 } else if (vvn->len != vvt->len) { |
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1690 |
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1691 p = (vvn->len < vvt->len) ? &temp->left : &temp->right; |
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1692 |
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1693 } else { |
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1694 p = (ngx_memcmp(vvn->value->data, vvt->value->data, vvn->len) < 0) |
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1695 ? &temp->left : &temp->right; |
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1696 } |
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1697 |
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1698 if (*p == sentinel) { |
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1699 break; |
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1700 } |
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1701 |
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1702 temp = *p; |
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1703 } |
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1704 |
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1705 *p = node; |
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1706 node->parent = temp; |
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1707 node->left = sentinel; |
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1708 node->right = sentinel; |
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1709 ngx_rbt_red(node); |
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1710 } |
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1711 |
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1712 |
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1713 ngx_http_variable_value_t * |
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1714 ngx_http_variable_value_lookup(ngx_rbtree_t *rbtree, ngx_str_t *val, |
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1715 uint32_t hash) |
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1716 { |
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1717 ngx_int_t rc; |
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1718 ngx_rbtree_node_t *node, *sentinel; |
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1719 ngx_http_variable_value_node_t *vvn; |
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1720 |
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1721 node = rbtree->root; |
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1722 sentinel = rbtree->sentinel; |
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1723 |
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1724 while (node != sentinel) { |
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1725 |
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1726 vvn = (ngx_http_variable_value_node_t *) node; |
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1727 |
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1728 if (hash != node->key) { |
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1729 node = (hash < node->key) ? node->left : node->right; |
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1730 continue; |
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1731 } |
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1732 |
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1733 if (val->len != vvn->len) { |
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1734 node = (val->len < vvn->len) ? node->left : node->right; |
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1735 continue; |
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1736 } |
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1737 |
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1738 rc = ngx_memcmp(val->data, vvn->value->data, val->len); |
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1739 |
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1740 if (rc < 0) { |
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1741 node = node->left; |
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1742 continue; |
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1743 } |
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1744 |
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1745 if (rc > 0) { |
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1746 node = node->right; |
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1747 continue; |
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1748 } |
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1749 |
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1750 return vvn->value; |
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1751 } |
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1752 |
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1753 return NULL; |
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1754 } |