Mercurial > hg > nginx
annotate src/http/ngx_http_variables.c @ 928:a6fe6bedb9e3
fix segfault when $host is used and
*) request is "GET http://host" without CR or LF, or timed out
*) request is "GET http://host" with a large blank space
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Fri, 15 Dec 2006 10:24:57 +0000 |
| parents | 7521e5f5d555 |
| children | 664afe2c1480 |
| rev | line source |
|---|---|
| 499 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 */ | |
| 5 | |
| 6 | |
| 7 #include <ngx_config.h> | |
| 8 #include <ngx_core.h> | |
| 9 #include <ngx_event.h> | |
| 10 #include <ngx_http.h> | |
| 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); | |
| 637 | 15 static void ngx_http_variable_request_set_size(ngx_http_request_t *r, |
| 16 ngx_http_variable_value_t *v, uintptr_t data); | |
| 573 | 17 static ngx_int_t ngx_http_variable_header(ngx_http_request_t *r, |
| 18 ngx_http_variable_value_t *v, uintptr_t data); | |
| 19 static ngx_int_t ngx_http_variable_headers(ngx_http_request_t *r, | |
| 20 ngx_http_variable_value_t *v, uintptr_t data); | |
| 577 | 21 |
| 22 static ngx_int_t ngx_http_variable_unknown_header_in(ngx_http_request_t *r, | |
| 573 | 23 ngx_http_variable_value_t *v, uintptr_t data); |
| 577 | 24 static ngx_int_t ngx_http_variable_unknown_header_out(ngx_http_request_t *r, |
| 25 ngx_http_variable_value_t *v, uintptr_t data); | |
| 26 static ngx_int_t ngx_http_variable_unknown_header(ngx_http_variable_value_t *v, | |
| 27 ngx_str_t *var, ngx_list_part_t *part, size_t prefix); | |
| 28 | |
| 573 | 29 static ngx_int_t ngx_http_variable_host(ngx_http_request_t *r, |
| 30 ngx_http_variable_value_t *v, uintptr_t data); | |
| 31 static ngx_int_t ngx_http_variable_remote_addr(ngx_http_request_t *r, | |
| 32 ngx_http_variable_value_t *v, uintptr_t data); | |
| 33 static ngx_int_t ngx_http_variable_remote_port(ngx_http_request_t *r, | |
| 34 ngx_http_variable_value_t *v, uintptr_t data); | |
| 35 static ngx_int_t ngx_http_variable_server_addr(ngx_http_request_t *r, | |
| 36 ngx_http_variable_value_t *v, uintptr_t data); | |
| 37 static ngx_int_t ngx_http_variable_server_port(ngx_http_request_t *r, | |
| 38 ngx_http_variable_value_t *v, uintptr_t data); | |
| 731 | 39 static ngx_int_t ngx_http_variable_scheme(ngx_http_request_t *r, |
| 40 ngx_http_variable_value_t *v, uintptr_t data); | |
| 573 | 41 static ngx_int_t ngx_http_variable_document_root(ngx_http_request_t *r, |
| 42 ngx_http_variable_value_t *v, uintptr_t data); | |
| 43 static ngx_int_t ngx_http_variable_request_filename(ngx_http_request_t *r, | |
| 44 ngx_http_variable_value_t *v, uintptr_t data); | |
| 45 static ngx_int_t ngx_http_variable_request_method(ngx_http_request_t *r, | |
| 46 ngx_http_variable_value_t *v, uintptr_t data); | |
| 47 static ngx_int_t ngx_http_variable_remote_user(ngx_http_request_t *r, | |
| 48 ngx_http_variable_value_t *v, uintptr_t data); | |
| 611 | 49 static ngx_int_t ngx_http_variable_body_bytes_sent(ngx_http_request_t *r, |
| 50 ngx_http_variable_value_t *v, uintptr_t data); | |
| 629 | 51 static ngx_int_t ngx_http_variable_request_completion(ngx_http_request_t *r, |
| 52 ngx_http_variable_value_t *v, uintptr_t data); | |
| 759 | 53 static ngx_int_t ngx_http_variable_request_body_file(ngx_http_request_t *r, |
| 54 ngx_http_variable_value_t *v, uintptr_t data); | |
| 499 | 55 |
| 641 | 56 static ngx_int_t ngx_http_variable_sent_content_type(ngx_http_request_t *r, |
| 57 ngx_http_variable_value_t *v, uintptr_t data); | |
| 58 static ngx_int_t ngx_http_variable_sent_content_length(ngx_http_request_t *r, | |
| 59 ngx_http_variable_value_t *v, uintptr_t data); | |
| 60 static ngx_int_t ngx_http_variable_sent_last_modified(ngx_http_request_t *r, | |
| 61 ngx_http_variable_value_t *v, uintptr_t data); | |
| 62 static ngx_int_t ngx_http_variable_sent_connection(ngx_http_request_t *r, | |
| 63 ngx_http_variable_value_t *v, uintptr_t data); | |
| 64 static ngx_int_t ngx_http_variable_sent_keep_alive(ngx_http_request_t *r, | |
| 65 ngx_http_variable_value_t *v, uintptr_t data); | |
| 66 static ngx_int_t ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r, | |
| 67 ngx_http_variable_value_t *v, uintptr_t data); | |
| 68 | |
| 499 | 69 |
| 509 | 70 /* |
| 71 * TODO: | |
| 72 * Apache CGI: AUTH_TYPE, PATH_INFO (null), PATH_TRANSLATED | |
| 73 * REMOTE_HOST (null), REMOTE_IDENT (null), | |
| 74 * SERVER_SOFTWARE | |
| 75 * | |
| 571 | 76 * Apache SSI: DOCUMENT_NAME, LAST_MODIFIED, USER_NAME (file owner) |
| 509 | 77 */ |
| 499 | 78 |
| 641 | 79 /* |
| 80 * the $http_host, $http_user_agent, $http_referer, $http_via, | |
| 81 * and $http_x_forwarded_for variables may be handled by generic | |
| 82 * ngx_http_variable_unknown_header_in(), but for perfomance reasons | |
| 83 * they are handled using dedicated entries | |
| 84 */ | |
| 85 | |
| 509 | 86 static ngx_http_variable_t ngx_http_core_variables[] = { |
| 87 | |
| 637 | 88 { ngx_string("http_host"), NULL, ngx_http_variable_header, |
| 533 | 89 offsetof(ngx_http_request_t, headers_in.host), 0, 0 }, |
| 499 | 90 |
| 637 | 91 { ngx_string("http_user_agent"), NULL, ngx_http_variable_header, |
| 533 | 92 offsetof(ngx_http_request_t, headers_in.user_agent), 0, 0 }, |
| 509 | 93 |
| 637 | 94 { ngx_string("http_referer"), NULL, ngx_http_variable_header, |
| 533 | 95 offsetof(ngx_http_request_t, headers_in.referer), 0, 0 }, |
| 499 | 96 |
| 97 #if (NGX_HTTP_GZIP) | |
| 637 | 98 { ngx_string("http_via"), NULL, ngx_http_variable_header, |
| 533 | 99 offsetof(ngx_http_request_t, headers_in.via), 0, 0 }, |
| 499 | 100 #endif |
| 101 | |
| 102 #if (NGX_HTTP_PROXY) | |
| 637 | 103 { ngx_string("http_x_forwarded_for"), NULL, ngx_http_variable_header, |
| 533 | 104 offsetof(ngx_http_request_t, headers_in.x_forwarded_for), 0, 0 }, |
| 499 | 105 #endif |
| 106 | |
| 637 | 107 { ngx_string("http_cookie"), NULL, ngx_http_variable_headers, |
| 533 | 108 offsetof(ngx_http_request_t, headers_in.cookies), 0, 0 }, |
| 515 | 109 |
| 637 | 110 { ngx_string("content_length"), NULL, ngx_http_variable_header, |
| 533 | 111 offsetof(ngx_http_request_t, headers_in.content_length), 0, 0 }, |
| 509 | 112 |
| 637 | 113 { ngx_string("content_type"), NULL, ngx_http_variable_header, |
| 533 | 114 offsetof(ngx_http_request_t, headers_in.content_type), 0, 0 }, |
| 509 | 115 |
| 637 | 116 { ngx_string("host"), NULL, ngx_http_variable_host, 0, 0, 0 }, |
| 509 | 117 |
| 637 | 118 { ngx_string("remote_addr"), NULL, ngx_http_variable_remote_addr, 0, 0, 0 }, |
| 499 | 119 |
| 637 | 120 { ngx_string("remote_port"), NULL, ngx_http_variable_remote_port, 0, 0, 0 }, |
| 509 | 121 |
| 637 | 122 { ngx_string("server_addr"), NULL, ngx_http_variable_server_addr, 0, 0, 0 }, |
| 509 | 123 |
| 637 | 124 { ngx_string("server_port"), NULL, ngx_http_variable_server_port, 0, 0, 0 }, |
| 509 | 125 |
| 637 | 126 { ngx_string("server_protocol"), NULL, ngx_http_variable_request, |
| 533 | 127 offsetof(ngx_http_request_t, http_protocol), 0, 0 }, |
| 509 | 128 |
| 731 | 129 { ngx_string("scheme"), NULL, ngx_http_variable_scheme, 0, 0, 0 }, |
| 130 | |
| 637 | 131 { ngx_string("request_uri"), NULL, ngx_http_variable_request, |
| 533 | 132 offsetof(ngx_http_request_t, unparsed_uri), 0, 0 }, |
| 499 | 133 |
| 637 | 134 { ngx_string("uri"), NULL, ngx_http_variable_request, |
| 135 offsetof(ngx_http_request_t, uri), | |
| 136 NGX_HTTP_VAR_NOCACHABLE, 0 }, | |
| 137 | |
| 138 { ngx_string("document_uri"), NULL, ngx_http_variable_request, | |
| 573 | 139 offsetof(ngx_http_request_t, uri), |
| 140 NGX_HTTP_VAR_NOCACHABLE, 0 }, | |
| 141 | |
| 637 | 142 { ngx_string("request"), NULL, ngx_http_variable_request, |
| 569 | 143 offsetof(ngx_http_request_t, request_line), 0, 0 }, |
| 144 | |
| 637 | 145 { ngx_string("document_root"), NULL, |
| 671 | 146 ngx_http_variable_document_root, 0, NGX_HTTP_VAR_NOCACHABLE, 0 }, |
| 509 | 147 |
| 637 | 148 { ngx_string("query_string"), NULL, ngx_http_variable_request, |
| 509 | 149 offsetof(ngx_http_request_t, args), |
| 533 | 150 NGX_HTTP_VAR_NOCACHABLE, 0 }, |
| 499 | 151 |
| 637 | 152 { ngx_string("args"), NULL, ngx_http_variable_request, |
| 589 | 153 offsetof(ngx_http_request_t, args), |
| 154 NGX_HTTP_VAR_NOCACHABLE, 0 }, | |
| 155 | |
| 637 | 156 { ngx_string("request_filename"), NULL, |
| 157 ngx_http_variable_request_filename, 0, | |
| 533 | 158 NGX_HTTP_VAR_NOCACHABLE, 0 }, |
| 509 | 159 |
| 637 | 160 { ngx_string("server_name"), NULL, ngx_http_variable_request, |
| 533 | 161 offsetof(ngx_http_request_t, server_name), 0, 0 }, |
| 509 | 162 |
| 637 | 163 { ngx_string("request_method"), NULL, |
| 164 ngx_http_variable_request_method, 0, 0, 0 }, | |
| 509 | 165 |
| 637 | 166 { ngx_string("remote_user"), NULL, ngx_http_variable_remote_user, 0, 0, 0 }, |
| 509 | 167 |
| 637 | 168 { ngx_string("body_bytes_sent"), NULL, ngx_http_variable_body_bytes_sent, |
| 611 | 169 0, 0, 0 }, |
| 170 | |
| 637 | 171 { ngx_string("request_completion"), NULL, |
| 172 ngx_http_variable_request_completion, | |
| 629 | 173 0, 0, 0 }, |
| 174 | |
| 759 | 175 { ngx_string("request_body_file"), NULL, |
| 176 ngx_http_variable_request_body_file, | |
| 177 0, 0, 0 }, | |
| 178 | |
| 641 | 179 { ngx_string("sent_http_content_type"), NULL, |
| 180 ngx_http_variable_sent_content_type, 0, 0, 0 }, | |
| 181 | |
| 182 { ngx_string("sent_http_content_length"), NULL, | |
| 183 ngx_http_variable_sent_content_length, 0, 0, 0 }, | |
| 184 | |
| 185 { ngx_string("sent_http_last_modified"), NULL, | |
| 186 ngx_http_variable_sent_last_modified, 0, 0, 0 }, | |
| 187 | |
| 188 { ngx_string("sent_http_connection"), NULL, | |
| 189 ngx_http_variable_sent_connection, 0, 0, 0 }, | |
| 190 | |
| 191 { ngx_string("sent_http_keep_alive"), NULL, | |
| 192 ngx_http_variable_sent_keep_alive, 0, 0, 0 }, | |
| 193 | |
| 194 { ngx_string("sent_http_transfer_encoding"), NULL, | |
| 195 ngx_http_variable_sent_transfer_encoding, 0, 0, 0 }, | |
| 196 | |
| 197 { ngx_string("sent_http_cache_control"), NULL, ngx_http_variable_headers, | |
| 198 offsetof(ngx_http_request_t, headers_out.cache_control), 0, 0 }, | |
| 199 | |
| 637 | 200 { ngx_string("limit_rate"), ngx_http_variable_request_set_size, |
| 201 ngx_http_variable_request, | |
| 202 offsetof(ngx_http_request_t, limit_rate), | |
| 203 NGX_HTTP_VAR_CHANGABLE|NGX_HTTP_VAR_NOCACHABLE, 0 }, | |
| 204 | |
| 205 { ngx_null_string, NULL, NULL, 0, 0, 0 } | |
| 499 | 206 }; |
| 207 | |
| 208 | |
| 577 | 209 ngx_http_variable_value_t ngx_http_variable_null_value = |
| 210 ngx_http_variable(""); | |
| 211 ngx_http_variable_value_t ngx_http_variable_true_value = | |
| 212 ngx_http_variable("1"); | |
| 213 | |
| 214 | |
| 499 | 215 ngx_http_variable_t * |
| 509 | 216 ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags) |
| 217 { | |
| 611 | 218 ngx_int_t rc; |
| 509 | 219 ngx_uint_t i; |
| 611 | 220 ngx_hash_key_t *key; |
| 509 | 221 ngx_http_variable_t *v; |
| 222 ngx_http_core_main_conf_t *cmcf; | |
| 223 | |
| 224 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
| 225 | |
| 611 | 226 key = cmcf->variables_keys->keys.elts; |
| 227 for (i = 0; i < cmcf->variables_keys->keys.nelts; i++) { | |
| 228 if (name->len != key[i].key.len | |
| 229 || ngx_strncasecmp(name->data, key[i].key.data, name->len) != 0) | |
| 509 | 230 { |
| 231 continue; | |
| 232 } | |
| 233 | |
| 611 | 234 v = key[i].value; |
| 235 | |
| 236 if (!(v->flags & NGX_HTTP_VAR_CHANGABLE)) { | |
| 509 | 237 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 238 "the duplicate \"%V\" variable", name); | |
| 239 return NULL; | |
| 240 } | |
| 241 | |
| 611 | 242 return v; |
| 509 | 243 } |
| 244 | |
| 611 | 245 v = ngx_palloc(cf->pool, sizeof(ngx_http_variable_t)); |
| 509 | 246 if (v == NULL) { |
| 247 return NULL; | |
| 248 } | |
| 249 | |
| 250 v->name.len = name->len; | |
| 251 v->name.data = ngx_palloc(cf->pool, name->len); | |
| 252 if (v->name.data == NULL) { | |
| 253 return NULL; | |
| 254 } | |
| 255 | |
| 256 for (i = 0; i < name->len; i++) { | |
| 257 v->name.data[i] = ngx_tolower(name->data[i]); | |
| 258 } | |
| 259 | |
| 637 | 260 v->set_handler = NULL; |
| 261 v->get_handler = NULL; | |
| 509 | 262 v->data = 0; |
| 263 v->flags = flags; | |
| 533 | 264 v->index = 0; |
| 509 | 265 |
| 611 | 266 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, 0); |
| 267 | |
| 268 if (rc == NGX_ERROR) { | |
| 269 return NULL; | |
| 270 } | |
| 271 | |
| 272 if (rc == NGX_BUSY) { | |
| 273 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 274 "conflicting variable name \"%V\"", name); | |
| 275 return NULL; | |
| 276 } | |
| 277 | |
| 509 | 278 return v; |
| 279 } | |
| 280 | |
| 281 | |
| 282 ngx_int_t | |
| 283 ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name) | |
| 499 | 284 { |
| 501 | 285 ngx_uint_t i; |
| 286 ngx_http_variable_t *v; | |
| 499 | 287 ngx_http_core_main_conf_t *cmcf; |
| 288 | |
| 289 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
| 290 | |
| 501 | 291 v = cmcf->variables.elts; |
| 292 | |
| 293 if (v == NULL) { | |
| 499 | 294 if (ngx_array_init(&cmcf->variables, cf->pool, 4, |
| 295 sizeof(ngx_http_variable_t)) == NGX_ERROR) | |
| 296 { | |
| 509 | 297 return NGX_ERROR; |
| 499 | 298 } |
| 501 | 299 |
| 300 } else { | |
| 301 for (i = 0; i < cmcf->variables.nelts; i++) { | |
| 302 if (name->len != v[i].name.len | |
| 303 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0) | |
| 304 { | |
| 305 continue; | |
| 306 } | |
| 307 | |
| 509 | 308 return i; |
| 501 | 309 } |
| 499 | 310 } |
| 311 | |
| 501 | 312 v = ngx_array_push(&cmcf->variables); |
| 313 if (v == NULL) { | |
| 509 | 314 return NGX_ERROR; |
| 499 | 315 } |
| 316 | |
| 501 | 317 v->name.len = name->len; |
| 318 v->name.data = ngx_palloc(cf->pool, name->len); | |
| 319 if (v->name.data == NULL) { | |
| 509 | 320 return NGX_ERROR; |
| 501 | 321 } |
| 499 | 322 |
| 501 | 323 for (i = 0; i < name->len; i++) { |
| 509 | 324 v->name.data[i] = ngx_tolower(name->data[i]); |
| 501 | 325 } |
| 326 | |
| 637 | 327 v->set_handler = NULL; |
| 328 v->get_handler = NULL; | |
| 501 | 329 v->data = 0; |
| 509 | 330 v->flags = 0; |
| 533 | 331 v->index = cmcf->variables.nelts - 1; |
| 501 | 332 |
| 509 | 333 return cmcf->variables.nelts - 1; |
| 499 | 334 } |
| 335 | |
| 336 | |
| 337 ngx_http_variable_value_t * | |
| 338 ngx_http_get_indexed_variable(ngx_http_request_t *r, ngx_uint_t index) | |
| 339 { | |
| 501 | 340 ngx_http_variable_t *v; |
| 499 | 341 ngx_http_core_main_conf_t *cmcf; |
| 342 | |
| 343 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
| 344 | |
| 553 | 345 if (cmcf->variables.nelts <= index) { |
| 499 | 346 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
| 347 "unknown variable index: %d", index); | |
| 348 return NULL; | |
| 349 } | |
| 350 | |
| 573 | 351 if (r->variables[index].not_found || r->variables[index].valid) { |
| 352 return &r->variables[index]; | |
| 501 | 353 } |
| 499 | 354 |
| 501 | 355 v = cmcf->variables.elts; |
| 499 | 356 |
| 637 | 357 if (v[index].get_handler(r, &r->variables[index], v[index].data) |
| 358 == NGX_OK) | |
| 359 { | |
| 573 | 360 if (v[index].flags & NGX_HTTP_VAR_NOCACHABLE) { |
| 361 r->variables[index].no_cachable = 1; | |
| 499 | 362 } |
| 573 | 363 |
| 364 return &r->variables[index]; | |
| 499 | 365 } |
| 366 | |
| 657 | 367 r->variables[index].valid = 0; |
| 368 r->variables[index].not_found = 1; | |
| 369 | |
| 798 | 370 return NULL; |
| 573 | 371 } |
| 372 | |
| 373 | |
| 374 ngx_http_variable_value_t * | |
| 375 ngx_http_get_flushed_variable(ngx_http_request_t *r, ngx_uint_t index) | |
| 376 { | |
| 377 ngx_http_variable_value_t *v; | |
| 378 | |
| 379 v = &r->variables[index]; | |
| 380 | |
| 381 if (v->valid) { | |
| 382 if (!v->no_cachable) { | |
| 383 return v; | |
| 384 } | |
| 385 | |
| 386 v->valid = 0; | |
| 387 v->not_found = 0; | |
| 509 | 388 } |
| 501 | 389 |
| 573 | 390 return ngx_http_get_indexed_variable(r, index); |
| 499 | 391 } |
| 392 | |
| 393 | |
| 394 ngx_http_variable_value_t * | |
| 635 | 395 ngx_http_get_variable(ngx_http_request_t *r, ngx_str_t *name, ngx_uint_t key, |
| 396 ngx_uint_t nowarn) | |
| 499 | 397 { |
| 501 | 398 ngx_http_variable_t *v; |
| 573 | 399 ngx_http_variable_value_t *vv; |
| 499 | 400 ngx_http_core_main_conf_t *cmcf; |
| 401 | |
| 402 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
| 403 | |
| 611 | 404 v = ngx_hash_find(&cmcf->variables_hash, key, name->data, name->len); |
| 499 | 405 |
| 611 | 406 if (v) { |
| 407 if (v->flags & NGX_HTTP_VAR_INDEXED) { | |
| 408 return ngx_http_get_indexed_variable(r, v->index); | |
| 519 | 409 |
| 410 } else { | |
| 499 | 411 |
| 573 | 412 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t)); |
| 501 | 413 |
| 637 | 414 if (vv && v->get_handler(r, vv, v->data) == NGX_OK) { |
| 573 | 415 return vv; |
| 416 } | |
| 509 | 417 |
| 573 | 418 return NULL; |
| 419 } | |
| 509 | 420 } |
| 421 | |
| 422 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t)); | |
| 423 if (vv == NULL) { | |
| 424 return NULL; | |
| 425 } | |
| 426 | |
| 573 | 427 if (ngx_strncmp(name->data, "http_", 5) == 0) { |
| 499 | 428 |
| 577 | 429 if (ngx_http_variable_unknown_header_in(r, vv, (uintptr_t) name) |
| 430 == NGX_OK) | |
| 431 { | |
| 432 return vv; | |
| 433 } | |
| 434 | |
| 435 return NULL; | |
| 436 } | |
| 437 | |
| 438 if (ngx_strncmp(name->data, "sent_http_", 10) == 0) { | |
| 439 | |
| 440 if (ngx_http_variable_unknown_header_out(r, vv, (uintptr_t) name) | |
| 441 == NGX_OK) | |
| 573 | 442 { |
| 443 return vv; | |
| 444 } | |
| 499 | 445 |
| 446 return NULL; | |
| 447 } | |
| 448 | |
| 635 | 449 vv->not_found = 1; |
| 573 | 450 |
| 635 | 451 if (nowarn == 0) { |
| 452 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 453 "unknown \"%V\" variable", name); | |
| 454 } | |
| 499 | 455 |
| 501 | 456 return vv; |
| 499 | 457 } |
| 458 | |
| 459 | |
| 573 | 460 static ngx_int_t |
| 461 ngx_http_variable_request(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
| 462 uintptr_t data) | |
| 463 { | |
| 464 ngx_str_t *s; | |
| 465 | |
| 466 s = (ngx_str_t *) ((char *) r + data); | |
| 467 | |
| 468 if (s->data) { | |
| 469 v->len = s->len; | |
| 470 v->valid = 1; | |
| 471 v->no_cachable = 0; | |
| 472 v->not_found = 0; | |
| 473 v->data = s->data; | |
| 474 | |
| 475 } else { | |
| 476 v->not_found = 1; | |
| 477 } | |
| 478 | |
| 479 return NGX_OK; | |
| 480 } | |
| 481 | |
| 482 | |
| 637 | 483 static void |
| 484 ngx_http_variable_request_set_size(ngx_http_request_t *r, | |
| 485 ngx_http_variable_value_t *v, uintptr_t data) | |
| 486 { | |
| 487 ssize_t s, *sp; | |
| 488 ngx_str_t val; | |
| 489 | |
| 490 val.len = v->len & 0xffff; | |
| 491 val.data = v->data; | |
| 492 | |
| 493 s = ngx_parse_size(&val); | |
| 494 | |
| 495 if (s == NGX_ERROR) { | |
| 496 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 497 "invalid size \"%V\"", &val); | |
| 498 return; | |
| 499 } | |
| 500 | |
| 501 sp = (ssize_t *) ((char *) r + data); | |
| 502 | |
| 503 *sp = s; | |
| 504 | |
| 505 return; | |
| 506 } | |
| 507 | |
| 508 | |
| 573 | 509 static ngx_int_t |
| 510 ngx_http_variable_header(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
| 511 uintptr_t data) | |
| 515 | 512 { |
| 573 | 513 ngx_table_elt_t *h; |
| 514 | |
| 515 h = *(ngx_table_elt_t **) ((char *) r + data); | |
| 516 | |
| 517 if (h) { | |
| 518 v->len = h->value.len; | |
| 519 v->valid = 1; | |
| 520 v->no_cachable = 0; | |
| 521 v->not_found = 0; | |
| 522 v->data = h->value.data; | |
| 523 | |
| 524 } else { | |
| 525 v->not_found = 1; | |
| 526 } | |
| 527 | |
| 528 return NGX_OK; | |
| 529 } | |
| 530 | |
| 531 | |
| 532 static ngx_int_t | |
| 533 ngx_http_variable_headers(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
| 534 uintptr_t data) | |
| 535 { | |
| 667 | 536 ssize_t len; |
| 573 | 537 u_char *p; |
| 667 | 538 ngx_uint_t i, n; |
| 573 | 539 ngx_array_t *a; |
| 540 ngx_table_elt_t **h; | |
| 515 | 541 |
| 542 a = (ngx_array_t *) ((char *) r + data); | |
| 543 | |
| 667 | 544 n = a->nelts; |
| 545 | |
| 546 if (n == 0) { | |
| 573 | 547 v->not_found = 1; |
| 548 return NGX_OK; | |
| 515 | 549 } |
| 550 | |
| 573 | 551 v->valid = 1; |
| 552 v->no_cachable = 0; | |
| 553 v->not_found = 0; | |
| 515 | 554 |
| 555 h = a->elts; | |
| 556 | |
| 667 | 557 if (n == 1) { |
| 573 | 558 v->len = (*h)->value.len; |
| 559 v->data = (*h)->value.data; | |
| 515 | 560 |
| 573 | 561 return NGX_OK; |
| 515 | 562 } |
| 563 | |
| 667 | 564 len = - (ssize_t) (sizeof("; ") - 1); |
| 573 | 565 |
| 667 | 566 for (i = 0; i < n; i++) { |
| 573 | 567 len += h[i]->value.len + sizeof("; ") - 1; |
| 515 | 568 } |
| 569 | |
| 573 | 570 p = ngx_palloc(r->pool, len); |
| 571 if (p == NULL) { | |
| 572 return NGX_ERROR; | |
| 573 } | |
| 574 | |
| 575 v->len = len; | |
| 576 v->data = p; | |
| 515 | 577 |
| 578 for (i = 0; /* void */ ; i++) { | |
| 573 | 579 p = ngx_copy(p, h[i]->value.data, h[i]->value.len); |
| 515 | 580 |
| 667 | 581 if (i == n - 1) { |
| 515 | 582 break; |
| 583 } | |
| 584 | |
| 585 *p++ = ';'; *p++ = ' '; | |
| 586 } | |
| 587 | |
| 573 | 588 return NGX_OK; |
| 515 | 589 } |
| 590 | |
| 591 | |
| 573 | 592 static ngx_int_t |
| 577 | 593 ngx_http_variable_unknown_header_in(ngx_http_request_t *r, |
| 594 ngx_http_variable_value_t *v, uintptr_t data) | |
| 595 { | |
| 596 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, | |
| 597 &r->headers_in.headers.part, | |
| 598 sizeof("http_") - 1); | |
| 599 } | |
| 600 | |
| 601 | |
| 602 static ngx_int_t | |
| 603 ngx_http_variable_unknown_header_out(ngx_http_request_t *r, | |
| 573 | 604 ngx_http_variable_value_t *v, uintptr_t data) |
| 499 | 605 { |
| 577 | 606 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, |
| 607 &r->headers_out.headers.part, | |
| 608 sizeof("sent_http_") - 1); | |
| 609 } | |
| 501 | 610 |
| 577 | 611 |
| 612 static ngx_int_t | |
| 613 ngx_http_variable_unknown_header(ngx_http_variable_value_t *v, ngx_str_t *var, | |
| 614 ngx_list_part_t *part, size_t prefix) | |
| 615 { | |
| 573 | 616 u_char ch; |
| 617 ngx_uint_t i, n; | |
| 618 ngx_table_elt_t *header; | |
| 499 | 619 |
| 620 header = part->elts; | |
| 621 | |
| 622 for (i = 0; /* void */ ; i++) { | |
| 623 | |
| 624 if (i >= part->nelts) { | |
| 625 if (part->next == NULL) { | |
| 626 break; | |
| 627 } | |
| 628 | |
| 629 part = part->next; | |
| 630 header = part->elts; | |
| 631 i = 0; | |
| 632 } | |
| 633 | |
| 577 | 634 for (n = 0; n + prefix < var->len && n < header[i].key.len; n++) { |
| 499 | 635 ch = header[i].key.data[n]; |
| 636 | |
| 509 | 637 if (ch >= 'A' && ch <= 'Z') { |
| 638 ch |= 0x20; | |
| 499 | 639 |
| 640 } else if (ch == '-') { | |
| 641 ch = '_'; | |
| 642 } | |
| 643 | |
| 577 | 644 if (var->data[n + prefix] != ch) { |
| 499 | 645 break; |
| 646 } | |
| 647 } | |
| 648 | |
|
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649 if (n + prefix == var->len && n == header[i].key.len) { |
| 573 | 650 v->len = header[i].value.len; |
| 651 v->valid = 1; | |
| 652 v->no_cachable = 0; | |
| 653 v->not_found = 0; | |
| 654 v->data = header[i].value.data; | |
| 499 | 655 |
| 573 | 656 return NGX_OK; |
| 499 | 657 } |
| 658 } | |
| 659 | |
| 573 | 660 v->not_found = 1; |
| 661 | |
| 662 return NGX_OK; | |
| 509 | 663 } |
| 664 | |
| 665 | |
| 573 | 666 static ngx_int_t |
| 667 ngx_http_variable_host(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
| 668 uintptr_t data) | |
| 509 | 669 { |
| 864 | 670 if (r->host_start == NULL) { |
| 671 | |
| 672 if (r->headers_in.host) { | |
| 673 v->len = r->headers_in.host_name_len; | |
| 674 v->data = r->headers_in.host->value.data; | |
| 675 | |
| 676 } else { | |
| 677 v->len = r->server_name.len; | |
| 678 v->data = r->server_name.data; | |
| 679 } | |
| 509 | 680 |
|
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681 } else if (r->host_end) { |
| 864 | 682 v->len = r->host_end - r->host_start; |
| 683 v->data = r->host_start; | |
|
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684 |
|
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685 } else { |
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686 v->not_found = 1; |
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|
687 return NGX_OK; |
| 509 | 688 } |
| 689 | |
| 573 | 690 v->valid = 1; |
| 691 v->no_cachable = 0; | |
| 692 v->not_found = 0; | |
| 509 | 693 |
| 573 | 694 return NGX_OK; |
| 499 | 695 } |
| 696 | |
| 697 | |
| 573 | 698 static ngx_int_t |
| 699 ngx_http_variable_remote_addr(ngx_http_request_t *r, | |
| 700 ngx_http_variable_value_t *v, uintptr_t data) | |
| 499 | 701 { |
| 573 | 702 v->len = r->connection->addr_text.len; |
| 703 v->valid = 1; | |
| 704 v->no_cachable = 0; | |
| 705 v->not_found = 0; | |
| 706 v->data = r->connection->addr_text.data; | |
| 499 | 707 |
| 573 | 708 return NGX_OK; |
| 499 | 709 } |
| 710 | |
| 711 | |
| 573 | 712 static ngx_int_t |
| 713 ngx_http_variable_remote_port(ngx_http_request_t *r, | |
| 714 ngx_http_variable_value_t *v, uintptr_t data) | |
| 499 | 715 { |
| 573 | 716 ngx_uint_t port; |
| 717 struct sockaddr_in *sin; | |
| 509 | 718 |
| 573 | 719 v->len = 0; |
| 720 v->valid = 1; | |
| 721 v->no_cachable = 0; | |
| 722 v->not_found = 0; | |
| 509 | 723 |
| 573 | 724 v->data = ngx_palloc(r->pool, sizeof("65535") - 1); |
| 725 if (v->data == NULL) { | |
| 726 return NGX_ERROR; | |
| 509 | 727 } |
| 728 | |
| 729 /* AF_INET only */ | |
| 577 | 730 |
| 509 | 731 if (r->connection->sockaddr->sa_family == AF_INET) { |
| 732 sin = (struct sockaddr_in *) r->connection->sockaddr; | |
| 577 | 733 |
| 509 | 734 port = ntohs(sin->sin_port); |
| 577 | 735 |
| 509 | 736 if (port > 0 && port < 65536) { |
| 573 | 737 v->len = ngx_sprintf(v->data, "%ui", port) - v->data; |
| 509 | 738 } |
| 739 } | |
| 740 | |
| 573 | 741 return NGX_OK; |
| 509 | 742 } |
| 743 | |
| 744 | |
| 573 | 745 static ngx_int_t |
| 746 ngx_http_variable_server_addr(ngx_http_request_t *r, | |
| 747 ngx_http_variable_value_t *v, uintptr_t data) | |
| 509 | 748 { |
| 573 | 749 socklen_t len; |
| 750 ngx_connection_t *c; | |
| 751 struct sockaddr_in sin; | |
| 499 | 752 |
| 573 | 753 v->data = ngx_palloc(r->pool, INET_ADDRSTRLEN); |
| 754 if (v->data == NULL) { | |
| 755 return NGX_ERROR; | |
| 509 | 756 } |
| 757 | |
| 758 c = r->connection; | |
| 759 | |
| 760 if (r->in_addr == 0) { | |
| 761 len = sizeof(struct sockaddr_in); | |
| 762 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) { | |
|
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763 ngx_connection_error(c, ngx_socket_errno, "getsockname() failed"); |
| 573 | 764 return NGX_ERROR; |
| 509 | 765 } |
| 766 | |
| 767 r->in_addr = sin.sin_addr.s_addr; | |
| 768 } | |
| 769 | |
| 573 | 770 v->len = ngx_inet_ntop(c->listening->family, &r->in_addr, |
| 771 v->data, INET_ADDRSTRLEN); | |
| 772 v->valid = 1; | |
| 773 v->no_cachable = 0; | |
| 774 v->not_found = 0; | |
| 499 | 775 |
| 573 | 776 return NGX_OK; |
| 499 | 777 } |
| 778 | |
| 779 | |
| 573 | 780 static ngx_int_t |
| 781 ngx_http_variable_server_port(ngx_http_request_t *r, | |
| 782 ngx_http_variable_value_t *v, uintptr_t data) | |
| 509 | 783 { |
| 573 | 784 v->len = r->port_text->len - 1; |
| 785 v->valid = 1; | |
| 786 v->no_cachable = 0; | |
| 787 v->not_found = 0; | |
| 788 v->data = r->port_text->data + 1; | |
| 509 | 789 |
| 573 | 790 return NGX_OK; |
| 509 | 791 } |
| 792 | |
| 793 | |
| 573 | 794 static ngx_int_t |
| 731 | 795 ngx_http_variable_scheme(ngx_http_request_t *r, |
| 796 ngx_http_variable_value_t *v, uintptr_t data) | |
| 797 { | |
| 798 #if (NGX_HTTP_SSL) | |
| 799 | |
| 800 if (r->connection->ssl) { | |
| 801 v->len = sizeof("https") - 1; | |
| 802 v->valid = 1; | |
| 803 v->no_cachable = 0; | |
| 804 v->not_found = 0; | |
| 732 | 805 v->data = (u_char *) "https"; |
| 731 | 806 |
| 807 return NGX_OK; | |
| 808 } | |
| 809 | |
| 810 #endif | |
| 811 | |
| 812 v->len = sizeof("http") - 1; | |
| 813 v->valid = 1; | |
| 814 v->no_cachable = 0; | |
| 815 v->not_found = 0; | |
| 732 | 816 v->data = (u_char *) "http"; |
| 731 | 817 |
| 818 return NGX_OK; | |
| 819 } | |
| 820 | |
| 821 | |
| 822 static ngx_int_t | |
| 573 | 823 ngx_http_variable_document_root(ngx_http_request_t *r, |
| 824 ngx_http_variable_value_t *v, uintptr_t data) | |
| 499 | 825 { |
| 671 | 826 ngx_str_t path; |
| 573 | 827 ngx_http_core_loc_conf_t *clcf; |
| 509 | 828 |
| 829 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 830 | |
| 671 | 831 if (clcf->root_lengths == NULL) { |
| 832 v->len = clcf->root.len; | |
| 833 v->valid = 1; | |
| 834 v->no_cachable = 0; | |
| 835 v->not_found = 0; | |
| 836 v->data = clcf->root.data; | |
| 837 | |
| 838 } else { | |
| 839 if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 0, | |
| 840 clcf->root_values->elts) | |
| 841 == NULL) | |
| 842 { | |
| 843 return NGX_ERROR; | |
| 844 } | |
| 845 | |
| 846 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path) == NGX_ERROR) { | |
| 847 return NGX_ERROR; | |
| 848 } | |
| 849 | |
| 850 v->len = path.len; | |
| 851 v->valid = 1; | |
| 852 v->no_cachable = 0; | |
| 853 v->not_found = 0; | |
| 854 v->data = path.data; | |
| 855 } | |
| 509 | 856 |
| 573 | 857 return NGX_OK; |
| 509 | 858 } |
| 859 | |
| 860 | |
| 573 | 861 static ngx_int_t |
| 862 ngx_http_variable_request_filename(ngx_http_request_t *r, | |
| 863 ngx_http_variable_value_t *v, uintptr_t data) | |
| 509 | 864 { |
| 773 | 865 size_t root; |
| 573 | 866 ngx_str_t path; |
| 499 | 867 |
| 773 | 868 if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) { |
| 573 | 869 return NGX_ERROR; |
| 557 | 870 } |
| 509 | 871 |
| 557 | 872 /* ngx_http_map_uri_to_path() allocates memory for terminating '\0' */ |
| 509 | 873 |
| 573 | 874 v->len = path.len - 1; |
| 875 v->valid = 1; | |
| 876 v->no_cachable = 0; | |
| 877 v->not_found = 0; | |
| 878 v->data = path.data; | |
| 499 | 879 |
| 573 | 880 return NGX_OK; |
| 499 | 881 } |
| 882 | |
| 883 | |
| 573 | 884 static ngx_int_t |
| 885 ngx_http_variable_request_method(ngx_http_request_t *r, | |
| 886 ngx_http_variable_value_t *v, uintptr_t data) | |
| 561 | 887 { |
| 647 | 888 if (r->main->method_name.data) { |
| 889 v->len = r->main->method_name.len; | |
| 573 | 890 v->valid = 1; |
| 891 v->no_cachable = 0; | |
| 892 v->not_found = 0; | |
| 647 | 893 v->data = r->main->method_name.data; |
| 573 | 894 |
| 895 } else { | |
| 896 v->not_found = 1; | |
| 561 | 897 } |
| 898 | |
| 573 | 899 return NGX_OK; |
| 561 | 900 } |
| 901 | |
| 902 | |
| 573 | 903 static ngx_int_t |
| 904 ngx_http_variable_remote_user(ngx_http_request_t *r, | |
| 905 ngx_http_variable_value_t *v, uintptr_t data) | |
| 539 | 906 { |
| 573 | 907 ngx_int_t rc; |
| 539 | 908 |
| 909 rc = ngx_http_auth_basic_user(r); | |
| 910 | |
| 911 if (rc == NGX_DECLINED) { | |
| 573 | 912 v->not_found = 1; |
| 913 return NGX_OK; | |
| 539 | 914 } |
| 915 | |
| 916 if (rc == NGX_ERROR) { | |
| 573 | 917 return NGX_ERROR; |
| 539 | 918 } |
| 919 | |
| 573 | 920 v->len = r->headers_in.user.len; |
| 921 v->valid = 1; | |
| 922 v->no_cachable = 0; | |
| 923 v->not_found = 0; | |
| 924 v->data = r->headers_in.user.data; | |
| 571 | 925 |
| 573 | 926 return NGX_OK; |
| 571 | 927 } |
| 928 | |
| 929 | |
| 611 | 930 static ngx_int_t |
| 931 ngx_http_variable_body_bytes_sent(ngx_http_request_t *r, | |
| 932 ngx_http_variable_value_t *v, uintptr_t data) | |
| 933 { | |
| 934 off_t sent; | |
| 935 u_char *p; | |
| 936 | |
| 937 sent = r->connection->sent - r->header_size; | |
| 938 | |
| 939 if (sent < 0) { | |
| 940 sent = 0; | |
| 941 } | |
| 942 | |
| 943 p = ngx_palloc(r->pool, NGX_OFF_T_LEN); | |
| 944 if (p == NULL) { | |
| 945 return NGX_ERROR; | |
| 946 } | |
| 947 | |
| 948 v->len = ngx_sprintf(p, "%O", sent) - p; | |
| 949 v->valid = 1; | |
| 950 v->no_cachable = 0; | |
| 951 v->not_found = 0; | |
| 952 v->data = p; | |
| 953 | |
| 954 return NGX_OK; | |
| 955 } | |
| 956 | |
| 957 | |
| 629 | 958 static ngx_int_t |
| 641 | 959 ngx_http_variable_sent_content_type(ngx_http_request_t *r, |
| 960 ngx_http_variable_value_t *v, uintptr_t data) | |
| 961 { | |
| 962 if (r->headers_out.content_type.len) { | |
| 963 v->len = r->headers_out.content_type.len; | |
| 964 v->valid = 1; | |
| 965 v->no_cachable = 0; | |
| 966 v->not_found = 0; | |
| 967 v->data = r->headers_out.content_type.data; | |
| 968 | |
| 969 } else { | |
| 970 v->not_found = 1; | |
| 971 } | |
| 972 | |
| 973 return NGX_OK; | |
| 974 } | |
| 975 | |
| 976 | |
| 977 static ngx_int_t | |
| 978 ngx_http_variable_sent_content_length(ngx_http_request_t *r, | |
| 979 ngx_http_variable_value_t *v, uintptr_t data) | |
| 980 { | |
| 981 u_char *p; | |
| 982 | |
| 983 if (r->headers_out.content_length) { | |
| 984 v->len = r->headers_out.content_length->value.len; | |
| 985 v->valid = 1; | |
| 986 v->no_cachable = 0; | |
| 987 v->not_found = 0; | |
| 988 v->data = r->headers_out.content_length->value.data; | |
| 989 | |
| 990 return NGX_OK; | |
| 991 } | |
| 992 | |
| 993 if (r->headers_out.content_length_n >= 0) { | |
| 994 p = ngx_palloc(r->pool, NGX_OFF_T_LEN); | |
| 995 if (p == NULL) { | |
| 996 return NGX_ERROR; | |
| 997 } | |
| 998 | |
| 999 v->len = ngx_sprintf(p, "%O", r->headers_out.content_length_n) - p; | |
| 1000 v->valid = 1; | |
| 1001 v->no_cachable = 0; | |
| 1002 v->not_found = 0; | |
| 1003 v->data = p; | |
| 1004 | |
| 1005 return NGX_OK; | |
| 1006 } | |
| 1007 | |
| 1008 v->not_found = 1; | |
| 1009 | |
| 1010 return NGX_OK; | |
| 1011 } | |
| 1012 | |
| 1013 | |
| 1014 static ngx_int_t | |
| 1015 ngx_http_variable_sent_last_modified(ngx_http_request_t *r, | |
| 1016 ngx_http_variable_value_t *v, uintptr_t data) | |
| 1017 { | |
| 1018 u_char *p; | |
| 1019 | |
| 1020 if (r->headers_out.last_modified) { | |
| 1021 v->len = r->headers_out.last_modified->value.len; | |
| 1022 v->valid = 1; | |
| 1023 v->no_cachable = 0; | |
| 1024 v->not_found = 0; | |
| 1025 v->data = r->headers_out.last_modified->value.data; | |
| 1026 | |
| 1027 return NGX_OK; | |
| 1028 } | |
| 1029 | |
| 1030 if (r->headers_out.last_modified_time >= 0) { | |
| 1031 p = ngx_palloc(r->pool, | |
| 1032 sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT") - 1); | |
| 1033 if (p == NULL) { | |
| 1034 return NGX_ERROR; | |
| 1035 } | |
| 1036 | |
| 1037 v->len = ngx_http_time(p, r->headers_out.last_modified_time) - p; | |
| 1038 v->valid = 1; | |
| 1039 v->no_cachable = 0; | |
| 1040 v->not_found = 0; | |
| 1041 v->data = p; | |
| 1042 | |
| 1043 return NGX_OK; | |
| 1044 } | |
| 1045 | |
| 1046 v->not_found = 1; | |
| 1047 | |
| 1048 return NGX_OK; | |
| 1049 } | |
| 1050 | |
| 1051 | |
| 1052 static ngx_int_t | |
| 1053 ngx_http_variable_sent_connection(ngx_http_request_t *r, | |
| 1054 ngx_http_variable_value_t *v, uintptr_t data) | |
| 1055 { | |
| 1056 size_t len; | |
| 1057 char *p; | |
| 1058 | |
| 1059 if (r->keepalive) { | |
| 1060 len = sizeof("keep-alive") - 1; | |
| 1061 p = "keep-alive"; | |
| 1062 | |
| 1063 } else { | |
| 1064 len = sizeof("close") - 1; | |
| 1065 p = "close"; | |
| 1066 } | |
| 1067 | |
| 1068 v->len = len; | |
| 1069 v->valid = 1; | |
| 1070 v->no_cachable = 0; | |
| 1071 v->not_found = 0; | |
| 1072 v->data = (u_char *) p; | |
| 1073 | |
| 1074 return NGX_OK; | |
| 1075 } | |
| 1076 | |
| 1077 | |
| 1078 static ngx_int_t | |
| 1079 ngx_http_variable_sent_keep_alive(ngx_http_request_t *r, | |
| 1080 ngx_http_variable_value_t *v, uintptr_t data) | |
| 1081 { | |
| 1082 u_char *p; | |
| 1083 ngx_http_core_loc_conf_t *clcf; | |
| 1084 | |
| 1085 if (r->keepalive) { | |
| 1086 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 1087 | |
| 1088 if (clcf->keepalive_header) { | |
| 1089 | |
| 1090 p = ngx_palloc(r->pool, sizeof("timeout=") - 1 + NGX_TIME_T_LEN); | |
| 1091 if (p == NULL) { | |
| 1092 return NGX_ERROR; | |
| 1093 } | |
| 1094 | |
| 1095 v->len = ngx_sprintf(p, "timeout=%T", clcf->keepalive_header) - p; | |
| 1096 v->valid = 1; | |
| 1097 v->no_cachable = 0; | |
| 1098 v->not_found = 0; | |
| 1099 v->data = p; | |
| 1100 | |
| 1101 return NGX_OK; | |
| 1102 } | |
| 1103 } | |
| 1104 | |
| 1105 v->not_found = 1; | |
| 1106 | |
| 1107 return NGX_OK; | |
| 1108 } | |
| 1109 | |
| 1110 | |
| 1111 static ngx_int_t | |
| 1112 ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r, | |
| 1113 ngx_http_variable_value_t *v, uintptr_t data) | |
| 1114 { | |
| 1115 if (r->chunked) { | |
| 1116 v->len = sizeof("chunked") - 1; | |
| 1117 v->valid = 1; | |
| 1118 v->no_cachable = 0; | |
| 1119 v->not_found = 0; | |
| 1120 v->data = (u_char *) "chunked"; | |
| 1121 | |
| 1122 } else { | |
| 1123 v->not_found = 1; | |
| 1124 } | |
| 1125 | |
| 1126 return NGX_OK; | |
| 1127 } | |
| 1128 | |
| 1129 | |
| 1130 static ngx_int_t | |
| 629 | 1131 ngx_http_variable_request_completion(ngx_http_request_t *r, |
| 1132 ngx_http_variable_value_t *v, uintptr_t data) | |
| 1133 { | |
| 1134 if (r->request_complete) { | |
| 1135 v->len = 2; | |
| 1136 v->valid = 1; | |
| 1137 v->no_cachable = 0; | |
| 1138 v->not_found = 0; | |
| 1139 v->data = (u_char *) "OK"; | |
| 1140 | |
| 1141 return NGX_OK; | |
| 1142 } | |
| 1143 | |
| 1144 v->len = 0; | |
| 1145 v->valid = 1; | |
| 1146 v->no_cachable = 0; | |
| 1147 v->not_found = 0; | |
| 1148 v->data = (u_char *) ""; | |
| 1149 | |
| 1150 return NGX_OK; | |
| 1151 } | |
| 1152 | |
| 1153 | |
| 759 | 1154 static ngx_int_t |
| 1155 ngx_http_variable_request_body_file(ngx_http_request_t *r, | |
| 1156 ngx_http_variable_value_t *v, uintptr_t data) | |
| 1157 { | |
| 1158 if (r->request_body == NULL || r->request_body->temp_file == NULL) { | |
|
763
0b0f3d4854c0
variable should not be found if no request body file
Igor Sysoev <igor@sysoev.ru>
parents:
759
diff
changeset
|
1159 v->not_found = 1; |
| 759 | 1160 |
| 1161 return NGX_OK; | |
| 1162 } | |
| 1163 | |
| 1164 v->len = r->request_body->temp_file->file.name.len; | |
| 1165 v->valid = 1; | |
| 1166 v->no_cachable = 0; | |
| 1167 v->not_found = 0; | |
| 1168 v->data = r->request_body->temp_file->file.name.data; | |
| 1169 | |
| 1170 return NGX_OK; | |
| 1171 } | |
| 1172 | |
| 1173 | |
| 499 | 1174 ngx_int_t |
| 509 | 1175 ngx_http_variables_add_core_vars(ngx_conf_t *cf) |
| 499 | 1176 { |
| 611 | 1177 ngx_int_t rc; |
| 1178 ngx_http_variable_t *v; | |
| 501 | 1179 ngx_http_core_main_conf_t *cmcf; |
| 499 | 1180 |
| 509 | 1181 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); |
| 1182 | |
| 611 | 1183 cmcf->variables_keys = ngx_pcalloc(cf->temp_pool, |
| 1184 sizeof(ngx_hash_keys_arrays_t)); | |
| 1185 if (cmcf->variables_keys == NULL) { | |
| 1186 return NGX_ERROR; | |
| 1187 } | |
| 1188 | |
| 1189 cmcf->variables_keys->pool = cf->pool; | |
| 1190 cmcf->variables_keys->temp_pool = cf->pool; | |
| 1191 | |
| 1192 if (ngx_hash_keys_array_init(cmcf->variables_keys, NGX_HASH_SMALL) | |
| 1193 != NGX_OK) | |
| 509 | 1194 { |
| 499 | 1195 return NGX_ERROR; |
| 1196 } | |
| 1197 | |
| 611 | 1198 for (v = ngx_http_core_variables; v->name.len; v++) { |
| 1199 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, | |
| 1200 NGX_HASH_READONLY_KEY); | |
| 1201 | |
| 1202 if (rc == NGX_OK) { | |
| 1203 continue; | |
| 499 | 1204 } |
| 1205 | |
| 611 | 1206 if (rc == NGX_BUSY) { |
| 1207 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 1208 "conflicting variable name \"%V\"", &v->name); | |
| 1209 } | |
| 1210 | |
| 1211 return NGX_ERROR; | |
| 499 | 1212 } |
| 1213 | |
| 1214 return NGX_OK; | |
| 1215 } | |
| 509 | 1216 |
| 1217 | |
| 1218 ngx_int_t | |
| 1219 ngx_http_variables_init_vars(ngx_conf_t *cf) | |
| 1220 { | |
| 1221 ngx_uint_t i, n; | |
| 611 | 1222 ngx_hash_key_t *key; |
| 1223 ngx_hash_init_t hash; | |
| 509 | 1224 ngx_http_variable_t *v, *av; |
| 1225 ngx_http_core_main_conf_t *cmcf; | |
| 1226 | |
| 1227 /* set the handlers for the indexed http variables */ | |
| 1228 | |
| 1229 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); | |
| 1230 | |
| 1231 v = cmcf->variables.elts; | |
| 611 | 1232 key = cmcf->variables_keys->keys.elts; |
| 509 | 1233 |
| 1234 for (i = 0; i < cmcf->variables.nelts; i++) { | |
| 1235 | |
| 611 | 1236 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) { |
| 509 | 1237 |
| 611 | 1238 if (v[i].name.len == key[n].key.len |
| 1239 && ngx_strncmp(v[i].name.data, key[n].key.data, v[i].name.len) | |
| 509 | 1240 == 0) |
| 1241 { | |
| 611 | 1242 av = key[n].value; |
| 1243 | |
| 637 | 1244 v[i].get_handler = av->get_handler; |
| 611 | 1245 v[i].data = av->data; |
| 527 | 1246 |
| 611 | 1247 av->flags |= NGX_HTTP_VAR_INDEXED; |
| 1248 v[i].flags = av->flags; | |
| 509 | 1249 |
| 611 | 1250 av->index = i; |
| 533 | 1251 |
| 509 | 1252 goto next; |
| 1253 } | |
| 1254 } | |
| 1255 | |
| 1256 if (ngx_strncmp(v[i].name.data, "http_", 5) == 0) { | |
| 637 | 1257 v[i].get_handler = ngx_http_variable_unknown_header_in; |
| 577 | 1258 v[i].data = (uintptr_t) &v[i].name; |
| 1259 | |
| 1260 continue; | |
| 1261 } | |
| 1262 | |
| 1263 if (ngx_strncmp(v[i].name.data, "sent_http_", 10) == 0) { | |
| 637 | 1264 v[i].get_handler = ngx_http_variable_unknown_header_out; |
| 509 | 1265 v[i].data = (uintptr_t) &v[i].name; |
| 1266 | |
| 1267 continue; | |
| 1268 } | |
| 1269 | |
| 1270 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 1271 "unknown \"%V\" variable", &v[i].name); | |
| 1272 | |
| 1273 return NGX_ERROR; | |
| 1274 | |
| 1275 next: | |
| 1276 continue; | |
| 1277 } | |
| 1278 | |
| 1279 | |
| 611 | 1280 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) { |
| 1281 av = key[n].value; | |
| 1282 | |
| 1283 if (av->flags & NGX_HTTP_VAR_NOHASH) { | |
| 1284 key[n].key.data = NULL; | |
| 583 | 1285 } |
| 1286 } | |
| 1287 | |
| 1288 | |
| 611 | 1289 hash.hash = &cmcf->variables_hash; |
| 1290 hash.key = ngx_hash_key; | |
| 1291 hash.max_size = cmcf->variables_hash_max_size; | |
| 1292 hash.bucket_size = cmcf->variables_hash_bucket_size; | |
| 1293 hash.name = "variables_hash"; | |
| 1294 hash.pool = cf->pool; | |
| 1295 hash.temp_pool = NULL; | |
| 509 | 1296 |
| 611 | 1297 if (ngx_hash_init(&hash, cmcf->variables_keys->keys.elts, |
| 1298 cmcf->variables_keys->keys.nelts) | |
| 581 | 1299 != NGX_OK) |
| 509 | 1300 { |
| 1301 return NGX_ERROR; | |
| 1302 } | |
| 1303 | |
| 611 | 1304 cmcf->variables_keys = NULL; |
| 509 | 1305 |
| 1306 return NGX_OK; | |
| 1307 } |