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comparison src/http/modules/ngx_http_map_module.c @ 140:55a211e5eeb7 NGINX_0_3_17

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nginx 0.3.17 *) Change: now on Linux configure checks the presence of epoll and sendfile64() in kernel. *) Feature: the "map" directive supports domain names in the ".domain.tld" form. *) Bugfix: the timeouts were not used in SSL handshake; bug appeared in 0.2.4. *) Bugfix: in the HTTPS protocol in the "proxy_pass" directive. *) Bugfix: when the HTTPS protocol was used in the "proxy_pass" directive the port 80 was used by default.
author Igor Sysoev <http://sysoev.ru>
date Sun, 18 Dec 2005 00:00:00 +0300
parents 8e6d4d96ec4c
children 84910468f6de
comparison
equal deleted inserted replaced
139:9cee8bc94578 140:55a211e5eeb7
6 6
7 #include <ngx_config.h> 7 #include <ngx_config.h>
8 #include <ngx_core.h> 8 #include <ngx_core.h>
9 #include <ngx_http.h> 9 #include <ngx_http.h>
10 10
11
12 #define NGX_HTTP_MAP_HASH 10007
13 11
14 typedef struct { 12 typedef struct {
15 ngx_uint_t hash_max_size; 13 ngx_uint_t hash_max_size;
16 ngx_uint_t hash_bucket_size; 14 ngx_uint_t hash_bucket_size;
17 } ngx_http_map_conf_t; 15 } ngx_http_map_conf_t;
18 16
19 17
20 typedef struct { 18 typedef struct {
21 ngx_pool_t *pool; 19 ngx_http_hash_conf_t hash;
22
23 ngx_array_t keys;
24 ngx_array_t *keys_hash;
25
26 ngx_array_t dns_wildcards;
27 ngx_array_t *dns_hash;
28 20
29 ngx_array_t *values_hash; 21 ngx_array_t *values_hash;
30 22
31 ngx_http_variable_value_t *default_value; 23 ngx_http_variable_value_t *default_value;
32 ngx_uint_t hostnames; /* unsigned hostnames:1 */ 24 ngx_uint_t hostnames; /* unsigned hostnames:1 */
251 pool = ngx_create_pool(16384, cf->log); 243 pool = ngx_create_pool(16384, cf->log);
252 if (pool == NULL) { 244 if (pool == NULL) {
253 return NGX_CONF_ERROR; 245 return NGX_CONF_ERROR;
254 } 246 }
255 247
256 if (ngx_array_init(&ctx.keys, pool, 16384, sizeof(ngx_hash_key_t)) 248 if (ngx_array_init(&ctx.hash.keys, pool, 16384, sizeof(ngx_hash_key_t))
257 != NGX_OK) 249 != NGX_OK)
258 { 250 {
259 ngx_destroy_pool(pool); 251 ngx_destroy_pool(pool);
260 return NGX_CONF_ERROR; 252 return NGX_CONF_ERROR;
261 } 253 }
262 254
263 if (ngx_array_init(&ctx.dns_wildcards, pool, 16384, sizeof(ngx_hash_key_t)) 255 if (ngx_array_init(&ctx.hash.dns_wildcards, pool, 16384,
256 sizeof(ngx_hash_key_t))
264 != NGX_OK) 257 != NGX_OK)
265 { 258 {
266 ngx_destroy_pool(pool); 259 ngx_destroy_pool(pool);
267 return NGX_CONF_ERROR; 260 return NGX_CONF_ERROR;
268 } 261 }
269 262
270 ctx.keys_hash = ngx_pcalloc(pool, sizeof(ngx_array_t) * NGX_HTTP_MAP_HASH); 263 ctx.hash.keys_hash = ngx_pcalloc(pool,
271 if (ctx.keys_hash == NULL) { 264 sizeof(ngx_array_t) * NGX_HTTP_CONFIG_HASH);
265 if (ctx.hash.keys_hash == NULL) {
272 ngx_destroy_pool(pool); 266 ngx_destroy_pool(pool);
273 return NGX_CONF_ERROR; 267 return NGX_CONF_ERROR;
274 } 268 }
275 269
276 ctx.dns_hash = ngx_pcalloc(pool, sizeof(ngx_array_t) * NGX_HTTP_MAP_HASH); 270 ctx.hash.dns_hash = ngx_pcalloc(pool,
277 if (ctx.dns_hash == NULL) { 271 sizeof(ngx_array_t) * NGX_HTTP_CONFIG_HASH);
272 if (ctx.hash.dns_hash == NULL) {
278 ngx_destroy_pool(pool); 273 ngx_destroy_pool(pool);
279 return NGX_CONF_ERROR; 274 return NGX_CONF_ERROR;
280 } 275 }
281 276
282 ctx.values_hash = ngx_pcalloc(pool, 277 ctx.values_hash = ngx_pcalloc(pool,
283 sizeof(ngx_array_t) * NGX_HTTP_MAP_HASH); 278 sizeof(ngx_array_t) * NGX_HTTP_CONFIG_HASH);
284 if (ctx.values_hash == NULL) { 279 if (ctx.values_hash == NULL) {
285 ngx_destroy_pool(pool); 280 ngx_destroy_pool(pool);
286 return NGX_CONF_ERROR; 281 return NGX_CONF_ERROR;
287 } 282 }
288 283
289 ctx.pool = cf->pool; 284 ctx.hash.pool = cf->pool;
285 ctx.hash.temp_pool = pool;
290 ctx.default_value = NULL; 286 ctx.default_value = NULL;
291 ctx.hostnames = 0; 287 ctx.hostnames = 0;
292 288
293 save = *cf; 289 save = *cf;
294 cf->pool = pool; 290 cf->pool = pool;
310 hash.max_size = mcf->hash_max_size; 306 hash.max_size = mcf->hash_max_size;
311 hash.bucket_size = mcf->hash_bucket_size; 307 hash.bucket_size = mcf->hash_bucket_size;
312 hash.name = "map_hash"; 308 hash.name = "map_hash";
313 hash.pool = cf->pool; 309 hash.pool = cf->pool;
314 310
315 if (ctx.keys.nelts) { 311 if (ctx.hash.keys.nelts) {
316 hash.hash = &map->hash; 312 hash.hash = &map->hash;
317 hash.temp_pool = NULL; 313 hash.temp_pool = NULL;
318 314
319 if (ngx_hash_init(&hash, ctx.keys.elts, ctx.keys.nelts) != NGX_OK) { 315 if (ngx_hash_init(&hash, ctx.hash.keys.elts, ctx.hash.keys.nelts)
316 != NGX_OK)
317 {
320 return NGX_CONF_ERROR; 318 return NGX_CONF_ERROR;
321 } 319 }
322 } 320 }
323 321
324 map->default_value = ctx.default_value ? ctx.default_value: 322 map->default_value = ctx.default_value ? ctx.default_value:
325 &ngx_http_variable_null_value; 323 &ngx_http_variable_null_value;
326 324
327 if (ctx.dns_wildcards.nelts) { 325 if (ctx.hash.dns_wildcards.nelts) {
328 326
329 ngx_qsort(ctx.dns_wildcards.elts, (size_t) ctx.dns_wildcards.nelts, 327 ngx_qsort(ctx.hash.dns_wildcards.elts,
328 (size_t) ctx.hash.dns_wildcards.nelts,
330 sizeof(ngx_hash_key_t), ngx_http_map_cmp_dns_wildcards); 329 sizeof(ngx_hash_key_t), ngx_http_map_cmp_dns_wildcards);
331 330
332 hash.hash = NULL; 331 hash.hash = NULL;
333 hash.temp_pool = pool; 332 hash.temp_pool = pool;
334 333
335 if (ngx_hash_wildcard_init(&hash, ctx.dns_wildcards.elts, 334 if (ngx_hash_wildcard_init(&hash, ctx.hash.dns_wildcards.elts,
336 ctx.dns_wildcards.nelts) 335 ctx.hash.dns_wildcards.nelts)
337 != NGX_OK) 336 != NGX_OK)
338 { 337 {
339 return NGX_CONF_ERROR; 338 return NGX_CONF_ERROR;
340 } 339 }
341 340
361 360
362 361
363 static char * 362 static char *
364 ngx_http_map(ngx_conf_t *cf, ngx_command_t *dummy, void *conf) 363 ngx_http_map(ngx_conf_t *cf, ngx_command_t *dummy, void *conf)
365 { 364 {
366 size_t len; 365 u_char ch;
367 ngx_str_t *value, file, *name; 366 ngx_int_t rc;
368 ngx_uint_t i, n, key; 367 ngx_str_t *value, file;
369 ngx_hash_key_t *m; 368 ngx_uint_t i, key, flags;
370 ngx_http_map_conf_ctx_t *ctx; 369 ngx_http_map_conf_ctx_t *ctx;
371 ngx_http_variable_value_t *var, *old, **vp; 370 ngx_http_variable_value_t *var, **vp;
372 u_char buf[2048];
373 371
374 ctx = cf->ctx; 372 ctx = cf->ctx;
375 373
376 value = cf->args->elts; 374 value = cf->args->elts;
377 375
408 406
409 for (i = 0; i < value[1].len; i++) { 407 for (i = 0; i < value[1].len; i++) {
410 key = ngx_hash(key, value[1].data[i]); 408 key = ngx_hash(key, value[1].data[i]);
411 } 409 }
412 410
413 key %= NGX_HTTP_MAP_HASH; 411 key %= NGX_HTTP_CONFIG_HASH;
414 412
415 vp = ctx->values_hash[key].elts; 413 vp = ctx->values_hash[key].elts;
416 414
417 if (vp) { 415 if (vp) {
418 for (i = 0; i < ctx->values_hash[key].nelts; i++) { 416 for (i = 0; i < ctx->values_hash[key].nelts; i++) {
433 { 431 {
434 return NGX_CONF_ERROR; 432 return NGX_CONF_ERROR;
435 } 433 }
436 } 434 }
437 435
438 var = ngx_palloc(ctx->pool, sizeof(ngx_http_variable_value_t)); 436 var = ngx_palloc(ctx->hash.pool, sizeof(ngx_http_variable_value_t));
439 if (var == NULL) { 437 if (var == NULL) {
440 return NGX_CONF_ERROR; 438 return NGX_CONF_ERROR;
441 } 439 }
442 440
443 var->len = value[1].len; 441 var->len = value[1].len;
444 var->data = ngx_pstrdup(ctx->pool, &value[1]); 442 var->data = ngx_pstrdup(ctx->hash.pool, &value[1]);
445 if (var->data == NULL) { 443 if (var->data == NULL) {
446 return NGX_CONF_ERROR; 444 return NGX_CONF_ERROR;
447 } 445 }
448 446
449 var->valid = 1; 447 var->valid = 1;
457 455
458 *vp = var; 456 *vp = var;
459 457
460 found: 458 found:
461 459
462 if (value[0].data[0] != '*' || ctx->hostnames == 0) { 460 ch = value[0].data[0];
463 461
464 if (ngx_strcmp(value[0].data, "default") != 0) { 462 if ((ch != '*' && ch != '.') || ctx->hostnames == 0) {
465 463
466 if (value[0].len && value[0].data[0] == '!') { 464 if (ngx_strcmp(value[0].data, "default") == 0) {
467 value[0].len--; 465
468 value[0].data++; 466 if (ctx->default_value) {
469 } 467 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
470 468 "duplicate default map parameter");
471 key = 0;
472
473 for (i = 0; i < value[0].len; i++) {
474 value[0].data[i] = ngx_tolower(value[0].data[i]);
475 key = ngx_hash(key, value[0].data[i]);
476 }
477
478 key %= NGX_HTTP_MAP_HASH;
479
480 name = ctx->keys_hash[key].elts;
481
482 if (name) {
483 for (i = 0; i < ctx->keys_hash[key].nelts; i++) {
484 if (value[0].len != name[i].len) {
485 continue;
486 }
487
488 if (ngx_strncmp(value[0].data, name[i].data, value[0].len)
489 == 0)
490 {
491 m = ctx->keys.elts;
492 for (i = 0; i < ctx->keys.nelts; i++) {
493 if (ngx_strcmp(value[0].data, m[i].key.data) == 0) {
494 old = m[i].value;
495 m[i].value = var;
496
497 goto duplicate;
498 }
499 }
500 }
501 }
502
503 } else {
504 if (ngx_array_init(&ctx->keys_hash[key], cf->pool, 4,
505 sizeof(ngx_str_t))
506 != NGX_OK)
507 {
508 return NGX_CONF_ERROR;
509 }
510 }
511
512 name = ngx_array_push(&ctx->keys_hash[key]);
513 if (name == NULL) {
514 return NGX_CONF_ERROR; 469 return NGX_CONF_ERROR;
515 } 470 }
516 471
517 *name = value[0];
518
519 m = ngx_array_push(&ctx->keys);
520 if (m == NULL) {
521 return NGX_CONF_ERROR;
522 }
523
524 m->key = value[0];
525 m->key_hash = ngx_hash_key(value[0].data, value[0].len);
526 m->value = var;
527
528 } else {
529 if (ctx->default_value) {
530 old = ctx->default_value;
531 ctx->default_value = var;
532
533 goto duplicate;
534 }
535
536 ctx->default_value = var; 472 ctx->default_value = var;
537 } 473
474 return NGX_CONF_OK;
475 }
476
477 if (value[0].len && ch == '!') {
478 value[0].len--;
479 value[0].data++;
480 }
481
482 flags = 0;
538 483
539 } else { 484 } else {
540 485
541 if (value[0].len < 3 || value[0].data[1] != '.') { 486 if ((ch == '*' && (value[0].len < 3 || value[0].data[1] != '.'))
487 || (ch == '.' && value[0].len < 2))
488 {
542 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, 489 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
543 "invalid DNS wildcard \"%V\"", &value[0]); 490 "invalid DNS wildcard \"%V\"", &value[0]);
491
544 return NGX_CONF_ERROR; 492 return NGX_CONF_ERROR;
545 } 493 }
546 494
547 key = 0; 495 flags = NGX_HTTP_WILDCARD_HASH;
548 496 }
549 for (i = 2; i < value[0].len; i++) { 497
550 value[0].data[i] = ngx_tolower(value[0].data[i]); 498 rc = ngx_http_config_add_hash(&ctx->hash, &value[0], var, flags);
551 key = ngx_hash(key, value[0].data[i]); 499
552 } 500 if (rc == NGX_OK) {
553 501 return NGX_CONF_OK;
554 key %= NGX_HTTP_MAP_HASH; 502 }
555 503
556 /* convert "*.example.com" into "com.example.\0" */ 504 if (rc == NGX_BUSY) {
557 505 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
558 len = 0; 506 "conflicting parameter \"%V\"", &value[0]);
559 n = 0; 507 }
560 508
561 for (i = value[0].len - 1; i; i--) { 509 return NGX_CONF_ERROR;
562 if (value[0].data[i] == '.') {
563 ngx_memcpy(&buf[n], &value[0].data[i + 1], len);
564 n += len;
565 buf[n++] = '.';
566 len = 0;
567 continue;
568 }
569
570 len++;
571 }
572
573 buf[n] = '\0';
574
575 name = ctx->dns_hash[key].elts;
576
577 if (name) {
578 for (i = 0; i < ctx->dns_hash[key].nelts; i++) {
579 if (value[0].len != name[i].len) {
580 continue;
581 }
582
583 if (ngx_strncmp(value[0].data, name[i].data, value[0].len)
584 == 0)
585 {
586 m = ctx->dns_wildcards.elts;
587 for (i = 0; i < ctx->dns_wildcards.nelts; i++) {
588 if (ngx_strcmp(buf, m[i].key.data) == 0) {
589 old = m[i].value;
590 m[i].value = var;
591
592 goto duplicate;
593 }
594 }
595 }
596 }
597
598 } else {
599 if (ngx_array_init(&ctx->dns_hash[key], cf->pool, 4,
600 sizeof(ngx_str_t))
601 != NGX_OK)
602 {
603 return NGX_CONF_ERROR;
604 }
605 }
606
607 name = ngx_array_push(&ctx->dns_hash[key]);
608 if (name == NULL) {
609 return NGX_CONF_ERROR;
610 }
611
612 *name = value[0];
613
614 ngx_memcpy(value[0].data, buf, value[0].len);
615 value[0].len--;
616
617 m = ngx_array_push(&ctx->dns_wildcards);
618 if (m == NULL) {
619 return NGX_CONF_ERROR;
620 }
621
622 m->key = value[0];
623 m->key_hash = 0;
624 m->value = var;
625 }
626
627 return NGX_CONF_OK;
628
629 duplicate:
630
631 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
632 "duplicate parameter \"%V\", value: \"%V\", "
633 "old value: \"%V\"",
634 &value[0], var, old);
635
636 return NGX_CONF_OK;
637 } 510 }