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comparison src/http/modules/proxy/ngx_http_proxy_cache.c @ 177:4db54fdbcbe7

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nginx-0.0.1-2003-11-10-20:17:31 import
author Igor Sysoev <igor@sysoev.ru>
date Mon, 10 Nov 2003 17:17:31 +0000
parents c0552e5ab567
children a8ff48d26cca
comparison
equal deleted inserted replaced
176:c0552e5ab567 177:4db54fdbcbe7
300 ngx_http_proxy_finalize_request(p, 300 ngx_http_proxy_finalize_request(p,
301 ngx_http_proxy_send_cached_response(p)); 301 ngx_http_proxy_send_cached_response(p));
302 return; 302 return;
303 } 303 }
304 304
305 p->state->status = NGX_HTTP_SERVICE_UNAVAILABLE;
305 ngx_http_proxy_finalize_request(p, NGX_HTTP_SERVICE_UNAVAILABLE); 306 ngx_http_proxy_finalize_request(p, NGX_HTTP_SERVICE_UNAVAILABLE);
306 } 307 }
307 308
308 309
309 static void ngx_http_proxy_cache_look_complete_request(ngx_http_proxy_ctx_t *p) 310 static void ngx_http_proxy_cache_look_complete_request(ngx_http_proxy_ctx_t *p)
466 } 467 }
467 468
468 469
469 int ngx_http_proxy_is_cachable(ngx_http_proxy_ctx_t *p) 470 int ngx_http_proxy_is_cachable(ngx_http_proxy_ctx_t *p)
470 { 471 {
471 time_t date, last_modified, expires; 472 time_t date, last_modified, expires, t;
472 ngx_http_proxy_headers_in_t *h; 473 ngx_http_proxy_headers_in_t *h;
473 474
474 switch (p->upstream->status) { 475 switch (p->upstream->status) {
475 case NGX_HTTP_OK: 476 case NGX_HTTP_OK:
476 case NGX_HTTP_MOVED_PERMANENTLY: 477 case NGX_HTTP_MOVED_PERMANENTLY:
507 if (h->x_accel_expires) { 508 if (h->x_accel_expires) {
508 expires = ngx_atoi(h->x_accel_expires->value.data, 509 expires = ngx_atoi(h->x_accel_expires->value.data,
509 h->x_accel_expires->value.len); 510 h->x_accel_expires->value.len);
510 if (expires != NGX_ERROR) { 511 if (expires != NGX_ERROR) {
511 p->state->reason = NGX_HTTP_PROXY_CACHE_XAE; 512 p->state->reason = NGX_HTTP_PROXY_CACHE_XAE;
513 p->state->expires = expires;
512 p->cache->ctx.expires = date + expires; 514 p->cache->ctx.expires = date + expires;
513 return (expires > 0); 515 return (expires > 0);
514 } 516 }
515 } 517 }
516 518
521 if (h->expires) { 523 if (h->expires) {
522 expires = ngx_http_parse_time(h->expires->value.data, 524 expires = ngx_http_parse_time(h->expires->value.data,
523 h->expires->value.len); 525 h->expires->value.len);
524 if (expires != NGX_ERROR) { 526 if (expires != NGX_ERROR) {
525 p->state->reason = NGX_HTTP_PROXY_CACHE_EXP; 527 p->state->reason = NGX_HTTP_PROXY_CACHE_EXP;
528 p->state->expires = expires - date;
526 p->cache->ctx.expires = expires; 529 p->cache->ctx.expires = expires;
527 return (date < expires); 530 return (date < expires);
528 } 531 }
529 } 532 }
530 } 533 }
531 534
532 if (p->upstream->status == NGX_HTTP_MOVED_PERMANENTLY) { 535 if (p->upstream->status == NGX_HTTP_MOVED_PERMANENTLY) {
533 p->state->reason = NGX_HTTP_PROXY_CACHE_MVD; 536 p->state->reason = NGX_HTTP_PROXY_CACHE_MVD;
537 p->state->expires = /* STUB: 1 hour */ 60 * 60;
534 p->cache->ctx.expires = /* STUB: 1 hour */ 60 * 60; 538 p->cache->ctx.expires = /* STUB: 1 hour */ 60 * 60;
535 return 1; 539 return 1;
536 } 540 }
537 541
538 if (p->upstream->status == NGX_HTTP_MOVED_TEMPORARILY) { 542 if (p->upstream->status == NGX_HTTP_MOVED_TEMPORARILY) {
542 if (last_modified != NGX_ERROR && p->lcf->lm_factor > 0) { 546 if (last_modified != NGX_ERROR && p->lcf->lm_factor > 0) {
543 547
544 /* FIXME: time_t == int_64_t, we can use fpu */ 548 /* FIXME: time_t == int_64_t, we can use fpu */
545 549
546 p->state->reason = NGX_HTTP_PROXY_CACHE_LMF; 550 p->state->reason = NGX_HTTP_PROXY_CACHE_LMF;
547 p->cache->ctx.expires = (time_t) (ngx_time() 551 t = (time_t)
548 + (((int64_t) (date - last_modified)) * p->lcf->lm_factor) / 100); 552 ((((int64_t) (date - last_modified)) * p->lcf->lm_factor) / 100);
553 p->state->expires = t;
554 p->cache->ctx.expires = ngx_time() + t;
549 return 1; 555 return 1;
550 } 556 }
551 557
552 if (p->lcf->default_expires > 0) { 558 if (p->lcf->default_expires > 0) {
553 p->state->reason = NGX_HTTP_PROXY_CACHE_PDE; 559 p->state->reason = NGX_HTTP_PROXY_CACHE_PDE;
554 p->cache->ctx.expires = p->lcf->default_expires; 560 p->state->expires = p->lcf->default_expires;
561 p->cache->ctx.expires = ngx_time() + p->lcf->default_expires;
555 return 1; 562 return 1;
556 } 563 }
557 564
558 return 0; 565 return 0;
559 } 566 }