Mercurial > hg > nginx
annotate src/http/ngx_http_upstream.c @ 1153:c843f3df3b85
separate ngx_http_upstream_test_connect() and
use it in ngx_http_upstream_process_header() path too
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Sat, 31 Mar 2007 15:37:09 +0000 |
parents | c6c42497106c |
children | f59d15404269 |
rev | line source |
---|---|
479 | 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> | |
10 | |
11 | |
509 | 12 static void ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r); |
13 static void ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r); | |
14 static void ngx_http_upstream_check_broken_connection(ngx_http_request_t *r, | |
15 ngx_event_t *ev); | |
479 | 16 static void ngx_http_upstream_connect(ngx_http_request_t *r, |
487 | 17 ngx_http_upstream_t *u); |
509 | 18 static ngx_int_t ngx_http_upstream_reinit(ngx_http_request_t *r, |
487 | 19 ngx_http_upstream_t *u); |
479 | 20 static void ngx_http_upstream_send_request(ngx_http_request_t *r, |
487 | 21 ngx_http_upstream_t *u); |
479 | 22 static void ngx_http_upstream_send_request_handler(ngx_event_t *wev); |
23 static void ngx_http_upstream_process_header(ngx_event_t *rev); | |
1153
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
24 static ngx_int_t ngx_http_upstream_test_connect(ngx_connection_t *c); |
777
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
25 static void ngx_http_upstream_process_body_in_memory(ngx_event_t *rev); |
479 | 26 static void ngx_http_upstream_send_response(ngx_http_request_t *r, |
487 | 27 ngx_http_upstream_t *u); |
581 | 28 static void |
29 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r); | |
30 static void ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev); | |
31 static ngx_int_t ngx_http_upstream_non_buffered_filter_init(void *data); | |
32 static ngx_int_t ngx_http_upstream_non_buffered_filter(void *data, | |
33 ssize_t bytes); | |
509 | 34 static void ngx_http_upstream_process_downstream(ngx_http_request_t *r); |
479 | 35 static void ngx_http_upstream_process_body(ngx_event_t *ev); |
36 static void ngx_http_upstream_dummy_handler(ngx_event_t *wev); | |
37 static void ngx_http_upstream_next(ngx_http_request_t *r, | |
487 | 38 ngx_http_upstream_t *u, ngx_uint_t ft_type); |
569 | 39 static void ngx_http_upstream_cleanup(void *data); |
479 | 40 static void ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
487 | 41 ngx_http_upstream_t *u, ngx_int_t rc); |
479 | 42 |
509 | 43 static ngx_int_t ngx_http_upstream_process_header_line(ngx_http_request_t *r, |
44 ngx_table_elt_t *h, ngx_uint_t offset); | |
45 static ngx_int_t | |
46 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
47 ngx_table_elt_t *h, ngx_uint_t offset); | |
48 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, | |
49 ngx_table_elt_t *h, ngx_uint_t offset); | |
527 | 50 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, |
51 ngx_table_elt_t *h, ngx_uint_t offset); | |
649 | 52 static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r, |
509 | 53 ngx_table_elt_t *h, ngx_uint_t offset); |
657 | 54 static ngx_int_t ngx_http_upstream_process_charset(ngx_http_request_t *r, |
55 ngx_table_elt_t *h, ngx_uint_t offset); | |
649 | 56 static ngx_int_t ngx_http_upstream_copy_header_line(ngx_http_request_t *r, |
509 | 57 ngx_table_elt_t *h, ngx_uint_t offset); |
58 static ngx_int_t | |
59 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r, | |
60 ngx_table_elt_t *h, ngx_uint_t offset); | |
61 static ngx_int_t ngx_http_upstream_copy_content_type(ngx_http_request_t *r, | |
62 ngx_table_elt_t *h, ngx_uint_t offset); | |
63 static ngx_int_t ngx_http_upstream_copy_content_length(ngx_http_request_t *r, | |
64 ngx_table_elt_t *h, ngx_uint_t offset); | |
65 static ngx_int_t ngx_http_upstream_rewrite_location(ngx_http_request_t *r, | |
66 ngx_table_elt_t *h, ngx_uint_t offset); | |
67 static ngx_int_t ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, | |
68 ngx_table_elt_t *h, ngx_uint_t offset); | |
69 #if (NGX_HTTP_GZIP) | |
70 static ngx_int_t ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
71 ngx_table_elt_t *h, ngx_uint_t offset); | |
72 #endif | |
73 | |
573 | 74 static ngx_int_t ngx_http_upstream_add_variables(ngx_conf_t *cf); |
75 static ngx_int_t ngx_http_upstream_status_variable(ngx_http_request_t *r, | |
76 ngx_http_variable_value_t *v, uintptr_t data); | |
77 static ngx_int_t ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
78 ngx_http_variable_value_t *v, uintptr_t data); | |
79 | |
651 | 80 static char *ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy); |
81 static char *ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, | |
82 void *conf); | |
83 | |
509 | 84 static void *ngx_http_upstream_create_main_conf(ngx_conf_t *cf); |
651 | 85 static char *ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf); |
509 | 86 |
577 | 87 #if (NGX_HTTP_SSL) |
591 | 88 static void ngx_http_upstream_ssl_init_connection(ngx_http_request_t *, |
89 ngx_http_upstream_t *u, ngx_connection_t *c); | |
577 | 90 static void ngx_http_upstream_ssl_handshake(ngx_connection_t *c); |
91 #endif | |
92 | |
509 | 93 |
94 ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = { | |
95 | |
96 { ngx_string("Status"), | |
97 ngx_http_upstream_process_header_line, | |
98 offsetof(ngx_http_upstream_headers_in_t, status), | |
649 | 99 ngx_http_upstream_copy_header_line, 0, 0 }, |
509 | 100 |
101 { ngx_string("Content-Type"), | |
102 ngx_http_upstream_process_header_line, | |
103 offsetof(ngx_http_upstream_headers_in_t, content_type), | |
673 | 104 ngx_http_upstream_copy_content_type, 0, 1 }, |
509 | 105 |
106 { ngx_string("Content-Length"), | |
107 ngx_http_upstream_process_header_line, | |
108 offsetof(ngx_http_upstream_headers_in_t, content_length), | |
515 | 109 ngx_http_upstream_copy_content_length, 0, 0 }, |
509 | 110 |
111 { ngx_string("Date"), | |
112 ngx_http_upstream_process_header_line, | |
113 offsetof(ngx_http_upstream_headers_in_t, date), | |
649 | 114 ngx_http_upstream_copy_header_line, |
115 offsetof(ngx_http_headers_out_t, date), 0 }, | |
509 | 116 |
117 { ngx_string("Server"), | |
118 ngx_http_upstream_process_header_line, | |
119 offsetof(ngx_http_upstream_headers_in_t, server), | |
649 | 120 ngx_http_upstream_copy_header_line, |
121 offsetof(ngx_http_headers_out_t, server), 0 }, | |
509 | 122 |
529 | 123 { ngx_string("WWW-Authenticate"), |
124 ngx_http_upstream_process_header_line, | |
125 offsetof(ngx_http_upstream_headers_in_t, www_authenticate), | |
126 ngx_http_upstream_copy_header_line, 0, 0 }, | |
127 | |
509 | 128 { ngx_string("Location"), |
129 ngx_http_upstream_ignore_header_line, 0, | |
515 | 130 ngx_http_upstream_rewrite_location, 0, 0 }, |
509 | 131 |
132 { ngx_string("Refresh"), | |
133 ngx_http_upstream_ignore_header_line, 0, | |
515 | 134 ngx_http_upstream_rewrite_refresh, 0, 0 }, |
135 | |
136 { ngx_string("Set-Cookie"), | |
137 ngx_http_upstream_ignore_header_line, 0, | |
531 | 138 ngx_http_upstream_copy_header_line, 0, 1 }, |
139 | |
140 { ngx_string("Content-Disposition"), | |
141 ngx_http_upstream_ignore_header_line, 0, | |
142 ngx_http_upstream_copy_header_line, 0, 1 }, | |
509 | 143 |
144 { ngx_string("Cache-Control"), | |
145 ngx_http_upstream_process_multi_header_lines, | |
146 offsetof(ngx_http_upstream_headers_in_t, cache_control), | |
147 ngx_http_upstream_copy_multi_header_lines, | |
515 | 148 offsetof(ngx_http_headers_out_t, cache_control), 1 }, |
509 | 149 |
573 | 150 { ngx_string("Expires"), |
151 ngx_http_upstream_process_header_line, | |
152 offsetof(ngx_http_upstream_headers_in_t, expires), | |
153 ngx_http_upstream_copy_header_line, | |
154 offsetof(ngx_http_headers_out_t, expires), 1 }, | |
155 | |
577 | 156 { ngx_string("Accept-Ranges"), |
157 ngx_http_upstream_process_header_line, | |
158 offsetof(ngx_http_upstream_headers_in_t, accept_ranges), | |
159 ngx_http_upstream_copy_header_line, | |
160 offsetof(ngx_http_headers_out_t, accept_ranges), 1 }, | |
161 | |
509 | 162 { ngx_string("Connection"), |
163 ngx_http_upstream_ignore_header_line, 0, | |
515 | 164 ngx_http_upstream_ignore_header_line, 0, 0 }, |
509 | 165 |
641 | 166 { ngx_string("Keep-Alive"), |
167 ngx_http_upstream_ignore_header_line, 0, | |
168 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
169 | |
509 | 170 { ngx_string("X-Powered-By"), |
171 ngx_http_upstream_ignore_header_line, 0, | |
649 | 172 ngx_http_upstream_copy_header_line, 0, 0 }, |
509 | 173 |
174 { ngx_string("X-Accel-Expires"), | |
175 ngx_http_upstream_process_header_line, | |
176 offsetof(ngx_http_upstream_headers_in_t, x_accel_expires), | |
649 | 177 ngx_http_upstream_copy_header_line, 0, 0 }, |
515 | 178 |
179 { ngx_string("X-Accel-Redirect"), | |
180 ngx_http_upstream_process_header_line, | |
181 offsetof(ngx_http_upstream_headers_in_t, x_accel_redirect), | |
182 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
509 | 183 |
527 | 184 { ngx_string("X-Accel-Limit-Rate"), |
185 ngx_http_upstream_process_limit_rate, 0, | |
186 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
187 | |
649 | 188 { ngx_string("X-Accel-Buffering"), |
189 ngx_http_upstream_process_buffering, 0, | |
190 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
191 | |
657 | 192 { ngx_string("X-Accel-Charset"), |
193 ngx_http_upstream_process_charset, 0, | |
194 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
195 | |
509 | 196 #if (NGX_HTTP_GZIP) |
197 { ngx_string("Content-Encoding"), | |
198 ngx_http_upstream_process_header_line, | |
199 offsetof(ngx_http_upstream_headers_in_t, content_encoding), | |
515 | 200 ngx_http_upstream_copy_content_encoding, 0, 0 }, |
509 | 201 #endif |
202 | |
515 | 203 { ngx_null_string, NULL, 0, NULL, 0, 0 } |
509 | 204 }; |
479 | 205 |
206 | |
651 | 207 static ngx_command_t ngx_http_upstream_commands[] = { |
208 | |
209 { ngx_string("upstream"), | |
210 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1, | |
211 ngx_http_upstream, | |
212 0, | |
213 0, | |
214 NULL }, | |
215 | |
216 { ngx_string("server"), | |
884 | 217 NGX_HTTP_UPS_CONF|NGX_CONF_1MORE, |
651 | 218 ngx_http_upstream_server, |
219 NGX_HTTP_SRV_CONF_OFFSET, | |
220 0, | |
221 NULL }, | |
222 | |
223 ngx_null_command | |
224 }; | |
225 | |
226 | |
227 static ngx_http_module_t ngx_http_upstream_module_ctx = { | |
573 | 228 ngx_http_upstream_add_variables, /* preconfiguration */ |
509 | 229 NULL, /* postconfiguration */ |
230 | |
231 ngx_http_upstream_create_main_conf, /* create main configuration */ | |
651 | 232 ngx_http_upstream_init_main_conf, /* init main configuration */ |
479 | 233 |
234 NULL, /* create server configuration */ | |
235 NULL, /* merge server configuration */ | |
236 | |
237 NULL, /* create location configuration */ | |
238 NULL /* merge location configuration */ | |
239 }; | |
577 | 240 |
479 | 241 |
242 ngx_module_t ngx_http_upstream_module = { | |
509 | 243 NGX_MODULE_V1, |
479 | 244 &ngx_http_upstream_module_ctx, /* module context */ |
651 | 245 ngx_http_upstream_commands, /* module directives */ |
479 | 246 NGX_HTTP_MODULE, /* module type */ |
541 | 247 NULL, /* init master */ |
479 | 248 NULL, /* init module */ |
541 | 249 NULL, /* init process */ |
250 NULL, /* init thread */ | |
251 NULL, /* exit thread */ | |
252 NULL, /* exit process */ | |
253 NULL, /* exit master */ | |
254 NGX_MODULE_V1_PADDING | |
479 | 255 }; |
256 | |
257 | |
573 | 258 static ngx_http_variable_t ngx_http_upstream_vars[] = { |
259 | |
637 | 260 { ngx_string("upstream_status"), NULL, |
583 | 261 ngx_http_upstream_status_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
573 | 262 |
637 | 263 { ngx_string("upstream_response_time"), NULL, |
583 | 264 ngx_http_upstream_response_time_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
573 | 265 |
637 | 266 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
573 | 267 }; |
268 | |
269 | |
487 | 270 void |
271 ngx_http_upstream_init(ngx_http_request_t *r) | |
479 | 272 { |
509 | 273 ngx_connection_t *c; |
569 | 274 ngx_http_cleanup_t *cln; |
509 | 275 ngx_http_upstream_t *u; |
276 ngx_http_core_loc_conf_t *clcf; | |
479 | 277 |
278 c = r->connection; | |
279 | |
280 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
281 "http init upstream, client timer: %d", c->read->timer_set); | |
282 | |
283 if (c->read->timer_set) { | |
284 ngx_del_timer(c->read); | |
285 } | |
286 | |
629 | 287 u = r->upstream; |
288 | |
289 if (!r->post_action && !u->conf->ignore_client_abort) { | |
615 | 290 r->read_event_handler = ngx_http_upstream_rd_check_broken_connection; |
291 r->write_event_handler = ngx_http_upstream_wr_check_broken_connection; | |
292 } | |
577 | 293 |
479 | 294 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) { |
295 | |
296 if (!c->write->active) { | |
531 | 297 if (ngx_add_event(c->write, NGX_WRITE_EVENT, NGX_CLEAR_EVENT) |
298 == NGX_ERROR) | |
479 | 299 { |
300 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
301 return; | |
302 } | |
303 } | |
304 } | |
305 | |
537 | 306 if (r->request_body) { |
307 u->request_bufs = r->request_body->bufs; | |
308 } | |
509 | 309 |
884 | 310 if (u->conf->upstream->peer.init(r, u->conf->upstream) != NGX_OK) { |
311 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
312 return; | |
313 } | |
314 | |
537 | 315 if (u->create_request(r) != NGX_OK) { |
479 | 316 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); |
317 return; | |
318 } | |
319 | |
509 | 320 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
479 | 321 |
322 u->output.sendfile = r->connection->sendfile; | |
323 u->output.pool = r->pool; | |
324 u->output.bufs.num = 1; | |
509 | 325 u->output.bufs.size = clcf->client_body_buffer_size; |
479 | 326 u->output.output_filter = ngx_chain_writer; |
327 u->output.filter_ctx = &u->writer; | |
328 | |
329 u->writer.pool = r->pool; | |
330 | |
884 | 331 if (ngx_array_init(&u->states, r->pool, 1, |
569 | 332 sizeof(ngx_http_upstream_state_t)) |
333 != NGX_OK) | |
479 | 334 { |
335 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
336 return; | |
337 } | |
338 | |
593 | 339 cln = ngx_http_cleanup_add(r, 0); |
569 | 340 if (cln == NULL) { |
341 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
342 return; | |
343 } | |
344 | |
345 cln->handler = ngx_http_upstream_cleanup; | |
346 cln->data = r; | |
347 u->cleanup = &cln->handler; | |
348 | |
479 | 349 ngx_http_upstream_connect(r, u); |
350 } | |
351 | |
352 | |
487 | 353 static void |
509 | 354 ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r) |
355 { | |
356 ngx_http_upstream_check_broken_connection(r, r->connection->read); | |
357 } | |
358 | |
359 | |
360 static void | |
361 ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r) | |
362 { | |
363 ngx_http_upstream_check_broken_connection(r, r->connection->write); | |
364 } | |
365 | |
366 | |
367 static void | |
368 ngx_http_upstream_check_broken_connection(ngx_http_request_t *r, | |
369 ngx_event_t *ev) | |
479 | 370 { |
371 int n; | |
372 char buf[1]; | |
577 | 373 ngx_err_t err; |
479 | 374 ngx_connection_t *c; |
375 ngx_http_upstream_t *u; | |
376 | |
527 | 377 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, ev->log, 0, |
378 "http upstream check client, write event:%d, \"%V\"", | |
379 ev->write, &r->uri); | |
479 | 380 |
509 | 381 c = r->connection; |
483 | 382 u = r->upstream; |
383 | |
583 | 384 if (c->error) { |
527 | 385 ngx_http_upstream_finalize_request(r, u, |
386 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
387 return; | |
388 } | |
389 | |
483 | 390 if (u->peer.connection == NULL) { |
391 return; | |
392 } | |
393 | |
479 | 394 #if (NGX_HAVE_KQUEUE) |
395 | |
396 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { | |
397 | |
398 if (!ev->pending_eof) { | |
399 return; | |
400 } | |
401 | |
402 ev->eof = 1; | |
583 | 403 c->error = 1; |
479 | 404 |
405 if (ev->kq_errno) { | |
406 ev->error = 1; | |
407 } | |
408 | |
409 if (!u->cachable && u->peer.connection) { | |
410 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno, | |
527 | 411 "kevent() reported that client closed prematurely " |
412 "connection, so upstream connection is closed too"); | |
479 | 413 ngx_http_upstream_finalize_request(r, u, |
414 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
415 return; | |
416 } | |
417 | |
418 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno, | |
419 "kevent() reported that client closed " | |
420 "prematurely connection"); | |
421 | |
422 if (u->peer.connection == NULL) { | |
423 ngx_http_upstream_finalize_request(r, u, | |
424 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
425 return; | |
426 } | |
427 | |
428 return; | |
429 } | |
430 | |
431 #endif | |
432 | |
433 n = recv(c->fd, buf, 1, MSG_PEEK); | |
434 | |
435 err = ngx_socket_errno; | |
436 | |
1109 | 437 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ev->log, err, |
438 "http upstream recv(): %d", n); | |
439 | |
479 | 440 /* |
441 * we do not need to disable the write event because | |
442 * that event has NGX_USE_CLEAR_EVENT type | |
443 */ | |
444 | |
445 if (ev->write && (n >= 0 || err == NGX_EAGAIN)) { | |
446 return; | |
447 } | |
448 | |
449 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) { | |
450 if (ngx_del_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) { | |
451 ngx_http_upstream_finalize_request(r, u, | |
452 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
453 return; | |
454 } | |
455 } | |
456 | |
457 if (n > 0) { | |
458 return; | |
459 } | |
460 | |
461 if (n == -1) { | |
462 if (err == NGX_EAGAIN) { | |
463 return; | |
464 } | |
465 | |
466 ev->error = 1; | |
467 | |
483 | 468 } else { /* n == 0 */ |
479 | 469 err = 0; |
470 } | |
471 | |
529 | 472 ev->eof = 1; |
583 | 473 c->error = 1; |
529 | 474 |
479 | 475 if (!u->cachable && u->peer.connection) { |
476 ngx_log_error(NGX_LOG_INFO, ev->log, err, | |
477 "client closed prematurely connection, " | |
478 "so upstream connection is closed too"); | |
479 ngx_http_upstream_finalize_request(r, u, | |
480 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
481 return; | |
482 } | |
483 | |
484 ngx_log_error(NGX_LOG_INFO, ev->log, err, | |
485 "client closed prematurely connection"); | |
486 | |
487 if (u->peer.connection == NULL) { | |
488 ngx_http_upstream_finalize_request(r, u, | |
489 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
490 return; | |
491 } | |
492 } | |
493 | |
494 | |
487 | 495 static void |
496 ngx_http_upstream_connect(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
479 | 497 { |
591 | 498 ngx_int_t rc; |
665 | 499 ngx_time_t *tp; |
591 | 500 ngx_connection_t *c; |
479 | 501 |
483 | 502 r->connection->log->action = "connecting to upstream"; |
479 | 503 |
504 r->connection->single_connection = 0; | |
505 | |
889
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506 if (u->state && u->state->response_sec) { |
665 | 507 tp = ngx_timeofday(); |
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508 u->state->response_sec = tp->sec - u->state->response_sec; |
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509 u->state->response_msec = tp->msec - u->state->response_msec; |
665 | 510 } |
511 | |
512 u->state = ngx_array_push(&u->states); | |
513 if (u->state == NULL) { | |
514 ngx_http_upstream_finalize_request(r, u, | |
515 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
516 return; | |
517 } | |
518 | |
519 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t)); | |
520 | |
521 tp = ngx_timeofday(); | |
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522 u->state->response_sec = tp->sec; |
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523 u->state->response_msec = tp->msec; |
665 | 524 |
479 | 525 rc = ngx_event_connect_peer(&u->peer); |
526 | |
527 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
528 "http upstream connect: %i", rc); | |
529 | |
530 if (rc == NGX_ERROR) { | |
531 ngx_http_upstream_finalize_request(r, u, | |
532 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
533 return; | |
534 } | |
535 | |
884 | 536 u->state->peer = u->peer.name; |
479 | 537 |
543 | 538 if (rc == NGX_BUSY) { |
539 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no live upstreams"); | |
540 } | |
541 | |
542 if (rc == NGX_BUSY || rc == NGX_DECLINED) { | |
479 | 543 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
544 return; | |
545 } | |
546 | |
577 | 547 /* rc == NGX_OK || rc == NGX_AGAIN */ |
548 | |
479 | 549 c = u->peer.connection; |
550 | |
551 c->data = r; | |
591 | 552 |
509 | 553 c->write->handler = ngx_http_upstream_send_request_handler; |
554 c->read->handler = ngx_http_upstream_process_header; | |
479 | 555 |
556 c->sendfile = r->connection->sendfile; | |
557 | |
558 c->pool = r->pool; | |
559 c->read->log = c->write->log = c->log = r->connection->log; | |
560 | |
561 /* init or reinit the ngx_output_chain() and ngx_chain_writer() contexts */ | |
562 | |
563 u->writer.out = NULL; | |
564 u->writer.last = &u->writer.out; | |
565 u->writer.connection = c; | |
566 u->writer.limit = 0; | |
567 | |
568 if (u->request_sent) { | |
509 | 569 if (ngx_http_upstream_reinit(r, u) != NGX_OK) { |
570 ngx_http_upstream_finalize_request(r, u, | |
571 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
572 return; | |
573 } | |
479 | 574 } |
575 | |
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576 if (r->request_body |
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577 && r->request_body->buf |
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578 && r->request_body->temp_file |
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579 && r == r->main) |
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580 { |
573 | 581 /* |
582 * the r->request_body->buf can be reused for one request only, | |
583 * the subrequests should allocate their own temporay bufs | |
584 */ | |
585 | |
586 u->output.free = ngx_alloc_chain_link(r->pool); | |
587 if (u->output.free == NULL) { | |
588 ngx_http_upstream_finalize_request(r, u, | |
589 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
590 return; | |
479 | 591 } |
573 | 592 |
593 u->output.free->buf = r->request_body->buf; | |
594 u->output.free->next = NULL; | |
595 u->output.allocated = 1; | |
596 | |
597 r->request_body->buf->pos = r->request_body->buf->start; | |
598 r->request_body->buf->last = r->request_body->buf->start; | |
599 r->request_body->buf->tag = u->output.tag; | |
479 | 600 } |
601 | |
602 u->request_sent = 0; | |
603 | |
604 if (rc == NGX_AGAIN) { | |
605 ngx_add_timer(c->write, u->conf->connect_timeout); | |
606 return; | |
607 } | |
608 | |
577 | 609 #if (NGX_HTTP_SSL) |
610 | |
591 | 611 if (u->conf->ssl && c->ssl == NULL) { |
612 ngx_http_upstream_ssl_init_connection(r, u, c); | |
577 | 613 return; |
614 } | |
615 | |
616 #endif | |
617 | |
479 | 618 ngx_http_upstream_send_request(r, u); |
619 } | |
620 | |
621 | |
577 | 622 #if (NGX_HTTP_SSL) |
623 | |
624 static void | |
591 | 625 ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r, |
626 ngx_http_upstream_t *u, ngx_connection_t *c) | |
627 { | |
884 | 628 ngx_int_t rc; |
591 | 629 |
630 if (ngx_ssl_create_connection(u->conf->ssl, c, | |
631 NGX_SSL_BUFFER|NGX_SSL_CLIENT) | |
632 == NGX_ERROR) | |
633 { | |
634 ngx_http_upstream_finalize_request(r, u, | |
635 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
636 return; | |
637 } | |
638 | |
639 c->sendfile = 0; | |
619 | 640 u->output.sendfile = 0; |
591 | 641 |
884 | 642 if (ngx_ssl_set_session(c, u->peer.ssl_session) != NGX_OK) { |
591 | 643 ngx_http_upstream_finalize_request(r, u, |
644 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
645 return; | |
646 } | |
647 | |
641 | 648 r->connection->log->action = "SSL handshaking to upstream"; |
649 | |
591 | 650 rc = ngx_ssl_handshake(c); |
651 | |
652 if (rc == NGX_AGAIN) { | |
653 c->ssl->handler = ngx_http_upstream_ssl_handshake; | |
654 return; | |
655 } | |
656 | |
657 ngx_http_upstream_ssl_handshake(c); | |
658 } | |
659 | |
660 | |
661 static void | |
577 | 662 ngx_http_upstream_ssl_handshake(ngx_connection_t *c) |
663 { | |
664 ngx_http_request_t *r; | |
665 ngx_http_upstream_t *u; | |
666 | |
667 r = c->data; | |
668 u = r->upstream; | |
669 | |
670 if (c->ssl->handshaked) { | |
671 | |
884 | 672 u->peer.save_session(&u->peer, u->peer.data); |
673 | |
577 | 674 c->write->handler = ngx_http_upstream_send_request_handler; |
675 c->read->handler = ngx_http_upstream_process_header; | |
676 | |
677 ngx_http_upstream_send_request(r, u); | |
678 | |
679 return; | |
680 } | |
681 | |
682 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
683 | |
684 } | |
685 | |
686 #endif | |
687 | |
688 | |
509 | 689 static ngx_int_t |
487 | 690 ngx_http_upstream_reinit(ngx_http_request_t *r, ngx_http_upstream_t *u) |
479 | 691 { |
692 ngx_chain_t *cl; | |
693 | |
509 | 694 if (u->reinit_request(r) != NGX_OK) { |
695 return NGX_ERROR; | |
696 } | |
697 | |
698 ngx_memzero(&r->upstream->headers_in, | |
699 sizeof(ngx_http_upstream_headers_in_t)); | |
700 | |
701 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, | |
591 | 702 sizeof(ngx_table_elt_t)) |
703 != NGX_OK) | |
509 | 704 { |
705 return NGX_ERROR; | |
479 | 706 } |
707 | |
708 /* reinit the request chain */ | |
577 | 709 |
509 | 710 for (cl = u->request_bufs; cl; cl = cl->next) { |
479 | 711 cl->buf->pos = cl->buf->start; |
712 cl->buf->file_pos = 0; | |
713 } | |
714 | |
509 | 715 /* reinit the subrequest's ngx_output_chain() context */ |
716 | |
573 | 717 if (r->request_body && r->request_body->temp_file |
597 | 718 && r != r->main && u->output.buf) |
573 | 719 { |
720 u->output.free = ngx_alloc_chain_link(r->pool); | |
721 if (u->output.free == NULL) { | |
722 return NGX_ERROR; | |
509 | 723 } |
573 | 724 |
725 u->output.free->buf = u->output.buf; | |
726 u->output.free->next = NULL; | |
727 | |
728 u->output.buf->pos = u->output.buf->start; | |
729 u->output.buf->last = u->output.buf->start; | |
509 | 730 } |
479 | 731 |
732 u->output.buf = NULL; | |
733 u->output.in = NULL; | |
734 u->output.busy = NULL; | |
577 | 735 |
581 | 736 /* reinit u->buffer */ |
577 | 737 |
479 | 738 #if 0 |
739 if (u->cache) { | |
581 | 740 u->buffer.pos = u->buffer.start + u->cache->ctx.header_size; |
741 u->buffer.last = u->buffer.pos; | |
479 | 742 |
743 } else { | |
581 | 744 u->buffer.pos = u->buffer.start; |
745 u->buffer.last = u->buffer.start; | |
479 | 746 } |
747 #else | |
509 | 748 |
581 | 749 u->buffer.pos = u->buffer.start; |
750 u->buffer.last = u->buffer.start; | |
509 | 751 |
479 | 752 #endif |
753 | |
509 | 754 return NGX_OK; |
479 | 755 } |
756 | |
757 | |
487 | 758 static void |
759 ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
479 | 760 { |
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761 ngx_int_t rc; |
483 | 762 ngx_connection_t *c; |
577 | 763 |
479 | 764 c = u->peer.connection; |
765 | |
766 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
767 "http upstream send request"); | |
768 | |
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769 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) { |
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770 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
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771 return; |
479 | 772 } |
773 | |
483 | 774 c->log->action = "sending request to upstream"; |
479 | 775 |
509 | 776 rc = ngx_output_chain(&u->output, u->request_sent ? NULL : u->request_bufs); |
479 | 777 |
778 u->request_sent = 1; | |
779 | |
780 if (rc == NGX_ERROR) { | |
781 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
782 return; | |
783 } | |
784 | |
785 if (c->write->timer_set) { | |
786 ngx_del_timer(c->write); | |
787 } | |
788 | |
789 if (rc == NGX_AGAIN) { | |
790 ngx_add_timer(c->write, u->conf->send_timeout); | |
791 | |
792 if (ngx_handle_write_event(c->write, u->conf->send_lowat) == NGX_ERROR) | |
793 { | |
794 ngx_http_upstream_finalize_request(r, u, | |
795 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
796 return; | |
797 } | |
798 | |
799 return; | |
800 } | |
801 | |
802 /* rc == NGX_OK */ | |
803 | |
804 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) { | |
805 if (ngx_tcp_push(c->fd) == NGX_ERROR) { | |
806 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno, | |
807 ngx_tcp_push_n " failed"); | |
808 ngx_http_upstream_finalize_request(r, u, | |
809 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
577 | 810 return; |
479 | 811 } |
812 | |
813 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET; | |
814 } | |
577 | 815 |
479 | 816 ngx_add_timer(c->read, u->conf->read_timeout); |
817 | |
818 #if 1 | |
819 if (c->read->ready) { | |
577 | 820 |
479 | 821 /* post aio operation */ |
822 | |
823 /* | |
824 * TODO comment | |
825 * although we can post aio operation just in the end | |
826 * of ngx_http_upstream_connect() CHECK IT !!! | |
827 * it's better to do here because we postpone header buffer allocation | |
828 */ | |
829 | |
830 ngx_http_upstream_process_header(c->read); | |
831 return; | |
832 } | |
833 #endif | |
834 | |
509 | 835 c->write->handler = ngx_http_upstream_dummy_handler; |
479 | 836 |
509 | 837 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) { |
479 | 838 ngx_http_upstream_finalize_request(r, u, |
839 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
840 return; | |
841 } | |
842 } | |
843 | |
844 | |
487 | 845 static void |
846 ngx_http_upstream_send_request_handler(ngx_event_t *wev) | |
479 | 847 { |
848 ngx_connection_t *c; | |
849 ngx_http_request_t *r; | |
850 ngx_http_upstream_t *u; | |
851 | |
852 c = wev->data; | |
853 r = c->data; | |
854 u = r->upstream; | |
855 | |
856 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
857 "http upstream send request handler"); | |
858 | |
859 if (wev->timedout) { | |
860 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
861 return; | |
862 } | |
863 | |
591 | 864 #if (NGX_HTTP_SSL) |
865 | |
866 if (u->conf->ssl && c->ssl == NULL) { | |
867 ngx_http_upstream_ssl_init_connection(r, u, c); | |
868 return; | |
869 } | |
870 | |
871 #endif | |
872 | |
651 | 873 if (u->header_sent) { |
874 wev->handler = ngx_http_upstream_dummy_handler; | |
875 | |
876 (void) ngx_handle_write_event(wev, 0); | |
877 | |
878 return; | |
879 } | |
880 | |
479 | 881 ngx_http_upstream_send_request(r, u); |
882 } | |
883 | |
884 | |
487 | 885 static void |
886 ngx_http_upstream_process_header(ngx_event_t *rev) | |
479 | 887 { |
515 | 888 ssize_t n; |
889 ngx_int_t rc; | |
573 | 890 ngx_str_t *uri, args; |
649 | 891 ngx_uint_t i, flags; |
515 | 892 ngx_list_part_t *part; |
893 ngx_table_elt_t *h; | |
894 ngx_connection_t *c; | |
895 ngx_http_request_t *r; | |
896 ngx_http_upstream_t *u; | |
897 ngx_http_err_page_t *err_page; | |
898 ngx_http_core_loc_conf_t *clcf; | |
899 ngx_http_upstream_header_t *hh; | |
900 ngx_http_upstream_main_conf_t *umcf; | |
479 | 901 |
902 c = rev->data; | |
903 r = c->data; | |
904 u = r->upstream; | |
905 | |
906 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, | |
483 | 907 "http upstream process header"); |
479 | 908 |
483 | 909 c->log->action = "reading response header from upstream"; |
479 | 910 |
911 if (rev->timedout) { | |
912 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
913 return; | |
914 } | |
577 | 915 |
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916 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) { |
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917 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
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918 return; |
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919 } |
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920 |
581 | 921 if (u->buffer.start == NULL) { |
922 u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size); | |
923 if (u->buffer.start == NULL) { | |
479 | 924 ngx_http_upstream_finalize_request(r, u, |
925 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
926 return; | |
927 } | |
928 | |
581 | 929 u->buffer.pos = u->buffer.start; |
930 u->buffer.last = u->buffer.start; | |
931 u->buffer.end = u->buffer.start + u->conf->buffer_size; | |
932 u->buffer.temporary = 1; | |
933 | |
934 u->buffer.tag = u->output.tag; | |
479 | 935 |
509 | 936 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, |
581 | 937 sizeof(ngx_table_elt_t)) |
938 != NGX_OK) | |
509 | 939 { |
940 ngx_http_upstream_finalize_request(r, u, | |
941 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
942 return; | |
943 } | |
944 | |
479 | 945 #if 0 |
946 if (u->cache) { | |
581 | 947 u->buffer.pos += u->cache->ctx.header_size; |
948 u->buffer.last = u->buffer.pos; | |
479 | 949 } |
950 #endif | |
951 } | |
952 | |
581 | 953 n = u->peer.connection->recv(u->peer.connection, u->buffer.last, |
884 | 954 u->buffer.end - u->buffer.last); |
479 | 955 |
956 if (n == NGX_AGAIN) { | |
957 #if 0 | |
958 ngx_add_timer(rev, u->read_timeout); | |
959 #endif | |
960 | |
961 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
962 ngx_http_upstream_finalize_request(r, u, | |
963 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
964 return; | |
965 } | |
966 | |
967 return; | |
968 } | |
969 | |
970 if (n == 0) { | |
971 ngx_log_error(NGX_LOG_ERR, rev->log, 0, | |
972 "upstream prematurely closed connection"); | |
973 } | |
974 | |
975 if (n == NGX_ERROR || n == 0) { | |
976 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
977 return; | |
978 } | |
979 | |
581 | 980 u->buffer.last += n; |
479 | 981 |
982 #if 0 | |
983 u->valid_header_in = 0; | |
984 | |
985 u->peer.cached = 0; | |
986 #endif | |
987 | |
988 rc = u->process_header(r); | |
989 | |
990 if (rc == NGX_AGAIN) { | |
991 #if 0 | |
992 ngx_add_timer(rev, u->read_timeout); | |
993 #endif | |
994 | |
581 | 995 if (u->buffer.pos == u->buffer.end) { |
479 | 996 ngx_log_error(NGX_LOG_ERR, rev->log, 0, |
997 "upstream sent too big header"); | |
998 | |
999 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
1000 return; | |
1001 } | |
1002 | |
1003 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
1004 ngx_http_upstream_finalize_request(r, u, | |
1005 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
1006 return; | |
1007 } | |
1008 | |
1009 return; | |
1010 } | |
1011 | |
1012 if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) { | |
1013 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
1014 return; | |
1015 } | |
1016 | |
1017 if (rc == NGX_ERROR || rc == NGX_HTTP_INTERNAL_SERVER_ERROR) { | |
1018 ngx_http_upstream_finalize_request(r, u, | |
1019 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
1020 return; | |
1021 } | |
1022 | |
1023 /* rc == NGX_OK */ | |
1024 | |
777
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|
1025 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
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|
1026 && r->subrequest_in_memory) |
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|
1027 { |
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diff
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|
1028 u->buffer.last = u->buffer.pos; |
4ab852b691f5
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|
1029 } |
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|
1030 |
529 | 1031 if (u->headers_in.status_n == NGX_HTTP_INTERNAL_SERVER_ERROR) { |
509 | 1032 |
1033 if (u->peer.tries > 1 | |
1034 && (u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
1035 { | |
1036 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_500); | |
1037 return; | |
1038 } | |
1039 | |
1040 #if (NGX_HTTP_CACHE) | |
1041 | |
1042 if (u->peer.tries == 0 | |
1043 && u->stale | |
1044 && (u->conf->use_stale & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
1045 { | |
1046 ngx_http_upstream_finalize_request(r, u, | |
529 | 1047 ngx_http_send_cached_response(r)); |
509 | 1048 return; |
1049 } | |
1050 | |
1051 #endif | |
1052 } | |
1053 | |
597 | 1054 if (u->headers_in.status_n == NGX_HTTP_NOT_FOUND) { |
1055 | |
1056 if (u->peer.tries > 1 | |
1057 && u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_404) | |
1058 { | |
1059 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_404); | |
1060 return; | |
1061 } | |
1062 | |
675 | 1063 if (u->conf->intercept_404) { |
1064 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_NOT_FOUND); | |
597 | 1065 return; |
1066 } | |
509 | 1067 } |
1068 | |
1069 | |
529 | 1070 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
675 | 1071 && u->conf->intercept_errors) |
487 | 1072 { |
1073 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
1074 | |
1075 if (clcf->error_pages) { | |
1076 | |
1077 err_page = clcf->error_pages->elts; | |
1078 for (i = 0; i < clcf->error_pages->nelts; i++) { | |
529 | 1079 if (err_page[i].status == (ngx_int_t) u->headers_in.status_n) { |
1080 | |
1081 if (u->headers_in.status_n == NGX_HTTP_UNAUTHORIZED) { | |
1082 | |
1083 r->headers_out.www_authenticate = | |
1084 ngx_list_push(&r->headers_out.headers); | |
1085 | |
1086 if (r->headers_out.www_authenticate == NULL) { | |
1087 ngx_http_upstream_finalize_request(r, u, | |
1088 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
1089 return; | |
1090 } | |
1091 | |
577 | 1092 *r->headers_out.www_authenticate = |
529 | 1093 *u->headers_in.www_authenticate; |
1094 } | |
1095 | |
487 | 1096 ngx_http_upstream_finalize_request(r, u, |
529 | 1097 u->headers_in.status_n); |
487 | 1098 return; |
1099 } | |
1100 } | |
1101 } | |
1102 } | |
1103 | |
681 | 1104 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); |
1105 | |
515 | 1106 if (r->upstream->headers_in.x_accel_redirect) { |
757
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|
1107 |
515 | 1108 ngx_http_upstream_finalize_request(r, u, NGX_DECLINED); |
1109 | |
1110 part = &r->upstream->headers_in.headers.part; | |
1111 h = part->elts; | |
1112 | |
1113 for (i = 0; /* void */; i++) { | |
1114 | |
1115 if (i >= part->nelts) { | |
1116 if (part->next == NULL) { | |
1117 break; | |
1118 } | |
577 | 1119 |
515 | 1120 part = part->next; |
1121 h = part->elts; | |
1122 i = 0; | |
1123 } | |
1124 | |
649 | 1125 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, |
1126 h[i].lowcase_key, h[i].key.len); | |
1127 | |
1128 if (hh && hh->redirect) { | |
1129 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
787
b310630d129e
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parents:
777
diff
changeset
|
1130 ngx_http_finalize_request(r, |
757
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diff
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|
1131 NGX_HTTP_INTERNAL_SERVER_ERROR); |
515 | 1132 return; |
1133 } | |
1134 } | |
1135 } | |
1136 | |
573 | 1137 uri = &r->upstream->headers_in.x_accel_redirect->value; |
1138 args.len = 0; | |
1139 args.data = NULL; | |
1140 flags = 0; | |
1141 | |
1142 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) { | |
757
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parents:
756
diff
changeset
|
1143 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND); |
573 | 1144 return; |
1145 } | |
1146 | |
1147 if (flags & NGX_HTTP_ZERO_IN_URI) { | |
1148 r->zero_in_uri = 1; | |
1149 } | |
1150 | |
653 | 1151 if (r->method != NGX_HTTP_HEAD) { |
1152 r->method = NGX_HTTP_GET; | |
1153 } | |
1154 | |
573 | 1155 ngx_http_internal_redirect(r, uri, &args); |
515 | 1156 return; |
1157 } | |
1158 | |
509 | 1159 part = &r->upstream->headers_in.headers.part; |
1160 h = part->elts; | |
1161 | |
1162 for (i = 0; /* void */; i++) { | |
479 | 1163 |
509 | 1164 if (i >= part->nelts) { |
1165 if (part->next == NULL) { | |
1166 break; | |
1167 } | |
577 | 1168 |
509 | 1169 part = part->next; |
1170 h = part->elts; | |
1171 i = 0; | |
1172 } | |
1173 | |
649 | 1174 if (ngx_hash_find(&u->conf->hide_headers_hash, h[i].hash, |
1175 h[i].lowcase_key, h[i].key.len)) | |
509 | 1176 { |
649 | 1177 continue; |
1178 } | |
1179 | |
1180 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, | |
1181 h[i].lowcase_key, h[i].key.len); | |
1182 | |
1183 if (hh) { | |
1184 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
509 | 1185 ngx_http_upstream_finalize_request(r, u, |
1186 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
1187 return; | |
1188 } | |
1189 | |
1190 continue; | |
1191 } | |
1192 | |
1193 if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) { | |
1194 ngx_http_upstream_finalize_request(r, u, | |
1195 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
1196 return; | |
1197 } | |
1198 } | |
1199 | |
649 | 1200 if (r->headers_out.server && r->headers_out.server->value.data == NULL) { |
1201 r->headers_out.server->hash = 0; | |
1202 } | |
1203 | |
1204 if (r->headers_out.date && r->headers_out.date->value.data == NULL) { | |
1205 r->headers_out.date->hash = 0; | |
1206 } | |
1207 | |
529 | 1208 r->headers_out.status = u->headers_in.status_n; |
1209 r->headers_out.status_line = u->headers_in.status_line; | |
1210 | |
581 | 1211 if (r->headers_out.content_length_n != -1) { |
1212 u->length = (size_t) r->headers_out.content_length_n; | |
1213 | |
1214 } else { | |
1215 u->length = NGX_MAX_SIZE_T_VALUE; | |
1216 } | |
1217 | |
777
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|
1218 if (!r->subrequest_in_memory) { |
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diff
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|
1219 ngx_http_upstream_send_response(r, u); |
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diff
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|
1220 return; |
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diff
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|
1221 } |
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diff
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|
1222 |
4ab852b691f5
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diff
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|
1223 /* subrequest content in memory */ |
4ab852b691f5
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diff
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|
1224 |
4ab852b691f5
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|
1225 if (u->input_filter == NULL) { |
4ab852b691f5
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parents:
757
diff
changeset
|
1226 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; |
4ab852b691f5
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parents:
757
diff
changeset
|
1227 u->input_filter = ngx_http_upstream_non_buffered_filter; |
4ab852b691f5
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parents:
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diff
changeset
|
1228 u->input_filter_ctx = r; |
4ab852b691f5
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diff
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|
1229 } |
4ab852b691f5
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diff
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|
1230 |
4ab852b691f5
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diff
changeset
|
1231 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { |
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1232 ngx_http_upstream_finalize_request(r, u, |
4ab852b691f5
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parents:
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diff
changeset
|
1233 NGX_HTTP_INTERNAL_SERVER_ERROR); |
4ab852b691f5
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diff
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|
1234 return; |
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diff
changeset
|
1235 } |
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diff
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|
1236 |
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1237 if (u->buffer.last - u->buffer.pos >= (ssize_t) u->length) { |
4ab852b691f5
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parents:
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diff
changeset
|
1238 if (u->input_filter(u->input_filter_ctx, 0) == NGX_ERROR) { |
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1239 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
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parents:
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diff
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|
1240 return; |
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diff
changeset
|
1241 } |
4ab852b691f5
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diff
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|
1242 |
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diff
changeset
|
1243 ngx_http_upstream_finalize_request(r, u, 0); |
4ab852b691f5
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parents:
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diff
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|
1244 return; |
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diff
changeset
|
1245 } |
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|
1246 |
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diff
changeset
|
1247 rev->handler = ngx_http_upstream_process_body_in_memory; |
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diff
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|
1248 |
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diff
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|
1249 ngx_http_upstream_process_body_in_memory(rev); |
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diff
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|
1250 } |
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|
1251 |
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|
1252 |
1153
c843f3df3b85
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diff
changeset
|
1253 static ngx_int_t |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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diff
changeset
|
1254 ngx_http_upstream_test_connect(ngx_connection_t *c) |
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diff
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|
1255 { |
c843f3df3b85
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diff
changeset
|
1256 int err; |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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parents:
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diff
changeset
|
1257 socklen_t len; |
c843f3df3b85
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diff
changeset
|
1258 |
c843f3df3b85
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diff
changeset
|
1259 #if (NGX_HAVE_KQUEUE) |
c843f3df3b85
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diff
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|
1260 |
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diff
changeset
|
1261 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
c843f3df3b85
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diff
changeset
|
1262 if (c->write->pending_eof) { |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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parents:
1143
diff
changeset
|
1263 (void) ngx_connection_error(c, c->write->kq_errno, |
c843f3df3b85
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diff
changeset
|
1264 "kevent() reported that connect() failed"); |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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diff
changeset
|
1265 return NGX_ERROR; |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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diff
changeset
|
1266 } |
c843f3df3b85
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diff
changeset
|
1267 |
c843f3df3b85
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diff
changeset
|
1268 } else |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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parents:
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diff
changeset
|
1269 #endif |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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diff
changeset
|
1270 { |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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diff
changeset
|
1271 err = 0; |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
1272 len = sizeof(int); |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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diff
changeset
|
1273 |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
1274 /* |
c843f3df3b85
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diff
changeset
|
1275 * BSDs and Linux return 0 and set a pending error in err |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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diff
changeset
|
1276 * Solaris returns -1 and sets errno |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
1277 */ |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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diff
changeset
|
1278 |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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diff
changeset
|
1279 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len) |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
1280 == -1) |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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diff
changeset
|
1281 { |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
1282 err = ngx_errno; |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
1283 } |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
1284 |
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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parents:
1143
diff
changeset
|
1285 if (err) { |
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1286 (void) ngx_connection_error(c, err, "connect() failed"); |
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1287 return NGX_ERROR; |
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1288 } |
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1289 } |
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1290 |
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1291 return NGX_OK; |
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1292 } |
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1293 |
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1294 |
777
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1295 static void |
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1296 ngx_http_upstream_process_body_in_memory(ngx_event_t *rev) |
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1297 { |
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1298 size_t size; |
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1299 ssize_t n; |
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1300 ngx_buf_t *b; |
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1301 ngx_connection_t *c; |
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1302 ngx_http_request_t *r; |
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1303 ngx_http_upstream_t *u; |
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1304 |
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1305 c = rev->data; |
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1306 r = c->data; |
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1307 u = r->upstream; |
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1308 |
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1309 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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1310 "http upstream process body on memory"); |
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1311 |
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1312 if (rev->timedout) { |
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1313 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
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1314 ngx_http_upstream_finalize_request(r, u, NGX_ETIMEDOUT); |
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1315 return; |
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1316 } |
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1317 |
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1318 b = &u->buffer; |
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1319 |
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1320 for ( ;; ) { |
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1321 |
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1322 size = b->end - b->last; |
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1323 |
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1324 if (size == 0) { |
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1325 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
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1326 "upstream buffer is too small to read repsonse"); |
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1327 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
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1328 return; |
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1329 } |
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1330 |
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1331 n = c->recv(c, b->last, size); |
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1332 |
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1333 if (n == NGX_AGAIN) { |
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1334 break; |
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1335 } |
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1336 |
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1337 if (n == 0 || n == NGX_ERROR) { |
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1338 ngx_http_upstream_finalize_request(r, u, n); |
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1339 return; |
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1340 } |
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1341 |
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1342 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { |
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1343 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
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1344 return; |
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1345 } |
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1346 |
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1347 if (!rev->ready) { |
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1348 break; |
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1349 } |
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1350 } |
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1351 |
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1352 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { |
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1353 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
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1354 return; |
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1355 } |
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1356 |
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1357 if (rev->active) { |
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1358 ngx_add_timer(rev, u->conf->read_timeout); |
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1359 |
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1360 } else if (rev->timer_set) { |
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1361 ngx_del_timer(rev); |
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1362 } |
681 | 1363 } |
1364 | |
1365 | |
1366 static void | |
1367 ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
1368 { | |
1369 int tcp_nodelay; | |
1370 ssize_t size; | |
1371 ngx_int_t rc; | |
1372 ngx_event_pipe_t *p; | |
1373 ngx_connection_t *c; | |
1374 ngx_pool_cleanup_t *cl; | |
1375 ngx_pool_cleanup_file_t *clf; | |
1376 ngx_http_core_loc_conf_t *clcf; | |
1377 | |
509 | 1378 rc = ngx_http_send_header(r); |
479 | 1379 |
1031
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1380 if (rc == NGX_ERROR || rc > NGX_OK || r->post_action || r->header_only) { |
485 | 1381 ngx_http_upstream_finalize_request(r, u, rc); |
479 | 1382 return; |
1383 } | |
1384 | |
1385 u->header_sent = 1; | |
1386 | |
573 | 1387 if (r->request_body && r->request_body->temp_file) { |
563 | 1388 for (cl = r->pool->cleanup; cl; cl = cl->next) { |
1389 if (cl->handler == ngx_pool_cleanup_file) { | |
1390 clf = cl->data; | |
1391 | |
1392 if (clf->fd == r->request_body->temp_file->file.fd) { | |
1393 cl->handler(clf); | |
1394 cl->handler = NULL; | |
659 | 1395 r->request_body->temp_file->file.fd = NGX_INVALID_FILE; |
563 | 1396 break; |
1397 } | |
1398 } | |
1399 } | |
1400 } | |
1401 | |
583 | 1402 c = r->connection; |
1403 | |
581 | 1404 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
1405 | |
649 | 1406 if (!u->buffering) { |
581 | 1407 |
1408 if (u->input_filter == NULL) { | |
1409 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; | |
1410 u->input_filter = ngx_http_upstream_non_buffered_filter; | |
1411 u->input_filter_ctx = r; | |
1412 } | |
1413 | |
1414 u->peer.connection->read->handler = | |
1415 ngx_http_upstream_process_non_buffered_body; | |
1416 r->write_event_handler = | |
1417 ngx_http_upstream_process_non_buffered_downstream; | |
1418 | |
1419 r->limit_rate = 0; | |
1420 | |
1421 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { | |
1422 ngx_http_upstream_finalize_request(r, u, 0); | |
1423 return; | |
1424 } | |
1425 | |
583 | 1426 if (clcf->tcp_nodelay && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) { |
1427 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay"); | |
1428 | |
1429 tcp_nodelay = 1; | |
1430 | |
1431 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY, | |
1432 (const void *) &tcp_nodelay, sizeof(int)) == -1) | |
1433 { | |
1434 ngx_connection_error(c, ngx_socket_errno, | |
1435 "setsockopt(TCP_NODELAY) failed"); | |
1436 ngx_http_upstream_finalize_request(r, u, 0); | |
1437 return; | |
1438 } | |
1439 | |
1440 c->tcp_nodelay = NGX_TCP_NODELAY_SET; | |
1441 } | |
1442 | |
581 | 1443 size = u->buffer.last - u->buffer.pos; |
1444 | |
1445 if (size) { | |
1446 u->buffer.last = u->buffer.pos; | |
1447 | |
1448 if (u->input_filter(u->input_filter_ctx, size) == NGX_ERROR) { | |
1449 ngx_http_upstream_finalize_request(r, u, 0); | |
1450 return; | |
1451 } | |
1452 | |
583 | 1453 ngx_http_upstream_process_non_buffered_body(c->write); |
581 | 1454 |
1455 } else { | |
1456 u->buffer.pos = u->buffer.start; | |
1457 u->buffer.last = u->buffer.start; | |
1458 | |
1459 if (ngx_http_send_special(r, NGX_HTTP_FLUSH) == NGX_ERROR) { | |
1460 ngx_http_upstream_finalize_request(r, u, 0); | |
1461 return; | |
1462 } | |
1463 } | |
1464 | |
1465 return; | |
1466 } | |
1467 | |
479 | 1468 /* TODO: preallocate event_pipe bufs, look "Content-Length" */ |
1469 | |
1470 #if 0 | |
1471 | |
1472 if (u->cache && u->cache->ctx.file.fd != NGX_INVALID_FILE) { | |
1473 if (ngx_close_file(u->cache->ctx.file.fd) == NGX_FILE_ERROR) { | |
583 | 1474 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
479 | 1475 ngx_close_file_n " \"%s\" failed", |
1476 u->cache->ctx.file.name.data); | |
1477 } | |
1478 } | |
1479 | |
1480 if (u->cachable) { | |
581 | 1481 header = (ngx_http_cache_header_t *) u->buffer->start; |
479 | 1482 |
1483 header->expires = u->cache->ctx.expires; | |
1484 header->last_modified = u->cache->ctx.last_modified; | |
1485 header->date = u->cache->ctx.date; | |
1486 header->length = r->headers_out.content_length_n; | |
1487 u->cache->ctx.length = r->headers_out.content_length_n; | |
1488 | |
1489 header->key_len = u->cache->ctx.key0.len; | |
1490 ngx_memcpy(&header->key, u->cache->ctx.key0.data, header->key_len); | |
1491 header->key[header->key_len] = LF; | |
1492 } | |
1493 | |
1494 #endif | |
1495 | |
581 | 1496 p = u->pipe; |
479 | 1497 |
1498 p->output_filter = (ngx_event_pipe_output_filter_pt) ngx_http_output_filter; | |
1499 p->output_ctx = r; | |
1500 p->tag = u->output.tag; | |
577 | 1501 p->bufs = u->conf->bufs; |
479 | 1502 p->busy_size = u->conf->busy_buffers_size; |
1503 p->upstream = u->peer.connection; | |
583 | 1504 p->downstream = c; |
479 | 1505 p->pool = r->pool; |
583 | 1506 p->log = c->log; |
577 | 1507 |
479 | 1508 p->cachable = u->cachable; |
1509 | |
501 | 1510 p->temp_file = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t)); |
1511 if (p->temp_file == NULL) { | |
479 | 1512 ngx_http_upstream_finalize_request(r, u, 0); |
1513 return; | |
1514 } | |
1515 | |
1516 p->temp_file->file.fd = NGX_INVALID_FILE; | |
583 | 1517 p->temp_file->file.log = c->log; |
479 | 1518 p->temp_file->path = u->conf->temp_path; |
1519 p->temp_file->pool = r->pool; | |
577 | 1520 |
479 | 1521 if (u->cachable) { |
1522 p->temp_file->persistent = 1; | |
1523 } else { | |
667 | 1524 p->temp_file->log_level = NGX_LOG_WARN; |
479 | 1525 p->temp_file->warn = "an upstream response is buffered " |
1526 "to a temporary file"; | |
1527 } | |
1528 | |
1529 p->max_temp_file_size = u->conf->max_temp_file_size; | |
1530 p->temp_file_write_size = u->conf->temp_file_write_size; | |
1531 | |
501 | 1532 p->preread_bufs = ngx_alloc_chain_link(r->pool); |
1533 if (p->preread_bufs == NULL) { | |
479 | 1534 ngx_http_upstream_finalize_request(r, u, 0); |
1535 return; | |
1536 } | |
581 | 1537 p->preread_bufs->buf = &u->buffer; |
479 | 1538 p->preread_bufs->next = NULL; |
581 | 1539 u->buffer.recycled = 1; |
1540 | |
1541 p->preread_size = u->buffer.last - u->buffer.pos; | |
479 | 1542 |
1543 if (u->cachable) { | |
1544 p->buf_to_file = ngx_calloc_buf(r->pool); | |
1545 if (p->buf_to_file == NULL) { | |
1546 ngx_http_upstream_finalize_request(r, u, 0); | |
1547 return; | |
1548 } | |
581 | 1549 p->buf_to_file->pos = u->buffer.start; |
1550 p->buf_to_file->last = u->buffer.pos; | |
479 | 1551 p->buf_to_file->temporary = 1; |
1552 } | |
1553 | |
1554 if (ngx_event_flags & NGX_USE_AIO_EVENT) { | |
1555 /* the posted aio operation may currupt a shadow buffer */ | |
1556 p->single_buf = 1; | |
1557 } | |
1558 | |
1559 /* TODO: p->free_bufs = 0 if use ngx_create_chain_of_bufs() */ | |
1560 p->free_bufs = 1; | |
1561 | |
1562 /* | |
581 | 1563 * event_pipe would do u->buffer.last += p->preread_size |
479 | 1564 * as though these bytes were read |
1565 */ | |
581 | 1566 u->buffer.last = u->buffer.pos; |
479 | 1567 |
1568 if (u->conf->cyclic_temp_file) { | |
1569 | |
1570 /* | |
1571 * we need to disable the use of sendfile() if we use cyclic temp file | |
1572 * because the writing a new data may interfere with sendfile() | |
1573 * that uses the same kernel file pages (at least on FreeBSD) | |
1574 */ | |
1575 | |
1576 p->cyclic_temp_file = 1; | |
583 | 1577 c->sendfile = 0; |
479 | 1578 |
1579 } else { | |
1580 p->cyclic_temp_file = 0; | |
1581 } | |
1582 | |
1583 p->read_timeout = u->conf->read_timeout; | |
1584 p->send_timeout = clcf->send_timeout; | |
1585 p->send_lowat = clcf->send_lowat; | |
1586 | |
509 | 1587 u->peer.connection->read->handler = ngx_http_upstream_process_body; |
1588 r->write_event_handler = ngx_http_upstream_process_downstream; | |
479 | 1589 |
1590 ngx_http_upstream_process_body(u->peer.connection->read); | |
1591 } | |
1592 | |
1593 | |
487 | 1594 static void |
581 | 1595 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r) |
1596 { | |
1597 ngx_http_upstream_process_non_buffered_body(r->connection->write); | |
1598 } | |
1599 | |
1600 | |
1601 static void | |
1602 ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev) | |
1603 { | |
1604 size_t size; | |
1605 ssize_t n; | |
1606 ngx_buf_t *b; | |
583 | 1607 ngx_int_t rc; |
581 | 1608 ngx_uint_t do_write; |
884 | 1609 ngx_connection_t *c, *downstream, *upstream; |
581 | 1610 ngx_http_request_t *r; |
1611 ngx_http_upstream_t *u; | |
1612 ngx_http_core_loc_conf_t *clcf; | |
1613 | |
1614 c = ev->data; | |
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1615 r = c->data; |
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1616 u = r->upstream; |
581 | 1617 |
1618 if (ev->write) { | |
1619 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
1620 "http upstream process non buffered downstream"); | |
1621 c->log->action = "sending to client"; | |
1622 | |
1623 } else { | |
1624 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
1625 "http upstream process non buffered upstream"); | |
1626 c->log->action = "reading upstream"; | |
1627 } | |
1628 | |
1629 if (ev->timedout) { | |
1630 if (ev->write) { | |
1631 c->timedout = 1; | |
611 | 1632 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
1633 | |
581 | 1634 } else { |
611 | 1635 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
581 | 1636 } |
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1637 |
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1638 ngx_http_upstream_finalize_request(r, u, 0); |
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1639 return; |
581 | 1640 } |
1641 | |
884 | 1642 downstream = r->connection; |
1643 upstream = u->peer.connection; | |
581 | 1644 |
1645 b = &u->buffer; | |
1646 | |
1647 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
1648 | |
657 | 1649 do_write = ev->write || u->length == 0; |
581 | 1650 |
1651 for ( ;; ) { | |
1652 | |
1653 if (do_write) { | |
1654 | |
1655 if (u->out_bufs || u->busy_bufs) { | |
583 | 1656 rc = ngx_http_output_filter(r, u->out_bufs); |
1657 | |
884 | 1658 if (downstream->destroyed) { |
583 | 1659 return; |
1660 } | |
1661 | |
1662 if (rc == NGX_ERROR) { | |
581 | 1663 ngx_http_upstream_finalize_request(r, u, 0); |
1664 return; | |
1665 } | |
1666 | |
1667 ngx_chain_update_chains(&u->free_bufs, &u->busy_bufs, | |
1668 &u->out_bufs, u->output.tag); | |
1669 } | |
1670 | |
1671 if (u->busy_bufs == NULL) { | |
1672 | |
1673 if (u->length == 0 | |
884 | 1674 || upstream->read->eof |
1675 || upstream->read->error) | |
581 | 1676 { |
1677 ngx_http_upstream_finalize_request(r, u, 0); | |
1678 return; | |
1679 } | |
1680 | |
1681 b->pos = b->start; | |
1682 b->last = b->start; | |
1683 } | |
1684 } | |
1685 | |
1686 size = b->end - b->last; | |
1687 | |
1688 if (size > u->length) { | |
1689 size = u->length; | |
1690 } | |
1691 | |
884 | 1692 if (size && upstream->read->ready) { |
1693 | |
1694 n = upstream->recv(upstream, b->last, size); | |
581 | 1695 |
1696 if (n == NGX_AGAIN) { | |
1697 break; | |
1698 } | |
1699 | |
1700 if (n > 0) { | |
1701 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { | |
1702 ngx_http_upstream_finalize_request(r, u, 0); | |
1703 return; | |
1704 } | |
1705 } | |
1706 | |
1707 do_write = 1; | |
1708 | |
1709 continue; | |
1710 } | |
1711 | |
1712 break; | |
1713 } | |
1714 | |
884 | 1715 if (downstream->data == r) { |
1716 if (ngx_handle_write_event(downstream->write, clcf->send_lowat) | |
583 | 1717 == NGX_ERROR) |
1718 { | |
1719 ngx_http_upstream_finalize_request(r, u, 0); | |
1720 return; | |
1721 } | |
581 | 1722 } |
1723 | |
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1724 if (downstream->write->active && !downstream->write->ready) { |
884 | 1725 ngx_add_timer(downstream->write, clcf->send_timeout); |
1726 | |
1727 } else if (downstream->write->timer_set) { | |
1728 ngx_del_timer(downstream->write); | |
581 | 1729 } |
1730 | |
884 | 1731 if (ngx_handle_read_event(upstream->read, 0) == NGX_ERROR) { |
581 | 1732 ngx_http_upstream_finalize_request(r, u, 0); |
1733 return; | |
1734 } | |
1735 | |
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1736 if (upstream->read->active && !upstream->read->ready) { |
884 | 1737 ngx_add_timer(upstream->read, u->conf->read_timeout); |
1738 | |
1739 } else if (upstream->read->timer_set) { | |
1740 ngx_del_timer(upstream->read); | |
581 | 1741 } |
1742 } | |
1743 | |
1744 | |
1745 static ngx_int_t | |
1746 ngx_http_upstream_non_buffered_filter_init(void *data) | |
1747 { | |
1748 return NGX_OK; | |
1749 } | |
1750 | |
1751 | |
1752 static ngx_int_t | |
1753 ngx_http_upstream_non_buffered_filter(void *data, ssize_t bytes) | |
1754 { | |
1755 ngx_http_request_t *r = data; | |
1756 | |
1757 ngx_buf_t *b; | |
1758 ngx_chain_t *cl, **ll; | |
1759 ngx_http_upstream_t *u; | |
1760 | |
1761 u = r->upstream; | |
1762 | |
1763 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
1764 ll = &cl->next; | |
1765 } | |
1766 | |
1767 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
1768 if (cl == NULL) { | |
1769 return NGX_ERROR; | |
1770 } | |
1771 | |
1772 *ll = cl; | |
1773 | |
1774 cl->buf->flush = 1; | |
1775 cl->buf->memory = 1; | |
1776 | |
1777 b = &u->buffer; | |
1778 | |
1779 cl->buf->pos = b->last; | |
1780 b->last += bytes; | |
1781 cl->buf->last = b->last; | |
1782 | |
1783 if (u->length == NGX_MAX_SIZE_T_VALUE) { | |
1784 return NGX_OK; | |
1785 } | |
1786 | |
1787 u->length -= bytes; | |
1788 | |
1789 return NGX_OK; | |
1790 } | |
1791 | |
1792 | |
1793 static void | |
509 | 1794 ngx_http_upstream_process_downstream(ngx_http_request_t *r) |
1795 { | |
1796 ngx_http_upstream_process_body(r->connection->write); | |
1797 } | |
1798 | |
1799 | |
1800 static void | |
487 | 1801 ngx_http_upstream_process_body(ngx_event_t *ev) |
479 | 1802 { |
509 | 1803 ngx_event_pipe_t *p; |
583 | 1804 ngx_connection_t *c, *downstream; |
1098 | 1805 ngx_http_log_ctx_t *ctx; |
479 | 1806 ngx_http_request_t *r; |
1807 ngx_http_upstream_t *u; | |
1808 | |
1809 c = ev->data; | |
1810 r = c->data; | |
1811 u = r->upstream; | |
583 | 1812 downstream = r->connection; |
479 | 1813 |
1814 if (ev->write) { | |
483 | 1815 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
1816 "http upstream process downstream"); | |
1817 c->log->action = "sending to client"; | |
577 | 1818 |
479 | 1819 } else { |
483 | 1820 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
1821 "http upstream process upstream"); | |
1822 c->log->action = "reading upstream"; | |
1098 | 1823 |
1824 ctx = c->log->data; | |
1825 ctx->current_request = r; | |
479 | 1826 } |
577 | 1827 |
581 | 1828 p = u->pipe; |
479 | 1829 |
1830 if (ev->timedout) { | |
1831 if (ev->write) { | |
527 | 1832 if (ev->delayed) { |
1833 | |
1834 ev->timedout = 0; | |
1835 ev->delayed = 0; | |
1836 | |
1837 if (!ev->ready) { | |
1838 ngx_add_timer(ev, p->send_timeout); | |
1839 | |
1840 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) | |
1841 { | |
1842 ngx_http_upstream_finalize_request(r, u, 0); | |
1843 return; | |
1844 } | |
1845 | |
1846 return; | |
1847 } | |
1848 | |
1849 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { | |
583 | 1850 |
1851 if (downstream->destroyed) { | |
1852 return; | |
1853 } | |
1854 | |
527 | 1855 ngx_http_upstream_finalize_request(r, u, 0); |
1856 return; | |
1857 } | |
1858 | |
1859 } else { | |
1860 p->downstream_error = 1; | |
577 | 1861 c->timedout = 1; |
611 | 1862 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
527 | 1863 } |
479 | 1864 |
1865 } else { | |
577 | 1866 p->upstream_error = 1; |
611 | 1867 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
479 | 1868 } |
1869 | |
1870 } else { | |
527 | 1871 if (ev->write && ev->delayed) { |
1872 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
1873 "http downstream delayed"); | |
1874 | |
1875 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) { | |
1876 return; | |
1877 } | |
1878 | |
1879 return; | |
1880 } | |
1881 | |
479 | 1882 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { |
583 | 1883 |
1884 if (downstream->destroyed) { | |
1885 return; | |
1886 } | |
1887 | |
479 | 1888 ngx_http_upstream_finalize_request(r, u, 0); |
1889 return; | |
1890 } | |
1891 } | |
577 | 1892 |
479 | 1893 if (u->peer.connection) { |
1894 | |
1895 #if (NGX_HTTP_FILE_CACHE) | |
1896 | |
1897 if (p->upstream_done && u->cachable) { | |
1898 if (ngx_http_cache_update(r) == NGX_ERROR) { | |
1899 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
1900 ngx_http_upstream_finalize_request(r, u, 0); | |
1901 return; | |
1902 } | |
1903 | |
1904 } else if (p->upstream_eof && u->cachable) { | |
1905 | |
1906 /* TODO: check length & update cache */ | |
1907 | |
1908 if (ngx_http_cache_update(r) == NGX_ERROR) { | |
1909 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
1910 ngx_http_upstream_finalize_request(r, u, 0); | |
1911 return; | |
1912 } | |
1913 } | |
1914 | |
1915 #endif | |
1916 | |
1917 if (p->upstream_done || p->upstream_eof || p->upstream_error) { | |
483 | 1918 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, |
1919 "http upstream exit: %p", p->out); | |
479 | 1920 #if 0 |
1921 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
1922 #endif | |
1923 ngx_http_upstream_finalize_request(r, u, 0); | |
1924 return; | |
1925 } | |
1926 } | |
1927 | |
1928 if (p->downstream_error) { | |
483 | 1929 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
1930 "http upstream downstream error"); | |
479 | 1931 |
1932 if (!u->cachable && u->peer.connection) { | |
1933 ngx_http_upstream_finalize_request(r, u, 0); | |
1934 } | |
1935 } | |
1936 } | |
1937 | |
1938 | |
487 | 1939 static void |
1940 ngx_http_upstream_dummy_handler(ngx_event_t *wev) | |
479 | 1941 { |
1942 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
1943 "http upstream dummy handler"); | |
1944 } | |
1945 | |
1946 | |
487 | 1947 static void |
1948 ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u, | |
1949 ngx_uint_t ft_type) | |
479 | 1950 { |
884 | 1951 ngx_uint_t status, state; |
479 | 1952 |
1953 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
884 | 1954 "http next upstream, %xi", ft_type); |
479 | 1955 |
1956 #if 0 | |
1957 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
1958 #endif | |
1959 | |
525 | 1960 if (ft_type == NGX_HTTP_UPSTREAM_FT_HTTP_404) { |
884 | 1961 state = NGX_PEER_NEXT; |
525 | 1962 } else { |
884 | 1963 state = NGX_PEER_FAILED; |
479 | 1964 } |
525 | 1965 |
884 | 1966 u->peer.free(&u->peer, u->peer.data, state); |
525 | 1967 |
479 | 1968 if (ft_type == NGX_HTTP_UPSTREAM_FT_TIMEOUT) { |
1969 ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_ETIMEDOUT, | |
1970 "upstream timed out"); | |
1971 } | |
577 | 1972 |
479 | 1973 if (u->peer.cached && ft_type == NGX_HTTP_UPSTREAM_FT_ERROR) { |
1974 status = 0; | |
1975 | |
1976 } else { | |
1977 switch(ft_type) { | |
1978 | |
1979 case NGX_HTTP_UPSTREAM_FT_TIMEOUT: | |
1980 status = NGX_HTTP_GATEWAY_TIME_OUT; | |
1981 break; | |
1982 | |
1983 case NGX_HTTP_UPSTREAM_FT_HTTP_500: | |
1984 status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
1985 break; | |
1986 | |
1987 case NGX_HTTP_UPSTREAM_FT_HTTP_404: | |
1988 status = NGX_HTTP_NOT_FOUND; | |
1989 break; | |
1990 | |
1991 /* | |
1992 * NGX_HTTP_UPSTREAM_FT_BUSY_LOCK and NGX_HTTP_UPSTREAM_FT_MAX_WAITING | |
1993 * never reach here | |
1994 */ | |
1995 | |
1996 default: | |
1997 status = NGX_HTTP_BAD_GATEWAY; | |
1998 } | |
1999 } | |
2000 | |
583 | 2001 if (r->connection->error) { |
479 | 2002 ngx_http_upstream_finalize_request(r, u, |
2003 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
2004 return; | |
2005 } | |
2006 | |
2007 if (status) { | |
2008 u->state->status = status; | |
2009 | |
525 | 2010 if (u->peer.tries == 0 || !(u->conf->next_upstream & ft_type)) { |
479 | 2011 |
2012 #if (NGX_HTTP_CACHE) | |
2013 | |
2014 if (u->stale && (u->conf->use_stale & ft_type)) { | |
2015 ngx_http_upstream_finalize_request(r, u, | |
525 | 2016 ngx_http_send_cached_response(r)); |
479 | 2017 return; |
2018 } | |
2019 | |
2020 #endif | |
2021 | |
2022 ngx_http_upstream_finalize_request(r, u, status); | |
2023 return; | |
2024 } | |
2025 } | |
2026 | |
2027 if (u->peer.connection) { | |
2028 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2029 "close http upstream connection: %d", | |
2030 u->peer.connection->fd); | |
577 | 2031 #if (NGX_HTTP_SSL) |
884 | 2032 |
577 | 2033 if (u->peer.connection->ssl) { |
884 | 2034 u->peer.connection->ssl->no_wait_shutdown = 1; |
2035 u->peer.connection->ssl->no_send_shutdown = 1; | |
2036 | |
2037 (void) ngx_ssl_shutdown(u->peer.connection); | |
577 | 2038 } |
2039 #endif | |
884 | 2040 |
479 | 2041 ngx_close_connection(u->peer.connection); |
2042 } | |
2043 | |
2044 #if 0 | |
2045 if (u->conf->busy_lock && !u->busy_locked) { | |
2046 ngx_http_upstream_busy_lock(p); | |
2047 return; | |
2048 } | |
2049 #endif | |
2050 | |
2051 ngx_http_upstream_connect(r, u); | |
2052 } | |
2053 | |
2054 | |
487 | 2055 static void |
569 | 2056 ngx_http_upstream_cleanup(void *data) |
2057 { | |
2058 ngx_http_request_t *r = data; | |
2059 | |
2060 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2061 "cleanup http upstream request: \"%V\"", &r->uri); | |
2062 | |
2063 ngx_http_upstream_finalize_request(r, r->upstream, NGX_DONE); | |
2064 } | |
2065 | |
2066 | |
2067 static void | |
487 | 2068 ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
2069 ngx_http_upstream_t *u, ngx_int_t rc) | |
479 | 2070 { |
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2071 ngx_time_t *tp; |
563 | 2072 |
483 | 2073 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
2074 "finalize http upstream request: %i", rc); | |
479 | 2075 |
569 | 2076 *u->cleanup = NULL; |
2077 | |
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2078 if (u->state->response_sec) { |
563 | 2079 tp = ngx_timeofday(); |
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2080 u->state->response_sec = tp->sec - u->state->response_sec; |
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2081 u->state->response_msec = tp->msec - u->state->response_msec; |
563 | 2082 } |
2083 | |
479 | 2084 u->finalize_request(r, rc); |
2085 | |
884 | 2086 u->peer.free(&u->peer, u->peer.data, 0); |
2087 | |
479 | 2088 if (u->peer.connection) { |
884 | 2089 |
577 | 2090 #if (NGX_HTTP_SSL) |
2091 | |
2092 /* TODO: do not shutdown persistent connection */ | |
2093 | |
2094 if (u->peer.connection->ssl) { | |
884 | 2095 |
2096 /* | |
2097 * We send the "close notify" shutdown alert to the upstream only | |
2098 * and do not wait its "close notify" shutdown alert. | |
2099 * It is acceptable according to the TLS standard. | |
2100 */ | |
2101 | |
2102 u->peer.connection->ssl->no_wait_shutdown = 1; | |
2103 | |
2104 (void) ngx_ssl_shutdown(u->peer.connection); | |
577 | 2105 } |
2106 #endif | |
884 | 2107 |
2108 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2109 "close http upstream connection: %d", | |
2110 u->peer.connection->fd); | |
2111 | |
479 | 2112 ngx_close_connection(u->peer.connection); |
2113 } | |
2114 | |
483 | 2115 u->peer.connection = NULL; |
2116 | |
563 | 2117 if (u->header_sent && (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE)) |
479 | 2118 { |
2119 rc = 0; | |
2120 } | |
2121 | |
581 | 2122 if (u->pipe && u->pipe->temp_file) { |
479 | 2123 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
2124 "http upstream temp fd: %d", | |
581 | 2125 u->pipe->temp_file->file.fd); |
479 | 2126 } |
2127 | |
2128 #if 0 | |
2129 if (u->cache) { | |
2130 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
483 | 2131 "http upstream cache fd: %d", |
479 | 2132 u->cache->ctx.file.fd); |
2133 } | |
2134 #endif | |
2135 | |
515 | 2136 if (rc == NGX_DECLINED) { |
2137 return; | |
2138 } | |
2139 | |
483 | 2140 r->connection->log->action = "sending to client"; |
2141 | |
629 | 2142 if (rc == 0 && r == r->main && !r->post_action) { |
581 | 2143 rc = ngx_http_send_special(r, NGX_HTTP_LAST); |
479 | 2144 } |
2145 | |
2146 ngx_http_finalize_request(r, rc); | |
2147 } | |
2148 | |
2149 | |
509 | 2150 static ngx_int_t |
2151 ngx_http_upstream_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
2152 ngx_uint_t offset) | |
577 | 2153 { |
509 | 2154 ngx_table_elt_t **ph; |
577 | 2155 |
509 | 2156 ph = (ngx_table_elt_t **) ((char *) &r->upstream->headers_in + offset); |
2157 | |
2158 if (*ph == NULL) { | |
2159 *ph = h; | |
2160 } | |
2161 | |
2162 return NGX_OK; | |
2163 } | |
2164 | |
2165 | |
2166 static ngx_int_t | |
2167 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
2168 ngx_table_elt_t *h, ngx_uint_t offset) | |
2169 { | |
2170 ngx_array_t *pa; | |
2171 ngx_table_elt_t **ph; | |
2172 | |
2173 pa = (ngx_array_t *) ((char *) &r->upstream->headers_in + offset); | |
2174 | |
2175 if (pa->elts == NULL) { | |
2176 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
2177 { | |
2178 return NGX_ERROR; | |
2179 } | |
2180 } | |
2181 | |
2182 ph = ngx_array_push(pa); | |
2183 if (ph == NULL) { | |
2184 return NGX_ERROR; | |
2185 } | |
2186 | |
2187 *ph = h; | |
2188 | |
2189 return NGX_OK; | |
2190 } | |
2191 | |
2192 | |
2193 static ngx_int_t | |
2194 ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
2195 ngx_uint_t offset) | |
2196 { | |
2197 return NGX_OK; | |
2198 } | |
2199 | |
2200 | |
2201 static ngx_int_t | |
527 | 2202 ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, ngx_table_elt_t *h, |
2203 ngx_uint_t offset) | |
577 | 2204 { |
527 | 2205 ngx_int_t n; |
2206 | |
2207 r->upstream->headers_in.x_accel_limit_rate = h; | |
2208 | |
2209 n = ngx_atoi(h->value.data, h->value.len); | |
2210 | |
2211 if (n != NGX_ERROR) { | |
2212 r->limit_rate = (size_t) n; | |
2213 } | |
2214 | |
2215 return NGX_OK; | |
2216 } | |
2217 | |
2218 | |
2219 static ngx_int_t | |
649 | 2220 ngx_http_upstream_process_buffering(ngx_http_request_t *r, ngx_table_elt_t *h, |
2221 ngx_uint_t offset) | |
2222 { | |
2223 u_char c0, c1, c2; | |
2224 | |
2225 if (r->upstream->conf->change_buffering) { | |
2226 | |
2227 if (h->value.len == 2) { | |
2228 c0 = ngx_tolower(h->value.data[0]); | |
2229 c1 = ngx_tolower(h->value.data[1]); | |
2230 | |
2231 if (c0 == 'n' && c1 == 'o') { | |
2232 r->upstream->buffering = 0; | |
2233 } | |
2234 | |
2235 } else if (h->value.len == 3) { | |
2236 c0 = ngx_tolower(h->value.data[0]); | |
2237 c1 = ngx_tolower(h->value.data[1]); | |
2238 c2 = ngx_tolower(h->value.data[2]); | |
2239 | |
2240 if (c0 == 'y' && c1 == 'e' && c2 == 's') { | |
2241 r->upstream->buffering = 1; | |
2242 } | |
2243 } | |
2244 } | |
2245 | |
2246 return NGX_OK; | |
2247 } | |
2248 | |
2249 | |
2250 static ngx_int_t | |
657 | 2251 ngx_http_upstream_process_charset(ngx_http_request_t *r, ngx_table_elt_t *h, |
2252 ngx_uint_t offset) | |
2253 { | |
2254 r->headers_out.override_charset = &h->value; | |
2255 | |
2256 return NGX_OK; | |
2257 } | |
2258 | |
2259 | |
2260 static ngx_int_t | |
509 | 2261 ngx_http_upstream_copy_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, |
2262 ngx_uint_t offset) | |
2263 { | |
573 | 2264 ngx_table_elt_t *ho, **ph; |
509 | 2265 |
2266 ho = ngx_list_push(&r->headers_out.headers); | |
2267 if (ho == NULL) { | |
2268 return NGX_ERROR; | |
2269 } | |
2270 | |
2271 *ho = *h; | |
2272 | |
573 | 2273 if (offset) { |
2274 ph = (ngx_table_elt_t **) ((char *) &r->headers_out + offset); | |
2275 *ph = ho; | |
2276 } | |
2277 | |
509 | 2278 return NGX_OK; |
2279 } | |
2280 | |
2281 | |
2282 static ngx_int_t | |
2283 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r, | |
2284 ngx_table_elt_t *h, ngx_uint_t offset) | |
2285 { | |
2286 ngx_array_t *pa; | |
2287 ngx_table_elt_t *ho, **ph; | |
2288 | |
2289 pa = (ngx_array_t *) ((char *) &r->headers_out + offset); | |
2290 | |
2291 if (pa->elts == NULL) { | |
2292 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
2293 { | |
2294 return NGX_ERROR; | |
2295 } | |
2296 } | |
2297 | |
2298 ph = ngx_array_push(pa); | |
2299 if (ph == NULL) { | |
2300 return NGX_ERROR; | |
2301 } | |
2302 | |
2303 ho = ngx_list_push(&r->headers_out.headers); | |
2304 if (ho == NULL) { | |
2305 return NGX_ERROR; | |
2306 } | |
2307 | |
2308 *ho = *h; | |
2309 *ph = ho; | |
2310 | |
2311 return NGX_OK; | |
2312 } | |
2313 | |
2314 | |
2315 static ngx_int_t | |
2316 ngx_http_upstream_copy_content_type(ngx_http_request_t *r, ngx_table_elt_t *h, | |
2317 ngx_uint_t offset) | |
2318 { | |
657 | 2319 u_char *p, *last; |
2320 | |
2321 r->headers_out.content_type_len = h->value.len; | |
509 | 2322 r->headers_out.content_type = h->value; |
2323 | |
657 | 2324 for (p = h->value.data; *p; p++) { |
2325 | |
2326 if (*p != ';') { | |
2327 continue; | |
2328 } | |
2329 | |
2330 last = p; | |
2331 | |
2332 while (*++p == ' ') { /* void */ } | |
2333 | |
1107
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
1098
diff
changeset
|
2334 if (ngx_strncasecmp(p, (u_char *) "charset=", 8) != 0) { |
657 | 2335 continue; |
2336 } | |
2337 | |
2338 p += 8; | |
2339 | |
2340 r->headers_out.content_type_len = last - h->value.data; | |
2341 | |
2342 r->headers_out.charset.len = h->value.data + h->value.len - p; | |
2343 r->headers_out.charset.data = p; | |
1143
c6c42497106c
fix segfault if upstream sends trailing ";" in "charset="
Igor Sysoev <igor@sysoev.ru>
parents:
1109
diff
changeset
|
2344 |
c6c42497106c
fix segfault if upstream sends trailing ";" in "charset="
Igor Sysoev <igor@sysoev.ru>
parents:
1109
diff
changeset
|
2345 return NGX_OK; |
657 | 2346 } |
2347 | |
509 | 2348 return NGX_OK; |
2349 } | |
2350 | |
2351 | |
2352 static ngx_int_t | |
2353 ngx_http_upstream_copy_content_length(ngx_http_request_t *r, ngx_table_elt_t *h, | |
2354 ngx_uint_t offset) | |
2355 { | |
2356 ngx_table_elt_t *ho; | |
2357 | |
2358 ho = ngx_list_push(&r->headers_out.headers); | |
2359 if (ho == NULL) { | |
2360 return NGX_ERROR; | |
2361 } | |
2362 | |
2363 *ho = *h; | |
2364 | |
2365 r->headers_out.content_length = ho; | |
2366 r->headers_out.content_length_n = ngx_atoof(h->value.data, h->value.len); | |
2367 | |
2368 return NGX_OK; | |
2369 } | |
2370 | |
2371 | |
2372 static ngx_int_t | |
2373 ngx_http_upstream_rewrite_location(ngx_http_request_t *r, ngx_table_elt_t *h, | |
2374 ngx_uint_t offset) | |
2375 { | |
2376 ngx_int_t rc; | |
2377 ngx_table_elt_t *ho; | |
2378 | |
2379 ho = ngx_list_push(&r->headers_out.headers); | |
2380 if (ho == NULL) { | |
2381 return NGX_ERROR; | |
2382 } | |
2383 | |
2384 *ho = *h; | |
2385 | |
2386 if (r->upstream->rewrite_redirect) { | |
2387 rc = r->upstream->rewrite_redirect(r, ho, 0); | |
2388 | |
529 | 2389 if (rc == NGX_DECLINED) { |
2390 return NGX_OK; | |
2391 } | |
2392 | |
509 | 2393 if (rc == NGX_OK) { |
2394 r->headers_out.location = ho; | |
2395 | |
2396 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2397 "rewritten location: \"%V\"", &ho->value); | |
2398 } | |
2399 | |
2400 return rc; | |
2401 } | |
2402 | |
2403 /* | |
2404 * we do not set r->headers_out.location here to avoid the handling | |
2405 * the local redirects without a host name by ngx_http_header_filter() | |
2406 */ | |
2407 | |
2408 return NGX_OK; | |
2409 } | |
2410 | |
2411 | |
2412 static ngx_int_t | |
2413 ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, ngx_table_elt_t *h, | |
2414 ngx_uint_t offset) | |
2415 { | |
2416 u_char *p; | |
2417 ngx_int_t rc; | |
2418 ngx_table_elt_t *ho; | |
2419 | |
2420 ho = ngx_list_push(&r->headers_out.headers); | |
2421 if (ho == NULL) { | |
2422 return NGX_ERROR; | |
2423 } | |
2424 | |
2425 *ho = *h; | |
2426 | |
2427 if (r->upstream->rewrite_redirect) { | |
2428 | |
2429 p = (u_char *) ngx_strstr(ho->value.data, "url="); | |
2430 | |
2431 if (p) { | |
2432 rc = r->upstream->rewrite_redirect(r, ho, p + 4 - ho->value.data); | |
2433 | |
2434 } else { | |
2435 return NGX_OK; | |
2436 } | |
2437 | |
529 | 2438 if (rc == NGX_DECLINED) { |
2439 return NGX_OK; | |
2440 } | |
2441 | |
509 | 2442 #if (NGX_DEBUG) |
2443 if (rc == NGX_OK) { | |
2444 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2445 "rewritten refresh: \"%V\"", &ho->value); | |
2446 } | |
2447 #endif | |
2448 | |
2449 return rc; | |
2450 } | |
2451 | |
2452 return NGX_OK; | |
2453 } | |
2454 | |
2455 | |
2456 #if (NGX_HTTP_GZIP) | |
2457 | |
2458 static ngx_int_t | |
2459 ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
2460 ngx_table_elt_t *h, ngx_uint_t offset) | |
2461 { | |
2462 ngx_table_elt_t *ho; | |
2463 | |
2464 ho = ngx_list_push(&r->headers_out.headers); | |
2465 if (ho == NULL) { | |
2466 return NGX_ERROR; | |
2467 } | |
2468 | |
2469 *ho = *h; | |
2470 | |
2471 r->headers_out.content_encoding = ho; | |
2472 | |
2473 return NGX_OK; | |
2474 } | |
2475 | |
2476 #endif | |
2477 | |
2478 | |
487 | 2479 static ngx_int_t |
573 | 2480 ngx_http_upstream_add_variables(ngx_conf_t *cf) |
479 | 2481 { |
880 | 2482 ngx_http_variable_t *var, *v; |
479 | 2483 |
573 | 2484 for (v = ngx_http_upstream_vars; v->name.len; v++) { |
2485 var = ngx_http_add_variable(cf, &v->name, v->flags); | |
2486 if (var == NULL) { | |
2487 return NGX_ERROR; | |
2488 } | |
2489 | |
637 | 2490 var->get_handler = v->get_handler; |
573 | 2491 var->data = v->data; |
2492 } | |
2493 | |
479 | 2494 return NGX_OK; |
2495 } | |
509 | 2496 |
2497 | |
573 | 2498 static ngx_int_t |
2499 ngx_http_upstream_status_variable(ngx_http_request_t *r, | |
2500 ngx_http_variable_value_t *v, uintptr_t data) | |
2501 { | |
2502 u_char *p; | |
2503 size_t len; | |
2504 ngx_uint_t i; | |
2505 ngx_http_upstream_t *u; | |
2506 ngx_http_upstream_state_t *state; | |
2507 | |
2508 v->valid = 1; | |
2509 v->no_cachable = 0; | |
2510 v->not_found = 0; | |
2511 | |
2512 u = r->upstream; | |
2513 | |
2514 if (u == NULL || u->states.nelts == 0) { | |
2515 v->not_found = 1; | |
2516 return NGX_OK; | |
2517 } | |
2518 | |
2519 len = u->states.nelts * (3 + 2); | |
2520 | |
2521 p = ngx_palloc(r->pool, len); | |
2522 if (p == NULL) { | |
2523 return NGX_ERROR; | |
2524 } | |
2525 | |
2526 v->data = p; | |
2527 | |
2528 i = 0; | |
2529 state = u->states.elts; | |
2530 | |
2531 for ( ;; ) { | |
2532 if (state[i].status == 0) { | |
2533 *p++ = '-'; | |
2534 | |
2535 } else { | |
2536 p = ngx_sprintf(p, "%ui", state[i].status); | |
2537 } | |
2538 | |
2539 if (++i == u->states.nelts) { | |
2540 break; | |
2541 } | |
2542 | |
2543 *p++ = ','; | |
2544 *p++ = ' '; | |
2545 } | |
2546 | |
2547 v->len = p - v->data; | |
2548 | |
2549 return NGX_OK; | |
2550 } | |
2551 | |
2552 | |
2553 static ngx_int_t | |
2554 ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
2555 ngx_http_variable_value_t *v, uintptr_t data) | |
2556 { | |
2557 u_char *p; | |
2558 size_t len; | |
2559 ngx_uint_t i; | |
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2560 ngx_msec_int_t ms; |
573 | 2561 ngx_http_upstream_t *u; |
2562 ngx_http_upstream_state_t *state; | |
2563 | |
2564 v->valid = 1; | |
2565 v->no_cachable = 0; | |
2566 v->not_found = 0; | |
2567 | |
2568 u = r->upstream; | |
2569 | |
2570 if (u == NULL || u->states.nelts == 0) { | |
2571 v->not_found = 1; | |
2572 return NGX_OK; | |
2573 } | |
2574 | |
2575 len = u->states.nelts * (NGX_TIME_T_LEN + 4 + 2); | |
2576 | |
2577 p = ngx_palloc(r->pool, len); | |
2578 if (p == NULL) { | |
2579 return NGX_ERROR; | |
2580 } | |
2581 | |
2582 v->data = p; | |
2583 | |
2584 i = 0; | |
2585 state = u->states.elts; | |
2586 | |
2587 for ( ;; ) { | |
2588 if (state[i].status == 0) { | |
2589 *p++ = '-'; | |
2590 | |
2591 } else { | |
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2592 ms = state[i].response_sec * 1000 + state[i].response_msec; |
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2593 ms = (ms >= 0) ? ms : 0; |
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2594 p = ngx_sprintf(p, "%d.%03d", ms / 1000, ms % 1000); |
573 | 2595 } |
2596 | |
2597 if (++i == u->states.nelts) { | |
2598 break; | |
2599 } | |
2600 | |
2601 *p++ = ','; | |
2602 *p++ = ' '; | |
2603 } | |
2604 | |
2605 v->len = p - v->data; | |
2606 | |
2607 return NGX_OK; | |
2608 } | |
2609 | |
2610 | |
651 | 2611 static char * |
2612 ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy) | |
2613 { | |
884 | 2614 char *rv; |
2615 void *mconf; | |
2616 ngx_str_t *value; | |
2617 ngx_url_t u; | |
2618 ngx_uint_t m; | |
2619 ngx_conf_t pcf; | |
2620 ngx_http_module_t *module; | |
2621 ngx_http_conf_ctx_t *ctx, *http_ctx; | |
2622 ngx_http_upstream_srv_conf_t *uscf; | |
2623 | |
2624 ngx_memzero(&u, sizeof(ngx_url_t)); | |
2625 | |
2626 value = cf->args->elts; | |
2627 u.host = value[1]; | |
2628 u.no_resolve = 1; | |
2629 | |
2630 uscf = ngx_http_upstream_add(cf, &u, NGX_HTTP_UPSTREAM_CREATE | |
2631 |NGX_HTTP_UPSTREAM_WEIGHT | |
2632 |NGX_HTTP_UPSTREAM_MAX_FAILS | |
2633 |NGX_HTTP_UPSTREAM_FAIL_TIMEOUT | |
2634 |NGX_HTTP_UPSTREAM_DOWN | |
2635 |NGX_HTTP_UPSTREAM_BACKUP); | |
2636 if (uscf == NULL) { | |
2637 return NGX_CONF_ERROR; | |
2638 } | |
2639 | |
651 | 2640 |
2641 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); | |
2642 if (ctx == NULL) { | |
2643 return NGX_CONF_ERROR; | |
2644 } | |
2645 | |
884 | 2646 http_ctx = cf->ctx; |
2647 ctx->main_conf = http_ctx->main_conf; | |
651 | 2648 |
2649 /* the upstream{}'s srv_conf */ | |
2650 | |
2651 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
2652 if (ctx->srv_conf == NULL) { | |
2653 return NGX_CONF_ERROR; | |
2654 } | |
2655 | |
2656 ctx->srv_conf[ngx_http_upstream_module.ctx_index] = uscf; | |
2657 | |
884 | 2658 uscf->srv_conf = ctx->srv_conf; |
2659 | |
651 | 2660 |
2661 /* the upstream{}'s loc_conf */ | |
2662 | |
2663 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
2664 if (ctx->loc_conf == NULL) { | |
2665 return NGX_CONF_ERROR; | |
2666 } | |
2667 | |
2668 for (m = 0; ngx_modules[m]; m++) { | |
2669 if (ngx_modules[m]->type != NGX_HTTP_MODULE) { | |
2670 continue; | |
2671 } | |
2672 | |
2673 module = ngx_modules[m]->ctx; | |
2674 | |
884 | 2675 if (module->create_srv_conf) { |
2676 mconf = module->create_srv_conf(cf); | |
2677 if (mconf == NULL) { | |
2678 return NGX_CONF_ERROR; | |
2679 } | |
2680 | |
2681 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf; | |
2682 } | |
2683 | |
651 | 2684 if (module->create_loc_conf) { |
2685 mconf = module->create_loc_conf(cf); | |
2686 if (mconf == NULL) { | |
2687 return NGX_CONF_ERROR; | |
2688 } | |
2689 | |
2690 ctx->loc_conf[ngx_modules[m]->ctx_index] = mconf; | |
2691 } | |
2692 } | |
2693 | |
2694 | |
2695 /* parse inside upstream{} */ | |
2696 | |
2697 pcf = *cf; | |
2698 cf->ctx = ctx; | |
2699 cf->cmd_type = NGX_HTTP_UPS_CONF; | |
2700 | |
2701 rv = ngx_conf_parse(cf, NULL); | |
2702 | |
2703 *cf = pcf; | |
2704 | |
2705 if (rv != NGX_CONF_OK) { | |
2706 return rv; | |
2707 } | |
2708 | |
2709 if (uscf->servers == NULL) { | |
2710 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
2711 "no servers are inside upstream"); | |
2712 return NGX_CONF_ERROR; | |
2713 } | |
2714 | |
2715 return rv; | |
2716 } | |
2717 | |
2718 | |
2719 static char * | |
2720 ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
2721 { | |
2722 ngx_http_upstream_srv_conf_t *uscf = conf; | |
2723 | |
884 | 2724 time_t fail_timeout; |
2725 ngx_str_t *value, s; | |
2726 ngx_url_t u; | |
2727 ngx_int_t weight, max_fails; | |
2728 ngx_uint_t i; | |
2729 ngx_http_upstream_server_t *us; | |
651 | 2730 |
2731 if (uscf->servers == NULL) { | |
884 | 2732 uscf->servers = ngx_array_create(cf->pool, 4, |
2733 sizeof(ngx_http_upstream_server_t)); | |
651 | 2734 if (uscf->servers == NULL) { |
2735 return NGX_CONF_ERROR; | |
2736 } | |
2737 } | |
2738 | |
884 | 2739 us = ngx_array_push(uscf->servers); |
2740 if (us == NULL) { | |
651 | 2741 return NGX_CONF_ERROR; |
2742 } | |
2743 | |
884 | 2744 ngx_memzero(us, sizeof(ngx_http_upstream_server_t)); |
2745 | |
651 | 2746 value = cf->args->elts; |
2747 | |
2748 ngx_memzero(&u, sizeof(ngx_url_t)); | |
2749 | |
2750 u.url = value[1]; | |
906 | 2751 u.default_port = 80; |
651 | 2752 |
2753 if (ngx_parse_url(cf, &u) != NGX_OK) { | |
2754 if (u.err) { | |
2755 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
2756 "%s in upstream \"%V\"", u.err, &u.url); | |
2757 } | |
2758 | |
2759 return NGX_CONF_ERROR; | |
2760 } | |
2761 | |
663 | 2762 weight = 1; |
884 | 2763 max_fails = 1; |
2764 fail_timeout = 10; | |
2765 | |
2766 for (i = 2; i < cf->args->nelts; i++) { | |
2767 | |
2768 if (ngx_strncmp(value[i].data, "weight=", 7) == 0) { | |
2769 | |
2770 if (!(uscf->flags & NGX_HTTP_UPSTREAM_WEIGHT)) { | |
2771 goto invalid; | |
2772 } | |
2773 | |
2774 weight = ngx_atoi(&value[i].data[7], value[i].len - 7); | |
663 | 2775 |
2776 if (weight == NGX_ERROR || weight == 0) { | |
2777 goto invalid; | |
2778 } | |
2779 | |
884 | 2780 continue; |
2781 } | |
2782 | |
2783 if (ngx_strncmp(value[i].data, "max_fails=", 10) == 0) { | |
2784 | |
2785 if (!(uscf->flags & NGX_HTTP_UPSTREAM_MAX_FAILS)) { | |
2786 goto invalid; | |
2787 } | |
2788 | |
2789 max_fails = ngx_atoi(&value[i].data[10], value[i].len - 10); | |
2790 | |
2791 if (max_fails == NGX_ERROR) { | |
2792 goto invalid; | |
2793 } | |
2794 | |
2795 continue; | |
663 | 2796 } |
884 | 2797 |
2798 if (ngx_strncmp(value[i].data, "fail_timeout=", 13) == 0) { | |
2799 | |
2800 if (!(uscf->flags & NGX_HTTP_UPSTREAM_FAIL_TIMEOUT)) { | |
2801 goto invalid; | |
2802 } | |
2803 | |
2804 s.len = value[i].len - 13; | |
2805 s.data = &value[i].data[13]; | |
2806 | |
2807 fail_timeout = ngx_parse_time(&s, 1); | |
2808 | |
2809 if (fail_timeout < 0) { | |
2810 goto invalid; | |
2811 } | |
2812 | |
2813 continue; | |
2814 } | |
2815 | |
2816 if (ngx_strncmp(value[i].data, "down", 4) == 0) { | |
2817 | |
2818 if (!(uscf->flags & NGX_HTTP_UPSTREAM_DOWN)) { | |
2819 goto invalid; | |
2820 } | |
2821 | |
2822 us->down = 1; | |
2823 | |
2824 continue; | |
2825 } | |
2826 | |
2827 goto invalid; | |
663 | 2828 } |
2829 | |
884 | 2830 us->addrs = u.addrs; |
2831 us->naddrs = u.naddrs; | |
2832 us->weight = weight; | |
2833 us->max_fails = max_fails; | |
2834 us->fail_timeout = fail_timeout; | |
651 | 2835 |
2836 return NGX_CONF_OK; | |
663 | 2837 |
2838 invalid: | |
2839 | |
884 | 2840 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
2841 "invalid parameter \"%V\"", &value[i]); | |
663 | 2842 |
2843 return NGX_CONF_ERROR; | |
651 | 2844 } |
2845 | |
2846 | |
2847 ngx_http_upstream_srv_conf_t * | |
884 | 2848 ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags) |
651 | 2849 { |
2850 ngx_uint_t i; | |
884 | 2851 ngx_http_upstream_server_t *us; |
651 | 2852 ngx_http_upstream_srv_conf_t *uscf, **uscfp; |
2853 ngx_http_upstream_main_conf_t *umcf; | |
2854 | |
884 | 2855 if (!(flags & NGX_HTTP_UPSTREAM_CREATE)) { |
2856 | |
651 | 2857 if (ngx_parse_url(cf, u) != NGX_OK) { |
2858 if (u->err) { | |
2859 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
2860 "%s in upstream \"%V\"", u->err, &u->url); | |
2861 } | |
2862 | |
2863 return NULL; | |
2864 } | |
2865 } | |
2866 | |
2867 umcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_upstream_module); | |
2868 | |
2869 uscfp = umcf->upstreams.elts; | |
2870 | |
2871 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
906 | 2872 |
2873 if (uscfp[i]->host.len != u->host.len | |
884 | 2874 || ngx_strncasecmp(uscfp[i]->host.data, u->host.data, u->host.len) |
2875 != 0) | |
2876 { | |
651 | 2877 continue; |
2878 } | |
2879 | |
884 | 2880 if ((flags & NGX_HTTP_UPSTREAM_CREATE) |
2881 && (uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE)) | |
651 | 2882 { |
884 | 2883 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
2884 "duplicate upstream \"%V\"", &u->host); | |
2885 return NULL; | |
651 | 2886 } |
884 | 2887 |
906 | 2888 if ((uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE) && u->port) { |
884 | 2889 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
906 | 2890 "upstream \"%V\" may not have port %d", |
2891 &u->host, u->port); | |
2892 return NULL; | |
2893 } | |
2894 | |
2895 if ((flags & NGX_HTTP_UPSTREAM_CREATE) && uscfp[i]->port) { | |
2896 ngx_log_error(NGX_LOG_WARN, cf->log, 0, | |
2897 "upstream \"%V\" may not have port %d in %s:%ui", | |
2898 &u->host, uscfp[i]->port, | |
2899 uscfp[i]->file_name.data, uscfp[i]->line); | |
2900 return NULL; | |
2901 } | |
2902 | |
2903 if (uscfp[i]->port != u->port) { | |
2904 continue; | |
884 | 2905 } |
2906 | |
2907 return uscfp[i]; | |
651 | 2908 } |
2909 | |
2910 uscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_srv_conf_t)); | |
2911 if (uscf == NULL) { | |
2912 return NULL; | |
2913 } | |
2914 | |
884 | 2915 uscf->flags = flags; |
651 | 2916 uscf->host = u->host; |
2917 uscf->file_name = cf->conf_file->file.name; | |
2918 uscf->line = cf->conf_file->line; | |
906 | 2919 uscf->port = u->port; |
2920 uscf->default_port = u->default_port; | |
884 | 2921 |
2922 if (u->naddrs == 1) { | |
2923 uscf->servers = ngx_array_create(cf->pool, 1, | |
2924 sizeof(ngx_http_upstream_server_t)); | |
2925 if (uscf->servers == NULL) { | |
2926 return NGX_CONF_ERROR; | |
2927 } | |
2928 | |
2929 us = ngx_array_push(uscf->servers); | |
2930 if (us == NULL) { | |
2931 return NGX_CONF_ERROR; | |
2932 } | |
2933 | |
2934 ngx_memzero(us, sizeof(ngx_http_upstream_server_t)); | |
2935 | |
2936 us->addrs = u->addrs; | |
2937 us->naddrs = u->naddrs; | |
2938 } | |
651 | 2939 |
2940 uscfp = ngx_array_push(&umcf->upstreams); | |
2941 if (uscfp == NULL) { | |
2942 return NULL; | |
2943 } | |
2944 | |
2945 *uscfp = uscf; | |
2946 | |
2947 return uscf; | |
2948 } | |
2949 | |
2950 | |
509 | 2951 static void * |
2952 ngx_http_upstream_create_main_conf(ngx_conf_t *cf) | |
2953 { | |
2954 ngx_http_upstream_main_conf_t *umcf; | |
2955 | |
2956 umcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_main_conf_t)); | |
2957 if (umcf == NULL) { | |
2958 return NULL; | |
2959 } | |
2960 | |
651 | 2961 if (ngx_array_init(&umcf->upstreams, cf->pool, 4, |
2962 sizeof(ngx_http_upstream_srv_conf_t *)) | |
2963 != NGX_OK) | |
2964 { | |
2965 return NGX_CONF_ERROR; | |
2966 } | |
2967 | |
509 | 2968 return umcf; |
2969 } | |
2970 | |
2971 | |
2972 static char * | |
651 | 2973 ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf) |
509 | 2974 { |
2975 ngx_http_upstream_main_conf_t *umcf = conf; | |
2976 | |
651 | 2977 ngx_uint_t i; |
2978 ngx_array_t headers_in; | |
2979 ngx_hash_key_t *hk; | |
2980 ngx_hash_init_t hash; | |
884 | 2981 ngx_http_upstream_init_pt init; |
651 | 2982 ngx_http_upstream_header_t *header; |
2983 ngx_http_upstream_srv_conf_t **uscfp; | |
2984 | |
2985 uscfp = umcf->upstreams.elts; | |
2986 | |
2987 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
884 | 2988 |
2989 init = uscfp[i]->peer.init_upstream ? uscfp[i]->peer.init_upstream: | |
2990 ngx_http_upstream_init_round_robin; | |
2991 | |
2992 if (init(cf, uscfp[i]) != NGX_OK) { | |
651 | 2993 return NGX_CONF_ERROR; |
2994 } | |
2995 } | |
649 | 2996 |
663 | 2997 |
884 | 2998 /* upstream_headers_in_hash */ |
2999 | |
649 | 3000 if (ngx_array_init(&headers_in, cf->temp_pool, 32, sizeof(ngx_hash_key_t)) |
3001 != NGX_OK) | |
509 | 3002 { |
3003 return NGX_CONF_ERROR; | |
3004 } | |
3005 | |
649 | 3006 for (header = ngx_http_upstream_headers_in; header->name.len; header++) { |
3007 hk = ngx_array_push(&headers_in); | |
3008 if (hk == NULL) { | |
3009 return NGX_CONF_ERROR; | |
3010 } | |
3011 | |
3012 hk->key = header->name; | |
3013 hk->key_hash = ngx_hash_key_lc(header->name.data, header->name.len); | |
3014 hk->value = header; | |
3015 } | |
3016 | |
3017 hash.hash = &umcf->headers_in_hash; | |
3018 hash.key = ngx_hash_key_lc; | |
3019 hash.max_size = 512; | |
751
bae59a740c40
align hash bucket size to cache line
Igor Sysoev <igor@sysoev.ru>
parents:
750
diff
changeset
|
3020 hash.bucket_size = ngx_align(64, ngx_cacheline_size); |
649 | 3021 hash.name = "upstream_headers_in_hash"; |
3022 hash.pool = cf->pool; | |
3023 hash.temp_pool = NULL; | |
3024 | |
3025 if (ngx_hash_init(&hash, headers_in.elts, headers_in.nelts) != NGX_OK) { | |
3026 return NGX_CONF_ERROR; | |
3027 } | |
509 | 3028 |
3029 return NGX_CONF_OK; | |
3030 } |