Mercurial > hg > nginx-quic
annotate src/http/ngx_http_upstream.c @ 1065:9039e845e532
fix segfault when a request body fits in r->header_in and
the body will be written to file
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Fri, 19 Jan 2007 16:13:15 +0000 |
parents | 7c84c877f2d7 |
children | aed9dfe2a4f2 |
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); | |
777
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
24 static void ngx_http_upstream_process_body_in_memory(ngx_event_t *rev); |
479 | 25 static void ngx_http_upstream_send_response(ngx_http_request_t *r, |
487 | 26 ngx_http_upstream_t *u); |
581 | 27 static void |
28 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r); | |
29 static void ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev); | |
30 static ngx_int_t ngx_http_upstream_non_buffered_filter_init(void *data); | |
31 static ngx_int_t ngx_http_upstream_non_buffered_filter(void *data, | |
32 ssize_t bytes); | |
509 | 33 static void ngx_http_upstream_process_downstream(ngx_http_request_t *r); |
479 | 34 static void ngx_http_upstream_process_body(ngx_event_t *ev); |
35 static void ngx_http_upstream_dummy_handler(ngx_event_t *wev); | |
36 static void ngx_http_upstream_next(ngx_http_request_t *r, | |
487 | 37 ngx_http_upstream_t *u, ngx_uint_t ft_type); |
569 | 38 static void ngx_http_upstream_cleanup(void *data); |
479 | 39 static void ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
487 | 40 ngx_http_upstream_t *u, ngx_int_t rc); |
479 | 41 |
509 | 42 static ngx_int_t ngx_http_upstream_process_header_line(ngx_http_request_t *r, |
43 ngx_table_elt_t *h, ngx_uint_t offset); | |
44 static ngx_int_t | |
45 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
46 ngx_table_elt_t *h, ngx_uint_t offset); | |
47 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, | |
48 ngx_table_elt_t *h, ngx_uint_t offset); | |
527 | 49 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, |
50 ngx_table_elt_t *h, ngx_uint_t offset); | |
649 | 51 static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r, |
509 | 52 ngx_table_elt_t *h, ngx_uint_t offset); |
657 | 53 static ngx_int_t ngx_http_upstream_process_charset(ngx_http_request_t *r, |
54 ngx_table_elt_t *h, ngx_uint_t offset); | |
649 | 55 static ngx_int_t ngx_http_upstream_copy_header_line(ngx_http_request_t *r, |
509 | 56 ngx_table_elt_t *h, ngx_uint_t offset); |
57 static ngx_int_t | |
58 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r, | |
59 ngx_table_elt_t *h, ngx_uint_t offset); | |
60 static ngx_int_t ngx_http_upstream_copy_content_type(ngx_http_request_t *r, | |
61 ngx_table_elt_t *h, ngx_uint_t offset); | |
62 static ngx_int_t ngx_http_upstream_copy_content_length(ngx_http_request_t *r, | |
63 ngx_table_elt_t *h, ngx_uint_t offset); | |
64 static ngx_int_t ngx_http_upstream_rewrite_location(ngx_http_request_t *r, | |
65 ngx_table_elt_t *h, ngx_uint_t offset); | |
66 static ngx_int_t ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, | |
67 ngx_table_elt_t *h, ngx_uint_t offset); | |
68 #if (NGX_HTTP_GZIP) | |
69 static ngx_int_t ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
70 ngx_table_elt_t *h, ngx_uint_t offset); | |
71 #endif | |
72 | |
573 | 73 static ngx_int_t ngx_http_upstream_add_variables(ngx_conf_t *cf); |
74 static ngx_int_t ngx_http_upstream_status_variable(ngx_http_request_t *r, | |
75 ngx_http_variable_value_t *v, uintptr_t data); | |
76 static ngx_int_t ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
77 ngx_http_variable_value_t *v, uintptr_t data); | |
78 | |
651 | 79 static char *ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy); |
80 static char *ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, | |
81 void *conf); | |
82 | |
509 | 83 static void *ngx_http_upstream_create_main_conf(ngx_conf_t *cf); |
651 | 84 static char *ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf); |
509 | 85 |
577 | 86 #if (NGX_HTTP_SSL) |
591 | 87 static void ngx_http_upstream_ssl_init_connection(ngx_http_request_t *, |
88 ngx_http_upstream_t *u, ngx_connection_t *c); | |
577 | 89 static void ngx_http_upstream_ssl_handshake(ngx_connection_t *c); |
90 #endif | |
91 | |
509 | 92 |
93 ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = { | |
94 | |
95 { ngx_string("Status"), | |
96 ngx_http_upstream_process_header_line, | |
97 offsetof(ngx_http_upstream_headers_in_t, status), | |
649 | 98 ngx_http_upstream_copy_header_line, 0, 0 }, |
509 | 99 |
100 { ngx_string("Content-Type"), | |
101 ngx_http_upstream_process_header_line, | |
102 offsetof(ngx_http_upstream_headers_in_t, content_type), | |
673 | 103 ngx_http_upstream_copy_content_type, 0, 1 }, |
509 | 104 |
105 { ngx_string("Content-Length"), | |
106 ngx_http_upstream_process_header_line, | |
107 offsetof(ngx_http_upstream_headers_in_t, content_length), | |
515 | 108 ngx_http_upstream_copy_content_length, 0, 0 }, |
509 | 109 |
110 { ngx_string("Date"), | |
111 ngx_http_upstream_process_header_line, | |
112 offsetof(ngx_http_upstream_headers_in_t, date), | |
649 | 113 ngx_http_upstream_copy_header_line, |
114 offsetof(ngx_http_headers_out_t, date), 0 }, | |
509 | 115 |
116 { ngx_string("Server"), | |
117 ngx_http_upstream_process_header_line, | |
118 offsetof(ngx_http_upstream_headers_in_t, server), | |
649 | 119 ngx_http_upstream_copy_header_line, |
120 offsetof(ngx_http_headers_out_t, server), 0 }, | |
509 | 121 |
529 | 122 { ngx_string("WWW-Authenticate"), |
123 ngx_http_upstream_process_header_line, | |
124 offsetof(ngx_http_upstream_headers_in_t, www_authenticate), | |
125 ngx_http_upstream_copy_header_line, 0, 0 }, | |
126 | |
509 | 127 { ngx_string("Location"), |
128 ngx_http_upstream_ignore_header_line, 0, | |
515 | 129 ngx_http_upstream_rewrite_location, 0, 0 }, |
509 | 130 |
131 { ngx_string("Refresh"), | |
132 ngx_http_upstream_ignore_header_line, 0, | |
515 | 133 ngx_http_upstream_rewrite_refresh, 0, 0 }, |
134 | |
135 { ngx_string("Set-Cookie"), | |
136 ngx_http_upstream_ignore_header_line, 0, | |
531 | 137 ngx_http_upstream_copy_header_line, 0, 1 }, |
138 | |
139 { ngx_string("Content-Disposition"), | |
140 ngx_http_upstream_ignore_header_line, 0, | |
141 ngx_http_upstream_copy_header_line, 0, 1 }, | |
509 | 142 |
143 { ngx_string("Cache-Control"), | |
144 ngx_http_upstream_process_multi_header_lines, | |
145 offsetof(ngx_http_upstream_headers_in_t, cache_control), | |
146 ngx_http_upstream_copy_multi_header_lines, | |
515 | 147 offsetof(ngx_http_headers_out_t, cache_control), 1 }, |
509 | 148 |
573 | 149 { ngx_string("Expires"), |
150 ngx_http_upstream_process_header_line, | |
151 offsetof(ngx_http_upstream_headers_in_t, expires), | |
152 ngx_http_upstream_copy_header_line, | |
153 offsetof(ngx_http_headers_out_t, expires), 1 }, | |
154 | |
577 | 155 { ngx_string("Accept-Ranges"), |
156 ngx_http_upstream_process_header_line, | |
157 offsetof(ngx_http_upstream_headers_in_t, accept_ranges), | |
158 ngx_http_upstream_copy_header_line, | |
159 offsetof(ngx_http_headers_out_t, accept_ranges), 1 }, | |
160 | |
509 | 161 { ngx_string("Connection"), |
162 ngx_http_upstream_ignore_header_line, 0, | |
515 | 163 ngx_http_upstream_ignore_header_line, 0, 0 }, |
509 | 164 |
641 | 165 { ngx_string("Keep-Alive"), |
166 ngx_http_upstream_ignore_header_line, 0, | |
167 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
168 | |
509 | 169 { ngx_string("X-Powered-By"), |
170 ngx_http_upstream_ignore_header_line, 0, | |
649 | 171 ngx_http_upstream_copy_header_line, 0, 0 }, |
509 | 172 |
173 { ngx_string("X-Accel-Expires"), | |
174 ngx_http_upstream_process_header_line, | |
175 offsetof(ngx_http_upstream_headers_in_t, x_accel_expires), | |
649 | 176 ngx_http_upstream_copy_header_line, 0, 0 }, |
515 | 177 |
178 { ngx_string("X-Accel-Redirect"), | |
179 ngx_http_upstream_process_header_line, | |
180 offsetof(ngx_http_upstream_headers_in_t, x_accel_redirect), | |
181 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
509 | 182 |
527 | 183 { ngx_string("X-Accel-Limit-Rate"), |
184 ngx_http_upstream_process_limit_rate, 0, | |
185 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
186 | |
649 | 187 { ngx_string("X-Accel-Buffering"), |
188 ngx_http_upstream_process_buffering, 0, | |
189 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
190 | |
657 | 191 { ngx_string("X-Accel-Charset"), |
192 ngx_http_upstream_process_charset, 0, | |
193 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
194 | |
509 | 195 #if (NGX_HTTP_GZIP) |
196 { ngx_string("Content-Encoding"), | |
197 ngx_http_upstream_process_header_line, | |
198 offsetof(ngx_http_upstream_headers_in_t, content_encoding), | |
515 | 199 ngx_http_upstream_copy_content_encoding, 0, 0 }, |
509 | 200 #endif |
201 | |
515 | 202 { ngx_null_string, NULL, 0, NULL, 0, 0 } |
509 | 203 }; |
479 | 204 |
205 | |
651 | 206 static ngx_command_t ngx_http_upstream_commands[] = { |
207 | |
208 { ngx_string("upstream"), | |
209 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1, | |
210 ngx_http_upstream, | |
211 0, | |
212 0, | |
213 NULL }, | |
214 | |
215 { ngx_string("server"), | |
884 | 216 NGX_HTTP_UPS_CONF|NGX_CONF_1MORE, |
651 | 217 ngx_http_upstream_server, |
218 NGX_HTTP_SRV_CONF_OFFSET, | |
219 0, | |
220 NULL }, | |
221 | |
222 ngx_null_command | |
223 }; | |
224 | |
225 | |
226 static ngx_http_module_t ngx_http_upstream_module_ctx = { | |
573 | 227 ngx_http_upstream_add_variables, /* preconfiguration */ |
509 | 228 NULL, /* postconfiguration */ |
229 | |
230 ngx_http_upstream_create_main_conf, /* create main configuration */ | |
651 | 231 ngx_http_upstream_init_main_conf, /* init main configuration */ |
479 | 232 |
233 NULL, /* create server configuration */ | |
234 NULL, /* merge server configuration */ | |
235 | |
236 NULL, /* create location configuration */ | |
237 NULL /* merge location configuration */ | |
238 }; | |
577 | 239 |
479 | 240 |
241 ngx_module_t ngx_http_upstream_module = { | |
509 | 242 NGX_MODULE_V1, |
479 | 243 &ngx_http_upstream_module_ctx, /* module context */ |
651 | 244 ngx_http_upstream_commands, /* module directives */ |
479 | 245 NGX_HTTP_MODULE, /* module type */ |
541 | 246 NULL, /* init master */ |
479 | 247 NULL, /* init module */ |
541 | 248 NULL, /* init process */ |
249 NULL, /* init thread */ | |
250 NULL, /* exit thread */ | |
251 NULL, /* exit process */ | |
252 NULL, /* exit master */ | |
253 NGX_MODULE_V1_PADDING | |
479 | 254 }; |
255 | |
256 | |
573 | 257 static ngx_http_variable_t ngx_http_upstream_vars[] = { |
258 | |
637 | 259 { ngx_string("upstream_status"), NULL, |
583 | 260 ngx_http_upstream_status_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
573 | 261 |
637 | 262 { ngx_string("upstream_response_time"), NULL, |
583 | 263 ngx_http_upstream_response_time_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
573 | 264 |
637 | 265 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
573 | 266 }; |
267 | |
268 | |
487 | 269 void |
270 ngx_http_upstream_init(ngx_http_request_t *r) | |
479 | 271 { |
509 | 272 ngx_connection_t *c; |
569 | 273 ngx_http_cleanup_t *cln; |
509 | 274 ngx_http_upstream_t *u; |
275 ngx_http_core_loc_conf_t *clcf; | |
479 | 276 |
277 c = r->connection; | |
278 | |
279 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
280 "http init upstream, client timer: %d", c->read->timer_set); | |
281 | |
282 if (c->read->timer_set) { | |
283 ngx_del_timer(c->read); | |
284 } | |
285 | |
629 | 286 u = r->upstream; |
287 | |
288 if (!r->post_action && !u->conf->ignore_client_abort) { | |
615 | 289 r->read_event_handler = ngx_http_upstream_rd_check_broken_connection; |
290 r->write_event_handler = ngx_http_upstream_wr_check_broken_connection; | |
291 } | |
577 | 292 |
479 | 293 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) { |
294 | |
295 if (!c->write->active) { | |
531 | 296 if (ngx_add_event(c->write, NGX_WRITE_EVENT, NGX_CLEAR_EVENT) |
297 == NGX_ERROR) | |
479 | 298 { |
299 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
300 return; | |
301 } | |
302 } | |
303 } | |
304 | |
537 | 305 if (r->request_body) { |
306 u->request_bufs = r->request_body->bufs; | |
307 } | |
509 | 308 |
884 | 309 if (u->conf->upstream->peer.init(r, u->conf->upstream) != NGX_OK) { |
310 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
311 return; | |
312 } | |
313 | |
537 | 314 if (u->create_request(r) != NGX_OK) { |
479 | 315 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); |
316 return; | |
317 } | |
318 | |
509 | 319 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
479 | 320 |
321 u->output.sendfile = r->connection->sendfile; | |
322 u->output.pool = r->pool; | |
323 u->output.bufs.num = 1; | |
509 | 324 u->output.bufs.size = clcf->client_body_buffer_size; |
479 | 325 u->output.output_filter = ngx_chain_writer; |
326 u->output.filter_ctx = &u->writer; | |
327 | |
328 u->writer.pool = r->pool; | |
329 | |
884 | 330 if (ngx_array_init(&u->states, r->pool, 1, |
569 | 331 sizeof(ngx_http_upstream_state_t)) |
332 != NGX_OK) | |
479 | 333 { |
334 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
335 return; | |
336 } | |
337 | |
593 | 338 cln = ngx_http_cleanup_add(r, 0); |
569 | 339 if (cln == NULL) { |
340 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
341 return; | |
342 } | |
343 | |
344 cln->handler = ngx_http_upstream_cleanup; | |
345 cln->data = r; | |
346 u->cleanup = &cln->handler; | |
347 | |
479 | 348 ngx_http_upstream_connect(r, u); |
349 } | |
350 | |
351 | |
487 | 352 static void |
509 | 353 ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r) |
354 { | |
355 ngx_http_upstream_check_broken_connection(r, r->connection->read); | |
356 } | |
357 | |
358 | |
359 static void | |
360 ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r) | |
361 { | |
362 ngx_http_upstream_check_broken_connection(r, r->connection->write); | |
363 } | |
364 | |
365 | |
366 static void | |
367 ngx_http_upstream_check_broken_connection(ngx_http_request_t *r, | |
368 ngx_event_t *ev) | |
479 | 369 { |
370 int n; | |
371 char buf[1]; | |
577 | 372 ngx_err_t err; |
479 | 373 ngx_connection_t *c; |
374 ngx_http_upstream_t *u; | |
375 | |
527 | 376 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, ev->log, 0, |
377 "http upstream check client, write event:%d, \"%V\"", | |
378 ev->write, &r->uri); | |
479 | 379 |
509 | 380 c = r->connection; |
483 | 381 u = r->upstream; |
382 | |
583 | 383 if (c->error) { |
527 | 384 ngx_http_upstream_finalize_request(r, u, |
385 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
386 return; | |
387 } | |
388 | |
483 | 389 if (u->peer.connection == NULL) { |
390 return; | |
391 } | |
392 | |
479 | 393 #if (NGX_HAVE_KQUEUE) |
394 | |
395 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { | |
396 | |
397 if (!ev->pending_eof) { | |
398 return; | |
399 } | |
400 | |
401 ev->eof = 1; | |
583 | 402 c->error = 1; |
479 | 403 |
404 if (ev->kq_errno) { | |
405 ev->error = 1; | |
406 } | |
407 | |
408 if (!u->cachable && u->peer.connection) { | |
409 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno, | |
527 | 410 "kevent() reported that client closed prematurely " |
411 "connection, so upstream connection is closed too"); | |
479 | 412 ngx_http_upstream_finalize_request(r, u, |
413 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
414 return; | |
415 } | |
416 | |
417 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno, | |
418 "kevent() reported that client closed " | |
419 "prematurely connection"); | |
420 | |
421 if (u->peer.connection == NULL) { | |
422 ngx_http_upstream_finalize_request(r, u, | |
423 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
424 return; | |
425 } | |
426 | |
427 return; | |
428 } | |
429 | |
430 #endif | |
431 | |
432 n = recv(c->fd, buf, 1, MSG_PEEK); | |
433 | |
434 err = ngx_socket_errno; | |
435 | |
436 /* | |
437 * we do not need to disable the write event because | |
438 * that event has NGX_USE_CLEAR_EVENT type | |
439 */ | |
440 | |
441 if (ev->write && (n >= 0 || err == NGX_EAGAIN)) { | |
442 return; | |
443 } | |
444 | |
445 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) { | |
446 if (ngx_del_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) { | |
447 ngx_http_upstream_finalize_request(r, u, | |
448 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
449 return; | |
450 } | |
451 } | |
452 | |
453 if (n > 0) { | |
454 return; | |
455 } | |
456 | |
457 if (n == -1) { | |
458 if (err == NGX_EAGAIN) { | |
459 return; | |
460 } | |
461 | |
462 ev->error = 1; | |
463 | |
483 | 464 } else { /* n == 0 */ |
479 | 465 err = 0; |
466 } | |
467 | |
529 | 468 ev->eof = 1; |
583 | 469 c->error = 1; |
529 | 470 |
479 | 471 if (!u->cachable && u->peer.connection) { |
472 ngx_log_error(NGX_LOG_INFO, ev->log, err, | |
473 "client closed prematurely connection, " | |
474 "so upstream connection is closed too"); | |
475 ngx_http_upstream_finalize_request(r, u, | |
476 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
477 return; | |
478 } | |
479 | |
480 ngx_log_error(NGX_LOG_INFO, ev->log, err, | |
481 "client closed prematurely connection"); | |
482 | |
483 if (u->peer.connection == NULL) { | |
484 ngx_http_upstream_finalize_request(r, u, | |
485 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
486 return; | |
487 } | |
488 } | |
489 | |
490 | |
487 | 491 static void |
492 ngx_http_upstream_connect(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
479 | 493 { |
591 | 494 ngx_int_t rc; |
665 | 495 ngx_time_t *tp; |
591 | 496 ngx_connection_t *c; |
479 | 497 |
483 | 498 r->connection->log->action = "connecting to upstream"; |
479 | 499 |
500 r->connection->single_connection = 0; | |
501 | |
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
502 if (u->state && u->state->response_sec) { |
665 | 503 tp = ngx_timeofday(); |
889
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504 u->state->response_sec = tp->sec - u->state->response_sec; |
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505 u->state->response_msec = tp->msec - u->state->response_msec; |
665 | 506 } |
507 | |
508 u->state = ngx_array_push(&u->states); | |
509 if (u->state == NULL) { | |
510 ngx_http_upstream_finalize_request(r, u, | |
511 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
512 return; | |
513 } | |
514 | |
515 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t)); | |
516 | |
517 tp = ngx_timeofday(); | |
889
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518 u->state->response_sec = tp->sec; |
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519 u->state->response_msec = tp->msec; |
665 | 520 |
479 | 521 rc = ngx_event_connect_peer(&u->peer); |
522 | |
523 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
524 "http upstream connect: %i", rc); | |
525 | |
526 if (rc == NGX_ERROR) { | |
527 ngx_http_upstream_finalize_request(r, u, | |
528 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
529 return; | |
530 } | |
531 | |
884 | 532 u->state->peer = u->peer.name; |
479 | 533 |
543 | 534 if (rc == NGX_BUSY) { |
535 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no live upstreams"); | |
536 } | |
537 | |
538 if (rc == NGX_BUSY || rc == NGX_DECLINED) { | |
479 | 539 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
540 return; | |
541 } | |
542 | |
577 | 543 /* rc == NGX_OK || rc == NGX_AGAIN */ |
544 | |
479 | 545 c = u->peer.connection; |
546 | |
547 c->data = r; | |
591 | 548 |
509 | 549 c->write->handler = ngx_http_upstream_send_request_handler; |
550 c->read->handler = ngx_http_upstream_process_header; | |
479 | 551 |
552 c->sendfile = r->connection->sendfile; | |
553 | |
554 c->pool = r->pool; | |
555 c->read->log = c->write->log = c->log = r->connection->log; | |
556 | |
557 /* init or reinit the ngx_output_chain() and ngx_chain_writer() contexts */ | |
558 | |
559 u->writer.out = NULL; | |
560 u->writer.last = &u->writer.out; | |
561 u->writer.connection = c; | |
562 u->writer.limit = 0; | |
563 | |
564 if (u->request_sent) { | |
509 | 565 if (ngx_http_upstream_reinit(r, u) != NGX_OK) { |
566 ngx_http_upstream_finalize_request(r, u, | |
567 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
568 return; | |
569 } | |
479 | 570 } |
571 | |
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572 if (r->request_body |
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573 && r->request_body->buf |
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574 && r->request_body->temp_file |
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575 && r == r->main) |
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576 { |
573 | 577 /* |
578 * the r->request_body->buf can be reused for one request only, | |
579 * the subrequests should allocate their own temporay bufs | |
580 */ | |
581 | |
582 u->output.free = ngx_alloc_chain_link(r->pool); | |
583 if (u->output.free == NULL) { | |
584 ngx_http_upstream_finalize_request(r, u, | |
585 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
586 return; | |
479 | 587 } |
573 | 588 |
589 u->output.free->buf = r->request_body->buf; | |
590 u->output.free->next = NULL; | |
591 u->output.allocated = 1; | |
592 | |
593 r->request_body->buf->pos = r->request_body->buf->start; | |
594 r->request_body->buf->last = r->request_body->buf->start; | |
595 r->request_body->buf->tag = u->output.tag; | |
479 | 596 } |
597 | |
598 u->request_sent = 0; | |
599 | |
600 if (rc == NGX_AGAIN) { | |
601 ngx_add_timer(c->write, u->conf->connect_timeout); | |
602 return; | |
603 } | |
604 | |
577 | 605 #if (NGX_HTTP_SSL) |
606 | |
591 | 607 if (u->conf->ssl && c->ssl == NULL) { |
608 ngx_http_upstream_ssl_init_connection(r, u, c); | |
577 | 609 return; |
610 } | |
611 | |
612 #endif | |
613 | |
479 | 614 ngx_http_upstream_send_request(r, u); |
615 } | |
616 | |
617 | |
577 | 618 #if (NGX_HTTP_SSL) |
619 | |
620 static void | |
591 | 621 ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r, |
622 ngx_http_upstream_t *u, ngx_connection_t *c) | |
623 { | |
884 | 624 ngx_int_t rc; |
591 | 625 |
626 if (ngx_ssl_create_connection(u->conf->ssl, c, | |
627 NGX_SSL_BUFFER|NGX_SSL_CLIENT) | |
628 == NGX_ERROR) | |
629 { | |
630 ngx_http_upstream_finalize_request(r, u, | |
631 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
632 return; | |
633 } | |
634 | |
635 c->sendfile = 0; | |
619 | 636 u->output.sendfile = 0; |
591 | 637 |
884 | 638 if (ngx_ssl_set_session(c, u->peer.ssl_session) != NGX_OK) { |
591 | 639 ngx_http_upstream_finalize_request(r, u, |
640 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
641 return; | |
642 } | |
643 | |
641 | 644 r->connection->log->action = "SSL handshaking to upstream"; |
645 | |
591 | 646 rc = ngx_ssl_handshake(c); |
647 | |
648 if (rc == NGX_AGAIN) { | |
649 c->ssl->handler = ngx_http_upstream_ssl_handshake; | |
650 return; | |
651 } | |
652 | |
653 ngx_http_upstream_ssl_handshake(c); | |
654 } | |
655 | |
656 | |
657 static void | |
577 | 658 ngx_http_upstream_ssl_handshake(ngx_connection_t *c) |
659 { | |
660 ngx_http_request_t *r; | |
661 ngx_http_upstream_t *u; | |
662 | |
663 r = c->data; | |
664 u = r->upstream; | |
665 | |
666 if (c->ssl->handshaked) { | |
667 | |
884 | 668 u->peer.save_session(&u->peer, u->peer.data); |
669 | |
577 | 670 c->write->handler = ngx_http_upstream_send_request_handler; |
671 c->read->handler = ngx_http_upstream_process_header; | |
672 | |
673 ngx_http_upstream_send_request(r, u); | |
674 | |
675 return; | |
676 } | |
677 | |
678 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
679 | |
680 } | |
681 | |
682 #endif | |
683 | |
684 | |
509 | 685 static ngx_int_t |
487 | 686 ngx_http_upstream_reinit(ngx_http_request_t *r, ngx_http_upstream_t *u) |
479 | 687 { |
688 ngx_chain_t *cl; | |
689 | |
509 | 690 if (u->reinit_request(r) != NGX_OK) { |
691 return NGX_ERROR; | |
692 } | |
693 | |
694 ngx_memzero(&r->upstream->headers_in, | |
695 sizeof(ngx_http_upstream_headers_in_t)); | |
696 | |
697 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, | |
591 | 698 sizeof(ngx_table_elt_t)) |
699 != NGX_OK) | |
509 | 700 { |
701 return NGX_ERROR; | |
479 | 702 } |
703 | |
704 /* reinit the request chain */ | |
577 | 705 |
509 | 706 for (cl = u->request_bufs; cl; cl = cl->next) { |
479 | 707 cl->buf->pos = cl->buf->start; |
708 cl->buf->file_pos = 0; | |
709 } | |
710 | |
509 | 711 /* reinit the subrequest's ngx_output_chain() context */ |
712 | |
573 | 713 if (r->request_body && r->request_body->temp_file |
597 | 714 && r != r->main && u->output.buf) |
573 | 715 { |
716 u->output.free = ngx_alloc_chain_link(r->pool); | |
717 if (u->output.free == NULL) { | |
718 return NGX_ERROR; | |
509 | 719 } |
573 | 720 |
721 u->output.free->buf = u->output.buf; | |
722 u->output.free->next = NULL; | |
723 | |
724 u->output.buf->pos = u->output.buf->start; | |
725 u->output.buf->last = u->output.buf->start; | |
509 | 726 } |
479 | 727 |
728 u->output.buf = NULL; | |
729 u->output.in = NULL; | |
730 u->output.busy = NULL; | |
577 | 731 |
581 | 732 /* reinit u->buffer */ |
577 | 733 |
479 | 734 #if 0 |
735 if (u->cache) { | |
581 | 736 u->buffer.pos = u->buffer.start + u->cache->ctx.header_size; |
737 u->buffer.last = u->buffer.pos; | |
479 | 738 |
739 } else { | |
581 | 740 u->buffer.pos = u->buffer.start; |
741 u->buffer.last = u->buffer.start; | |
479 | 742 } |
743 #else | |
509 | 744 |
581 | 745 u->buffer.pos = u->buffer.start; |
746 u->buffer.last = u->buffer.start; | |
509 | 747 |
479 | 748 #endif |
749 | |
509 | 750 return NGX_OK; |
479 | 751 } |
752 | |
753 | |
487 | 754 static void |
755 ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
479 | 756 { |
671 | 757 int rc, err; |
758 socklen_t len; | |
483 | 759 ngx_connection_t *c; |
577 | 760 |
479 | 761 c = u->peer.connection; |
762 | |
763 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
764 "http upstream send request"); | |
765 | |
671 | 766 if (!u->request_sent) { |
767 | |
479 | 768 #if (NGX_HAVE_KQUEUE) |
769 | |
671 | 770 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
771 if (c->write->pending_eof) { | |
772 (void) ngx_connection_error(c, c->write->kq_errno, | |
537 | 773 "kevent() reported that connect() failed"); |
671 | 774 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
775 return; | |
776 } | |
777 | |
778 } else | |
779 #endif | |
780 { | |
781 err = 0; | |
782 len = sizeof(int); | |
783 | |
784 /* | |
785 * BSDs and Linux return 0 and set a pending error in err | |
786 * Solaris returns -1 and sets errno | |
787 */ | |
788 | |
789 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len) | |
790 == -1) | |
791 { | |
792 err = ngx_errno; | |
793 } | |
794 | |
795 if (err) { | |
796 (void) ngx_connection_error(c, err, "connect() failed"); | |
797 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
798 return; | |
799 } | |
800 } | |
479 | 801 } |
802 | |
483 | 803 c->log->action = "sending request to upstream"; |
479 | 804 |
509 | 805 rc = ngx_output_chain(&u->output, u->request_sent ? NULL : u->request_bufs); |
479 | 806 |
807 u->request_sent = 1; | |
808 | |
809 if (rc == NGX_ERROR) { | |
810 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
811 return; | |
812 } | |
813 | |
814 if (c->write->timer_set) { | |
815 ngx_del_timer(c->write); | |
816 } | |
817 | |
818 if (rc == NGX_AGAIN) { | |
819 ngx_add_timer(c->write, u->conf->send_timeout); | |
820 | |
821 if (ngx_handle_write_event(c->write, u->conf->send_lowat) == NGX_ERROR) | |
822 { | |
823 ngx_http_upstream_finalize_request(r, u, | |
824 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
825 return; | |
826 } | |
827 | |
828 return; | |
829 } | |
830 | |
831 /* rc == NGX_OK */ | |
832 | |
833 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) { | |
834 if (ngx_tcp_push(c->fd) == NGX_ERROR) { | |
835 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno, | |
836 ngx_tcp_push_n " failed"); | |
837 ngx_http_upstream_finalize_request(r, u, | |
838 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
577 | 839 return; |
479 | 840 } |
841 | |
842 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET; | |
843 } | |
577 | 844 |
479 | 845 ngx_add_timer(c->read, u->conf->read_timeout); |
846 | |
847 #if 1 | |
848 if (c->read->ready) { | |
577 | 849 |
479 | 850 /* post aio operation */ |
851 | |
852 /* | |
853 * TODO comment | |
854 * although we can post aio operation just in the end | |
855 * of ngx_http_upstream_connect() CHECK IT !!! | |
856 * it's better to do here because we postpone header buffer allocation | |
857 */ | |
858 | |
859 ngx_http_upstream_process_header(c->read); | |
860 return; | |
861 } | |
862 #endif | |
863 | |
509 | 864 c->write->handler = ngx_http_upstream_dummy_handler; |
479 | 865 |
509 | 866 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) { |
479 | 867 ngx_http_upstream_finalize_request(r, u, |
868 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
869 return; | |
870 } | |
871 } | |
872 | |
873 | |
487 | 874 static void |
875 ngx_http_upstream_send_request_handler(ngx_event_t *wev) | |
479 | 876 { |
877 ngx_connection_t *c; | |
878 ngx_http_request_t *r; | |
879 ngx_http_upstream_t *u; | |
880 | |
881 c = wev->data; | |
882 r = c->data; | |
883 u = r->upstream; | |
884 | |
885 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
886 "http upstream send request handler"); | |
887 | |
888 if (wev->timedout) { | |
889 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
890 return; | |
891 } | |
892 | |
591 | 893 #if (NGX_HTTP_SSL) |
894 | |
895 if (u->conf->ssl && c->ssl == NULL) { | |
896 ngx_http_upstream_ssl_init_connection(r, u, c); | |
897 return; | |
898 } | |
899 | |
900 #endif | |
901 | |
651 | 902 if (u->header_sent) { |
903 wev->handler = ngx_http_upstream_dummy_handler; | |
904 | |
905 (void) ngx_handle_write_event(wev, 0); | |
906 | |
907 return; | |
908 } | |
909 | |
479 | 910 ngx_http_upstream_send_request(r, u); |
911 } | |
912 | |
913 | |
487 | 914 static void |
915 ngx_http_upstream_process_header(ngx_event_t *rev) | |
479 | 916 { |
515 | 917 ssize_t n; |
918 ngx_int_t rc; | |
573 | 919 ngx_str_t *uri, args; |
649 | 920 ngx_uint_t i, flags; |
515 | 921 ngx_list_part_t *part; |
922 ngx_table_elt_t *h; | |
923 ngx_connection_t *c; | |
924 ngx_http_request_t *r; | |
925 ngx_http_upstream_t *u; | |
926 ngx_http_err_page_t *err_page; | |
927 ngx_http_core_loc_conf_t *clcf; | |
928 ngx_http_upstream_header_t *hh; | |
929 ngx_http_upstream_main_conf_t *umcf; | |
479 | 930 |
931 c = rev->data; | |
932 r = c->data; | |
933 u = r->upstream; | |
934 | |
935 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, | |
483 | 936 "http upstream process header"); |
479 | 937 |
483 | 938 c->log->action = "reading response header from upstream"; |
479 | 939 |
940 if (rev->timedout) { | |
941 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
942 return; | |
943 } | |
577 | 944 |
581 | 945 if (u->buffer.start == NULL) { |
946 u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size); | |
947 if (u->buffer.start == NULL) { | |
479 | 948 ngx_http_upstream_finalize_request(r, u, |
949 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
950 return; | |
951 } | |
952 | |
581 | 953 u->buffer.pos = u->buffer.start; |
954 u->buffer.last = u->buffer.start; | |
955 u->buffer.end = u->buffer.start + u->conf->buffer_size; | |
956 u->buffer.temporary = 1; | |
957 | |
958 u->buffer.tag = u->output.tag; | |
479 | 959 |
509 | 960 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, |
581 | 961 sizeof(ngx_table_elt_t)) |
962 != NGX_OK) | |
509 | 963 { |
964 ngx_http_upstream_finalize_request(r, u, | |
965 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
966 return; | |
967 } | |
968 | |
479 | 969 #if 0 |
970 if (u->cache) { | |
581 | 971 u->buffer.pos += u->cache->ctx.header_size; |
972 u->buffer.last = u->buffer.pos; | |
479 | 973 } |
974 #endif | |
975 } | |
976 | |
581 | 977 n = u->peer.connection->recv(u->peer.connection, u->buffer.last, |
884 | 978 u->buffer.end - u->buffer.last); |
479 | 979 |
980 if (n == NGX_AGAIN) { | |
981 #if 0 | |
982 ngx_add_timer(rev, u->read_timeout); | |
983 #endif | |
984 | |
985 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
986 ngx_http_upstream_finalize_request(r, u, | |
987 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
988 return; | |
989 } | |
990 | |
991 return; | |
992 } | |
993 | |
994 if (n == 0) { | |
995 ngx_log_error(NGX_LOG_ERR, rev->log, 0, | |
996 "upstream prematurely closed connection"); | |
997 } | |
998 | |
999 if (n == NGX_ERROR || n == 0) { | |
1000 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
1001 return; | |
1002 } | |
1003 | |
581 | 1004 u->buffer.last += n; |
479 | 1005 |
1006 #if 0 | |
1007 u->valid_header_in = 0; | |
1008 | |
1009 u->peer.cached = 0; | |
1010 #endif | |
1011 | |
1012 rc = u->process_header(r); | |
1013 | |
1014 if (rc == NGX_AGAIN) { | |
1015 #if 0 | |
1016 ngx_add_timer(rev, u->read_timeout); | |
1017 #endif | |
1018 | |
581 | 1019 if (u->buffer.pos == u->buffer.end) { |
479 | 1020 ngx_log_error(NGX_LOG_ERR, rev->log, 0, |
1021 "upstream sent too big header"); | |
1022 | |
1023 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
1024 return; | |
1025 } | |
1026 | |
1027 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
1028 ngx_http_upstream_finalize_request(r, u, | |
1029 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
1030 return; | |
1031 } | |
1032 | |
1033 return; | |
1034 } | |
1035 | |
1036 if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) { | |
1037 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
1038 return; | |
1039 } | |
1040 | |
1041 if (rc == NGX_ERROR || rc == NGX_HTTP_INTERNAL_SERVER_ERROR) { | |
1042 ngx_http_upstream_finalize_request(r, u, | |
1043 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
1044 return; | |
1045 } | |
1046 | |
1047 /* rc == NGX_OK */ | |
1048 | |
777
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1049 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
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1050 && r->subrequest_in_memory) |
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1051 { |
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1052 u->buffer.last = u->buffer.pos; |
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1053 } |
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|
1054 |
529 | 1055 if (u->headers_in.status_n == NGX_HTTP_INTERNAL_SERVER_ERROR) { |
509 | 1056 |
1057 if (u->peer.tries > 1 | |
1058 && (u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
1059 { | |
1060 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_500); | |
1061 return; | |
1062 } | |
1063 | |
1064 #if (NGX_HTTP_CACHE) | |
1065 | |
1066 if (u->peer.tries == 0 | |
1067 && u->stale | |
1068 && (u->conf->use_stale & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
1069 { | |
1070 ngx_http_upstream_finalize_request(r, u, | |
529 | 1071 ngx_http_send_cached_response(r)); |
509 | 1072 return; |
1073 } | |
1074 | |
1075 #endif | |
1076 } | |
1077 | |
597 | 1078 if (u->headers_in.status_n == NGX_HTTP_NOT_FOUND) { |
1079 | |
1080 if (u->peer.tries > 1 | |
1081 && u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_404) | |
1082 { | |
1083 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_404); | |
1084 return; | |
1085 } | |
1086 | |
675 | 1087 if (u->conf->intercept_404) { |
1088 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_NOT_FOUND); | |
597 | 1089 return; |
1090 } | |
509 | 1091 } |
1092 | |
1093 | |
529 | 1094 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
675 | 1095 && u->conf->intercept_errors) |
487 | 1096 { |
1097 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
1098 | |
1099 if (clcf->error_pages) { | |
1100 | |
1101 err_page = clcf->error_pages->elts; | |
1102 for (i = 0; i < clcf->error_pages->nelts; i++) { | |
529 | 1103 if (err_page[i].status == (ngx_int_t) u->headers_in.status_n) { |
1104 | |
1105 if (u->headers_in.status_n == NGX_HTTP_UNAUTHORIZED) { | |
1106 | |
1107 r->headers_out.www_authenticate = | |
1108 ngx_list_push(&r->headers_out.headers); | |
1109 | |
1110 if (r->headers_out.www_authenticate == NULL) { | |
1111 ngx_http_upstream_finalize_request(r, u, | |
1112 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
1113 return; | |
1114 } | |
1115 | |
577 | 1116 *r->headers_out.www_authenticate = |
529 | 1117 *u->headers_in.www_authenticate; |
1118 } | |
1119 | |
487 | 1120 ngx_http_upstream_finalize_request(r, u, |
529 | 1121 u->headers_in.status_n); |
487 | 1122 return; |
1123 } | |
1124 } | |
1125 } | |
1126 } | |
1127 | |
681 | 1128 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); |
1129 | |
515 | 1130 if (r->upstream->headers_in.x_accel_redirect) { |
757
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756
diff
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|
1131 |
515 | 1132 ngx_http_upstream_finalize_request(r, u, NGX_DECLINED); |
1133 | |
1134 part = &r->upstream->headers_in.headers.part; | |
1135 h = part->elts; | |
1136 | |
1137 for (i = 0; /* void */; i++) { | |
1138 | |
1139 if (i >= part->nelts) { | |
1140 if (part->next == NULL) { | |
1141 break; | |
1142 } | |
577 | 1143 |
515 | 1144 part = part->next; |
1145 h = part->elts; | |
1146 i = 0; | |
1147 } | |
1148 | |
649 | 1149 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, |
1150 h[i].lowcase_key, h[i].key.len); | |
1151 | |
1152 if (hh && hh->redirect) { | |
1153 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
787
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parents:
777
diff
changeset
|
1154 ngx_http_finalize_request(r, |
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parents:
756
diff
changeset
|
1155 NGX_HTTP_INTERNAL_SERVER_ERROR); |
515 | 1156 return; |
1157 } | |
1158 } | |
1159 } | |
1160 | |
573 | 1161 uri = &r->upstream->headers_in.x_accel_redirect->value; |
1162 args.len = 0; | |
1163 args.data = NULL; | |
1164 flags = 0; | |
1165 | |
1166 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) { | |
757
a138c4e6031f
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parents:
756
diff
changeset
|
1167 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND); |
573 | 1168 return; |
1169 } | |
1170 | |
1171 if (flags & NGX_HTTP_ZERO_IN_URI) { | |
1172 r->zero_in_uri = 1; | |
1173 } | |
1174 | |
653 | 1175 if (r->method != NGX_HTTP_HEAD) { |
1176 r->method = NGX_HTTP_GET; | |
1177 } | |
1178 | |
573 | 1179 ngx_http_internal_redirect(r, uri, &args); |
515 | 1180 return; |
1181 } | |
1182 | |
509 | 1183 part = &r->upstream->headers_in.headers.part; |
1184 h = part->elts; | |
1185 | |
1186 for (i = 0; /* void */; i++) { | |
479 | 1187 |
509 | 1188 if (i >= part->nelts) { |
1189 if (part->next == NULL) { | |
1190 break; | |
1191 } | |
577 | 1192 |
509 | 1193 part = part->next; |
1194 h = part->elts; | |
1195 i = 0; | |
1196 } | |
1197 | |
649 | 1198 if (ngx_hash_find(&u->conf->hide_headers_hash, h[i].hash, |
1199 h[i].lowcase_key, h[i].key.len)) | |
509 | 1200 { |
649 | 1201 continue; |
1202 } | |
1203 | |
1204 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, | |
1205 h[i].lowcase_key, h[i].key.len); | |
1206 | |
1207 if (hh) { | |
1208 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
509 | 1209 ngx_http_upstream_finalize_request(r, u, |
1210 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
1211 return; | |
1212 } | |
1213 | |
1214 continue; | |
1215 } | |
1216 | |
1217 if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) { | |
1218 ngx_http_upstream_finalize_request(r, u, | |
1219 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
1220 return; | |
1221 } | |
1222 } | |
1223 | |
649 | 1224 if (r->headers_out.server && r->headers_out.server->value.data == NULL) { |
1225 r->headers_out.server->hash = 0; | |
1226 } | |
1227 | |
1228 if (r->headers_out.date && r->headers_out.date->value.data == NULL) { | |
1229 r->headers_out.date->hash = 0; | |
1230 } | |
1231 | |
529 | 1232 r->headers_out.status = u->headers_in.status_n; |
1233 r->headers_out.status_line = u->headers_in.status_line; | |
1234 | |
581 | 1235 if (r->headers_out.content_length_n != -1) { |
1236 u->length = (size_t) r->headers_out.content_length_n; | |
1237 | |
1238 } else { | |
1239 u->length = NGX_MAX_SIZE_T_VALUE; | |
1240 } | |
1241 | |
777
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1242 if (!r->subrequest_in_memory) { |
4ab852b691f5
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parents:
757
diff
changeset
|
1243 ngx_http_upstream_send_response(r, u); |
4ab852b691f5
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parents:
757
diff
changeset
|
1244 return; |
4ab852b691f5
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parents:
757
diff
changeset
|
1245 } |
4ab852b691f5
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parents:
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diff
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|
1246 |
4ab852b691f5
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parents:
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diff
changeset
|
1247 /* subrequest content in memory */ |
4ab852b691f5
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diff
changeset
|
1248 |
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1249 if (u->input_filter == NULL) { |
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1250 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; |
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1251 u->input_filter = ngx_http_upstream_non_buffered_filter; |
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1252 u->input_filter_ctx = r; |
4ab852b691f5
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parents:
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diff
changeset
|
1253 } |
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parents:
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diff
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|
1254 |
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parents:
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diff
changeset
|
1255 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { |
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1256 ngx_http_upstream_finalize_request(r, u, |
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1257 NGX_HTTP_INTERNAL_SERVER_ERROR); |
4ab852b691f5
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parents:
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diff
changeset
|
1258 return; |
4ab852b691f5
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parents:
757
diff
changeset
|
1259 } |
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1260 |
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1261 if (u->buffer.last - u->buffer.pos >= (ssize_t) u->length) { |
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1262 if (u->input_filter(u->input_filter_ctx, 0) == NGX_ERROR) { |
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1263 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1264 return; |
4ab852b691f5
<!--#include virtual=... set=... -->
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parents:
757
diff
changeset
|
1265 } |
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1266 |
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1267 ngx_http_upstream_finalize_request(r, u, 0); |
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1268 return; |
4ab852b691f5
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parents:
757
diff
changeset
|
1269 } |
4ab852b691f5
<!--#include virtual=... set=... -->
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parents:
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diff
changeset
|
1270 |
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1271 rev->handler = ngx_http_upstream_process_body_in_memory; |
4ab852b691f5
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parents:
757
diff
changeset
|
1272 |
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1273 ngx_http_upstream_process_body_in_memory(rev); |
4ab852b691f5
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parents:
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diff
changeset
|
1274 } |
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<!--#include virtual=... set=... -->
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parents:
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diff
changeset
|
1275 |
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parents:
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diff
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|
1276 |
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<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1277 static void |
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1278 ngx_http_upstream_process_body_in_memory(ngx_event_t *rev) |
4ab852b691f5
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parents:
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diff
changeset
|
1279 { |
4ab852b691f5
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parents:
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diff
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|
1280 size_t size; |
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parents:
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diff
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|
1281 ssize_t n; |
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parents:
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diff
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|
1282 ngx_buf_t *b; |
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diff
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|
1283 ngx_connection_t *c; |
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diff
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|
1284 ngx_http_request_t *r; |
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diff
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|
1285 ngx_http_upstream_t *u; |
4ab852b691f5
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diff
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|
1286 |
4ab852b691f5
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diff
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|
1287 c = rev->data; |
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diff
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|
1288 r = c->data; |
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diff
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|
1289 u = r->upstream; |
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diff
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|
1290 |
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diff
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|
1291 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
4ab852b691f5
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diff
changeset
|
1292 "http upstream process body on memory"); |
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|
1293 |
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|
1294 if (rev->timedout) { |
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diff
changeset
|
1295 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
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diff
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|
1296 ngx_http_upstream_finalize_request(r, u, NGX_ETIMEDOUT); |
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parents:
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diff
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|
1297 return; |
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diff
changeset
|
1298 } |
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|
1299 |
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|
1300 b = &u->buffer; |
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|
1301 |
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|
1302 for ( ;; ) { |
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|
1303 |
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|
1304 size = b->end - b->last; |
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|
1305 |
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|
1306 if (size == 0) { |
4ab852b691f5
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diff
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|
1307 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
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|
1308 "upstream buffer is too small to read repsonse"); |
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|
1309 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
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|
1310 return; |
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changeset
|
1311 } |
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|
1312 |
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|
1313 n = c->recv(c, b->last, size); |
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|
1314 |
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|
1315 if (n == NGX_AGAIN) { |
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diff
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|
1316 break; |
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|
1317 } |
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|
1318 |
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diff
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|
1319 if (n == 0 || n == NGX_ERROR) { |
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1320 ngx_http_upstream_finalize_request(r, u, n); |
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1321 return; |
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1322 } |
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1323 |
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1324 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { |
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1325 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
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1326 return; |
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1327 } |
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1328 |
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1329 if (!rev->ready) { |
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1330 break; |
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1331 } |
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1332 } |
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1333 |
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1334 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { |
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1335 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
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1336 return; |
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1337 } |
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1338 |
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1339 if (rev->active) { |
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1340 ngx_add_timer(rev, u->conf->read_timeout); |
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1341 |
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1342 } else if (rev->timer_set) { |
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1343 ngx_del_timer(rev); |
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1344 } |
681 | 1345 } |
1346 | |
1347 | |
1348 static void | |
1349 ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
1350 { | |
1351 int tcp_nodelay; | |
1352 ssize_t size; | |
1353 ngx_int_t rc; | |
1354 ngx_event_pipe_t *p; | |
1355 ngx_connection_t *c; | |
1356 ngx_pool_cleanup_t *cl; | |
1357 ngx_pool_cleanup_file_t *clf; | |
1358 ngx_http_core_loc_conf_t *clcf; | |
1359 | |
509 | 1360 rc = ngx_http_send_header(r); |
479 | 1361 |
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1362 if (rc == NGX_ERROR || rc > NGX_OK || r->post_action || r->header_only) { |
485 | 1363 ngx_http_upstream_finalize_request(r, u, rc); |
479 | 1364 return; |
1365 } | |
1366 | |
1367 u->header_sent = 1; | |
1368 | |
573 | 1369 if (r->request_body && r->request_body->temp_file) { |
563 | 1370 for (cl = r->pool->cleanup; cl; cl = cl->next) { |
1371 if (cl->handler == ngx_pool_cleanup_file) { | |
1372 clf = cl->data; | |
1373 | |
1374 if (clf->fd == r->request_body->temp_file->file.fd) { | |
1375 cl->handler(clf); | |
1376 cl->handler = NULL; | |
659 | 1377 r->request_body->temp_file->file.fd = NGX_INVALID_FILE; |
563 | 1378 break; |
1379 } | |
1380 } | |
1381 } | |
1382 } | |
1383 | |
583 | 1384 c = r->connection; |
1385 | |
581 | 1386 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
1387 | |
649 | 1388 if (!u->buffering) { |
581 | 1389 |
1390 if (u->input_filter == NULL) { | |
1391 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; | |
1392 u->input_filter = ngx_http_upstream_non_buffered_filter; | |
1393 u->input_filter_ctx = r; | |
1394 } | |
1395 | |
1396 u->peer.connection->read->handler = | |
1397 ngx_http_upstream_process_non_buffered_body; | |
1398 r->write_event_handler = | |
1399 ngx_http_upstream_process_non_buffered_downstream; | |
1400 | |
1401 r->limit_rate = 0; | |
1402 | |
1403 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { | |
1404 ngx_http_upstream_finalize_request(r, u, 0); | |
1405 return; | |
1406 } | |
1407 | |
583 | 1408 if (clcf->tcp_nodelay && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) { |
1409 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay"); | |
1410 | |
1411 tcp_nodelay = 1; | |
1412 | |
1413 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY, | |
1414 (const void *) &tcp_nodelay, sizeof(int)) == -1) | |
1415 { | |
1416 ngx_connection_error(c, ngx_socket_errno, | |
1417 "setsockopt(TCP_NODELAY) failed"); | |
1418 ngx_http_upstream_finalize_request(r, u, 0); | |
1419 return; | |
1420 } | |
1421 | |
1422 c->tcp_nodelay = NGX_TCP_NODELAY_SET; | |
1423 } | |
1424 | |
581 | 1425 size = u->buffer.last - u->buffer.pos; |
1426 | |
1427 if (size) { | |
1428 u->buffer.last = u->buffer.pos; | |
1429 | |
1430 if (u->input_filter(u->input_filter_ctx, size) == NGX_ERROR) { | |
1431 ngx_http_upstream_finalize_request(r, u, 0); | |
1432 return; | |
1433 } | |
1434 | |
583 | 1435 ngx_http_upstream_process_non_buffered_body(c->write); |
581 | 1436 |
1437 } else { | |
1438 u->buffer.pos = u->buffer.start; | |
1439 u->buffer.last = u->buffer.start; | |
1440 | |
1441 if (ngx_http_send_special(r, NGX_HTTP_FLUSH) == NGX_ERROR) { | |
1442 ngx_http_upstream_finalize_request(r, u, 0); | |
1443 return; | |
1444 } | |
1445 } | |
1446 | |
1447 return; | |
1448 } | |
1449 | |
479 | 1450 /* TODO: preallocate event_pipe bufs, look "Content-Length" */ |
1451 | |
1452 #if 0 | |
1453 | |
1454 if (u->cache && u->cache->ctx.file.fd != NGX_INVALID_FILE) { | |
1455 if (ngx_close_file(u->cache->ctx.file.fd) == NGX_FILE_ERROR) { | |
583 | 1456 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
479 | 1457 ngx_close_file_n " \"%s\" failed", |
1458 u->cache->ctx.file.name.data); | |
1459 } | |
1460 } | |
1461 | |
1462 if (u->cachable) { | |
581 | 1463 header = (ngx_http_cache_header_t *) u->buffer->start; |
479 | 1464 |
1465 header->expires = u->cache->ctx.expires; | |
1466 header->last_modified = u->cache->ctx.last_modified; | |
1467 header->date = u->cache->ctx.date; | |
1468 header->length = r->headers_out.content_length_n; | |
1469 u->cache->ctx.length = r->headers_out.content_length_n; | |
1470 | |
1471 header->key_len = u->cache->ctx.key0.len; | |
1472 ngx_memcpy(&header->key, u->cache->ctx.key0.data, header->key_len); | |
1473 header->key[header->key_len] = LF; | |
1474 } | |
1475 | |
1476 #endif | |
1477 | |
581 | 1478 p = u->pipe; |
479 | 1479 |
1480 p->output_filter = (ngx_event_pipe_output_filter_pt) ngx_http_output_filter; | |
1481 p->output_ctx = r; | |
1482 p->tag = u->output.tag; | |
577 | 1483 p->bufs = u->conf->bufs; |
479 | 1484 p->busy_size = u->conf->busy_buffers_size; |
1485 p->upstream = u->peer.connection; | |
583 | 1486 p->downstream = c; |
479 | 1487 p->pool = r->pool; |
583 | 1488 p->log = c->log; |
577 | 1489 |
479 | 1490 p->cachable = u->cachable; |
1491 | |
501 | 1492 p->temp_file = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t)); |
1493 if (p->temp_file == NULL) { | |
479 | 1494 ngx_http_upstream_finalize_request(r, u, 0); |
1495 return; | |
1496 } | |
1497 | |
1498 p->temp_file->file.fd = NGX_INVALID_FILE; | |
583 | 1499 p->temp_file->file.log = c->log; |
479 | 1500 p->temp_file->path = u->conf->temp_path; |
1501 p->temp_file->pool = r->pool; | |
577 | 1502 |
479 | 1503 if (u->cachable) { |
1504 p->temp_file->persistent = 1; | |
1505 } else { | |
667 | 1506 p->temp_file->log_level = NGX_LOG_WARN; |
479 | 1507 p->temp_file->warn = "an upstream response is buffered " |
1508 "to a temporary file"; | |
1509 } | |
1510 | |
1511 p->max_temp_file_size = u->conf->max_temp_file_size; | |
1512 p->temp_file_write_size = u->conf->temp_file_write_size; | |
1513 | |
501 | 1514 p->preread_bufs = ngx_alloc_chain_link(r->pool); |
1515 if (p->preread_bufs == NULL) { | |
479 | 1516 ngx_http_upstream_finalize_request(r, u, 0); |
1517 return; | |
1518 } | |
581 | 1519 p->preread_bufs->buf = &u->buffer; |
479 | 1520 p->preread_bufs->next = NULL; |
581 | 1521 u->buffer.recycled = 1; |
1522 | |
1523 p->preread_size = u->buffer.last - u->buffer.pos; | |
479 | 1524 |
1525 if (u->cachable) { | |
1526 p->buf_to_file = ngx_calloc_buf(r->pool); | |
1527 if (p->buf_to_file == NULL) { | |
1528 ngx_http_upstream_finalize_request(r, u, 0); | |
1529 return; | |
1530 } | |
581 | 1531 p->buf_to_file->pos = u->buffer.start; |
1532 p->buf_to_file->last = u->buffer.pos; | |
479 | 1533 p->buf_to_file->temporary = 1; |
1534 } | |
1535 | |
1536 if (ngx_event_flags & NGX_USE_AIO_EVENT) { | |
1537 /* the posted aio operation may currupt a shadow buffer */ | |
1538 p->single_buf = 1; | |
1539 } | |
1540 | |
1541 /* TODO: p->free_bufs = 0 if use ngx_create_chain_of_bufs() */ | |
1542 p->free_bufs = 1; | |
1543 | |
1544 /* | |
581 | 1545 * event_pipe would do u->buffer.last += p->preread_size |
479 | 1546 * as though these bytes were read |
1547 */ | |
581 | 1548 u->buffer.last = u->buffer.pos; |
479 | 1549 |
1550 if (u->conf->cyclic_temp_file) { | |
1551 | |
1552 /* | |
1553 * we need to disable the use of sendfile() if we use cyclic temp file | |
1554 * because the writing a new data may interfere with sendfile() | |
1555 * that uses the same kernel file pages (at least on FreeBSD) | |
1556 */ | |
1557 | |
1558 p->cyclic_temp_file = 1; | |
583 | 1559 c->sendfile = 0; |
479 | 1560 |
1561 } else { | |
1562 p->cyclic_temp_file = 0; | |
1563 } | |
1564 | |
1565 p->read_timeout = u->conf->read_timeout; | |
1566 p->send_timeout = clcf->send_timeout; | |
1567 p->send_lowat = clcf->send_lowat; | |
1568 | |
509 | 1569 u->peer.connection->read->handler = ngx_http_upstream_process_body; |
1570 r->write_event_handler = ngx_http_upstream_process_downstream; | |
479 | 1571 |
1572 ngx_http_upstream_process_body(u->peer.connection->read); | |
1573 } | |
1574 | |
1575 | |
487 | 1576 static void |
581 | 1577 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r) |
1578 { | |
1579 ngx_http_upstream_process_non_buffered_body(r->connection->write); | |
1580 } | |
1581 | |
1582 | |
1583 static void | |
1584 ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev) | |
1585 { | |
1586 size_t size; | |
1587 ssize_t n; | |
1588 ngx_buf_t *b; | |
583 | 1589 ngx_int_t rc; |
581 | 1590 ngx_uint_t do_write; |
884 | 1591 ngx_connection_t *c, *downstream, *upstream; |
581 | 1592 ngx_http_request_t *r; |
1593 ngx_http_upstream_t *u; | |
1594 ngx_http_core_loc_conf_t *clcf; | |
1595 | |
1596 c = ev->data; | |
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1597 r = c->data; |
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1598 u = r->upstream; |
581 | 1599 |
1600 if (ev->write) { | |
1601 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
1602 "http upstream process non buffered downstream"); | |
1603 c->log->action = "sending to client"; | |
1604 | |
1605 } else { | |
1606 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
1607 "http upstream process non buffered upstream"); | |
1608 c->log->action = "reading upstream"; | |
1609 } | |
1610 | |
1611 if (ev->timedout) { | |
1612 if (ev->write) { | |
1613 c->timedout = 1; | |
611 | 1614 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
1615 | |
581 | 1616 } else { |
611 | 1617 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
581 | 1618 } |
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1619 |
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1620 ngx_http_upstream_finalize_request(r, u, 0); |
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1621 return; |
581 | 1622 } |
1623 | |
884 | 1624 downstream = r->connection; |
1625 upstream = u->peer.connection; | |
581 | 1626 |
1627 b = &u->buffer; | |
1628 | |
1629 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
1630 | |
657 | 1631 do_write = ev->write || u->length == 0; |
581 | 1632 |
1633 for ( ;; ) { | |
1634 | |
1635 if (do_write) { | |
1636 | |
1637 if (u->out_bufs || u->busy_bufs) { | |
583 | 1638 rc = ngx_http_output_filter(r, u->out_bufs); |
1639 | |
884 | 1640 if (downstream->destroyed) { |
583 | 1641 return; |
1642 } | |
1643 | |
1644 if (rc == NGX_ERROR) { | |
581 | 1645 ngx_http_upstream_finalize_request(r, u, 0); |
1646 return; | |
1647 } | |
1648 | |
1649 ngx_chain_update_chains(&u->free_bufs, &u->busy_bufs, | |
1650 &u->out_bufs, u->output.tag); | |
1651 } | |
1652 | |
1653 if (u->busy_bufs == NULL) { | |
1654 | |
1655 if (u->length == 0 | |
884 | 1656 || upstream->read->eof |
1657 || upstream->read->error) | |
581 | 1658 { |
1659 ngx_http_upstream_finalize_request(r, u, 0); | |
1660 return; | |
1661 } | |
1662 | |
1663 b->pos = b->start; | |
1664 b->last = b->start; | |
1665 } | |
1666 } | |
1667 | |
1668 size = b->end - b->last; | |
1669 | |
1670 if (size > u->length) { | |
1671 size = u->length; | |
1672 } | |
1673 | |
884 | 1674 if (size && upstream->read->ready) { |
1675 | |
1676 n = upstream->recv(upstream, b->last, size); | |
581 | 1677 |
1678 if (n == NGX_AGAIN) { | |
1679 break; | |
1680 } | |
1681 | |
1682 if (n > 0) { | |
1683 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { | |
1684 ngx_http_upstream_finalize_request(r, u, 0); | |
1685 return; | |
1686 } | |
1687 } | |
1688 | |
1689 do_write = 1; | |
1690 | |
1691 continue; | |
1692 } | |
1693 | |
1694 break; | |
1695 } | |
1696 | |
884 | 1697 if (downstream->data == r) { |
1698 if (ngx_handle_write_event(downstream->write, clcf->send_lowat) | |
583 | 1699 == NGX_ERROR) |
1700 { | |
1701 ngx_http_upstream_finalize_request(r, u, 0); | |
1702 return; | |
1703 } | |
581 | 1704 } |
1705 | |
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1706 if (downstream->write->active && !downstream->write->ready) { |
884 | 1707 ngx_add_timer(downstream->write, clcf->send_timeout); |
1708 | |
1709 } else if (downstream->write->timer_set) { | |
1710 ngx_del_timer(downstream->write); | |
581 | 1711 } |
1712 | |
884 | 1713 if (ngx_handle_read_event(upstream->read, 0) == NGX_ERROR) { |
581 | 1714 ngx_http_upstream_finalize_request(r, u, 0); |
1715 return; | |
1716 } | |
1717 | |
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1718 if (upstream->read->active && !upstream->read->ready) { |
884 | 1719 ngx_add_timer(upstream->read, u->conf->read_timeout); |
1720 | |
1721 } else if (upstream->read->timer_set) { | |
1722 ngx_del_timer(upstream->read); | |
581 | 1723 } |
1724 } | |
1725 | |
1726 | |
1727 static ngx_int_t | |
1728 ngx_http_upstream_non_buffered_filter_init(void *data) | |
1729 { | |
1730 return NGX_OK; | |
1731 } | |
1732 | |
1733 | |
1734 static ngx_int_t | |
1735 ngx_http_upstream_non_buffered_filter(void *data, ssize_t bytes) | |
1736 { | |
1737 ngx_http_request_t *r = data; | |
1738 | |
1739 ngx_buf_t *b; | |
1740 ngx_chain_t *cl, **ll; | |
1741 ngx_http_upstream_t *u; | |
1742 | |
1743 u = r->upstream; | |
1744 | |
1745 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
1746 ll = &cl->next; | |
1747 } | |
1748 | |
1749 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
1750 if (cl == NULL) { | |
1751 return NGX_ERROR; | |
1752 } | |
1753 | |
1754 *ll = cl; | |
1755 | |
1756 cl->buf->flush = 1; | |
1757 cl->buf->memory = 1; | |
1758 | |
1759 b = &u->buffer; | |
1760 | |
1761 cl->buf->pos = b->last; | |
1762 b->last += bytes; | |
1763 cl->buf->last = b->last; | |
1764 | |
1765 if (u->length == NGX_MAX_SIZE_T_VALUE) { | |
1766 return NGX_OK; | |
1767 } | |
1768 | |
1769 u->length -= bytes; | |
1770 | |
1771 return NGX_OK; | |
1772 } | |
1773 | |
1774 | |
1775 static void | |
509 | 1776 ngx_http_upstream_process_downstream(ngx_http_request_t *r) |
1777 { | |
1778 ngx_http_upstream_process_body(r->connection->write); | |
1779 } | |
1780 | |
1781 | |
1782 static void | |
487 | 1783 ngx_http_upstream_process_body(ngx_event_t *ev) |
479 | 1784 { |
509 | 1785 ngx_event_pipe_t *p; |
583 | 1786 ngx_connection_t *c, *downstream; |
479 | 1787 ngx_http_request_t *r; |
1788 ngx_http_upstream_t *u; | |
1789 | |
1790 c = ev->data; | |
1791 r = c->data; | |
1792 u = r->upstream; | |
583 | 1793 downstream = r->connection; |
479 | 1794 |
1795 if (ev->write) { | |
483 | 1796 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
1797 "http upstream process downstream"); | |
1798 c->log->action = "sending to client"; | |
577 | 1799 |
479 | 1800 } else { |
483 | 1801 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
1802 "http upstream process upstream"); | |
1803 c->log->action = "reading upstream"; | |
479 | 1804 } |
577 | 1805 |
581 | 1806 p = u->pipe; |
479 | 1807 |
1808 if (ev->timedout) { | |
1809 if (ev->write) { | |
527 | 1810 if (ev->delayed) { |
1811 | |
1812 ev->timedout = 0; | |
1813 ev->delayed = 0; | |
1814 | |
1815 if (!ev->ready) { | |
1816 ngx_add_timer(ev, p->send_timeout); | |
1817 | |
1818 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) | |
1819 { | |
1820 ngx_http_upstream_finalize_request(r, u, 0); | |
1821 return; | |
1822 } | |
1823 | |
1824 return; | |
1825 } | |
1826 | |
1827 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { | |
583 | 1828 |
1829 if (downstream->destroyed) { | |
1830 return; | |
1831 } | |
1832 | |
527 | 1833 ngx_http_upstream_finalize_request(r, u, 0); |
1834 return; | |
1835 } | |
1836 | |
1837 } else { | |
1838 p->downstream_error = 1; | |
577 | 1839 c->timedout = 1; |
611 | 1840 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
527 | 1841 } |
479 | 1842 |
1843 } else { | |
577 | 1844 p->upstream_error = 1; |
611 | 1845 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
479 | 1846 } |
1847 | |
1848 } else { | |
527 | 1849 if (ev->write && ev->delayed) { |
1850 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
1851 "http downstream delayed"); | |
1852 | |
1853 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) { | |
1854 return; | |
1855 } | |
1856 | |
1857 return; | |
1858 } | |
1859 | |
479 | 1860 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { |
583 | 1861 |
1862 if (downstream->destroyed) { | |
1863 return; | |
1864 } | |
1865 | |
479 | 1866 ngx_http_upstream_finalize_request(r, u, 0); |
1867 return; | |
1868 } | |
1869 } | |
577 | 1870 |
479 | 1871 if (u->peer.connection) { |
1872 | |
1873 #if (NGX_HTTP_FILE_CACHE) | |
1874 | |
1875 if (p->upstream_done && u->cachable) { | |
1876 if (ngx_http_cache_update(r) == NGX_ERROR) { | |
1877 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
1878 ngx_http_upstream_finalize_request(r, u, 0); | |
1879 return; | |
1880 } | |
1881 | |
1882 } else if (p->upstream_eof && u->cachable) { | |
1883 | |
1884 /* TODO: check length & update cache */ | |
1885 | |
1886 if (ngx_http_cache_update(r) == NGX_ERROR) { | |
1887 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
1888 ngx_http_upstream_finalize_request(r, u, 0); | |
1889 return; | |
1890 } | |
1891 } | |
1892 | |
1893 #endif | |
1894 | |
1895 if (p->upstream_done || p->upstream_eof || p->upstream_error) { | |
483 | 1896 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, |
1897 "http upstream exit: %p", p->out); | |
479 | 1898 #if 0 |
1899 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
1900 #endif | |
1901 ngx_http_upstream_finalize_request(r, u, 0); | |
1902 return; | |
1903 } | |
1904 } | |
1905 | |
1906 if (p->downstream_error) { | |
483 | 1907 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
1908 "http upstream downstream error"); | |
479 | 1909 |
1910 if (!u->cachable && u->peer.connection) { | |
1911 ngx_http_upstream_finalize_request(r, u, 0); | |
1912 } | |
1913 } | |
1914 } | |
1915 | |
1916 | |
487 | 1917 static void |
1918 ngx_http_upstream_dummy_handler(ngx_event_t *wev) | |
479 | 1919 { |
1920 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
1921 "http upstream dummy handler"); | |
1922 } | |
1923 | |
1924 | |
487 | 1925 static void |
1926 ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u, | |
1927 ngx_uint_t ft_type) | |
479 | 1928 { |
884 | 1929 ngx_uint_t status, state; |
479 | 1930 |
1931 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
884 | 1932 "http next upstream, %xi", ft_type); |
479 | 1933 |
1934 #if 0 | |
1935 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
1936 #endif | |
1937 | |
525 | 1938 if (ft_type == NGX_HTTP_UPSTREAM_FT_HTTP_404) { |
884 | 1939 state = NGX_PEER_NEXT; |
525 | 1940 } else { |
884 | 1941 state = NGX_PEER_FAILED; |
479 | 1942 } |
525 | 1943 |
884 | 1944 u->peer.free(&u->peer, u->peer.data, state); |
525 | 1945 |
479 | 1946 if (ft_type == NGX_HTTP_UPSTREAM_FT_TIMEOUT) { |
1947 ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_ETIMEDOUT, | |
1948 "upstream timed out"); | |
1949 } | |
577 | 1950 |
479 | 1951 if (u->peer.cached && ft_type == NGX_HTTP_UPSTREAM_FT_ERROR) { |
1952 status = 0; | |
1953 | |
1954 } else { | |
1955 switch(ft_type) { | |
1956 | |
1957 case NGX_HTTP_UPSTREAM_FT_TIMEOUT: | |
1958 status = NGX_HTTP_GATEWAY_TIME_OUT; | |
1959 break; | |
1960 | |
1961 case NGX_HTTP_UPSTREAM_FT_HTTP_500: | |
1962 status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
1963 break; | |
1964 | |
1965 case NGX_HTTP_UPSTREAM_FT_HTTP_404: | |
1966 status = NGX_HTTP_NOT_FOUND; | |
1967 break; | |
1968 | |
1969 /* | |
1970 * NGX_HTTP_UPSTREAM_FT_BUSY_LOCK and NGX_HTTP_UPSTREAM_FT_MAX_WAITING | |
1971 * never reach here | |
1972 */ | |
1973 | |
1974 default: | |
1975 status = NGX_HTTP_BAD_GATEWAY; | |
1976 } | |
1977 } | |
1978 | |
583 | 1979 if (r->connection->error) { |
479 | 1980 ngx_http_upstream_finalize_request(r, u, |
1981 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
1982 return; | |
1983 } | |
1984 | |
1985 if (status) { | |
1986 u->state->status = status; | |
1987 | |
525 | 1988 if (u->peer.tries == 0 || !(u->conf->next_upstream & ft_type)) { |
479 | 1989 |
1990 #if (NGX_HTTP_CACHE) | |
1991 | |
1992 if (u->stale && (u->conf->use_stale & ft_type)) { | |
1993 ngx_http_upstream_finalize_request(r, u, | |
525 | 1994 ngx_http_send_cached_response(r)); |
479 | 1995 return; |
1996 } | |
1997 | |
1998 #endif | |
1999 | |
2000 ngx_http_upstream_finalize_request(r, u, status); | |
2001 return; | |
2002 } | |
2003 } | |
2004 | |
2005 if (u->peer.connection) { | |
2006 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2007 "close http upstream connection: %d", | |
2008 u->peer.connection->fd); | |
577 | 2009 #if (NGX_HTTP_SSL) |
884 | 2010 |
577 | 2011 if (u->peer.connection->ssl) { |
884 | 2012 u->peer.connection->ssl->no_wait_shutdown = 1; |
2013 u->peer.connection->ssl->no_send_shutdown = 1; | |
2014 | |
2015 (void) ngx_ssl_shutdown(u->peer.connection); | |
577 | 2016 } |
2017 #endif | |
884 | 2018 |
479 | 2019 ngx_close_connection(u->peer.connection); |
2020 } | |
2021 | |
2022 #if 0 | |
2023 if (u->conf->busy_lock && !u->busy_locked) { | |
2024 ngx_http_upstream_busy_lock(p); | |
2025 return; | |
2026 } | |
2027 #endif | |
2028 | |
2029 ngx_http_upstream_connect(r, u); | |
2030 } | |
2031 | |
2032 | |
487 | 2033 static void |
569 | 2034 ngx_http_upstream_cleanup(void *data) |
2035 { | |
2036 ngx_http_request_t *r = data; | |
2037 | |
2038 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2039 "cleanup http upstream request: \"%V\"", &r->uri); | |
2040 | |
2041 ngx_http_upstream_finalize_request(r, r->upstream, NGX_DONE); | |
2042 } | |
2043 | |
2044 | |
2045 static void | |
487 | 2046 ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
2047 ngx_http_upstream_t *u, ngx_int_t rc) | |
479 | 2048 { |
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2049 ngx_time_t *tp; |
563 | 2050 |
483 | 2051 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
2052 "finalize http upstream request: %i", rc); | |
479 | 2053 |
569 | 2054 *u->cleanup = NULL; |
2055 | |
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2056 if (u->state->response_sec) { |
563 | 2057 tp = ngx_timeofday(); |
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2058 u->state->response_sec = tp->sec - u->state->response_sec; |
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2059 u->state->response_msec = tp->msec - u->state->response_msec; |
563 | 2060 } |
2061 | |
479 | 2062 u->finalize_request(r, rc); |
2063 | |
884 | 2064 u->peer.free(&u->peer, u->peer.data, 0); |
2065 | |
479 | 2066 if (u->peer.connection) { |
884 | 2067 |
577 | 2068 #if (NGX_HTTP_SSL) |
2069 | |
2070 /* TODO: do not shutdown persistent connection */ | |
2071 | |
2072 if (u->peer.connection->ssl) { | |
884 | 2073 |
2074 /* | |
2075 * We send the "close notify" shutdown alert to the upstream only | |
2076 * and do not wait its "close notify" shutdown alert. | |
2077 * It is acceptable according to the TLS standard. | |
2078 */ | |
2079 | |
2080 u->peer.connection->ssl->no_wait_shutdown = 1; | |
2081 | |
2082 (void) ngx_ssl_shutdown(u->peer.connection); | |
577 | 2083 } |
2084 #endif | |
884 | 2085 |
2086 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2087 "close http upstream connection: %d", | |
2088 u->peer.connection->fd); | |
2089 | |
479 | 2090 ngx_close_connection(u->peer.connection); |
2091 } | |
2092 | |
483 | 2093 u->peer.connection = NULL; |
2094 | |
563 | 2095 if (u->header_sent && (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE)) |
479 | 2096 { |
2097 rc = 0; | |
2098 } | |
2099 | |
581 | 2100 if (u->pipe && u->pipe->temp_file) { |
479 | 2101 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
2102 "http upstream temp fd: %d", | |
581 | 2103 u->pipe->temp_file->file.fd); |
479 | 2104 } |
2105 | |
2106 #if 0 | |
2107 if (u->cache) { | |
2108 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
483 | 2109 "http upstream cache fd: %d", |
479 | 2110 u->cache->ctx.file.fd); |
2111 } | |
2112 #endif | |
2113 | |
515 | 2114 if (rc == NGX_DECLINED) { |
2115 return; | |
2116 } | |
2117 | |
483 | 2118 r->connection->log->action = "sending to client"; |
2119 | |
629 | 2120 if (rc == 0 && r == r->main && !r->post_action) { |
581 | 2121 rc = ngx_http_send_special(r, NGX_HTTP_LAST); |
479 | 2122 } |
2123 | |
2124 ngx_http_finalize_request(r, rc); | |
2125 } | |
2126 | |
2127 | |
509 | 2128 static ngx_int_t |
2129 ngx_http_upstream_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
2130 ngx_uint_t offset) | |
577 | 2131 { |
509 | 2132 ngx_table_elt_t **ph; |
577 | 2133 |
509 | 2134 ph = (ngx_table_elt_t **) ((char *) &r->upstream->headers_in + offset); |
2135 | |
2136 if (*ph == NULL) { | |
2137 *ph = h; | |
2138 } | |
2139 | |
2140 return NGX_OK; | |
2141 } | |
2142 | |
2143 | |
2144 static ngx_int_t | |
2145 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
2146 ngx_table_elt_t *h, ngx_uint_t offset) | |
2147 { | |
2148 ngx_array_t *pa; | |
2149 ngx_table_elt_t **ph; | |
2150 | |
2151 pa = (ngx_array_t *) ((char *) &r->upstream->headers_in + offset); | |
2152 | |
2153 if (pa->elts == NULL) { | |
2154 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
2155 { | |
2156 return NGX_ERROR; | |
2157 } | |
2158 } | |
2159 | |
2160 ph = ngx_array_push(pa); | |
2161 if (ph == NULL) { | |
2162 return NGX_ERROR; | |
2163 } | |
2164 | |
2165 *ph = h; | |
2166 | |
2167 return NGX_OK; | |
2168 } | |
2169 | |
2170 | |
2171 static ngx_int_t | |
2172 ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
2173 ngx_uint_t offset) | |
2174 { | |
2175 return NGX_OK; | |
2176 } | |
2177 | |
2178 | |
2179 static ngx_int_t | |
527 | 2180 ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, ngx_table_elt_t *h, |
2181 ngx_uint_t offset) | |
577 | 2182 { |
527 | 2183 ngx_int_t n; |
2184 | |
2185 r->upstream->headers_in.x_accel_limit_rate = h; | |
2186 | |
2187 n = ngx_atoi(h->value.data, h->value.len); | |
2188 | |
2189 if (n != NGX_ERROR) { | |
2190 r->limit_rate = (size_t) n; | |
2191 } | |
2192 | |
2193 return NGX_OK; | |
2194 } | |
2195 | |
2196 | |
2197 static ngx_int_t | |
649 | 2198 ngx_http_upstream_process_buffering(ngx_http_request_t *r, ngx_table_elt_t *h, |
2199 ngx_uint_t offset) | |
2200 { | |
2201 u_char c0, c1, c2; | |
2202 | |
2203 if (r->upstream->conf->change_buffering) { | |
2204 | |
2205 if (h->value.len == 2) { | |
2206 c0 = ngx_tolower(h->value.data[0]); | |
2207 c1 = ngx_tolower(h->value.data[1]); | |
2208 | |
2209 if (c0 == 'n' && c1 == 'o') { | |
2210 r->upstream->buffering = 0; | |
2211 } | |
2212 | |
2213 } else if (h->value.len == 3) { | |
2214 c0 = ngx_tolower(h->value.data[0]); | |
2215 c1 = ngx_tolower(h->value.data[1]); | |
2216 c2 = ngx_tolower(h->value.data[2]); | |
2217 | |
2218 if (c0 == 'y' && c1 == 'e' && c2 == 's') { | |
2219 r->upstream->buffering = 1; | |
2220 } | |
2221 } | |
2222 } | |
2223 | |
2224 return NGX_OK; | |
2225 } | |
2226 | |
2227 | |
2228 static ngx_int_t | |
657 | 2229 ngx_http_upstream_process_charset(ngx_http_request_t *r, ngx_table_elt_t *h, |
2230 ngx_uint_t offset) | |
2231 { | |
2232 r->headers_out.override_charset = &h->value; | |
2233 | |
2234 return NGX_OK; | |
2235 } | |
2236 | |
2237 | |
2238 static ngx_int_t | |
509 | 2239 ngx_http_upstream_copy_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, |
2240 ngx_uint_t offset) | |
2241 { | |
573 | 2242 ngx_table_elt_t *ho, **ph; |
509 | 2243 |
2244 ho = ngx_list_push(&r->headers_out.headers); | |
2245 if (ho == NULL) { | |
2246 return NGX_ERROR; | |
2247 } | |
2248 | |
2249 *ho = *h; | |
2250 | |
573 | 2251 if (offset) { |
2252 ph = (ngx_table_elt_t **) ((char *) &r->headers_out + offset); | |
2253 *ph = ho; | |
2254 } | |
2255 | |
509 | 2256 return NGX_OK; |
2257 } | |
2258 | |
2259 | |
2260 static ngx_int_t | |
2261 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r, | |
2262 ngx_table_elt_t *h, ngx_uint_t offset) | |
2263 { | |
2264 ngx_array_t *pa; | |
2265 ngx_table_elt_t *ho, **ph; | |
2266 | |
2267 pa = (ngx_array_t *) ((char *) &r->headers_out + offset); | |
2268 | |
2269 if (pa->elts == NULL) { | |
2270 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
2271 { | |
2272 return NGX_ERROR; | |
2273 } | |
2274 } | |
2275 | |
2276 ph = ngx_array_push(pa); | |
2277 if (ph == NULL) { | |
2278 return NGX_ERROR; | |
2279 } | |
2280 | |
2281 ho = ngx_list_push(&r->headers_out.headers); | |
2282 if (ho == NULL) { | |
2283 return NGX_ERROR; | |
2284 } | |
2285 | |
2286 *ho = *h; | |
2287 *ph = ho; | |
2288 | |
2289 return NGX_OK; | |
2290 } | |
2291 | |
2292 | |
2293 static ngx_int_t | |
2294 ngx_http_upstream_copy_content_type(ngx_http_request_t *r, ngx_table_elt_t *h, | |
2295 ngx_uint_t offset) | |
2296 { | |
657 | 2297 u_char *p, *last; |
2298 | |
2299 r->headers_out.content_type_len = h->value.len; | |
509 | 2300 r->headers_out.content_type = h->value; |
2301 | |
657 | 2302 for (p = h->value.data; *p; p++) { |
2303 | |
2304 if (*p != ';') { | |
2305 continue; | |
2306 } | |
2307 | |
2308 last = p; | |
2309 | |
2310 while (*++p == ' ') { /* void */ } | |
2311 | |
2312 if (ngx_strncasecmp(p, "charset=", 8) != 0) { | |
2313 continue; | |
2314 } | |
2315 | |
2316 p += 8; | |
2317 | |
2318 r->headers_out.content_type_len = last - h->value.data; | |
2319 | |
2320 r->headers_out.charset.len = h->value.data + h->value.len - p; | |
2321 r->headers_out.charset.data = p; | |
2322 } | |
2323 | |
509 | 2324 return NGX_OK; |
2325 } | |
2326 | |
2327 | |
2328 static ngx_int_t | |
2329 ngx_http_upstream_copy_content_length(ngx_http_request_t *r, ngx_table_elt_t *h, | |
2330 ngx_uint_t offset) | |
2331 { | |
2332 ngx_table_elt_t *ho; | |
2333 | |
2334 ho = ngx_list_push(&r->headers_out.headers); | |
2335 if (ho == NULL) { | |
2336 return NGX_ERROR; | |
2337 } | |
2338 | |
2339 *ho = *h; | |
2340 | |
2341 r->headers_out.content_length = ho; | |
2342 r->headers_out.content_length_n = ngx_atoof(h->value.data, h->value.len); | |
2343 | |
2344 return NGX_OK; | |
2345 } | |
2346 | |
2347 | |
2348 static ngx_int_t | |
2349 ngx_http_upstream_rewrite_location(ngx_http_request_t *r, ngx_table_elt_t *h, | |
2350 ngx_uint_t offset) | |
2351 { | |
2352 ngx_int_t rc; | |
2353 ngx_table_elt_t *ho; | |
2354 | |
2355 ho = ngx_list_push(&r->headers_out.headers); | |
2356 if (ho == NULL) { | |
2357 return NGX_ERROR; | |
2358 } | |
2359 | |
2360 *ho = *h; | |
2361 | |
2362 if (r->upstream->rewrite_redirect) { | |
2363 rc = r->upstream->rewrite_redirect(r, ho, 0); | |
2364 | |
529 | 2365 if (rc == NGX_DECLINED) { |
2366 return NGX_OK; | |
2367 } | |
2368 | |
509 | 2369 if (rc == NGX_OK) { |
2370 r->headers_out.location = ho; | |
2371 | |
2372 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2373 "rewritten location: \"%V\"", &ho->value); | |
2374 } | |
2375 | |
2376 return rc; | |
2377 } | |
2378 | |
2379 /* | |
2380 * we do not set r->headers_out.location here to avoid the handling | |
2381 * the local redirects without a host name by ngx_http_header_filter() | |
2382 */ | |
2383 | |
2384 return NGX_OK; | |
2385 } | |
2386 | |
2387 | |
2388 static ngx_int_t | |
2389 ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, ngx_table_elt_t *h, | |
2390 ngx_uint_t offset) | |
2391 { | |
2392 u_char *p; | |
2393 ngx_int_t rc; | |
2394 ngx_table_elt_t *ho; | |
2395 | |
2396 ho = ngx_list_push(&r->headers_out.headers); | |
2397 if (ho == NULL) { | |
2398 return NGX_ERROR; | |
2399 } | |
2400 | |
2401 *ho = *h; | |
2402 | |
2403 if (r->upstream->rewrite_redirect) { | |
2404 | |
2405 p = (u_char *) ngx_strstr(ho->value.data, "url="); | |
2406 | |
2407 if (p) { | |
2408 rc = r->upstream->rewrite_redirect(r, ho, p + 4 - ho->value.data); | |
2409 | |
2410 } else { | |
2411 return NGX_OK; | |
2412 } | |
2413 | |
529 | 2414 if (rc == NGX_DECLINED) { |
2415 return NGX_OK; | |
2416 } | |
2417 | |
509 | 2418 #if (NGX_DEBUG) |
2419 if (rc == NGX_OK) { | |
2420 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2421 "rewritten refresh: \"%V\"", &ho->value); | |
2422 } | |
2423 #endif | |
2424 | |
2425 return rc; | |
2426 } | |
2427 | |
2428 return NGX_OK; | |
2429 } | |
2430 | |
2431 | |
2432 #if (NGX_HTTP_GZIP) | |
2433 | |
2434 static ngx_int_t | |
2435 ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
2436 ngx_table_elt_t *h, ngx_uint_t offset) | |
2437 { | |
2438 ngx_table_elt_t *ho; | |
2439 | |
2440 ho = ngx_list_push(&r->headers_out.headers); | |
2441 if (ho == NULL) { | |
2442 return NGX_ERROR; | |
2443 } | |
2444 | |
2445 *ho = *h; | |
2446 | |
2447 r->headers_out.content_encoding = ho; | |
2448 | |
2449 return NGX_OK; | |
2450 } | |
2451 | |
2452 #endif | |
2453 | |
2454 | |
487 | 2455 static ngx_int_t |
573 | 2456 ngx_http_upstream_add_variables(ngx_conf_t *cf) |
479 | 2457 { |
880 | 2458 ngx_http_variable_t *var, *v; |
479 | 2459 |
573 | 2460 for (v = ngx_http_upstream_vars; v->name.len; v++) { |
2461 var = ngx_http_add_variable(cf, &v->name, v->flags); | |
2462 if (var == NULL) { | |
2463 return NGX_ERROR; | |
2464 } | |
2465 | |
637 | 2466 var->get_handler = v->get_handler; |
573 | 2467 var->data = v->data; |
2468 } | |
2469 | |
479 | 2470 return NGX_OK; |
2471 } | |
509 | 2472 |
2473 | |
573 | 2474 static ngx_int_t |
2475 ngx_http_upstream_status_variable(ngx_http_request_t *r, | |
2476 ngx_http_variable_value_t *v, uintptr_t data) | |
2477 { | |
2478 u_char *p; | |
2479 size_t len; | |
2480 ngx_uint_t i; | |
2481 ngx_http_upstream_t *u; | |
2482 ngx_http_upstream_state_t *state; | |
2483 | |
2484 v->valid = 1; | |
2485 v->no_cachable = 0; | |
2486 v->not_found = 0; | |
2487 | |
2488 u = r->upstream; | |
2489 | |
2490 if (u == NULL || u->states.nelts == 0) { | |
2491 v->not_found = 1; | |
2492 return NGX_OK; | |
2493 } | |
2494 | |
2495 len = u->states.nelts * (3 + 2); | |
2496 | |
2497 p = ngx_palloc(r->pool, len); | |
2498 if (p == NULL) { | |
2499 return NGX_ERROR; | |
2500 } | |
2501 | |
2502 v->data = p; | |
2503 | |
2504 i = 0; | |
2505 state = u->states.elts; | |
2506 | |
2507 for ( ;; ) { | |
2508 if (state[i].status == 0) { | |
2509 *p++ = '-'; | |
2510 | |
2511 } else { | |
2512 p = ngx_sprintf(p, "%ui", state[i].status); | |
2513 } | |
2514 | |
2515 if (++i == u->states.nelts) { | |
2516 break; | |
2517 } | |
2518 | |
2519 *p++ = ','; | |
2520 *p++ = ' '; | |
2521 } | |
2522 | |
2523 v->len = p - v->data; | |
2524 | |
2525 return NGX_OK; | |
2526 } | |
2527 | |
2528 | |
2529 static ngx_int_t | |
2530 ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
2531 ngx_http_variable_value_t *v, uintptr_t data) | |
2532 { | |
2533 u_char *p; | |
2534 size_t len; | |
2535 ngx_uint_t i; | |
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2536 ngx_msec_int_t ms; |
573 | 2537 ngx_http_upstream_t *u; |
2538 ngx_http_upstream_state_t *state; | |
2539 | |
2540 v->valid = 1; | |
2541 v->no_cachable = 0; | |
2542 v->not_found = 0; | |
2543 | |
2544 u = r->upstream; | |
2545 | |
2546 if (u == NULL || u->states.nelts == 0) { | |
2547 v->not_found = 1; | |
2548 return NGX_OK; | |
2549 } | |
2550 | |
2551 len = u->states.nelts * (NGX_TIME_T_LEN + 4 + 2); | |
2552 | |
2553 p = ngx_palloc(r->pool, len); | |
2554 if (p == NULL) { | |
2555 return NGX_ERROR; | |
2556 } | |
2557 | |
2558 v->data = p; | |
2559 | |
2560 i = 0; | |
2561 state = u->states.elts; | |
2562 | |
2563 for ( ;; ) { | |
2564 if (state[i].status == 0) { | |
2565 *p++ = '-'; | |
2566 | |
2567 } else { | |
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2568 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
|
2569 ms = (ms >= 0) ? ms : 0; |
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2570 p = ngx_sprintf(p, "%d.%03d", ms / 1000, ms % 1000); |
573 | 2571 } |
2572 | |
2573 if (++i == u->states.nelts) { | |
2574 break; | |
2575 } | |
2576 | |
2577 *p++ = ','; | |
2578 *p++ = ' '; | |
2579 } | |
2580 | |
2581 v->len = p - v->data; | |
2582 | |
2583 return NGX_OK; | |
2584 } | |
2585 | |
2586 | |
651 | 2587 static char * |
2588 ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy) | |
2589 { | |
884 | 2590 char *rv; |
2591 void *mconf; | |
2592 ngx_str_t *value; | |
2593 ngx_url_t u; | |
2594 ngx_uint_t m; | |
2595 ngx_conf_t pcf; | |
2596 ngx_http_module_t *module; | |
2597 ngx_http_conf_ctx_t *ctx, *http_ctx; | |
2598 ngx_http_upstream_srv_conf_t *uscf; | |
2599 | |
2600 ngx_memzero(&u, sizeof(ngx_url_t)); | |
2601 | |
2602 value = cf->args->elts; | |
2603 u.host = value[1]; | |
2604 u.no_resolve = 1; | |
2605 | |
2606 uscf = ngx_http_upstream_add(cf, &u, NGX_HTTP_UPSTREAM_CREATE | |
2607 |NGX_HTTP_UPSTREAM_WEIGHT | |
2608 |NGX_HTTP_UPSTREAM_MAX_FAILS | |
2609 |NGX_HTTP_UPSTREAM_FAIL_TIMEOUT | |
2610 |NGX_HTTP_UPSTREAM_DOWN | |
2611 |NGX_HTTP_UPSTREAM_BACKUP); | |
2612 if (uscf == NULL) { | |
2613 return NGX_CONF_ERROR; | |
2614 } | |
2615 | |
651 | 2616 |
2617 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); | |
2618 if (ctx == NULL) { | |
2619 return NGX_CONF_ERROR; | |
2620 } | |
2621 | |
884 | 2622 http_ctx = cf->ctx; |
2623 ctx->main_conf = http_ctx->main_conf; | |
651 | 2624 |
2625 /* the upstream{}'s srv_conf */ | |
2626 | |
2627 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
2628 if (ctx->srv_conf == NULL) { | |
2629 return NGX_CONF_ERROR; | |
2630 } | |
2631 | |
2632 ctx->srv_conf[ngx_http_upstream_module.ctx_index] = uscf; | |
2633 | |
884 | 2634 uscf->srv_conf = ctx->srv_conf; |
2635 | |
651 | 2636 |
2637 /* the upstream{}'s loc_conf */ | |
2638 | |
2639 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
2640 if (ctx->loc_conf == NULL) { | |
2641 return NGX_CONF_ERROR; | |
2642 } | |
2643 | |
2644 for (m = 0; ngx_modules[m]; m++) { | |
2645 if (ngx_modules[m]->type != NGX_HTTP_MODULE) { | |
2646 continue; | |
2647 } | |
2648 | |
2649 module = ngx_modules[m]->ctx; | |
2650 | |
884 | 2651 if (module->create_srv_conf) { |
2652 mconf = module->create_srv_conf(cf); | |
2653 if (mconf == NULL) { | |
2654 return NGX_CONF_ERROR; | |
2655 } | |
2656 | |
2657 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf; | |
2658 } | |
2659 | |
651 | 2660 if (module->create_loc_conf) { |
2661 mconf = module->create_loc_conf(cf); | |
2662 if (mconf == NULL) { | |
2663 return NGX_CONF_ERROR; | |
2664 } | |
2665 | |
2666 ctx->loc_conf[ngx_modules[m]->ctx_index] = mconf; | |
2667 } | |
2668 } | |
2669 | |
2670 | |
2671 /* parse inside upstream{} */ | |
2672 | |
2673 pcf = *cf; | |
2674 cf->ctx = ctx; | |
2675 cf->cmd_type = NGX_HTTP_UPS_CONF; | |
2676 | |
2677 rv = ngx_conf_parse(cf, NULL); | |
2678 | |
2679 *cf = pcf; | |
2680 | |
2681 if (rv != NGX_CONF_OK) { | |
2682 return rv; | |
2683 } | |
2684 | |
2685 if (uscf->servers == NULL) { | |
2686 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
2687 "no servers are inside upstream"); | |
2688 return NGX_CONF_ERROR; | |
2689 } | |
2690 | |
2691 return rv; | |
2692 } | |
2693 | |
2694 | |
2695 static char * | |
2696 ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
2697 { | |
2698 ngx_http_upstream_srv_conf_t *uscf = conf; | |
2699 | |
884 | 2700 time_t fail_timeout; |
2701 ngx_str_t *value, s; | |
2702 ngx_url_t u; | |
2703 ngx_int_t weight, max_fails; | |
2704 ngx_uint_t i; | |
2705 ngx_http_upstream_server_t *us; | |
651 | 2706 |
2707 if (uscf->servers == NULL) { | |
884 | 2708 uscf->servers = ngx_array_create(cf->pool, 4, |
2709 sizeof(ngx_http_upstream_server_t)); | |
651 | 2710 if (uscf->servers == NULL) { |
2711 return NGX_CONF_ERROR; | |
2712 } | |
2713 } | |
2714 | |
884 | 2715 us = ngx_array_push(uscf->servers); |
2716 if (us == NULL) { | |
651 | 2717 return NGX_CONF_ERROR; |
2718 } | |
2719 | |
884 | 2720 ngx_memzero(us, sizeof(ngx_http_upstream_server_t)); |
2721 | |
651 | 2722 value = cf->args->elts; |
2723 | |
2724 ngx_memzero(&u, sizeof(ngx_url_t)); | |
2725 | |
2726 u.url = value[1]; | |
906 | 2727 u.default_port = 80; |
651 | 2728 |
2729 if (ngx_parse_url(cf, &u) != NGX_OK) { | |
2730 if (u.err) { | |
2731 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
2732 "%s in upstream \"%V\"", u.err, &u.url); | |
2733 } | |
2734 | |
2735 return NGX_CONF_ERROR; | |
2736 } | |
2737 | |
663 | 2738 weight = 1; |
884 | 2739 max_fails = 1; |
2740 fail_timeout = 10; | |
2741 | |
2742 for (i = 2; i < cf->args->nelts; i++) { | |
2743 | |
2744 if (ngx_strncmp(value[i].data, "weight=", 7) == 0) { | |
2745 | |
2746 if (!(uscf->flags & NGX_HTTP_UPSTREAM_WEIGHT)) { | |
2747 goto invalid; | |
2748 } | |
2749 | |
2750 weight = ngx_atoi(&value[i].data[7], value[i].len - 7); | |
663 | 2751 |
2752 if (weight == NGX_ERROR || weight == 0) { | |
2753 goto invalid; | |
2754 } | |
2755 | |
884 | 2756 continue; |
2757 } | |
2758 | |
2759 if (ngx_strncmp(value[i].data, "max_fails=", 10) == 0) { | |
2760 | |
2761 if (!(uscf->flags & NGX_HTTP_UPSTREAM_MAX_FAILS)) { | |
2762 goto invalid; | |
2763 } | |
2764 | |
2765 max_fails = ngx_atoi(&value[i].data[10], value[i].len - 10); | |
2766 | |
2767 if (max_fails == NGX_ERROR) { | |
2768 goto invalid; | |
2769 } | |
2770 | |
2771 continue; | |
663 | 2772 } |
884 | 2773 |
2774 if (ngx_strncmp(value[i].data, "fail_timeout=", 13) == 0) { | |
2775 | |
2776 if (!(uscf->flags & NGX_HTTP_UPSTREAM_FAIL_TIMEOUT)) { | |
2777 goto invalid; | |
2778 } | |
2779 | |
2780 s.len = value[i].len - 13; | |
2781 s.data = &value[i].data[13]; | |
2782 | |
2783 fail_timeout = ngx_parse_time(&s, 1); | |
2784 | |
2785 if (fail_timeout < 0) { | |
2786 goto invalid; | |
2787 } | |
2788 | |
2789 continue; | |
2790 } | |
2791 | |
2792 if (ngx_strncmp(value[i].data, "down", 4) == 0) { | |
2793 | |
2794 if (!(uscf->flags & NGX_HTTP_UPSTREAM_DOWN)) { | |
2795 goto invalid; | |
2796 } | |
2797 | |
2798 us->down = 1; | |
2799 | |
2800 continue; | |
2801 } | |
2802 | |
2803 goto invalid; | |
663 | 2804 } |
2805 | |
884 | 2806 us->addrs = u.addrs; |
2807 us->naddrs = u.naddrs; | |
2808 us->weight = weight; | |
2809 us->max_fails = max_fails; | |
2810 us->fail_timeout = fail_timeout; | |
651 | 2811 |
2812 return NGX_CONF_OK; | |
663 | 2813 |
2814 invalid: | |
2815 | |
884 | 2816 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
2817 "invalid parameter \"%V\"", &value[i]); | |
663 | 2818 |
2819 return NGX_CONF_ERROR; | |
651 | 2820 } |
2821 | |
2822 | |
2823 ngx_http_upstream_srv_conf_t * | |
884 | 2824 ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags) |
651 | 2825 { |
2826 ngx_uint_t i; | |
884 | 2827 ngx_http_upstream_server_t *us; |
651 | 2828 ngx_http_upstream_srv_conf_t *uscf, **uscfp; |
2829 ngx_http_upstream_main_conf_t *umcf; | |
2830 | |
884 | 2831 if (!(flags & NGX_HTTP_UPSTREAM_CREATE)) { |
2832 | |
651 | 2833 if (ngx_parse_url(cf, u) != NGX_OK) { |
2834 if (u->err) { | |
2835 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
2836 "%s in upstream \"%V\"", u->err, &u->url); | |
2837 } | |
2838 | |
2839 return NULL; | |
2840 } | |
2841 } | |
2842 | |
2843 umcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_upstream_module); | |
2844 | |
2845 uscfp = umcf->upstreams.elts; | |
2846 | |
2847 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
906 | 2848 |
2849 if (uscfp[i]->host.len != u->host.len | |
884 | 2850 || ngx_strncasecmp(uscfp[i]->host.data, u->host.data, u->host.len) |
2851 != 0) | |
2852 { | |
651 | 2853 continue; |
2854 } | |
2855 | |
884 | 2856 if ((flags & NGX_HTTP_UPSTREAM_CREATE) |
2857 && (uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE)) | |
651 | 2858 { |
884 | 2859 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
2860 "duplicate upstream \"%V\"", &u->host); | |
2861 return NULL; | |
651 | 2862 } |
884 | 2863 |
906 | 2864 if ((uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE) && u->port) { |
884 | 2865 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
906 | 2866 "upstream \"%V\" may not have port %d", |
2867 &u->host, u->port); | |
2868 return NULL; | |
2869 } | |
2870 | |
2871 if ((flags & NGX_HTTP_UPSTREAM_CREATE) && uscfp[i]->port) { | |
2872 ngx_log_error(NGX_LOG_WARN, cf->log, 0, | |
2873 "upstream \"%V\" may not have port %d in %s:%ui", | |
2874 &u->host, uscfp[i]->port, | |
2875 uscfp[i]->file_name.data, uscfp[i]->line); | |
2876 return NULL; | |
2877 } | |
2878 | |
2879 if (uscfp[i]->port != u->port) { | |
2880 continue; | |
884 | 2881 } |
2882 | |
2883 return uscfp[i]; | |
651 | 2884 } |
2885 | |
2886 uscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_srv_conf_t)); | |
2887 if (uscf == NULL) { | |
2888 return NULL; | |
2889 } | |
2890 | |
884 | 2891 uscf->flags = flags; |
651 | 2892 uscf->host = u->host; |
2893 uscf->file_name = cf->conf_file->file.name; | |
2894 uscf->line = cf->conf_file->line; | |
906 | 2895 uscf->port = u->port; |
2896 uscf->default_port = u->default_port; | |
884 | 2897 |
2898 if (u->naddrs == 1) { | |
2899 uscf->servers = ngx_array_create(cf->pool, 1, | |
2900 sizeof(ngx_http_upstream_server_t)); | |
2901 if (uscf->servers == NULL) { | |
2902 return NGX_CONF_ERROR; | |
2903 } | |
2904 | |
2905 us = ngx_array_push(uscf->servers); | |
2906 if (us == NULL) { | |
2907 return NGX_CONF_ERROR; | |
2908 } | |
2909 | |
2910 ngx_memzero(us, sizeof(ngx_http_upstream_server_t)); | |
2911 | |
2912 us->addrs = u->addrs; | |
2913 us->naddrs = u->naddrs; | |
2914 } | |
651 | 2915 |
2916 uscfp = ngx_array_push(&umcf->upstreams); | |
2917 if (uscfp == NULL) { | |
2918 return NULL; | |
2919 } | |
2920 | |
2921 *uscfp = uscf; | |
2922 | |
2923 return uscf; | |
2924 } | |
2925 | |
2926 | |
509 | 2927 static void * |
2928 ngx_http_upstream_create_main_conf(ngx_conf_t *cf) | |
2929 { | |
2930 ngx_http_upstream_main_conf_t *umcf; | |
2931 | |
2932 umcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_main_conf_t)); | |
2933 if (umcf == NULL) { | |
2934 return NULL; | |
2935 } | |
2936 | |
651 | 2937 if (ngx_array_init(&umcf->upstreams, cf->pool, 4, |
2938 sizeof(ngx_http_upstream_srv_conf_t *)) | |
2939 != NGX_OK) | |
2940 { | |
2941 return NGX_CONF_ERROR; | |
2942 } | |
2943 | |
509 | 2944 return umcf; |
2945 } | |
2946 | |
2947 | |
2948 static char * | |
651 | 2949 ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf) |
509 | 2950 { |
2951 ngx_http_upstream_main_conf_t *umcf = conf; | |
2952 | |
651 | 2953 ngx_uint_t i; |
2954 ngx_array_t headers_in; | |
2955 ngx_hash_key_t *hk; | |
2956 ngx_hash_init_t hash; | |
884 | 2957 ngx_http_upstream_init_pt init; |
651 | 2958 ngx_http_upstream_header_t *header; |
2959 ngx_http_upstream_srv_conf_t **uscfp; | |
2960 | |
2961 uscfp = umcf->upstreams.elts; | |
2962 | |
2963 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
884 | 2964 |
2965 init = uscfp[i]->peer.init_upstream ? uscfp[i]->peer.init_upstream: | |
2966 ngx_http_upstream_init_round_robin; | |
2967 | |
2968 if (init(cf, uscfp[i]) != NGX_OK) { | |
651 | 2969 return NGX_CONF_ERROR; |
2970 } | |
2971 } | |
649 | 2972 |
663 | 2973 |
884 | 2974 /* upstream_headers_in_hash */ |
2975 | |
649 | 2976 if (ngx_array_init(&headers_in, cf->temp_pool, 32, sizeof(ngx_hash_key_t)) |
2977 != NGX_OK) | |
509 | 2978 { |
2979 return NGX_CONF_ERROR; | |
2980 } | |
2981 | |
649 | 2982 for (header = ngx_http_upstream_headers_in; header->name.len; header++) { |
2983 hk = ngx_array_push(&headers_in); | |
2984 if (hk == NULL) { | |
2985 return NGX_CONF_ERROR; | |
2986 } | |
2987 | |
2988 hk->key = header->name; | |
2989 hk->key_hash = ngx_hash_key_lc(header->name.data, header->name.len); | |
2990 hk->value = header; | |
2991 } | |
2992 | |
2993 hash.hash = &umcf->headers_in_hash; | |
2994 hash.key = ngx_hash_key_lc; | |
2995 hash.max_size = 512; | |
751
bae59a740c40
align hash bucket size to cache line
Igor Sysoev <igor@sysoev.ru>
parents:
750
diff
changeset
|
2996 hash.bucket_size = ngx_align(64, ngx_cacheline_size); |
649 | 2997 hash.name = "upstream_headers_in_hash"; |
2998 hash.pool = cf->pool; | |
2999 hash.temp_pool = NULL; | |
3000 | |
3001 if (ngx_hash_init(&hash, headers_in.elts, headers_in.nelts) != NGX_OK) { | |
3002 return NGX_CONF_ERROR; | |
3003 } | |
509 | 3004 |
3005 return NGX_CONF_OK; | |
3006 } |