Mercurial > hg > nginx
annotate src/http/ngx_http_upstream.c @ 1153:c843f3df3b85
separate ngx_http_upstream_test_connect() and
use it in ngx_http_upstream_process_header() path too
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Sat, 31 Mar 2007 15:37:09 +0000 |
| parents | c6c42497106c |
| children | f59d15404269 |
| rev | line source |
|---|---|
| 479 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 */ | |
| 5 | |
| 6 | |
| 7 #include <ngx_config.h> | |
| 8 #include <ngx_core.h> | |
| 9 #include <ngx_http.h> | |
| 10 | |
| 11 | |
| 509 | 12 static void ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r); |
| 13 static void ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r); | |
| 14 static void ngx_http_upstream_check_broken_connection(ngx_http_request_t *r, | |
| 15 ngx_event_t *ev); | |
| 479 | 16 static void ngx_http_upstream_connect(ngx_http_request_t *r, |
| 487 | 17 ngx_http_upstream_t *u); |
| 509 | 18 static ngx_int_t ngx_http_upstream_reinit(ngx_http_request_t *r, |
| 487 | 19 ngx_http_upstream_t *u); |
| 479 | 20 static void ngx_http_upstream_send_request(ngx_http_request_t *r, |
| 487 | 21 ngx_http_upstream_t *u); |
| 479 | 22 static void ngx_http_upstream_send_request_handler(ngx_event_t *wev); |
| 23 static void ngx_http_upstream_process_header(ngx_event_t *rev); | |
|
1153
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
24 static ngx_int_t ngx_http_upstream_test_connect(ngx_connection_t *c); |
|
777
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
25 static void ngx_http_upstream_process_body_in_memory(ngx_event_t *rev); |
| 479 | 26 static void ngx_http_upstream_send_response(ngx_http_request_t *r, |
| 487 | 27 ngx_http_upstream_t *u); |
| 581 | 28 static void |
| 29 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r); | |
| 30 static void ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev); | |
| 31 static ngx_int_t ngx_http_upstream_non_buffered_filter_init(void *data); | |
| 32 static ngx_int_t ngx_http_upstream_non_buffered_filter(void *data, | |
| 33 ssize_t bytes); | |
| 509 | 34 static void ngx_http_upstream_process_downstream(ngx_http_request_t *r); |
| 479 | 35 static void ngx_http_upstream_process_body(ngx_event_t *ev); |
| 36 static void ngx_http_upstream_dummy_handler(ngx_event_t *wev); | |
| 37 static void ngx_http_upstream_next(ngx_http_request_t *r, | |
| 487 | 38 ngx_http_upstream_t *u, ngx_uint_t ft_type); |
| 569 | 39 static void ngx_http_upstream_cleanup(void *data); |
| 479 | 40 static void ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
| 487 | 41 ngx_http_upstream_t *u, ngx_int_t rc); |
| 479 | 42 |
| 509 | 43 static ngx_int_t ngx_http_upstream_process_header_line(ngx_http_request_t *r, |
| 44 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 45 static ngx_int_t | |
| 46 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
| 47 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 48 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, | |
| 49 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 527 | 50 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, |
| 51 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 649 | 52 static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r, |
| 509 | 53 ngx_table_elt_t *h, ngx_uint_t offset); |
| 657 | 54 static ngx_int_t ngx_http_upstream_process_charset(ngx_http_request_t *r, |
| 55 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 649 | 56 static ngx_int_t ngx_http_upstream_copy_header_line(ngx_http_request_t *r, |
| 509 | 57 ngx_table_elt_t *h, ngx_uint_t offset); |
| 58 static ngx_int_t | |
| 59 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r, | |
| 60 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 61 static ngx_int_t ngx_http_upstream_copy_content_type(ngx_http_request_t *r, | |
| 62 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 63 static ngx_int_t ngx_http_upstream_copy_content_length(ngx_http_request_t *r, | |
| 64 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 65 static ngx_int_t ngx_http_upstream_rewrite_location(ngx_http_request_t *r, | |
| 66 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 67 static ngx_int_t ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, | |
| 68 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 69 #if (NGX_HTTP_GZIP) | |
| 70 static ngx_int_t ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
| 71 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 72 #endif | |
| 73 | |
| 573 | 74 static ngx_int_t ngx_http_upstream_add_variables(ngx_conf_t *cf); |
| 75 static ngx_int_t ngx_http_upstream_status_variable(ngx_http_request_t *r, | |
| 76 ngx_http_variable_value_t *v, uintptr_t data); | |
| 77 static ngx_int_t ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
| 78 ngx_http_variable_value_t *v, uintptr_t data); | |
| 79 | |
| 651 | 80 static char *ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy); |
| 81 static char *ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 82 void *conf); | |
| 83 | |
| 509 | 84 static void *ngx_http_upstream_create_main_conf(ngx_conf_t *cf); |
| 651 | 85 static char *ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf); |
| 509 | 86 |
| 577 | 87 #if (NGX_HTTP_SSL) |
| 591 | 88 static void ngx_http_upstream_ssl_init_connection(ngx_http_request_t *, |
| 89 ngx_http_upstream_t *u, ngx_connection_t *c); | |
| 577 | 90 static void ngx_http_upstream_ssl_handshake(ngx_connection_t *c); |
| 91 #endif | |
| 92 | |
| 509 | 93 |
| 94 ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = { | |
| 95 | |
| 96 { ngx_string("Status"), | |
| 97 ngx_http_upstream_process_header_line, | |
| 98 offsetof(ngx_http_upstream_headers_in_t, status), | |
| 649 | 99 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 509 | 100 |
| 101 { ngx_string("Content-Type"), | |
| 102 ngx_http_upstream_process_header_line, | |
| 103 offsetof(ngx_http_upstream_headers_in_t, content_type), | |
| 673 | 104 ngx_http_upstream_copy_content_type, 0, 1 }, |
| 509 | 105 |
| 106 { ngx_string("Content-Length"), | |
| 107 ngx_http_upstream_process_header_line, | |
| 108 offsetof(ngx_http_upstream_headers_in_t, content_length), | |
| 515 | 109 ngx_http_upstream_copy_content_length, 0, 0 }, |
| 509 | 110 |
| 111 { ngx_string("Date"), | |
| 112 ngx_http_upstream_process_header_line, | |
| 113 offsetof(ngx_http_upstream_headers_in_t, date), | |
| 649 | 114 ngx_http_upstream_copy_header_line, |
| 115 offsetof(ngx_http_headers_out_t, date), 0 }, | |
| 509 | 116 |
| 117 { ngx_string("Server"), | |
| 118 ngx_http_upstream_process_header_line, | |
| 119 offsetof(ngx_http_upstream_headers_in_t, server), | |
| 649 | 120 ngx_http_upstream_copy_header_line, |
| 121 offsetof(ngx_http_headers_out_t, server), 0 }, | |
| 509 | 122 |
| 529 | 123 { ngx_string("WWW-Authenticate"), |
| 124 ngx_http_upstream_process_header_line, | |
| 125 offsetof(ngx_http_upstream_headers_in_t, www_authenticate), | |
| 126 ngx_http_upstream_copy_header_line, 0, 0 }, | |
| 127 | |
| 509 | 128 { ngx_string("Location"), |
| 129 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 130 ngx_http_upstream_rewrite_location, 0, 0 }, |
| 509 | 131 |
| 132 { ngx_string("Refresh"), | |
| 133 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 134 ngx_http_upstream_rewrite_refresh, 0, 0 }, |
| 135 | |
| 136 { ngx_string("Set-Cookie"), | |
| 137 ngx_http_upstream_ignore_header_line, 0, | |
| 531 | 138 ngx_http_upstream_copy_header_line, 0, 1 }, |
| 139 | |
| 140 { ngx_string("Content-Disposition"), | |
| 141 ngx_http_upstream_ignore_header_line, 0, | |
| 142 ngx_http_upstream_copy_header_line, 0, 1 }, | |
| 509 | 143 |
| 144 { ngx_string("Cache-Control"), | |
| 145 ngx_http_upstream_process_multi_header_lines, | |
| 146 offsetof(ngx_http_upstream_headers_in_t, cache_control), | |
| 147 ngx_http_upstream_copy_multi_header_lines, | |
| 515 | 148 offsetof(ngx_http_headers_out_t, cache_control), 1 }, |
| 509 | 149 |
| 573 | 150 { ngx_string("Expires"), |
| 151 ngx_http_upstream_process_header_line, | |
| 152 offsetof(ngx_http_upstream_headers_in_t, expires), | |
| 153 ngx_http_upstream_copy_header_line, | |
| 154 offsetof(ngx_http_headers_out_t, expires), 1 }, | |
| 155 | |
| 577 | 156 { ngx_string("Accept-Ranges"), |
| 157 ngx_http_upstream_process_header_line, | |
| 158 offsetof(ngx_http_upstream_headers_in_t, accept_ranges), | |
| 159 ngx_http_upstream_copy_header_line, | |
| 160 offsetof(ngx_http_headers_out_t, accept_ranges), 1 }, | |
| 161 | |
| 509 | 162 { ngx_string("Connection"), |
| 163 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 164 ngx_http_upstream_ignore_header_line, 0, 0 }, |
| 509 | 165 |
| 641 | 166 { ngx_string("Keep-Alive"), |
| 167 ngx_http_upstream_ignore_header_line, 0, | |
| 168 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 169 | |
| 509 | 170 { ngx_string("X-Powered-By"), |
| 171 ngx_http_upstream_ignore_header_line, 0, | |
| 649 | 172 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 509 | 173 |
| 174 { ngx_string("X-Accel-Expires"), | |
| 175 ngx_http_upstream_process_header_line, | |
| 176 offsetof(ngx_http_upstream_headers_in_t, x_accel_expires), | |
| 649 | 177 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 515 | 178 |
| 179 { ngx_string("X-Accel-Redirect"), | |
| 180 ngx_http_upstream_process_header_line, | |
| 181 offsetof(ngx_http_upstream_headers_in_t, x_accel_redirect), | |
| 182 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 509 | 183 |
| 527 | 184 { ngx_string("X-Accel-Limit-Rate"), |
| 185 ngx_http_upstream_process_limit_rate, 0, | |
| 186 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 187 | |
| 649 | 188 { ngx_string("X-Accel-Buffering"), |
| 189 ngx_http_upstream_process_buffering, 0, | |
| 190 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 191 | |
| 657 | 192 { ngx_string("X-Accel-Charset"), |
| 193 ngx_http_upstream_process_charset, 0, | |
| 194 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 195 | |
| 509 | 196 #if (NGX_HTTP_GZIP) |
| 197 { ngx_string("Content-Encoding"), | |
| 198 ngx_http_upstream_process_header_line, | |
| 199 offsetof(ngx_http_upstream_headers_in_t, content_encoding), | |
| 515 | 200 ngx_http_upstream_copy_content_encoding, 0, 0 }, |
| 509 | 201 #endif |
| 202 | |
| 515 | 203 { ngx_null_string, NULL, 0, NULL, 0, 0 } |
| 509 | 204 }; |
| 479 | 205 |
| 206 | |
| 651 | 207 static ngx_command_t ngx_http_upstream_commands[] = { |
| 208 | |
| 209 { ngx_string("upstream"), | |
| 210 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1, | |
| 211 ngx_http_upstream, | |
| 212 0, | |
| 213 0, | |
| 214 NULL }, | |
| 215 | |
| 216 { ngx_string("server"), | |
| 884 | 217 NGX_HTTP_UPS_CONF|NGX_CONF_1MORE, |
| 651 | 218 ngx_http_upstream_server, |
| 219 NGX_HTTP_SRV_CONF_OFFSET, | |
| 220 0, | |
| 221 NULL }, | |
| 222 | |
| 223 ngx_null_command | |
| 224 }; | |
| 225 | |
| 226 | |
| 227 static ngx_http_module_t ngx_http_upstream_module_ctx = { | |
| 573 | 228 ngx_http_upstream_add_variables, /* preconfiguration */ |
| 509 | 229 NULL, /* postconfiguration */ |
| 230 | |
| 231 ngx_http_upstream_create_main_conf, /* create main configuration */ | |
| 651 | 232 ngx_http_upstream_init_main_conf, /* init main configuration */ |
| 479 | 233 |
| 234 NULL, /* create server configuration */ | |
| 235 NULL, /* merge server configuration */ | |
| 236 | |
| 237 NULL, /* create location configuration */ | |
| 238 NULL /* merge location configuration */ | |
| 239 }; | |
| 577 | 240 |
| 479 | 241 |
| 242 ngx_module_t ngx_http_upstream_module = { | |
| 509 | 243 NGX_MODULE_V1, |
| 479 | 244 &ngx_http_upstream_module_ctx, /* module context */ |
| 651 | 245 ngx_http_upstream_commands, /* module directives */ |
| 479 | 246 NGX_HTTP_MODULE, /* module type */ |
| 541 | 247 NULL, /* init master */ |
| 479 | 248 NULL, /* init module */ |
| 541 | 249 NULL, /* init process */ |
| 250 NULL, /* init thread */ | |
| 251 NULL, /* exit thread */ | |
| 252 NULL, /* exit process */ | |
| 253 NULL, /* exit master */ | |
| 254 NGX_MODULE_V1_PADDING | |
| 479 | 255 }; |
| 256 | |
| 257 | |
| 573 | 258 static ngx_http_variable_t ngx_http_upstream_vars[] = { |
| 259 | |
| 637 | 260 { ngx_string("upstream_status"), NULL, |
| 583 | 261 ngx_http_upstream_status_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
| 573 | 262 |
| 637 | 263 { ngx_string("upstream_response_time"), NULL, |
| 583 | 264 ngx_http_upstream_response_time_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
| 573 | 265 |
| 637 | 266 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
| 573 | 267 }; |
| 268 | |
| 269 | |
| 487 | 270 void |
| 271 ngx_http_upstream_init(ngx_http_request_t *r) | |
| 479 | 272 { |
| 509 | 273 ngx_connection_t *c; |
| 569 | 274 ngx_http_cleanup_t *cln; |
| 509 | 275 ngx_http_upstream_t *u; |
| 276 ngx_http_core_loc_conf_t *clcf; | |
| 479 | 277 |
| 278 c = r->connection; | |
| 279 | |
| 280 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 281 "http init upstream, client timer: %d", c->read->timer_set); | |
| 282 | |
| 283 if (c->read->timer_set) { | |
| 284 ngx_del_timer(c->read); | |
| 285 } | |
| 286 | |
| 629 | 287 u = r->upstream; |
| 288 | |
| 289 if (!r->post_action && !u->conf->ignore_client_abort) { | |
| 615 | 290 r->read_event_handler = ngx_http_upstream_rd_check_broken_connection; |
| 291 r->write_event_handler = ngx_http_upstream_wr_check_broken_connection; | |
| 292 } | |
| 577 | 293 |
| 479 | 294 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) { |
| 295 | |
| 296 if (!c->write->active) { | |
| 531 | 297 if (ngx_add_event(c->write, NGX_WRITE_EVENT, NGX_CLEAR_EVENT) |
| 298 == NGX_ERROR) | |
| 479 | 299 { |
| 300 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 301 return; | |
| 302 } | |
| 303 } | |
| 304 } | |
| 305 | |
| 537 | 306 if (r->request_body) { |
| 307 u->request_bufs = r->request_body->bufs; | |
| 308 } | |
| 509 | 309 |
| 884 | 310 if (u->conf->upstream->peer.init(r, u->conf->upstream) != NGX_OK) { |
| 311 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 312 return; | |
| 313 } | |
| 314 | |
| 537 | 315 if (u->create_request(r) != NGX_OK) { |
| 479 | 316 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 317 return; | |
| 318 } | |
| 319 | |
| 509 | 320 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
| 479 | 321 |
| 322 u->output.sendfile = r->connection->sendfile; | |
| 323 u->output.pool = r->pool; | |
| 324 u->output.bufs.num = 1; | |
| 509 | 325 u->output.bufs.size = clcf->client_body_buffer_size; |
| 479 | 326 u->output.output_filter = ngx_chain_writer; |
| 327 u->output.filter_ctx = &u->writer; | |
| 328 | |
| 329 u->writer.pool = r->pool; | |
| 330 | |
| 884 | 331 if (ngx_array_init(&u->states, r->pool, 1, |
| 569 | 332 sizeof(ngx_http_upstream_state_t)) |
| 333 != NGX_OK) | |
| 479 | 334 { |
| 335 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 336 return; | |
| 337 } | |
| 338 | |
| 593 | 339 cln = ngx_http_cleanup_add(r, 0); |
| 569 | 340 if (cln == NULL) { |
| 341 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 342 return; | |
| 343 } | |
| 344 | |
| 345 cln->handler = ngx_http_upstream_cleanup; | |
| 346 cln->data = r; | |
| 347 u->cleanup = &cln->handler; | |
| 348 | |
| 479 | 349 ngx_http_upstream_connect(r, u); |
| 350 } | |
| 351 | |
| 352 | |
| 487 | 353 static void |
| 509 | 354 ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r) |
| 355 { | |
| 356 ngx_http_upstream_check_broken_connection(r, r->connection->read); | |
| 357 } | |
| 358 | |
| 359 | |
| 360 static void | |
| 361 ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r) | |
| 362 { | |
| 363 ngx_http_upstream_check_broken_connection(r, r->connection->write); | |
| 364 } | |
| 365 | |
| 366 | |
| 367 static void | |
| 368 ngx_http_upstream_check_broken_connection(ngx_http_request_t *r, | |
| 369 ngx_event_t *ev) | |
| 479 | 370 { |
| 371 int n; | |
| 372 char buf[1]; | |
| 577 | 373 ngx_err_t err; |
| 479 | 374 ngx_connection_t *c; |
| 375 ngx_http_upstream_t *u; | |
| 376 | |
| 527 | 377 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, ev->log, 0, |
| 378 "http upstream check client, write event:%d, \"%V\"", | |
| 379 ev->write, &r->uri); | |
| 479 | 380 |
| 509 | 381 c = r->connection; |
| 483 | 382 u = r->upstream; |
| 383 | |
| 583 | 384 if (c->error) { |
| 527 | 385 ngx_http_upstream_finalize_request(r, u, |
| 386 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 387 return; | |
| 388 } | |
| 389 | |
| 483 | 390 if (u->peer.connection == NULL) { |
| 391 return; | |
| 392 } | |
| 393 | |
| 479 | 394 #if (NGX_HAVE_KQUEUE) |
| 395 | |
| 396 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { | |
| 397 | |
| 398 if (!ev->pending_eof) { | |
| 399 return; | |
| 400 } | |
| 401 | |
| 402 ev->eof = 1; | |
| 583 | 403 c->error = 1; |
| 479 | 404 |
| 405 if (ev->kq_errno) { | |
| 406 ev->error = 1; | |
| 407 } | |
| 408 | |
| 409 if (!u->cachable && u->peer.connection) { | |
| 410 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno, | |
| 527 | 411 "kevent() reported that client closed prematurely " |
| 412 "connection, so upstream connection is closed too"); | |
| 479 | 413 ngx_http_upstream_finalize_request(r, u, |
| 414 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 415 return; | |
| 416 } | |
| 417 | |
| 418 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno, | |
| 419 "kevent() reported that client closed " | |
| 420 "prematurely connection"); | |
| 421 | |
| 422 if (u->peer.connection == NULL) { | |
| 423 ngx_http_upstream_finalize_request(r, u, | |
| 424 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 425 return; | |
| 426 } | |
| 427 | |
| 428 return; | |
| 429 } | |
| 430 | |
| 431 #endif | |
| 432 | |
| 433 n = recv(c->fd, buf, 1, MSG_PEEK); | |
| 434 | |
| 435 err = ngx_socket_errno; | |
| 436 | |
| 1109 | 437 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ev->log, err, |
| 438 "http upstream recv(): %d", n); | |
| 439 | |
| 479 | 440 /* |
| 441 * we do not need to disable the write event because | |
| 442 * that event has NGX_USE_CLEAR_EVENT type | |
| 443 */ | |
| 444 | |
| 445 if (ev->write && (n >= 0 || err == NGX_EAGAIN)) { | |
| 446 return; | |
| 447 } | |
| 448 | |
| 449 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) { | |
| 450 if (ngx_del_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) { | |
| 451 ngx_http_upstream_finalize_request(r, u, | |
| 452 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 453 return; | |
| 454 } | |
| 455 } | |
| 456 | |
| 457 if (n > 0) { | |
| 458 return; | |
| 459 } | |
| 460 | |
| 461 if (n == -1) { | |
| 462 if (err == NGX_EAGAIN) { | |
| 463 return; | |
| 464 } | |
| 465 | |
| 466 ev->error = 1; | |
| 467 | |
| 483 | 468 } else { /* n == 0 */ |
| 479 | 469 err = 0; |
| 470 } | |
| 471 | |
| 529 | 472 ev->eof = 1; |
| 583 | 473 c->error = 1; |
| 529 | 474 |
| 479 | 475 if (!u->cachable && u->peer.connection) { |
| 476 ngx_log_error(NGX_LOG_INFO, ev->log, err, | |
| 477 "client closed prematurely connection, " | |
| 478 "so upstream connection is closed too"); | |
| 479 ngx_http_upstream_finalize_request(r, u, | |
| 480 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 481 return; | |
| 482 } | |
| 483 | |
| 484 ngx_log_error(NGX_LOG_INFO, ev->log, err, | |
| 485 "client closed prematurely connection"); | |
| 486 | |
| 487 if (u->peer.connection == NULL) { | |
| 488 ngx_http_upstream_finalize_request(r, u, | |
| 489 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 490 return; | |
| 491 } | |
| 492 } | |
| 493 | |
| 494 | |
| 487 | 495 static void |
| 496 ngx_http_upstream_connect(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 479 | 497 { |
| 591 | 498 ngx_int_t rc; |
| 665 | 499 ngx_time_t *tp; |
| 591 | 500 ngx_connection_t *c; |
| 479 | 501 |
| 483 | 502 r->connection->log->action = "connecting to upstream"; |
| 479 | 503 |
| 504 r->connection->single_connection = 0; | |
| 505 | |
|
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506 if (u->state && u->state->response_sec) { |
| 665 | 507 tp = ngx_timeofday(); |
|
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508 u->state->response_sec = tp->sec - u->state->response_sec; |
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509 u->state->response_msec = tp->msec - u->state->response_msec; |
| 665 | 510 } |
| 511 | |
| 512 u->state = ngx_array_push(&u->states); | |
| 513 if (u->state == NULL) { | |
| 514 ngx_http_upstream_finalize_request(r, u, | |
| 515 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 516 return; | |
| 517 } | |
| 518 | |
| 519 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t)); | |
| 520 | |
| 521 tp = ngx_timeofday(); | |
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522 u->state->response_sec = tp->sec; |
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523 u->state->response_msec = tp->msec; |
| 665 | 524 |
| 479 | 525 rc = ngx_event_connect_peer(&u->peer); |
| 526 | |
| 527 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 528 "http upstream connect: %i", rc); | |
| 529 | |
| 530 if (rc == NGX_ERROR) { | |
| 531 ngx_http_upstream_finalize_request(r, u, | |
| 532 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 533 return; | |
| 534 } | |
| 535 | |
| 884 | 536 u->state->peer = u->peer.name; |
| 479 | 537 |
| 543 | 538 if (rc == NGX_BUSY) { |
| 539 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no live upstreams"); | |
| 540 } | |
| 541 | |
| 542 if (rc == NGX_BUSY || rc == NGX_DECLINED) { | |
| 479 | 543 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
| 544 return; | |
| 545 } | |
| 546 | |
| 577 | 547 /* rc == NGX_OK || rc == NGX_AGAIN */ |
| 548 | |
| 479 | 549 c = u->peer.connection; |
| 550 | |
| 551 c->data = r; | |
| 591 | 552 |
| 509 | 553 c->write->handler = ngx_http_upstream_send_request_handler; |
| 554 c->read->handler = ngx_http_upstream_process_header; | |
| 479 | 555 |
| 556 c->sendfile = r->connection->sendfile; | |
| 557 | |
| 558 c->pool = r->pool; | |
| 559 c->read->log = c->write->log = c->log = r->connection->log; | |
| 560 | |
| 561 /* init or reinit the ngx_output_chain() and ngx_chain_writer() contexts */ | |
| 562 | |
| 563 u->writer.out = NULL; | |
| 564 u->writer.last = &u->writer.out; | |
| 565 u->writer.connection = c; | |
| 566 u->writer.limit = 0; | |
| 567 | |
| 568 if (u->request_sent) { | |
| 509 | 569 if (ngx_http_upstream_reinit(r, u) != NGX_OK) { |
| 570 ngx_http_upstream_finalize_request(r, u, | |
| 571 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 572 return; | |
| 573 } | |
| 479 | 574 } |
| 575 | |
|
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576 if (r->request_body |
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577 && r->request_body->buf |
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578 && r->request_body->temp_file |
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579 && r == r->main) |
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580 { |
| 573 | 581 /* |
| 582 * the r->request_body->buf can be reused for one request only, | |
| 583 * the subrequests should allocate their own temporay bufs | |
| 584 */ | |
| 585 | |
| 586 u->output.free = ngx_alloc_chain_link(r->pool); | |
| 587 if (u->output.free == NULL) { | |
| 588 ngx_http_upstream_finalize_request(r, u, | |
| 589 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 590 return; | |
| 479 | 591 } |
| 573 | 592 |
| 593 u->output.free->buf = r->request_body->buf; | |
| 594 u->output.free->next = NULL; | |
| 595 u->output.allocated = 1; | |
| 596 | |
| 597 r->request_body->buf->pos = r->request_body->buf->start; | |
| 598 r->request_body->buf->last = r->request_body->buf->start; | |
| 599 r->request_body->buf->tag = u->output.tag; | |
| 479 | 600 } |
| 601 | |
| 602 u->request_sent = 0; | |
| 603 | |
| 604 if (rc == NGX_AGAIN) { | |
| 605 ngx_add_timer(c->write, u->conf->connect_timeout); | |
| 606 return; | |
| 607 } | |
| 608 | |
| 577 | 609 #if (NGX_HTTP_SSL) |
| 610 | |
| 591 | 611 if (u->conf->ssl && c->ssl == NULL) { |
| 612 ngx_http_upstream_ssl_init_connection(r, u, c); | |
| 577 | 613 return; |
| 614 } | |
| 615 | |
| 616 #endif | |
| 617 | |
| 479 | 618 ngx_http_upstream_send_request(r, u); |
| 619 } | |
| 620 | |
| 621 | |
| 577 | 622 #if (NGX_HTTP_SSL) |
| 623 | |
| 624 static void | |
| 591 | 625 ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r, |
| 626 ngx_http_upstream_t *u, ngx_connection_t *c) | |
| 627 { | |
| 884 | 628 ngx_int_t rc; |
| 591 | 629 |
| 630 if (ngx_ssl_create_connection(u->conf->ssl, c, | |
| 631 NGX_SSL_BUFFER|NGX_SSL_CLIENT) | |
| 632 == NGX_ERROR) | |
| 633 { | |
| 634 ngx_http_upstream_finalize_request(r, u, | |
| 635 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 636 return; | |
| 637 } | |
| 638 | |
| 639 c->sendfile = 0; | |
| 619 | 640 u->output.sendfile = 0; |
| 591 | 641 |
| 884 | 642 if (ngx_ssl_set_session(c, u->peer.ssl_session) != NGX_OK) { |
| 591 | 643 ngx_http_upstream_finalize_request(r, u, |
| 644 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 645 return; | |
| 646 } | |
| 647 | |
| 641 | 648 r->connection->log->action = "SSL handshaking to upstream"; |
| 649 | |
| 591 | 650 rc = ngx_ssl_handshake(c); |
| 651 | |
| 652 if (rc == NGX_AGAIN) { | |
| 653 c->ssl->handler = ngx_http_upstream_ssl_handshake; | |
| 654 return; | |
| 655 } | |
| 656 | |
| 657 ngx_http_upstream_ssl_handshake(c); | |
| 658 } | |
| 659 | |
| 660 | |
| 661 static void | |
| 577 | 662 ngx_http_upstream_ssl_handshake(ngx_connection_t *c) |
| 663 { | |
| 664 ngx_http_request_t *r; | |
| 665 ngx_http_upstream_t *u; | |
| 666 | |
| 667 r = c->data; | |
| 668 u = r->upstream; | |
| 669 | |
| 670 if (c->ssl->handshaked) { | |
| 671 | |
| 884 | 672 u->peer.save_session(&u->peer, u->peer.data); |
| 673 | |
| 577 | 674 c->write->handler = ngx_http_upstream_send_request_handler; |
| 675 c->read->handler = ngx_http_upstream_process_header; | |
| 676 | |
| 677 ngx_http_upstream_send_request(r, u); | |
| 678 | |
| 679 return; | |
| 680 } | |
| 681 | |
| 682 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 683 | |
| 684 } | |
| 685 | |
| 686 #endif | |
| 687 | |
| 688 | |
| 509 | 689 static ngx_int_t |
| 487 | 690 ngx_http_upstream_reinit(ngx_http_request_t *r, ngx_http_upstream_t *u) |
| 479 | 691 { |
| 692 ngx_chain_t *cl; | |
| 693 | |
| 509 | 694 if (u->reinit_request(r) != NGX_OK) { |
| 695 return NGX_ERROR; | |
| 696 } | |
| 697 | |
| 698 ngx_memzero(&r->upstream->headers_in, | |
| 699 sizeof(ngx_http_upstream_headers_in_t)); | |
| 700 | |
| 701 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, | |
| 591 | 702 sizeof(ngx_table_elt_t)) |
| 703 != NGX_OK) | |
| 509 | 704 { |
| 705 return NGX_ERROR; | |
| 479 | 706 } |
| 707 | |
| 708 /* reinit the request chain */ | |
| 577 | 709 |
| 509 | 710 for (cl = u->request_bufs; cl; cl = cl->next) { |
| 479 | 711 cl->buf->pos = cl->buf->start; |
| 712 cl->buf->file_pos = 0; | |
| 713 } | |
| 714 | |
| 509 | 715 /* reinit the subrequest's ngx_output_chain() context */ |
| 716 | |
| 573 | 717 if (r->request_body && r->request_body->temp_file |
| 597 | 718 && r != r->main && u->output.buf) |
| 573 | 719 { |
| 720 u->output.free = ngx_alloc_chain_link(r->pool); | |
| 721 if (u->output.free == NULL) { | |
| 722 return NGX_ERROR; | |
| 509 | 723 } |
| 573 | 724 |
| 725 u->output.free->buf = u->output.buf; | |
| 726 u->output.free->next = NULL; | |
| 727 | |
| 728 u->output.buf->pos = u->output.buf->start; | |
| 729 u->output.buf->last = u->output.buf->start; | |
| 509 | 730 } |
| 479 | 731 |
| 732 u->output.buf = NULL; | |
| 733 u->output.in = NULL; | |
| 734 u->output.busy = NULL; | |
| 577 | 735 |
| 581 | 736 /* reinit u->buffer */ |
| 577 | 737 |
| 479 | 738 #if 0 |
| 739 if (u->cache) { | |
| 581 | 740 u->buffer.pos = u->buffer.start + u->cache->ctx.header_size; |
| 741 u->buffer.last = u->buffer.pos; | |
| 479 | 742 |
| 743 } else { | |
| 581 | 744 u->buffer.pos = u->buffer.start; |
| 745 u->buffer.last = u->buffer.start; | |
| 479 | 746 } |
| 747 #else | |
| 509 | 748 |
| 581 | 749 u->buffer.pos = u->buffer.start; |
| 750 u->buffer.last = u->buffer.start; | |
| 509 | 751 |
| 479 | 752 #endif |
| 753 | |
| 509 | 754 return NGX_OK; |
| 479 | 755 } |
| 756 | |
| 757 | |
| 487 | 758 static void |
| 759 ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 479 | 760 { |
|
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761 ngx_int_t rc; |
| 483 | 762 ngx_connection_t *c; |
| 577 | 763 |
| 479 | 764 c = u->peer.connection; |
| 765 | |
| 766 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 767 "http upstream send request"); | |
| 768 | |
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769 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) { |
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770 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
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771 return; |
| 479 | 772 } |
| 773 | |
| 483 | 774 c->log->action = "sending request to upstream"; |
| 479 | 775 |
| 509 | 776 rc = ngx_output_chain(&u->output, u->request_sent ? NULL : u->request_bufs); |
| 479 | 777 |
| 778 u->request_sent = 1; | |
| 779 | |
| 780 if (rc == NGX_ERROR) { | |
| 781 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 782 return; | |
| 783 } | |
| 784 | |
| 785 if (c->write->timer_set) { | |
| 786 ngx_del_timer(c->write); | |
| 787 } | |
| 788 | |
| 789 if (rc == NGX_AGAIN) { | |
| 790 ngx_add_timer(c->write, u->conf->send_timeout); | |
| 791 | |
| 792 if (ngx_handle_write_event(c->write, u->conf->send_lowat) == NGX_ERROR) | |
| 793 { | |
| 794 ngx_http_upstream_finalize_request(r, u, | |
| 795 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 796 return; | |
| 797 } | |
| 798 | |
| 799 return; | |
| 800 } | |
| 801 | |
| 802 /* rc == NGX_OK */ | |
| 803 | |
| 804 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) { | |
| 805 if (ngx_tcp_push(c->fd) == NGX_ERROR) { | |
| 806 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno, | |
| 807 ngx_tcp_push_n " failed"); | |
| 808 ngx_http_upstream_finalize_request(r, u, | |
| 809 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 577 | 810 return; |
| 479 | 811 } |
| 812 | |
| 813 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET; | |
| 814 } | |
| 577 | 815 |
| 479 | 816 ngx_add_timer(c->read, u->conf->read_timeout); |
| 817 | |
| 818 #if 1 | |
| 819 if (c->read->ready) { | |
| 577 | 820 |
| 479 | 821 /* post aio operation */ |
| 822 | |
| 823 /* | |
| 824 * TODO comment | |
| 825 * although we can post aio operation just in the end | |
| 826 * of ngx_http_upstream_connect() CHECK IT !!! | |
| 827 * it's better to do here because we postpone header buffer allocation | |
| 828 */ | |
| 829 | |
| 830 ngx_http_upstream_process_header(c->read); | |
| 831 return; | |
| 832 } | |
| 833 #endif | |
| 834 | |
| 509 | 835 c->write->handler = ngx_http_upstream_dummy_handler; |
| 479 | 836 |
| 509 | 837 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) { |
| 479 | 838 ngx_http_upstream_finalize_request(r, u, |
| 839 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 840 return; | |
| 841 } | |
| 842 } | |
| 843 | |
| 844 | |
| 487 | 845 static void |
| 846 ngx_http_upstream_send_request_handler(ngx_event_t *wev) | |
| 479 | 847 { |
| 848 ngx_connection_t *c; | |
| 849 ngx_http_request_t *r; | |
| 850 ngx_http_upstream_t *u; | |
| 851 | |
| 852 c = wev->data; | |
| 853 r = c->data; | |
| 854 u = r->upstream; | |
| 855 | |
| 856 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
| 857 "http upstream send request handler"); | |
| 858 | |
| 859 if (wev->timedout) { | |
| 860 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
| 861 return; | |
| 862 } | |
| 863 | |
| 591 | 864 #if (NGX_HTTP_SSL) |
| 865 | |
| 866 if (u->conf->ssl && c->ssl == NULL) { | |
| 867 ngx_http_upstream_ssl_init_connection(r, u, c); | |
| 868 return; | |
| 869 } | |
| 870 | |
| 871 #endif | |
| 872 | |
| 651 | 873 if (u->header_sent) { |
| 874 wev->handler = ngx_http_upstream_dummy_handler; | |
| 875 | |
| 876 (void) ngx_handle_write_event(wev, 0); | |
| 877 | |
| 878 return; | |
| 879 } | |
| 880 | |
| 479 | 881 ngx_http_upstream_send_request(r, u); |
| 882 } | |
| 883 | |
| 884 | |
| 487 | 885 static void |
| 886 ngx_http_upstream_process_header(ngx_event_t *rev) | |
| 479 | 887 { |
| 515 | 888 ssize_t n; |
| 889 ngx_int_t rc; | |
| 573 | 890 ngx_str_t *uri, args; |
| 649 | 891 ngx_uint_t i, flags; |
| 515 | 892 ngx_list_part_t *part; |
| 893 ngx_table_elt_t *h; | |
| 894 ngx_connection_t *c; | |
| 895 ngx_http_request_t *r; | |
| 896 ngx_http_upstream_t *u; | |
| 897 ngx_http_err_page_t *err_page; | |
| 898 ngx_http_core_loc_conf_t *clcf; | |
| 899 ngx_http_upstream_header_t *hh; | |
| 900 ngx_http_upstream_main_conf_t *umcf; | |
| 479 | 901 |
| 902 c = rev->data; | |
| 903 r = c->data; | |
| 904 u = r->upstream; | |
| 905 | |
| 906 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, | |
| 483 | 907 "http upstream process header"); |
| 479 | 908 |
| 483 | 909 c->log->action = "reading response header from upstream"; |
| 479 | 910 |
| 911 if (rev->timedout) { | |
| 912 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
| 913 return; | |
| 914 } | |
| 577 | 915 |
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916 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) { |
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917 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
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918 return; |
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919 } |
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920 |
| 581 | 921 if (u->buffer.start == NULL) { |
| 922 u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size); | |
| 923 if (u->buffer.start == NULL) { | |
| 479 | 924 ngx_http_upstream_finalize_request(r, u, |
| 925 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 926 return; | |
| 927 } | |
| 928 | |
| 581 | 929 u->buffer.pos = u->buffer.start; |
| 930 u->buffer.last = u->buffer.start; | |
| 931 u->buffer.end = u->buffer.start + u->conf->buffer_size; | |
| 932 u->buffer.temporary = 1; | |
| 933 | |
| 934 u->buffer.tag = u->output.tag; | |
| 479 | 935 |
| 509 | 936 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, |
| 581 | 937 sizeof(ngx_table_elt_t)) |
| 938 != NGX_OK) | |
| 509 | 939 { |
| 940 ngx_http_upstream_finalize_request(r, u, | |
| 941 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 942 return; | |
| 943 } | |
| 944 | |
| 479 | 945 #if 0 |
| 946 if (u->cache) { | |
| 581 | 947 u->buffer.pos += u->cache->ctx.header_size; |
| 948 u->buffer.last = u->buffer.pos; | |
| 479 | 949 } |
| 950 #endif | |
| 951 } | |
| 952 | |
| 581 | 953 n = u->peer.connection->recv(u->peer.connection, u->buffer.last, |
| 884 | 954 u->buffer.end - u->buffer.last); |
| 479 | 955 |
| 956 if (n == NGX_AGAIN) { | |
| 957 #if 0 | |
| 958 ngx_add_timer(rev, u->read_timeout); | |
| 959 #endif | |
| 960 | |
| 961 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 962 ngx_http_upstream_finalize_request(r, u, | |
| 963 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 964 return; | |
| 965 } | |
| 966 | |
| 967 return; | |
| 968 } | |
| 969 | |
| 970 if (n == 0) { | |
| 971 ngx_log_error(NGX_LOG_ERR, rev->log, 0, | |
| 972 "upstream prematurely closed connection"); | |
| 973 } | |
| 974 | |
| 975 if (n == NGX_ERROR || n == 0) { | |
| 976 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 977 return; | |
| 978 } | |
| 979 | |
| 581 | 980 u->buffer.last += n; |
| 479 | 981 |
| 982 #if 0 | |
| 983 u->valid_header_in = 0; | |
| 984 | |
| 985 u->peer.cached = 0; | |
| 986 #endif | |
| 987 | |
| 988 rc = u->process_header(r); | |
| 989 | |
| 990 if (rc == NGX_AGAIN) { | |
| 991 #if 0 | |
| 992 ngx_add_timer(rev, u->read_timeout); | |
| 993 #endif | |
| 994 | |
| 581 | 995 if (u->buffer.pos == u->buffer.end) { |
| 479 | 996 ngx_log_error(NGX_LOG_ERR, rev->log, 0, |
| 997 "upstream sent too big header"); | |
| 998 | |
| 999 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
| 1000 return; | |
| 1001 } | |
| 1002 | |
| 1003 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 1004 ngx_http_upstream_finalize_request(r, u, | |
| 1005 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1006 return; | |
| 1007 } | |
| 1008 | |
| 1009 return; | |
| 1010 } | |
| 1011 | |
| 1012 if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) { | |
| 1013 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
| 1014 return; | |
| 1015 } | |
| 1016 | |
| 1017 if (rc == NGX_ERROR || rc == NGX_HTTP_INTERNAL_SERVER_ERROR) { | |
| 1018 ngx_http_upstream_finalize_request(r, u, | |
| 1019 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1020 return; | |
| 1021 } | |
| 1022 | |
| 1023 /* rc == NGX_OK */ | |
| 1024 | |
|
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|
1025 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
|
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|
1026 && r->subrequest_in_memory) |
|
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diff
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|
1027 { |
|
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diff
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|
1028 u->buffer.last = u->buffer.pos; |
|
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|
1029 } |
|
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|
1030 |
| 529 | 1031 if (u->headers_in.status_n == NGX_HTTP_INTERNAL_SERVER_ERROR) { |
| 509 | 1032 |
| 1033 if (u->peer.tries > 1 | |
| 1034 && (u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
| 1035 { | |
| 1036 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_500); | |
| 1037 return; | |
| 1038 } | |
| 1039 | |
| 1040 #if (NGX_HTTP_CACHE) | |
| 1041 | |
| 1042 if (u->peer.tries == 0 | |
| 1043 && u->stale | |
| 1044 && (u->conf->use_stale & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
| 1045 { | |
| 1046 ngx_http_upstream_finalize_request(r, u, | |
| 529 | 1047 ngx_http_send_cached_response(r)); |
| 509 | 1048 return; |
| 1049 } | |
| 1050 | |
| 1051 #endif | |
| 1052 } | |
| 1053 | |
| 597 | 1054 if (u->headers_in.status_n == NGX_HTTP_NOT_FOUND) { |
| 1055 | |
| 1056 if (u->peer.tries > 1 | |
| 1057 && u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_404) | |
| 1058 { | |
| 1059 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_404); | |
| 1060 return; | |
| 1061 } | |
| 1062 | |
| 675 | 1063 if (u->conf->intercept_404) { |
| 1064 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_NOT_FOUND); | |
| 597 | 1065 return; |
| 1066 } | |
| 509 | 1067 } |
| 1068 | |
| 1069 | |
| 529 | 1070 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
| 675 | 1071 && u->conf->intercept_errors) |
| 487 | 1072 { |
| 1073 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 1074 | |
| 1075 if (clcf->error_pages) { | |
| 1076 | |
| 1077 err_page = clcf->error_pages->elts; | |
| 1078 for (i = 0; i < clcf->error_pages->nelts; i++) { | |
| 529 | 1079 if (err_page[i].status == (ngx_int_t) u->headers_in.status_n) { |
| 1080 | |
| 1081 if (u->headers_in.status_n == NGX_HTTP_UNAUTHORIZED) { | |
| 1082 | |
| 1083 r->headers_out.www_authenticate = | |
| 1084 ngx_list_push(&r->headers_out.headers); | |
| 1085 | |
| 1086 if (r->headers_out.www_authenticate == NULL) { | |
| 1087 ngx_http_upstream_finalize_request(r, u, | |
| 1088 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1089 return; | |
| 1090 } | |
| 1091 | |
| 577 | 1092 *r->headers_out.www_authenticate = |
| 529 | 1093 *u->headers_in.www_authenticate; |
| 1094 } | |
| 1095 | |
| 487 | 1096 ngx_http_upstream_finalize_request(r, u, |
| 529 | 1097 u->headers_in.status_n); |
| 487 | 1098 return; |
| 1099 } | |
| 1100 } | |
| 1101 } | |
| 1102 } | |
| 1103 | |
| 681 | 1104 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); |
| 1105 | |
| 515 | 1106 if (r->upstream->headers_in.x_accel_redirect) { |
|
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diff
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|
1107 |
| 515 | 1108 ngx_http_upstream_finalize_request(r, u, NGX_DECLINED); |
| 1109 | |
| 1110 part = &r->upstream->headers_in.headers.part; | |
| 1111 h = part->elts; | |
| 1112 | |
| 1113 for (i = 0; /* void */; i++) { | |
| 1114 | |
| 1115 if (i >= part->nelts) { | |
| 1116 if (part->next == NULL) { | |
| 1117 break; | |
| 1118 } | |
| 577 | 1119 |
| 515 | 1120 part = part->next; |
| 1121 h = part->elts; | |
| 1122 i = 0; | |
| 1123 } | |
| 1124 | |
| 649 | 1125 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, |
| 1126 h[i].lowcase_key, h[i].key.len); | |
| 1127 | |
| 1128 if (hh && hh->redirect) { | |
| 1129 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
|
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|
1130 ngx_http_finalize_request(r, |
|
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|
1131 NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 515 | 1132 return; |
| 1133 } | |
| 1134 } | |
| 1135 } | |
| 1136 | |
| 573 | 1137 uri = &r->upstream->headers_in.x_accel_redirect->value; |
| 1138 args.len = 0; | |
| 1139 args.data = NULL; | |
| 1140 flags = 0; | |
| 1141 | |
| 1142 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) { | |
|
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diff
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|
1143 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND); |
| 573 | 1144 return; |
| 1145 } | |
| 1146 | |
| 1147 if (flags & NGX_HTTP_ZERO_IN_URI) { | |
| 1148 r->zero_in_uri = 1; | |
| 1149 } | |
| 1150 | |
| 653 | 1151 if (r->method != NGX_HTTP_HEAD) { |
| 1152 r->method = NGX_HTTP_GET; | |
| 1153 } | |
| 1154 | |
| 573 | 1155 ngx_http_internal_redirect(r, uri, &args); |
| 515 | 1156 return; |
| 1157 } | |
| 1158 | |
| 509 | 1159 part = &r->upstream->headers_in.headers.part; |
| 1160 h = part->elts; | |
| 1161 | |
| 1162 for (i = 0; /* void */; i++) { | |
| 479 | 1163 |
| 509 | 1164 if (i >= part->nelts) { |
| 1165 if (part->next == NULL) { | |
| 1166 break; | |
| 1167 } | |
| 577 | 1168 |
| 509 | 1169 part = part->next; |
| 1170 h = part->elts; | |
| 1171 i = 0; | |
| 1172 } | |
| 1173 | |
| 649 | 1174 if (ngx_hash_find(&u->conf->hide_headers_hash, h[i].hash, |
| 1175 h[i].lowcase_key, h[i].key.len)) | |
| 509 | 1176 { |
| 649 | 1177 continue; |
| 1178 } | |
| 1179 | |
| 1180 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, | |
| 1181 h[i].lowcase_key, h[i].key.len); | |
| 1182 | |
| 1183 if (hh) { | |
| 1184 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
| 509 | 1185 ngx_http_upstream_finalize_request(r, u, |
| 1186 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1187 return; | |
| 1188 } | |
| 1189 | |
| 1190 continue; | |
| 1191 } | |
| 1192 | |
| 1193 if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) { | |
| 1194 ngx_http_upstream_finalize_request(r, u, | |
| 1195 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1196 return; | |
| 1197 } | |
| 1198 } | |
| 1199 | |
| 649 | 1200 if (r->headers_out.server && r->headers_out.server->value.data == NULL) { |
| 1201 r->headers_out.server->hash = 0; | |
| 1202 } | |
| 1203 | |
| 1204 if (r->headers_out.date && r->headers_out.date->value.data == NULL) { | |
| 1205 r->headers_out.date->hash = 0; | |
| 1206 } | |
| 1207 | |
| 529 | 1208 r->headers_out.status = u->headers_in.status_n; |
| 1209 r->headers_out.status_line = u->headers_in.status_line; | |
| 1210 | |
| 581 | 1211 if (r->headers_out.content_length_n != -1) { |
| 1212 u->length = (size_t) r->headers_out.content_length_n; | |
| 1213 | |
| 1214 } else { | |
| 1215 u->length = NGX_MAX_SIZE_T_VALUE; | |
| 1216 } | |
| 1217 | |
|
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|
1218 if (!r->subrequest_in_memory) { |
|
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diff
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|
1219 ngx_http_upstream_send_response(r, u); |
|
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diff
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|
1220 return; |
|
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parents:
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diff
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|
1221 } |
|
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parents:
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diff
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|
1222 |
|
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diff
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|
1223 /* subrequest content in memory */ |
|
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|
1224 |
|
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diff
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|
1225 if (u->input_filter == NULL) { |
|
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parents:
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diff
changeset
|
1226 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; |
|
4ab852b691f5
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parents:
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diff
changeset
|
1227 u->input_filter = ngx_http_upstream_non_buffered_filter; |
|
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diff
changeset
|
1228 u->input_filter_ctx = r; |
|
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diff
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|
1229 } |
|
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diff
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|
1230 |
|
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diff
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|
1231 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { |
|
4ab852b691f5
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diff
changeset
|
1232 ngx_http_upstream_finalize_request(r, u, |
|
4ab852b691f5
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diff
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|
1233 NGX_HTTP_INTERNAL_SERVER_ERROR); |
|
4ab852b691f5
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diff
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|
1234 return; |
|
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diff
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|
1235 } |
|
4ab852b691f5
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diff
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|
1236 |
|
4ab852b691f5
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parents:
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diff
changeset
|
1237 if (u->buffer.last - u->buffer.pos >= (ssize_t) u->length) { |
|
4ab852b691f5
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parents:
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diff
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|
1238 if (u->input_filter(u->input_filter_ctx, 0) == NGX_ERROR) { |
|
4ab852b691f5
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parents:
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diff
changeset
|
1239 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
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parents:
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diff
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|
1240 return; |
|
4ab852b691f5
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parents:
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diff
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|
1241 } |
|
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diff
changeset
|
1242 |
|
4ab852b691f5
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changeset
|
1243 ngx_http_upstream_finalize_request(r, u, 0); |
|
4ab852b691f5
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diff
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|
1244 return; |
|
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diff
changeset
|
1245 } |
|
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|
1246 |
|
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changeset
|
1247 rev->handler = ngx_http_upstream_process_body_in_memory; |
|
4ab852b691f5
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diff
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|
1248 |
|
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diff
changeset
|
1249 ngx_http_upstream_process_body_in_memory(rev); |
|
4ab852b691f5
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diff
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|
1250 } |
|
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|
1251 |
|
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changeset
|
1252 |
|
1153
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1253 static ngx_int_t |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1254 ngx_http_upstream_test_connect(ngx_connection_t *c) |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1255 { |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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parents:
1143
diff
changeset
|
1256 int err; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1257 socklen_t len; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1258 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
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1143
diff
changeset
|
1259 #if (NGX_HAVE_KQUEUE) |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1260 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1261 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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parents:
1143
diff
changeset
|
1262 if (c->write->pending_eof) { |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1263 (void) ngx_connection_error(c, c->write->kq_errno, |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1264 "kevent() reported that connect() failed"); |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1265 return NGX_ERROR; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1266 } |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1267 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1268 } else |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1269 #endif |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1270 { |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1271 err = 0; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1272 len = sizeof(int); |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1273 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1274 /* |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1275 * BSDs and Linux return 0 and set a pending error in err |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1276 * Solaris returns -1 and sets errno |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1277 */ |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1278 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1279 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len) |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1280 == -1) |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1281 { |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1282 err = ngx_errno; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1283 } |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1284 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1285 if (err) { |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1286 (void) ngx_connection_error(c, err, "connect() failed"); |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1287 return NGX_ERROR; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1288 } |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1289 } |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1290 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1291 return NGX_OK; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1292 } |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1293 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1294 |
|
777
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1295 static void |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1296 ngx_http_upstream_process_body_in_memory(ngx_event_t *rev) |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1297 { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1298 size_t size; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1299 ssize_t n; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1300 ngx_buf_t *b; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1301 ngx_connection_t *c; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1302 ngx_http_request_t *r; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1303 ngx_http_upstream_t *u; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1304 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1305 c = rev->data; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1306 r = c->data; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1307 u = r->upstream; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1308 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1309 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1310 "http upstream process body on memory"); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1311 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1312 if (rev->timedout) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1313 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1314 ngx_http_upstream_finalize_request(r, u, NGX_ETIMEDOUT); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1315 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1316 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1317 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1318 b = &u->buffer; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1319 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1320 for ( ;; ) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1321 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1322 size = b->end - b->last; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1323 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1324 if (size == 0) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1325 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1326 "upstream buffer is too small to read repsonse"); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1327 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1328 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1329 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1330 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1331 n = c->recv(c, b->last, size); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1332 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1333 if (n == NGX_AGAIN) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1334 break; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1335 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1336 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1337 if (n == 0 || n == NGX_ERROR) { |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1338 ngx_http_upstream_finalize_request(r, u, n); |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1339 return; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1340 } |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1341 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1342 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1343 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1344 return; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1345 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1346 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1347 if (!rev->ready) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1348 break; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1349 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1350 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1351 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1352 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1353 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1354 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1355 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1356 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1357 if (rev->active) { |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1358 ngx_add_timer(rev, u->conf->read_timeout); |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1359 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1360 } else if (rev->timer_set) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1361 ngx_del_timer(rev); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1362 } |
| 681 | 1363 } |
| 1364 | |
| 1365 | |
| 1366 static void | |
| 1367 ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 1368 { | |
| 1369 int tcp_nodelay; | |
| 1370 ssize_t size; | |
| 1371 ngx_int_t rc; | |
| 1372 ngx_event_pipe_t *p; | |
| 1373 ngx_connection_t *c; | |
| 1374 ngx_pool_cleanup_t *cl; | |
| 1375 ngx_pool_cleanup_file_t *clf; | |
| 1376 ngx_http_core_loc_conf_t *clcf; | |
| 1377 | |
| 509 | 1378 rc = ngx_http_send_header(r); |
| 479 | 1379 |
|
1031
bf1785dfb75f
allow the upstream modules to send a header only
Igor Sysoev <igor@sysoev.ru>
parents:
906
diff
changeset
|
1380 if (rc == NGX_ERROR || rc > NGX_OK || r->post_action || r->header_only) { |
| 485 | 1381 ngx_http_upstream_finalize_request(r, u, rc); |
| 479 | 1382 return; |
| 1383 } | |
| 1384 | |
| 1385 u->header_sent = 1; | |
| 1386 | |
| 573 | 1387 if (r->request_body && r->request_body->temp_file) { |
| 563 | 1388 for (cl = r->pool->cleanup; cl; cl = cl->next) { |
| 1389 if (cl->handler == ngx_pool_cleanup_file) { | |
| 1390 clf = cl->data; | |
| 1391 | |
| 1392 if (clf->fd == r->request_body->temp_file->file.fd) { | |
| 1393 cl->handler(clf); | |
| 1394 cl->handler = NULL; | |
| 659 | 1395 r->request_body->temp_file->file.fd = NGX_INVALID_FILE; |
| 563 | 1396 break; |
| 1397 } | |
| 1398 } | |
| 1399 } | |
| 1400 } | |
| 1401 | |
| 583 | 1402 c = r->connection; |
| 1403 | |
| 581 | 1404 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
| 1405 | |
| 649 | 1406 if (!u->buffering) { |
| 581 | 1407 |
| 1408 if (u->input_filter == NULL) { | |
| 1409 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; | |
| 1410 u->input_filter = ngx_http_upstream_non_buffered_filter; | |
| 1411 u->input_filter_ctx = r; | |
| 1412 } | |
| 1413 | |
| 1414 u->peer.connection->read->handler = | |
| 1415 ngx_http_upstream_process_non_buffered_body; | |
| 1416 r->write_event_handler = | |
| 1417 ngx_http_upstream_process_non_buffered_downstream; | |
| 1418 | |
| 1419 r->limit_rate = 0; | |
| 1420 | |
| 1421 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { | |
| 1422 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1423 return; | |
| 1424 } | |
| 1425 | |
| 583 | 1426 if (clcf->tcp_nodelay && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) { |
| 1427 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay"); | |
| 1428 | |
| 1429 tcp_nodelay = 1; | |
| 1430 | |
| 1431 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY, | |
| 1432 (const void *) &tcp_nodelay, sizeof(int)) == -1) | |
| 1433 { | |
| 1434 ngx_connection_error(c, ngx_socket_errno, | |
| 1435 "setsockopt(TCP_NODELAY) failed"); | |
| 1436 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1437 return; | |
| 1438 } | |
| 1439 | |
| 1440 c->tcp_nodelay = NGX_TCP_NODELAY_SET; | |
| 1441 } | |
| 1442 | |
| 581 | 1443 size = u->buffer.last - u->buffer.pos; |
| 1444 | |
| 1445 if (size) { | |
| 1446 u->buffer.last = u->buffer.pos; | |
| 1447 | |
| 1448 if (u->input_filter(u->input_filter_ctx, size) == NGX_ERROR) { | |
| 1449 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1450 return; | |
| 1451 } | |
| 1452 | |
| 583 | 1453 ngx_http_upstream_process_non_buffered_body(c->write); |
| 581 | 1454 |
| 1455 } else { | |
| 1456 u->buffer.pos = u->buffer.start; | |
| 1457 u->buffer.last = u->buffer.start; | |
| 1458 | |
| 1459 if (ngx_http_send_special(r, NGX_HTTP_FLUSH) == NGX_ERROR) { | |
| 1460 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1461 return; | |
| 1462 } | |
| 1463 } | |
| 1464 | |
| 1465 return; | |
| 1466 } | |
| 1467 | |
| 479 | 1468 /* TODO: preallocate event_pipe bufs, look "Content-Length" */ |
| 1469 | |
| 1470 #if 0 | |
| 1471 | |
| 1472 if (u->cache && u->cache->ctx.file.fd != NGX_INVALID_FILE) { | |
| 1473 if (ngx_close_file(u->cache->ctx.file.fd) == NGX_FILE_ERROR) { | |
| 583 | 1474 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
| 479 | 1475 ngx_close_file_n " \"%s\" failed", |
| 1476 u->cache->ctx.file.name.data); | |
| 1477 } | |
| 1478 } | |
| 1479 | |
| 1480 if (u->cachable) { | |
| 581 | 1481 header = (ngx_http_cache_header_t *) u->buffer->start; |
| 479 | 1482 |
| 1483 header->expires = u->cache->ctx.expires; | |
| 1484 header->last_modified = u->cache->ctx.last_modified; | |
| 1485 header->date = u->cache->ctx.date; | |
| 1486 header->length = r->headers_out.content_length_n; | |
| 1487 u->cache->ctx.length = r->headers_out.content_length_n; | |
| 1488 | |
| 1489 header->key_len = u->cache->ctx.key0.len; | |
| 1490 ngx_memcpy(&header->key, u->cache->ctx.key0.data, header->key_len); | |
| 1491 header->key[header->key_len] = LF; | |
| 1492 } | |
| 1493 | |
| 1494 #endif | |
| 1495 | |
| 581 | 1496 p = u->pipe; |
| 479 | 1497 |
| 1498 p->output_filter = (ngx_event_pipe_output_filter_pt) ngx_http_output_filter; | |
| 1499 p->output_ctx = r; | |
| 1500 p->tag = u->output.tag; | |
| 577 | 1501 p->bufs = u->conf->bufs; |
| 479 | 1502 p->busy_size = u->conf->busy_buffers_size; |
| 1503 p->upstream = u->peer.connection; | |
| 583 | 1504 p->downstream = c; |
| 479 | 1505 p->pool = r->pool; |
| 583 | 1506 p->log = c->log; |
| 577 | 1507 |
| 479 | 1508 p->cachable = u->cachable; |
| 1509 | |
| 501 | 1510 p->temp_file = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t)); |
| 1511 if (p->temp_file == NULL) { | |
| 479 | 1512 ngx_http_upstream_finalize_request(r, u, 0); |
| 1513 return; | |
| 1514 } | |
| 1515 | |
| 1516 p->temp_file->file.fd = NGX_INVALID_FILE; | |
| 583 | 1517 p->temp_file->file.log = c->log; |
| 479 | 1518 p->temp_file->path = u->conf->temp_path; |
| 1519 p->temp_file->pool = r->pool; | |
| 577 | 1520 |
| 479 | 1521 if (u->cachable) { |
| 1522 p->temp_file->persistent = 1; | |
| 1523 } else { | |
| 667 | 1524 p->temp_file->log_level = NGX_LOG_WARN; |
| 479 | 1525 p->temp_file->warn = "an upstream response is buffered " |
| 1526 "to a temporary file"; | |
| 1527 } | |
| 1528 | |
| 1529 p->max_temp_file_size = u->conf->max_temp_file_size; | |
| 1530 p->temp_file_write_size = u->conf->temp_file_write_size; | |
| 1531 | |
| 501 | 1532 p->preread_bufs = ngx_alloc_chain_link(r->pool); |
| 1533 if (p->preread_bufs == NULL) { | |
| 479 | 1534 ngx_http_upstream_finalize_request(r, u, 0); |
| 1535 return; | |
| 1536 } | |
| 581 | 1537 p->preread_bufs->buf = &u->buffer; |
| 479 | 1538 p->preread_bufs->next = NULL; |
| 581 | 1539 u->buffer.recycled = 1; |
| 1540 | |
| 1541 p->preread_size = u->buffer.last - u->buffer.pos; | |
| 479 | 1542 |
| 1543 if (u->cachable) { | |
| 1544 p->buf_to_file = ngx_calloc_buf(r->pool); | |
| 1545 if (p->buf_to_file == NULL) { | |
| 1546 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1547 return; | |
| 1548 } | |
| 581 | 1549 p->buf_to_file->pos = u->buffer.start; |
| 1550 p->buf_to_file->last = u->buffer.pos; | |
| 479 | 1551 p->buf_to_file->temporary = 1; |
| 1552 } | |
| 1553 | |
| 1554 if (ngx_event_flags & NGX_USE_AIO_EVENT) { | |
| 1555 /* the posted aio operation may currupt a shadow buffer */ | |
| 1556 p->single_buf = 1; | |
| 1557 } | |
| 1558 | |
| 1559 /* TODO: p->free_bufs = 0 if use ngx_create_chain_of_bufs() */ | |
| 1560 p->free_bufs = 1; | |
| 1561 | |
| 1562 /* | |
| 581 | 1563 * event_pipe would do u->buffer.last += p->preread_size |
| 479 | 1564 * as though these bytes were read |
| 1565 */ | |
| 581 | 1566 u->buffer.last = u->buffer.pos; |
| 479 | 1567 |
| 1568 if (u->conf->cyclic_temp_file) { | |
| 1569 | |
| 1570 /* | |
| 1571 * we need to disable the use of sendfile() if we use cyclic temp file | |
| 1572 * because the writing a new data may interfere with sendfile() | |
| 1573 * that uses the same kernel file pages (at least on FreeBSD) | |
| 1574 */ | |
| 1575 | |
| 1576 p->cyclic_temp_file = 1; | |
| 583 | 1577 c->sendfile = 0; |
| 479 | 1578 |
| 1579 } else { | |
| 1580 p->cyclic_temp_file = 0; | |
| 1581 } | |
| 1582 | |
| 1583 p->read_timeout = u->conf->read_timeout; | |
| 1584 p->send_timeout = clcf->send_timeout; | |
| 1585 p->send_lowat = clcf->send_lowat; | |
| 1586 | |
| 509 | 1587 u->peer.connection->read->handler = ngx_http_upstream_process_body; |
| 1588 r->write_event_handler = ngx_http_upstream_process_downstream; | |
| 479 | 1589 |
| 1590 ngx_http_upstream_process_body(u->peer.connection->read); | |
| 1591 } | |
| 1592 | |
| 1593 | |
| 487 | 1594 static void |
| 581 | 1595 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r) |
| 1596 { | |
| 1597 ngx_http_upstream_process_non_buffered_body(r->connection->write); | |
| 1598 } | |
| 1599 | |
| 1600 | |
| 1601 static void | |
| 1602 ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev) | |
| 1603 { | |
| 1604 size_t size; | |
| 1605 ssize_t n; | |
| 1606 ngx_buf_t *b; | |
| 583 | 1607 ngx_int_t rc; |
| 581 | 1608 ngx_uint_t do_write; |
| 884 | 1609 ngx_connection_t *c, *downstream, *upstream; |
| 581 | 1610 ngx_http_request_t *r; |
| 1611 ngx_http_upstream_t *u; | |
| 1612 ngx_http_core_loc_conf_t *clcf; | |
| 1613 | |
| 1614 c = ev->data; | |
|
756
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Igor Sysoev <igor@sysoev.ru>
parents:
755
diff
changeset
|
1615 r = c->data; |
|
d904b5cb3bba
fix building introduced by previous commit
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parents:
755
diff
changeset
|
1616 u = r->upstream; |
| 581 | 1617 |
| 1618 if (ev->write) { | |
| 1619 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1620 "http upstream process non buffered downstream"); | |
| 1621 c->log->action = "sending to client"; | |
| 1622 | |
| 1623 } else { | |
| 1624 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1625 "http upstream process non buffered upstream"); | |
| 1626 c->log->action = "reading upstream"; | |
| 1627 } | |
| 1628 | |
| 1629 if (ev->timedout) { | |
| 1630 if (ev->write) { | |
| 1631 c->timedout = 1; | |
| 611 | 1632 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
| 1633 | |
| 581 | 1634 } else { |
| 611 | 1635 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
| 581 | 1636 } |
|
755
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finalize nonbuffered request on timeout
Igor Sysoev <igor@sysoev.ru>
parents:
751
diff
changeset
|
1637 |
|
63b9dc652c3d
finalize nonbuffered request on timeout
Igor Sysoev <igor@sysoev.ru>
parents:
751
diff
changeset
|
1638 ngx_http_upstream_finalize_request(r, u, 0); |
|
63b9dc652c3d
finalize nonbuffered request on timeout
Igor Sysoev <igor@sysoev.ru>
parents:
751
diff
changeset
|
1639 return; |
| 581 | 1640 } |
| 1641 | |
| 884 | 1642 downstream = r->connection; |
| 1643 upstream = u->peer.connection; | |
| 581 | 1644 |
| 1645 b = &u->buffer; | |
| 1646 | |
| 1647 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 1648 | |
| 657 | 1649 do_write = ev->write || u->length == 0; |
| 581 | 1650 |
| 1651 for ( ;; ) { | |
| 1652 | |
| 1653 if (do_write) { | |
| 1654 | |
| 1655 if (u->out_bufs || u->busy_bufs) { | |
| 583 | 1656 rc = ngx_http_output_filter(r, u->out_bufs); |
| 1657 | |
| 884 | 1658 if (downstream->destroyed) { |
| 583 | 1659 return; |
| 1660 } | |
| 1661 | |
| 1662 if (rc == NGX_ERROR) { | |
| 581 | 1663 ngx_http_upstream_finalize_request(r, u, 0); |
| 1664 return; | |
| 1665 } | |
| 1666 | |
| 1667 ngx_chain_update_chains(&u->free_bufs, &u->busy_bufs, | |
| 1668 &u->out_bufs, u->output.tag); | |
| 1669 } | |
| 1670 | |
| 1671 if (u->busy_bufs == NULL) { | |
| 1672 | |
| 1673 if (u->length == 0 | |
| 884 | 1674 || upstream->read->eof |
| 1675 || upstream->read->error) | |
| 581 | 1676 { |
| 1677 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1678 return; | |
| 1679 } | |
| 1680 | |
| 1681 b->pos = b->start; | |
| 1682 b->last = b->start; | |
| 1683 } | |
| 1684 } | |
| 1685 | |
| 1686 size = b->end - b->last; | |
| 1687 | |
| 1688 if (size > u->length) { | |
| 1689 size = u->length; | |
| 1690 } | |
| 1691 | |
| 884 | 1692 if (size && upstream->read->ready) { |
| 1693 | |
| 1694 n = upstream->recv(upstream, b->last, size); | |
| 581 | 1695 |
| 1696 if (n == NGX_AGAIN) { | |
| 1697 break; | |
| 1698 } | |
| 1699 | |
| 1700 if (n > 0) { | |
| 1701 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { | |
| 1702 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1703 return; | |
| 1704 } | |
| 1705 } | |
| 1706 | |
| 1707 do_write = 1; | |
| 1708 | |
| 1709 continue; | |
| 1710 } | |
| 1711 | |
| 1712 break; | |
| 1713 } | |
| 1714 | |
| 884 | 1715 if (downstream->data == r) { |
| 1716 if (ngx_handle_write_event(downstream->write, clcf->send_lowat) | |
| 583 | 1717 == NGX_ERROR) |
| 1718 { | |
| 1719 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1720 return; | |
| 1721 } | |
| 581 | 1722 } |
| 1723 | |
|
1063
e2a6ecc5a3ae
a non-active client connection must not closed after send timeout
Igor Sysoev <igor@sysoev.ru>
parents:
1031
diff
changeset
|
1724 if (downstream->write->active && !downstream->write->ready) { |
| 884 | 1725 ngx_add_timer(downstream->write, clcf->send_timeout); |
| 1726 | |
| 1727 } else if (downstream->write->timer_set) { | |
| 1728 ngx_del_timer(downstream->write); | |
| 581 | 1729 } |
| 1730 | |
| 884 | 1731 if (ngx_handle_read_event(upstream->read, 0) == NGX_ERROR) { |
| 581 | 1732 ngx_http_upstream_finalize_request(r, u, 0); |
| 1733 return; | |
| 1734 } | |
| 1735 | |
|
1063
e2a6ecc5a3ae
a non-active client connection must not closed after send timeout
Igor Sysoev <igor@sysoev.ru>
parents:
1031
diff
changeset
|
1736 if (upstream->read->active && !upstream->read->ready) { |
| 884 | 1737 ngx_add_timer(upstream->read, u->conf->read_timeout); |
| 1738 | |
| 1739 } else if (upstream->read->timer_set) { | |
| 1740 ngx_del_timer(upstream->read); | |
| 581 | 1741 } |
| 1742 } | |
| 1743 | |
| 1744 | |
| 1745 static ngx_int_t | |
| 1746 ngx_http_upstream_non_buffered_filter_init(void *data) | |
| 1747 { | |
| 1748 return NGX_OK; | |
| 1749 } | |
| 1750 | |
| 1751 | |
| 1752 static ngx_int_t | |
| 1753 ngx_http_upstream_non_buffered_filter(void *data, ssize_t bytes) | |
| 1754 { | |
| 1755 ngx_http_request_t *r = data; | |
| 1756 | |
| 1757 ngx_buf_t *b; | |
| 1758 ngx_chain_t *cl, **ll; | |
| 1759 ngx_http_upstream_t *u; | |
| 1760 | |
| 1761 u = r->upstream; | |
| 1762 | |
| 1763 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
| 1764 ll = &cl->next; | |
| 1765 } | |
| 1766 | |
| 1767 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
| 1768 if (cl == NULL) { | |
| 1769 return NGX_ERROR; | |
| 1770 } | |
| 1771 | |
| 1772 *ll = cl; | |
| 1773 | |
| 1774 cl->buf->flush = 1; | |
| 1775 cl->buf->memory = 1; | |
| 1776 | |
| 1777 b = &u->buffer; | |
| 1778 | |
| 1779 cl->buf->pos = b->last; | |
| 1780 b->last += bytes; | |
| 1781 cl->buf->last = b->last; | |
| 1782 | |
| 1783 if (u->length == NGX_MAX_SIZE_T_VALUE) { | |
| 1784 return NGX_OK; | |
| 1785 } | |
| 1786 | |
| 1787 u->length -= bytes; | |
| 1788 | |
| 1789 return NGX_OK; | |
| 1790 } | |
| 1791 | |
| 1792 | |
| 1793 static void | |
| 509 | 1794 ngx_http_upstream_process_downstream(ngx_http_request_t *r) |
| 1795 { | |
| 1796 ngx_http_upstream_process_body(r->connection->write); | |
| 1797 } | |
| 1798 | |
| 1799 | |
| 1800 static void | |
| 487 | 1801 ngx_http_upstream_process_body(ngx_event_t *ev) |
| 479 | 1802 { |
| 509 | 1803 ngx_event_pipe_t *p; |
| 583 | 1804 ngx_connection_t *c, *downstream; |
| 1098 | 1805 ngx_http_log_ctx_t *ctx; |
| 479 | 1806 ngx_http_request_t *r; |
| 1807 ngx_http_upstream_t *u; | |
| 1808 | |
| 1809 c = ev->data; | |
| 1810 r = c->data; | |
| 1811 u = r->upstream; | |
| 583 | 1812 downstream = r->connection; |
| 479 | 1813 |
| 1814 if (ev->write) { | |
| 483 | 1815 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1816 "http upstream process downstream"); | |
| 1817 c->log->action = "sending to client"; | |
| 577 | 1818 |
| 479 | 1819 } else { |
| 483 | 1820 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1821 "http upstream process upstream"); | |
| 1822 c->log->action = "reading upstream"; | |
| 1098 | 1823 |
| 1824 ctx = c->log->data; | |
| 1825 ctx->current_request = r; | |
| 479 | 1826 } |
| 577 | 1827 |
| 581 | 1828 p = u->pipe; |
| 479 | 1829 |
| 1830 if (ev->timedout) { | |
| 1831 if (ev->write) { | |
| 527 | 1832 if (ev->delayed) { |
| 1833 | |
| 1834 ev->timedout = 0; | |
| 1835 ev->delayed = 0; | |
| 1836 | |
| 1837 if (!ev->ready) { | |
| 1838 ngx_add_timer(ev, p->send_timeout); | |
| 1839 | |
| 1840 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) | |
| 1841 { | |
| 1842 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1843 return; | |
| 1844 } | |
| 1845 | |
| 1846 return; | |
| 1847 } | |
| 1848 | |
| 1849 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { | |
| 583 | 1850 |
| 1851 if (downstream->destroyed) { | |
| 1852 return; | |
| 1853 } | |
| 1854 | |
| 527 | 1855 ngx_http_upstream_finalize_request(r, u, 0); |
| 1856 return; | |
| 1857 } | |
| 1858 | |
| 1859 } else { | |
| 1860 p->downstream_error = 1; | |
| 577 | 1861 c->timedout = 1; |
| 611 | 1862 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
| 527 | 1863 } |
| 479 | 1864 |
| 1865 } else { | |
| 577 | 1866 p->upstream_error = 1; |
| 611 | 1867 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
| 479 | 1868 } |
| 1869 | |
| 1870 } else { | |
| 527 | 1871 if (ev->write && ev->delayed) { |
| 1872 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1873 "http downstream delayed"); | |
| 1874 | |
| 1875 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) { | |
| 1876 return; | |
| 1877 } | |
| 1878 | |
| 1879 return; | |
| 1880 } | |
| 1881 | |
| 479 | 1882 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { |
| 583 | 1883 |
| 1884 if (downstream->destroyed) { | |
| 1885 return; | |
| 1886 } | |
| 1887 | |
| 479 | 1888 ngx_http_upstream_finalize_request(r, u, 0); |
| 1889 return; | |
| 1890 } | |
| 1891 } | |
| 577 | 1892 |
| 479 | 1893 if (u->peer.connection) { |
| 1894 | |
| 1895 #if (NGX_HTTP_FILE_CACHE) | |
| 1896 | |
| 1897 if (p->upstream_done && u->cachable) { | |
| 1898 if (ngx_http_cache_update(r) == NGX_ERROR) { | |
| 1899 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1900 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1901 return; | |
| 1902 } | |
| 1903 | |
| 1904 } else if (p->upstream_eof && u->cachable) { | |
| 1905 | |
| 1906 /* TODO: check length & update cache */ | |
| 1907 | |
| 1908 if (ngx_http_cache_update(r) == NGX_ERROR) { | |
| 1909 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1910 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1911 return; | |
| 1912 } | |
| 1913 } | |
| 1914 | |
| 1915 #endif | |
| 1916 | |
| 1917 if (p->upstream_done || p->upstream_eof || p->upstream_error) { | |
| 483 | 1918 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1919 "http upstream exit: %p", p->out); | |
| 479 | 1920 #if 0 |
| 1921 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1922 #endif | |
| 1923 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1924 return; | |
| 1925 } | |
| 1926 } | |
| 1927 | |
| 1928 if (p->downstream_error) { | |
| 483 | 1929 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1930 "http upstream downstream error"); | |
| 479 | 1931 |
| 1932 if (!u->cachable && u->peer.connection) { | |
| 1933 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1934 } | |
| 1935 } | |
| 1936 } | |
| 1937 | |
| 1938 | |
| 487 | 1939 static void |
| 1940 ngx_http_upstream_dummy_handler(ngx_event_t *wev) | |
| 479 | 1941 { |
| 1942 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
| 1943 "http upstream dummy handler"); | |
| 1944 } | |
| 1945 | |
| 1946 | |
| 487 | 1947 static void |
| 1948 ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u, | |
| 1949 ngx_uint_t ft_type) | |
| 479 | 1950 { |
| 884 | 1951 ngx_uint_t status, state; |
| 479 | 1952 |
| 1953 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 884 | 1954 "http next upstream, %xi", ft_type); |
| 479 | 1955 |
| 1956 #if 0 | |
| 1957 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1958 #endif | |
| 1959 | |
| 525 | 1960 if (ft_type == NGX_HTTP_UPSTREAM_FT_HTTP_404) { |
| 884 | 1961 state = NGX_PEER_NEXT; |
| 525 | 1962 } else { |
| 884 | 1963 state = NGX_PEER_FAILED; |
| 479 | 1964 } |
| 525 | 1965 |
| 884 | 1966 u->peer.free(&u->peer, u->peer.data, state); |
| 525 | 1967 |
| 479 | 1968 if (ft_type == NGX_HTTP_UPSTREAM_FT_TIMEOUT) { |
| 1969 ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_ETIMEDOUT, | |
| 1970 "upstream timed out"); | |
| 1971 } | |
| 577 | 1972 |
| 479 | 1973 if (u->peer.cached && ft_type == NGX_HTTP_UPSTREAM_FT_ERROR) { |
| 1974 status = 0; | |
| 1975 | |
| 1976 } else { | |
| 1977 switch(ft_type) { | |
| 1978 | |
| 1979 case NGX_HTTP_UPSTREAM_FT_TIMEOUT: | |
| 1980 status = NGX_HTTP_GATEWAY_TIME_OUT; | |
| 1981 break; | |
| 1982 | |
| 1983 case NGX_HTTP_UPSTREAM_FT_HTTP_500: | |
| 1984 status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 1985 break; | |
| 1986 | |
| 1987 case NGX_HTTP_UPSTREAM_FT_HTTP_404: | |
| 1988 status = NGX_HTTP_NOT_FOUND; | |
| 1989 break; | |
| 1990 | |
| 1991 /* | |
| 1992 * NGX_HTTP_UPSTREAM_FT_BUSY_LOCK and NGX_HTTP_UPSTREAM_FT_MAX_WAITING | |
| 1993 * never reach here | |
| 1994 */ | |
| 1995 | |
| 1996 default: | |
| 1997 status = NGX_HTTP_BAD_GATEWAY; | |
| 1998 } | |
| 1999 } | |
| 2000 | |
| 583 | 2001 if (r->connection->error) { |
| 479 | 2002 ngx_http_upstream_finalize_request(r, u, |
| 2003 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 2004 return; | |
| 2005 } | |
| 2006 | |
| 2007 if (status) { | |
| 2008 u->state->status = status; | |
| 2009 | |
| 525 | 2010 if (u->peer.tries == 0 || !(u->conf->next_upstream & ft_type)) { |
| 479 | 2011 |
| 2012 #if (NGX_HTTP_CACHE) | |
| 2013 | |
| 2014 if (u->stale && (u->conf->use_stale & ft_type)) { | |
| 2015 ngx_http_upstream_finalize_request(r, u, | |
| 525 | 2016 ngx_http_send_cached_response(r)); |
| 479 | 2017 return; |
| 2018 } | |
| 2019 | |
| 2020 #endif | |
| 2021 | |
| 2022 ngx_http_upstream_finalize_request(r, u, status); | |
| 2023 return; | |
| 2024 } | |
| 2025 } | |
| 2026 | |
| 2027 if (u->peer.connection) { | |
| 2028 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2029 "close http upstream connection: %d", | |
| 2030 u->peer.connection->fd); | |
| 577 | 2031 #if (NGX_HTTP_SSL) |
| 884 | 2032 |
| 577 | 2033 if (u->peer.connection->ssl) { |
| 884 | 2034 u->peer.connection->ssl->no_wait_shutdown = 1; |
| 2035 u->peer.connection->ssl->no_send_shutdown = 1; | |
| 2036 | |
| 2037 (void) ngx_ssl_shutdown(u->peer.connection); | |
| 577 | 2038 } |
| 2039 #endif | |
| 884 | 2040 |
| 479 | 2041 ngx_close_connection(u->peer.connection); |
| 2042 } | |
| 2043 | |
| 2044 #if 0 | |
| 2045 if (u->conf->busy_lock && !u->busy_locked) { | |
| 2046 ngx_http_upstream_busy_lock(p); | |
| 2047 return; | |
| 2048 } | |
| 2049 #endif | |
| 2050 | |
| 2051 ngx_http_upstream_connect(r, u); | |
| 2052 } | |
| 2053 | |
| 2054 | |
| 487 | 2055 static void |
| 569 | 2056 ngx_http_upstream_cleanup(void *data) |
| 2057 { | |
| 2058 ngx_http_request_t *r = data; | |
| 2059 | |
| 2060 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2061 "cleanup http upstream request: \"%V\"", &r->uri); | |
| 2062 | |
| 2063 ngx_http_upstream_finalize_request(r, r->upstream, NGX_DONE); | |
| 2064 } | |
| 2065 | |
| 2066 | |
| 2067 static void | |
| 487 | 2068 ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
| 2069 ngx_http_upstream_t *u, ngx_int_t rc) | |
| 479 | 2070 { |
|
889
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the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2071 ngx_time_t *tp; |
| 563 | 2072 |
| 483 | 2073 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| 2074 "finalize http upstream request: %i", rc); | |
| 479 | 2075 |
| 569 | 2076 *u->cleanup = NULL; |
| 2077 | |
|
889
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the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2078 if (u->state->response_sec) { |
| 563 | 2079 tp = ngx_timeofday(); |
|
889
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the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2080 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
|
2081 u->state->response_msec = tp->msec - u->state->response_msec; |
| 563 | 2082 } |
| 2083 | |
| 479 | 2084 u->finalize_request(r, rc); |
| 2085 | |
| 884 | 2086 u->peer.free(&u->peer, u->peer.data, 0); |
| 2087 | |
| 479 | 2088 if (u->peer.connection) { |
| 884 | 2089 |
| 577 | 2090 #if (NGX_HTTP_SSL) |
| 2091 | |
| 2092 /* TODO: do not shutdown persistent connection */ | |
| 2093 | |
| 2094 if (u->peer.connection->ssl) { | |
| 884 | 2095 |
| 2096 /* | |
| 2097 * We send the "close notify" shutdown alert to the upstream only | |
| 2098 * and do not wait its "close notify" shutdown alert. | |
| 2099 * It is acceptable according to the TLS standard. | |
| 2100 */ | |
| 2101 | |
| 2102 u->peer.connection->ssl->no_wait_shutdown = 1; | |
| 2103 | |
| 2104 (void) ngx_ssl_shutdown(u->peer.connection); | |
| 577 | 2105 } |
| 2106 #endif | |
| 884 | 2107 |
| 2108 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2109 "close http upstream connection: %d", | |
| 2110 u->peer.connection->fd); | |
| 2111 | |
| 479 | 2112 ngx_close_connection(u->peer.connection); |
| 2113 } | |
| 2114 | |
| 483 | 2115 u->peer.connection = NULL; |
| 2116 | |
| 563 | 2117 if (u->header_sent && (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE)) |
| 479 | 2118 { |
| 2119 rc = 0; | |
| 2120 } | |
| 2121 | |
| 581 | 2122 if (u->pipe && u->pipe->temp_file) { |
| 479 | 2123 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| 2124 "http upstream temp fd: %d", | |
| 581 | 2125 u->pipe->temp_file->file.fd); |
| 479 | 2126 } |
| 2127 | |
| 2128 #if 0 | |
| 2129 if (u->cache) { | |
| 2130 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 483 | 2131 "http upstream cache fd: %d", |
| 479 | 2132 u->cache->ctx.file.fd); |
| 2133 } | |
| 2134 #endif | |
| 2135 | |
| 515 | 2136 if (rc == NGX_DECLINED) { |
| 2137 return; | |
| 2138 } | |
| 2139 | |
| 483 | 2140 r->connection->log->action = "sending to client"; |
| 2141 | |
| 629 | 2142 if (rc == 0 && r == r->main && !r->post_action) { |
| 581 | 2143 rc = ngx_http_send_special(r, NGX_HTTP_LAST); |
| 479 | 2144 } |
| 2145 | |
| 2146 ngx_http_finalize_request(r, rc); | |
| 2147 } | |
| 2148 | |
| 2149 | |
| 509 | 2150 static ngx_int_t |
| 2151 ngx_http_upstream_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2152 ngx_uint_t offset) | |
| 577 | 2153 { |
| 509 | 2154 ngx_table_elt_t **ph; |
| 577 | 2155 |
| 509 | 2156 ph = (ngx_table_elt_t **) ((char *) &r->upstream->headers_in + offset); |
| 2157 | |
| 2158 if (*ph == NULL) { | |
| 2159 *ph = h; | |
| 2160 } | |
| 2161 | |
| 2162 return NGX_OK; | |
| 2163 } | |
| 2164 | |
| 2165 | |
| 2166 static ngx_int_t | |
| 2167 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
| 2168 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2169 { | |
| 2170 ngx_array_t *pa; | |
| 2171 ngx_table_elt_t **ph; | |
| 2172 | |
| 2173 pa = (ngx_array_t *) ((char *) &r->upstream->headers_in + offset); | |
| 2174 | |
| 2175 if (pa->elts == NULL) { | |
| 2176 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
| 2177 { | |
| 2178 return NGX_ERROR; | |
| 2179 } | |
| 2180 } | |
| 2181 | |
| 2182 ph = ngx_array_push(pa); | |
| 2183 if (ph == NULL) { | |
| 2184 return NGX_ERROR; | |
| 2185 } | |
| 2186 | |
| 2187 *ph = h; | |
| 2188 | |
| 2189 return NGX_OK; | |
| 2190 } | |
| 2191 | |
| 2192 | |
| 2193 static ngx_int_t | |
| 2194 ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2195 ngx_uint_t offset) | |
| 2196 { | |
| 2197 return NGX_OK; | |
| 2198 } | |
| 2199 | |
| 2200 | |
| 2201 static ngx_int_t | |
| 527 | 2202 ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2203 ngx_uint_t offset) | |
| 577 | 2204 { |
| 527 | 2205 ngx_int_t n; |
| 2206 | |
| 2207 r->upstream->headers_in.x_accel_limit_rate = h; | |
| 2208 | |
| 2209 n = ngx_atoi(h->value.data, h->value.len); | |
| 2210 | |
| 2211 if (n != NGX_ERROR) { | |
| 2212 r->limit_rate = (size_t) n; | |
| 2213 } | |
| 2214 | |
| 2215 return NGX_OK; | |
| 2216 } | |
| 2217 | |
| 2218 | |
| 2219 static ngx_int_t | |
| 649 | 2220 ngx_http_upstream_process_buffering(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2221 ngx_uint_t offset) | |
| 2222 { | |
| 2223 u_char c0, c1, c2; | |
| 2224 | |
| 2225 if (r->upstream->conf->change_buffering) { | |
| 2226 | |
| 2227 if (h->value.len == 2) { | |
| 2228 c0 = ngx_tolower(h->value.data[0]); | |
| 2229 c1 = ngx_tolower(h->value.data[1]); | |
| 2230 | |
| 2231 if (c0 == 'n' && c1 == 'o') { | |
| 2232 r->upstream->buffering = 0; | |
| 2233 } | |
| 2234 | |
| 2235 } else if (h->value.len == 3) { | |
| 2236 c0 = ngx_tolower(h->value.data[0]); | |
| 2237 c1 = ngx_tolower(h->value.data[1]); | |
| 2238 c2 = ngx_tolower(h->value.data[2]); | |
| 2239 | |
| 2240 if (c0 == 'y' && c1 == 'e' && c2 == 's') { | |
| 2241 r->upstream->buffering = 1; | |
| 2242 } | |
| 2243 } | |
| 2244 } | |
| 2245 | |
| 2246 return NGX_OK; | |
| 2247 } | |
| 2248 | |
| 2249 | |
| 2250 static ngx_int_t | |
| 657 | 2251 ngx_http_upstream_process_charset(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2252 ngx_uint_t offset) | |
| 2253 { | |
| 2254 r->headers_out.override_charset = &h->value; | |
| 2255 | |
| 2256 return NGX_OK; | |
| 2257 } | |
| 2258 | |
| 2259 | |
| 2260 static ngx_int_t | |
| 509 | 2261 ngx_http_upstream_copy_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2262 ngx_uint_t offset) | |
| 2263 { | |
| 573 | 2264 ngx_table_elt_t *ho, **ph; |
| 509 | 2265 |
| 2266 ho = ngx_list_push(&r->headers_out.headers); | |
| 2267 if (ho == NULL) { | |
| 2268 return NGX_ERROR; | |
| 2269 } | |
| 2270 | |
| 2271 *ho = *h; | |
| 2272 | |
| 573 | 2273 if (offset) { |
| 2274 ph = (ngx_table_elt_t **) ((char *) &r->headers_out + offset); | |
| 2275 *ph = ho; | |
| 2276 } | |
| 2277 | |
| 509 | 2278 return NGX_OK; |
| 2279 } | |
| 2280 | |
| 2281 | |
| 2282 static ngx_int_t | |
| 2283 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r, | |
| 2284 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2285 { | |
| 2286 ngx_array_t *pa; | |
| 2287 ngx_table_elt_t *ho, **ph; | |
| 2288 | |
| 2289 pa = (ngx_array_t *) ((char *) &r->headers_out + offset); | |
| 2290 | |
| 2291 if (pa->elts == NULL) { | |
| 2292 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
| 2293 { | |
| 2294 return NGX_ERROR; | |
| 2295 } | |
| 2296 } | |
| 2297 | |
| 2298 ph = ngx_array_push(pa); | |
| 2299 if (ph == NULL) { | |
| 2300 return NGX_ERROR; | |
| 2301 } | |
| 2302 | |
| 2303 ho = ngx_list_push(&r->headers_out.headers); | |
| 2304 if (ho == NULL) { | |
| 2305 return NGX_ERROR; | |
| 2306 } | |
| 2307 | |
| 2308 *ho = *h; | |
| 2309 *ph = ho; | |
| 2310 | |
| 2311 return NGX_OK; | |
| 2312 } | |
| 2313 | |
| 2314 | |
| 2315 static ngx_int_t | |
| 2316 ngx_http_upstream_copy_content_type(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2317 ngx_uint_t offset) | |
| 2318 { | |
| 657 | 2319 u_char *p, *last; |
| 2320 | |
| 2321 r->headers_out.content_type_len = h->value.len; | |
| 509 | 2322 r->headers_out.content_type = h->value; |
| 2323 | |
| 657 | 2324 for (p = h->value.data; *p; p++) { |
| 2325 | |
| 2326 if (*p != ';') { | |
| 2327 continue; | |
| 2328 } | |
| 2329 | |
| 2330 last = p; | |
| 2331 | |
| 2332 while (*++p == ' ') { /* void */ } | |
| 2333 | |
|
1107
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
1098
diff
changeset
|
2334 if (ngx_strncasecmp(p, (u_char *) "charset=", 8) != 0) { |
| 657 | 2335 continue; |
| 2336 } | |
| 2337 | |
| 2338 p += 8; | |
| 2339 | |
| 2340 r->headers_out.content_type_len = last - h->value.data; | |
| 2341 | |
| 2342 r->headers_out.charset.len = h->value.data + h->value.len - p; | |
| 2343 r->headers_out.charset.data = p; | |
|
1143
c6c42497106c
fix segfault if upstream sends trailing ";" in "charset="
Igor Sysoev <igor@sysoev.ru>
parents:
1109
diff
changeset
|
2344 |
|
c6c42497106c
fix segfault if upstream sends trailing ";" in "charset="
Igor Sysoev <igor@sysoev.ru>
parents:
1109
diff
changeset
|
2345 return NGX_OK; |
| 657 | 2346 } |
| 2347 | |
| 509 | 2348 return NGX_OK; |
| 2349 } | |
| 2350 | |
| 2351 | |
| 2352 static ngx_int_t | |
| 2353 ngx_http_upstream_copy_content_length(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2354 ngx_uint_t offset) | |
| 2355 { | |
| 2356 ngx_table_elt_t *ho; | |
| 2357 | |
| 2358 ho = ngx_list_push(&r->headers_out.headers); | |
| 2359 if (ho == NULL) { | |
| 2360 return NGX_ERROR; | |
| 2361 } | |
| 2362 | |
| 2363 *ho = *h; | |
| 2364 | |
| 2365 r->headers_out.content_length = ho; | |
| 2366 r->headers_out.content_length_n = ngx_atoof(h->value.data, h->value.len); | |
| 2367 | |
| 2368 return NGX_OK; | |
| 2369 } | |
| 2370 | |
| 2371 | |
| 2372 static ngx_int_t | |
| 2373 ngx_http_upstream_rewrite_location(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2374 ngx_uint_t offset) | |
| 2375 { | |
| 2376 ngx_int_t rc; | |
| 2377 ngx_table_elt_t *ho; | |
| 2378 | |
| 2379 ho = ngx_list_push(&r->headers_out.headers); | |
| 2380 if (ho == NULL) { | |
| 2381 return NGX_ERROR; | |
| 2382 } | |
| 2383 | |
| 2384 *ho = *h; | |
| 2385 | |
| 2386 if (r->upstream->rewrite_redirect) { | |
| 2387 rc = r->upstream->rewrite_redirect(r, ho, 0); | |
| 2388 | |
| 529 | 2389 if (rc == NGX_DECLINED) { |
| 2390 return NGX_OK; | |
| 2391 } | |
| 2392 | |
| 509 | 2393 if (rc == NGX_OK) { |
| 2394 r->headers_out.location = ho; | |
| 2395 | |
| 2396 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2397 "rewritten location: \"%V\"", &ho->value); | |
| 2398 } | |
| 2399 | |
| 2400 return rc; | |
| 2401 } | |
| 2402 | |
| 2403 /* | |
| 2404 * we do not set r->headers_out.location here to avoid the handling | |
| 2405 * the local redirects without a host name by ngx_http_header_filter() | |
| 2406 */ | |
| 2407 | |
| 2408 return NGX_OK; | |
| 2409 } | |
| 2410 | |
| 2411 | |
| 2412 static ngx_int_t | |
| 2413 ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2414 ngx_uint_t offset) | |
| 2415 { | |
| 2416 u_char *p; | |
| 2417 ngx_int_t rc; | |
| 2418 ngx_table_elt_t *ho; | |
| 2419 | |
| 2420 ho = ngx_list_push(&r->headers_out.headers); | |
| 2421 if (ho == NULL) { | |
| 2422 return NGX_ERROR; | |
| 2423 } | |
| 2424 | |
| 2425 *ho = *h; | |
| 2426 | |
| 2427 if (r->upstream->rewrite_redirect) { | |
| 2428 | |
| 2429 p = (u_char *) ngx_strstr(ho->value.data, "url="); | |
| 2430 | |
| 2431 if (p) { | |
| 2432 rc = r->upstream->rewrite_redirect(r, ho, p + 4 - ho->value.data); | |
| 2433 | |
| 2434 } else { | |
| 2435 return NGX_OK; | |
| 2436 } | |
| 2437 | |
| 529 | 2438 if (rc == NGX_DECLINED) { |
| 2439 return NGX_OK; | |
| 2440 } | |
| 2441 | |
| 509 | 2442 #if (NGX_DEBUG) |
| 2443 if (rc == NGX_OK) { | |
| 2444 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2445 "rewritten refresh: \"%V\"", &ho->value); | |
| 2446 } | |
| 2447 #endif | |
| 2448 | |
| 2449 return rc; | |
| 2450 } | |
| 2451 | |
| 2452 return NGX_OK; | |
| 2453 } | |
| 2454 | |
| 2455 | |
| 2456 #if (NGX_HTTP_GZIP) | |
| 2457 | |
| 2458 static ngx_int_t | |
| 2459 ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
| 2460 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2461 { | |
| 2462 ngx_table_elt_t *ho; | |
| 2463 | |
| 2464 ho = ngx_list_push(&r->headers_out.headers); | |
| 2465 if (ho == NULL) { | |
| 2466 return NGX_ERROR; | |
| 2467 } | |
| 2468 | |
| 2469 *ho = *h; | |
| 2470 | |
| 2471 r->headers_out.content_encoding = ho; | |
| 2472 | |
| 2473 return NGX_OK; | |
| 2474 } | |
| 2475 | |
| 2476 #endif | |
| 2477 | |
| 2478 | |
| 487 | 2479 static ngx_int_t |
| 573 | 2480 ngx_http_upstream_add_variables(ngx_conf_t *cf) |
| 479 | 2481 { |
| 880 | 2482 ngx_http_variable_t *var, *v; |
| 479 | 2483 |
| 573 | 2484 for (v = ngx_http_upstream_vars; v->name.len; v++) { |
| 2485 var = ngx_http_add_variable(cf, &v->name, v->flags); | |
| 2486 if (var == NULL) { | |
| 2487 return NGX_ERROR; | |
| 2488 } | |
| 2489 | |
| 637 | 2490 var->get_handler = v->get_handler; |
| 573 | 2491 var->data = v->data; |
| 2492 } | |
| 2493 | |
| 479 | 2494 return NGX_OK; |
| 2495 } | |
| 509 | 2496 |
| 2497 | |
| 573 | 2498 static ngx_int_t |
| 2499 ngx_http_upstream_status_variable(ngx_http_request_t *r, | |
| 2500 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2501 { | |
| 2502 u_char *p; | |
| 2503 size_t len; | |
| 2504 ngx_uint_t i; | |
| 2505 ngx_http_upstream_t *u; | |
| 2506 ngx_http_upstream_state_t *state; | |
| 2507 | |
| 2508 v->valid = 1; | |
| 2509 v->no_cachable = 0; | |
| 2510 v->not_found = 0; | |
| 2511 | |
| 2512 u = r->upstream; | |
| 2513 | |
| 2514 if (u == NULL || u->states.nelts == 0) { | |
| 2515 v->not_found = 1; | |
| 2516 return NGX_OK; | |
| 2517 } | |
| 2518 | |
| 2519 len = u->states.nelts * (3 + 2); | |
| 2520 | |
| 2521 p = ngx_palloc(r->pool, len); | |
| 2522 if (p == NULL) { | |
| 2523 return NGX_ERROR; | |
| 2524 } | |
| 2525 | |
| 2526 v->data = p; | |
| 2527 | |
| 2528 i = 0; | |
| 2529 state = u->states.elts; | |
| 2530 | |
| 2531 for ( ;; ) { | |
| 2532 if (state[i].status == 0) { | |
| 2533 *p++ = '-'; | |
| 2534 | |
| 2535 } else { | |
| 2536 p = ngx_sprintf(p, "%ui", state[i].status); | |
| 2537 } | |
| 2538 | |
| 2539 if (++i == u->states.nelts) { | |
| 2540 break; | |
| 2541 } | |
| 2542 | |
| 2543 *p++ = ','; | |
| 2544 *p++ = ' '; | |
| 2545 } | |
| 2546 | |
| 2547 v->len = p - v->data; | |
| 2548 | |
| 2549 return NGX_OK; | |
| 2550 } | |
| 2551 | |
| 2552 | |
| 2553 static ngx_int_t | |
| 2554 ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
| 2555 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2556 { | |
| 2557 u_char *p; | |
| 2558 size_t len; | |
| 2559 ngx_uint_t i; | |
|
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2560 ngx_msec_int_t ms; |
| 573 | 2561 ngx_http_upstream_t *u; |
| 2562 ngx_http_upstream_state_t *state; | |
| 2563 | |
| 2564 v->valid = 1; | |
| 2565 v->no_cachable = 0; | |
| 2566 v->not_found = 0; | |
| 2567 | |
| 2568 u = r->upstream; | |
| 2569 | |
| 2570 if (u == NULL || u->states.nelts == 0) { | |
| 2571 v->not_found = 1; | |
| 2572 return NGX_OK; | |
| 2573 } | |
| 2574 | |
| 2575 len = u->states.nelts * (NGX_TIME_T_LEN + 4 + 2); | |
| 2576 | |
| 2577 p = ngx_palloc(r->pool, len); | |
| 2578 if (p == NULL) { | |
| 2579 return NGX_ERROR; | |
| 2580 } | |
| 2581 | |
| 2582 v->data = p; | |
| 2583 | |
| 2584 i = 0; | |
| 2585 state = u->states.elts; | |
| 2586 | |
| 2587 for ( ;; ) { | |
| 2588 if (state[i].status == 0) { | |
| 2589 *p++ = '-'; | |
| 2590 | |
| 2591 } else { | |
|
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2592 ms = state[i].response_sec * 1000 + state[i].response_msec; |
|
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2593 ms = (ms >= 0) ? ms : 0; |
|
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2594 p = ngx_sprintf(p, "%d.%03d", ms / 1000, ms % 1000); |
| 573 | 2595 } |
| 2596 | |
| 2597 if (++i == u->states.nelts) { | |
| 2598 break; | |
| 2599 } | |
| 2600 | |
| 2601 *p++ = ','; | |
| 2602 *p++ = ' '; | |
| 2603 } | |
| 2604 | |
| 2605 v->len = p - v->data; | |
| 2606 | |
| 2607 return NGX_OK; | |
| 2608 } | |
| 2609 | |
| 2610 | |
| 651 | 2611 static char * |
| 2612 ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy) | |
| 2613 { | |
| 884 | 2614 char *rv; |
| 2615 void *mconf; | |
| 2616 ngx_str_t *value; | |
| 2617 ngx_url_t u; | |
| 2618 ngx_uint_t m; | |
| 2619 ngx_conf_t pcf; | |
| 2620 ngx_http_module_t *module; | |
| 2621 ngx_http_conf_ctx_t *ctx, *http_ctx; | |
| 2622 ngx_http_upstream_srv_conf_t *uscf; | |
| 2623 | |
| 2624 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 2625 | |
| 2626 value = cf->args->elts; | |
| 2627 u.host = value[1]; | |
| 2628 u.no_resolve = 1; | |
| 2629 | |
| 2630 uscf = ngx_http_upstream_add(cf, &u, NGX_HTTP_UPSTREAM_CREATE | |
| 2631 |NGX_HTTP_UPSTREAM_WEIGHT | |
| 2632 |NGX_HTTP_UPSTREAM_MAX_FAILS | |
| 2633 |NGX_HTTP_UPSTREAM_FAIL_TIMEOUT | |
| 2634 |NGX_HTTP_UPSTREAM_DOWN | |
| 2635 |NGX_HTTP_UPSTREAM_BACKUP); | |
| 2636 if (uscf == NULL) { | |
| 2637 return NGX_CONF_ERROR; | |
| 2638 } | |
| 2639 | |
| 651 | 2640 |
| 2641 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); | |
| 2642 if (ctx == NULL) { | |
| 2643 return NGX_CONF_ERROR; | |
| 2644 } | |
| 2645 | |
| 884 | 2646 http_ctx = cf->ctx; |
| 2647 ctx->main_conf = http_ctx->main_conf; | |
| 651 | 2648 |
| 2649 /* the upstream{}'s srv_conf */ | |
| 2650 | |
| 2651 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 2652 if (ctx->srv_conf == NULL) { | |
| 2653 return NGX_CONF_ERROR; | |
| 2654 } | |
| 2655 | |
| 2656 ctx->srv_conf[ngx_http_upstream_module.ctx_index] = uscf; | |
| 2657 | |
| 884 | 2658 uscf->srv_conf = ctx->srv_conf; |
| 2659 | |
| 651 | 2660 |
| 2661 /* the upstream{}'s loc_conf */ | |
| 2662 | |
| 2663 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 2664 if (ctx->loc_conf == NULL) { | |
| 2665 return NGX_CONF_ERROR; | |
| 2666 } | |
| 2667 | |
| 2668 for (m = 0; ngx_modules[m]; m++) { | |
| 2669 if (ngx_modules[m]->type != NGX_HTTP_MODULE) { | |
| 2670 continue; | |
| 2671 } | |
| 2672 | |
| 2673 module = ngx_modules[m]->ctx; | |
| 2674 | |
| 884 | 2675 if (module->create_srv_conf) { |
| 2676 mconf = module->create_srv_conf(cf); | |
| 2677 if (mconf == NULL) { | |
| 2678 return NGX_CONF_ERROR; | |
| 2679 } | |
| 2680 | |
| 2681 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf; | |
| 2682 } | |
| 2683 | |
| 651 | 2684 if (module->create_loc_conf) { |
| 2685 mconf = module->create_loc_conf(cf); | |
| 2686 if (mconf == NULL) { | |
| 2687 return NGX_CONF_ERROR; | |
| 2688 } | |
| 2689 | |
| 2690 ctx->loc_conf[ngx_modules[m]->ctx_index] = mconf; | |
| 2691 } | |
| 2692 } | |
| 2693 | |
| 2694 | |
| 2695 /* parse inside upstream{} */ | |
| 2696 | |
| 2697 pcf = *cf; | |
| 2698 cf->ctx = ctx; | |
| 2699 cf->cmd_type = NGX_HTTP_UPS_CONF; | |
| 2700 | |
| 2701 rv = ngx_conf_parse(cf, NULL); | |
| 2702 | |
| 2703 *cf = pcf; | |
| 2704 | |
| 2705 if (rv != NGX_CONF_OK) { | |
| 2706 return rv; | |
| 2707 } | |
| 2708 | |
| 2709 if (uscf->servers == NULL) { | |
| 2710 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 2711 "no servers are inside upstream"); | |
| 2712 return NGX_CONF_ERROR; | |
| 2713 } | |
| 2714 | |
| 2715 return rv; | |
| 2716 } | |
| 2717 | |
| 2718 | |
| 2719 static char * | |
| 2720 ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 2721 { | |
| 2722 ngx_http_upstream_srv_conf_t *uscf = conf; | |
| 2723 | |
| 884 | 2724 time_t fail_timeout; |
| 2725 ngx_str_t *value, s; | |
| 2726 ngx_url_t u; | |
| 2727 ngx_int_t weight, max_fails; | |
| 2728 ngx_uint_t i; | |
| 2729 ngx_http_upstream_server_t *us; | |
| 651 | 2730 |
| 2731 if (uscf->servers == NULL) { | |
| 884 | 2732 uscf->servers = ngx_array_create(cf->pool, 4, |
| 2733 sizeof(ngx_http_upstream_server_t)); | |
| 651 | 2734 if (uscf->servers == NULL) { |
| 2735 return NGX_CONF_ERROR; | |
| 2736 } | |
| 2737 } | |
| 2738 | |
| 884 | 2739 us = ngx_array_push(uscf->servers); |
| 2740 if (us == NULL) { | |
| 651 | 2741 return NGX_CONF_ERROR; |
| 2742 } | |
| 2743 | |
| 884 | 2744 ngx_memzero(us, sizeof(ngx_http_upstream_server_t)); |
| 2745 | |
| 651 | 2746 value = cf->args->elts; |
| 2747 | |
| 2748 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 2749 | |
| 2750 u.url = value[1]; | |
| 906 | 2751 u.default_port = 80; |
| 651 | 2752 |
| 2753 if (ngx_parse_url(cf, &u) != NGX_OK) { | |
| 2754 if (u.err) { | |
| 2755 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 2756 "%s in upstream \"%V\"", u.err, &u.url); | |
| 2757 } | |
| 2758 | |
| 2759 return NGX_CONF_ERROR; | |
| 2760 } | |
| 2761 | |
| 663 | 2762 weight = 1; |
| 884 | 2763 max_fails = 1; |
| 2764 fail_timeout = 10; | |
| 2765 | |
| 2766 for (i = 2; i < cf->args->nelts; i++) { | |
| 2767 | |
| 2768 if (ngx_strncmp(value[i].data, "weight=", 7) == 0) { | |
| 2769 | |
| 2770 if (!(uscf->flags & NGX_HTTP_UPSTREAM_WEIGHT)) { | |
| 2771 goto invalid; | |
| 2772 } | |
| 2773 | |
| 2774 weight = ngx_atoi(&value[i].data[7], value[i].len - 7); | |
| 663 | 2775 |
| 2776 if (weight == NGX_ERROR || weight == 0) { | |
| 2777 goto invalid; | |
| 2778 } | |
| 2779 | |
| 884 | 2780 continue; |
| 2781 } | |
| 2782 | |
| 2783 if (ngx_strncmp(value[i].data, "max_fails=", 10) == 0) { | |
| 2784 | |
| 2785 if (!(uscf->flags & NGX_HTTP_UPSTREAM_MAX_FAILS)) { | |
| 2786 goto invalid; | |
| 2787 } | |
| 2788 | |
| 2789 max_fails = ngx_atoi(&value[i].data[10], value[i].len - 10); | |
| 2790 | |
| 2791 if (max_fails == NGX_ERROR) { | |
| 2792 goto invalid; | |
| 2793 } | |
| 2794 | |
| 2795 continue; | |
| 663 | 2796 } |
| 884 | 2797 |
| 2798 if (ngx_strncmp(value[i].data, "fail_timeout=", 13) == 0) { | |
| 2799 | |
| 2800 if (!(uscf->flags & NGX_HTTP_UPSTREAM_FAIL_TIMEOUT)) { | |
| 2801 goto invalid; | |
| 2802 } | |
| 2803 | |
| 2804 s.len = value[i].len - 13; | |
| 2805 s.data = &value[i].data[13]; | |
| 2806 | |
| 2807 fail_timeout = ngx_parse_time(&s, 1); | |
| 2808 | |
| 2809 if (fail_timeout < 0) { | |
| 2810 goto invalid; | |
| 2811 } | |
| 2812 | |
| 2813 continue; | |
| 2814 } | |
| 2815 | |
| 2816 if (ngx_strncmp(value[i].data, "down", 4) == 0) { | |
| 2817 | |
| 2818 if (!(uscf->flags & NGX_HTTP_UPSTREAM_DOWN)) { | |
| 2819 goto invalid; | |
| 2820 } | |
| 2821 | |
| 2822 us->down = 1; | |
| 2823 | |
| 2824 continue; | |
| 2825 } | |
| 2826 | |
| 2827 goto invalid; | |
| 663 | 2828 } |
| 2829 | |
| 884 | 2830 us->addrs = u.addrs; |
| 2831 us->naddrs = u.naddrs; | |
| 2832 us->weight = weight; | |
| 2833 us->max_fails = max_fails; | |
| 2834 us->fail_timeout = fail_timeout; | |
| 651 | 2835 |
| 2836 return NGX_CONF_OK; | |
| 663 | 2837 |
| 2838 invalid: | |
| 2839 | |
| 884 | 2840 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 2841 "invalid parameter \"%V\"", &value[i]); | |
| 663 | 2842 |
| 2843 return NGX_CONF_ERROR; | |
| 651 | 2844 } |
| 2845 | |
| 2846 | |
| 2847 ngx_http_upstream_srv_conf_t * | |
| 884 | 2848 ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags) |
| 651 | 2849 { |
| 2850 ngx_uint_t i; | |
| 884 | 2851 ngx_http_upstream_server_t *us; |
| 651 | 2852 ngx_http_upstream_srv_conf_t *uscf, **uscfp; |
| 2853 ngx_http_upstream_main_conf_t *umcf; | |
| 2854 | |
| 884 | 2855 if (!(flags & NGX_HTTP_UPSTREAM_CREATE)) { |
| 2856 | |
| 651 | 2857 if (ngx_parse_url(cf, u) != NGX_OK) { |
| 2858 if (u->err) { | |
| 2859 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 2860 "%s in upstream \"%V\"", u->err, &u->url); | |
| 2861 } | |
| 2862 | |
| 2863 return NULL; | |
| 2864 } | |
| 2865 } | |
| 2866 | |
| 2867 umcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_upstream_module); | |
| 2868 | |
| 2869 uscfp = umcf->upstreams.elts; | |
| 2870 | |
| 2871 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
| 906 | 2872 |
| 2873 if (uscfp[i]->host.len != u->host.len | |
| 884 | 2874 || ngx_strncasecmp(uscfp[i]->host.data, u->host.data, u->host.len) |
| 2875 != 0) | |
| 2876 { | |
| 651 | 2877 continue; |
| 2878 } | |
| 2879 | |
| 884 | 2880 if ((flags & NGX_HTTP_UPSTREAM_CREATE) |
| 2881 && (uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE)) | |
| 651 | 2882 { |
| 884 | 2883 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 2884 "duplicate upstream \"%V\"", &u->host); | |
| 2885 return NULL; | |
| 651 | 2886 } |
| 884 | 2887 |
| 906 | 2888 if ((uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE) && u->port) { |
| 884 | 2889 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
| 906 | 2890 "upstream \"%V\" may not have port %d", |
| 2891 &u->host, u->port); | |
| 2892 return NULL; | |
| 2893 } | |
| 2894 | |
| 2895 if ((flags & NGX_HTTP_UPSTREAM_CREATE) && uscfp[i]->port) { | |
| 2896 ngx_log_error(NGX_LOG_WARN, cf->log, 0, | |
| 2897 "upstream \"%V\" may not have port %d in %s:%ui", | |
| 2898 &u->host, uscfp[i]->port, | |
| 2899 uscfp[i]->file_name.data, uscfp[i]->line); | |
| 2900 return NULL; | |
| 2901 } | |
| 2902 | |
| 2903 if (uscfp[i]->port != u->port) { | |
| 2904 continue; | |
| 884 | 2905 } |
| 2906 | |
| 2907 return uscfp[i]; | |
| 651 | 2908 } |
| 2909 | |
| 2910 uscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_srv_conf_t)); | |
| 2911 if (uscf == NULL) { | |
| 2912 return NULL; | |
| 2913 } | |
| 2914 | |
| 884 | 2915 uscf->flags = flags; |
| 651 | 2916 uscf->host = u->host; |
| 2917 uscf->file_name = cf->conf_file->file.name; | |
| 2918 uscf->line = cf->conf_file->line; | |
| 906 | 2919 uscf->port = u->port; |
| 2920 uscf->default_port = u->default_port; | |
| 884 | 2921 |
| 2922 if (u->naddrs == 1) { | |
| 2923 uscf->servers = ngx_array_create(cf->pool, 1, | |
| 2924 sizeof(ngx_http_upstream_server_t)); | |
| 2925 if (uscf->servers == NULL) { | |
| 2926 return NGX_CONF_ERROR; | |
| 2927 } | |
| 2928 | |
| 2929 us = ngx_array_push(uscf->servers); | |
| 2930 if (us == NULL) { | |
| 2931 return NGX_CONF_ERROR; | |
| 2932 } | |
| 2933 | |
| 2934 ngx_memzero(us, sizeof(ngx_http_upstream_server_t)); | |
| 2935 | |
| 2936 us->addrs = u->addrs; | |
| 2937 us->naddrs = u->naddrs; | |
| 2938 } | |
| 651 | 2939 |
| 2940 uscfp = ngx_array_push(&umcf->upstreams); | |
| 2941 if (uscfp == NULL) { | |
| 2942 return NULL; | |
| 2943 } | |
| 2944 | |
| 2945 *uscfp = uscf; | |
| 2946 | |
| 2947 return uscf; | |
| 2948 } | |
| 2949 | |
| 2950 | |
| 509 | 2951 static void * |
| 2952 ngx_http_upstream_create_main_conf(ngx_conf_t *cf) | |
| 2953 { | |
| 2954 ngx_http_upstream_main_conf_t *umcf; | |
| 2955 | |
| 2956 umcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_main_conf_t)); | |
| 2957 if (umcf == NULL) { | |
| 2958 return NULL; | |
| 2959 } | |
| 2960 | |
| 651 | 2961 if (ngx_array_init(&umcf->upstreams, cf->pool, 4, |
| 2962 sizeof(ngx_http_upstream_srv_conf_t *)) | |
| 2963 != NGX_OK) | |
| 2964 { | |
| 2965 return NGX_CONF_ERROR; | |
| 2966 } | |
| 2967 | |
| 509 | 2968 return umcf; |
| 2969 } | |
| 2970 | |
| 2971 | |
| 2972 static char * | |
| 651 | 2973 ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf) |
| 509 | 2974 { |
| 2975 ngx_http_upstream_main_conf_t *umcf = conf; | |
| 2976 | |
| 651 | 2977 ngx_uint_t i; |
| 2978 ngx_array_t headers_in; | |
| 2979 ngx_hash_key_t *hk; | |
| 2980 ngx_hash_init_t hash; | |
| 884 | 2981 ngx_http_upstream_init_pt init; |
| 651 | 2982 ngx_http_upstream_header_t *header; |
| 2983 ngx_http_upstream_srv_conf_t **uscfp; | |
| 2984 | |
| 2985 uscfp = umcf->upstreams.elts; | |
| 2986 | |
| 2987 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
| 884 | 2988 |
| 2989 init = uscfp[i]->peer.init_upstream ? uscfp[i]->peer.init_upstream: | |
| 2990 ngx_http_upstream_init_round_robin; | |
| 2991 | |
| 2992 if (init(cf, uscfp[i]) != NGX_OK) { | |
| 651 | 2993 return NGX_CONF_ERROR; |
| 2994 } | |
| 2995 } | |
| 649 | 2996 |
| 663 | 2997 |
| 884 | 2998 /* upstream_headers_in_hash */ |
| 2999 | |
| 649 | 3000 if (ngx_array_init(&headers_in, cf->temp_pool, 32, sizeof(ngx_hash_key_t)) |
| 3001 != NGX_OK) | |
| 509 | 3002 { |
| 3003 return NGX_CONF_ERROR; | |
| 3004 } | |
| 3005 | |
| 649 | 3006 for (header = ngx_http_upstream_headers_in; header->name.len; header++) { |
| 3007 hk = ngx_array_push(&headers_in); | |
| 3008 if (hk == NULL) { | |
| 3009 return NGX_CONF_ERROR; | |
| 3010 } | |
| 3011 | |
| 3012 hk->key = header->name; | |
| 3013 hk->key_hash = ngx_hash_key_lc(header->name.data, header->name.len); | |
| 3014 hk->value = header; | |
| 3015 } | |
| 3016 | |
| 3017 hash.hash = &umcf->headers_in_hash; | |
| 3018 hash.key = ngx_hash_key_lc; | |
| 3019 hash.max_size = 512; | |
|
751
bae59a740c40
align hash bucket size to cache line
Igor Sysoev <igor@sysoev.ru>
parents:
750
diff
changeset
|
3020 hash.bucket_size = ngx_align(64, ngx_cacheline_size); |
| 649 | 3021 hash.name = "upstream_headers_in_hash"; |
| 3022 hash.pool = cf->pool; | |
| 3023 hash.temp_pool = NULL; | |
| 3024 | |
| 3025 if (ngx_hash_init(&hash, headers_in.elts, headers_in.nelts) != NGX_OK) { | |
| 3026 return NGX_CONF_ERROR; | |
| 3027 } | |
| 509 | 3028 |
| 3029 return NGX_CONF_OK; | |
| 3030 } |