Mercurial > hg > nginx
annotate src/http/ngx_http_upstream.c @ 850:a164e55b4067
fix negative upstream response time
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Wed, 15 Nov 2006 20:51:07 +0000 |
| parents | b310630d129e |
| children | 3b763d36e055 |
| rev | line source |
|---|---|
| 479 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 */ | |
| 5 | |
| 6 | |
| 7 #include <ngx_config.h> | |
| 8 #include <ngx_core.h> | |
| 9 #include <ngx_http.h> | |
| 10 | |
| 11 | |
| 509 | 12 static void ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r); |
| 13 static void ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r); | |
| 14 static void ngx_http_upstream_check_broken_connection(ngx_http_request_t *r, | |
| 15 ngx_event_t *ev); | |
| 479 | 16 static void ngx_http_upstream_connect(ngx_http_request_t *r, |
| 487 | 17 ngx_http_upstream_t *u); |
| 509 | 18 static ngx_int_t ngx_http_upstream_reinit(ngx_http_request_t *r, |
| 487 | 19 ngx_http_upstream_t *u); |
| 479 | 20 static void ngx_http_upstream_send_request(ngx_http_request_t *r, |
| 487 | 21 ngx_http_upstream_t *u); |
| 479 | 22 static void ngx_http_upstream_send_request_handler(ngx_event_t *wev); |
| 23 static void ngx_http_upstream_process_header(ngx_event_t *rev); | |
|
777
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
24 static void ngx_http_upstream_process_body_in_memory(ngx_event_t *rev); |
| 479 | 25 static void ngx_http_upstream_send_response(ngx_http_request_t *r, |
| 487 | 26 ngx_http_upstream_t *u); |
| 581 | 27 static void |
| 28 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r); | |
| 29 static void ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev); | |
| 30 static ngx_int_t ngx_http_upstream_non_buffered_filter_init(void *data); | |
| 31 static ngx_int_t ngx_http_upstream_non_buffered_filter(void *data, | |
| 32 ssize_t bytes); | |
| 509 | 33 static void ngx_http_upstream_process_downstream(ngx_http_request_t *r); |
| 479 | 34 static void ngx_http_upstream_process_body(ngx_event_t *ev); |
| 35 static void ngx_http_upstream_dummy_handler(ngx_event_t *wev); | |
| 36 static void ngx_http_upstream_next(ngx_http_request_t *r, | |
| 487 | 37 ngx_http_upstream_t *u, ngx_uint_t ft_type); |
| 569 | 38 static void ngx_http_upstream_cleanup(void *data); |
| 479 | 39 static void ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
| 487 | 40 ngx_http_upstream_t *u, ngx_int_t rc); |
| 479 | 41 |
| 509 | 42 static ngx_int_t ngx_http_upstream_process_header_line(ngx_http_request_t *r, |
| 43 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 44 static ngx_int_t | |
| 45 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
| 46 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 47 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, | |
| 48 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 527 | 49 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, |
| 50 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 649 | 51 static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r, |
| 509 | 52 ngx_table_elt_t *h, ngx_uint_t offset); |
| 657 | 53 static ngx_int_t ngx_http_upstream_process_charset(ngx_http_request_t *r, |
| 54 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 649 | 55 static ngx_int_t ngx_http_upstream_copy_header_line(ngx_http_request_t *r, |
| 509 | 56 ngx_table_elt_t *h, ngx_uint_t offset); |
| 57 static ngx_int_t | |
| 58 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r, | |
| 59 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 60 static ngx_int_t ngx_http_upstream_copy_content_type(ngx_http_request_t *r, | |
| 61 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 62 static ngx_int_t ngx_http_upstream_copy_content_length(ngx_http_request_t *r, | |
| 63 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 64 static ngx_int_t ngx_http_upstream_rewrite_location(ngx_http_request_t *r, | |
| 65 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 66 static ngx_int_t ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, | |
| 67 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 68 #if (NGX_HTTP_GZIP) | |
| 69 static ngx_int_t ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
| 70 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 71 #endif | |
| 72 | |
| 479 | 73 static size_t ngx_http_upstream_log_status_getlen(ngx_http_request_t *r, |
| 487 | 74 uintptr_t data); |
| 75 static u_char *ngx_http_upstream_log_status(ngx_http_request_t *r, | |
| 76 u_char *buf, ngx_http_log_op_t *op); | |
| 573 | 77 static size_t ngx_http_upstream_log_response_time_getlen(ngx_http_request_t *r, |
| 78 uintptr_t data); | |
| 563 | 79 static u_char *ngx_http_upstream_log_response_time(ngx_http_request_t *r, |
| 80 u_char *buf, ngx_http_log_op_t *op); | |
| 479 | 81 |
| 573 | 82 static ngx_int_t ngx_http_upstream_add_variables(ngx_conf_t *cf); |
| 83 static ngx_int_t ngx_http_upstream_status_variable(ngx_http_request_t *r, | |
| 84 ngx_http_variable_value_t *v, uintptr_t data); | |
| 85 static ngx_int_t ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
| 86 ngx_http_variable_value_t *v, uintptr_t data); | |
| 87 | |
| 651 | 88 static char *ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy); |
| 89 static char *ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 90 void *conf); | |
| 91 | |
| 509 | 92 static void *ngx_http_upstream_create_main_conf(ngx_conf_t *cf); |
| 651 | 93 static char *ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf); |
| 509 | 94 |
| 577 | 95 #if (NGX_HTTP_SSL) |
| 591 | 96 static void ngx_http_upstream_ssl_init_connection(ngx_http_request_t *, |
| 97 ngx_http_upstream_t *u, ngx_connection_t *c); | |
| 577 | 98 static void ngx_http_upstream_ssl_handshake(ngx_connection_t *c); |
| 99 static void ngx_http_upstream_ssl_shutdown(ngx_connection_t *c, | |
| 100 ngx_peer_t *peer); | |
| 101 #endif | |
| 102 | |
| 509 | 103 |
| 104 ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = { | |
| 105 | |
| 106 { ngx_string("Status"), | |
| 107 ngx_http_upstream_process_header_line, | |
| 108 offsetof(ngx_http_upstream_headers_in_t, status), | |
| 649 | 109 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 509 | 110 |
| 111 { ngx_string("Content-Type"), | |
| 112 ngx_http_upstream_process_header_line, | |
| 113 offsetof(ngx_http_upstream_headers_in_t, content_type), | |
| 673 | 114 ngx_http_upstream_copy_content_type, 0, 1 }, |
| 509 | 115 |
| 116 { ngx_string("Content-Length"), | |
| 117 ngx_http_upstream_process_header_line, | |
| 118 offsetof(ngx_http_upstream_headers_in_t, content_length), | |
| 515 | 119 ngx_http_upstream_copy_content_length, 0, 0 }, |
| 509 | 120 |
| 121 { ngx_string("Date"), | |
| 122 ngx_http_upstream_process_header_line, | |
| 123 offsetof(ngx_http_upstream_headers_in_t, date), | |
| 649 | 124 ngx_http_upstream_copy_header_line, |
| 125 offsetof(ngx_http_headers_out_t, date), 0 }, | |
| 509 | 126 |
| 127 { ngx_string("Server"), | |
| 128 ngx_http_upstream_process_header_line, | |
| 129 offsetof(ngx_http_upstream_headers_in_t, server), | |
| 649 | 130 ngx_http_upstream_copy_header_line, |
| 131 offsetof(ngx_http_headers_out_t, server), 0 }, | |
| 509 | 132 |
| 529 | 133 { ngx_string("WWW-Authenticate"), |
| 134 ngx_http_upstream_process_header_line, | |
| 135 offsetof(ngx_http_upstream_headers_in_t, www_authenticate), | |
| 136 ngx_http_upstream_copy_header_line, 0, 0 }, | |
| 137 | |
| 509 | 138 { ngx_string("Location"), |
| 139 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 140 ngx_http_upstream_rewrite_location, 0, 0 }, |
| 509 | 141 |
| 142 { ngx_string("Refresh"), | |
| 143 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 144 ngx_http_upstream_rewrite_refresh, 0, 0 }, |
| 145 | |
| 146 { ngx_string("Set-Cookie"), | |
| 147 ngx_http_upstream_ignore_header_line, 0, | |
| 531 | 148 ngx_http_upstream_copy_header_line, 0, 1 }, |
| 149 | |
| 150 { ngx_string("Content-Disposition"), | |
| 151 ngx_http_upstream_ignore_header_line, 0, | |
| 152 ngx_http_upstream_copy_header_line, 0, 1 }, | |
| 509 | 153 |
| 154 { ngx_string("Cache-Control"), | |
| 155 ngx_http_upstream_process_multi_header_lines, | |
| 156 offsetof(ngx_http_upstream_headers_in_t, cache_control), | |
| 157 ngx_http_upstream_copy_multi_header_lines, | |
| 515 | 158 offsetof(ngx_http_headers_out_t, cache_control), 1 }, |
| 509 | 159 |
| 573 | 160 { ngx_string("Expires"), |
| 161 ngx_http_upstream_process_header_line, | |
| 162 offsetof(ngx_http_upstream_headers_in_t, expires), | |
| 163 ngx_http_upstream_copy_header_line, | |
| 164 offsetof(ngx_http_headers_out_t, expires), 1 }, | |
| 165 | |
| 577 | 166 { ngx_string("Accept-Ranges"), |
| 167 ngx_http_upstream_process_header_line, | |
| 168 offsetof(ngx_http_upstream_headers_in_t, accept_ranges), | |
| 169 ngx_http_upstream_copy_header_line, | |
| 170 offsetof(ngx_http_headers_out_t, accept_ranges), 1 }, | |
| 171 | |
| 509 | 172 { ngx_string("Connection"), |
| 173 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 174 ngx_http_upstream_ignore_header_line, 0, 0 }, |
| 509 | 175 |
| 641 | 176 { ngx_string("Keep-Alive"), |
| 177 ngx_http_upstream_ignore_header_line, 0, | |
| 178 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 179 | |
| 509 | 180 { ngx_string("X-Powered-By"), |
| 181 ngx_http_upstream_ignore_header_line, 0, | |
| 649 | 182 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 509 | 183 |
| 184 { ngx_string("X-Accel-Expires"), | |
| 185 ngx_http_upstream_process_header_line, | |
| 186 offsetof(ngx_http_upstream_headers_in_t, x_accel_expires), | |
| 649 | 187 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 515 | 188 |
| 189 { ngx_string("X-Accel-Redirect"), | |
| 190 ngx_http_upstream_process_header_line, | |
| 191 offsetof(ngx_http_upstream_headers_in_t, x_accel_redirect), | |
| 192 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 509 | 193 |
| 527 | 194 { ngx_string("X-Accel-Limit-Rate"), |
| 195 ngx_http_upstream_process_limit_rate, 0, | |
| 196 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 197 | |
| 649 | 198 { ngx_string("X-Accel-Buffering"), |
| 199 ngx_http_upstream_process_buffering, 0, | |
| 200 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 201 | |
| 657 | 202 { ngx_string("X-Accel-Charset"), |
| 203 ngx_http_upstream_process_charset, 0, | |
| 204 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 205 | |
| 509 | 206 #if (NGX_HTTP_GZIP) |
| 207 { ngx_string("Content-Encoding"), | |
| 208 ngx_http_upstream_process_header_line, | |
| 209 offsetof(ngx_http_upstream_headers_in_t, content_encoding), | |
| 515 | 210 ngx_http_upstream_copy_content_encoding, 0, 0 }, |
| 509 | 211 #endif |
| 212 | |
| 515 | 213 { ngx_null_string, NULL, 0, NULL, 0, 0 } |
| 509 | 214 }; |
| 479 | 215 |
| 216 | |
| 651 | 217 static ngx_command_t ngx_http_upstream_commands[] = { |
| 218 | |
| 219 { ngx_string("upstream"), | |
| 220 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1, | |
| 221 ngx_http_upstream, | |
| 222 0, | |
| 223 0, | |
| 224 NULL }, | |
| 225 | |
| 226 { ngx_string("server"), | |
| 663 | 227 NGX_HTTP_UPS_CONF|NGX_CONF_TAKE12, |
| 651 | 228 ngx_http_upstream_server, |
| 229 NGX_HTTP_SRV_CONF_OFFSET, | |
| 230 0, | |
| 231 NULL }, | |
| 232 | |
| 233 ngx_null_command | |
| 234 }; | |
| 235 | |
| 236 | |
| 237 static ngx_http_module_t ngx_http_upstream_module_ctx = { | |
| 573 | 238 ngx_http_upstream_add_variables, /* preconfiguration */ |
| 509 | 239 NULL, /* postconfiguration */ |
| 240 | |
| 241 ngx_http_upstream_create_main_conf, /* create main configuration */ | |
| 651 | 242 ngx_http_upstream_init_main_conf, /* init main configuration */ |
| 479 | 243 |
| 244 NULL, /* create server configuration */ | |
| 245 NULL, /* merge server configuration */ | |
| 246 | |
| 247 NULL, /* create location configuration */ | |
| 248 NULL /* merge location configuration */ | |
| 249 }; | |
| 577 | 250 |
| 479 | 251 |
| 252 ngx_module_t ngx_http_upstream_module = { | |
| 509 | 253 NGX_MODULE_V1, |
| 479 | 254 &ngx_http_upstream_module_ctx, /* module context */ |
| 651 | 255 ngx_http_upstream_commands, /* module directives */ |
| 479 | 256 NGX_HTTP_MODULE, /* module type */ |
| 541 | 257 NULL, /* init master */ |
| 479 | 258 NULL, /* init module */ |
| 541 | 259 NULL, /* init process */ |
| 260 NULL, /* init thread */ | |
| 261 NULL, /* exit thread */ | |
| 262 NULL, /* exit process */ | |
| 263 NULL, /* exit master */ | |
| 264 NGX_MODULE_V1_PADDING | |
| 479 | 265 }; |
| 266 | |
| 267 | |
| 583 | 268 static ngx_http_log_op_name_t ngx_http_upstream_log_fmt_ops[] = { |
| 479 | 269 { ngx_string("upstream_status"), 0, NULL, |
| 573 | 270 ngx_http_upstream_log_status_getlen, |
| 271 ngx_http_upstream_log_status }, | |
| 272 { ngx_string("upstream_response_time"), 0, NULL, | |
| 273 ngx_http_upstream_log_response_time_getlen, | |
| 274 ngx_http_upstream_log_response_time }, | |
| 479 | 275 { ngx_null_string, 0, NULL, NULL, NULL } |
| 276 }; | |
| 277 | |
| 278 | |
| 573 | 279 static ngx_http_variable_t ngx_http_upstream_vars[] = { |
| 280 | |
| 637 | 281 { ngx_string("upstream_status"), NULL, |
| 583 | 282 ngx_http_upstream_status_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
| 573 | 283 |
| 637 | 284 { ngx_string("upstream_response_time"), NULL, |
| 583 | 285 ngx_http_upstream_response_time_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
| 573 | 286 |
| 637 | 287 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
| 573 | 288 }; |
| 289 | |
| 290 | |
| 487 | 291 void |
| 292 ngx_http_upstream_init(ngx_http_request_t *r) | |
| 479 | 293 { |
| 509 | 294 ngx_connection_t *c; |
| 569 | 295 ngx_http_cleanup_t *cln; |
| 509 | 296 ngx_http_upstream_t *u; |
| 297 ngx_http_core_loc_conf_t *clcf; | |
| 479 | 298 |
| 299 c = r->connection; | |
| 300 | |
| 301 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 302 "http init upstream, client timer: %d", c->read->timer_set); | |
| 303 | |
| 304 if (c->read->timer_set) { | |
| 305 ngx_del_timer(c->read); | |
| 306 } | |
| 307 | |
| 629 | 308 u = r->upstream; |
| 309 | |
| 310 if (!r->post_action && !u->conf->ignore_client_abort) { | |
| 615 | 311 r->read_event_handler = ngx_http_upstream_rd_check_broken_connection; |
| 312 r->write_event_handler = ngx_http_upstream_wr_check_broken_connection; | |
| 313 } | |
| 577 | 314 |
| 479 | 315 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) { |
| 316 | |
| 317 if (!c->write->active) { | |
| 531 | 318 if (ngx_add_event(c->write, NGX_WRITE_EVENT, NGX_CLEAR_EVENT) |
| 319 == NGX_ERROR) | |
| 479 | 320 { |
| 321 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 322 return; | |
| 323 } | |
| 324 } | |
| 325 } | |
| 326 | |
| 537 | 327 if (r->request_body) { |
| 328 u->request_bufs = r->request_body->bufs; | |
| 329 } | |
| 509 | 330 |
| 537 | 331 if (u->create_request(r) != NGX_OK) { |
| 479 | 332 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 333 return; | |
| 334 } | |
| 335 | |
| 336 u->peer.log = r->connection->log; | |
| 509 | 337 |
| 338 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 479 | 339 |
| 340 u->output.sendfile = r->connection->sendfile; | |
| 341 u->output.pool = r->pool; | |
| 342 u->output.bufs.num = 1; | |
| 509 | 343 u->output.bufs.size = clcf->client_body_buffer_size; |
| 479 | 344 u->output.output_filter = ngx_chain_writer; |
| 345 u->output.filter_ctx = &u->writer; | |
| 346 | |
| 347 u->writer.pool = r->pool; | |
| 348 | |
| 349 if (ngx_array_init(&u->states, r->pool, u->peer.peers->number, | |
| 569 | 350 sizeof(ngx_http_upstream_state_t)) |
| 351 != NGX_OK) | |
| 479 | 352 { |
| 353 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 354 return; | |
| 355 } | |
| 356 | |
| 593 | 357 cln = ngx_http_cleanup_add(r, 0); |
| 569 | 358 if (cln == NULL) { |
| 359 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 360 return; | |
| 361 } | |
| 362 | |
| 363 cln->handler = ngx_http_upstream_cleanup; | |
| 364 cln->data = r; | |
| 365 u->cleanup = &cln->handler; | |
| 366 | |
| 479 | 367 ngx_http_upstream_connect(r, u); |
| 368 } | |
| 369 | |
| 370 | |
| 487 | 371 static void |
| 509 | 372 ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r) |
| 373 { | |
| 374 ngx_http_upstream_check_broken_connection(r, r->connection->read); | |
| 375 } | |
| 376 | |
| 377 | |
| 378 static void | |
| 379 ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r) | |
| 380 { | |
| 381 ngx_http_upstream_check_broken_connection(r, r->connection->write); | |
| 382 } | |
| 383 | |
| 384 | |
| 385 static void | |
| 386 ngx_http_upstream_check_broken_connection(ngx_http_request_t *r, | |
| 387 ngx_event_t *ev) | |
| 479 | 388 { |
| 389 int n; | |
| 390 char buf[1]; | |
| 577 | 391 ngx_err_t err; |
| 479 | 392 ngx_connection_t *c; |
| 393 ngx_http_upstream_t *u; | |
| 394 | |
| 527 | 395 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, ev->log, 0, |
| 396 "http upstream check client, write event:%d, \"%V\"", | |
| 397 ev->write, &r->uri); | |
| 479 | 398 |
| 509 | 399 c = r->connection; |
| 483 | 400 u = r->upstream; |
| 401 | |
| 583 | 402 if (c->error) { |
| 527 | 403 ngx_http_upstream_finalize_request(r, u, |
| 404 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 405 return; | |
| 406 } | |
| 407 | |
| 483 | 408 if (u->peer.connection == NULL) { |
| 409 return; | |
| 410 } | |
| 411 | |
| 479 | 412 #if (NGX_HAVE_KQUEUE) |
| 413 | |
| 414 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { | |
| 415 | |
| 416 if (!ev->pending_eof) { | |
| 417 return; | |
| 418 } | |
| 419 | |
| 420 ev->eof = 1; | |
| 583 | 421 c->error = 1; |
| 479 | 422 |
| 423 if (ev->kq_errno) { | |
| 424 ev->error = 1; | |
| 425 } | |
| 426 | |
| 427 if (!u->cachable && u->peer.connection) { | |
| 428 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno, | |
| 527 | 429 "kevent() reported that client closed prematurely " |
| 430 "connection, so upstream connection is closed too"); | |
| 479 | 431 ngx_http_upstream_finalize_request(r, u, |
| 432 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 433 return; | |
| 434 } | |
| 435 | |
| 436 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno, | |
| 437 "kevent() reported that client closed " | |
| 438 "prematurely connection"); | |
| 439 | |
| 440 if (u->peer.connection == NULL) { | |
| 441 ngx_http_upstream_finalize_request(r, u, | |
| 442 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 443 return; | |
| 444 } | |
| 445 | |
| 446 return; | |
| 447 } | |
| 448 | |
| 449 #endif | |
| 450 | |
| 451 n = recv(c->fd, buf, 1, MSG_PEEK); | |
| 452 | |
| 453 err = ngx_socket_errno; | |
| 454 | |
| 455 /* | |
| 456 * we do not need to disable the write event because | |
| 457 * that event has NGX_USE_CLEAR_EVENT type | |
| 458 */ | |
| 459 | |
| 460 if (ev->write && (n >= 0 || err == NGX_EAGAIN)) { | |
| 461 return; | |
| 462 } | |
| 463 | |
| 464 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) { | |
| 465 if (ngx_del_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) { | |
| 466 ngx_http_upstream_finalize_request(r, u, | |
| 467 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 468 return; | |
| 469 } | |
| 470 } | |
| 471 | |
| 472 if (n > 0) { | |
| 473 return; | |
| 474 } | |
| 475 | |
| 476 if (n == -1) { | |
| 477 if (err == NGX_EAGAIN) { | |
| 478 return; | |
| 479 } | |
| 480 | |
| 481 ev->error = 1; | |
| 482 | |
| 483 | 483 } else { /* n == 0 */ |
| 479 | 484 err = 0; |
| 485 } | |
| 486 | |
| 529 | 487 ev->eof = 1; |
| 583 | 488 c->error = 1; |
| 529 | 489 |
| 479 | 490 if (!u->cachable && u->peer.connection) { |
| 491 ngx_log_error(NGX_LOG_INFO, ev->log, err, | |
| 492 "client closed prematurely connection, " | |
| 493 "so upstream connection is closed too"); | |
| 494 ngx_http_upstream_finalize_request(r, u, | |
| 495 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 496 return; | |
| 497 } | |
| 498 | |
| 499 ngx_log_error(NGX_LOG_INFO, ev->log, err, | |
| 500 "client closed prematurely connection"); | |
| 501 | |
| 502 if (u->peer.connection == NULL) { | |
| 503 ngx_http_upstream_finalize_request(r, u, | |
| 504 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 505 return; | |
| 506 } | |
| 507 } | |
| 508 | |
| 509 | |
| 487 | 510 static void |
| 511 ngx_http_upstream_connect(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 479 | 512 { |
| 591 | 513 ngx_int_t rc; |
| 665 | 514 ngx_time_t *tp; |
|
850
a164e55b4067
fix negative upstream response time
Igor Sysoev <igor@sysoev.ru>
parents:
787
diff
changeset
|
515 ngx_msec_int_t ms; |
| 591 | 516 ngx_connection_t *c; |
| 479 | 517 |
| 483 | 518 r->connection->log->action = "connecting to upstream"; |
| 479 | 519 |
| 520 r->connection->single_connection = 0; | |
| 521 | |
| 665 | 522 if (u->state && u->state->response_time) { |
| 523 tp = ngx_timeofday(); | |
|
850
a164e55b4067
fix negative upstream response time
Igor Sysoev <igor@sysoev.ru>
parents:
787
diff
changeset
|
524 ms = tp->sec * 1000 + tp->msec - u->state->response_time; |
|
a164e55b4067
fix negative upstream response time
Igor Sysoev <igor@sysoev.ru>
parents:
787
diff
changeset
|
525 u->state->response_time = (ms >= 0) ? ms : 0; |
| 665 | 526 } |
| 527 | |
| 528 u->state = ngx_array_push(&u->states); | |
| 529 if (u->state == NULL) { | |
| 530 ngx_http_upstream_finalize_request(r, u, | |
| 531 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 532 return; | |
| 533 } | |
| 534 | |
| 535 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t)); | |
| 536 | |
| 537 tp = ngx_timeofday(); | |
| 538 u->state->response_time = tp->sec * 1000 + tp->msec; | |
| 539 | |
| 479 | 540 rc = ngx_event_connect_peer(&u->peer); |
| 541 | |
| 542 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 543 "http upstream connect: %i", rc); | |
| 544 | |
| 545 if (rc == NGX_ERROR) { | |
| 546 ngx_http_upstream_finalize_request(r, u, | |
| 547 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 548 return; | |
| 549 } | |
| 550 | |
| 591 | 551 u->state->peer = &u->peer.peers->peer[u->peer.cur_peer].name; |
| 479 | 552 |
| 543 | 553 if (rc == NGX_BUSY) { |
| 554 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no live upstreams"); | |
| 555 } | |
| 556 | |
| 557 if (rc == NGX_BUSY || rc == NGX_DECLINED) { | |
| 479 | 558 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
| 559 return; | |
| 560 } | |
| 561 | |
| 577 | 562 /* rc == NGX_OK || rc == NGX_AGAIN */ |
| 563 | |
| 479 | 564 c = u->peer.connection; |
| 565 | |
| 566 c->data = r; | |
| 591 | 567 |
| 509 | 568 c->write->handler = ngx_http_upstream_send_request_handler; |
| 569 c->read->handler = ngx_http_upstream_process_header; | |
| 479 | 570 |
| 571 c->sendfile = r->connection->sendfile; | |
| 572 | |
| 573 c->pool = r->pool; | |
| 574 c->read->log = c->write->log = c->log = r->connection->log; | |
| 575 | |
| 576 /* init or reinit the ngx_output_chain() and ngx_chain_writer() contexts */ | |
| 577 | |
| 578 u->writer.out = NULL; | |
| 579 u->writer.last = &u->writer.out; | |
| 580 u->writer.connection = c; | |
| 581 u->writer.limit = 0; | |
| 582 | |
| 583 if (u->request_sent) { | |
| 509 | 584 if (ngx_http_upstream_reinit(r, u) != NGX_OK) { |
| 585 ngx_http_upstream_finalize_request(r, u, | |
| 586 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 587 return; | |
| 588 } | |
| 479 | 589 } |
| 590 | |
| 597 | 591 if (r->request_body && r->request_body->temp_file && r == r->main) { |
| 573 | 592 |
| 593 /* | |
| 594 * the r->request_body->buf can be reused for one request only, | |
| 595 * the subrequests should allocate their own temporay bufs | |
| 596 */ | |
| 597 | |
| 598 u->output.free = ngx_alloc_chain_link(r->pool); | |
| 599 if (u->output.free == NULL) { | |
| 600 ngx_http_upstream_finalize_request(r, u, | |
| 601 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 602 return; | |
| 479 | 603 } |
| 573 | 604 |
| 605 u->output.free->buf = r->request_body->buf; | |
| 606 u->output.free->next = NULL; | |
| 607 u->output.allocated = 1; | |
| 608 | |
| 609 r->request_body->buf->pos = r->request_body->buf->start; | |
| 610 r->request_body->buf->last = r->request_body->buf->start; | |
| 611 r->request_body->buf->tag = u->output.tag; | |
| 479 | 612 } |
| 613 | |
| 614 u->request_sent = 0; | |
| 615 | |
| 616 if (rc == NGX_AGAIN) { | |
| 617 ngx_add_timer(c->write, u->conf->connect_timeout); | |
| 618 return; | |
| 619 } | |
| 620 | |
| 577 | 621 #if (NGX_HTTP_SSL) |
| 622 | |
| 591 | 623 if (u->conf->ssl && c->ssl == NULL) { |
| 624 ngx_http_upstream_ssl_init_connection(r, u, c); | |
| 577 | 625 return; |
| 626 } | |
| 627 | |
| 628 #endif | |
| 629 | |
| 479 | 630 ngx_http_upstream_send_request(r, u); |
| 631 } | |
| 632 | |
| 633 | |
| 577 | 634 #if (NGX_HTTP_SSL) |
| 635 | |
| 636 static void | |
| 591 | 637 ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r, |
| 638 ngx_http_upstream_t *u, ngx_connection_t *c) | |
| 639 { | |
| 640 ngx_int_t rc; | |
| 641 ngx_peer_t *peer; | |
| 642 | |
| 643 if (ngx_ssl_create_connection(u->conf->ssl, c, | |
| 644 NGX_SSL_BUFFER|NGX_SSL_CLIENT) | |
| 645 == NGX_ERROR) | |
| 646 { | |
| 647 ngx_http_upstream_finalize_request(r, u, | |
| 648 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 649 return; | |
| 650 } | |
| 651 | |
| 652 c->sendfile = 0; | |
| 619 | 653 u->output.sendfile = 0; |
| 591 | 654 |
| 655 peer = &u->peer.peers->peer[u->peer.cur_peer]; | |
| 656 | |
| 657 if (ngx_ssl_set_session(c, peer->ssl_session) != NGX_OK) { | |
| 658 ngx_http_upstream_finalize_request(r, u, | |
| 659 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 660 return; | |
| 661 } | |
| 662 | |
| 641 | 663 r->connection->log->action = "SSL handshaking to upstream"; |
| 664 | |
| 591 | 665 rc = ngx_ssl_handshake(c); |
| 666 | |
| 667 if (rc == NGX_AGAIN) { | |
| 668 c->ssl->handler = ngx_http_upstream_ssl_handshake; | |
| 669 return; | |
| 670 } | |
| 671 | |
| 672 ngx_http_upstream_ssl_handshake(c); | |
| 673 } | |
| 674 | |
| 675 | |
| 676 static void | |
| 577 | 677 ngx_http_upstream_ssl_handshake(ngx_connection_t *c) |
| 678 { | |
| 679 ngx_http_request_t *r; | |
| 680 ngx_http_upstream_t *u; | |
| 681 | |
| 682 r = c->data; | |
| 683 u = r->upstream; | |
| 684 | |
| 685 if (c->ssl->handshaked) { | |
| 686 | |
| 687 c->write->handler = ngx_http_upstream_send_request_handler; | |
| 688 c->read->handler = ngx_http_upstream_process_header; | |
| 689 | |
| 690 ngx_http_upstream_send_request(r, u); | |
| 691 | |
| 692 return; | |
| 693 } | |
| 694 | |
| 695 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 696 | |
| 697 } | |
| 698 | |
| 699 #endif | |
| 700 | |
| 701 | |
| 509 | 702 static ngx_int_t |
| 487 | 703 ngx_http_upstream_reinit(ngx_http_request_t *r, ngx_http_upstream_t *u) |
| 479 | 704 { |
| 705 ngx_chain_t *cl; | |
| 706 | |
| 509 | 707 if (u->reinit_request(r) != NGX_OK) { |
| 708 return NGX_ERROR; | |
| 709 } | |
| 710 | |
| 711 ngx_memzero(&r->upstream->headers_in, | |
| 712 sizeof(ngx_http_upstream_headers_in_t)); | |
| 713 | |
| 714 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, | |
| 591 | 715 sizeof(ngx_table_elt_t)) |
| 716 != NGX_OK) | |
| 509 | 717 { |
| 718 return NGX_ERROR; | |
| 479 | 719 } |
| 720 | |
| 721 /* reinit the request chain */ | |
| 577 | 722 |
| 509 | 723 for (cl = u->request_bufs; cl; cl = cl->next) { |
| 479 | 724 cl->buf->pos = cl->buf->start; |
| 725 cl->buf->file_pos = 0; | |
| 726 } | |
| 727 | |
| 509 | 728 /* reinit the subrequest's ngx_output_chain() context */ |
| 729 | |
| 573 | 730 if (r->request_body && r->request_body->temp_file |
| 597 | 731 && r != r->main && u->output.buf) |
| 573 | 732 { |
| 733 u->output.free = ngx_alloc_chain_link(r->pool); | |
| 734 if (u->output.free == NULL) { | |
| 735 return NGX_ERROR; | |
| 509 | 736 } |
| 573 | 737 |
| 738 u->output.free->buf = u->output.buf; | |
| 739 u->output.free->next = NULL; | |
| 740 | |
| 741 u->output.buf->pos = u->output.buf->start; | |
| 742 u->output.buf->last = u->output.buf->start; | |
| 509 | 743 } |
| 479 | 744 |
| 745 u->output.buf = NULL; | |
| 746 u->output.in = NULL; | |
| 747 u->output.busy = NULL; | |
| 577 | 748 |
| 581 | 749 /* reinit u->buffer */ |
| 577 | 750 |
| 479 | 751 #if 0 |
| 752 if (u->cache) { | |
| 581 | 753 u->buffer.pos = u->buffer.start + u->cache->ctx.header_size; |
| 754 u->buffer.last = u->buffer.pos; | |
| 479 | 755 |
| 756 } else { | |
| 581 | 757 u->buffer.pos = u->buffer.start; |
| 758 u->buffer.last = u->buffer.start; | |
| 479 | 759 } |
| 760 #else | |
| 509 | 761 |
| 581 | 762 u->buffer.pos = u->buffer.start; |
| 763 u->buffer.last = u->buffer.start; | |
| 509 | 764 |
| 479 | 765 #endif |
| 766 | |
| 509 | 767 return NGX_OK; |
| 479 | 768 } |
| 769 | |
| 770 | |
| 487 | 771 static void |
| 772 ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 479 | 773 { |
| 671 | 774 int rc, err; |
| 775 socklen_t len; | |
| 483 | 776 ngx_connection_t *c; |
| 577 | 777 |
| 479 | 778 c = u->peer.connection; |
| 779 | |
| 780 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 781 "http upstream send request"); | |
| 782 | |
| 671 | 783 if (!u->request_sent) { |
| 784 | |
| 479 | 785 #if (NGX_HAVE_KQUEUE) |
| 786 | |
| 671 | 787 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
| 788 if (c->write->pending_eof) { | |
| 789 (void) ngx_connection_error(c, c->write->kq_errno, | |
| 537 | 790 "kevent() reported that connect() failed"); |
| 671 | 791 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
| 792 return; | |
| 793 } | |
| 794 | |
| 795 } else | |
| 796 #endif | |
| 797 { | |
| 798 err = 0; | |
| 799 len = sizeof(int); | |
| 800 | |
| 801 /* | |
| 802 * BSDs and Linux return 0 and set a pending error in err | |
| 803 * Solaris returns -1 and sets errno | |
| 804 */ | |
| 805 | |
| 806 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len) | |
| 807 == -1) | |
| 808 { | |
| 809 err = ngx_errno; | |
| 810 } | |
| 811 | |
| 812 if (err) { | |
| 813 (void) ngx_connection_error(c, err, "connect() failed"); | |
| 814 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 815 return; | |
| 816 } | |
| 817 } | |
| 479 | 818 } |
| 819 | |
| 483 | 820 c->log->action = "sending request to upstream"; |
| 479 | 821 |
| 509 | 822 rc = ngx_output_chain(&u->output, u->request_sent ? NULL : u->request_bufs); |
| 479 | 823 |
| 824 u->request_sent = 1; | |
| 825 | |
| 826 if (rc == NGX_ERROR) { | |
| 827 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 828 return; | |
| 829 } | |
| 830 | |
| 831 if (c->write->timer_set) { | |
| 832 ngx_del_timer(c->write); | |
| 833 } | |
| 834 | |
| 835 if (rc == NGX_AGAIN) { | |
| 836 ngx_add_timer(c->write, u->conf->send_timeout); | |
| 837 | |
| 838 if (ngx_handle_write_event(c->write, u->conf->send_lowat) == NGX_ERROR) | |
| 839 { | |
| 840 ngx_http_upstream_finalize_request(r, u, | |
| 841 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 842 return; | |
| 843 } | |
| 844 | |
| 845 return; | |
| 846 } | |
| 847 | |
| 848 /* rc == NGX_OK */ | |
| 849 | |
| 850 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) { | |
| 851 if (ngx_tcp_push(c->fd) == NGX_ERROR) { | |
| 852 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno, | |
| 853 ngx_tcp_push_n " failed"); | |
| 854 ngx_http_upstream_finalize_request(r, u, | |
| 855 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 577 | 856 return; |
| 479 | 857 } |
| 858 | |
| 859 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET; | |
| 860 } | |
| 577 | 861 |
| 479 | 862 ngx_add_timer(c->read, u->conf->read_timeout); |
| 863 | |
| 864 #if 1 | |
| 865 if (c->read->ready) { | |
| 577 | 866 |
| 479 | 867 /* post aio operation */ |
| 868 | |
| 869 /* | |
| 870 * TODO comment | |
| 871 * although we can post aio operation just in the end | |
| 872 * of ngx_http_upstream_connect() CHECK IT !!! | |
| 873 * it's better to do here because we postpone header buffer allocation | |
| 874 */ | |
| 875 | |
| 876 ngx_http_upstream_process_header(c->read); | |
| 877 return; | |
| 878 } | |
| 879 #endif | |
| 880 | |
| 509 | 881 c->write->handler = ngx_http_upstream_dummy_handler; |
| 479 | 882 |
| 509 | 883 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) { |
| 479 | 884 ngx_http_upstream_finalize_request(r, u, |
| 885 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 886 return; | |
| 887 } | |
| 888 } | |
| 889 | |
| 890 | |
| 487 | 891 static void |
| 892 ngx_http_upstream_send_request_handler(ngx_event_t *wev) | |
| 479 | 893 { |
| 894 ngx_connection_t *c; | |
| 895 ngx_http_request_t *r; | |
| 896 ngx_http_upstream_t *u; | |
| 897 | |
| 898 c = wev->data; | |
| 899 r = c->data; | |
| 900 u = r->upstream; | |
| 901 | |
| 902 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
| 903 "http upstream send request handler"); | |
| 904 | |
| 905 if (wev->timedout) { | |
| 906 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
| 907 return; | |
| 908 } | |
| 909 | |
| 591 | 910 #if (NGX_HTTP_SSL) |
| 911 | |
| 912 if (u->conf->ssl && c->ssl == NULL) { | |
| 913 ngx_http_upstream_ssl_init_connection(r, u, c); | |
| 914 return; | |
| 915 } | |
| 916 | |
| 917 #endif | |
| 918 | |
| 651 | 919 if (u->header_sent) { |
| 920 wev->handler = ngx_http_upstream_dummy_handler; | |
| 921 | |
| 922 (void) ngx_handle_write_event(wev, 0); | |
| 923 | |
| 924 return; | |
| 925 } | |
| 926 | |
| 479 | 927 ngx_http_upstream_send_request(r, u); |
| 928 } | |
| 929 | |
| 930 | |
| 487 | 931 static void |
| 932 ngx_http_upstream_process_header(ngx_event_t *rev) | |
| 479 | 933 { |
| 515 | 934 ssize_t n; |
| 935 ngx_int_t rc; | |
| 573 | 936 ngx_str_t *uri, args; |
| 649 | 937 ngx_uint_t i, flags; |
| 515 | 938 ngx_list_part_t *part; |
| 939 ngx_table_elt_t *h; | |
| 940 ngx_connection_t *c; | |
| 941 ngx_http_request_t *r; | |
| 942 ngx_http_upstream_t *u; | |
| 943 ngx_http_err_page_t *err_page; | |
| 944 ngx_http_core_loc_conf_t *clcf; | |
| 945 ngx_http_upstream_header_t *hh; | |
| 946 ngx_http_upstream_main_conf_t *umcf; | |
| 479 | 947 |
| 948 c = rev->data; | |
| 949 r = c->data; | |
| 950 u = r->upstream; | |
| 951 | |
| 952 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, | |
| 483 | 953 "http upstream process header"); |
| 479 | 954 |
| 483 | 955 c->log->action = "reading response header from upstream"; |
| 479 | 956 |
| 957 if (rev->timedout) { | |
| 958 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
| 959 return; | |
| 960 } | |
| 577 | 961 |
| 581 | 962 if (u->buffer.start == NULL) { |
| 963 u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size); | |
| 964 if (u->buffer.start == NULL) { | |
| 479 | 965 ngx_http_upstream_finalize_request(r, u, |
| 966 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 967 return; | |
| 968 } | |
| 969 | |
| 581 | 970 u->buffer.pos = u->buffer.start; |
| 971 u->buffer.last = u->buffer.start; | |
| 972 u->buffer.end = u->buffer.start + u->conf->buffer_size; | |
| 973 u->buffer.temporary = 1; | |
| 974 | |
| 975 u->buffer.tag = u->output.tag; | |
| 479 | 976 |
| 509 | 977 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, |
| 581 | 978 sizeof(ngx_table_elt_t)) |
| 979 != NGX_OK) | |
| 509 | 980 { |
| 981 ngx_http_upstream_finalize_request(r, u, | |
| 982 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 983 return; | |
| 984 } | |
| 985 | |
| 479 | 986 #if 0 |
| 987 if (u->cache) { | |
| 581 | 988 u->buffer.pos += u->cache->ctx.header_size; |
| 989 u->buffer.last = u->buffer.pos; | |
| 479 | 990 } |
| 991 #endif | |
| 992 } | |
| 993 | |
| 581 | 994 n = u->peer.connection->recv(u->peer.connection, u->buffer.last, |
| 995 u->buffer.end - u->buffer.last); | |
| 479 | 996 |
| 997 if (n == NGX_AGAIN) { | |
| 998 #if 0 | |
| 999 ngx_add_timer(rev, u->read_timeout); | |
| 1000 #endif | |
| 1001 | |
| 1002 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 1003 ngx_http_upstream_finalize_request(r, u, | |
| 1004 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1005 return; | |
| 1006 } | |
| 1007 | |
| 1008 return; | |
| 1009 } | |
| 1010 | |
| 1011 if (n == 0) { | |
| 1012 ngx_log_error(NGX_LOG_ERR, rev->log, 0, | |
| 1013 "upstream prematurely closed connection"); | |
| 1014 } | |
| 1015 | |
| 1016 if (n == NGX_ERROR || n == 0) { | |
| 1017 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 1018 return; | |
| 1019 } | |
| 1020 | |
| 581 | 1021 u->buffer.last += n; |
| 479 | 1022 |
| 1023 #if 0 | |
| 1024 u->valid_header_in = 0; | |
| 1025 | |
| 1026 u->peer.cached = 0; | |
| 1027 #endif | |
| 1028 | |
| 1029 rc = u->process_header(r); | |
| 1030 | |
| 1031 if (rc == NGX_AGAIN) { | |
| 1032 #if 0 | |
| 1033 ngx_add_timer(rev, u->read_timeout); | |
| 1034 #endif | |
| 1035 | |
| 581 | 1036 if (u->buffer.pos == u->buffer.end) { |
| 479 | 1037 ngx_log_error(NGX_LOG_ERR, rev->log, 0, |
| 1038 "upstream sent too big header"); | |
| 1039 | |
| 1040 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
| 1041 return; | |
| 1042 } | |
| 1043 | |
| 1044 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 1045 ngx_http_upstream_finalize_request(r, u, | |
| 1046 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1047 return; | |
| 1048 } | |
| 1049 | |
| 1050 return; | |
| 1051 } | |
| 1052 | |
| 1053 if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) { | |
| 1054 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
| 1055 return; | |
| 1056 } | |
| 1057 | |
| 1058 if (rc == NGX_ERROR || rc == NGX_HTTP_INTERNAL_SERVER_ERROR) { | |
| 1059 ngx_http_upstream_finalize_request(r, u, | |
| 1060 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1061 return; | |
| 1062 } | |
| 1063 | |
| 1064 /* rc == NGX_OK */ | |
| 1065 | |
|
777
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1066 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1067 && r->subrequest_in_memory) |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1068 { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1069 u->buffer.last = u->buffer.pos; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1070 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1071 |
| 529 | 1072 if (u->headers_in.status_n == NGX_HTTP_INTERNAL_SERVER_ERROR) { |
| 509 | 1073 |
| 1074 if (u->peer.tries > 1 | |
| 1075 && (u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
| 1076 { | |
| 1077 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_500); | |
| 1078 return; | |
| 1079 } | |
| 1080 | |
| 1081 #if (NGX_HTTP_CACHE) | |
| 1082 | |
| 1083 if (u->peer.tries == 0 | |
| 1084 && u->stale | |
| 1085 && (u->conf->use_stale & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
| 1086 { | |
| 1087 ngx_http_upstream_finalize_request(r, u, | |
| 529 | 1088 ngx_http_send_cached_response(r)); |
| 509 | 1089 return; |
| 1090 } | |
| 1091 | |
| 1092 #endif | |
| 1093 } | |
| 1094 | |
| 597 | 1095 if (u->headers_in.status_n == NGX_HTTP_NOT_FOUND) { |
| 1096 | |
| 1097 if (u->peer.tries > 1 | |
| 1098 && u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_404) | |
| 1099 { | |
| 1100 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_404); | |
| 1101 return; | |
| 1102 } | |
| 1103 | |
| 675 | 1104 if (u->conf->intercept_404) { |
| 1105 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_NOT_FOUND); | |
| 597 | 1106 return; |
| 1107 } | |
| 509 | 1108 } |
| 1109 | |
| 1110 | |
| 529 | 1111 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
| 675 | 1112 && u->conf->intercept_errors) |
| 487 | 1113 { |
| 1114 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 1115 | |
| 1116 if (clcf->error_pages) { | |
| 1117 | |
| 1118 err_page = clcf->error_pages->elts; | |
| 1119 for (i = 0; i < clcf->error_pages->nelts; i++) { | |
| 529 | 1120 if (err_page[i].status == (ngx_int_t) u->headers_in.status_n) { |
| 1121 | |
| 1122 if (u->headers_in.status_n == NGX_HTTP_UNAUTHORIZED) { | |
| 1123 | |
| 1124 r->headers_out.www_authenticate = | |
| 1125 ngx_list_push(&r->headers_out.headers); | |
| 1126 | |
| 1127 if (r->headers_out.www_authenticate == NULL) { | |
| 1128 ngx_http_upstream_finalize_request(r, u, | |
| 1129 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1130 return; | |
| 1131 } | |
| 1132 | |
| 577 | 1133 *r->headers_out.www_authenticate = |
| 529 | 1134 *u->headers_in.www_authenticate; |
| 1135 } | |
| 1136 | |
| 487 | 1137 ngx_http_upstream_finalize_request(r, u, |
| 529 | 1138 u->headers_in.status_n); |
| 487 | 1139 return; |
| 1140 } | |
| 1141 } | |
| 1142 } | |
| 1143 } | |
| 1144 | |
| 681 | 1145 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); |
| 1146 | |
| 515 | 1147 if (r->upstream->headers_in.x_accel_redirect) { |
|
757
a138c4e6031f
not do ngx_http_upstream_finalize_request() twice
Igor Sysoev <igor@sysoev.ru>
parents:
756
diff
changeset
|
1148 |
| 515 | 1149 ngx_http_upstream_finalize_request(r, u, NGX_DECLINED); |
| 1150 | |
| 1151 part = &r->upstream->headers_in.headers.part; | |
| 1152 h = part->elts; | |
| 1153 | |
| 1154 for (i = 0; /* void */; i++) { | |
| 1155 | |
| 1156 if (i >= part->nelts) { | |
| 1157 if (part->next == NULL) { | |
| 1158 break; | |
| 1159 } | |
| 577 | 1160 |
| 515 | 1161 part = part->next; |
| 1162 h = part->elts; | |
| 1163 i = 0; | |
| 1164 } | |
| 1165 | |
| 649 | 1166 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, |
| 1167 h[i].lowcase_key, h[i].key.len); | |
| 1168 | |
| 1169 if (hh && hh->redirect) { | |
| 1170 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
|
787
b310630d129e
style fix: remove trailing spaces
Igor Sysoev <igor@sysoev.ru>
parents:
777
diff
changeset
|
1171 ngx_http_finalize_request(r, |
|
757
a138c4e6031f
not do ngx_http_upstream_finalize_request() twice
Igor Sysoev <igor@sysoev.ru>
parents:
756
diff
changeset
|
1172 NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 515 | 1173 return; |
| 1174 } | |
| 1175 } | |
| 1176 } | |
| 1177 | |
| 573 | 1178 uri = &r->upstream->headers_in.x_accel_redirect->value; |
| 1179 args.len = 0; | |
| 1180 args.data = NULL; | |
| 1181 flags = 0; | |
| 1182 | |
| 1183 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) { | |
|
757
a138c4e6031f
not do ngx_http_upstream_finalize_request() twice
Igor Sysoev <igor@sysoev.ru>
parents:
756
diff
changeset
|
1184 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND); |
| 573 | 1185 return; |
| 1186 } | |
| 1187 | |
| 1188 if (flags & NGX_HTTP_ZERO_IN_URI) { | |
| 1189 r->zero_in_uri = 1; | |
| 1190 } | |
| 1191 | |
| 653 | 1192 if (r->method != NGX_HTTP_HEAD) { |
| 1193 r->method = NGX_HTTP_GET; | |
| 1194 } | |
| 1195 | |
| 573 | 1196 ngx_http_internal_redirect(r, uri, &args); |
| 515 | 1197 return; |
| 1198 } | |
| 1199 | |
| 509 | 1200 part = &r->upstream->headers_in.headers.part; |
| 1201 h = part->elts; | |
| 1202 | |
| 1203 for (i = 0; /* void */; i++) { | |
| 479 | 1204 |
| 509 | 1205 if (i >= part->nelts) { |
| 1206 if (part->next == NULL) { | |
| 1207 break; | |
| 1208 } | |
| 577 | 1209 |
| 509 | 1210 part = part->next; |
| 1211 h = part->elts; | |
| 1212 i = 0; | |
| 1213 } | |
| 1214 | |
| 649 | 1215 if (ngx_hash_find(&u->conf->hide_headers_hash, h[i].hash, |
| 1216 h[i].lowcase_key, h[i].key.len)) | |
| 509 | 1217 { |
| 649 | 1218 continue; |
| 1219 } | |
| 1220 | |
| 1221 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, | |
| 1222 h[i].lowcase_key, h[i].key.len); | |
| 1223 | |
| 1224 if (hh) { | |
| 1225 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
| 509 | 1226 ngx_http_upstream_finalize_request(r, u, |
| 1227 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1228 return; | |
| 1229 } | |
| 1230 | |
| 1231 continue; | |
| 1232 } | |
| 1233 | |
| 1234 if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) { | |
| 1235 ngx_http_upstream_finalize_request(r, u, | |
| 1236 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1237 return; | |
| 1238 } | |
| 1239 } | |
| 1240 | |
| 649 | 1241 if (r->headers_out.server && r->headers_out.server->value.data == NULL) { |
| 1242 r->headers_out.server->hash = 0; | |
| 1243 } | |
| 1244 | |
| 1245 if (r->headers_out.date && r->headers_out.date->value.data == NULL) { | |
| 1246 r->headers_out.date->hash = 0; | |
| 1247 } | |
| 1248 | |
| 529 | 1249 r->headers_out.status = u->headers_in.status_n; |
| 1250 r->headers_out.status_line = u->headers_in.status_line; | |
| 1251 | |
| 581 | 1252 if (r->headers_out.content_length_n != -1) { |
| 1253 u->length = (size_t) r->headers_out.content_length_n; | |
| 1254 | |
| 1255 } else { | |
| 1256 u->length = NGX_MAX_SIZE_T_VALUE; | |
| 1257 } | |
| 1258 | |
|
777
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1259 if (!r->subrequest_in_memory) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1260 ngx_http_upstream_send_response(r, u); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1261 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1262 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1263 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1264 /* subrequest content in memory */ |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1265 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1266 if (u->input_filter == NULL) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1267 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1268 u->input_filter = ngx_http_upstream_non_buffered_filter; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1269 u->input_filter_ctx = r; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1270 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1271 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1272 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1273 ngx_http_upstream_finalize_request(r, u, |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1274 NGX_HTTP_INTERNAL_SERVER_ERROR); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1275 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1276 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1277 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1278 if (u->buffer.last - u->buffer.pos >= (ssize_t) u->length) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1279 if (u->input_filter(u->input_filter_ctx, 0) == NGX_ERROR) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1280 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1281 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1282 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1283 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1284 ngx_http_upstream_finalize_request(r, u, 0); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1285 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1286 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1287 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1288 rev->handler = ngx_http_upstream_process_body_in_memory; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1289 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1290 ngx_http_upstream_process_body_in_memory(rev); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1291 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1292 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1293 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1294 static void |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1295 ngx_http_upstream_process_body_in_memory(ngx_event_t *rev) |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1296 { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1297 size_t size; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1298 ssize_t n; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1299 ngx_buf_t *b; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1300 ngx_connection_t *c; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1301 ngx_http_request_t *r; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1302 ngx_http_upstream_t *u; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1303 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1304 c = rev->data; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1305 r = c->data; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1306 u = r->upstream; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1307 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1308 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1309 "http upstream process body on memory"); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1310 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1311 if (rev->timedout) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1312 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1313 ngx_http_upstream_finalize_request(r, u, NGX_ETIMEDOUT); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1314 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1315 } |
|
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 b = &u->buffer; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1318 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1319 for ( ;; ) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1320 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1321 size = b->end - b->last; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1322 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1323 if (size == 0) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1324 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1325 "upstream buffer is too small to read repsonse"); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1326 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1327 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1328 } |
|
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 n = c->recv(c, b->last, size); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1331 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1332 if (n == NGX_AGAIN) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1333 break; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1334 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1335 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1336 if (n == 0 || n == NGX_ERROR) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1337 ngx_http_upstream_finalize_request(r, u, n); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1338 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1339 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1340 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1341 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1342 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1343 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1344 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1345 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1346 if (!rev->ready) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1347 break; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1348 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
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 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1352 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1353 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1354 } |
|
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 if (rev->active) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1357 ngx_add_timer(rev, u->conf->read_timeout); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1358 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1359 } else if (rev->timer_set) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1360 ngx_del_timer(rev); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1361 } |
| 681 | 1362 } |
| 1363 | |
| 1364 | |
| 1365 static void | |
| 1366 ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 1367 { | |
| 1368 int tcp_nodelay; | |
| 1369 ssize_t size; | |
| 1370 ngx_int_t rc; | |
| 1371 ngx_event_pipe_t *p; | |
| 1372 ngx_connection_t *c; | |
| 1373 ngx_pool_cleanup_t *cl; | |
| 1374 ngx_pool_cleanup_file_t *clf; | |
| 1375 ngx_http_core_loc_conf_t *clcf; | |
| 1376 | |
| 509 | 1377 rc = ngx_http_send_header(r); |
| 479 | 1378 |
| 629 | 1379 if (rc == NGX_ERROR || rc > NGX_OK || r->post_action) { |
| 485 | 1380 ngx_http_upstream_finalize_request(r, u, rc); |
| 479 | 1381 return; |
| 1382 } | |
| 1383 | |
| 1384 u->header_sent = 1; | |
| 1385 | |
| 573 | 1386 if (r->request_body && r->request_body->temp_file) { |
| 563 | 1387 for (cl = r->pool->cleanup; cl; cl = cl->next) { |
| 1388 if (cl->handler == ngx_pool_cleanup_file) { | |
| 1389 clf = cl->data; | |
| 1390 | |
| 1391 if (clf->fd == r->request_body->temp_file->file.fd) { | |
| 1392 cl->handler(clf); | |
| 1393 cl->handler = NULL; | |
| 659 | 1394 r->request_body->temp_file->file.fd = NGX_INVALID_FILE; |
| 563 | 1395 break; |
| 1396 } | |
| 1397 } | |
| 1398 } | |
| 1399 } | |
| 1400 | |
| 583 | 1401 c = r->connection; |
| 1402 | |
| 581 | 1403 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
| 1404 | |
| 649 | 1405 if (!u->buffering) { |
| 581 | 1406 |
| 1407 if (u->input_filter == NULL) { | |
| 1408 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; | |
| 1409 u->input_filter = ngx_http_upstream_non_buffered_filter; | |
| 1410 u->input_filter_ctx = r; | |
| 1411 } | |
| 1412 | |
| 1413 u->peer.connection->read->handler = | |
| 1414 ngx_http_upstream_process_non_buffered_body; | |
| 1415 r->write_event_handler = | |
| 1416 ngx_http_upstream_process_non_buffered_downstream; | |
| 1417 | |
| 1418 r->limit_rate = 0; | |
| 1419 | |
| 1420 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { | |
| 1421 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1422 return; | |
| 1423 } | |
| 1424 | |
| 583 | 1425 if (clcf->tcp_nodelay && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) { |
| 1426 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay"); | |
| 1427 | |
| 1428 tcp_nodelay = 1; | |
| 1429 | |
| 1430 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY, | |
| 1431 (const void *) &tcp_nodelay, sizeof(int)) == -1) | |
| 1432 { | |
| 1433 ngx_connection_error(c, ngx_socket_errno, | |
| 1434 "setsockopt(TCP_NODELAY) failed"); | |
| 1435 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1436 return; | |
| 1437 } | |
| 1438 | |
| 1439 c->tcp_nodelay = NGX_TCP_NODELAY_SET; | |
| 1440 } | |
| 1441 | |
| 581 | 1442 size = u->buffer.last - u->buffer.pos; |
| 1443 | |
| 1444 if (size) { | |
| 1445 u->buffer.last = u->buffer.pos; | |
| 1446 | |
| 1447 if (u->input_filter(u->input_filter_ctx, size) == NGX_ERROR) { | |
| 1448 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1449 return; | |
| 1450 } | |
| 1451 | |
| 583 | 1452 ngx_http_upstream_process_non_buffered_body(c->write); |
| 581 | 1453 |
| 1454 } else { | |
| 1455 u->buffer.pos = u->buffer.start; | |
| 1456 u->buffer.last = u->buffer.start; | |
| 1457 | |
| 1458 if (ngx_http_send_special(r, NGX_HTTP_FLUSH) == NGX_ERROR) { | |
| 1459 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1460 return; | |
| 1461 } | |
| 1462 } | |
| 1463 | |
| 1464 return; | |
| 1465 } | |
| 1466 | |
| 479 | 1467 /* TODO: preallocate event_pipe bufs, look "Content-Length" */ |
| 1468 | |
| 1469 #if 0 | |
| 1470 | |
| 1471 if (u->cache && u->cache->ctx.file.fd != NGX_INVALID_FILE) { | |
| 1472 if (ngx_close_file(u->cache->ctx.file.fd) == NGX_FILE_ERROR) { | |
| 583 | 1473 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
| 479 | 1474 ngx_close_file_n " \"%s\" failed", |
| 1475 u->cache->ctx.file.name.data); | |
| 1476 } | |
| 1477 } | |
| 1478 | |
| 1479 if (u->cachable) { | |
| 581 | 1480 header = (ngx_http_cache_header_t *) u->buffer->start; |
| 479 | 1481 |
| 1482 header->expires = u->cache->ctx.expires; | |
| 1483 header->last_modified = u->cache->ctx.last_modified; | |
| 1484 header->date = u->cache->ctx.date; | |
| 1485 header->length = r->headers_out.content_length_n; | |
| 1486 u->cache->ctx.length = r->headers_out.content_length_n; | |
| 1487 | |
| 1488 header->key_len = u->cache->ctx.key0.len; | |
| 1489 ngx_memcpy(&header->key, u->cache->ctx.key0.data, header->key_len); | |
| 1490 header->key[header->key_len] = LF; | |
| 1491 } | |
| 1492 | |
| 1493 #endif | |
| 1494 | |
| 581 | 1495 p = u->pipe; |
| 479 | 1496 |
| 1497 p->output_filter = (ngx_event_pipe_output_filter_pt) ngx_http_output_filter; | |
| 1498 p->output_ctx = r; | |
| 1499 p->tag = u->output.tag; | |
| 577 | 1500 p->bufs = u->conf->bufs; |
| 479 | 1501 p->busy_size = u->conf->busy_buffers_size; |
| 1502 p->upstream = u->peer.connection; | |
| 583 | 1503 p->downstream = c; |
| 479 | 1504 p->pool = r->pool; |
| 583 | 1505 p->log = c->log; |
| 577 | 1506 |
| 479 | 1507 p->cachable = u->cachable; |
| 1508 | |
| 501 | 1509 p->temp_file = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t)); |
| 1510 if (p->temp_file == NULL) { | |
| 479 | 1511 ngx_http_upstream_finalize_request(r, u, 0); |
| 1512 return; | |
| 1513 } | |
| 1514 | |
| 1515 p->temp_file->file.fd = NGX_INVALID_FILE; | |
| 583 | 1516 p->temp_file->file.log = c->log; |
| 479 | 1517 p->temp_file->path = u->conf->temp_path; |
| 1518 p->temp_file->pool = r->pool; | |
| 577 | 1519 |
| 479 | 1520 if (u->cachable) { |
| 1521 p->temp_file->persistent = 1; | |
| 1522 } else { | |
| 667 | 1523 p->temp_file->log_level = NGX_LOG_WARN; |
| 479 | 1524 p->temp_file->warn = "an upstream response is buffered " |
| 1525 "to a temporary file"; | |
| 1526 } | |
| 1527 | |
| 1528 p->max_temp_file_size = u->conf->max_temp_file_size; | |
| 1529 p->temp_file_write_size = u->conf->temp_file_write_size; | |
| 1530 | |
| 501 | 1531 p->preread_bufs = ngx_alloc_chain_link(r->pool); |
| 1532 if (p->preread_bufs == NULL) { | |
| 479 | 1533 ngx_http_upstream_finalize_request(r, u, 0); |
| 1534 return; | |
| 1535 } | |
| 581 | 1536 p->preread_bufs->buf = &u->buffer; |
| 479 | 1537 p->preread_bufs->next = NULL; |
| 581 | 1538 u->buffer.recycled = 1; |
| 1539 | |
| 1540 p->preread_size = u->buffer.last - u->buffer.pos; | |
| 479 | 1541 |
| 1542 if (u->cachable) { | |
| 1543 p->buf_to_file = ngx_calloc_buf(r->pool); | |
| 1544 if (p->buf_to_file == NULL) { | |
| 1545 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1546 return; | |
| 1547 } | |
| 581 | 1548 p->buf_to_file->pos = u->buffer.start; |
| 1549 p->buf_to_file->last = u->buffer.pos; | |
| 479 | 1550 p->buf_to_file->temporary = 1; |
| 1551 } | |
| 1552 | |
| 1553 if (ngx_event_flags & NGX_USE_AIO_EVENT) { | |
| 1554 /* the posted aio operation may currupt a shadow buffer */ | |
| 1555 p->single_buf = 1; | |
| 1556 } | |
| 1557 | |
| 1558 /* TODO: p->free_bufs = 0 if use ngx_create_chain_of_bufs() */ | |
| 1559 p->free_bufs = 1; | |
| 1560 | |
| 1561 /* | |
| 581 | 1562 * event_pipe would do u->buffer.last += p->preread_size |
| 479 | 1563 * as though these bytes were read |
| 1564 */ | |
| 581 | 1565 u->buffer.last = u->buffer.pos; |
| 479 | 1566 |
| 1567 if (u->conf->cyclic_temp_file) { | |
| 1568 | |
| 1569 /* | |
| 1570 * we need to disable the use of sendfile() if we use cyclic temp file | |
| 1571 * because the writing a new data may interfere with sendfile() | |
| 1572 * that uses the same kernel file pages (at least on FreeBSD) | |
| 1573 */ | |
| 1574 | |
| 1575 p->cyclic_temp_file = 1; | |
| 583 | 1576 c->sendfile = 0; |
| 479 | 1577 |
| 1578 } else { | |
| 1579 p->cyclic_temp_file = 0; | |
| 1580 } | |
| 1581 | |
| 1582 p->read_timeout = u->conf->read_timeout; | |
| 1583 p->send_timeout = clcf->send_timeout; | |
| 1584 p->send_lowat = clcf->send_lowat; | |
| 1585 | |
| 509 | 1586 u->peer.connection->read->handler = ngx_http_upstream_process_body; |
| 1587 r->write_event_handler = ngx_http_upstream_process_downstream; | |
| 479 | 1588 |
| 1589 ngx_http_upstream_process_body(u->peer.connection->read); | |
| 1590 } | |
| 1591 | |
| 1592 | |
| 487 | 1593 static void |
| 581 | 1594 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r) |
| 1595 { | |
| 1596 ngx_http_upstream_process_non_buffered_body(r->connection->write); | |
| 1597 } | |
| 1598 | |
| 1599 | |
| 1600 static void | |
| 1601 ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev) | |
| 1602 { | |
| 1603 size_t size; | |
| 1604 ssize_t n; | |
| 1605 ngx_buf_t *b; | |
| 583 | 1606 ngx_int_t rc; |
| 581 | 1607 ngx_uint_t do_write; |
| 583 | 1608 ngx_connection_t *c, *client; |
| 581 | 1609 ngx_http_request_t *r; |
| 1610 ngx_http_upstream_t *u; | |
| 1611 ngx_http_core_loc_conf_t *clcf; | |
| 1612 | |
| 1613 c = ev->data; | |
|
756
d904b5cb3bba
fix building introduced by previous commit
Igor Sysoev <igor@sysoev.ru>
parents:
755
diff
changeset
|
1614 r = c->data; |
|
d904b5cb3bba
fix building introduced by previous commit
Igor Sysoev <igor@sysoev.ru>
parents:
755
diff
changeset
|
1615 u = r->upstream; |
| 581 | 1616 |
| 1617 if (ev->write) { | |
| 1618 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1619 "http upstream process non buffered downstream"); | |
| 1620 c->log->action = "sending to client"; | |
| 1621 | |
| 1622 } else { | |
| 1623 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1624 "http upstream process non buffered upstream"); | |
| 1625 c->log->action = "reading upstream"; | |
| 1626 } | |
| 1627 | |
| 1628 if (ev->timedout) { | |
| 1629 if (ev->write) { | |
| 1630 c->timedout = 1; | |
| 611 | 1631 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
| 1632 | |
| 581 | 1633 } else { |
| 611 | 1634 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
| 581 | 1635 } |
|
755
63b9dc652c3d
finalize nonbuffered request on timeout
Igor Sysoev <igor@sysoev.ru>
parents:
751
diff
changeset
|
1636 |
|
63b9dc652c3d
finalize nonbuffered request on timeout
Igor Sysoev <igor@sysoev.ru>
parents:
751
diff
changeset
|
1637 ngx_http_upstream_finalize_request(r, u, 0); |
|
63b9dc652c3d
finalize nonbuffered request on timeout
Igor Sysoev <igor@sysoev.ru>
parents:
751
diff
changeset
|
1638 return; |
| 581 | 1639 } |
| 1640 | |
| 583 | 1641 client = r->connection; |
| 581 | 1642 |
| 1643 b = &u->buffer; | |
| 1644 | |
| 1645 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 1646 | |
| 657 | 1647 do_write = ev->write || u->length == 0; |
| 581 | 1648 |
| 1649 for ( ;; ) { | |
| 1650 | |
| 1651 if (do_write) { | |
| 1652 | |
| 1653 if (u->out_bufs || u->busy_bufs) { | |
| 583 | 1654 rc = ngx_http_output_filter(r, u->out_bufs); |
| 1655 | |
| 1656 if (client->destroyed) { | |
| 1657 return; | |
| 1658 } | |
| 1659 | |
| 1660 if (rc == NGX_ERROR) { | |
| 581 | 1661 ngx_http_upstream_finalize_request(r, u, 0); |
| 1662 return; | |
| 1663 } | |
| 1664 | |
| 1665 ngx_chain_update_chains(&u->free_bufs, &u->busy_bufs, | |
| 1666 &u->out_bufs, u->output.tag); | |
| 1667 } | |
| 1668 | |
| 1669 if (u->busy_bufs == NULL) { | |
| 1670 | |
| 1671 if (u->length == 0 | |
| 1672 || u->peer.connection->read->eof | |
| 1673 || u->peer.connection->read->error) | |
| 1674 { | |
| 1675 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1676 return; | |
| 1677 } | |
| 1678 | |
| 1679 b->pos = b->start; | |
| 1680 b->last = b->start; | |
| 1681 } | |
| 1682 } | |
| 1683 | |
| 1684 size = b->end - b->last; | |
| 1685 | |
| 1686 if (size > u->length) { | |
| 1687 size = u->length; | |
| 1688 } | |
| 1689 | |
| 1690 if (size && u->peer.connection->read->ready) { | |
| 657 | 1691 |
| 581 | 1692 n = u->peer.connection->recv(u->peer.connection, b->last, size); |
| 1693 | |
| 1694 if (n == NGX_AGAIN) { | |
| 1695 break; | |
| 1696 } | |
| 1697 | |
| 1698 if (n > 0) { | |
| 1699 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { | |
| 1700 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1701 return; | |
| 1702 } | |
| 1703 } | |
| 1704 | |
| 1705 do_write = 1; | |
| 1706 | |
| 1707 continue; | |
| 1708 } | |
| 1709 | |
| 1710 break; | |
| 1711 } | |
| 1712 | |
| 583 | 1713 if (client->data == r) { |
| 1714 if (ngx_handle_write_event(client->write, clcf->send_lowat) | |
| 1715 == NGX_ERROR) | |
| 1716 { | |
| 1717 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1718 return; | |
| 1719 } | |
| 581 | 1720 } |
| 1721 | |
| 583 | 1722 if (client->write->active) { |
| 1723 ngx_add_timer(client->write, clcf->send_timeout); | |
| 1724 | |
| 1725 } else if (client->write->timer_set) { | |
| 1726 ngx_del_timer(client->write); | |
| 581 | 1727 } |
| 1728 | |
| 1729 if (ngx_handle_read_event(u->peer.connection->read, 0) == NGX_ERROR) { | |
| 1730 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1731 return; | |
| 1732 } | |
| 1733 | |
| 1734 if (u->peer.connection->read->active) { | |
| 1735 ngx_add_timer(u->peer.connection->read, u->conf->read_timeout); | |
| 1736 | |
| 583 | 1737 } else if (u->peer.connection->read->timer_set) { |
| 1738 ngx_del_timer(u->peer.connection->read); | |
| 581 | 1739 } |
| 1740 } | |
| 1741 | |
| 1742 | |
| 1743 static ngx_int_t | |
| 1744 ngx_http_upstream_non_buffered_filter_init(void *data) | |
| 1745 { | |
| 1746 return NGX_OK; | |
| 1747 } | |
| 1748 | |
| 1749 | |
| 1750 static ngx_int_t | |
| 1751 ngx_http_upstream_non_buffered_filter(void *data, ssize_t bytes) | |
| 1752 { | |
| 1753 ngx_http_request_t *r = data; | |
| 1754 | |
| 1755 ngx_buf_t *b; | |
| 1756 ngx_chain_t *cl, **ll; | |
| 1757 ngx_http_upstream_t *u; | |
| 1758 | |
| 1759 u = r->upstream; | |
| 1760 | |
| 1761 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
| 1762 ll = &cl->next; | |
| 1763 } | |
| 1764 | |
| 1765 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
| 1766 if (cl == NULL) { | |
| 1767 return NGX_ERROR; | |
| 1768 } | |
| 1769 | |
| 1770 *ll = cl; | |
| 1771 | |
| 1772 cl->buf->flush = 1; | |
| 1773 cl->buf->memory = 1; | |
| 1774 | |
| 1775 b = &u->buffer; | |
| 1776 | |
| 1777 cl->buf->pos = b->last; | |
| 1778 b->last += bytes; | |
| 1779 cl->buf->last = b->last; | |
| 1780 | |
| 1781 if (u->length == NGX_MAX_SIZE_T_VALUE) { | |
| 1782 return NGX_OK; | |
| 1783 } | |
| 1784 | |
| 1785 u->length -= bytes; | |
| 1786 | |
| 1787 return NGX_OK; | |
| 1788 } | |
| 1789 | |
| 1790 | |
| 1791 static void | |
| 509 | 1792 ngx_http_upstream_process_downstream(ngx_http_request_t *r) |
| 1793 { | |
| 1794 ngx_http_upstream_process_body(r->connection->write); | |
| 1795 } | |
| 1796 | |
| 1797 | |
| 1798 static void | |
| 487 | 1799 ngx_http_upstream_process_body(ngx_event_t *ev) |
| 479 | 1800 { |
| 509 | 1801 ngx_event_pipe_t *p; |
| 583 | 1802 ngx_connection_t *c, *downstream; |
| 479 | 1803 ngx_http_request_t *r; |
| 1804 ngx_http_upstream_t *u; | |
| 1805 | |
| 1806 c = ev->data; | |
| 1807 r = c->data; | |
| 1808 u = r->upstream; | |
| 583 | 1809 downstream = r->connection; |
| 479 | 1810 |
| 1811 if (ev->write) { | |
| 483 | 1812 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1813 "http upstream process downstream"); | |
| 1814 c->log->action = "sending to client"; | |
| 577 | 1815 |
| 479 | 1816 } else { |
| 483 | 1817 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1818 "http upstream process upstream"); | |
| 1819 c->log->action = "reading upstream"; | |
| 479 | 1820 } |
| 577 | 1821 |
| 581 | 1822 p = u->pipe; |
| 479 | 1823 |
| 1824 if (ev->timedout) { | |
| 1825 if (ev->write) { | |
| 527 | 1826 if (ev->delayed) { |
| 1827 | |
| 1828 ev->timedout = 0; | |
| 1829 ev->delayed = 0; | |
| 1830 | |
| 1831 if (!ev->ready) { | |
| 1832 ngx_add_timer(ev, p->send_timeout); | |
| 1833 | |
| 1834 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) | |
| 1835 { | |
| 1836 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1837 return; | |
| 1838 } | |
| 1839 | |
| 1840 return; | |
| 1841 } | |
| 1842 | |
| 1843 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { | |
| 583 | 1844 |
| 1845 if (downstream->destroyed) { | |
| 1846 return; | |
| 1847 } | |
| 1848 | |
| 527 | 1849 ngx_http_upstream_finalize_request(r, u, 0); |
| 1850 return; | |
| 1851 } | |
| 1852 | |
| 1853 } else { | |
| 1854 p->downstream_error = 1; | |
| 577 | 1855 c->timedout = 1; |
| 611 | 1856 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
| 527 | 1857 } |
| 479 | 1858 |
| 1859 } else { | |
| 577 | 1860 p->upstream_error = 1; |
| 611 | 1861 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
| 479 | 1862 } |
| 1863 | |
| 1864 } else { | |
| 527 | 1865 if (ev->write && ev->delayed) { |
| 1866 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1867 "http downstream delayed"); | |
| 1868 | |
| 1869 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) { | |
| 1870 return; | |
| 1871 } | |
| 1872 | |
| 1873 return; | |
| 1874 } | |
| 1875 | |
| 479 | 1876 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { |
| 583 | 1877 |
| 1878 if (downstream->destroyed) { | |
| 1879 return; | |
| 1880 } | |
| 1881 | |
| 479 | 1882 ngx_http_upstream_finalize_request(r, u, 0); |
| 1883 return; | |
| 1884 } | |
| 1885 } | |
| 577 | 1886 |
| 479 | 1887 if (u->peer.connection) { |
| 1888 | |
| 1889 #if (NGX_HTTP_FILE_CACHE) | |
| 1890 | |
| 1891 if (p->upstream_done && u->cachable) { | |
| 1892 if (ngx_http_cache_update(r) == NGX_ERROR) { | |
| 1893 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1894 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1895 return; | |
| 1896 } | |
| 1897 | |
| 1898 } else if (p->upstream_eof && u->cachable) { | |
| 1899 | |
| 1900 /* TODO: check length & update cache */ | |
| 1901 | |
| 1902 if (ngx_http_cache_update(r) == NGX_ERROR) { | |
| 1903 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1904 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1905 return; | |
| 1906 } | |
| 1907 } | |
| 1908 | |
| 1909 #endif | |
| 1910 | |
| 1911 if (p->upstream_done || p->upstream_eof || p->upstream_error) { | |
| 483 | 1912 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1913 "http upstream exit: %p", p->out); | |
| 479 | 1914 #if 0 |
| 1915 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1916 #endif | |
| 1917 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1918 return; | |
| 1919 } | |
| 1920 } | |
| 1921 | |
| 1922 if (p->downstream_error) { | |
| 483 | 1923 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1924 "http upstream downstream error"); | |
| 479 | 1925 |
| 1926 if (!u->cachable && u->peer.connection) { | |
| 1927 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1928 } | |
| 1929 } | |
| 1930 } | |
| 1931 | |
| 1932 | |
| 487 | 1933 static void |
| 1934 ngx_http_upstream_dummy_handler(ngx_event_t *wev) | |
| 479 | 1935 { |
| 1936 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
| 1937 "http upstream dummy handler"); | |
| 1938 } | |
| 1939 | |
| 1940 | |
| 487 | 1941 static void |
| 1942 ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u, | |
| 1943 ngx_uint_t ft_type) | |
| 479 | 1944 { |
| 525 | 1945 ngx_uint_t status, down; |
| 479 | 1946 |
| 1947 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1948 "http next upstream, %xD", ft_type); | |
| 1949 | |
| 1950 #if 0 | |
| 1951 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1952 #endif | |
| 1953 | |
| 525 | 1954 if (ft_type == NGX_HTTP_UPSTREAM_FT_HTTP_404) { |
| 1955 down = 0; | |
| 1956 } else { | |
| 1957 down = 1; | |
| 479 | 1958 } |
| 525 | 1959 |
| 1960 ngx_event_connect_peer_failed(&u->peer, down); | |
| 1961 | |
| 479 | 1962 if (ft_type == NGX_HTTP_UPSTREAM_FT_TIMEOUT) { |
| 1963 ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_ETIMEDOUT, | |
| 1964 "upstream timed out"); | |
| 1965 } | |
| 577 | 1966 |
| 479 | 1967 if (u->peer.cached && ft_type == NGX_HTTP_UPSTREAM_FT_ERROR) { |
| 1968 status = 0; | |
| 1969 | |
| 1970 } else { | |
| 1971 switch(ft_type) { | |
| 1972 | |
| 1973 case NGX_HTTP_UPSTREAM_FT_TIMEOUT: | |
| 1974 status = NGX_HTTP_GATEWAY_TIME_OUT; | |
| 1975 break; | |
| 1976 | |
| 1977 case NGX_HTTP_UPSTREAM_FT_HTTP_500: | |
| 1978 status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 1979 break; | |
| 1980 | |
| 1981 case NGX_HTTP_UPSTREAM_FT_HTTP_404: | |
| 1982 status = NGX_HTTP_NOT_FOUND; | |
| 1983 break; | |
| 1984 | |
| 1985 /* | |
| 1986 * NGX_HTTP_UPSTREAM_FT_BUSY_LOCK and NGX_HTTP_UPSTREAM_FT_MAX_WAITING | |
| 1987 * never reach here | |
| 1988 */ | |
| 1989 | |
| 1990 default: | |
| 1991 status = NGX_HTTP_BAD_GATEWAY; | |
| 1992 } | |
| 1993 } | |
| 1994 | |
| 583 | 1995 if (r->connection->error) { |
| 479 | 1996 ngx_http_upstream_finalize_request(r, u, |
| 1997 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 1998 return; | |
| 1999 } | |
| 2000 | |
| 2001 if (status) { | |
| 2002 u->state->status = status; | |
| 2003 | |
| 525 | 2004 if (u->peer.tries == 0 || !(u->conf->next_upstream & ft_type)) { |
| 479 | 2005 |
| 2006 #if (NGX_HTTP_CACHE) | |
| 2007 | |
| 2008 if (u->stale && (u->conf->use_stale & ft_type)) { | |
| 2009 ngx_http_upstream_finalize_request(r, u, | |
| 525 | 2010 ngx_http_send_cached_response(r)); |
| 479 | 2011 return; |
| 2012 } | |
| 2013 | |
| 2014 #endif | |
| 2015 | |
| 2016 ngx_http_upstream_finalize_request(r, u, status); | |
| 2017 return; | |
| 2018 } | |
| 2019 } | |
| 2020 | |
| 2021 if (u->peer.connection) { | |
| 2022 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2023 "close http upstream connection: %d", | |
| 2024 u->peer.connection->fd); | |
| 577 | 2025 #if (NGX_HTTP_SSL) |
| 2026 if (u->peer.connection->ssl) { | |
| 2027 ngx_http_upstream_ssl_shutdown(u->peer.connection, | |
| 2028 &u->peer.peers->peer[u->peer.cur_peer]); | |
| 2029 } | |
| 2030 #endif | |
| 479 | 2031 ngx_close_connection(u->peer.connection); |
| 2032 } | |
| 2033 | |
| 2034 #if 0 | |
| 2035 if (u->conf->busy_lock && !u->busy_locked) { | |
| 2036 ngx_http_upstream_busy_lock(p); | |
| 2037 return; | |
| 2038 } | |
| 2039 #endif | |
| 2040 | |
| 2041 ngx_http_upstream_connect(r, u); | |
| 2042 } | |
| 2043 | |
| 2044 | |
| 487 | 2045 static void |
| 569 | 2046 ngx_http_upstream_cleanup(void *data) |
| 2047 { | |
| 2048 ngx_http_request_t *r = data; | |
| 2049 | |
| 2050 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2051 "cleanup http upstream request: \"%V\"", &r->uri); | |
| 2052 | |
| 2053 ngx_http_upstream_finalize_request(r, r->upstream, NGX_DONE); | |
| 2054 } | |
| 2055 | |
| 2056 | |
| 2057 static void | |
| 487 | 2058 ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
| 2059 ngx_http_upstream_t *u, ngx_int_t rc) | |
| 479 | 2060 { |
|
850
a164e55b4067
fix negative upstream response time
Igor Sysoev <igor@sysoev.ru>
parents:
787
diff
changeset
|
2061 ngx_time_t *tp; |
|
a164e55b4067
fix negative upstream response time
Igor Sysoev <igor@sysoev.ru>
parents:
787
diff
changeset
|
2062 ngx_msec_int_t ms; |
| 563 | 2063 |
| 483 | 2064 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| 2065 "finalize http upstream request: %i", rc); | |
| 479 | 2066 |
| 569 | 2067 *u->cleanup = NULL; |
| 2068 | |
| 563 | 2069 if (u->state->response_time) { |
| 2070 tp = ngx_timeofday(); | |
|
850
a164e55b4067
fix negative upstream response time
Igor Sysoev <igor@sysoev.ru>
parents:
787
diff
changeset
|
2071 ms = tp->sec * 1000 + tp->msec - u->state->response_time; |
|
a164e55b4067
fix negative upstream response time
Igor Sysoev <igor@sysoev.ru>
parents:
787
diff
changeset
|
2072 u->state->response_time = (ms >= 0) ? ms : 0; |
| 563 | 2073 } |
| 2074 | |
| 479 | 2075 u->finalize_request(r, rc); |
| 2076 | |
| 2077 if (u->peer.connection) { | |
| 2078 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2079 "close http upstream connection: %d", | |
| 2080 u->peer.connection->fd); | |
| 577 | 2081 #if (NGX_HTTP_SSL) |
| 2082 | |
| 2083 /* TODO: do not shutdown persistent connection */ | |
| 2084 | |
| 2085 if (u->peer.connection->ssl) { | |
| 2086 ngx_http_upstream_ssl_shutdown(u->peer.connection, | |
| 2087 &u->peer.peers->peer[u->peer.cur_peer]); | |
| 2088 } | |
| 2089 #endif | |
| 479 | 2090 ngx_close_connection(u->peer.connection); |
| 2091 } | |
| 2092 | |
| 483 | 2093 u->peer.connection = NULL; |
| 2094 | |
| 563 | 2095 if (u->header_sent && (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE)) |
| 479 | 2096 { |
| 2097 rc = 0; | |
| 2098 } | |
| 2099 | |
| 581 | 2100 if (u->pipe && u->pipe->temp_file) { |
| 479 | 2101 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| 2102 "http upstream temp fd: %d", | |
| 581 | 2103 u->pipe->temp_file->file.fd); |
| 479 | 2104 } |
| 2105 | |
| 2106 #if 0 | |
| 2107 if (u->cache) { | |
| 2108 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 483 | 2109 "http upstream cache fd: %d", |
| 479 | 2110 u->cache->ctx.file.fd); |
| 2111 } | |
| 2112 #endif | |
| 2113 | |
| 515 | 2114 if (rc == NGX_DECLINED) { |
| 2115 return; | |
| 2116 } | |
| 2117 | |
| 483 | 2118 r->connection->log->action = "sending to client"; |
| 2119 | |
| 629 | 2120 if (rc == 0 && r == r->main && !r->post_action) { |
| 581 | 2121 rc = ngx_http_send_special(r, NGX_HTTP_LAST); |
| 479 | 2122 } |
| 2123 | |
| 2124 ngx_http_finalize_request(r, rc); | |
| 2125 } | |
| 2126 | |
| 2127 | |
| 577 | 2128 #if (NGX_HTTP_SSL) |
| 2129 | |
| 2130 static void | |
| 2131 ngx_http_upstream_ssl_shutdown(ngx_connection_t *c, ngx_peer_t *peer) | |
| 2132 { | |
| 2133 /* lock peer mutex */ | |
| 2134 | |
| 2135 if (peer->ssl_session) { | |
| 2136 ngx_ssl_free_session(peer->ssl_session); | |
| 2137 } | |
| 2138 | |
| 2139 peer->ssl_session = ngx_ssl_get_session(c); | |
| 2140 | |
| 2141 /* unlock peer mutex */ | |
| 2142 | |
| 2143 /* | |
| 2144 * We send the "close notify" shutdown alert to the upstream only | |
| 2145 * and do not wait its "close notify" shutdown alert. | |
| 2146 * It is acceptable according to the TLS standard. | |
| 2147 */ | |
| 2148 | |
| 2149 c->ssl->no_wait_shutdown = 1; | |
| 2150 | |
| 2151 (void) ngx_ssl_shutdown(c); | |
| 2152 } | |
| 2153 | |
| 2154 #endif | |
| 2155 | |
| 2156 | |
| 509 | 2157 static ngx_int_t |
| 2158 ngx_http_upstream_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2159 ngx_uint_t offset) | |
| 577 | 2160 { |
| 509 | 2161 ngx_table_elt_t **ph; |
| 577 | 2162 |
| 509 | 2163 ph = (ngx_table_elt_t **) ((char *) &r->upstream->headers_in + offset); |
| 2164 | |
| 2165 if (*ph == NULL) { | |
| 2166 *ph = h; | |
| 2167 } | |
| 2168 | |
| 2169 return NGX_OK; | |
| 2170 } | |
| 2171 | |
| 2172 | |
| 2173 static ngx_int_t | |
| 2174 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
| 2175 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2176 { | |
| 2177 ngx_array_t *pa; | |
| 2178 ngx_table_elt_t **ph; | |
| 2179 | |
| 2180 pa = (ngx_array_t *) ((char *) &r->upstream->headers_in + offset); | |
| 2181 | |
| 2182 if (pa->elts == NULL) { | |
| 2183 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
| 2184 { | |
| 2185 return NGX_ERROR; | |
| 2186 } | |
| 2187 } | |
| 2188 | |
| 2189 ph = ngx_array_push(pa); | |
| 2190 if (ph == NULL) { | |
| 2191 return NGX_ERROR; | |
| 2192 } | |
| 2193 | |
| 2194 *ph = h; | |
| 2195 | |
| 2196 return NGX_OK; | |
| 2197 } | |
| 2198 | |
| 2199 | |
| 2200 static ngx_int_t | |
| 2201 ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2202 ngx_uint_t offset) | |
| 2203 { | |
| 2204 return NGX_OK; | |
| 2205 } | |
| 2206 | |
| 2207 | |
| 2208 static ngx_int_t | |
| 527 | 2209 ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2210 ngx_uint_t offset) | |
| 577 | 2211 { |
| 527 | 2212 ngx_int_t n; |
| 2213 | |
| 2214 r->upstream->headers_in.x_accel_limit_rate = h; | |
| 2215 | |
| 2216 n = ngx_atoi(h->value.data, h->value.len); | |
| 2217 | |
| 2218 if (n != NGX_ERROR) { | |
| 2219 r->limit_rate = (size_t) n; | |
| 2220 } | |
| 2221 | |
| 2222 return NGX_OK; | |
| 2223 } | |
| 2224 | |
| 2225 | |
| 2226 static ngx_int_t | |
| 649 | 2227 ngx_http_upstream_process_buffering(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2228 ngx_uint_t offset) | |
| 2229 { | |
| 2230 u_char c0, c1, c2; | |
| 2231 | |
| 2232 if (r->upstream->conf->change_buffering) { | |
| 2233 | |
| 2234 if (h->value.len == 2) { | |
| 2235 c0 = ngx_tolower(h->value.data[0]); | |
| 2236 c1 = ngx_tolower(h->value.data[1]); | |
| 2237 | |
| 2238 if (c0 == 'n' && c1 == 'o') { | |
| 2239 r->upstream->buffering = 0; | |
| 2240 } | |
| 2241 | |
| 2242 } else if (h->value.len == 3) { | |
| 2243 c0 = ngx_tolower(h->value.data[0]); | |
| 2244 c1 = ngx_tolower(h->value.data[1]); | |
| 2245 c2 = ngx_tolower(h->value.data[2]); | |
| 2246 | |
| 2247 if (c0 == 'y' && c1 == 'e' && c2 == 's') { | |
| 2248 r->upstream->buffering = 1; | |
| 2249 } | |
| 2250 } | |
| 2251 } | |
| 2252 | |
| 2253 return NGX_OK; | |
| 2254 } | |
| 2255 | |
| 2256 | |
| 2257 static ngx_int_t | |
| 657 | 2258 ngx_http_upstream_process_charset(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2259 ngx_uint_t offset) | |
| 2260 { | |
| 2261 r->headers_out.override_charset = &h->value; | |
| 2262 | |
| 2263 return NGX_OK; | |
| 2264 } | |
| 2265 | |
| 2266 | |
| 2267 static ngx_int_t | |
| 509 | 2268 ngx_http_upstream_copy_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2269 ngx_uint_t offset) | |
| 2270 { | |
| 573 | 2271 ngx_table_elt_t *ho, **ph; |
| 509 | 2272 |
| 2273 ho = ngx_list_push(&r->headers_out.headers); | |
| 2274 if (ho == NULL) { | |
| 2275 return NGX_ERROR; | |
| 2276 } | |
| 2277 | |
| 2278 *ho = *h; | |
| 2279 | |
| 573 | 2280 if (offset) { |
| 2281 ph = (ngx_table_elt_t **) ((char *) &r->headers_out + offset); | |
| 2282 *ph = ho; | |
| 2283 } | |
| 2284 | |
| 509 | 2285 return NGX_OK; |
| 2286 } | |
| 2287 | |
| 2288 | |
| 2289 static ngx_int_t | |
| 2290 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r, | |
| 2291 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2292 { | |
| 2293 ngx_array_t *pa; | |
| 2294 ngx_table_elt_t *ho, **ph; | |
| 2295 | |
| 2296 pa = (ngx_array_t *) ((char *) &r->headers_out + offset); | |
| 2297 | |
| 2298 if (pa->elts == NULL) { | |
| 2299 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
| 2300 { | |
| 2301 return NGX_ERROR; | |
| 2302 } | |
| 2303 } | |
| 2304 | |
| 2305 ph = ngx_array_push(pa); | |
| 2306 if (ph == NULL) { | |
| 2307 return NGX_ERROR; | |
| 2308 } | |
| 2309 | |
| 2310 ho = ngx_list_push(&r->headers_out.headers); | |
| 2311 if (ho == NULL) { | |
| 2312 return NGX_ERROR; | |
| 2313 } | |
| 2314 | |
| 2315 *ho = *h; | |
| 2316 *ph = ho; | |
| 2317 | |
| 2318 return NGX_OK; | |
| 2319 } | |
| 2320 | |
| 2321 | |
| 2322 static ngx_int_t | |
| 2323 ngx_http_upstream_copy_content_type(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2324 ngx_uint_t offset) | |
| 2325 { | |
| 657 | 2326 u_char *p, *last; |
| 2327 | |
| 2328 r->headers_out.content_type_len = h->value.len; | |
| 509 | 2329 r->headers_out.content_type = h->value; |
| 2330 | |
| 657 | 2331 for (p = h->value.data; *p; p++) { |
| 2332 | |
| 2333 if (*p != ';') { | |
| 2334 continue; | |
| 2335 } | |
| 2336 | |
| 2337 last = p; | |
| 2338 | |
| 2339 while (*++p == ' ') { /* void */ } | |
| 2340 | |
| 2341 if (ngx_strncasecmp(p, "charset=", 8) != 0) { | |
| 2342 continue; | |
| 2343 } | |
| 2344 | |
| 2345 p += 8; | |
| 2346 | |
| 2347 r->headers_out.content_type_len = last - h->value.data; | |
| 2348 | |
| 2349 r->headers_out.charset.len = h->value.data + h->value.len - p; | |
| 2350 r->headers_out.charset.data = p; | |
| 2351 } | |
| 2352 | |
| 509 | 2353 return NGX_OK; |
| 2354 } | |
| 2355 | |
| 2356 | |
| 2357 static ngx_int_t | |
| 2358 ngx_http_upstream_copy_content_length(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2359 ngx_uint_t offset) | |
| 2360 { | |
| 2361 ngx_table_elt_t *ho; | |
| 2362 | |
| 2363 ho = ngx_list_push(&r->headers_out.headers); | |
| 2364 if (ho == NULL) { | |
| 2365 return NGX_ERROR; | |
| 2366 } | |
| 2367 | |
| 2368 *ho = *h; | |
| 2369 | |
| 2370 r->headers_out.content_length = ho; | |
| 2371 r->headers_out.content_length_n = ngx_atoof(h->value.data, h->value.len); | |
| 2372 | |
| 2373 return NGX_OK; | |
| 2374 } | |
| 2375 | |
| 2376 | |
| 2377 static ngx_int_t | |
| 2378 ngx_http_upstream_rewrite_location(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2379 ngx_uint_t offset) | |
| 2380 { | |
| 2381 ngx_int_t rc; | |
| 2382 ngx_table_elt_t *ho; | |
| 2383 | |
| 2384 ho = ngx_list_push(&r->headers_out.headers); | |
| 2385 if (ho == NULL) { | |
| 2386 return NGX_ERROR; | |
| 2387 } | |
| 2388 | |
| 2389 *ho = *h; | |
| 2390 | |
| 2391 if (r->upstream->rewrite_redirect) { | |
| 2392 rc = r->upstream->rewrite_redirect(r, ho, 0); | |
| 2393 | |
| 529 | 2394 if (rc == NGX_DECLINED) { |
| 2395 return NGX_OK; | |
| 2396 } | |
| 2397 | |
| 509 | 2398 if (rc == NGX_OK) { |
| 2399 r->headers_out.location = ho; | |
| 2400 | |
| 2401 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2402 "rewritten location: \"%V\"", &ho->value); | |
| 2403 } | |
| 2404 | |
| 2405 return rc; | |
| 2406 } | |
| 2407 | |
| 2408 /* | |
| 2409 * we do not set r->headers_out.location here to avoid the handling | |
| 2410 * the local redirects without a host name by ngx_http_header_filter() | |
| 2411 */ | |
| 2412 | |
| 2413 return NGX_OK; | |
| 2414 } | |
| 2415 | |
| 2416 | |
| 2417 static ngx_int_t | |
| 2418 ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2419 ngx_uint_t offset) | |
| 2420 { | |
| 2421 u_char *p; | |
| 2422 ngx_int_t rc; | |
| 2423 ngx_table_elt_t *ho; | |
| 2424 | |
| 2425 ho = ngx_list_push(&r->headers_out.headers); | |
| 2426 if (ho == NULL) { | |
| 2427 return NGX_ERROR; | |
| 2428 } | |
| 2429 | |
| 2430 *ho = *h; | |
| 2431 | |
| 2432 if (r->upstream->rewrite_redirect) { | |
| 2433 | |
| 2434 p = (u_char *) ngx_strstr(ho->value.data, "url="); | |
| 2435 | |
| 2436 if (p) { | |
| 2437 rc = r->upstream->rewrite_redirect(r, ho, p + 4 - ho->value.data); | |
| 2438 | |
| 2439 } else { | |
| 2440 return NGX_OK; | |
| 2441 } | |
| 2442 | |
| 529 | 2443 if (rc == NGX_DECLINED) { |
| 2444 return NGX_OK; | |
| 2445 } | |
| 2446 | |
| 509 | 2447 #if (NGX_DEBUG) |
| 2448 if (rc == NGX_OK) { | |
| 2449 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2450 "rewritten refresh: \"%V\"", &ho->value); | |
| 2451 } | |
| 2452 #endif | |
| 2453 | |
| 2454 return rc; | |
| 2455 } | |
| 2456 | |
| 2457 return NGX_OK; | |
| 2458 } | |
| 2459 | |
| 2460 | |
| 2461 #if (NGX_HTTP_GZIP) | |
| 2462 | |
| 2463 static ngx_int_t | |
| 2464 ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
| 2465 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2466 { | |
| 2467 ngx_table_elt_t *ho; | |
| 2468 | |
| 2469 ho = ngx_list_push(&r->headers_out.headers); | |
| 2470 if (ho == NULL) { | |
| 2471 return NGX_ERROR; | |
| 2472 } | |
| 2473 | |
| 2474 *ho = *h; | |
| 2475 | |
| 2476 r->headers_out.content_encoding = ho; | |
| 2477 | |
| 2478 return NGX_OK; | |
| 2479 } | |
| 2480 | |
| 2481 #endif | |
| 2482 | |
| 2483 | |
| 487 | 2484 static size_t |
| 2485 ngx_http_upstream_log_status_getlen(ngx_http_request_t *r, uintptr_t data) | |
| 479 | 2486 { |
| 2487 if (r->upstream) { | |
| 2488 return r->upstream->states.nelts * (3 + 2); | |
| 2489 } | |
| 2490 | |
| 2491 return 1; | |
| 2492 } | |
| 2493 | |
| 2494 | |
| 487 | 2495 static u_char * |
| 2496 ngx_http_upstream_log_status(ngx_http_request_t *r, u_char *buf, | |
| 2497 ngx_http_log_op_t *op) | |
| 479 | 2498 { |
| 2499 ngx_uint_t i; | |
| 2500 ngx_http_upstream_t *u; | |
| 2501 ngx_http_upstream_state_t *state; | |
| 2502 | |
| 2503 u = r->upstream; | |
| 2504 | |
| 573 | 2505 if (u == NULL || u->states.nelts == 0) { |
| 479 | 2506 *buf = '-'; |
| 2507 return buf + 1; | |
| 2508 } | |
| 2509 | |
| 2510 i = 0; | |
| 2511 state = u->states.elts; | |
| 2512 | |
| 2513 for ( ;; ) { | |
| 2514 if (state[i].status == 0) { | |
| 2515 *buf++ = '-'; | |
| 2516 | |
| 2517 } else { | |
| 2518 buf = ngx_sprintf(buf, "%ui", state[i].status); | |
| 2519 } | |
| 2520 | |
| 2521 if (++i == u->states.nelts) { | |
| 2522 return buf; | |
| 2523 } | |
| 2524 | |
| 2525 *buf++ = ','; | |
| 2526 *buf++ = ' '; | |
| 2527 } | |
| 2528 } | |
| 2529 | |
| 2530 | |
| 573 | 2531 static size_t |
| 2532 ngx_http_upstream_log_response_time_getlen(ngx_http_request_t *r, | |
| 2533 uintptr_t data) | |
| 2534 { | |
| 2535 if (r->upstream) { | |
| 2536 return r->upstream->states.nelts * (NGX_TIME_T_LEN + 4 + 2); | |
| 2537 } | |
| 2538 | |
| 2539 return 1; | |
| 2540 } | |
| 2541 | |
| 2542 | |
| 509 | 2543 static u_char * |
| 563 | 2544 ngx_http_upstream_log_response_time(ngx_http_request_t *r, u_char *buf, |
| 2545 ngx_http_log_op_t *op) | |
| 2546 { | |
| 2547 ngx_uint_t i; | |
| 2548 ngx_http_upstream_t *u; | |
| 2549 ngx_http_upstream_state_t *state; | |
| 2550 | |
| 2551 u = r->upstream; | |
| 2552 | |
| 573 | 2553 if (u == NULL || u->states.nelts == 0) { |
| 563 | 2554 *buf = '-'; |
| 2555 return buf + 1; | |
| 2556 } | |
| 2557 | |
| 2558 i = 0; | |
| 2559 state = u->states.elts; | |
| 2560 | |
| 2561 for ( ;; ) { | |
| 2562 if (state[i].status == 0) { | |
| 2563 *buf++ = '-'; | |
| 2564 | |
| 2565 } else { | |
| 2566 buf = ngx_sprintf(buf, "%d.%03d", | |
| 2567 state[i].response_time / 1000, | |
| 2568 state[i].response_time % 1000); | |
| 2569 } | |
| 2570 | |
| 2571 if (++i == u->states.nelts) { | |
| 2572 return buf; | |
| 2573 } | |
| 2574 | |
| 2575 *buf++ = ','; | |
| 2576 *buf++ = ' '; | |
| 2577 } | |
| 2578 } | |
| 2579 | |
| 2580 | |
| 487 | 2581 static ngx_int_t |
| 573 | 2582 ngx_http_upstream_add_variables(ngx_conf_t *cf) |
| 479 | 2583 { |
| 573 | 2584 ngx_http_variable_t *var, *v; |
| 479 | 2585 ngx_http_log_op_name_t *op; |
| 2586 | |
| 573 | 2587 for (v = ngx_http_upstream_vars; v->name.len; v++) { |
| 2588 var = ngx_http_add_variable(cf, &v->name, v->flags); | |
| 2589 if (var == NULL) { | |
| 2590 return NGX_ERROR; | |
| 2591 } | |
| 2592 | |
| 637 | 2593 var->get_handler = v->get_handler; |
| 573 | 2594 var->data = v->data; |
| 2595 } | |
| 2596 | |
| 479 | 2597 for (op = ngx_http_upstream_log_fmt_ops; op->name.len; op++) { /* void */ } |
| 2598 op->run = NULL; | |
| 2599 | |
| 2600 for (op = ngx_http_log_fmt_ops; op->run; op++) { | |
| 2601 if (op->name.len == 0) { | |
| 2602 op = (ngx_http_log_op_name_t *) op->run; | |
| 2603 } | |
| 2604 } | |
| 2605 | |
| 2606 op->run = (ngx_http_log_op_run_pt) ngx_http_upstream_log_fmt_ops; | |
| 2607 | |
| 2608 return NGX_OK; | |
| 2609 } | |
| 509 | 2610 |
| 2611 | |
| 573 | 2612 static ngx_int_t |
| 2613 ngx_http_upstream_status_variable(ngx_http_request_t *r, | |
| 2614 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2615 { | |
| 2616 u_char *p; | |
| 2617 size_t len; | |
| 2618 ngx_uint_t i; | |
| 2619 ngx_http_upstream_t *u; | |
| 2620 ngx_http_upstream_state_t *state; | |
| 2621 | |
| 2622 v->valid = 1; | |
| 2623 v->no_cachable = 0; | |
| 2624 v->not_found = 0; | |
| 2625 | |
| 2626 u = r->upstream; | |
| 2627 | |
| 2628 if (u == NULL || u->states.nelts == 0) { | |
| 2629 v->not_found = 1; | |
| 2630 return NGX_OK; | |
| 2631 } | |
| 2632 | |
| 2633 len = u->states.nelts * (3 + 2); | |
| 2634 | |
| 2635 p = ngx_palloc(r->pool, len); | |
| 2636 if (p == NULL) { | |
| 2637 return NGX_ERROR; | |
| 2638 } | |
| 2639 | |
| 2640 v->data = p; | |
| 2641 | |
| 2642 i = 0; | |
| 2643 state = u->states.elts; | |
| 2644 | |
| 2645 for ( ;; ) { | |
| 2646 if (state[i].status == 0) { | |
| 2647 *p++ = '-'; | |
| 2648 | |
| 2649 } else { | |
| 2650 p = ngx_sprintf(p, "%ui", state[i].status); | |
| 2651 } | |
| 2652 | |
| 2653 if (++i == u->states.nelts) { | |
| 2654 break; | |
| 2655 } | |
| 2656 | |
| 2657 *p++ = ','; | |
| 2658 *p++ = ' '; | |
| 2659 } | |
| 2660 | |
| 2661 v->len = p - v->data; | |
| 2662 | |
| 2663 return NGX_OK; | |
| 2664 } | |
| 2665 | |
| 2666 | |
| 2667 static ngx_int_t | |
| 2668 ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
| 2669 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2670 { | |
| 2671 u_char *p; | |
| 2672 size_t len; | |
| 2673 ngx_uint_t i; | |
| 2674 ngx_http_upstream_t *u; | |
| 2675 ngx_http_upstream_state_t *state; | |
| 2676 | |
| 2677 v->valid = 1; | |
| 2678 v->no_cachable = 0; | |
| 2679 v->not_found = 0; | |
| 2680 | |
| 2681 u = r->upstream; | |
| 2682 | |
| 2683 if (u == NULL || u->states.nelts == 0) { | |
| 2684 v->not_found = 1; | |
| 2685 return NGX_OK; | |
| 2686 } | |
| 2687 | |
| 2688 len = u->states.nelts * (NGX_TIME_T_LEN + 4 + 2); | |
| 2689 | |
| 2690 p = ngx_palloc(r->pool, len); | |
| 2691 if (p == NULL) { | |
| 2692 return NGX_ERROR; | |
| 2693 } | |
| 2694 | |
| 2695 v->data = p; | |
| 2696 | |
| 2697 i = 0; | |
| 2698 state = u->states.elts; | |
| 2699 | |
| 2700 for ( ;; ) { | |
| 2701 if (state[i].status == 0) { | |
| 2702 *p++ = '-'; | |
| 2703 | |
| 2704 } else { | |
| 2705 p = ngx_sprintf(p, "%d.%03d", | |
| 2706 state[i].response_time / 1000, | |
| 2707 state[i].response_time % 1000); | |
| 2708 } | |
| 2709 | |
| 2710 if (++i == u->states.nelts) { | |
| 2711 break; | |
| 2712 } | |
| 2713 | |
| 2714 *p++ = ','; | |
| 2715 *p++ = ' '; | |
| 2716 } | |
| 2717 | |
| 2718 v->len = p - v->data; | |
| 2719 | |
| 2720 return NGX_OK; | |
| 2721 } | |
| 2722 | |
| 2723 | |
| 651 | 2724 static char * |
| 2725 ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy) | |
| 2726 { | |
| 2727 char *rv; | |
| 2728 void *mconf; | |
| 2729 ngx_str_t *value; | |
| 2730 ngx_url_t u; | |
| 2731 ngx_uint_t i, j, m, n; | |
| 2732 ngx_conf_t pcf; | |
| 2733 ngx_peers_t **peers; | |
| 2734 ngx_http_module_t *module; | |
| 2735 ngx_http_conf_ctx_t *ctx; | |
| 2736 ngx_http_upstream_srv_conf_t *uscf; | |
| 2737 | |
| 2738 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); | |
| 2739 if (ctx == NULL) { | |
| 2740 return NGX_CONF_ERROR; | |
| 2741 } | |
| 2742 | |
| 2743 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 2744 | |
| 2745 value = cf->args->elts; | |
| 2746 u.host = value[1]; | |
| 2747 | |
| 2748 uscf = ngx_http_upstream_add(cf, &u); | |
| 2749 if (uscf == NULL) { | |
| 2750 return NGX_CONF_ERROR; | |
| 2751 } | |
| 2752 | |
| 2753 /* the upstream{}'s srv_conf */ | |
| 2754 | |
| 2755 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 2756 if (ctx->srv_conf == NULL) { | |
| 2757 return NGX_CONF_ERROR; | |
| 2758 } | |
| 2759 | |
| 2760 ctx->srv_conf[ngx_http_upstream_module.ctx_index] = uscf; | |
| 2761 | |
| 2762 | |
| 2763 /* the upstream{}'s loc_conf */ | |
| 2764 | |
| 2765 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 2766 if (ctx->loc_conf == NULL) { | |
| 2767 return NGX_CONF_ERROR; | |
| 2768 } | |
| 2769 | |
| 2770 for (m = 0; ngx_modules[m]; m++) { | |
| 2771 if (ngx_modules[m]->type != NGX_HTTP_MODULE) { | |
| 2772 continue; | |
| 2773 } | |
| 2774 | |
| 2775 module = ngx_modules[m]->ctx; | |
| 2776 | |
| 2777 if (module->create_loc_conf) { | |
| 2778 mconf = module->create_loc_conf(cf); | |
| 2779 if (mconf == NULL) { | |
| 2780 return NGX_CONF_ERROR; | |
| 2781 } | |
| 2782 | |
| 2783 ctx->loc_conf[ngx_modules[m]->ctx_index] = mconf; | |
| 2784 } | |
| 2785 } | |
| 2786 | |
| 2787 | |
| 2788 /* parse inside upstream{} */ | |
| 2789 | |
| 2790 pcf = *cf; | |
| 2791 cf->ctx = ctx; | |
| 2792 cf->cmd_type = NGX_HTTP_UPS_CONF; | |
| 2793 | |
| 2794 rv = ngx_conf_parse(cf, NULL); | |
| 2795 | |
| 2796 *cf = pcf; | |
| 2797 | |
| 2798 if (rv != NGX_CONF_OK) { | |
| 2799 return rv; | |
| 2800 } | |
| 2801 | |
| 2802 if (uscf->servers == NULL) { | |
| 2803 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 2804 "no servers are inside upstream"); | |
| 2805 return NGX_CONF_ERROR; | |
| 2806 } | |
| 2807 | |
| 2808 peers = uscf->servers->elts; | |
| 2809 | |
| 2810 if (uscf->servers->nelts == 1) { | |
| 2811 uscf->peers = peers[0]; | |
| 2812 } | |
| 2813 | |
| 2814 n = 0; | |
| 2815 | |
| 2816 for (i = 0; i < uscf->servers->nelts; i++) { | |
| 2817 n += peers[i]->number; | |
| 2818 } | |
| 2819 | |
| 2820 uscf->peers = ngx_pcalloc(cf->pool, | |
| 2821 sizeof(ngx_peers_t) + sizeof(ngx_peer_t) * (n - 1)); | |
| 2822 if (uscf->peers == NULL) { | |
| 2823 return NGX_CONF_ERROR; | |
| 2824 } | |
| 2825 | |
| 2826 uscf->peers->number = n; | |
| 2827 | |
| 2828 n = 0; | |
| 2829 | |
| 2830 for (i = 0; i < uscf->servers->nelts; i++) { | |
| 2831 for (j = 0; j < peers[i]->number; j++) { | |
| 2832 uscf->peers->peer[n++] = peers[i]->peer[j]; | |
| 2833 } | |
| 2834 } | |
| 2835 | |
| 2836 return rv; | |
| 2837 } | |
| 2838 | |
| 2839 | |
| 2840 static char * | |
| 2841 ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 2842 { | |
| 2843 ngx_http_upstream_srv_conf_t *uscf = conf; | |
| 2844 | |
| 2845 ngx_str_t *value; | |
| 2846 ngx_url_t u; | |
| 663 | 2847 ngx_int_t weight; |
| 2848 ngx_uint_t i; | |
| 651 | 2849 ngx_peers_t **peers; |
| 2850 | |
| 2851 if (uscf->servers == NULL) { | |
| 2852 uscf->servers = ngx_array_create(cf->pool, 4, sizeof(ngx_peers_t *)); | |
| 2853 if (uscf->servers == NULL) { | |
| 2854 return NGX_CONF_ERROR; | |
| 2855 } | |
| 2856 } | |
| 2857 | |
| 2858 peers = ngx_array_push(uscf->servers); | |
| 2859 if (peers == NULL) { | |
| 2860 return NGX_CONF_ERROR; | |
| 2861 } | |
| 2862 | |
| 2863 value = cf->args->elts; | |
| 2864 | |
| 2865 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 2866 | |
| 2867 u.url = value[1]; | |
| 2868 u.default_portn = 80; | |
| 2869 | |
| 2870 if (ngx_parse_url(cf, &u) != NGX_OK) { | |
| 2871 if (u.err) { | |
| 2872 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 2873 "%s in upstream \"%V\"", u.err, &u.url); | |
| 2874 } | |
| 2875 | |
| 2876 return NGX_CONF_ERROR; | |
| 2877 } | |
| 2878 | |
| 663 | 2879 weight = 1; |
| 2880 | |
| 2881 if (cf->args->nelts == 3) { | |
| 2882 | |
| 2883 value = &value[2]; | |
| 2884 | |
| 2885 if (ngx_strncmp(value->data, "weight=", 7) == 0) { | |
| 2886 | |
| 2887 weight = ngx_atoi(&value->data[7], value->len - 7); | |
| 2888 | |
| 2889 if (weight == NGX_ERROR || weight == 0) { | |
| 2890 goto invalid; | |
| 2891 } | |
| 2892 | |
| 2893 } else { | |
| 2894 goto invalid; | |
| 2895 } | |
| 2896 } | |
| 2897 | |
| 2898 for (i = 0; i < u.peers->number; i++) { | |
| 2899 u.peers->peer[i].weight = weight; | |
| 2900 u.peers->peer[i].current_weight = weight; | |
| 2901 u.peers->peer[i].max_fails = NGX_CONF_UNSET_UINT; | |
| 2902 u.peers->peer[i].fail_timeout = NGX_CONF_UNSET; | |
| 2903 } | |
| 2904 | |
| 651 | 2905 *peers = u.peers; |
| 2906 | |
| 2907 return NGX_CONF_OK; | |
| 663 | 2908 |
| 2909 invalid: | |
| 2910 | |
| 2911 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameter \"%V\"", value); | |
| 2912 | |
| 2913 return NGX_CONF_ERROR; | |
| 651 | 2914 } |
| 2915 | |
| 2916 | |
| 2917 ngx_http_upstream_srv_conf_t * | |
| 2918 ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u) | |
| 2919 { | |
| 2920 ngx_uint_t i; | |
| 2921 ngx_http_upstream_srv_conf_t *uscf, **uscfp; | |
| 2922 ngx_http_upstream_main_conf_t *umcf; | |
| 2923 | |
| 2924 if (u->upstream) { | |
| 2925 if (ngx_parse_url(cf, u) != NGX_OK) { | |
| 2926 if (u->err) { | |
| 2927 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 2928 "%s in upstream \"%V\"", u->err, &u->url); | |
| 2929 } | |
| 2930 | |
| 2931 return NULL; | |
| 2932 } | |
| 2933 | |
| 2934 if (u->peers) { | |
| 2935 uscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_srv_conf_t)); | |
| 2936 if (uscf == NULL) { | |
| 2937 return NULL; | |
| 2938 } | |
| 2939 | |
| 2940 uscf->peers = u->peers; | |
| 2941 | |
| 2942 return uscf; | |
| 2943 } | |
| 2944 } | |
| 2945 | |
| 2946 umcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_upstream_module); | |
| 2947 | |
| 2948 uscfp = umcf->upstreams.elts; | |
| 2949 | |
| 2950 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
| 2951 if (uscfp[i]->host.len != u->host.len) { | |
| 2952 continue; | |
| 2953 } | |
| 2954 | |
| 2955 if (ngx_strncasecmp(uscfp[i]->host.data, u->host.data, u->host.len) | |
| 2956 == 0) | |
| 2957 { | |
| 2958 return uscfp[i]; | |
| 2959 } | |
| 2960 } | |
| 2961 | |
| 2962 uscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_srv_conf_t)); | |
| 2963 if (uscf == NULL) { | |
| 2964 return NULL; | |
| 2965 } | |
| 2966 | |
| 2967 uscf->host = u->host; | |
| 2968 uscf->file_name = cf->conf_file->file.name; | |
| 2969 uscf->line = cf->conf_file->line; | |
| 2970 uscf->port = u->default_portn; | |
| 2971 | |
| 2972 uscfp = ngx_array_push(&umcf->upstreams); | |
| 2973 if (uscfp == NULL) { | |
| 2974 return NULL; | |
| 2975 } | |
| 2976 | |
| 2977 *uscfp = uscf; | |
| 2978 | |
| 2979 return uscf; | |
| 2980 } | |
| 2981 | |
| 2982 | |
| 509 | 2983 static void * |
| 2984 ngx_http_upstream_create_main_conf(ngx_conf_t *cf) | |
| 2985 { | |
| 2986 ngx_http_upstream_main_conf_t *umcf; | |
| 2987 | |
| 2988 umcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_main_conf_t)); | |
| 2989 if (umcf == NULL) { | |
| 2990 return NULL; | |
| 2991 } | |
| 2992 | |
| 651 | 2993 if (ngx_array_init(&umcf->upstreams, cf->pool, 4, |
| 2994 sizeof(ngx_http_upstream_srv_conf_t *)) | |
| 2995 != NGX_OK) | |
| 2996 { | |
| 2997 return NGX_CONF_ERROR; | |
| 2998 } | |
| 2999 | |
| 509 | 3000 return umcf; |
| 3001 } | |
| 3002 | |
| 3003 | |
| 3004 static char * | |
| 651 | 3005 ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf) |
| 509 | 3006 { |
| 3007 ngx_http_upstream_main_conf_t *umcf = conf; | |
| 3008 | |
| 651 | 3009 ngx_uint_t i; |
| 3010 ngx_array_t headers_in; | |
| 3011 ngx_hash_key_t *hk; | |
| 3012 ngx_hash_init_t hash; | |
| 3013 ngx_http_upstream_header_t *header; | |
| 3014 ngx_http_upstream_srv_conf_t **uscfp; | |
| 3015 | |
| 3016 uscfp = umcf->upstreams.elts; | |
| 3017 | |
| 3018 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
| 3019 if (uscfp[i]->peers) { | |
| 3020 continue; | |
| 3021 } | |
| 3022 | |
| 3023 uscfp[i]->peers = ngx_inet_resolve_peer(cf, &uscfp[i]->host, | |
| 663 | 3024 uscfp[i]->port); |
| 651 | 3025 if (uscfp[i]->peers == NULL) { |
| 3026 return NGX_CONF_ERROR; | |
| 3027 } | |
| 3028 | |
| 3029 if (uscfp[i]->peers == NGX_CONF_ERROR) { | |
| 3030 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 3031 "upstream host \"%V\" is not found in %s:%ui", | |
| 3032 &uscfp[i]->host, uscfp[i]->file_name.data, | |
| 3033 uscfp[i]->line); | |
| 3034 return NGX_CONF_ERROR; | |
| 3035 } | |
| 3036 } | |
| 649 | 3037 |
| 663 | 3038 |
| 649 | 3039 if (ngx_array_init(&headers_in, cf->temp_pool, 32, sizeof(ngx_hash_key_t)) |
| 3040 != NGX_OK) | |
| 509 | 3041 { |
| 3042 return NGX_CONF_ERROR; | |
| 3043 } | |
| 3044 | |
| 649 | 3045 for (header = ngx_http_upstream_headers_in; header->name.len; header++) { |
| 3046 hk = ngx_array_push(&headers_in); | |
| 3047 if (hk == NULL) { | |
| 3048 return NGX_CONF_ERROR; | |
| 3049 } | |
| 3050 | |
| 3051 hk->key = header->name; | |
| 3052 hk->key_hash = ngx_hash_key_lc(header->name.data, header->name.len); | |
| 3053 hk->value = header; | |
| 3054 } | |
| 3055 | |
| 3056 hash.hash = &umcf->headers_in_hash; | |
| 3057 hash.key = ngx_hash_key_lc; | |
| 3058 hash.max_size = 512; | |
|
751
bae59a740c40
align hash bucket size to cache line
Igor Sysoev <igor@sysoev.ru>
parents:
750
diff
changeset
|
3059 hash.bucket_size = ngx_align(64, ngx_cacheline_size); |
| 649 | 3060 hash.name = "upstream_headers_in_hash"; |
| 3061 hash.pool = cf->pool; | |
| 3062 hash.temp_pool = NULL; | |
| 3063 | |
| 3064 if (ngx_hash_init(&hash, headers_in.elts, headers_in.nelts) != NGX_OK) { | |
| 3065 return NGX_CONF_ERROR; | |
| 3066 } | |
| 509 | 3067 |
| 3068 return NGX_CONF_OK; | |
| 3069 } |