Mercurial > hg > nginx
annotate src/http/ngx_http_upstream.c @ 1284:be2b895d31e0
fix segfault when session was freed twice
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Tue, 10 Jul 2007 21:04:37 +0000 |
| parents | 05b5236c2ff5 |
| children | 13a4ce6e7f1e d59617e7e6a1 |
| 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); | |
|
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24 static ngx_int_t ngx_http_upstream_test_connect(ngx_connection_t *c); |
|
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<!--#include virtual=... set=... -->
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25 static void ngx_http_upstream_process_body_in_memory(ngx_event_t *rev); |
| 479 | 26 static void ngx_http_upstream_send_response(ngx_http_request_t *r, |
| 487 | 27 ngx_http_upstream_t *u); |
| 581 | 28 static void |
| 29 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r); | |
| 30 static void ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev); | |
| 31 static ngx_int_t ngx_http_upstream_non_buffered_filter_init(void *data); | |
| 32 static ngx_int_t ngx_http_upstream_non_buffered_filter(void *data, | |
| 33 ssize_t bytes); | |
| 509 | 34 static void ngx_http_upstream_process_downstream(ngx_http_request_t *r); |
| 479 | 35 static void ngx_http_upstream_process_body(ngx_event_t *ev); |
| 36 static void ngx_http_upstream_dummy_handler(ngx_event_t *wev); | |
| 37 static void ngx_http_upstream_next(ngx_http_request_t *r, | |
| 487 | 38 ngx_http_upstream_t *u, ngx_uint_t ft_type); |
| 569 | 39 static void ngx_http_upstream_cleanup(void *data); |
| 479 | 40 static void ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
| 487 | 41 ngx_http_upstream_t *u, ngx_int_t rc); |
| 479 | 42 |
| 509 | 43 static ngx_int_t ngx_http_upstream_process_header_line(ngx_http_request_t *r, |
| 44 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 45 static ngx_int_t | |
| 46 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
| 47 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 48 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, | |
| 49 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 527 | 50 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, |
| 51 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 649 | 52 static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r, |
| 509 | 53 ngx_table_elt_t *h, ngx_uint_t offset); |
| 657 | 54 static ngx_int_t ngx_http_upstream_process_charset(ngx_http_request_t *r, |
| 55 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 649 | 56 static ngx_int_t ngx_http_upstream_copy_header_line(ngx_http_request_t *r, |
| 509 | 57 ngx_table_elt_t *h, ngx_uint_t offset); |
| 58 static ngx_int_t | |
| 59 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r, | |
| 60 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 61 static ngx_int_t ngx_http_upstream_copy_content_type(ngx_http_request_t *r, | |
| 62 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 63 static ngx_int_t ngx_http_upstream_copy_content_length(ngx_http_request_t *r, | |
| 64 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 65 static ngx_int_t ngx_http_upstream_rewrite_location(ngx_http_request_t *r, | |
| 66 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 67 static ngx_int_t ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, | |
| 68 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 69 #if (NGX_HTTP_GZIP) | |
| 70 static ngx_int_t ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
| 71 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 72 #endif | |
| 73 | |
| 573 | 74 static ngx_int_t ngx_http_upstream_add_variables(ngx_conf_t *cf); |
| 1181 | 75 static ngx_int_t ngx_http_upstream_addr_variable(ngx_http_request_t *r, |
| 76 ngx_http_variable_value_t *v, uintptr_t data); | |
| 573 | 77 static ngx_int_t ngx_http_upstream_status_variable(ngx_http_request_t *r, |
| 78 ngx_http_variable_value_t *v, uintptr_t data); | |
| 79 static ngx_int_t ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
| 80 ngx_http_variable_value_t *v, uintptr_t data); | |
| 81 | |
| 651 | 82 static char *ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy); |
| 83 static char *ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 84 void *conf); | |
| 85 | |
| 509 | 86 static void *ngx_http_upstream_create_main_conf(ngx_conf_t *cf); |
| 651 | 87 static char *ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf); |
| 509 | 88 |
| 577 | 89 #if (NGX_HTTP_SSL) |
| 591 | 90 static void ngx_http_upstream_ssl_init_connection(ngx_http_request_t *, |
| 91 ngx_http_upstream_t *u, ngx_connection_t *c); | |
| 577 | 92 static void ngx_http_upstream_ssl_handshake(ngx_connection_t *c); |
| 93 #endif | |
| 94 | |
| 509 | 95 |
| 96 ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = { | |
| 97 | |
| 98 { ngx_string("Status"), | |
| 99 ngx_http_upstream_process_header_line, | |
| 100 offsetof(ngx_http_upstream_headers_in_t, status), | |
| 649 | 101 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 509 | 102 |
| 103 { ngx_string("Content-Type"), | |
| 104 ngx_http_upstream_process_header_line, | |
| 105 offsetof(ngx_http_upstream_headers_in_t, content_type), | |
| 673 | 106 ngx_http_upstream_copy_content_type, 0, 1 }, |
| 509 | 107 |
| 108 { ngx_string("Content-Length"), | |
| 109 ngx_http_upstream_process_header_line, | |
| 110 offsetof(ngx_http_upstream_headers_in_t, content_length), | |
| 515 | 111 ngx_http_upstream_copy_content_length, 0, 0 }, |
| 509 | 112 |
| 113 { ngx_string("Date"), | |
| 114 ngx_http_upstream_process_header_line, | |
| 115 offsetof(ngx_http_upstream_headers_in_t, date), | |
| 649 | 116 ngx_http_upstream_copy_header_line, |
| 117 offsetof(ngx_http_headers_out_t, date), 0 }, | |
| 509 | 118 |
| 119 { ngx_string("Server"), | |
| 120 ngx_http_upstream_process_header_line, | |
| 121 offsetof(ngx_http_upstream_headers_in_t, server), | |
| 649 | 122 ngx_http_upstream_copy_header_line, |
| 123 offsetof(ngx_http_headers_out_t, server), 0 }, | |
| 509 | 124 |
| 529 | 125 { ngx_string("WWW-Authenticate"), |
| 126 ngx_http_upstream_process_header_line, | |
| 127 offsetof(ngx_http_upstream_headers_in_t, www_authenticate), | |
| 128 ngx_http_upstream_copy_header_line, 0, 0 }, | |
| 129 | |
| 509 | 130 { ngx_string("Location"), |
| 131 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 132 ngx_http_upstream_rewrite_location, 0, 0 }, |
| 509 | 133 |
| 134 { ngx_string("Refresh"), | |
| 135 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 136 ngx_http_upstream_rewrite_refresh, 0, 0 }, |
| 137 | |
| 138 { ngx_string("Set-Cookie"), | |
| 139 ngx_http_upstream_ignore_header_line, 0, | |
| 531 | 140 ngx_http_upstream_copy_header_line, 0, 1 }, |
| 141 | |
| 142 { ngx_string("Content-Disposition"), | |
| 143 ngx_http_upstream_ignore_header_line, 0, | |
| 144 ngx_http_upstream_copy_header_line, 0, 1 }, | |
| 509 | 145 |
| 146 { ngx_string("Cache-Control"), | |
| 147 ngx_http_upstream_process_multi_header_lines, | |
| 148 offsetof(ngx_http_upstream_headers_in_t, cache_control), | |
| 149 ngx_http_upstream_copy_multi_header_lines, | |
| 515 | 150 offsetof(ngx_http_headers_out_t, cache_control), 1 }, |
| 509 | 151 |
| 573 | 152 { ngx_string("Expires"), |
| 153 ngx_http_upstream_process_header_line, | |
| 154 offsetof(ngx_http_upstream_headers_in_t, expires), | |
| 155 ngx_http_upstream_copy_header_line, | |
| 156 offsetof(ngx_http_headers_out_t, expires), 1 }, | |
| 157 | |
| 577 | 158 { ngx_string("Accept-Ranges"), |
| 159 ngx_http_upstream_process_header_line, | |
| 160 offsetof(ngx_http_upstream_headers_in_t, accept_ranges), | |
| 161 ngx_http_upstream_copy_header_line, | |
| 162 offsetof(ngx_http_headers_out_t, accept_ranges), 1 }, | |
| 163 | |
| 509 | 164 { ngx_string("Connection"), |
| 165 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 166 ngx_http_upstream_ignore_header_line, 0, 0 }, |
| 509 | 167 |
| 641 | 168 { ngx_string("Keep-Alive"), |
| 169 ngx_http_upstream_ignore_header_line, 0, | |
| 170 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 171 | |
| 509 | 172 { ngx_string("X-Powered-By"), |
| 173 ngx_http_upstream_ignore_header_line, 0, | |
| 649 | 174 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 509 | 175 |
| 176 { ngx_string("X-Accel-Expires"), | |
| 177 ngx_http_upstream_process_header_line, | |
| 178 offsetof(ngx_http_upstream_headers_in_t, x_accel_expires), | |
| 649 | 179 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 515 | 180 |
| 181 { ngx_string("X-Accel-Redirect"), | |
| 182 ngx_http_upstream_process_header_line, | |
| 183 offsetof(ngx_http_upstream_headers_in_t, x_accel_redirect), | |
| 184 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 509 | 185 |
| 527 | 186 { ngx_string("X-Accel-Limit-Rate"), |
| 187 ngx_http_upstream_process_limit_rate, 0, | |
| 188 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 189 | |
| 649 | 190 { ngx_string("X-Accel-Buffering"), |
| 191 ngx_http_upstream_process_buffering, 0, | |
| 192 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 193 | |
| 657 | 194 { ngx_string("X-Accel-Charset"), |
| 195 ngx_http_upstream_process_charset, 0, | |
| 196 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 197 | |
| 509 | 198 #if (NGX_HTTP_GZIP) |
| 199 { ngx_string("Content-Encoding"), | |
| 200 ngx_http_upstream_process_header_line, | |
| 201 offsetof(ngx_http_upstream_headers_in_t, content_encoding), | |
| 515 | 202 ngx_http_upstream_copy_content_encoding, 0, 0 }, |
| 509 | 203 #endif |
| 204 | |
| 515 | 205 { ngx_null_string, NULL, 0, NULL, 0, 0 } |
| 509 | 206 }; |
| 479 | 207 |
| 208 | |
| 651 | 209 static ngx_command_t ngx_http_upstream_commands[] = { |
| 210 | |
| 211 { ngx_string("upstream"), | |
| 212 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1, | |
| 213 ngx_http_upstream, | |
| 214 0, | |
| 215 0, | |
| 216 NULL }, | |
| 217 | |
| 218 { ngx_string("server"), | |
| 884 | 219 NGX_HTTP_UPS_CONF|NGX_CONF_1MORE, |
| 651 | 220 ngx_http_upstream_server, |
| 221 NGX_HTTP_SRV_CONF_OFFSET, | |
| 222 0, | |
| 223 NULL }, | |
| 224 | |
| 225 ngx_null_command | |
| 226 }; | |
| 227 | |
| 228 | |
| 229 static ngx_http_module_t ngx_http_upstream_module_ctx = { | |
| 573 | 230 ngx_http_upstream_add_variables, /* preconfiguration */ |
| 509 | 231 NULL, /* postconfiguration */ |
| 232 | |
| 233 ngx_http_upstream_create_main_conf, /* create main configuration */ | |
| 651 | 234 ngx_http_upstream_init_main_conf, /* init main configuration */ |
| 479 | 235 |
| 236 NULL, /* create server configuration */ | |
| 237 NULL, /* merge server configuration */ | |
| 238 | |
| 239 NULL, /* create location configuration */ | |
| 240 NULL /* merge location configuration */ | |
| 241 }; | |
| 577 | 242 |
| 479 | 243 |
| 244 ngx_module_t ngx_http_upstream_module = { | |
| 509 | 245 NGX_MODULE_V1, |
| 479 | 246 &ngx_http_upstream_module_ctx, /* module context */ |
| 651 | 247 ngx_http_upstream_commands, /* module directives */ |
| 479 | 248 NGX_HTTP_MODULE, /* module type */ |
| 541 | 249 NULL, /* init master */ |
| 479 | 250 NULL, /* init module */ |
| 541 | 251 NULL, /* init process */ |
| 252 NULL, /* init thread */ | |
| 253 NULL, /* exit thread */ | |
| 254 NULL, /* exit process */ | |
| 255 NULL, /* exit master */ | |
| 256 NGX_MODULE_V1_PADDING | |
| 479 | 257 }; |
| 258 | |
| 259 | |
| 573 | 260 static ngx_http_variable_t ngx_http_upstream_vars[] = { |
| 261 | |
| 1181 | 262 { ngx_string("upstream_addr"), NULL, |
| 263 ngx_http_upstream_addr_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, | |
| 264 | |
| 637 | 265 { ngx_string("upstream_status"), NULL, |
| 583 | 266 ngx_http_upstream_status_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
| 573 | 267 |
| 637 | 268 { ngx_string("upstream_response_time"), NULL, |
| 583 | 269 ngx_http_upstream_response_time_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
| 573 | 270 |
| 637 | 271 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
| 573 | 272 }; |
| 273 | |
| 274 | |
| 487 | 275 void |
| 276 ngx_http_upstream_init(ngx_http_request_t *r) | |
| 479 | 277 { |
| 509 | 278 ngx_connection_t *c; |
| 569 | 279 ngx_http_cleanup_t *cln; |
| 509 | 280 ngx_http_upstream_t *u; |
| 281 ngx_http_core_loc_conf_t *clcf; | |
| 479 | 282 |
| 283 c = r->connection; | |
| 284 | |
| 285 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 286 "http init upstream, client timer: %d", c->read->timer_set); | |
| 287 | |
| 288 if (c->read->timer_set) { | |
| 289 ngx_del_timer(c->read); | |
| 290 } | |
| 291 | |
| 629 | 292 u = r->upstream; |
| 293 | |
| 294 if (!r->post_action && !u->conf->ignore_client_abort) { | |
| 615 | 295 r->read_event_handler = ngx_http_upstream_rd_check_broken_connection; |
| 296 r->write_event_handler = ngx_http_upstream_wr_check_broken_connection; | |
| 297 } | |
| 577 | 298 |
| 479 | 299 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) { |
| 300 | |
| 301 if (!c->write->active) { | |
| 531 | 302 if (ngx_add_event(c->write, NGX_WRITE_EVENT, NGX_CLEAR_EVENT) |
| 303 == NGX_ERROR) | |
| 479 | 304 { |
| 305 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 306 return; | |
| 307 } | |
| 308 } | |
| 309 } | |
| 310 | |
| 537 | 311 if (r->request_body) { |
| 312 u->request_bufs = r->request_body->bufs; | |
| 313 } | |
| 509 | 314 |
| 884 | 315 if (u->conf->upstream->peer.init(r, u->conf->upstream) != NGX_OK) { |
| 316 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 317 return; | |
| 318 } | |
| 319 | |
| 537 | 320 if (u->create_request(r) != NGX_OK) { |
| 479 | 321 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 322 return; | |
| 323 } | |
| 324 | |
| 509 | 325 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
| 479 | 326 |
| 327 u->output.sendfile = r->connection->sendfile; | |
| 328 u->output.pool = r->pool; | |
| 329 u->output.bufs.num = 1; | |
| 509 | 330 u->output.bufs.size = clcf->client_body_buffer_size; |
| 479 | 331 u->output.output_filter = ngx_chain_writer; |
| 332 u->output.filter_ctx = &u->writer; | |
| 333 | |
| 334 u->writer.pool = r->pool; | |
| 335 | |
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336 if (r->upstream_states == NULL) { |
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337 |
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338 r->upstream_states = ngx_array_create(r->pool, 1, |
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339 sizeof(ngx_http_upstream_state_t)); |
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340 if (r->upstream_states == NULL) { |
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341 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); |
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342 return; |
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343 } |
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344 |
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345 } else { |
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346 |
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347 u->state = ngx_array_push(r->upstream_states); |
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parents:
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348 if (u->state == NULL) { |
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349 ngx_http_upstream_finalize_request(r, u, |
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350 NGX_HTTP_INTERNAL_SERVER_ERROR); |
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351 return; |
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352 } |
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353 |
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354 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t)); |
| 479 | 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 | |
| 1109 | 455 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ev->log, err, |
| 456 "http upstream recv(): %d", n); | |
| 457 | |
| 479 | 458 /* |
| 459 * we do not need to disable the write event because | |
| 460 * that event has NGX_USE_CLEAR_EVENT type | |
| 461 */ | |
| 462 | |
| 463 if (ev->write && (n >= 0 || err == NGX_EAGAIN)) { | |
| 464 return; | |
| 465 } | |
| 466 | |
| 467 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) { | |
| 468 if (ngx_del_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) { | |
| 469 ngx_http_upstream_finalize_request(r, u, | |
| 470 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 471 return; | |
| 472 } | |
| 473 } | |
| 474 | |
| 475 if (n > 0) { | |
| 476 return; | |
| 477 } | |
| 478 | |
| 479 if (n == -1) { | |
| 480 if (err == NGX_EAGAIN) { | |
| 481 return; | |
| 482 } | |
| 483 | |
| 484 ev->error = 1; | |
| 485 | |
| 483 | 486 } else { /* n == 0 */ |
| 479 | 487 err = 0; |
| 488 } | |
| 489 | |
| 529 | 490 ev->eof = 1; |
| 583 | 491 c->error = 1; |
| 529 | 492 |
| 479 | 493 if (!u->cachable && u->peer.connection) { |
| 494 ngx_log_error(NGX_LOG_INFO, ev->log, err, | |
| 495 "client closed prematurely connection, " | |
| 496 "so upstream connection is closed too"); | |
| 497 ngx_http_upstream_finalize_request(r, u, | |
| 498 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 499 return; | |
| 500 } | |
| 501 | |
| 502 ngx_log_error(NGX_LOG_INFO, ev->log, err, | |
| 503 "client closed prematurely connection"); | |
| 504 | |
| 505 if (u->peer.connection == NULL) { | |
| 506 ngx_http_upstream_finalize_request(r, u, | |
| 507 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 508 return; | |
| 509 } | |
| 510 } | |
| 511 | |
| 512 | |
| 487 | 513 static void |
| 514 ngx_http_upstream_connect(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 479 | 515 { |
| 591 | 516 ngx_int_t rc; |
| 665 | 517 ngx_time_t *tp; |
| 591 | 518 ngx_connection_t *c; |
| 479 | 519 |
| 483 | 520 r->connection->log->action = "connecting to upstream"; |
| 479 | 521 |
| 522 r->connection->single_connection = 0; | |
| 523 | |
|
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524 if (u->state && u->state->response_sec) { |
| 665 | 525 tp = ngx_timeofday(); |
|
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526 u->state->response_sec = tp->sec - u->state->response_sec; |
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527 u->state->response_msec = tp->msec - u->state->response_msec; |
| 665 | 528 } |
| 529 | |
|
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530 u->state = ngx_array_push(r->upstream_states); |
| 665 | 531 if (u->state == NULL) { |
| 532 ngx_http_upstream_finalize_request(r, u, | |
| 533 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 534 return; | |
| 535 } | |
| 536 | |
| 537 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t)); | |
| 538 | |
| 539 tp = ngx_timeofday(); | |
|
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540 u->state->response_sec = tp->sec; |
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541 u->state->response_msec = tp->msec; |
| 665 | 542 |
| 479 | 543 rc = ngx_event_connect_peer(&u->peer); |
| 544 | |
| 545 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 546 "http upstream connect: %i", rc); | |
| 547 | |
| 548 if (rc == NGX_ERROR) { | |
| 549 ngx_http_upstream_finalize_request(r, u, | |
| 550 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 551 return; | |
| 552 } | |
| 553 | |
| 884 | 554 u->state->peer = u->peer.name; |
| 479 | 555 |
| 543 | 556 if (rc == NGX_BUSY) { |
| 557 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no live upstreams"); | |
| 558 } | |
| 559 | |
| 560 if (rc == NGX_BUSY || rc == NGX_DECLINED) { | |
| 479 | 561 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
| 562 return; | |
| 563 } | |
| 564 | |
| 577 | 565 /* rc == NGX_OK || rc == NGX_AGAIN */ |
| 566 | |
| 479 | 567 c = u->peer.connection; |
| 568 | |
| 569 c->data = r; | |
| 591 | 570 |
| 509 | 571 c->write->handler = ngx_http_upstream_send_request_handler; |
| 572 c->read->handler = ngx_http_upstream_process_header; | |
| 479 | 573 |
| 574 c->sendfile = r->connection->sendfile; | |
| 575 | |
| 576 c->pool = r->pool; | |
| 577 c->read->log = c->write->log = c->log = r->connection->log; | |
| 578 | |
| 579 /* init or reinit the ngx_output_chain() and ngx_chain_writer() contexts */ | |
| 580 | |
| 581 u->writer.out = NULL; | |
| 582 u->writer.last = &u->writer.out; | |
| 583 u->writer.connection = c; | |
| 584 u->writer.limit = 0; | |
| 585 | |
| 586 if (u->request_sent) { | |
| 509 | 587 if (ngx_http_upstream_reinit(r, u) != NGX_OK) { |
| 588 ngx_http_upstream_finalize_request(r, u, | |
| 589 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 590 return; | |
| 591 } | |
| 479 | 592 } |
| 593 | |
|
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594 if (r->request_body |
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595 && r->request_body->buf |
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596 && r->request_body->temp_file |
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597 && r == r->main) |
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598 { |
| 573 | 599 /* |
| 600 * the r->request_body->buf can be reused for one request only, | |
| 601 * the subrequests should allocate their own temporay bufs | |
| 602 */ | |
| 603 | |
| 604 u->output.free = ngx_alloc_chain_link(r->pool); | |
| 605 if (u->output.free == NULL) { | |
| 606 ngx_http_upstream_finalize_request(r, u, | |
| 607 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 608 return; | |
| 479 | 609 } |
| 573 | 610 |
| 611 u->output.free->buf = r->request_body->buf; | |
| 612 u->output.free->next = NULL; | |
| 613 u->output.allocated = 1; | |
| 614 | |
| 615 r->request_body->buf->pos = r->request_body->buf->start; | |
| 616 r->request_body->buf->last = r->request_body->buf->start; | |
| 617 r->request_body->buf->tag = u->output.tag; | |
| 479 | 618 } |
| 619 | |
| 620 u->request_sent = 0; | |
| 621 | |
| 622 if (rc == NGX_AGAIN) { | |
| 623 ngx_add_timer(c->write, u->conf->connect_timeout); | |
| 624 return; | |
| 625 } | |
| 626 | |
| 577 | 627 #if (NGX_HTTP_SSL) |
| 628 | |
| 591 | 629 if (u->conf->ssl && c->ssl == NULL) { |
| 630 ngx_http_upstream_ssl_init_connection(r, u, c); | |
| 577 | 631 return; |
| 632 } | |
| 633 | |
| 634 #endif | |
| 635 | |
| 479 | 636 ngx_http_upstream_send_request(r, u); |
| 637 } | |
| 638 | |
| 639 | |
| 577 | 640 #if (NGX_HTTP_SSL) |
| 641 | |
| 642 static void | |
| 591 | 643 ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r, |
| 644 ngx_http_upstream_t *u, ngx_connection_t *c) | |
| 645 { | |
| 884 | 646 ngx_int_t rc; |
| 591 | 647 |
| 648 if (ngx_ssl_create_connection(u->conf->ssl, c, | |
| 649 NGX_SSL_BUFFER|NGX_SSL_CLIENT) | |
| 650 == NGX_ERROR) | |
| 651 { | |
| 652 ngx_http_upstream_finalize_request(r, u, | |
| 653 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 654 return; | |
| 655 } | |
| 656 | |
| 657 c->sendfile = 0; | |
| 619 | 658 u->output.sendfile = 0; |
| 591 | 659 |
|
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660 if (u->peer.set_session(&u->peer, u->peer.data) != NGX_OK) { |
| 591 | 661 ngx_http_upstream_finalize_request(r, u, |
| 662 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 663 return; | |
| 664 } | |
| 665 | |
| 641 | 666 r->connection->log->action = "SSL handshaking to upstream"; |
| 667 | |
| 591 | 668 rc = ngx_ssl_handshake(c); |
| 669 | |
| 670 if (rc == NGX_AGAIN) { | |
| 671 c->ssl->handler = ngx_http_upstream_ssl_handshake; | |
| 672 return; | |
| 673 } | |
| 674 | |
| 675 ngx_http_upstream_ssl_handshake(c); | |
| 676 } | |
| 677 | |
| 678 | |
| 679 static void | |
| 577 | 680 ngx_http_upstream_ssl_handshake(ngx_connection_t *c) |
| 681 { | |
| 682 ngx_http_request_t *r; | |
| 683 ngx_http_upstream_t *u; | |
| 684 | |
| 685 r = c->data; | |
| 686 u = r->upstream; | |
| 687 | |
| 688 if (c->ssl->handshaked) { | |
| 689 | |
| 884 | 690 u->peer.save_session(&u->peer, u->peer.data); |
| 691 | |
| 577 | 692 c->write->handler = ngx_http_upstream_send_request_handler; |
| 693 c->read->handler = ngx_http_upstream_process_header; | |
| 694 | |
| 695 ngx_http_upstream_send_request(r, u); | |
| 696 | |
| 697 return; | |
| 698 } | |
| 699 | |
| 700 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 701 | |
| 702 } | |
| 703 | |
| 704 #endif | |
| 705 | |
| 706 | |
| 509 | 707 static ngx_int_t |
| 487 | 708 ngx_http_upstream_reinit(ngx_http_request_t *r, ngx_http_upstream_t *u) |
| 479 | 709 { |
| 710 ngx_chain_t *cl; | |
| 711 | |
| 509 | 712 if (u->reinit_request(r) != NGX_OK) { |
| 713 return NGX_ERROR; | |
| 714 } | |
| 715 | |
| 716 ngx_memzero(&r->upstream->headers_in, | |
| 717 sizeof(ngx_http_upstream_headers_in_t)); | |
| 718 | |
| 719 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, | |
| 591 | 720 sizeof(ngx_table_elt_t)) |
| 721 != NGX_OK) | |
| 509 | 722 { |
| 723 return NGX_ERROR; | |
| 479 | 724 } |
| 725 | |
| 726 /* reinit the request chain */ | |
| 577 | 727 |
| 509 | 728 for (cl = u->request_bufs; cl; cl = cl->next) { |
| 479 | 729 cl->buf->pos = cl->buf->start; |
| 730 cl->buf->file_pos = 0; | |
| 731 } | |
| 732 | |
| 509 | 733 /* reinit the subrequest's ngx_output_chain() context */ |
| 734 | |
| 573 | 735 if (r->request_body && r->request_body->temp_file |
| 597 | 736 && r != r->main && u->output.buf) |
| 573 | 737 { |
| 738 u->output.free = ngx_alloc_chain_link(r->pool); | |
| 739 if (u->output.free == NULL) { | |
| 740 return NGX_ERROR; | |
| 509 | 741 } |
| 573 | 742 |
| 743 u->output.free->buf = u->output.buf; | |
| 744 u->output.free->next = NULL; | |
| 745 | |
| 746 u->output.buf->pos = u->output.buf->start; | |
| 747 u->output.buf->last = u->output.buf->start; | |
| 509 | 748 } |
| 479 | 749 |
| 750 u->output.buf = NULL; | |
| 751 u->output.in = NULL; | |
| 752 u->output.busy = NULL; | |
| 577 | 753 |
| 581 | 754 /* reinit u->buffer */ |
| 577 | 755 |
| 479 | 756 #if 0 |
| 757 if (u->cache) { | |
| 581 | 758 u->buffer.pos = u->buffer.start + u->cache->ctx.header_size; |
| 759 u->buffer.last = u->buffer.pos; | |
| 479 | 760 |
| 761 } else { | |
| 581 | 762 u->buffer.pos = u->buffer.start; |
| 763 u->buffer.last = u->buffer.start; | |
| 479 | 764 } |
| 765 #else | |
| 509 | 766 |
| 581 | 767 u->buffer.pos = u->buffer.start; |
| 768 u->buffer.last = u->buffer.start; | |
| 509 | 769 |
| 479 | 770 #endif |
| 771 | |
| 509 | 772 return NGX_OK; |
| 479 | 773 } |
| 774 | |
| 775 | |
| 487 | 776 static void |
| 777 ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 479 | 778 { |
|
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parents:
1143
diff
changeset
|
779 ngx_int_t rc; |
| 483 | 780 ngx_connection_t *c; |
| 577 | 781 |
| 479 | 782 c = u->peer.connection; |
| 783 | |
| 784 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 785 "http upstream send request"); | |
| 786 | |
|
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parents:
1143
diff
changeset
|
787 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) { |
| 1166 | 788 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
|
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changeset
|
789 return; |
| 479 | 790 } |
| 791 | |
| 483 | 792 c->log->action = "sending request to upstream"; |
| 479 | 793 |
| 509 | 794 rc = ngx_output_chain(&u->output, u->request_sent ? NULL : u->request_bufs); |
| 479 | 795 |
| 796 u->request_sent = 1; | |
| 797 | |
| 798 if (rc == NGX_ERROR) { | |
| 799 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 800 return; | |
| 801 } | |
| 802 | |
| 803 if (c->write->timer_set) { | |
| 804 ngx_del_timer(c->write); | |
| 805 } | |
| 806 | |
| 807 if (rc == NGX_AGAIN) { | |
| 808 ngx_add_timer(c->write, u->conf->send_timeout); | |
| 809 | |
| 810 if (ngx_handle_write_event(c->write, u->conf->send_lowat) == NGX_ERROR) | |
| 811 { | |
| 812 ngx_http_upstream_finalize_request(r, u, | |
| 813 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 814 return; | |
| 815 } | |
| 816 | |
| 817 return; | |
| 818 } | |
| 819 | |
| 820 /* rc == NGX_OK */ | |
| 821 | |
| 822 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) { | |
| 823 if (ngx_tcp_push(c->fd) == NGX_ERROR) { | |
| 824 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno, | |
| 825 ngx_tcp_push_n " failed"); | |
| 826 ngx_http_upstream_finalize_request(r, u, | |
| 827 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 577 | 828 return; |
| 479 | 829 } |
| 830 | |
| 831 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET; | |
| 832 } | |
| 577 | 833 |
| 479 | 834 ngx_add_timer(c->read, u->conf->read_timeout); |
| 835 | |
| 836 #if 1 | |
| 837 if (c->read->ready) { | |
| 577 | 838 |
| 479 | 839 /* post aio operation */ |
| 840 | |
| 841 /* | |
| 842 * TODO comment | |
| 843 * although we can post aio operation just in the end | |
| 844 * of ngx_http_upstream_connect() CHECK IT !!! | |
| 845 * it's better to do here because we postpone header buffer allocation | |
| 846 */ | |
| 847 | |
| 848 ngx_http_upstream_process_header(c->read); | |
| 849 return; | |
| 850 } | |
| 851 #endif | |
| 852 | |
| 509 | 853 c->write->handler = ngx_http_upstream_dummy_handler; |
| 479 | 854 |
| 509 | 855 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) { |
| 479 | 856 ngx_http_upstream_finalize_request(r, u, |
| 857 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 858 return; | |
| 859 } | |
| 860 } | |
| 861 | |
| 862 | |
| 487 | 863 static void |
| 864 ngx_http_upstream_send_request_handler(ngx_event_t *wev) | |
| 479 | 865 { |
| 866 ngx_connection_t *c; | |
| 867 ngx_http_request_t *r; | |
| 868 ngx_http_upstream_t *u; | |
| 869 | |
| 870 c = wev->data; | |
| 871 r = c->data; | |
| 872 u = r->upstream; | |
| 873 | |
| 874 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
| 875 "http upstream send request handler"); | |
| 876 | |
| 877 if (wev->timedout) { | |
| 878 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
| 879 return; | |
| 880 } | |
| 881 | |
| 591 | 882 #if (NGX_HTTP_SSL) |
| 883 | |
| 884 if (u->conf->ssl && c->ssl == NULL) { | |
| 885 ngx_http_upstream_ssl_init_connection(r, u, c); | |
| 886 return; | |
| 887 } | |
| 888 | |
| 889 #endif | |
| 890 | |
| 651 | 891 if (u->header_sent) { |
| 892 wev->handler = ngx_http_upstream_dummy_handler; | |
| 893 | |
| 894 (void) ngx_handle_write_event(wev, 0); | |
| 895 | |
| 896 return; | |
| 897 } | |
| 898 | |
| 479 | 899 ngx_http_upstream_send_request(r, u); |
| 900 } | |
| 901 | |
| 902 | |
| 487 | 903 static void |
| 904 ngx_http_upstream_process_header(ngx_event_t *rev) | |
| 479 | 905 { |
| 515 | 906 ssize_t n; |
| 907 ngx_int_t rc; | |
| 573 | 908 ngx_str_t *uri, args; |
| 649 | 909 ngx_uint_t i, flags; |
| 515 | 910 ngx_list_part_t *part; |
| 911 ngx_table_elt_t *h; | |
| 912 ngx_connection_t *c; | |
| 913 ngx_http_request_t *r; | |
| 914 ngx_http_upstream_t *u; | |
| 915 ngx_http_err_page_t *err_page; | |
| 916 ngx_http_core_loc_conf_t *clcf; | |
| 917 ngx_http_upstream_header_t *hh; | |
| 918 ngx_http_upstream_main_conf_t *umcf; | |
| 479 | 919 |
| 920 c = rev->data; | |
| 921 r = c->data; | |
| 922 u = r->upstream; | |
| 923 | |
| 924 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, | |
| 483 | 925 "http upstream process header"); |
| 479 | 926 |
| 483 | 927 c->log->action = "reading response header from upstream"; |
| 479 | 928 |
| 929 if (rev->timedout) { | |
| 930 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
| 931 return; | |
| 932 } | |
| 577 | 933 |
|
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934 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) { |
| 1166 | 935 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
|
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936 return; |
|
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937 } |
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|
938 |
| 581 | 939 if (u->buffer.start == NULL) { |
| 940 u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size); | |
| 941 if (u->buffer.start == NULL) { | |
| 479 | 942 ngx_http_upstream_finalize_request(r, u, |
| 943 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 944 return; | |
| 945 } | |
| 946 | |
| 581 | 947 u->buffer.pos = u->buffer.start; |
| 948 u->buffer.last = u->buffer.start; | |
| 949 u->buffer.end = u->buffer.start + u->conf->buffer_size; | |
| 950 u->buffer.temporary = 1; | |
| 951 | |
| 952 u->buffer.tag = u->output.tag; | |
| 479 | 953 |
| 509 | 954 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, |
| 581 | 955 sizeof(ngx_table_elt_t)) |
| 956 != NGX_OK) | |
| 509 | 957 { |
| 958 ngx_http_upstream_finalize_request(r, u, | |
| 959 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 960 return; | |
| 961 } | |
| 962 | |
| 479 | 963 #if 0 |
| 964 if (u->cache) { | |
| 581 | 965 u->buffer.pos += u->cache->ctx.header_size; |
| 966 u->buffer.last = u->buffer.pos; | |
| 479 | 967 } |
| 968 #endif | |
| 969 } | |
| 970 | |
| 581 | 971 n = u->peer.connection->recv(u->peer.connection, u->buffer.last, |
| 1245 | 972 u->buffer.end - u->buffer.last); |
| 479 | 973 |
| 974 if (n == NGX_AGAIN) { | |
| 975 #if 0 | |
| 976 ngx_add_timer(rev, u->read_timeout); | |
| 977 #endif | |
| 978 | |
| 979 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 980 ngx_http_upstream_finalize_request(r, u, | |
| 981 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 982 return; | |
| 983 } | |
| 984 | |
| 985 return; | |
| 986 } | |
| 987 | |
| 988 if (n == 0) { | |
| 989 ngx_log_error(NGX_LOG_ERR, rev->log, 0, | |
| 990 "upstream prematurely closed connection"); | |
| 991 } | |
| 992 | |
| 993 if (n == NGX_ERROR || n == 0) { | |
| 994 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 995 return; | |
| 996 } | |
| 997 | |
| 581 | 998 u->buffer.last += n; |
| 479 | 999 |
| 1000 #if 0 | |
| 1001 u->valid_header_in = 0; | |
| 1002 | |
| 1003 u->peer.cached = 0; | |
| 1004 #endif | |
| 1005 | |
| 1006 rc = u->process_header(r); | |
| 1007 | |
| 1008 if (rc == NGX_AGAIN) { | |
| 1009 #if 0 | |
| 1010 ngx_add_timer(rev, u->read_timeout); | |
| 1011 #endif | |
| 1012 | |
| 581 | 1013 if (u->buffer.pos == u->buffer.end) { |
| 479 | 1014 ngx_log_error(NGX_LOG_ERR, rev->log, 0, |
| 1015 "upstream sent too big header"); | |
| 1016 | |
| 1017 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
| 1018 return; | |
| 1019 } | |
| 1020 | |
| 1021 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 1022 ngx_http_upstream_finalize_request(r, u, | |
| 1023 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1024 return; | |
| 1025 } | |
| 1026 | |
| 1027 return; | |
| 1028 } | |
| 1029 | |
| 1030 if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) { | |
| 1031 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
| 1032 return; | |
| 1033 } | |
| 1034 | |
| 1035 if (rc == NGX_ERROR || rc == NGX_HTTP_INTERNAL_SERVER_ERROR) { | |
| 1036 ngx_http_upstream_finalize_request(r, u, | |
| 1037 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1038 return; | |
| 1039 } | |
| 1040 | |
| 1041 /* rc == NGX_OK */ | |
| 1042 | |
|
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1043 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
|
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1044 && r->subrequest_in_memory) |
|
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1045 { |
|
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1046 u->buffer.last = u->buffer.pos; |
|
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1047 } |
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1048 |
| 529 | 1049 if (u->headers_in.status_n == NGX_HTTP_INTERNAL_SERVER_ERROR) { |
| 509 | 1050 |
| 1051 if (u->peer.tries > 1 | |
| 1052 && (u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
| 1053 { | |
| 1054 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_500); | |
| 1055 return; | |
| 1056 } | |
| 1057 | |
| 1058 #if (NGX_HTTP_CACHE) | |
| 1059 | |
| 1060 if (u->peer.tries == 0 | |
| 1061 && u->stale | |
| 1062 && (u->conf->use_stale & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
| 1063 { | |
| 1064 ngx_http_upstream_finalize_request(r, u, | |
| 529 | 1065 ngx_http_send_cached_response(r)); |
| 509 | 1066 return; |
| 1067 } | |
| 1068 | |
| 1069 #endif | |
| 1070 } | |
| 1071 | |
| 597 | 1072 if (u->headers_in.status_n == NGX_HTTP_NOT_FOUND) { |
| 1073 | |
| 1074 if (u->peer.tries > 1 | |
| 1075 && u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_404) | |
| 1076 { | |
| 1077 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_404); | |
| 1078 return; | |
| 1079 } | |
| 1080 | |
| 675 | 1081 if (u->conf->intercept_404) { |
| 1082 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_NOT_FOUND); | |
| 597 | 1083 return; |
| 1084 } | |
| 509 | 1085 } |
| 1086 | |
| 1087 | |
| 529 | 1088 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
| 675 | 1089 && u->conf->intercept_errors) |
| 487 | 1090 { |
| 1091 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 1092 | |
| 1093 if (clcf->error_pages) { | |
| 1094 | |
| 1095 err_page = clcf->error_pages->elts; | |
| 1096 for (i = 0; i < clcf->error_pages->nelts; i++) { | |
| 529 | 1097 if (err_page[i].status == (ngx_int_t) u->headers_in.status_n) { |
| 1098 | |
| 1099 if (u->headers_in.status_n == NGX_HTTP_UNAUTHORIZED) { | |
| 1100 | |
| 1101 r->headers_out.www_authenticate = | |
| 1102 ngx_list_push(&r->headers_out.headers); | |
| 1103 | |
| 1104 if (r->headers_out.www_authenticate == NULL) { | |
| 1105 ngx_http_upstream_finalize_request(r, u, | |
| 1106 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1107 return; | |
| 1108 } | |
| 1109 | |
| 577 | 1110 *r->headers_out.www_authenticate = |
| 529 | 1111 *u->headers_in.www_authenticate; |
| 1112 } | |
| 1113 | |
| 487 | 1114 ngx_http_upstream_finalize_request(r, u, |
| 529 | 1115 u->headers_in.status_n); |
| 487 | 1116 return; |
| 1117 } | |
| 1118 } | |
| 1119 } | |
| 1120 } | |
| 1121 | |
| 681 | 1122 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); |
| 1123 | |
| 515 | 1124 if (r->upstream->headers_in.x_accel_redirect) { |
|
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|
1125 |
| 515 | 1126 ngx_http_upstream_finalize_request(r, u, NGX_DECLINED); |
| 1127 | |
| 1128 part = &r->upstream->headers_in.headers.part; | |
| 1129 h = part->elts; | |
| 1130 | |
| 1131 for (i = 0; /* void */; i++) { | |
| 1132 | |
| 1133 if (i >= part->nelts) { | |
| 1134 if (part->next == NULL) { | |
| 1135 break; | |
| 1136 } | |
| 577 | 1137 |
| 515 | 1138 part = part->next; |
| 1139 h = part->elts; | |
| 1140 i = 0; | |
| 1141 } | |
| 1142 | |
| 649 | 1143 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, |
| 1144 h[i].lowcase_key, h[i].key.len); | |
| 1145 | |
| 1146 if (hh && hh->redirect) { | |
| 1147 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
|
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1148 ngx_http_finalize_request(r, |
|
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parents:
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1149 NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 515 | 1150 return; |
| 1151 } | |
| 1152 } | |
| 1153 } | |
| 1154 | |
| 573 | 1155 uri = &r->upstream->headers_in.x_accel_redirect->value; |
| 1156 args.len = 0; | |
| 1157 args.data = NULL; | |
| 1158 flags = 0; | |
| 1159 | |
| 1160 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) { | |
|
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|
1161 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND); |
| 573 | 1162 return; |
| 1163 } | |
| 1164 | |
| 1165 if (flags & NGX_HTTP_ZERO_IN_URI) { | |
| 1166 r->zero_in_uri = 1; | |
| 1167 } | |
| 1168 | |
| 653 | 1169 if (r->method != NGX_HTTP_HEAD) { |
| 1170 r->method = NGX_HTTP_GET; | |
| 1171 } | |
| 1172 | |
| 573 | 1173 ngx_http_internal_redirect(r, uri, &args); |
| 515 | 1174 return; |
| 1175 } | |
| 1176 | |
| 509 | 1177 part = &r->upstream->headers_in.headers.part; |
| 1178 h = part->elts; | |
| 1179 | |
| 1180 for (i = 0; /* void */; i++) { | |
| 479 | 1181 |
| 509 | 1182 if (i >= part->nelts) { |
| 1183 if (part->next == NULL) { | |
| 1184 break; | |
| 1185 } | |
| 577 | 1186 |
| 509 | 1187 part = part->next; |
| 1188 h = part->elts; | |
| 1189 i = 0; | |
| 1190 } | |
| 1191 | |
| 649 | 1192 if (ngx_hash_find(&u->conf->hide_headers_hash, h[i].hash, |
| 1193 h[i].lowcase_key, h[i].key.len)) | |
| 509 | 1194 { |
| 649 | 1195 continue; |
| 1196 } | |
| 1197 | |
| 1198 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, | |
| 1199 h[i].lowcase_key, h[i].key.len); | |
| 1200 | |
| 1201 if (hh) { | |
| 1202 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
| 509 | 1203 ngx_http_upstream_finalize_request(r, u, |
| 1204 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1205 return; | |
| 1206 } | |
| 1207 | |
| 1208 continue; | |
| 1209 } | |
| 1210 | |
| 1211 if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) { | |
| 1212 ngx_http_upstream_finalize_request(r, u, | |
| 1213 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1214 return; | |
| 1215 } | |
| 1216 } | |
| 1217 | |
| 649 | 1218 if (r->headers_out.server && r->headers_out.server->value.data == NULL) { |
| 1219 r->headers_out.server->hash = 0; | |
| 1220 } | |
| 1221 | |
| 1222 if (r->headers_out.date && r->headers_out.date->value.data == NULL) { | |
| 1223 r->headers_out.date->hash = 0; | |
| 1224 } | |
| 1225 | |
| 529 | 1226 r->headers_out.status = u->headers_in.status_n; |
| 1227 r->headers_out.status_line = u->headers_in.status_line; | |
| 1228 | |
| 581 | 1229 if (r->headers_out.content_length_n != -1) { |
| 1230 u->length = (size_t) r->headers_out.content_length_n; | |
| 1231 | |
| 1232 } else { | |
| 1233 u->length = NGX_MAX_SIZE_T_VALUE; | |
| 1234 } | |
| 1235 | |
|
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1236 if (!r->subrequest_in_memory) { |
|
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1237 ngx_http_upstream_send_response(r, u); |
|
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1238 return; |
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|
1239 } |
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1240 |
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1241 /* subrequest content in memory */ |
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1242 |
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1243 if (u->input_filter == NULL) { |
|
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1244 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; |
|
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1245 u->input_filter = ngx_http_upstream_non_buffered_filter; |
|
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1246 u->input_filter_ctx = r; |
|
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1247 } |
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1248 |
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1249 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { |
|
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1250 ngx_http_upstream_finalize_request(r, u, |
|
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1251 NGX_HTTP_INTERNAL_SERVER_ERROR); |
|
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1252 return; |
|
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1253 } |
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1254 |
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1255 if (u->buffer.last - u->buffer.pos >= (ssize_t) u->length) { |
|
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1256 if (u->input_filter(u->input_filter_ctx, 0) == NGX_ERROR) { |
|
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1257 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
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1258 return; |
|
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diff
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|
1259 } |
|
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1260 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1261 ngx_http_upstream_finalize_request(r, u, 0); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1262 return; |
|
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 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1265 rev->handler = ngx_http_upstream_process_body_in_memory; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1266 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1267 ngx_http_upstream_process_body_in_memory(rev); |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1268 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1269 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1270 |
|
1153
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1271 static ngx_int_t |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1272 ngx_http_upstream_test_connect(ngx_connection_t *c) |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1273 { |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1274 int err; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1275 socklen_t len; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1276 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1277 #if (NGX_HAVE_KQUEUE) |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1278 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1279 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
| 1166 | 1280 if (c->write->pending_eof) { |
| 1281 (void) ngx_connection_error(c, c->write->kq_errno, | |
| 1282 "kevent() reported that connect() failed"); | |
| 1283 return NGX_ERROR; | |
| 1284 } | |
|
1153
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1285 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1286 } else |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1287 #endif |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1288 { |
| 1166 | 1289 err = 0; |
| 1290 len = sizeof(int); | |
| 1291 | |
| 1292 /* | |
| 1293 * BSDs and Linux return 0 and set a pending error in err | |
| 1294 * Solaris returns -1 and sets errno | |
| 1295 */ | |
| 1296 | |
| 1297 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len) | |
| 1298 == -1) | |
| 1299 { | |
| 1300 err = ngx_errno; | |
| 1301 } | |
| 1302 | |
| 1303 if (err) { | |
| 1304 (void) ngx_connection_error(c, err, "connect() failed"); | |
| 1305 return NGX_ERROR; | |
| 1306 } | |
|
1153
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1307 } |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1308 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1309 return NGX_OK; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1310 } |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1311 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1312 |
|
777
4ab852b691f5
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parents:
757
diff
changeset
|
1313 static void |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1314 ngx_http_upstream_process_body_in_memory(ngx_event_t *rev) |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1315 { |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1316 size_t size; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1317 ssize_t n; |
|
4ab852b691f5
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parents:
757
diff
changeset
|
1318 ngx_buf_t *b; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1319 ngx_connection_t *c; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
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parents:
757
diff
changeset
|
1320 ngx_http_request_t *r; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1321 ngx_http_upstream_t *u; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
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parents:
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diff
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|
1322 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
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|
1323 c = rev->data; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1324 r = c->data; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1325 u = r->upstream; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1326 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1327 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
|
4ab852b691f5
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parents:
757
diff
changeset
|
1328 "http upstream process body on memory"); |
|
4ab852b691f5
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parents:
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diff
changeset
|
1329 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1330 if (rev->timedout) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1331 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
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parents:
757
diff
changeset
|
1332 ngx_http_upstream_finalize_request(r, u, NGX_ETIMEDOUT); |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1333 return; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1334 } |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1335 |
|
4ab852b691f5
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parents:
757
diff
changeset
|
1336 b = &u->buffer; |
|
4ab852b691f5
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parents:
757
diff
changeset
|
1337 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1338 for ( ;; ) { |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1339 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1340 size = b->end - b->last; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1341 |
|
4ab852b691f5
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diff
changeset
|
1342 if (size == 0) { |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1343 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1344 "upstream buffer is too small to read repsonse"); |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1345 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
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parents:
757
diff
changeset
|
1346 return; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1347 } |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1348 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1349 n = c->recv(c, b->last, size); |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1350 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1351 if (n == NGX_AGAIN) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1352 break; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1353 } |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1354 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1355 if (n == 0 || n == NGX_ERROR) { |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1356 ngx_http_upstream_finalize_request(r, u, n); |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1357 return; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1358 } |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1359 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1360 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1361 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1362 return; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1363 } |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1364 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1365 if (!rev->ready) { |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1366 break; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1367 } |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1368 } |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1369 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1370 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { |
|
4ab852b691f5
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757
diff
changeset
|
1371 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
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parents:
757
diff
changeset
|
1372 return; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1373 } |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1374 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1375 if (rev->active) { |
|
4ab852b691f5
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757
diff
changeset
|
1376 ngx_add_timer(rev, u->conf->read_timeout); |
|
4ab852b691f5
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parents:
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diff
changeset
|
1377 |
|
4ab852b691f5
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parents:
757
diff
changeset
|
1378 } else if (rev->timer_set) { |
|
4ab852b691f5
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757
diff
changeset
|
1379 ngx_del_timer(rev); |
|
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757
diff
changeset
|
1380 } |
| 681 | 1381 } |
| 1382 | |
| 1383 | |
| 1384 static void | |
| 1385 ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 1386 { | |
| 1387 int tcp_nodelay; | |
| 1388 ssize_t size; | |
| 1389 ngx_int_t rc; | |
| 1390 ngx_event_pipe_t *p; | |
| 1391 ngx_connection_t *c; | |
| 1392 ngx_pool_cleanup_t *cl; | |
| 1393 ngx_pool_cleanup_file_t *clf; | |
| 1394 ngx_http_core_loc_conf_t *clcf; | |
| 1395 | |
| 509 | 1396 rc = ngx_http_send_header(r); |
| 479 | 1397 |
|
1031
bf1785dfb75f
allow the upstream modules to send a header only
Igor Sysoev <igor@sysoev.ru>
parents:
906
diff
changeset
|
1398 if (rc == NGX_ERROR || rc > NGX_OK || r->post_action || r->header_only) { |
| 485 | 1399 ngx_http_upstream_finalize_request(r, u, rc); |
| 479 | 1400 return; |
| 1401 } | |
| 1402 | |
| 1403 u->header_sent = 1; | |
| 1404 | |
| 573 | 1405 if (r->request_body && r->request_body->temp_file) { |
| 563 | 1406 for (cl = r->pool->cleanup; cl; cl = cl->next) { |
| 1407 if (cl->handler == ngx_pool_cleanup_file) { | |
| 1408 clf = cl->data; | |
| 1409 | |
| 1410 if (clf->fd == r->request_body->temp_file->file.fd) { | |
| 1411 cl->handler(clf); | |
| 1412 cl->handler = NULL; | |
| 659 | 1413 r->request_body->temp_file->file.fd = NGX_INVALID_FILE; |
| 563 | 1414 break; |
| 1415 } | |
| 1416 } | |
| 1417 } | |
| 1418 } | |
| 1419 | |
| 583 | 1420 c = r->connection; |
| 1421 | |
| 581 | 1422 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
| 1423 | |
| 649 | 1424 if (!u->buffering) { |
| 581 | 1425 |
| 1426 if (u->input_filter == NULL) { | |
| 1427 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; | |
| 1428 u->input_filter = ngx_http_upstream_non_buffered_filter; | |
| 1429 u->input_filter_ctx = r; | |
| 1430 } | |
| 1431 | |
| 1432 u->peer.connection->read->handler = | |
| 1433 ngx_http_upstream_process_non_buffered_body; | |
| 1434 r->write_event_handler = | |
| 1435 ngx_http_upstream_process_non_buffered_downstream; | |
| 1436 | |
| 1437 r->limit_rate = 0; | |
| 1438 | |
| 1439 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { | |
| 1440 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1441 return; | |
| 1442 } | |
| 1443 | |
| 583 | 1444 if (clcf->tcp_nodelay && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) { |
| 1445 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay"); | |
| 1446 | |
| 1447 tcp_nodelay = 1; | |
| 1448 | |
| 1449 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY, | |
| 1450 (const void *) &tcp_nodelay, sizeof(int)) == -1) | |
| 1451 { | |
| 1452 ngx_connection_error(c, ngx_socket_errno, | |
| 1453 "setsockopt(TCP_NODELAY) failed"); | |
| 1454 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1455 return; | |
| 1456 } | |
| 1457 | |
| 1458 c->tcp_nodelay = NGX_TCP_NODELAY_SET; | |
| 1459 } | |
| 1460 | |
| 581 | 1461 size = u->buffer.last - u->buffer.pos; |
| 1462 | |
| 1463 if (size) { | |
| 1464 u->buffer.last = u->buffer.pos; | |
| 1465 | |
| 1466 if (u->input_filter(u->input_filter_ctx, size) == NGX_ERROR) { | |
| 1467 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1468 return; | |
| 1469 } | |
| 1470 | |
| 583 | 1471 ngx_http_upstream_process_non_buffered_body(c->write); |
| 581 | 1472 |
| 1473 } else { | |
| 1474 u->buffer.pos = u->buffer.start; | |
| 1475 u->buffer.last = u->buffer.start; | |
| 1476 | |
| 1477 if (ngx_http_send_special(r, NGX_HTTP_FLUSH) == NGX_ERROR) { | |
| 1478 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1479 return; | |
| 1480 } | |
| 1481 } | |
| 1482 | |
| 1483 return; | |
| 1484 } | |
| 1485 | |
| 479 | 1486 /* TODO: preallocate event_pipe bufs, look "Content-Length" */ |
| 1487 | |
| 1488 #if 0 | |
| 1489 | |
| 1490 if (u->cache && u->cache->ctx.file.fd != NGX_INVALID_FILE) { | |
| 1491 if (ngx_close_file(u->cache->ctx.file.fd) == NGX_FILE_ERROR) { | |
| 583 | 1492 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
| 479 | 1493 ngx_close_file_n " \"%s\" failed", |
| 1494 u->cache->ctx.file.name.data); | |
| 1495 } | |
| 1496 } | |
| 1497 | |
| 1498 if (u->cachable) { | |
| 581 | 1499 header = (ngx_http_cache_header_t *) u->buffer->start; |
| 479 | 1500 |
| 1501 header->expires = u->cache->ctx.expires; | |
| 1502 header->last_modified = u->cache->ctx.last_modified; | |
| 1503 header->date = u->cache->ctx.date; | |
| 1504 header->length = r->headers_out.content_length_n; | |
| 1505 u->cache->ctx.length = r->headers_out.content_length_n; | |
| 1506 | |
| 1507 header->key_len = u->cache->ctx.key0.len; | |
| 1508 ngx_memcpy(&header->key, u->cache->ctx.key0.data, header->key_len); | |
| 1509 header->key[header->key_len] = LF; | |
| 1510 } | |
| 1511 | |
| 1512 #endif | |
| 1513 | |
| 581 | 1514 p = u->pipe; |
| 479 | 1515 |
| 1516 p->output_filter = (ngx_event_pipe_output_filter_pt) ngx_http_output_filter; | |
| 1517 p->output_ctx = r; | |
| 1518 p->tag = u->output.tag; | |
| 577 | 1519 p->bufs = u->conf->bufs; |
| 479 | 1520 p->busy_size = u->conf->busy_buffers_size; |
| 1521 p->upstream = u->peer.connection; | |
| 583 | 1522 p->downstream = c; |
| 479 | 1523 p->pool = r->pool; |
| 583 | 1524 p->log = c->log; |
| 577 | 1525 |
| 479 | 1526 p->cachable = u->cachable; |
| 1527 | |
| 501 | 1528 p->temp_file = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t)); |
| 1529 if (p->temp_file == NULL) { | |
| 479 | 1530 ngx_http_upstream_finalize_request(r, u, 0); |
| 1531 return; | |
| 1532 } | |
| 1533 | |
| 1534 p->temp_file->file.fd = NGX_INVALID_FILE; | |
| 583 | 1535 p->temp_file->file.log = c->log; |
| 479 | 1536 p->temp_file->path = u->conf->temp_path; |
| 1537 p->temp_file->pool = r->pool; | |
| 577 | 1538 |
| 479 | 1539 if (u->cachable) { |
| 1540 p->temp_file->persistent = 1; | |
| 1541 } else { | |
| 667 | 1542 p->temp_file->log_level = NGX_LOG_WARN; |
| 479 | 1543 p->temp_file->warn = "an upstream response is buffered " |
| 1544 "to a temporary file"; | |
| 1545 } | |
| 1546 | |
| 1547 p->max_temp_file_size = u->conf->max_temp_file_size; | |
| 1548 p->temp_file_write_size = u->conf->temp_file_write_size; | |
| 1549 | |
| 501 | 1550 p->preread_bufs = ngx_alloc_chain_link(r->pool); |
| 1551 if (p->preread_bufs == NULL) { | |
| 479 | 1552 ngx_http_upstream_finalize_request(r, u, 0); |
| 1553 return; | |
| 1554 } | |
| 581 | 1555 p->preread_bufs->buf = &u->buffer; |
| 479 | 1556 p->preread_bufs->next = NULL; |
| 581 | 1557 u->buffer.recycled = 1; |
| 1558 | |
| 1559 p->preread_size = u->buffer.last - u->buffer.pos; | |
| 479 | 1560 |
| 1561 if (u->cachable) { | |
| 1562 p->buf_to_file = ngx_calloc_buf(r->pool); | |
| 1563 if (p->buf_to_file == NULL) { | |
| 1564 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1565 return; | |
| 1566 } | |
| 581 | 1567 p->buf_to_file->pos = u->buffer.start; |
| 1568 p->buf_to_file->last = u->buffer.pos; | |
| 479 | 1569 p->buf_to_file->temporary = 1; |
| 1570 } | |
| 1571 | |
| 1572 if (ngx_event_flags & NGX_USE_AIO_EVENT) { | |
| 1573 /* the posted aio operation may currupt a shadow buffer */ | |
| 1574 p->single_buf = 1; | |
| 1575 } | |
| 1576 | |
| 1577 /* TODO: p->free_bufs = 0 if use ngx_create_chain_of_bufs() */ | |
| 1578 p->free_bufs = 1; | |
| 1579 | |
| 1580 /* | |
| 581 | 1581 * event_pipe would do u->buffer.last += p->preread_size |
| 479 | 1582 * as though these bytes were read |
| 1583 */ | |
| 581 | 1584 u->buffer.last = u->buffer.pos; |
| 479 | 1585 |
| 1586 if (u->conf->cyclic_temp_file) { | |
| 1587 | |
| 1588 /* | |
| 1589 * we need to disable the use of sendfile() if we use cyclic temp file | |
| 1590 * because the writing a new data may interfere with sendfile() | |
| 1591 * that uses the same kernel file pages (at least on FreeBSD) | |
| 1592 */ | |
| 1593 | |
| 1594 p->cyclic_temp_file = 1; | |
| 583 | 1595 c->sendfile = 0; |
| 479 | 1596 |
| 1597 } else { | |
| 1598 p->cyclic_temp_file = 0; | |
| 1599 } | |
| 1600 | |
| 1601 p->read_timeout = u->conf->read_timeout; | |
| 1602 p->send_timeout = clcf->send_timeout; | |
| 1603 p->send_lowat = clcf->send_lowat; | |
| 1604 | |
| 509 | 1605 u->peer.connection->read->handler = ngx_http_upstream_process_body; |
| 1606 r->write_event_handler = ngx_http_upstream_process_downstream; | |
| 479 | 1607 |
| 1608 ngx_http_upstream_process_body(u->peer.connection->read); | |
| 1609 } | |
| 1610 | |
| 1611 | |
| 487 | 1612 static void |
| 581 | 1613 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r) |
| 1614 { | |
| 1615 ngx_http_upstream_process_non_buffered_body(r->connection->write); | |
| 1616 } | |
| 1617 | |
| 1618 | |
| 1619 static void | |
| 1620 ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev) | |
| 1621 { | |
| 1622 size_t size; | |
| 1623 ssize_t n; | |
| 1624 ngx_buf_t *b; | |
| 583 | 1625 ngx_int_t rc; |
| 581 | 1626 ngx_uint_t do_write; |
| 884 | 1627 ngx_connection_t *c, *downstream, *upstream; |
| 581 | 1628 ngx_http_request_t *r; |
| 1629 ngx_http_upstream_t *u; | |
| 1630 ngx_http_core_loc_conf_t *clcf; | |
| 1631 | |
| 1632 c = ev->data; | |
|
756
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Igor Sysoev <igor@sysoev.ru>
parents:
755
diff
changeset
|
1633 r = c->data; |
|
d904b5cb3bba
fix building introduced by previous commit
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parents:
755
diff
changeset
|
1634 u = r->upstream; |
| 581 | 1635 |
| 1636 if (ev->write) { | |
| 1637 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1638 "http upstream process non buffered downstream"); | |
| 1639 c->log->action = "sending to client"; | |
| 1640 | |
| 1641 } else { | |
| 1642 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1643 "http upstream process non buffered upstream"); | |
| 1644 c->log->action = "reading upstream"; | |
| 1645 } | |
| 1646 | |
| 1647 if (ev->timedout) { | |
| 1648 if (ev->write) { | |
| 1649 c->timedout = 1; | |
| 611 | 1650 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
| 1651 | |
| 581 | 1652 } else { |
| 611 | 1653 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
| 581 | 1654 } |
|
755
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finalize nonbuffered request on timeout
Igor Sysoev <igor@sysoev.ru>
parents:
751
diff
changeset
|
1655 |
|
63b9dc652c3d
finalize nonbuffered request on timeout
Igor Sysoev <igor@sysoev.ru>
parents:
751
diff
changeset
|
1656 ngx_http_upstream_finalize_request(r, u, 0); |
|
63b9dc652c3d
finalize nonbuffered request on timeout
Igor Sysoev <igor@sysoev.ru>
parents:
751
diff
changeset
|
1657 return; |
| 581 | 1658 } |
| 1659 | |
| 884 | 1660 downstream = r->connection; |
| 1661 upstream = u->peer.connection; | |
| 581 | 1662 |
| 1663 b = &u->buffer; | |
| 1664 | |
| 1665 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 1666 | |
| 657 | 1667 do_write = ev->write || u->length == 0; |
| 581 | 1668 |
| 1669 for ( ;; ) { | |
| 1670 | |
| 1671 if (do_write) { | |
| 1672 | |
| 1673 if (u->out_bufs || u->busy_bufs) { | |
| 583 | 1674 rc = ngx_http_output_filter(r, u->out_bufs); |
| 1675 | |
| 884 | 1676 if (downstream->destroyed) { |
| 583 | 1677 return; |
| 1678 } | |
| 1679 | |
| 1680 if (rc == NGX_ERROR) { | |
| 581 | 1681 ngx_http_upstream_finalize_request(r, u, 0); |
| 1682 return; | |
| 1683 } | |
| 1684 | |
| 1685 ngx_chain_update_chains(&u->free_bufs, &u->busy_bufs, | |
| 1686 &u->out_bufs, u->output.tag); | |
| 1687 } | |
| 1688 | |
| 1689 if (u->busy_bufs == NULL) { | |
| 1690 | |
| 1691 if (u->length == 0 | |
| 884 | 1692 || upstream->read->eof |
| 1693 || upstream->read->error) | |
| 581 | 1694 { |
| 1695 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1696 return; | |
| 1697 } | |
| 1698 | |
| 1699 b->pos = b->start; | |
| 1700 b->last = b->start; | |
| 1701 } | |
| 1702 } | |
| 1703 | |
| 1704 size = b->end - b->last; | |
| 1705 | |
| 1706 if (size > u->length) { | |
| 1707 size = u->length; | |
| 1708 } | |
| 1709 | |
| 884 | 1710 if (size && upstream->read->ready) { |
| 1711 | |
| 1712 n = upstream->recv(upstream, b->last, size); | |
| 581 | 1713 |
| 1714 if (n == NGX_AGAIN) { | |
| 1715 break; | |
| 1716 } | |
| 1717 | |
| 1718 if (n > 0) { | |
| 1719 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { | |
| 1720 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1721 return; | |
| 1722 } | |
| 1723 } | |
| 1724 | |
| 1725 do_write = 1; | |
| 1726 | |
| 1727 continue; | |
| 1728 } | |
| 1729 | |
| 1730 break; | |
| 1731 } | |
| 1732 | |
| 884 | 1733 if (downstream->data == r) { |
| 1734 if (ngx_handle_write_event(downstream->write, clcf->send_lowat) | |
| 583 | 1735 == NGX_ERROR) |
| 1736 { | |
| 1737 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1738 return; | |
| 1739 } | |
| 581 | 1740 } |
| 1741 | |
|
1063
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a non-active client connection must not closed after send timeout
Igor Sysoev <igor@sysoev.ru>
parents:
1031
diff
changeset
|
1742 if (downstream->write->active && !downstream->write->ready) { |
| 884 | 1743 ngx_add_timer(downstream->write, clcf->send_timeout); |
| 1744 | |
| 1745 } else if (downstream->write->timer_set) { | |
| 1746 ngx_del_timer(downstream->write); | |
| 581 | 1747 } |
| 1748 | |
| 884 | 1749 if (ngx_handle_read_event(upstream->read, 0) == NGX_ERROR) { |
| 581 | 1750 ngx_http_upstream_finalize_request(r, u, 0); |
| 1751 return; | |
| 1752 } | |
| 1753 | |
|
1063
e2a6ecc5a3ae
a non-active client connection must not closed after send timeout
Igor Sysoev <igor@sysoev.ru>
parents:
1031
diff
changeset
|
1754 if (upstream->read->active && !upstream->read->ready) { |
| 884 | 1755 ngx_add_timer(upstream->read, u->conf->read_timeout); |
| 1756 | |
| 1757 } else if (upstream->read->timer_set) { | |
| 1758 ngx_del_timer(upstream->read); | |
| 581 | 1759 } |
| 1760 } | |
| 1761 | |
| 1762 | |
| 1763 static ngx_int_t | |
| 1764 ngx_http_upstream_non_buffered_filter_init(void *data) | |
| 1765 { | |
| 1766 return NGX_OK; | |
| 1767 } | |
| 1768 | |
| 1769 | |
| 1770 static ngx_int_t | |
| 1771 ngx_http_upstream_non_buffered_filter(void *data, ssize_t bytes) | |
| 1772 { | |
| 1773 ngx_http_request_t *r = data; | |
| 1774 | |
| 1775 ngx_buf_t *b; | |
| 1776 ngx_chain_t *cl, **ll; | |
| 1777 ngx_http_upstream_t *u; | |
| 1778 | |
| 1779 u = r->upstream; | |
| 1780 | |
| 1781 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
| 1782 ll = &cl->next; | |
| 1783 } | |
| 1784 | |
| 1785 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
| 1786 if (cl == NULL) { | |
| 1787 return NGX_ERROR; | |
| 1788 } | |
| 1789 | |
| 1790 *ll = cl; | |
| 1791 | |
| 1792 cl->buf->flush = 1; | |
| 1793 cl->buf->memory = 1; | |
| 1794 | |
| 1795 b = &u->buffer; | |
| 1796 | |
| 1797 cl->buf->pos = b->last; | |
| 1798 b->last += bytes; | |
| 1799 cl->buf->last = b->last; | |
| 1800 | |
| 1801 if (u->length == NGX_MAX_SIZE_T_VALUE) { | |
| 1802 return NGX_OK; | |
| 1803 } | |
| 1804 | |
| 1805 u->length -= bytes; | |
| 1806 | |
| 1807 return NGX_OK; | |
| 1808 } | |
| 1809 | |
| 1810 | |
| 1811 static void | |
| 509 | 1812 ngx_http_upstream_process_downstream(ngx_http_request_t *r) |
| 1813 { | |
| 1814 ngx_http_upstream_process_body(r->connection->write); | |
| 1815 } | |
| 1816 | |
| 1817 | |
| 1818 static void | |
| 487 | 1819 ngx_http_upstream_process_body(ngx_event_t *ev) |
| 479 | 1820 { |
| 509 | 1821 ngx_event_pipe_t *p; |
| 583 | 1822 ngx_connection_t *c, *downstream; |
| 1098 | 1823 ngx_http_log_ctx_t *ctx; |
| 479 | 1824 ngx_http_request_t *r; |
| 1825 ngx_http_upstream_t *u; | |
| 1826 | |
| 1827 c = ev->data; | |
| 1828 r = c->data; | |
| 1829 u = r->upstream; | |
| 583 | 1830 downstream = r->connection; |
| 479 | 1831 |
| 1832 if (ev->write) { | |
| 483 | 1833 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1834 "http upstream process downstream"); | |
| 1835 c->log->action = "sending to client"; | |
| 577 | 1836 |
| 479 | 1837 } else { |
| 483 | 1838 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1839 "http upstream process upstream"); | |
| 1840 c->log->action = "reading upstream"; | |
| 1098 | 1841 |
| 1842 ctx = c->log->data; | |
| 1843 ctx->current_request = r; | |
| 479 | 1844 } |
| 577 | 1845 |
| 581 | 1846 p = u->pipe; |
| 479 | 1847 |
| 1848 if (ev->timedout) { | |
| 1849 if (ev->write) { | |
| 527 | 1850 if (ev->delayed) { |
| 1851 | |
| 1852 ev->timedout = 0; | |
| 1853 ev->delayed = 0; | |
| 1854 | |
| 1855 if (!ev->ready) { | |
| 1856 ngx_add_timer(ev, p->send_timeout); | |
| 1857 | |
| 1858 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) | |
| 1859 { | |
| 1860 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1861 return; | |
| 1862 } | |
| 1863 | |
| 1864 return; | |
| 1865 } | |
| 1866 | |
| 1867 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { | |
| 583 | 1868 |
| 1869 if (downstream->destroyed) { | |
| 1870 return; | |
| 1871 } | |
| 1872 | |
| 527 | 1873 ngx_http_upstream_finalize_request(r, u, 0); |
| 1874 return; | |
| 1875 } | |
| 1876 | |
| 1877 } else { | |
| 1878 p->downstream_error = 1; | |
| 577 | 1879 c->timedout = 1; |
| 611 | 1880 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
| 527 | 1881 } |
| 479 | 1882 |
| 1883 } else { | |
| 577 | 1884 p->upstream_error = 1; |
| 611 | 1885 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
| 479 | 1886 } |
| 1887 | |
| 1888 } else { | |
| 527 | 1889 if (ev->write && ev->delayed) { |
| 1890 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1891 "http downstream delayed"); | |
| 1892 | |
| 1893 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) { | |
| 1894 return; | |
| 1895 } | |
| 1896 | |
| 1897 return; | |
| 1898 } | |
| 1899 | |
| 479 | 1900 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { |
| 583 | 1901 |
| 1902 if (downstream->destroyed) { | |
| 1903 return; | |
| 1904 } | |
| 1905 | |
| 479 | 1906 ngx_http_upstream_finalize_request(r, u, 0); |
| 1907 return; | |
| 1908 } | |
| 1909 } | |
| 577 | 1910 |
| 479 | 1911 if (u->peer.connection) { |
| 1912 | |
| 1913 #if (NGX_HTTP_FILE_CACHE) | |
| 1914 | |
| 1915 if (p->upstream_done && u->cachable) { | |
| 1916 if (ngx_http_cache_update(r) == NGX_ERROR) { | |
| 1917 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1918 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1919 return; | |
| 1920 } | |
| 1921 | |
| 1922 } else if (p->upstream_eof && u->cachable) { | |
| 1923 | |
| 1924 /* TODO: check length & update cache */ | |
| 1925 | |
| 1926 if (ngx_http_cache_update(r) == NGX_ERROR) { | |
| 1927 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1928 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1929 return; | |
| 1930 } | |
| 1931 } | |
| 1932 | |
| 1933 #endif | |
| 1934 | |
| 1935 if (p->upstream_done || p->upstream_eof || p->upstream_error) { | |
| 483 | 1936 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1937 "http upstream exit: %p", p->out); | |
| 479 | 1938 #if 0 |
| 1939 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1940 #endif | |
| 1941 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1942 return; | |
| 1943 } | |
| 1944 } | |
| 1945 | |
| 1946 if (p->downstream_error) { | |
| 483 | 1947 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1948 "http upstream downstream error"); | |
| 479 | 1949 |
| 1950 if (!u->cachable && u->peer.connection) { | |
| 1951 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1952 } | |
| 1953 } | |
| 1954 } | |
| 1955 | |
| 1956 | |
| 487 | 1957 static void |
| 1958 ngx_http_upstream_dummy_handler(ngx_event_t *wev) | |
| 479 | 1959 { |
| 1960 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
| 1961 "http upstream dummy handler"); | |
| 1962 } | |
| 1963 | |
| 1964 | |
| 487 | 1965 static void |
| 1966 ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u, | |
| 1967 ngx_uint_t ft_type) | |
| 479 | 1968 { |
| 884 | 1969 ngx_uint_t status, state; |
| 479 | 1970 |
| 1971 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 884 | 1972 "http next upstream, %xi", ft_type); |
| 479 | 1973 |
| 1974 #if 0 | |
| 1975 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1976 #endif | |
| 1977 | |
| 525 | 1978 if (ft_type == NGX_HTTP_UPSTREAM_FT_HTTP_404) { |
| 884 | 1979 state = NGX_PEER_NEXT; |
| 525 | 1980 } else { |
| 884 | 1981 state = NGX_PEER_FAILED; |
| 479 | 1982 } |
| 525 | 1983 |
| 884 | 1984 u->peer.free(&u->peer, u->peer.data, state); |
| 525 | 1985 |
| 479 | 1986 if (ft_type == NGX_HTTP_UPSTREAM_FT_TIMEOUT) { |
| 1987 ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_ETIMEDOUT, | |
| 1988 "upstream timed out"); | |
| 1989 } | |
| 577 | 1990 |
| 479 | 1991 if (u->peer.cached && ft_type == NGX_HTTP_UPSTREAM_FT_ERROR) { |
| 1992 status = 0; | |
| 1993 | |
| 1994 } else { | |
| 1995 switch(ft_type) { | |
| 1996 | |
| 1997 case NGX_HTTP_UPSTREAM_FT_TIMEOUT: | |
| 1998 status = NGX_HTTP_GATEWAY_TIME_OUT; | |
| 1999 break; | |
| 2000 | |
| 2001 case NGX_HTTP_UPSTREAM_FT_HTTP_500: | |
| 2002 status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 2003 break; | |
| 2004 | |
| 2005 case NGX_HTTP_UPSTREAM_FT_HTTP_404: | |
| 2006 status = NGX_HTTP_NOT_FOUND; | |
| 2007 break; | |
| 2008 | |
| 2009 /* | |
| 2010 * NGX_HTTP_UPSTREAM_FT_BUSY_LOCK and NGX_HTTP_UPSTREAM_FT_MAX_WAITING | |
| 2011 * never reach here | |
| 2012 */ | |
| 2013 | |
| 2014 default: | |
| 2015 status = NGX_HTTP_BAD_GATEWAY; | |
| 2016 } | |
| 2017 } | |
| 2018 | |
| 583 | 2019 if (r->connection->error) { |
| 479 | 2020 ngx_http_upstream_finalize_request(r, u, |
| 2021 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 2022 return; | |
| 2023 } | |
| 2024 | |
| 2025 if (status) { | |
| 2026 u->state->status = status; | |
| 2027 | |
| 525 | 2028 if (u->peer.tries == 0 || !(u->conf->next_upstream & ft_type)) { |
| 479 | 2029 |
| 2030 #if (NGX_HTTP_CACHE) | |
| 2031 | |
| 2032 if (u->stale && (u->conf->use_stale & ft_type)) { | |
| 2033 ngx_http_upstream_finalize_request(r, u, | |
| 525 | 2034 ngx_http_send_cached_response(r)); |
| 479 | 2035 return; |
| 2036 } | |
| 2037 | |
| 2038 #endif | |
| 2039 | |
| 2040 ngx_http_upstream_finalize_request(r, u, status); | |
| 2041 return; | |
| 2042 } | |
| 2043 } | |
| 2044 | |
| 2045 if (u->peer.connection) { | |
| 2046 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2047 "close http upstream connection: %d", | |
| 2048 u->peer.connection->fd); | |
| 577 | 2049 #if (NGX_HTTP_SSL) |
| 884 | 2050 |
| 577 | 2051 if (u->peer.connection->ssl) { |
| 884 | 2052 u->peer.connection->ssl->no_wait_shutdown = 1; |
| 2053 u->peer.connection->ssl->no_send_shutdown = 1; | |
| 2054 | |
| 2055 (void) ngx_ssl_shutdown(u->peer.connection); | |
| 577 | 2056 } |
| 2057 #endif | |
| 884 | 2058 |
| 479 | 2059 ngx_close_connection(u->peer.connection); |
| 2060 } | |
| 2061 | |
| 2062 #if 0 | |
| 2063 if (u->conf->busy_lock && !u->busy_locked) { | |
| 2064 ngx_http_upstream_busy_lock(p); | |
| 2065 return; | |
| 2066 } | |
| 2067 #endif | |
| 2068 | |
| 2069 ngx_http_upstream_connect(r, u); | |
| 2070 } | |
| 2071 | |
| 2072 | |
| 487 | 2073 static void |
| 569 | 2074 ngx_http_upstream_cleanup(void *data) |
| 2075 { | |
| 2076 ngx_http_request_t *r = data; | |
| 2077 | |
| 2078 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2079 "cleanup http upstream request: \"%V\"", &r->uri); | |
| 2080 | |
| 2081 ngx_http_upstream_finalize_request(r, r->upstream, NGX_DONE); | |
| 2082 } | |
| 2083 | |
| 2084 | |
| 2085 static void | |
| 487 | 2086 ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
| 2087 ngx_http_upstream_t *u, ngx_int_t rc) | |
| 479 | 2088 { |
|
889
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|
2089 ngx_time_t *tp; |
| 563 | 2090 |
| 483 | 2091 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| 2092 "finalize http upstream request: %i", rc); | |
| 479 | 2093 |
| 569 | 2094 *u->cleanup = NULL; |
| 2095 | |
|
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diff
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|
2096 if (u->state->response_sec) { |
| 563 | 2097 tp = ngx_timeofday(); |
|
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|
2098 u->state->response_sec = tp->sec - u->state->response_sec; |
|
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parents:
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diff
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|
2099 u->state->response_msec = tp->msec - u->state->response_msec; |
| 563 | 2100 } |
| 2101 | |
| 479 | 2102 u->finalize_request(r, rc); |
| 2103 | |
| 884 | 2104 u->peer.free(&u->peer, u->peer.data, 0); |
| 2105 | |
| 479 | 2106 if (u->peer.connection) { |
| 884 | 2107 |
| 577 | 2108 #if (NGX_HTTP_SSL) |
| 2109 | |
| 2110 /* TODO: do not shutdown persistent connection */ | |
| 2111 | |
| 2112 if (u->peer.connection->ssl) { | |
| 884 | 2113 |
| 2114 /* | |
| 2115 * We send the "close notify" shutdown alert to the upstream only | |
| 2116 * and do not wait its "close notify" shutdown alert. | |
| 2117 * It is acceptable according to the TLS standard. | |
| 2118 */ | |
| 2119 | |
| 2120 u->peer.connection->ssl->no_wait_shutdown = 1; | |
| 2121 | |
| 2122 (void) ngx_ssl_shutdown(u->peer.connection); | |
| 577 | 2123 } |
| 2124 #endif | |
| 884 | 2125 |
| 2126 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2127 "close http upstream connection: %d", | |
| 2128 u->peer.connection->fd); | |
| 2129 | |
| 479 | 2130 ngx_close_connection(u->peer.connection); |
| 2131 } | |
| 2132 | |
| 483 | 2133 u->peer.connection = NULL; |
| 2134 | |
| 563 | 2135 if (u->header_sent && (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE)) |
| 479 | 2136 { |
| 2137 rc = 0; | |
| 2138 } | |
| 2139 | |
| 581 | 2140 if (u->pipe && u->pipe->temp_file) { |
| 479 | 2141 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| 2142 "http upstream temp fd: %d", | |
| 581 | 2143 u->pipe->temp_file->file.fd); |
| 479 | 2144 } |
| 2145 | |
| 2146 #if 0 | |
| 2147 if (u->cache) { | |
| 2148 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 483 | 2149 "http upstream cache fd: %d", |
| 479 | 2150 u->cache->ctx.file.fd); |
| 2151 } | |
| 2152 #endif | |
| 2153 | |
| 515 | 2154 if (rc == NGX_DECLINED) { |
| 2155 return; | |
| 2156 } | |
| 2157 | |
| 483 | 2158 r->connection->log->action = "sending to client"; |
| 2159 | |
|
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|
2160 if (rc == 0) { |
|
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|
2161 if (r == r->main) { |
|
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diff
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|
2162 if (!r->post_action) { |
|
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|
2163 rc = ngx_http_send_special(r, NGX_HTTP_LAST); |
|
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|
2164 } |
|
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|
2165 |
|
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|
2166 } else { |
|
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diff
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|
2167 if (r->out) { |
|
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diff
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|
2168 rc = NGX_AGAIN; |
|
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2169 } |
|
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|
2170 } |
| 479 | 2171 } |
| 2172 | |
| 2173 ngx_http_finalize_request(r, rc); | |
| 2174 } | |
| 2175 | |
| 2176 | |
| 509 | 2177 static ngx_int_t |
| 2178 ngx_http_upstream_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2179 ngx_uint_t offset) | |
| 577 | 2180 { |
| 509 | 2181 ngx_table_elt_t **ph; |
| 577 | 2182 |
| 509 | 2183 ph = (ngx_table_elt_t **) ((char *) &r->upstream->headers_in + offset); |
| 2184 | |
| 2185 if (*ph == NULL) { | |
| 2186 *ph = h; | |
| 2187 } | |
| 2188 | |
| 2189 return NGX_OK; | |
| 2190 } | |
| 2191 | |
| 2192 | |
| 2193 static ngx_int_t | |
| 2194 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
| 2195 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2196 { | |
| 2197 ngx_array_t *pa; | |
| 2198 ngx_table_elt_t **ph; | |
| 2199 | |
| 2200 pa = (ngx_array_t *) ((char *) &r->upstream->headers_in + offset); | |
| 2201 | |
| 2202 if (pa->elts == NULL) { | |
| 2203 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
| 2204 { | |
| 2205 return NGX_ERROR; | |
| 2206 } | |
| 2207 } | |
| 2208 | |
| 2209 ph = ngx_array_push(pa); | |
| 2210 if (ph == NULL) { | |
| 2211 return NGX_ERROR; | |
| 2212 } | |
| 2213 | |
| 2214 *ph = h; | |
| 2215 | |
| 2216 return NGX_OK; | |
| 2217 } | |
| 2218 | |
| 2219 | |
| 2220 static ngx_int_t | |
| 2221 ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2222 ngx_uint_t offset) | |
| 2223 { | |
| 2224 return NGX_OK; | |
| 2225 } | |
| 2226 | |
| 2227 | |
| 2228 static ngx_int_t | |
| 527 | 2229 ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2230 ngx_uint_t offset) | |
| 577 | 2231 { |
| 527 | 2232 ngx_int_t n; |
| 2233 | |
| 2234 r->upstream->headers_in.x_accel_limit_rate = h; | |
| 2235 | |
| 2236 n = ngx_atoi(h->value.data, h->value.len); | |
| 2237 | |
| 2238 if (n != NGX_ERROR) { | |
| 2239 r->limit_rate = (size_t) n; | |
| 2240 } | |
| 2241 | |
| 2242 return NGX_OK; | |
| 2243 } | |
| 2244 | |
| 2245 | |
| 2246 static ngx_int_t | |
| 649 | 2247 ngx_http_upstream_process_buffering(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2248 ngx_uint_t offset) | |
| 2249 { | |
| 2250 u_char c0, c1, c2; | |
| 2251 | |
| 2252 if (r->upstream->conf->change_buffering) { | |
| 2253 | |
| 2254 if (h->value.len == 2) { | |
| 2255 c0 = ngx_tolower(h->value.data[0]); | |
| 2256 c1 = ngx_tolower(h->value.data[1]); | |
| 2257 | |
| 2258 if (c0 == 'n' && c1 == 'o') { | |
| 2259 r->upstream->buffering = 0; | |
| 2260 } | |
| 2261 | |
| 2262 } else if (h->value.len == 3) { | |
| 2263 c0 = ngx_tolower(h->value.data[0]); | |
| 2264 c1 = ngx_tolower(h->value.data[1]); | |
| 2265 c2 = ngx_tolower(h->value.data[2]); | |
| 2266 | |
| 2267 if (c0 == 'y' && c1 == 'e' && c2 == 's') { | |
| 2268 r->upstream->buffering = 1; | |
| 2269 } | |
| 2270 } | |
| 2271 } | |
| 2272 | |
| 2273 return NGX_OK; | |
| 2274 } | |
| 2275 | |
| 2276 | |
| 2277 static ngx_int_t | |
| 657 | 2278 ngx_http_upstream_process_charset(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2279 ngx_uint_t offset) | |
| 2280 { | |
| 2281 r->headers_out.override_charset = &h->value; | |
| 2282 | |
| 2283 return NGX_OK; | |
| 2284 } | |
| 2285 | |
| 2286 | |
| 2287 static ngx_int_t | |
| 509 | 2288 ngx_http_upstream_copy_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2289 ngx_uint_t offset) | |
| 2290 { | |
| 573 | 2291 ngx_table_elt_t *ho, **ph; |
| 509 | 2292 |
| 2293 ho = ngx_list_push(&r->headers_out.headers); | |
| 2294 if (ho == NULL) { | |
| 2295 return NGX_ERROR; | |
| 2296 } | |
| 2297 | |
| 2298 *ho = *h; | |
| 2299 | |
| 573 | 2300 if (offset) { |
| 2301 ph = (ngx_table_elt_t **) ((char *) &r->headers_out + offset); | |
| 2302 *ph = ho; | |
| 2303 } | |
| 2304 | |
| 509 | 2305 return NGX_OK; |
| 2306 } | |
| 2307 | |
| 2308 | |
| 2309 static ngx_int_t | |
| 2310 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r, | |
| 2311 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2312 { | |
| 2313 ngx_array_t *pa; | |
| 2314 ngx_table_elt_t *ho, **ph; | |
| 2315 | |
| 2316 pa = (ngx_array_t *) ((char *) &r->headers_out + offset); | |
| 2317 | |
| 2318 if (pa->elts == NULL) { | |
| 2319 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
| 2320 { | |
| 2321 return NGX_ERROR; | |
| 2322 } | |
| 2323 } | |
| 2324 | |
| 2325 ph = ngx_array_push(pa); | |
| 2326 if (ph == NULL) { | |
| 2327 return NGX_ERROR; | |
| 2328 } | |
| 2329 | |
| 2330 ho = ngx_list_push(&r->headers_out.headers); | |
| 2331 if (ho == NULL) { | |
| 2332 return NGX_ERROR; | |
| 2333 } | |
| 2334 | |
| 2335 *ho = *h; | |
| 2336 *ph = ho; | |
| 2337 | |
| 2338 return NGX_OK; | |
| 2339 } | |
| 2340 | |
| 2341 | |
| 2342 static ngx_int_t | |
| 2343 ngx_http_upstream_copy_content_type(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2344 ngx_uint_t offset) | |
| 2345 { | |
| 657 | 2346 u_char *p, *last; |
| 2347 | |
| 2348 r->headers_out.content_type_len = h->value.len; | |
| 509 | 2349 r->headers_out.content_type = h->value; |
| 2350 | |
| 657 | 2351 for (p = h->value.data; *p; p++) { |
| 2352 | |
| 2353 if (*p != ';') { | |
| 2354 continue; | |
| 2355 } | |
| 2356 | |
| 2357 last = p; | |
| 2358 | |
| 2359 while (*++p == ' ') { /* void */ } | |
| 2360 | |
|
1107
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parents:
1098
diff
changeset
|
2361 if (ngx_strncasecmp(p, (u_char *) "charset=", 8) != 0) { |
| 657 | 2362 continue; |
| 2363 } | |
| 2364 | |
| 2365 p += 8; | |
| 2366 | |
| 2367 r->headers_out.content_type_len = last - h->value.data; | |
| 2368 | |
| 2369 r->headers_out.charset.len = h->value.data + h->value.len - p; | |
| 2370 r->headers_out.charset.data = p; | |
|
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parents:
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diff
changeset
|
2371 |
|
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diff
changeset
|
2372 return NGX_OK; |
| 657 | 2373 } |
| 2374 | |
| 509 | 2375 return NGX_OK; |
| 2376 } | |
| 2377 | |
| 2378 | |
| 2379 static ngx_int_t | |
| 2380 ngx_http_upstream_copy_content_length(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2381 ngx_uint_t offset) | |
| 2382 { | |
| 2383 ngx_table_elt_t *ho; | |
| 2384 | |
| 2385 ho = ngx_list_push(&r->headers_out.headers); | |
| 2386 if (ho == NULL) { | |
| 2387 return NGX_ERROR; | |
| 2388 } | |
| 2389 | |
| 2390 *ho = *h; | |
| 2391 | |
| 2392 r->headers_out.content_length = ho; | |
| 2393 r->headers_out.content_length_n = ngx_atoof(h->value.data, h->value.len); | |
| 2394 | |
| 2395 return NGX_OK; | |
| 2396 } | |
| 2397 | |
| 2398 | |
| 2399 static ngx_int_t | |
| 2400 ngx_http_upstream_rewrite_location(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2401 ngx_uint_t offset) | |
| 2402 { | |
| 2403 ngx_int_t rc; | |
| 2404 ngx_table_elt_t *ho; | |
| 2405 | |
| 2406 ho = ngx_list_push(&r->headers_out.headers); | |
| 2407 if (ho == NULL) { | |
| 2408 return NGX_ERROR; | |
| 2409 } | |
| 2410 | |
| 2411 *ho = *h; | |
| 2412 | |
| 2413 if (r->upstream->rewrite_redirect) { | |
| 2414 rc = r->upstream->rewrite_redirect(r, ho, 0); | |
| 2415 | |
| 529 | 2416 if (rc == NGX_DECLINED) { |
| 2417 return NGX_OK; | |
| 2418 } | |
| 2419 | |
| 509 | 2420 if (rc == NGX_OK) { |
| 2421 r->headers_out.location = ho; | |
| 2422 | |
| 2423 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2424 "rewritten location: \"%V\"", &ho->value); | |
| 2425 } | |
| 2426 | |
| 2427 return rc; | |
| 2428 } | |
| 2429 | |
| 2430 /* | |
| 2431 * we do not set r->headers_out.location here to avoid the handling | |
| 2432 * the local redirects without a host name by ngx_http_header_filter() | |
| 2433 */ | |
| 2434 | |
| 2435 return NGX_OK; | |
| 2436 } | |
| 2437 | |
| 2438 | |
| 2439 static ngx_int_t | |
| 2440 ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2441 ngx_uint_t offset) | |
| 2442 { | |
| 2443 u_char *p; | |
| 2444 ngx_int_t rc; | |
| 2445 ngx_table_elt_t *ho; | |
| 2446 | |
| 2447 ho = ngx_list_push(&r->headers_out.headers); | |
| 2448 if (ho == NULL) { | |
| 2449 return NGX_ERROR; | |
| 2450 } | |
| 2451 | |
| 2452 *ho = *h; | |
| 2453 | |
| 2454 if (r->upstream->rewrite_redirect) { | |
| 2455 | |
| 2456 p = (u_char *) ngx_strstr(ho->value.data, "url="); | |
| 2457 | |
| 2458 if (p) { | |
| 2459 rc = r->upstream->rewrite_redirect(r, ho, p + 4 - ho->value.data); | |
| 2460 | |
| 2461 } else { | |
| 2462 return NGX_OK; | |
| 2463 } | |
| 2464 | |
| 529 | 2465 if (rc == NGX_DECLINED) { |
| 2466 return NGX_OK; | |
| 2467 } | |
| 2468 | |
| 509 | 2469 #if (NGX_DEBUG) |
| 2470 if (rc == NGX_OK) { | |
| 2471 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2472 "rewritten refresh: \"%V\"", &ho->value); | |
| 2473 } | |
| 2474 #endif | |
| 2475 | |
| 2476 return rc; | |
| 2477 } | |
| 2478 | |
| 2479 return NGX_OK; | |
| 2480 } | |
| 2481 | |
| 2482 | |
| 2483 #if (NGX_HTTP_GZIP) | |
| 2484 | |
| 2485 static ngx_int_t | |
| 2486 ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
| 2487 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2488 { | |
| 2489 ngx_table_elt_t *ho; | |
| 2490 | |
| 2491 ho = ngx_list_push(&r->headers_out.headers); | |
| 2492 if (ho == NULL) { | |
| 2493 return NGX_ERROR; | |
| 2494 } | |
| 2495 | |
| 2496 *ho = *h; | |
| 2497 | |
| 2498 r->headers_out.content_encoding = ho; | |
| 2499 | |
| 2500 return NGX_OK; | |
| 2501 } | |
| 2502 | |
| 2503 #endif | |
| 2504 | |
| 2505 | |
| 487 | 2506 static ngx_int_t |
| 573 | 2507 ngx_http_upstream_add_variables(ngx_conf_t *cf) |
| 479 | 2508 { |
| 880 | 2509 ngx_http_variable_t *var, *v; |
| 479 | 2510 |
| 573 | 2511 for (v = ngx_http_upstream_vars; v->name.len; v++) { |
| 2512 var = ngx_http_add_variable(cf, &v->name, v->flags); | |
| 2513 if (var == NULL) { | |
| 2514 return NGX_ERROR; | |
| 2515 } | |
| 2516 | |
| 637 | 2517 var->get_handler = v->get_handler; |
| 573 | 2518 var->data = v->data; |
| 2519 } | |
| 2520 | |
| 479 | 2521 return NGX_OK; |
| 2522 } | |
| 509 | 2523 |
| 2524 | |
| 573 | 2525 static ngx_int_t |
| 1181 | 2526 ngx_http_upstream_addr_variable(ngx_http_request_t *r, |
| 2527 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2528 { | |
| 2529 u_char *p; | |
| 2530 size_t len; | |
| 2531 ngx_uint_t i; | |
| 2532 ngx_http_upstream_state_t *state; | |
| 2533 | |
| 2534 v->valid = 1; | |
| 2535 v->no_cachable = 0; | |
| 2536 v->not_found = 0; | |
| 2537 | |
| 2538 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) { | |
| 2539 v->not_found = 1; | |
| 2540 return NGX_OK; | |
| 2541 } | |
| 2542 | |
| 2543 len = 0; | |
| 2544 state = r->upstream_states->elts; | |
| 2545 | |
| 2546 for (i = 0; i < r->upstream_states->nelts; i++) { | |
| 2547 if (state[i].peer) { | |
| 2548 len += state[i].peer->len + 2; | |
| 2549 | |
| 2550 } else { | |
| 2551 len += 3; | |
| 2552 } | |
| 2553 } | |
| 2554 | |
| 2555 p = ngx_palloc(r->pool, len); | |
| 2556 if (p == NULL) { | |
| 2557 return NGX_ERROR; | |
| 2558 } | |
| 2559 | |
| 2560 v->data = p; | |
| 2561 | |
| 2562 i = 0; | |
| 2563 | |
| 2564 for ( ;; ) { | |
| 2565 if (state[i].peer) { | |
| 2566 p = ngx_cpymem(p, state[i].peer->data, state[i].peer->len); | |
| 2567 } | |
| 2568 | |
| 2569 if (++i == r->upstream_states->nelts) { | |
| 2570 break; | |
| 2571 } | |
| 2572 | |
| 2573 if (state[i].peer) { | |
| 2574 *p++ = ','; | |
| 2575 *p++ = ' '; | |
| 2576 | |
| 2577 } else { | |
| 2578 *p++ = ' '; | |
| 2579 *p++ = ':'; | |
| 2580 *p++ = ' '; | |
| 2581 | |
| 2582 if (++i == r->upstream_states->nelts) { | |
| 2583 break; | |
| 2584 } | |
| 2585 | |
| 2586 continue; | |
| 2587 } | |
| 2588 } | |
| 2589 | |
| 2590 v->len = p - v->data; | |
| 2591 | |
| 2592 return NGX_OK; | |
| 2593 } | |
| 2594 | |
| 2595 | |
| 2596 static ngx_int_t | |
| 573 | 2597 ngx_http_upstream_status_variable(ngx_http_request_t *r, |
| 2598 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2599 { | |
| 2600 u_char *p; | |
| 2601 size_t len; | |
| 2602 ngx_uint_t i; | |
| 2603 ngx_http_upstream_state_t *state; | |
| 2604 | |
| 2605 v->valid = 1; | |
| 2606 v->no_cachable = 0; | |
| 2607 v->not_found = 0; | |
| 2608 | |
|
1168
4d0d12446c3b
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Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2609 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) { |
| 573 | 2610 v->not_found = 1; |
| 2611 return NGX_OK; | |
| 2612 } | |
| 2613 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2614 len = r->upstream_states->nelts * (3 + 2); |
| 573 | 2615 |
| 2616 p = ngx_palloc(r->pool, len); | |
| 2617 if (p == NULL) { | |
| 2618 return NGX_ERROR; | |
| 2619 } | |
| 2620 | |
| 2621 v->data = p; | |
| 2622 | |
| 2623 i = 0; | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2624 state = r->upstream_states->elts; |
| 573 | 2625 |
| 2626 for ( ;; ) { | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
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parents:
1166
diff
changeset
|
2627 if (state[i].status) { |
|
4d0d12446c3b
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Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2628 p = ngx_sprintf(p, "%ui", state[i].status); |
| 573 | 2629 |
| 2630 } else { | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2631 *p++ = '-'; |
| 573 | 2632 } |
| 2633 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2634 if (++i == r->upstream_states->nelts) { |
| 573 | 2635 break; |
| 2636 } | |
| 2637 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2638 if (state[i].peer) { |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2639 *p++ = ','; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2640 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2641 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2642 } else { |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2643 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2644 *p++ = ':'; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2645 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2646 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2647 if (++i == r->upstream_states->nelts) { |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2648 break; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2649 } |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2650 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2651 continue; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2652 } |
| 573 | 2653 } |
| 2654 | |
| 2655 v->len = p - v->data; | |
| 2656 | |
| 2657 return NGX_OK; | |
| 2658 } | |
| 2659 | |
| 2660 | |
| 2661 static ngx_int_t | |
| 2662 ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
| 2663 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2664 { | |
| 2665 u_char *p; | |
| 2666 size_t len; | |
| 2667 ngx_uint_t i; | |
|
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2668 ngx_msec_int_t ms; |
| 573 | 2669 ngx_http_upstream_state_t *state; |
| 2670 | |
| 2671 v->valid = 1; | |
| 2672 v->no_cachable = 0; | |
| 2673 v->not_found = 0; | |
| 2674 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2675 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) { |
| 573 | 2676 v->not_found = 1; |
| 2677 return NGX_OK; | |
| 2678 } | |
| 2679 | |
|
1168
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store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2680 len = r->upstream_states->nelts * (NGX_TIME_T_LEN + 4 + 2); |
| 573 | 2681 |
| 2682 p = ngx_palloc(r->pool, len); | |
| 2683 if (p == NULL) { | |
| 2684 return NGX_ERROR; | |
| 2685 } | |
| 2686 | |
| 2687 v->data = p; | |
| 2688 | |
| 2689 i = 0; | |
|
1168
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Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2690 state = r->upstream_states->elts; |
| 573 | 2691 |
| 2692 for ( ;; ) { | |
|
1168
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1166
diff
changeset
|
2693 if (state[i].status) { |
|
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2694 ms = state[i].response_sec * 1000 + state[i].response_msec; |
|
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2695 ms = (ms >= 0) ? ms : 0; |
|
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2696 p = ngx_sprintf(p, "%d.%03d", ms / 1000, ms % 1000); |
|
1168
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diff
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|
2697 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
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1166
diff
changeset
|
2698 } else { |
|
4d0d12446c3b
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Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2699 *p++ = '-'; |
| 573 | 2700 } |
| 2701 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2702 if (++i == r->upstream_states->nelts) { |
| 573 | 2703 break; |
| 2704 } | |
| 2705 | |
|
1168
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store the upstream states before X-Accel-Redirect to a next upstream
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1166
diff
changeset
|
2706 if (state[i].peer) { |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2707 *p++ = ','; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2708 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
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parents:
1166
diff
changeset
|
2709 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
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1166
diff
changeset
|
2710 } else { |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2711 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2712 *p++ = ':'; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2713 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
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1166
diff
changeset
|
2714 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
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1166
diff
changeset
|
2715 if (++i == r->upstream_states->nelts) { |
|
4d0d12446c3b
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Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2716 break; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
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1166
diff
changeset
|
2717 } |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
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1166
diff
changeset
|
2718 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
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1166
diff
changeset
|
2719 continue; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
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1166
diff
changeset
|
2720 } |
| 573 | 2721 } |
| 2722 | |
| 2723 v->len = p - v->data; | |
| 2724 | |
| 2725 return NGX_OK; | |
| 2726 } | |
| 2727 | |
| 2728 | |
| 1162 | 2729 ngx_int_t |
| 2730 ngx_http_upstream_header_variable(ngx_http_request_t *r, | |
| 2731 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2732 { | |
| 2733 if (r->upstream == NULL) { | |
| 2734 v->not_found = 1; | |
| 2735 return NGX_OK; | |
| 2736 } | |
| 2737 | |
| 2738 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, | |
| 2739 &r->upstream->headers_in.headers.part, | |
| 2740 sizeof("upstream_http_") - 1); | |
| 2741 } | |
| 2742 | |
| 2743 | |
| 651 | 2744 static char * |
| 2745 ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy) | |
| 2746 { | |
| 884 | 2747 char *rv; |
| 2748 void *mconf; | |
| 2749 ngx_str_t *value; | |
| 2750 ngx_url_t u; | |
| 2751 ngx_uint_t m; | |
| 2752 ngx_conf_t pcf; | |
| 2753 ngx_http_module_t *module; | |
| 2754 ngx_http_conf_ctx_t *ctx, *http_ctx; | |
| 2755 ngx_http_upstream_srv_conf_t *uscf; | |
| 2756 | |
| 2757 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 2758 | |
| 2759 value = cf->args->elts; | |
| 2760 u.host = value[1]; | |
| 2761 u.no_resolve = 1; | |
| 2762 | |
| 2763 uscf = ngx_http_upstream_add(cf, &u, NGX_HTTP_UPSTREAM_CREATE | |
| 2764 |NGX_HTTP_UPSTREAM_WEIGHT | |
| 2765 |NGX_HTTP_UPSTREAM_MAX_FAILS | |
| 2766 |NGX_HTTP_UPSTREAM_FAIL_TIMEOUT | |
| 2767 |NGX_HTTP_UPSTREAM_DOWN | |
| 2768 |NGX_HTTP_UPSTREAM_BACKUP); | |
| 2769 if (uscf == NULL) { | |
| 2770 return NGX_CONF_ERROR; | |
| 2771 } | |
| 2772 | |
| 651 | 2773 |
| 2774 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); | |
| 2775 if (ctx == NULL) { | |
| 2776 return NGX_CONF_ERROR; | |
| 2777 } | |
| 2778 | |
| 884 | 2779 http_ctx = cf->ctx; |
| 2780 ctx->main_conf = http_ctx->main_conf; | |
| 651 | 2781 |
| 2782 /* the upstream{}'s srv_conf */ | |
| 2783 | |
| 2784 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 2785 if (ctx->srv_conf == NULL) { | |
| 2786 return NGX_CONF_ERROR; | |
| 2787 } | |
| 2788 | |
| 2789 ctx->srv_conf[ngx_http_upstream_module.ctx_index] = uscf; | |
| 2790 | |
| 884 | 2791 uscf->srv_conf = ctx->srv_conf; |
| 2792 | |
| 651 | 2793 |
| 2794 /* the upstream{}'s loc_conf */ | |
| 2795 | |
| 2796 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 2797 if (ctx->loc_conf == NULL) { | |
| 2798 return NGX_CONF_ERROR; | |
| 2799 } | |
| 2800 | |
| 2801 for (m = 0; ngx_modules[m]; m++) { | |
| 2802 if (ngx_modules[m]->type != NGX_HTTP_MODULE) { | |
| 2803 continue; | |
| 2804 } | |
| 2805 | |
| 2806 module = ngx_modules[m]->ctx; | |
| 2807 | |
| 884 | 2808 if (module->create_srv_conf) { |
| 2809 mconf = module->create_srv_conf(cf); | |
| 2810 if (mconf == NULL) { | |
| 2811 return NGX_CONF_ERROR; | |
| 2812 } | |
| 2813 | |
| 2814 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf; | |
| 2815 } | |
| 2816 | |
| 651 | 2817 if (module->create_loc_conf) { |
| 2818 mconf = module->create_loc_conf(cf); | |
| 2819 if (mconf == NULL) { | |
| 2820 return NGX_CONF_ERROR; | |
| 2821 } | |
| 2822 | |
| 2823 ctx->loc_conf[ngx_modules[m]->ctx_index] = mconf; | |
| 2824 } | |
| 2825 } | |
| 2826 | |
| 2827 | |
| 2828 /* parse inside upstream{} */ | |
| 2829 | |
| 2830 pcf = *cf; | |
| 2831 cf->ctx = ctx; | |
| 2832 cf->cmd_type = NGX_HTTP_UPS_CONF; | |
| 2833 | |
| 2834 rv = ngx_conf_parse(cf, NULL); | |
| 2835 | |
| 2836 *cf = pcf; | |
| 2837 | |
| 2838 if (rv != NGX_CONF_OK) { | |
| 2839 return rv; | |
| 2840 } | |
| 2841 | |
| 2842 if (uscf->servers == NULL) { | |
| 2843 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 2844 "no servers are inside upstream"); | |
| 2845 return NGX_CONF_ERROR; | |
| 2846 } | |
| 2847 | |
| 2848 return rv; | |
| 2849 } | |
| 2850 | |
| 2851 | |
| 2852 static char * | |
| 2853 ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 2854 { | |
| 2855 ngx_http_upstream_srv_conf_t *uscf = conf; | |
| 2856 | |
| 884 | 2857 time_t fail_timeout; |
| 2858 ngx_str_t *value, s; | |
| 2859 ngx_url_t u; | |
| 2860 ngx_int_t weight, max_fails; | |
| 2861 ngx_uint_t i; | |
| 2862 ngx_http_upstream_server_t *us; | |
| 651 | 2863 |
| 2864 if (uscf->servers == NULL) { | |
| 884 | 2865 uscf->servers = ngx_array_create(cf->pool, 4, |
| 2866 sizeof(ngx_http_upstream_server_t)); | |
| 651 | 2867 if (uscf->servers == NULL) { |
| 2868 return NGX_CONF_ERROR; | |
| 2869 } | |
| 2870 } | |
| 2871 | |
| 884 | 2872 us = ngx_array_push(uscf->servers); |
| 2873 if (us == NULL) { | |
| 651 | 2874 return NGX_CONF_ERROR; |
| 2875 } | |
| 2876 | |
| 884 | 2877 ngx_memzero(us, sizeof(ngx_http_upstream_server_t)); |
| 2878 | |
| 651 | 2879 value = cf->args->elts; |
| 2880 | |
| 2881 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 2882 | |
| 2883 u.url = value[1]; | |
| 906 | 2884 u.default_port = 80; |
| 651 | 2885 |
| 2886 if (ngx_parse_url(cf, &u) != NGX_OK) { | |
| 2887 if (u.err) { | |
| 2888 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 2889 "%s in upstream \"%V\"", u.err, &u.url); | |
| 2890 } | |
| 2891 | |
| 2892 return NGX_CONF_ERROR; | |
| 2893 } | |
| 2894 | |
| 663 | 2895 weight = 1; |
| 884 | 2896 max_fails = 1; |
| 2897 fail_timeout = 10; | |
| 2898 | |
| 2899 for (i = 2; i < cf->args->nelts; i++) { | |
| 2900 | |
| 2901 if (ngx_strncmp(value[i].data, "weight=", 7) == 0) { | |
| 2902 | |
| 2903 if (!(uscf->flags & NGX_HTTP_UPSTREAM_WEIGHT)) { | |
| 2904 goto invalid; | |
| 2905 } | |
| 2906 | |
| 2907 weight = ngx_atoi(&value[i].data[7], value[i].len - 7); | |
| 663 | 2908 |
| 2909 if (weight == NGX_ERROR || weight == 0) { | |
| 2910 goto invalid; | |
| 2911 } | |
| 2912 | |
| 884 | 2913 continue; |
| 2914 } | |
| 2915 | |
| 2916 if (ngx_strncmp(value[i].data, "max_fails=", 10) == 0) { | |
| 2917 | |
| 2918 if (!(uscf->flags & NGX_HTTP_UPSTREAM_MAX_FAILS)) { | |
| 2919 goto invalid; | |
| 2920 } | |
| 2921 | |
| 2922 max_fails = ngx_atoi(&value[i].data[10], value[i].len - 10); | |
| 2923 | |
| 2924 if (max_fails == NGX_ERROR) { | |
| 2925 goto invalid; | |
| 2926 } | |
| 2927 | |
| 2928 continue; | |
| 663 | 2929 } |
| 884 | 2930 |
| 2931 if (ngx_strncmp(value[i].data, "fail_timeout=", 13) == 0) { | |
| 2932 | |
| 2933 if (!(uscf->flags & NGX_HTTP_UPSTREAM_FAIL_TIMEOUT)) { | |
| 2934 goto invalid; | |
| 2935 } | |
| 2936 | |
| 2937 s.len = value[i].len - 13; | |
| 2938 s.data = &value[i].data[13]; | |
| 2939 | |
| 2940 fail_timeout = ngx_parse_time(&s, 1); | |
| 2941 | |
| 2942 if (fail_timeout < 0) { | |
| 2943 goto invalid; | |
| 2944 } | |
| 2945 | |
| 2946 continue; | |
| 2947 } | |
| 2948 | |
| 2949 if (ngx_strncmp(value[i].data, "down", 4) == 0) { | |
| 2950 | |
| 2951 if (!(uscf->flags & NGX_HTTP_UPSTREAM_DOWN)) { | |
| 2952 goto invalid; | |
| 2953 } | |
| 2954 | |
| 2955 us->down = 1; | |
| 2956 | |
| 2957 continue; | |
| 2958 } | |
| 2959 | |
| 2960 goto invalid; | |
| 663 | 2961 } |
| 2962 | |
| 884 | 2963 us->addrs = u.addrs; |
| 2964 us->naddrs = u.naddrs; | |
| 2965 us->weight = weight; | |
| 2966 us->max_fails = max_fails; | |
| 2967 us->fail_timeout = fail_timeout; | |
| 651 | 2968 |
| 2969 return NGX_CONF_OK; | |
| 663 | 2970 |
| 2971 invalid: | |
| 2972 | |
| 884 | 2973 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 2974 "invalid parameter \"%V\"", &value[i]); | |
| 663 | 2975 |
| 2976 return NGX_CONF_ERROR; | |
| 651 | 2977 } |
| 2978 | |
| 2979 | |
| 2980 ngx_http_upstream_srv_conf_t * | |
| 884 | 2981 ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags) |
| 651 | 2982 { |
| 2983 ngx_uint_t i; | |
| 884 | 2984 ngx_http_upstream_server_t *us; |
| 651 | 2985 ngx_http_upstream_srv_conf_t *uscf, **uscfp; |
| 2986 ngx_http_upstream_main_conf_t *umcf; | |
| 2987 | |
| 884 | 2988 if (!(flags & NGX_HTTP_UPSTREAM_CREATE)) { |
| 2989 | |
| 651 | 2990 if (ngx_parse_url(cf, u) != NGX_OK) { |
| 2991 if (u->err) { | |
| 2992 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 2993 "%s in upstream \"%V\"", u->err, &u->url); | |
| 2994 } | |
| 2995 | |
| 2996 return NULL; | |
| 2997 } | |
| 2998 } | |
| 2999 | |
| 3000 umcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_upstream_module); | |
| 3001 | |
| 3002 uscfp = umcf->upstreams.elts; | |
| 3003 | |
| 3004 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
| 906 | 3005 |
| 3006 if (uscfp[i]->host.len != u->host.len | |
| 884 | 3007 || ngx_strncasecmp(uscfp[i]->host.data, u->host.data, u->host.len) |
| 3008 != 0) | |
| 3009 { | |
| 651 | 3010 continue; |
| 3011 } | |
| 3012 | |
| 884 | 3013 if ((flags & NGX_HTTP_UPSTREAM_CREATE) |
| 3014 && (uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE)) | |
| 651 | 3015 { |
| 884 | 3016 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 3017 "duplicate upstream \"%V\"", &u->host); | |
| 3018 return NULL; | |
| 651 | 3019 } |
| 884 | 3020 |
| 906 | 3021 if ((uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE) && u->port) { |
| 884 | 3022 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
| 906 | 3023 "upstream \"%V\" may not have port %d", |
| 3024 &u->host, u->port); | |
| 3025 return NULL; | |
| 3026 } | |
| 3027 | |
| 3028 if ((flags & NGX_HTTP_UPSTREAM_CREATE) && uscfp[i]->port) { | |
| 3029 ngx_log_error(NGX_LOG_WARN, cf->log, 0, | |
| 3030 "upstream \"%V\" may not have port %d in %s:%ui", | |
| 3031 &u->host, uscfp[i]->port, | |
| 3032 uscfp[i]->file_name.data, uscfp[i]->line); | |
| 3033 return NULL; | |
| 3034 } | |
| 3035 | |
| 3036 if (uscfp[i]->port != u->port) { | |
| 3037 continue; | |
| 884 | 3038 } |
| 3039 | |
| 3040 return uscfp[i]; | |
| 651 | 3041 } |
| 3042 | |
| 3043 uscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_srv_conf_t)); | |
| 3044 if (uscf == NULL) { | |
| 3045 return NULL; | |
| 3046 } | |
| 3047 | |
| 884 | 3048 uscf->flags = flags; |
| 651 | 3049 uscf->host = u->host; |
| 3050 uscf->file_name = cf->conf_file->file.name; | |
| 3051 uscf->line = cf->conf_file->line; | |
| 906 | 3052 uscf->port = u->port; |
| 3053 uscf->default_port = u->default_port; | |
| 884 | 3054 |
| 3055 if (u->naddrs == 1) { | |
| 3056 uscf->servers = ngx_array_create(cf->pool, 1, | |
| 3057 sizeof(ngx_http_upstream_server_t)); | |
| 3058 if (uscf->servers == NULL) { | |
| 3059 return NGX_CONF_ERROR; | |
| 3060 } | |
| 3061 | |
| 3062 us = ngx_array_push(uscf->servers); | |
| 3063 if (us == NULL) { | |
| 3064 return NGX_CONF_ERROR; | |
| 3065 } | |
| 3066 | |
| 3067 ngx_memzero(us, sizeof(ngx_http_upstream_server_t)); | |
| 3068 | |
| 3069 us->addrs = u->addrs; | |
| 3070 us->naddrs = u->naddrs; | |
| 3071 } | |
| 651 | 3072 |
| 3073 uscfp = ngx_array_push(&umcf->upstreams); | |
| 3074 if (uscfp == NULL) { | |
| 3075 return NULL; | |
| 3076 } | |
| 3077 | |
| 3078 *uscfp = uscf; | |
| 3079 | |
| 3080 return uscf; | |
| 3081 } | |
| 3082 | |
| 3083 | |
| 509 | 3084 static void * |
| 3085 ngx_http_upstream_create_main_conf(ngx_conf_t *cf) | |
| 3086 { | |
| 3087 ngx_http_upstream_main_conf_t *umcf; | |
| 3088 | |
| 3089 umcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_main_conf_t)); | |
| 3090 if (umcf == NULL) { | |
| 3091 return NULL; | |
| 3092 } | |
| 3093 | |
| 651 | 3094 if (ngx_array_init(&umcf->upstreams, cf->pool, 4, |
| 3095 sizeof(ngx_http_upstream_srv_conf_t *)) | |
| 3096 != NGX_OK) | |
| 3097 { | |
| 3098 return NGX_CONF_ERROR; | |
| 3099 } | |
| 3100 | |
| 509 | 3101 return umcf; |
| 3102 } | |
| 3103 | |
| 3104 | |
| 3105 static char * | |
| 651 | 3106 ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf) |
| 509 | 3107 { |
| 3108 ngx_http_upstream_main_conf_t *umcf = conf; | |
| 3109 | |
| 651 | 3110 ngx_uint_t i; |
| 3111 ngx_array_t headers_in; | |
| 3112 ngx_hash_key_t *hk; | |
| 3113 ngx_hash_init_t hash; | |
| 884 | 3114 ngx_http_upstream_init_pt init; |
| 651 | 3115 ngx_http_upstream_header_t *header; |
| 3116 ngx_http_upstream_srv_conf_t **uscfp; | |
| 3117 | |
| 3118 uscfp = umcf->upstreams.elts; | |
| 3119 | |
| 3120 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
| 884 | 3121 |
| 3122 init = uscfp[i]->peer.init_upstream ? uscfp[i]->peer.init_upstream: | |
| 3123 ngx_http_upstream_init_round_robin; | |
| 3124 | |
| 3125 if (init(cf, uscfp[i]) != NGX_OK) { | |
| 651 | 3126 return NGX_CONF_ERROR; |
| 3127 } | |
| 3128 } | |
| 649 | 3129 |
| 663 | 3130 |
| 884 | 3131 /* upstream_headers_in_hash */ |
| 3132 | |
| 649 | 3133 if (ngx_array_init(&headers_in, cf->temp_pool, 32, sizeof(ngx_hash_key_t)) |
| 3134 != NGX_OK) | |
| 509 | 3135 { |
| 3136 return NGX_CONF_ERROR; | |
| 3137 } | |
| 3138 | |
| 649 | 3139 for (header = ngx_http_upstream_headers_in; header->name.len; header++) { |
| 3140 hk = ngx_array_push(&headers_in); | |
| 3141 if (hk == NULL) { | |
| 3142 return NGX_CONF_ERROR; | |
| 3143 } | |
| 3144 | |
| 3145 hk->key = header->name; | |
| 3146 hk->key_hash = ngx_hash_key_lc(header->name.data, header->name.len); | |
| 3147 hk->value = header; | |
| 3148 } | |
| 3149 | |
| 3150 hash.hash = &umcf->headers_in_hash; | |
| 3151 hash.key = ngx_hash_key_lc; | |
| 3152 hash.max_size = 512; | |
|
751
bae59a740c40
align hash bucket size to cache line
Igor Sysoev <igor@sysoev.ru>
parents:
750
diff
changeset
|
3153 hash.bucket_size = ngx_align(64, ngx_cacheline_size); |
| 649 | 3154 hash.name = "upstream_headers_in_hash"; |
| 3155 hash.pool = cf->pool; | |
| 3156 hash.temp_pool = NULL; | |
| 3157 | |
| 3158 if (ngx_hash_init(&hash, headers_in.elts, headers_in.nelts) != NGX_OK) { | |
| 3159 return NGX_CONF_ERROR; | |
| 3160 } | |
| 509 | 3161 |
| 3162 return NGX_CONF_OK; | |
| 3163 } |