Mercurial > hg > nginx
annotate src/http/ngx_http_upstream.c @ 1168:4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Wed, 18 Apr 2007 20:23:19 +0000 |
| parents | bde5e4134759 |
| children | ea5ecb1aae88 |
| 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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25 static void ngx_http_upstream_process_body_in_memory(ngx_event_t *rev); |
| 479 | 26 static void ngx_http_upstream_send_response(ngx_http_request_t *r, |
| 487 | 27 ngx_http_upstream_t *u); |
| 581 | 28 static void |
| 29 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r); | |
| 30 static void ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev); | |
| 31 static ngx_int_t ngx_http_upstream_non_buffered_filter_init(void *data); | |
| 32 static ngx_int_t ngx_http_upstream_non_buffered_filter(void *data, | |
| 33 ssize_t bytes); | |
| 509 | 34 static void ngx_http_upstream_process_downstream(ngx_http_request_t *r); |
| 479 | 35 static void ngx_http_upstream_process_body(ngx_event_t *ev); |
| 36 static void ngx_http_upstream_dummy_handler(ngx_event_t *wev); | |
| 37 static void ngx_http_upstream_next(ngx_http_request_t *r, | |
| 487 | 38 ngx_http_upstream_t *u, ngx_uint_t ft_type); |
| 569 | 39 static void ngx_http_upstream_cleanup(void *data); |
| 479 | 40 static void ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
| 487 | 41 ngx_http_upstream_t *u, ngx_int_t rc); |
| 479 | 42 |
| 509 | 43 static ngx_int_t ngx_http_upstream_process_header_line(ngx_http_request_t *r, |
| 44 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 45 static ngx_int_t | |
| 46 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
| 47 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 48 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, | |
| 49 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 527 | 50 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, |
| 51 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 649 | 52 static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r, |
| 509 | 53 ngx_table_elt_t *h, ngx_uint_t offset); |
| 657 | 54 static ngx_int_t ngx_http_upstream_process_charset(ngx_http_request_t *r, |
| 55 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 649 | 56 static ngx_int_t ngx_http_upstream_copy_header_line(ngx_http_request_t *r, |
| 509 | 57 ngx_table_elt_t *h, ngx_uint_t offset); |
| 58 static ngx_int_t | |
| 59 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r, | |
| 60 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 61 static ngx_int_t ngx_http_upstream_copy_content_type(ngx_http_request_t *r, | |
| 62 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 63 static ngx_int_t ngx_http_upstream_copy_content_length(ngx_http_request_t *r, | |
| 64 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 65 static ngx_int_t ngx_http_upstream_rewrite_location(ngx_http_request_t *r, | |
| 66 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 67 static ngx_int_t ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, | |
| 68 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 69 #if (NGX_HTTP_GZIP) | |
| 70 static ngx_int_t ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
| 71 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 72 #endif | |
| 73 | |
| 573 | 74 static ngx_int_t ngx_http_upstream_add_variables(ngx_conf_t *cf); |
| 75 static ngx_int_t ngx_http_upstream_status_variable(ngx_http_request_t *r, | |
| 76 ngx_http_variable_value_t *v, uintptr_t data); | |
| 77 static ngx_int_t ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
| 78 ngx_http_variable_value_t *v, uintptr_t data); | |
| 79 | |
| 651 | 80 static char *ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy); |
| 81 static char *ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 82 void *conf); | |
| 83 | |
| 509 | 84 static void *ngx_http_upstream_create_main_conf(ngx_conf_t *cf); |
| 651 | 85 static char *ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf); |
| 509 | 86 |
| 577 | 87 #if (NGX_HTTP_SSL) |
| 591 | 88 static void ngx_http_upstream_ssl_init_connection(ngx_http_request_t *, |
| 89 ngx_http_upstream_t *u, ngx_connection_t *c); | |
| 577 | 90 static void ngx_http_upstream_ssl_handshake(ngx_connection_t *c); |
| 91 #endif | |
| 92 | |
| 509 | 93 |
| 94 ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = { | |
| 95 | |
| 96 { ngx_string("Status"), | |
| 97 ngx_http_upstream_process_header_line, | |
| 98 offsetof(ngx_http_upstream_headers_in_t, status), | |
| 649 | 99 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 509 | 100 |
| 101 { ngx_string("Content-Type"), | |
| 102 ngx_http_upstream_process_header_line, | |
| 103 offsetof(ngx_http_upstream_headers_in_t, content_type), | |
| 673 | 104 ngx_http_upstream_copy_content_type, 0, 1 }, |
| 509 | 105 |
| 106 { ngx_string("Content-Length"), | |
| 107 ngx_http_upstream_process_header_line, | |
| 108 offsetof(ngx_http_upstream_headers_in_t, content_length), | |
| 515 | 109 ngx_http_upstream_copy_content_length, 0, 0 }, |
| 509 | 110 |
| 111 { ngx_string("Date"), | |
| 112 ngx_http_upstream_process_header_line, | |
| 113 offsetof(ngx_http_upstream_headers_in_t, date), | |
| 649 | 114 ngx_http_upstream_copy_header_line, |
| 115 offsetof(ngx_http_headers_out_t, date), 0 }, | |
| 509 | 116 |
| 117 { ngx_string("Server"), | |
| 118 ngx_http_upstream_process_header_line, | |
| 119 offsetof(ngx_http_upstream_headers_in_t, server), | |
| 649 | 120 ngx_http_upstream_copy_header_line, |
| 121 offsetof(ngx_http_headers_out_t, server), 0 }, | |
| 509 | 122 |
| 529 | 123 { ngx_string("WWW-Authenticate"), |
| 124 ngx_http_upstream_process_header_line, | |
| 125 offsetof(ngx_http_upstream_headers_in_t, www_authenticate), | |
| 126 ngx_http_upstream_copy_header_line, 0, 0 }, | |
| 127 | |
| 509 | 128 { ngx_string("Location"), |
| 129 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 130 ngx_http_upstream_rewrite_location, 0, 0 }, |
| 509 | 131 |
| 132 { ngx_string("Refresh"), | |
| 133 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 134 ngx_http_upstream_rewrite_refresh, 0, 0 }, |
| 135 | |
| 136 { ngx_string("Set-Cookie"), | |
| 137 ngx_http_upstream_ignore_header_line, 0, | |
| 531 | 138 ngx_http_upstream_copy_header_line, 0, 1 }, |
| 139 | |
| 140 { ngx_string("Content-Disposition"), | |
| 141 ngx_http_upstream_ignore_header_line, 0, | |
| 142 ngx_http_upstream_copy_header_line, 0, 1 }, | |
| 509 | 143 |
| 144 { ngx_string("Cache-Control"), | |
| 145 ngx_http_upstream_process_multi_header_lines, | |
| 146 offsetof(ngx_http_upstream_headers_in_t, cache_control), | |
| 147 ngx_http_upstream_copy_multi_header_lines, | |
| 515 | 148 offsetof(ngx_http_headers_out_t, cache_control), 1 }, |
| 509 | 149 |
| 573 | 150 { ngx_string("Expires"), |
| 151 ngx_http_upstream_process_header_line, | |
| 152 offsetof(ngx_http_upstream_headers_in_t, expires), | |
| 153 ngx_http_upstream_copy_header_line, | |
| 154 offsetof(ngx_http_headers_out_t, expires), 1 }, | |
| 155 | |
| 577 | 156 { ngx_string("Accept-Ranges"), |
| 157 ngx_http_upstream_process_header_line, | |
| 158 offsetof(ngx_http_upstream_headers_in_t, accept_ranges), | |
| 159 ngx_http_upstream_copy_header_line, | |
| 160 offsetof(ngx_http_headers_out_t, accept_ranges), 1 }, | |
| 161 | |
| 509 | 162 { ngx_string("Connection"), |
| 163 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 164 ngx_http_upstream_ignore_header_line, 0, 0 }, |
| 509 | 165 |
| 641 | 166 { ngx_string("Keep-Alive"), |
| 167 ngx_http_upstream_ignore_header_line, 0, | |
| 168 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 169 | |
| 509 | 170 { ngx_string("X-Powered-By"), |
| 171 ngx_http_upstream_ignore_header_line, 0, | |
| 649 | 172 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 509 | 173 |
| 174 { ngx_string("X-Accel-Expires"), | |
| 175 ngx_http_upstream_process_header_line, | |
| 176 offsetof(ngx_http_upstream_headers_in_t, x_accel_expires), | |
| 649 | 177 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 515 | 178 |
| 179 { ngx_string("X-Accel-Redirect"), | |
| 180 ngx_http_upstream_process_header_line, | |
| 181 offsetof(ngx_http_upstream_headers_in_t, x_accel_redirect), | |
| 182 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 509 | 183 |
| 527 | 184 { ngx_string("X-Accel-Limit-Rate"), |
| 185 ngx_http_upstream_process_limit_rate, 0, | |
| 186 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 187 | |
| 649 | 188 { ngx_string("X-Accel-Buffering"), |
| 189 ngx_http_upstream_process_buffering, 0, | |
| 190 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 191 | |
| 657 | 192 { ngx_string("X-Accel-Charset"), |
| 193 ngx_http_upstream_process_charset, 0, | |
| 194 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 195 | |
| 509 | 196 #if (NGX_HTTP_GZIP) |
| 197 { ngx_string("Content-Encoding"), | |
| 198 ngx_http_upstream_process_header_line, | |
| 199 offsetof(ngx_http_upstream_headers_in_t, content_encoding), | |
| 515 | 200 ngx_http_upstream_copy_content_encoding, 0, 0 }, |
| 509 | 201 #endif |
| 202 | |
| 515 | 203 { ngx_null_string, NULL, 0, NULL, 0, 0 } |
| 509 | 204 }; |
| 479 | 205 |
| 206 | |
| 651 | 207 static ngx_command_t ngx_http_upstream_commands[] = { |
| 208 | |
| 209 { ngx_string("upstream"), | |
| 210 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1, | |
| 211 ngx_http_upstream, | |
| 212 0, | |
| 213 0, | |
| 214 NULL }, | |
| 215 | |
| 216 { ngx_string("server"), | |
| 884 | 217 NGX_HTTP_UPS_CONF|NGX_CONF_1MORE, |
| 651 | 218 ngx_http_upstream_server, |
| 219 NGX_HTTP_SRV_CONF_OFFSET, | |
| 220 0, | |
| 221 NULL }, | |
| 222 | |
| 223 ngx_null_command | |
| 224 }; | |
| 225 | |
| 226 | |
| 227 static ngx_http_module_t ngx_http_upstream_module_ctx = { | |
| 573 | 228 ngx_http_upstream_add_variables, /* preconfiguration */ |
| 509 | 229 NULL, /* postconfiguration */ |
| 230 | |
| 231 ngx_http_upstream_create_main_conf, /* create main configuration */ | |
| 651 | 232 ngx_http_upstream_init_main_conf, /* init main configuration */ |
| 479 | 233 |
| 234 NULL, /* create server configuration */ | |
| 235 NULL, /* merge server configuration */ | |
| 236 | |
| 237 NULL, /* create location configuration */ | |
| 238 NULL /* merge location configuration */ | |
| 239 }; | |
| 577 | 240 |
| 479 | 241 |
| 242 ngx_module_t ngx_http_upstream_module = { | |
| 509 | 243 NGX_MODULE_V1, |
| 479 | 244 &ngx_http_upstream_module_ctx, /* module context */ |
| 651 | 245 ngx_http_upstream_commands, /* module directives */ |
| 479 | 246 NGX_HTTP_MODULE, /* module type */ |
| 541 | 247 NULL, /* init master */ |
| 479 | 248 NULL, /* init module */ |
| 541 | 249 NULL, /* init process */ |
| 250 NULL, /* init thread */ | |
| 251 NULL, /* exit thread */ | |
| 252 NULL, /* exit process */ | |
| 253 NULL, /* exit master */ | |
| 254 NGX_MODULE_V1_PADDING | |
| 479 | 255 }; |
| 256 | |
| 257 | |
| 573 | 258 static ngx_http_variable_t ngx_http_upstream_vars[] = { |
| 259 | |
| 637 | 260 { ngx_string("upstream_status"), NULL, |
| 583 | 261 ngx_http_upstream_status_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
| 573 | 262 |
| 637 | 263 { ngx_string("upstream_response_time"), NULL, |
| 583 | 264 ngx_http_upstream_response_time_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
| 573 | 265 |
| 637 | 266 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
| 573 | 267 }; |
| 268 | |
| 269 | |
| 487 | 270 void |
| 271 ngx_http_upstream_init(ngx_http_request_t *r) | |
| 479 | 272 { |
| 509 | 273 ngx_connection_t *c; |
| 569 | 274 ngx_http_cleanup_t *cln; |
| 509 | 275 ngx_http_upstream_t *u; |
| 276 ngx_http_core_loc_conf_t *clcf; | |
| 479 | 277 |
| 278 c = r->connection; | |
| 279 | |
| 280 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 281 "http init upstream, client timer: %d", c->read->timer_set); | |
| 282 | |
| 283 if (c->read->timer_set) { | |
| 284 ngx_del_timer(c->read); | |
| 285 } | |
| 286 | |
| 629 | 287 u = r->upstream; |
| 288 | |
| 289 if (!r->post_action && !u->conf->ignore_client_abort) { | |
| 615 | 290 r->read_event_handler = ngx_http_upstream_rd_check_broken_connection; |
| 291 r->write_event_handler = ngx_http_upstream_wr_check_broken_connection; | |
| 292 } | |
| 577 | 293 |
| 479 | 294 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) { |
| 295 | |
| 296 if (!c->write->active) { | |
| 531 | 297 if (ngx_add_event(c->write, NGX_WRITE_EVENT, NGX_CLEAR_EVENT) |
| 298 == NGX_ERROR) | |
| 479 | 299 { |
| 300 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 301 return; | |
| 302 } | |
| 303 } | |
| 304 } | |
| 305 | |
| 537 | 306 if (r->request_body) { |
| 307 u->request_bufs = r->request_body->bufs; | |
| 308 } | |
| 509 | 309 |
| 884 | 310 if (u->conf->upstream->peer.init(r, u->conf->upstream) != NGX_OK) { |
| 311 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 312 return; | |
| 313 } | |
| 314 | |
| 537 | 315 if (u->create_request(r) != NGX_OK) { |
| 479 | 316 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 317 return; | |
| 318 } | |
| 319 | |
| 509 | 320 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
| 479 | 321 |
| 322 u->output.sendfile = r->connection->sendfile; | |
| 323 u->output.pool = r->pool; | |
| 324 u->output.bufs.num = 1; | |
| 509 | 325 u->output.bufs.size = clcf->client_body_buffer_size; |
| 479 | 326 u->output.output_filter = ngx_chain_writer; |
| 327 u->output.filter_ctx = &u->writer; | |
| 328 | |
| 329 u->writer.pool = r->pool; | |
| 330 | |
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331 if (r->upstream_states == NULL) { |
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332 |
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333 r->upstream_states = ngx_array_create(r->pool, 1, |
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334 sizeof(ngx_http_upstream_state_t)); |
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335 if (r->upstream_states == NULL) { |
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336 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); |
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337 return; |
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338 } |
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339 |
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340 } else { |
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341 |
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342 u->state = ngx_array_push(r->upstream_states); |
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343 if (u->state == NULL) { |
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344 ngx_http_upstream_finalize_request(r, u, |
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345 NGX_HTTP_INTERNAL_SERVER_ERROR); |
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346 return; |
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347 } |
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348 |
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349 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t)); |
| 479 | 350 } |
| 351 | |
| 593 | 352 cln = ngx_http_cleanup_add(r, 0); |
| 569 | 353 if (cln == NULL) { |
| 354 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 355 return; | |
| 356 } | |
| 357 | |
| 358 cln->handler = ngx_http_upstream_cleanup; | |
| 359 cln->data = r; | |
| 360 u->cleanup = &cln->handler; | |
| 361 | |
| 479 | 362 ngx_http_upstream_connect(r, u); |
| 363 } | |
| 364 | |
| 365 | |
| 487 | 366 static void |
| 509 | 367 ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r) |
| 368 { | |
| 369 ngx_http_upstream_check_broken_connection(r, r->connection->read); | |
| 370 } | |
| 371 | |
| 372 | |
| 373 static void | |
| 374 ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r) | |
| 375 { | |
| 376 ngx_http_upstream_check_broken_connection(r, r->connection->write); | |
| 377 } | |
| 378 | |
| 379 | |
| 380 static void | |
| 381 ngx_http_upstream_check_broken_connection(ngx_http_request_t *r, | |
| 382 ngx_event_t *ev) | |
| 479 | 383 { |
| 384 int n; | |
| 385 char buf[1]; | |
| 577 | 386 ngx_err_t err; |
| 479 | 387 ngx_connection_t *c; |
| 388 ngx_http_upstream_t *u; | |
| 389 | |
| 527 | 390 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, ev->log, 0, |
| 391 "http upstream check client, write event:%d, \"%V\"", | |
| 392 ev->write, &r->uri); | |
| 479 | 393 |
| 509 | 394 c = r->connection; |
| 483 | 395 u = r->upstream; |
| 396 | |
| 583 | 397 if (c->error) { |
| 527 | 398 ngx_http_upstream_finalize_request(r, u, |
| 399 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 400 return; | |
| 401 } | |
| 402 | |
| 483 | 403 if (u->peer.connection == NULL) { |
| 404 return; | |
| 405 } | |
| 406 | |
| 479 | 407 #if (NGX_HAVE_KQUEUE) |
| 408 | |
| 409 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { | |
| 410 | |
| 411 if (!ev->pending_eof) { | |
| 412 return; | |
| 413 } | |
| 414 | |
| 415 ev->eof = 1; | |
| 583 | 416 c->error = 1; |
| 479 | 417 |
| 418 if (ev->kq_errno) { | |
| 419 ev->error = 1; | |
| 420 } | |
| 421 | |
| 422 if (!u->cachable && u->peer.connection) { | |
| 423 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno, | |
| 527 | 424 "kevent() reported that client closed prematurely " |
| 425 "connection, so upstream connection is closed too"); | |
| 479 | 426 ngx_http_upstream_finalize_request(r, u, |
| 427 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 428 return; | |
| 429 } | |
| 430 | |
| 431 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno, | |
| 432 "kevent() reported that client closed " | |
| 433 "prematurely connection"); | |
| 434 | |
| 435 if (u->peer.connection == NULL) { | |
| 436 ngx_http_upstream_finalize_request(r, u, | |
| 437 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 438 return; | |
| 439 } | |
| 440 | |
| 441 return; | |
| 442 } | |
| 443 | |
| 444 #endif | |
| 445 | |
| 446 n = recv(c->fd, buf, 1, MSG_PEEK); | |
| 447 | |
| 448 err = ngx_socket_errno; | |
| 449 | |
| 1109 | 450 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ev->log, err, |
| 451 "http upstream recv(): %d", n); | |
| 452 | |
| 479 | 453 /* |
| 454 * we do not need to disable the write event because | |
| 455 * that event has NGX_USE_CLEAR_EVENT type | |
| 456 */ | |
| 457 | |
| 458 if (ev->write && (n >= 0 || err == NGX_EAGAIN)) { | |
| 459 return; | |
| 460 } | |
| 461 | |
| 462 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) { | |
| 463 if (ngx_del_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) { | |
| 464 ngx_http_upstream_finalize_request(r, u, | |
| 465 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 466 return; | |
| 467 } | |
| 468 } | |
| 469 | |
| 470 if (n > 0) { | |
| 471 return; | |
| 472 } | |
| 473 | |
| 474 if (n == -1) { | |
| 475 if (err == NGX_EAGAIN) { | |
| 476 return; | |
| 477 } | |
| 478 | |
| 479 ev->error = 1; | |
| 480 | |
| 483 | 481 } else { /* n == 0 */ |
| 479 | 482 err = 0; |
| 483 } | |
| 484 | |
| 529 | 485 ev->eof = 1; |
| 583 | 486 c->error = 1; |
| 529 | 487 |
| 479 | 488 if (!u->cachable && u->peer.connection) { |
| 489 ngx_log_error(NGX_LOG_INFO, ev->log, err, | |
| 490 "client closed prematurely connection, " | |
| 491 "so upstream connection is closed too"); | |
| 492 ngx_http_upstream_finalize_request(r, u, | |
| 493 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 494 return; | |
| 495 } | |
| 496 | |
| 497 ngx_log_error(NGX_LOG_INFO, ev->log, err, | |
| 498 "client closed prematurely connection"); | |
| 499 | |
| 500 if (u->peer.connection == NULL) { | |
| 501 ngx_http_upstream_finalize_request(r, u, | |
| 502 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 503 return; | |
| 504 } | |
| 505 } | |
| 506 | |
| 507 | |
| 487 | 508 static void |
| 509 ngx_http_upstream_connect(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 479 | 510 { |
| 591 | 511 ngx_int_t rc; |
| 665 | 512 ngx_time_t *tp; |
| 591 | 513 ngx_connection_t *c; |
| 479 | 514 |
| 483 | 515 r->connection->log->action = "connecting to upstream"; |
| 479 | 516 |
| 517 r->connection->single_connection = 0; | |
| 518 | |
|
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519 if (u->state && u->state->response_sec) { |
| 665 | 520 tp = ngx_timeofday(); |
|
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521 u->state->response_sec = tp->sec - u->state->response_sec; |
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522 u->state->response_msec = tp->msec - u->state->response_msec; |
| 665 | 523 } |
| 524 | |
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525 u->state = ngx_array_push(r->upstream_states); |
| 665 | 526 if (u->state == NULL) { |
| 527 ngx_http_upstream_finalize_request(r, u, | |
| 528 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 529 return; | |
| 530 } | |
| 531 | |
| 532 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t)); | |
| 533 | |
| 534 tp = ngx_timeofday(); | |
|
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535 u->state->response_sec = tp->sec; |
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536 u->state->response_msec = tp->msec; |
| 665 | 537 |
| 479 | 538 rc = ngx_event_connect_peer(&u->peer); |
| 539 | |
| 540 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 541 "http upstream connect: %i", rc); | |
| 542 | |
| 543 if (rc == NGX_ERROR) { | |
| 544 ngx_http_upstream_finalize_request(r, u, | |
| 545 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 546 return; | |
| 547 } | |
| 548 | |
| 884 | 549 u->state->peer = u->peer.name; |
| 479 | 550 |
| 543 | 551 if (rc == NGX_BUSY) { |
| 552 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no live upstreams"); | |
| 553 } | |
| 554 | |
| 555 if (rc == NGX_BUSY || rc == NGX_DECLINED) { | |
| 479 | 556 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
| 557 return; | |
| 558 } | |
| 559 | |
| 577 | 560 /* rc == NGX_OK || rc == NGX_AGAIN */ |
| 561 | |
| 479 | 562 c = u->peer.connection; |
| 563 | |
| 564 c->data = r; | |
| 591 | 565 |
| 509 | 566 c->write->handler = ngx_http_upstream_send_request_handler; |
| 567 c->read->handler = ngx_http_upstream_process_header; | |
| 479 | 568 |
| 569 c->sendfile = r->connection->sendfile; | |
| 570 | |
| 571 c->pool = r->pool; | |
| 572 c->read->log = c->write->log = c->log = r->connection->log; | |
| 573 | |
| 574 /* init or reinit the ngx_output_chain() and ngx_chain_writer() contexts */ | |
| 575 | |
| 576 u->writer.out = NULL; | |
| 577 u->writer.last = &u->writer.out; | |
| 578 u->writer.connection = c; | |
| 579 u->writer.limit = 0; | |
| 580 | |
| 581 if (u->request_sent) { | |
| 509 | 582 if (ngx_http_upstream_reinit(r, u) != NGX_OK) { |
| 583 ngx_http_upstream_finalize_request(r, u, | |
| 584 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 585 return; | |
| 586 } | |
| 479 | 587 } |
| 588 | |
|
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589 if (r->request_body |
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590 && r->request_body->buf |
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591 && r->request_body->temp_file |
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592 && r == r->main) |
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593 { |
| 573 | 594 /* |
| 595 * the r->request_body->buf can be reused for one request only, | |
| 596 * the subrequests should allocate their own temporay bufs | |
| 597 */ | |
| 598 | |
| 599 u->output.free = ngx_alloc_chain_link(r->pool); | |
| 600 if (u->output.free == NULL) { | |
| 601 ngx_http_upstream_finalize_request(r, u, | |
| 602 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 603 return; | |
| 479 | 604 } |
| 573 | 605 |
| 606 u->output.free->buf = r->request_body->buf; | |
| 607 u->output.free->next = NULL; | |
| 608 u->output.allocated = 1; | |
| 609 | |
| 610 r->request_body->buf->pos = r->request_body->buf->start; | |
| 611 r->request_body->buf->last = r->request_body->buf->start; | |
| 612 r->request_body->buf->tag = u->output.tag; | |
| 479 | 613 } |
| 614 | |
| 615 u->request_sent = 0; | |
| 616 | |
| 617 if (rc == NGX_AGAIN) { | |
| 618 ngx_add_timer(c->write, u->conf->connect_timeout); | |
| 619 return; | |
| 620 } | |
| 621 | |
| 577 | 622 #if (NGX_HTTP_SSL) |
| 623 | |
| 591 | 624 if (u->conf->ssl && c->ssl == NULL) { |
| 625 ngx_http_upstream_ssl_init_connection(r, u, c); | |
| 577 | 626 return; |
| 627 } | |
| 628 | |
| 629 #endif | |
| 630 | |
| 479 | 631 ngx_http_upstream_send_request(r, u); |
| 632 } | |
| 633 | |
| 634 | |
| 577 | 635 #if (NGX_HTTP_SSL) |
| 636 | |
| 637 static void | |
| 591 | 638 ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r, |
| 639 ngx_http_upstream_t *u, ngx_connection_t *c) | |
| 640 { | |
| 884 | 641 ngx_int_t rc; |
| 591 | 642 |
| 643 if (ngx_ssl_create_connection(u->conf->ssl, c, | |
| 644 NGX_SSL_BUFFER|NGX_SSL_CLIENT) | |
| 645 == NGX_ERROR) | |
| 646 { | |
| 647 ngx_http_upstream_finalize_request(r, u, | |
| 648 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 649 return; | |
| 650 } | |
| 651 | |
| 652 c->sendfile = 0; | |
| 619 | 653 u->output.sendfile = 0; |
| 591 | 654 |
| 884 | 655 if (ngx_ssl_set_session(c, u->peer.ssl_session) != NGX_OK) { |
| 591 | 656 ngx_http_upstream_finalize_request(r, u, |
| 657 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 658 return; | |
| 659 } | |
| 660 | |
| 641 | 661 r->connection->log->action = "SSL handshaking to upstream"; |
| 662 | |
| 591 | 663 rc = ngx_ssl_handshake(c); |
| 664 | |
| 665 if (rc == NGX_AGAIN) { | |
| 666 c->ssl->handler = ngx_http_upstream_ssl_handshake; | |
| 667 return; | |
| 668 } | |
| 669 | |
| 670 ngx_http_upstream_ssl_handshake(c); | |
| 671 } | |
| 672 | |
| 673 | |
| 674 static void | |
| 577 | 675 ngx_http_upstream_ssl_handshake(ngx_connection_t *c) |
| 676 { | |
| 677 ngx_http_request_t *r; | |
| 678 ngx_http_upstream_t *u; | |
| 679 | |
| 680 r = c->data; | |
| 681 u = r->upstream; | |
| 682 | |
| 683 if (c->ssl->handshaked) { | |
| 684 | |
| 884 | 685 u->peer.save_session(&u->peer, u->peer.data); |
| 686 | |
| 577 | 687 c->write->handler = ngx_http_upstream_send_request_handler; |
| 688 c->read->handler = ngx_http_upstream_process_header; | |
| 689 | |
| 690 ngx_http_upstream_send_request(r, u); | |
| 691 | |
| 692 return; | |
| 693 } | |
| 694 | |
| 695 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 696 | |
| 697 } | |
| 698 | |
| 699 #endif | |
| 700 | |
| 701 | |
| 509 | 702 static ngx_int_t |
| 487 | 703 ngx_http_upstream_reinit(ngx_http_request_t *r, ngx_http_upstream_t *u) |
| 479 | 704 { |
| 705 ngx_chain_t *cl; | |
| 706 | |
| 509 | 707 if (u->reinit_request(r) != NGX_OK) { |
| 708 return NGX_ERROR; | |
| 709 } | |
| 710 | |
| 711 ngx_memzero(&r->upstream->headers_in, | |
| 712 sizeof(ngx_http_upstream_headers_in_t)); | |
| 713 | |
| 714 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, | |
| 591 | 715 sizeof(ngx_table_elt_t)) |
| 716 != NGX_OK) | |
| 509 | 717 { |
| 718 return NGX_ERROR; | |
| 479 | 719 } |
| 720 | |
| 721 /* reinit the request chain */ | |
| 577 | 722 |
| 509 | 723 for (cl = u->request_bufs; cl; cl = cl->next) { |
| 479 | 724 cl->buf->pos = cl->buf->start; |
| 725 cl->buf->file_pos = 0; | |
| 726 } | |
| 727 | |
| 509 | 728 /* reinit the subrequest's ngx_output_chain() context */ |
| 729 | |
| 573 | 730 if (r->request_body && r->request_body->temp_file |
| 597 | 731 && r != r->main && u->output.buf) |
| 573 | 732 { |
| 733 u->output.free = ngx_alloc_chain_link(r->pool); | |
| 734 if (u->output.free == NULL) { | |
| 735 return NGX_ERROR; | |
| 509 | 736 } |
| 573 | 737 |
| 738 u->output.free->buf = u->output.buf; | |
| 739 u->output.free->next = NULL; | |
| 740 | |
| 741 u->output.buf->pos = u->output.buf->start; | |
| 742 u->output.buf->last = u->output.buf->start; | |
| 509 | 743 } |
| 479 | 744 |
| 745 u->output.buf = NULL; | |
| 746 u->output.in = NULL; | |
| 747 u->output.busy = NULL; | |
| 577 | 748 |
| 581 | 749 /* reinit u->buffer */ |
| 577 | 750 |
| 479 | 751 #if 0 |
| 752 if (u->cache) { | |
| 581 | 753 u->buffer.pos = u->buffer.start + u->cache->ctx.header_size; |
| 754 u->buffer.last = u->buffer.pos; | |
| 479 | 755 |
| 756 } else { | |
| 581 | 757 u->buffer.pos = u->buffer.start; |
| 758 u->buffer.last = u->buffer.start; | |
| 479 | 759 } |
| 760 #else | |
| 509 | 761 |
| 581 | 762 u->buffer.pos = u->buffer.start; |
| 763 u->buffer.last = u->buffer.start; | |
| 509 | 764 |
| 479 | 765 #endif |
| 766 | |
| 509 | 767 return NGX_OK; |
| 479 | 768 } |
| 769 | |
| 770 | |
| 487 | 771 static void |
| 772 ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 479 | 773 { |
|
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774 ngx_int_t rc; |
| 483 | 775 ngx_connection_t *c; |
| 577 | 776 |
| 479 | 777 c = u->peer.connection; |
| 778 | |
| 779 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 780 "http upstream send request"); | |
| 781 | |
|
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782 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) { |
| 1166 | 783 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
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784 return; |
| 479 | 785 } |
| 786 | |
| 483 | 787 c->log->action = "sending request to upstream"; |
| 479 | 788 |
| 509 | 789 rc = ngx_output_chain(&u->output, u->request_sent ? NULL : u->request_bufs); |
| 479 | 790 |
| 791 u->request_sent = 1; | |
| 792 | |
| 793 if (rc == NGX_ERROR) { | |
| 794 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 795 return; | |
| 796 } | |
| 797 | |
| 798 if (c->write->timer_set) { | |
| 799 ngx_del_timer(c->write); | |
| 800 } | |
| 801 | |
| 802 if (rc == NGX_AGAIN) { | |
| 803 ngx_add_timer(c->write, u->conf->send_timeout); | |
| 804 | |
| 805 if (ngx_handle_write_event(c->write, u->conf->send_lowat) == NGX_ERROR) | |
| 806 { | |
| 807 ngx_http_upstream_finalize_request(r, u, | |
| 808 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 809 return; | |
| 810 } | |
| 811 | |
| 812 return; | |
| 813 } | |
| 814 | |
| 815 /* rc == NGX_OK */ | |
| 816 | |
| 817 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) { | |
| 818 if (ngx_tcp_push(c->fd) == NGX_ERROR) { | |
| 819 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno, | |
| 820 ngx_tcp_push_n " failed"); | |
| 821 ngx_http_upstream_finalize_request(r, u, | |
| 822 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 577 | 823 return; |
| 479 | 824 } |
| 825 | |
| 826 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET; | |
| 827 } | |
| 577 | 828 |
| 479 | 829 ngx_add_timer(c->read, u->conf->read_timeout); |
| 830 | |
| 831 #if 1 | |
| 832 if (c->read->ready) { | |
| 577 | 833 |
| 479 | 834 /* post aio operation */ |
| 835 | |
| 836 /* | |
| 837 * TODO comment | |
| 838 * although we can post aio operation just in the end | |
| 839 * of ngx_http_upstream_connect() CHECK IT !!! | |
| 840 * it's better to do here because we postpone header buffer allocation | |
| 841 */ | |
| 842 | |
| 843 ngx_http_upstream_process_header(c->read); | |
| 844 return; | |
| 845 } | |
| 846 #endif | |
| 847 | |
| 509 | 848 c->write->handler = ngx_http_upstream_dummy_handler; |
| 479 | 849 |
| 509 | 850 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) { |
| 479 | 851 ngx_http_upstream_finalize_request(r, u, |
| 852 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 853 return; | |
| 854 } | |
| 855 } | |
| 856 | |
| 857 | |
| 487 | 858 static void |
| 859 ngx_http_upstream_send_request_handler(ngx_event_t *wev) | |
| 479 | 860 { |
| 861 ngx_connection_t *c; | |
| 862 ngx_http_request_t *r; | |
| 863 ngx_http_upstream_t *u; | |
| 864 | |
| 865 c = wev->data; | |
| 866 r = c->data; | |
| 867 u = r->upstream; | |
| 868 | |
| 869 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
| 870 "http upstream send request handler"); | |
| 871 | |
| 872 if (wev->timedout) { | |
| 873 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
| 874 return; | |
| 875 } | |
| 876 | |
| 591 | 877 #if (NGX_HTTP_SSL) |
| 878 | |
| 879 if (u->conf->ssl && c->ssl == NULL) { | |
| 880 ngx_http_upstream_ssl_init_connection(r, u, c); | |
| 881 return; | |
| 882 } | |
| 883 | |
| 884 #endif | |
| 885 | |
| 651 | 886 if (u->header_sent) { |
| 887 wev->handler = ngx_http_upstream_dummy_handler; | |
| 888 | |
| 889 (void) ngx_handle_write_event(wev, 0); | |
| 890 | |
| 891 return; | |
| 892 } | |
| 893 | |
| 479 | 894 ngx_http_upstream_send_request(r, u); |
| 895 } | |
| 896 | |
| 897 | |
| 487 | 898 static void |
| 899 ngx_http_upstream_process_header(ngx_event_t *rev) | |
| 479 | 900 { |
| 515 | 901 ssize_t n; |
| 902 ngx_int_t rc; | |
| 573 | 903 ngx_str_t *uri, args; |
| 649 | 904 ngx_uint_t i, flags; |
| 515 | 905 ngx_list_part_t *part; |
| 906 ngx_table_elt_t *h; | |
| 907 ngx_connection_t *c; | |
| 908 ngx_http_request_t *r; | |
| 909 ngx_http_upstream_t *u; | |
| 910 ngx_http_err_page_t *err_page; | |
| 911 ngx_http_core_loc_conf_t *clcf; | |
| 912 ngx_http_upstream_header_t *hh; | |
| 913 ngx_http_upstream_main_conf_t *umcf; | |
| 479 | 914 |
| 915 c = rev->data; | |
| 916 r = c->data; | |
| 917 u = r->upstream; | |
| 918 | |
| 919 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, | |
| 483 | 920 "http upstream process header"); |
| 479 | 921 |
| 483 | 922 c->log->action = "reading response header from upstream"; |
| 479 | 923 |
| 924 if (rev->timedout) { | |
| 925 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
| 926 return; | |
| 927 } | |
| 577 | 928 |
|
1153
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parents:
1143
diff
changeset
|
929 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) { |
| 1166 | 930 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
|
1153
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parents:
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diff
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|
931 return; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
932 } |
|
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separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
933 |
| 581 | 934 if (u->buffer.start == NULL) { |
| 935 u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size); | |
| 936 if (u->buffer.start == NULL) { | |
| 479 | 937 ngx_http_upstream_finalize_request(r, u, |
| 938 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 939 return; | |
| 940 } | |
| 941 | |
| 581 | 942 u->buffer.pos = u->buffer.start; |
| 943 u->buffer.last = u->buffer.start; | |
| 944 u->buffer.end = u->buffer.start + u->conf->buffer_size; | |
| 945 u->buffer.temporary = 1; | |
| 946 | |
| 947 u->buffer.tag = u->output.tag; | |
| 479 | 948 |
| 509 | 949 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, |
| 581 | 950 sizeof(ngx_table_elt_t)) |
| 951 != NGX_OK) | |
| 509 | 952 { |
| 953 ngx_http_upstream_finalize_request(r, u, | |
| 954 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 955 return; | |
| 956 } | |
| 957 | |
| 479 | 958 #if 0 |
| 959 if (u->cache) { | |
| 581 | 960 u->buffer.pos += u->cache->ctx.header_size; |
| 961 u->buffer.last = u->buffer.pos; | |
| 479 | 962 } |
| 963 #endif | |
| 964 } | |
| 965 | |
| 581 | 966 n = u->peer.connection->recv(u->peer.connection, u->buffer.last, |
| 884 | 967 u->buffer.end - u->buffer.last); |
| 479 | 968 |
| 969 if (n == NGX_AGAIN) { | |
| 970 #if 0 | |
| 971 ngx_add_timer(rev, u->read_timeout); | |
| 972 #endif | |
| 973 | |
| 974 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 975 ngx_http_upstream_finalize_request(r, u, | |
| 976 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 977 return; | |
| 978 } | |
| 979 | |
| 980 return; | |
| 981 } | |
| 982 | |
| 983 if (n == 0) { | |
| 984 ngx_log_error(NGX_LOG_ERR, rev->log, 0, | |
| 985 "upstream prematurely closed connection"); | |
| 986 } | |
| 987 | |
| 988 if (n == NGX_ERROR || n == 0) { | |
| 989 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 990 return; | |
| 991 } | |
| 992 | |
| 581 | 993 u->buffer.last += n; |
| 479 | 994 |
| 995 #if 0 | |
| 996 u->valid_header_in = 0; | |
| 997 | |
| 998 u->peer.cached = 0; | |
| 999 #endif | |
| 1000 | |
| 1001 rc = u->process_header(r); | |
| 1002 | |
| 1003 if (rc == NGX_AGAIN) { | |
| 1004 #if 0 | |
| 1005 ngx_add_timer(rev, u->read_timeout); | |
| 1006 #endif | |
| 1007 | |
| 581 | 1008 if (u->buffer.pos == u->buffer.end) { |
| 479 | 1009 ngx_log_error(NGX_LOG_ERR, rev->log, 0, |
| 1010 "upstream sent too big header"); | |
| 1011 | |
| 1012 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
| 1013 return; | |
| 1014 } | |
| 1015 | |
| 1016 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 1017 ngx_http_upstream_finalize_request(r, u, | |
| 1018 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1019 return; | |
| 1020 } | |
| 1021 | |
| 1022 return; | |
| 1023 } | |
| 1024 | |
| 1025 if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) { | |
| 1026 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
| 1027 return; | |
| 1028 } | |
| 1029 | |
| 1030 if (rc == NGX_ERROR || rc == NGX_HTTP_INTERNAL_SERVER_ERROR) { | |
| 1031 ngx_http_upstream_finalize_request(r, u, | |
| 1032 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1033 return; | |
| 1034 } | |
| 1035 | |
| 1036 /* rc == NGX_OK */ | |
| 1037 | |
|
777
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|
1038 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
|
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|
1039 && r->subrequest_in_memory) |
|
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diff
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|
1040 { |
|
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|
1041 u->buffer.last = u->buffer.pos; |
|
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|
1042 } |
|
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|
1043 |
| 529 | 1044 if (u->headers_in.status_n == NGX_HTTP_INTERNAL_SERVER_ERROR) { |
| 509 | 1045 |
| 1046 if (u->peer.tries > 1 | |
| 1047 && (u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
| 1048 { | |
| 1049 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_500); | |
| 1050 return; | |
| 1051 } | |
| 1052 | |
| 1053 #if (NGX_HTTP_CACHE) | |
| 1054 | |
| 1055 if (u->peer.tries == 0 | |
| 1056 && u->stale | |
| 1057 && (u->conf->use_stale & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
| 1058 { | |
| 1059 ngx_http_upstream_finalize_request(r, u, | |
| 529 | 1060 ngx_http_send_cached_response(r)); |
| 509 | 1061 return; |
| 1062 } | |
| 1063 | |
| 1064 #endif | |
| 1065 } | |
| 1066 | |
| 597 | 1067 if (u->headers_in.status_n == NGX_HTTP_NOT_FOUND) { |
| 1068 | |
| 1069 if (u->peer.tries > 1 | |
| 1070 && u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_404) | |
| 1071 { | |
| 1072 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_404); | |
| 1073 return; | |
| 1074 } | |
| 1075 | |
| 675 | 1076 if (u->conf->intercept_404) { |
| 1077 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_NOT_FOUND); | |
| 597 | 1078 return; |
| 1079 } | |
| 509 | 1080 } |
| 1081 | |
| 1082 | |
| 529 | 1083 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
| 675 | 1084 && u->conf->intercept_errors) |
| 487 | 1085 { |
| 1086 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 1087 | |
| 1088 if (clcf->error_pages) { | |
| 1089 | |
| 1090 err_page = clcf->error_pages->elts; | |
| 1091 for (i = 0; i < clcf->error_pages->nelts; i++) { | |
| 529 | 1092 if (err_page[i].status == (ngx_int_t) u->headers_in.status_n) { |
| 1093 | |
| 1094 if (u->headers_in.status_n == NGX_HTTP_UNAUTHORIZED) { | |
| 1095 | |
| 1096 r->headers_out.www_authenticate = | |
| 1097 ngx_list_push(&r->headers_out.headers); | |
| 1098 | |
| 1099 if (r->headers_out.www_authenticate == NULL) { | |
| 1100 ngx_http_upstream_finalize_request(r, u, | |
| 1101 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1102 return; | |
| 1103 } | |
| 1104 | |
| 577 | 1105 *r->headers_out.www_authenticate = |
| 529 | 1106 *u->headers_in.www_authenticate; |
| 1107 } | |
| 1108 | |
| 487 | 1109 ngx_http_upstream_finalize_request(r, u, |
| 529 | 1110 u->headers_in.status_n); |
| 487 | 1111 return; |
| 1112 } | |
| 1113 } | |
| 1114 } | |
| 1115 } | |
| 1116 | |
| 681 | 1117 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); |
| 1118 | |
| 515 | 1119 if (r->upstream->headers_in.x_accel_redirect) { |
|
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Igor Sysoev <igor@sysoev.ru>
parents:
756
diff
changeset
|
1120 |
| 515 | 1121 ngx_http_upstream_finalize_request(r, u, NGX_DECLINED); |
| 1122 | |
| 1123 part = &r->upstream->headers_in.headers.part; | |
| 1124 h = part->elts; | |
| 1125 | |
| 1126 for (i = 0; /* void */; i++) { | |
| 1127 | |
| 1128 if (i >= part->nelts) { | |
| 1129 if (part->next == NULL) { | |
| 1130 break; | |
| 1131 } | |
| 577 | 1132 |
| 515 | 1133 part = part->next; |
| 1134 h = part->elts; | |
| 1135 i = 0; | |
| 1136 } | |
| 1137 | |
| 649 | 1138 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, |
| 1139 h[i].lowcase_key, h[i].key.len); | |
| 1140 | |
| 1141 if (hh && hh->redirect) { | |
| 1142 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
|
787
b310630d129e
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parents:
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changeset
|
1143 ngx_http_finalize_request(r, |
|
757
a138c4e6031f
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parents:
756
diff
changeset
|
1144 NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 515 | 1145 return; |
| 1146 } | |
| 1147 } | |
| 1148 } | |
| 1149 | |
| 573 | 1150 uri = &r->upstream->headers_in.x_accel_redirect->value; |
| 1151 args.len = 0; | |
| 1152 args.data = NULL; | |
| 1153 flags = 0; | |
| 1154 | |
| 1155 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) { | |
|
757
a138c4e6031f
not do ngx_http_upstream_finalize_request() twice
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parents:
756
diff
changeset
|
1156 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND); |
| 573 | 1157 return; |
| 1158 } | |
| 1159 | |
| 1160 if (flags & NGX_HTTP_ZERO_IN_URI) { | |
| 1161 r->zero_in_uri = 1; | |
| 1162 } | |
| 1163 | |
| 653 | 1164 if (r->method != NGX_HTTP_HEAD) { |
| 1165 r->method = NGX_HTTP_GET; | |
| 1166 } | |
| 1167 | |
| 573 | 1168 ngx_http_internal_redirect(r, uri, &args); |
| 515 | 1169 return; |
| 1170 } | |
| 1171 | |
| 509 | 1172 part = &r->upstream->headers_in.headers.part; |
| 1173 h = part->elts; | |
| 1174 | |
| 1175 for (i = 0; /* void */; i++) { | |
| 479 | 1176 |
| 509 | 1177 if (i >= part->nelts) { |
| 1178 if (part->next == NULL) { | |
| 1179 break; | |
| 1180 } | |
| 577 | 1181 |
| 509 | 1182 part = part->next; |
| 1183 h = part->elts; | |
| 1184 i = 0; | |
| 1185 } | |
| 1186 | |
| 649 | 1187 if (ngx_hash_find(&u->conf->hide_headers_hash, h[i].hash, |
| 1188 h[i].lowcase_key, h[i].key.len)) | |
| 509 | 1189 { |
| 649 | 1190 continue; |
| 1191 } | |
| 1192 | |
| 1193 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, | |
| 1194 h[i].lowcase_key, h[i].key.len); | |
| 1195 | |
| 1196 if (hh) { | |
| 1197 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
| 509 | 1198 ngx_http_upstream_finalize_request(r, u, |
| 1199 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1200 return; | |
| 1201 } | |
| 1202 | |
| 1203 continue; | |
| 1204 } | |
| 1205 | |
| 1206 if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) { | |
| 1207 ngx_http_upstream_finalize_request(r, u, | |
| 1208 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1209 return; | |
| 1210 } | |
| 1211 } | |
| 1212 | |
| 649 | 1213 if (r->headers_out.server && r->headers_out.server->value.data == NULL) { |
| 1214 r->headers_out.server->hash = 0; | |
| 1215 } | |
| 1216 | |
| 1217 if (r->headers_out.date && r->headers_out.date->value.data == NULL) { | |
| 1218 r->headers_out.date->hash = 0; | |
| 1219 } | |
| 1220 | |
| 529 | 1221 r->headers_out.status = u->headers_in.status_n; |
| 1222 r->headers_out.status_line = u->headers_in.status_line; | |
| 1223 | |
| 581 | 1224 if (r->headers_out.content_length_n != -1) { |
| 1225 u->length = (size_t) r->headers_out.content_length_n; | |
| 1226 | |
| 1227 } else { | |
| 1228 u->length = NGX_MAX_SIZE_T_VALUE; | |
| 1229 } | |
| 1230 | |
|
777
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diff
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|
1231 if (!r->subrequest_in_memory) { |
|
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|
1232 ngx_http_upstream_send_response(r, u); |
|
4ab852b691f5
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diff
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|
1233 return; |
|
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diff
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|
1234 } |
|
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diff
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|
1235 |
|
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|
1236 /* subrequest content in memory */ |
|
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|
1237 |
|
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diff
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|
1238 if (u->input_filter == NULL) { |
|
4ab852b691f5
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diff
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|
1239 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; |
|
4ab852b691f5
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parents:
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diff
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|
1240 u->input_filter = ngx_http_upstream_non_buffered_filter; |
|
4ab852b691f5
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|
1241 u->input_filter_ctx = r; |
|
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|
1242 } |
|
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|
1243 |
|
4ab852b691f5
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diff
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|
1244 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { |
|
4ab852b691f5
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diff
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|
1245 ngx_http_upstream_finalize_request(r, u, |
|
4ab852b691f5
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|
1246 NGX_HTTP_INTERNAL_SERVER_ERROR); |
|
4ab852b691f5
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diff
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|
1247 return; |
|
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parents:
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diff
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|
1248 } |
|
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|
1249 |
|
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|
1250 if (u->buffer.last - u->buffer.pos >= (ssize_t) u->length) { |
|
4ab852b691f5
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|
1251 if (u->input_filter(u->input_filter_ctx, 0) == NGX_ERROR) { |
|
4ab852b691f5
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diff
changeset
|
1252 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
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diff
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|
1253 return; |
|
4ab852b691f5
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diff
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|
1254 } |
|
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|
1255 |
|
4ab852b691f5
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diff
changeset
|
1256 ngx_http_upstream_finalize_request(r, u, 0); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
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diff
changeset
|
1257 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
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|
1258 } |
|
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diff
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|
1259 |
|
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|
1260 rev->handler = ngx_http_upstream_process_body_in_memory; |
|
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|
1261 |
|
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diff
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|
1262 ngx_http_upstream_process_body_in_memory(rev); |
|
4ab852b691f5
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|
1263 } |
|
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diff
changeset
|
1264 |
|
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diff
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|
1265 |
|
1153
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diff
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|
1266 static ngx_int_t |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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diff
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|
1267 ngx_http_upstream_test_connect(ngx_connection_t *c) |
|
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diff
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|
1268 { |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1269 int err; |
|
c843f3df3b85
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Igor Sysoev <igor@sysoev.ru>
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diff
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|
1270 socklen_t len; |
|
c843f3df3b85
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parents:
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diff
changeset
|
1271 |
|
c843f3df3b85
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parents:
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diff
changeset
|
1272 #if (NGX_HAVE_KQUEUE) |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
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diff
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|
1273 |
|
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separate ngx_http_upstream_test_connect() and
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parents:
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diff
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|
1274 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
| 1166 | 1275 if (c->write->pending_eof) { |
| 1276 (void) ngx_connection_error(c, c->write->kq_errno, | |
| 1277 "kevent() reported that connect() failed"); | |
| 1278 return NGX_ERROR; | |
| 1279 } | |
|
1153
c843f3df3b85
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diff
changeset
|
1280 |
|
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diff
changeset
|
1281 } else |
|
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diff
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|
1282 #endif |
|
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diff
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|
1283 { |
| 1166 | 1284 err = 0; |
| 1285 len = sizeof(int); | |
| 1286 | |
| 1287 /* | |
| 1288 * BSDs and Linux return 0 and set a pending error in err | |
| 1289 * Solaris returns -1 and sets errno | |
| 1290 */ | |
| 1291 | |
| 1292 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len) | |
| 1293 == -1) | |
| 1294 { | |
| 1295 err = ngx_errno; | |
| 1296 } | |
| 1297 | |
| 1298 if (err) { | |
| 1299 (void) ngx_connection_error(c, err, "connect() failed"); | |
| 1300 return NGX_ERROR; | |
| 1301 } | |
|
1153
c843f3df3b85
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diff
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|
1302 } |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1303 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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diff
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|
1304 return NGX_OK; |
|
c843f3df3b85
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parents:
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diff
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|
1305 } |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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diff
changeset
|
1306 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
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|
1307 |
|
777
4ab852b691f5
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|
1308 static void |
|
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diff
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|
1309 ngx_http_upstream_process_body_in_memory(ngx_event_t *rev) |
|
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parents:
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diff
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|
1310 { |
|
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|
1311 size_t size; |
|
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diff
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|
1312 ssize_t n; |
|
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|
1313 ngx_buf_t *b; |
|
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|
1314 ngx_connection_t *c; |
|
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diff
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|
1315 ngx_http_request_t *r; |
|
4ab852b691f5
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|
1316 ngx_http_upstream_t *u; |
|
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|
1317 |
|
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|
1318 c = rev->data; |
|
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|
1319 r = c->data; |
|
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diff
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|
1320 u = r->upstream; |
|
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|
1321 |
|
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|
1322 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
|
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diff
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|
1323 "http upstream process body on memory"); |
|
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|
1324 |
|
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diff
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|
1325 if (rev->timedout) { |
|
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diff
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|
1326 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
|
4ab852b691f5
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diff
changeset
|
1327 ngx_http_upstream_finalize_request(r, u, NGX_ETIMEDOUT); |
|
4ab852b691f5
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diff
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|
1328 return; |
|
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diff
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|
1329 } |
|
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diff
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|
1330 |
|
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diff
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|
1331 b = &u->buffer; |
|
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diff
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|
1332 |
|
4ab852b691f5
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diff
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|
1333 for ( ;; ) { |
|
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|
1334 |
|
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|
1335 size = b->end - b->last; |
|
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|
1336 |
|
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|
1337 if (size == 0) { |
|
4ab852b691f5
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diff
changeset
|
1338 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
|
4ab852b691f5
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diff
changeset
|
1339 "upstream buffer is too small to read repsonse"); |
|
4ab852b691f5
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diff
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|
1340 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
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diff
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|
1341 return; |
|
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diff
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|
1342 } |
|
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diff
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|
1343 |
|
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diff
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|
1344 n = c->recv(c, b->last, size); |
|
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diff
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|
1345 |
|
4ab852b691f5
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diff
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|
1346 if (n == NGX_AGAIN) { |
|
4ab852b691f5
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diff
changeset
|
1347 break; |
|
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diff
changeset
|
1348 } |
|
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diff
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|
1349 |
|
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diff
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|
1350 if (n == 0 || n == NGX_ERROR) { |
|
4ab852b691f5
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diff
changeset
|
1351 ngx_http_upstream_finalize_request(r, u, n); |
|
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|
1352 return; |
|
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diff
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|
1353 } |
|
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|
1354 |
|
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|
1355 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { |
|
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diff
changeset
|
1356 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
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|
1357 return; |
|
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diff
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|
1358 } |
|
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diff
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|
1359 |
|
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|
1360 if (!rev->ready) { |
|
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diff
changeset
|
1361 break; |
|
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diff
changeset
|
1362 } |
|
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|
1363 } |
|
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|
1364 |
|
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|
1365 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { |
|
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|
1366 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
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|
1367 return; |
|
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|
1368 } |
|
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|
1369 |
|
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|
1370 if (rev->active) { |
|
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|
1371 ngx_add_timer(rev, u->conf->read_timeout); |
|
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|
1372 |
|
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|
1373 } else if (rev->timer_set) { |
|
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|
1374 ngx_del_timer(rev); |
|
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|
1375 } |
| 681 | 1376 } |
| 1377 | |
| 1378 | |
| 1379 static void | |
| 1380 ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 1381 { | |
| 1382 int tcp_nodelay; | |
| 1383 ssize_t size; | |
| 1384 ngx_int_t rc; | |
| 1385 ngx_event_pipe_t *p; | |
| 1386 ngx_connection_t *c; | |
| 1387 ngx_pool_cleanup_t *cl; | |
| 1388 ngx_pool_cleanup_file_t *clf; | |
| 1389 ngx_http_core_loc_conf_t *clcf; | |
| 1390 | |
| 509 | 1391 rc = ngx_http_send_header(r); |
| 479 | 1392 |
|
1031
bf1785dfb75f
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|
1393 if (rc == NGX_ERROR || rc > NGX_OK || r->post_action || r->header_only) { |
| 485 | 1394 ngx_http_upstream_finalize_request(r, u, rc); |
| 479 | 1395 return; |
| 1396 } | |
| 1397 | |
| 1398 u->header_sent = 1; | |
| 1399 | |
| 573 | 1400 if (r->request_body && r->request_body->temp_file) { |
| 563 | 1401 for (cl = r->pool->cleanup; cl; cl = cl->next) { |
| 1402 if (cl->handler == ngx_pool_cleanup_file) { | |
| 1403 clf = cl->data; | |
| 1404 | |
| 1405 if (clf->fd == r->request_body->temp_file->file.fd) { | |
| 1406 cl->handler(clf); | |
| 1407 cl->handler = NULL; | |
| 659 | 1408 r->request_body->temp_file->file.fd = NGX_INVALID_FILE; |
| 563 | 1409 break; |
| 1410 } | |
| 1411 } | |
| 1412 } | |
| 1413 } | |
| 1414 | |
| 583 | 1415 c = r->connection; |
| 1416 | |
| 581 | 1417 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
| 1418 | |
| 649 | 1419 if (!u->buffering) { |
| 581 | 1420 |
| 1421 if (u->input_filter == NULL) { | |
| 1422 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; | |
| 1423 u->input_filter = ngx_http_upstream_non_buffered_filter; | |
| 1424 u->input_filter_ctx = r; | |
| 1425 } | |
| 1426 | |
| 1427 u->peer.connection->read->handler = | |
| 1428 ngx_http_upstream_process_non_buffered_body; | |
| 1429 r->write_event_handler = | |
| 1430 ngx_http_upstream_process_non_buffered_downstream; | |
| 1431 | |
| 1432 r->limit_rate = 0; | |
| 1433 | |
| 1434 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { | |
| 1435 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1436 return; | |
| 1437 } | |
| 1438 | |
| 583 | 1439 if (clcf->tcp_nodelay && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) { |
| 1440 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay"); | |
| 1441 | |
| 1442 tcp_nodelay = 1; | |
| 1443 | |
| 1444 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY, | |
| 1445 (const void *) &tcp_nodelay, sizeof(int)) == -1) | |
| 1446 { | |
| 1447 ngx_connection_error(c, ngx_socket_errno, | |
| 1448 "setsockopt(TCP_NODELAY) failed"); | |
| 1449 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1450 return; | |
| 1451 } | |
| 1452 | |
| 1453 c->tcp_nodelay = NGX_TCP_NODELAY_SET; | |
| 1454 } | |
| 1455 | |
| 581 | 1456 size = u->buffer.last - u->buffer.pos; |
| 1457 | |
| 1458 if (size) { | |
| 1459 u->buffer.last = u->buffer.pos; | |
| 1460 | |
| 1461 if (u->input_filter(u->input_filter_ctx, size) == NGX_ERROR) { | |
| 1462 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1463 return; | |
| 1464 } | |
| 1465 | |
| 583 | 1466 ngx_http_upstream_process_non_buffered_body(c->write); |
| 581 | 1467 |
| 1468 } else { | |
| 1469 u->buffer.pos = u->buffer.start; | |
| 1470 u->buffer.last = u->buffer.start; | |
| 1471 | |
| 1472 if (ngx_http_send_special(r, NGX_HTTP_FLUSH) == NGX_ERROR) { | |
| 1473 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1474 return; | |
| 1475 } | |
| 1476 } | |
| 1477 | |
| 1478 return; | |
| 1479 } | |
| 1480 | |
| 479 | 1481 /* TODO: preallocate event_pipe bufs, look "Content-Length" */ |
| 1482 | |
| 1483 #if 0 | |
| 1484 | |
| 1485 if (u->cache && u->cache->ctx.file.fd != NGX_INVALID_FILE) { | |
| 1486 if (ngx_close_file(u->cache->ctx.file.fd) == NGX_FILE_ERROR) { | |
| 583 | 1487 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
| 479 | 1488 ngx_close_file_n " \"%s\" failed", |
| 1489 u->cache->ctx.file.name.data); | |
| 1490 } | |
| 1491 } | |
| 1492 | |
| 1493 if (u->cachable) { | |
| 581 | 1494 header = (ngx_http_cache_header_t *) u->buffer->start; |
| 479 | 1495 |
| 1496 header->expires = u->cache->ctx.expires; | |
| 1497 header->last_modified = u->cache->ctx.last_modified; | |
| 1498 header->date = u->cache->ctx.date; | |
| 1499 header->length = r->headers_out.content_length_n; | |
| 1500 u->cache->ctx.length = r->headers_out.content_length_n; | |
| 1501 | |
| 1502 header->key_len = u->cache->ctx.key0.len; | |
| 1503 ngx_memcpy(&header->key, u->cache->ctx.key0.data, header->key_len); | |
| 1504 header->key[header->key_len] = LF; | |
| 1505 } | |
| 1506 | |
| 1507 #endif | |
| 1508 | |
| 581 | 1509 p = u->pipe; |
| 479 | 1510 |
| 1511 p->output_filter = (ngx_event_pipe_output_filter_pt) ngx_http_output_filter; | |
| 1512 p->output_ctx = r; | |
| 1513 p->tag = u->output.tag; | |
| 577 | 1514 p->bufs = u->conf->bufs; |
| 479 | 1515 p->busy_size = u->conf->busy_buffers_size; |
| 1516 p->upstream = u->peer.connection; | |
| 583 | 1517 p->downstream = c; |
| 479 | 1518 p->pool = r->pool; |
| 583 | 1519 p->log = c->log; |
| 577 | 1520 |
| 479 | 1521 p->cachable = u->cachable; |
| 1522 | |
| 501 | 1523 p->temp_file = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t)); |
| 1524 if (p->temp_file == NULL) { | |
| 479 | 1525 ngx_http_upstream_finalize_request(r, u, 0); |
| 1526 return; | |
| 1527 } | |
| 1528 | |
| 1529 p->temp_file->file.fd = NGX_INVALID_FILE; | |
| 583 | 1530 p->temp_file->file.log = c->log; |
| 479 | 1531 p->temp_file->path = u->conf->temp_path; |
| 1532 p->temp_file->pool = r->pool; | |
| 577 | 1533 |
| 479 | 1534 if (u->cachable) { |
| 1535 p->temp_file->persistent = 1; | |
| 1536 } else { | |
| 667 | 1537 p->temp_file->log_level = NGX_LOG_WARN; |
| 479 | 1538 p->temp_file->warn = "an upstream response is buffered " |
| 1539 "to a temporary file"; | |
| 1540 } | |
| 1541 | |
| 1542 p->max_temp_file_size = u->conf->max_temp_file_size; | |
| 1543 p->temp_file_write_size = u->conf->temp_file_write_size; | |
| 1544 | |
| 501 | 1545 p->preread_bufs = ngx_alloc_chain_link(r->pool); |
| 1546 if (p->preread_bufs == NULL) { | |
| 479 | 1547 ngx_http_upstream_finalize_request(r, u, 0); |
| 1548 return; | |
| 1549 } | |
| 581 | 1550 p->preread_bufs->buf = &u->buffer; |
| 479 | 1551 p->preread_bufs->next = NULL; |
| 581 | 1552 u->buffer.recycled = 1; |
| 1553 | |
| 1554 p->preread_size = u->buffer.last - u->buffer.pos; | |
| 479 | 1555 |
| 1556 if (u->cachable) { | |
| 1557 p->buf_to_file = ngx_calloc_buf(r->pool); | |
| 1558 if (p->buf_to_file == NULL) { | |
| 1559 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1560 return; | |
| 1561 } | |
| 581 | 1562 p->buf_to_file->pos = u->buffer.start; |
| 1563 p->buf_to_file->last = u->buffer.pos; | |
| 479 | 1564 p->buf_to_file->temporary = 1; |
| 1565 } | |
| 1566 | |
| 1567 if (ngx_event_flags & NGX_USE_AIO_EVENT) { | |
| 1568 /* the posted aio operation may currupt a shadow buffer */ | |
| 1569 p->single_buf = 1; | |
| 1570 } | |
| 1571 | |
| 1572 /* TODO: p->free_bufs = 0 if use ngx_create_chain_of_bufs() */ | |
| 1573 p->free_bufs = 1; | |
| 1574 | |
| 1575 /* | |
| 581 | 1576 * event_pipe would do u->buffer.last += p->preread_size |
| 479 | 1577 * as though these bytes were read |
| 1578 */ | |
| 581 | 1579 u->buffer.last = u->buffer.pos; |
| 479 | 1580 |
| 1581 if (u->conf->cyclic_temp_file) { | |
| 1582 | |
| 1583 /* | |
| 1584 * we need to disable the use of sendfile() if we use cyclic temp file | |
| 1585 * because the writing a new data may interfere with sendfile() | |
| 1586 * that uses the same kernel file pages (at least on FreeBSD) | |
| 1587 */ | |
| 1588 | |
| 1589 p->cyclic_temp_file = 1; | |
| 583 | 1590 c->sendfile = 0; |
| 479 | 1591 |
| 1592 } else { | |
| 1593 p->cyclic_temp_file = 0; | |
| 1594 } | |
| 1595 | |
| 1596 p->read_timeout = u->conf->read_timeout; | |
| 1597 p->send_timeout = clcf->send_timeout; | |
| 1598 p->send_lowat = clcf->send_lowat; | |
| 1599 | |
| 509 | 1600 u->peer.connection->read->handler = ngx_http_upstream_process_body; |
| 1601 r->write_event_handler = ngx_http_upstream_process_downstream; | |
| 479 | 1602 |
| 1603 ngx_http_upstream_process_body(u->peer.connection->read); | |
| 1604 } | |
| 1605 | |
| 1606 | |
| 487 | 1607 static void |
| 581 | 1608 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r) |
| 1609 { | |
| 1610 ngx_http_upstream_process_non_buffered_body(r->connection->write); | |
| 1611 } | |
| 1612 | |
| 1613 | |
| 1614 static void | |
| 1615 ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev) | |
| 1616 { | |
| 1617 size_t size; | |
| 1618 ssize_t n; | |
| 1619 ngx_buf_t *b; | |
| 583 | 1620 ngx_int_t rc; |
| 581 | 1621 ngx_uint_t do_write; |
| 884 | 1622 ngx_connection_t *c, *downstream, *upstream; |
| 581 | 1623 ngx_http_request_t *r; |
| 1624 ngx_http_upstream_t *u; | |
| 1625 ngx_http_core_loc_conf_t *clcf; | |
| 1626 | |
| 1627 c = ev->data; | |
|
756
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fix building introduced by previous commit
Igor Sysoev <igor@sysoev.ru>
parents:
755
diff
changeset
|
1628 r = c->data; |
|
d904b5cb3bba
fix building introduced by previous commit
Igor Sysoev <igor@sysoev.ru>
parents:
755
diff
changeset
|
1629 u = r->upstream; |
| 581 | 1630 |
| 1631 if (ev->write) { | |
| 1632 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1633 "http upstream process non buffered downstream"); | |
| 1634 c->log->action = "sending to client"; | |
| 1635 | |
| 1636 } else { | |
| 1637 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1638 "http upstream process non buffered upstream"); | |
| 1639 c->log->action = "reading upstream"; | |
| 1640 } | |
| 1641 | |
| 1642 if (ev->timedout) { | |
| 1643 if (ev->write) { | |
| 1644 c->timedout = 1; | |
| 611 | 1645 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
| 1646 | |
| 581 | 1647 } else { |
| 611 | 1648 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
| 581 | 1649 } |
|
755
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finalize nonbuffered request on timeout
Igor Sysoev <igor@sysoev.ru>
parents:
751
diff
changeset
|
1650 |
|
63b9dc652c3d
finalize nonbuffered request on timeout
Igor Sysoev <igor@sysoev.ru>
parents:
751
diff
changeset
|
1651 ngx_http_upstream_finalize_request(r, u, 0); |
|
63b9dc652c3d
finalize nonbuffered request on timeout
Igor Sysoev <igor@sysoev.ru>
parents:
751
diff
changeset
|
1652 return; |
| 581 | 1653 } |
| 1654 | |
| 884 | 1655 downstream = r->connection; |
| 1656 upstream = u->peer.connection; | |
| 581 | 1657 |
| 1658 b = &u->buffer; | |
| 1659 | |
| 1660 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 1661 | |
| 657 | 1662 do_write = ev->write || u->length == 0; |
| 581 | 1663 |
| 1664 for ( ;; ) { | |
| 1665 | |
| 1666 if (do_write) { | |
| 1667 | |
| 1668 if (u->out_bufs || u->busy_bufs) { | |
| 583 | 1669 rc = ngx_http_output_filter(r, u->out_bufs); |
| 1670 | |
| 884 | 1671 if (downstream->destroyed) { |
| 583 | 1672 return; |
| 1673 } | |
| 1674 | |
| 1675 if (rc == NGX_ERROR) { | |
| 581 | 1676 ngx_http_upstream_finalize_request(r, u, 0); |
| 1677 return; | |
| 1678 } | |
| 1679 | |
| 1680 ngx_chain_update_chains(&u->free_bufs, &u->busy_bufs, | |
| 1681 &u->out_bufs, u->output.tag); | |
| 1682 } | |
| 1683 | |
| 1684 if (u->busy_bufs == NULL) { | |
| 1685 | |
| 1686 if (u->length == 0 | |
| 884 | 1687 || upstream->read->eof |
| 1688 || upstream->read->error) | |
| 581 | 1689 { |
| 1690 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1691 return; | |
| 1692 } | |
| 1693 | |
| 1694 b->pos = b->start; | |
| 1695 b->last = b->start; | |
| 1696 } | |
| 1697 } | |
| 1698 | |
| 1699 size = b->end - b->last; | |
| 1700 | |
| 1701 if (size > u->length) { | |
| 1702 size = u->length; | |
| 1703 } | |
| 1704 | |
| 884 | 1705 if (size && upstream->read->ready) { |
| 1706 | |
| 1707 n = upstream->recv(upstream, b->last, size); | |
| 581 | 1708 |
| 1709 if (n == NGX_AGAIN) { | |
| 1710 break; | |
| 1711 } | |
| 1712 | |
| 1713 if (n > 0) { | |
| 1714 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { | |
| 1715 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1716 return; | |
| 1717 } | |
| 1718 } | |
| 1719 | |
| 1720 do_write = 1; | |
| 1721 | |
| 1722 continue; | |
| 1723 } | |
| 1724 | |
| 1725 break; | |
| 1726 } | |
| 1727 | |
| 884 | 1728 if (downstream->data == r) { |
| 1729 if (ngx_handle_write_event(downstream->write, clcf->send_lowat) | |
| 583 | 1730 == NGX_ERROR) |
| 1731 { | |
| 1732 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1733 return; | |
| 1734 } | |
| 581 | 1735 } |
| 1736 | |
|
1063
e2a6ecc5a3ae
a non-active client connection must not closed after send timeout
Igor Sysoev <igor@sysoev.ru>
parents:
1031
diff
changeset
|
1737 if (downstream->write->active && !downstream->write->ready) { |
| 884 | 1738 ngx_add_timer(downstream->write, clcf->send_timeout); |
| 1739 | |
| 1740 } else if (downstream->write->timer_set) { | |
| 1741 ngx_del_timer(downstream->write); | |
| 581 | 1742 } |
| 1743 | |
| 884 | 1744 if (ngx_handle_read_event(upstream->read, 0) == NGX_ERROR) { |
| 581 | 1745 ngx_http_upstream_finalize_request(r, u, 0); |
| 1746 return; | |
| 1747 } | |
| 1748 | |
|
1063
e2a6ecc5a3ae
a non-active client connection must not closed after send timeout
Igor Sysoev <igor@sysoev.ru>
parents:
1031
diff
changeset
|
1749 if (upstream->read->active && !upstream->read->ready) { |
| 884 | 1750 ngx_add_timer(upstream->read, u->conf->read_timeout); |
| 1751 | |
| 1752 } else if (upstream->read->timer_set) { | |
| 1753 ngx_del_timer(upstream->read); | |
| 581 | 1754 } |
| 1755 } | |
| 1756 | |
| 1757 | |
| 1758 static ngx_int_t | |
| 1759 ngx_http_upstream_non_buffered_filter_init(void *data) | |
| 1760 { | |
| 1761 return NGX_OK; | |
| 1762 } | |
| 1763 | |
| 1764 | |
| 1765 static ngx_int_t | |
| 1766 ngx_http_upstream_non_buffered_filter(void *data, ssize_t bytes) | |
| 1767 { | |
| 1768 ngx_http_request_t *r = data; | |
| 1769 | |
| 1770 ngx_buf_t *b; | |
| 1771 ngx_chain_t *cl, **ll; | |
| 1772 ngx_http_upstream_t *u; | |
| 1773 | |
| 1774 u = r->upstream; | |
| 1775 | |
| 1776 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
| 1777 ll = &cl->next; | |
| 1778 } | |
| 1779 | |
| 1780 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
| 1781 if (cl == NULL) { | |
| 1782 return NGX_ERROR; | |
| 1783 } | |
| 1784 | |
| 1785 *ll = cl; | |
| 1786 | |
| 1787 cl->buf->flush = 1; | |
| 1788 cl->buf->memory = 1; | |
| 1789 | |
| 1790 b = &u->buffer; | |
| 1791 | |
| 1792 cl->buf->pos = b->last; | |
| 1793 b->last += bytes; | |
| 1794 cl->buf->last = b->last; | |
| 1795 | |
| 1796 if (u->length == NGX_MAX_SIZE_T_VALUE) { | |
| 1797 return NGX_OK; | |
| 1798 } | |
| 1799 | |
| 1800 u->length -= bytes; | |
| 1801 | |
| 1802 return NGX_OK; | |
| 1803 } | |
| 1804 | |
| 1805 | |
| 1806 static void | |
| 509 | 1807 ngx_http_upstream_process_downstream(ngx_http_request_t *r) |
| 1808 { | |
| 1809 ngx_http_upstream_process_body(r->connection->write); | |
| 1810 } | |
| 1811 | |
| 1812 | |
| 1813 static void | |
| 487 | 1814 ngx_http_upstream_process_body(ngx_event_t *ev) |
| 479 | 1815 { |
| 509 | 1816 ngx_event_pipe_t *p; |
| 583 | 1817 ngx_connection_t *c, *downstream; |
| 1098 | 1818 ngx_http_log_ctx_t *ctx; |
| 479 | 1819 ngx_http_request_t *r; |
| 1820 ngx_http_upstream_t *u; | |
| 1821 | |
| 1822 c = ev->data; | |
| 1823 r = c->data; | |
| 1824 u = r->upstream; | |
| 583 | 1825 downstream = r->connection; |
| 479 | 1826 |
| 1827 if (ev->write) { | |
| 483 | 1828 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1829 "http upstream process downstream"); | |
| 1830 c->log->action = "sending to client"; | |
| 577 | 1831 |
| 479 | 1832 } else { |
| 483 | 1833 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1834 "http upstream process upstream"); | |
| 1835 c->log->action = "reading upstream"; | |
| 1098 | 1836 |
| 1837 ctx = c->log->data; | |
| 1838 ctx->current_request = r; | |
| 479 | 1839 } |
| 577 | 1840 |
| 581 | 1841 p = u->pipe; |
| 479 | 1842 |
| 1843 if (ev->timedout) { | |
| 1844 if (ev->write) { | |
| 527 | 1845 if (ev->delayed) { |
| 1846 | |
| 1847 ev->timedout = 0; | |
| 1848 ev->delayed = 0; | |
| 1849 | |
| 1850 if (!ev->ready) { | |
| 1851 ngx_add_timer(ev, p->send_timeout); | |
| 1852 | |
| 1853 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) | |
| 1854 { | |
| 1855 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1856 return; | |
| 1857 } | |
| 1858 | |
| 1859 return; | |
| 1860 } | |
| 1861 | |
| 1862 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { | |
| 583 | 1863 |
| 1864 if (downstream->destroyed) { | |
| 1865 return; | |
| 1866 } | |
| 1867 | |
| 527 | 1868 ngx_http_upstream_finalize_request(r, u, 0); |
| 1869 return; | |
| 1870 } | |
| 1871 | |
| 1872 } else { | |
| 1873 p->downstream_error = 1; | |
| 577 | 1874 c->timedout = 1; |
| 611 | 1875 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
| 527 | 1876 } |
| 479 | 1877 |
| 1878 } else { | |
| 577 | 1879 p->upstream_error = 1; |
| 611 | 1880 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
| 479 | 1881 } |
| 1882 | |
| 1883 } else { | |
| 527 | 1884 if (ev->write && ev->delayed) { |
| 1885 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1886 "http downstream delayed"); | |
| 1887 | |
| 1888 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) { | |
| 1889 return; | |
| 1890 } | |
| 1891 | |
| 1892 return; | |
| 1893 } | |
| 1894 | |
| 479 | 1895 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { |
| 583 | 1896 |
| 1897 if (downstream->destroyed) { | |
| 1898 return; | |
| 1899 } | |
| 1900 | |
| 479 | 1901 ngx_http_upstream_finalize_request(r, u, 0); |
| 1902 return; | |
| 1903 } | |
| 1904 } | |
| 577 | 1905 |
| 479 | 1906 if (u->peer.connection) { |
| 1907 | |
| 1908 #if (NGX_HTTP_FILE_CACHE) | |
| 1909 | |
| 1910 if (p->upstream_done && u->cachable) { | |
| 1911 if (ngx_http_cache_update(r) == NGX_ERROR) { | |
| 1912 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1913 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1914 return; | |
| 1915 } | |
| 1916 | |
| 1917 } else if (p->upstream_eof && u->cachable) { | |
| 1918 | |
| 1919 /* TODO: check length & update cache */ | |
| 1920 | |
| 1921 if (ngx_http_cache_update(r) == NGX_ERROR) { | |
| 1922 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1923 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1924 return; | |
| 1925 } | |
| 1926 } | |
| 1927 | |
| 1928 #endif | |
| 1929 | |
| 1930 if (p->upstream_done || p->upstream_eof || p->upstream_error) { | |
| 483 | 1931 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1932 "http upstream exit: %p", p->out); | |
| 479 | 1933 #if 0 |
| 1934 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1935 #endif | |
| 1936 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1937 return; | |
| 1938 } | |
| 1939 } | |
| 1940 | |
| 1941 if (p->downstream_error) { | |
| 483 | 1942 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1943 "http upstream downstream error"); | |
| 479 | 1944 |
| 1945 if (!u->cachable && u->peer.connection) { | |
| 1946 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1947 } | |
| 1948 } | |
| 1949 } | |
| 1950 | |
| 1951 | |
| 487 | 1952 static void |
| 1953 ngx_http_upstream_dummy_handler(ngx_event_t *wev) | |
| 479 | 1954 { |
| 1955 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
| 1956 "http upstream dummy handler"); | |
| 1957 } | |
| 1958 | |
| 1959 | |
| 487 | 1960 static void |
| 1961 ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u, | |
| 1962 ngx_uint_t ft_type) | |
| 479 | 1963 { |
| 884 | 1964 ngx_uint_t status, state; |
| 479 | 1965 |
| 1966 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 884 | 1967 "http next upstream, %xi", ft_type); |
| 479 | 1968 |
| 1969 #if 0 | |
| 1970 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1971 #endif | |
| 1972 | |
| 525 | 1973 if (ft_type == NGX_HTTP_UPSTREAM_FT_HTTP_404) { |
| 884 | 1974 state = NGX_PEER_NEXT; |
| 525 | 1975 } else { |
| 884 | 1976 state = NGX_PEER_FAILED; |
| 479 | 1977 } |
| 525 | 1978 |
| 884 | 1979 u->peer.free(&u->peer, u->peer.data, state); |
| 525 | 1980 |
| 479 | 1981 if (ft_type == NGX_HTTP_UPSTREAM_FT_TIMEOUT) { |
| 1982 ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_ETIMEDOUT, | |
| 1983 "upstream timed out"); | |
| 1984 } | |
| 577 | 1985 |
| 479 | 1986 if (u->peer.cached && ft_type == NGX_HTTP_UPSTREAM_FT_ERROR) { |
| 1987 status = 0; | |
| 1988 | |
| 1989 } else { | |
| 1990 switch(ft_type) { | |
| 1991 | |
| 1992 case NGX_HTTP_UPSTREAM_FT_TIMEOUT: | |
| 1993 status = NGX_HTTP_GATEWAY_TIME_OUT; | |
| 1994 break; | |
| 1995 | |
| 1996 case NGX_HTTP_UPSTREAM_FT_HTTP_500: | |
| 1997 status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 1998 break; | |
| 1999 | |
| 2000 case NGX_HTTP_UPSTREAM_FT_HTTP_404: | |
| 2001 status = NGX_HTTP_NOT_FOUND; | |
| 2002 break; | |
| 2003 | |
| 2004 /* | |
| 2005 * NGX_HTTP_UPSTREAM_FT_BUSY_LOCK and NGX_HTTP_UPSTREAM_FT_MAX_WAITING | |
| 2006 * never reach here | |
| 2007 */ | |
| 2008 | |
| 2009 default: | |
| 2010 status = NGX_HTTP_BAD_GATEWAY; | |
| 2011 } | |
| 2012 } | |
| 2013 | |
| 583 | 2014 if (r->connection->error) { |
| 479 | 2015 ngx_http_upstream_finalize_request(r, u, |
| 2016 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 2017 return; | |
| 2018 } | |
| 2019 | |
| 2020 if (status) { | |
| 2021 u->state->status = status; | |
| 2022 | |
| 525 | 2023 if (u->peer.tries == 0 || !(u->conf->next_upstream & ft_type)) { |
| 479 | 2024 |
| 2025 #if (NGX_HTTP_CACHE) | |
| 2026 | |
| 2027 if (u->stale && (u->conf->use_stale & ft_type)) { | |
| 2028 ngx_http_upstream_finalize_request(r, u, | |
| 525 | 2029 ngx_http_send_cached_response(r)); |
| 479 | 2030 return; |
| 2031 } | |
| 2032 | |
| 2033 #endif | |
| 2034 | |
| 2035 ngx_http_upstream_finalize_request(r, u, status); | |
| 2036 return; | |
| 2037 } | |
| 2038 } | |
| 2039 | |
| 2040 if (u->peer.connection) { | |
| 2041 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2042 "close http upstream connection: %d", | |
| 2043 u->peer.connection->fd); | |
| 577 | 2044 #if (NGX_HTTP_SSL) |
| 884 | 2045 |
| 577 | 2046 if (u->peer.connection->ssl) { |
| 884 | 2047 u->peer.connection->ssl->no_wait_shutdown = 1; |
| 2048 u->peer.connection->ssl->no_send_shutdown = 1; | |
| 2049 | |
| 2050 (void) ngx_ssl_shutdown(u->peer.connection); | |
| 577 | 2051 } |
| 2052 #endif | |
| 884 | 2053 |
| 479 | 2054 ngx_close_connection(u->peer.connection); |
| 2055 } | |
| 2056 | |
| 2057 #if 0 | |
| 2058 if (u->conf->busy_lock && !u->busy_locked) { | |
| 2059 ngx_http_upstream_busy_lock(p); | |
| 2060 return; | |
| 2061 } | |
| 2062 #endif | |
| 2063 | |
| 2064 ngx_http_upstream_connect(r, u); | |
| 2065 } | |
| 2066 | |
| 2067 | |
| 487 | 2068 static void |
| 569 | 2069 ngx_http_upstream_cleanup(void *data) |
| 2070 { | |
| 2071 ngx_http_request_t *r = data; | |
| 2072 | |
| 2073 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2074 "cleanup http upstream request: \"%V\"", &r->uri); | |
| 2075 | |
| 2076 ngx_http_upstream_finalize_request(r, r->upstream, NGX_DONE); | |
| 2077 } | |
| 2078 | |
| 2079 | |
| 2080 static void | |
| 487 | 2081 ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
| 2082 ngx_http_upstream_t *u, ngx_int_t rc) | |
| 479 | 2083 { |
|
889
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the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2084 ngx_time_t *tp; |
| 563 | 2085 |
| 483 | 2086 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| 2087 "finalize http upstream request: %i", rc); | |
| 479 | 2088 |
| 569 | 2089 *u->cleanup = NULL; |
| 2090 | |
|
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2091 if (u->state->response_sec) { |
| 563 | 2092 tp = ngx_timeofday(); |
|
889
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the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2093 u->state->response_sec = tp->sec - u->state->response_sec; |
|
a9a7e4b1a72b
the previous fix does not actually fix overflow
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parents:
888
diff
changeset
|
2094 u->state->response_msec = tp->msec - u->state->response_msec; |
| 563 | 2095 } |
| 2096 | |
| 479 | 2097 u->finalize_request(r, rc); |
| 2098 | |
| 884 | 2099 u->peer.free(&u->peer, u->peer.data, 0); |
| 2100 | |
| 479 | 2101 if (u->peer.connection) { |
| 884 | 2102 |
| 577 | 2103 #if (NGX_HTTP_SSL) |
| 2104 | |
| 2105 /* TODO: do not shutdown persistent connection */ | |
| 2106 | |
| 2107 if (u->peer.connection->ssl) { | |
| 884 | 2108 |
| 2109 /* | |
| 2110 * We send the "close notify" shutdown alert to the upstream only | |
| 2111 * and do not wait its "close notify" shutdown alert. | |
| 2112 * It is acceptable according to the TLS standard. | |
| 2113 */ | |
| 2114 | |
| 2115 u->peer.connection->ssl->no_wait_shutdown = 1; | |
| 2116 | |
| 2117 (void) ngx_ssl_shutdown(u->peer.connection); | |
| 577 | 2118 } |
| 2119 #endif | |
| 884 | 2120 |
| 2121 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2122 "close http upstream connection: %d", | |
| 2123 u->peer.connection->fd); | |
| 2124 | |
| 479 | 2125 ngx_close_connection(u->peer.connection); |
| 2126 } | |
| 2127 | |
| 483 | 2128 u->peer.connection = NULL; |
| 2129 | |
| 563 | 2130 if (u->header_sent && (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE)) |
| 479 | 2131 { |
| 2132 rc = 0; | |
| 2133 } | |
| 2134 | |
| 581 | 2135 if (u->pipe && u->pipe->temp_file) { |
| 479 | 2136 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| 2137 "http upstream temp fd: %d", | |
| 581 | 2138 u->pipe->temp_file->file.fd); |
| 479 | 2139 } |
| 2140 | |
| 2141 #if 0 | |
| 2142 if (u->cache) { | |
| 2143 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 483 | 2144 "http upstream cache fd: %d", |
| 479 | 2145 u->cache->ctx.file.fd); |
| 2146 } | |
| 2147 #endif | |
| 2148 | |
| 515 | 2149 if (rc == NGX_DECLINED) { |
| 2150 return; | |
| 2151 } | |
| 2152 | |
| 483 | 2153 r->connection->log->action = "sending to client"; |
| 2154 | |
| 629 | 2155 if (rc == 0 && r == r->main && !r->post_action) { |
| 581 | 2156 rc = ngx_http_send_special(r, NGX_HTTP_LAST); |
| 479 | 2157 } |
| 2158 | |
| 2159 ngx_http_finalize_request(r, rc); | |
| 2160 } | |
| 2161 | |
| 2162 | |
| 509 | 2163 static ngx_int_t |
| 2164 ngx_http_upstream_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2165 ngx_uint_t offset) | |
| 577 | 2166 { |
| 509 | 2167 ngx_table_elt_t **ph; |
| 577 | 2168 |
| 509 | 2169 ph = (ngx_table_elt_t **) ((char *) &r->upstream->headers_in + offset); |
| 2170 | |
| 2171 if (*ph == NULL) { | |
| 2172 *ph = h; | |
| 2173 } | |
| 2174 | |
| 2175 return NGX_OK; | |
| 2176 } | |
| 2177 | |
| 2178 | |
| 2179 static ngx_int_t | |
| 2180 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
| 2181 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2182 { | |
| 2183 ngx_array_t *pa; | |
| 2184 ngx_table_elt_t **ph; | |
| 2185 | |
| 2186 pa = (ngx_array_t *) ((char *) &r->upstream->headers_in + offset); | |
| 2187 | |
| 2188 if (pa->elts == NULL) { | |
| 2189 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
| 2190 { | |
| 2191 return NGX_ERROR; | |
| 2192 } | |
| 2193 } | |
| 2194 | |
| 2195 ph = ngx_array_push(pa); | |
| 2196 if (ph == NULL) { | |
| 2197 return NGX_ERROR; | |
| 2198 } | |
| 2199 | |
| 2200 *ph = h; | |
| 2201 | |
| 2202 return NGX_OK; | |
| 2203 } | |
| 2204 | |
| 2205 | |
| 2206 static ngx_int_t | |
| 2207 ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2208 ngx_uint_t offset) | |
| 2209 { | |
| 2210 return NGX_OK; | |
| 2211 } | |
| 2212 | |
| 2213 | |
| 2214 static ngx_int_t | |
| 527 | 2215 ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2216 ngx_uint_t offset) | |
| 577 | 2217 { |
| 527 | 2218 ngx_int_t n; |
| 2219 | |
| 2220 r->upstream->headers_in.x_accel_limit_rate = h; | |
| 2221 | |
| 2222 n = ngx_atoi(h->value.data, h->value.len); | |
| 2223 | |
| 2224 if (n != NGX_ERROR) { | |
| 2225 r->limit_rate = (size_t) n; | |
| 2226 } | |
| 2227 | |
| 2228 return NGX_OK; | |
| 2229 } | |
| 2230 | |
| 2231 | |
| 2232 static ngx_int_t | |
| 649 | 2233 ngx_http_upstream_process_buffering(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2234 ngx_uint_t offset) | |
| 2235 { | |
| 2236 u_char c0, c1, c2; | |
| 2237 | |
| 2238 if (r->upstream->conf->change_buffering) { | |
| 2239 | |
| 2240 if (h->value.len == 2) { | |
| 2241 c0 = ngx_tolower(h->value.data[0]); | |
| 2242 c1 = ngx_tolower(h->value.data[1]); | |
| 2243 | |
| 2244 if (c0 == 'n' && c1 == 'o') { | |
| 2245 r->upstream->buffering = 0; | |
| 2246 } | |
| 2247 | |
| 2248 } else if (h->value.len == 3) { | |
| 2249 c0 = ngx_tolower(h->value.data[0]); | |
| 2250 c1 = ngx_tolower(h->value.data[1]); | |
| 2251 c2 = ngx_tolower(h->value.data[2]); | |
| 2252 | |
| 2253 if (c0 == 'y' && c1 == 'e' && c2 == 's') { | |
| 2254 r->upstream->buffering = 1; | |
| 2255 } | |
| 2256 } | |
| 2257 } | |
| 2258 | |
| 2259 return NGX_OK; | |
| 2260 } | |
| 2261 | |
| 2262 | |
| 2263 static ngx_int_t | |
| 657 | 2264 ngx_http_upstream_process_charset(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2265 ngx_uint_t offset) | |
| 2266 { | |
| 2267 r->headers_out.override_charset = &h->value; | |
| 2268 | |
| 2269 return NGX_OK; | |
| 2270 } | |
| 2271 | |
| 2272 | |
| 2273 static ngx_int_t | |
| 509 | 2274 ngx_http_upstream_copy_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2275 ngx_uint_t offset) | |
| 2276 { | |
| 573 | 2277 ngx_table_elt_t *ho, **ph; |
| 509 | 2278 |
| 2279 ho = ngx_list_push(&r->headers_out.headers); | |
| 2280 if (ho == NULL) { | |
| 2281 return NGX_ERROR; | |
| 2282 } | |
| 2283 | |
| 2284 *ho = *h; | |
| 2285 | |
| 573 | 2286 if (offset) { |
| 2287 ph = (ngx_table_elt_t **) ((char *) &r->headers_out + offset); | |
| 2288 *ph = ho; | |
| 2289 } | |
| 2290 | |
| 509 | 2291 return NGX_OK; |
| 2292 } | |
| 2293 | |
| 2294 | |
| 2295 static ngx_int_t | |
| 2296 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r, | |
| 2297 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2298 { | |
| 2299 ngx_array_t *pa; | |
| 2300 ngx_table_elt_t *ho, **ph; | |
| 2301 | |
| 2302 pa = (ngx_array_t *) ((char *) &r->headers_out + offset); | |
| 2303 | |
| 2304 if (pa->elts == NULL) { | |
| 2305 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
| 2306 { | |
| 2307 return NGX_ERROR; | |
| 2308 } | |
| 2309 } | |
| 2310 | |
| 2311 ph = ngx_array_push(pa); | |
| 2312 if (ph == NULL) { | |
| 2313 return NGX_ERROR; | |
| 2314 } | |
| 2315 | |
| 2316 ho = ngx_list_push(&r->headers_out.headers); | |
| 2317 if (ho == NULL) { | |
| 2318 return NGX_ERROR; | |
| 2319 } | |
| 2320 | |
| 2321 *ho = *h; | |
| 2322 *ph = ho; | |
| 2323 | |
| 2324 return NGX_OK; | |
| 2325 } | |
| 2326 | |
| 2327 | |
| 2328 static ngx_int_t | |
| 2329 ngx_http_upstream_copy_content_type(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2330 ngx_uint_t offset) | |
| 2331 { | |
| 657 | 2332 u_char *p, *last; |
| 2333 | |
| 2334 r->headers_out.content_type_len = h->value.len; | |
| 509 | 2335 r->headers_out.content_type = h->value; |
| 2336 | |
| 657 | 2337 for (p = h->value.data; *p; p++) { |
| 2338 | |
| 2339 if (*p != ';') { | |
| 2340 continue; | |
| 2341 } | |
| 2342 | |
| 2343 last = p; | |
| 2344 | |
| 2345 while (*++p == ' ') { /* void */ } | |
| 2346 | |
|
1107
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
1098
diff
changeset
|
2347 if (ngx_strncasecmp(p, (u_char *) "charset=", 8) != 0) { |
| 657 | 2348 continue; |
| 2349 } | |
| 2350 | |
| 2351 p += 8; | |
| 2352 | |
| 2353 r->headers_out.content_type_len = last - h->value.data; | |
| 2354 | |
| 2355 r->headers_out.charset.len = h->value.data + h->value.len - p; | |
| 2356 r->headers_out.charset.data = p; | |
|
1143
c6c42497106c
fix segfault if upstream sends trailing ";" in "charset="
Igor Sysoev <igor@sysoev.ru>
parents:
1109
diff
changeset
|
2357 |
|
c6c42497106c
fix segfault if upstream sends trailing ";" in "charset="
Igor Sysoev <igor@sysoev.ru>
parents:
1109
diff
changeset
|
2358 return NGX_OK; |
| 657 | 2359 } |
| 2360 | |
| 509 | 2361 return NGX_OK; |
| 2362 } | |
| 2363 | |
| 2364 | |
| 2365 static ngx_int_t | |
| 2366 ngx_http_upstream_copy_content_length(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2367 ngx_uint_t offset) | |
| 2368 { | |
| 2369 ngx_table_elt_t *ho; | |
| 2370 | |
| 2371 ho = ngx_list_push(&r->headers_out.headers); | |
| 2372 if (ho == NULL) { | |
| 2373 return NGX_ERROR; | |
| 2374 } | |
| 2375 | |
| 2376 *ho = *h; | |
| 2377 | |
| 2378 r->headers_out.content_length = ho; | |
| 2379 r->headers_out.content_length_n = ngx_atoof(h->value.data, h->value.len); | |
| 2380 | |
| 2381 return NGX_OK; | |
| 2382 } | |
| 2383 | |
| 2384 | |
| 2385 static ngx_int_t | |
| 2386 ngx_http_upstream_rewrite_location(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2387 ngx_uint_t offset) | |
| 2388 { | |
| 2389 ngx_int_t rc; | |
| 2390 ngx_table_elt_t *ho; | |
| 2391 | |
| 2392 ho = ngx_list_push(&r->headers_out.headers); | |
| 2393 if (ho == NULL) { | |
| 2394 return NGX_ERROR; | |
| 2395 } | |
| 2396 | |
| 2397 *ho = *h; | |
| 2398 | |
| 2399 if (r->upstream->rewrite_redirect) { | |
| 2400 rc = r->upstream->rewrite_redirect(r, ho, 0); | |
| 2401 | |
| 529 | 2402 if (rc == NGX_DECLINED) { |
| 2403 return NGX_OK; | |
| 2404 } | |
| 2405 | |
| 509 | 2406 if (rc == NGX_OK) { |
| 2407 r->headers_out.location = ho; | |
| 2408 | |
| 2409 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2410 "rewritten location: \"%V\"", &ho->value); | |
| 2411 } | |
| 2412 | |
| 2413 return rc; | |
| 2414 } | |
| 2415 | |
| 2416 /* | |
| 2417 * we do not set r->headers_out.location here to avoid the handling | |
| 2418 * the local redirects without a host name by ngx_http_header_filter() | |
| 2419 */ | |
| 2420 | |
| 2421 return NGX_OK; | |
| 2422 } | |
| 2423 | |
| 2424 | |
| 2425 static ngx_int_t | |
| 2426 ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2427 ngx_uint_t offset) | |
| 2428 { | |
| 2429 u_char *p; | |
| 2430 ngx_int_t rc; | |
| 2431 ngx_table_elt_t *ho; | |
| 2432 | |
| 2433 ho = ngx_list_push(&r->headers_out.headers); | |
| 2434 if (ho == NULL) { | |
| 2435 return NGX_ERROR; | |
| 2436 } | |
| 2437 | |
| 2438 *ho = *h; | |
| 2439 | |
| 2440 if (r->upstream->rewrite_redirect) { | |
| 2441 | |
| 2442 p = (u_char *) ngx_strstr(ho->value.data, "url="); | |
| 2443 | |
| 2444 if (p) { | |
| 2445 rc = r->upstream->rewrite_redirect(r, ho, p + 4 - ho->value.data); | |
| 2446 | |
| 2447 } else { | |
| 2448 return NGX_OK; | |
| 2449 } | |
| 2450 | |
| 529 | 2451 if (rc == NGX_DECLINED) { |
| 2452 return NGX_OK; | |
| 2453 } | |
| 2454 | |
| 509 | 2455 #if (NGX_DEBUG) |
| 2456 if (rc == NGX_OK) { | |
| 2457 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2458 "rewritten refresh: \"%V\"", &ho->value); | |
| 2459 } | |
| 2460 #endif | |
| 2461 | |
| 2462 return rc; | |
| 2463 } | |
| 2464 | |
| 2465 return NGX_OK; | |
| 2466 } | |
| 2467 | |
| 2468 | |
| 2469 #if (NGX_HTTP_GZIP) | |
| 2470 | |
| 2471 static ngx_int_t | |
| 2472 ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
| 2473 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2474 { | |
| 2475 ngx_table_elt_t *ho; | |
| 2476 | |
| 2477 ho = ngx_list_push(&r->headers_out.headers); | |
| 2478 if (ho == NULL) { | |
| 2479 return NGX_ERROR; | |
| 2480 } | |
| 2481 | |
| 2482 *ho = *h; | |
| 2483 | |
| 2484 r->headers_out.content_encoding = ho; | |
| 2485 | |
| 2486 return NGX_OK; | |
| 2487 } | |
| 2488 | |
| 2489 #endif | |
| 2490 | |
| 2491 | |
| 487 | 2492 static ngx_int_t |
| 573 | 2493 ngx_http_upstream_add_variables(ngx_conf_t *cf) |
| 479 | 2494 { |
| 880 | 2495 ngx_http_variable_t *var, *v; |
| 479 | 2496 |
| 573 | 2497 for (v = ngx_http_upstream_vars; v->name.len; v++) { |
| 2498 var = ngx_http_add_variable(cf, &v->name, v->flags); | |
| 2499 if (var == NULL) { | |
| 2500 return NGX_ERROR; | |
| 2501 } | |
| 2502 | |
| 637 | 2503 var->get_handler = v->get_handler; |
| 573 | 2504 var->data = v->data; |
| 2505 } | |
| 2506 | |
| 479 | 2507 return NGX_OK; |
| 2508 } | |
| 509 | 2509 |
| 2510 | |
| 573 | 2511 static ngx_int_t |
| 2512 ngx_http_upstream_status_variable(ngx_http_request_t *r, | |
| 2513 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2514 { | |
| 2515 u_char *p; | |
| 2516 size_t len; | |
| 2517 ngx_uint_t i; | |
| 2518 ngx_http_upstream_state_t *state; | |
| 2519 | |
| 2520 v->valid = 1; | |
| 2521 v->no_cachable = 0; | |
| 2522 v->not_found = 0; | |
| 2523 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2524 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) { |
| 573 | 2525 v->not_found = 1; |
| 2526 return NGX_OK; | |
| 2527 } | |
| 2528 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2529 len = r->upstream_states->nelts * (3 + 2); |
| 573 | 2530 |
| 2531 p = ngx_palloc(r->pool, len); | |
| 2532 if (p == NULL) { | |
| 2533 return NGX_ERROR; | |
| 2534 } | |
| 2535 | |
| 2536 v->data = p; | |
| 2537 | |
| 2538 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
|
2539 state = r->upstream_states->elts; |
| 573 | 2540 |
| 2541 for ( ;; ) { | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2542 if (state[i].status) { |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2543 p = ngx_sprintf(p, "%ui", state[i].status); |
| 573 | 2544 |
| 2545 } else { | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2546 *p++ = '-'; |
| 573 | 2547 } |
| 2548 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2549 if (++i == r->upstream_states->nelts) { |
| 573 | 2550 break; |
| 2551 } | |
| 2552 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2553 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
|
2554 *p++ = ','; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2555 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2556 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2557 } else { |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2558 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2559 *p++ = ':'; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2560 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2561 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2562 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
|
2563 break; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2564 } |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2565 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2566 continue; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2567 } |
| 573 | 2568 } |
| 2569 | |
| 2570 v->len = p - v->data; | |
| 2571 | |
| 2572 return NGX_OK; | |
| 2573 } | |
| 2574 | |
| 2575 | |
| 2576 static ngx_int_t | |
| 2577 ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
| 2578 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2579 { | |
| 2580 u_char *p; | |
| 2581 size_t len; | |
| 2582 ngx_uint_t i; | |
|
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2583 ngx_msec_int_t ms; |
| 573 | 2584 ngx_http_upstream_state_t *state; |
| 2585 | |
| 2586 v->valid = 1; | |
| 2587 v->no_cachable = 0; | |
| 2588 v->not_found = 0; | |
| 2589 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2590 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) { |
| 573 | 2591 v->not_found = 1; |
| 2592 return NGX_OK; | |
| 2593 } | |
| 2594 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2595 len = r->upstream_states->nelts * (NGX_TIME_T_LEN + 4 + 2); |
| 573 | 2596 |
| 2597 p = ngx_palloc(r->pool, len); | |
| 2598 if (p == NULL) { | |
| 2599 return NGX_ERROR; | |
| 2600 } | |
| 2601 | |
| 2602 v->data = p; | |
| 2603 | |
| 2604 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
|
2605 state = r->upstream_states->elts; |
| 573 | 2606 |
| 2607 for ( ;; ) { | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2608 if (state[i].status) { |
|
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2609 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
|
2610 ms = (ms >= 0) ? ms : 0; |
|
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2611 p = ngx_sprintf(p, "%d.%03d", ms / 1000, ms % 1000); |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2612 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2613 } else { |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2614 *p++ = '-'; |
| 573 | 2615 } |
| 2616 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2617 if (++i == r->upstream_states->nelts) { |
| 573 | 2618 break; |
| 2619 } | |
| 2620 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2621 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
|
2622 *p++ = ','; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2623 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2624 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2625 } else { |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2626 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2627 *p++ = ':'; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2628 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2629 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2630 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
|
2631 break; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2632 } |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2633 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2634 continue; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2635 } |
| 573 | 2636 } |
| 2637 | |
| 2638 v->len = p - v->data; | |
| 2639 | |
| 2640 return NGX_OK; | |
| 2641 } | |
| 2642 | |
| 2643 | |
| 1162 | 2644 ngx_int_t |
| 2645 ngx_http_upstream_header_variable(ngx_http_request_t *r, | |
| 2646 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2647 { | |
| 2648 if (r->upstream == NULL) { | |
| 2649 v->not_found = 1; | |
| 2650 return NGX_OK; | |
| 2651 } | |
| 2652 | |
| 2653 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, | |
| 2654 &r->upstream->headers_in.headers.part, | |
| 2655 sizeof("upstream_http_") - 1); | |
| 2656 } | |
| 2657 | |
| 2658 | |
| 651 | 2659 static char * |
| 2660 ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy) | |
| 2661 { | |
| 884 | 2662 char *rv; |
| 2663 void *mconf; | |
| 2664 ngx_str_t *value; | |
| 2665 ngx_url_t u; | |
| 2666 ngx_uint_t m; | |
| 2667 ngx_conf_t pcf; | |
| 2668 ngx_http_module_t *module; | |
| 2669 ngx_http_conf_ctx_t *ctx, *http_ctx; | |
| 2670 ngx_http_upstream_srv_conf_t *uscf; | |
| 2671 | |
| 2672 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 2673 | |
| 2674 value = cf->args->elts; | |
| 2675 u.host = value[1]; | |
| 2676 u.no_resolve = 1; | |
| 2677 | |
| 2678 uscf = ngx_http_upstream_add(cf, &u, NGX_HTTP_UPSTREAM_CREATE | |
| 2679 |NGX_HTTP_UPSTREAM_WEIGHT | |
| 2680 |NGX_HTTP_UPSTREAM_MAX_FAILS | |
| 2681 |NGX_HTTP_UPSTREAM_FAIL_TIMEOUT | |
| 2682 |NGX_HTTP_UPSTREAM_DOWN | |
| 2683 |NGX_HTTP_UPSTREAM_BACKUP); | |
| 2684 if (uscf == NULL) { | |
| 2685 return NGX_CONF_ERROR; | |
| 2686 } | |
| 2687 | |
| 651 | 2688 |
| 2689 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); | |
| 2690 if (ctx == NULL) { | |
| 2691 return NGX_CONF_ERROR; | |
| 2692 } | |
| 2693 | |
| 884 | 2694 http_ctx = cf->ctx; |
| 2695 ctx->main_conf = http_ctx->main_conf; | |
| 651 | 2696 |
| 2697 /* the upstream{}'s srv_conf */ | |
| 2698 | |
| 2699 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 2700 if (ctx->srv_conf == NULL) { | |
| 2701 return NGX_CONF_ERROR; | |
| 2702 } | |
| 2703 | |
| 2704 ctx->srv_conf[ngx_http_upstream_module.ctx_index] = uscf; | |
| 2705 | |
| 884 | 2706 uscf->srv_conf = ctx->srv_conf; |
| 2707 | |
| 651 | 2708 |
| 2709 /* the upstream{}'s loc_conf */ | |
| 2710 | |
| 2711 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 2712 if (ctx->loc_conf == NULL) { | |
| 2713 return NGX_CONF_ERROR; | |
| 2714 } | |
| 2715 | |
| 2716 for (m = 0; ngx_modules[m]; m++) { | |
| 2717 if (ngx_modules[m]->type != NGX_HTTP_MODULE) { | |
| 2718 continue; | |
| 2719 } | |
| 2720 | |
| 2721 module = ngx_modules[m]->ctx; | |
| 2722 | |
| 884 | 2723 if (module->create_srv_conf) { |
| 2724 mconf = module->create_srv_conf(cf); | |
| 2725 if (mconf == NULL) { | |
| 2726 return NGX_CONF_ERROR; | |
| 2727 } | |
| 2728 | |
| 2729 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf; | |
| 2730 } | |
| 2731 | |
| 651 | 2732 if (module->create_loc_conf) { |
| 2733 mconf = module->create_loc_conf(cf); | |
| 2734 if (mconf == NULL) { | |
| 2735 return NGX_CONF_ERROR; | |
| 2736 } | |
| 2737 | |
| 2738 ctx->loc_conf[ngx_modules[m]->ctx_index] = mconf; | |
| 2739 } | |
| 2740 } | |
| 2741 | |
| 2742 | |
| 2743 /* parse inside upstream{} */ | |
| 2744 | |
| 2745 pcf = *cf; | |
| 2746 cf->ctx = ctx; | |
| 2747 cf->cmd_type = NGX_HTTP_UPS_CONF; | |
| 2748 | |
| 2749 rv = ngx_conf_parse(cf, NULL); | |
| 2750 | |
| 2751 *cf = pcf; | |
| 2752 | |
| 2753 if (rv != NGX_CONF_OK) { | |
| 2754 return rv; | |
| 2755 } | |
| 2756 | |
| 2757 if (uscf->servers == NULL) { | |
| 2758 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 2759 "no servers are inside upstream"); | |
| 2760 return NGX_CONF_ERROR; | |
| 2761 } | |
| 2762 | |
| 2763 return rv; | |
| 2764 } | |
| 2765 | |
| 2766 | |
| 2767 static char * | |
| 2768 ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 2769 { | |
| 2770 ngx_http_upstream_srv_conf_t *uscf = conf; | |
| 2771 | |
| 884 | 2772 time_t fail_timeout; |
| 2773 ngx_str_t *value, s; | |
| 2774 ngx_url_t u; | |
| 2775 ngx_int_t weight, max_fails; | |
| 2776 ngx_uint_t i; | |
| 2777 ngx_http_upstream_server_t *us; | |
| 651 | 2778 |
| 2779 if (uscf->servers == NULL) { | |
| 884 | 2780 uscf->servers = ngx_array_create(cf->pool, 4, |
| 2781 sizeof(ngx_http_upstream_server_t)); | |
| 651 | 2782 if (uscf->servers == NULL) { |
| 2783 return NGX_CONF_ERROR; | |
| 2784 } | |
| 2785 } | |
| 2786 | |
| 884 | 2787 us = ngx_array_push(uscf->servers); |
| 2788 if (us == NULL) { | |
| 651 | 2789 return NGX_CONF_ERROR; |
| 2790 } | |
| 2791 | |
| 884 | 2792 ngx_memzero(us, sizeof(ngx_http_upstream_server_t)); |
| 2793 | |
| 651 | 2794 value = cf->args->elts; |
| 2795 | |
| 2796 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 2797 | |
| 2798 u.url = value[1]; | |
| 906 | 2799 u.default_port = 80; |
| 651 | 2800 |
| 2801 if (ngx_parse_url(cf, &u) != NGX_OK) { | |
| 2802 if (u.err) { | |
| 2803 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 2804 "%s in upstream \"%V\"", u.err, &u.url); | |
| 2805 } | |
| 2806 | |
| 2807 return NGX_CONF_ERROR; | |
| 2808 } | |
| 2809 | |
| 663 | 2810 weight = 1; |
| 884 | 2811 max_fails = 1; |
| 2812 fail_timeout = 10; | |
| 2813 | |
| 2814 for (i = 2; i < cf->args->nelts; i++) { | |
| 2815 | |
| 2816 if (ngx_strncmp(value[i].data, "weight=", 7) == 0) { | |
| 2817 | |
| 2818 if (!(uscf->flags & NGX_HTTP_UPSTREAM_WEIGHT)) { | |
| 2819 goto invalid; | |
| 2820 } | |
| 2821 | |
| 2822 weight = ngx_atoi(&value[i].data[7], value[i].len - 7); | |
| 663 | 2823 |
| 2824 if (weight == NGX_ERROR || weight == 0) { | |
| 2825 goto invalid; | |
| 2826 } | |
| 2827 | |
| 884 | 2828 continue; |
| 2829 } | |
| 2830 | |
| 2831 if (ngx_strncmp(value[i].data, "max_fails=", 10) == 0) { | |
| 2832 | |
| 2833 if (!(uscf->flags & NGX_HTTP_UPSTREAM_MAX_FAILS)) { | |
| 2834 goto invalid; | |
| 2835 } | |
| 2836 | |
| 2837 max_fails = ngx_atoi(&value[i].data[10], value[i].len - 10); | |
| 2838 | |
| 2839 if (max_fails == NGX_ERROR) { | |
| 2840 goto invalid; | |
| 2841 } | |
| 2842 | |
| 2843 continue; | |
| 663 | 2844 } |
| 884 | 2845 |
| 2846 if (ngx_strncmp(value[i].data, "fail_timeout=", 13) == 0) { | |
| 2847 | |
| 2848 if (!(uscf->flags & NGX_HTTP_UPSTREAM_FAIL_TIMEOUT)) { | |
| 2849 goto invalid; | |
| 2850 } | |
| 2851 | |
| 2852 s.len = value[i].len - 13; | |
| 2853 s.data = &value[i].data[13]; | |
| 2854 | |
| 2855 fail_timeout = ngx_parse_time(&s, 1); | |
| 2856 | |
| 2857 if (fail_timeout < 0) { | |
| 2858 goto invalid; | |
| 2859 } | |
| 2860 | |
| 2861 continue; | |
| 2862 } | |
| 2863 | |
| 2864 if (ngx_strncmp(value[i].data, "down", 4) == 0) { | |
| 2865 | |
| 2866 if (!(uscf->flags & NGX_HTTP_UPSTREAM_DOWN)) { | |
| 2867 goto invalid; | |
| 2868 } | |
| 2869 | |
| 2870 us->down = 1; | |
| 2871 | |
| 2872 continue; | |
| 2873 } | |
| 2874 | |
| 2875 goto invalid; | |
| 663 | 2876 } |
| 2877 | |
| 884 | 2878 us->addrs = u.addrs; |
| 2879 us->naddrs = u.naddrs; | |
| 2880 us->weight = weight; | |
| 2881 us->max_fails = max_fails; | |
| 2882 us->fail_timeout = fail_timeout; | |
| 651 | 2883 |
| 2884 return NGX_CONF_OK; | |
| 663 | 2885 |
| 2886 invalid: | |
| 2887 | |
| 884 | 2888 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 2889 "invalid parameter \"%V\"", &value[i]); | |
| 663 | 2890 |
| 2891 return NGX_CONF_ERROR; | |
| 651 | 2892 } |
| 2893 | |
| 2894 | |
| 2895 ngx_http_upstream_srv_conf_t * | |
| 884 | 2896 ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags) |
| 651 | 2897 { |
| 2898 ngx_uint_t i; | |
| 884 | 2899 ngx_http_upstream_server_t *us; |
| 651 | 2900 ngx_http_upstream_srv_conf_t *uscf, **uscfp; |
| 2901 ngx_http_upstream_main_conf_t *umcf; | |
| 2902 | |
| 884 | 2903 if (!(flags & NGX_HTTP_UPSTREAM_CREATE)) { |
| 2904 | |
| 651 | 2905 if (ngx_parse_url(cf, u) != NGX_OK) { |
| 2906 if (u->err) { | |
| 2907 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 2908 "%s in upstream \"%V\"", u->err, &u->url); | |
| 2909 } | |
| 2910 | |
| 2911 return NULL; | |
| 2912 } | |
| 2913 } | |
| 2914 | |
| 2915 umcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_upstream_module); | |
| 2916 | |
| 2917 uscfp = umcf->upstreams.elts; | |
| 2918 | |
| 2919 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
| 906 | 2920 |
| 2921 if (uscfp[i]->host.len != u->host.len | |
| 884 | 2922 || ngx_strncasecmp(uscfp[i]->host.data, u->host.data, u->host.len) |
| 2923 != 0) | |
| 2924 { | |
| 651 | 2925 continue; |
| 2926 } | |
| 2927 | |
| 884 | 2928 if ((flags & NGX_HTTP_UPSTREAM_CREATE) |
| 2929 && (uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE)) | |
| 651 | 2930 { |
| 884 | 2931 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 2932 "duplicate upstream \"%V\"", &u->host); | |
| 2933 return NULL; | |
| 651 | 2934 } |
| 884 | 2935 |
| 906 | 2936 if ((uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE) && u->port) { |
| 884 | 2937 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
| 906 | 2938 "upstream \"%V\" may not have port %d", |
| 2939 &u->host, u->port); | |
| 2940 return NULL; | |
| 2941 } | |
| 2942 | |
| 2943 if ((flags & NGX_HTTP_UPSTREAM_CREATE) && uscfp[i]->port) { | |
| 2944 ngx_log_error(NGX_LOG_WARN, cf->log, 0, | |
| 2945 "upstream \"%V\" may not have port %d in %s:%ui", | |
| 2946 &u->host, uscfp[i]->port, | |
| 2947 uscfp[i]->file_name.data, uscfp[i]->line); | |
| 2948 return NULL; | |
| 2949 } | |
| 2950 | |
| 2951 if (uscfp[i]->port != u->port) { | |
| 2952 continue; | |
| 884 | 2953 } |
| 2954 | |
| 2955 return uscfp[i]; | |
| 651 | 2956 } |
| 2957 | |
| 2958 uscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_srv_conf_t)); | |
| 2959 if (uscf == NULL) { | |
| 2960 return NULL; | |
| 2961 } | |
| 2962 | |
| 884 | 2963 uscf->flags = flags; |
| 651 | 2964 uscf->host = u->host; |
| 2965 uscf->file_name = cf->conf_file->file.name; | |
| 2966 uscf->line = cf->conf_file->line; | |
| 906 | 2967 uscf->port = u->port; |
| 2968 uscf->default_port = u->default_port; | |
| 884 | 2969 |
| 2970 if (u->naddrs == 1) { | |
| 2971 uscf->servers = ngx_array_create(cf->pool, 1, | |
| 2972 sizeof(ngx_http_upstream_server_t)); | |
| 2973 if (uscf->servers == NULL) { | |
| 2974 return NGX_CONF_ERROR; | |
| 2975 } | |
| 2976 | |
| 2977 us = ngx_array_push(uscf->servers); | |
| 2978 if (us == NULL) { | |
| 2979 return NGX_CONF_ERROR; | |
| 2980 } | |
| 2981 | |
| 2982 ngx_memzero(us, sizeof(ngx_http_upstream_server_t)); | |
| 2983 | |
| 2984 us->addrs = u->addrs; | |
| 2985 us->naddrs = u->naddrs; | |
| 2986 } | |
| 651 | 2987 |
| 2988 uscfp = ngx_array_push(&umcf->upstreams); | |
| 2989 if (uscfp == NULL) { | |
| 2990 return NULL; | |
| 2991 } | |
| 2992 | |
| 2993 *uscfp = uscf; | |
| 2994 | |
| 2995 return uscf; | |
| 2996 } | |
| 2997 | |
| 2998 | |
| 509 | 2999 static void * |
| 3000 ngx_http_upstream_create_main_conf(ngx_conf_t *cf) | |
| 3001 { | |
| 3002 ngx_http_upstream_main_conf_t *umcf; | |
| 3003 | |
| 3004 umcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_main_conf_t)); | |
| 3005 if (umcf == NULL) { | |
| 3006 return NULL; | |
| 3007 } | |
| 3008 | |
| 651 | 3009 if (ngx_array_init(&umcf->upstreams, cf->pool, 4, |
| 3010 sizeof(ngx_http_upstream_srv_conf_t *)) | |
| 3011 != NGX_OK) | |
| 3012 { | |
| 3013 return NGX_CONF_ERROR; | |
| 3014 } | |
| 3015 | |
| 509 | 3016 return umcf; |
| 3017 } | |
| 3018 | |
| 3019 | |
| 3020 static char * | |
| 651 | 3021 ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf) |
| 509 | 3022 { |
| 3023 ngx_http_upstream_main_conf_t *umcf = conf; | |
| 3024 | |
| 651 | 3025 ngx_uint_t i; |
| 3026 ngx_array_t headers_in; | |
| 3027 ngx_hash_key_t *hk; | |
| 3028 ngx_hash_init_t hash; | |
| 884 | 3029 ngx_http_upstream_init_pt init; |
| 651 | 3030 ngx_http_upstream_header_t *header; |
| 3031 ngx_http_upstream_srv_conf_t **uscfp; | |
| 3032 | |
| 3033 uscfp = umcf->upstreams.elts; | |
| 3034 | |
| 3035 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
| 884 | 3036 |
| 3037 init = uscfp[i]->peer.init_upstream ? uscfp[i]->peer.init_upstream: | |
| 3038 ngx_http_upstream_init_round_robin; | |
| 3039 | |
| 3040 if (init(cf, uscfp[i]) != NGX_OK) { | |
| 651 | 3041 return NGX_CONF_ERROR; |
| 3042 } | |
| 3043 } | |
| 649 | 3044 |
| 663 | 3045 |
| 884 | 3046 /* upstream_headers_in_hash */ |
| 3047 | |
| 649 | 3048 if (ngx_array_init(&headers_in, cf->temp_pool, 32, sizeof(ngx_hash_key_t)) |
| 3049 != NGX_OK) | |
| 509 | 3050 { |
| 3051 return NGX_CONF_ERROR; | |
| 3052 } | |
| 3053 | |
| 649 | 3054 for (header = ngx_http_upstream_headers_in; header->name.len; header++) { |
| 3055 hk = ngx_array_push(&headers_in); | |
| 3056 if (hk == NULL) { | |
| 3057 return NGX_CONF_ERROR; | |
| 3058 } | |
| 3059 | |
| 3060 hk->key = header->name; | |
| 3061 hk->key_hash = ngx_hash_key_lc(header->name.data, header->name.len); | |
| 3062 hk->value = header; | |
| 3063 } | |
| 3064 | |
| 3065 hash.hash = &umcf->headers_in_hash; | |
| 3066 hash.key = ngx_hash_key_lc; | |
| 3067 hash.max_size = 512; | |
|
751
bae59a740c40
align hash bucket size to cache line
Igor Sysoev <igor@sysoev.ru>
parents:
750
diff
changeset
|
3068 hash.bucket_size = ngx_align(64, ngx_cacheline_size); |
| 649 | 3069 hash.name = "upstream_headers_in_hash"; |
| 3070 hash.pool = cf->pool; | |
| 3071 hash.temp_pool = NULL; | |
| 3072 | |
| 3073 if (ngx_hash_init(&hash, headers_in.elts, headers_in.nelts) != NGX_OK) { | |
| 3074 return NGX_CONF_ERROR; | |
| 3075 } | |
| 509 | 3076 |
| 3077 return NGX_CONF_OK; | |
| 3078 } |