Mercurial > hg > nginx
annotate src/http/ngx_http_upstream.c @ 1709:a179755ee1ea stable-0.5
r1559, r1565 merge:
optimizations
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Wed, 12 Dec 2007 16:49:38 +0000 |
| parents | d5db0e96bcc6 |
| children | 20a0f2880d45 |
| 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); |
| 1381 | 36 static void ngx_http_upstream_store(ngx_http_request_t *r, |
| 37 ngx_http_upstream_t *u); | |
| 479 | 38 static void ngx_http_upstream_dummy_handler(ngx_event_t *wev); |
| 39 static void ngx_http_upstream_next(ngx_http_request_t *r, | |
| 487 | 40 ngx_http_upstream_t *u, ngx_uint_t ft_type); |
| 569 | 41 static void ngx_http_upstream_cleanup(void *data); |
| 479 | 42 static void ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
| 487 | 43 ngx_http_upstream_t *u, ngx_int_t rc); |
| 479 | 44 |
| 509 | 45 static ngx_int_t ngx_http_upstream_process_header_line(ngx_http_request_t *r, |
| 46 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 47 static ngx_int_t | |
| 48 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
| 49 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 50 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, | |
| 51 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 527 | 52 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, |
| 53 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 649 | 54 static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r, |
| 509 | 55 ngx_table_elt_t *h, ngx_uint_t offset); |
| 657 | 56 static ngx_int_t ngx_http_upstream_process_charset(ngx_http_request_t *r, |
| 57 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 649 | 58 static ngx_int_t ngx_http_upstream_copy_header_line(ngx_http_request_t *r, |
| 509 | 59 ngx_table_elt_t *h, ngx_uint_t offset); |
| 60 static ngx_int_t | |
| 61 ngx_http_upstream_copy_multi_header_lines(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_type(ngx_http_request_t *r, | |
| 64 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 65 static ngx_int_t ngx_http_upstream_copy_content_length(ngx_http_request_t *r, | |
| 66 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 67 static ngx_int_t ngx_http_upstream_rewrite_location(ngx_http_request_t *r, | |
| 68 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 69 static ngx_int_t ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, | |
| 70 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 71 #if (NGX_HTTP_GZIP) | |
| 72 static ngx_int_t ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
| 73 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 74 #endif | |
| 75 | |
| 573 | 76 static ngx_int_t ngx_http_upstream_add_variables(ngx_conf_t *cf); |
| 1181 | 77 static ngx_int_t ngx_http_upstream_addr_variable(ngx_http_request_t *r, |
| 78 ngx_http_variable_value_t *v, uintptr_t data); | |
| 573 | 79 static ngx_int_t ngx_http_upstream_status_variable(ngx_http_request_t *r, |
| 80 ngx_http_variable_value_t *v, uintptr_t data); | |
| 81 static ngx_int_t ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
| 82 ngx_http_variable_value_t *v, uintptr_t data); | |
| 83 | |
| 651 | 84 static char *ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy); |
| 85 static char *ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 86 void *conf); | |
| 87 | |
| 509 | 88 static void *ngx_http_upstream_create_main_conf(ngx_conf_t *cf); |
| 651 | 89 static char *ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf); |
| 509 | 90 |
| 577 | 91 #if (NGX_HTTP_SSL) |
| 591 | 92 static void ngx_http_upstream_ssl_init_connection(ngx_http_request_t *, |
| 93 ngx_http_upstream_t *u, ngx_connection_t *c); | |
| 577 | 94 static void ngx_http_upstream_ssl_handshake(ngx_connection_t *c); |
| 95 #endif | |
| 96 | |
| 509 | 97 |
| 98 ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = { | |
| 99 | |
| 100 { ngx_string("Status"), | |
| 101 ngx_http_upstream_process_header_line, | |
| 102 offsetof(ngx_http_upstream_headers_in_t, status), | |
| 649 | 103 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 509 | 104 |
| 105 { ngx_string("Content-Type"), | |
| 106 ngx_http_upstream_process_header_line, | |
| 107 offsetof(ngx_http_upstream_headers_in_t, content_type), | |
| 673 | 108 ngx_http_upstream_copy_content_type, 0, 1 }, |
| 509 | 109 |
| 110 { ngx_string("Content-Length"), | |
| 111 ngx_http_upstream_process_header_line, | |
| 112 offsetof(ngx_http_upstream_headers_in_t, content_length), | |
| 515 | 113 ngx_http_upstream_copy_content_length, 0, 0 }, |
| 509 | 114 |
| 115 { ngx_string("Date"), | |
| 116 ngx_http_upstream_process_header_line, | |
| 117 offsetof(ngx_http_upstream_headers_in_t, date), | |
| 649 | 118 ngx_http_upstream_copy_header_line, |
| 119 offsetof(ngx_http_headers_out_t, date), 0 }, | |
| 509 | 120 |
| 1381 | 121 { ngx_string("Last-Modified"), |
| 122 ngx_http_upstream_process_header_line, | |
| 123 offsetof(ngx_http_upstream_headers_in_t, last_modified), | |
| 124 ngx_http_upstream_copy_header_line, | |
| 125 offsetof(ngx_http_headers_out_t, last_modified), 0 }, | |
| 126 | |
| 509 | 127 { ngx_string("Server"), |
| 128 ngx_http_upstream_process_header_line, | |
| 129 offsetof(ngx_http_upstream_headers_in_t, server), | |
| 649 | 130 ngx_http_upstream_copy_header_line, |
| 131 offsetof(ngx_http_headers_out_t, server), 0 }, | |
| 509 | 132 |
| 529 | 133 { ngx_string("WWW-Authenticate"), |
| 134 ngx_http_upstream_process_header_line, | |
| 135 offsetof(ngx_http_upstream_headers_in_t, www_authenticate), | |
| 136 ngx_http_upstream_copy_header_line, 0, 0 }, | |
| 137 | |
| 509 | 138 { ngx_string("Location"), |
| 139 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 140 ngx_http_upstream_rewrite_location, 0, 0 }, |
| 509 | 141 |
| 142 { ngx_string("Refresh"), | |
| 143 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 144 ngx_http_upstream_rewrite_refresh, 0, 0 }, |
| 145 | |
| 146 { ngx_string("Set-Cookie"), | |
| 147 ngx_http_upstream_ignore_header_line, 0, | |
| 531 | 148 ngx_http_upstream_copy_header_line, 0, 1 }, |
| 149 | |
| 150 { ngx_string("Content-Disposition"), | |
| 151 ngx_http_upstream_ignore_header_line, 0, | |
| 152 ngx_http_upstream_copy_header_line, 0, 1 }, | |
| 509 | 153 |
| 154 { ngx_string("Cache-Control"), | |
| 155 ngx_http_upstream_process_multi_header_lines, | |
| 156 offsetof(ngx_http_upstream_headers_in_t, cache_control), | |
| 157 ngx_http_upstream_copy_multi_header_lines, | |
| 515 | 158 offsetof(ngx_http_headers_out_t, cache_control), 1 }, |
| 509 | 159 |
| 573 | 160 { ngx_string("Expires"), |
| 161 ngx_http_upstream_process_header_line, | |
| 162 offsetof(ngx_http_upstream_headers_in_t, expires), | |
| 163 ngx_http_upstream_copy_header_line, | |
| 164 offsetof(ngx_http_headers_out_t, expires), 1 }, | |
| 165 | |
| 577 | 166 { ngx_string("Accept-Ranges"), |
| 167 ngx_http_upstream_process_header_line, | |
| 168 offsetof(ngx_http_upstream_headers_in_t, accept_ranges), | |
| 169 ngx_http_upstream_copy_header_line, | |
| 170 offsetof(ngx_http_headers_out_t, accept_ranges), 1 }, | |
| 171 | |
| 509 | 172 { ngx_string("Connection"), |
| 173 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 174 ngx_http_upstream_ignore_header_line, 0, 0 }, |
| 509 | 175 |
| 641 | 176 { ngx_string("Keep-Alive"), |
| 177 ngx_http_upstream_ignore_header_line, 0, | |
| 178 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 179 | |
| 509 | 180 { ngx_string("X-Powered-By"), |
| 181 ngx_http_upstream_ignore_header_line, 0, | |
| 649 | 182 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 509 | 183 |
| 184 { ngx_string("X-Accel-Expires"), | |
| 185 ngx_http_upstream_process_header_line, | |
| 186 offsetof(ngx_http_upstream_headers_in_t, x_accel_expires), | |
| 649 | 187 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 515 | 188 |
| 189 { ngx_string("X-Accel-Redirect"), | |
| 190 ngx_http_upstream_process_header_line, | |
| 191 offsetof(ngx_http_upstream_headers_in_t, x_accel_redirect), | |
| 192 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 509 | 193 |
| 527 | 194 { ngx_string("X-Accel-Limit-Rate"), |
| 195 ngx_http_upstream_process_limit_rate, 0, | |
| 196 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 197 | |
| 649 | 198 { ngx_string("X-Accel-Buffering"), |
| 199 ngx_http_upstream_process_buffering, 0, | |
| 200 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 201 | |
| 657 | 202 { ngx_string("X-Accel-Charset"), |
| 203 ngx_http_upstream_process_charset, 0, | |
| 204 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 205 | |
| 509 | 206 #if (NGX_HTTP_GZIP) |
| 207 { ngx_string("Content-Encoding"), | |
| 208 ngx_http_upstream_process_header_line, | |
| 209 offsetof(ngx_http_upstream_headers_in_t, content_encoding), | |
| 515 | 210 ngx_http_upstream_copy_content_encoding, 0, 0 }, |
| 509 | 211 #endif |
| 212 | |
| 515 | 213 { ngx_null_string, NULL, 0, NULL, 0, 0 } |
| 509 | 214 }; |
| 479 | 215 |
| 216 | |
| 651 | 217 static ngx_command_t ngx_http_upstream_commands[] = { |
| 218 | |
| 219 { ngx_string("upstream"), | |
| 220 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1, | |
| 221 ngx_http_upstream, | |
| 222 0, | |
| 223 0, | |
| 224 NULL }, | |
| 225 | |
| 226 { ngx_string("server"), | |
| 884 | 227 NGX_HTTP_UPS_CONF|NGX_CONF_1MORE, |
| 651 | 228 ngx_http_upstream_server, |
| 229 NGX_HTTP_SRV_CONF_OFFSET, | |
| 230 0, | |
| 231 NULL }, | |
| 232 | |
| 233 ngx_null_command | |
| 234 }; | |
| 235 | |
| 236 | |
| 237 static ngx_http_module_t ngx_http_upstream_module_ctx = { | |
| 573 | 238 ngx_http_upstream_add_variables, /* preconfiguration */ |
| 509 | 239 NULL, /* postconfiguration */ |
| 240 | |
| 241 ngx_http_upstream_create_main_conf, /* create main configuration */ | |
| 651 | 242 ngx_http_upstream_init_main_conf, /* init main configuration */ |
| 479 | 243 |
| 244 NULL, /* create server configuration */ | |
| 245 NULL, /* merge server configuration */ | |
| 246 | |
| 247 NULL, /* create location configuration */ | |
| 248 NULL /* merge location configuration */ | |
| 249 }; | |
| 577 | 250 |
| 479 | 251 |
| 252 ngx_module_t ngx_http_upstream_module = { | |
| 509 | 253 NGX_MODULE_V1, |
| 479 | 254 &ngx_http_upstream_module_ctx, /* module context */ |
| 651 | 255 ngx_http_upstream_commands, /* module directives */ |
| 479 | 256 NGX_HTTP_MODULE, /* module type */ |
| 541 | 257 NULL, /* init master */ |
| 479 | 258 NULL, /* init module */ |
| 541 | 259 NULL, /* init process */ |
| 260 NULL, /* init thread */ | |
| 261 NULL, /* exit thread */ | |
| 262 NULL, /* exit process */ | |
| 263 NULL, /* exit master */ | |
| 264 NGX_MODULE_V1_PADDING | |
| 479 | 265 }; |
| 266 | |
| 267 | |
| 573 | 268 static ngx_http_variable_t ngx_http_upstream_vars[] = { |
| 269 | |
| 1181 | 270 { ngx_string("upstream_addr"), NULL, |
| 271 ngx_http_upstream_addr_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, | |
| 272 | |
| 637 | 273 { ngx_string("upstream_status"), NULL, |
| 583 | 274 ngx_http_upstream_status_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
| 573 | 275 |
| 637 | 276 { ngx_string("upstream_response_time"), NULL, |
| 583 | 277 ngx_http_upstream_response_time_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
| 573 | 278 |
| 637 | 279 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
| 573 | 280 }; |
| 281 | |
| 282 | |
| 487 | 283 void |
| 284 ngx_http_upstream_init(ngx_http_request_t *r) | |
| 479 | 285 { |
| 509 | 286 ngx_connection_t *c; |
| 569 | 287 ngx_http_cleanup_t *cln; |
| 509 | 288 ngx_http_upstream_t *u; |
| 289 ngx_http_core_loc_conf_t *clcf; | |
| 479 | 290 |
| 291 c = r->connection; | |
| 292 | |
| 293 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 294 "http init upstream, client timer: %d", c->read->timer_set); | |
| 295 | |
| 296 if (c->read->timer_set) { | |
| 297 ngx_del_timer(c->read); | |
| 298 } | |
| 299 | |
| 629 | 300 u = r->upstream; |
| 301 | |
| 302 if (!r->post_action && !u->conf->ignore_client_abort) { | |
| 615 | 303 r->read_event_handler = ngx_http_upstream_rd_check_broken_connection; |
| 304 r->write_event_handler = ngx_http_upstream_wr_check_broken_connection; | |
| 305 } | |
| 577 | 306 |
| 479 | 307 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) { |
| 308 | |
| 309 if (!c->write->active) { | |
| 531 | 310 if (ngx_add_event(c->write, NGX_WRITE_EVENT, NGX_CLEAR_EVENT) |
| 311 == NGX_ERROR) | |
| 479 | 312 { |
| 313 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 314 return; | |
| 315 } | |
| 316 } | |
| 317 } | |
| 318 | |
| 537 | 319 if (r->request_body) { |
| 320 u->request_bufs = r->request_body->bufs; | |
| 321 } | |
| 509 | 322 |
| 884 | 323 if (u->conf->upstream->peer.init(r, u->conf->upstream) != NGX_OK) { |
| 324 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 325 return; | |
| 326 } | |
| 327 | |
| 537 | 328 if (u->create_request(r) != NGX_OK) { |
| 479 | 329 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 330 return; | |
| 331 } | |
| 332 | |
| 509 | 333 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
| 479 | 334 |
| 335 u->output.sendfile = r->connection->sendfile; | |
| 336 u->output.pool = r->pool; | |
| 337 u->output.bufs.num = 1; | |
| 509 | 338 u->output.bufs.size = clcf->client_body_buffer_size; |
| 479 | 339 u->output.output_filter = ngx_chain_writer; |
| 340 u->output.filter_ctx = &u->writer; | |
| 341 | |
| 342 u->writer.pool = r->pool; | |
| 343 | |
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344 if (r->upstream_states == NULL) { |
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345 |
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346 r->upstream_states = ngx_array_create(r->pool, 1, |
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347 sizeof(ngx_http_upstream_state_t)); |
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348 if (r->upstream_states == NULL) { |
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349 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); |
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350 return; |
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351 } |
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352 |
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353 } else { |
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354 |
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355 u->state = ngx_array_push(r->upstream_states); |
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356 if (u->state == NULL) { |
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357 ngx_http_upstream_finalize_request(r, u, |
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358 NGX_HTTP_INTERNAL_SERVER_ERROR); |
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359 return; |
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360 } |
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361 |
|
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362 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t)); |
| 479 | 363 } |
| 364 | |
| 593 | 365 cln = ngx_http_cleanup_add(r, 0); |
| 569 | 366 if (cln == NULL) { |
| 367 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 368 return; | |
| 369 } | |
| 370 | |
| 371 cln->handler = ngx_http_upstream_cleanup; | |
| 372 cln->data = r; | |
| 373 u->cleanup = &cln->handler; | |
| 374 | |
| 1381 | 375 u->store = (u->conf->store || u->conf->store_lengths); |
| 376 | |
| 479 | 377 ngx_http_upstream_connect(r, u); |
| 378 } | |
| 379 | |
| 380 | |
| 487 | 381 static void |
| 509 | 382 ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r) |
| 383 { | |
| 384 ngx_http_upstream_check_broken_connection(r, r->connection->read); | |
| 385 } | |
| 386 | |
| 387 | |
| 388 static void | |
| 389 ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r) | |
| 390 { | |
| 391 ngx_http_upstream_check_broken_connection(r, r->connection->write); | |
| 392 } | |
| 393 | |
| 394 | |
| 395 static void | |
| 396 ngx_http_upstream_check_broken_connection(ngx_http_request_t *r, | |
| 397 ngx_event_t *ev) | |
| 479 | 398 { |
| 399 int n; | |
| 400 char buf[1]; | |
| 577 | 401 ngx_err_t err; |
| 479 | 402 ngx_connection_t *c; |
| 403 ngx_http_upstream_t *u; | |
| 404 | |
| 527 | 405 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, ev->log, 0, |
| 406 "http upstream check client, write event:%d, \"%V\"", | |
| 407 ev->write, &r->uri); | |
| 479 | 408 |
| 509 | 409 c = r->connection; |
| 483 | 410 u = r->upstream; |
| 411 | |
| 583 | 412 if (c->error) { |
| 527 | 413 ngx_http_upstream_finalize_request(r, u, |
| 414 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 415 return; | |
| 416 } | |
| 417 | |
| 483 | 418 if (u->peer.connection == NULL) { |
| 419 return; | |
| 420 } | |
| 421 | |
| 479 | 422 #if (NGX_HAVE_KQUEUE) |
| 423 | |
| 424 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { | |
| 425 | |
| 426 if (!ev->pending_eof) { | |
| 427 return; | |
| 428 } | |
| 429 | |
| 430 ev->eof = 1; | |
| 583 | 431 c->error = 1; |
| 479 | 432 |
| 433 if (ev->kq_errno) { | |
| 434 ev->error = 1; | |
| 435 } | |
| 436 | |
| 1381 | 437 if (!u->cachable && !u->store && u->peer.connection) { |
| 479 | 438 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno, |
| 527 | 439 "kevent() reported that client closed prematurely " |
| 440 "connection, so upstream connection is closed too"); | |
| 479 | 441 ngx_http_upstream_finalize_request(r, u, |
| 442 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 443 return; | |
| 444 } | |
| 445 | |
| 446 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno, | |
| 447 "kevent() reported that client closed " | |
| 448 "prematurely connection"); | |
| 449 | |
| 450 if (u->peer.connection == NULL) { | |
| 451 ngx_http_upstream_finalize_request(r, u, | |
| 452 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 453 return; | |
| 454 } | |
| 455 | |
| 456 return; | |
| 457 } | |
| 458 | |
| 459 #endif | |
| 460 | |
| 461 n = recv(c->fd, buf, 1, MSG_PEEK); | |
| 462 | |
| 463 err = ngx_socket_errno; | |
| 464 | |
| 1109 | 465 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ev->log, err, |
| 466 "http upstream recv(): %d", n); | |
| 467 | |
| 479 | 468 /* |
| 469 * we do not need to disable the write event because | |
| 470 * that event has NGX_USE_CLEAR_EVENT type | |
| 471 */ | |
| 472 | |
| 473 if (ev->write && (n >= 0 || err == NGX_EAGAIN)) { | |
| 474 return; | |
| 475 } | |
| 476 | |
| 477 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) { | |
| 478 if (ngx_del_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) { | |
| 479 ngx_http_upstream_finalize_request(r, u, | |
| 480 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 481 return; | |
| 482 } | |
| 483 } | |
| 484 | |
| 485 if (n > 0) { | |
| 486 return; | |
| 487 } | |
| 488 | |
| 489 if (n == -1) { | |
| 490 if (err == NGX_EAGAIN) { | |
| 491 return; | |
| 492 } | |
| 493 | |
| 494 ev->error = 1; | |
| 495 | |
| 483 | 496 } else { /* n == 0 */ |
| 479 | 497 err = 0; |
| 498 } | |
| 499 | |
| 529 | 500 ev->eof = 1; |
| 583 | 501 c->error = 1; |
| 529 | 502 |
| 1381 | 503 if (!u->cachable && !u->store && u->peer.connection) { |
| 479 | 504 ngx_log_error(NGX_LOG_INFO, ev->log, err, |
| 505 "client closed prematurely connection, " | |
| 506 "so upstream connection is closed too"); | |
| 507 ngx_http_upstream_finalize_request(r, u, | |
| 508 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 509 return; | |
| 510 } | |
| 511 | |
| 512 ngx_log_error(NGX_LOG_INFO, ev->log, err, | |
| 513 "client closed prematurely connection"); | |
| 514 | |
| 515 if (u->peer.connection == NULL) { | |
| 516 ngx_http_upstream_finalize_request(r, u, | |
| 517 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 518 return; | |
| 519 } | |
| 520 } | |
| 521 | |
| 522 | |
| 487 | 523 static void |
| 524 ngx_http_upstream_connect(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 479 | 525 { |
| 591 | 526 ngx_int_t rc; |
| 665 | 527 ngx_time_t *tp; |
| 591 | 528 ngx_connection_t *c; |
| 479 | 529 |
| 483 | 530 r->connection->log->action = "connecting to upstream"; |
| 479 | 531 |
| 532 r->connection->single_connection = 0; | |
| 533 | |
|
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|
534 if (u->state && u->state->response_sec) { |
| 665 | 535 tp = ngx_timeofday(); |
|
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536 u->state->response_sec = tp->sec - u->state->response_sec; |
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537 u->state->response_msec = tp->msec - u->state->response_msec; |
| 665 | 538 } |
| 539 | |
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540 u->state = ngx_array_push(r->upstream_states); |
| 665 | 541 if (u->state == NULL) { |
| 542 ngx_http_upstream_finalize_request(r, u, | |
| 543 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 544 return; | |
| 545 } | |
| 546 | |
| 547 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t)); | |
| 548 | |
| 549 tp = ngx_timeofday(); | |
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550 u->state->response_sec = tp->sec; |
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551 u->state->response_msec = tp->msec; |
| 665 | 552 |
| 479 | 553 rc = ngx_event_connect_peer(&u->peer); |
| 554 | |
| 555 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 556 "http upstream connect: %i", rc); | |
| 557 | |
| 558 if (rc == NGX_ERROR) { | |
| 559 ngx_http_upstream_finalize_request(r, u, | |
| 560 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 561 return; | |
| 562 } | |
| 563 | |
| 884 | 564 u->state->peer = u->peer.name; |
| 479 | 565 |
| 543 | 566 if (rc == NGX_BUSY) { |
| 567 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no live upstreams"); | |
| 568 } | |
| 569 | |
| 570 if (rc == NGX_BUSY || rc == NGX_DECLINED) { | |
| 479 | 571 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
| 572 return; | |
| 573 } | |
| 574 | |
| 577 | 575 /* rc == NGX_OK || rc == NGX_AGAIN */ |
| 576 | |
| 479 | 577 c = u->peer.connection; |
| 578 | |
| 579 c->data = r; | |
| 591 | 580 |
| 509 | 581 c->write->handler = ngx_http_upstream_send_request_handler; |
| 582 c->read->handler = ngx_http_upstream_process_header; | |
| 479 | 583 |
| 1509 | 584 c->sendfile &= r->connection->sendfile; |
| 479 | 585 |
| 586 c->pool = r->pool; | |
| 587 c->read->log = c->write->log = c->log = r->connection->log; | |
| 588 | |
| 589 /* init or reinit the ngx_output_chain() and ngx_chain_writer() contexts */ | |
| 590 | |
| 591 u->writer.out = NULL; | |
| 592 u->writer.last = &u->writer.out; | |
| 593 u->writer.connection = c; | |
| 594 u->writer.limit = 0; | |
| 595 | |
| 596 if (u->request_sent) { | |
| 509 | 597 if (ngx_http_upstream_reinit(r, u) != NGX_OK) { |
| 598 ngx_http_upstream_finalize_request(r, u, | |
| 599 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 600 return; | |
| 601 } | |
| 479 | 602 } |
| 603 | |
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604 if (r->request_body |
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605 && r->request_body->buf |
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606 && r->request_body->temp_file |
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607 && r == r->main) |
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|
608 { |
| 573 | 609 /* |
| 610 * the r->request_body->buf can be reused for one request only, | |
| 611 * the subrequests should allocate their own temporay bufs | |
| 612 */ | |
| 613 | |
| 614 u->output.free = ngx_alloc_chain_link(r->pool); | |
| 615 if (u->output.free == NULL) { | |
| 616 ngx_http_upstream_finalize_request(r, u, | |
| 617 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 618 return; | |
| 479 | 619 } |
| 573 | 620 |
| 621 u->output.free->buf = r->request_body->buf; | |
| 622 u->output.free->next = NULL; | |
| 623 u->output.allocated = 1; | |
| 624 | |
| 625 r->request_body->buf->pos = r->request_body->buf->start; | |
| 626 r->request_body->buf->last = r->request_body->buf->start; | |
| 627 r->request_body->buf->tag = u->output.tag; | |
| 479 | 628 } |
| 629 | |
| 630 u->request_sent = 0; | |
| 631 | |
| 632 if (rc == NGX_AGAIN) { | |
| 633 ngx_add_timer(c->write, u->conf->connect_timeout); | |
| 634 return; | |
| 635 } | |
| 636 | |
| 577 | 637 #if (NGX_HTTP_SSL) |
| 638 | |
| 591 | 639 if (u->conf->ssl && c->ssl == NULL) { |
| 640 ngx_http_upstream_ssl_init_connection(r, u, c); | |
| 577 | 641 return; |
| 642 } | |
| 643 | |
| 644 #endif | |
| 645 | |
| 479 | 646 ngx_http_upstream_send_request(r, u); |
| 647 } | |
| 648 | |
| 649 | |
| 577 | 650 #if (NGX_HTTP_SSL) |
| 651 | |
| 652 static void | |
| 591 | 653 ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r, |
| 654 ngx_http_upstream_t *u, ngx_connection_t *c) | |
| 655 { | |
| 884 | 656 ngx_int_t rc; |
| 591 | 657 |
| 658 if (ngx_ssl_create_connection(u->conf->ssl, c, | |
| 659 NGX_SSL_BUFFER|NGX_SSL_CLIENT) | |
| 660 == NGX_ERROR) | |
| 661 { | |
| 662 ngx_http_upstream_finalize_request(r, u, | |
| 663 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 664 return; | |
| 665 } | |
| 666 | |
| 667 c->sendfile = 0; | |
| 619 | 668 u->output.sendfile = 0; |
| 591 | 669 |
| 1346 | 670 if (u->peer.set_session(&u->peer, u->peer.data) != NGX_OK) { |
| 591 | 671 ngx_http_upstream_finalize_request(r, u, |
| 672 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 673 return; | |
| 674 } | |
| 675 | |
| 641 | 676 r->connection->log->action = "SSL handshaking to upstream"; |
| 677 | |
| 591 | 678 rc = ngx_ssl_handshake(c); |
| 679 | |
| 680 if (rc == NGX_AGAIN) { | |
| 681 c->ssl->handler = ngx_http_upstream_ssl_handshake; | |
| 682 return; | |
| 683 } | |
| 684 | |
| 685 ngx_http_upstream_ssl_handshake(c); | |
| 686 } | |
| 687 | |
| 688 | |
| 689 static void | |
| 577 | 690 ngx_http_upstream_ssl_handshake(ngx_connection_t *c) |
| 691 { | |
| 692 ngx_http_request_t *r; | |
| 693 ngx_http_upstream_t *u; | |
| 694 | |
| 695 r = c->data; | |
| 696 u = r->upstream; | |
| 697 | |
| 698 if (c->ssl->handshaked) { | |
| 699 | |
| 884 | 700 u->peer.save_session(&u->peer, u->peer.data); |
| 701 | |
| 577 | 702 c->write->handler = ngx_http_upstream_send_request_handler; |
| 703 c->read->handler = ngx_http_upstream_process_header; | |
| 704 | |
| 705 ngx_http_upstream_send_request(r, u); | |
| 706 | |
| 707 return; | |
| 708 } | |
| 709 | |
| 710 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 711 | |
| 712 } | |
| 713 | |
| 714 #endif | |
| 715 | |
| 716 | |
| 509 | 717 static ngx_int_t |
| 487 | 718 ngx_http_upstream_reinit(ngx_http_request_t *r, ngx_http_upstream_t *u) |
| 479 | 719 { |
| 720 ngx_chain_t *cl; | |
| 721 | |
| 509 | 722 if (u->reinit_request(r) != NGX_OK) { |
| 723 return NGX_ERROR; | |
| 724 } | |
| 725 | |
| 726 ngx_memzero(&r->upstream->headers_in, | |
| 727 sizeof(ngx_http_upstream_headers_in_t)); | |
| 728 | |
| 729 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, | |
| 591 | 730 sizeof(ngx_table_elt_t)) |
| 731 != NGX_OK) | |
| 509 | 732 { |
| 733 return NGX_ERROR; | |
| 479 | 734 } |
| 735 | |
| 736 /* reinit the request chain */ | |
| 577 | 737 |
| 509 | 738 for (cl = u->request_bufs; cl; cl = cl->next) { |
| 479 | 739 cl->buf->pos = cl->buf->start; |
| 740 cl->buf->file_pos = 0; | |
| 741 } | |
| 742 | |
| 509 | 743 /* reinit the subrequest's ngx_output_chain() context */ |
| 744 | |
| 573 | 745 if (r->request_body && r->request_body->temp_file |
| 597 | 746 && r != r->main && u->output.buf) |
| 573 | 747 { |
| 748 u->output.free = ngx_alloc_chain_link(r->pool); | |
| 749 if (u->output.free == NULL) { | |
| 750 return NGX_ERROR; | |
| 509 | 751 } |
| 573 | 752 |
| 753 u->output.free->buf = u->output.buf; | |
| 754 u->output.free->next = NULL; | |
| 755 | |
| 756 u->output.buf->pos = u->output.buf->start; | |
| 757 u->output.buf->last = u->output.buf->start; | |
| 509 | 758 } |
| 479 | 759 |
| 760 u->output.buf = NULL; | |
| 761 u->output.in = NULL; | |
| 762 u->output.busy = NULL; | |
| 577 | 763 |
| 581 | 764 /* reinit u->buffer */ |
| 577 | 765 |
| 479 | 766 #if 0 |
| 767 if (u->cache) { | |
| 581 | 768 u->buffer.pos = u->buffer.start + u->cache->ctx.header_size; |
| 769 u->buffer.last = u->buffer.pos; | |
| 479 | 770 |
| 771 } else { | |
| 581 | 772 u->buffer.pos = u->buffer.start; |
| 773 u->buffer.last = u->buffer.start; | |
| 479 | 774 } |
| 775 #else | |
| 509 | 776 |
| 581 | 777 u->buffer.pos = u->buffer.start; |
| 778 u->buffer.last = u->buffer.start; | |
| 509 | 779 |
| 479 | 780 #endif |
| 781 | |
| 509 | 782 return NGX_OK; |
| 479 | 783 } |
| 784 | |
| 785 | |
| 487 | 786 static void |
| 787 ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 479 | 788 { |
|
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parents:
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diff
changeset
|
789 ngx_int_t rc; |
| 483 | 790 ngx_connection_t *c; |
| 577 | 791 |
| 479 | 792 c = u->peer.connection; |
| 793 | |
| 794 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 795 "http upstream send request"); | |
| 796 | |
|
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changeset
|
797 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) { |
| 1166 | 798 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
|
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changeset
|
799 return; |
| 479 | 800 } |
| 801 | |
| 483 | 802 c->log->action = "sending request to upstream"; |
| 479 | 803 |
| 509 | 804 rc = ngx_output_chain(&u->output, u->request_sent ? NULL : u->request_bufs); |
| 479 | 805 |
| 806 u->request_sent = 1; | |
| 807 | |
| 808 if (rc == NGX_ERROR) { | |
| 809 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 810 return; | |
| 811 } | |
| 812 | |
| 813 if (c->write->timer_set) { | |
| 814 ngx_del_timer(c->write); | |
| 815 } | |
| 816 | |
| 817 if (rc == NGX_AGAIN) { | |
| 818 ngx_add_timer(c->write, u->conf->send_timeout); | |
| 819 | |
| 820 if (ngx_handle_write_event(c->write, u->conf->send_lowat) == NGX_ERROR) | |
| 821 { | |
| 822 ngx_http_upstream_finalize_request(r, u, | |
| 823 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 824 return; | |
| 825 } | |
| 826 | |
| 827 return; | |
| 828 } | |
| 829 | |
| 830 /* rc == NGX_OK */ | |
| 831 | |
| 832 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) { | |
| 833 if (ngx_tcp_push(c->fd) == NGX_ERROR) { | |
| 834 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno, | |
| 835 ngx_tcp_push_n " failed"); | |
| 836 ngx_http_upstream_finalize_request(r, u, | |
| 837 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 577 | 838 return; |
| 479 | 839 } |
| 840 | |
| 841 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET; | |
| 842 } | |
| 577 | 843 |
| 479 | 844 ngx_add_timer(c->read, u->conf->read_timeout); |
| 845 | |
| 846 #if 1 | |
| 847 if (c->read->ready) { | |
| 577 | 848 |
| 479 | 849 /* post aio operation */ |
| 850 | |
| 851 /* | |
| 852 * TODO comment | |
| 853 * although we can post aio operation just in the end | |
| 854 * of ngx_http_upstream_connect() CHECK IT !!! | |
| 855 * it's better to do here because we postpone header buffer allocation | |
| 856 */ | |
| 857 | |
| 858 ngx_http_upstream_process_header(c->read); | |
| 859 return; | |
| 860 } | |
| 861 #endif | |
| 862 | |
| 509 | 863 c->write->handler = ngx_http_upstream_dummy_handler; |
| 479 | 864 |
| 509 | 865 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) { |
| 479 | 866 ngx_http_upstream_finalize_request(r, u, |
| 867 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 868 return; | |
| 869 } | |
| 870 } | |
| 871 | |
| 872 | |
| 487 | 873 static void |
| 874 ngx_http_upstream_send_request_handler(ngx_event_t *wev) | |
| 479 | 875 { |
| 876 ngx_connection_t *c; | |
| 877 ngx_http_request_t *r; | |
| 878 ngx_http_upstream_t *u; | |
| 879 | |
| 880 c = wev->data; | |
| 881 r = c->data; | |
| 882 u = r->upstream; | |
| 883 | |
| 884 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
| 885 "http upstream send request handler"); | |
| 886 | |
| 887 if (wev->timedout) { | |
| 888 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
| 889 return; | |
| 890 } | |
| 891 | |
| 591 | 892 #if (NGX_HTTP_SSL) |
| 893 | |
| 894 if (u->conf->ssl && c->ssl == NULL) { | |
| 895 ngx_http_upstream_ssl_init_connection(r, u, c); | |
| 896 return; | |
| 897 } | |
| 898 | |
| 899 #endif | |
| 900 | |
| 651 | 901 if (u->header_sent) { |
| 902 wev->handler = ngx_http_upstream_dummy_handler; | |
| 903 | |
| 904 (void) ngx_handle_write_event(wev, 0); | |
| 905 | |
| 906 return; | |
| 907 } | |
| 908 | |
| 479 | 909 ngx_http_upstream_send_request(r, u); |
| 910 } | |
| 911 | |
| 912 | |
| 487 | 913 static void |
| 914 ngx_http_upstream_process_header(ngx_event_t *rev) | |
| 479 | 915 { |
| 515 | 916 ssize_t n; |
| 917 ngx_int_t rc; | |
| 573 | 918 ngx_str_t *uri, args; |
| 649 | 919 ngx_uint_t i, flags; |
| 515 | 920 ngx_list_part_t *part; |
| 921 ngx_table_elt_t *h; | |
| 922 ngx_connection_t *c; | |
| 923 ngx_http_request_t *r; | |
| 924 ngx_http_upstream_t *u; | |
| 925 ngx_http_err_page_t *err_page; | |
| 926 ngx_http_core_loc_conf_t *clcf; | |
| 927 ngx_http_upstream_header_t *hh; | |
| 928 ngx_http_upstream_main_conf_t *umcf; | |
| 479 | 929 |
| 930 c = rev->data; | |
| 931 r = c->data; | |
| 932 u = r->upstream; | |
| 933 | |
| 934 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, | |
| 483 | 935 "http upstream process header"); |
| 479 | 936 |
| 483 | 937 c->log->action = "reading response header from upstream"; |
| 479 | 938 |
| 939 if (rev->timedout) { | |
| 940 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
| 941 return; | |
| 942 } | |
| 577 | 943 |
|
1153
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|
944 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) { |
| 1166 | 945 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
|
1153
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|
946 return; |
|
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separate ngx_http_upstream_test_connect() and
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1143
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|
947 } |
|
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diff
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|
948 |
| 581 | 949 if (u->buffer.start == NULL) { |
| 950 u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size); | |
| 951 if (u->buffer.start == NULL) { | |
| 479 | 952 ngx_http_upstream_finalize_request(r, u, |
| 953 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 954 return; | |
| 955 } | |
| 956 | |
| 581 | 957 u->buffer.pos = u->buffer.start; |
| 958 u->buffer.last = u->buffer.start; | |
| 959 u->buffer.end = u->buffer.start + u->conf->buffer_size; | |
| 960 u->buffer.temporary = 1; | |
| 961 | |
| 962 u->buffer.tag = u->output.tag; | |
| 479 | 963 |
| 509 | 964 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, |
| 581 | 965 sizeof(ngx_table_elt_t)) |
| 966 != NGX_OK) | |
| 509 | 967 { |
| 968 ngx_http_upstream_finalize_request(r, u, | |
| 969 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 970 return; | |
| 971 } | |
| 972 | |
| 479 | 973 #if 0 |
| 974 if (u->cache) { | |
| 581 | 975 u->buffer.pos += u->cache->ctx.header_size; |
| 976 u->buffer.last = u->buffer.pos; | |
| 479 | 977 } |
| 978 #endif | |
| 979 } | |
| 980 | |
| 1709 | 981 n = c->recv(c, u->buffer.last, u->buffer.end - u->buffer.last); |
| 479 | 982 |
| 983 if (n == NGX_AGAIN) { | |
| 984 #if 0 | |
| 985 ngx_add_timer(rev, u->read_timeout); | |
| 986 #endif | |
| 987 | |
| 988 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 989 ngx_http_upstream_finalize_request(r, u, | |
| 990 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 991 return; | |
| 992 } | |
| 993 | |
| 994 return; | |
| 995 } | |
| 996 | |
| 997 if (n == 0) { | |
| 998 ngx_log_error(NGX_LOG_ERR, rev->log, 0, | |
| 999 "upstream prematurely closed connection"); | |
| 1000 } | |
| 1001 | |
| 1002 if (n == NGX_ERROR || n == 0) { | |
| 1003 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 1004 return; | |
| 1005 } | |
| 1006 | |
| 581 | 1007 u->buffer.last += n; |
| 479 | 1008 |
| 1009 #if 0 | |
| 1010 u->valid_header_in = 0; | |
| 1011 | |
| 1012 u->peer.cached = 0; | |
| 1013 #endif | |
| 1014 | |
| 1015 rc = u->process_header(r); | |
| 1016 | |
| 1017 if (rc == NGX_AGAIN) { | |
| 1018 #if 0 | |
| 1019 ngx_add_timer(rev, u->read_timeout); | |
| 1020 #endif | |
| 1021 | |
| 581 | 1022 if (u->buffer.pos == u->buffer.end) { |
| 479 | 1023 ngx_log_error(NGX_LOG_ERR, rev->log, 0, |
| 1024 "upstream sent too big header"); | |
| 1025 | |
| 1026 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
| 1027 return; | |
| 1028 } | |
| 1029 | |
| 1030 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 1031 ngx_http_upstream_finalize_request(r, u, | |
| 1032 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1033 return; | |
| 1034 } | |
| 1035 | |
| 1036 return; | |
| 1037 } | |
| 1038 | |
| 1039 if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) { | |
| 1040 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
| 1041 return; | |
| 1042 } | |
| 1043 | |
| 1044 if (rc == NGX_ERROR || rc == NGX_HTTP_INTERNAL_SERVER_ERROR) { | |
| 1045 ngx_http_upstream_finalize_request(r, u, | |
| 1046 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1047 return; | |
| 1048 } | |
| 1049 | |
| 1050 /* rc == NGX_OK */ | |
| 1051 | |
|
777
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1052 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
|
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|
1053 && r->subrequest_in_memory) |
|
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|
1054 { |
|
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|
1055 u->buffer.last = u->buffer.pos; |
|
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|
1056 } |
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|
1057 |
| 529 | 1058 if (u->headers_in.status_n == NGX_HTTP_INTERNAL_SERVER_ERROR) { |
| 509 | 1059 |
| 1060 if (u->peer.tries > 1 | |
| 1061 && (u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
| 1062 { | |
| 1063 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_500); | |
| 1064 return; | |
| 1065 } | |
| 1066 | |
| 1067 #if (NGX_HTTP_CACHE) | |
| 1068 | |
| 1069 if (u->peer.tries == 0 | |
| 1070 && u->stale | |
| 1071 && (u->conf->use_stale & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
| 1072 { | |
| 1073 ngx_http_upstream_finalize_request(r, u, | |
| 529 | 1074 ngx_http_send_cached_response(r)); |
| 509 | 1075 return; |
| 1076 } | |
| 1077 | |
| 1078 #endif | |
| 1079 } | |
| 1080 | |
| 597 | 1081 if (u->headers_in.status_n == NGX_HTTP_NOT_FOUND) { |
| 1082 | |
| 1083 if (u->peer.tries > 1 | |
| 1084 && u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_404) | |
| 1085 { | |
| 1086 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_404); | |
| 1087 return; | |
| 1088 } | |
| 1089 | |
| 675 | 1090 if (u->conf->intercept_404) { |
| 1091 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_NOT_FOUND); | |
| 597 | 1092 return; |
| 1093 } | |
| 509 | 1094 } |
| 1095 | |
| 1096 | |
| 529 | 1097 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
| 675 | 1098 && u->conf->intercept_errors) |
| 487 | 1099 { |
| 1100 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 1101 | |
| 1102 if (clcf->error_pages) { | |
| 1103 | |
| 1104 err_page = clcf->error_pages->elts; | |
| 1105 for (i = 0; i < clcf->error_pages->nelts; i++) { | |
| 529 | 1106 if (err_page[i].status == (ngx_int_t) u->headers_in.status_n) { |
| 1107 | |
| 1108 if (u->headers_in.status_n == NGX_HTTP_UNAUTHORIZED) { | |
| 1109 | |
| 1110 r->headers_out.www_authenticate = | |
| 1111 ngx_list_push(&r->headers_out.headers); | |
| 1112 | |
| 1113 if (r->headers_out.www_authenticate == NULL) { | |
| 1114 ngx_http_upstream_finalize_request(r, u, | |
| 1115 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1116 return; | |
| 1117 } | |
| 1118 | |
| 577 | 1119 *r->headers_out.www_authenticate = |
| 529 | 1120 *u->headers_in.www_authenticate; |
| 1121 } | |
| 1122 | |
| 487 | 1123 ngx_http_upstream_finalize_request(r, u, |
| 529 | 1124 u->headers_in.status_n); |
| 487 | 1125 return; |
| 1126 } | |
| 1127 } | |
| 1128 } | |
| 1129 } | |
| 1130 | |
| 681 | 1131 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); |
| 1132 | |
| 515 | 1133 if (r->upstream->headers_in.x_accel_redirect) { |
|
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parents:
756
diff
changeset
|
1134 |
| 515 | 1135 ngx_http_upstream_finalize_request(r, u, NGX_DECLINED); |
| 1136 | |
| 1137 part = &r->upstream->headers_in.headers.part; | |
| 1138 h = part->elts; | |
| 1139 | |
| 1140 for (i = 0; /* void */; i++) { | |
| 1141 | |
| 1142 if (i >= part->nelts) { | |
| 1143 if (part->next == NULL) { | |
| 1144 break; | |
| 1145 } | |
| 577 | 1146 |
| 515 | 1147 part = part->next; |
| 1148 h = part->elts; | |
| 1149 i = 0; | |
| 1150 } | |
| 1151 | |
| 649 | 1152 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, |
| 1153 h[i].lowcase_key, h[i].key.len); | |
| 1154 | |
| 1155 if (hh && hh->redirect) { | |
| 1156 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
|
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|
1157 ngx_http_finalize_request(r, |
|
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parents:
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diff
changeset
|
1158 NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 515 | 1159 return; |
| 1160 } | |
| 1161 } | |
| 1162 } | |
| 1163 | |
| 573 | 1164 uri = &r->upstream->headers_in.x_accel_redirect->value; |
| 1165 args.len = 0; | |
| 1166 args.data = NULL; | |
| 1167 flags = 0; | |
| 1168 | |
| 1169 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) { | |
|
757
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parents:
756
diff
changeset
|
1170 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND); |
| 573 | 1171 return; |
| 1172 } | |
| 1173 | |
| 1174 if (flags & NGX_HTTP_ZERO_IN_URI) { | |
| 1175 r->zero_in_uri = 1; | |
| 1176 } | |
| 1177 | |
| 653 | 1178 if (r->method != NGX_HTTP_HEAD) { |
| 1179 r->method = NGX_HTTP_GET; | |
| 1180 } | |
| 1181 | |
| 573 | 1182 ngx_http_internal_redirect(r, uri, &args); |
| 515 | 1183 return; |
| 1184 } | |
| 1185 | |
| 509 | 1186 part = &r->upstream->headers_in.headers.part; |
| 1187 h = part->elts; | |
| 1188 | |
| 1189 for (i = 0; /* void */; i++) { | |
| 479 | 1190 |
| 509 | 1191 if (i >= part->nelts) { |
| 1192 if (part->next == NULL) { | |
| 1193 break; | |
| 1194 } | |
| 577 | 1195 |
| 509 | 1196 part = part->next; |
| 1197 h = part->elts; | |
| 1198 i = 0; | |
| 1199 } | |
| 1200 | |
| 649 | 1201 if (ngx_hash_find(&u->conf->hide_headers_hash, h[i].hash, |
| 1202 h[i].lowcase_key, h[i].key.len)) | |
| 509 | 1203 { |
| 649 | 1204 continue; |
| 1205 } | |
| 1206 | |
| 1207 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, | |
| 1208 h[i].lowcase_key, h[i].key.len); | |
| 1209 | |
| 1210 if (hh) { | |
| 1211 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
| 509 | 1212 ngx_http_upstream_finalize_request(r, u, |
| 1213 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1214 return; | |
| 1215 } | |
| 1216 | |
| 1217 continue; | |
| 1218 } | |
| 1219 | |
| 1220 if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) { | |
| 1221 ngx_http_upstream_finalize_request(r, u, | |
| 1222 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1223 return; | |
| 1224 } | |
| 1225 } | |
| 1226 | |
| 649 | 1227 if (r->headers_out.server && r->headers_out.server->value.data == NULL) { |
| 1228 r->headers_out.server->hash = 0; | |
| 1229 } | |
| 1230 | |
| 1231 if (r->headers_out.date && r->headers_out.date->value.data == NULL) { | |
| 1232 r->headers_out.date->hash = 0; | |
| 1233 } | |
| 1234 | |
| 529 | 1235 r->headers_out.status = u->headers_in.status_n; |
| 1236 r->headers_out.status_line = u->headers_in.status_line; | |
| 1237 | |
| 581 | 1238 if (r->headers_out.content_length_n != -1) { |
| 1239 u->length = (size_t) r->headers_out.content_length_n; | |
| 1240 | |
| 1241 } else { | |
| 1242 u->length = NGX_MAX_SIZE_T_VALUE; | |
| 1243 } | |
| 1244 | |
|
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|
1245 if (!r->subrequest_in_memory) { |
|
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|
1246 ngx_http_upstream_send_response(r, u); |
|
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1247 return; |
|
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|
1248 } |
|
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|
1249 |
|
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|
1250 /* subrequest content in memory */ |
|
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1251 |
|
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|
1252 if (u->input_filter == NULL) { |
|
4ab852b691f5
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1253 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; |
|
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1254 u->input_filter = ngx_http_upstream_non_buffered_filter; |
|
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1255 u->input_filter_ctx = r; |
|
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1256 } |
|
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|
1257 |
|
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|
1258 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { |
|
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|
1259 ngx_http_upstream_finalize_request(r, u, |
|
4ab852b691f5
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|
1260 NGX_HTTP_INTERNAL_SERVER_ERROR); |
|
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|
1261 return; |
|
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|
1262 } |
|
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|
1263 |
|
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|
1264 if (u->buffer.last - u->buffer.pos >= (ssize_t) u->length) { |
|
4ab852b691f5
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|
1265 if (u->input_filter(u->input_filter_ctx, 0) == NGX_ERROR) { |
|
4ab852b691f5
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diff
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|
1266 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1267 return; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1268 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1269 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1270 ngx_http_upstream_finalize_request(r, u, 0); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1271 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1272 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1273 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1274 rev->handler = ngx_http_upstream_process_body_in_memory; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1275 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1276 ngx_http_upstream_process_body_in_memory(rev); |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1277 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1278 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1279 |
|
1153
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1280 static ngx_int_t |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1281 ngx_http_upstream_test_connect(ngx_connection_t *c) |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1282 { |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1283 int err; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1284 socklen_t len; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1285 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1286 #if (NGX_HAVE_KQUEUE) |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1287 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1288 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
| 1166 | 1289 if (c->write->pending_eof) { |
| 1528 | 1290 c->log->action = "connecting to upstream"; |
| 1166 | 1291 (void) ngx_connection_error(c, c->write->kq_errno, |
| 1292 "kevent() reported that connect() failed"); | |
| 1293 return NGX_ERROR; | |
| 1294 } | |
|
1153
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1295 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1296 } else |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1297 #endif |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1298 { |
| 1166 | 1299 err = 0; |
| 1300 len = sizeof(int); | |
| 1301 | |
| 1302 /* | |
| 1303 * BSDs and Linux return 0 and set a pending error in err | |
| 1304 * Solaris returns -1 and sets errno | |
| 1305 */ | |
| 1306 | |
| 1307 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len) | |
| 1308 == -1) | |
| 1309 { | |
| 1310 err = ngx_errno; | |
| 1311 } | |
| 1312 | |
| 1313 if (err) { | |
| 1528 | 1314 c->log->action = "connecting to upstream"; |
| 1166 | 1315 (void) ngx_connection_error(c, err, "connect() failed"); |
| 1316 return NGX_ERROR; | |
| 1317 } | |
|
1153
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1318 } |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1319 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1320 return NGX_OK; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1321 } |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1322 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1323 |
|
777
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1324 static void |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1325 ngx_http_upstream_process_body_in_memory(ngx_event_t *rev) |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1326 { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1327 size_t size; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1328 ssize_t n; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1329 ngx_buf_t *b; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1330 ngx_connection_t *c; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1331 ngx_http_request_t *r; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1332 ngx_http_upstream_t *u; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1333 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1334 c = rev->data; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1335 r = c->data; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1336 u = r->upstream; |
|
4ab852b691f5
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parents:
757
diff
changeset
|
1337 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1338 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1339 "http upstream process body on memory"); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
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parents:
757
diff
changeset
|
1340 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1341 if (rev->timedout) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1342 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
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parents:
757
diff
changeset
|
1343 ngx_http_upstream_finalize_request(r, u, NGX_ETIMEDOUT); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1344 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1345 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1346 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1347 b = &u->buffer; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1348 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1349 for ( ;; ) { |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
1350 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1351 size = b->end - b->last; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1352 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1353 if (size == 0) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1354 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1355 "upstream buffer is too small to read repsonse"); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1356 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1357 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1358 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1359 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1360 n = c->recv(c, b->last, size); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1361 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1362 if (n == NGX_AGAIN) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1363 break; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1364 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1365 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1366 if (n == 0 || n == NGX_ERROR) { |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1367 ngx_http_upstream_finalize_request(r, u, n); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1368 return; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1369 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1370 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1371 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1372 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1373 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1374 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1375 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1376 if (!rev->ready) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1377 break; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1378 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1379 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1380 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1381 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1382 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1383 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1384 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1385 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1386 if (rev->active) { |
|
4ab852b691f5
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parents:
757
diff
changeset
|
1387 ngx_add_timer(rev, u->conf->read_timeout); |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1388 |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1389 } else if (rev->timer_set) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1390 ngx_del_timer(rev); |
|
4ab852b691f5
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parents:
757
diff
changeset
|
1391 } |
| 681 | 1392 } |
| 1393 | |
| 1394 | |
| 1395 static void | |
| 1396 ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 1397 { | |
| 1398 int tcp_nodelay; | |
| 1399 ssize_t size; | |
| 1400 ngx_int_t rc; | |
| 1401 ngx_event_pipe_t *p; | |
| 1402 ngx_connection_t *c; | |
| 1403 ngx_pool_cleanup_t *cl; | |
| 1404 ngx_pool_cleanup_file_t *clf; | |
| 1405 ngx_http_core_loc_conf_t *clcf; | |
| 1406 | |
| 509 | 1407 rc = ngx_http_send_header(r); |
| 479 | 1408 |
|
1031
bf1785dfb75f
allow the upstream modules to send a header only
Igor Sysoev <igor@sysoev.ru>
parents:
906
diff
changeset
|
1409 if (rc == NGX_ERROR || rc > NGX_OK || r->post_action || r->header_only) { |
| 485 | 1410 ngx_http_upstream_finalize_request(r, u, rc); |
| 479 | 1411 return; |
| 1412 } | |
| 1413 | |
| 1414 u->header_sent = 1; | |
| 1415 | |
| 573 | 1416 if (r->request_body && r->request_body->temp_file) { |
| 563 | 1417 for (cl = r->pool->cleanup; cl; cl = cl->next) { |
| 1418 if (cl->handler == ngx_pool_cleanup_file) { | |
| 1419 clf = cl->data; | |
| 1420 | |
| 1421 if (clf->fd == r->request_body->temp_file->file.fd) { | |
| 1422 cl->handler(clf); | |
| 1423 cl->handler = NULL; | |
| 659 | 1424 r->request_body->temp_file->file.fd = NGX_INVALID_FILE; |
| 563 | 1425 break; |
| 1426 } | |
| 1427 } | |
| 1428 } | |
| 1429 } | |
| 1430 | |
| 583 | 1431 c = r->connection; |
| 1432 | |
| 581 | 1433 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
| 1434 | |
| 649 | 1435 if (!u->buffering) { |
| 581 | 1436 |
| 1437 if (u->input_filter == NULL) { | |
| 1438 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; | |
| 1439 u->input_filter = ngx_http_upstream_non_buffered_filter; | |
| 1440 u->input_filter_ctx = r; | |
| 1441 } | |
| 1442 | |
| 1443 u->peer.connection->read->handler = | |
| 1444 ngx_http_upstream_process_non_buffered_body; | |
| 1445 r->write_event_handler = | |
| 1446 ngx_http_upstream_process_non_buffered_downstream; | |
| 1447 | |
| 1448 r->limit_rate = 0; | |
| 1449 | |
| 1450 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { | |
| 1451 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1452 return; | |
| 1453 } | |
| 1454 | |
| 583 | 1455 if (clcf->tcp_nodelay && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) { |
| 1456 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay"); | |
| 1457 | |
| 1458 tcp_nodelay = 1; | |
| 1459 | |
| 1460 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY, | |
| 1461 (const void *) &tcp_nodelay, sizeof(int)) == -1) | |
| 1462 { | |
| 1463 ngx_connection_error(c, ngx_socket_errno, | |
| 1464 "setsockopt(TCP_NODELAY) failed"); | |
| 1465 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1466 return; | |
| 1467 } | |
| 1468 | |
| 1469 c->tcp_nodelay = NGX_TCP_NODELAY_SET; | |
| 1470 } | |
| 1471 | |
| 581 | 1472 size = u->buffer.last - u->buffer.pos; |
| 1473 | |
| 1474 if (size) { | |
| 1475 u->buffer.last = u->buffer.pos; | |
| 1476 | |
| 1477 if (u->input_filter(u->input_filter_ctx, size) == NGX_ERROR) { | |
| 1478 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1479 return; | |
| 1480 } | |
| 1481 | |
| 583 | 1482 ngx_http_upstream_process_non_buffered_body(c->write); |
| 581 | 1483 |
| 1484 } else { | |
| 1485 u->buffer.pos = u->buffer.start; | |
| 1486 u->buffer.last = u->buffer.start; | |
| 1487 | |
| 1488 if (ngx_http_send_special(r, NGX_HTTP_FLUSH) == NGX_ERROR) { | |
| 1489 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1490 return; | |
| 1491 } | |
| 1527 | 1492 |
| 1493 if (u->peer.connection->read->ready) { | |
| 1494 ngx_http_upstream_process_non_buffered_body( | |
| 1495 u->peer.connection->read); | |
| 1496 } | |
| 581 | 1497 } |
| 1498 | |
| 1499 return; | |
| 1500 } | |
| 1501 | |
| 479 | 1502 /* TODO: preallocate event_pipe bufs, look "Content-Length" */ |
| 1503 | |
| 1504 #if 0 | |
| 1505 | |
| 1506 if (u->cache && u->cache->ctx.file.fd != NGX_INVALID_FILE) { | |
| 1507 if (ngx_close_file(u->cache->ctx.file.fd) == NGX_FILE_ERROR) { | |
| 583 | 1508 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
| 479 | 1509 ngx_close_file_n " \"%s\" failed", |
| 1510 u->cache->ctx.file.name.data); | |
| 1511 } | |
| 1512 } | |
| 1513 | |
| 1514 if (u->cachable) { | |
| 581 | 1515 header = (ngx_http_cache_header_t *) u->buffer->start; |
| 479 | 1516 |
| 1517 header->expires = u->cache->ctx.expires; | |
| 1518 header->last_modified = u->cache->ctx.last_modified; | |
| 1519 header->date = u->cache->ctx.date; | |
| 1520 header->length = r->headers_out.content_length_n; | |
| 1521 u->cache->ctx.length = r->headers_out.content_length_n; | |
| 1522 | |
| 1523 header->key_len = u->cache->ctx.key0.len; | |
| 1524 ngx_memcpy(&header->key, u->cache->ctx.key0.data, header->key_len); | |
| 1525 header->key[header->key_len] = LF; | |
| 1526 } | |
| 1527 | |
| 1528 #endif | |
| 1529 | |
| 581 | 1530 p = u->pipe; |
| 479 | 1531 |
| 1532 p->output_filter = (ngx_event_pipe_output_filter_pt) ngx_http_output_filter; | |
| 1533 p->output_ctx = r; | |
| 1534 p->tag = u->output.tag; | |
| 577 | 1535 p->bufs = u->conf->bufs; |
| 479 | 1536 p->busy_size = u->conf->busy_buffers_size; |
| 1537 p->upstream = u->peer.connection; | |
| 583 | 1538 p->downstream = c; |
| 479 | 1539 p->pool = r->pool; |
| 583 | 1540 p->log = c->log; |
| 577 | 1541 |
| 1381 | 1542 p->cachable = u->cachable || u->store; |
| 479 | 1543 |
| 501 | 1544 p->temp_file = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t)); |
| 1545 if (p->temp_file == NULL) { | |
| 479 | 1546 ngx_http_upstream_finalize_request(r, u, 0); |
| 1547 return; | |
| 1548 } | |
| 1549 | |
| 1550 p->temp_file->file.fd = NGX_INVALID_FILE; | |
| 583 | 1551 p->temp_file->file.log = c->log; |
| 479 | 1552 p->temp_file->path = u->conf->temp_path; |
| 1553 p->temp_file->pool = r->pool; | |
| 577 | 1554 |
| 1381 | 1555 if (u->cachable || u->store) { |
| 479 | 1556 p->temp_file->persistent = 1; |
| 1381 | 1557 |
| 479 | 1558 } else { |
| 667 | 1559 p->temp_file->log_level = NGX_LOG_WARN; |
| 479 | 1560 p->temp_file->warn = "an upstream response is buffered " |
| 1561 "to a temporary file"; | |
| 1562 } | |
| 1563 | |
| 1564 p->max_temp_file_size = u->conf->max_temp_file_size; | |
| 1565 p->temp_file_write_size = u->conf->temp_file_write_size; | |
| 1566 | |
| 501 | 1567 p->preread_bufs = ngx_alloc_chain_link(r->pool); |
| 1568 if (p->preread_bufs == NULL) { | |
| 479 | 1569 ngx_http_upstream_finalize_request(r, u, 0); |
| 1570 return; | |
| 1571 } | |
| 1381 | 1572 |
| 581 | 1573 p->preread_bufs->buf = &u->buffer; |
| 479 | 1574 p->preread_bufs->next = NULL; |
| 581 | 1575 u->buffer.recycled = 1; |
| 1576 | |
| 1577 p->preread_size = u->buffer.last - u->buffer.pos; | |
| 479 | 1578 |
| 1579 if (u->cachable) { | |
| 1381 | 1580 |
| 479 | 1581 p->buf_to_file = ngx_calloc_buf(r->pool); |
| 1582 if (p->buf_to_file == NULL) { | |
| 1583 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1584 return; | |
| 1585 } | |
| 1381 | 1586 |
| 581 | 1587 p->buf_to_file->pos = u->buffer.start; |
| 1588 p->buf_to_file->last = u->buffer.pos; | |
| 479 | 1589 p->buf_to_file->temporary = 1; |
| 1590 } | |
| 1591 | |
| 1592 if (ngx_event_flags & NGX_USE_AIO_EVENT) { | |
| 1593 /* the posted aio operation may currupt a shadow buffer */ | |
| 1594 p->single_buf = 1; | |
| 1595 } | |
| 1596 | |
| 1597 /* TODO: p->free_bufs = 0 if use ngx_create_chain_of_bufs() */ | |
| 1598 p->free_bufs = 1; | |
| 1599 | |
| 1600 /* | |
| 581 | 1601 * event_pipe would do u->buffer.last += p->preread_size |
| 479 | 1602 * as though these bytes were read |
| 1603 */ | |
| 581 | 1604 u->buffer.last = u->buffer.pos; |
| 479 | 1605 |
| 1606 if (u->conf->cyclic_temp_file) { | |
| 1607 | |
| 1608 /* | |
| 1609 * we need to disable the use of sendfile() if we use cyclic temp file | |
| 1610 * because the writing a new data may interfere with sendfile() | |
| 1611 * that uses the same kernel file pages (at least on FreeBSD) | |
| 1612 */ | |
| 1613 | |
| 1614 p->cyclic_temp_file = 1; | |
| 583 | 1615 c->sendfile = 0; |
| 479 | 1616 |
| 1617 } else { | |
| 1618 p->cyclic_temp_file = 0; | |
| 1619 } | |
| 1620 | |
| 1621 p->read_timeout = u->conf->read_timeout; | |
| 1622 p->send_timeout = clcf->send_timeout; | |
| 1623 p->send_lowat = clcf->send_lowat; | |
| 1624 | |
| 509 | 1625 u->peer.connection->read->handler = ngx_http_upstream_process_body; |
| 1626 r->write_event_handler = ngx_http_upstream_process_downstream; | |
| 479 | 1627 |
| 1628 ngx_http_upstream_process_body(u->peer.connection->read); | |
| 1629 } | |
| 1630 | |
| 1631 | |
| 487 | 1632 static void |
| 581 | 1633 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r) |
| 1634 { | |
| 1635 ngx_http_upstream_process_non_buffered_body(r->connection->write); | |
| 1636 } | |
| 1637 | |
| 1638 | |
| 1639 static void | |
| 1640 ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev) | |
| 1641 { | |
| 1642 size_t size; | |
| 1643 ssize_t n; | |
| 1644 ngx_buf_t *b; | |
| 583 | 1645 ngx_int_t rc; |
| 581 | 1646 ngx_uint_t do_write; |
| 884 | 1647 ngx_connection_t *c, *downstream, *upstream; |
| 581 | 1648 ngx_http_request_t *r; |
| 1649 ngx_http_upstream_t *u; | |
| 1650 ngx_http_core_loc_conf_t *clcf; | |
| 1651 | |
| 1652 c = ev->data; | |
|
756
d904b5cb3bba
fix building introduced by previous commit
Igor Sysoev <igor@sysoev.ru>
parents:
755
diff
changeset
|
1653 r = c->data; |
|
d904b5cb3bba
fix building introduced by previous commit
Igor Sysoev <igor@sysoev.ru>
parents:
755
diff
changeset
|
1654 u = r->upstream; |
| 581 | 1655 |
| 1656 if (ev->write) { | |
| 1657 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1658 "http upstream process non buffered downstream"); | |
| 1659 c->log->action = "sending to client"; | |
| 1660 | |
| 1661 } else { | |
| 1662 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1663 "http upstream process non buffered upstream"); | |
| 1664 c->log->action = "reading upstream"; | |
| 1665 } | |
| 1666 | |
| 1667 if (ev->timedout) { | |
| 1668 if (ev->write) { | |
| 1669 c->timedout = 1; | |
| 611 | 1670 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
| 1671 | |
| 581 | 1672 } else { |
| 611 | 1673 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
| 581 | 1674 } |
|
755
63b9dc652c3d
finalize nonbuffered request on timeout
Igor Sysoev <igor@sysoev.ru>
parents:
751
diff
changeset
|
1675 |
|
63b9dc652c3d
finalize nonbuffered request on timeout
Igor Sysoev <igor@sysoev.ru>
parents:
751
diff
changeset
|
1676 ngx_http_upstream_finalize_request(r, u, 0); |
|
63b9dc652c3d
finalize nonbuffered request on timeout
Igor Sysoev <igor@sysoev.ru>
parents:
751
diff
changeset
|
1677 return; |
| 581 | 1678 } |
| 1679 | |
| 884 | 1680 downstream = r->connection; |
| 1681 upstream = u->peer.connection; | |
| 581 | 1682 |
| 1683 b = &u->buffer; | |
| 1684 | |
| 1685 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 1686 | |
| 657 | 1687 do_write = ev->write || u->length == 0; |
| 581 | 1688 |
| 1689 for ( ;; ) { | |
| 1690 | |
| 1691 if (do_write) { | |
| 1692 | |
| 1693 if (u->out_bufs || u->busy_bufs) { | |
| 583 | 1694 rc = ngx_http_output_filter(r, u->out_bufs); |
| 1695 | |
| 884 | 1696 if (downstream->destroyed) { |
| 583 | 1697 return; |
| 1698 } | |
| 1699 | |
| 1700 if (rc == NGX_ERROR) { | |
| 581 | 1701 ngx_http_upstream_finalize_request(r, u, 0); |
| 1702 return; | |
| 1703 } | |
| 1704 | |
| 1705 ngx_chain_update_chains(&u->free_bufs, &u->busy_bufs, | |
| 1706 &u->out_bufs, u->output.tag); | |
| 1707 } | |
| 1708 | |
| 1709 if (u->busy_bufs == NULL) { | |
| 1710 | |
| 1711 if (u->length == 0 | |
| 884 | 1712 || upstream->read->eof |
| 1713 || upstream->read->error) | |
| 581 | 1714 { |
| 1715 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1716 return; | |
| 1717 } | |
| 1718 | |
| 1719 b->pos = b->start; | |
| 1720 b->last = b->start; | |
| 1721 } | |
| 1722 } | |
| 1723 | |
| 1724 size = b->end - b->last; | |
| 1725 | |
| 1726 if (size > u->length) { | |
| 1727 size = u->length; | |
| 1728 } | |
| 1729 | |
| 884 | 1730 if (size && upstream->read->ready) { |
| 1731 | |
| 1732 n = upstream->recv(upstream, b->last, size); | |
| 581 | 1733 |
| 1734 if (n == NGX_AGAIN) { | |
| 1735 break; | |
| 1736 } | |
| 1737 | |
| 1738 if (n > 0) { | |
| 1739 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { | |
| 1740 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1741 return; | |
| 1742 } | |
| 1743 } | |
| 1744 | |
| 1745 do_write = 1; | |
| 1746 | |
| 1747 continue; | |
| 1748 } | |
| 1749 | |
| 1750 break; | |
| 1751 } | |
| 1752 | |
| 884 | 1753 if (downstream->data == r) { |
| 1754 if (ngx_handle_write_event(downstream->write, clcf->send_lowat) | |
| 583 | 1755 == NGX_ERROR) |
| 1756 { | |
| 1757 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1758 return; | |
| 1759 } | |
| 581 | 1760 } |
| 1761 | |
|
1063
e2a6ecc5a3ae
a non-active client connection must not closed after send timeout
Igor Sysoev <igor@sysoev.ru>
parents:
1031
diff
changeset
|
1762 if (downstream->write->active && !downstream->write->ready) { |
| 884 | 1763 ngx_add_timer(downstream->write, clcf->send_timeout); |
| 1764 | |
| 1765 } else if (downstream->write->timer_set) { | |
| 1766 ngx_del_timer(downstream->write); | |
| 581 | 1767 } |
| 1768 | |
| 884 | 1769 if (ngx_handle_read_event(upstream->read, 0) == NGX_ERROR) { |
| 581 | 1770 ngx_http_upstream_finalize_request(r, u, 0); |
| 1771 return; | |
| 1772 } | |
| 1773 | |
|
1063
e2a6ecc5a3ae
a non-active client connection must not closed after send timeout
Igor Sysoev <igor@sysoev.ru>
parents:
1031
diff
changeset
|
1774 if (upstream->read->active && !upstream->read->ready) { |
| 884 | 1775 ngx_add_timer(upstream->read, u->conf->read_timeout); |
| 1776 | |
| 1777 } else if (upstream->read->timer_set) { | |
| 1778 ngx_del_timer(upstream->read); | |
| 581 | 1779 } |
| 1780 } | |
| 1781 | |
| 1782 | |
| 1783 static ngx_int_t | |
| 1784 ngx_http_upstream_non_buffered_filter_init(void *data) | |
| 1785 { | |
| 1786 return NGX_OK; | |
| 1787 } | |
| 1788 | |
| 1789 | |
| 1790 static ngx_int_t | |
| 1791 ngx_http_upstream_non_buffered_filter(void *data, ssize_t bytes) | |
| 1792 { | |
| 1793 ngx_http_request_t *r = data; | |
| 1794 | |
| 1795 ngx_buf_t *b; | |
| 1796 ngx_chain_t *cl, **ll; | |
| 1797 ngx_http_upstream_t *u; | |
| 1798 | |
| 1799 u = r->upstream; | |
| 1800 | |
| 1801 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
| 1802 ll = &cl->next; | |
| 1803 } | |
| 1804 | |
| 1805 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
| 1806 if (cl == NULL) { | |
| 1807 return NGX_ERROR; | |
| 1808 } | |
| 1809 | |
| 1810 *ll = cl; | |
| 1811 | |
| 1812 cl->buf->flush = 1; | |
| 1813 cl->buf->memory = 1; | |
| 1814 | |
| 1815 b = &u->buffer; | |
| 1816 | |
| 1817 cl->buf->pos = b->last; | |
| 1818 b->last += bytes; | |
| 1819 cl->buf->last = b->last; | |
| 1820 | |
| 1821 if (u->length == NGX_MAX_SIZE_T_VALUE) { | |
| 1822 return NGX_OK; | |
| 1823 } | |
| 1824 | |
| 1825 u->length -= bytes; | |
| 1826 | |
| 1827 return NGX_OK; | |
| 1828 } | |
| 1829 | |
| 1830 | |
| 1831 static void | |
| 509 | 1832 ngx_http_upstream_process_downstream(ngx_http_request_t *r) |
| 1833 { | |
| 1834 ngx_http_upstream_process_body(r->connection->write); | |
| 1835 } | |
| 1836 | |
| 1837 | |
| 1838 static void | |
| 487 | 1839 ngx_http_upstream_process_body(ngx_event_t *ev) |
| 479 | 1840 { |
| 509 | 1841 ngx_event_pipe_t *p; |
| 583 | 1842 ngx_connection_t *c, *downstream; |
| 1098 | 1843 ngx_http_log_ctx_t *ctx; |
| 479 | 1844 ngx_http_request_t *r; |
| 1845 ngx_http_upstream_t *u; | |
| 1846 | |
| 1847 c = ev->data; | |
| 1848 r = c->data; | |
| 1849 u = r->upstream; | |
| 583 | 1850 downstream = r->connection; |
| 479 | 1851 |
| 1852 if (ev->write) { | |
| 483 | 1853 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1854 "http upstream process downstream"); | |
| 1855 c->log->action = "sending to client"; | |
| 577 | 1856 |
| 479 | 1857 } else { |
| 483 | 1858 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1859 "http upstream process upstream"); | |
| 1860 c->log->action = "reading upstream"; | |
| 1098 | 1861 |
| 1862 ctx = c->log->data; | |
| 1863 ctx->current_request = r; | |
| 479 | 1864 } |
| 577 | 1865 |
| 581 | 1866 p = u->pipe; |
| 479 | 1867 |
| 1868 if (ev->timedout) { | |
| 1869 if (ev->write) { | |
| 527 | 1870 if (ev->delayed) { |
| 1871 | |
| 1872 ev->timedout = 0; | |
| 1873 ev->delayed = 0; | |
| 1874 | |
| 1875 if (!ev->ready) { | |
| 1876 ngx_add_timer(ev, p->send_timeout); | |
| 1877 | |
| 1878 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) | |
| 1879 { | |
| 1880 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1881 return; | |
| 1882 } | |
| 1883 | |
| 1884 return; | |
| 1885 } | |
| 1886 | |
| 1887 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { | |
| 583 | 1888 |
| 1889 if (downstream->destroyed) { | |
| 1890 return; | |
| 1891 } | |
| 1892 | |
| 527 | 1893 ngx_http_upstream_finalize_request(r, u, 0); |
| 1894 return; | |
| 1895 } | |
| 1896 | |
| 1897 } else { | |
| 1898 p->downstream_error = 1; | |
| 577 | 1899 c->timedout = 1; |
| 611 | 1900 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
| 527 | 1901 } |
| 479 | 1902 |
| 1903 } else { | |
| 577 | 1904 p->upstream_error = 1; |
| 611 | 1905 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
| 479 | 1906 } |
| 1907 | |
| 1908 } else { | |
| 527 | 1909 if (ev->write && ev->delayed) { |
| 1910 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1911 "http downstream delayed"); | |
| 1912 | |
| 1913 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) { | |
| 1914 return; | |
| 1915 } | |
| 1916 | |
| 1917 return; | |
| 1918 } | |
| 1919 | |
| 479 | 1920 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { |
| 583 | 1921 |
| 1922 if (downstream->destroyed) { | |
| 1923 return; | |
| 1924 } | |
| 1925 | |
| 479 | 1926 ngx_http_upstream_finalize_request(r, u, 0); |
| 1927 return; | |
| 1928 } | |
| 1929 } | |
| 577 | 1930 |
| 479 | 1931 if (u->peer.connection) { |
| 1932 | |
| 1381 | 1933 if (u->store) { |
| 1934 | |
| 1935 if (p->upstream_eof && u->headers_in.status_n == NGX_HTTP_OK) { | |
| 1936 | |
| 1937 ngx_http_upstream_store(r, u); | |
| 1938 | |
| 1939 } else if ((p->upstream_error | |
| 1940 || (p->upstream_eof | |
| 1941 && u->headers_in.status_n != NGX_HTTP_OK)) | |
| 1942 && u->pipe->temp_file->file.fd != NGX_INVALID_FILE) | |
| 1943 { | |
| 1944 if (ngx_delete_file(u->pipe->temp_file->file.name.data) | |
| 1945 == NGX_FILE_ERROR) | |
| 1946 { | |
| 1947 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno, | |
| 1948 ngx_delete_file_n " \"%s\" failed", | |
| 1949 u->pipe->temp_file->file.name.data); | |
| 1950 } | |
| 1951 } | |
| 1952 } | |
| 1953 | |
| 479 | 1954 #if (NGX_HTTP_FILE_CACHE) |
| 1955 | |
| 1956 if (p->upstream_done && u->cachable) { | |
| 1957 if (ngx_http_cache_update(r) == NGX_ERROR) { | |
| 1958 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1959 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1960 return; | |
| 1961 } | |
| 1962 | |
| 1963 } else if (p->upstream_eof && u->cachable) { | |
| 1964 | |
| 1965 /* TODO: check length & update cache */ | |
| 1966 | |
| 1967 if (ngx_http_cache_update(r) == NGX_ERROR) { | |
| 1968 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1969 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1970 return; | |
| 1971 } | |
| 1972 } | |
| 1973 | |
| 1974 #endif | |
| 1975 | |
| 1976 if (p->upstream_done || p->upstream_eof || p->upstream_error) { | |
| 483 | 1977 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1978 "http upstream exit: %p", p->out); | |
| 479 | 1979 #if 0 |
| 1980 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 1981 #endif | |
| 1982 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1983 return; | |
| 1984 } | |
| 1985 } | |
| 1986 | |
| 1987 if (p->downstream_error) { | |
| 483 | 1988 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1989 "http upstream downstream error"); | |
| 479 | 1990 |
| 1991 if (!u->cachable && u->peer.connection) { | |
| 1992 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1993 } | |
| 1994 } | |
| 1995 } | |
| 1996 | |
| 1997 | |
| 487 | 1998 static void |
| 1381 | 1999 ngx_http_upstream_store(ngx_http_request_t *r, ngx_http_upstream_t *u) |
| 2000 { | |
| 2001 char *failed; | |
| 2002 u_char *name; | |
| 2003 size_t root; | |
| 2004 time_t lm; | |
| 2005 ngx_err_t err; | |
| 2006 ngx_str_t *temp, path, *last_modified; | |
| 2007 ngx_temp_file_t *tf; | |
| 2008 | |
| 2009 if (u->pipe->temp_file->file.fd == NGX_INVALID_FILE) { | |
| 2010 | |
| 2011 /* create file for empty 200 response */ | |
| 2012 | |
| 2013 tf = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t)); | |
| 2014 if (tf == NULL) { | |
| 2015 return; | |
| 2016 } | |
| 2017 | |
| 2018 tf->file.fd = NGX_INVALID_FILE; | |
| 2019 tf->file.log = r->connection->log; | |
| 2020 tf->path = u->conf->temp_path; | |
| 2021 tf->pool = r->pool; | |
| 2022 tf->persistent = 1; | |
| 2023 | |
| 2024 if (ngx_create_temp_file(&tf->file, tf->path, tf->pool, | |
| 2025 tf->persistent, tf->clean, tf->access) | |
| 2026 != NGX_OK) | |
| 2027 { | |
| 2028 return; | |
| 2029 } | |
| 2030 | |
| 2031 u->pipe->temp_file = tf; | |
| 2032 } | |
| 2033 | |
| 2034 temp = &u->pipe->temp_file->file.name; | |
| 2035 | |
| 2036 #if !(NGX_WIN32) | |
| 2037 | |
| 2038 if (ngx_change_file_access(temp->data, u->conf->store_access) | |
| 2039 == NGX_FILE_ERROR) | |
| 2040 { | |
| 2041 err = ngx_errno; | |
| 2042 failed = ngx_change_file_access_n; | |
| 2043 name = temp->data; | |
| 2044 | |
| 2045 goto failed; | |
| 2046 } | |
| 2047 | |
| 2048 #endif | |
| 2049 | |
| 2050 if (r->upstream->headers_in.last_modified) { | |
| 2051 | |
| 2052 last_modified = &r->upstream->headers_in.last_modified->value; | |
| 2053 | |
| 2054 lm = ngx_http_parse_time(last_modified->data, last_modified->len); | |
| 2055 | |
| 2056 if (lm != NGX_ERROR) { | |
| 2057 if (ngx_set_file_time(temp->data, u->pipe->temp_file->file.fd, lm) | |
| 2058 != NGX_OK) | |
| 2059 { | |
| 2060 err = ngx_errno; | |
| 2061 failed = ngx_set_file_time_n; | |
| 2062 name = temp->data; | |
| 2063 | |
| 2064 goto failed; | |
| 2065 } | |
| 2066 } | |
| 2067 } | |
| 2068 | |
| 2069 if (u->conf->store_lengths == NULL) { | |
| 2070 | |
| 2071 ngx_http_map_uri_to_path(r, &path, &root, 0); | |
| 2072 | |
| 2073 } else { | |
| 2074 if (ngx_http_script_run(r, &path, u->conf->store_lengths->elts, 0, | |
| 2075 u->conf->store_values->elts) | |
| 2076 == NULL) | |
| 2077 { | |
| 2078 return; | |
| 2079 } | |
| 2080 } | |
| 2081 | |
| 2082 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2083 "upstream stores \"%s\" to \"%s\"", temp->data, path.data); | |
| 2084 | |
| 2085 failed = ngx_rename_file_n; | |
| 2086 name = path.data; | |
| 2087 | |
| 2088 if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) { | |
| 2089 return; | |
| 2090 } | |
| 2091 | |
| 2092 err = ngx_errno; | |
| 2093 | |
| 2094 if (err == NGX_ENOENT) { | |
| 2095 | |
| 2096 err = ngx_create_full_path(path.data, | |
| 2097 ngx_dir_access(u->conf->store_access)); | |
| 2098 if (err == 0) { | |
| 2099 if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) { | |
| 2100 return; | |
| 2101 } | |
| 2102 | |
| 2103 err = ngx_errno; | |
| 2104 } | |
| 2105 } | |
| 2106 | |
| 2107 #if (NGX_WIN32) | |
| 2108 | |
| 2109 if (err == NGX_EEXIST) { | |
| 2110 if (ngx_win32_rename_file(temp, &path, r->pool) != NGX_ERROR) { | |
| 2111 | |
| 2112 if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) { | |
| 2113 return; | |
| 2114 } | |
| 2115 } | |
| 2116 | |
| 2117 err = ngx_errno; | |
| 2118 } | |
| 2119 | |
| 2120 #endif | |
| 2121 | |
| 2122 failed: | |
| 2123 | |
| 2124 if (ngx_delete_file(temp->data) == NGX_FILE_ERROR) { | |
| 2125 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno, | |
| 2126 ngx_delete_file_n " \"%s\" failed", | |
| 2127 temp->data); | |
| 2128 } | |
| 2129 | |
| 2130 ngx_log_error(NGX_LOG_CRIT, r->connection->log, err, | |
| 2131 "%s \"%s\" failed", failed, name); | |
| 2132 } | |
| 2133 | |
| 2134 | |
| 2135 static void | |
| 487 | 2136 ngx_http_upstream_dummy_handler(ngx_event_t *wev) |
| 479 | 2137 { |
| 2138 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
| 2139 "http upstream dummy handler"); | |
| 2140 } | |
| 2141 | |
| 2142 | |
| 487 | 2143 static void |
| 2144 ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u, | |
| 2145 ngx_uint_t ft_type) | |
| 479 | 2146 { |
| 884 | 2147 ngx_uint_t status, state; |
| 479 | 2148 |
| 2149 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 884 | 2150 "http next upstream, %xi", ft_type); |
| 479 | 2151 |
| 2152 #if 0 | |
| 2153 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 2154 #endif | |
| 2155 | |
| 525 | 2156 if (ft_type == NGX_HTTP_UPSTREAM_FT_HTTP_404) { |
| 884 | 2157 state = NGX_PEER_NEXT; |
| 525 | 2158 } else { |
| 884 | 2159 state = NGX_PEER_FAILED; |
| 479 | 2160 } |
| 525 | 2161 |
| 884 | 2162 u->peer.free(&u->peer, u->peer.data, state); |
| 525 | 2163 |
| 479 | 2164 if (ft_type == NGX_HTTP_UPSTREAM_FT_TIMEOUT) { |
| 2165 ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_ETIMEDOUT, | |
| 2166 "upstream timed out"); | |
| 2167 } | |
| 577 | 2168 |
| 479 | 2169 if (u->peer.cached && ft_type == NGX_HTTP_UPSTREAM_FT_ERROR) { |
| 2170 status = 0; | |
| 2171 | |
| 2172 } else { | |
| 2173 switch(ft_type) { | |
| 2174 | |
| 2175 case NGX_HTTP_UPSTREAM_FT_TIMEOUT: | |
| 2176 status = NGX_HTTP_GATEWAY_TIME_OUT; | |
| 2177 break; | |
| 2178 | |
| 2179 case NGX_HTTP_UPSTREAM_FT_HTTP_500: | |
| 2180 status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 2181 break; | |
| 2182 | |
| 2183 case NGX_HTTP_UPSTREAM_FT_HTTP_404: | |
| 2184 status = NGX_HTTP_NOT_FOUND; | |
| 2185 break; | |
| 2186 | |
| 2187 /* | |
| 2188 * NGX_HTTP_UPSTREAM_FT_BUSY_LOCK and NGX_HTTP_UPSTREAM_FT_MAX_WAITING | |
| 2189 * never reach here | |
| 2190 */ | |
| 2191 | |
| 2192 default: | |
| 2193 status = NGX_HTTP_BAD_GATEWAY; | |
| 2194 } | |
| 2195 } | |
| 2196 | |
| 583 | 2197 if (r->connection->error) { |
| 479 | 2198 ngx_http_upstream_finalize_request(r, u, |
| 2199 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 2200 return; | |
| 2201 } | |
| 2202 | |
| 2203 if (status) { | |
| 2204 u->state->status = status; | |
| 2205 | |
| 525 | 2206 if (u->peer.tries == 0 || !(u->conf->next_upstream & ft_type)) { |
| 479 | 2207 |
| 2208 #if (NGX_HTTP_CACHE) | |
| 2209 | |
| 2210 if (u->stale && (u->conf->use_stale & ft_type)) { | |
| 2211 ngx_http_upstream_finalize_request(r, u, | |
| 525 | 2212 ngx_http_send_cached_response(r)); |
| 479 | 2213 return; |
| 2214 } | |
| 2215 | |
| 2216 #endif | |
| 2217 | |
| 2218 ngx_http_upstream_finalize_request(r, u, status); | |
| 2219 return; | |
| 2220 } | |
| 2221 } | |
| 2222 | |
| 2223 if (u->peer.connection) { | |
| 2224 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2225 "close http upstream connection: %d", | |
| 2226 u->peer.connection->fd); | |
| 577 | 2227 #if (NGX_HTTP_SSL) |
| 884 | 2228 |
| 577 | 2229 if (u->peer.connection->ssl) { |
| 884 | 2230 u->peer.connection->ssl->no_wait_shutdown = 1; |
| 2231 u->peer.connection->ssl->no_send_shutdown = 1; | |
| 2232 | |
| 2233 (void) ngx_ssl_shutdown(u->peer.connection); | |
| 577 | 2234 } |
| 2235 #endif | |
| 884 | 2236 |
| 479 | 2237 ngx_close_connection(u->peer.connection); |
| 2238 } | |
| 2239 | |
| 2240 #if 0 | |
| 2241 if (u->conf->busy_lock && !u->busy_locked) { | |
| 2242 ngx_http_upstream_busy_lock(p); | |
| 2243 return; | |
| 2244 } | |
| 2245 #endif | |
| 2246 | |
| 2247 ngx_http_upstream_connect(r, u); | |
| 2248 } | |
| 2249 | |
| 2250 | |
| 487 | 2251 static void |
| 569 | 2252 ngx_http_upstream_cleanup(void *data) |
| 2253 { | |
| 2254 ngx_http_request_t *r = data; | |
| 2255 | |
| 2256 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2257 "cleanup http upstream request: \"%V\"", &r->uri); | |
| 2258 | |
| 2259 ngx_http_upstream_finalize_request(r, r->upstream, NGX_DONE); | |
| 2260 } | |
| 2261 | |
| 2262 | |
| 2263 static void | |
| 487 | 2264 ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
| 2265 ngx_http_upstream_t *u, ngx_int_t rc) | |
| 479 | 2266 { |
|
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2267 ngx_time_t *tp; |
| 563 | 2268 |
| 483 | 2269 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| 2270 "finalize http upstream request: %i", rc); | |
| 479 | 2271 |
| 569 | 2272 *u->cleanup = NULL; |
| 2273 | |
|
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2274 if (u->state->response_sec) { |
| 563 | 2275 tp = ngx_timeofday(); |
|
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2276 u->state->response_sec = tp->sec - u->state->response_sec; |
|
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2277 u->state->response_msec = tp->msec - u->state->response_msec; |
| 563 | 2278 } |
| 2279 | |
| 479 | 2280 u->finalize_request(r, rc); |
| 2281 | |
| 884 | 2282 u->peer.free(&u->peer, u->peer.data, 0); |
| 2283 | |
| 479 | 2284 if (u->peer.connection) { |
| 884 | 2285 |
| 577 | 2286 #if (NGX_HTTP_SSL) |
| 2287 | |
| 2288 /* TODO: do not shutdown persistent connection */ | |
| 2289 | |
| 2290 if (u->peer.connection->ssl) { | |
| 884 | 2291 |
| 2292 /* | |
| 2293 * We send the "close notify" shutdown alert to the upstream only | |
| 2294 * and do not wait its "close notify" shutdown alert. | |
| 2295 * It is acceptable according to the TLS standard. | |
| 2296 */ | |
| 2297 | |
| 2298 u->peer.connection->ssl->no_wait_shutdown = 1; | |
| 2299 | |
| 2300 (void) ngx_ssl_shutdown(u->peer.connection); | |
| 577 | 2301 } |
| 2302 #endif | |
| 884 | 2303 |
| 2304 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2305 "close http upstream connection: %d", | |
| 2306 u->peer.connection->fd); | |
| 2307 | |
| 479 | 2308 ngx_close_connection(u->peer.connection); |
| 2309 } | |
| 2310 | |
| 483 | 2311 u->peer.connection = NULL; |
| 2312 | |
| 563 | 2313 if (u->header_sent && (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE)) |
| 479 | 2314 { |
| 2315 rc = 0; | |
| 2316 } | |
| 2317 | |
| 581 | 2318 if (u->pipe && u->pipe->temp_file) { |
| 479 | 2319 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| 2320 "http upstream temp fd: %d", | |
| 581 | 2321 u->pipe->temp_file->file.fd); |
| 479 | 2322 } |
| 2323 | |
| 2324 #if 0 | |
| 2325 if (u->cache) { | |
| 2326 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 483 | 2327 "http upstream cache fd: %d", |
| 479 | 2328 u->cache->ctx.file.fd); |
| 2329 } | |
| 2330 #endif | |
| 2331 | |
| 515 | 2332 if (rc == NGX_DECLINED) { |
| 2333 return; | |
| 2334 } | |
| 2335 | |
| 483 | 2336 r->connection->log->action = "sending to client"; |
| 2337 | |
| 1270 | 2338 if (rc == 0) { |
| 2339 if (r == r->main) { | |
| 2340 if (!r->post_action) { | |
| 2341 rc = ngx_http_send_special(r, NGX_HTTP_LAST); | |
| 2342 } | |
| 2343 | |
| 2344 } else { | |
| 2345 if (r->out) { | |
| 2346 rc = NGX_AGAIN; | |
| 2347 } | |
| 2348 } | |
| 479 | 2349 } |
| 2350 | |
| 2351 ngx_http_finalize_request(r, rc); | |
| 2352 } | |
| 2353 | |
| 2354 | |
| 509 | 2355 static ngx_int_t |
| 2356 ngx_http_upstream_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2357 ngx_uint_t offset) | |
| 577 | 2358 { |
| 509 | 2359 ngx_table_elt_t **ph; |
| 577 | 2360 |
| 509 | 2361 ph = (ngx_table_elt_t **) ((char *) &r->upstream->headers_in + offset); |
| 2362 | |
| 2363 if (*ph == NULL) { | |
| 2364 *ph = h; | |
| 2365 } | |
| 2366 | |
| 2367 return NGX_OK; | |
| 2368 } | |
| 2369 | |
| 2370 | |
| 2371 static ngx_int_t | |
| 2372 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
| 2373 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2374 { | |
| 2375 ngx_array_t *pa; | |
| 2376 ngx_table_elt_t **ph; | |
| 2377 | |
| 2378 pa = (ngx_array_t *) ((char *) &r->upstream->headers_in + offset); | |
| 2379 | |
| 2380 if (pa->elts == NULL) { | |
| 2381 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
| 2382 { | |
| 2383 return NGX_ERROR; | |
| 2384 } | |
| 2385 } | |
| 2386 | |
| 2387 ph = ngx_array_push(pa); | |
| 2388 if (ph == NULL) { | |
| 2389 return NGX_ERROR; | |
| 2390 } | |
| 2391 | |
| 2392 *ph = h; | |
| 2393 | |
| 2394 return NGX_OK; | |
| 2395 } | |
| 2396 | |
| 2397 | |
| 2398 static ngx_int_t | |
| 2399 ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2400 ngx_uint_t offset) | |
| 2401 { | |
| 2402 return NGX_OK; | |
| 2403 } | |
| 2404 | |
| 2405 | |
| 2406 static ngx_int_t | |
| 527 | 2407 ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2408 ngx_uint_t offset) | |
| 577 | 2409 { |
| 527 | 2410 ngx_int_t n; |
| 2411 | |
| 2412 r->upstream->headers_in.x_accel_limit_rate = h; | |
| 2413 | |
| 2414 n = ngx_atoi(h->value.data, h->value.len); | |
| 2415 | |
| 2416 if (n != NGX_ERROR) { | |
| 2417 r->limit_rate = (size_t) n; | |
| 2418 } | |
| 2419 | |
| 2420 return NGX_OK; | |
| 2421 } | |
| 2422 | |
| 2423 | |
| 2424 static ngx_int_t | |
| 649 | 2425 ngx_http_upstream_process_buffering(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2426 ngx_uint_t offset) | |
| 2427 { | |
| 2428 u_char c0, c1, c2; | |
| 2429 | |
| 2430 if (r->upstream->conf->change_buffering) { | |
| 2431 | |
| 2432 if (h->value.len == 2) { | |
| 2433 c0 = ngx_tolower(h->value.data[0]); | |
| 2434 c1 = ngx_tolower(h->value.data[1]); | |
| 2435 | |
| 2436 if (c0 == 'n' && c1 == 'o') { | |
| 2437 r->upstream->buffering = 0; | |
| 2438 } | |
| 2439 | |
| 2440 } else if (h->value.len == 3) { | |
| 2441 c0 = ngx_tolower(h->value.data[0]); | |
| 2442 c1 = ngx_tolower(h->value.data[1]); | |
| 2443 c2 = ngx_tolower(h->value.data[2]); | |
| 2444 | |
| 2445 if (c0 == 'y' && c1 == 'e' && c2 == 's') { | |
| 2446 r->upstream->buffering = 1; | |
| 2447 } | |
| 2448 } | |
| 2449 } | |
| 2450 | |
| 2451 return NGX_OK; | |
| 2452 } | |
| 2453 | |
| 2454 | |
| 2455 static ngx_int_t | |
| 657 | 2456 ngx_http_upstream_process_charset(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2457 ngx_uint_t offset) | |
| 2458 { | |
| 2459 r->headers_out.override_charset = &h->value; | |
| 2460 | |
| 2461 return NGX_OK; | |
| 2462 } | |
| 2463 | |
| 2464 | |
| 2465 static ngx_int_t | |
| 509 | 2466 ngx_http_upstream_copy_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2467 ngx_uint_t offset) | |
| 2468 { | |
| 573 | 2469 ngx_table_elt_t *ho, **ph; |
| 509 | 2470 |
| 2471 ho = ngx_list_push(&r->headers_out.headers); | |
| 2472 if (ho == NULL) { | |
| 2473 return NGX_ERROR; | |
| 2474 } | |
| 2475 | |
| 2476 *ho = *h; | |
| 2477 | |
| 573 | 2478 if (offset) { |
| 2479 ph = (ngx_table_elt_t **) ((char *) &r->headers_out + offset); | |
| 2480 *ph = ho; | |
| 2481 } | |
| 2482 | |
| 509 | 2483 return NGX_OK; |
| 2484 } | |
| 2485 | |
| 2486 | |
| 2487 static ngx_int_t | |
| 2488 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r, | |
| 2489 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2490 { | |
| 2491 ngx_array_t *pa; | |
| 2492 ngx_table_elt_t *ho, **ph; | |
| 2493 | |
| 2494 pa = (ngx_array_t *) ((char *) &r->headers_out + offset); | |
| 2495 | |
| 2496 if (pa->elts == NULL) { | |
| 2497 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
| 2498 { | |
| 2499 return NGX_ERROR; | |
| 2500 } | |
| 2501 } | |
| 2502 | |
| 2503 ph = ngx_array_push(pa); | |
| 2504 if (ph == NULL) { | |
| 2505 return NGX_ERROR; | |
| 2506 } | |
| 2507 | |
| 2508 ho = ngx_list_push(&r->headers_out.headers); | |
| 2509 if (ho == NULL) { | |
| 2510 return NGX_ERROR; | |
| 2511 } | |
| 2512 | |
| 2513 *ho = *h; | |
| 2514 *ph = ho; | |
| 2515 | |
| 2516 return NGX_OK; | |
| 2517 } | |
| 2518 | |
| 2519 | |
| 2520 static ngx_int_t | |
| 2521 ngx_http_upstream_copy_content_type(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2522 ngx_uint_t offset) | |
| 2523 { | |
| 657 | 2524 u_char *p, *last; |
| 2525 | |
| 2526 r->headers_out.content_type_len = h->value.len; | |
| 509 | 2527 r->headers_out.content_type = h->value; |
| 2528 | |
| 657 | 2529 for (p = h->value.data; *p; p++) { |
| 2530 | |
| 2531 if (*p != ';') { | |
| 2532 continue; | |
| 2533 } | |
| 2534 | |
| 2535 last = p; | |
| 2536 | |
| 2537 while (*++p == ' ') { /* void */ } | |
| 2538 | |
|
1107
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
1098
diff
changeset
|
2539 if (ngx_strncasecmp(p, (u_char *) "charset=", 8) != 0) { |
| 657 | 2540 continue; |
| 2541 } | |
| 2542 | |
| 2543 p += 8; | |
| 2544 | |
| 2545 r->headers_out.content_type_len = last - h->value.data; | |
| 2546 | |
| 2547 r->headers_out.charset.len = h->value.data + h->value.len - p; | |
| 2548 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
|
2549 |
|
c6c42497106c
fix segfault if upstream sends trailing ";" in "charset="
Igor Sysoev <igor@sysoev.ru>
parents:
1109
diff
changeset
|
2550 return NGX_OK; |
| 657 | 2551 } |
| 2552 | |
| 509 | 2553 return NGX_OK; |
| 2554 } | |
| 2555 | |
| 2556 | |
| 2557 static ngx_int_t | |
| 2558 ngx_http_upstream_copy_content_length(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2559 ngx_uint_t offset) | |
| 2560 { | |
| 2561 ngx_table_elt_t *ho; | |
| 2562 | |
| 2563 ho = ngx_list_push(&r->headers_out.headers); | |
| 2564 if (ho == NULL) { | |
| 2565 return NGX_ERROR; | |
| 2566 } | |
| 2567 | |
| 2568 *ho = *h; | |
| 2569 | |
| 2570 r->headers_out.content_length = ho; | |
| 2571 r->headers_out.content_length_n = ngx_atoof(h->value.data, h->value.len); | |
| 2572 | |
| 2573 return NGX_OK; | |
| 2574 } | |
| 2575 | |
| 2576 | |
| 2577 static ngx_int_t | |
| 2578 ngx_http_upstream_rewrite_location(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2579 ngx_uint_t offset) | |
| 2580 { | |
| 2581 ngx_int_t rc; | |
| 2582 ngx_table_elt_t *ho; | |
| 2583 | |
| 2584 ho = ngx_list_push(&r->headers_out.headers); | |
| 2585 if (ho == NULL) { | |
| 2586 return NGX_ERROR; | |
| 2587 } | |
| 2588 | |
| 2589 *ho = *h; | |
| 2590 | |
| 2591 if (r->upstream->rewrite_redirect) { | |
| 2592 rc = r->upstream->rewrite_redirect(r, ho, 0); | |
| 2593 | |
| 529 | 2594 if (rc == NGX_DECLINED) { |
| 2595 return NGX_OK; | |
| 2596 } | |
| 2597 | |
| 509 | 2598 if (rc == NGX_OK) { |
| 2599 r->headers_out.location = ho; | |
| 2600 | |
| 2601 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2602 "rewritten location: \"%V\"", &ho->value); | |
| 2603 } | |
| 2604 | |
| 2605 return rc; | |
| 2606 } | |
| 2607 | |
| 2608 /* | |
| 2609 * we do not set r->headers_out.location here to avoid the handling | |
| 2610 * the local redirects without a host name by ngx_http_header_filter() | |
| 2611 */ | |
| 2612 | |
| 2613 return NGX_OK; | |
| 2614 } | |
| 2615 | |
| 2616 | |
| 2617 static ngx_int_t | |
| 2618 ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2619 ngx_uint_t offset) | |
| 2620 { | |
| 2621 u_char *p; | |
| 2622 ngx_int_t rc; | |
| 2623 ngx_table_elt_t *ho; | |
| 2624 | |
| 2625 ho = ngx_list_push(&r->headers_out.headers); | |
| 2626 if (ho == NULL) { | |
| 2627 return NGX_ERROR; | |
| 2628 } | |
| 2629 | |
| 2630 *ho = *h; | |
| 2631 | |
| 2632 if (r->upstream->rewrite_redirect) { | |
| 2633 | |
|
1611
d5db0e96bcc6
r1542, r1543, r1544, r1549, r1550, r1551, r1555 merge:
Igor Sysoev <igor@sysoev.ru>
parents:
1533
diff
changeset
|
2634 p = ngx_strcasestrn(ho->value.data, "url=", 4 - 1); |
| 509 | 2635 |
| 2636 if (p) { | |
| 2637 rc = r->upstream->rewrite_redirect(r, ho, p + 4 - ho->value.data); | |
| 2638 | |
| 2639 } else { | |
| 2640 return NGX_OK; | |
| 2641 } | |
| 2642 | |
| 529 | 2643 if (rc == NGX_DECLINED) { |
| 2644 return NGX_OK; | |
| 2645 } | |
| 2646 | |
| 509 | 2647 #if (NGX_DEBUG) |
| 2648 if (rc == NGX_OK) { | |
| 2649 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2650 "rewritten refresh: \"%V\"", &ho->value); | |
| 2651 } | |
| 2652 #endif | |
| 2653 | |
| 2654 return rc; | |
| 2655 } | |
| 2656 | |
| 2657 return NGX_OK; | |
| 2658 } | |
| 2659 | |
| 2660 | |
| 2661 #if (NGX_HTTP_GZIP) | |
| 2662 | |
| 2663 static ngx_int_t | |
| 2664 ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
| 2665 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2666 { | |
| 2667 ngx_table_elt_t *ho; | |
| 2668 | |
| 2669 ho = ngx_list_push(&r->headers_out.headers); | |
| 2670 if (ho == NULL) { | |
| 2671 return NGX_ERROR; | |
| 2672 } | |
| 2673 | |
| 2674 *ho = *h; | |
| 2675 | |
| 2676 r->headers_out.content_encoding = ho; | |
| 2677 | |
| 2678 return NGX_OK; | |
| 2679 } | |
| 2680 | |
| 2681 #endif | |
| 2682 | |
| 2683 | |
| 487 | 2684 static ngx_int_t |
| 573 | 2685 ngx_http_upstream_add_variables(ngx_conf_t *cf) |
| 479 | 2686 { |
| 880 | 2687 ngx_http_variable_t *var, *v; |
| 479 | 2688 |
| 573 | 2689 for (v = ngx_http_upstream_vars; v->name.len; v++) { |
| 2690 var = ngx_http_add_variable(cf, &v->name, v->flags); | |
| 2691 if (var == NULL) { | |
| 2692 return NGX_ERROR; | |
| 2693 } | |
| 2694 | |
| 637 | 2695 var->get_handler = v->get_handler; |
| 573 | 2696 var->data = v->data; |
| 2697 } | |
| 2698 | |
| 479 | 2699 return NGX_OK; |
| 2700 } | |
| 509 | 2701 |
| 2702 | |
| 573 | 2703 static ngx_int_t |
| 1181 | 2704 ngx_http_upstream_addr_variable(ngx_http_request_t *r, |
| 2705 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2706 { | |
| 2707 u_char *p; | |
| 2708 size_t len; | |
| 2709 ngx_uint_t i; | |
| 2710 ngx_http_upstream_state_t *state; | |
| 2711 | |
| 2712 v->valid = 1; | |
| 2713 v->no_cachable = 0; | |
| 2714 v->not_found = 0; | |
| 2715 | |
| 2716 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) { | |
| 2717 v->not_found = 1; | |
| 2718 return NGX_OK; | |
| 2719 } | |
| 2720 | |
| 2721 len = 0; | |
| 2722 state = r->upstream_states->elts; | |
| 2723 | |
| 2724 for (i = 0; i < r->upstream_states->nelts; i++) { | |
| 2725 if (state[i].peer) { | |
| 2726 len += state[i].peer->len + 2; | |
| 2727 | |
| 2728 } else { | |
| 2729 len += 3; | |
| 2730 } | |
| 2731 } | |
| 2732 | |
| 2733 p = ngx_palloc(r->pool, len); | |
| 2734 if (p == NULL) { | |
| 2735 return NGX_ERROR; | |
| 2736 } | |
| 2737 | |
| 2738 v->data = p; | |
| 2739 | |
| 2740 i = 0; | |
| 2741 | |
| 2742 for ( ;; ) { | |
| 2743 if (state[i].peer) { | |
| 2744 p = ngx_cpymem(p, state[i].peer->data, state[i].peer->len); | |
| 2745 } | |
| 2746 | |
| 2747 if (++i == r->upstream_states->nelts) { | |
| 2748 break; | |
| 2749 } | |
| 2750 | |
| 2751 if (state[i].peer) { | |
| 2752 *p++ = ','; | |
| 2753 *p++ = ' '; | |
| 2754 | |
| 2755 } else { | |
| 2756 *p++ = ' '; | |
| 2757 *p++ = ':'; | |
| 2758 *p++ = ' '; | |
| 2759 | |
| 2760 if (++i == r->upstream_states->nelts) { | |
| 2761 break; | |
| 2762 } | |
| 2763 | |
| 2764 continue; | |
| 2765 } | |
| 2766 } | |
| 2767 | |
| 2768 v->len = p - v->data; | |
| 2769 | |
| 2770 return NGX_OK; | |
| 2771 } | |
| 2772 | |
| 2773 | |
| 2774 static ngx_int_t | |
| 573 | 2775 ngx_http_upstream_status_variable(ngx_http_request_t *r, |
| 2776 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2777 { | |
| 2778 u_char *p; | |
| 2779 size_t len; | |
| 2780 ngx_uint_t i; | |
| 2781 ngx_http_upstream_state_t *state; | |
| 2782 | |
| 2783 v->valid = 1; | |
| 2784 v->no_cachable = 0; | |
| 2785 v->not_found = 0; | |
| 2786 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2787 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) { |
| 573 | 2788 v->not_found = 1; |
| 2789 return NGX_OK; | |
| 2790 } | |
| 2791 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2792 len = r->upstream_states->nelts * (3 + 2); |
| 573 | 2793 |
| 2794 p = ngx_palloc(r->pool, len); | |
| 2795 if (p == NULL) { | |
| 2796 return NGX_ERROR; | |
| 2797 } | |
| 2798 | |
| 2799 v->data = p; | |
| 2800 | |
| 2801 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
|
2802 state = r->upstream_states->elts; |
| 573 | 2803 |
| 2804 for ( ;; ) { | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2805 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
|
2806 p = ngx_sprintf(p, "%ui", state[i].status); |
| 573 | 2807 |
| 2808 } else { | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2809 *p++ = '-'; |
| 573 | 2810 } |
| 2811 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2812 if (++i == r->upstream_states->nelts) { |
| 573 | 2813 break; |
| 2814 } | |
| 2815 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2816 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
|
2817 *p++ = ','; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2818 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2819 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2820 } else { |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2821 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2822 *p++ = ':'; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2823 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2824 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2825 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
|
2826 break; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2827 } |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2828 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2829 continue; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2830 } |
| 573 | 2831 } |
| 2832 | |
| 2833 v->len = p - v->data; | |
| 2834 | |
| 2835 return NGX_OK; | |
| 2836 } | |
| 2837 | |
| 2838 | |
| 2839 static ngx_int_t | |
| 2840 ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
| 2841 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2842 { | |
| 2843 u_char *p; | |
| 2844 size_t len; | |
| 2845 ngx_uint_t i; | |
|
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2846 ngx_msec_int_t ms; |
| 573 | 2847 ngx_http_upstream_state_t *state; |
| 2848 | |
| 2849 v->valid = 1; | |
| 2850 v->no_cachable = 0; | |
| 2851 v->not_found = 0; | |
| 2852 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2853 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) { |
| 573 | 2854 v->not_found = 1; |
| 2855 return NGX_OK; | |
| 2856 } | |
| 2857 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2858 len = r->upstream_states->nelts * (NGX_TIME_T_LEN + 4 + 2); |
| 573 | 2859 |
| 2860 p = ngx_palloc(r->pool, len); | |
| 2861 if (p == NULL) { | |
| 2862 return NGX_ERROR; | |
| 2863 } | |
| 2864 | |
| 2865 v->data = p; | |
| 2866 | |
| 2867 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
|
2868 state = r->upstream_states->elts; |
| 573 | 2869 |
| 2870 for ( ;; ) { | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2871 if (state[i].status) { |
|
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2872 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
|
2873 ms = (ms >= 0) ? ms : 0; |
|
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2874 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
|
2875 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2876 } else { |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2877 *p++ = '-'; |
| 573 | 2878 } |
| 2879 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2880 if (++i == r->upstream_states->nelts) { |
| 573 | 2881 break; |
| 2882 } | |
| 2883 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2884 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
|
2885 *p++ = ','; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2886 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2887 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2888 } else { |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2889 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2890 *p++ = ':'; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2891 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2892 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2893 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
|
2894 break; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2895 } |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2896 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2897 continue; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2898 } |
| 573 | 2899 } |
| 2900 | |
| 2901 v->len = p - v->data; | |
| 2902 | |
| 2903 return NGX_OK; | |
| 2904 } | |
| 2905 | |
| 2906 | |
| 1162 | 2907 ngx_int_t |
| 2908 ngx_http_upstream_header_variable(ngx_http_request_t *r, | |
| 2909 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2910 { | |
| 2911 if (r->upstream == NULL) { | |
| 2912 v->not_found = 1; | |
| 2913 return NGX_OK; | |
| 2914 } | |
| 2915 | |
| 2916 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, | |
| 2917 &r->upstream->headers_in.headers.part, | |
| 2918 sizeof("upstream_http_") - 1); | |
| 2919 } | |
| 2920 | |
| 2921 | |
| 651 | 2922 static char * |
| 2923 ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy) | |
| 2924 { | |
| 884 | 2925 char *rv; |
| 2926 void *mconf; | |
| 2927 ngx_str_t *value; | |
| 2928 ngx_url_t u; | |
| 2929 ngx_uint_t m; | |
| 2930 ngx_conf_t pcf; | |
| 2931 ngx_http_module_t *module; | |
| 2932 ngx_http_conf_ctx_t *ctx, *http_ctx; | |
| 2933 ngx_http_upstream_srv_conf_t *uscf; | |
| 2934 | |
| 2935 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 2936 | |
| 2937 value = cf->args->elts; | |
| 2938 u.host = value[1]; | |
| 2939 u.no_resolve = 1; | |
| 2940 | |
| 2941 uscf = ngx_http_upstream_add(cf, &u, NGX_HTTP_UPSTREAM_CREATE | |
| 2942 |NGX_HTTP_UPSTREAM_WEIGHT | |
| 2943 |NGX_HTTP_UPSTREAM_MAX_FAILS | |
| 2944 |NGX_HTTP_UPSTREAM_FAIL_TIMEOUT | |
| 2945 |NGX_HTTP_UPSTREAM_DOWN | |
| 2946 |NGX_HTTP_UPSTREAM_BACKUP); | |
| 2947 if (uscf == NULL) { | |
| 2948 return NGX_CONF_ERROR; | |
| 2949 } | |
| 2950 | |
| 651 | 2951 |
| 2952 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); | |
| 2953 if (ctx == NULL) { | |
| 2954 return NGX_CONF_ERROR; | |
| 2955 } | |
| 2956 | |
| 884 | 2957 http_ctx = cf->ctx; |
| 2958 ctx->main_conf = http_ctx->main_conf; | |
| 651 | 2959 |
| 2960 /* the upstream{}'s srv_conf */ | |
| 2961 | |
| 2962 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 2963 if (ctx->srv_conf == NULL) { | |
| 2964 return NGX_CONF_ERROR; | |
| 2965 } | |
| 2966 | |
| 2967 ctx->srv_conf[ngx_http_upstream_module.ctx_index] = uscf; | |
| 2968 | |
| 884 | 2969 uscf->srv_conf = ctx->srv_conf; |
| 2970 | |
| 651 | 2971 |
| 2972 /* the upstream{}'s loc_conf */ | |
| 2973 | |
| 2974 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 2975 if (ctx->loc_conf == NULL) { | |
| 2976 return NGX_CONF_ERROR; | |
| 2977 } | |
| 2978 | |
| 2979 for (m = 0; ngx_modules[m]; m++) { | |
| 2980 if (ngx_modules[m]->type != NGX_HTTP_MODULE) { | |
| 2981 continue; | |
| 2982 } | |
| 2983 | |
| 2984 module = ngx_modules[m]->ctx; | |
| 2985 | |
| 884 | 2986 if (module->create_srv_conf) { |
| 2987 mconf = module->create_srv_conf(cf); | |
| 2988 if (mconf == NULL) { | |
| 2989 return NGX_CONF_ERROR; | |
| 2990 } | |
| 2991 | |
| 2992 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf; | |
| 2993 } | |
| 2994 | |
| 651 | 2995 if (module->create_loc_conf) { |
| 2996 mconf = module->create_loc_conf(cf); | |
| 2997 if (mconf == NULL) { | |
| 2998 return NGX_CONF_ERROR; | |
| 2999 } | |
| 3000 | |
| 3001 ctx->loc_conf[ngx_modules[m]->ctx_index] = mconf; | |
| 3002 } | |
| 3003 } | |
| 3004 | |
| 3005 | |
| 3006 /* parse inside upstream{} */ | |
| 3007 | |
| 3008 pcf = *cf; | |
| 3009 cf->ctx = ctx; | |
| 3010 cf->cmd_type = NGX_HTTP_UPS_CONF; | |
| 3011 | |
| 3012 rv = ngx_conf_parse(cf, NULL); | |
| 3013 | |
| 3014 *cf = pcf; | |
| 3015 | |
| 3016 if (rv != NGX_CONF_OK) { | |
| 3017 return rv; | |
| 3018 } | |
| 3019 | |
| 3020 if (uscf->servers == NULL) { | |
| 3021 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 3022 "no servers are inside upstream"); | |
| 3023 return NGX_CONF_ERROR; | |
| 3024 } | |
| 3025 | |
| 3026 return rv; | |
| 3027 } | |
| 3028 | |
| 3029 | |
| 3030 static char * | |
| 3031 ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 3032 { | |
| 3033 ngx_http_upstream_srv_conf_t *uscf = conf; | |
| 3034 | |
| 884 | 3035 time_t fail_timeout; |
| 3036 ngx_str_t *value, s; | |
| 3037 ngx_url_t u; | |
| 3038 ngx_int_t weight, max_fails; | |
| 3039 ngx_uint_t i; | |
| 3040 ngx_http_upstream_server_t *us; | |
| 651 | 3041 |
| 3042 if (uscf->servers == NULL) { | |
| 884 | 3043 uscf->servers = ngx_array_create(cf->pool, 4, |
| 3044 sizeof(ngx_http_upstream_server_t)); | |
| 651 | 3045 if (uscf->servers == NULL) { |
| 3046 return NGX_CONF_ERROR; | |
| 3047 } | |
| 3048 } | |
| 3049 | |
| 884 | 3050 us = ngx_array_push(uscf->servers); |
| 3051 if (us == NULL) { | |
| 651 | 3052 return NGX_CONF_ERROR; |
| 3053 } | |
| 3054 | |
| 884 | 3055 ngx_memzero(us, sizeof(ngx_http_upstream_server_t)); |
| 3056 | |
| 651 | 3057 value = cf->args->elts; |
| 3058 | |
| 3059 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 3060 | |
| 3061 u.url = value[1]; | |
| 906 | 3062 u.default_port = 80; |
| 651 | 3063 |
| 3064 if (ngx_parse_url(cf, &u) != NGX_OK) { | |
| 3065 if (u.err) { | |
| 3066 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 3067 "%s in upstream \"%V\"", u.err, &u.url); | |
| 3068 } | |
| 3069 | |
| 3070 return NGX_CONF_ERROR; | |
| 3071 } | |
| 3072 | |
| 663 | 3073 weight = 1; |
| 884 | 3074 max_fails = 1; |
| 3075 fail_timeout = 10; | |
| 3076 | |
| 3077 for (i = 2; i < cf->args->nelts; i++) { | |
| 3078 | |
| 3079 if (ngx_strncmp(value[i].data, "weight=", 7) == 0) { | |
| 3080 | |
| 3081 if (!(uscf->flags & NGX_HTTP_UPSTREAM_WEIGHT)) { | |
| 3082 goto invalid; | |
| 3083 } | |
| 3084 | |
| 3085 weight = ngx_atoi(&value[i].data[7], value[i].len - 7); | |
| 663 | 3086 |
| 3087 if (weight == NGX_ERROR || weight == 0) { | |
| 3088 goto invalid; | |
| 3089 } | |
| 3090 | |
| 884 | 3091 continue; |
| 3092 } | |
| 3093 | |
| 3094 if (ngx_strncmp(value[i].data, "max_fails=", 10) == 0) { | |
| 3095 | |
| 3096 if (!(uscf->flags & NGX_HTTP_UPSTREAM_MAX_FAILS)) { | |
| 3097 goto invalid; | |
| 3098 } | |
| 3099 | |
| 3100 max_fails = ngx_atoi(&value[i].data[10], value[i].len - 10); | |
| 3101 | |
| 3102 if (max_fails == NGX_ERROR) { | |
| 3103 goto invalid; | |
| 3104 } | |
| 3105 | |
| 3106 continue; | |
| 663 | 3107 } |
| 884 | 3108 |
| 3109 if (ngx_strncmp(value[i].data, "fail_timeout=", 13) == 0) { | |
| 3110 | |
| 3111 if (!(uscf->flags & NGX_HTTP_UPSTREAM_FAIL_TIMEOUT)) { | |
| 3112 goto invalid; | |
| 3113 } | |
| 3114 | |
| 3115 s.len = value[i].len - 13; | |
| 3116 s.data = &value[i].data[13]; | |
| 3117 | |
| 3118 fail_timeout = ngx_parse_time(&s, 1); | |
| 3119 | |
| 3120 if (fail_timeout < 0) { | |
| 3121 goto invalid; | |
| 3122 } | |
| 3123 | |
| 3124 continue; | |
| 3125 } | |
| 3126 | |
| 3127 if (ngx_strncmp(value[i].data, "down", 4) == 0) { | |
| 3128 | |
| 3129 if (!(uscf->flags & NGX_HTTP_UPSTREAM_DOWN)) { | |
| 3130 goto invalid; | |
| 3131 } | |
| 3132 | |
| 3133 us->down = 1; | |
| 3134 | |
| 3135 continue; | |
| 3136 } | |
| 3137 | |
| 3138 goto invalid; | |
| 663 | 3139 } |
| 3140 | |
| 884 | 3141 us->addrs = u.addrs; |
| 3142 us->naddrs = u.naddrs; | |
| 3143 us->weight = weight; | |
| 3144 us->max_fails = max_fails; | |
| 3145 us->fail_timeout = fail_timeout; | |
| 651 | 3146 |
| 3147 return NGX_CONF_OK; | |
| 663 | 3148 |
| 3149 invalid: | |
| 3150 | |
| 884 | 3151 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 3152 "invalid parameter \"%V\"", &value[i]); | |
| 663 | 3153 |
| 3154 return NGX_CONF_ERROR; | |
| 651 | 3155 } |
| 3156 | |
| 3157 | |
| 3158 ngx_http_upstream_srv_conf_t * | |
| 884 | 3159 ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags) |
| 651 | 3160 { |
| 3161 ngx_uint_t i; | |
| 884 | 3162 ngx_http_upstream_server_t *us; |
| 651 | 3163 ngx_http_upstream_srv_conf_t *uscf, **uscfp; |
| 3164 ngx_http_upstream_main_conf_t *umcf; | |
| 3165 | |
| 884 | 3166 if (!(flags & NGX_HTTP_UPSTREAM_CREATE)) { |
| 3167 | |
| 651 | 3168 if (ngx_parse_url(cf, u) != NGX_OK) { |
| 3169 if (u->err) { | |
| 3170 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 3171 "%s in upstream \"%V\"", u->err, &u->url); | |
| 3172 } | |
| 3173 | |
| 3174 return NULL; | |
| 3175 } | |
| 3176 } | |
| 3177 | |
| 3178 umcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_upstream_module); | |
| 3179 | |
| 3180 uscfp = umcf->upstreams.elts; | |
| 3181 | |
| 3182 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
| 906 | 3183 |
| 3184 if (uscfp[i]->host.len != u->host.len | |
| 884 | 3185 || ngx_strncasecmp(uscfp[i]->host.data, u->host.data, u->host.len) |
| 3186 != 0) | |
| 3187 { | |
| 651 | 3188 continue; |
| 3189 } | |
| 3190 | |
| 884 | 3191 if ((flags & NGX_HTTP_UPSTREAM_CREATE) |
| 3192 && (uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE)) | |
| 651 | 3193 { |
| 884 | 3194 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 3195 "duplicate upstream \"%V\"", &u->host); | |
| 3196 return NULL; | |
| 651 | 3197 } |
| 884 | 3198 |
| 906 | 3199 if ((uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE) && u->port) { |
| 884 | 3200 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
| 906 | 3201 "upstream \"%V\" may not have port %d", |
| 3202 &u->host, u->port); | |
| 3203 return NULL; | |
| 3204 } | |
| 3205 | |
| 3206 if ((flags & NGX_HTTP_UPSTREAM_CREATE) && uscfp[i]->port) { | |
| 3207 ngx_log_error(NGX_LOG_WARN, cf->log, 0, | |
| 3208 "upstream \"%V\" may not have port %d in %s:%ui", | |
| 3209 &u->host, uscfp[i]->port, | |
| 1533 | 3210 uscfp[i]->file_name, uscfp[i]->line); |
| 906 | 3211 return NULL; |
| 3212 } | |
| 3213 | |
| 3214 if (uscfp[i]->port != u->port) { | |
| 3215 continue; | |
| 884 | 3216 } |
| 3217 | |
| 1504 | 3218 if (uscfp[i]->default_port && u->default_port |
| 3219 && uscfp[i]->default_port != u->default_port) | |
| 3220 { | |
| 3221 continue; | |
| 3222 } | |
| 3223 | |
| 884 | 3224 return uscfp[i]; |
| 651 | 3225 } |
| 3226 | |
| 3227 uscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_srv_conf_t)); | |
| 3228 if (uscf == NULL) { | |
| 3229 return NULL; | |
| 3230 } | |
| 3231 | |
| 884 | 3232 uscf->flags = flags; |
| 651 | 3233 uscf->host = u->host; |
| 1533 | 3234 uscf->file_name = cf->conf_file->file.name.data; |
| 651 | 3235 uscf->line = cf->conf_file->line; |
| 906 | 3236 uscf->port = u->port; |
| 3237 uscf->default_port = u->default_port; | |
| 884 | 3238 |
| 3239 if (u->naddrs == 1) { | |
| 3240 uscf->servers = ngx_array_create(cf->pool, 1, | |
| 3241 sizeof(ngx_http_upstream_server_t)); | |
| 3242 if (uscf->servers == NULL) { | |
| 3243 return NGX_CONF_ERROR; | |
| 3244 } | |
| 3245 | |
| 3246 us = ngx_array_push(uscf->servers); | |
| 3247 if (us == NULL) { | |
| 3248 return NGX_CONF_ERROR; | |
| 3249 } | |
| 3250 | |
| 3251 ngx_memzero(us, sizeof(ngx_http_upstream_server_t)); | |
| 3252 | |
| 3253 us->addrs = u->addrs; | |
| 3254 us->naddrs = u->naddrs; | |
| 3255 } | |
| 651 | 3256 |
| 3257 uscfp = ngx_array_push(&umcf->upstreams); | |
| 3258 if (uscfp == NULL) { | |
| 3259 return NULL; | |
| 3260 } | |
| 3261 | |
| 3262 *uscfp = uscf; | |
| 3263 | |
| 3264 return uscf; | |
| 3265 } | |
| 3266 | |
| 3267 | |
| 509 | 3268 static void * |
| 3269 ngx_http_upstream_create_main_conf(ngx_conf_t *cf) | |
| 3270 { | |
| 3271 ngx_http_upstream_main_conf_t *umcf; | |
| 3272 | |
| 3273 umcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_main_conf_t)); | |
| 3274 if (umcf == NULL) { | |
| 3275 return NULL; | |
| 3276 } | |
| 3277 | |
| 651 | 3278 if (ngx_array_init(&umcf->upstreams, cf->pool, 4, |
| 3279 sizeof(ngx_http_upstream_srv_conf_t *)) | |
| 3280 != NGX_OK) | |
| 3281 { | |
| 3282 return NGX_CONF_ERROR; | |
| 3283 } | |
| 3284 | |
| 509 | 3285 return umcf; |
| 3286 } | |
| 3287 | |
| 3288 | |
| 3289 static char * | |
| 651 | 3290 ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf) |
| 509 | 3291 { |
| 3292 ngx_http_upstream_main_conf_t *umcf = conf; | |
| 3293 | |
| 651 | 3294 ngx_uint_t i; |
| 3295 ngx_array_t headers_in; | |
| 3296 ngx_hash_key_t *hk; | |
| 3297 ngx_hash_init_t hash; | |
| 884 | 3298 ngx_http_upstream_init_pt init; |
| 651 | 3299 ngx_http_upstream_header_t *header; |
| 3300 ngx_http_upstream_srv_conf_t **uscfp; | |
| 3301 | |
| 3302 uscfp = umcf->upstreams.elts; | |
| 3303 | |
| 3304 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
| 884 | 3305 |
| 3306 init = uscfp[i]->peer.init_upstream ? uscfp[i]->peer.init_upstream: | |
| 3307 ngx_http_upstream_init_round_robin; | |
| 3308 | |
| 3309 if (init(cf, uscfp[i]) != NGX_OK) { | |
| 651 | 3310 return NGX_CONF_ERROR; |
| 3311 } | |
| 3312 } | |
| 649 | 3313 |
| 663 | 3314 |
| 884 | 3315 /* upstream_headers_in_hash */ |
| 3316 | |
| 649 | 3317 if (ngx_array_init(&headers_in, cf->temp_pool, 32, sizeof(ngx_hash_key_t)) |
| 3318 != NGX_OK) | |
| 509 | 3319 { |
| 3320 return NGX_CONF_ERROR; | |
| 3321 } | |
| 3322 | |
| 649 | 3323 for (header = ngx_http_upstream_headers_in; header->name.len; header++) { |
| 3324 hk = ngx_array_push(&headers_in); | |
| 3325 if (hk == NULL) { | |
| 3326 return NGX_CONF_ERROR; | |
| 3327 } | |
| 3328 | |
| 3329 hk->key = header->name; | |
| 3330 hk->key_hash = ngx_hash_key_lc(header->name.data, header->name.len); | |
| 3331 hk->value = header; | |
| 3332 } | |
| 3333 | |
| 3334 hash.hash = &umcf->headers_in_hash; | |
| 3335 hash.key = ngx_hash_key_lc; | |
| 3336 hash.max_size = 512; | |
|
751
bae59a740c40
align hash bucket size to cache line
Igor Sysoev <igor@sysoev.ru>
parents:
750
diff
changeset
|
3337 hash.bucket_size = ngx_align(64, ngx_cacheline_size); |
| 649 | 3338 hash.name = "upstream_headers_in_hash"; |
| 3339 hash.pool = cf->pool; | |
| 3340 hash.temp_pool = NULL; | |
| 3341 | |
| 3342 if (ngx_hash_init(&hash, headers_in.elts, headers_in.nelts) != NGX_OK) { | |
| 3343 return NGX_CONF_ERROR; | |
| 3344 } | |
| 509 | 3345 |
| 3346 return NGX_CONF_OK; | |
| 3347 } |