Mercurial > hg > nginx
annotate src/http/ngx_http_upstream.c @ 1683:1e0b028055ec
allow to use IP addresses without defined resolver
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Mon, 03 Dec 2007 10:05:19 +0000 |
| parents | 13f8dec720b5 |
| children | f4eb04fd8579 |
| 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 | |
| 1658 | 12 static void ngx_http_upstream_resolve_handler(ngx_resolver_ctx_t *ctx); |
| 509 | 13 static void ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r); |
| 14 static void ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r); | |
| 15 static void ngx_http_upstream_check_broken_connection(ngx_http_request_t *r, | |
| 16 ngx_event_t *ev); | |
| 479 | 17 static void ngx_http_upstream_connect(ngx_http_request_t *r, |
| 487 | 18 ngx_http_upstream_t *u); |
| 509 | 19 static ngx_int_t ngx_http_upstream_reinit(ngx_http_request_t *r, |
| 487 | 20 ngx_http_upstream_t *u); |
| 479 | 21 static void ngx_http_upstream_send_request(ngx_http_request_t *r, |
| 487 | 22 ngx_http_upstream_t *u); |
| 479 | 23 static void ngx_http_upstream_send_request_handler(ngx_event_t *wev); |
| 24 static void ngx_http_upstream_process_header(ngx_event_t *rev); | |
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25 static ngx_int_t ngx_http_upstream_test_connect(ngx_connection_t *c); |
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<!--#include virtual=... set=... -->
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26 static void ngx_http_upstream_process_body_in_memory(ngx_event_t *rev); |
| 479 | 27 static void ngx_http_upstream_send_response(ngx_http_request_t *r, |
| 487 | 28 ngx_http_upstream_t *u); |
| 581 | 29 static void |
| 30 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r); | |
| 31 static void ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev); | |
| 32 static ngx_int_t ngx_http_upstream_non_buffered_filter_init(void *data); | |
| 33 static ngx_int_t ngx_http_upstream_non_buffered_filter(void *data, | |
| 34 ssize_t bytes); | |
| 509 | 35 static void ngx_http_upstream_process_downstream(ngx_http_request_t *r); |
| 479 | 36 static void ngx_http_upstream_process_body(ngx_event_t *ev); |
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37 static void ngx_http_upstream_store(ngx_http_request_t *r, |
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38 ngx_http_upstream_t *u); |
| 479 | 39 static void ngx_http_upstream_dummy_handler(ngx_event_t *wev); |
| 40 static void ngx_http_upstream_next(ngx_http_request_t *r, | |
| 487 | 41 ngx_http_upstream_t *u, ngx_uint_t ft_type); |
| 569 | 42 static void ngx_http_upstream_cleanup(void *data); |
| 479 | 43 static void ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
| 487 | 44 ngx_http_upstream_t *u, ngx_int_t rc); |
| 479 | 45 |
| 509 | 46 static ngx_int_t ngx_http_upstream_process_header_line(ngx_http_request_t *r, |
| 47 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 48 static ngx_int_t | |
| 49 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
| 50 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 51 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, | |
| 52 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 527 | 53 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, |
| 54 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 649 | 55 static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r, |
| 509 | 56 ngx_table_elt_t *h, ngx_uint_t offset); |
| 657 | 57 static ngx_int_t ngx_http_upstream_process_charset(ngx_http_request_t *r, |
| 58 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 649 | 59 static ngx_int_t ngx_http_upstream_copy_header_line(ngx_http_request_t *r, |
| 509 | 60 ngx_table_elt_t *h, ngx_uint_t offset); |
| 61 static ngx_int_t | |
| 62 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r, | |
| 63 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 64 static ngx_int_t ngx_http_upstream_copy_content_type(ngx_http_request_t *r, | |
| 65 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 66 static ngx_int_t ngx_http_upstream_copy_content_length(ngx_http_request_t *r, | |
| 67 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 68 static ngx_int_t ngx_http_upstream_rewrite_location(ngx_http_request_t *r, | |
| 69 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 70 static ngx_int_t ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, | |
| 71 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 72 #if (NGX_HTTP_GZIP) | |
| 73 static ngx_int_t ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
| 74 ngx_table_elt_t *h, ngx_uint_t offset); | |
| 75 #endif | |
| 76 | |
| 573 | 77 static ngx_int_t ngx_http_upstream_add_variables(ngx_conf_t *cf); |
| 1181 | 78 static ngx_int_t ngx_http_upstream_addr_variable(ngx_http_request_t *r, |
| 79 ngx_http_variable_value_t *v, uintptr_t data); | |
| 573 | 80 static ngx_int_t ngx_http_upstream_status_variable(ngx_http_request_t *r, |
| 81 ngx_http_variable_value_t *v, uintptr_t data); | |
| 82 static ngx_int_t ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
| 83 ngx_http_variable_value_t *v, uintptr_t data); | |
| 84 | |
| 651 | 85 static char *ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy); |
| 86 static char *ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 87 void *conf); | |
| 88 | |
| 509 | 89 static void *ngx_http_upstream_create_main_conf(ngx_conf_t *cf); |
| 651 | 90 static char *ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf); |
| 509 | 91 |
| 577 | 92 #if (NGX_HTTP_SSL) |
| 591 | 93 static void ngx_http_upstream_ssl_init_connection(ngx_http_request_t *, |
| 94 ngx_http_upstream_t *u, ngx_connection_t *c); | |
| 577 | 95 static void ngx_http_upstream_ssl_handshake(ngx_connection_t *c); |
| 96 #endif | |
| 97 | |
| 509 | 98 |
| 99 ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = { | |
| 100 | |
| 101 { ngx_string("Status"), | |
| 102 ngx_http_upstream_process_header_line, | |
| 103 offsetof(ngx_http_upstream_headers_in_t, status), | |
| 649 | 104 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 509 | 105 |
| 106 { ngx_string("Content-Type"), | |
| 107 ngx_http_upstream_process_header_line, | |
| 108 offsetof(ngx_http_upstream_headers_in_t, content_type), | |
| 673 | 109 ngx_http_upstream_copy_content_type, 0, 1 }, |
| 509 | 110 |
| 111 { ngx_string("Content-Length"), | |
| 112 ngx_http_upstream_process_header_line, | |
| 113 offsetof(ngx_http_upstream_headers_in_t, content_length), | |
| 515 | 114 ngx_http_upstream_copy_content_length, 0, 0 }, |
| 509 | 115 |
| 116 { ngx_string("Date"), | |
| 117 ngx_http_upstream_process_header_line, | |
| 118 offsetof(ngx_http_upstream_headers_in_t, date), | |
| 649 | 119 ngx_http_upstream_copy_header_line, |
| 120 offsetof(ngx_http_headers_out_t, date), 0 }, | |
| 509 | 121 |
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122 { ngx_string("Last-Modified"), |
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123 ngx_http_upstream_process_header_line, |
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124 offsetof(ngx_http_upstream_headers_in_t, last_modified), |
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125 ngx_http_upstream_copy_header_line, |
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126 offsetof(ngx_http_headers_out_t, last_modified), 0 }, |
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127 |
| 509 | 128 { ngx_string("Server"), |
| 129 ngx_http_upstream_process_header_line, | |
| 130 offsetof(ngx_http_upstream_headers_in_t, server), | |
| 649 | 131 ngx_http_upstream_copy_header_line, |
| 132 offsetof(ngx_http_headers_out_t, server), 0 }, | |
| 509 | 133 |
| 529 | 134 { ngx_string("WWW-Authenticate"), |
| 135 ngx_http_upstream_process_header_line, | |
| 136 offsetof(ngx_http_upstream_headers_in_t, www_authenticate), | |
| 137 ngx_http_upstream_copy_header_line, 0, 0 }, | |
| 138 | |
| 509 | 139 { ngx_string("Location"), |
| 140 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 141 ngx_http_upstream_rewrite_location, 0, 0 }, |
| 509 | 142 |
| 143 { ngx_string("Refresh"), | |
| 144 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 145 ngx_http_upstream_rewrite_refresh, 0, 0 }, |
| 146 | |
| 147 { ngx_string("Set-Cookie"), | |
| 148 ngx_http_upstream_ignore_header_line, 0, | |
| 531 | 149 ngx_http_upstream_copy_header_line, 0, 1 }, |
| 150 | |
| 151 { ngx_string("Content-Disposition"), | |
| 152 ngx_http_upstream_ignore_header_line, 0, | |
| 153 ngx_http_upstream_copy_header_line, 0, 1 }, | |
| 509 | 154 |
| 155 { ngx_string("Cache-Control"), | |
| 156 ngx_http_upstream_process_multi_header_lines, | |
| 157 offsetof(ngx_http_upstream_headers_in_t, cache_control), | |
| 158 ngx_http_upstream_copy_multi_header_lines, | |
| 515 | 159 offsetof(ngx_http_headers_out_t, cache_control), 1 }, |
| 509 | 160 |
| 573 | 161 { ngx_string("Expires"), |
| 162 ngx_http_upstream_process_header_line, | |
| 163 offsetof(ngx_http_upstream_headers_in_t, expires), | |
| 164 ngx_http_upstream_copy_header_line, | |
| 165 offsetof(ngx_http_headers_out_t, expires), 1 }, | |
| 166 | |
| 577 | 167 { ngx_string("Accept-Ranges"), |
| 168 ngx_http_upstream_process_header_line, | |
| 169 offsetof(ngx_http_upstream_headers_in_t, accept_ranges), | |
| 170 ngx_http_upstream_copy_header_line, | |
| 171 offsetof(ngx_http_headers_out_t, accept_ranges), 1 }, | |
| 172 | |
| 509 | 173 { ngx_string("Connection"), |
| 174 ngx_http_upstream_ignore_header_line, 0, | |
| 515 | 175 ngx_http_upstream_ignore_header_line, 0, 0 }, |
| 509 | 176 |
| 641 | 177 { ngx_string("Keep-Alive"), |
| 178 ngx_http_upstream_ignore_header_line, 0, | |
| 179 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 180 | |
| 509 | 181 { ngx_string("X-Powered-By"), |
| 182 ngx_http_upstream_ignore_header_line, 0, | |
| 649 | 183 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 509 | 184 |
| 185 { ngx_string("X-Accel-Expires"), | |
| 186 ngx_http_upstream_process_header_line, | |
| 187 offsetof(ngx_http_upstream_headers_in_t, x_accel_expires), | |
| 649 | 188 ngx_http_upstream_copy_header_line, 0, 0 }, |
| 515 | 189 |
| 190 { ngx_string("X-Accel-Redirect"), | |
| 191 ngx_http_upstream_process_header_line, | |
| 192 offsetof(ngx_http_upstream_headers_in_t, x_accel_redirect), | |
| 193 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 509 | 194 |
| 527 | 195 { ngx_string("X-Accel-Limit-Rate"), |
| 196 ngx_http_upstream_process_limit_rate, 0, | |
| 197 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 198 | |
| 649 | 199 { ngx_string("X-Accel-Buffering"), |
| 200 ngx_http_upstream_process_buffering, 0, | |
| 201 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 202 | |
| 657 | 203 { ngx_string("X-Accel-Charset"), |
| 204 ngx_http_upstream_process_charset, 0, | |
| 205 ngx_http_upstream_ignore_header_line, 0, 0 }, | |
| 206 | |
| 509 | 207 #if (NGX_HTTP_GZIP) |
| 208 { ngx_string("Content-Encoding"), | |
| 209 ngx_http_upstream_process_header_line, | |
| 210 offsetof(ngx_http_upstream_headers_in_t, content_encoding), | |
| 515 | 211 ngx_http_upstream_copy_content_encoding, 0, 0 }, |
| 509 | 212 #endif |
| 213 | |
| 515 | 214 { ngx_null_string, NULL, 0, NULL, 0, 0 } |
| 509 | 215 }; |
| 479 | 216 |
| 217 | |
| 651 | 218 static ngx_command_t ngx_http_upstream_commands[] = { |
| 219 | |
| 220 { ngx_string("upstream"), | |
| 221 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1, | |
| 222 ngx_http_upstream, | |
| 223 0, | |
| 224 0, | |
| 225 NULL }, | |
| 226 | |
| 227 { ngx_string("server"), | |
| 884 | 228 NGX_HTTP_UPS_CONF|NGX_CONF_1MORE, |
| 651 | 229 ngx_http_upstream_server, |
| 230 NGX_HTTP_SRV_CONF_OFFSET, | |
| 231 0, | |
| 232 NULL }, | |
| 233 | |
| 234 ngx_null_command | |
| 235 }; | |
| 236 | |
| 237 | |
| 238 static ngx_http_module_t ngx_http_upstream_module_ctx = { | |
| 573 | 239 ngx_http_upstream_add_variables, /* preconfiguration */ |
| 509 | 240 NULL, /* postconfiguration */ |
| 241 | |
| 242 ngx_http_upstream_create_main_conf, /* create main configuration */ | |
| 651 | 243 ngx_http_upstream_init_main_conf, /* init main configuration */ |
| 479 | 244 |
| 245 NULL, /* create server configuration */ | |
| 246 NULL, /* merge server configuration */ | |
| 247 | |
| 248 NULL, /* create location configuration */ | |
| 249 NULL /* merge location configuration */ | |
| 250 }; | |
| 577 | 251 |
| 479 | 252 |
| 253 ngx_module_t ngx_http_upstream_module = { | |
| 509 | 254 NGX_MODULE_V1, |
| 479 | 255 &ngx_http_upstream_module_ctx, /* module context */ |
| 651 | 256 ngx_http_upstream_commands, /* module directives */ |
| 479 | 257 NGX_HTTP_MODULE, /* module type */ |
| 541 | 258 NULL, /* init master */ |
| 479 | 259 NULL, /* init module */ |
| 541 | 260 NULL, /* init process */ |
| 261 NULL, /* init thread */ | |
| 262 NULL, /* exit thread */ | |
| 263 NULL, /* exit process */ | |
| 264 NULL, /* exit master */ | |
| 265 NGX_MODULE_V1_PADDING | |
| 479 | 266 }; |
| 267 | |
| 268 | |
| 573 | 269 static ngx_http_variable_t ngx_http_upstream_vars[] = { |
| 270 | |
| 1181 | 271 { ngx_string("upstream_addr"), NULL, |
| 272 ngx_http_upstream_addr_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, | |
| 273 | |
| 637 | 274 { ngx_string("upstream_status"), NULL, |
| 583 | 275 ngx_http_upstream_status_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
| 573 | 276 |
| 637 | 277 { ngx_string("upstream_response_time"), NULL, |
| 583 | 278 ngx_http_upstream_response_time_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
| 573 | 279 |
| 637 | 280 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
| 573 | 281 }; |
| 282 | |
| 283 | |
| 487 | 284 void |
| 285 ngx_http_upstream_init(ngx_http_request_t *r) | |
| 479 | 286 { |
| 1658 | 287 ngx_str_t *host; |
| 288 ngx_uint_t i; | |
| 289 ngx_connection_t *c; | |
| 290 ngx_resolver_ctx_t *ctx, temp; | |
| 291 ngx_http_cleanup_t *cln; | |
| 292 ngx_http_upstream_t *u; | |
| 293 ngx_http_core_loc_conf_t *clcf; | |
| 294 ngx_http_upstream_srv_conf_t *uscf, **uscfp; | |
| 295 ngx_http_upstream_main_conf_t *umcf; | |
| 479 | 296 |
| 297 c = r->connection; | |
| 298 | |
| 299 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 300 "http init upstream, client timer: %d", c->read->timer_set); | |
| 301 | |
| 302 if (c->read->timer_set) { | |
| 303 ngx_del_timer(c->read); | |
| 304 } | |
| 305 | |
| 629 | 306 u = r->upstream; |
| 307 | |
| 308 if (!r->post_action && !u->conf->ignore_client_abort) { | |
| 615 | 309 r->read_event_handler = ngx_http_upstream_rd_check_broken_connection; |
| 310 r->write_event_handler = ngx_http_upstream_wr_check_broken_connection; | |
| 311 } | |
| 577 | 312 |
| 479 | 313 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) { |
| 314 | |
| 315 if (!c->write->active) { | |
| 531 | 316 if (ngx_add_event(c->write, NGX_WRITE_EVENT, NGX_CLEAR_EVENT) |
| 317 == NGX_ERROR) | |
| 479 | 318 { |
| 319 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 320 return; | |
| 321 } | |
| 322 } | |
| 323 } | |
| 324 | |
| 537 | 325 if (r->request_body) { |
| 326 u->request_bufs = r->request_body->bufs; | |
| 327 } | |
| 509 | 328 |
| 537 | 329 if (u->create_request(r) != NGX_OK) { |
| 479 | 330 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 331 return; | |
| 332 } | |
| 333 | |
| 509 | 334 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
| 479 | 335 |
| 1658 | 336 u->output.sendfile = c->sendfile; |
| 479 | 337 u->output.pool = r->pool; |
| 338 u->output.bufs.num = 1; | |
| 509 | 339 u->output.bufs.size = clcf->client_body_buffer_size; |
| 479 | 340 u->output.output_filter = ngx_chain_writer; |
| 341 u->output.filter_ctx = &u->writer; | |
| 342 | |
| 343 u->writer.pool = r->pool; | |
| 344 | |
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345 if (r->upstream_states == NULL) { |
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346 |
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347 r->upstream_states = ngx_array_create(r->pool, 1, |
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348 sizeof(ngx_http_upstream_state_t)); |
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1166
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349 if (r->upstream_states == NULL) { |
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350 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); |
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351 return; |
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352 } |
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353 |
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354 } else { |
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355 |
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store the upstream states before X-Accel-Redirect to a next upstream
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356 u->state = ngx_array_push(r->upstream_states); |
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357 if (u->state == NULL) { |
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358 ngx_http_upstream_finalize_request(r, u, |
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359 NGX_HTTP_INTERNAL_SERVER_ERROR); |
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360 return; |
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361 } |
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362 |
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363 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t)); |
| 479 | 364 } |
| 365 | |
| 593 | 366 cln = ngx_http_cleanup_add(r, 0); |
| 569 | 367 if (cln == NULL) { |
| 368 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 369 return; | |
| 370 } | |
| 371 | |
| 372 cln->handler = ngx_http_upstream_cleanup; | |
| 373 cln->data = r; | |
| 374 u->cleanup = &cln->handler; | |
| 375 | |
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376 u->store = (u->conf->store || u->conf->store_lengths); |
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377 |
| 1658 | 378 if (u->resolved == NULL) { |
| 379 | |
| 380 uscf = u->conf->upstream; | |
| 381 | |
| 382 } else { | |
| 383 | |
| 384 host = &r->upstream->resolved->host; | |
| 385 | |
| 386 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); | |
| 387 | |
| 388 uscfp = umcf->upstreams.elts; | |
| 389 | |
| 390 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
| 391 | |
| 392 uscf = uscfp[i]; | |
| 393 | |
| 394 if (uscf->host.len == host->len | |
| 395 && ngx_memcmp(uscf->host.data, host->data, host->len) == 0) | |
| 396 { | |
| 397 goto found; | |
| 398 } | |
| 399 } | |
| 400 | |
| 401 temp.name = *host; | |
| 402 | |
| 403 ctx = ngx_resolve_start(clcf->resolver, &temp); | |
| 404 if (ctx == NULL) { | |
| 405 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 406 return; | |
| 407 } | |
| 408 | |
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409 if (ctx == NGX_NO_RESOLVER) { |
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410 ngx_log_error(NGX_LOG_ERR, c->log, 0, |
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411 "no resolver defined to resolve %V", host); |
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412 |
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413 ngx_http_finalize_request(r, NGX_HTTP_BAD_GATEWAY); |
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414 return; |
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415 } |
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416 |
| 1658 | 417 ctx->name = *host; |
| 418 ctx->type = NGX_RESOLVE_A; | |
| 419 ctx->handler = ngx_http_upstream_resolve_handler; | |
| 420 ctx->data = r; | |
| 421 ctx->timeout = clcf->resolver_timeout; | |
| 422 | |
| 423 u->resolved->ctx = ctx; | |
| 424 | |
| 425 if (ngx_resolve_name(ctx) != NGX_OK) { | |
| 426 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 427 return; | |
| 428 } | |
| 429 | |
| 430 return; | |
| 431 } | |
| 432 | |
| 433 found: | |
| 434 | |
| 435 if (uscf->peer.init(r, uscf) != NGX_OK) { | |
| 436 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 437 return; | |
| 438 } | |
| 439 | |
| 479 | 440 ngx_http_upstream_connect(r, u); |
| 441 } | |
| 442 | |
| 443 | |
| 487 | 444 static void |
| 1658 | 445 ngx_http_upstream_resolve_handler(ngx_resolver_ctx_t *ctx) |
| 446 { | |
| 447 ngx_http_request_t *r; | |
| 448 ngx_http_upstream_resolved_t *ur; | |
| 449 | |
| 450 r = ctx->data; | |
| 451 | |
| 452 r->upstream->resolved->ctx = NULL; | |
| 453 | |
| 454 if (ctx->state) { | |
| 455 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 456 "%V could not be resolved (%i: %s)", | |
| 457 &ctx->name, ctx->state, | |
| 458 ngx_resolver_strerror(ctx->state)); | |
| 459 | |
| 460 ngx_resolve_name_done(ctx); | |
| 461 ngx_http_finalize_request(r, NGX_HTTP_BAD_GATEWAY); | |
| 462 return; | |
| 463 } | |
| 464 | |
| 465 ur = r->upstream->resolved; | |
| 466 ur->naddrs = ctx->naddrs; | |
| 467 ur->addrs = ctx->addrs; | |
| 468 | |
| 469 #if (NGX_DEBUG) | |
| 470 { | |
| 471 in_addr_t addr; | |
| 472 ngx_uint_t i; | |
| 473 | |
| 474 for (i = 0; i < ctx->naddrs; i++) { | |
| 475 addr = ntohl(ur->addrs[i]); | |
| 476 | |
| 477 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 478 "name was resolved to %ud.%ud.%ud.%ud", | |
| 479 (addr >> 24) & 0xff, (addr >> 16) & 0xff, | |
| 480 (addr >> 8) & 0xff, addr & 0xff); | |
| 481 } | |
| 482 } | |
| 483 #endif | |
| 484 | |
| 485 if (ngx_http_upstream_create_round_robin_peer(r, ur) != NGX_OK) { | |
| 486 ngx_resolve_name_done(ctx); | |
| 487 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 488 return; | |
| 489 } | |
| 490 | |
| 491 ngx_resolve_name_done(ctx); | |
| 492 | |
| 493 ngx_http_upstream_connect(r, r->upstream); | |
| 494 } | |
| 495 | |
| 496 | |
| 497 static void | |
| 509 | 498 ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r) |
| 499 { | |
| 500 ngx_http_upstream_check_broken_connection(r, r->connection->read); | |
| 501 } | |
| 502 | |
| 503 | |
| 504 static void | |
| 505 ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r) | |
| 506 { | |
| 507 ngx_http_upstream_check_broken_connection(r, r->connection->write); | |
| 508 } | |
| 509 | |
| 510 | |
| 511 static void | |
| 512 ngx_http_upstream_check_broken_connection(ngx_http_request_t *r, | |
| 513 ngx_event_t *ev) | |
| 479 | 514 { |
| 515 int n; | |
| 516 char buf[1]; | |
| 577 | 517 ngx_err_t err; |
| 479 | 518 ngx_connection_t *c; |
| 519 ngx_http_upstream_t *u; | |
| 520 | |
| 527 | 521 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, ev->log, 0, |
| 522 "http upstream check client, write event:%d, \"%V\"", | |
| 523 ev->write, &r->uri); | |
| 479 | 524 |
| 509 | 525 c = r->connection; |
| 483 | 526 u = r->upstream; |
| 527 | |
| 583 | 528 if (c->error) { |
| 527 | 529 ngx_http_upstream_finalize_request(r, u, |
| 530 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 531 return; | |
| 532 } | |
| 533 | |
| 483 | 534 if (u->peer.connection == NULL) { |
| 535 return; | |
| 536 } | |
| 537 | |
| 479 | 538 #if (NGX_HAVE_KQUEUE) |
| 539 | |
| 540 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { | |
| 541 | |
| 542 if (!ev->pending_eof) { | |
| 543 return; | |
| 544 } | |
| 545 | |
| 546 ev->eof = 1; | |
| 583 | 547 c->error = 1; |
| 479 | 548 |
| 549 if (ev->kq_errno) { | |
| 550 ev->error = 1; | |
| 551 } | |
| 552 | |
| 1565 | 553 if (!u->cacheable && !u->store && u->peer.connection) { |
| 479 | 554 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno, |
| 527 | 555 "kevent() reported that client closed prematurely " |
| 556 "connection, so upstream connection is closed too"); | |
| 479 | 557 ngx_http_upstream_finalize_request(r, u, |
| 558 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 559 return; | |
| 560 } | |
| 561 | |
| 562 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno, | |
| 563 "kevent() reported that client closed " | |
| 564 "prematurely connection"); | |
| 565 | |
| 566 if (u->peer.connection == NULL) { | |
| 567 ngx_http_upstream_finalize_request(r, u, | |
| 568 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 569 return; | |
| 570 } | |
| 571 | |
| 572 return; | |
| 573 } | |
| 574 | |
| 575 #endif | |
| 576 | |
| 577 n = recv(c->fd, buf, 1, MSG_PEEK); | |
| 578 | |
| 579 err = ngx_socket_errno; | |
| 580 | |
| 1109 | 581 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ev->log, err, |
| 582 "http upstream recv(): %d", n); | |
| 583 | |
| 479 | 584 /* |
| 585 * we do not need to disable the write event because | |
| 586 * that event has NGX_USE_CLEAR_EVENT type | |
| 587 */ | |
| 588 | |
| 589 if (ev->write && (n >= 0 || err == NGX_EAGAIN)) { | |
| 590 return; | |
| 591 } | |
| 592 | |
| 593 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) { | |
| 594 if (ngx_del_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) { | |
| 595 ngx_http_upstream_finalize_request(r, u, | |
| 596 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 597 return; | |
| 598 } | |
| 599 } | |
| 600 | |
| 601 if (n > 0) { | |
| 602 return; | |
| 603 } | |
| 604 | |
| 605 if (n == -1) { | |
| 606 if (err == NGX_EAGAIN) { | |
| 607 return; | |
| 608 } | |
| 609 | |
| 610 ev->error = 1; | |
| 611 | |
| 483 | 612 } else { /* n == 0 */ |
| 479 | 613 err = 0; |
| 614 } | |
| 615 | |
| 529 | 616 ev->eof = 1; |
| 583 | 617 c->error = 1; |
| 529 | 618 |
| 1565 | 619 if (!u->cacheable && !u->store && u->peer.connection) { |
| 479 | 620 ngx_log_error(NGX_LOG_INFO, ev->log, err, |
| 621 "client closed prematurely connection, " | |
| 622 "so upstream connection is closed too"); | |
| 623 ngx_http_upstream_finalize_request(r, u, | |
| 624 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 625 return; | |
| 626 } | |
| 627 | |
| 628 ngx_log_error(NGX_LOG_INFO, ev->log, err, | |
| 629 "client closed prematurely connection"); | |
| 630 | |
| 631 if (u->peer.connection == NULL) { | |
| 632 ngx_http_upstream_finalize_request(r, u, | |
| 633 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 634 return; | |
| 635 } | |
| 636 } | |
| 637 | |
| 638 | |
| 487 | 639 static void |
| 640 ngx_http_upstream_connect(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 479 | 641 { |
| 591 | 642 ngx_int_t rc; |
| 665 | 643 ngx_time_t *tp; |
| 591 | 644 ngx_connection_t *c; |
| 479 | 645 |
| 483 | 646 r->connection->log->action = "connecting to upstream"; |
| 479 | 647 |
| 648 r->connection->single_connection = 0; | |
| 649 | |
|
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650 if (u->state && u->state->response_sec) { |
| 665 | 651 tp = ngx_timeofday(); |
|
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652 u->state->response_sec = tp->sec - u->state->response_sec; |
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653 u->state->response_msec = tp->msec - u->state->response_msec; |
| 665 | 654 } |
| 655 | |
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656 u->state = ngx_array_push(r->upstream_states); |
| 665 | 657 if (u->state == NULL) { |
| 658 ngx_http_upstream_finalize_request(r, u, | |
| 659 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 660 return; | |
| 661 } | |
| 662 | |
| 663 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t)); | |
| 664 | |
| 665 tp = ngx_timeofday(); | |
|
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666 u->state->response_sec = tp->sec; |
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667 u->state->response_msec = tp->msec; |
| 1658 | 668 u->state->peer = u->peer.name; |
| 665 | 669 |
| 479 | 670 rc = ngx_event_connect_peer(&u->peer); |
| 671 | |
| 672 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 673 "http upstream connect: %i", rc); | |
| 674 | |
| 675 if (rc == NGX_ERROR) { | |
| 676 ngx_http_upstream_finalize_request(r, u, | |
| 677 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 678 return; | |
| 679 } | |
| 680 | |
| 543 | 681 if (rc == NGX_BUSY) { |
| 682 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no live upstreams"); | |
| 1378 | 683 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_NOLIVE); |
| 684 return; | |
| 543 | 685 } |
| 686 | |
| 1378 | 687 if (rc == NGX_DECLINED) { |
| 479 | 688 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
| 689 return; | |
| 690 } | |
| 691 | |
| 577 | 692 /* rc == NGX_OK || rc == NGX_AGAIN */ |
| 693 | |
| 479 | 694 c = u->peer.connection; |
| 695 | |
| 696 c->data = r; | |
| 591 | 697 |
| 509 | 698 c->write->handler = ngx_http_upstream_send_request_handler; |
| 699 c->read->handler = ngx_http_upstream_process_header; | |
| 479 | 700 |
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701 c->sendfile &= r->connection->sendfile; |
| 479 | 702 |
| 703 c->pool = r->pool; | |
| 704 c->read->log = c->write->log = c->log = r->connection->log; | |
| 705 | |
| 706 /* init or reinit the ngx_output_chain() and ngx_chain_writer() contexts */ | |
| 707 | |
| 708 u->writer.out = NULL; | |
| 709 u->writer.last = &u->writer.out; | |
| 710 u->writer.connection = c; | |
| 711 u->writer.limit = 0; | |
| 712 | |
| 713 if (u->request_sent) { | |
| 509 | 714 if (ngx_http_upstream_reinit(r, u) != NGX_OK) { |
| 715 ngx_http_upstream_finalize_request(r, u, | |
| 716 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 717 return; | |
| 718 } | |
| 479 | 719 } |
| 720 | |
|
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721 if (r->request_body |
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722 && r->request_body->buf |
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|
723 && r->request_body->temp_file |
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|
724 && r == r->main) |
|
7c84c877f2d7
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|
725 { |
| 573 | 726 /* |
| 727 * the r->request_body->buf can be reused for one request only, | |
| 728 * the subrequests should allocate their own temporay bufs | |
| 729 */ | |
| 730 | |
| 731 u->output.free = ngx_alloc_chain_link(r->pool); | |
| 732 if (u->output.free == NULL) { | |
| 733 ngx_http_upstream_finalize_request(r, u, | |
| 734 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 735 return; | |
| 479 | 736 } |
| 573 | 737 |
| 738 u->output.free->buf = r->request_body->buf; | |
| 739 u->output.free->next = NULL; | |
| 740 u->output.allocated = 1; | |
| 741 | |
| 742 r->request_body->buf->pos = r->request_body->buf->start; | |
| 743 r->request_body->buf->last = r->request_body->buf->start; | |
| 744 r->request_body->buf->tag = u->output.tag; | |
| 479 | 745 } |
| 746 | |
| 747 u->request_sent = 0; | |
| 748 | |
| 749 if (rc == NGX_AGAIN) { | |
| 750 ngx_add_timer(c->write, u->conf->connect_timeout); | |
| 751 return; | |
| 752 } | |
| 753 | |
| 577 | 754 #if (NGX_HTTP_SSL) |
| 755 | |
| 1658 | 756 if (u->ssl && c->ssl == NULL) { |
| 591 | 757 ngx_http_upstream_ssl_init_connection(r, u, c); |
| 577 | 758 return; |
| 759 } | |
| 760 | |
| 761 #endif | |
| 762 | |
| 479 | 763 ngx_http_upstream_send_request(r, u); |
| 764 } | |
| 765 | |
| 766 | |
| 577 | 767 #if (NGX_HTTP_SSL) |
| 768 | |
| 769 static void | |
| 591 | 770 ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r, |
| 771 ngx_http_upstream_t *u, ngx_connection_t *c) | |
| 772 { | |
| 884 | 773 ngx_int_t rc; |
| 591 | 774 |
| 775 if (ngx_ssl_create_connection(u->conf->ssl, c, | |
| 776 NGX_SSL_BUFFER|NGX_SSL_CLIENT) | |
| 777 == NGX_ERROR) | |
| 778 { | |
| 779 ngx_http_upstream_finalize_request(r, u, | |
| 780 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 781 return; | |
| 782 } | |
| 783 | |
| 784 c->sendfile = 0; | |
| 619 | 785 u->output.sendfile = 0; |
| 591 | 786 |
|
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fix segfault when session was freed twice
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1259
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changeset
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787 if (u->peer.set_session(&u->peer, u->peer.data) != NGX_OK) { |
| 591 | 788 ngx_http_upstream_finalize_request(r, u, |
| 789 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 790 return; | |
| 791 } | |
| 792 | |
| 641 | 793 r->connection->log->action = "SSL handshaking to upstream"; |
| 794 | |
| 591 | 795 rc = ngx_ssl_handshake(c); |
| 796 | |
| 797 if (rc == NGX_AGAIN) { | |
| 798 c->ssl->handler = ngx_http_upstream_ssl_handshake; | |
| 799 return; | |
| 800 } | |
| 801 | |
| 802 ngx_http_upstream_ssl_handshake(c); | |
| 803 } | |
| 804 | |
| 805 | |
| 806 static void | |
| 577 | 807 ngx_http_upstream_ssl_handshake(ngx_connection_t *c) |
| 808 { | |
| 809 ngx_http_request_t *r; | |
| 810 ngx_http_upstream_t *u; | |
| 811 | |
| 812 r = c->data; | |
| 813 u = r->upstream; | |
| 814 | |
| 815 if (c->ssl->handshaked) { | |
| 816 | |
| 884 | 817 u->peer.save_session(&u->peer, u->peer.data); |
| 818 | |
| 577 | 819 c->write->handler = ngx_http_upstream_send_request_handler; |
| 820 c->read->handler = ngx_http_upstream_process_header; | |
| 821 | |
| 822 ngx_http_upstream_send_request(r, u); | |
| 823 | |
| 824 return; | |
| 825 } | |
| 826 | |
| 827 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 828 | |
| 829 } | |
| 830 | |
| 831 #endif | |
| 832 | |
| 833 | |
| 509 | 834 static ngx_int_t |
| 487 | 835 ngx_http_upstream_reinit(ngx_http_request_t *r, ngx_http_upstream_t *u) |
| 479 | 836 { |
| 837 ngx_chain_t *cl; | |
| 838 | |
| 509 | 839 if (u->reinit_request(r) != NGX_OK) { |
| 840 return NGX_ERROR; | |
| 841 } | |
| 842 | |
| 843 ngx_memzero(&r->upstream->headers_in, | |
| 844 sizeof(ngx_http_upstream_headers_in_t)); | |
| 845 | |
| 846 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, | |
| 591 | 847 sizeof(ngx_table_elt_t)) |
| 848 != NGX_OK) | |
| 509 | 849 { |
| 850 return NGX_ERROR; | |
| 479 | 851 } |
| 852 | |
| 853 /* reinit the request chain */ | |
| 577 | 854 |
| 509 | 855 for (cl = u->request_bufs; cl; cl = cl->next) { |
| 479 | 856 cl->buf->pos = cl->buf->start; |
| 857 cl->buf->file_pos = 0; | |
| 858 } | |
| 859 | |
| 509 | 860 /* reinit the subrequest's ngx_output_chain() context */ |
| 861 | |
| 573 | 862 if (r->request_body && r->request_body->temp_file |
| 597 | 863 && r != r->main && u->output.buf) |
| 573 | 864 { |
| 865 u->output.free = ngx_alloc_chain_link(r->pool); | |
| 866 if (u->output.free == NULL) { | |
| 867 return NGX_ERROR; | |
| 509 | 868 } |
| 573 | 869 |
| 870 u->output.free->buf = u->output.buf; | |
| 871 u->output.free->next = NULL; | |
| 872 | |
| 873 u->output.buf->pos = u->output.buf->start; | |
| 874 u->output.buf->last = u->output.buf->start; | |
| 509 | 875 } |
| 479 | 876 |
| 877 u->output.buf = NULL; | |
| 878 u->output.in = NULL; | |
| 879 u->output.busy = NULL; | |
| 577 | 880 |
| 581 | 881 /* reinit u->buffer */ |
| 577 | 882 |
| 479 | 883 #if 0 |
| 884 if (u->cache) { | |
| 581 | 885 u->buffer.pos = u->buffer.start + u->cache->ctx.header_size; |
| 886 u->buffer.last = u->buffer.pos; | |
| 479 | 887 |
| 888 } else { | |
| 581 | 889 u->buffer.pos = u->buffer.start; |
| 890 u->buffer.last = u->buffer.start; | |
| 479 | 891 } |
| 892 #else | |
| 509 | 893 |
| 581 | 894 u->buffer.pos = u->buffer.start; |
| 895 u->buffer.last = u->buffer.start; | |
| 509 | 896 |
| 479 | 897 #endif |
| 898 | |
| 509 | 899 return NGX_OK; |
| 479 | 900 } |
| 901 | |
| 902 | |
| 487 | 903 static void |
| 904 ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 479 | 905 { |
|
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906 ngx_int_t rc; |
| 483 | 907 ngx_connection_t *c; |
| 577 | 908 |
| 479 | 909 c = u->peer.connection; |
| 910 | |
| 911 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 912 "http upstream send request"); | |
| 913 | |
|
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914 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) { |
| 1166 | 915 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
|
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916 return; |
| 479 | 917 } |
| 918 | |
| 483 | 919 c->log->action = "sending request to upstream"; |
| 479 | 920 |
| 509 | 921 rc = ngx_output_chain(&u->output, u->request_sent ? NULL : u->request_bufs); |
| 479 | 922 |
| 923 u->request_sent = 1; | |
| 924 | |
| 925 if (rc == NGX_ERROR) { | |
| 926 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 927 return; | |
| 928 } | |
| 929 | |
| 930 if (c->write->timer_set) { | |
| 931 ngx_del_timer(c->write); | |
| 932 } | |
| 933 | |
| 934 if (rc == NGX_AGAIN) { | |
| 935 ngx_add_timer(c->write, u->conf->send_timeout); | |
| 936 | |
| 937 if (ngx_handle_write_event(c->write, u->conf->send_lowat) == NGX_ERROR) | |
| 938 { | |
| 939 ngx_http_upstream_finalize_request(r, u, | |
| 940 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 941 return; | |
| 942 } | |
| 943 | |
| 944 return; | |
| 945 } | |
| 946 | |
| 947 /* rc == NGX_OK */ | |
| 948 | |
| 949 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) { | |
| 950 if (ngx_tcp_push(c->fd) == NGX_ERROR) { | |
| 951 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno, | |
| 952 ngx_tcp_push_n " failed"); | |
| 953 ngx_http_upstream_finalize_request(r, u, | |
| 954 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 577 | 955 return; |
| 479 | 956 } |
| 957 | |
| 958 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET; | |
| 959 } | |
| 577 | 960 |
| 479 | 961 ngx_add_timer(c->read, u->conf->read_timeout); |
| 962 | |
| 963 #if 1 | |
| 964 if (c->read->ready) { | |
| 577 | 965 |
| 479 | 966 /* post aio operation */ |
| 967 | |
| 968 /* | |
| 969 * TODO comment | |
| 970 * although we can post aio operation just in the end | |
| 971 * of ngx_http_upstream_connect() CHECK IT !!! | |
| 972 * it's better to do here because we postpone header buffer allocation | |
| 973 */ | |
| 974 | |
| 975 ngx_http_upstream_process_header(c->read); | |
| 976 return; | |
| 977 } | |
| 978 #endif | |
| 979 | |
| 509 | 980 c->write->handler = ngx_http_upstream_dummy_handler; |
| 479 | 981 |
| 509 | 982 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) { |
| 479 | 983 ngx_http_upstream_finalize_request(r, u, |
| 984 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 985 return; | |
| 986 } | |
| 987 } | |
| 988 | |
| 989 | |
| 487 | 990 static void |
| 991 ngx_http_upstream_send_request_handler(ngx_event_t *wev) | |
| 479 | 992 { |
| 993 ngx_connection_t *c; | |
| 994 ngx_http_request_t *r; | |
| 995 ngx_http_upstream_t *u; | |
| 996 | |
| 997 c = wev->data; | |
| 998 r = c->data; | |
| 999 u = r->upstream; | |
| 1000 | |
| 1001 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
| 1002 "http upstream send request handler"); | |
| 1003 | |
| 1004 if (wev->timedout) { | |
| 1005 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
| 1006 return; | |
| 1007 } | |
| 1008 | |
| 591 | 1009 #if (NGX_HTTP_SSL) |
| 1010 | |
| 1658 | 1011 if (u->ssl && c->ssl == NULL) { |
| 591 | 1012 ngx_http_upstream_ssl_init_connection(r, u, c); |
| 1013 return; | |
| 1014 } | |
| 1015 | |
| 1016 #endif | |
| 1017 | |
| 651 | 1018 if (u->header_sent) { |
| 1019 wev->handler = ngx_http_upstream_dummy_handler; | |
| 1020 | |
| 1021 (void) ngx_handle_write_event(wev, 0); | |
| 1022 | |
| 1023 return; | |
| 1024 } | |
| 1025 | |
| 479 | 1026 ngx_http_upstream_send_request(r, u); |
| 1027 } | |
| 1028 | |
| 1029 | |
| 487 | 1030 static void |
| 1031 ngx_http_upstream_process_header(ngx_event_t *rev) | |
| 479 | 1032 { |
| 515 | 1033 ssize_t n; |
| 1034 ngx_int_t rc; | |
| 573 | 1035 ngx_str_t *uri, args; |
| 649 | 1036 ngx_uint_t i, flags; |
| 515 | 1037 ngx_list_part_t *part; |
| 1038 ngx_table_elt_t *h; | |
| 1039 ngx_connection_t *c; | |
| 1040 ngx_http_request_t *r; | |
| 1041 ngx_http_upstream_t *u; | |
| 1042 ngx_http_err_page_t *err_page; | |
| 1043 ngx_http_core_loc_conf_t *clcf; | |
| 1044 ngx_http_upstream_header_t *hh; | |
| 1045 ngx_http_upstream_main_conf_t *umcf; | |
| 479 | 1046 |
| 1047 c = rev->data; | |
| 1048 r = c->data; | |
| 1049 u = r->upstream; | |
| 1050 | |
| 1051 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, | |
| 483 | 1052 "http upstream process header"); |
| 479 | 1053 |
| 483 | 1054 c->log->action = "reading response header from upstream"; |
| 479 | 1055 |
| 1056 if (rev->timedout) { | |
| 1057 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT); | |
| 1058 return; | |
| 1059 } | |
| 577 | 1060 |
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1061 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) { |
| 1166 | 1062 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); |
|
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1063 return; |
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1064 } |
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1065 |
| 581 | 1066 if (u->buffer.start == NULL) { |
| 1067 u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size); | |
| 1068 if (u->buffer.start == NULL) { | |
| 479 | 1069 ngx_http_upstream_finalize_request(r, u, |
| 1070 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1071 return; | |
| 1072 } | |
| 1073 | |
| 581 | 1074 u->buffer.pos = u->buffer.start; |
| 1075 u->buffer.last = u->buffer.start; | |
| 1076 u->buffer.end = u->buffer.start + u->conf->buffer_size; | |
| 1077 u->buffer.temporary = 1; | |
| 1078 | |
| 1079 u->buffer.tag = u->output.tag; | |
| 479 | 1080 |
| 509 | 1081 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8, |
| 581 | 1082 sizeof(ngx_table_elt_t)) |
| 1083 != NGX_OK) | |
| 509 | 1084 { |
| 1085 ngx_http_upstream_finalize_request(r, u, | |
| 1086 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1087 return; | |
| 1088 } | |
| 1089 | |
| 479 | 1090 #if 0 |
| 1091 if (u->cache) { | |
| 581 | 1092 u->buffer.pos += u->cache->ctx.header_size; |
| 1093 u->buffer.last = u->buffer.pos; | |
| 479 | 1094 } |
| 1095 #endif | |
| 1096 } | |
| 1097 | |
| 1558 | 1098 n = c->recv(c, u->buffer.last, u->buffer.end - u->buffer.last); |
| 479 | 1099 |
| 1100 if (n == NGX_AGAIN) { | |
| 1101 #if 0 | |
| 1102 ngx_add_timer(rev, u->read_timeout); | |
| 1103 #endif | |
| 1104 | |
| 1105 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 1106 ngx_http_upstream_finalize_request(r, u, | |
| 1107 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1108 return; | |
| 1109 } | |
| 1110 | |
| 1111 return; | |
| 1112 } | |
| 1113 | |
| 1114 if (n == 0) { | |
| 1115 ngx_log_error(NGX_LOG_ERR, rev->log, 0, | |
| 1116 "upstream prematurely closed connection"); | |
| 1117 } | |
| 1118 | |
| 1119 if (n == NGX_ERROR || n == 0) { | |
| 1120 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); | |
| 1121 return; | |
| 1122 } | |
| 1123 | |
| 581 | 1124 u->buffer.last += n; |
| 479 | 1125 |
| 1126 #if 0 | |
| 1127 u->valid_header_in = 0; | |
| 1128 | |
| 1129 u->peer.cached = 0; | |
| 1130 #endif | |
| 1131 | |
| 1132 rc = u->process_header(r); | |
| 1133 | |
| 1134 if (rc == NGX_AGAIN) { | |
| 1135 #if 0 | |
| 1136 ngx_add_timer(rev, u->read_timeout); | |
| 1137 #endif | |
| 1138 | |
| 581 | 1139 if (u->buffer.pos == u->buffer.end) { |
| 479 | 1140 ngx_log_error(NGX_LOG_ERR, rev->log, 0, |
| 1141 "upstream sent too big header"); | |
| 1142 | |
| 1143 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
| 1144 return; | |
| 1145 } | |
| 1146 | |
| 1147 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 1148 ngx_http_upstream_finalize_request(r, u, | |
| 1149 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1150 return; | |
| 1151 } | |
| 1152 | |
| 1153 return; | |
| 1154 } | |
| 1155 | |
| 1156 if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) { | |
| 1157 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER); | |
| 1158 return; | |
| 1159 } | |
| 1160 | |
| 1161 if (rc == NGX_ERROR || rc == NGX_HTTP_INTERNAL_SERVER_ERROR) { | |
| 1162 ngx_http_upstream_finalize_request(r, u, | |
| 1163 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1164 return; | |
| 1165 } | |
| 1166 | |
| 1167 /* rc == NGX_OK */ | |
| 1168 | |
|
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1169 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
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1170 && r->subrequest_in_memory) |
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1171 { |
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1172 u->buffer.last = u->buffer.pos; |
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1173 } |
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1174 |
| 529 | 1175 if (u->headers_in.status_n == NGX_HTTP_INTERNAL_SERVER_ERROR) { |
| 509 | 1176 |
| 1177 if (u->peer.tries > 1 | |
| 1178 && (u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
| 1179 { | |
| 1180 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_500); | |
| 1181 return; | |
| 1182 } | |
| 1183 | |
| 1184 #if (NGX_HTTP_CACHE) | |
| 1185 | |
| 1186 if (u->peer.tries == 0 | |
| 1187 && u->stale | |
| 1188 && (u->conf->use_stale & NGX_HTTP_UPSTREAM_FT_HTTP_500)) | |
| 1189 { | |
| 1190 ngx_http_upstream_finalize_request(r, u, | |
| 529 | 1191 ngx_http_send_cached_response(r)); |
| 509 | 1192 return; |
| 1193 } | |
| 1194 | |
| 1195 #endif | |
| 1196 } | |
| 1197 | |
| 597 | 1198 if (u->headers_in.status_n == NGX_HTTP_NOT_FOUND) { |
| 1199 | |
| 1200 if (u->peer.tries > 1 | |
| 1201 && u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_404) | |
| 1202 { | |
| 1203 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_404); | |
| 1204 return; | |
| 1205 } | |
| 1206 | |
| 675 | 1207 if (u->conf->intercept_404) { |
| 1208 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_NOT_FOUND); | |
| 597 | 1209 return; |
| 1210 } | |
| 509 | 1211 } |
| 1212 | |
| 1213 | |
| 529 | 1214 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST |
| 675 | 1215 && u->conf->intercept_errors) |
| 487 | 1216 { |
| 1217 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 1218 | |
| 1219 if (clcf->error_pages) { | |
| 1220 | |
| 1221 err_page = clcf->error_pages->elts; | |
| 1222 for (i = 0; i < clcf->error_pages->nelts; i++) { | |
| 529 | 1223 if (err_page[i].status == (ngx_int_t) u->headers_in.status_n) { |
| 1224 | |
| 1225 if (u->headers_in.status_n == NGX_HTTP_UNAUTHORIZED) { | |
| 1226 | |
| 1227 r->headers_out.www_authenticate = | |
| 1228 ngx_list_push(&r->headers_out.headers); | |
| 1229 | |
| 1230 if (r->headers_out.www_authenticate == NULL) { | |
| 1231 ngx_http_upstream_finalize_request(r, u, | |
| 1232 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1233 return; | |
| 1234 } | |
| 1235 | |
| 577 | 1236 *r->headers_out.www_authenticate = |
| 529 | 1237 *u->headers_in.www_authenticate; |
| 1238 } | |
| 1239 | |
| 487 | 1240 ngx_http_upstream_finalize_request(r, u, |
| 529 | 1241 u->headers_in.status_n); |
| 487 | 1242 return; |
| 1243 } | |
| 1244 } | |
| 1245 } | |
| 1246 } | |
| 1247 | |
| 681 | 1248 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); |
| 1249 | |
| 515 | 1250 if (r->upstream->headers_in.x_accel_redirect) { |
|
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1251 |
| 515 | 1252 ngx_http_upstream_finalize_request(r, u, NGX_DECLINED); |
| 1253 | |
| 1254 part = &r->upstream->headers_in.headers.part; | |
| 1255 h = part->elts; | |
| 1256 | |
| 1257 for (i = 0; /* void */; i++) { | |
| 1258 | |
| 1259 if (i >= part->nelts) { | |
| 1260 if (part->next == NULL) { | |
| 1261 break; | |
| 1262 } | |
| 577 | 1263 |
| 515 | 1264 part = part->next; |
| 1265 h = part->elts; | |
| 1266 i = 0; | |
| 1267 } | |
| 1268 | |
| 649 | 1269 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, |
| 1270 h[i].lowcase_key, h[i].key.len); | |
| 1271 | |
| 1272 if (hh && hh->redirect) { | |
| 1273 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
|
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1274 ngx_http_finalize_request(r, |
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1275 NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 515 | 1276 return; |
| 1277 } | |
| 1278 } | |
| 1279 } | |
| 1280 | |
| 573 | 1281 uri = &r->upstream->headers_in.x_accel_redirect->value; |
| 1282 args.len = 0; | |
| 1283 args.data = NULL; | |
| 1284 flags = 0; | |
| 1285 | |
| 1286 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) { | |
|
757
a138c4e6031f
not do ngx_http_upstream_finalize_request() twice
Igor Sysoev <igor@sysoev.ru>
parents:
756
diff
changeset
|
1287 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND); |
| 573 | 1288 return; |
| 1289 } | |
| 1290 | |
| 1291 if (flags & NGX_HTTP_ZERO_IN_URI) { | |
| 1292 r->zero_in_uri = 1; | |
| 1293 } | |
| 1294 | |
| 653 | 1295 if (r->method != NGX_HTTP_HEAD) { |
| 1296 r->method = NGX_HTTP_GET; | |
| 1297 } | |
| 1298 | |
| 573 | 1299 ngx_http_internal_redirect(r, uri, &args); |
| 515 | 1300 return; |
| 1301 } | |
| 1302 | |
| 509 | 1303 part = &r->upstream->headers_in.headers.part; |
| 1304 h = part->elts; | |
| 1305 | |
| 1306 for (i = 0; /* void */; i++) { | |
| 479 | 1307 |
| 509 | 1308 if (i >= part->nelts) { |
| 1309 if (part->next == NULL) { | |
| 1310 break; | |
| 1311 } | |
| 577 | 1312 |
| 509 | 1313 part = part->next; |
| 1314 h = part->elts; | |
| 1315 i = 0; | |
| 1316 } | |
| 1317 | |
| 649 | 1318 if (ngx_hash_find(&u->conf->hide_headers_hash, h[i].hash, |
| 1319 h[i].lowcase_key, h[i].key.len)) | |
| 509 | 1320 { |
| 649 | 1321 continue; |
| 1322 } | |
| 1323 | |
| 1324 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash, | |
| 1325 h[i].lowcase_key, h[i].key.len); | |
| 1326 | |
| 1327 if (hh) { | |
| 1328 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) { | |
| 509 | 1329 ngx_http_upstream_finalize_request(r, u, |
| 1330 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1331 return; | |
| 1332 } | |
| 1333 | |
| 1334 continue; | |
| 1335 } | |
| 1336 | |
| 1337 if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) { | |
| 1338 ngx_http_upstream_finalize_request(r, u, | |
| 1339 NGX_HTTP_INTERNAL_SERVER_ERROR); | |
| 1340 return; | |
| 1341 } | |
| 1342 } | |
| 1343 | |
| 649 | 1344 if (r->headers_out.server && r->headers_out.server->value.data == NULL) { |
| 1345 r->headers_out.server->hash = 0; | |
| 1346 } | |
| 1347 | |
| 1348 if (r->headers_out.date && r->headers_out.date->value.data == NULL) { | |
| 1349 r->headers_out.date->hash = 0; | |
| 1350 } | |
| 1351 | |
| 529 | 1352 r->headers_out.status = u->headers_in.status_n; |
| 1353 r->headers_out.status_line = u->headers_in.status_line; | |
| 1354 | |
| 581 | 1355 if (r->headers_out.content_length_n != -1) { |
| 1356 u->length = (size_t) r->headers_out.content_length_n; | |
| 1357 | |
| 1358 } else { | |
| 1359 u->length = NGX_MAX_SIZE_T_VALUE; | |
| 1360 } | |
| 1361 | |
|
777
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1362 if (!r->subrequest_in_memory) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1363 ngx_http_upstream_send_response(r, u); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1364 return; |
|
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 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1367 /* subrequest content in memory */ |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1368 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1369 if (u->input_filter == NULL) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1370 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1371 u->input_filter = ngx_http_upstream_non_buffered_filter; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1372 u->input_filter_ctx = r; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1373 } |
|
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 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1376 ngx_http_upstream_finalize_request(r, u, |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1377 NGX_HTTP_INTERNAL_SERVER_ERROR); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1378 return; |
|
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 (u->buffer.last - u->buffer.pos >= (ssize_t) u->length) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1382 if (u->input_filter(u->input_filter_ctx, 0) == NGX_ERROR) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1383 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1384 return; |
|
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 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1387 ngx_http_upstream_finalize_request(r, u, 0); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1388 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1389 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1390 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1391 rev->handler = ngx_http_upstream_process_body_in_memory; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1392 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1393 ngx_http_upstream_process_body_in_memory(rev); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1394 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1395 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1396 |
|
1153
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1397 static ngx_int_t |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1398 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
|
1399 { |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1400 int err; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1401 socklen_t len; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1402 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1403 #if (NGX_HAVE_KQUEUE) |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1404 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1405 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
| 1166 | 1406 if (c->write->pending_eof) { |
|
1469
0a269c464eaf
connection error should be logged with "connecting to upstream" action,
Igor Sysoev <igor@sysoev.ru>
parents:
1468
diff
changeset
|
1407 c->log->action = "connecting to upstream"; |
| 1166 | 1408 (void) ngx_connection_error(c, c->write->kq_errno, |
| 1409 "kevent() reported that connect() failed"); | |
| 1410 return NGX_ERROR; | |
| 1411 } | |
|
1153
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1412 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1413 } else |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1414 #endif |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1415 { |
| 1166 | 1416 err = 0; |
| 1417 len = sizeof(int); | |
| 1418 | |
| 1419 /* | |
| 1420 * BSDs and Linux return 0 and set a pending error in err | |
| 1421 * Solaris returns -1 and sets errno | |
| 1422 */ | |
| 1423 | |
| 1424 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len) | |
| 1425 == -1) | |
| 1426 { | |
| 1427 err = ngx_errno; | |
| 1428 } | |
| 1429 | |
| 1430 if (err) { | |
|
1469
0a269c464eaf
connection error should be logged with "connecting to upstream" action,
Igor Sysoev <igor@sysoev.ru>
parents:
1468
diff
changeset
|
1431 c->log->action = "connecting to upstream"; |
| 1166 | 1432 (void) ngx_connection_error(c, err, "connect() failed"); |
| 1433 return NGX_ERROR; | |
| 1434 } | |
|
1153
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1435 } |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1436 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1437 return NGX_OK; |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1438 } |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1439 |
|
c843f3df3b85
separate ngx_http_upstream_test_connect() and
Igor Sysoev <igor@sysoev.ru>
parents:
1143
diff
changeset
|
1440 |
|
777
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1441 static void |
|
4ab852b691f5
<!--#include virtual=... set=... -->
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parents:
757
diff
changeset
|
1442 ngx_http_upstream_process_body_in_memory(ngx_event_t *rev) |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1443 { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1444 size_t size; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1445 ssize_t n; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
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parents:
757
diff
changeset
|
1446 ngx_buf_t *b; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1447 ngx_connection_t *c; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1448 ngx_http_request_t *r; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1449 ngx_http_upstream_t *u; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1450 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1451 c = rev->data; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
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|
1452 r = c->data; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1453 u = r->upstream; |
|
4ab852b691f5
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1454 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1455 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1456 "http upstream process body on memory"); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1457 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1458 if (rev->timedout) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1459 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
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parents:
757
diff
changeset
|
1460 ngx_http_upstream_finalize_request(r, u, NGX_ETIMEDOUT); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1461 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1462 } |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1463 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1464 b = &u->buffer; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1465 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1466 for ( ;; ) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1467 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1468 size = b->end - b->last; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1469 |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1470 if (size == 0) { |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1471 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1472 "upstream buffer is too small to read repsonse"); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1473 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1474 return; |
|
4ab852b691f5
<!--#include virtual=... set=... -->
Igor Sysoev <igor@sysoev.ru>
parents:
757
diff
changeset
|
1475 } |
|
4ab852b691f5
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parents:
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diff
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|
1476 |
|
4ab852b691f5
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diff
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|
1477 n = c->recv(c, b->last, size); |
|
4ab852b691f5
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diff
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|
1478 |
|
4ab852b691f5
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parents:
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diff
changeset
|
1479 if (n == NGX_AGAIN) { |
|
4ab852b691f5
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parents:
757
diff
changeset
|
1480 break; |
|
4ab852b691f5
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parents:
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diff
changeset
|
1481 } |
|
4ab852b691f5
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diff
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|
1482 |
|
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diff
changeset
|
1483 if (n == 0 || n == NGX_ERROR) { |
|
4ab852b691f5
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diff
changeset
|
1484 ngx_http_upstream_finalize_request(r, u, n); |
|
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diff
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|
1485 return; |
|
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diff
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|
1486 } |
|
4ab852b691f5
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diff
changeset
|
1487 |
|
4ab852b691f5
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diff
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|
1488 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { |
|
4ab852b691f5
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parents:
757
diff
changeset
|
1489 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
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diff
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|
1490 return; |
|
4ab852b691f5
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parents:
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diff
changeset
|
1491 } |
|
4ab852b691f5
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diff
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|
1492 |
|
4ab852b691f5
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diff
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|
1493 if (!rev->ready) { |
|
4ab852b691f5
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parents:
757
diff
changeset
|
1494 break; |
|
4ab852b691f5
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parents:
757
diff
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|
1495 } |
|
4ab852b691f5
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diff
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|
1496 } |
|
4ab852b691f5
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diff
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|
1497 |
|
4ab852b691f5
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diff
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|
1498 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { |
|
4ab852b691f5
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diff
changeset
|
1499 ngx_http_upstream_finalize_request(r, u, NGX_ERROR); |
|
4ab852b691f5
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|
1500 return; |
|
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|
1501 } |
|
4ab852b691f5
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diff
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|
1502 |
|
4ab852b691f5
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diff
changeset
|
1503 if (rev->active) { |
|
4ab852b691f5
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diff
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|
1504 ngx_add_timer(rev, u->conf->read_timeout); |
|
4ab852b691f5
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diff
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|
1505 |
|
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diff
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|
1506 } else if (rev->timer_set) { |
|
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757
diff
changeset
|
1507 ngx_del_timer(rev); |
|
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diff
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|
1508 } |
| 681 | 1509 } |
| 1510 | |
| 1511 | |
| 1512 static void | |
| 1513 ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u) | |
| 1514 { | |
| 1515 int tcp_nodelay; | |
| 1516 ssize_t size; | |
| 1517 ngx_int_t rc; | |
| 1518 ngx_event_pipe_t *p; | |
| 1519 ngx_connection_t *c; | |
| 1520 ngx_pool_cleanup_t *cl; | |
| 1521 ngx_pool_cleanup_file_t *clf; | |
| 1522 ngx_http_core_loc_conf_t *clcf; | |
| 1523 | |
| 509 | 1524 rc = ngx_http_send_header(r); |
| 479 | 1525 |
|
1031
bf1785dfb75f
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Igor Sysoev <igor@sysoev.ru>
parents:
906
diff
changeset
|
1526 if (rc == NGX_ERROR || rc > NGX_OK || r->post_action || r->header_only) { |
| 485 | 1527 ngx_http_upstream_finalize_request(r, u, rc); |
| 479 | 1528 return; |
| 1529 } | |
| 1530 | |
| 1531 u->header_sent = 1; | |
| 1532 | |
| 573 | 1533 if (r->request_body && r->request_body->temp_file) { |
| 563 | 1534 for (cl = r->pool->cleanup; cl; cl = cl->next) { |
| 1535 if (cl->handler == ngx_pool_cleanup_file) { | |
| 1536 clf = cl->data; | |
| 1537 | |
| 1538 if (clf->fd == r->request_body->temp_file->file.fd) { | |
| 1539 cl->handler(clf); | |
| 1540 cl->handler = NULL; | |
| 659 | 1541 r->request_body->temp_file->file.fd = NGX_INVALID_FILE; |
| 563 | 1542 break; |
| 1543 } | |
| 1544 } | |
| 1545 } | |
| 1546 } | |
| 1547 | |
| 583 | 1548 c = r->connection; |
| 1549 | |
| 581 | 1550 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
| 1551 | |
| 649 | 1552 if (!u->buffering) { |
| 581 | 1553 |
| 1554 if (u->input_filter == NULL) { | |
| 1555 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init; | |
| 1556 u->input_filter = ngx_http_upstream_non_buffered_filter; | |
| 1557 u->input_filter_ctx = r; | |
| 1558 } | |
| 1559 | |
| 1560 u->peer.connection->read->handler = | |
| 1561 ngx_http_upstream_process_non_buffered_body; | |
| 1562 r->write_event_handler = | |
| 1563 ngx_http_upstream_process_non_buffered_downstream; | |
| 1564 | |
| 1565 r->limit_rate = 0; | |
| 1566 | |
| 1567 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) { | |
| 1568 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1569 return; | |
| 1570 } | |
| 1571 | |
| 583 | 1572 if (clcf->tcp_nodelay && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) { |
| 1573 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay"); | |
| 1574 | |
| 1575 tcp_nodelay = 1; | |
| 1576 | |
| 1577 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY, | |
| 1578 (const void *) &tcp_nodelay, sizeof(int)) == -1) | |
| 1579 { | |
| 1580 ngx_connection_error(c, ngx_socket_errno, | |
| 1581 "setsockopt(TCP_NODELAY) failed"); | |
| 1582 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1583 return; | |
| 1584 } | |
| 1585 | |
| 1586 c->tcp_nodelay = NGX_TCP_NODELAY_SET; | |
| 1587 } | |
| 1588 | |
| 581 | 1589 size = u->buffer.last - u->buffer.pos; |
| 1590 | |
| 1591 if (size) { | |
| 1592 u->buffer.last = u->buffer.pos; | |
| 1593 | |
| 1594 if (u->input_filter(u->input_filter_ctx, size) == NGX_ERROR) { | |
| 1595 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1596 return; | |
| 1597 } | |
| 1598 | |
| 583 | 1599 ngx_http_upstream_process_non_buffered_body(c->write); |
| 581 | 1600 |
| 1601 } else { | |
| 1602 u->buffer.pos = u->buffer.start; | |
| 1603 u->buffer.last = u->buffer.start; | |
| 1604 | |
| 1605 if (ngx_http_send_special(r, NGX_HTTP_FLUSH) == NGX_ERROR) { | |
| 1606 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1607 return; | |
| 1608 } | |
|
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diff
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|
1609 |
|
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1397
diff
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|
1610 if (u->peer.connection->read->ready) { |
|
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diff
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|
1611 ngx_http_upstream_process_non_buffered_body( |
|
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diff
changeset
|
1612 u->peer.connection->read); |
|
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diff
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|
1613 } |
| 581 | 1614 } |
| 1615 | |
| 1616 return; | |
| 1617 } | |
| 1618 | |
| 479 | 1619 /* TODO: preallocate event_pipe bufs, look "Content-Length" */ |
| 1620 | |
| 1621 #if 0 | |
| 1622 | |
| 1623 if (u->cache && u->cache->ctx.file.fd != NGX_INVALID_FILE) { | |
| 1624 if (ngx_close_file(u->cache->ctx.file.fd) == NGX_FILE_ERROR) { | |
| 583 | 1625 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
| 479 | 1626 ngx_close_file_n " \"%s\" failed", |
| 1627 u->cache->ctx.file.name.data); | |
| 1628 } | |
| 1629 } | |
| 1630 | |
| 1565 | 1631 if (u->cacheable) { |
| 581 | 1632 header = (ngx_http_cache_header_t *) u->buffer->start; |
| 479 | 1633 |
| 1634 header->expires = u->cache->ctx.expires; | |
| 1635 header->last_modified = u->cache->ctx.last_modified; | |
| 1636 header->date = u->cache->ctx.date; | |
| 1637 header->length = r->headers_out.content_length_n; | |
| 1638 u->cache->ctx.length = r->headers_out.content_length_n; | |
| 1639 | |
| 1640 header->key_len = u->cache->ctx.key0.len; | |
| 1641 ngx_memcpy(&header->key, u->cache->ctx.key0.data, header->key_len); | |
| 1642 header->key[header->key_len] = LF; | |
| 1643 } | |
| 1644 | |
| 1645 #endif | |
| 1646 | |
| 581 | 1647 p = u->pipe; |
| 479 | 1648 |
| 1649 p->output_filter = (ngx_event_pipe_output_filter_pt) ngx_http_output_filter; | |
| 1650 p->output_ctx = r; | |
| 1651 p->tag = u->output.tag; | |
| 577 | 1652 p->bufs = u->conf->bufs; |
| 479 | 1653 p->busy_size = u->conf->busy_buffers_size; |
| 1654 p->upstream = u->peer.connection; | |
| 583 | 1655 p->downstream = c; |
| 479 | 1656 p->pool = r->pool; |
| 583 | 1657 p->log = c->log; |
| 577 | 1658 |
| 1565 | 1659 p->cacheable = u->cacheable || u->store; |
| 479 | 1660 |
| 501 | 1661 p->temp_file = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t)); |
| 1662 if (p->temp_file == NULL) { | |
| 479 | 1663 ngx_http_upstream_finalize_request(r, u, 0); |
| 1664 return; | |
| 1665 } | |
| 1666 | |
| 1667 p->temp_file->file.fd = NGX_INVALID_FILE; | |
| 583 | 1668 p->temp_file->file.log = c->log; |
| 479 | 1669 p->temp_file->path = u->conf->temp_path; |
| 1670 p->temp_file->pool = r->pool; | |
| 577 | 1671 |
| 1565 | 1672 if (u->cacheable || u->store) { |
| 479 | 1673 p->temp_file->persistent = 1; |
|
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1284
diff
changeset
|
1674 |
| 479 | 1675 } else { |
| 667 | 1676 p->temp_file->log_level = NGX_LOG_WARN; |
| 479 | 1677 p->temp_file->warn = "an upstream response is buffered " |
| 1678 "to a temporary file"; | |
| 1679 } | |
| 1680 | |
| 1681 p->max_temp_file_size = u->conf->max_temp_file_size; | |
| 1682 p->temp_file_write_size = u->conf->temp_file_write_size; | |
| 1683 | |
| 501 | 1684 p->preread_bufs = ngx_alloc_chain_link(r->pool); |
| 1685 if (p->preread_bufs == NULL) { | |
| 479 | 1686 ngx_http_upstream_finalize_request(r, u, 0); |
| 1687 return; | |
| 1688 } | |
|
1291
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1284
diff
changeset
|
1689 |
| 581 | 1690 p->preread_bufs->buf = &u->buffer; |
| 479 | 1691 p->preread_bufs->next = NULL; |
| 581 | 1692 u->buffer.recycled = 1; |
| 1693 | |
| 1694 p->preread_size = u->buffer.last - u->buffer.pos; | |
| 479 | 1695 |
| 1565 | 1696 if (u->cacheable) { |
|
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1284
diff
changeset
|
1697 |
| 479 | 1698 p->buf_to_file = ngx_calloc_buf(r->pool); |
| 1699 if (p->buf_to_file == NULL) { | |
| 1700 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1701 return; | |
| 1702 } | |
|
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|
1703 |
| 581 | 1704 p->buf_to_file->pos = u->buffer.start; |
| 1705 p->buf_to_file->last = u->buffer.pos; | |
| 479 | 1706 p->buf_to_file->temporary = 1; |
| 1707 } | |
| 1708 | |
| 1709 if (ngx_event_flags & NGX_USE_AIO_EVENT) { | |
| 1710 /* the posted aio operation may currupt a shadow buffer */ | |
| 1711 p->single_buf = 1; | |
| 1712 } | |
| 1713 | |
| 1714 /* TODO: p->free_bufs = 0 if use ngx_create_chain_of_bufs() */ | |
| 1715 p->free_bufs = 1; | |
| 1716 | |
| 1717 /* | |
| 581 | 1718 * event_pipe would do u->buffer.last += p->preread_size |
| 479 | 1719 * as though these bytes were read |
| 1720 */ | |
| 581 | 1721 u->buffer.last = u->buffer.pos; |
| 479 | 1722 |
| 1723 if (u->conf->cyclic_temp_file) { | |
| 1724 | |
| 1725 /* | |
| 1726 * we need to disable the use of sendfile() if we use cyclic temp file | |
| 1727 * because the writing a new data may interfere with sendfile() | |
| 1728 * that uses the same kernel file pages (at least on FreeBSD) | |
| 1729 */ | |
| 1730 | |
| 1731 p->cyclic_temp_file = 1; | |
| 583 | 1732 c->sendfile = 0; |
| 479 | 1733 |
| 1734 } else { | |
| 1735 p->cyclic_temp_file = 0; | |
| 1736 } | |
| 1737 | |
| 1738 p->read_timeout = u->conf->read_timeout; | |
| 1739 p->send_timeout = clcf->send_timeout; | |
| 1740 p->send_lowat = clcf->send_lowat; | |
| 1741 | |
| 509 | 1742 u->peer.connection->read->handler = ngx_http_upstream_process_body; |
| 1743 r->write_event_handler = ngx_http_upstream_process_downstream; | |
| 479 | 1744 |
| 1745 ngx_http_upstream_process_body(u->peer.connection->read); | |
| 1746 } | |
| 1747 | |
| 1748 | |
| 487 | 1749 static void |
| 581 | 1750 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r) |
| 1751 { | |
| 1752 ngx_http_upstream_process_non_buffered_body(r->connection->write); | |
| 1753 } | |
| 1754 | |
| 1755 | |
| 1756 static void | |
| 1757 ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev) | |
| 1758 { | |
| 1759 size_t size; | |
| 1760 ssize_t n; | |
| 1761 ngx_buf_t *b; | |
| 583 | 1762 ngx_int_t rc; |
| 581 | 1763 ngx_uint_t do_write; |
| 884 | 1764 ngx_connection_t *c, *downstream, *upstream; |
| 581 | 1765 ngx_http_request_t *r; |
| 1766 ngx_http_upstream_t *u; | |
| 1767 ngx_http_core_loc_conf_t *clcf; | |
| 1768 | |
| 1769 c = ev->data; | |
|
756
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diff
changeset
|
1770 r = c->data; |
|
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755
diff
changeset
|
1771 u = r->upstream; |
| 581 | 1772 |
| 1773 if (ev->write) { | |
| 1774 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1775 "http upstream process non buffered downstream"); | |
| 1776 c->log->action = "sending to client"; | |
| 1777 | |
| 1778 } else { | |
| 1779 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 1780 "http upstream process non buffered upstream"); | |
| 1781 c->log->action = "reading upstream"; | |
| 1782 } | |
| 1783 | |
| 1784 if (ev->timedout) { | |
| 1785 if (ev->write) { | |
| 1786 c->timedout = 1; | |
| 611 | 1787 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
| 1788 | |
| 581 | 1789 } else { |
| 611 | 1790 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
| 581 | 1791 } |
|
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1792 |
|
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|
1793 ngx_http_upstream_finalize_request(r, u, 0); |
|
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751
diff
changeset
|
1794 return; |
| 581 | 1795 } |
| 1796 | |
| 884 | 1797 downstream = r->connection; |
| 1798 upstream = u->peer.connection; | |
| 581 | 1799 |
| 1800 b = &u->buffer; | |
| 1801 | |
| 1802 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 1803 | |
| 657 | 1804 do_write = ev->write || u->length == 0; |
| 581 | 1805 |
| 1806 for ( ;; ) { | |
| 1807 | |
| 1808 if (do_write) { | |
| 1809 | |
| 1810 if (u->out_bufs || u->busy_bufs) { | |
| 583 | 1811 rc = ngx_http_output_filter(r, u->out_bufs); |
| 1812 | |
| 884 | 1813 if (downstream->destroyed) { |
| 583 | 1814 return; |
| 1815 } | |
| 1816 | |
| 1817 if (rc == NGX_ERROR) { | |
| 581 | 1818 ngx_http_upstream_finalize_request(r, u, 0); |
| 1819 return; | |
| 1820 } | |
| 1821 | |
| 1822 ngx_chain_update_chains(&u->free_bufs, &u->busy_bufs, | |
| 1823 &u->out_bufs, u->output.tag); | |
| 1824 } | |
| 1825 | |
| 1826 if (u->busy_bufs == NULL) { | |
| 1827 | |
| 1828 if (u->length == 0 | |
| 884 | 1829 || upstream->read->eof |
| 1830 || upstream->read->error) | |
| 581 | 1831 { |
| 1832 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1833 return; | |
| 1834 } | |
| 1835 | |
| 1836 b->pos = b->start; | |
| 1837 b->last = b->start; | |
| 1838 } | |
| 1839 } | |
| 1840 | |
| 1841 size = b->end - b->last; | |
| 1842 | |
| 1843 if (size > u->length) { | |
| 1844 size = u->length; | |
| 1845 } | |
| 1846 | |
| 884 | 1847 if (size && upstream->read->ready) { |
| 1848 | |
| 1849 n = upstream->recv(upstream, b->last, size); | |
| 581 | 1850 |
| 1851 if (n == NGX_AGAIN) { | |
| 1852 break; | |
| 1853 } | |
| 1854 | |
| 1855 if (n > 0) { | |
| 1856 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) { | |
| 1857 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1858 return; | |
| 1859 } | |
| 1860 } | |
| 1861 | |
| 1862 do_write = 1; | |
| 1863 | |
| 1864 continue; | |
| 1865 } | |
| 1866 | |
| 1867 break; | |
| 1868 } | |
| 1869 | |
| 884 | 1870 if (downstream->data == r) { |
| 1871 if (ngx_handle_write_event(downstream->write, clcf->send_lowat) | |
| 583 | 1872 == NGX_ERROR) |
| 1873 { | |
| 1874 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1875 return; | |
| 1876 } | |
| 581 | 1877 } |
| 1878 | |
|
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1879 if (downstream->write->active && !downstream->write->ready) { |
| 884 | 1880 ngx_add_timer(downstream->write, clcf->send_timeout); |
| 1881 | |
| 1882 } else if (downstream->write->timer_set) { | |
| 1883 ngx_del_timer(downstream->write); | |
| 581 | 1884 } |
| 1885 | |
| 884 | 1886 if (ngx_handle_read_event(upstream->read, 0) == NGX_ERROR) { |
| 581 | 1887 ngx_http_upstream_finalize_request(r, u, 0); |
| 1888 return; | |
| 1889 } | |
| 1890 | |
|
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1891 if (upstream->read->active && !upstream->read->ready) { |
| 884 | 1892 ngx_add_timer(upstream->read, u->conf->read_timeout); |
| 1893 | |
| 1894 } else if (upstream->read->timer_set) { | |
| 1895 ngx_del_timer(upstream->read); | |
| 581 | 1896 } |
| 1897 } | |
| 1898 | |
| 1899 | |
| 1900 static ngx_int_t | |
| 1901 ngx_http_upstream_non_buffered_filter_init(void *data) | |
| 1902 { | |
| 1903 return NGX_OK; | |
| 1904 } | |
| 1905 | |
| 1906 | |
| 1907 static ngx_int_t | |
| 1908 ngx_http_upstream_non_buffered_filter(void *data, ssize_t bytes) | |
| 1909 { | |
| 1910 ngx_http_request_t *r = data; | |
| 1911 | |
| 1912 ngx_buf_t *b; | |
| 1913 ngx_chain_t *cl, **ll; | |
| 1914 ngx_http_upstream_t *u; | |
| 1915 | |
| 1916 u = r->upstream; | |
| 1917 | |
| 1918 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
| 1919 ll = &cl->next; | |
| 1920 } | |
| 1921 | |
| 1922 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
| 1923 if (cl == NULL) { | |
| 1924 return NGX_ERROR; | |
| 1925 } | |
| 1926 | |
| 1927 *ll = cl; | |
| 1928 | |
| 1929 cl->buf->flush = 1; | |
| 1930 cl->buf->memory = 1; | |
| 1931 | |
| 1932 b = &u->buffer; | |
| 1933 | |
| 1934 cl->buf->pos = b->last; | |
| 1935 b->last += bytes; | |
| 1936 cl->buf->last = b->last; | |
| 1937 | |
| 1938 if (u->length == NGX_MAX_SIZE_T_VALUE) { | |
| 1939 return NGX_OK; | |
| 1940 } | |
| 1941 | |
| 1942 u->length -= bytes; | |
| 1943 | |
| 1944 return NGX_OK; | |
| 1945 } | |
| 1946 | |
| 1947 | |
| 1948 static void | |
| 509 | 1949 ngx_http_upstream_process_downstream(ngx_http_request_t *r) |
| 1950 { | |
| 1951 ngx_http_upstream_process_body(r->connection->write); | |
| 1952 } | |
| 1953 | |
| 1954 | |
| 1955 static void | |
| 487 | 1956 ngx_http_upstream_process_body(ngx_event_t *ev) |
| 479 | 1957 { |
| 509 | 1958 ngx_event_pipe_t *p; |
| 583 | 1959 ngx_connection_t *c, *downstream; |
| 1098 | 1960 ngx_http_log_ctx_t *ctx; |
| 479 | 1961 ngx_http_request_t *r; |
| 1962 ngx_http_upstream_t *u; | |
| 1963 | |
| 1964 c = ev->data; | |
| 1965 r = c->data; | |
| 1966 u = r->upstream; | |
| 583 | 1967 downstream = r->connection; |
| 479 | 1968 |
| 1969 if (ev->write) { | |
| 483 | 1970 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1971 "http upstream process downstream"); | |
| 1972 c->log->action = "sending to client"; | |
| 577 | 1973 |
| 479 | 1974 } else { |
| 483 | 1975 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 1976 "http upstream process upstream"); | |
| 1977 c->log->action = "reading upstream"; | |
| 1098 | 1978 |
| 1979 ctx = c->log->data; | |
| 1980 ctx->current_request = r; | |
| 479 | 1981 } |
| 577 | 1982 |
| 581 | 1983 p = u->pipe; |
| 479 | 1984 |
| 1985 if (ev->timedout) { | |
| 1986 if (ev->write) { | |
| 527 | 1987 if (ev->delayed) { |
| 1988 | |
| 1989 ev->timedout = 0; | |
| 1990 ev->delayed = 0; | |
| 1991 | |
| 1992 if (!ev->ready) { | |
| 1993 ngx_add_timer(ev, p->send_timeout); | |
| 1994 | |
| 1995 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) | |
| 1996 { | |
| 1997 ngx_http_upstream_finalize_request(r, u, 0); | |
| 1998 return; | |
| 1999 } | |
| 2000 | |
| 2001 return; | |
| 2002 } | |
| 2003 | |
| 2004 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { | |
| 583 | 2005 |
| 2006 if (downstream->destroyed) { | |
| 2007 return; | |
| 2008 } | |
| 2009 | |
| 527 | 2010 ngx_http_upstream_finalize_request(r, u, 0); |
| 2011 return; | |
| 2012 } | |
| 2013 | |
| 2014 } else { | |
| 2015 p->downstream_error = 1; | |
| 577 | 2016 c->timedout = 1; |
| 611 | 2017 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out"); |
| 527 | 2018 } |
| 479 | 2019 |
| 2020 } else { | |
| 577 | 2021 p->upstream_error = 1; |
| 611 | 2022 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out"); |
| 479 | 2023 } |
| 2024 | |
| 2025 } else { | |
| 527 | 2026 if (ev->write && ev->delayed) { |
| 2027 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 2028 "http downstream delayed"); | |
| 2029 | |
| 2030 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) { | |
| 2031 return; | |
| 2032 } | |
| 2033 | |
| 2034 return; | |
| 2035 } | |
| 2036 | |
| 479 | 2037 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) { |
| 583 | 2038 |
| 2039 if (downstream->destroyed) { | |
| 2040 return; | |
| 2041 } | |
| 2042 | |
| 479 | 2043 ngx_http_upstream_finalize_request(r, u, 0); |
| 2044 return; | |
| 2045 } | |
| 2046 } | |
| 577 | 2047 |
| 479 | 2048 if (u->peer.connection) { |
| 2049 | |
|
1291
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2050 if (u->store) { |
|
13a4ce6e7f1e
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|
2051 |
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|
2052 if (p->upstream_eof && u->headers_in.status_n == NGX_HTTP_OK) { |
|
13a4ce6e7f1e
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|
2053 |
|
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|
2054 ngx_http_upstream_store(r, u); |
|
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|
2055 |
|
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|
2056 } else if ((p->upstream_error |
|
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|
2057 || (p->upstream_eof |
|
13a4ce6e7f1e
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|
2058 && u->headers_in.status_n != NGX_HTTP_OK)) |
|
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|
2059 && u->pipe->temp_file->file.fd != NGX_INVALID_FILE) |
|
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|
2060 { |
|
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|
2061 if (ngx_delete_file(u->pipe->temp_file->file.name.data) |
|
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|
2062 == NGX_FILE_ERROR) |
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2063 { |
|
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2064 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno, |
|
13a4ce6e7f1e
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2065 ngx_delete_file_n " \"%s\" failed", |
|
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2066 u->pipe->temp_file->file.name.data); |
|
13a4ce6e7f1e
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2067 } |
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|
2068 } |
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|
2069 } |
|
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|
2070 |
| 479 | 2071 #if (NGX_HTTP_FILE_CACHE) |
| 2072 | |
| 1565 | 2073 if (p->upstream_done && u->cacheable) { |
| 479 | 2074 if (ngx_http_cache_update(r) == NGX_ERROR) { |
| 2075 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 2076 ngx_http_upstream_finalize_request(r, u, 0); | |
| 2077 return; | |
| 2078 } | |
| 2079 | |
| 1565 | 2080 } else if (p->upstream_eof && u->cacheable) { |
| 479 | 2081 |
| 2082 /* TODO: check length & update cache */ | |
| 2083 | |
| 2084 if (ngx_http_cache_update(r) == NGX_ERROR) { | |
| 2085 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 2086 ngx_http_upstream_finalize_request(r, u, 0); | |
| 2087 return; | |
| 2088 } | |
| 2089 } | |
| 2090 | |
| 2091 #endif | |
| 2092 | |
| 2093 if (p->upstream_done || p->upstream_eof || p->upstream_error) { | |
| 483 | 2094 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 2095 "http upstream exit: %p", p->out); | |
| 479 | 2096 #if 0 |
| 2097 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 2098 #endif | |
| 2099 ngx_http_upstream_finalize_request(r, u, 0); | |
| 2100 return; | |
| 2101 } | |
| 2102 } | |
| 2103 | |
| 2104 if (p->downstream_error) { | |
| 483 | 2105 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 2106 "http upstream downstream error"); | |
| 479 | 2107 |
| 1565 | 2108 if (!u->cacheable && u->peer.connection) { |
| 479 | 2109 ngx_http_upstream_finalize_request(r, u, 0); |
| 2110 } | |
| 2111 } | |
| 2112 } | |
| 2113 | |
| 2114 | |
| 487 | 2115 static void |
|
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2116 ngx_http_upstream_store(ngx_http_request_t *r, ngx_http_upstream_t *u) |
|
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|
2117 { |
|
13a4ce6e7f1e
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|
2118 char *failed; |
|
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|
2119 u_char *name; |
|
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|
2120 size_t root; |
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|
2121 time_t lm; |
|
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|
2122 ngx_err_t err; |
|
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|
2123 ngx_str_t *temp, path, *last_modified; |
|
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|
2124 ngx_temp_file_t *tf; |
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|
2125 |
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|
2126 if (u->pipe->temp_file->file.fd == NGX_INVALID_FILE) { |
|
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|
2127 |
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|
2128 /* create file for empty 200 response */ |
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2129 |
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2130 tf = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t)); |
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2131 if (tf == NULL) { |
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|
2132 return; |
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2133 } |
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2134 |
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2135 tf->file.fd = NGX_INVALID_FILE; |
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2136 tf->file.log = r->connection->log; |
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2137 tf->path = u->conf->temp_path; |
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2138 tf->pool = r->pool; |
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|
2139 tf->persistent = 1; |
|
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2140 |
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|
2141 if (ngx_create_temp_file(&tf->file, tf->path, tf->pool, |
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2142 tf->persistent, tf->clean, tf->access) |
|
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2143 != NGX_OK) |
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2144 { |
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2145 return; |
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2146 } |
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2147 |
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2148 u->pipe->temp_file = tf; |
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2149 } |
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2150 |
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2151 temp = &u->pipe->temp_file->file.name; |
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2152 |
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2153 #if !(NGX_WIN32) |
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proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2154 |
|
1295
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2155 if (ngx_change_file_access(temp->data, u->conf->store_access) |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2156 == NGX_FILE_ERROR) |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2157 { |
|
1291
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2158 err = ngx_errno; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2159 failed = ngx_change_file_access_n; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2160 name = temp->data; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2161 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2162 goto failed; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2163 } |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2164 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2165 #endif |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2166 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2167 if (r->upstream->headers_in.last_modified) { |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2168 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2169 last_modified = &r->upstream->headers_in.last_modified->value; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2170 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2171 lm = ngx_http_parse_time(last_modified->data, last_modified->len); |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2172 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2173 if (lm != NGX_ERROR) { |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2174 if (ngx_set_file_time(temp->data, u->pipe->temp_file->file.fd, lm) |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2175 != NGX_OK) |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2176 { |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2177 err = ngx_errno; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2178 failed = ngx_set_file_time_n; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2179 name = temp->data; |
|
1295
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2180 |
|
1291
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2181 goto failed; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2182 } |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2183 } |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2184 } |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2185 |
|
1295
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2186 if (u->conf->store_lengths == NULL) { |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2187 |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2188 ngx_http_map_uri_to_path(r, &path, &root, 0); |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2189 |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2190 } else { |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2191 if (ngx_http_script_run(r, &path, u->conf->store_lengths->elts, 0, |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2192 u->conf->store_values->elts) |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2193 == NULL) |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2194 { |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2195 return; |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2196 } |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2197 } |
|
1291
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2198 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2199 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2200 "upstream stores \"%s\" to \"%s\"", temp->data, path.data); |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2201 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2202 failed = ngx_rename_file_n; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2203 name = path.data; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2204 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2205 if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) { |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2206 return; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2207 } |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2208 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2209 err = ngx_errno; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2210 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2211 if (err == NGX_ENOENT) { |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2212 |
|
1295
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2213 err = ngx_create_full_path(path.data, |
|
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2214 ngx_dir_access(u->conf->store_access)); |
|
1291
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2215 if (err == 0) { |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2216 if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) { |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2217 return; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2218 } |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2219 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2220 err = ngx_errno; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2221 } |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2222 } |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2223 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2224 #if (NGX_WIN32) |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2225 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2226 if (err == NGX_EEXIST) { |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2227 if (ngx_win32_rename_file(temp, &path, r->pool) != NGX_ERROR) { |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2228 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2229 if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) { |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2230 return; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2231 } |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2232 } |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2233 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2234 err = ngx_errno; |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2235 } |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2236 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2237 #endif |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2238 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2239 failed: |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2240 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2241 if (ngx_delete_file(temp->data) == NGX_FILE_ERROR) { |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2242 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno, |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2243 ngx_delete_file_n " \"%s\" failed", |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2244 temp->data); |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2245 } |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2246 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2247 ngx_log_error(NGX_LOG_CRIT, r->connection->log, err, |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2248 "%s \"%s\" failed", failed, name); |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2249 } |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2250 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2251 |
|
13a4ce6e7f1e
proxy_store and fastcgi_store
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
2252 static void |
| 487 | 2253 ngx_http_upstream_dummy_handler(ngx_event_t *wev) |
| 479 | 2254 { |
| 2255 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, | |
| 2256 "http upstream dummy handler"); | |
| 2257 } | |
| 2258 | |
| 2259 | |
| 487 | 2260 static void |
| 2261 ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u, | |
| 2262 ngx_uint_t ft_type) | |
| 479 | 2263 { |
| 884 | 2264 ngx_uint_t status, state; |
| 479 | 2265 |
| 2266 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 884 | 2267 "http next upstream, %xi", ft_type); |
| 479 | 2268 |
| 2269 #if 0 | |
| 2270 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock); | |
| 2271 #endif | |
| 2272 | |
| 525 | 2273 if (ft_type == NGX_HTTP_UPSTREAM_FT_HTTP_404) { |
| 884 | 2274 state = NGX_PEER_NEXT; |
| 525 | 2275 } else { |
| 884 | 2276 state = NGX_PEER_FAILED; |
| 479 | 2277 } |
| 525 | 2278 |
| 1378 | 2279 if (ft_type != NGX_HTTP_UPSTREAM_FT_NOLIVE) { |
| 2280 u->peer.free(&u->peer, u->peer.data, state); | |
| 2281 } | |
| 525 | 2282 |
| 479 | 2283 if (ft_type == NGX_HTTP_UPSTREAM_FT_TIMEOUT) { |
| 2284 ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_ETIMEDOUT, | |
| 2285 "upstream timed out"); | |
| 2286 } | |
| 577 | 2287 |
| 479 | 2288 if (u->peer.cached && ft_type == NGX_HTTP_UPSTREAM_FT_ERROR) { |
| 2289 status = 0; | |
| 2290 | |
| 2291 } else { | |
| 2292 switch(ft_type) { | |
| 2293 | |
| 2294 case NGX_HTTP_UPSTREAM_FT_TIMEOUT: | |
| 2295 status = NGX_HTTP_GATEWAY_TIME_OUT; | |
| 2296 break; | |
| 2297 | |
| 2298 case NGX_HTTP_UPSTREAM_FT_HTTP_500: | |
| 2299 status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 2300 break; | |
| 2301 | |
| 2302 case NGX_HTTP_UPSTREAM_FT_HTTP_404: | |
| 2303 status = NGX_HTTP_NOT_FOUND; | |
| 2304 break; | |
| 2305 | |
| 2306 /* | |
| 2307 * NGX_HTTP_UPSTREAM_FT_BUSY_LOCK and NGX_HTTP_UPSTREAM_FT_MAX_WAITING | |
| 2308 * never reach here | |
| 2309 */ | |
| 2310 | |
| 2311 default: | |
| 2312 status = NGX_HTTP_BAD_GATEWAY; | |
| 2313 } | |
| 2314 } | |
| 2315 | |
| 583 | 2316 if (r->connection->error) { |
| 479 | 2317 ngx_http_upstream_finalize_request(r, u, |
| 2318 NGX_HTTP_CLIENT_CLOSED_REQUEST); | |
| 2319 return; | |
| 2320 } | |
| 2321 | |
| 2322 if (status) { | |
| 2323 u->state->status = status; | |
| 2324 | |
| 525 | 2325 if (u->peer.tries == 0 || !(u->conf->next_upstream & ft_type)) { |
| 479 | 2326 |
| 2327 #if (NGX_HTTP_CACHE) | |
| 2328 | |
| 2329 if (u->stale && (u->conf->use_stale & ft_type)) { | |
| 2330 ngx_http_upstream_finalize_request(r, u, | |
| 525 | 2331 ngx_http_send_cached_response(r)); |
| 479 | 2332 return; |
| 2333 } | |
| 2334 | |
| 2335 #endif | |
| 2336 | |
| 2337 ngx_http_upstream_finalize_request(r, u, status); | |
| 2338 return; | |
| 2339 } | |
| 2340 } | |
| 2341 | |
| 2342 if (u->peer.connection) { | |
| 2343 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2344 "close http upstream connection: %d", | |
| 2345 u->peer.connection->fd); | |
| 577 | 2346 #if (NGX_HTTP_SSL) |
| 884 | 2347 |
| 577 | 2348 if (u->peer.connection->ssl) { |
| 884 | 2349 u->peer.connection->ssl->no_wait_shutdown = 1; |
| 2350 u->peer.connection->ssl->no_send_shutdown = 1; | |
| 2351 | |
| 2352 (void) ngx_ssl_shutdown(u->peer.connection); | |
| 577 | 2353 } |
| 2354 #endif | |
| 884 | 2355 |
| 479 | 2356 ngx_close_connection(u->peer.connection); |
| 2357 } | |
| 2358 | |
| 2359 #if 0 | |
| 2360 if (u->conf->busy_lock && !u->busy_locked) { | |
| 2361 ngx_http_upstream_busy_lock(p); | |
| 2362 return; | |
| 2363 } | |
| 2364 #endif | |
| 2365 | |
| 2366 ngx_http_upstream_connect(r, u); | |
| 2367 } | |
| 2368 | |
| 2369 | |
| 487 | 2370 static void |
| 569 | 2371 ngx_http_upstream_cleanup(void *data) |
| 2372 { | |
| 2373 ngx_http_request_t *r = data; | |
| 2374 | |
| 2375 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2376 "cleanup http upstream request: \"%V\"", &r->uri); | |
| 2377 | |
| 1658 | 2378 if (r->upstream->resolved && r->upstream->resolved->ctx) { |
| 2379 ngx_resolve_name_done(r->upstream->resolved->ctx); | |
| 2380 } | |
| 2381 | |
| 569 | 2382 ngx_http_upstream_finalize_request(r, r->upstream, NGX_DONE); |
| 2383 } | |
| 2384 | |
| 2385 | |
| 2386 static void | |
| 487 | 2387 ngx_http_upstream_finalize_request(ngx_http_request_t *r, |
| 2388 ngx_http_upstream_t *u, ngx_int_t rc) | |
| 479 | 2389 { |
|
889
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parents:
888
diff
changeset
|
2390 ngx_time_t *tp; |
| 563 | 2391 |
| 483 | 2392 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| 2393 "finalize http upstream request: %i", rc); | |
| 479 | 2394 |
| 569 | 2395 *u->cleanup = NULL; |
| 2396 | |
| 1658 | 2397 if (u->state && u->state->response_sec) { |
| 563 | 2398 tp = ngx_timeofday(); |
|
889
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Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2399 u->state->response_sec = tp->sec - u->state->response_sec; |
|
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parents:
888
diff
changeset
|
2400 u->state->response_msec = tp->msec - u->state->response_msec; |
| 563 | 2401 } |
| 2402 | |
| 479 | 2403 u->finalize_request(r, rc); |
| 2404 | |
| 1658 | 2405 if (u->peer.free) { |
| 2406 u->peer.free(&u->peer, u->peer.data, 0); | |
| 2407 } | |
| 884 | 2408 |
| 479 | 2409 if (u->peer.connection) { |
| 884 | 2410 |
| 577 | 2411 #if (NGX_HTTP_SSL) |
| 2412 | |
| 2413 /* TODO: do not shutdown persistent connection */ | |
| 2414 | |
| 2415 if (u->peer.connection->ssl) { | |
| 884 | 2416 |
| 2417 /* | |
| 2418 * We send the "close notify" shutdown alert to the upstream only | |
| 2419 * and do not wait its "close notify" shutdown alert. | |
| 2420 * It is acceptable according to the TLS standard. | |
| 2421 */ | |
| 2422 | |
| 2423 u->peer.connection->ssl->no_wait_shutdown = 1; | |
| 2424 | |
| 2425 (void) ngx_ssl_shutdown(u->peer.connection); | |
| 577 | 2426 } |
| 2427 #endif | |
| 884 | 2428 |
| 2429 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2430 "close http upstream connection: %d", | |
| 2431 u->peer.connection->fd); | |
| 2432 | |
| 479 | 2433 ngx_close_connection(u->peer.connection); |
| 2434 } | |
| 2435 | |
| 483 | 2436 u->peer.connection = NULL; |
| 2437 | |
| 563 | 2438 if (u->header_sent && (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE)) |
| 479 | 2439 { |
| 2440 rc = 0; | |
| 2441 } | |
| 2442 | |
| 581 | 2443 if (u->pipe && u->pipe->temp_file) { |
| 479 | 2444 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| 2445 "http upstream temp fd: %d", | |
| 581 | 2446 u->pipe->temp_file->file.fd); |
| 479 | 2447 } |
| 2448 | |
| 2449 #if 0 | |
| 2450 if (u->cache) { | |
| 2451 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 483 | 2452 "http upstream cache fd: %d", |
| 479 | 2453 u->cache->ctx.file.fd); |
| 2454 } | |
| 2455 #endif | |
| 2456 | |
| 515 | 2457 if (rc == NGX_DECLINED) { |
| 2458 return; | |
| 2459 } | |
| 2460 | |
| 483 | 2461 r->connection->log->action = "sending to client"; |
| 2462 | |
|
1259
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parents:
1245
diff
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|
2463 if (rc == 0) { |
|
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diff
changeset
|
2464 if (r == r->main) { |
|
05b5236c2ff5
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parents:
1245
diff
changeset
|
2465 if (!r->post_action) { |
|
05b5236c2ff5
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parents:
1245
diff
changeset
|
2466 rc = ngx_http_send_special(r, NGX_HTTP_LAST); |
|
05b5236c2ff5
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parents:
1245
diff
changeset
|
2467 } |
|
05b5236c2ff5
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parents:
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diff
changeset
|
2468 |
|
05b5236c2ff5
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parents:
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diff
changeset
|
2469 } else { |
|
05b5236c2ff5
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parents:
1245
diff
changeset
|
2470 if (r->out) { |
|
05b5236c2ff5
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parents:
1245
diff
changeset
|
2471 rc = NGX_AGAIN; |
|
05b5236c2ff5
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parents:
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diff
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|
2472 } |
|
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parents:
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diff
changeset
|
2473 } |
| 479 | 2474 } |
| 2475 | |
| 2476 ngx_http_finalize_request(r, rc); | |
| 2477 } | |
| 2478 | |
| 2479 | |
| 509 | 2480 static ngx_int_t |
| 2481 ngx_http_upstream_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2482 ngx_uint_t offset) | |
| 577 | 2483 { |
| 509 | 2484 ngx_table_elt_t **ph; |
| 577 | 2485 |
| 509 | 2486 ph = (ngx_table_elt_t **) ((char *) &r->upstream->headers_in + offset); |
| 2487 | |
| 2488 if (*ph == NULL) { | |
| 2489 *ph = h; | |
| 2490 } | |
| 2491 | |
| 2492 return NGX_OK; | |
| 2493 } | |
| 2494 | |
| 2495 | |
| 2496 static ngx_int_t | |
| 2497 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | |
| 2498 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2499 { | |
| 2500 ngx_array_t *pa; | |
| 2501 ngx_table_elt_t **ph; | |
| 2502 | |
| 2503 pa = (ngx_array_t *) ((char *) &r->upstream->headers_in + offset); | |
| 2504 | |
| 2505 if (pa->elts == NULL) { | |
| 2506 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
| 2507 { | |
| 2508 return NGX_ERROR; | |
| 2509 } | |
| 2510 } | |
| 2511 | |
| 2512 ph = ngx_array_push(pa); | |
| 2513 if (ph == NULL) { | |
| 2514 return NGX_ERROR; | |
| 2515 } | |
| 2516 | |
| 2517 *ph = h; | |
| 2518 | |
| 2519 return NGX_OK; | |
| 2520 } | |
| 2521 | |
| 2522 | |
| 2523 static ngx_int_t | |
| 2524 ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2525 ngx_uint_t offset) | |
| 2526 { | |
| 2527 return NGX_OK; | |
| 2528 } | |
| 2529 | |
| 2530 | |
| 2531 static ngx_int_t | |
| 527 | 2532 ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2533 ngx_uint_t offset) | |
| 577 | 2534 { |
| 527 | 2535 ngx_int_t n; |
| 2536 | |
| 2537 r->upstream->headers_in.x_accel_limit_rate = h; | |
| 2538 | |
| 2539 n = ngx_atoi(h->value.data, h->value.len); | |
| 2540 | |
| 2541 if (n != NGX_ERROR) { | |
| 2542 r->limit_rate = (size_t) n; | |
| 2543 } | |
| 2544 | |
| 2545 return NGX_OK; | |
| 2546 } | |
| 2547 | |
| 2548 | |
| 2549 static ngx_int_t | |
| 649 | 2550 ngx_http_upstream_process_buffering(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2551 ngx_uint_t offset) | |
| 2552 { | |
| 2553 u_char c0, c1, c2; | |
| 2554 | |
| 2555 if (r->upstream->conf->change_buffering) { | |
| 2556 | |
| 2557 if (h->value.len == 2) { | |
| 2558 c0 = ngx_tolower(h->value.data[0]); | |
| 2559 c1 = ngx_tolower(h->value.data[1]); | |
| 2560 | |
| 2561 if (c0 == 'n' && c1 == 'o') { | |
| 2562 r->upstream->buffering = 0; | |
| 2563 } | |
| 2564 | |
| 2565 } else if (h->value.len == 3) { | |
| 2566 c0 = ngx_tolower(h->value.data[0]); | |
| 2567 c1 = ngx_tolower(h->value.data[1]); | |
| 2568 c2 = ngx_tolower(h->value.data[2]); | |
| 2569 | |
| 2570 if (c0 == 'y' && c1 == 'e' && c2 == 's') { | |
| 2571 r->upstream->buffering = 1; | |
| 2572 } | |
| 2573 } | |
| 2574 } | |
| 2575 | |
| 2576 return NGX_OK; | |
| 2577 } | |
| 2578 | |
| 2579 | |
| 2580 static ngx_int_t | |
| 657 | 2581 ngx_http_upstream_process_charset(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2582 ngx_uint_t offset) | |
| 2583 { | |
| 2584 r->headers_out.override_charset = &h->value; | |
| 2585 | |
| 2586 return NGX_OK; | |
| 2587 } | |
| 2588 | |
| 2589 | |
| 2590 static ngx_int_t | |
| 509 | 2591 ngx_http_upstream_copy_header_line(ngx_http_request_t *r, ngx_table_elt_t *h, |
| 2592 ngx_uint_t offset) | |
| 2593 { | |
| 573 | 2594 ngx_table_elt_t *ho, **ph; |
| 509 | 2595 |
| 2596 ho = ngx_list_push(&r->headers_out.headers); | |
| 2597 if (ho == NULL) { | |
| 2598 return NGX_ERROR; | |
| 2599 } | |
| 2600 | |
| 2601 *ho = *h; | |
| 2602 | |
| 573 | 2603 if (offset) { |
| 2604 ph = (ngx_table_elt_t **) ((char *) &r->headers_out + offset); | |
| 2605 *ph = ho; | |
| 2606 } | |
| 2607 | |
| 509 | 2608 return NGX_OK; |
| 2609 } | |
| 2610 | |
| 2611 | |
| 2612 static ngx_int_t | |
| 2613 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r, | |
| 2614 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2615 { | |
| 2616 ngx_array_t *pa; | |
| 2617 ngx_table_elt_t *ho, **ph; | |
| 2618 | |
| 2619 pa = (ngx_array_t *) ((char *) &r->headers_out + offset); | |
| 2620 | |
| 2621 if (pa->elts == NULL) { | |
| 2622 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK) | |
| 2623 { | |
| 2624 return NGX_ERROR; | |
| 2625 } | |
| 2626 } | |
| 2627 | |
| 2628 ph = ngx_array_push(pa); | |
| 2629 if (ph == NULL) { | |
| 2630 return NGX_ERROR; | |
| 2631 } | |
| 2632 | |
| 2633 ho = ngx_list_push(&r->headers_out.headers); | |
| 2634 if (ho == NULL) { | |
| 2635 return NGX_ERROR; | |
| 2636 } | |
| 2637 | |
| 2638 *ho = *h; | |
| 2639 *ph = ho; | |
| 2640 | |
| 2641 return NGX_OK; | |
| 2642 } | |
| 2643 | |
| 2644 | |
| 2645 static ngx_int_t | |
| 2646 ngx_http_upstream_copy_content_type(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2647 ngx_uint_t offset) | |
| 2648 { | |
| 657 | 2649 u_char *p, *last; |
| 2650 | |
| 2651 r->headers_out.content_type_len = h->value.len; | |
| 509 | 2652 r->headers_out.content_type = h->value; |
| 2653 | |
| 657 | 2654 for (p = h->value.data; *p; p++) { |
| 2655 | |
| 2656 if (*p != ';') { | |
| 2657 continue; | |
| 2658 } | |
| 2659 | |
| 2660 last = p; | |
| 2661 | |
| 2662 while (*++p == ' ') { /* void */ } | |
| 2663 | |
|
1107
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
1098
diff
changeset
|
2664 if (ngx_strncasecmp(p, (u_char *) "charset=", 8) != 0) { |
| 657 | 2665 continue; |
| 2666 } | |
| 2667 | |
| 2668 p += 8; | |
| 2669 | |
| 2670 r->headers_out.content_type_len = last - h->value.data; | |
| 2671 | |
| 2672 r->headers_out.charset.len = h->value.data + h->value.len - p; | |
| 2673 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
|
2674 |
|
c6c42497106c
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parents:
1109
diff
changeset
|
2675 return NGX_OK; |
| 657 | 2676 } |
| 2677 | |
| 509 | 2678 return NGX_OK; |
| 2679 } | |
| 2680 | |
| 2681 | |
| 2682 static ngx_int_t | |
| 2683 ngx_http_upstream_copy_content_length(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2684 ngx_uint_t offset) | |
| 2685 { | |
| 2686 ngx_table_elt_t *ho; | |
| 2687 | |
| 2688 ho = ngx_list_push(&r->headers_out.headers); | |
| 2689 if (ho == NULL) { | |
| 2690 return NGX_ERROR; | |
| 2691 } | |
| 2692 | |
| 2693 *ho = *h; | |
| 2694 | |
| 2695 r->headers_out.content_length = ho; | |
| 2696 r->headers_out.content_length_n = ngx_atoof(h->value.data, h->value.len); | |
| 2697 | |
| 2698 return NGX_OK; | |
| 2699 } | |
| 2700 | |
| 2701 | |
| 2702 static ngx_int_t | |
| 2703 ngx_http_upstream_rewrite_location(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2704 ngx_uint_t offset) | |
| 2705 { | |
| 2706 ngx_int_t rc; | |
| 2707 ngx_table_elt_t *ho; | |
| 2708 | |
| 2709 ho = ngx_list_push(&r->headers_out.headers); | |
| 2710 if (ho == NULL) { | |
| 2711 return NGX_ERROR; | |
| 2712 } | |
| 2713 | |
| 2714 *ho = *h; | |
| 2715 | |
| 2716 if (r->upstream->rewrite_redirect) { | |
| 2717 rc = r->upstream->rewrite_redirect(r, ho, 0); | |
| 2718 | |
| 529 | 2719 if (rc == NGX_DECLINED) { |
| 2720 return NGX_OK; | |
| 2721 } | |
| 2722 | |
| 509 | 2723 if (rc == NGX_OK) { |
| 2724 r->headers_out.location = ho; | |
| 2725 | |
| 2726 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2727 "rewritten location: \"%V\"", &ho->value); | |
| 2728 } | |
| 2729 | |
| 2730 return rc; | |
| 2731 } | |
| 2732 | |
|
1653
ea681a6a0c61
set r->headers_out.location for non-local redirects
Igor Sysoev <igor@sysoev.ru>
parents:
1640
diff
changeset
|
2733 if (ho->value.data[0] != '/') { |
|
ea681a6a0c61
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Igor Sysoev <igor@sysoev.ru>
parents:
1640
diff
changeset
|
2734 r->headers_out.location = ho; |
|
ea681a6a0c61
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parents:
1640
diff
changeset
|
2735 } |
|
ea681a6a0c61
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parents:
1640
diff
changeset
|
2736 |
| 509 | 2737 /* |
| 2738 * we do not set r->headers_out.location here to avoid the handling | |
| 2739 * the local redirects without a host name by ngx_http_header_filter() | |
| 2740 */ | |
| 2741 | |
| 2742 return NGX_OK; | |
| 2743 } | |
| 2744 | |
| 2745 | |
| 2746 static ngx_int_t | |
| 2747 ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, ngx_table_elt_t *h, | |
| 2748 ngx_uint_t offset) | |
| 2749 { | |
| 2750 u_char *p; | |
| 2751 ngx_int_t rc; | |
| 2752 ngx_table_elt_t *ho; | |
| 2753 | |
| 2754 ho = ngx_list_push(&r->headers_out.headers); | |
| 2755 if (ho == NULL) { | |
| 2756 return NGX_ERROR; | |
| 2757 } | |
| 2758 | |
| 2759 *ho = *h; | |
| 2760 | |
| 2761 if (r->upstream->rewrite_redirect) { | |
| 2762 | |
| 1549 | 2763 p = ngx_strcasestrn(ho->value.data, "url=", 4 - 1); |
| 509 | 2764 |
| 2765 if (p) { | |
| 2766 rc = r->upstream->rewrite_redirect(r, ho, p + 4 - ho->value.data); | |
| 2767 | |
| 2768 } else { | |
| 2769 return NGX_OK; | |
| 2770 } | |
| 2771 | |
| 529 | 2772 if (rc == NGX_DECLINED) { |
| 2773 return NGX_OK; | |
| 2774 } | |
| 2775 | |
| 509 | 2776 if (rc == NGX_OK) { |
| 1654 | 2777 r->headers_out.refresh = ho; |
| 2778 | |
| 509 | 2779 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| 2780 "rewritten refresh: \"%V\"", &ho->value); | |
| 2781 } | |
| 2782 | |
| 2783 return rc; | |
| 2784 } | |
| 2785 | |
| 1654 | 2786 r->headers_out.refresh = ho; |
| 2787 | |
| 509 | 2788 return NGX_OK; |
| 2789 } | |
| 2790 | |
| 2791 | |
| 2792 #if (NGX_HTTP_GZIP) | |
| 2793 | |
| 2794 static ngx_int_t | |
| 2795 ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r, | |
| 2796 ngx_table_elt_t *h, ngx_uint_t offset) | |
| 2797 { | |
| 2798 ngx_table_elt_t *ho; | |
| 2799 | |
| 2800 ho = ngx_list_push(&r->headers_out.headers); | |
| 2801 if (ho == NULL) { | |
| 2802 return NGX_ERROR; | |
| 2803 } | |
| 2804 | |
| 2805 *ho = *h; | |
| 2806 | |
| 2807 r->headers_out.content_encoding = ho; | |
| 2808 | |
| 2809 return NGX_OK; | |
| 2810 } | |
| 2811 | |
| 2812 #endif | |
| 2813 | |
| 2814 | |
| 487 | 2815 static ngx_int_t |
| 573 | 2816 ngx_http_upstream_add_variables(ngx_conf_t *cf) |
| 479 | 2817 { |
| 880 | 2818 ngx_http_variable_t *var, *v; |
| 479 | 2819 |
| 573 | 2820 for (v = ngx_http_upstream_vars; v->name.len; v++) { |
| 2821 var = ngx_http_add_variable(cf, &v->name, v->flags); | |
| 2822 if (var == NULL) { | |
| 2823 return NGX_ERROR; | |
| 2824 } | |
| 2825 | |
| 637 | 2826 var->get_handler = v->get_handler; |
| 573 | 2827 var->data = v->data; |
| 2828 } | |
| 2829 | |
| 479 | 2830 return NGX_OK; |
| 2831 } | |
| 509 | 2832 |
| 2833 | |
| 573 | 2834 static ngx_int_t |
| 1181 | 2835 ngx_http_upstream_addr_variable(ngx_http_request_t *r, |
| 2836 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2837 { | |
| 2838 u_char *p; | |
| 2839 size_t len; | |
| 2840 ngx_uint_t i; | |
| 2841 ngx_http_upstream_state_t *state; | |
| 2842 | |
| 2843 v->valid = 1; | |
| 1565 | 2844 v->no_cacheable = 0; |
| 1181 | 2845 v->not_found = 0; |
| 2846 | |
| 2847 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) { | |
| 2848 v->not_found = 1; | |
| 2849 return NGX_OK; | |
| 2850 } | |
| 2851 | |
| 2852 len = 0; | |
| 2853 state = r->upstream_states->elts; | |
| 2854 | |
| 2855 for (i = 0; i < r->upstream_states->nelts; i++) { | |
| 2856 if (state[i].peer) { | |
| 2857 len += state[i].peer->len + 2; | |
| 2858 | |
| 2859 } else { | |
| 2860 len += 3; | |
| 2861 } | |
| 2862 } | |
| 2863 | |
| 2864 p = ngx_palloc(r->pool, len); | |
| 2865 if (p == NULL) { | |
| 2866 return NGX_ERROR; | |
| 2867 } | |
| 2868 | |
| 2869 v->data = p; | |
| 2870 | |
| 2871 i = 0; | |
| 2872 | |
| 2873 for ( ;; ) { | |
| 2874 if (state[i].peer) { | |
| 2875 p = ngx_cpymem(p, state[i].peer->data, state[i].peer->len); | |
| 2876 } | |
| 2877 | |
| 2878 if (++i == r->upstream_states->nelts) { | |
| 2879 break; | |
| 2880 } | |
| 2881 | |
| 2882 if (state[i].peer) { | |
| 2883 *p++ = ','; | |
| 2884 *p++ = ' '; | |
| 2885 | |
| 2886 } else { | |
| 2887 *p++ = ' '; | |
| 2888 *p++ = ':'; | |
| 2889 *p++ = ' '; | |
| 2890 | |
| 2891 if (++i == r->upstream_states->nelts) { | |
| 2892 break; | |
| 2893 } | |
| 2894 | |
| 2895 continue; | |
| 2896 } | |
| 2897 } | |
| 2898 | |
| 2899 v->len = p - v->data; | |
| 2900 | |
| 2901 return NGX_OK; | |
| 2902 } | |
| 2903 | |
| 2904 | |
| 2905 static ngx_int_t | |
| 573 | 2906 ngx_http_upstream_status_variable(ngx_http_request_t *r, |
| 2907 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2908 { | |
| 2909 u_char *p; | |
| 2910 size_t len; | |
| 2911 ngx_uint_t i; | |
| 2912 ngx_http_upstream_state_t *state; | |
| 2913 | |
| 2914 v->valid = 1; | |
| 1565 | 2915 v->no_cacheable = 0; |
| 573 | 2916 v->not_found = 0; |
| 2917 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2918 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) { |
| 573 | 2919 v->not_found = 1; |
| 2920 return NGX_OK; | |
| 2921 } | |
| 2922 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2923 len = r->upstream_states->nelts * (3 + 2); |
| 573 | 2924 |
| 2925 p = ngx_palloc(r->pool, len); | |
| 2926 if (p == NULL) { | |
| 2927 return NGX_ERROR; | |
| 2928 } | |
| 2929 | |
| 2930 v->data = p; | |
| 2931 | |
| 2932 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
|
2933 state = r->upstream_states->elts; |
| 573 | 2934 |
| 2935 for ( ;; ) { | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2936 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
|
2937 p = ngx_sprintf(p, "%ui", state[i].status); |
| 573 | 2938 |
| 2939 } else { | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2940 *p++ = '-'; |
| 573 | 2941 } |
| 2942 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2943 if (++i == r->upstream_states->nelts) { |
| 573 | 2944 break; |
| 2945 } | |
| 2946 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2947 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
|
2948 *p++ = ','; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2949 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2950 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2951 } else { |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2952 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2953 *p++ = ':'; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2954 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2955 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2956 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
|
2957 break; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2958 } |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2959 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2960 continue; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2961 } |
| 573 | 2962 } |
| 2963 | |
| 2964 v->len = p - v->data; | |
| 2965 | |
| 2966 return NGX_OK; | |
| 2967 } | |
| 2968 | |
| 2969 | |
| 2970 static ngx_int_t | |
| 2971 ngx_http_upstream_response_time_variable(ngx_http_request_t *r, | |
| 2972 ngx_http_variable_value_t *v, uintptr_t data) | |
| 2973 { | |
| 2974 u_char *p; | |
| 2975 size_t len; | |
| 2976 ngx_uint_t i; | |
|
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
2977 ngx_msec_int_t ms; |
| 573 | 2978 ngx_http_upstream_state_t *state; |
| 2979 | |
| 2980 v->valid = 1; | |
| 1565 | 2981 v->no_cacheable = 0; |
| 573 | 2982 v->not_found = 0; |
| 2983 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2984 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) { |
| 573 | 2985 v->not_found = 1; |
| 2986 return NGX_OK; | |
| 2987 } | |
| 2988 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
2989 len = r->upstream_states->nelts * (NGX_TIME_T_LEN + 4 + 2); |
| 573 | 2990 |
| 2991 p = ngx_palloc(r->pool, len); | |
| 2992 if (p == NULL) { | |
| 2993 return NGX_ERROR; | |
| 2994 } | |
| 2995 | |
| 2996 v->data = p; | |
| 2997 | |
| 2998 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
|
2999 state = r->upstream_states->elts; |
| 573 | 3000 |
| 3001 for ( ;; ) { | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3002 if (state[i].status) { |
| 1640 | 3003 ms = (ngx_msec_int_t) |
| 3004 (state[i].response_sec * 1000 + state[i].response_msec); | |
|
889
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
3005 ms = (ms >= 0) ? ms : 0; |
|
a9a7e4b1a72b
the previous fix does not actually fix overflow
Igor Sysoev <igor@sysoev.ru>
parents:
888
diff
changeset
|
3006 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
|
3007 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3008 } else { |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3009 *p++ = '-'; |
| 573 | 3010 } |
| 3011 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3012 if (++i == r->upstream_states->nelts) { |
| 573 | 3013 break; |
| 3014 } | |
| 3015 | |
|
1168
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3016 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
|
3017 *p++ = ','; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3018 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3019 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3020 } else { |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3021 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3022 *p++ = ':'; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3023 *p++ = ' '; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3024 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3025 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
|
3026 break; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3027 } |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3028 |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3029 continue; |
|
4d0d12446c3b
store the upstream states before X-Accel-Redirect to a next upstream
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
3030 } |
| 573 | 3031 } |
| 3032 | |
| 3033 v->len = p - v->data; | |
| 3034 | |
| 3035 return NGX_OK; | |
| 3036 } | |
| 3037 | |
| 3038 | |
| 1162 | 3039 ngx_int_t |
| 3040 ngx_http_upstream_header_variable(ngx_http_request_t *r, | |
| 3041 ngx_http_variable_value_t *v, uintptr_t data) | |
| 3042 { | |
| 3043 if (r->upstream == NULL) { | |
| 3044 v->not_found = 1; | |
| 3045 return NGX_OK; | |
| 3046 } | |
| 3047 | |
| 3048 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, | |
| 3049 &r->upstream->headers_in.headers.part, | |
| 3050 sizeof("upstream_http_") - 1); | |
| 3051 } | |
| 3052 | |
| 3053 | |
| 651 | 3054 static char * |
| 3055 ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy) | |
| 3056 { | |
| 884 | 3057 char *rv; |
| 3058 void *mconf; | |
| 3059 ngx_str_t *value; | |
| 3060 ngx_url_t u; | |
| 3061 ngx_uint_t m; | |
| 3062 ngx_conf_t pcf; | |
| 3063 ngx_http_module_t *module; | |
| 3064 ngx_http_conf_ctx_t *ctx, *http_ctx; | |
| 3065 ngx_http_upstream_srv_conf_t *uscf; | |
| 3066 | |
| 3067 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 3068 | |
| 3069 value = cf->args->elts; | |
| 3070 u.host = value[1]; | |
| 3071 u.no_resolve = 1; | |
| 3072 | |
| 3073 uscf = ngx_http_upstream_add(cf, &u, NGX_HTTP_UPSTREAM_CREATE | |
| 3074 |NGX_HTTP_UPSTREAM_WEIGHT | |
| 3075 |NGX_HTTP_UPSTREAM_MAX_FAILS | |
| 3076 |NGX_HTTP_UPSTREAM_FAIL_TIMEOUT | |
| 3077 |NGX_HTTP_UPSTREAM_DOWN | |
| 3078 |NGX_HTTP_UPSTREAM_BACKUP); | |
| 3079 if (uscf == NULL) { | |
| 3080 return NGX_CONF_ERROR; | |
| 3081 } | |
| 3082 | |
| 651 | 3083 |
| 3084 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); | |
| 3085 if (ctx == NULL) { | |
| 3086 return NGX_CONF_ERROR; | |
| 3087 } | |
| 3088 | |
| 884 | 3089 http_ctx = cf->ctx; |
| 3090 ctx->main_conf = http_ctx->main_conf; | |
| 651 | 3091 |
| 3092 /* the upstream{}'s srv_conf */ | |
| 3093 | |
| 3094 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 3095 if (ctx->srv_conf == NULL) { | |
| 3096 return NGX_CONF_ERROR; | |
| 3097 } | |
| 3098 | |
| 3099 ctx->srv_conf[ngx_http_upstream_module.ctx_index] = uscf; | |
| 3100 | |
| 884 | 3101 uscf->srv_conf = ctx->srv_conf; |
| 3102 | |
| 651 | 3103 |
| 3104 /* the upstream{}'s loc_conf */ | |
| 3105 | |
| 3106 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 3107 if (ctx->loc_conf == NULL) { | |
| 3108 return NGX_CONF_ERROR; | |
| 3109 } | |
| 3110 | |
| 3111 for (m = 0; ngx_modules[m]; m++) { | |
| 3112 if (ngx_modules[m]->type != NGX_HTTP_MODULE) { | |
| 3113 continue; | |
| 3114 } | |
| 3115 | |
| 3116 module = ngx_modules[m]->ctx; | |
| 3117 | |
| 884 | 3118 if (module->create_srv_conf) { |
| 3119 mconf = module->create_srv_conf(cf); | |
| 3120 if (mconf == NULL) { | |
| 3121 return NGX_CONF_ERROR; | |
| 3122 } | |
| 3123 | |
| 3124 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf; | |
| 3125 } | |
| 3126 | |
| 651 | 3127 if (module->create_loc_conf) { |
| 3128 mconf = module->create_loc_conf(cf); | |
| 3129 if (mconf == NULL) { | |
| 3130 return NGX_CONF_ERROR; | |
| 3131 } | |
| 3132 | |
| 3133 ctx->loc_conf[ngx_modules[m]->ctx_index] = mconf; | |
| 3134 } | |
| 3135 } | |
| 3136 | |
| 3137 | |
| 3138 /* parse inside upstream{} */ | |
| 3139 | |
| 3140 pcf = *cf; | |
| 3141 cf->ctx = ctx; | |
| 3142 cf->cmd_type = NGX_HTTP_UPS_CONF; | |
| 3143 | |
| 3144 rv = ngx_conf_parse(cf, NULL); | |
| 3145 | |
| 3146 *cf = pcf; | |
| 3147 | |
| 3148 if (rv != NGX_CONF_OK) { | |
| 3149 return rv; | |
| 3150 } | |
| 3151 | |
| 3152 if (uscf->servers == NULL) { | |
| 3153 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 3154 "no servers are inside upstream"); | |
| 3155 return NGX_CONF_ERROR; | |
| 3156 } | |
| 3157 | |
| 3158 return rv; | |
| 3159 } | |
| 3160 | |
| 3161 | |
| 3162 static char * | |
| 3163 ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 3164 { | |
| 3165 ngx_http_upstream_srv_conf_t *uscf = conf; | |
| 3166 | |
| 884 | 3167 time_t fail_timeout; |
| 3168 ngx_str_t *value, s; | |
| 3169 ngx_url_t u; | |
| 3170 ngx_int_t weight, max_fails; | |
| 3171 ngx_uint_t i; | |
| 3172 ngx_http_upstream_server_t *us; | |
| 651 | 3173 |
| 3174 if (uscf->servers == NULL) { | |
| 884 | 3175 uscf->servers = ngx_array_create(cf->pool, 4, |
| 3176 sizeof(ngx_http_upstream_server_t)); | |
| 651 | 3177 if (uscf->servers == NULL) { |
| 3178 return NGX_CONF_ERROR; | |
| 3179 } | |
| 3180 } | |
| 3181 | |
| 884 | 3182 us = ngx_array_push(uscf->servers); |
| 3183 if (us == NULL) { | |
| 651 | 3184 return NGX_CONF_ERROR; |
| 3185 } | |
| 3186 | |
| 884 | 3187 ngx_memzero(us, sizeof(ngx_http_upstream_server_t)); |
| 3188 | |
| 651 | 3189 value = cf->args->elts; |
| 3190 | |
| 3191 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 3192 | |
| 3193 u.url = value[1]; | |
| 906 | 3194 u.default_port = 80; |
| 651 | 3195 |
|
1559
fe11e2a3946d
use pool instead of ngx_conf_t
Igor Sysoev <igor@sysoev.ru>
parents:
1558
diff
changeset
|
3196 if (ngx_parse_url(cf->pool, &u) != NGX_OK) { |
| 651 | 3197 if (u.err) { |
| 3198 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 3199 "%s in upstream \"%V\"", u.err, &u.url); | |
| 3200 } | |
| 3201 | |
| 3202 return NGX_CONF_ERROR; | |
| 3203 } | |
| 3204 | |
| 663 | 3205 weight = 1; |
| 884 | 3206 max_fails = 1; |
| 3207 fail_timeout = 10; | |
| 3208 | |
| 3209 for (i = 2; i < cf->args->nelts; i++) { | |
| 3210 | |
| 3211 if (ngx_strncmp(value[i].data, "weight=", 7) == 0) { | |
| 3212 | |
| 3213 if (!(uscf->flags & NGX_HTTP_UPSTREAM_WEIGHT)) { | |
| 3214 goto invalid; | |
| 3215 } | |
| 3216 | |
| 3217 weight = ngx_atoi(&value[i].data[7], value[i].len - 7); | |
| 663 | 3218 |
| 3219 if (weight == NGX_ERROR || weight == 0) { | |
| 3220 goto invalid; | |
| 3221 } | |
| 3222 | |
| 884 | 3223 continue; |
| 3224 } | |
| 3225 | |
| 3226 if (ngx_strncmp(value[i].data, "max_fails=", 10) == 0) { | |
| 3227 | |
| 3228 if (!(uscf->flags & NGX_HTTP_UPSTREAM_MAX_FAILS)) { | |
| 3229 goto invalid; | |
| 3230 } | |
| 3231 | |
| 3232 max_fails = ngx_atoi(&value[i].data[10], value[i].len - 10); | |
| 3233 | |
| 3234 if (max_fails == NGX_ERROR) { | |
| 3235 goto invalid; | |
| 3236 } | |
| 3237 | |
| 3238 continue; | |
| 663 | 3239 } |
| 884 | 3240 |
| 3241 if (ngx_strncmp(value[i].data, "fail_timeout=", 13) == 0) { | |
| 3242 | |
| 3243 if (!(uscf->flags & NGX_HTTP_UPSTREAM_FAIL_TIMEOUT)) { | |
| 3244 goto invalid; | |
| 3245 } | |
| 3246 | |
| 3247 s.len = value[i].len - 13; | |
| 3248 s.data = &value[i].data[13]; | |
| 3249 | |
| 3250 fail_timeout = ngx_parse_time(&s, 1); | |
| 3251 | |
| 3252 if (fail_timeout < 0) { | |
| 3253 goto invalid; | |
| 3254 } | |
| 3255 | |
| 3256 continue; | |
| 3257 } | |
| 3258 | |
| 1378 | 3259 if (ngx_strncmp(value[i].data, "backup", 6) == 0) { |
| 3260 | |
| 3261 if (!(uscf->flags & NGX_HTTP_UPSTREAM_BACKUP)) { | |
| 3262 goto invalid; | |
| 3263 } | |
| 3264 | |
| 3265 us->backup = 1; | |
| 3266 | |
| 3267 continue; | |
| 3268 } | |
| 3269 | |
| 884 | 3270 if (ngx_strncmp(value[i].data, "down", 4) == 0) { |
| 3271 | |
| 3272 if (!(uscf->flags & NGX_HTTP_UPSTREAM_DOWN)) { | |
| 3273 goto invalid; | |
| 3274 } | |
| 3275 | |
| 3276 us->down = 1; | |
| 3277 | |
| 3278 continue; | |
| 3279 } | |
| 3280 | |
| 3281 goto invalid; | |
| 663 | 3282 } |
| 3283 | |
| 884 | 3284 us->addrs = u.addrs; |
| 3285 us->naddrs = u.naddrs; | |
| 3286 us->weight = weight; | |
| 3287 us->max_fails = max_fails; | |
| 3288 us->fail_timeout = fail_timeout; | |
| 651 | 3289 |
| 3290 return NGX_CONF_OK; | |
| 663 | 3291 |
| 3292 invalid: | |
| 3293 | |
| 884 | 3294 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 3295 "invalid parameter \"%V\"", &value[i]); | |
| 663 | 3296 |
| 3297 return NGX_CONF_ERROR; | |
| 651 | 3298 } |
| 3299 | |
| 3300 | |
| 3301 ngx_http_upstream_srv_conf_t * | |
| 884 | 3302 ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags) |
| 651 | 3303 { |
| 3304 ngx_uint_t i; | |
| 884 | 3305 ngx_http_upstream_server_t *us; |
| 651 | 3306 ngx_http_upstream_srv_conf_t *uscf, **uscfp; |
| 3307 ngx_http_upstream_main_conf_t *umcf; | |
| 3308 | |
| 884 | 3309 if (!(flags & NGX_HTTP_UPSTREAM_CREATE)) { |
| 3310 | |
|
1559
fe11e2a3946d
use pool instead of ngx_conf_t
Igor Sysoev <igor@sysoev.ru>
parents:
1558
diff
changeset
|
3311 if (ngx_parse_url(cf->pool, u) != NGX_OK) { |
| 651 | 3312 if (u->err) { |
| 3313 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 3314 "%s in upstream \"%V\"", u->err, &u->url); | |
| 3315 } | |
| 3316 | |
| 3317 return NULL; | |
| 3318 } | |
| 3319 } | |
| 3320 | |
| 3321 umcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_upstream_module); | |
| 3322 | |
| 3323 uscfp = umcf->upstreams.elts; | |
| 3324 | |
| 3325 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
| 906 | 3326 |
| 3327 if (uscfp[i]->host.len != u->host.len | |
| 884 | 3328 || ngx_strncasecmp(uscfp[i]->host.data, u->host.data, u->host.len) |
| 3329 != 0) | |
| 3330 { | |
| 651 | 3331 continue; |
| 3332 } | |
| 3333 | |
| 884 | 3334 if ((flags & NGX_HTTP_UPSTREAM_CREATE) |
| 3335 && (uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE)) | |
| 651 | 3336 { |
| 884 | 3337 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 3338 "duplicate upstream \"%V\"", &u->host); | |
| 3339 return NULL; | |
| 651 | 3340 } |
| 884 | 3341 |
| 906 | 3342 if ((uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE) && u->port) { |
| 884 | 3343 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
| 906 | 3344 "upstream \"%V\" may not have port %d", |
| 3345 &u->host, u->port); | |
| 3346 return NULL; | |
| 3347 } | |
| 3348 | |
| 3349 if ((flags & NGX_HTTP_UPSTREAM_CREATE) && uscfp[i]->port) { | |
| 3350 ngx_log_error(NGX_LOG_WARN, cf->log, 0, | |
| 3351 "upstream \"%V\" may not have port %d in %s:%ui", | |
| 3352 &u->host, uscfp[i]->port, | |
|
1489
56f1ea5baabb
u_char* is enough to keep file name
Igor Sysoev <igor@sysoev.ru>
parents:
1469
diff
changeset
|
3353 uscfp[i]->file_name, uscfp[i]->line); |
| 906 | 3354 return NULL; |
| 3355 } | |
| 3356 | |
| 3357 if (uscfp[i]->port != u->port) { | |
| 3358 continue; | |
| 884 | 3359 } |
| 3360 | |
| 1340 | 3361 if (uscfp[i]->default_port && u->default_port |
| 3362 && uscfp[i]->default_port != u->default_port) | |
| 3363 { | |
| 3364 continue; | |
| 3365 } | |
| 3366 | |
| 884 | 3367 return uscfp[i]; |
| 651 | 3368 } |
| 3369 | |
| 3370 uscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_srv_conf_t)); | |
| 3371 if (uscf == NULL) { | |
| 3372 return NULL; | |
| 3373 } | |
| 3374 | |
| 884 | 3375 uscf->flags = flags; |
| 651 | 3376 uscf->host = u->host; |
|
1489
56f1ea5baabb
u_char* is enough to keep file name
Igor Sysoev <igor@sysoev.ru>
parents:
1469
diff
changeset
|
3377 uscf->file_name = cf->conf_file->file.name.data; |
| 651 | 3378 uscf->line = cf->conf_file->line; |
| 906 | 3379 uscf->port = u->port; |
| 3380 uscf->default_port = u->default_port; | |
| 884 | 3381 |
| 3382 if (u->naddrs == 1) { | |
| 3383 uscf->servers = ngx_array_create(cf->pool, 1, | |
| 3384 sizeof(ngx_http_upstream_server_t)); | |
| 3385 if (uscf->servers == NULL) { | |
| 3386 return NGX_CONF_ERROR; | |
| 3387 } | |
| 3388 | |
| 3389 us = ngx_array_push(uscf->servers); | |
| 3390 if (us == NULL) { | |
| 3391 return NGX_CONF_ERROR; | |
| 3392 } | |
| 3393 | |
| 3394 ngx_memzero(us, sizeof(ngx_http_upstream_server_t)); | |
| 3395 | |
| 3396 us->addrs = u->addrs; | |
| 3397 us->naddrs = u->naddrs; | |
| 3398 } | |
| 651 | 3399 |
| 3400 uscfp = ngx_array_push(&umcf->upstreams); | |
| 3401 if (uscfp == NULL) { | |
| 3402 return NULL; | |
| 3403 } | |
| 3404 | |
| 3405 *uscfp = uscf; | |
| 3406 | |
| 3407 return uscf; | |
| 3408 } | |
| 3409 | |
| 3410 | |
| 509 | 3411 static void * |
| 3412 ngx_http_upstream_create_main_conf(ngx_conf_t *cf) | |
| 3413 { | |
| 3414 ngx_http_upstream_main_conf_t *umcf; | |
| 3415 | |
| 3416 umcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_main_conf_t)); | |
| 3417 if (umcf == NULL) { | |
| 3418 return NULL; | |
| 3419 } | |
| 3420 | |
| 651 | 3421 if (ngx_array_init(&umcf->upstreams, cf->pool, 4, |
| 3422 sizeof(ngx_http_upstream_srv_conf_t *)) | |
| 3423 != NGX_OK) | |
| 3424 { | |
| 3425 return NGX_CONF_ERROR; | |
| 3426 } | |
| 3427 | |
| 509 | 3428 return umcf; |
| 3429 } | |
| 3430 | |
| 3431 | |
| 3432 static char * | |
| 651 | 3433 ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf) |
| 509 | 3434 { |
| 3435 ngx_http_upstream_main_conf_t *umcf = conf; | |
| 3436 | |
| 651 | 3437 ngx_uint_t i; |
| 3438 ngx_array_t headers_in; | |
| 3439 ngx_hash_key_t *hk; | |
| 3440 ngx_hash_init_t hash; | |
| 884 | 3441 ngx_http_upstream_init_pt init; |
| 651 | 3442 ngx_http_upstream_header_t *header; |
| 3443 ngx_http_upstream_srv_conf_t **uscfp; | |
| 3444 | |
| 3445 uscfp = umcf->upstreams.elts; | |
| 3446 | |
| 3447 for (i = 0; i < umcf->upstreams.nelts; i++) { | |
| 884 | 3448 |
| 3449 init = uscfp[i]->peer.init_upstream ? uscfp[i]->peer.init_upstream: | |
| 3450 ngx_http_upstream_init_round_robin; | |
| 3451 | |
| 3452 if (init(cf, uscfp[i]) != NGX_OK) { | |
| 651 | 3453 return NGX_CONF_ERROR; |
| 3454 } | |
| 3455 } | |
| 649 | 3456 |
| 663 | 3457 |
| 884 | 3458 /* upstream_headers_in_hash */ |
| 3459 | |
| 649 | 3460 if (ngx_array_init(&headers_in, cf->temp_pool, 32, sizeof(ngx_hash_key_t)) |
| 3461 != NGX_OK) | |
| 509 | 3462 { |
| 3463 return NGX_CONF_ERROR; | |
| 3464 } | |
| 3465 | |
| 649 | 3466 for (header = ngx_http_upstream_headers_in; header->name.len; header++) { |
| 3467 hk = ngx_array_push(&headers_in); | |
| 3468 if (hk == NULL) { | |
| 3469 return NGX_CONF_ERROR; | |
| 3470 } | |
| 3471 | |
| 3472 hk->key = header->name; | |
| 3473 hk->key_hash = ngx_hash_key_lc(header->name.data, header->name.len); | |
| 3474 hk->value = header; | |
| 3475 } | |
| 3476 | |
| 3477 hash.hash = &umcf->headers_in_hash; | |
| 3478 hash.key = ngx_hash_key_lc; | |
| 3479 hash.max_size = 512; | |
|
751
bae59a740c40
align hash bucket size to cache line
Igor Sysoev <igor@sysoev.ru>
parents:
750
diff
changeset
|
3480 hash.bucket_size = ngx_align(64, ngx_cacheline_size); |
| 649 | 3481 hash.name = "upstream_headers_in_hash"; |
| 3482 hash.pool = cf->pool; | |
| 3483 hash.temp_pool = NULL; | |
| 3484 | |
| 3485 if (ngx_hash_init(&hash, headers_in.elts, headers_in.nelts) != NGX_OK) { | |
| 3486 return NGX_CONF_ERROR; | |
| 3487 } | |
| 509 | 3488 |
| 3489 return NGX_CONF_OK; | |
| 3490 } |