Mercurial > hg > nginx
annotate src/http/modules/ngx_http_memcached_module.c @ 884:4d68c486fcb0
upstream choice modules
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Mon, 04 Dec 2006 16:46:13 +0000 |
parents | b630109560b7 |
children | f247db60fc85 |
rev | line source |
---|---|
581 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
9 #include <ngx_event.h> | |
10 #include <ngx_http.h> | |
11 | |
12 | |
13 typedef struct { | |
14 ngx_http_upstream_conf_t upstream; | |
15 } ngx_http_memcached_loc_conf_t; | |
16 | |
17 | |
18 typedef struct { | |
19 size_t rest; | |
20 ngx_http_request_t *request; | |
597 | 21 ngx_str_t key; |
581 | 22 } ngx_http_memcached_ctx_t; |
23 | |
24 | |
25 static ngx_int_t ngx_http_memcached_create_request(ngx_http_request_t *r); | |
26 static ngx_int_t ngx_http_memcached_reinit_request(ngx_http_request_t *r); | |
27 static ngx_int_t ngx_http_memcached_process_header(ngx_http_request_t *r); | |
28 static ngx_int_t ngx_http_memcached_filter_init(void *data); | |
29 static ngx_int_t ngx_http_memcached_filter(void *data, ssize_t bytes); | |
30 static void ngx_http_memcached_abort_request(ngx_http_request_t *r); | |
31 static void ngx_http_memcached_finalize_request(ngx_http_request_t *r, | |
32 ngx_int_t rc); | |
33 | |
34 static void *ngx_http_memcached_create_loc_conf(ngx_conf_t *cf); | |
35 static char *ngx_http_memcached_merge_loc_conf(ngx_conf_t *cf, | |
36 void *parent, void *child); | |
37 | |
38 static char *ngx_http_memcached_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
39 void *conf); | |
40 | |
884 | 41 static char *ngx_http_memcached_upstream_max_fails_unsupported(ngx_conf_t *cf, |
42 ngx_command_t *cmd, void *conf); | |
43 static char *ngx_http_memcached_upstream_fail_timeout_unsupported(ngx_conf_t *cf, | |
44 ngx_command_t *cmd, void *conf); | |
45 | |
581 | 46 |
47 static ngx_conf_bitmask_t ngx_http_memcached_next_upstream_masks[] = { | |
48 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
49 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
50 { ngx_string("invalid_response"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
51 { ngx_string("not_found"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, | |
665 | 52 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, |
581 | 53 { ngx_null_string, 0 } |
54 }; | |
55 | |
56 | |
57 static ngx_command_t ngx_http_memcached_commands[] = { | |
58 | |
59 { ngx_string("memcached_pass"), | |
60 NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
61 ngx_http_memcached_pass, | |
62 NGX_HTTP_LOC_CONF_OFFSET, | |
63 0, | |
64 NULL }, | |
65 | |
66 { ngx_string("memcached_connect_timeout"), | |
67 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
68 ngx_conf_set_msec_slot, | |
69 NGX_HTTP_LOC_CONF_OFFSET, | |
70 offsetof(ngx_http_memcached_loc_conf_t, upstream.connect_timeout), | |
71 NULL }, | |
72 | |
73 { ngx_string("memcached_send_timeout"), | |
74 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
75 ngx_conf_set_msec_slot, | |
76 NGX_HTTP_LOC_CONF_OFFSET, | |
77 offsetof(ngx_http_memcached_loc_conf_t, upstream.send_timeout), | |
78 NULL }, | |
79 | |
80 { ngx_string("memcached_buffer_size"), | |
81 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
82 ngx_conf_set_size_slot, | |
83 NGX_HTTP_LOC_CONF_OFFSET, | |
84 offsetof(ngx_http_memcached_loc_conf_t, upstream.buffer_size), | |
85 NULL }, | |
86 | |
87 { ngx_string("memcached_read_timeout"), | |
88 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
89 ngx_conf_set_msec_slot, | |
90 NGX_HTTP_LOC_CONF_OFFSET, | |
91 offsetof(ngx_http_memcached_loc_conf_t, upstream.read_timeout), | |
92 NULL }, | |
93 | |
94 { ngx_string("memcached_next_upstream"), | |
95 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
96 ngx_conf_set_bitmask_slot, | |
97 NGX_HTTP_LOC_CONF_OFFSET, | |
98 offsetof(ngx_http_memcached_loc_conf_t, upstream.next_upstream), | |
99 &ngx_http_memcached_next_upstream_masks }, | |
100 | |
101 { ngx_string("memcached_upstream_max_fails"), | |
102 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
884 | 103 ngx_http_memcached_upstream_max_fails_unsupported, |
104 0, | |
105 0, | |
581 | 106 NULL }, |
107 | |
108 { ngx_string("memcached_upstream_fail_timeout"), | |
109 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
884 | 110 ngx_http_memcached_upstream_fail_timeout_unsupported, |
111 0, | |
112 0, | |
581 | 113 NULL }, |
114 | |
115 ngx_null_command | |
116 }; | |
117 | |
118 | |
667 | 119 static ngx_http_module_t ngx_http_memcached_module_ctx = { |
581 | 120 NULL, /* preconfiguration */ |
121 NULL, /* postconfiguration */ | |
122 | |
123 NULL, /* create main configuration */ | |
124 NULL, /* init main configuration */ | |
125 | |
126 NULL, /* create server configuration */ | |
127 NULL, /* merge server configuration */ | |
128 | |
129 ngx_http_memcached_create_loc_conf, /* create location configration */ | |
130 ngx_http_memcached_merge_loc_conf /* merge location configration */ | |
131 }; | |
132 | |
133 | |
134 ngx_module_t ngx_http_memcached_module = { | |
135 NGX_MODULE_V1, | |
136 &ngx_http_memcached_module_ctx, /* module context */ | |
137 ngx_http_memcached_commands, /* module directives */ | |
138 NGX_HTTP_MODULE, /* module type */ | |
139 NULL, /* init master */ | |
140 NULL, /* init module */ | |
141 NULL, /* init process */ | |
142 NULL, /* init thread */ | |
143 NULL, /* exit thread */ | |
144 NULL, /* exit process */ | |
145 NULL, /* exit master */ | |
146 NGX_MODULE_V1_PADDING | |
147 }; | |
148 | |
149 | |
150 #define NGX_HTTP_MEMCACHED_END (sizeof(ngx_http_memcached_end) - 1) | |
151 static u_char ngx_http_memcached_end[] = CRLF "END" CRLF; | |
152 | |
153 | |
154 static ngx_int_t | |
155 ngx_http_memcached_handler(ngx_http_request_t *r) | |
156 { | |
157 ngx_int_t rc; | |
158 ngx_http_upstream_t *u; | |
159 ngx_http_memcached_ctx_t *ctx; | |
160 ngx_http_memcached_loc_conf_t *mlcf; | |
161 | |
645 | 162 if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) { |
581 | 163 return NGX_HTTP_NOT_ALLOWED; |
164 } | |
165 | |
166 rc = ngx_http_discard_body(r); | |
167 | |
168 if (rc != NGX_OK && rc != NGX_AGAIN) { | |
169 return rc; | |
170 } | |
171 | |
172 if (ngx_http_set_content_type(r) != NGX_OK) { | |
173 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
174 } | |
175 | |
176 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_memcached_module); | |
177 | |
178 u = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_t)); | |
179 if (u == NULL) { | |
180 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
181 } | |
182 | |
183 u->peer.log = r->connection->log; | |
184 u->peer.log_error = NGX_ERROR_ERR; | |
185 #if (NGX_THREADS) | |
186 u->peer.lock = &r->connection->lock; | |
187 #endif | |
188 | |
189 u->output.tag = (ngx_buf_tag_t) &ngx_http_memcached_module; | |
190 | |
191 u->conf = &mlcf->upstream; | |
192 | |
193 u->create_request = ngx_http_memcached_create_request; | |
194 u->reinit_request = ngx_http_memcached_reinit_request; | |
195 u->process_header = ngx_http_memcached_process_header; | |
196 u->abort_request = ngx_http_memcached_abort_request; | |
197 u->finalize_request = ngx_http_memcached_finalize_request; | |
198 | |
199 r->upstream = u; | |
200 | |
201 ctx = ngx_palloc(r->pool, sizeof(ngx_http_memcached_ctx_t)); | |
202 if (ctx == NULL) { | |
203 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
204 } | |
205 | |
206 ctx->rest = NGX_HTTP_MEMCACHED_END; | |
207 ctx->request = r; | |
208 | |
597 | 209 ngx_http_set_ctx(r, ctx, ngx_http_memcached_module); |
210 | |
581 | 211 u->input_filter_init = ngx_http_memcached_filter_init; |
212 u->input_filter = ngx_http_memcached_filter; | |
213 u->input_filter_ctx = ctx; | |
214 | |
215 ngx_http_upstream_init(r); | |
216 | |
217 return NGX_DONE; | |
218 } | |
219 | |
220 | |
221 static ngx_int_t | |
222 ngx_http_memcached_create_request(ngx_http_request_t *r) | |
223 { | |
597 | 224 size_t len; |
225 ngx_buf_t *b; | |
226 ngx_chain_t *cl; | |
227 ngx_http_memcached_ctx_t *ctx; | |
581 | 228 |
229 len = sizeof("get ") - 1 + r->uri.len + sizeof(" " CRLF) - 1; | |
230 if (r->args.len) { | |
597 | 231 len += 1 + r->args.len; |
581 | 232 } |
233 | |
234 b = ngx_create_temp_buf(r->pool, len); | |
235 if (b == NULL) { | |
236 return NGX_ERROR; | |
237 } | |
238 | |
239 cl = ngx_alloc_chain_link(r->pool); | |
240 if (cl == NULL) { | |
241 return NGX_ERROR; | |
242 } | |
243 | |
244 cl->buf = b; | |
245 cl->next = NULL; | |
246 | |
247 r->upstream->request_bufs = cl; | |
248 | |
249 *b->last++ = 'g'; *b->last++ = 'e'; *b->last++ = 't'; *b->last++ = ' '; | |
250 | |
597 | 251 ctx = ngx_http_get_module_ctx(r, ngx_http_memcached_module); |
252 | |
253 ctx->key.data = b->last; | |
254 | |
581 | 255 b->last = ngx_copy(b->last, r->uri.data, r->uri.len); |
256 | |
257 if (r->args.len) { | |
258 *b->last++ = '?'; | |
259 b->last = ngx_copy(b->last, r->args.data, r->args.len); | |
260 } | |
261 | |
597 | 262 ctx->key.len = b->last - ctx->key.data; |
581 | 263 |
264 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
597 | 265 "http memcached request: \"%V\"", &ctx->key); |
581 | 266 |
267 *b->last++ = ' '; *b->last++ = CR; *b->last++ = LF; | |
268 | |
269 return NGX_OK; | |
270 } | |
271 | |
272 | |
273 static ngx_int_t | |
274 ngx_http_memcached_reinit_request(ngx_http_request_t *r) | |
275 { | |
276 return NGX_OK; | |
277 } | |
278 | |
279 | |
280 static ngx_int_t | |
281 ngx_http_memcached_process_header(ngx_http_request_t *r) | |
282 { | |
597 | 283 u_char *p, *len; |
284 ngx_str_t line; | |
285 ngx_http_upstream_t *u; | |
286 ngx_http_memcached_ctx_t *ctx; | |
581 | 287 |
288 u = r->upstream; | |
289 | |
290 for (p = u->buffer.pos; p < u->buffer.last; p++) { | |
291 if (*p == LF) { | |
292 goto found; | |
293 } | |
294 } | |
295 | |
296 return NGX_AGAIN; | |
297 | |
298 found: | |
299 | |
300 *p = '\0'; | |
301 | |
302 line.len = p - u->buffer.pos - 1; | |
303 line.data = u->buffer.pos; | |
304 | |
305 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
306 "memcached: \"%V\"", &line); | |
307 | |
308 p = u->buffer.pos; | |
309 | |
597 | 310 ctx = ngx_http_get_module_ctx(r, ngx_http_memcached_module); |
311 | |
581 | 312 if (ngx_strncmp(p, "VALUE ", sizeof("VALUE ") - 1) == 0) { |
313 | |
314 p += sizeof("VALUE ") - 1; | |
315 | |
597 | 316 if (ngx_strncmp(p, ctx->key.data, ctx->key.len) != 0) { |
581 | 317 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
318 "memcached sent invalid key in response \"%V\" " | |
319 "for key \"%V\"", | |
597 | 320 &line, &ctx->key); |
581 | 321 |
322 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
323 } | |
324 | |
597 | 325 p += ctx->key.len; |
581 | 326 |
327 if (*p++ != ' ') { | |
328 goto no_valid; | |
329 } | |
330 | |
331 /* skip flags */ | |
332 | |
333 while (*p) { | |
334 if (*p++ == ' ') { | |
335 goto length; | |
336 } | |
337 } | |
338 | |
339 goto no_valid; | |
340 | |
341 length: | |
342 | |
343 len = p; | |
344 | |
345 while (*p && *p++ != CR) { /* void */ } | |
346 | |
347 r->headers_out.content_length_n = ngx_atoof(len, p - len - 1); | |
348 if (r->headers_out.content_length_n == -1) { | |
349 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
350 "memcached sent invalid length in response \"%V\" " | |
351 "for key \"%V\"", | |
597 | 352 &line, &ctx->key); |
581 | 353 return NGX_HTTP_UPSTREAM_INVALID_HEADER; |
354 } | |
355 | |
356 u->headers_in.status_n = 200; | |
357 u->buffer.pos = p + 1; | |
358 | |
359 return NGX_OK; | |
360 } | |
361 | |
362 if (ngx_strcmp(p, "END\x0d") == 0) { | |
363 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0, | |
597 | 364 "key: \"%V\" was not found by memcached", &ctx->key); |
581 | 365 |
366 u->headers_in.status_n = 404; | |
367 | |
368 return NGX_OK; | |
369 } | |
370 | |
371 no_valid: | |
372 | |
373 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
374 "memcached sent invalid response: \"%V\"", &line); | |
375 | |
376 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
377 } | |
378 | |
379 | |
380 static ngx_int_t | |
381 ngx_http_memcached_filter_init(void *data) | |
382 { | |
383 ngx_http_memcached_ctx_t *ctx = data; | |
384 | |
385 ngx_http_upstream_t *u; | |
386 | |
387 u = ctx->request->upstream; | |
388 | |
389 u->length += NGX_HTTP_MEMCACHED_END; | |
390 | |
391 return NGX_OK; | |
392 } | |
393 | |
394 | |
395 static ngx_int_t | |
396 ngx_http_memcached_filter(void *data, ssize_t bytes) | |
397 { | |
398 ngx_http_memcached_ctx_t *ctx = data; | |
399 | |
400 u_char *last; | |
401 ngx_buf_t *b; | |
402 ngx_chain_t *cl, **ll; | |
403 ngx_http_upstream_t *u; | |
404 | |
405 u = ctx->request->upstream; | |
406 b = &u->buffer; | |
407 | |
408 if (u->length == ctx->rest) { | |
409 | |
410 if (ngx_strncmp(b->last, | |
411 ngx_http_memcached_end + NGX_HTTP_MEMCACHED_END | |
412 - ctx->rest, | |
413 bytes) != 0) | |
414 { | |
415 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
416 "memcached sent invalid trailer"); | |
417 } | |
418 | |
419 u->length -= bytes; | |
420 ctx->rest -= bytes; | |
421 | |
422 return NGX_OK; | |
423 } | |
424 | |
425 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
426 ll = &cl->next; | |
427 } | |
428 | |
429 cl = ngx_chain_get_free_buf(ctx->request->pool, &u->free_bufs); | |
430 if (cl == NULL) { | |
431 return NGX_ERROR; | |
432 } | |
433 | |
434 cl->buf->flush = 1; | |
435 cl->buf->memory = 1; | |
436 | |
437 *ll = cl; | |
438 | |
439 cl->buf->pos = b->last; | |
440 b->last += bytes; | |
441 cl->buf->last = b->last; | |
442 | |
443 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0, | |
444 "memcached filter bytes:%z size:%z length:%z rest:%z", | |
445 bytes, b->last - b->pos, u->length, ctx->rest); | |
446 | |
447 if (b->last - b->pos <= (ssize_t) (u->length - NGX_HTTP_MEMCACHED_END)) { | |
448 u->length -= bytes; | |
449 return NGX_OK; | |
450 } | |
451 | |
452 | |
453 last = b->pos + u->length - NGX_HTTP_MEMCACHED_END; | |
454 | |
455 if (ngx_strncmp(last, ngx_http_memcached_end, b->last - last) != 0) { | |
456 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
457 "memcached sent invalid trailer"); | |
458 } | |
459 | |
460 ctx->rest = u->length - (b->last - b->pos); | |
461 b->last = last; | |
462 cl->buf->last = last; | |
463 u->length = ctx->rest; | |
464 | |
465 return NGX_OK; | |
466 } | |
467 | |
468 | |
469 static void | |
470 ngx_http_memcached_abort_request(ngx_http_request_t *r) | |
471 { | |
472 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
473 "abort http memcached request"); | |
474 return; | |
475 } | |
476 | |
477 | |
478 static void | |
479 ngx_http_memcached_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
480 { | |
481 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
482 "finalize http memcached request"); | |
483 return; | |
484 } | |
485 | |
486 | |
487 static void * | |
488 ngx_http_memcached_create_loc_conf(ngx_conf_t *cf) | |
489 { | |
490 ngx_http_memcached_loc_conf_t *conf; | |
491 | |
492 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_memcached_loc_conf_t)); | |
493 if (conf == NULL) { | |
494 return NGX_CONF_ERROR; | |
495 } | |
496 | |
497 /* | |
498 * set by ngx_pcalloc(): | |
499 * | |
500 * conf->upstream.bufs.num = 0; | |
501 * conf->upstream.next_upstream = 0; | |
502 * conf->upstream.temp_path = NULL; | |
503 * conf->upstream.schema = { 0, NULL }; | |
504 * conf->upstream.uri = { 0, NULL }; | |
505 * conf->upstream.location = NULL; | |
506 * | |
507 * conf->peers = NULL; | |
508 */ | |
509 | |
510 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; | |
511 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
512 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
513 | |
514 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
515 | |
884 | 516 /* the hardcoded values */ |
581 | 517 conf->upstream.cyclic_temp_file = 0; |
629 | 518 conf->upstream.buffering = 0; |
519 conf->upstream.ignore_client_abort = 0; | |
581 | 520 conf->upstream.send_lowat = 0; |
521 conf->upstream.bufs.num = 0; | |
522 conf->upstream.busy_buffers_size = 0; | |
523 conf->upstream.max_temp_file_size = 0; | |
524 conf->upstream.temp_file_write_size = 0; | |
657 | 525 conf->upstream.intercept_errors = 1; |
675 | 526 conf->upstream.intercept_404 = 1; |
581 | 527 conf->upstream.pass_request_headers = 0; |
528 conf->upstream.pass_request_body = 0; | |
529 | |
530 return conf; | |
531 } | |
532 | |
533 | |
534 static char * | |
535 ngx_http_memcached_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
536 { | |
537 ngx_http_memcached_loc_conf_t *prev = parent; | |
538 ngx_http_memcached_loc_conf_t *conf = child; | |
539 | |
540 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, | |
541 prev->upstream.connect_timeout, 60000); | |
542 | |
543 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
544 prev->upstream.send_timeout, 60000); | |
545 | |
546 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
547 prev->upstream.read_timeout, 60000); | |
548 | |
549 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
550 prev->upstream.buffer_size, | |
551 (size_t) ngx_pagesize); | |
552 | |
553 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
554 prev->upstream.next_upstream, | |
555 (NGX_CONF_BITMASK_SET | |
556 |NGX_HTTP_UPSTREAM_FT_ERROR | |
557 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
558 | |
665 | 559 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { |
560 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
561 |NGX_HTTP_UPSTREAM_FT_OFF; | |
562 } | |
563 | |
581 | 564 return NGX_CONF_OK; |
565 } | |
566 | |
567 | |
568 static char * | |
569 ngx_http_memcached_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
570 { | |
571 ngx_http_memcached_loc_conf_t *lcf = conf; | |
572 | |
573 ngx_str_t *value; | |
807
3095bf59059b
now the "memcached_pass" directive uses ngx_parse_url()
Igor Sysoev <igor@sysoev.ru>
parents:
675
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574 ngx_url_t u; |
581 | 575 ngx_http_core_loc_conf_t *clcf; |
576 | |
577 if (lcf->upstream.schema.len) { | |
578 return "is duplicate"; | |
579 } | |
580 | |
581 value = cf->args->elts; | |
582 | |
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583 ngx_memzero(&u, sizeof(ngx_url_t)); |
581 | 584 |
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585 u.url = value[1]; |
884 | 586 u.no_resolve = 1; |
587 /* u.uri_part = 1; may be used as namespace */ | |
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588 |
884 | 589 lcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); |
590 if (lcf->upstream.upstream == NULL) { | |
591 return NGX_CONF_ERROR; | |
581 | 592 } |
593 | |
594 lcf->upstream.schema.len = sizeof("memcached://") - 1; | |
595 lcf->upstream.schema.data = (u_char *) "memcached://"; | |
596 | |
597 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
598 | |
599 clcf->handler = ngx_http_memcached_handler; | |
600 | |
601 lcf->upstream.location = clcf->name; | |
602 | |
603 if (clcf->name.data[clcf->name.len - 1] == '/') { | |
604 clcf->auto_redirect = 1; | |
605 } | |
606 | |
607 return NGX_CONF_OK; | |
608 } | |
884 | 609 |
610 | |
611 static char * | |
612 ngx_http_memcached_upstream_max_fails_unsupported(ngx_conf_t *cf, | |
613 ngx_command_t *cmd, void *conf) | |
614 { | |
615 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
616 "\"memcached_upstream_max_fails\" is not supported, " | |
617 "use the \"max_fails\" parameter of the \"server\" directive ", | |
618 "inside the \"upstream\" block"); | |
619 | |
620 return NGX_CONF_ERROR; | |
621 } | |
622 | |
623 | |
624 static char * | |
625 ngx_http_memcached_upstream_fail_timeout_unsupported(ngx_conf_t *cf, | |
626 ngx_command_t *cmd, void *conf) | |
627 { | |
628 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
629 "\"memcached_upstream_fail_timeout\" is not supported, " | |
630 "use the \"fail_timeout\" parameter of the \"server\" directive ", | |
631 "inside the \"upstream\" block"); | |
632 | |
633 return NGX_CONF_ERROR; | |
634 } |