Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_memcached_module.c @ 4246:d3568507db51 stable-1.0
Merging r4132, r4134, r4143, r4183, r4191, r4199:
Various fixes related to error messages:
*) Removed old warning that suggested to use "server_name_in_redirect off"
(now the default) in place of no longer supported "server_name *".
*) Fixing directive name in error message if types hash size is not enough.
*) Replaced "can not" with "cannot" and "could not" in a bunch of places.
Fixed nearby grammar errors.
*) Overhauled error messages.
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Tue, 01 Nov 2011 13:24:50 +0000 |
parents | 66a244ee8cf7 |
children | 103b0d9afe07 4919fb357a5d |
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_http.h> | |
10 | |
11 | |
12 typedef struct { | |
13 ngx_http_upstream_conf_t upstream; | |
1076 | 14 ngx_int_t index; |
581 | 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 | |
41 | |
42 static ngx_conf_bitmask_t ngx_http_memcached_next_upstream_masks[] = { | |
43 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
44 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
45 { ngx_string("invalid_response"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
46 { ngx_string("not_found"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, | |
665 | 47 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, |
581 | 48 { ngx_null_string, 0 } |
49 }; | |
50 | |
51 | |
52 static ngx_command_t ngx_http_memcached_commands[] = { | |
53 | |
54 { ngx_string("memcached_pass"), | |
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55 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, |
581 | 56 ngx_http_memcached_pass, |
57 NGX_HTTP_LOC_CONF_OFFSET, | |
58 0, | |
59 NULL }, | |
60 | |
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61 { ngx_string("memcached_bind"), |
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62 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
3399 | 63 ngx_http_upstream_bind_set_slot, |
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64 NGX_HTTP_LOC_CONF_OFFSET, |
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65 offsetof(ngx_http_memcached_loc_conf_t, upstream.local), |
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66 NULL }, |
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67 |
581 | 68 { ngx_string("memcached_connect_timeout"), |
69 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
70 ngx_conf_set_msec_slot, | |
71 NGX_HTTP_LOC_CONF_OFFSET, | |
72 offsetof(ngx_http_memcached_loc_conf_t, upstream.connect_timeout), | |
73 NULL }, | |
74 | |
75 { ngx_string("memcached_send_timeout"), | |
76 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
77 ngx_conf_set_msec_slot, | |
78 NGX_HTTP_LOC_CONF_OFFSET, | |
79 offsetof(ngx_http_memcached_loc_conf_t, upstream.send_timeout), | |
80 NULL }, | |
81 | |
82 { ngx_string("memcached_buffer_size"), | |
83 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
84 ngx_conf_set_size_slot, | |
85 NGX_HTTP_LOC_CONF_OFFSET, | |
86 offsetof(ngx_http_memcached_loc_conf_t, upstream.buffer_size), | |
87 NULL }, | |
88 | |
89 { ngx_string("memcached_read_timeout"), | |
90 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
91 ngx_conf_set_msec_slot, | |
92 NGX_HTTP_LOC_CONF_OFFSET, | |
93 offsetof(ngx_http_memcached_loc_conf_t, upstream.read_timeout), | |
94 NULL }, | |
95 | |
96 { ngx_string("memcached_next_upstream"), | |
97 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
98 ngx_conf_set_bitmask_slot, | |
99 NGX_HTTP_LOC_CONF_OFFSET, | |
100 offsetof(ngx_http_memcached_loc_conf_t, upstream.next_upstream), | |
101 &ngx_http_memcached_next_upstream_masks }, | |
102 | |
103 ngx_null_command | |
104 }; | |
105 | |
106 | |
667 | 107 static ngx_http_module_t ngx_http_memcached_module_ctx = { |
581 | 108 NULL, /* preconfiguration */ |
109 NULL, /* postconfiguration */ | |
110 | |
111 NULL, /* create main configuration */ | |
112 NULL, /* init main configuration */ | |
113 | |
114 NULL, /* create server configuration */ | |
115 NULL, /* merge server configuration */ | |
116 | |
117 ngx_http_memcached_create_loc_conf, /* create location configration */ | |
118 ngx_http_memcached_merge_loc_conf /* merge location configration */ | |
119 }; | |
120 | |
121 | |
122 ngx_module_t ngx_http_memcached_module = { | |
123 NGX_MODULE_V1, | |
124 &ngx_http_memcached_module_ctx, /* module context */ | |
125 ngx_http_memcached_commands, /* module directives */ | |
126 NGX_HTTP_MODULE, /* module type */ | |
127 NULL, /* init master */ | |
128 NULL, /* init module */ | |
129 NULL, /* init process */ | |
130 NULL, /* init thread */ | |
131 NULL, /* exit thread */ | |
132 NULL, /* exit process */ | |
133 NULL, /* exit master */ | |
134 NGX_MODULE_V1_PADDING | |
135 }; | |
136 | |
137 | |
1076 | 138 static ngx_str_t ngx_http_memcached_key = ngx_string("memcached_key"); |
139 | |
140 | |
581 | 141 #define NGX_HTTP_MEMCACHED_END (sizeof(ngx_http_memcached_end) - 1) |
142 static u_char ngx_http_memcached_end[] = CRLF "END" CRLF; | |
143 | |
144 | |
145 static ngx_int_t | |
146 ngx_http_memcached_handler(ngx_http_request_t *r) | |
147 { | |
148 ngx_int_t rc; | |
149 ngx_http_upstream_t *u; | |
150 ngx_http_memcached_ctx_t *ctx; | |
151 ngx_http_memcached_loc_conf_t *mlcf; | |
152 | |
645 | 153 if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) { |
581 | 154 return NGX_HTTP_NOT_ALLOWED; |
155 } | |
156 | |
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157 rc = ngx_http_discard_request_body(r); |
581 | 158 |
1374 | 159 if (rc != NGX_OK) { |
581 | 160 return rc; |
161 } | |
162 | |
163 if (ngx_http_set_content_type(r) != NGX_OK) { | |
164 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
165 } | |
166 | |
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167 if (ngx_http_upstream_create(r) != NGX_OK) { |
581 | 168 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
169 } | |
170 | |
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171 u = r->upstream; |
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172 |
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173 ngx_str_set(&u->schema, "memcached://"); |
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174 u->output.tag = (ngx_buf_tag_t) &ngx_http_memcached_module; |
581 | 175 |
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176 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_memcached_module); |
581 | 177 |
178 u->conf = &mlcf->upstream; | |
179 | |
180 u->create_request = ngx_http_memcached_create_request; | |
181 u->reinit_request = ngx_http_memcached_reinit_request; | |
182 u->process_header = ngx_http_memcached_process_header; | |
183 u->abort_request = ngx_http_memcached_abort_request; | |
184 u->finalize_request = ngx_http_memcached_finalize_request; | |
185 | |
186 ctx = ngx_palloc(r->pool, sizeof(ngx_http_memcached_ctx_t)); | |
187 if (ctx == NULL) { | |
188 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
189 } | |
190 | |
191 ctx->rest = NGX_HTTP_MEMCACHED_END; | |
192 ctx->request = r; | |
193 | |
597 | 194 ngx_http_set_ctx(r, ctx, ngx_http_memcached_module); |
195 | |
581 | 196 u->input_filter_init = ngx_http_memcached_filter_init; |
197 u->input_filter = ngx_http_memcached_filter; | |
198 u->input_filter_ctx = ctx; | |
199 | |
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200 r->main->count++; |
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201 |
581 | 202 ngx_http_upstream_init(r); |
203 | |
204 return NGX_DONE; | |
205 } | |
206 | |
207 | |
208 static ngx_int_t | |
209 ngx_http_memcached_create_request(ngx_http_request_t *r) | |
210 { | |
1076 | 211 size_t len; |
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212 uintptr_t escape; |
1076 | 213 ngx_buf_t *b; |
214 ngx_chain_t *cl; | |
215 ngx_http_memcached_ctx_t *ctx; | |
216 ngx_http_variable_value_t *vv; | |
217 ngx_http_memcached_loc_conf_t *mlcf; | |
218 | |
219 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_memcached_module); | |
581 | 220 |
1076 | 221 vv = ngx_http_get_indexed_variable(r, mlcf->index); |
222 | |
223 if (vv == NULL || vv->not_found || vv->len == 0) { | |
224 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
225 "the \"$memcached_key\" variable is not set"); | |
226 return NGX_ERROR; | |
227 } | |
228 | |
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229 escape = 2 * ngx_escape_uri(NULL, vv->data, vv->len, NGX_ESCAPE_MEMCACHED); |
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230 |
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231 len = sizeof("get ") - 1 + vv->len + escape + sizeof(CRLF) - 1; |
581 | 232 |
233 b = ngx_create_temp_buf(r->pool, len); | |
234 if (b == NULL) { | |
235 return NGX_ERROR; | |
236 } | |
237 | |
238 cl = ngx_alloc_chain_link(r->pool); | |
239 if (cl == NULL) { | |
240 return NGX_ERROR; | |
241 } | |
242 | |
243 cl->buf = b; | |
244 cl->next = NULL; | |
245 | |
246 r->upstream->request_bufs = cl; | |
247 | |
248 *b->last++ = 'g'; *b->last++ = 'e'; *b->last++ = 't'; *b->last++ = ' '; | |
249 | |
597 | 250 ctx = ngx_http_get_module_ctx(r, ngx_http_memcached_module); |
251 | |
252 ctx->key.data = b->last; | |
253 | |
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254 if (escape == 0) { |
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255 b->last = ngx_copy(b->last, vv->data, vv->len); |
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256 |
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257 } else { |
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258 b->last = (u_char *) ngx_escape_uri(b->last, vv->data, vv->len, |
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259 NGX_ESCAPE_MEMCACHED); |
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260 } |
581 | 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 |
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267 *b->last++ = CR; *b->last++ = LF; |
581 | 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; | |
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357 u->state->status = 200; |
581 | 358 u->buffer.pos = p + 1; |
359 | |
360 return NGX_OK; | |
361 } | |
362 | |
363 if (ngx_strcmp(p, "END\x0d") == 0) { | |
364 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0, | |
597 | 365 "key: \"%V\" was not found by memcached", &ctx->key); |
581 | 366 |
367 u->headers_in.status_n = 404; | |
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368 u->state->status = 404; |
581 | 369 |
370 return NGX_OK; | |
371 } | |
372 | |
373 no_valid: | |
374 | |
375 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
376 "memcached sent invalid response: \"%V\"", &line); | |
377 | |
378 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
379 } | |
380 | |
381 | |
382 static ngx_int_t | |
383 ngx_http_memcached_filter_init(void *data) | |
384 { | |
385 ngx_http_memcached_ctx_t *ctx = data; | |
386 | |
387 ngx_http_upstream_t *u; | |
388 | |
389 u = ctx->request->upstream; | |
390 | |
391 u->length += NGX_HTTP_MEMCACHED_END; | |
392 | |
393 return NGX_OK; | |
394 } | |
395 | |
396 | |
397 static ngx_int_t | |
398 ngx_http_memcached_filter(void *data, ssize_t bytes) | |
399 { | |
400 ngx_http_memcached_ctx_t *ctx = data; | |
401 | |
402 u_char *last; | |
403 ngx_buf_t *b; | |
404 ngx_chain_t *cl, **ll; | |
405 ngx_http_upstream_t *u; | |
406 | |
407 u = ctx->request->upstream; | |
408 b = &u->buffer; | |
409 | |
410 if (u->length == ctx->rest) { | |
411 | |
412 if (ngx_strncmp(b->last, | |
1548 | 413 ngx_http_memcached_end + NGX_HTTP_MEMCACHED_END - ctx->rest, |
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414 bytes) |
1548 | 415 != 0) |
581 | 416 { |
417 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
418 "memcached sent invalid trailer"); | |
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419 |
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420 u->length = 0; |
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421 ctx->rest = 0; |
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422 |
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423 return NGX_OK; |
581 | 424 } |
425 | |
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426 u->length -= bytes; |
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427 ctx->rest -= bytes; |
581 | 428 |
429 return NGX_OK; | |
430 } | |
431 | |
432 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
433 ll = &cl->next; | |
434 } | |
435 | |
436 cl = ngx_chain_get_free_buf(ctx->request->pool, &u->free_bufs); | |
437 if (cl == NULL) { | |
438 return NGX_ERROR; | |
439 } | |
440 | |
441 cl->buf->flush = 1; | |
442 cl->buf->memory = 1; | |
443 | |
444 *ll = cl; | |
445 | |
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446 last = b->last; |
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447 cl->buf->pos = last; |
581 | 448 b->last += bytes; |
449 cl->buf->last = b->last; | |
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450 cl->buf->tag = u->output.tag; |
581 | 451 |
452 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0, | |
453 "memcached filter bytes:%z size:%z length:%z rest:%z", | |
454 bytes, b->last - b->pos, u->length, ctx->rest); | |
455 | |
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456 if (bytes <= (ssize_t) (u->length - NGX_HTTP_MEMCACHED_END)) { |
581 | 457 u->length -= bytes; |
458 return NGX_OK; | |
459 } | |
460 | |
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461 last += u->length - NGX_HTTP_MEMCACHED_END; |
581 | 462 |
463 if (ngx_strncmp(last, ngx_http_memcached_end, b->last - last) != 0) { | |
464 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
465 "memcached sent invalid trailer"); | |
466 } | |
467 | |
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468 ctx->rest -= b->last - last; |
581 | 469 b->last = last; |
470 cl->buf->last = last; | |
471 u->length = ctx->rest; | |
472 | |
473 return NGX_OK; | |
474 } | |
475 | |
476 | |
477 static void | |
478 ngx_http_memcached_abort_request(ngx_http_request_t *r) | |
479 { | |
480 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
481 "abort http memcached request"); | |
482 return; | |
483 } | |
484 | |
485 | |
486 static void | |
487 ngx_http_memcached_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
488 { | |
489 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
490 "finalize http memcached request"); | |
491 return; | |
492 } | |
493 | |
494 | |
495 static void * | |
496 ngx_http_memcached_create_loc_conf(ngx_conf_t *cf) | |
497 { | |
498 ngx_http_memcached_loc_conf_t *conf; | |
499 | |
500 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_memcached_loc_conf_t)); | |
501 if (conf == NULL) { | |
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502 return NULL; |
581 | 503 } |
504 | |
505 /* | |
506 * set by ngx_pcalloc(): | |
507 * | |
508 * conf->upstream.bufs.num = 0; | |
509 * conf->upstream.next_upstream = 0; | |
510 * conf->upstream.temp_path = NULL; | |
511 * conf->upstream.uri = { 0, NULL }; | |
512 * conf->upstream.location = NULL; | |
513 */ | |
514 | |
515 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; | |
516 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
517 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
518 | |
519 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
520 | |
884 | 521 /* the hardcoded values */ |
581 | 522 conf->upstream.cyclic_temp_file = 0; |
629 | 523 conf->upstream.buffering = 0; |
524 conf->upstream.ignore_client_abort = 0; | |
581 | 525 conf->upstream.send_lowat = 0; |
526 conf->upstream.bufs.num = 0; | |
527 conf->upstream.busy_buffers_size = 0; | |
528 conf->upstream.max_temp_file_size = 0; | |
529 conf->upstream.temp_file_write_size = 0; | |
657 | 530 conf->upstream.intercept_errors = 1; |
675 | 531 conf->upstream.intercept_404 = 1; |
581 | 532 conf->upstream.pass_request_headers = 0; |
533 conf->upstream.pass_request_body = 0; | |
534 | |
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535 conf->index = NGX_CONF_UNSET; |
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536 |
581 | 537 return conf; |
538 } | |
539 | |
540 | |
541 static char * | |
542 ngx_http_memcached_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
543 { | |
544 ngx_http_memcached_loc_conf_t *prev = parent; | |
545 ngx_http_memcached_loc_conf_t *conf = child; | |
546 | |
547 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, | |
548 prev->upstream.connect_timeout, 60000); | |
549 | |
550 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
551 prev->upstream.send_timeout, 60000); | |
552 | |
553 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
554 prev->upstream.read_timeout, 60000); | |
555 | |
556 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
557 prev->upstream.buffer_size, | |
558 (size_t) ngx_pagesize); | |
559 | |
560 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
561 prev->upstream.next_upstream, | |
562 (NGX_CONF_BITMASK_SET | |
563 |NGX_HTTP_UPSTREAM_FT_ERROR | |
564 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
565 | |
665 | 566 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { |
567 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
568 |NGX_HTTP_UPSTREAM_FT_OFF; | |
569 } | |
570 | |
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571 if (conf->upstream.upstream == NULL) { |
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572 conf->upstream.upstream = prev->upstream.upstream; |
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573 } |
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574 |
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575 if (conf->index == NGX_CONF_UNSET) { |
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576 conf->index = prev->index; |
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577 } |
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578 |
581 | 579 return NGX_CONF_OK; |
580 } | |
581 | |
582 | |
583 static char * | |
584 ngx_http_memcached_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
585 { | |
2392 | 586 ngx_http_memcached_loc_conf_t *mlcf = conf; |
581 | 587 |
588 ngx_str_t *value; | |
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589 ngx_url_t u; |
581 | 590 ngx_http_core_loc_conf_t *clcf; |
591 | |
2392 | 592 if (mlcf->upstream.upstream) { |
581 | 593 return "is duplicate"; |
594 } | |
595 | |
596 value = cf->args->elts; | |
597 | |
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598 ngx_memzero(&u, sizeof(ngx_url_t)); |
581 | 599 |
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600 u.url = value[1]; |
884 | 601 u.no_resolve = 1; |
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602 |
2392 | 603 mlcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); |
604 if (mlcf->upstream.upstream == NULL) { | |
884 | 605 return NGX_CONF_ERROR; |
581 | 606 } |
607 | |
608 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
609 | |
610 clcf->handler = ngx_http_memcached_handler; | |
611 | |
612 if (clcf->name.data[clcf->name.len - 1] == '/') { | |
613 clcf->auto_redirect = 1; | |
614 } | |
615 | |
2392 | 616 mlcf->index = ngx_http_get_variable_index(cf, &ngx_http_memcached_key); |
1076 | 617 |
2392 | 618 if (mlcf->index == NGX_ERROR) { |
1076 | 619 return NGX_CONF_ERROR; |
620 } | |
621 | |
581 | 622 return NGX_CONF_OK; |
623 } |