Mercurial > hg > nginx
annotate src/http/modules/ngx_http_memcached_module.c @ 5765:d80543940f9a
Style: use ngx_str_set().
author | Tatsuhiko Kubo <cubicdaiya@gmail.com> |
---|---|
date | Wed, 09 Jul 2014 23:23:59 +0900 |
parents | 2fda9065d0f4 |
children | ab48149b77a6 |
rev | line source |
---|---|
581 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
581 | 5 */ |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 #include <ngx_http.h> | |
11 | |
12 | |
13 typedef struct { | |
14 ngx_http_upstream_conf_t upstream; | |
1076 | 15 ngx_int_t index; |
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16 ngx_uint_t gzip_flag; |
581 | 17 } ngx_http_memcached_loc_conf_t; |
18 | |
19 | |
20 typedef struct { | |
21 size_t rest; | |
22 ngx_http_request_t *request; | |
597 | 23 ngx_str_t key; |
581 | 24 } ngx_http_memcached_ctx_t; |
25 | |
26 | |
27 static ngx_int_t ngx_http_memcached_create_request(ngx_http_request_t *r); | |
28 static ngx_int_t ngx_http_memcached_reinit_request(ngx_http_request_t *r); | |
29 static ngx_int_t ngx_http_memcached_process_header(ngx_http_request_t *r); | |
30 static ngx_int_t ngx_http_memcached_filter_init(void *data); | |
31 static ngx_int_t ngx_http_memcached_filter(void *data, ssize_t bytes); | |
32 static void ngx_http_memcached_abort_request(ngx_http_request_t *r); | |
33 static void ngx_http_memcached_finalize_request(ngx_http_request_t *r, | |
34 ngx_int_t rc); | |
35 | |
36 static void *ngx_http_memcached_create_loc_conf(ngx_conf_t *cf); | |
37 static char *ngx_http_memcached_merge_loc_conf(ngx_conf_t *cf, | |
38 void *parent, void *child); | |
39 | |
40 static char *ngx_http_memcached_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
41 void *conf); | |
42 | |
43 | |
44 static ngx_conf_bitmask_t ngx_http_memcached_next_upstream_masks[] = { | |
45 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
46 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
47 { ngx_string("invalid_response"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
48 { ngx_string("not_found"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, | |
665 | 49 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, |
581 | 50 { ngx_null_string, 0 } |
51 }; | |
52 | |
53 | |
54 static ngx_command_t ngx_http_memcached_commands[] = { | |
55 | |
56 { ngx_string("memcached_pass"), | |
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57 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, |
581 | 58 ngx_http_memcached_pass, |
59 NGX_HTTP_LOC_CONF_OFFSET, | |
60 0, | |
61 NULL }, | |
62 | |
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63 { ngx_string("memcached_bind"), |
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64 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
3399 | 65 ngx_http_upstream_bind_set_slot, |
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66 NGX_HTTP_LOC_CONF_OFFSET, |
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67 offsetof(ngx_http_memcached_loc_conf_t, upstream.local), |
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68 NULL }, |
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69 |
581 | 70 { ngx_string("memcached_connect_timeout"), |
71 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
72 ngx_conf_set_msec_slot, | |
73 NGX_HTTP_LOC_CONF_OFFSET, | |
74 offsetof(ngx_http_memcached_loc_conf_t, upstream.connect_timeout), | |
75 NULL }, | |
76 | |
77 { ngx_string("memcached_send_timeout"), | |
78 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
79 ngx_conf_set_msec_slot, | |
80 NGX_HTTP_LOC_CONF_OFFSET, | |
81 offsetof(ngx_http_memcached_loc_conf_t, upstream.send_timeout), | |
82 NULL }, | |
83 | |
84 { ngx_string("memcached_buffer_size"), | |
85 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
86 ngx_conf_set_size_slot, | |
87 NGX_HTTP_LOC_CONF_OFFSET, | |
88 offsetof(ngx_http_memcached_loc_conf_t, upstream.buffer_size), | |
89 NULL }, | |
90 | |
91 { ngx_string("memcached_read_timeout"), | |
92 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
93 ngx_conf_set_msec_slot, | |
94 NGX_HTTP_LOC_CONF_OFFSET, | |
95 offsetof(ngx_http_memcached_loc_conf_t, upstream.read_timeout), | |
96 NULL }, | |
97 | |
98 { ngx_string("memcached_next_upstream"), | |
99 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
100 ngx_conf_set_bitmask_slot, | |
101 NGX_HTTP_LOC_CONF_OFFSET, | |
102 offsetof(ngx_http_memcached_loc_conf_t, upstream.next_upstream), | |
103 &ngx_http_memcached_next_upstream_masks }, | |
104 | |
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105 { ngx_string("memcached_gzip_flag"), |
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106 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
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107 ngx_conf_set_num_slot, |
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108 NGX_HTTP_LOC_CONF_OFFSET, |
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109 offsetof(ngx_http_memcached_loc_conf_t, gzip_flag), |
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110 NULL }, |
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111 |
581 | 112 ngx_null_command |
113 }; | |
114 | |
115 | |
667 | 116 static ngx_http_module_t ngx_http_memcached_module_ctx = { |
581 | 117 NULL, /* preconfiguration */ |
118 NULL, /* postconfiguration */ | |
119 | |
120 NULL, /* create main configuration */ | |
121 NULL, /* init main configuration */ | |
122 | |
123 NULL, /* create server configuration */ | |
124 NULL, /* merge server configuration */ | |
125 | |
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126 ngx_http_memcached_create_loc_conf, /* create location configuration */ |
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127 ngx_http_memcached_merge_loc_conf /* merge location configuration */ |
581 | 128 }; |
129 | |
130 | |
131 ngx_module_t ngx_http_memcached_module = { | |
132 NGX_MODULE_V1, | |
133 &ngx_http_memcached_module_ctx, /* module context */ | |
134 ngx_http_memcached_commands, /* module directives */ | |
135 NGX_HTTP_MODULE, /* module type */ | |
136 NULL, /* init master */ | |
137 NULL, /* init module */ | |
138 NULL, /* init process */ | |
139 NULL, /* init thread */ | |
140 NULL, /* exit thread */ | |
141 NULL, /* exit process */ | |
142 NULL, /* exit master */ | |
143 NGX_MODULE_V1_PADDING | |
144 }; | |
145 | |
146 | |
1076 | 147 static ngx_str_t ngx_http_memcached_key = ngx_string("memcached_key"); |
148 | |
149 | |
581 | 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 | |
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166 rc = ngx_http_discard_request_body(r); |
581 | 167 |
1374 | 168 if (rc != NGX_OK) { |
581 | 169 return rc; |
170 } | |
171 | |
172 if (ngx_http_set_content_type(r) != NGX_OK) { | |
173 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
174 } | |
175 | |
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176 if (ngx_http_upstream_create(r) != NGX_OK) { |
581 | 177 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
178 } | |
179 | |
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180 u = r->upstream; |
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181 |
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182 ngx_str_set(&u->schema, "memcached://"); |
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183 u->output.tag = (ngx_buf_tag_t) &ngx_http_memcached_module; |
581 | 184 |
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185 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_memcached_module); |
581 | 186 |
187 u->conf = &mlcf->upstream; | |
188 | |
189 u->create_request = ngx_http_memcached_create_request; | |
190 u->reinit_request = ngx_http_memcached_reinit_request; | |
191 u->process_header = ngx_http_memcached_process_header; | |
192 u->abort_request = ngx_http_memcached_abort_request; | |
193 u->finalize_request = ngx_http_memcached_finalize_request; | |
194 | |
195 ctx = ngx_palloc(r->pool, sizeof(ngx_http_memcached_ctx_t)); | |
196 if (ctx == NULL) { | |
197 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
198 } | |
199 | |
200 ctx->request = r; | |
201 | |
597 | 202 ngx_http_set_ctx(r, ctx, ngx_http_memcached_module); |
203 | |
581 | 204 u->input_filter_init = ngx_http_memcached_filter_init; |
205 u->input_filter = ngx_http_memcached_filter; | |
206 u->input_filter_ctx = ctx; | |
207 | |
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208 r->main->count++; |
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209 |
581 | 210 ngx_http_upstream_init(r); |
211 | |
212 return NGX_DONE; | |
213 } | |
214 | |
215 | |
216 static ngx_int_t | |
217 ngx_http_memcached_create_request(ngx_http_request_t *r) | |
218 { | |
1076 | 219 size_t len; |
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220 uintptr_t escape; |
1076 | 221 ngx_buf_t *b; |
222 ngx_chain_t *cl; | |
223 ngx_http_memcached_ctx_t *ctx; | |
224 ngx_http_variable_value_t *vv; | |
225 ngx_http_memcached_loc_conf_t *mlcf; | |
226 | |
227 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_memcached_module); | |
581 | 228 |
1076 | 229 vv = ngx_http_get_indexed_variable(r, mlcf->index); |
230 | |
231 if (vv == NULL || vv->not_found || vv->len == 0) { | |
232 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
233 "the \"$memcached_key\" variable is not set"); | |
234 return NGX_ERROR; | |
235 } | |
236 | |
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237 escape = 2 * ngx_escape_uri(NULL, vv->data, vv->len, NGX_ESCAPE_MEMCACHED); |
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238 |
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239 len = sizeof("get ") - 1 + vv->len + escape + sizeof(CRLF) - 1; |
581 | 240 |
241 b = ngx_create_temp_buf(r->pool, len); | |
242 if (b == NULL) { | |
243 return NGX_ERROR; | |
244 } | |
245 | |
246 cl = ngx_alloc_chain_link(r->pool); | |
247 if (cl == NULL) { | |
248 return NGX_ERROR; | |
249 } | |
250 | |
251 cl->buf = b; | |
252 cl->next = NULL; | |
253 | |
254 r->upstream->request_bufs = cl; | |
255 | |
256 *b->last++ = 'g'; *b->last++ = 'e'; *b->last++ = 't'; *b->last++ = ' '; | |
257 | |
597 | 258 ctx = ngx_http_get_module_ctx(r, ngx_http_memcached_module); |
259 | |
260 ctx->key.data = b->last; | |
261 | |
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262 if (escape == 0) { |
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263 b->last = ngx_copy(b->last, vv->data, vv->len); |
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264 |
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265 } else { |
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266 b->last = (u_char *) ngx_escape_uri(b->last, vv->data, vv->len, |
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267 NGX_ESCAPE_MEMCACHED); |
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268 } |
581 | 269 |
597 | 270 ctx->key.len = b->last - ctx->key.data; |
581 | 271 |
272 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
597 | 273 "http memcached request: \"%V\"", &ctx->key); |
581 | 274 |
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275 *b->last++ = CR; *b->last++ = LF; |
581 | 276 |
277 return NGX_OK; | |
278 } | |
279 | |
280 | |
281 static ngx_int_t | |
282 ngx_http_memcached_reinit_request(ngx_http_request_t *r) | |
283 { | |
284 return NGX_OK; | |
285 } | |
286 | |
287 | |
288 static ngx_int_t | |
289 ngx_http_memcached_process_header(ngx_http_request_t *r) | |
290 { | |
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291 u_char *p, *start; |
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292 ngx_str_t line; |
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293 ngx_uint_t flags; |
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294 ngx_table_elt_t *h; |
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295 ngx_http_upstream_t *u; |
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296 ngx_http_memcached_ctx_t *ctx; |
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297 ngx_http_memcached_loc_conf_t *mlcf; |
581 | 298 |
299 u = r->upstream; | |
300 | |
301 for (p = u->buffer.pos; p < u->buffer.last; p++) { | |
302 if (*p == LF) { | |
303 goto found; | |
304 } | |
305 } | |
306 | |
307 return NGX_AGAIN; | |
308 | |
309 found: | |
310 | |
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311 line.data = u->buffer.pos; |
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312 line.len = p - u->buffer.pos; |
581 | 313 |
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314 if (line.len == 0 || *(p - 1) != CR) { |
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315 goto no_valid; |
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316 } |
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317 |
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318 *p = '\0'; |
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319 line.len--; |
581 | 320 |
321 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
322 "memcached: \"%V\"", &line); | |
323 | |
324 p = u->buffer.pos; | |
325 | |
597 | 326 ctx = ngx_http_get_module_ctx(r, ngx_http_memcached_module); |
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|
327 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_memcached_module); |
597 | 328 |
581 | 329 if (ngx_strncmp(p, "VALUE ", sizeof("VALUE ") - 1) == 0) { |
330 | |
331 p += sizeof("VALUE ") - 1; | |
332 | |
597 | 333 if (ngx_strncmp(p, ctx->key.data, ctx->key.len) != 0) { |
581 | 334 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
335 "memcached sent invalid key in response \"%V\" " | |
336 "for key \"%V\"", | |
597 | 337 &line, &ctx->key); |
581 | 338 |
339 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
340 } | |
341 | |
597 | 342 p += ctx->key.len; |
581 | 343 |
344 if (*p++ != ' ') { | |
345 goto no_valid; | |
346 } | |
347 | |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
348 /* flags */ |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
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parents:
4499
diff
changeset
|
349 |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
350 start = p; |
581 | 351 |
352 while (*p) { | |
353 if (*p++ == ' ') { | |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
354 if (mlcf->gzip_flag) { |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
355 goto flags; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
356 } else { |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
357 goto length; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
358 } |
581 | 359 } |
360 } | |
361 | |
362 goto no_valid; | |
363 | |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
364 flags: |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
365 |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
366 flags = ngx_atoi(start, p - start - 1); |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
367 |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
368 if (flags == (ngx_uint_t) NGX_ERROR) { |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
369 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
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parents:
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diff
changeset
|
370 "memcached sent invalid flags in response \"%V\" " |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
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parents:
4499
diff
changeset
|
371 "for key \"%V\"", |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
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parents:
4499
diff
changeset
|
372 &line, &ctx->key); |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
373 return NGX_HTTP_UPSTREAM_INVALID_HEADER; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
374 } |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
375 |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
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parents:
4499
diff
changeset
|
376 if (flags & mlcf->gzip_flag) { |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
377 h = ngx_list_push(&r->headers_out.headers); |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
378 if (h == NULL) { |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
379 return NGX_ERROR; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
380 } |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
381 |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
382 h->hash = 1; |
5765
d80543940f9a
Style: use ngx_str_set().
Tatsuhiko Kubo <cubicdaiya@gmail.com>
parents:
5359
diff
changeset
|
383 ngx_str_set(&h->key, "Content-Encoding"); |
d80543940f9a
Style: use ngx_str_set().
Tatsuhiko Kubo <cubicdaiya@gmail.com>
parents:
5359
diff
changeset
|
384 ngx_str_set(&h->value, "gzip"); |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
385 r->headers_out.content_encoding = h; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
386 } |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
387 |
581 | 388 length: |
389 | |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
390 start = p; |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
391 p = line.data + line.len; |
581 | 392 |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
393 u->headers_in.content_length_n = ngx_atoof(start, p - start); |
4117
103b0d9afe07
Upstream: content_length_n API change.
Maxim Dounin <mdounin@mdounin.ru>
parents:
3523
diff
changeset
|
394 if (u->headers_in.content_length_n == -1) { |
581 | 395 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
396 "memcached sent invalid length in response \"%V\" " | |
397 "for key \"%V\"", | |
597 | 398 &line, &ctx->key); |
581 | 399 return NGX_HTTP_UPSTREAM_INVALID_HEADER; |
400 } | |
401 | |
402 u->headers_in.status_n = 200; | |
1567
31d4278d51c0
memcached did not set $upstream_response_time
Igor Sysoev <igor@sysoev.ru>
parents:
1554
diff
changeset
|
403 u->state->status = 200; |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
404 u->buffer.pos = p + sizeof(CRLF) - 1; |
581 | 405 |
406 return NGX_OK; | |
407 } | |
408 | |
409 if (ngx_strcmp(p, "END\x0d") == 0) { | |
410 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0, | |
597 | 411 "key: \"%V\" was not found by memcached", &ctx->key); |
581 | 412 |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
413 u->headers_in.content_length_n = 0; |
581 | 414 u->headers_in.status_n = 404; |
1567
31d4278d51c0
memcached did not set $upstream_response_time
Igor Sysoev <igor@sysoev.ru>
parents:
1554
diff
changeset
|
415 u->state->status = 404; |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
416 u->buffer.pos = p + sizeof("END" CRLF) - 1; |
4121
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
417 u->keepalive = 1; |
581 | 418 |
419 return NGX_OK; | |
420 } | |
421 | |
422 no_valid: | |
423 | |
424 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
425 "memcached sent invalid response: \"%V\"", &line); | |
426 | |
427 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
428 } | |
429 | |
430 | |
431 static ngx_int_t | |
432 ngx_http_memcached_filter_init(void *data) | |
433 { | |
434 ngx_http_memcached_ctx_t *ctx = data; | |
435 | |
436 ngx_http_upstream_t *u; | |
437 | |
438 u = ctx->request->upstream; | |
439 | |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
440 if (u->headers_in.status_n != 404) { |
5300
f538a67c9f77
Upstream: u->length now defaults to -1 (API change).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5226
diff
changeset
|
441 u->length = u->headers_in.content_length_n + NGX_HTTP_MEMCACHED_END; |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
442 ctx->rest = NGX_HTTP_MEMCACHED_END; |
5300
f538a67c9f77
Upstream: u->length now defaults to -1 (API change).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5226
diff
changeset
|
443 |
f538a67c9f77
Upstream: u->length now defaults to -1 (API change).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5226
diff
changeset
|
444 } else { |
f538a67c9f77
Upstream: u->length now defaults to -1 (API change).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5226
diff
changeset
|
445 u->length = 0; |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
446 } |
581 | 447 |
448 return NGX_OK; | |
449 } | |
450 | |
451 | |
452 static ngx_int_t | |
453 ngx_http_memcached_filter(void *data, ssize_t bytes) | |
454 { | |
455 ngx_http_memcached_ctx_t *ctx = data; | |
456 | |
457 u_char *last; | |
458 ngx_buf_t *b; | |
459 ngx_chain_t *cl, **ll; | |
460 ngx_http_upstream_t *u; | |
461 | |
462 u = ctx->request->upstream; | |
463 b = &u->buffer; | |
464 | |
4118
dbddec65fdab
Upstream: r->upstream->length type change to off_t.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4117
diff
changeset
|
465 if (u->length == (ssize_t) ctx->rest) { |
581 | 466 |
467 if (ngx_strncmp(b->last, | |
1548 | 468 ngx_http_memcached_end + NGX_HTTP_MEMCACHED_END - ctx->rest, |
3487
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
469 bytes) |
1548 | 470 != 0) |
581 | 471 { |
472 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
473 "memcached sent invalid trailer"); | |
3487
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
474 |
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
475 u->length = 0; |
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
476 ctx->rest = 0; |
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
477 |
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
478 return NGX_OK; |
581 | 479 } |
480 | |
3487
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
481 u->length -= bytes; |
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
482 ctx->rest -= bytes; |
581 | 483 |
4121
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
484 if (u->length == 0) { |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
485 u->keepalive = 1; |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
486 } |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
487 |
581 | 488 return NGX_OK; |
489 } | |
490 | |
491 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
492 ll = &cl->next; | |
493 } | |
494 | |
495 cl = ngx_chain_get_free_buf(ctx->request->pool, &u->free_bufs); | |
496 if (cl == NULL) { | |
497 return NGX_ERROR; | |
498 } | |
499 | |
500 cl->buf->flush = 1; | |
501 cl->buf->memory = 1; | |
502 | |
503 *ll = cl; | |
504 | |
1554
30fcc8478d85
two commits those go together by mistake
Igor Sysoev <igor@sysoev.ru>
parents:
1548
diff
changeset
|
505 last = b->last; |
30fcc8478d85
two commits those go together by mistake
Igor Sysoev <igor@sysoev.ru>
parents:
1548
diff
changeset
|
506 cl->buf->pos = last; |
581 | 507 b->last += bytes; |
508 cl->buf->last = b->last; | |
1908
f2953601ed3c
fix memory leak in long-lived non buffered connections
Igor Sysoev <igor@sysoev.ru>
parents:
1788
diff
changeset
|
509 cl->buf->tag = u->output.tag; |
581 | 510 |
511 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0, | |
512 "memcached filter bytes:%z size:%z length:%z rest:%z", | |
513 bytes, b->last - b->pos, u->length, ctx->rest); | |
514 | |
1554
30fcc8478d85
two commits those go together by mistake
Igor Sysoev <igor@sysoev.ru>
parents:
1548
diff
changeset
|
515 if (bytes <= (ssize_t) (u->length - NGX_HTTP_MEMCACHED_END)) { |
581 | 516 u->length -= bytes; |
517 return NGX_OK; | |
518 } | |
519 | |
5359
2fda9065d0f4
Win32: Borland C compatibility fixes.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5300
diff
changeset
|
520 last += (size_t) (u->length - NGX_HTTP_MEMCACHED_END); |
581 | 521 |
522 if (ngx_strncmp(last, ngx_http_memcached_end, b->last - last) != 0) { | |
523 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
524 "memcached sent invalid trailer"); | |
4121
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
525 |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
526 b->last = last; |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
527 cl->buf->last = last; |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
528 u->length = 0; |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
529 ctx->rest = 0; |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
530 |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
531 return NGX_OK; |
581 | 532 } |
533 | |
1554
30fcc8478d85
two commits those go together by mistake
Igor Sysoev <igor@sysoev.ru>
parents:
1548
diff
changeset
|
534 ctx->rest -= b->last - last; |
581 | 535 b->last = last; |
536 cl->buf->last = last; | |
537 u->length = ctx->rest; | |
538 | |
4121
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
539 if (u->length == 0) { |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
540 u->keepalive = 1; |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
541 } |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
542 |
581 | 543 return NGX_OK; |
544 } | |
545 | |
546 | |
547 static void | |
548 ngx_http_memcached_abort_request(ngx_http_request_t *r) | |
549 { | |
550 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
551 "abort http memcached request"); | |
552 return; | |
553 } | |
554 | |
555 | |
556 static void | |
557 ngx_http_memcached_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
558 { | |
559 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
560 "finalize http memcached request"); | |
561 return; | |
562 } | |
563 | |
564 | |
565 static void * | |
566 ngx_http_memcached_create_loc_conf(ngx_conf_t *cf) | |
567 { | |
568 ngx_http_memcached_loc_conf_t *conf; | |
569 | |
570 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_memcached_loc_conf_t)); | |
571 if (conf == NULL) { | |
2912
c7d57b539248
return NULL instead of NGX_CONF_ERROR on a create conf failure
Igor Sysoev <igor@sysoev.ru>
parents:
2392
diff
changeset
|
572 return NULL; |
581 | 573 } |
574 | |
575 /* | |
576 * set by ngx_pcalloc(): | |
577 * | |
578 * conf->upstream.bufs.num = 0; | |
579 * conf->upstream.next_upstream = 0; | |
580 * conf->upstream.temp_path = NULL; | |
581 * conf->upstream.uri = { 0, NULL }; | |
582 * conf->upstream.location = NULL; | |
583 */ | |
584 | |
5008
fd84344f1df7
Fixed and improved the "*_bind" directives of proxying modules.
Ruslan Ermilov <ru@nginx.com>
parents:
4835
diff
changeset
|
585 conf->upstream.local = NGX_CONF_UNSET_PTR; |
581 | 586 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; |
587 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
588 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
589 | |
590 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
591 | |
884 | 592 /* the hardcoded values */ |
581 | 593 conf->upstream.cyclic_temp_file = 0; |
629 | 594 conf->upstream.buffering = 0; |
595 conf->upstream.ignore_client_abort = 0; | |
581 | 596 conf->upstream.send_lowat = 0; |
597 conf->upstream.bufs.num = 0; | |
598 conf->upstream.busy_buffers_size = 0; | |
599 conf->upstream.max_temp_file_size = 0; | |
600 conf->upstream.temp_file_write_size = 0; | |
657 | 601 conf->upstream.intercept_errors = 1; |
675 | 602 conf->upstream.intercept_404 = 1; |
581 | 603 conf->upstream.pass_request_headers = 0; |
604 conf->upstream.pass_request_body = 0; | |
605 | |
1787
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606 conf->index = NGX_CONF_UNSET; |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
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607 conf->gzip_flag = NGX_CONF_UNSET_UINT; |
1787
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608 |
581 | 609 return conf; |
610 } | |
611 | |
612 | |
613 static char * | |
614 ngx_http_memcached_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
615 { | |
616 ngx_http_memcached_loc_conf_t *prev = parent; | |
617 ngx_http_memcached_loc_conf_t *conf = child; | |
618 | |
5008
fd84344f1df7
Fixed and improved the "*_bind" directives of proxying modules.
Ruslan Ermilov <ru@nginx.com>
parents:
4835
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changeset
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619 ngx_conf_merge_ptr_value(conf->upstream.local, |
fd84344f1df7
Fixed and improved the "*_bind" directives of proxying modules.
Ruslan Ermilov <ru@nginx.com>
parents:
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diff
changeset
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620 prev->upstream.local, NULL); |
fd84344f1df7
Fixed and improved the "*_bind" directives of proxying modules.
Ruslan Ermilov <ru@nginx.com>
parents:
4835
diff
changeset
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621 |
581 | 622 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, |
623 prev->upstream.connect_timeout, 60000); | |
624 | |
625 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
626 prev->upstream.send_timeout, 60000); | |
627 | |
628 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
629 prev->upstream.read_timeout, 60000); | |
630 | |
631 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
632 prev->upstream.buffer_size, | |
633 (size_t) ngx_pagesize); | |
634 | |
635 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
636 prev->upstream.next_upstream, | |
637 (NGX_CONF_BITMASK_SET | |
638 |NGX_HTTP_UPSTREAM_FT_ERROR | |
639 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
640 | |
665 | 641 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { |
642 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
643 |NGX_HTTP_UPSTREAM_FT_OFF; | |
644 } | |
645 | |
1787
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inherit $memached_key index and memcached_pass upstream inside "if" block
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parents:
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diff
changeset
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646 if (conf->upstream.upstream == NULL) { |
a37fe5ceacc4
inherit $memached_key index and memcached_pass upstream inside "if" block
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parents:
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diff
changeset
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647 conf->upstream.upstream = prev->upstream.upstream; |
a37fe5ceacc4
inherit $memached_key index and memcached_pass upstream inside "if" block
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parents:
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diff
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648 } |
a37fe5ceacc4
inherit $memached_key index and memcached_pass upstream inside "if" block
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parents:
1658
diff
changeset
|
649 |
a37fe5ceacc4
inherit $memached_key index and memcached_pass upstream inside "if" block
Igor Sysoev <igor@sysoev.ru>
parents:
1658
diff
changeset
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650 if (conf->index == NGX_CONF_UNSET) { |
a37fe5ceacc4
inherit $memached_key index and memcached_pass upstream inside "if" block
Igor Sysoev <igor@sysoev.ru>
parents:
1658
diff
changeset
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651 conf->index = prev->index; |
a37fe5ceacc4
inherit $memached_key index and memcached_pass upstream inside "if" block
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parents:
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diff
changeset
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652 } |
a37fe5ceacc4
inherit $memached_key index and memcached_pass upstream inside "if" block
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parents:
1658
diff
changeset
|
653 |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
654 ngx_conf_merge_uint_value(conf->gzip_flag, prev->gzip_flag, 0); |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
655 |
581 | 656 return NGX_CONF_OK; |
657 } | |
658 | |
659 | |
660 static char * | |
661 ngx_http_memcached_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
662 { | |
2392 | 663 ngx_http_memcached_loc_conf_t *mlcf = conf; |
581 | 664 |
665 ngx_str_t *value; | |
807
3095bf59059b
now the "memcached_pass" directive uses ngx_parse_url()
Igor Sysoev <igor@sysoev.ru>
parents:
675
diff
changeset
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666 ngx_url_t u; |
581 | 667 ngx_http_core_loc_conf_t *clcf; |
668 | |
2392 | 669 if (mlcf->upstream.upstream) { |
581 | 670 return "is duplicate"; |
671 } | |
672 | |
673 value = cf->args->elts; | |
674 | |
807
3095bf59059b
now the "memcached_pass" directive uses ngx_parse_url()
Igor Sysoev <igor@sysoev.ru>
parents:
675
diff
changeset
|
675 ngx_memzero(&u, sizeof(ngx_url_t)); |
581 | 676 |
807
3095bf59059b
now the "memcached_pass" directive uses ngx_parse_url()
Igor Sysoev <igor@sysoev.ru>
parents:
675
diff
changeset
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677 u.url = value[1]; |
884 | 678 u.no_resolve = 1; |
815
b630109560b7
style fix: remove trailing spaces
Igor Sysoev <igor@sysoev.ru>
parents:
807
diff
changeset
|
679 |
2392 | 680 mlcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); |
681 if (mlcf->upstream.upstream == NULL) { | |
884 | 682 return NGX_CONF_ERROR; |
581 | 683 } |
684 | |
685 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
686 | |
687 clcf->handler = ngx_http_memcached_handler; | |
688 | |
689 if (clcf->name.data[clcf->name.len - 1] == '/') { | |
690 clcf->auto_redirect = 1; | |
691 } | |
692 | |
2392 | 693 mlcf->index = ngx_http_get_variable_index(cf, &ngx_http_memcached_key); |
1076 | 694 |
2392 | 695 if (mlcf->index == NGX_ERROR) { |
1076 | 696 return NGX_CONF_ERROR; |
697 } | |
698 | |
581 | 699 return NGX_CONF_OK; |
700 } |