Mercurial > hg > nginx
annotate src/http/modules/ngx_http_memcached_module.c @ 5008:fd84344f1df7
Fixed and improved the "*_bind" directives of proxying modules.
The "proxy_bind", "fastcgi_bind", "uwsgi_bind", "scgi_bind" and
"memcached_bind" directives are now inherited; inherited value
can be reset by the "off" parameter. Duplicate directives are
now detected. Parameter value can now contain variables.
author | Ruslan Ermilov <ru@nginx.com> |
---|---|
date | Wed, 16 Jan 2013 09:42:57 +0000 |
parents | a4512d7737f6 |
children | a30ea5c6451d |
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->rest = NGX_HTTP_MEMCACHED_END; | |
201 ctx->request = r; | |
202 | |
597 | 203 ngx_http_set_ctx(r, ctx, ngx_http_memcached_module); |
204 | |
581 | 205 u->input_filter_init = ngx_http_memcached_filter_init; |
206 u->input_filter = ngx_http_memcached_filter; | |
207 u->input_filter_ctx = ctx; | |
208 | |
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209 r->main->count++; |
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210 |
581 | 211 ngx_http_upstream_init(r); |
212 | |
213 return NGX_DONE; | |
214 } | |
215 | |
216 | |
217 static ngx_int_t | |
218 ngx_http_memcached_create_request(ngx_http_request_t *r) | |
219 { | |
1076 | 220 size_t len; |
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221 uintptr_t escape; |
1076 | 222 ngx_buf_t *b; |
223 ngx_chain_t *cl; | |
224 ngx_http_memcached_ctx_t *ctx; | |
225 ngx_http_variable_value_t *vv; | |
226 ngx_http_memcached_loc_conf_t *mlcf; | |
227 | |
228 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_memcached_module); | |
581 | 229 |
1076 | 230 vv = ngx_http_get_indexed_variable(r, mlcf->index); |
231 | |
232 if (vv == NULL || vv->not_found || vv->len == 0) { | |
233 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
234 "the \"$memcached_key\" variable is not set"); | |
235 return NGX_ERROR; | |
236 } | |
237 | |
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238 escape = 2 * ngx_escape_uri(NULL, vv->data, vv->len, NGX_ESCAPE_MEMCACHED); |
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239 |
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240 len = sizeof("get ") - 1 + vv->len + escape + sizeof(CRLF) - 1; |
581 | 241 |
242 b = ngx_create_temp_buf(r->pool, len); | |
243 if (b == NULL) { | |
244 return NGX_ERROR; | |
245 } | |
246 | |
247 cl = ngx_alloc_chain_link(r->pool); | |
248 if (cl == NULL) { | |
249 return NGX_ERROR; | |
250 } | |
251 | |
252 cl->buf = b; | |
253 cl->next = NULL; | |
254 | |
255 r->upstream->request_bufs = cl; | |
256 | |
257 *b->last++ = 'g'; *b->last++ = 'e'; *b->last++ = 't'; *b->last++ = ' '; | |
258 | |
597 | 259 ctx = ngx_http_get_module_ctx(r, ngx_http_memcached_module); |
260 | |
261 ctx->key.data = b->last; | |
262 | |
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263 if (escape == 0) { |
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264 b->last = ngx_copy(b->last, vv->data, vv->len); |
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265 |
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266 } else { |
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267 b->last = (u_char *) ngx_escape_uri(b->last, vv->data, vv->len, |
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268 NGX_ESCAPE_MEMCACHED); |
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269 } |
581 | 270 |
597 | 271 ctx->key.len = b->last - ctx->key.data; |
581 | 272 |
273 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
597 | 274 "http memcached request: \"%V\"", &ctx->key); |
581 | 275 |
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276 *b->last++ = CR; *b->last++ = LF; |
581 | 277 |
278 return NGX_OK; | |
279 } | |
280 | |
281 | |
282 static ngx_int_t | |
283 ngx_http_memcached_reinit_request(ngx_http_request_t *r) | |
284 { | |
285 return NGX_OK; | |
286 } | |
287 | |
288 | |
289 static ngx_int_t | |
290 ngx_http_memcached_process_header(ngx_http_request_t *r) | |
291 { | |
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292 u_char *p, *start; |
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293 ngx_str_t line; |
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294 ngx_uint_t flags; |
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295 ngx_table_elt_t *h; |
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296 ngx_http_upstream_t *u; |
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297 ngx_http_memcached_ctx_t *ctx; |
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298 ngx_http_memcached_loc_conf_t *mlcf; |
581 | 299 |
300 u = r->upstream; | |
301 | |
302 for (p = u->buffer.pos; p < u->buffer.last; p++) { | |
303 if (*p == LF) { | |
304 goto found; | |
305 } | |
306 } | |
307 | |
308 return NGX_AGAIN; | |
309 | |
310 found: | |
311 | |
312 *p = '\0'; | |
313 | |
314 line.len = p - u->buffer.pos - 1; | |
315 line.data = u->buffer.pos; | |
316 | |
317 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
318 "memcached: \"%V\"", &line); | |
319 | |
320 p = u->buffer.pos; | |
321 | |
597 | 322 ctx = ngx_http_get_module_ctx(r, ngx_http_memcached_module); |
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323 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_memcached_module); |
597 | 324 |
581 | 325 if (ngx_strncmp(p, "VALUE ", sizeof("VALUE ") - 1) == 0) { |
326 | |
327 p += sizeof("VALUE ") - 1; | |
328 | |
597 | 329 if (ngx_strncmp(p, ctx->key.data, ctx->key.len) != 0) { |
581 | 330 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
331 "memcached sent invalid key in response \"%V\" " | |
332 "for key \"%V\"", | |
597 | 333 &line, &ctx->key); |
581 | 334 |
335 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
336 } | |
337 | |
597 | 338 p += ctx->key.len; |
581 | 339 |
340 if (*p++ != ' ') { | |
341 goto no_valid; | |
342 } | |
343 | |
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344 /* flags */ |
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345 |
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346 start = p; |
581 | 347 |
348 while (*p) { | |
349 if (*p++ == ' ') { | |
4835
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Memcached: memcached_gzip_flag directive.
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350 if (mlcf->gzip_flag) { |
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351 goto flags; |
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352 } else { |
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353 goto length; |
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354 } |
581 | 355 } |
356 } | |
357 | |
358 goto no_valid; | |
359 | |
4835
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Memcached: memcached_gzip_flag directive.
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diff
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360 flags: |
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|
361 |
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362 flags = ngx_atoi(start, p - start - 1); |
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|
363 |
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Memcached: memcached_gzip_flag directive.
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364 if (flags == (ngx_uint_t) NGX_ERROR) { |
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diff
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|
365 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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Memcached: memcached_gzip_flag directive.
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366 "memcached sent invalid flags in response \"%V\" " |
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367 "for key \"%V\"", |
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368 &line, &ctx->key); |
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369 return NGX_HTTP_UPSTREAM_INVALID_HEADER; |
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370 } |
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371 |
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372 if (flags & mlcf->gzip_flag) { |
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diff
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|
373 h = ngx_list_push(&r->headers_out.headers); |
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374 if (h == NULL) { |
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375 return NGX_ERROR; |
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376 } |
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377 |
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|
378 h->hash = 1; |
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379 h->key.len = sizeof("Content-Encoding") - 1; |
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380 h->key.data = (u_char *) "Content-Encoding"; |
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381 h->value.len = sizeof("gzip") - 1; |
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382 h->value.data = (u_char *) "gzip"; |
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diff
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383 |
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384 r->headers_out.content_encoding = h; |
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385 } |
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Memcached: memcached_gzip_flag directive.
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386 |
581 | 387 length: |
388 | |
4835
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389 start = p; |
581 | 390 |
391 while (*p && *p++ != CR) { /* void */ } | |
392 | |
4835
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Memcached: memcached_gzip_flag directive.
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393 u->headers_in.content_length_n = ngx_atoof(start, p - start - 1); |
4117
103b0d9afe07
Upstream: content_length_n API change.
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diff
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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
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1554
diff
changeset
|
403 u->state->status = 200; |
581 | 404 u->buffer.pos = p + 1; |
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 |
413 u->headers_in.status_n = 404; | |
1567
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414 u->state->status = 404; |
4121
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415 u->keepalive = 1; |
581 | 416 |
417 return NGX_OK; | |
418 } | |
419 | |
420 no_valid: | |
421 | |
422 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
423 "memcached sent invalid response: \"%V\"", &line); | |
424 | |
425 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
426 } | |
427 | |
428 | |
429 static ngx_int_t | |
430 ngx_http_memcached_filter_init(void *data) | |
431 { | |
432 ngx_http_memcached_ctx_t *ctx = data; | |
433 | |
434 ngx_http_upstream_t *u; | |
435 | |
436 u = ctx->request->upstream; | |
437 | |
438 u->length += NGX_HTTP_MEMCACHED_END; | |
439 | |
440 return NGX_OK; | |
441 } | |
442 | |
443 | |
444 static ngx_int_t | |
445 ngx_http_memcached_filter(void *data, ssize_t bytes) | |
446 { | |
447 ngx_http_memcached_ctx_t *ctx = data; | |
448 | |
449 u_char *last; | |
450 ngx_buf_t *b; | |
451 ngx_chain_t *cl, **ll; | |
452 ngx_http_upstream_t *u; | |
453 | |
454 u = ctx->request->upstream; | |
455 b = &u->buffer; | |
456 | |
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dbddec65fdab
Upstream: r->upstream->length type change to off_t.
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diff
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|
457 if (u->length == (ssize_t) ctx->rest) { |
581 | 458 |
459 if (ngx_strncmp(b->last, | |
1548 | 460 ngx_http_memcached_end + NGX_HTTP_MEMCACHED_END - ctx->rest, |
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Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
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|
461 bytes) |
1548 | 462 != 0) |
581 | 463 { |
464 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
465 "memcached sent invalid trailer"); | |
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Igor Sysoev <igor@sysoev.ru>
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466 |
5d2acf153153
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diff
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|
467 u->length = 0; |
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diff
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|
468 ctx->rest = 0; |
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diff
changeset
|
469 |
5d2acf153153
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470 return NGX_OK; |
581 | 471 } |
472 | |
3487
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
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|
473 u->length -= bytes; |
5d2acf153153
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parents:
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diff
changeset
|
474 ctx->rest -= bytes; |
581 | 475 |
4121
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Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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476 if (u->length == 0) { |
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477 u->keepalive = 1; |
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|
478 } |
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|
479 |
581 | 480 return NGX_OK; |
481 } | |
482 | |
483 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
484 ll = &cl->next; | |
485 } | |
486 | |
487 cl = ngx_chain_get_free_buf(ctx->request->pool, &u->free_bufs); | |
488 if (cl == NULL) { | |
489 return NGX_ERROR; | |
490 } | |
491 | |
492 cl->buf->flush = 1; | |
493 cl->buf->memory = 1; | |
494 | |
495 *ll = cl; | |
496 | |
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diff
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|
497 last = b->last; |
30fcc8478d85
two commits those go together by mistake
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diff
changeset
|
498 cl->buf->pos = last; |
581 | 499 b->last += bytes; |
500 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
|
501 cl->buf->tag = u->output.tag; |
581 | 502 |
503 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0, | |
504 "memcached filter bytes:%z size:%z length:%z rest:%z", | |
505 bytes, b->last - b->pos, u->length, ctx->rest); | |
506 | |
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30fcc8478d85
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diff
changeset
|
507 if (bytes <= (ssize_t) (u->length - NGX_HTTP_MEMCACHED_END)) { |
581 | 508 u->length -= bytes; |
509 return NGX_OK; | |
510 } | |
511 | |
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1548
diff
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|
512 last += u->length - NGX_HTTP_MEMCACHED_END; |
581 | 513 |
514 if (ngx_strncmp(last, ngx_http_memcached_end, b->last - last) != 0) { | |
515 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
516 "memcached sent invalid trailer"); | |
4121
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diff
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|
517 |
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diff
changeset
|
518 b->last = last; |
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parents:
4118
diff
changeset
|
519 cl->buf->last = last; |
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diff
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|
520 u->length = 0; |
16c60162c35b
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diff
changeset
|
521 ctx->rest = 0; |
16c60162c35b
Keepalive support in memcached.
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diff
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|
522 |
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parents:
4118
diff
changeset
|
523 return NGX_OK; |
581 | 524 } |
525 | |
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parents:
1548
diff
changeset
|
526 ctx->rest -= b->last - last; |
581 | 527 b->last = last; |
528 cl->buf->last = last; | |
529 u->length = ctx->rest; | |
530 | |
4121
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Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
531 if (u->length == 0) { |
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Keepalive support in memcached.
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diff
changeset
|
532 u->keepalive = 1; |
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|
533 } |
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4118
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|
534 |
581 | 535 return NGX_OK; |
536 } | |
537 | |
538 | |
539 static void | |
540 ngx_http_memcached_abort_request(ngx_http_request_t *r) | |
541 { | |
542 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
543 "abort http memcached request"); | |
544 return; | |
545 } | |
546 | |
547 | |
548 static void | |
549 ngx_http_memcached_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
550 { | |
551 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
552 "finalize http memcached request"); | |
553 return; | |
554 } | |
555 | |
556 | |
557 static void * | |
558 ngx_http_memcached_create_loc_conf(ngx_conf_t *cf) | |
559 { | |
560 ngx_http_memcached_loc_conf_t *conf; | |
561 | |
562 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_memcached_loc_conf_t)); | |
563 if (conf == NULL) { | |
2912
c7d57b539248
return NULL instead of NGX_CONF_ERROR on a create conf failure
Igor Sysoev <igor@sysoev.ru>
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2392
diff
changeset
|
564 return NULL; |
581 | 565 } |
566 | |
567 /* | |
568 * set by ngx_pcalloc(): | |
569 * | |
570 * conf->upstream.bufs.num = 0; | |
571 * conf->upstream.next_upstream = 0; | |
572 * conf->upstream.temp_path = NULL; | |
573 * conf->upstream.uri = { 0, NULL }; | |
574 * conf->upstream.location = NULL; | |
575 */ | |
576 | |
5008
fd84344f1df7
Fixed and improved the "*_bind" directives of proxying modules.
Ruslan Ermilov <ru@nginx.com>
parents:
4835
diff
changeset
|
577 conf->upstream.local = NGX_CONF_UNSET_PTR; |
581 | 578 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; |
579 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
580 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
581 | |
582 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
583 | |
884 | 584 /* the hardcoded values */ |
581 | 585 conf->upstream.cyclic_temp_file = 0; |
629 | 586 conf->upstream.buffering = 0; |
587 conf->upstream.ignore_client_abort = 0; | |
581 | 588 conf->upstream.send_lowat = 0; |
589 conf->upstream.bufs.num = 0; | |
590 conf->upstream.busy_buffers_size = 0; | |
591 conf->upstream.max_temp_file_size = 0; | |
592 conf->upstream.temp_file_write_size = 0; | |
657 | 593 conf->upstream.intercept_errors = 1; |
675 | 594 conf->upstream.intercept_404 = 1; |
581 | 595 conf->upstream.pass_request_headers = 0; |
596 conf->upstream.pass_request_body = 0; | |
597 | |
1787
a37fe5ceacc4
inherit $memached_key index and memcached_pass upstream inside "if" block
Igor Sysoev <igor@sysoev.ru>
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1658
diff
changeset
|
598 conf->index = NGX_CONF_UNSET; |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
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diff
changeset
|
599 conf->gzip_flag = NGX_CONF_UNSET_UINT; |
1787
a37fe5ceacc4
inherit $memached_key index and memcached_pass upstream inside "if" block
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parents:
1658
diff
changeset
|
600 |
581 | 601 return conf; |
602 } | |
603 | |
604 | |
605 static char * | |
606 ngx_http_memcached_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
607 { | |
608 ngx_http_memcached_loc_conf_t *prev = parent; | |
609 ngx_http_memcached_loc_conf_t *conf = child; | |
610 | |
5008
fd84344f1df7
Fixed and improved the "*_bind" directives of proxying modules.
Ruslan Ermilov <ru@nginx.com>
parents:
4835
diff
changeset
|
611 ngx_conf_merge_ptr_value(conf->upstream.local, |
fd84344f1df7
Fixed and improved the "*_bind" directives of proxying modules.
Ruslan Ermilov <ru@nginx.com>
parents:
4835
diff
changeset
|
612 prev->upstream.local, NULL); |
fd84344f1df7
Fixed and improved the "*_bind" directives of proxying modules.
Ruslan Ermilov <ru@nginx.com>
parents:
4835
diff
changeset
|
613 |
581 | 614 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, |
615 prev->upstream.connect_timeout, 60000); | |
616 | |
617 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
618 prev->upstream.send_timeout, 60000); | |
619 | |
620 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
621 prev->upstream.read_timeout, 60000); | |
622 | |
623 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
624 prev->upstream.buffer_size, | |
625 (size_t) ngx_pagesize); | |
626 | |
627 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
628 prev->upstream.next_upstream, | |
629 (NGX_CONF_BITMASK_SET | |
630 |NGX_HTTP_UPSTREAM_FT_ERROR | |
631 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
632 | |
665 | 633 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { |
634 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
635 |NGX_HTTP_UPSTREAM_FT_OFF; | |
636 } | |
637 | |
1787
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inherit $memached_key index and memcached_pass upstream inside "if" block
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638 if (conf->upstream.upstream == NULL) { |
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inherit $memached_key index and memcached_pass upstream inside "if" block
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639 conf->upstream.upstream = prev->upstream.upstream; |
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inherit $memached_key index and memcached_pass upstream inside "if" block
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parents:
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640 } |
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inherit $memached_key index and memcached_pass upstream inside "if" block
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parents:
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changeset
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641 |
a37fe5ceacc4
inherit $memached_key index and memcached_pass upstream inside "if" block
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parents:
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642 if (conf->index == NGX_CONF_UNSET) { |
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inherit $memached_key index and memcached_pass upstream inside "if" block
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parents:
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643 conf->index = prev->index; |
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inherit $memached_key index and memcached_pass upstream inside "if" block
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parents:
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644 } |
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inherit $memached_key index and memcached_pass upstream inside "if" block
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parents:
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645 |
4835
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Memcached: memcached_gzip_flag directive.
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646 ngx_conf_merge_uint_value(conf->gzip_flag, prev->gzip_flag, 0); |
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Memcached: memcached_gzip_flag directive.
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647 |
581 | 648 return NGX_CONF_OK; |
649 } | |
650 | |
651 | |
652 static char * | |
653 ngx_http_memcached_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
654 { | |
2392 | 655 ngx_http_memcached_loc_conf_t *mlcf = conf; |
581 | 656 |
657 ngx_str_t *value; | |
807
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now the "memcached_pass" directive uses ngx_parse_url()
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658 ngx_url_t u; |
581 | 659 ngx_http_core_loc_conf_t *clcf; |
660 | |
2392 | 661 if (mlcf->upstream.upstream) { |
581 | 662 return "is duplicate"; |
663 } | |
664 | |
665 value = cf->args->elts; | |
666 | |
807
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now the "memcached_pass" directive uses ngx_parse_url()
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667 ngx_memzero(&u, sizeof(ngx_url_t)); |
581 | 668 |
807
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now the "memcached_pass" directive uses ngx_parse_url()
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669 u.url = value[1]; |
884 | 670 u.no_resolve = 1; |
815
b630109560b7
style fix: remove trailing spaces
Igor Sysoev <igor@sysoev.ru>
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671 |
2392 | 672 mlcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); |
673 if (mlcf->upstream.upstream == NULL) { | |
884 | 674 return NGX_CONF_ERROR; |
581 | 675 } |
676 | |
677 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
678 | |
679 clcf->handler = ngx_http_memcached_handler; | |
680 | |
681 if (clcf->name.data[clcf->name.len - 1] == '/') { | |
682 clcf->auto_redirect = 1; | |
683 } | |
684 | |
2392 | 685 mlcf->index = ngx_http_get_variable_index(cf, &ngx_http_memcached_key); |
1076 | 686 |
2392 | 687 if (mlcf->index == NGX_ERROR) { |
1076 | 688 return NGX_CONF_ERROR; |
689 } | |
690 | |
581 | 691 return NGX_CONF_OK; |
692 } |