Mercurial > hg > nginx
annotate src/http/modules/ngx_http_memcached_module.c @ 6530:1d0e03db9f8e
Upstream: the "transparent" parameter of proxy_bind and friends.
This parameter lets binding the proxy connection to a non-local address.
Upstream will see the connection as coming from that address.
When used with $remote_addr, upstream will accept the connection from real
client address.
Example:
proxy_bind $remote_addr transparent;
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Fri, 18 Dec 2015 19:05:27 +0300 |
parents | f01ab2dbcfdc |
children | 06cf0c4b8618 |
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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proxy_bind, fastcgi_bind, and memcached_bind
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63 { ngx_string("memcached_bind"), |
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Upstream: the "transparent" parameter of proxy_bind and friends.
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64 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, |
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_next_upstream_tries"), |
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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, upstream.next_upstream_tries), |
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110 NULL }, |
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111 |
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112 { ngx_string("memcached_next_upstream_timeout"), |
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113 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
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114 ngx_conf_set_msec_slot, |
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115 NGX_HTTP_LOC_CONF_OFFSET, |
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116 offsetof(ngx_http_memcached_loc_conf_t, upstream.next_upstream_timeout), |
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117 NULL }, |
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118 |
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119 { ngx_string("memcached_gzip_flag"), |
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120 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
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121 ngx_conf_set_num_slot, |
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122 NGX_HTTP_LOC_CONF_OFFSET, |
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123 offsetof(ngx_http_memcached_loc_conf_t, gzip_flag), |
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124 NULL }, |
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125 |
581 | 126 ngx_null_command |
127 }; | |
128 | |
129 | |
667 | 130 static ngx_http_module_t ngx_http_memcached_module_ctx = { |
581 | 131 NULL, /* preconfiguration */ |
132 NULL, /* postconfiguration */ | |
133 | |
134 NULL, /* create main configuration */ | |
135 NULL, /* init main configuration */ | |
136 | |
137 NULL, /* create server configuration */ | |
138 NULL, /* merge server configuration */ | |
139 | |
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140 ngx_http_memcached_create_loc_conf, /* create location configuration */ |
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141 ngx_http_memcached_merge_loc_conf /* merge location configuration */ |
581 | 142 }; |
143 | |
144 | |
145 ngx_module_t ngx_http_memcached_module = { | |
146 NGX_MODULE_V1, | |
147 &ngx_http_memcached_module_ctx, /* module context */ | |
148 ngx_http_memcached_commands, /* module directives */ | |
149 NGX_HTTP_MODULE, /* module type */ | |
150 NULL, /* init master */ | |
151 NULL, /* init module */ | |
152 NULL, /* init process */ | |
153 NULL, /* init thread */ | |
154 NULL, /* exit thread */ | |
155 NULL, /* exit process */ | |
156 NULL, /* exit master */ | |
157 NGX_MODULE_V1_PADDING | |
158 }; | |
159 | |
160 | |
1076 | 161 static ngx_str_t ngx_http_memcached_key = ngx_string("memcached_key"); |
162 | |
163 | |
581 | 164 #define NGX_HTTP_MEMCACHED_END (sizeof(ngx_http_memcached_end) - 1) |
165 static u_char ngx_http_memcached_end[] = CRLF "END" CRLF; | |
166 | |
167 | |
168 static ngx_int_t | |
169 ngx_http_memcached_handler(ngx_http_request_t *r) | |
170 { | |
171 ngx_int_t rc; | |
172 ngx_http_upstream_t *u; | |
173 ngx_http_memcached_ctx_t *ctx; | |
174 ngx_http_memcached_loc_conf_t *mlcf; | |
175 | |
645 | 176 if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) { |
581 | 177 return NGX_HTTP_NOT_ALLOWED; |
178 } | |
179 | |
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180 rc = ngx_http_discard_request_body(r); |
581 | 181 |
1374 | 182 if (rc != NGX_OK) { |
581 | 183 return rc; |
184 } | |
185 | |
186 if (ngx_http_set_content_type(r) != NGX_OK) { | |
187 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
188 } | |
189 | |
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190 if (ngx_http_upstream_create(r) != NGX_OK) { |
581 | 191 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
192 } | |
193 | |
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194 u = r->upstream; |
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195 |
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196 ngx_str_set(&u->schema, "memcached://"); |
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197 u->output.tag = (ngx_buf_tag_t) &ngx_http_memcached_module; |
581 | 198 |
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199 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_memcached_module); |
581 | 200 |
201 u->conf = &mlcf->upstream; | |
202 | |
203 u->create_request = ngx_http_memcached_create_request; | |
204 u->reinit_request = ngx_http_memcached_reinit_request; | |
205 u->process_header = ngx_http_memcached_process_header; | |
206 u->abort_request = ngx_http_memcached_abort_request; | |
207 u->finalize_request = ngx_http_memcached_finalize_request; | |
208 | |
209 ctx = ngx_palloc(r->pool, sizeof(ngx_http_memcached_ctx_t)); | |
210 if (ctx == NULL) { | |
211 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
212 } | |
213 | |
214 ctx->request = r; | |
215 | |
597 | 216 ngx_http_set_ctx(r, ctx, ngx_http_memcached_module); |
217 | |
581 | 218 u->input_filter_init = ngx_http_memcached_filter_init; |
219 u->input_filter = ngx_http_memcached_filter; | |
220 u->input_filter_ctx = ctx; | |
221 | |
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222 r->main->count++; |
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223 |
581 | 224 ngx_http_upstream_init(r); |
225 | |
226 return NGX_DONE; | |
227 } | |
228 | |
229 | |
230 static ngx_int_t | |
231 ngx_http_memcached_create_request(ngx_http_request_t *r) | |
232 { | |
1076 | 233 size_t len; |
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234 uintptr_t escape; |
1076 | 235 ngx_buf_t *b; |
236 ngx_chain_t *cl; | |
237 ngx_http_memcached_ctx_t *ctx; | |
238 ngx_http_variable_value_t *vv; | |
239 ngx_http_memcached_loc_conf_t *mlcf; | |
240 | |
241 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_memcached_module); | |
581 | 242 |
1076 | 243 vv = ngx_http_get_indexed_variable(r, mlcf->index); |
244 | |
245 if (vv == NULL || vv->not_found || vv->len == 0) { | |
246 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
247 "the \"$memcached_key\" variable is not set"); | |
248 return NGX_ERROR; | |
249 } | |
250 | |
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251 escape = 2 * ngx_escape_uri(NULL, vv->data, vv->len, NGX_ESCAPE_MEMCACHED); |
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252 |
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253 len = sizeof("get ") - 1 + vv->len + escape + sizeof(CRLF) - 1; |
581 | 254 |
255 b = ngx_create_temp_buf(r->pool, len); | |
256 if (b == NULL) { | |
257 return NGX_ERROR; | |
258 } | |
259 | |
260 cl = ngx_alloc_chain_link(r->pool); | |
261 if (cl == NULL) { | |
262 return NGX_ERROR; | |
263 } | |
264 | |
265 cl->buf = b; | |
266 cl->next = NULL; | |
267 | |
268 r->upstream->request_bufs = cl; | |
269 | |
270 *b->last++ = 'g'; *b->last++ = 'e'; *b->last++ = 't'; *b->last++ = ' '; | |
271 | |
597 | 272 ctx = ngx_http_get_module_ctx(r, ngx_http_memcached_module); |
273 | |
274 ctx->key.data = b->last; | |
275 | |
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276 if (escape == 0) { |
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277 b->last = ngx_copy(b->last, vv->data, vv->len); |
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278 |
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279 } else { |
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280 b->last = (u_char *) ngx_escape_uri(b->last, vv->data, vv->len, |
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281 NGX_ESCAPE_MEMCACHED); |
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282 } |
581 | 283 |
597 | 284 ctx->key.len = b->last - ctx->key.data; |
581 | 285 |
286 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
597 | 287 "http memcached request: \"%V\"", &ctx->key); |
581 | 288 |
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289 *b->last++ = CR; *b->last++ = LF; |
581 | 290 |
291 return NGX_OK; | |
292 } | |
293 | |
294 | |
295 static ngx_int_t | |
296 ngx_http_memcached_reinit_request(ngx_http_request_t *r) | |
297 { | |
298 return NGX_OK; | |
299 } | |
300 | |
301 | |
302 static ngx_int_t | |
303 ngx_http_memcached_process_header(ngx_http_request_t *r) | |
304 { | |
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305 u_char *p, *start; |
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306 ngx_str_t line; |
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4499
diff
changeset
|
307 ngx_uint_t flags; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
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parents:
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diff
changeset
|
308 ngx_table_elt_t *h; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
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parents:
4499
diff
changeset
|
309 ngx_http_upstream_t *u; |
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Memcached: memcached_gzip_flag directive.
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parents:
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diff
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|
310 ngx_http_memcached_ctx_t *ctx; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
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4499
diff
changeset
|
311 ngx_http_memcached_loc_conf_t *mlcf; |
581 | 312 |
313 u = r->upstream; | |
314 | |
315 for (p = u->buffer.pos; p < u->buffer.last; p++) { | |
316 if (*p == LF) { | |
317 goto found; | |
318 } | |
319 } | |
320 | |
321 return NGX_AGAIN; | |
322 | |
323 found: | |
324 | |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
325 line.data = u->buffer.pos; |
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
326 line.len = p - u->buffer.pos; |
581 | 327 |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
328 if (line.len == 0 || *(p - 1) != CR) { |
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
329 goto no_valid; |
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
330 } |
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
331 |
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
332 *p = '\0'; |
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
333 line.len--; |
581 | 334 |
335 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
336 "memcached: \"%V\"", &line); | |
337 | |
338 p = u->buffer.pos; | |
339 | |
597 | 340 ctx = ngx_http_get_module_ctx(r, ngx_http_memcached_module); |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
341 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_memcached_module); |
597 | 342 |
581 | 343 if (ngx_strncmp(p, "VALUE ", sizeof("VALUE ") - 1) == 0) { |
344 | |
345 p += sizeof("VALUE ") - 1; | |
346 | |
597 | 347 if (ngx_strncmp(p, ctx->key.data, ctx->key.len) != 0) { |
581 | 348 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
349 "memcached sent invalid key in response \"%V\" " | |
350 "for key \"%V\"", | |
597 | 351 &line, &ctx->key); |
581 | 352 |
353 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
354 } | |
355 | |
597 | 356 p += ctx->key.len; |
581 | 357 |
358 if (*p++ != ' ') { | |
359 goto no_valid; | |
360 } | |
361 | |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
362 /* flags */ |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
363 |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
364 start = p; |
581 | 365 |
366 while (*p) { | |
367 if (*p++ == ' ') { | |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
368 if (mlcf->gzip_flag) { |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
369 goto flags; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
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parents:
4499
diff
changeset
|
370 } else { |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
371 goto length; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
372 } |
581 | 373 } |
374 } | |
375 | |
376 goto no_valid; | |
377 | |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
378 flags: |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
379 |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
380 flags = ngx_atoi(start, p - start - 1); |
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 if (flags == (ngx_uint_t) NGX_ERROR) { |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
383 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
384 "memcached sent invalid flags in response \"%V\" " |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
385 "for key \"%V\"", |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
386 &line, &ctx->key); |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
387 return NGX_HTTP_UPSTREAM_INVALID_HEADER; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
388 } |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
389 |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
390 if (flags & mlcf->gzip_flag) { |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
391 h = ngx_list_push(&r->headers_out.headers); |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
392 if (h == NULL) { |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
393 return NGX_ERROR; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
394 } |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
395 |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
396 h->hash = 1; |
5765
d80543940f9a
Style: use ngx_str_set().
Tatsuhiko Kubo <cubicdaiya@gmail.com>
parents:
5359
diff
changeset
|
397 ngx_str_set(&h->key, "Content-Encoding"); |
d80543940f9a
Style: use ngx_str_set().
Tatsuhiko Kubo <cubicdaiya@gmail.com>
parents:
5359
diff
changeset
|
398 ngx_str_set(&h->value, "gzip"); |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
399 r->headers_out.content_encoding = h; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
400 } |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
401 |
581 | 402 length: |
403 | |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
404 start = p; |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
405 p = line.data + line.len; |
581 | 406 |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
407 u->headers_in.content_length_n = ngx_atoof(start, p - start); |
5801
ab48149b77a6
Style: use specified macro instead of magic-number.
Tatsuhiko Kubo <cubicdaiya@gmail.com>
parents:
5765
diff
changeset
|
408 if (u->headers_in.content_length_n == NGX_ERROR) { |
581 | 409 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
410 "memcached sent invalid length in response \"%V\" " | |
411 "for key \"%V\"", | |
597 | 412 &line, &ctx->key); |
581 | 413 return NGX_HTTP_UPSTREAM_INVALID_HEADER; |
414 } | |
415 | |
416 u->headers_in.status_n = 200; | |
1567
31d4278d51c0
memcached did not set $upstream_response_time
Igor Sysoev <igor@sysoev.ru>
parents:
1554
diff
changeset
|
417 u->state->status = 200; |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
418 u->buffer.pos = p + sizeof(CRLF) - 1; |
581 | 419 |
420 return NGX_OK; | |
421 } | |
422 | |
423 if (ngx_strcmp(p, "END\x0d") == 0) { | |
424 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0, | |
597 | 425 "key: \"%V\" was not found by memcached", &ctx->key); |
581 | 426 |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
427 u->headers_in.content_length_n = 0; |
581 | 428 u->headers_in.status_n = 404; |
1567
31d4278d51c0
memcached did not set $upstream_response_time
Igor Sysoev <igor@sysoev.ru>
parents:
1554
diff
changeset
|
429 u->state->status = 404; |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
430 u->buffer.pos = p + sizeof("END" CRLF) - 1; |
4121
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
431 u->keepalive = 1; |
581 | 432 |
433 return NGX_OK; | |
434 } | |
435 | |
436 no_valid: | |
437 | |
438 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
439 "memcached sent invalid response: \"%V\"", &line); | |
440 | |
441 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
442 } | |
443 | |
444 | |
445 static ngx_int_t | |
446 ngx_http_memcached_filter_init(void *data) | |
447 { | |
448 ngx_http_memcached_ctx_t *ctx = data; | |
449 | |
450 ngx_http_upstream_t *u; | |
451 | |
452 u = ctx->request->upstream; | |
453 | |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
454 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
|
455 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
|
456 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
|
457 |
f538a67c9f77
Upstream: u->length now defaults to -1 (API change).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5226
diff
changeset
|
458 } else { |
f538a67c9f77
Upstream: u->length now defaults to -1 (API change).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5226
diff
changeset
|
459 u->length = 0; |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
460 } |
581 | 461 |
462 return NGX_OK; | |
463 } | |
464 | |
465 | |
466 static ngx_int_t | |
467 ngx_http_memcached_filter(void *data, ssize_t bytes) | |
468 { | |
469 ngx_http_memcached_ctx_t *ctx = data; | |
470 | |
471 u_char *last; | |
472 ngx_buf_t *b; | |
473 ngx_chain_t *cl, **ll; | |
474 ngx_http_upstream_t *u; | |
475 | |
476 u = ctx->request->upstream; | |
477 b = &u->buffer; | |
478 | |
4118
dbddec65fdab
Upstream: r->upstream->length type change to off_t.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4117
diff
changeset
|
479 if (u->length == (ssize_t) ctx->rest) { |
581 | 480 |
481 if (ngx_strncmp(b->last, | |
1548 | 482 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
|
483 bytes) |
1548 | 484 != 0) |
581 | 485 { |
486 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
487 "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
|
488 |
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
489 u->length = 0; |
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
490 ctx->rest = 0; |
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
491 |
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
492 return NGX_OK; |
581 | 493 } |
494 | |
3487
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
495 u->length -= bytes; |
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
496 ctx->rest -= bytes; |
581 | 497 |
4121
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
498 if (u->length == 0) { |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
499 u->keepalive = 1; |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
500 } |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
501 |
581 | 502 return NGX_OK; |
503 } | |
504 | |
505 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
506 ll = &cl->next; | |
507 } | |
508 | |
509 cl = ngx_chain_get_free_buf(ctx->request->pool, &u->free_bufs); | |
510 if (cl == NULL) { | |
511 return NGX_ERROR; | |
512 } | |
513 | |
514 cl->buf->flush = 1; | |
515 cl->buf->memory = 1; | |
516 | |
517 *ll = cl; | |
518 | |
1554
30fcc8478d85
two commits those go together by mistake
Igor Sysoev <igor@sysoev.ru>
parents:
1548
diff
changeset
|
519 last = b->last; |
30fcc8478d85
two commits those go together by mistake
Igor Sysoev <igor@sysoev.ru>
parents:
1548
diff
changeset
|
520 cl->buf->pos = last; |
581 | 521 b->last += bytes; |
522 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
|
523 cl->buf->tag = u->output.tag; |
581 | 524 |
525 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0, | |
6480 | 526 "memcached filter bytes:%z size:%z length:%O rest:%z", |
581 | 527 bytes, b->last - b->pos, u->length, ctx->rest); |
528 | |
1554
30fcc8478d85
two commits those go together by mistake
Igor Sysoev <igor@sysoev.ru>
parents:
1548
diff
changeset
|
529 if (bytes <= (ssize_t) (u->length - NGX_HTTP_MEMCACHED_END)) { |
581 | 530 u->length -= bytes; |
531 return NGX_OK; | |
532 } | |
533 | |
5359
2fda9065d0f4
Win32: Borland C compatibility fixes.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5300
diff
changeset
|
534 last += (size_t) (u->length - NGX_HTTP_MEMCACHED_END); |
581 | 535 |
536 if (ngx_strncmp(last, ngx_http_memcached_end, b->last - last) != 0) { | |
537 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
538 "memcached sent invalid trailer"); | |
4121
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
539 |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
540 b->last = last; |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
541 cl->buf->last = last; |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
542 u->length = 0; |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
543 ctx->rest = 0; |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
544 |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
545 return NGX_OK; |
581 | 546 } |
547 | |
1554
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two commits those go together by mistake
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548 ctx->rest -= b->last - last; |
581 | 549 b->last = last; |
550 cl->buf->last = last; | |
551 u->length = ctx->rest; | |
552 | |
4121
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Keepalive support in memcached.
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553 if (u->length == 0) { |
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Keepalive support in memcached.
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parents:
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554 u->keepalive = 1; |
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Keepalive support in memcached.
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555 } |
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Keepalive support in memcached.
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556 |
581 | 557 return NGX_OK; |
558 } | |
559 | |
560 | |
561 static void | |
562 ngx_http_memcached_abort_request(ngx_http_request_t *r) | |
563 { | |
564 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
565 "abort http memcached request"); | |
566 return; | |
567 } | |
568 | |
569 | |
570 static void | |
571 ngx_http_memcached_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
572 { | |
573 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
574 "finalize http memcached request"); | |
575 return; | |
576 } | |
577 | |
578 | |
579 static void * | |
580 ngx_http_memcached_create_loc_conf(ngx_conf_t *cf) | |
581 { | |
582 ngx_http_memcached_loc_conf_t *conf; | |
583 | |
584 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_memcached_loc_conf_t)); | |
585 if (conf == NULL) { | |
2912
c7d57b539248
return NULL instead of NGX_CONF_ERROR on a create conf failure
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2392
diff
changeset
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586 return NULL; |
581 | 587 } |
588 | |
589 /* | |
590 * set by ngx_pcalloc(): | |
591 * | |
592 * conf->upstream.bufs.num = 0; | |
593 * conf->upstream.next_upstream = 0; | |
594 * conf->upstream.temp_path = NULL; | |
595 * conf->upstream.uri = { 0, NULL }; | |
596 * conf->upstream.location = NULL; | |
597 */ | |
598 | |
5008
fd84344f1df7
Fixed and improved the "*_bind" directives of proxying modules.
Ruslan Ermilov <ru@nginx.com>
parents:
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changeset
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599 conf->upstream.local = NGX_CONF_UNSET_PTR; |
5832
d09b689911ac
Upstream: limited next_upstream time and tries (ticket #544).
Roman Arutyunyan <arut@nginx.com>
parents:
5801
diff
changeset
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600 conf->upstream.next_upstream_tries = NGX_CONF_UNSET_UINT; |
581 | 601 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; |
602 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
603 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
5832
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Roman Arutyunyan <arut@nginx.com>
parents:
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604 conf->upstream.next_upstream_timeout = NGX_CONF_UNSET_MSEC; |
581 | 605 |
606 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
607 | |
884 | 608 /* the hardcoded values */ |
581 | 609 conf->upstream.cyclic_temp_file = 0; |
629 | 610 conf->upstream.buffering = 0; |
611 conf->upstream.ignore_client_abort = 0; | |
581 | 612 conf->upstream.send_lowat = 0; |
613 conf->upstream.bufs.num = 0; | |
614 conf->upstream.busy_buffers_size = 0; | |
615 conf->upstream.max_temp_file_size = 0; | |
616 conf->upstream.temp_file_write_size = 0; | |
657 | 617 conf->upstream.intercept_errors = 1; |
675 | 618 conf->upstream.intercept_404 = 1; |
581 | 619 conf->upstream.pass_request_headers = 0; |
620 conf->upstream.pass_request_body = 0; | |
6122
85f00678e54a
Memcached: enabled ranges.
Martin Mlynář <nexus@smoula.net>
parents:
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changeset
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621 conf->upstream.force_ranges = 1; |
581 | 622 |
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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changeset
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623 conf->index = NGX_CONF_UNSET; |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
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changeset
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624 conf->gzip_flag = NGX_CONF_UNSET_UINT; |
1787
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inherit $memached_key index and memcached_pass upstream inside "if" block
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625 |
581 | 626 return conf; |
627 } | |
628 | |
629 | |
630 static char * | |
631 ngx_http_memcached_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
632 { | |
633 ngx_http_memcached_loc_conf_t *prev = parent; | |
634 ngx_http_memcached_loc_conf_t *conf = child; | |
635 | |
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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636 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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637 prev->upstream.local, NULL); |
fd84344f1df7
Fixed and improved the "*_bind" directives of proxying modules.
Ruslan Ermilov <ru@nginx.com>
parents:
4835
diff
changeset
|
638 |
5832
d09b689911ac
Upstream: limited next_upstream time and tries (ticket #544).
Roman Arutyunyan <arut@nginx.com>
parents:
5801
diff
changeset
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639 ngx_conf_merge_uint_value(conf->upstream.next_upstream_tries, |
d09b689911ac
Upstream: limited next_upstream time and tries (ticket #544).
Roman Arutyunyan <arut@nginx.com>
parents:
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changeset
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640 prev->upstream.next_upstream_tries, 0); |
d09b689911ac
Upstream: limited next_upstream time and tries (ticket #544).
Roman Arutyunyan <arut@nginx.com>
parents:
5801
diff
changeset
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641 |
581 | 642 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, |
643 prev->upstream.connect_timeout, 60000); | |
644 | |
645 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
646 prev->upstream.send_timeout, 60000); | |
647 | |
648 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
649 prev->upstream.read_timeout, 60000); | |
650 | |
5832
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Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
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651 ngx_conf_merge_msec_value(conf->upstream.next_upstream_timeout, |
d09b689911ac
Upstream: limited next_upstream time and tries (ticket #544).
Roman Arutyunyan <arut@nginx.com>
parents:
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diff
changeset
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652 prev->upstream.next_upstream_timeout, 0); |
d09b689911ac
Upstream: limited next_upstream time and tries (ticket #544).
Roman Arutyunyan <arut@nginx.com>
parents:
5801
diff
changeset
|
653 |
581 | 654 ngx_conf_merge_size_value(conf->upstream.buffer_size, |
655 prev->upstream.buffer_size, | |
656 (size_t) ngx_pagesize); | |
657 | |
658 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
659 prev->upstream.next_upstream, | |
660 (NGX_CONF_BITMASK_SET | |
661 |NGX_HTTP_UPSTREAM_FT_ERROR | |
662 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
663 | |
665 | 664 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { |
665 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
666 |NGX_HTTP_UPSTREAM_FT_OFF; | |
667 } | |
668 | |
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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669 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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670 conf->upstream.upstream = prev->upstream.upstream; |
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parents:
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671 } |
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inherit $memached_key index and memcached_pass upstream inside "if" block
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parents:
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672 |
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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673 if (conf->index == NGX_CONF_UNSET) { |
a37fe5ceacc4
inherit $memached_key index and memcached_pass upstream inside "if" block
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parents:
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674 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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675 } |
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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676 |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
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677 ngx_conf_merge_uint_value(conf->gzip_flag, prev->gzip_flag, 0); |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
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678 |
581 | 679 return NGX_CONF_OK; |
680 } | |
681 | |
682 | |
683 static char * | |
684 ngx_http_memcached_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
685 { | |
2392 | 686 ngx_http_memcached_loc_conf_t *mlcf = conf; |
581 | 687 |
688 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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689 ngx_url_t u; |
581 | 690 ngx_http_core_loc_conf_t *clcf; |
691 | |
2392 | 692 if (mlcf->upstream.upstream) { |
581 | 693 return "is duplicate"; |
694 } | |
695 | |
696 value = cf->args->elts; | |
697 | |
807
3095bf59059b
now the "memcached_pass" directive uses ngx_parse_url()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
698 ngx_memzero(&u, sizeof(ngx_url_t)); |
581 | 699 |
807
3095bf59059b
now the "memcached_pass" directive uses ngx_parse_url()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
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700 u.url = value[1]; |
884 | 701 u.no_resolve = 1; |
815
b630109560b7
style fix: remove trailing spaces
Igor Sysoev <igor@sysoev.ru>
parents:
807
diff
changeset
|
702 |
2392 | 703 mlcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); |
704 if (mlcf->upstream.upstream == NULL) { | |
884 | 705 return NGX_CONF_ERROR; |
581 | 706 } |
707 | |
708 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
709 | |
710 clcf->handler = ngx_http_memcached_handler; | |
711 | |
712 if (clcf->name.data[clcf->name.len - 1] == '/') { | |
713 clcf->auto_redirect = 1; | |
714 } | |
715 | |
2392 | 716 mlcf->index = ngx_http_get_variable_index(cf, &ngx_http_memcached_key); |
1076 | 717 |
2392 | 718 if (mlcf->index == NGX_ERROR) { |
1076 | 719 return NGX_CONF_ERROR; |
720 } | |
721 | |
581 | 722 return NGX_CONF_OK; |
723 } |