Mercurial > hg > nginx
annotate src/http/modules/ngx_http_memcached_module.c @ 8383:7ea34e13937f quic
Address validation using Retry packets.
The behaviour is toggled with the new directive "quic_retry on|off".
QUIC token construction is made suitable for issuing with NEW_TOKEN.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Thu, 14 May 2020 15:47:18 +0300 |
parents | 8b68d50090e4 |
children | 7731c710796f |
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_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 |
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70 { ngx_string("memcached_socket_keepalive"), |
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71 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
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72 ngx_conf_set_flag_slot, |
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73 NGX_HTTP_LOC_CONF_OFFSET, |
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74 offsetof(ngx_http_memcached_loc_conf_t, upstream.socket_keepalive), |
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75 NULL }, |
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76 |
581 | 77 { ngx_string("memcached_connect_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.connect_timeout), | |
82 NULL }, | |
83 | |
84 { ngx_string("memcached_send_timeout"), | |
85 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
86 ngx_conf_set_msec_slot, | |
87 NGX_HTTP_LOC_CONF_OFFSET, | |
88 offsetof(ngx_http_memcached_loc_conf_t, upstream.send_timeout), | |
89 NULL }, | |
90 | |
91 { ngx_string("memcached_buffer_size"), | |
92 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
93 ngx_conf_set_size_slot, | |
94 NGX_HTTP_LOC_CONF_OFFSET, | |
95 offsetof(ngx_http_memcached_loc_conf_t, upstream.buffer_size), | |
96 NULL }, | |
97 | |
98 { ngx_string("memcached_read_timeout"), | |
99 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
100 ngx_conf_set_msec_slot, | |
101 NGX_HTTP_LOC_CONF_OFFSET, | |
102 offsetof(ngx_http_memcached_loc_conf_t, upstream.read_timeout), | |
103 NULL }, | |
104 | |
105 { ngx_string("memcached_next_upstream"), | |
106 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
107 ngx_conf_set_bitmask_slot, | |
108 NGX_HTTP_LOC_CONF_OFFSET, | |
109 offsetof(ngx_http_memcached_loc_conf_t, upstream.next_upstream), | |
110 &ngx_http_memcached_next_upstream_masks }, | |
111 | |
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112 { ngx_string("memcached_next_upstream_tries"), |
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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_num_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_tries), |
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117 NULL }, |
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118 |
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119 { ngx_string("memcached_next_upstream_timeout"), |
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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_msec_slot, |
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122 NGX_HTTP_LOC_CONF_OFFSET, |
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123 offsetof(ngx_http_memcached_loc_conf_t, upstream.next_upstream_timeout), |
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124 NULL }, |
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125 |
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126 { ngx_string("memcached_gzip_flag"), |
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127 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
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128 ngx_conf_set_num_slot, |
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129 NGX_HTTP_LOC_CONF_OFFSET, |
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130 offsetof(ngx_http_memcached_loc_conf_t, gzip_flag), |
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131 NULL }, |
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132 |
581 | 133 ngx_null_command |
134 }; | |
135 | |
136 | |
667 | 137 static ngx_http_module_t ngx_http_memcached_module_ctx = { |
581 | 138 NULL, /* preconfiguration */ |
139 NULL, /* postconfiguration */ | |
140 | |
141 NULL, /* create main configuration */ | |
142 NULL, /* init main configuration */ | |
143 | |
144 NULL, /* create server configuration */ | |
145 NULL, /* merge server configuration */ | |
146 | |
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147 ngx_http_memcached_create_loc_conf, /* create location configuration */ |
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148 ngx_http_memcached_merge_loc_conf /* merge location configuration */ |
581 | 149 }; |
150 | |
151 | |
152 ngx_module_t ngx_http_memcached_module = { | |
153 NGX_MODULE_V1, | |
154 &ngx_http_memcached_module_ctx, /* module context */ | |
155 ngx_http_memcached_commands, /* module directives */ | |
156 NGX_HTTP_MODULE, /* module type */ | |
157 NULL, /* init master */ | |
158 NULL, /* init module */ | |
159 NULL, /* init process */ | |
160 NULL, /* init thread */ | |
161 NULL, /* exit thread */ | |
162 NULL, /* exit process */ | |
163 NULL, /* exit master */ | |
164 NGX_MODULE_V1_PADDING | |
165 }; | |
166 | |
167 | |
1076 | 168 static ngx_str_t ngx_http_memcached_key = ngx_string("memcached_key"); |
169 | |
170 | |
581 | 171 #define NGX_HTTP_MEMCACHED_END (sizeof(ngx_http_memcached_end) - 1) |
172 static u_char ngx_http_memcached_end[] = CRLF "END" CRLF; | |
173 | |
174 | |
175 static ngx_int_t | |
176 ngx_http_memcached_handler(ngx_http_request_t *r) | |
177 { | |
178 ngx_int_t rc; | |
179 ngx_http_upstream_t *u; | |
180 ngx_http_memcached_ctx_t *ctx; | |
181 ngx_http_memcached_loc_conf_t *mlcf; | |
182 | |
645 | 183 if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) { |
581 | 184 return NGX_HTTP_NOT_ALLOWED; |
185 } | |
186 | |
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187 rc = ngx_http_discard_request_body(r); |
581 | 188 |
1374 | 189 if (rc != NGX_OK) { |
581 | 190 return rc; |
191 } | |
192 | |
193 if (ngx_http_set_content_type(r) != NGX_OK) { | |
194 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
195 } | |
196 | |
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197 if (ngx_http_upstream_create(r) != NGX_OK) { |
581 | 198 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
199 } | |
200 | |
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201 u = r->upstream; |
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202 |
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203 ngx_str_set(&u->schema, "memcached://"); |
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204 u->output.tag = (ngx_buf_tag_t) &ngx_http_memcached_module; |
581 | 205 |
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206 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_memcached_module); |
581 | 207 |
208 u->conf = &mlcf->upstream; | |
209 | |
210 u->create_request = ngx_http_memcached_create_request; | |
211 u->reinit_request = ngx_http_memcached_reinit_request; | |
212 u->process_header = ngx_http_memcached_process_header; | |
213 u->abort_request = ngx_http_memcached_abort_request; | |
214 u->finalize_request = ngx_http_memcached_finalize_request; | |
215 | |
216 ctx = ngx_palloc(r->pool, sizeof(ngx_http_memcached_ctx_t)); | |
217 if (ctx == NULL) { | |
218 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
219 } | |
220 | |
221 ctx->request = r; | |
222 | |
597 | 223 ngx_http_set_ctx(r, ctx, ngx_http_memcached_module); |
224 | |
581 | 225 u->input_filter_init = ngx_http_memcached_filter_init; |
226 u->input_filter = ngx_http_memcached_filter; | |
227 u->input_filter_ctx = ctx; | |
228 | |
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229 r->main->count++; |
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230 |
581 | 231 ngx_http_upstream_init(r); |
232 | |
233 return NGX_DONE; | |
234 } | |
235 | |
236 | |
237 static ngx_int_t | |
238 ngx_http_memcached_create_request(ngx_http_request_t *r) | |
239 { | |
1076 | 240 size_t len; |
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241 uintptr_t escape; |
1076 | 242 ngx_buf_t *b; |
243 ngx_chain_t *cl; | |
244 ngx_http_memcached_ctx_t *ctx; | |
245 ngx_http_variable_value_t *vv; | |
246 ngx_http_memcached_loc_conf_t *mlcf; | |
247 | |
248 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_memcached_module); | |
581 | 249 |
1076 | 250 vv = ngx_http_get_indexed_variable(r, mlcf->index); |
251 | |
252 if (vv == NULL || vv->not_found || vv->len == 0) { | |
253 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
254 "the \"$memcached_key\" variable is not set"); | |
255 return NGX_ERROR; | |
256 } | |
257 | |
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258 escape = 2 * ngx_escape_uri(NULL, vv->data, vv->len, NGX_ESCAPE_MEMCACHED); |
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259 |
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260 len = sizeof("get ") - 1 + vv->len + escape + sizeof(CRLF) - 1; |
581 | 261 |
262 b = ngx_create_temp_buf(r->pool, len); | |
263 if (b == NULL) { | |
264 return NGX_ERROR; | |
265 } | |
266 | |
267 cl = ngx_alloc_chain_link(r->pool); | |
268 if (cl == NULL) { | |
269 return NGX_ERROR; | |
270 } | |
271 | |
272 cl->buf = b; | |
273 cl->next = NULL; | |
274 | |
275 r->upstream->request_bufs = cl; | |
276 | |
277 *b->last++ = 'g'; *b->last++ = 'e'; *b->last++ = 't'; *b->last++ = ' '; | |
278 | |
597 | 279 ctx = ngx_http_get_module_ctx(r, ngx_http_memcached_module); |
280 | |
281 ctx->key.data = b->last; | |
282 | |
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283 if (escape == 0) { |
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284 b->last = ngx_copy(b->last, vv->data, vv->len); |
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285 |
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286 } else { |
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287 b->last = (u_char *) ngx_escape_uri(b->last, vv->data, vv->len, |
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288 NGX_ESCAPE_MEMCACHED); |
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289 } |
581 | 290 |
597 | 291 ctx->key.len = b->last - ctx->key.data; |
581 | 292 |
293 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
597 | 294 "http memcached request: \"%V\"", &ctx->key); |
581 | 295 |
1088
2d8e72584534
eliminate the useless space symbol
Igor Sysoev <igor@sysoev.ru>
parents:
1076
diff
changeset
|
296 *b->last++ = CR; *b->last++ = LF; |
581 | 297 |
298 return NGX_OK; | |
299 } | |
300 | |
301 | |
302 static ngx_int_t | |
303 ngx_http_memcached_reinit_request(ngx_http_request_t *r) | |
304 { | |
305 return NGX_OK; | |
306 } | |
307 | |
308 | |
309 static ngx_int_t | |
310 ngx_http_memcached_process_header(ngx_http_request_t *r) | |
311 { | |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
312 u_char *p, *start; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
313 ngx_str_t line; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
314 ngx_uint_t flags; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
315 ngx_table_elt_t *h; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
316 ngx_http_upstream_t *u; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
317 ngx_http_memcached_ctx_t *ctx; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
318 ngx_http_memcached_loc_conf_t *mlcf; |
581 | 319 |
320 u = r->upstream; | |
321 | |
322 for (p = u->buffer.pos; p < u->buffer.last; p++) { | |
323 if (*p == LF) { | |
324 goto found; | |
325 } | |
326 } | |
327 | |
328 return NGX_AGAIN; | |
329 | |
330 found: | |
331 | |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
332 line.data = u->buffer.pos; |
a30ea5c6451d
Memcached: stricten header validation.
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parents:
5008
diff
changeset
|
333 line.len = p - u->buffer.pos; |
581 | 334 |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
335 if (line.len == 0 || *(p - 1) != CR) { |
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
336 goto no_valid; |
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
337 } |
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
338 |
a30ea5c6451d
Memcached: stricten header validation.
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5008
diff
changeset
|
339 *p = '\0'; |
a30ea5c6451d
Memcached: stricten header validation.
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parents:
5008
diff
changeset
|
340 line.len--; |
581 | 341 |
342 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
343 "memcached: \"%V\"", &line); | |
344 | |
345 p = u->buffer.pos; | |
346 | |
597 | 347 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
|
348 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_memcached_module); |
597 | 349 |
581 | 350 if (ngx_strncmp(p, "VALUE ", sizeof("VALUE ") - 1) == 0) { |
351 | |
352 p += sizeof("VALUE ") - 1; | |
353 | |
597 | 354 if (ngx_strncmp(p, ctx->key.data, ctx->key.len) != 0) { |
581 | 355 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
356 "memcached sent invalid key in response \"%V\" " | |
357 "for key \"%V\"", | |
597 | 358 &line, &ctx->key); |
581 | 359 |
360 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
361 } | |
362 | |
597 | 363 p += ctx->key.len; |
581 | 364 |
365 if (*p++ != ' ') { | |
366 goto no_valid; | |
367 } | |
368 | |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
369 /* flags */ |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
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parents:
4499
diff
changeset
|
370 |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
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parents:
4499
diff
changeset
|
371 start = p; |
581 | 372 |
373 while (*p) { | |
374 if (*p++ == ' ') { | |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
375 if (mlcf->gzip_flag) { |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
376 goto flags; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
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parents:
4499
diff
changeset
|
377 } else { |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
378 goto length; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
379 } |
581 | 380 } |
381 } | |
382 | |
383 goto no_valid; | |
384 | |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
385 flags: |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
386 |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
387 flags = ngx_atoi(start, p - start - 1); |
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 if (flags == (ngx_uint_t) NGX_ERROR) { |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
390 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
|
391 "memcached sent invalid flags in response \"%V\" " |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
392 "for key \"%V\"", |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
393 &line, &ctx->key); |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
394 return NGX_HTTP_UPSTREAM_INVALID_HEADER; |
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 |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
397 if (flags & mlcf->gzip_flag) { |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
398 h = ngx_list_push(&r->headers_out.headers); |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
399 if (h == NULL) { |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
400 return NGX_ERROR; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
401 } |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
402 |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
403 h->hash = 1; |
5765
d80543940f9a
Style: use ngx_str_set().
Tatsuhiko Kubo <cubicdaiya@gmail.com>
parents:
5359
diff
changeset
|
404 ngx_str_set(&h->key, "Content-Encoding"); |
d80543940f9a
Style: use ngx_str_set().
Tatsuhiko Kubo <cubicdaiya@gmail.com>
parents:
5359
diff
changeset
|
405 ngx_str_set(&h->value, "gzip"); |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
406 r->headers_out.content_encoding = h; |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
407 } |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
408 |
581 | 409 length: |
410 | |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
411 start = p; |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
412 p = line.data + line.len; |
581 | 413 |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
414 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
|
415 if (u->headers_in.content_length_n == NGX_ERROR) { |
581 | 416 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
417 "memcached sent invalid length in response \"%V\" " | |
418 "for key \"%V\"", | |
597 | 419 &line, &ctx->key); |
581 | 420 return NGX_HTTP_UPSTREAM_INVALID_HEADER; |
421 } | |
422 | |
423 u->headers_in.status_n = 200; | |
1567
31d4278d51c0
memcached did not set $upstream_response_time
Igor Sysoev <igor@sysoev.ru>
parents:
1554
diff
changeset
|
424 u->state->status = 200; |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
425 u->buffer.pos = p + sizeof(CRLF) - 1; |
581 | 426 |
427 return NGX_OK; | |
428 } | |
429 | |
430 if (ngx_strcmp(p, "END\x0d") == 0) { | |
431 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0, | |
597 | 432 "key: \"%V\" was not found by memcached", &ctx->key); |
581 | 433 |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
434 u->headers_in.content_length_n = 0; |
581 | 435 u->headers_in.status_n = 404; |
1567
31d4278d51c0
memcached did not set $upstream_response_time
Igor Sysoev <igor@sysoev.ru>
parents:
1554
diff
changeset
|
436 u->state->status = 404; |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
437 u->buffer.pos = p + sizeof("END" CRLF) - 1; |
4121
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
438 u->keepalive = 1; |
581 | 439 |
440 return NGX_OK; | |
441 } | |
442 | |
443 no_valid: | |
444 | |
445 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
446 "memcached sent invalid response: \"%V\"", &line); | |
447 | |
448 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
449 } | |
450 | |
451 | |
452 static ngx_int_t | |
453 ngx_http_memcached_filter_init(void *data) | |
454 { | |
455 ngx_http_memcached_ctx_t *ctx = data; | |
456 | |
457 ngx_http_upstream_t *u; | |
458 | |
459 u = ctx->request->upstream; | |
460 | |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
461 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
|
462 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
|
463 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
|
464 |
f538a67c9f77
Upstream: u->length now defaults to -1 (API change).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5226
diff
changeset
|
465 } else { |
f538a67c9f77
Upstream: u->length now defaults to -1 (API change).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5226
diff
changeset
|
466 u->length = 0; |
5226
a30ea5c6451d
Memcached: stricten header validation.
Ruslan Ermilov <ru@nginx.com>
parents:
5008
diff
changeset
|
467 } |
581 | 468 |
469 return NGX_OK; | |
470 } | |
471 | |
472 | |
473 static ngx_int_t | |
474 ngx_http_memcached_filter(void *data, ssize_t bytes) | |
475 { | |
476 ngx_http_memcached_ctx_t *ctx = data; | |
477 | |
478 u_char *last; | |
479 ngx_buf_t *b; | |
480 ngx_chain_t *cl, **ll; | |
481 ngx_http_upstream_t *u; | |
482 | |
483 u = ctx->request->upstream; | |
484 b = &u->buffer; | |
485 | |
4118
dbddec65fdab
Upstream: r->upstream->length type change to off_t.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4117
diff
changeset
|
486 if (u->length == (ssize_t) ctx->rest) { |
581 | 487 |
488 if (ngx_strncmp(b->last, | |
1548 | 489 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
|
490 bytes) |
1548 | 491 != 0) |
581 | 492 { |
493 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
494 "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
|
495 |
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
496 u->length = 0; |
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
497 ctx->rest = 0; |
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
498 |
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
499 return NGX_OK; |
581 | 500 } |
501 | |
3487
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
502 u->length -= bytes; |
5d2acf153153
revert partially r1555 and fix the error "memcached sent invalid trailer"
Igor Sysoev <igor@sysoev.ru>
parents:
3399
diff
changeset
|
503 ctx->rest -= bytes; |
581 | 504 |
4121
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
505 if (u->length == 0) { |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
506 u->keepalive = 1; |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
507 } |
16c60162c35b
Keepalive support in memcached.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4118
diff
changeset
|
508 |
581 | 509 return NGX_OK; |
510 } | |
511 | |
512 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
513 ll = &cl->next; | |
514 } | |
515 | |
516 cl = ngx_chain_get_free_buf(ctx->request->pool, &u->free_bufs); | |
517 if (cl == NULL) { | |
518 return NGX_ERROR; | |
519 } | |
520 | |
521 cl->buf->flush = 1; | |
522 cl->buf->memory = 1; | |
523 | |
524 *ll = cl; | |
525 | |
1554
30fcc8478d85
two commits those go together by mistake
Igor Sysoev <igor@sysoev.ru>
parents:
1548
diff
changeset
|
526 last = b->last; |
30fcc8478d85
two commits those go together by mistake
Igor Sysoev <igor@sysoev.ru>
parents:
1548
diff
changeset
|
527 cl->buf->pos = last; |
581 | 528 b->last += bytes; |
529 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
|
530 cl->buf->tag = u->output.tag; |
581 | 531 |
532 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0, | |
6480 | 533 "memcached filter bytes:%z size:%z length:%O rest:%z", |
581 | 534 bytes, b->last - b->pos, u->length, ctx->rest); |
535 | |
1554
30fcc8478d85
two commits those go together by mistake
Igor Sysoev <igor@sysoev.ru>
parents:
1548
diff
changeset
|
536 if (bytes <= (ssize_t) (u->length - NGX_HTTP_MEMCACHED_END)) { |
581 | 537 u->length -= bytes; |
538 return NGX_OK; | |
539 } | |
540 | |
5359
2fda9065d0f4
Win32: Borland C compatibility fixes.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5300
diff
changeset
|
541 last += (size_t) (u->length - NGX_HTTP_MEMCACHED_END); |
581 | 542 |
543 if (ngx_strncmp(last, ngx_http_memcached_end, b->last - last) != 0) { | |
544 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
545 "memcached sent invalid trailer"); | |
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Keepalive support in memcached.
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546 |
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547 b->last = last; |
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548 cl->buf->last = last; |
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Keepalive support in memcached.
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549 u->length = 0; |
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550 ctx->rest = 0; |
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551 |
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552 return NGX_OK; |
581 | 553 } |
554 | |
1554
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two commits those go together by mistake
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555 ctx->rest -= b->last - last; |
581 | 556 b->last = last; |
557 cl->buf->last = last; | |
558 u->length = ctx->rest; | |
559 | |
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560 if (u->length == 0) { |
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561 u->keepalive = 1; |
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562 } |
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563 |
581 | 564 return NGX_OK; |
565 } | |
566 | |
567 | |
568 static void | |
569 ngx_http_memcached_abort_request(ngx_http_request_t *r) | |
570 { | |
571 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
572 "abort http memcached request"); | |
573 return; | |
574 } | |
575 | |
576 | |
577 static void | |
578 ngx_http_memcached_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
579 { | |
580 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
581 "finalize http memcached request"); | |
582 return; | |
583 } | |
584 | |
585 | |
586 static void * | |
587 ngx_http_memcached_create_loc_conf(ngx_conf_t *cf) | |
588 { | |
589 ngx_http_memcached_loc_conf_t *conf; | |
590 | |
591 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_memcached_loc_conf_t)); | |
592 if (conf == NULL) { | |
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593 return NULL; |
581 | 594 } |
595 | |
596 /* | |
597 * set by ngx_pcalloc(): | |
598 * | |
599 * conf->upstream.bufs.num = 0; | |
600 * conf->upstream.next_upstream = 0; | |
601 * conf->upstream.temp_path = NULL; | |
602 */ | |
603 | |
5008
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Fixed and improved the "*_bind" directives of proxying modules.
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604 conf->upstream.local = NGX_CONF_UNSET_PTR; |
7371
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Upstream: proxy_socket_keepalive and friends.
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605 conf->upstream.socket_keepalive = NGX_CONF_UNSET; |
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606 conf->upstream.next_upstream_tries = NGX_CONF_UNSET_UINT; |
581 | 607 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; |
608 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
609 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
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610 conf->upstream.next_upstream_timeout = NGX_CONF_UNSET_MSEC; |
581 | 611 |
612 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
613 | |
884 | 614 /* the hardcoded values */ |
581 | 615 conf->upstream.cyclic_temp_file = 0; |
629 | 616 conf->upstream.buffering = 0; |
617 conf->upstream.ignore_client_abort = 0; | |
581 | 618 conf->upstream.send_lowat = 0; |
619 conf->upstream.bufs.num = 0; | |
620 conf->upstream.busy_buffers_size = 0; | |
621 conf->upstream.max_temp_file_size = 0; | |
622 conf->upstream.temp_file_write_size = 0; | |
657 | 623 conf->upstream.intercept_errors = 1; |
675 | 624 conf->upstream.intercept_404 = 1; |
581 | 625 conf->upstream.pass_request_headers = 0; |
626 conf->upstream.pass_request_body = 0; | |
6122
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627 conf->upstream.force_ranges = 1; |
581 | 628 |
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629 conf->index = NGX_CONF_UNSET; |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
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630 conf->gzip_flag = NGX_CONF_UNSET_UINT; |
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631 |
581 | 632 return conf; |
633 } | |
634 | |
635 | |
636 static char * | |
637 ngx_http_memcached_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
638 { | |
639 ngx_http_memcached_loc_conf_t *prev = parent; | |
640 ngx_http_memcached_loc_conf_t *conf = child; | |
641 | |
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parents:
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642 ngx_conf_merge_ptr_value(conf->upstream.local, |
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643 prev->upstream.local, NULL); |
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644 |
7371
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Upstream: proxy_socket_keepalive and friends.
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645 ngx_conf_merge_value(conf->upstream.socket_keepalive, |
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646 prev->upstream.socket_keepalive, 0); |
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647 |
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648 ngx_conf_merge_uint_value(conf->upstream.next_upstream_tries, |
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diff
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649 prev->upstream.next_upstream_tries, 0); |
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650 |
581 | 651 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, |
652 prev->upstream.connect_timeout, 60000); | |
653 | |
654 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
655 prev->upstream.send_timeout, 60000); | |
656 | |
657 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
658 prev->upstream.read_timeout, 60000); | |
659 | |
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660 ngx_conf_merge_msec_value(conf->upstream.next_upstream_timeout, |
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661 prev->upstream.next_upstream_timeout, 0); |
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662 |
581 | 663 ngx_conf_merge_size_value(conf->upstream.buffer_size, |
664 prev->upstream.buffer_size, | |
665 (size_t) ngx_pagesize); | |
666 | |
667 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
668 prev->upstream.next_upstream, | |
669 (NGX_CONF_BITMASK_SET | |
670 |NGX_HTTP_UPSTREAM_FT_ERROR | |
671 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
672 | |
665 | 673 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { |
674 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
675 |NGX_HTTP_UPSTREAM_FT_OFF; | |
676 } | |
677 | |
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678 if (conf->upstream.upstream == NULL) { |
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679 conf->upstream.upstream = prev->upstream.upstream; |
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680 } |
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parents:
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diff
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681 |
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682 if (conf->index == NGX_CONF_UNSET) { |
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683 conf->index = prev->index; |
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684 } |
a37fe5ceacc4
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parents:
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685 |
4835
a4512d7737f6
Memcached: memcached_gzip_flag directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4499
diff
changeset
|
686 ngx_conf_merge_uint_value(conf->gzip_flag, prev->gzip_flag, 0); |
a4512d7737f6
Memcached: memcached_gzip_flag directive.
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parents:
4499
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changeset
|
687 |
581 | 688 return NGX_CONF_OK; |
689 } | |
690 | |
691 | |
692 static char * | |
693 ngx_http_memcached_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
694 { | |
2392 | 695 ngx_http_memcached_loc_conf_t *mlcf = conf; |
581 | 696 |
697 ngx_str_t *value; | |
807
3095bf59059b
now the "memcached_pass" directive uses ngx_parse_url()
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parents:
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changeset
|
698 ngx_url_t u; |
581 | 699 ngx_http_core_loc_conf_t *clcf; |
700 | |
2392 | 701 if (mlcf->upstream.upstream) { |
581 | 702 return "is duplicate"; |
703 } | |
704 | |
705 value = cf->args->elts; | |
706 | |
807
3095bf59059b
now the "memcached_pass" directive uses ngx_parse_url()
Igor Sysoev <igor@sysoev.ru>
parents:
675
diff
changeset
|
707 ngx_memzero(&u, sizeof(ngx_url_t)); |
581 | 708 |
807
3095bf59059b
now the "memcached_pass" directive uses ngx_parse_url()
Igor Sysoev <igor@sysoev.ru>
parents:
675
diff
changeset
|
709 u.url = value[1]; |
884 | 710 u.no_resolve = 1; |
815
b630109560b7
style fix: remove trailing spaces
Igor Sysoev <igor@sysoev.ru>
parents:
807
diff
changeset
|
711 |
2392 | 712 mlcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); |
713 if (mlcf->upstream.upstream == NULL) { | |
884 | 714 return NGX_CONF_ERROR; |
581 | 715 } |
716 | |
717 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
718 | |
719 clcf->handler = ngx_http_memcached_handler; | |
720 | |
7321
45e513c3540d
Fixed invalid access to location defined as an empty string.
Ruslan Ermilov <ru@nginx.com>
parents:
7238
diff
changeset
|
721 if (clcf->name.len && clcf->name.data[clcf->name.len - 1] == '/') { |
581 | 722 clcf->auto_redirect = 1; |
723 } | |
724 | |
2392 | 725 mlcf->index = ngx_http_get_variable_index(cf, &ngx_http_memcached_key); |
1076 | 726 |
2392 | 727 if (mlcf->index == NGX_ERROR) { |
1076 | 728 return NGX_CONF_ERROR; |
729 } | |
730 | |
581 | 731 return NGX_CONF_OK; |
732 } |