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nginx 0.7.8
[nginx-catap.git] / src / http / ngx_http_core_module.c
blob776438ba0f4448520f44cc75c862982e1a7f1aa5
1
2 /*
3 * Copyright (C) Igor Sysoev
4 */
5
6
7 #include <ngx_config.h>
8 #include <ngx_core.h>
9 #include <ngx_event.h>
10 #include <ngx_http.h>
11 #include <nginx.h>
12
13
14 typedef struct {
15 u_char *name;
16 uint32_t method;
17 } ngx_http_method_name_t;
18
19
20 #define NGX_HTTP_REQUEST_BODY_FILE_OFF 0
21 #define NGX_HTTP_REQUEST_BODY_FILE_ON 1
22 #define NGX_HTTP_REQUEST_BODY_FILE_CLEAN 2
23
24
25 static ngx_int_t ngx_http_core_find_location(ngx_http_request_t *r);
26 static ngx_int_t ngx_http_core_find_static_location(ngx_http_request_t *r,
27 ngx_http_location_tree_node_t *node);
28 static ngx_int_t ngx_http_core_send_continue(ngx_http_request_t *r);
29
30 static ngx_int_t ngx_http_core_preconfiguration(ngx_conf_t *cf);
31 static void *ngx_http_core_create_main_conf(ngx_conf_t *cf);
32 static char *ngx_http_core_init_main_conf(ngx_conf_t *cf, void *conf);
33 static void *ngx_http_core_create_srv_conf(ngx_conf_t *cf);
34 static char *ngx_http_core_merge_srv_conf(ngx_conf_t *cf,
35 void *parent, void *child);
36 static void *ngx_http_core_create_loc_conf(ngx_conf_t *cf);
37 static char *ngx_http_core_merge_loc_conf(ngx_conf_t *cf,
38 void *parent, void *child);
39
40 static char *ngx_http_core_server(ngx_conf_t *cf, ngx_command_t *cmd,
41 void *dummy);
42 static char *ngx_http_core_location(ngx_conf_t *cf, ngx_command_t *cmd,
43 void *dummy);
44
45 static char *ngx_http_core_types(ngx_conf_t *cf, ngx_command_t *cmd,
46 void *conf);
47 static char *ngx_http_core_type(ngx_conf_t *cf, ngx_command_t *dummy,
48 void *conf);
49
50 static char *ngx_http_core_listen(ngx_conf_t *cf, ngx_command_t *cmd,
51 void *conf);
52 static char *ngx_http_core_server_name(ngx_conf_t *cf, ngx_command_t *cmd,
53 void *conf);
54 static char *ngx_http_core_root(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
55 static char *ngx_http_core_limit_except(ngx_conf_t *cf, ngx_command_t *cmd,
56 void *conf);
57 static char *ngx_http_core_directio(ngx_conf_t *cf, ngx_command_t *cmd,
58 void *conf);
59 static char *ngx_http_core_error_page(ngx_conf_t *cf, ngx_command_t *cmd,
60 void *conf);
61 static char *ngx_http_core_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd,
62 void *conf);
63 static char *ngx_http_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd,
64 void *conf);
65 static char *ngx_http_core_keepalive(ngx_conf_t *cf, ngx_command_t *cmd,
66 void *conf);
67 static char *ngx_http_core_internal(ngx_conf_t *cf, ngx_command_t *cmd,
68 void *conf);
69 static char *ngx_http_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd,
70 void *conf);
71 #if (NGX_HTTP_GZIP)
72 static char *ngx_http_gzip_disable(ngx_conf_t *cf, ngx_command_t *cmd,
73 void *conf);
74 #endif
75
76 static char *ngx_http_core_lowat_check(ngx_conf_t *cf, void *post, void *data);
77 static char *ngx_http_core_pool_size(ngx_conf_t *cf, void *post, void *data);
78
79 static ngx_conf_post_t ngx_http_core_lowat_post =
80 { ngx_http_core_lowat_check };
81
82 static ngx_conf_post_handler_pt ngx_http_core_pool_size_p =
83 ngx_http_core_pool_size;
84
85 static ngx_conf_deprecated_t ngx_conf_deprecated_optimize_server_names = {
86 ngx_conf_deprecated, "optimize_server_names", "server_name_in_redirect"
87 };
88
89 static ngx_conf_deprecated_t ngx_conf_deprecated_open_file_cache_retest = {
90 ngx_conf_deprecated, "open_file_cache_retest", "open_file_cache_valid"
91 };
92
93 static ngx_conf_deprecated_t ngx_conf_deprecated_satisfy_any = {
94 ngx_conf_deprecated, "satisfy_any", "satisfy"
95 };
96
97
98 static ngx_conf_enum_t ngx_http_core_request_body_in_file[] = {
99 { ngx_string("off"), NGX_HTTP_REQUEST_BODY_FILE_OFF },
100 { ngx_string("on"), NGX_HTTP_REQUEST_BODY_FILE_ON },
101 { ngx_string("clean"), NGX_HTTP_REQUEST_BODY_FILE_CLEAN },
102 { ngx_null_string, 0 }
103 };
104
105
106 static ngx_conf_enum_t ngx_http_core_satisfy[] = {
107 { ngx_string("all"), NGX_HTTP_SATISFY_ALL },
108 { ngx_string("any"), NGX_HTTP_SATISFY_ANY },
109 { ngx_null_string, 0 }
110 };
111
112
113 #if (NGX_HTTP_GZIP)
114
115 static ngx_conf_enum_t ngx_http_gzip_http_version[] = {
116 { ngx_string("1.0"), NGX_HTTP_VERSION_10 },
117 { ngx_string("1.1"), NGX_HTTP_VERSION_11 },
118 { ngx_null_string, 0 }
119 };
120
121
122 static ngx_conf_bitmask_t ngx_http_gzip_proxied_mask[] = {
123 { ngx_string("off"), NGX_HTTP_GZIP_PROXIED_OFF },
124 { ngx_string("expired"), NGX_HTTP_GZIP_PROXIED_EXPIRED },
125 { ngx_string("no-cache"), NGX_HTTP_GZIP_PROXIED_NO_CACHE },
126 { ngx_string("no-store"), NGX_HTTP_GZIP_PROXIED_NO_STORE },
127 { ngx_string("private"), NGX_HTTP_GZIP_PROXIED_PRIVATE },
128 { ngx_string("no_last_modified"), NGX_HTTP_GZIP_PROXIED_NO_LM },
129 { ngx_string("no_etag"), NGX_HTTP_GZIP_PROXIED_NO_ETAG },
130 { ngx_string("auth"), NGX_HTTP_GZIP_PROXIED_AUTH },
131 { ngx_string("any"), NGX_HTTP_GZIP_PROXIED_ANY },
132 { ngx_null_string, 0 }
133 };
134
135
136 static ngx_str_t ngx_http_gzip_no_cache = ngx_string("no-cache");
137 static ngx_str_t ngx_http_gzip_no_store = ngx_string("no-store");
138 static ngx_str_t ngx_http_gzip_private = ngx_string("private");
139
140 #endif
141
142
143 static ngx_command_t ngx_http_core_commands[] = {
144
145 { ngx_string("variables_hash_max_size"),
146 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1,
147 ngx_conf_set_num_slot,
148 NGX_HTTP_MAIN_CONF_OFFSET,
149 offsetof(ngx_http_core_main_conf_t, variables_hash_max_size),
150 NULL },
151
152 { ngx_string("variables_hash_bucket_size"),
153 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1,
154 ngx_conf_set_num_slot,
155 NGX_HTTP_MAIN_CONF_OFFSET,
156 offsetof(ngx_http_core_main_conf_t, variables_hash_bucket_size),
157 NULL },
158
159 { ngx_string("server_names_hash_max_size"),
160 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1,
161 ngx_conf_set_num_slot,
162 NGX_HTTP_MAIN_CONF_OFFSET,
163 offsetof(ngx_http_core_main_conf_t, server_names_hash_max_size),
164 NULL },
165
166 { ngx_string("server_names_hash_bucket_size"),
167 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1,
168 ngx_conf_set_num_slot,
169 NGX_HTTP_MAIN_CONF_OFFSET,
170 offsetof(ngx_http_core_main_conf_t, server_names_hash_bucket_size),
171 NULL },
172
173 { ngx_string("server"),
174 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_MULTI|NGX_CONF_NOARGS,
175 ngx_http_core_server,
176 0,
177 0,
178 NULL },
179
180 { ngx_string("connection_pool_size"),
181 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
182 ngx_conf_set_size_slot,
183 NGX_HTTP_SRV_CONF_OFFSET,
184 offsetof(ngx_http_core_srv_conf_t, connection_pool_size),
185 &ngx_http_core_pool_size_p },
186
187 { ngx_string("request_pool_size"),
188 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
189 ngx_conf_set_size_slot,
190 NGX_HTTP_SRV_CONF_OFFSET,
191 offsetof(ngx_http_core_srv_conf_t, request_pool_size),
192 &ngx_http_core_pool_size_p },
193
194 { ngx_string("client_header_timeout"),
195 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
196 ngx_conf_set_msec_slot,
197 NGX_HTTP_SRV_CONF_OFFSET,
198 offsetof(ngx_http_core_srv_conf_t, client_header_timeout),
199 NULL },
200
201 { ngx_string("client_header_buffer_size"),
202 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
203 ngx_conf_set_size_slot,
204 NGX_HTTP_SRV_CONF_OFFSET,
205 offsetof(ngx_http_core_srv_conf_t, client_header_buffer_size),
206 NULL },
207
208 { ngx_string("large_client_header_buffers"),
209 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE2,
210 ngx_conf_set_bufs_slot,
211 NGX_HTTP_SRV_CONF_OFFSET,
212 offsetof(ngx_http_core_srv_conf_t, large_client_header_buffers),
213 NULL },
214
215 { ngx_string("optimize_server_names"),
216 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
217 ngx_conf_set_flag_slot,
218 NGX_HTTP_LOC_CONF_OFFSET,
219 offsetof(ngx_http_core_loc_conf_t, server_name_in_redirect),
220 &ngx_conf_deprecated_optimize_server_names },
221
222 { ngx_string("ignore_invalid_headers"),
223 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
224 ngx_conf_set_flag_slot,
225 NGX_HTTP_SRV_CONF_OFFSET,
226 offsetof(ngx_http_core_srv_conf_t, ignore_invalid_headers),
227 NULL },
228
229 { ngx_string("merge_slashes"),
230 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
231 ngx_conf_set_flag_slot,
232 NGX_HTTP_SRV_CONF_OFFSET,
233 offsetof(ngx_http_core_srv_conf_t, merge_slashes),
234 NULL },
235
236 { ngx_string("location"),
237 NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE12,
238 ngx_http_core_location,
239 NGX_HTTP_SRV_CONF_OFFSET,
240 0,
241 NULL },
242
243 { ngx_string("listen"),
244 NGX_HTTP_SRV_CONF|NGX_CONF_1MORE,
245 ngx_http_core_listen,
246 NGX_HTTP_SRV_CONF_OFFSET,
247 0,
248 NULL },
249
250 { ngx_string("server_name"),
251 NGX_HTTP_SRV_CONF|NGX_CONF_1MORE,
252 ngx_http_core_server_name,
253 NGX_HTTP_SRV_CONF_OFFSET,
254 0,
255 NULL },
256
257 { ngx_string("types_hash_max_size"),
258 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
259 ngx_conf_set_num_slot,
260 NGX_HTTP_LOC_CONF_OFFSET,
261 offsetof(ngx_http_core_loc_conf_t, types_hash_max_size),
262 NULL },
263
264 { ngx_string("types_hash_bucket_size"),
265 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
266 ngx_conf_set_num_slot,
267 NGX_HTTP_LOC_CONF_OFFSET,
268 offsetof(ngx_http_core_loc_conf_t, types_hash_bucket_size),
269 NULL },
270
271 { ngx_string("types"),
272 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF
273 |NGX_CONF_BLOCK|NGX_CONF_NOARGS,
274 ngx_http_core_types,
275 NGX_HTTP_LOC_CONF_OFFSET,
276 0,
277 NULL },
278
279 { ngx_string("default_type"),
280 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
281 ngx_conf_set_str_slot,
282 NGX_HTTP_LOC_CONF_OFFSET,
283 offsetof(ngx_http_core_loc_conf_t, default_type),
284 NULL },
285
286 { ngx_string("root"),
287 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
288 |NGX_CONF_TAKE1,
289 ngx_http_core_root,
290 NGX_HTTP_LOC_CONF_OFFSET,
291 0,
292 NULL },
293
294 { ngx_string("alias"),
295 NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
296 ngx_http_core_root,
297 NGX_HTTP_LOC_CONF_OFFSET,
298 0,
299 NULL },
300
301 { ngx_string("limit_except"),
302 NGX_HTTP_LOC_CONF|NGX_CONF_BLOCK|NGX_CONF_1MORE,
303 ngx_http_core_limit_except,
304 NGX_HTTP_LOC_CONF_OFFSET,
305 0,
306 NULL },
307
308 { ngx_string("client_max_body_size"),
309 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
310 ngx_conf_set_off_slot,
311 NGX_HTTP_LOC_CONF_OFFSET,
312 offsetof(ngx_http_core_loc_conf_t, client_max_body_size),
313 NULL },
314
315 { ngx_string("client_body_buffer_size"),
316 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
317 ngx_conf_set_size_slot,
318 NGX_HTTP_LOC_CONF_OFFSET,
319 offsetof(ngx_http_core_loc_conf_t, client_body_buffer_size),
320 NULL },
321
322 { ngx_string("client_body_timeout"),
323 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
324 ngx_conf_set_msec_slot,
325 NGX_HTTP_LOC_CONF_OFFSET,
326 offsetof(ngx_http_core_loc_conf_t, client_body_timeout),
327 NULL },
328
329 { ngx_string("client_body_temp_path"),
330 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234,
331 ngx_conf_set_path_slot,
332 NGX_HTTP_LOC_CONF_OFFSET,
333 offsetof(ngx_http_core_loc_conf_t, client_body_temp_path),
334 (void *) ngx_garbage_collector_temp_handler },
335
336 { ngx_string("client_body_in_file_only"),
337 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
338 ngx_conf_set_enum_slot,
339 NGX_HTTP_LOC_CONF_OFFSET,
340 offsetof(ngx_http_core_loc_conf_t, client_body_in_file_only),
341 &ngx_http_core_request_body_in_file },
342
343 { ngx_string("sendfile"),
344 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
345 |NGX_CONF_TAKE1,
346 ngx_conf_set_flag_slot,
347 NGX_HTTP_LOC_CONF_OFFSET,
348 offsetof(ngx_http_core_loc_conf_t, sendfile),
349 NULL },
350
351 { ngx_string("sendfile_max_chunk"),
352 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
353 ngx_conf_set_size_slot,
354 NGX_HTTP_LOC_CONF_OFFSET,
355 offsetof(ngx_http_core_loc_conf_t, sendfile_max_chunk),
356 NULL },
357
358 { ngx_string("directio"),
359 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
360 ngx_http_core_directio,
361 NGX_HTTP_LOC_CONF_OFFSET,
362 0,
363 NULL },
364
365 { ngx_string("tcp_nopush"),
366 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
367 ngx_conf_set_flag_slot,
368 NGX_HTTP_LOC_CONF_OFFSET,
369 offsetof(ngx_http_core_loc_conf_t, tcp_nopush),
370 NULL },
371
372 { ngx_string("tcp_nodelay"),
373 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
374 ngx_conf_set_flag_slot,
375 NGX_HTTP_LOC_CONF_OFFSET,
376 offsetof(ngx_http_core_loc_conf_t, tcp_nodelay),
377 NULL },
378
379 { ngx_string("send_timeout"),
380 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
381 ngx_conf_set_msec_slot,
382 NGX_HTTP_LOC_CONF_OFFSET,
383 offsetof(ngx_http_core_loc_conf_t, send_timeout),
384 NULL },
385
386 { ngx_string("send_lowat"),
387 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
388 ngx_conf_set_size_slot,
389 NGX_HTTP_LOC_CONF_OFFSET,
390 offsetof(ngx_http_core_loc_conf_t, send_lowat),
391 &ngx_http_core_lowat_post },
392
393 { ngx_string("postpone_output"),
394 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
395 ngx_conf_set_size_slot,
396 NGX_HTTP_LOC_CONF_OFFSET,
397 offsetof(ngx_http_core_loc_conf_t, postpone_output),
398 NULL },
399
400 { ngx_string("limit_rate"),
401 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
402 |NGX_CONF_TAKE1,
403 ngx_conf_set_size_slot,
404 NGX_HTTP_LOC_CONF_OFFSET,
405 offsetof(ngx_http_core_loc_conf_t, limit_rate),
406 NULL },
407
408 { ngx_string("keepalive_timeout"),
409 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12,
410 ngx_http_core_keepalive,
411 NGX_HTTP_LOC_CONF_OFFSET,
412 0,
413 NULL },
414
415 { ngx_string("satisfy"),
416 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
417 ngx_conf_set_enum_slot,
418 NGX_HTTP_LOC_CONF_OFFSET,
419 offsetof(ngx_http_core_loc_conf_t, satisfy),
420 &ngx_http_core_satisfy },
421
422 { ngx_string("satisfy_any"),
423 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
424 ngx_conf_set_flag_slot,
425 NGX_HTTP_LOC_CONF_OFFSET,
426 offsetof(ngx_http_core_loc_conf_t, satisfy),
427 &ngx_conf_deprecated_satisfy_any },
428
429 { ngx_string("internal"),
430 NGX_HTTP_LOC_CONF|NGX_CONF_NOARGS,
431 ngx_http_core_internal,
432 NGX_HTTP_LOC_CONF_OFFSET,
433 0,
434 NULL },
435
436 { ngx_string("lingering_time"),
437 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
438 ngx_conf_set_msec_slot,
439 NGX_HTTP_LOC_CONF_OFFSET,
440 offsetof(ngx_http_core_loc_conf_t, lingering_time),
441 NULL },
442
443 { ngx_string("lingering_timeout"),
444 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
445 ngx_conf_set_msec_slot,
446 NGX_HTTP_LOC_CONF_OFFSET,
447 offsetof(ngx_http_core_loc_conf_t, lingering_timeout),
448 NULL },
449
450 { ngx_string("reset_timedout_connection"),
451 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
452 ngx_conf_set_flag_slot,
453 NGX_HTTP_LOC_CONF_OFFSET,
454 offsetof(ngx_http_core_loc_conf_t, reset_timedout_connection),
455 NULL },
456
457 { ngx_string("server_name_in_redirect"),
458 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
459 ngx_conf_set_flag_slot,
460 NGX_HTTP_LOC_CONF_OFFSET,
461 offsetof(ngx_http_core_loc_conf_t, server_name_in_redirect),
462 NULL },
463
464 { ngx_string("port_in_redirect"),
465 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
466 ngx_conf_set_flag_slot,
467 NGX_HTTP_LOC_CONF_OFFSET,
468 offsetof(ngx_http_core_loc_conf_t, port_in_redirect),
469 NULL },
470
471 { ngx_string("msie_padding"),
472 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
473 ngx_conf_set_flag_slot,
474 NGX_HTTP_LOC_CONF_OFFSET,
475 offsetof(ngx_http_core_loc_conf_t, msie_padding),
476 NULL },
477
478 { ngx_string("msie_refresh"),
479 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
480 ngx_conf_set_flag_slot,
481 NGX_HTTP_LOC_CONF_OFFSET,
482 offsetof(ngx_http_core_loc_conf_t, msie_refresh),
483 NULL },
484
485 { ngx_string("log_not_found"),
486 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
487 ngx_conf_set_flag_slot,
488 NGX_HTTP_LOC_CONF_OFFSET,
489 offsetof(ngx_http_core_loc_conf_t, log_not_found),
490 NULL },
491
492 { ngx_string("recursive_error_pages"),
493 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
494 ngx_conf_set_flag_slot,
495 NGX_HTTP_LOC_CONF_OFFSET,
496 offsetof(ngx_http_core_loc_conf_t, recursive_error_pages),
497 NULL },
498
499 { ngx_string("server_tokens"),
500 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
501 ngx_conf_set_flag_slot,
502 NGX_HTTP_LOC_CONF_OFFSET,
503 offsetof(ngx_http_core_loc_conf_t, server_tokens),
504 NULL },
505
506 { ngx_string("error_page"),
507 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
508 |NGX_CONF_2MORE,
509 ngx_http_core_error_page,
510 NGX_HTTP_LOC_CONF_OFFSET,
511 0,
512 NULL },
513
514 { ngx_string("post_action"),
515 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
516 |NGX_CONF_TAKE1,
517 ngx_conf_set_str_slot,
518 NGX_HTTP_LOC_CONF_OFFSET,
519 offsetof(ngx_http_core_loc_conf_t, post_action),
520 NULL },
521
522 { ngx_string("error_log"),
523 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
524 ngx_http_core_error_log,
525 NGX_HTTP_LOC_CONF_OFFSET,
526 0,
527 NULL },
528
529 { ngx_string("open_file_cache"),
530 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12,
531 ngx_http_core_open_file_cache,
532 NGX_HTTP_LOC_CONF_OFFSET,
533 offsetof(ngx_http_core_loc_conf_t, open_file_cache),
534 NULL },
535
536 { ngx_string("open_file_cache_valid"),
537 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
538 ngx_conf_set_sec_slot,
539 NGX_HTTP_LOC_CONF_OFFSET,
540 offsetof(ngx_http_core_loc_conf_t, open_file_cache_valid),
541 NULL },
542
543 { ngx_string("open_file_cache_retest"),
544 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
545 ngx_conf_set_sec_slot,
546 NGX_HTTP_LOC_CONF_OFFSET,
547 offsetof(ngx_http_core_loc_conf_t, open_file_cache_valid),
548 &ngx_conf_deprecated_open_file_cache_retest },
549
550 { ngx_string("open_file_cache_min_uses"),
551 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
552 ngx_conf_set_num_slot,
553 NGX_HTTP_LOC_CONF_OFFSET,
554 offsetof(ngx_http_core_loc_conf_t, open_file_cache_min_uses),
555 NULL },
556
557 { ngx_string("open_file_cache_errors"),
558 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
559 ngx_conf_set_flag_slot,
560 NGX_HTTP_LOC_CONF_OFFSET,
561 offsetof(ngx_http_core_loc_conf_t, open_file_cache_errors),
562 NULL },
563
564 { ngx_string("open_file_cache_events"),
565 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
566 ngx_conf_set_flag_slot,
567 NGX_HTTP_LOC_CONF_OFFSET,
568 offsetof(ngx_http_core_loc_conf_t, open_file_cache_events),
569 NULL },
570
571 { ngx_string("resolver"),
572 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
573 ngx_http_core_resolver,
574 NGX_HTTP_LOC_CONF_OFFSET,
575 0,
576 NULL },
577
578 { ngx_string("resolver_timeout"),
579 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
580 ngx_conf_set_msec_slot,
581 NGX_HTTP_LOC_CONF_OFFSET,
582 offsetof(ngx_http_core_loc_conf_t, resolver_timeout),
583 NULL },
584
585 #if (NGX_HTTP_GZIP)
586
587 { ngx_string("gzip_vary"),
588 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
589 ngx_conf_set_flag_slot,
590 NGX_HTTP_LOC_CONF_OFFSET,
591 offsetof(ngx_http_core_loc_conf_t, gzip_vary),
592 NULL },
593
594 { ngx_string("gzip_http_version"),
595 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
596 ngx_conf_set_enum_slot,
597 NGX_HTTP_LOC_CONF_OFFSET,
598 offsetof(ngx_http_core_loc_conf_t, gzip_http_version),
599 &ngx_http_gzip_http_version },
600
601 { ngx_string("gzip_proxied"),
602 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
603 ngx_conf_set_bitmask_slot,
604 NGX_HTTP_LOC_CONF_OFFSET,
605 offsetof(ngx_http_core_loc_conf_t, gzip_proxied),
606 &ngx_http_gzip_proxied_mask },
607
608 { ngx_string("gzip_disable"),
609 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
610 ngx_http_gzip_disable,
611 NGX_HTTP_LOC_CONF_OFFSET,
612 0,
613 NULL },
614
615 #endif
616
617 ngx_null_command
618 };
619
620
621 static ngx_http_module_t ngx_http_core_module_ctx = {
622 ngx_http_core_preconfiguration, /* preconfiguration */
623 NULL, /* postconfiguration */
624
625 ngx_http_core_create_main_conf, /* create main configuration */
626 ngx_http_core_init_main_conf, /* init main configuration */
627
628 ngx_http_core_create_srv_conf, /* create server configuration */
629 ngx_http_core_merge_srv_conf, /* merge server configuration */
630
631 ngx_http_core_create_loc_conf, /* create location configuration */
632 ngx_http_core_merge_loc_conf /* merge location configuration */
633 };
634
635
636 ngx_module_t ngx_http_core_module = {
637 NGX_MODULE_V1,
638 &ngx_http_core_module_ctx, /* module context */
639 ngx_http_core_commands, /* module directives */
640 NGX_HTTP_MODULE, /* module type */
641 NULL, /* init master */
642 NULL, /* init module */
643 NULL, /* init process */
644 NULL, /* init thread */
645 NULL, /* exit thread */
646 NULL, /* exit process */
647 NULL, /* exit master */
648 NGX_MODULE_V1_PADDING
649 };
650
651
652 static ngx_str_t ngx_http_core_get_method = { 3, (u_char *) "GET " };
653
654
655 void
656 ngx_http_handler(ngx_http_request_t *r)
657 {
658 ngx_http_core_main_conf_t *cmcf;
659
660 r->connection->log->action = NULL;
661
662 r->connection->unexpected_eof = 0;
663
664 if (!r->internal) {
665 switch (r->headers_in.connection_type) {
666 case 0:
667 if (r->http_version > NGX_HTTP_VERSION_10) {
668 r->keepalive = 1;
669 } else {
670 r->keepalive = 0;
671 }
672 break;
673
674 case NGX_HTTP_CONNECTION_CLOSE:
675 r->keepalive = 0;
676 break;
677
678 case NGX_HTTP_CONNECTION_KEEP_ALIVE:
679 r->keepalive = 1;
680 break;
681 }
682
683 if (r->keepalive && r->headers_in.msie && r->method == NGX_HTTP_POST) {
684
685 /*
686 * MSIE may wait for some time if an response for
687 * a POST request was sent over a keepalive connection
688 */
689
690 r->keepalive = 0;
691 }
692
693 if (r->headers_in.content_length_n > 0) {
694 r->lingering_close = 1;
695
696 } else {
697 r->lingering_close = 0;
698 }
699
700 r->phase_handler = 0;
701
702 } else {
703 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
704 r->phase_handler = cmcf->phase_engine.server_rewrite_index;
705 }
706
707 if (r->unparsed_uri.len) {
708 r->valid_unparsed_uri = 1;
709 }
710
711 r->valid_location = 1;
712 r->gzip = 0;
713
714 r->write_event_handler = ngx_http_core_run_phases;
715 ngx_http_core_run_phases(r);
716 }
717
718
719 void
720 ngx_http_core_run_phases(ngx_http_request_t *r)
721 {
722 ngx_int_t rc;
723 ngx_http_phase_handler_t *ph;
724 ngx_http_core_main_conf_t *cmcf;
725
726 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
727
728 ph = cmcf->phase_engine.handlers;
729
730 while (ph[r->phase_handler].checker) {
731
732 rc = ph[r->phase_handler].checker(r, &ph[r->phase_handler]);
733
734 if (rc == NGX_OK) {
735 return;
736 }
737 }
738 }
739
740
741 ngx_int_t
742 ngx_http_core_generic_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph)
743 {
744 ngx_int_t rc;
745
746 /*
747 * generic phase checker,
748 * used by the post read, server rewrite, rewrite, and pre-access phases
749 */
750
751 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
752 "generic phase: %ui", r->phase_handler);
753
754 rc = ph->handler(r);
755
756 if (rc == NGX_OK) {
757 r->phase_handler = ph->next;
758 return NGX_AGAIN;
759 }
760
761 if (rc == NGX_DECLINED) {
762 r->phase_handler++;
763 return NGX_AGAIN;
764 }
765
766 if (rc == NGX_AGAIN || rc == NGX_DONE) {
767 return NGX_OK;
768 }
769
770 /* rc == NGX_ERROR || rc == NGX_HTTP_... */
771
772 ngx_http_finalize_request(r, rc);
773
774 return NGX_OK;
775 }
776
777
778 ngx_int_t
779 ngx_http_core_find_config_phase(ngx_http_request_t *r,
780 ngx_http_phase_handler_t *ph)
781 {
782 u_char *p;
783 size_t len;
784 ngx_int_t rc, expect;
785 ngx_http_core_loc_conf_t *clcf;
786
787 r->content_handler = NULL;
788 r->uri_changed = 0;
789
790 rc = ngx_http_core_find_location(r);
791
792 if (rc == NGX_HTTP_INTERNAL_SERVER_ERROR) {
793 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
794 return NGX_OK;
795 }
796
797 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
798
799 if (!r->internal && clcf->internal) {
800 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND);
801 return NGX_OK;
802 }
803
804 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
805 "using configuration \"%s%V\"",
806 (clcf->noname ? "*" : (clcf->exact_match ? "=" : "")),
807 &clcf->name);
808
809 ngx_http_update_location_config(r);
810
811 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
812 "http cl:%O max:%O",
813 r->headers_in.content_length_n, clcf->client_max_body_size);
814
815 if (r->headers_in.content_length_n != -1
816 && !r->discard_body
817 && clcf->client_max_body_size
818 && clcf->client_max_body_size < r->headers_in.content_length_n)
819 {
820 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
821 "client intended to send too large body: %O bytes",
822 r->headers_in.content_length_n);
823
824 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_ENTITY_TOO_LARGE);
825 return NGX_OK;
826 }
827
828 if (r->headers_in.expect) {
829 expect = ngx_http_core_send_continue(r);
830
831 if (expect != NGX_OK) {
832 ngx_http_finalize_request(r, expect);
833 return NGX_OK;
834 }
835 }
836
837 if (rc == NGX_DONE) {
838 r->headers_out.location = ngx_list_push(&r->headers_out.headers);
839 if (r->headers_out.location == NULL) {
840 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
841 return NGX_OK;
842 }
843
844 /*
845 * we do not need to set the r->headers_out.location->hash and
846 * r->headers_out.location->key fields
847 */
848
849 if (r->args.len == 0) {
850 r->headers_out.location->value = clcf->name;
851
852 } else {
853 len = clcf->name.len + 1 + r->args.len;
854 p = ngx_pnalloc(r->pool, len);
855
856 if (p == NULL) {
857 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
858 return NGX_OK;
859 }
860
861 r->headers_out.location->value.len = len;
862 r->headers_out.location->value.data = p;
863
864 p = ngx_cpymem(p, clcf->name.data, clcf->name.len);
865 *p++ = '?';
866 ngx_memcpy(p, r->args.data, r->args.len);
867 }
868
869 ngx_http_finalize_request(r, NGX_HTTP_MOVED_PERMANENTLY);
870 return NGX_OK;
871 }
872
873 r->phase_handler++;
874 return NGX_AGAIN;
875 }
876
877
878 ngx_int_t
879 ngx_http_core_post_rewrite_phase(ngx_http_request_t *r,
880 ngx_http_phase_handler_t *ph)
881 {
882 ngx_http_core_srv_conf_t *cscf;
883
884 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
885 "post rewrite phase: %ui", r->phase_handler);
886
887 if (!r->uri_changed) {
888 r->phase_handler++;
889 return NGX_AGAIN;
890 }
891
892 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
893 "uri changes: %d", r->uri_changes);
894
895 /*
896 * gcc before 3.3 compiles the broken code for
897 * if (r->uri_changes-- == 0)
898 * if the r->uri_changes is defined as
899 * unsigned uri_changes:4
900 */
901
902 r->uri_changes--;
903
904 if (r->uri_changes == 0) {
905 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
906 "rewrite or internal redirection cycle "
907 "while processing \"%V\"", &r->uri);
908
909 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
910 return NGX_OK;
911 }
912
913 r->phase_handler = ph->next;
914
915 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
916 r->loc_conf = cscf->ctx->loc_conf;
917
918 return NGX_AGAIN;
919 }
920
921
922 ngx_int_t
923 ngx_http_core_access_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph)
924 {
925 ngx_int_t rc;
926 ngx_http_core_loc_conf_t *clcf;
927
928 if (r != r->main) {
929 r->phase_handler = ph->next;
930 return NGX_AGAIN;
931 }
932
933 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
934 "access phase: %ui", r->phase_handler);
935
936 rc = ph->handler(r);
937
938 if (rc == NGX_DECLINED) {
939 r->phase_handler++;
940 return NGX_AGAIN;
941 }
942
943 if (rc == NGX_AGAIN || rc == NGX_DONE) {
944 return NGX_OK;
945 }
946
947 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
948
949 if (clcf->satisfy == NGX_HTTP_SATISFY_ALL) {
950
951 if (rc == NGX_OK) {
952 r->phase_handler++;
953 return NGX_AGAIN;
954 }
955
956 } else {
957 if (rc == NGX_OK) {
958 r->access_code = 0;
959
960 if (r->headers_out.www_authenticate) {
961 r->headers_out.www_authenticate->hash = 0;
962 }
963
964 r->phase_handler = ph->next;
965 return NGX_AGAIN;
966 }
967
968 if (rc == NGX_HTTP_FORBIDDEN || rc == NGX_HTTP_UNAUTHORIZED) {
969 r->access_code = rc;
970
971 r->phase_handler++;
972 return NGX_AGAIN;
973 }
974 }
975
976 /* rc == NGX_ERROR || rc == NGX_HTTP_... */
977
978 ngx_http_finalize_request(r, rc);
979 return NGX_OK;
980 }
981
982
983 ngx_int_t
984 ngx_http_core_post_access_phase(ngx_http_request_t *r,
985 ngx_http_phase_handler_t *ph)
986 {
987 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
988 "post access phase: %ui", r->phase_handler);
989
990 if (r->access_code) {
991
992 if (r->access_code == NGX_HTTP_FORBIDDEN) {
993 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
994 "access forbidden by rule");
995 }
996
997 ngx_http_finalize_request(r, r->access_code);
998 return NGX_OK;
999 }
1000
1001 r->phase_handler++;
1002 return NGX_AGAIN;
1003 }
1004
1005
1006 ngx_int_t
1007 ngx_http_core_content_phase(ngx_http_request_t *r,
1008 ngx_http_phase_handler_t *ph)
1009 {
1010 size_t root;
1011 ngx_int_t rc;
1012 ngx_str_t path;
1013
1014 if (r->content_handler) {
1015 r->write_event_handler = ngx_http_request_empty_handler;
1016 ngx_http_finalize_request(r, r->content_handler(r));
1017 return NGX_OK;
1018 }
1019
1020 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1021 "content phase: %ui", r->phase_handler);
1022
1023 rc = ph->handler(r);
1024
1025 if (rc == NGX_DONE) {
1026 return NGX_OK;
1027 }
1028
1029 if (rc != NGX_DECLINED) {
1030 ngx_http_finalize_request(r, rc);
1031 return NGX_OK;
1032 }
1033
1034 /* rc == NGX_DECLINED */
1035
1036 ph++;
1037
1038 if (ph->checker) {
1039 r->phase_handler++;
1040 return NGX_AGAIN;
1041 }
1042
1043 /* no content handler was found */
1044
1045 if (r->uri.data[r->uri.len - 1] == '/' && !r->zero_in_uri) {
1046
1047 if (ngx_http_map_uri_to_path(r, &path, &root, 0) != NULL) {
1048 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1049 "directory index of \"%s\" is forbidden", path.data);
1050 }
1051
1052 ngx_http_finalize_request(r, NGX_HTTP_FORBIDDEN);
1053 return NGX_OK;
1054 }
1055
1056 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no handler found");
1057
1058 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND);
1059 return NGX_OK;
1060 }
1061
1062
1063 void
1064 ngx_http_update_location_config(ngx_http_request_t *r)
1065 {
1066 ngx_http_core_loc_conf_t *clcf;
1067
1068 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1069
1070 if (r->method & clcf->limit_except) {
1071 r->loc_conf = clcf->limit_except_loc_conf;
1072 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1073 }
1074
1075 if (r == r->main) {
1076 r->connection->log->file = clcf->err_log->file;
1077
1078 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
1079 r->connection->log->log_level = clcf->err_log->log_level;
1080 }
1081 }
1082
1083 if ((ngx_io.flags & NGX_IO_SENDFILE) && clcf->sendfile) {
1084 r->connection->sendfile = 1;
1085
1086 } else {
1087 r->connection->sendfile = 0;
1088 }
1089
1090 if (clcf->client_body_in_file_only) {
1091 r->request_body_in_file_only = 1;
1092 r->request_body_in_persistent_file = 1;
1093 r->request_body_in_clean_file =
1094 clcf->client_body_in_file_only == NGX_HTTP_REQUEST_BODY_FILE_CLEAN;
1095 r->request_body_file_log_level = NGX_LOG_NOTICE;
1096
1097 } else {
1098 r->request_body_file_log_level = NGX_LOG_WARN;
1099 }
1100
1101 if (r->keepalive && clcf->keepalive_timeout == 0) {
1102 r->keepalive = 0;
1103 }
1104
1105 if (!clcf->tcp_nopush) {
1106 /* disable TCP_NOPUSH/TCP_CORK use */
1107 r->connection->tcp_nopush = NGX_TCP_NOPUSH_DISABLED;
1108 }
1109
1110 if (r->limit_rate == 0) {
1111 r->limit_rate = clcf->limit_rate;
1112 }
1113
1114 if (clcf->handler) {
1115 r->content_handler = clcf->handler;
1116 }
1117 }
1118
1119
1120 static ngx_int_t
1121 ngx_http_core_find_location(ngx_http_request_t *r)
1122 {
1123 ngx_int_t rc;
1124 ngx_http_core_loc_conf_t *pclcf;
1125
1126 pclcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1127
1128 rc = ngx_http_core_find_static_location(r, pclcf->static_locations);
1129
1130 if (rc == NGX_AGAIN) {
1131 /* look up nested locations */
1132 rc = ngx_http_core_find_location(r);
1133 }
1134
1135 if (rc == NGX_OK || rc == NGX_DONE) {
1136 return rc;
1137 }
1138
1139 /* rc == NGX_DECLINED or rc == NGX_AGAIN in nested location */
1140
1141 #if (NGX_PCRE)
1142 {
1143 ngx_int_t n;
1144 ngx_http_core_loc_conf_t *clcf, **clcfp;
1145
1146 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1147
1148 if (clcf->noregex == 0 && pclcf->regex_locations) {
1149
1150 for (clcfp = pclcf->regex_locations; *clcfp; clcfp++) {
1151
1152 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1153 "test location: ~ \"%V\"", &(*clcfp)->name);
1154
1155 n = ngx_regex_exec((*clcfp)->regex, &r->uri, NULL, 0);
1156
1157 if (n == NGX_REGEX_NO_MATCHED) {
1158 continue;
1159 }
1160
1161 if (n < 0) {
1162 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
1163 ngx_regex_exec_n
1164 " failed: %d on \"%V\" using \"%V\"",
1165 n, &r->uri, &(*clcfp)->name);
1166 return NGX_HTTP_INTERNAL_SERVER_ERROR;
1167 }
1168
1169 /* match */
1170
1171 r->loc_conf = (*clcfp)->loc_conf;
1172
1173 /* look up nested locations */
1174
1175 return ngx_http_core_find_location(r);
1176 }
1177 }
1178 }
1179 #endif
1180
1181 return rc;
1182 }
1183
1184
1185 /*
1186 * NGX_OK - exact match
1187 * NGX_DONE - auto redirect
1188 * NGX_AGAIN - inclusive match
1189 * NGX_DECLINED - no match
1190 */
1191
1192 static ngx_int_t
1193 ngx_http_core_find_static_location(ngx_http_request_t *r,
1194 ngx_http_location_tree_node_t *node)
1195 {
1196 u_char *uri;
1197 size_t len, n;
1198 ngx_int_t rc, rv;
1199
1200 len = r->uri.len;
1201 uri = r->uri.data;
1202
1203 rv = NGX_DECLINED;
1204
1205 for ( ;; ) {
1206
1207 if (node == NULL) {
1208 return rv;
1209 }
1210
1211 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1212 "test location: \"%*s\"", node->len, node->name);
1213
1214 n = (len <= (size_t) node->len) ? len : node->len;
1215
1216 rc = ngx_filename_cmp(uri, node->name, n);
1217
1218 if (rc != 0) {
1219 node = (rc < 0) ? node->left : node->right;
1220
1221 continue;
1222 }
1223
1224 if (len > (size_t) node->len) {
1225
1226 if (node->inclusive) {
1227
1228 r->loc_conf = node->inclusive->loc_conf;
1229 rv = NGX_AGAIN;
1230
1231 node = node->tree;
1232 uri += n;
1233 len -= n;
1234
1235 continue;
1236 }
1237
1238 /* exact only */
1239
1240 node = node->right;
1241
1242 continue;
1243 }
1244
1245 if (len == (size_t) node->len) {
1246
1247 r->loc_conf = (node->exact) ? node->exact->loc_conf:
1248 node->inclusive->loc_conf;
1249 return NGX_OK;
1250 }
1251
1252 /* len < node->len */
1253
1254 if (len + 1 == (size_t) node->len && node->auto_redirect) {
1255
1256 r->loc_conf = (node->exact) ? node->exact->loc_conf:
1257 node->inclusive->loc_conf;
1258 rv = NGX_DONE;
1259 }
1260
1261 node = node->left;
1262 }
1263 }
1264
1265
1266 static ngx_int_t
1267 ngx_http_core_send_continue(ngx_http_request_t *r)
1268 {
1269 ngx_int_t n;
1270 ngx_str_t *expect;
1271
1272 if (r->expect_tested) {
1273 return NGX_OK;
1274 }
1275
1276 r->expect_tested = 1;
1277
1278 expect = &r->headers_in.expect->value;
1279
1280 if (expect->len != sizeof("100-continue") - 1
1281 || ngx_strncasecmp(expect->data, (u_char *) "100-continue",
1282 sizeof("100-continue") - 1)
1283 != 0)
1284 {
1285 return NGX_OK;
1286 }
1287
1288 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1289 "send 100 Continue");
1290
1291 n = r->connection->send(r->connection,
1292 (u_char *) "HTTP/1.1 100 Continue" CRLF CRLF,
1293 sizeof("HTTP/1.1 100 Continue" CRLF CRLF) - 1);
1294
1295 if (n == sizeof("HTTP/1.1 100 Continue" CRLF CRLF) - 1) {
1296 return NGX_OK;
1297 }
1298
1299 /* we assume that such small packet should be send successfully */
1300
1301 return NGX_HTTP_INTERNAL_SERVER_ERROR;
1302 }
1303
1304
1305 void *
1306 ngx_http_test_content_type(ngx_http_request_t *r, ngx_hash_t *types_hash)
1307 {
1308 u_char c, *p;
1309 ngx_uint_t i, hash;
1310
1311 if (r->headers_out.content_type.len == 0) {
1312 return NULL;
1313 }
1314
1315 if (r->headers_out.content_type_lowcase == NULL) {
1316
1317 p = ngx_pnalloc(r->pool, r->headers_out.content_type_len);
1318
1319 if (p == NULL) {
1320 return NULL;
1321 }
1322
1323 r->headers_out.content_type_lowcase = p;
1324
1325 hash = 0;
1326
1327 for (i = 0; i < r->headers_out.content_type_len; i++) {
1328 c = ngx_tolower(r->headers_out.content_type.data[i]);
1329 hash = ngx_hash(hash, c);
1330 *p++ = c;
1331 }
1332
1333 r->headers_out.content_type_hash = hash;
1334 }
1335
1336 return ngx_hash_find(types_hash,
1337 r->headers_out.content_type_hash,
1338 r->headers_out.content_type_lowcase,
1339 r->headers_out.content_type_len);
1340 }
1341
1342
1343 ngx_int_t
1344 ngx_http_set_content_type(ngx_http_request_t *r)
1345 {
1346 u_char c, *exten;
1347 ngx_str_t *type;
1348 ngx_uint_t i, hash;
1349 ngx_http_core_loc_conf_t *clcf;
1350
1351 if (r->headers_out.content_type.len) {
1352 return NGX_OK;
1353 }
1354
1355 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1356
1357 if (r->exten.len) {
1358
1359 hash = 0;
1360
1361 for (i = 0; i < r->exten.len; i++) {
1362 c = r->exten.data[i];
1363
1364 if (c >= 'A' && c <= 'Z') {
1365
1366 exten = ngx_pnalloc(r->pool, r->exten.len);
1367 if (exten == NULL) {
1368 return NGX_HTTP_INTERNAL_SERVER_ERROR;
1369 }
1370
1371 hash = ngx_hash_strlow(exten, r->exten.data, r->exten.len);
1372
1373 r->exten.data = exten;
1374
1375 break;
1376 }
1377
1378 hash = ngx_hash(hash, c);
1379 }
1380
1381 type = ngx_hash_find(&clcf->types_hash, hash,
1382 r->exten.data, r->exten.len);
1383
1384 if (type) {
1385 r->headers_out.content_type_len = type->len;
1386 r->headers_out.content_type = *type;
1387
1388 return NGX_OK;
1389 }
1390 }
1391
1392 r->headers_out.content_type_len = clcf->default_type.len;
1393 r->headers_out.content_type = clcf->default_type;
1394
1395 return NGX_OK;
1396 }
1397
1398
1399 ngx_int_t
1400 ngx_http_set_exten(ngx_http_request_t *r)
1401 {
1402 ngx_int_t i;
1403
1404 r->exten.len = 0;
1405 r->exten.data = NULL;
1406
1407 for (i = r->uri.len - 1; i > 1; i--) {
1408 if (r->uri.data[i] == '.' && r->uri.data[i - 1] != '/') {
1409
1410 r->exten.len = r->uri.len - i - 1;
1411 r->exten.data = &r->uri.data[i + 1];
1412
1413 break;
1414
1415 } else if (r->uri.data[i] == '/') {
1416 break;
1417 }
1418 }
1419
1420 return NGX_OK;
1421 }
1422
1423
1424 ngx_int_t
1425 ngx_http_send_header(ngx_http_request_t *r)
1426 {
1427 if (r->err_status) {
1428 r->headers_out.status = r->err_status;
1429 r->headers_out.status_line.len = 0;
1430 }
1431
1432 return ngx_http_top_header_filter(r);
1433 }
1434
1435
1436 ngx_int_t
1437 ngx_http_output_filter(ngx_http_request_t *r, ngx_chain_t *in)
1438 {
1439 ngx_int_t rc;
1440
1441 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1442 "http output filter \"%V?%V\"", &r->uri, &r->args);
1443
1444 rc = ngx_http_top_body_filter(r, in);
1445
1446 if (rc == NGX_ERROR) {
1447 /* NGX_ERROR may be returned by any filter */
1448 r->connection->error = 1;
1449 }
1450
1451 return rc;
1452 }
1453
1454
1455 u_char *
1456 ngx_http_map_uri_to_path(ngx_http_request_t *r, ngx_str_t *path,
1457 size_t *root_length, size_t reserved)
1458 {
1459 u_char *last;
1460 size_t alias;
1461 ngx_http_core_loc_conf_t *clcf;
1462
1463 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1464
1465 alias = clcf->alias ? clcf->name.len : 0;
1466
1467 if (alias && !r->valid_location) {
1468 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
1469 "\"alias\" could not be used in location \"%V\" "
1470 "where URI was rewritten", &clcf->name);
1471 return NULL;
1472 }
1473
1474 reserved += r->uri.len - alias + 1;
1475
1476 if (clcf->root_lengths == NULL) {
1477
1478 *root_length = clcf->root.len;
1479
1480 path->len = clcf->root.len + reserved;
1481
1482 path->data = ngx_pnalloc(r->pool, path->len);
1483 if (path->data == NULL) {
1484 return NULL;
1485 }
1486
1487 last = ngx_copy(path->data, clcf->root.data, clcf->root.len);
1488
1489 } else {
1490 if (ngx_http_script_run(r, path, clcf->root_lengths->elts, reserved,
1491 clcf->root_values->elts)
1492 == NULL)
1493 {
1494 return NULL;
1495 }
1496
1497 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, path, 0)== NGX_ERROR)
1498 {
1499 return NULL;
1500 }
1501
1502 *root_length = path->len - reserved;
1503 last = path->data + *root_length;
1504 }
1505
1506 last = ngx_cpystrn(last, r->uri.data + alias, r->uri.len - alias + 1);
1507
1508 return last;
1509 }
1510
1511
1512 ngx_int_t
1513 ngx_http_auth_basic_user(ngx_http_request_t *r)
1514 {
1515 ngx_str_t auth, encoded;
1516 ngx_uint_t len;
1517
1518 if (r->headers_in.user.len == 0 && r->headers_in.user.data != NULL) {
1519 return NGX_DECLINED;
1520 }
1521
1522 if (r->headers_in.authorization == NULL) {
1523 r->headers_in.user.data = (u_char *) "";
1524 return NGX_DECLINED;
1525 }
1526
1527 encoded = r->headers_in.authorization->value;
1528
1529 if (encoded.len < sizeof("Basic ") - 1
1530 || ngx_strncasecmp(encoded.data, (u_char *) "Basic ",
1531 sizeof("Basic ") - 1)
1532 != 0)
1533 {
1534 r->headers_in.user.data = (u_char *) "";
1535 return NGX_DECLINED;
1536 }
1537
1538 encoded.len -= sizeof("Basic ") - 1;
1539 encoded.data += sizeof("Basic ") - 1;
1540
1541 while (encoded.len && encoded.data[0] == ' ') {
1542 encoded.len--;
1543 encoded.data++;
1544 }
1545
1546 if (encoded.len == 0) {
1547 r->headers_in.user.data = (u_char *) "";
1548 return NGX_DECLINED;
1549 }
1550
1551 auth.len = ngx_base64_decoded_length(encoded.len);
1552 auth.data = ngx_pnalloc(r->pool, auth.len + 1);
1553 if (auth.data == NULL) {
1554 return NGX_ERROR;
1555 }
1556
1557 if (ngx_decode_base64(&auth, &encoded) != NGX_OK) {
1558 r->headers_in.user.data = (u_char *) "";
1559 return NGX_DECLINED;
1560 }
1561
1562 auth.data[auth.len] = '\0';
1563
1564 for (len = 0; len < auth.len; len++) {
1565 if (auth.data[len] == ':') {
1566 break;
1567 }
1568 }
1569
1570 if (len == 0 || len == auth.len) {
1571 r->headers_in.user.data = (u_char *) "";
1572 return NGX_DECLINED;
1573 }
1574
1575 r->headers_in.user.len = len;
1576 r->headers_in.user.data = auth.data;
1577 r->headers_in.passwd.len = auth.len - len - 1;
1578 r->headers_in.passwd.data = &auth.data[len + 1];
1579
1580 return NGX_OK;
1581 }
1582
1583
1584 ngx_int_t
1585 ngx_http_server_addr(ngx_http_request_t *r, ngx_str_t *s)
1586 {
1587 socklen_t len;
1588 ngx_connection_t *c;
1589 struct sockaddr_in sin;
1590
1591 /* AF_INET only */
1592
1593 c = r->connection;
1594
1595 if (r->in_addr == 0) {
1596 len = sizeof(struct sockaddr_in);
1597 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
1598 ngx_connection_error(c, ngx_socket_errno, "getsockname() failed");
1599 return NGX_ERROR;
1600 }
1601
1602 r->in_addr = sin.sin_addr.s_addr;
1603 }
1604
1605 if (s == NULL) {
1606 return NGX_OK;
1607 }
1608
1609 s->len = ngx_inet_ntop(c->listening->family, &r->in_addr,
1610 s->data, INET_ADDRSTRLEN);
1611
1612 return NGX_OK;
1613 }
1614
1615
1616 #if (NGX_HTTP_GZIP)
1617
1618 ngx_int_t
1619 ngx_http_gzip_ok(ngx_http_request_t *r)
1620 {
1621 time_t date, expires;
1622 ngx_uint_t p;
1623 ngx_array_t *cc;
1624 ngx_table_elt_t *e, *d;
1625 ngx_http_core_loc_conf_t *clcf;
1626
1627 if (r->gzip == 1) {
1628 return NGX_OK;
1629 }
1630
1631 if (r->gzip == 2) {
1632 return NGX_DECLINED;
1633 }
1634
1635 r->gzip = 2;
1636
1637 if (r != r->main
1638 || r->headers_in.accept_encoding == NULL
1639 || ngx_strcasestrn(r->headers_in.accept_encoding->value.data,
1640 "gzip", 4 - 1)
1641 == NULL
1642
1643 /*
1644 * if the URL (without the "http://" prefix) is longer than 253 bytes,
1645 * then MSIE 4.x can not handle the compressed stream - it waits
1646 * too long, hangs up or crashes
1647 */
1648
1649 || (r->headers_in.msie4 && r->unparsed_uri.len > 200))
1650 {
1651 return NGX_DECLINED;
1652 }
1653
1654 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1655
1656 if (r->http_version < clcf->gzip_http_version) {
1657 return NGX_DECLINED;
1658 }
1659
1660 if (r->headers_in.via == NULL) {
1661 goto ok;
1662 }
1663
1664 p = clcf->gzip_proxied;
1665
1666 if (p & NGX_HTTP_GZIP_PROXIED_OFF) {
1667 return NGX_DECLINED;
1668 }
1669
1670 if (p & NGX_HTTP_GZIP_PROXIED_ANY) {
1671 goto ok;
1672 }
1673
1674 if (r->headers_in.authorization && (p & NGX_HTTP_GZIP_PROXIED_AUTH)) {
1675 goto ok;
1676 }
1677
1678 e = r->headers_out.expires;
1679
1680 if (e) {
1681
1682 if (!(p & NGX_HTTP_GZIP_PROXIED_EXPIRED)) {
1683 return NGX_DECLINED;
1684 }
1685
1686 expires = ngx_http_parse_time(e->value.data, e->value.len);
1687 if (expires == NGX_ERROR) {
1688 return NGX_DECLINED;
1689 }
1690
1691 d = r->headers_out.date;
1692
1693 if (d) {
1694 date = ngx_http_parse_time(d->value.data, d->value.len);
1695 if (date == NGX_ERROR) {
1696 return NGX_DECLINED;
1697 }
1698
1699 } else {
1700 date = ngx_time();
1701 }
1702
1703 if (expires < date) {
1704 goto ok;
1705 }
1706
1707 return NGX_DECLINED;
1708 }
1709
1710 cc = &r->headers_out.cache_control;
1711
1712 if (cc->elts) {
1713
1714 if ((p & NGX_HTTP_GZIP_PROXIED_NO_CACHE)
1715 && ngx_http_parse_multi_header_lines(cc, &ngx_http_gzip_no_cache,
1716 NULL)
1717 >= 0)
1718 {
1719 goto ok;
1720 }
1721
1722 if ((p & NGX_HTTP_GZIP_PROXIED_NO_STORE)
1723 && ngx_http_parse_multi_header_lines(cc, &ngx_http_gzip_no_store,
1724 NULL)
1725 >= 0)
1726 {
1727 goto ok;
1728 }
1729
1730 if ((p & NGX_HTTP_GZIP_PROXIED_PRIVATE)
1731 && ngx_http_parse_multi_header_lines(cc, &ngx_http_gzip_private,
1732 NULL)
1733 >= 0)
1734 {
1735 goto ok;
1736 }
1737
1738 return NGX_DECLINED;
1739 }
1740
1741 if ((p & NGX_HTTP_GZIP_PROXIED_NO_LM) && r->headers_out.last_modified) {
1742 return NGX_DECLINED;
1743 }
1744
1745 if ((p & NGX_HTTP_GZIP_PROXIED_NO_ETAG) && r->headers_out.etag) {
1746 return NGX_DECLINED;
1747 }
1748
1749 ok:
1750
1751 #if (NGX_PCRE)
1752
1753 if (clcf->gzip_disable && r->headers_in.user_agent) {
1754
1755 if (ngx_regex_exec_array(clcf->gzip_disable,
1756 &r->headers_in.user_agent->value,
1757 r->connection->log)
1758 != NGX_DECLINED)
1759 {
1760 return NGX_DECLINED;
1761 }
1762 }
1763
1764 #endif
1765
1766 r->gzip = 1;
1767
1768 return NGX_OK;
1769 }
1770
1771 #endif
1772
1773
1774 ngx_int_t
1775 ngx_http_subrequest(ngx_http_request_t *r,
1776 ngx_str_t *uri, ngx_str_t *args, ngx_http_request_t **psr,
1777 ngx_http_post_subrequest_t *ps, ngx_uint_t flags)
1778 {
1779 ngx_connection_t *c;
1780 ngx_http_request_t *sr;
1781 ngx_http_log_ctx_t *ctx;
1782 ngx_http_core_srv_conf_t *cscf;
1783 ngx_http_postponed_request_t *pr, *p;
1784
1785 r->main->subrequests--;
1786
1787 if (r->main->subrequests == 0) {
1788 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1789 "subrequests cycle while processing \"%V\"", uri);
1790 r->main->subrequests = 1;
1791 return NGX_ERROR;
1792 }
1793
1794 sr = ngx_pcalloc(r->pool, sizeof(ngx_http_request_t));
1795 if (sr == NULL) {
1796 return NGX_ERROR;
1797 }
1798
1799 sr->signature = NGX_HTTP_MODULE;
1800
1801 c = r->connection;
1802 sr->connection = c;
1803
1804 sr->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
1805 if (sr->ctx == NULL) {
1806 return NGX_ERROR;
1807 }
1808
1809 if (ngx_list_init(&sr->headers_out.headers, r->pool, 20,
1810 sizeof(ngx_table_elt_t))
1811 == NGX_ERROR)
1812 {
1813 return NGX_ERROR;
1814 }
1815
1816 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
1817 sr->main_conf = cscf->ctx->main_conf;
1818 sr->srv_conf = cscf->ctx->srv_conf;
1819 sr->loc_conf = cscf->ctx->loc_conf;
1820
1821 sr->pool = r->pool;
1822
1823 sr->headers_in = r->headers_in;
1824
1825 ngx_http_clear_content_length(sr);
1826 ngx_http_clear_accept_ranges(sr);
1827 ngx_http_clear_last_modified(sr);
1828
1829 sr->request_body = r->request_body;
1830
1831 sr->method = NGX_HTTP_GET;
1832 sr->http_version = r->http_version;
1833
1834 sr->request_line = r->request_line;
1835 sr->uri = *uri;
1836
1837 if (args) {
1838 sr->args = *args;
1839 }
1840
1841 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
1842 "http subrequest \"%V?%V\"", uri, &sr->args);
1843
1844 sr->zero_in_uri = (flags & NGX_HTTP_ZERO_IN_URI) != 0;
1845 sr->subrequest_in_memory = (flags & NGX_HTTP_SUBREQUEST_IN_MEMORY) != 0;
1846
1847 sr->unparsed_uri = r->unparsed_uri;
1848 sr->method_name = ngx_http_core_get_method;
1849 sr->http_protocol = r->http_protocol;
1850
1851 if (ngx_http_set_exten(sr) != NGX_OK) {
1852 return NGX_ERROR;
1853 }
1854
1855 sr->main = r->main;
1856 sr->parent = r;
1857 sr->post_subrequest = ps;
1858 sr->read_event_handler = ngx_http_request_empty_handler;
1859 sr->write_event_handler = ngx_http_request_empty_handler;
1860
1861 if (c->data == r) {
1862 c->data = sr;
1863 }
1864
1865 sr->in_addr = r->in_addr;
1866 sr->port = r->port;
1867 sr->port_text = r->port_text;
1868
1869 sr->variables = r->variables;
1870
1871 sr->log_handler = r->log_handler;
1872
1873 pr = ngx_palloc(r->pool, sizeof(ngx_http_postponed_request_t));
1874 if (pr == NULL) {
1875 return NGX_ERROR;
1876 }
1877
1878 pr->request = sr;
1879 pr->out = NULL;
1880 pr->next = NULL;
1881
1882 if (r->postponed) {
1883 for (p = r->postponed; p->next; p = p->next) { /* void */ }
1884 p->next = pr;
1885
1886 } else {
1887 r->postponed = pr;
1888 }
1889
1890 ctx = c->log->data;
1891 ctx->current_request = sr;
1892
1893 sr->internal = 1;
1894 sr->fast_subrequest = 1;
1895
1896 sr->discard_body = r->discard_body;
1897 sr->main_filter_need_in_memory = r->main_filter_need_in_memory;
1898
1899 sr->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1;
1900
1901 ngx_http_handler(sr);
1902
1903 if (!c->destroyed) {
1904 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
1905 "http subrequest done \"%V?%V\"", uri, &sr->args);
1906
1907 r->main->subrequests++;
1908
1909 *psr = sr;
1910
1911 if (sr->fast_subrequest) {
1912 sr->fast_subrequest = 0;
1913
1914 if (sr->done) {
1915 return NGX_OK;
1916 }
1917 }
1918
1919 return NGX_AGAIN;
1920 }
1921
1922 return NGX_DONE;
1923 }
1924
1925
1926 ngx_int_t
1927 ngx_http_internal_redirect(ngx_http_request_t *r,
1928 ngx_str_t *uri, ngx_str_t *args)
1929 {
1930 ngx_http_core_srv_conf_t *cscf;
1931
1932 r->uri_changes--;
1933
1934 if (r->uri_changes == 0) {
1935 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1936 "rewrite or internal redirection cycle "
1937 "while internal redirect to \"%V\"", uri);
1938
1939 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
1940 return NGX_DONE;
1941 }
1942
1943 r->uri = *uri;
1944
1945 if (args) {
1946 r->args = *args;
1947
1948 } else {
1949 r->args.len = 0;
1950 r->args.data = NULL;
1951 }
1952
1953 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1954 "internal redirect: \"%V?%V\"", uri, &r->args);
1955
1956 if (ngx_http_set_exten(r) != NGX_OK) {
1957 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
1958 return NGX_DONE;
1959 }
1960
1961 /* clear the modules contexts */
1962 ngx_memzero(r->ctx, sizeof(void *) * ngx_http_max_module);
1963
1964 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
1965 r->loc_conf = cscf->ctx->loc_conf;
1966
1967 ngx_http_update_location_config(r);
1968
1969 r->internal = 1;
1970
1971 ngx_http_handler(r);
1972
1973 return NGX_DONE;
1974 }
1975
1976
1977 ngx_int_t
1978 ngx_http_named_location(ngx_http_request_t *r, ngx_str_t *name)
1979 {
1980 ngx_http_core_srv_conf_t *cscf;
1981 ngx_http_core_loc_conf_t **clcfp;
1982 ngx_http_core_main_conf_t *cmcf;
1983
1984 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
1985
1986 for (clcfp = cscf->named_locations; *clcfp; clcfp++) {
1987
1988 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1989 "test location: \"%V\"", &(*clcfp)->name);
1990
1991 if (name->len != (*clcfp)->name.len
1992 || ngx_strncmp(name->data, (*clcfp)->name.data, name->len) != 0)
1993 {
1994 continue;
1995 }
1996
1997 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1998 "using location: %V \"%V?%V\"", name, &r->uri, &r->args);
1999
2000 r->internal = 1;
2001 r->content_handler = NULL;
2002 r->loc_conf = (*clcfp)->loc_conf;
2003
2004 ngx_http_update_location_config(r);
2005
2006 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
2007
2008 r->phase_handler = cmcf->phase_engine.location_rewrite_index;
2009
2010 ngx_http_core_run_phases(r);
2011
2012 return NGX_DONE;
2013 }
2014
2015 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
2016 "could not find named location \"%V\"", name);
2017
2018 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
2019
2020 return NGX_DONE;
2021 }
2022
2023
2024 ngx_http_cleanup_t *
2025 ngx_http_cleanup_add(ngx_http_request_t *r, size_t size)
2026 {
2027 ngx_http_cleanup_t *cln;
2028
2029 r = r->main;
2030
2031 cln = ngx_palloc(r->pool, sizeof(ngx_http_cleanup_t));
2032 if (cln == NULL) {
2033 return NULL;
2034 }
2035
2036 if (size) {
2037 cln->data = ngx_palloc(r->pool, size);
2038 if (cln->data == NULL) {
2039 return NULL;
2040 }
2041
2042 } else {
2043 cln->data = NULL;
2044 }
2045
2046 cln->handler = NULL;
2047 cln->next = r->cleanup;
2048
2049 r->cleanup = cln;
2050
2051 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
2052 "http cleanup add: %p", cln);
2053
2054 return cln;
2055 }
2056
2057
2058 static char *
2059 ngx_http_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
2060 {
2061 char *rv;
2062 void *mconf;
2063 ngx_uint_t i;
2064 ngx_conf_t pcf;
2065 ngx_http_module_t *module;
2066 ngx_http_conf_ctx_t *ctx, *http_ctx;
2067 ngx_http_core_srv_conf_t *cscf, **cscfp;
2068 ngx_http_core_main_conf_t *cmcf;
2069
2070 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t));
2071 if (ctx == NULL) {
2072 return NGX_CONF_ERROR;
2073 }
2074
2075 http_ctx = cf->ctx;
2076 ctx->main_conf = http_ctx->main_conf;
2077
2078 /* the server{}'s srv_conf */
2079
2080 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
2081 if (ctx->srv_conf == NULL) {
2082 return NGX_CONF_ERROR;
2083 }
2084
2085 /* the server{}'s loc_conf */
2086
2087 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
2088 if (ctx->loc_conf == NULL) {
2089 return NGX_CONF_ERROR;
2090 }
2091
2092 for (i = 0; ngx_modules[i]; i++) {
2093 if (ngx_modules[i]->type != NGX_HTTP_MODULE) {
2094 continue;
2095 }
2096
2097 module = ngx_modules[i]->ctx;
2098
2099 if (module->create_srv_conf) {
2100 mconf = module->create_srv_conf(cf);
2101 if (mconf == NULL) {
2102 return NGX_CONF_ERROR;
2103 }
2104
2105 ctx->srv_conf[ngx_modules[i]->ctx_index] = mconf;
2106 }
2107
2108 if (module->create_loc_conf) {
2109 mconf = module->create_loc_conf(cf);
2110 if (mconf == NULL) {
2111 return NGX_CONF_ERROR;
2112 }
2113
2114 ctx->loc_conf[ngx_modules[i]->ctx_index] = mconf;
2115 }
2116 }
2117
2118
2119 /* the server configuration context */
2120
2121 cscf = ctx->srv_conf[ngx_http_core_module.ctx_index];
2122 cscf->ctx = ctx;
2123
2124
2125 cmcf = ctx->main_conf[ngx_http_core_module.ctx_index];
2126
2127 cscfp = ngx_array_push(&cmcf->servers);
2128 if (cscfp == NULL) {
2129 return NGX_CONF_ERROR;
2130 }
2131
2132 *cscfp = cscf;
2133
2134
2135 /* parse inside server{} */
2136
2137 pcf = *cf;
2138 cf->ctx = ctx;
2139 cf->cmd_type = NGX_HTTP_SRV_CONF;
2140
2141 rv = ngx_conf_parse(cf, NULL);
2142
2143 *cf = pcf;
2144
2145 return rv;
2146 }
2147
2148
2149 static char *
2150 ngx_http_core_location(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
2151 {
2152 char *rv;
2153 ngx_uint_t i;
2154 ngx_str_t *value;
2155 ngx_conf_t save;
2156 ngx_http_module_t *module;
2157 ngx_http_conf_ctx_t *ctx, *pctx;
2158 ngx_http_core_loc_conf_t *clcf, *pclcf;
2159
2160 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t));
2161 if (ctx == NULL) {
2162 return NGX_CONF_ERROR;
2163 }
2164
2165 pctx = cf->ctx;
2166 ctx->main_conf = pctx->main_conf;
2167 ctx->srv_conf = pctx->srv_conf;
2168
2169 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
2170 if (ctx->loc_conf == NULL) {
2171 return NGX_CONF_ERROR;
2172 }
2173
2174 for (i = 0; ngx_modules[i]; i++) {
2175 if (ngx_modules[i]->type != NGX_HTTP_MODULE) {
2176 continue;
2177 }
2178
2179 module = ngx_modules[i]->ctx;
2180
2181 if (module->create_loc_conf) {
2182 ctx->loc_conf[ngx_modules[i]->ctx_index] =
2183 module->create_loc_conf(cf);
2184 if (ctx->loc_conf[ngx_modules[i]->ctx_index] == NULL) {
2185 return NGX_CONF_ERROR;
2186 }
2187 }
2188 }
2189
2190 clcf = ctx->loc_conf[ngx_http_core_module.ctx_index];
2191 clcf->loc_conf = ctx->loc_conf;
2192
2193 value = cf->args->elts;
2194
2195 if (cf->args->nelts == 3) {
2196 if (value[1].len == 1 && value[1].data[0] == '=') {
2197 clcf->name = value[2];
2198 clcf->exact_match = 1;
2199
2200 } else if (value[1].len == 2
2201 && value[1].data[0] == '^'
2202 && value[1].data[1] == '~')
2203 {
2204 clcf->name = value[2];
2205 clcf->noregex = 1;
2206
2207 } else if ((value[1].len == 1 && value[1].data[0] == '~')
2208 || (value[1].len == 2
2209 && value[1].data[0] == '~'
2210 && value[1].data[1] == '*'))
2211 {
2212 #if (NGX_PCRE)
2213 ngx_str_t err;
2214 u_char errstr[NGX_MAX_CONF_ERRSTR];
2215
2216 err.len = NGX_MAX_CONF_ERRSTR;
2217 err.data = errstr;
2218
2219 clcf->regex = ngx_regex_compile(&value[2],
2220 value[1].len == 2 ? NGX_REGEX_CASELESS: 0,
2221 cf->pool, &err);
2222
2223 if (clcf->regex == NULL) {
2224 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s", err.data);
2225 return NGX_CONF_ERROR;
2226 }
2227
2228 clcf->name = value[2];
2229 #else
2230 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2231 "the using of the regex \"%V\" "
2232 "requires PCRE library", &value[2]);
2233 return NGX_CONF_ERROR;
2234 #endif
2235
2236 } else {
2237 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2238 "invalid location modifier \"%V\"", &value[1]);
2239 return NGX_CONF_ERROR;
2240 }
2241
2242 } else {
2243
2244 clcf->name = value[1];
2245
2246 if (value[1].data[0] == '@') {
2247 clcf->named = 1;
2248 }
2249 }
2250
2251 pclcf = pctx->loc_conf[ngx_http_core_module.ctx_index];
2252
2253 if (pclcf->name.len) {
2254
2255 /* nested location */
2256
2257 #if 0
2258 clcf->prev_location = pclcf;
2259 #endif
2260
2261 if (pclcf->exact_match) {
2262 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2263 "location \"%V\" could not be inside "
2264 "the exact location \"%V\"",
2265 &clcf->name, &pclcf->name);
2266 return NGX_CONF_ERROR;
2267 }
2268
2269 if (pclcf->named) {
2270 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2271 "location \"%V\" could not be inside "
2272 "the named location \"%V\"",
2273 &clcf->name, &pclcf->name);
2274 return NGX_CONF_ERROR;
2275 }
2276
2277 if (clcf->named) {
2278 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2279 "named location \"%V\" must be "
2280 "on server level only",
2281 &clcf->name);
2282 return NGX_CONF_ERROR;
2283 }
2284
2285 #if (NGX_PCRE)
2286 if (clcf->regex == NULL
2287 && ngx_strncmp(clcf->name.data, pclcf->name.data, pclcf->name.len)
2288 != 0)
2289 #else
2290 if (ngx_strncmp(clcf->name.data, pclcf->name.data, pclcf->name.len)
2291 != 0)
2292 #endif
2293 {
2294 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2295 "location \"%V\" is outside location \"%V\"",
2296 &clcf->name, &pclcf->name);
2297 return NGX_CONF_ERROR;
2298 }
2299 }
2300
2301 if (ngx_http_add_location(cf, &pclcf->locations, clcf) != NGX_OK) {
2302 return NGX_CONF_ERROR;
2303 }
2304
2305 save = *cf;
2306 cf->ctx = ctx;
2307 cf->cmd_type = NGX_HTTP_LOC_CONF;
2308
2309 rv = ngx_conf_parse(cf, NULL);
2310
2311 *cf = save;
2312
2313 return rv;
2314 }
2315
2316
2317 static char *
2318 ngx_http_core_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
2319 {
2320 ngx_http_core_loc_conf_t *lcf = conf;
2321
2322 char *rv;
2323 ngx_conf_t save;
2324
2325 if (lcf->types == NULL) {
2326 lcf->types = ngx_array_create(cf->pool, 64, sizeof(ngx_hash_key_t));
2327 if (lcf->types == NULL) {
2328 return NGX_CONF_ERROR;
2329 }
2330 }
2331
2332 save = *cf;
2333 cf->handler = ngx_http_core_type;
2334 cf->handler_conf = conf;
2335
2336 rv = ngx_conf_parse(cf, NULL);
2337
2338 *cf = save;
2339
2340 return rv;
2341 }
2342
2343
2344 static char *
2345 ngx_http_core_type(ngx_conf_t *cf, ngx_command_t *dummy, void *conf)
2346 {
2347 ngx_http_core_loc_conf_t *lcf = conf;
2348
2349 ngx_str_t *value, *content_type, *old, file;
2350 ngx_uint_t i, n, hash;
2351 ngx_hash_key_t *type;
2352
2353 value = cf->args->elts;
2354
2355 if (ngx_strcmp(value[0].data, "include") == 0) {
2356 file = value[1];
2357
2358 if (ngx_conf_full_name(cf->cycle, &file, 1) == NGX_ERROR){
2359 return NGX_CONF_ERROR;
2360 }
2361
2362 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cf->log, 0, "include %s", file.data);
2363
2364 return ngx_conf_parse(cf, &file);
2365 }
2366
2367 content_type = ngx_palloc(cf->pool, sizeof(ngx_str_t));
2368 if (content_type == NULL) {
2369 return NGX_CONF_ERROR;
2370 }
2371
2372 *content_type = value[0];
2373
2374 for (i = 1; i < cf->args->nelts; i++) {
2375
2376 hash = ngx_hash_strlow(value[i].data, value[i].data, value[i].len);
2377
2378 type = lcf->types->elts;
2379 for (n = 0; n < lcf->types->nelts; n++) {
2380 if (ngx_strcmp(value[i].data, type[n].key.data) == 0) {
2381 old = type[n].value;
2382 type[n].value = content_type;
2383
2384 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
2385 "duplicate extention \"%V\", "
2386 "content type: \"%V\", "
2387 "old content type: \"%V\"",
2388 &value[i], content_type, old);
2389 continue;
2390 }
2391 }
2392
2393
2394 type = ngx_array_push(lcf->types);
2395 if (type == NULL) {
2396 return NGX_CONF_ERROR;
2397 }
2398
2399 type->key = value[i];
2400 type->key_hash = hash;
2401 type->value = content_type;
2402 }
2403
2404 return NGX_CONF_OK;
2405 }
2406
2407
2408 static ngx_int_t
2409 ngx_http_core_preconfiguration(ngx_conf_t *cf)
2410 {
2411 return ngx_http_variables_add_core_vars(cf);
2412 }
2413
2414
2415 static void *
2416 ngx_http_core_create_main_conf(ngx_conf_t *cf)
2417 {
2418 ngx_http_core_main_conf_t *cmcf;
2419
2420 cmcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_core_main_conf_t));
2421 if (cmcf == NULL) {
2422 return NGX_CONF_ERROR;
2423 }
2424
2425 if (ngx_array_init(&cmcf->servers, cf->pool, 4,
2426 sizeof(ngx_http_core_srv_conf_t *))
2427 != NGX_OK)
2428 {
2429 return NGX_CONF_ERROR;
2430 }
2431
2432 cmcf->server_names_hash_max_size = NGX_CONF_UNSET_UINT;
2433 cmcf->server_names_hash_bucket_size = NGX_CONF_UNSET_UINT;
2434
2435 cmcf->variables_hash_max_size = NGX_CONF_UNSET_UINT;
2436 cmcf->variables_hash_bucket_size = NGX_CONF_UNSET_UINT;
2437
2438 return cmcf;
2439 }
2440
2441
2442 static char *
2443 ngx_http_core_init_main_conf(ngx_conf_t *cf, void *conf)
2444 {
2445 ngx_http_core_main_conf_t *cmcf = conf;
2446
2447 if (cmcf->server_names_hash_max_size == NGX_CONF_UNSET_UINT) {
2448 cmcf->server_names_hash_max_size = 512;
2449 }
2450
2451 if (cmcf->server_names_hash_bucket_size == NGX_CONF_UNSET_UINT) {
2452 cmcf->server_names_hash_bucket_size = ngx_cacheline_size;
2453 }
2454
2455 cmcf->server_names_hash_bucket_size =
2456 ngx_align(cmcf->server_names_hash_bucket_size, ngx_cacheline_size);
2457
2458
2459 if (cmcf->variables_hash_max_size == NGX_CONF_UNSET_UINT) {
2460 cmcf->variables_hash_max_size = 512;
2461 }
2462
2463 if (cmcf->variables_hash_bucket_size == NGX_CONF_UNSET_UINT) {
2464 cmcf->variables_hash_bucket_size = 64;
2465 }
2466
2467 cmcf->variables_hash_bucket_size =
2468 ngx_align(cmcf->variables_hash_bucket_size, ngx_cacheline_size);
2469
2470 return NGX_CONF_OK;
2471 }
2472
2473
2474 static void *
2475 ngx_http_core_create_srv_conf(ngx_conf_t *cf)
2476 {
2477 ngx_http_core_srv_conf_t *cscf;
2478
2479 cscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_core_srv_conf_t));
2480 if (cscf == NULL) {
2481 return NGX_CONF_ERROR;
2482 }
2483
2484 /*
2485 * set by ngx_pcalloc():
2486 *
2487 * conf->client_large_buffers.num = 0;
2488 */
2489
2490 if (ngx_array_init(&cscf->listen, cf->pool, 4, sizeof(ngx_http_listen_t))
2491 == NGX_ERROR)
2492 {
2493 return NGX_CONF_ERROR;
2494 }
2495
2496 if (ngx_array_init(&cscf->server_names, cf->temp_pool, 4,
2497 sizeof(ngx_http_server_name_t))
2498 == NGX_ERROR)
2499 {
2500 return NGX_CONF_ERROR;
2501 }
2502
2503 cscf->connection_pool_size = NGX_CONF_UNSET_SIZE;
2504 cscf->request_pool_size = NGX_CONF_UNSET_SIZE;
2505 cscf->client_header_timeout = NGX_CONF_UNSET_MSEC;
2506 cscf->client_header_buffer_size = NGX_CONF_UNSET_SIZE;
2507 cscf->ignore_invalid_headers = NGX_CONF_UNSET;
2508 cscf->merge_slashes = NGX_CONF_UNSET;
2509
2510 return cscf;
2511 }
2512
2513
2514 static char *
2515 ngx_http_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
2516 {
2517 ngx_http_core_srv_conf_t *prev = parent;
2518 ngx_http_core_srv_conf_t *conf = child;
2519
2520 ngx_http_listen_t *ls;
2521 ngx_http_server_name_t *sn;
2522
2523 /* TODO: it does not merge, it inits only */
2524
2525 if (conf->listen.nelts == 0) {
2526 ls = ngx_array_push(&conf->listen);
2527 if (ls == NULL) {
2528 return NGX_CONF_ERROR;
2529 }
2530
2531 ngx_memzero(ls, sizeof(ngx_http_listen_t));
2532
2533 ls->addr = INADDR_ANY;
2534 #if (NGX_WIN32)
2535 ls->port = 80;
2536 #else
2537 /* STUB: getuid() should be cached */
2538 ls->port = (getuid() == 0) ? 80 : 8000;
2539 #endif
2540 ls->family = AF_INET;
2541
2542 ls->conf.backlog = NGX_LISTEN_BACKLOG;
2543 ls->conf.rcvbuf = -1;
2544 ls->conf.sndbuf = -1;
2545 }
2546
2547 if (conf->server_name.data == NULL) {
2548 conf->server_name = cf->cycle->hostname;
2549
2550 sn = ngx_array_push(&conf->server_names);
2551 if (sn == NULL) {
2552 return NGX_CONF_ERROR;
2553 }
2554
2555 #if (NGX_PCRE)
2556 sn->regex = NULL;
2557 #endif
2558 sn->core_srv_conf = conf;
2559 sn->name.len = conf->server_name.len;
2560 sn->name.data = conf->server_name.data;
2561 }
2562
2563 ngx_conf_merge_size_value(conf->connection_pool_size,
2564 prev->connection_pool_size, 256);
2565 ngx_conf_merge_size_value(conf->request_pool_size,
2566 prev->request_pool_size, 4096);
2567 ngx_conf_merge_msec_value(conf->client_header_timeout,
2568 prev->client_header_timeout, 60000);
2569 ngx_conf_merge_size_value(conf->client_header_buffer_size,
2570 prev->client_header_buffer_size, 1024);
2571 ngx_conf_merge_bufs_value(conf->large_client_header_buffers,
2572 prev->large_client_header_buffers,
2573 4, ngx_pagesize);
2574
2575 if (conf->large_client_header_buffers.size < conf->connection_pool_size) {
2576 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2577 "the \"large_client_header_buffers\" size must be "
2578 "equal to or bigger than \"connection_pool_size\"");
2579 return NGX_CONF_ERROR;
2580 }
2581
2582 ngx_conf_merge_value(conf->ignore_invalid_headers,
2583 prev->ignore_invalid_headers, 1);
2584
2585 ngx_conf_merge_value(conf->merge_slashes, prev->merge_slashes, 1);
2586
2587 return NGX_CONF_OK;
2588 }
2589
2590
2591 static void *
2592 ngx_http_core_create_loc_conf(ngx_conf_t *cf)
2593 {
2594 ngx_http_core_loc_conf_t *lcf;
2595
2596 lcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_core_loc_conf_t));
2597 if (lcf == NULL) {
2598 return NGX_CONF_ERROR;
2599 }
2600
2601 /*
2602 * set by ngx_pcalloc():
2603 *
2604 * lcf->root = { 0, NULL };
2605 * lcf->limit_except = 0;
2606 * lcf->post_action = { 0, NULL };
2607 * lcf->types = NULL;
2608 * lcf->default_type = { 0, NULL };
2609 * lcf->err_log = NULL;
2610 * lcf->error_pages = NULL;
2611 * lcf->client_body_path = NULL;
2612 * lcf->regex = NULL;
2613 * lcf->exact_match = 0;
2614 * lcf->auto_redirect = 0;
2615 * lcf->alias = 0;
2616 * lcf->gzip_proxied = 0;
2617 */
2618
2619 lcf->client_max_body_size = NGX_CONF_UNSET;
2620 lcf->client_body_buffer_size = NGX_CONF_UNSET_SIZE;
2621 lcf->client_body_timeout = NGX_CONF_UNSET_MSEC;
2622 lcf->satisfy = NGX_CONF_UNSET_UINT;
2623 lcf->internal = NGX_CONF_UNSET;
2624 lcf->client_body_in_file_only = NGX_CONF_UNSET;
2625 lcf->sendfile = NGX_CONF_UNSET;
2626 lcf->sendfile_max_chunk = NGX_CONF_UNSET_SIZE;
2627 lcf->directio = NGX_CONF_UNSET;
2628 lcf->tcp_nopush = NGX_CONF_UNSET;
2629 lcf->tcp_nodelay = NGX_CONF_UNSET;
2630 lcf->send_timeout = NGX_CONF_UNSET_MSEC;
2631 lcf->send_lowat = NGX_CONF_UNSET_SIZE;
2632 lcf->postpone_output = NGX_CONF_UNSET_SIZE;
2633 lcf->limit_rate = NGX_CONF_UNSET_SIZE;
2634 lcf->keepalive_timeout = NGX_CONF_UNSET_MSEC;
2635 lcf->keepalive_header = NGX_CONF_UNSET;
2636 lcf->lingering_time = NGX_CONF_UNSET_MSEC;
2637 lcf->lingering_timeout = NGX_CONF_UNSET_MSEC;
2638 lcf->resolver_timeout = NGX_CONF_UNSET_MSEC;
2639 lcf->reset_timedout_connection = NGX_CONF_UNSET;
2640 lcf->server_name_in_redirect = NGX_CONF_UNSET;
2641 lcf->port_in_redirect = NGX_CONF_UNSET;
2642 lcf->msie_padding = NGX_CONF_UNSET;
2643 lcf->msie_refresh = NGX_CONF_UNSET;
2644 lcf->log_not_found = NGX_CONF_UNSET;
2645 lcf->recursive_error_pages = NGX_CONF_UNSET;
2646 lcf->server_tokens = NGX_CONF_UNSET;
2647 lcf->types_hash_max_size = NGX_CONF_UNSET_UINT;
2648 lcf->types_hash_bucket_size = NGX_CONF_UNSET_UINT;
2649
2650 lcf->open_file_cache = NGX_CONF_UNSET_PTR;
2651 lcf->open_file_cache_valid = NGX_CONF_UNSET;
2652 lcf->open_file_cache_min_uses = NGX_CONF_UNSET_UINT;
2653 lcf->open_file_cache_errors = NGX_CONF_UNSET;
2654 lcf->open_file_cache_events = NGX_CONF_UNSET;
2655
2656 #if (NGX_HTTP_GZIP)
2657 lcf->gzip_vary = NGX_CONF_UNSET;
2658 lcf->gzip_http_version = NGX_CONF_UNSET_UINT;
2659 #if (NGX_PCRE)
2660 lcf->gzip_disable = NGX_CONF_UNSET_PTR;
2661 #endif
2662 #endif
2663
2664 return lcf;
2665 }
2666
2667
2668 static ngx_str_t ngx_http_core_text_html_type = ngx_string("text/html");
2669 static ngx_str_t ngx_http_core_image_gif_type = ngx_string("image/gif");
2670 static ngx_str_t ngx_http_core_image_jpeg_type = ngx_string("image/jpeg");
2671
2672 static ngx_hash_key_t ngx_http_core_default_types[] = {
2673 { ngx_string("html"), 0, &ngx_http_core_text_html_type },
2674 { ngx_string("gif"), 0, &ngx_http_core_image_gif_type },
2675 { ngx_string("jpg"), 0, &ngx_http_core_image_jpeg_type },
2676 { ngx_null_string, 0, NULL }
2677 };
2678
2679
2680 static char *
2681 ngx_http_core_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
2682 {
2683 ngx_http_core_loc_conf_t *prev = parent;
2684 ngx_http_core_loc_conf_t *conf = child;
2685
2686 ngx_uint_t i;
2687 ngx_hash_key_t *type;
2688 ngx_hash_init_t types_hash;
2689
2690 if (conf->root.data == NULL) {
2691
2692 conf->alias = prev->alias;
2693 conf->root = prev->root;
2694 conf->root_lengths = prev->root_lengths;
2695 conf->root_values = prev->root_values;
2696
2697 if (prev->root.data == NULL) {
2698 conf->root.len = sizeof("html") - 1;
2699 conf->root.data = (u_char *) "html";
2700
2701 if (ngx_conf_full_name(cf->cycle, &conf->root, 0) == NGX_ERROR) {
2702 return NGX_CONF_ERROR;
2703 }
2704 }
2705 }
2706
2707 if (conf->post_action.data == NULL) {
2708 conf->post_action = prev->post_action;
2709 }
2710
2711 ngx_conf_merge_uint_value(conf->types_hash_max_size,
2712 prev->types_hash_max_size, 1024);
2713
2714 ngx_conf_merge_uint_value(conf->types_hash_bucket_size,
2715 prev->types_hash_bucket_size,
2716 ngx_cacheline_size);
2717
2718 conf->types_hash_bucket_size = ngx_align(conf->types_hash_bucket_size,
2719 ngx_cacheline_size);
2720
2721 /*
2722 * the special handling the "types" directive in the "http" section
2723 * to inherit the http's conf->types_hash to all servers
2724 */
2725
2726 if (prev->types && prev->types_hash.buckets == NULL) {
2727
2728 types_hash.hash = &prev->types_hash;
2729 types_hash.key = ngx_hash_key_lc;
2730 types_hash.max_size = conf->types_hash_max_size;
2731 types_hash.bucket_size = conf->types_hash_bucket_size;
2732 types_hash.name = "types_hash";
2733 types_hash.pool = cf->pool;
2734 types_hash.temp_pool = NULL;
2735
2736 if (ngx_hash_init(&types_hash, prev->types->elts, prev->types->nelts)
2737 != NGX_OK)
2738 {
2739 return NGX_CONF_ERROR;
2740 }
2741 }
2742
2743 if (conf->types == NULL) {
2744 conf->types = prev->types;
2745 conf->types_hash = prev->types_hash;
2746 }
2747
2748 if (conf->types == NULL) {
2749 conf->types = ngx_array_create(cf->pool, 4, sizeof(ngx_hash_key_t));
2750 if (conf->types == NULL) {
2751 return NGX_CONF_ERROR;
2752 }
2753
2754 for (i = 0; ngx_http_core_default_types[i].key.len; i++) {
2755 type = ngx_array_push(conf->types);
2756 if (type == NULL) {
2757 return NGX_CONF_ERROR;
2758 }
2759
2760 type->key = ngx_http_core_default_types[i].key;
2761 type->key_hash =
2762 ngx_hash_key_lc(ngx_http_core_default_types[i].key.data,
2763 ngx_http_core_default_types[i].key.len);
2764 type->value = ngx_http_core_default_types[i].value;
2765 }
2766 }
2767
2768 if (conf->types_hash.buckets == NULL) {
2769
2770 types_hash.hash = &conf->types_hash;
2771 types_hash.key = ngx_hash_key_lc;
2772 types_hash.max_size = conf->types_hash_max_size;
2773 types_hash.bucket_size = conf->types_hash_bucket_size;
2774 types_hash.name = "mime_types_hash";
2775 types_hash.pool = cf->pool;
2776 types_hash.temp_pool = NULL;
2777
2778 if (ngx_hash_init(&types_hash, conf->types->elts, conf->types->nelts)
2779 != NGX_OK)
2780 {
2781 return NGX_CONF_ERROR;
2782 }
2783 }
2784
2785 if (conf->err_log == NULL) {
2786 if (prev->err_log) {
2787 conf->err_log = prev->err_log;
2788 } else {
2789 conf->err_log = cf->cycle->new_log;
2790 }
2791 }
2792
2793 if (conf->error_pages == NULL && prev->error_pages) {
2794 conf->error_pages = prev->error_pages;
2795 }
2796
2797 ngx_conf_merge_str_value(conf->default_type,
2798 prev->default_type, "text/plain");
2799
2800 ngx_conf_merge_off_value(conf->client_max_body_size,
2801 prev->client_max_body_size, 1 * 1024 * 1024);
2802 ngx_conf_merge_size_value(conf->client_body_buffer_size,
2803 prev->client_body_buffer_size,
2804 (size_t) 2 * ngx_pagesize);
2805 ngx_conf_merge_msec_value(conf->client_body_timeout,
2806 prev->client_body_timeout, 60000);
2807
2808 ngx_conf_merge_uint_value(conf->satisfy, prev->satisfy,
2809 NGX_HTTP_SATISFY_ALL);
2810 ngx_conf_merge_value(conf->internal, prev->internal, 0);
2811 ngx_conf_merge_value(conf->client_body_in_file_only,
2812 prev->client_body_in_file_only, 0);
2813 ngx_conf_merge_value(conf->sendfile, prev->sendfile, 0);
2814 ngx_conf_merge_size_value(conf->sendfile_max_chunk,
2815 prev->sendfile_max_chunk, 0);
2816 ngx_conf_merge_off_value(conf->directio, prev->directio,
2817 NGX_MAX_OFF_T_VALUE);
2818 ngx_conf_merge_value(conf->tcp_nopush, prev->tcp_nopush, 0);
2819 ngx_conf_merge_value(conf->tcp_nodelay, prev->tcp_nodelay, 1);
2820
2821 ngx_conf_merge_msec_value(conf->send_timeout, prev->send_timeout, 60000);
2822 ngx_conf_merge_size_value(conf->send_lowat, prev->send_lowat, 0);
2823 ngx_conf_merge_size_value(conf->postpone_output, prev->postpone_output,
2824 1460);
2825 ngx_conf_merge_size_value(conf->limit_rate, prev->limit_rate, 0);
2826 ngx_conf_merge_msec_value(conf->keepalive_timeout,
2827 prev->keepalive_timeout, 75000);
2828 ngx_conf_merge_sec_value(conf->keepalive_header,
2829 prev->keepalive_header, 0);
2830 ngx_conf_merge_msec_value(conf->lingering_time,
2831 prev->lingering_time, 30000);
2832 ngx_conf_merge_msec_value(conf->lingering_timeout,
2833 prev->lingering_timeout, 5000);
2834 ngx_conf_merge_msec_value(conf->resolver_timeout,
2835 prev->resolver_timeout, 30000);
2836
2837 if (conf->resolver == NULL) {
2838
2839 if (prev->resolver == NULL) {
2840
2841 /*
2842 * create dummy resolver in http {} context
2843 * to inherit it in all servers
2844 */
2845
2846 prev->resolver = ngx_resolver_create(cf, NULL);
2847 if (prev->resolver == NULL) {
2848 return NGX_CONF_ERROR;
2849 }
2850 }
2851
2852 conf->resolver = prev->resolver;
2853 }
2854
2855 ngx_conf_merge_path_value(conf->client_body_temp_path,
2856 prev->client_body_temp_path,
2857 NGX_HTTP_CLIENT_TEMP_PATH, 0, 0, 0,
2858 ngx_garbage_collector_temp_handler, cf);
2859
2860 ngx_conf_merge_value(conf->reset_timedout_connection,
2861 prev->reset_timedout_connection, 0);
2862 ngx_conf_merge_value(conf->server_name_in_redirect,
2863 prev->server_name_in_redirect, 1);
2864 ngx_conf_merge_value(conf->port_in_redirect, prev->port_in_redirect, 1);
2865 ngx_conf_merge_value(conf->msie_padding, prev->msie_padding, 1);
2866 ngx_conf_merge_value(conf->msie_refresh, prev->msie_refresh, 0);
2867 ngx_conf_merge_value(conf->log_not_found, prev->log_not_found, 1);
2868 ngx_conf_merge_value(conf->recursive_error_pages,
2869 prev->recursive_error_pages, 0);
2870 ngx_conf_merge_value(conf->server_tokens, prev->server_tokens, 1);
2871
2872 ngx_conf_merge_ptr_value(conf->open_file_cache,
2873 prev->open_file_cache, NULL);
2874
2875 ngx_conf_merge_sec_value(conf->open_file_cache_valid,
2876 prev->open_file_cache_valid, 60);
2877
2878 ngx_conf_merge_uint_value(conf->open_file_cache_min_uses,
2879 prev->open_file_cache_min_uses, 1);
2880
2881 ngx_conf_merge_sec_value(conf->open_file_cache_errors,
2882 prev->open_file_cache_errors, 0);
2883
2884 ngx_conf_merge_sec_value(conf->open_file_cache_events,
2885 prev->open_file_cache_events, 0);
2886 #if (NGX_HTTP_GZIP)
2887
2888 ngx_conf_merge_value(conf->gzip_vary, prev->gzip_vary, 0);
2889 ngx_conf_merge_uint_value(conf->gzip_http_version, prev->gzip_http_version,
2890 NGX_HTTP_VERSION_11);
2891 ngx_conf_merge_bitmask_value(conf->gzip_proxied, prev->gzip_proxied,
2892 (NGX_CONF_BITMASK_SET|NGX_HTTP_GZIP_PROXIED_OFF));
2893
2894 #if (NGX_PCRE)
2895 ngx_conf_merge_ptr_value(conf->gzip_disable, prev->gzip_disable, NULL);
2896 #endif
2897
2898 #endif
2899
2900 return NGX_CONF_OK;
2901 }
2902
2903
2904 /* AF_INET only */
2905
2906 static char *
2907 ngx_http_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
2908 {
2909 ngx_http_core_srv_conf_t *scf = conf;
2910
2911 ngx_str_t *value, size;
2912 ngx_url_t u;
2913 ngx_uint_t n;
2914 ngx_http_listen_t *ls;
2915
2916 /*
2917 * TODO: check duplicate 'listen' directives,
2918 * add resolved name to server names ???
2919 */
2920
2921 value = cf->args->elts;
2922
2923 ngx_memzero(&u, sizeof(ngx_url_t));
2924
2925 u.url = value[1];
2926 u.listen = 1;
2927 u.default_port = 80;
2928
2929 if (ngx_parse_url(cf->pool, &u) != NGX_OK) {
2930 if (u.err) {
2931 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2932 "%s in \"%V\" of the \"listen\" directive",
2933 u.err, &u.url);
2934 }
2935
2936 return NGX_CONF_ERROR;
2937 }
2938
2939 ls = ngx_array_push(&scf->listen);
2940 if (ls == NULL) {
2941 return NGX_CONF_ERROR;
2942 }
2943
2944 ngx_memzero(ls, sizeof(ngx_http_listen_t));
2945
2946 ls->family = AF_INET;
2947 ls->addr = u.addr.in_addr;
2948 ls->port = u.port;
2949 ls->file_name = cf->conf_file->file.name.data;
2950 ls->line = cf->conf_file->line;
2951 ls->conf.backlog = NGX_LISTEN_BACKLOG;
2952 ls->conf.rcvbuf = -1;
2953 ls->conf.sndbuf = -1;
2954
2955 n = ngx_inet_ntop(AF_INET, &ls->addr, ls->conf.addr, INET_ADDRSTRLEN + 6);
2956 ngx_sprintf(&ls->conf.addr[n], ":%ui", ls->port);
2957
2958 if (cf->args->nelts == 2) {
2959 return NGX_CONF_OK;
2960 }
2961
2962 if (ngx_strcmp(value[2].data, "default") == 0) {
2963 ls->conf.default_server = 1;
2964 n = 3;
2965
2966 } else {
2967 n = 2;
2968 }
2969
2970 for ( /* void */ ; n < cf->args->nelts; n++) {
2971
2972 if (ls->conf.default_server == 0) {
2973 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2974 "\"%V\" parameter can be specified for "
2975 "the default \"listen\" directive only",
2976 &value[n]);
2977 return NGX_CONF_ERROR;
2978 }
2979
2980 if (ngx_strcmp(value[n].data, "bind") == 0) {
2981 ls->conf.bind = 1;
2982 continue;
2983 }
2984
2985 if (ngx_strncmp(value[n].data, "backlog=", 8) == 0) {
2986 ls->conf.backlog = ngx_atoi(value[n].data + 8, value[n].len - 8);
2987 ls->conf.bind = 1;
2988
2989 if (ls->conf.backlog == NGX_ERROR || ls->conf.backlog == 0) {
2990 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2991 "invalid backlog \"%V\"", &value[n]);
2992 return NGX_CONF_ERROR;
2993 }
2994
2995 continue;
2996 }
2997
2998 if (ngx_strncmp(value[n].data, "rcvbuf=", 7) == 0) {
2999 size.len = value[n].len - 7;
3000 size.data = value[n].data + 7;
3001
3002 ls->conf.rcvbuf = ngx_parse_size(&size);
3003 ls->conf.bind = 1;
3004
3005 if (ls->conf.rcvbuf == NGX_ERROR) {
3006 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3007 "invalid rcvbuf \"%V\"", &value[n]);
3008 return NGX_CONF_ERROR;
3009 }
3010
3011 continue;
3012 }
3013
3014 if (ngx_strncmp(value[n].data, "sndbuf=", 7) == 0) {
3015 size.len = value[n].len - 7;
3016 size.data = value[n].data + 7;
3017
3018 ls->conf.sndbuf = ngx_parse_size(&size);
3019 ls->conf.bind = 1;
3020
3021 if (ls->conf.sndbuf == NGX_ERROR) {
3022 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3023 "invalid sndbuf \"%V\"", &value[n]);
3024 return NGX_CONF_ERROR;
3025 }
3026
3027 continue;
3028 }
3029
3030 if (ngx_strncmp(value[n].data, "accept_filter=", 14) == 0) {
3031 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
3032 ls->conf.accept_filter = (char *) &value[n].data[14];
3033 ls->conf.bind = 1;
3034 #else
3035 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3036 "accept filters \"%V\" are not supported "
3037 "on this platform, ignored",
3038 &value[n]);
3039 #endif
3040 continue;
3041 }
3042
3043 if (ngx_strcmp(value[n].data, "deferred") == 0) {
3044 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
3045 ls->conf.deferred_accept = 1;
3046 ls->conf.bind = 1;
3047 #else
3048 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3049 "the deferred accept is not supported "
3050 "on this platform, ignored");
3051 #endif
3052 continue;
3053 }
3054
3055 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3056 "the invalid \"%V\" parameter", &value[n]);
3057 return NGX_CONF_ERROR;
3058 }
3059
3060 return NGX_CONF_OK;
3061 }
3062
3063
3064 static char *
3065 ngx_http_core_server_name(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3066 {
3067 ngx_http_core_srv_conf_t *cscf = conf;
3068
3069 u_char ch;
3070 ngx_str_t *value, name;
3071 ngx_uint_t i;
3072 ngx_http_server_name_t *sn;
3073
3074 value = cf->args->elts;
3075
3076 ch = value[1].data[0];
3077
3078 if (cscf->server_name.data == NULL && value[1].len) {
3079 name = value[1];
3080
3081 if (ch == '.') {
3082 name.len--;
3083 name.data++;
3084 }
3085
3086 cscf->server_name.len = name.len;
3087 cscf->server_name.data = ngx_pstrdup(cf->pool, &name);
3088 if (cscf->server_name.data == NULL) {
3089 return NGX_CONF_ERROR;
3090 }
3091 }
3092
3093 for (i = 1; i < cf->args->nelts; i++) {
3094
3095 ch = value[i].data[0];
3096
3097 if (value[i].len == 0
3098 || (ch == '*' && (value[i].len < 3 || value[i].data[1] != '.'))
3099 || (ch == '.' && value[i].len < 2))
3100 {
3101 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3102 "server name \"%V\" is invalid", &value[i]);
3103 return NGX_CONF_ERROR;
3104 }
3105
3106 if (ngx_strchr(value[i].data, '/')) {
3107 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
3108 "server name \"%V\" has strange symbols",
3109 &value[i]);
3110 }
3111
3112 if (value[i].len == 1 && ch == '*') {
3113 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3114 "\"server_name *\" is unsupported, use "
3115 "\"server_name_in_redirect off\" instead");
3116 return NGX_CONF_ERROR;
3117 }
3118
3119 sn = ngx_array_push(&cscf->server_names);
3120 if (sn == NULL) {
3121 return NGX_CONF_ERROR;
3122 }
3123
3124 #if (NGX_PCRE)
3125 sn->regex = NULL;
3126 #endif
3127 sn->core_srv_conf = cscf;
3128 sn->name = value[i];
3129
3130 if (value[i].data[0] != '~') {
3131 continue;
3132 }
3133
3134 #if (NGX_PCRE)
3135 {
3136 ngx_str_t err;
3137 u_char errstr[NGX_MAX_CONF_ERRSTR];
3138
3139 err.len = NGX_MAX_CONF_ERRSTR;
3140 err.data = errstr;
3141
3142 value[i].len--;
3143 value[i].data++;
3144
3145 sn->regex = ngx_regex_compile(&value[i], 0, cf->pool, &err);
3146
3147 if (sn->regex == NULL) {
3148 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s", err.data);
3149 return NGX_CONF_ERROR;
3150 }
3151
3152 sn->name = value[i];
3153 }
3154 #else
3155 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3156 "the using of the regex \"%V\" "
3157 "requires PCRE library", &value[i]);
3158
3159 return NGX_CONF_ERROR;
3160 #endif
3161 }
3162
3163 return NGX_CONF_OK;
3164 }
3165
3166
3167 static char *
3168 ngx_http_core_root(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3169 {
3170 ngx_http_core_loc_conf_t *lcf = conf;
3171
3172 ngx_str_t *value;
3173 ngx_uint_t alias, n;
3174 ngx_http_script_compile_t sc;
3175
3176 alias = (cmd->name.len == sizeof("alias") - 1) ? 1 : 0;
3177
3178 if (lcf->root.data) {
3179
3180 /* the (ngx_uint_t) cast is required by gcc 2.7.2.3 */
3181
3182 if ((ngx_uint_t) lcf->alias == alias) {
3183 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3184 "\"%V\" directive is duplicate",
3185 &cmd->name);
3186 } else {
3187 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3188 "\"%V\" directive is duplicate, "
3189 "\"%s\" directive is specified before",
3190 &cmd->name, lcf->alias ? "alias" : "root");
3191 }
3192
3193 return NGX_CONF_ERROR;
3194 }
3195
3196 if (lcf->named && alias) {
3197 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3198 "the \"alias\" directive may not be used "
3199 "inside named location");
3200
3201 return NGX_CONF_ERROR;
3202 }
3203
3204 #if (NGX_PCRE)
3205
3206 if (lcf->regex && alias) {
3207 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3208 "the \"alias\" directive may not be used "
3209 "inside location given by regular expression");
3210
3211 return NGX_CONF_ERROR;
3212 }
3213
3214 #endif
3215
3216 value = cf->args->elts;
3217
3218 if (ngx_strstr(value[1].data, "$document_root")
3219 || ngx_strstr(value[1].data, "${document_root}"))
3220 {
3221 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3222 "the $document_root variable may not be used "
3223 "in the \"%V\" directive",
3224 &cmd->name);
3225
3226 return NGX_CONF_ERROR;
3227 }
3228
3229 lcf->alias = alias;
3230 lcf->root = value[1];
3231
3232 if (!alias && lcf->root.data[lcf->root.len - 1] == '/') {
3233 lcf->root.len--;
3234 }
3235
3236 if (lcf->root.data[0] != '$') {
3237 if (ngx_conf_full_name(cf->cycle, &lcf->root, 0) == NGX_ERROR) {
3238 return NGX_CONF_ERROR;
3239 }
3240 }
3241
3242 n = ngx_http_script_variables_count(&lcf->root);
3243
3244 if (n == 0) {
3245 return NGX_CONF_OK;
3246 }
3247
3248 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
3249
3250 sc.cf = cf;
3251 sc.source = &lcf->root;
3252 sc.lengths = &lcf->root_lengths;
3253 sc.values = &lcf->root_values;
3254 sc.variables = n;
3255 sc.complete_lengths = 1;
3256 sc.complete_values = 1;
3257
3258 if (ngx_http_script_compile(&sc) != NGX_OK) {
3259 return NGX_CONF_ERROR;
3260 }
3261
3262 return NGX_CONF_OK;
3263 }
3264
3265
3266 static ngx_http_method_name_t ngx_methods_names[] = {
3267 { (u_char *) "GET", (uint32_t) ~NGX_HTTP_GET },
3268 { (u_char *) "HEAD", (uint32_t) ~NGX_HTTP_HEAD },
3269 { (u_char *) "POST", (uint32_t) ~NGX_HTTP_POST },
3270 { (u_char *) "PUT", (uint32_t) ~NGX_HTTP_PUT },
3271 { (u_char *) "DELETE", (uint32_t) ~NGX_HTTP_DELETE },
3272 { (u_char *) "MKCOL", (uint32_t) ~NGX_HTTP_MKCOL },
3273 { (u_char *) "COPY", (uint32_t) ~NGX_HTTP_COPY },
3274 { (u_char *) "MOVE", (uint32_t) ~NGX_HTTP_MOVE },
3275 { (u_char *) "OPTIONS", (uint32_t) ~NGX_HTTP_OPTIONS },
3276 { (u_char *) "PROPFIND" , (uint32_t) ~NGX_HTTP_PROPFIND },
3277 { (u_char *) "PROPPATCH", (uint32_t) ~NGX_HTTP_PROPPATCH },
3278 { (u_char *) "LOCK", (uint32_t) ~NGX_HTTP_LOCK },
3279 { (u_char *) "UNLOCK", (uint32_t) ~NGX_HTTP_UNLOCK },
3280 { NULL, 0 }
3281 };
3282
3283
3284 static char *
3285 ngx_http_core_limit_except(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3286 {
3287 ngx_http_core_loc_conf_t *pclcf = conf;
3288
3289 char *rv;
3290 void *mconf;
3291 ngx_str_t *value;
3292 ngx_uint_t i;
3293 ngx_conf_t save;
3294 ngx_http_module_t *module;
3295 ngx_http_conf_ctx_t *ctx, *pctx;
3296 ngx_http_method_name_t *name;
3297 ngx_http_core_loc_conf_t *clcf;
3298
3299 if (pclcf->limit_except) {
3300 return "duplicate";
3301 }
3302
3303 pclcf->limit_except = 0xffffffff;
3304
3305 value = cf->args->elts;
3306
3307 for (i = 1; i < cf->args->nelts; i++) {
3308 for (name = ngx_methods_names; name->name; name++) {
3309
3310 if (ngx_strcasecmp(value[i].data, name->name) == 0) {
3311 pclcf->limit_except &= name->method;
3312 goto next;
3313 }
3314 }
3315
3316 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3317 "invalid method \"%V\"", &value[i]);
3318 return NGX_CONF_ERROR;
3319
3320 next:
3321 continue;
3322 }
3323
3324 if (!(pclcf->limit_except & NGX_HTTP_GET)) {
3325 pclcf->limit_except &= (uint32_t) ~NGX_HTTP_HEAD;
3326 }
3327
3328 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t));
3329 if (ctx == NULL) {
3330 return NGX_CONF_ERROR;
3331 }
3332
3333 pctx = cf->ctx;
3334 ctx->main_conf = pctx->main_conf;
3335 ctx->srv_conf = pctx->srv_conf;
3336
3337 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
3338 if (ctx->loc_conf == NULL) {
3339 return NGX_CONF_ERROR;
3340 }
3341
3342 for (i = 0; ngx_modules[i]; i++) {
3343 if (ngx_modules[i]->type != NGX_HTTP_MODULE) {
3344 continue;
3345 }
3346
3347 module = ngx_modules[i]->ctx;
3348
3349 if (module->create_loc_conf) {
3350
3351 mconf = module->create_loc_conf(cf);
3352 if (mconf == NULL) {
3353 return NGX_CONF_ERROR;
3354 }
3355
3356 ctx->loc_conf[ngx_modules[i]->ctx_index] = mconf;
3357 }
3358 }
3359
3360
3361 clcf = ctx->loc_conf[ngx_http_core_module.ctx_index];
3362 pclcf->limit_except_loc_conf = ctx->loc_conf;
3363 clcf->loc_conf = ctx->loc_conf;
3364 clcf->name = pclcf->name;
3365 clcf->noname = 1;
3366
3367 if (ngx_http_add_location(cf, &pclcf->locations, clcf) != NGX_OK) {
3368 return NGX_CONF_ERROR;
3369 }
3370
3371 save = *cf;
3372 cf->ctx = ctx;
3373 cf->cmd_type = NGX_HTTP_LMT_CONF;
3374
3375 rv = ngx_conf_parse(cf, NULL);
3376
3377 *cf = save;
3378
3379 return rv;
3380 }
3381
3382
3383 static char *
3384 ngx_http_core_directio(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3385 {
3386 ngx_http_core_loc_conf_t *clcf = conf;
3387
3388 ngx_str_t *value;
3389
3390 if (clcf->directio != NGX_CONF_UNSET) {
3391 return "is duplicate";
3392 }
3393
3394 value = cf->args->elts;
3395
3396 if (ngx_strcmp(value[1].data, "off") == 0) {
3397 clcf->directio = NGX_MAX_OFF_T_VALUE;
3398 return NGX_CONF_OK;
3399 }
3400
3401 clcf->directio = ngx_parse_offset(&value[1]);
3402 if (clcf->directio == (off_t) NGX_ERROR) {
3403 return "invalid value";
3404 }
3405
3406 return NGX_CONF_OK;
3407 }
3408
3409
3410 static char *
3411 ngx_http_core_error_page(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3412 {
3413 ngx_http_core_loc_conf_t *lcf = conf;
3414
3415 u_char *args;
3416 ngx_int_t overwrite;
3417 ngx_str_t *value, uri;
3418 ngx_uint_t i, n, nvar;
3419 ngx_array_t *uri_lengths, *uri_values;
3420 ngx_http_err_page_t *err;
3421 ngx_http_script_compile_t sc;
3422
3423 if (lcf->error_pages == NULL) {
3424 lcf->error_pages = ngx_array_create(cf->pool, 4,
3425 sizeof(ngx_http_err_page_t));
3426 if (lcf->error_pages == NULL) {
3427 return NGX_CONF_ERROR;
3428 }
3429 }
3430
3431 value = cf->args->elts;
3432
3433 i = cf->args->nelts - 2;
3434
3435 if (value[i].data[0] == '=') {
3436 if (i == 1) {
3437 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3438 "invalid value \"%V\"", &value[i]);
3439 return NGX_CONF_ERROR;
3440 }
3441
3442 if (value[i].len > 1) {
3443 overwrite = ngx_atoi(&value[i].data[1], value[i].len - 1);
3444
3445 if (overwrite == NGX_ERROR) {
3446 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3447 "invalid value \"%V\"", &value[i]);
3448 return NGX_CONF_ERROR;
3449 }
3450
3451 } else {
3452 overwrite = 0;
3453 }
3454
3455 n = 2;
3456
3457 } else {
3458 overwrite = -1;
3459 n = 1;
3460 }
3461
3462 uri = value[cf->args->nelts - 1];
3463 uri_lengths = NULL;
3464 uri_values = NULL;
3465
3466 nvar = ngx_http_script_variables_count(&uri);
3467
3468 if (nvar) {
3469 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
3470
3471 sc.cf = cf;
3472 sc.source = &uri;
3473 sc.lengths = &uri_lengths;
3474 sc.values = &uri_values;
3475 sc.variables = nvar;
3476 sc.complete_lengths = 1;
3477 sc.complete_values = 1;
3478
3479 if (ngx_http_script_compile(&sc) != NGX_OK) {
3480 return NGX_CONF_ERROR;
3481 }
3482 }
3483
3484 args = (u_char *) ngx_strchr(uri.data, '?');
3485
3486 for (i = 1; i < cf->args->nelts - n; i++) {
3487 err = ngx_array_push(lcf->error_pages);
3488 if (err == NULL) {
3489 return NGX_CONF_ERROR;
3490 }
3491
3492 err->status = ngx_atoi(value[i].data, value[i].len);
3493
3494 if (err->status == NGX_ERROR || err->status == 499) {
3495 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3496 "invalid value \"%V\"", &value[i]);
3497 return NGX_CONF_ERROR;
3498 }
3499
3500 if (err->status < 400 || err->status > 599) {
3501 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3502 "value \"%V\" must be between 400 and 599",
3503 &value[i]);
3504 return NGX_CONF_ERROR;
3505 }
3506
3507 if (overwrite >= 0) {
3508 err->overwrite = overwrite;
3509
3510 } else {
3511 switch (err->status) {
3512 case NGX_HTTP_TO_HTTPS:
3513 case NGX_HTTPS_CERT_ERROR:
3514 case NGX_HTTPS_NO_CERT:
3515 err->overwrite = NGX_HTTP_BAD_REQUEST;
3516 break;
3517
3518 default:
3519 err->overwrite = err->status;
3520 break;
3521 }
3522 }
3523
3524 if (args) {
3525 err->uri.len = args - uri.data;
3526 err->uri.data = uri.data;
3527 args++;
3528 err->args.len = (uri.data + uri.len) - args;
3529 err->args.data = args;
3530
3531 } else {
3532 err->uri = uri;
3533 err->args.len = 0;
3534 err->args.data = NULL;
3535 }
3536
3537 err->uri_lengths = uri_lengths;
3538 err->uri_values = uri_values;
3539 }
3540
3541 return NGX_CONF_OK;
3542 }
3543
3544
3545 static char *
3546 ngx_http_core_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3547 {
3548 ngx_http_core_loc_conf_t *lcf = conf;
3549
3550 time_t inactive;
3551 ngx_str_t *value, s;
3552 ngx_int_t max;
3553 ngx_uint_t i;
3554
3555 if (lcf->open_file_cache != NGX_CONF_UNSET_PTR) {
3556 return "is duplicate";
3557 }
3558
3559 value = cf->args->elts;
3560
3561 max = 0;
3562 inactive = 60;
3563
3564 for (i = 1; i < cf->args->nelts; i++) {
3565
3566 if (ngx_strncmp(value[i].data, "max=", 4) == 0) {
3567
3568 max = ngx_atoi(value[i].data + 4, value[i].len - 4);
3569 if (max == NGX_ERROR) {
3570 goto failed;
3571 }
3572
3573 continue;
3574 }
3575
3576 if (ngx_strncmp(value[i].data, "inactive=", 9) == 0) {
3577
3578 s.len = value[i].len - 9;
3579 s.data = value[i].data + 9;
3580
3581 inactive = ngx_parse_time(&s, 1);
3582 if (inactive < 0) {
3583 goto failed;
3584 }
3585
3586 continue;
3587 }
3588
3589 if (ngx_strcmp(value[i].data, "off") == 0) {
3590
3591 lcf->open_file_cache = NULL;
3592
3593 continue;
3594 }
3595
3596 failed:
3597
3598 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3599 "invalid \"open_file_cache\" parameter \"%V\"",
3600 &value[i]);
3601 return NGX_CONF_ERROR;
3602 }
3603
3604 if (lcf->open_file_cache == NULL) {
3605 return NGX_CONF_OK;
3606 }
3607
3608 if (max == 0) {
3609 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3610 "\"open_file_cache\" must have \"max\" parameter");
3611 return NGX_CONF_ERROR;
3612 }
3613
3614 lcf->open_file_cache = ngx_open_file_cache_init(cf->pool, max, inactive);
3615 if (lcf->open_file_cache) {
3616 return NGX_CONF_OK;
3617 }
3618
3619 return NGX_CONF_ERROR;
3620 }
3621
3622
3623 static char *
3624 ngx_http_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3625 {
3626 ngx_http_core_loc_conf_t *lcf = conf;
3627
3628 lcf->err_log = ngx_log_create_errlog(cf->cycle, cf->args);
3629 if (lcf->err_log == NULL) {
3630 return NGX_CONF_ERROR;
3631 }
3632
3633 return ngx_set_error_log_levels(cf, lcf->err_log);
3634 }
3635
3636
3637 static char *
3638 ngx_http_core_keepalive(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3639 {
3640 ngx_http_core_loc_conf_t *lcf = conf;
3641
3642 ngx_str_t *value;
3643
3644 if (lcf->keepalive_timeout != NGX_CONF_UNSET_MSEC) {
3645 return "is duplicate";
3646 }
3647
3648 value = cf->args->elts;
3649
3650 lcf->keepalive_timeout = ngx_parse_time(&value[1], 0);
3651
3652 if (lcf->keepalive_timeout == (ngx_msec_t) NGX_ERROR) {
3653 return "invalid value";
3654 }
3655
3656 if (lcf->keepalive_timeout == (ngx_msec_t) NGX_PARSE_LARGE_TIME) {
3657 return "value must be less than 597 hours";
3658 }
3659
3660 if (cf->args->nelts == 2) {
3661 return NGX_CONF_OK;
3662 }
3663
3664 lcf->keepalive_header = ngx_parse_time(&value[2], 1);
3665
3666 if (lcf->keepalive_header == NGX_ERROR) {
3667 return "invalid value";
3668 }
3669
3670 if (lcf->keepalive_header == NGX_PARSE_LARGE_TIME) {
3671 return "value must be less than 68 years";
3672 }
3673
3674 return NGX_CONF_OK;
3675 }
3676
3677
3678 static char *
3679 ngx_http_core_internal(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3680 {
3681 ngx_http_core_loc_conf_t *lcf = conf;
3682
3683 if (lcf->internal != NGX_CONF_UNSET) {
3684 return "is duplicate";
3685 }
3686
3687 lcf->internal = 1;
3688
3689 return NGX_CONF_OK;
3690 }
3691
3692
3693 static char *
3694 ngx_http_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3695 {
3696 ngx_http_core_loc_conf_t *clcf = conf;
3697
3698 ngx_url_t u;
3699 ngx_str_t *value;
3700
3701 if (clcf->resolver) {
3702 return "is duplicate";
3703 }
3704
3705 value = cf->args->elts;
3706
3707 ngx_memzero(&u, sizeof(ngx_url_t));
3708
3709 u.host = value[1];
3710 u.port = 53;
3711
3712 if (ngx_inet_resolve_host(cf->pool, &u) != NGX_OK) {
3713 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%V: %s", &u.host, u.err);
3714 return NGX_CONF_ERROR;
3715 }
3716
3717 clcf->resolver = ngx_resolver_create(cf, &u.addrs[0]);
3718 if (clcf->resolver == NULL) {
3719 return NGX_OK;
3720 }
3721
3722 return NGX_CONF_OK;
3723 }
3724
3725
3726 #if (NGX_HTTP_GZIP)
3727
3728 static char *
3729 ngx_http_gzip_disable(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3730 {
3731 #if (NGX_PCRE)
3732 ngx_http_core_loc_conf_t *clcf = conf;
3733
3734 ngx_str_t err, *value;
3735 ngx_uint_t i;
3736 ngx_regex_elt_t *re;
3737 u_char errstr[NGX_MAX_CONF_ERRSTR];
3738
3739 if (clcf->gzip_disable == NGX_CONF_UNSET_PTR) {
3740 clcf->gzip_disable = ngx_array_create(cf->pool, 2,
3741 sizeof(ngx_regex_elt_t));
3742 if (clcf->gzip_disable == NULL) {
3743 return NGX_CONF_ERROR;
3744 }
3745 }
3746
3747 value = cf->args->elts;
3748
3749 err.len = NGX_MAX_CONF_ERRSTR;
3750 err.data = errstr;
3751
3752 for (i = 1; i < cf->args->nelts; i++) {
3753
3754 re = ngx_array_push(clcf->gzip_disable);
3755 if (re == NULL) {
3756 return NGX_CONF_ERROR;
3757 }
3758
3759 re->regex = ngx_regex_compile(&value[i], NGX_REGEX_CASELESS, cf->pool,
3760 &err);
3761
3762 if (re->regex == NULL) {
3763 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s", err.data);
3764 return NGX_CONF_ERROR;
3765 }
3766
3767 re->name = value[i].data;
3768 }
3769
3770 return NGX_CONF_OK;
3771
3772 #else
3773 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3774 "\"gzip_disable\" requires PCRE library");
3775
3776 return NGX_CONF_ERROR;
3777 #endif
3778 }
3779
3780 #endif
3781
3782
3783 static char *
3784 ngx_http_core_lowat_check(ngx_conf_t *cf, void *post, void *data)
3785 {
3786 #if (NGX_FREEBSD)
3787 ssize_t *np = data;
3788
3789 if ((u_long) *np >= ngx_freebsd_net_inet_tcp_sendspace) {
3790 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3791 "\"send_lowat\" must be less than %d "
3792 "(sysctl net.inet.tcp.sendspace)",
3793 ngx_freebsd_net_inet_tcp_sendspace);
3794
3795 return NGX_CONF_ERROR;
3796 }
3797
3798 #elif !(NGX_HAVE_SO_SNDLOWAT)
3799 ssize_t *np = data;
3800
3801 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
3802 "\"send_lowat\" is not supported, ignored");
3803
3804 *np = 0;
3805
3806 #endif
3807
3808 return NGX_CONF_OK;
3809 }
3810
3811
3812 static char *
3813 ngx_http_core_pool_size(ngx_conf_t *cf, void *post, void *data)
3814 {
3815 size_t *sp = data;
3816
3817 if (*sp < NGX_MIN_POOL_SIZE) {
3818 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3819 "pool must be no less than %uz", NGX_MIN_POOL_SIZE);
3820
3821 return NGX_CONF_ERROR;
3822 }
3823
3824 return NGX_CONF_OK;
3825 }
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