1
2 /*
3 * Copyright (C) Igor Sysoev
4 */
5
6
7 #include <ngx_config.h>
8 #include <ngx_core.h>
9 #include <ngx_http.h>
10
11
12 typedef struct {
13 u_char *name;
14 uint32_t method;
15 } ngx_http_method_name_t;
16
17
18 #define NGX_HTTP_REQUEST_BODY_FILE_OFF 0
19 #define NGX_HTTP_REQUEST_BODY_FILE_ON 1
20 #define NGX_HTTP_REQUEST_BODY_FILE_CLEAN 2
21
22
23 static ngx_int_t ngx_http_core_find_location(ngx_http_request_t *r);
24 static ngx_int_t ngx_http_core_find_static_location(ngx_http_request_t *r,
25 ngx_http_location_tree_node_t *node);
26
27 static ngx_int_t ngx_http_core_preconfiguration(ngx_conf_t *cf);
28 static void *ngx_http_core_create_main_conf(ngx_conf_t *cf);
29 static char *ngx_http_core_init_main_conf(ngx_conf_t *cf, void *conf);
30 static void *ngx_http_core_create_srv_conf(ngx_conf_t *cf);
31 static char *ngx_http_core_merge_srv_conf(ngx_conf_t *cf,
32 void *parent, void *child);
33 static void *ngx_http_core_create_loc_conf(ngx_conf_t *cf);
34 static char *ngx_http_core_merge_loc_conf(ngx_conf_t *cf,
35 void *parent, void *child);
36
37 static char *ngx_http_core_server(ngx_conf_t *cf, ngx_command_t *cmd,
38 void *dummy);
39 static char *ngx_http_core_location(ngx_conf_t *cf, ngx_command_t *cmd,
40 void *dummy);
41 static ngx_int_t ngx_http_core_regex_location(ngx_conf_t *cf,
42 ngx_http_core_loc_conf_t *clcf, ngx_str_t *regex, ngx_uint_t caseless);
43
44 static char *ngx_http_core_types(ngx_conf_t *cf, ngx_command_t *cmd,
45 void *conf);
46 static char *ngx_http_core_type(ngx_conf_t *cf, ngx_command_t *dummy,
47 void *conf);
48
49 static char *ngx_http_core_listen(ngx_conf_t *cf, ngx_command_t *cmd,
50 void *conf);
51 static char *ngx_http_core_server_name(ngx_conf_t *cf, ngx_command_t *cmd,
52 void *conf);
53 static char *ngx_http_core_root(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
54 static char *ngx_http_core_limit_except(ngx_conf_t *cf, ngx_command_t *cmd,
55 void *conf);
56 static char *ngx_http_core_directio(ngx_conf_t *cf, ngx_command_t *cmd,
57 void *conf);
58 static char *ngx_http_core_error_page(ngx_conf_t *cf, ngx_command_t *cmd,
59 void *conf);
60 static char *ngx_http_core_try_files(ngx_conf_t *cf, ngx_command_t *cmd,
61 void *conf);
62 static char *ngx_http_core_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd,
63 void *conf);
64 static char *ngx_http_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd,
65 void *conf);
66 static char *ngx_http_core_keepalive(ngx_conf_t *cf, ngx_command_t *cmd,
67 void *conf);
68 static char *ngx_http_core_internal(ngx_conf_t *cf, ngx_command_t *cmd,
69 void *conf);
70 static char *ngx_http_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd,
71 void *conf);
72 #if (NGX_HTTP_GZIP)
73 static char *ngx_http_gzip_disable(ngx_conf_t *cf, ngx_command_t *cmd,
74 void *conf);
75 #endif
76
77 static char *ngx_http_core_lowat_check(ngx_conf_t *cf, void *post, void *data);
78 static char *ngx_http_core_pool_size(ngx_conf_t *cf, void *post, void *data);
79
80 static ngx_conf_post_t ngx_http_core_lowat_post =
81 { ngx_http_core_lowat_check };
82
83 static ngx_conf_post_handler_pt ngx_http_core_pool_size_p =
84 ngx_http_core_pool_size;
85
86 static ngx_conf_deprecated_t ngx_conf_deprecated_optimize_server_names = {
87 ngx_conf_deprecated, "optimize_server_names", "server_name_in_redirect"
88 };
89
90 static ngx_conf_deprecated_t ngx_conf_deprecated_open_file_cache_retest = {
91 ngx_conf_deprecated, "open_file_cache_retest", "open_file_cache_valid"
92 };
93
94 static ngx_conf_deprecated_t ngx_conf_deprecated_satisfy_any = {
95 ngx_conf_deprecated, "satisfy_any", "satisfy"
96 };
97
98
99 static ngx_conf_enum_t ngx_http_core_request_body_in_file[] = {
100 { ngx_string("off"), NGX_HTTP_REQUEST_BODY_FILE_OFF },
101 { ngx_string("on"), NGX_HTTP_REQUEST_BODY_FILE_ON },
102 { ngx_string("clean"), NGX_HTTP_REQUEST_BODY_FILE_CLEAN },
103 { ngx_null_string, 0 }
104 };
105
106
107 #if (NGX_HAVE_FILE_AIO)
108
109 static ngx_conf_enum_t ngx_http_core_aio[] = {
110 { ngx_string("off"), NGX_HTTP_AIO_OFF },
111 { ngx_string("on"), NGX_HTTP_AIO_ON },
112 #if (NGX_HAVE_AIO_SENDFILE)
113 { ngx_string("sendfile"), NGX_HTTP_AIO_SENDFILE },
114 #endif
115 { ngx_null_string, 0 }
116 };
117
118 #endif
119
120
121 static ngx_conf_enum_t ngx_http_core_satisfy[] = {
122 { ngx_string("all"), NGX_HTTP_SATISFY_ALL },
123 { ngx_string("any"), NGX_HTTP_SATISFY_ANY },
124 { ngx_null_string, 0 }
125 };
126
127
128 static ngx_conf_enum_t ngx_http_core_if_modified_since[] = {
129 { ngx_string("off"), NGX_HTTP_IMS_OFF },
130 { ngx_string("exact"), NGX_HTTP_IMS_EXACT },
131 { ngx_string("before"), NGX_HTTP_IMS_BEFORE },
132 { ngx_null_string, 0 }
133 };
134
135
136 static ngx_path_init_t ngx_http_client_temp_path = {
137 ngx_string(NGX_HTTP_CLIENT_TEMP_PATH), { 0, 0, 0 }
138 };
139
140
141 #if (NGX_HTTP_GZIP)
142
143 static ngx_conf_enum_t ngx_http_gzip_http_version[] = {
144 { ngx_string("1.0"), NGX_HTTP_VERSION_10 },
145 { ngx_string("1.1"), NGX_HTTP_VERSION_11 },
146 { ngx_null_string, 0 }
147 };
148
149
150 static ngx_conf_bitmask_t ngx_http_gzip_proxied_mask[] = {
151 { ngx_string("off"), NGX_HTTP_GZIP_PROXIED_OFF },
152 { ngx_string("expired"), NGX_HTTP_GZIP_PROXIED_EXPIRED },
153 { ngx_string("no-cache"), NGX_HTTP_GZIP_PROXIED_NO_CACHE },
154 { ngx_string("no-store"), NGX_HTTP_GZIP_PROXIED_NO_STORE },
155 { ngx_string("private"), NGX_HTTP_GZIP_PROXIED_PRIVATE },
156 { ngx_string("no_last_modified"), NGX_HTTP_GZIP_PROXIED_NO_LM },
157 { ngx_string("no_etag"), NGX_HTTP_GZIP_PROXIED_NO_ETAG },
158 { ngx_string("auth"), NGX_HTTP_GZIP_PROXIED_AUTH },
159 { ngx_string("any"), NGX_HTTP_GZIP_PROXIED_ANY },
160 { ngx_null_string, 0 }
161 };
162
163
164 static ngx_str_t ngx_http_gzip_no_cache = ngx_string("no-cache");
165 static ngx_str_t ngx_http_gzip_no_store = ngx_string("no-store");
166 static ngx_str_t ngx_http_gzip_private = ngx_string("private");
167
168 #endif
169
170
171 static ngx_command_t ngx_http_core_commands[] = {
172
173 { ngx_string("variables_hash_max_size"),
174 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1,
175 ngx_conf_set_num_slot,
176 NGX_HTTP_MAIN_CONF_OFFSET,
177 offsetof(ngx_http_core_main_conf_t, variables_hash_max_size),
178 NULL },
179
180 { ngx_string("variables_hash_bucket_size"),
181 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1,
182 ngx_conf_set_num_slot,
183 NGX_HTTP_MAIN_CONF_OFFSET,
184 offsetof(ngx_http_core_main_conf_t, variables_hash_bucket_size),
185 NULL },
186
187 { ngx_string("server_names_hash_max_size"),
188 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1,
189 ngx_conf_set_num_slot,
190 NGX_HTTP_MAIN_CONF_OFFSET,
191 offsetof(ngx_http_core_main_conf_t, server_names_hash_max_size),
192 NULL },
193
194 { ngx_string("server_names_hash_bucket_size"),
195 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1,
196 ngx_conf_set_num_slot,
197 NGX_HTTP_MAIN_CONF_OFFSET,
198 offsetof(ngx_http_core_main_conf_t, server_names_hash_bucket_size),
199 NULL },
200
201 { ngx_string("server"),
202 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_MULTI|NGX_CONF_NOARGS,
203 ngx_http_core_server,
204 0,
205 0,
206 NULL },
207
208 { ngx_string("connection_pool_size"),
209 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
210 ngx_conf_set_size_slot,
211 NGX_HTTP_SRV_CONF_OFFSET,
212 offsetof(ngx_http_core_srv_conf_t, connection_pool_size),
213 &ngx_http_core_pool_size_p },
214
215 { ngx_string("request_pool_size"),
216 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
217 ngx_conf_set_size_slot,
218 NGX_HTTP_SRV_CONF_OFFSET,
219 offsetof(ngx_http_core_srv_conf_t, request_pool_size),
220 &ngx_http_core_pool_size_p },
221
222 { ngx_string("client_header_timeout"),
223 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
224 ngx_conf_set_msec_slot,
225 NGX_HTTP_SRV_CONF_OFFSET,
226 offsetof(ngx_http_core_srv_conf_t, client_header_timeout),
227 NULL },
228
229 { ngx_string("client_header_buffer_size"),
230 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
231 ngx_conf_set_size_slot,
232 NGX_HTTP_SRV_CONF_OFFSET,
233 offsetof(ngx_http_core_srv_conf_t, client_header_buffer_size),
234 NULL },
235
236 { ngx_string("large_client_header_buffers"),
237 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE2,
238 ngx_conf_set_bufs_slot,
239 NGX_HTTP_SRV_CONF_OFFSET,
240 offsetof(ngx_http_core_srv_conf_t, large_client_header_buffers),
241 NULL },
242
243 { ngx_string("optimize_server_names"),
244 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
245 ngx_conf_set_flag_slot,
246 NGX_HTTP_LOC_CONF_OFFSET,
247 offsetof(ngx_http_core_loc_conf_t, server_name_in_redirect),
248 &ngx_conf_deprecated_optimize_server_names },
249
250 { ngx_string("ignore_invalid_headers"),
251 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
252 ngx_conf_set_flag_slot,
253 NGX_HTTP_SRV_CONF_OFFSET,
254 offsetof(ngx_http_core_srv_conf_t, ignore_invalid_headers),
255 NULL },
256
257 { ngx_string("merge_slashes"),
258 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
259 ngx_conf_set_flag_slot,
260 NGX_HTTP_SRV_CONF_OFFSET,
261 offsetof(ngx_http_core_srv_conf_t, merge_slashes),
262 NULL },
263
264 { ngx_string("underscores_in_headers"),
265 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
266 ngx_conf_set_flag_slot,
267 NGX_HTTP_SRV_CONF_OFFSET,
268 offsetof(ngx_http_core_srv_conf_t, underscores_in_headers),
269 NULL },
270
271 { ngx_string("location"),
272 NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE12,
273 ngx_http_core_location,
274 NGX_HTTP_SRV_CONF_OFFSET,
275 0,
276 NULL },
277
278 { ngx_string("listen"),
279 NGX_HTTP_SRV_CONF|NGX_CONF_1MORE,
280 ngx_http_core_listen,
281 NGX_HTTP_SRV_CONF_OFFSET,
282 0,
283 NULL },
284
285 { ngx_string("server_name"),
286 NGX_HTTP_SRV_CONF|NGX_CONF_1MORE,
287 ngx_http_core_server_name,
288 NGX_HTTP_SRV_CONF_OFFSET,
289 0,
290 NULL },
291
292 { ngx_string("types_hash_max_size"),
293 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
294 ngx_conf_set_num_slot,
295 NGX_HTTP_LOC_CONF_OFFSET,
296 offsetof(ngx_http_core_loc_conf_t, types_hash_max_size),
297 NULL },
298
299 { ngx_string("types_hash_bucket_size"),
300 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
301 ngx_conf_set_num_slot,
302 NGX_HTTP_LOC_CONF_OFFSET,
303 offsetof(ngx_http_core_loc_conf_t, types_hash_bucket_size),
304 NULL },
305
306 { ngx_string("types"),
307 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF
308 |NGX_CONF_BLOCK|NGX_CONF_NOARGS,
309 ngx_http_core_types,
310 NGX_HTTP_LOC_CONF_OFFSET,
311 0,
312 NULL },
313
314 { ngx_string("default_type"),
315 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
316 ngx_conf_set_str_slot,
317 NGX_HTTP_LOC_CONF_OFFSET,
318 offsetof(ngx_http_core_loc_conf_t, default_type),
319 NULL },
320
321 { ngx_string("root"),
322 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
323 |NGX_CONF_TAKE1,
324 ngx_http_core_root,
325 NGX_HTTP_LOC_CONF_OFFSET,
326 0,
327 NULL },
328
329 { ngx_string("alias"),
330 NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
331 ngx_http_core_root,
332 NGX_HTTP_LOC_CONF_OFFSET,
333 0,
334 NULL },
335
336 { ngx_string("limit_except"),
337 NGX_HTTP_LOC_CONF|NGX_CONF_BLOCK|NGX_CONF_1MORE,
338 ngx_http_core_limit_except,
339 NGX_HTTP_LOC_CONF_OFFSET,
340 0,
341 NULL },
342
343 { ngx_string("client_max_body_size"),
344 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
345 ngx_conf_set_off_slot,
346 NGX_HTTP_LOC_CONF_OFFSET,
347 offsetof(ngx_http_core_loc_conf_t, client_max_body_size),
348 NULL },
349
350 { ngx_string("client_body_buffer_size"),
351 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
352 ngx_conf_set_size_slot,
353 NGX_HTTP_LOC_CONF_OFFSET,
354 offsetof(ngx_http_core_loc_conf_t, client_body_buffer_size),
355 NULL },
356
357 { ngx_string("client_body_timeout"),
358 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
359 ngx_conf_set_msec_slot,
360 NGX_HTTP_LOC_CONF_OFFSET,
361 offsetof(ngx_http_core_loc_conf_t, client_body_timeout),
362 NULL },
363
364 { ngx_string("client_body_temp_path"),
365 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234,
366 ngx_conf_set_path_slot,
367 NGX_HTTP_LOC_CONF_OFFSET,
368 offsetof(ngx_http_core_loc_conf_t, client_body_temp_path),
369 NULL },
370
371 { ngx_string("client_body_in_file_only"),
372 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
373 ngx_conf_set_enum_slot,
374 NGX_HTTP_LOC_CONF_OFFSET,
375 offsetof(ngx_http_core_loc_conf_t, client_body_in_file_only),
376 &ngx_http_core_request_body_in_file },
377
378 { ngx_string("client_body_in_single_buffer"),
379 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
380 ngx_conf_set_flag_slot,
381 NGX_HTTP_LOC_CONF_OFFSET,
382 offsetof(ngx_http_core_loc_conf_t, client_body_in_single_buffer),
383 NULL },
384
385 { ngx_string("sendfile"),
386 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
387 |NGX_CONF_TAKE1,
388 ngx_conf_set_flag_slot,
389 NGX_HTTP_LOC_CONF_OFFSET,
390 offsetof(ngx_http_core_loc_conf_t, sendfile),
391 NULL },
392
393 { ngx_string("sendfile_max_chunk"),
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, sendfile_max_chunk),
398 NULL },
399
400 #if (NGX_HAVE_FILE_AIO)
401
402 { ngx_string("aio"),
403 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
404 ngx_conf_set_enum_slot,
405 NGX_HTTP_LOC_CONF_OFFSET,
406 offsetof(ngx_http_core_loc_conf_t, aio),
407 &ngx_http_core_aio },
408
409 #endif
410
411 { ngx_string("read_ahead"),
412 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
413 ngx_conf_set_size_slot,
414 NGX_HTTP_LOC_CONF_OFFSET,
415 offsetof(ngx_http_core_loc_conf_t, read_ahead),
416 NULL },
417
418 { ngx_string("directio"),
419 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
420 ngx_http_core_directio,
421 NGX_HTTP_LOC_CONF_OFFSET,
422 0,
423 NULL },
424
425 { ngx_string("directio_alignment"),
426 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
427 ngx_conf_set_off_slot,
428 NGX_HTTP_LOC_CONF_OFFSET,
429 offsetof(ngx_http_core_loc_conf_t, directio_alignment),
430 NULL },
431
432 { ngx_string("tcp_nopush"),
433 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
434 ngx_conf_set_flag_slot,
435 NGX_HTTP_LOC_CONF_OFFSET,
436 offsetof(ngx_http_core_loc_conf_t, tcp_nopush),
437 NULL },
438
439 { ngx_string("tcp_nodelay"),
440 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
441 ngx_conf_set_flag_slot,
442 NGX_HTTP_LOC_CONF_OFFSET,
443 offsetof(ngx_http_core_loc_conf_t, tcp_nodelay),
444 NULL },
445
446 { ngx_string("send_timeout"),
447 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
448 ngx_conf_set_msec_slot,
449 NGX_HTTP_LOC_CONF_OFFSET,
450 offsetof(ngx_http_core_loc_conf_t, send_timeout),
451 NULL },
452
453 { ngx_string("send_lowat"),
454 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
455 ngx_conf_set_size_slot,
456 NGX_HTTP_LOC_CONF_OFFSET,
457 offsetof(ngx_http_core_loc_conf_t, send_lowat),
458 &ngx_http_core_lowat_post },
459
460 { ngx_string("postpone_output"),
461 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
462 ngx_conf_set_size_slot,
463 NGX_HTTP_LOC_CONF_OFFSET,
464 offsetof(ngx_http_core_loc_conf_t, postpone_output),
465 NULL },
466
467 { ngx_string("limit_rate"),
468 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
469 |NGX_CONF_TAKE1,
470 ngx_conf_set_size_slot,
471 NGX_HTTP_LOC_CONF_OFFSET,
472 offsetof(ngx_http_core_loc_conf_t, limit_rate),
473 NULL },
474
475 { ngx_string("limit_rate_after"),
476 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
477 |NGX_CONF_TAKE1,
478 ngx_conf_set_size_slot,
479 NGX_HTTP_LOC_CONF_OFFSET,
480 offsetof(ngx_http_core_loc_conf_t, limit_rate_after),
481 NULL },
482
483 { ngx_string("keepalive_timeout"),
484 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12,
485 ngx_http_core_keepalive,
486 NGX_HTTP_LOC_CONF_OFFSET,
487 0,
488 NULL },
489
490 { ngx_string("keepalive_requests"),
491 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
492 ngx_conf_set_num_slot,
493 NGX_HTTP_LOC_CONF_OFFSET,
494 offsetof(ngx_http_core_loc_conf_t, keepalive_requests),
495 NULL },
496
497 { ngx_string("satisfy"),
498 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
499 ngx_conf_set_enum_slot,
500 NGX_HTTP_LOC_CONF_OFFSET,
501 offsetof(ngx_http_core_loc_conf_t, satisfy),
502 &ngx_http_core_satisfy },
503
504 { ngx_string("satisfy_any"),
505 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
506 ngx_conf_set_flag_slot,
507 NGX_HTTP_LOC_CONF_OFFSET,
508 offsetof(ngx_http_core_loc_conf_t, satisfy),
509 &ngx_conf_deprecated_satisfy_any },
510
511 { ngx_string("internal"),
512 NGX_HTTP_LOC_CONF|NGX_CONF_NOARGS,
513 ngx_http_core_internal,
514 NGX_HTTP_LOC_CONF_OFFSET,
515 0,
516 NULL },
517
518 { ngx_string("lingering_time"),
519 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
520 ngx_conf_set_msec_slot,
521 NGX_HTTP_LOC_CONF_OFFSET,
522 offsetof(ngx_http_core_loc_conf_t, lingering_time),
523 NULL },
524
525 { ngx_string("lingering_timeout"),
526 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
527 ngx_conf_set_msec_slot,
528 NGX_HTTP_LOC_CONF_OFFSET,
529 offsetof(ngx_http_core_loc_conf_t, lingering_timeout),
530 NULL },
531
532 { ngx_string("reset_timedout_connection"),
533 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
534 ngx_conf_set_flag_slot,
535 NGX_HTTP_LOC_CONF_OFFSET,
536 offsetof(ngx_http_core_loc_conf_t, reset_timedout_connection),
537 NULL },
538
539 { ngx_string("server_name_in_redirect"),
540 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
541 ngx_conf_set_flag_slot,
542 NGX_HTTP_LOC_CONF_OFFSET,
543 offsetof(ngx_http_core_loc_conf_t, server_name_in_redirect),
544 NULL },
545
546 { ngx_string("port_in_redirect"),
547 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
548 ngx_conf_set_flag_slot,
549 NGX_HTTP_LOC_CONF_OFFSET,
550 offsetof(ngx_http_core_loc_conf_t, port_in_redirect),
551 NULL },
552
553 { ngx_string("msie_padding"),
554 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
555 ngx_conf_set_flag_slot,
556 NGX_HTTP_LOC_CONF_OFFSET,
557 offsetof(ngx_http_core_loc_conf_t, msie_padding),
558 NULL },
559
560 { ngx_string("msie_refresh"),
561 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
562 ngx_conf_set_flag_slot,
563 NGX_HTTP_LOC_CONF_OFFSET,
564 offsetof(ngx_http_core_loc_conf_t, msie_refresh),
565 NULL },
566
567 { ngx_string("log_not_found"),
568 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
569 ngx_conf_set_flag_slot,
570 NGX_HTTP_LOC_CONF_OFFSET,
571 offsetof(ngx_http_core_loc_conf_t, log_not_found),
572 NULL },
573
574 { ngx_string("log_subrequest"),
575 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
576 ngx_conf_set_flag_slot,
577 NGX_HTTP_LOC_CONF_OFFSET,
578 offsetof(ngx_http_core_loc_conf_t, log_subrequest),
579 NULL },
580
581 { ngx_string("recursive_error_pages"),
582 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
583 ngx_conf_set_flag_slot,
584 NGX_HTTP_LOC_CONF_OFFSET,
585 offsetof(ngx_http_core_loc_conf_t, recursive_error_pages),
586 NULL },
587
588 { ngx_string("server_tokens"),
589 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
590 ngx_conf_set_flag_slot,
591 NGX_HTTP_LOC_CONF_OFFSET,
592 offsetof(ngx_http_core_loc_conf_t, server_tokens),
593 NULL },
594
595 { ngx_string("if_modified_since"),
596 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
597 ngx_conf_set_enum_slot,
598 NGX_HTTP_LOC_CONF_OFFSET,
599 offsetof(ngx_http_core_loc_conf_t, if_modified_since),
600 &ngx_http_core_if_modified_since },
601
602 { ngx_string("error_page"),
603 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
604 |NGX_CONF_2MORE,
605 ngx_http_core_error_page,
606 NGX_HTTP_LOC_CONF_OFFSET,
607 0,
608 NULL },
609
610 { ngx_string("try_files"),
611 NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_2MORE,
612 ngx_http_core_try_files,
613 NGX_HTTP_LOC_CONF_OFFSET,
614 0,
615 NULL },
616
617 { ngx_string("post_action"),
618 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
619 |NGX_CONF_TAKE1,
620 ngx_conf_set_str_slot,
621 NGX_HTTP_LOC_CONF_OFFSET,
622 offsetof(ngx_http_core_loc_conf_t, post_action),
623 NULL },
624
625 { ngx_string("error_log"),
626 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
627 ngx_http_core_error_log,
628 NGX_HTTP_LOC_CONF_OFFSET,
629 0,
630 NULL },
631
632 { ngx_string("open_file_cache"),
633 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12,
634 ngx_http_core_open_file_cache,
635 NGX_HTTP_LOC_CONF_OFFSET,
636 offsetof(ngx_http_core_loc_conf_t, open_file_cache),
637 NULL },
638
639 { ngx_string("open_file_cache_valid"),
640 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
641 ngx_conf_set_sec_slot,
642 NGX_HTTP_LOC_CONF_OFFSET,
643 offsetof(ngx_http_core_loc_conf_t, open_file_cache_valid),
644 NULL },
645
646 { ngx_string("open_file_cache_retest"),
647 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
648 ngx_conf_set_sec_slot,
649 NGX_HTTP_LOC_CONF_OFFSET,
650 offsetof(ngx_http_core_loc_conf_t, open_file_cache_valid),
651 &ngx_conf_deprecated_open_file_cache_retest },
652
653 { ngx_string("open_file_cache_min_uses"),
654 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
655 ngx_conf_set_num_slot,
656 NGX_HTTP_LOC_CONF_OFFSET,
657 offsetof(ngx_http_core_loc_conf_t, open_file_cache_min_uses),
658 NULL },
659
660 { ngx_string("open_file_cache_errors"),
661 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
662 ngx_conf_set_flag_slot,
663 NGX_HTTP_LOC_CONF_OFFSET,
664 offsetof(ngx_http_core_loc_conf_t, open_file_cache_errors),
665 NULL },
666
667 { ngx_string("open_file_cache_events"),
668 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
669 ngx_conf_set_flag_slot,
670 NGX_HTTP_LOC_CONF_OFFSET,
671 offsetof(ngx_http_core_loc_conf_t, open_file_cache_events),
672 NULL },
673
674 { ngx_string("resolver"),
675 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
676 ngx_http_core_resolver,
677 NGX_HTTP_LOC_CONF_OFFSET,
678 0,
679 NULL },
680
681 { ngx_string("resolver_timeout"),
682 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
683 ngx_conf_set_msec_slot,
684 NGX_HTTP_LOC_CONF_OFFSET,
685 offsetof(ngx_http_core_loc_conf_t, resolver_timeout),
686 NULL },
687
688 #if (NGX_HTTP_GZIP)
689
690 { ngx_string("gzip_vary"),
691 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
692 ngx_conf_set_flag_slot,
693 NGX_HTTP_LOC_CONF_OFFSET,
694 offsetof(ngx_http_core_loc_conf_t, gzip_vary),
695 NULL },
696
697 { ngx_string("gzip_http_version"),
698 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
699 ngx_conf_set_enum_slot,
700 NGX_HTTP_LOC_CONF_OFFSET,
701 offsetof(ngx_http_core_loc_conf_t, gzip_http_version),
702 &ngx_http_gzip_http_version },
703
704 { ngx_string("gzip_proxied"),
705 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
706 ngx_conf_set_bitmask_slot,
707 NGX_HTTP_LOC_CONF_OFFSET,
708 offsetof(ngx_http_core_loc_conf_t, gzip_proxied),
709 &ngx_http_gzip_proxied_mask },
710
711 { ngx_string("gzip_disable"),
712 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
713 ngx_http_gzip_disable,
714 NGX_HTTP_LOC_CONF_OFFSET,
715 0,
716 NULL },
717
718 #endif
719
720 ngx_null_command
721 };
722
723
724 static ngx_http_module_t ngx_http_core_module_ctx = {
725 ngx_http_core_preconfiguration, /* preconfiguration */
726 NULL, /* postconfiguration */
727
728 ngx_http_core_create_main_conf, /* create main configuration */
729 ngx_http_core_init_main_conf, /* init main configuration */
730
731 ngx_http_core_create_srv_conf, /* create server configuration */
732 ngx_http_core_merge_srv_conf, /* merge server configuration */
733
734 ngx_http_core_create_loc_conf, /* create location configuration */
735 ngx_http_core_merge_loc_conf /* merge location configuration */
736 };
737
738
739 ngx_module_t ngx_http_core_module = {
740 NGX_MODULE_V1,
741 &ngx_http_core_module_ctx, /* module context */
742 ngx_http_core_commands, /* module directives */
743 NGX_HTTP_MODULE, /* module type */
744 NULL, /* init master */
745 NULL, /* init module */
746 NULL, /* init process */
747 NULL, /* init thread */
748 NULL, /* exit thread */
749 NULL, /* exit process */
750 NULL, /* exit master */
751 NGX_MODULE_V1_PADDING
752 };
753
754
755 ngx_str_t ngx_http_core_get_method = { 3, (u_char *) "GET " };
756
757
758 void
759 ngx_http_handler(ngx_http_request_t *r)
760 {
761 ngx_http_core_main_conf_t *cmcf;
762
763 r->connection->log->action = NULL;
764
765 r->connection->unexpected_eof = 0;
766
767 if (!r->internal) {
768 switch (r->headers_in.connection_type) {
769 case 0:
770 if (r->http_version > NGX_HTTP_VERSION_10) {
771 r->keepalive = 1;
772 } else {
773 r->keepalive = 0;
774 }
775 break;
776
777 case NGX_HTTP_CONNECTION_CLOSE:
778 r->keepalive = 0;
779 break;
780
781 case NGX_HTTP_CONNECTION_KEEP_ALIVE:
782 r->keepalive = 1;
783 break;
784 }
785
786 if (r->keepalive && r->headers_in.msie && r->method == NGX_HTTP_POST) {
787
788 /*
789 * MSIE may wait for some time if an response for
790 * a POST request was sent over a keepalive connection
791 */
792
793 r->keepalive = 0;
794 }
795
796 if (r->headers_in.content_length_n > 0) {
797 r->lingering_close = 1;
798
799 } else {
800 r->lingering_close = 0;
801 }
802
803 r->phase_handler = 0;
804
805 } else {
806 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
807 r->phase_handler = cmcf->phase_engine.server_rewrite_index;
808 }
809
810 if (r->unparsed_uri.len) {
811 r->valid_unparsed_uri = 1;
812 }
813
814 r->valid_location = 1;
815 r->gzip = 0;
816
817 r->write_event_handler = ngx_http_core_run_phases;
818 ngx_http_core_run_phases(r);
819 }
820
821
822 void
823 ngx_http_core_run_phases(ngx_http_request_t *r)
824 {
825 ngx_int_t rc;
826 ngx_http_phase_handler_t *ph;
827 ngx_http_core_main_conf_t *cmcf;
828
829 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
830
831 ph = cmcf->phase_engine.handlers;
832
833 while (ph[r->phase_handler].checker) {
834
835 rc = ph[r->phase_handler].checker(r, &ph[r->phase_handler]);
836
837 if (rc == NGX_OK) {
838 return;
839 }
840 }
841 }
842
843
844 ngx_int_t
845 ngx_http_core_generic_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph)
846 {
847 ngx_int_t rc;
848
849 /*
850 * generic phase checker,
851 * used by the post read, server rewrite, rewrite, and pre-access phases
852 */
853
854 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
855 "generic phase: %ui", r->phase_handler);
856
857 rc = ph->handler(r);
858
859 if (rc == NGX_OK) {
860 r->phase_handler = ph->next;
861 return NGX_AGAIN;
862 }
863
864 if (rc == NGX_DECLINED) {
865 r->phase_handler++;
866 return NGX_AGAIN;
867 }
868
869 if (rc == NGX_AGAIN || rc == NGX_DONE) {
870 return NGX_OK;
871 }
872
873 /* rc == NGX_ERROR || rc == NGX_HTTP_... */
874
875 ngx_http_finalize_request(r, rc);
876
877 return NGX_OK;
878 }
879
880
881 ngx_int_t
882 ngx_http_core_find_config_phase(ngx_http_request_t *r,
883 ngx_http_phase_handler_t *ph)
884 {
885 u_char *p;
886 size_t len;
887 ngx_int_t rc;
888 ngx_http_core_loc_conf_t *clcf;
889
890 r->content_handler = NULL;
891 r->uri_changed = 0;
892
893 rc = ngx_http_core_find_location(r);
894
895 if (rc == NGX_ERROR) {
896 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
897 return NGX_OK;
898 }
899
900 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
901
902 if (!r->internal && clcf->internal) {
903 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND);
904 return NGX_OK;
905 }
906
907 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
908 "using configuration \"%s%V\"",
909 (clcf->noname ? "*" : (clcf->exact_match ? "=" : "")),
910 &clcf->name);
911
912 ngx_http_update_location_config(r);
913
914 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
915 "http cl:%O max:%O",
916 r->headers_in.content_length_n, clcf->client_max_body_size);
917
918 if (r->headers_in.content_length_n != -1
919 && !r->discard_body
920 && clcf->client_max_body_size
921 && clcf->client_max_body_size < r->headers_in.content_length_n)
922 {
923 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
924 "client intended to send too large body: %O bytes",
925 r->headers_in.content_length_n);
926
927 (void) ngx_http_discard_request_body(r);
928 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_ENTITY_TOO_LARGE);
929 return NGX_OK;
930 }
931
932 if (rc == NGX_DONE) {
933 r->headers_out.location = ngx_list_push(&r->headers_out.headers);
934 if (r->headers_out.location == NULL) {
935 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
936 return NGX_OK;
937 }
938
939 /*
940 * we do not need to set the r->headers_out.location->hash and
941 * r->headers_out.location->key fields
942 */
943
944 if (r->args.len == 0) {
945 r->headers_out.location->value = clcf->name;
946
947 } else {
948 len = clcf->name.len + 1 + r->args.len;
949 p = ngx_pnalloc(r->pool, len);
950
951 if (p == NULL) {
952 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
953 return NGX_OK;
954 }
955
956 r->headers_out.location->value.len = len;
957 r->headers_out.location->value.data = p;
958
959 p = ngx_cpymem(p, clcf->name.data, clcf->name.len);
960 *p++ = '?';
961 ngx_memcpy(p, r->args.data, r->args.len);
962 }
963
964 ngx_http_finalize_request(r, NGX_HTTP_MOVED_PERMANENTLY);
965 return NGX_OK;
966 }
967
968 r->phase_handler++;
969 return NGX_AGAIN;
970 }
971
972
973 ngx_int_t
974 ngx_http_core_post_rewrite_phase(ngx_http_request_t *r,
975 ngx_http_phase_handler_t *ph)
976 {
977 ngx_http_core_srv_conf_t *cscf;
978
979 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
980 "post rewrite phase: %ui", r->phase_handler);
981
982 if (!r->uri_changed) {
983 r->phase_handler++;
984 return NGX_AGAIN;
985 }
986
987 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
988 "uri changes: %d", r->uri_changes);
989
990 /*
991 * gcc before 3.3 compiles the broken code for
992 * if (r->uri_changes-- == 0)
993 * if the r->uri_changes is defined as
994 * unsigned uri_changes:4
995 */
996
997 r->uri_changes--;
998
999 if (r->uri_changes == 0) {
1000 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1001 "rewrite or internal redirection cycle "
1002 "while processing \"%V\"", &r->uri);
1003
1004 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
1005 return NGX_OK;
1006 }
1007
1008 r->phase_handler = ph->next;
1009
1010 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
1011 r->loc_conf = cscf->ctx->loc_conf;
1012
1013 return NGX_AGAIN;
1014 }
1015
1016
1017 ngx_int_t
1018 ngx_http_core_access_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph)
1019 {
1020 ngx_int_t rc;
1021 ngx_http_core_loc_conf_t *clcf;
1022
1023 if (r != r->main) {
1024 r->phase_handler = ph->next;
1025 return NGX_AGAIN;
1026 }
1027
1028 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1029 "access phase: %ui", r->phase_handler);
1030
1031 rc = ph->handler(r);
1032
1033 if (rc == NGX_DECLINED) {
1034 r->phase_handler++;
1035 return NGX_AGAIN;
1036 }
1037
1038 if (rc == NGX_AGAIN || rc == NGX_DONE) {
1039 return NGX_OK;
1040 }
1041
1042 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1043
1044 if (clcf->satisfy == NGX_HTTP_SATISFY_ALL) {
1045
1046 if (rc == NGX_OK) {
1047 r->phase_handler++;
1048 return NGX_AGAIN;
1049 }
1050
1051 } else {
1052 if (rc == NGX_OK) {
1053 r->access_code = 0;
1054
1055 if (r->headers_out.www_authenticate) {
1056 r->headers_out.www_authenticate->hash = 0;
1057 }
1058
1059 r->phase_handler = ph->next;
1060 return NGX_AGAIN;
1061 }
1062
1063 if (rc == NGX_HTTP_FORBIDDEN || rc == NGX_HTTP_UNAUTHORIZED) {
1064 r->access_code = rc;
1065
1066 r->phase_handler++;
1067 return NGX_AGAIN;
1068 }
1069 }
1070
1071 /* rc == NGX_ERROR || rc == NGX_HTTP_... */
1072
1073 ngx_http_finalize_request(r, rc);
1074 return NGX_OK;
1075 }
1076
1077
1078 ngx_int_t
1079 ngx_http_core_post_access_phase(ngx_http_request_t *r,
1080 ngx_http_phase_handler_t *ph)
1081 {
1082 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1083 "post access phase: %ui", r->phase_handler);
1084
1085 if (r->access_code) {
1086
1087 if (r->access_code == NGX_HTTP_FORBIDDEN) {
1088 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1089 "access forbidden by rule");
1090 }
1091
1092 ngx_http_finalize_request(r, r->access_code);
1093 return NGX_OK;
1094 }
1095
1096 r->phase_handler++;
1097 return NGX_AGAIN;
1098 }
1099
1100
1101 ngx_int_t
1102 ngx_http_core_try_files_phase(ngx_http_request_t *r,
1103 ngx_http_phase_handler_t *ph)
1104 {
1105 size_t len, root, alias, reserve, allocated;
1106 u_char *p, *name;
1107 ngx_str_t path, args;
1108 ngx_uint_t test_dir;
1109 ngx_http_try_file_t *tf;
1110 ngx_open_file_info_t of;
1111 ngx_http_script_code_pt code;
1112 ngx_http_script_engine_t e;
1113 ngx_http_core_loc_conf_t *clcf;
1114 ngx_http_script_len_code_pt lcode;
1115
1116 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1117 "try files phase: %ui", r->phase_handler);
1118
1119 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1120
1121 if (clcf->try_files == NULL) {
1122 r->phase_handler++;
1123 return NGX_AGAIN;
1124 }
1125
1126 allocated = 0;
1127 root = 0;
1128 name = NULL;
1129 /* suppress MSVC warning */
1130 path.data = NULL;
1131
1132 tf = clcf->try_files;
1133
1134 alias = clcf->alias ? clcf->name.len : 0;
1135
1136 for ( ;; ) {
1137
1138 if (tf->lengths) {
1139 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
1140
1141 e.ip = tf->lengths->elts;
1142 e.request = r;
1143
1144 /* 1 is for terminating '\0' as in static names */
1145 len = 1;
1146
1147 while (*(uintptr_t *) e.ip) {
1148 lcode = *(ngx_http_script_len_code_pt *) e.ip;
1149 len += lcode(&e);
1150 }
1151
1152 } else {
1153 len = tf->name.len;
1154 }
1155
1156 /* 16 bytes are preallocation */
1157 reserve = ngx_abs((ssize_t) (len - r->uri.len)) + alias + 16;
1158
1159 if (reserve > allocated) {
1160
1161 /* we just need to allocate path and to copy a root */
1162
1163 if (ngx_http_map_uri_to_path(r, &path, &root, reserve) == NULL) {
1164 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
1165 return NGX_OK;
1166 }
1167
1168 name = path.data + root;
1169 allocated = path.len - root - (r->uri.len - alias);
1170 }
1171
1172 if (tf->values == NULL) {
1173
1174 /* tf->name.len includes the terminating '\0' */
1175
1176 ngx_memcpy(name, tf->name.data, tf->name.len);
1177
1178 path.len = (name + tf->name.len - 1) - path.data;
1179
1180 } else {
1181 e.ip = tf->values->elts;
1182 e.pos = name;
1183 e.flushed = 1;
1184
1185 while (*(uintptr_t *) e.ip) {
1186 code = *(ngx_http_script_code_pt *) e.ip;
1187 code((ngx_http_script_engine_t *) &e);
1188 }
1189
1190 path.len = e.pos - path.data;
1191
1192 *e.pos = '\0';
1193
1194 if (alias && ngx_strncmp(name, clcf->name.data, alias) == 0) {
1195 ngx_memcpy(name, name + alias, len - alias);
1196 path.len -= alias;
1197 }
1198 }
1199
1200 test_dir = tf->test_dir;
1201
1202 tf++;
1203
1204 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1205 "try to use file: \"%s\" \"%s\"", name, path.data);
1206
1207 if (tf->lengths == NULL && tf->name.len == 0) {
1208
1209 if (tf->code) {
1210 ngx_http_finalize_request(r, tf->code);
1211 return NGX_OK;
1212 }
1213
1214 path.len -= root;
1215 path.data += root;
1216
1217 if (path.data[0] == '@') {
1218 (void) ngx_http_named_location(r, &path);
1219
1220 } else {
1221 ngx_http_split_args(r, &path, &args);
1222
1223 (void) ngx_http_internal_redirect(r, &path, &args);
1224 }
1225
1226 ngx_http_finalize_request(r, NGX_DONE);
1227 return NGX_OK;
1228 }
1229
1230 ngx_memzero(&of, sizeof(ngx_open_file_info_t));
1231
1232 of.directio = clcf->directio;
1233 of.valid = clcf->open_file_cache_valid;
1234 of.min_uses = clcf->open_file_cache_min_uses;
1235 of.test_only = 1;
1236 of.errors = clcf->open_file_cache_errors;
1237 of.events = clcf->open_file_cache_events;
1238
1239 if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool)
1240 != NGX_OK)
1241 {
1242 if (of.err != NGX_ENOENT
1243 && of.err != NGX_ENOTDIR
1244 && of.err != NGX_ENAMETOOLONG)
1245 {
1246 ngx_log_error(NGX_LOG_CRIT, r->connection->log, of.err,
1247 "%s \"%s\" failed", of.failed, path.data);
1248 }
1249
1250 continue;
1251 }
1252
1253 if (of.is_dir && !test_dir) {
1254 continue;
1255 }
1256
1257 path.len -= root;
1258 path.data += root;
1259
1260 if (!alias) {
1261 r->uri = path;
1262
1263 } else {
1264 r->uri.len = alias + path.len;
1265 r->uri.data = ngx_pnalloc(r->pool, r->uri.len);
1266 if (r->uri.data == NULL) {
1267 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
1268 return NGX_OK;
1269 }
1270
1271 p = ngx_copy(r->uri.data, clcf->name.data, alias);
1272 ngx_memcpy(p, name, path.len);
1273 }
1274
1275 ngx_http_set_exten(r);
1276
1277 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1278 "try file uri: \"%V\"", &r->uri);
1279
1280 r->phase_handler++;
1281 return NGX_AGAIN;
1282 }
1283
1284 /* not reached */
1285 }
1286
1287
1288 ngx_int_t
1289 ngx_http_core_content_phase(ngx_http_request_t *r,
1290 ngx_http_phase_handler_t *ph)
1291 {
1292 size_t root;
1293 ngx_int_t rc;
1294 ngx_str_t path;
1295
1296 if (r->content_handler) {
1297 r->write_event_handler = ngx_http_request_empty_handler;
1298 ngx_http_finalize_request(r, r->content_handler(r));
1299 return NGX_OK;
1300 }
1301
1302 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1303 "content phase: %ui", r->phase_handler);
1304
1305 rc = ph->handler(r);
1306
1307 if (rc != NGX_DECLINED) {
1308 ngx_http_finalize_request(r, rc);
1309 return NGX_OK;
1310 }
1311
1312 /* rc == NGX_DECLINED */
1313
1314 ph++;
1315
1316 if (ph->checker) {
1317 r->phase_handler++;
1318 return NGX_AGAIN;
1319 }
1320
1321 /* no content handler was found */
1322
1323 if (r->uri.data[r->uri.len - 1] == '/' && !r->zero_in_uri) {
1324
1325 if (ngx_http_map_uri_to_path(r, &path, &root, 0) != NULL) {
1326 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1327 "directory index of \"%s\" is forbidden", path.data);
1328 }
1329
1330 ngx_http_finalize_request(r, NGX_HTTP_FORBIDDEN);
1331 return NGX_OK;
1332 }
1333
1334 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no handler found");
1335
1336 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND);
1337 return NGX_OK;
1338 }
1339
1340
1341 void
1342 ngx_http_update_location_config(ngx_http_request_t *r)
1343 {
1344 ngx_http_core_loc_conf_t *clcf;
1345
1346 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1347
1348 if (r->method & clcf->limit_except) {
1349 r->loc_conf = clcf->limit_except_loc_conf;
1350 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1351 }
1352
1353 if (r == r->main) {
1354 r->connection->log->file = clcf->error_log->file;
1355
1356 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
1357 r->connection->log->log_level = clcf->error_log->log_level;
1358 }
1359 }
1360
1361 if ((ngx_io.flags & NGX_IO_SENDFILE) && clcf->sendfile) {
1362 r->connection->sendfile = 1;
1363
1364 } else {
1365 r->connection->sendfile = 0;
1366 }
1367
1368 if (clcf->client_body_in_file_only) {
1369 r->request_body_in_file_only = 1;
1370 r->request_body_in_persistent_file = 1;
1371 r->request_body_in_clean_file =
1372 clcf->client_body_in_file_only == NGX_HTTP_REQUEST_BODY_FILE_CLEAN;
1373 r->request_body_file_log_level = NGX_LOG_NOTICE;
1374
1375 } else {
1376 r->request_body_file_log_level = NGX_LOG_WARN;
1377 }
1378
1379 r->request_body_in_single_buf = clcf->client_body_in_single_buffer;
1380
1381 if (r->keepalive) {
1382 if (clcf->keepalive_timeout == 0) {
1383 r->keepalive = 0;
1384
1385 } else if (r->connection->requests >= clcf->keepalive_requests) {
1386 r->keepalive = 0;
1387 }
1388 }
1389
1390 if (!clcf->tcp_nopush) {
1391 /* disable TCP_NOPUSH/TCP_CORK use */
1392 r->connection->tcp_nopush = NGX_TCP_NOPUSH_DISABLED;
1393 }
1394
1395 if (r->limit_rate == 0) {
1396 r->limit_rate = clcf->limit_rate;
1397 }
1398
1399 if (clcf->handler) {
1400 r->content_handler = clcf->handler;
1401 }
1402 }
1403
1404
1405 /*
1406 * NGX_OK - exact or regex match
1407 * NGX_DONE - auto redirect
1408 * NGX_AGAIN - inclusive match
1409 * NGX_ERROR - regex error
1410 * NGX_DECLINED - no match
1411 */
1412
1413 static ngx_int_t
1414 ngx_http_core_find_location(ngx_http_request_t *r)
1415 {
1416 ngx_int_t rc;
1417 ngx_http_core_loc_conf_t *pclcf;
1418 #if (NGX_PCRE)
1419 ngx_int_t n, len;
1420 ngx_uint_t noregex;
1421 ngx_http_core_loc_conf_t *clcf, **clcfp;
1422
1423 noregex = 0;
1424 #endif
1425
1426 pclcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1427
1428 rc = ngx_http_core_find_static_location(r, pclcf->static_locations);
1429
1430 if (rc == NGX_AGAIN) {
1431
1432 #if (NGX_PCRE)
1433 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1434
1435 noregex = clcf->noregex;
1436 #endif
1437
1438 /* look up nested locations */
1439
1440 rc = ngx_http_core_find_location(r);
1441 }
1442
1443 if (rc == NGX_OK || rc == NGX_DONE) {
1444 return rc;
1445 }
1446
1447 /* rc == NGX_DECLINED or rc == NGX_AGAIN in nested location */
1448
1449 #if (NGX_PCRE)
1450
1451 if (noregex == 0 && pclcf->regex_locations) {
1452
1453 len = 0;
1454
1455 for (clcfp = pclcf->regex_locations; *clcfp; clcfp++) {
1456
1457 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1458 "test location: ~ \"%V\"", &(*clcfp)->name);
1459
1460 if ((*clcfp)->captures) {
1461
1462 len = (NGX_HTTP_MAX_CAPTURES + 1) * 3;
1463
1464 if (r->captures == NULL) {
1465 r->captures = ngx_palloc(r->pool, len * sizeof(int));
1466 if (r->captures == NULL) {
1467 return NGX_ERROR;
1468 }
1469 }
1470 }
1471
1472 n = ngx_regex_exec((*clcfp)->regex, &r->uri, r->captures, len);
1473
1474 if (n == NGX_REGEX_NO_MATCHED) {
1475 continue;
1476 }
1477
1478 if (n < 0) {
1479 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
1480 ngx_regex_exec_n
1481 " failed: %d on \"%V\" using \"%V\"",
1482 n, &r->uri, &(*clcfp)->name);
1483 return NGX_ERROR;
1484 }
1485
1486 /* match */
1487
1488 r->loc_conf = (*clcfp)->loc_conf;
1489
1490 r->ncaptures = len;
1491 r->captures_data = r->uri.data;
1492
1493 /* look up nested locations */
1494
1495 rc = ngx_http_core_find_location(r);
1496
1497 return (rc == NGX_ERROR) ? rc : NGX_OK;
1498 }
1499 }
1500 #endif
1501
1502 return rc;
1503 }
1504
1505
1506 /*
1507 * NGX_OK - exact match
1508 * NGX_DONE - auto redirect
1509 * NGX_AGAIN - inclusive match
1510 * NGX_DECLINED - no match
1511 */
1512
1513 static ngx_int_t
1514 ngx_http_core_find_static_location(ngx_http_request_t *r,
1515 ngx_http_location_tree_node_t *node)
1516 {
1517 u_char *uri;
1518 size_t len, n;
1519 ngx_int_t rc, rv;
1520
1521 len = r->uri.len;
1522 uri = r->uri.data;
1523
1524 rv = NGX_DECLINED;
1525
1526 for ( ;; ) {
1527
1528 if (node == NULL) {
1529 return rv;
1530 }
1531
1532 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1533 "test location: \"%*s\"", node->len, node->name);
1534
1535 n = (len <= (size_t) node->len) ? len : node->len;
1536
1537 rc = ngx_filename_cmp(uri, node->name, n);
1538
1539 if (rc != 0) {
1540 node = (rc < 0) ? node->left : node->right;
1541
1542 continue;
1543 }
1544
1545 if (len > (size_t) node->len) {
1546
1547 if (node->inclusive) {
1548
1549 r->loc_conf = node->inclusive->loc_conf;
1550 rv = NGX_AGAIN;
1551
1552 node = node->tree;
1553 uri += n;
1554 len -= n;
1555
1556 continue;
1557 }
1558
1559 /* exact only */
1560
1561 node = node->right;
1562
1563 continue;
1564 }
1565
1566 if (len == (size_t) node->len) {
1567
1568 r->loc_conf = (node->exact) ? node->exact->loc_conf:
1569 node->inclusive->loc_conf;
1570 return NGX_OK;
1571 }
1572
1573 /* len < node->len */
1574
1575 if (len + 1 == (size_t) node->len && node->auto_redirect) {
1576
1577 r->loc_conf = (node->exact) ? node->exact->loc_conf:
1578 node->inclusive->loc_conf;
1579 rv = NGX_DONE;
1580 }
1581
1582 node = node->left;
1583 }
1584 }
1585
1586
1587 void *
1588 ngx_http_test_content_type(ngx_http_request_t *r, ngx_hash_t *types_hash)
1589 {
1590 u_char c, *lowcase;
1591 size_t len;
1592 ngx_uint_t i, hash;
1593
1594 if (r->headers_out.content_type.len == 0) {
1595 return NULL;
1596 }
1597
1598 len = r->headers_out.content_type_len;
1599
1600 if (r->headers_out.content_type_lowcase == NULL) {
1601
1602 lowcase = ngx_pnalloc(r->pool, len);
1603 if (lowcase == NULL) {
1604 return NULL;
1605 }
1606
1607 r->headers_out.content_type_lowcase = lowcase;
1608
1609 hash = 0;
1610
1611 for (i = 0; i < len; i++) {
1612 c = ngx_tolower(r->headers_out.content_type.data[i]);
1613 hash = ngx_hash(hash, c);
1614 lowcase[i] = c;
1615 }
1616
1617 r->headers_out.content_type_hash = hash;
1618 }
1619
1620 return ngx_hash_find(types_hash, r->headers_out.content_type_hash,
1621 r->headers_out.content_type_lowcase, len);
1622 }
1623
1624
1625 ngx_int_t
1626 ngx_http_set_content_type(ngx_http_request_t *r)
1627 {
1628 u_char c, *exten;
1629 ngx_str_t *type;
1630 ngx_uint_t i, hash;
1631 ngx_http_core_loc_conf_t *clcf;
1632
1633 if (r->headers_out.content_type.len) {
1634 return NGX_OK;
1635 }
1636
1637 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1638
1639 if (r->exten.len) {
1640
1641 hash = 0;
1642
1643 for (i = 0; i < r->exten.len; i++) {
1644 c = r->exten.data[i];
1645
1646 if (c >= 'A' && c <= 'Z') {
1647
1648 exten = ngx_pnalloc(r->pool, r->exten.len);
1649 if (exten == NULL) {
1650 return NGX_ERROR;
1651 }
1652
1653 hash = ngx_hash_strlow(exten, r->exten.data, r->exten.len);
1654
1655 r->exten.data = exten;
1656
1657 break;
1658 }
1659
1660 hash = ngx_hash(hash, c);
1661 }
1662
1663 type = ngx_hash_find(&clcf->types_hash, hash,
1664 r->exten.data, r->exten.len);
1665
1666 if (type) {
1667 r->headers_out.content_type_len = type->len;
1668 r->headers_out.content_type = *type;
1669
1670 return NGX_OK;
1671 }
1672 }
1673
1674 r->headers_out.content_type_len = clcf->default_type.len;
1675 r->headers_out.content_type = clcf->default_type;
1676
1677 return NGX_OK;
1678 }
1679
1680
1681 void
1682 ngx_http_set_exten(ngx_http_request_t *r)
1683 {
1684 ngx_int_t i;
1685
1686 r->exten.len = 0;
1687 r->exten.data = NULL;
1688
1689 for (i = r->uri.len - 1; i > 1; i--) {
1690 if (r->uri.data[i] == '.' && r->uri.data[i - 1] != '/') {
1691
1692 r->exten.len = r->uri.len - i - 1;
1693 r->exten.data = &r->uri.data[i + 1];
1694
1695 return;
1696
1697 } else if (r->uri.data[i] == '/') {
1698 return;
1699 }
1700 }
1701
1702 return;
1703 }
1704
1705
1706 ngx_int_t
1707 ngx_http_send_header(ngx_http_request_t *r)
1708 {
1709 if (r->err_status) {
1710 r->headers_out.status = r->err_status;
1711 r->headers_out.status_line.len = 0;
1712 }
1713
1714 return ngx_http_top_header_filter(r);
1715 }
1716
1717
1718 ngx_int_t
1719 ngx_http_output_filter(ngx_http_request_t *r, ngx_chain_t *in)
1720 {
1721 ngx_int_t rc;
1722 ngx_connection_t *c;
1723
1724 c = r->connection;
1725
1726 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
1727 "http output filter \"%V?%V\"", &r->uri, &r->args);
1728
1729 rc = ngx_http_top_body_filter(r, in);
1730
1731 if (rc == NGX_ERROR) {
1732 /* NGX_ERROR may be returned by any filter */
1733 c->error = 1;
1734 }
1735
1736 return rc;
1737 }
1738
1739
1740 u_char *
1741 ngx_http_map_uri_to_path(ngx_http_request_t *r, ngx_str_t *path,
1742 size_t *root_length, size_t reserved)
1743 {
1744 u_char *last;
1745 size_t alias;
1746 ngx_http_core_loc_conf_t *clcf;
1747
1748 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1749
1750 alias = clcf->alias ? clcf->name.len : 0;
1751
1752 if (alias && !r->valid_location) {
1753 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
1754 "\"alias\" could not be used in location \"%V\" "
1755 "where URI was rewritten", &clcf->name);
1756 return NULL;
1757 }
1758
1759 if (clcf->root_lengths == NULL) {
1760
1761 *root_length = clcf->root.len;
1762
1763 path->len = clcf->root.len + reserved + r->uri.len - alias + 1;
1764
1765 path->data = ngx_pnalloc(r->pool, path->len);
1766 if (path->data == NULL) {
1767 return NULL;
1768 }
1769
1770 last = ngx_copy(path->data, clcf->root.data, clcf->root.len);
1771
1772 } else {
1773
1774 #if (NGX_PCRE)
1775 ngx_uint_t captures;
1776
1777 captures = alias && clcf->captures;
1778 reserved += captures ? 1 : r->uri.len - alias + 1;
1779 #else
1780 reserved += r->uri.len - alias + 1;
1781 #endif
1782
1783 if (ngx_http_script_run(r, path, clcf->root_lengths->elts, reserved,
1784 clcf->root_values->elts)
1785 == NULL)
1786 {
1787 return NULL;
1788 }
1789
1790 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, path, 0) != NGX_OK) {
1791 return NULL;
1792 }
1793
1794 *root_length = path->len - reserved;
1795 last = path->data + *root_length;
1796
1797 #if (NGX_PCRE)
1798 if (captures) {
1799 *last = '\0';
1800 return last;
1801 }
1802 #endif
1803 }
1804
1805 last = ngx_cpystrn(last, r->uri.data + alias, r->uri.len - alias + 1);
1806
1807 return last;
1808 }
1809
1810
1811 ngx_int_t
1812 ngx_http_auth_basic_user(ngx_http_request_t *r)
1813 {
1814 ngx_str_t auth, encoded;
1815 ngx_uint_t len;
1816
1817 if (r->headers_in.user.len == 0 && r->headers_in.user.data != NULL) {
1818 return NGX_DECLINED;
1819 }
1820
1821 if (r->headers_in.authorization == NULL) {
1822 r->headers_in.user.data = (u_char *) "";
1823 return NGX_DECLINED;
1824 }
1825
1826 encoded = r->headers_in.authorization->value;
1827
1828 if (encoded.len < sizeof("Basic ") - 1
1829 || ngx_strncasecmp(encoded.data, (u_char *) "Basic ",
1830 sizeof("Basic ") - 1)
1831 != 0)
1832 {
1833 r->headers_in.user.data = (u_char *) "";
1834 return NGX_DECLINED;
1835 }
1836
1837 encoded.len -= sizeof("Basic ") - 1;
1838 encoded.data += sizeof("Basic ") - 1;
1839
1840 while (encoded.len && encoded.data[0] == ' ') {
1841 encoded.len--;
1842 encoded.data++;
1843 }
1844
1845 if (encoded.len == 0) {
1846 r->headers_in.user.data = (u_char *) "";
1847 return NGX_DECLINED;
1848 }
1849
1850 auth.len = ngx_base64_decoded_length(encoded.len);
1851 auth.data = ngx_pnalloc(r->pool, auth.len + 1);
1852 if (auth.data == NULL) {
1853 return NGX_ERROR;
1854 }
1855
1856 if (ngx_decode_base64(&auth, &encoded) != NGX_OK) {
1857 r->headers_in.user.data = (u_char *) "";
1858 return NGX_DECLINED;
1859 }
1860
1861 auth.data[auth.len] = '\0';
1862
1863 for (len = 0; len < auth.len; len++) {
1864 if (auth.data[len] == ':') {
1865 break;
1866 }
1867 }
1868
1869 if (len == 0 || len == auth.len) {
1870 r->headers_in.user.data = (u_char *) "";
1871 return NGX_DECLINED;
1872 }
1873
1874 r->headers_in.user.len = len;
1875 r->headers_in.user.data = auth.data;
1876 r->headers_in.passwd.len = auth.len - len - 1;
1877 r->headers_in.passwd.data = &auth.data[len + 1];
1878
1879 return NGX_OK;
1880 }
1881
1882
1883 #if (NGX_HTTP_GZIP)
1884
1885 ngx_int_t
1886 ngx_http_gzip_ok(ngx_http_request_t *r)
1887 {
1888 time_t date, expires;
1889 ngx_uint_t p;
1890 ngx_array_t *cc;
1891 ngx_table_elt_t *e, *d;
1892 ngx_http_core_loc_conf_t *clcf;
1893
1894 if (r->gzip == 1) {
1895 return NGX_OK;
1896 }
1897
1898 if (r->gzip == 2) {
1899 return NGX_DECLINED;
1900 }
1901
1902 r->gzip = 2;
1903
1904 if (r != r->main
1905 || r->headers_in.accept_encoding == NULL
1906 || ngx_strcasestrn(r->headers_in.accept_encoding->value.data,
1907 "gzip", 4 - 1)
1908 == NULL
1909
1910 /*
1911 * if the URL (without the "http://" prefix) is longer than 253 bytes,
1912 * then MSIE 4.x can not handle the compressed stream - it waits
1913 * too long, hangs up or crashes
1914 */
1915
1916 || (r->headers_in.msie4 && r->unparsed_uri.len > 200))
1917 {
1918 return NGX_DECLINED;
1919 }
1920
1921 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1922
1923 if (r->headers_in.msie6 && clcf->gzip_disable_msie6) {
1924 return NGX_DECLINED;
1925 }
1926
1927 if (r->http_version < clcf->gzip_http_version) {
1928 return NGX_DECLINED;
1929 }
1930
1931 if (r->headers_in.via == NULL) {
1932 goto ok;
1933 }
1934
1935 p = clcf->gzip_proxied;
1936
1937 if (p & NGX_HTTP_GZIP_PROXIED_OFF) {
1938 return NGX_DECLINED;
1939 }
1940
1941 if (p & NGX_HTTP_GZIP_PROXIED_ANY) {
1942 goto ok;
1943 }
1944
1945 if (r->headers_in.authorization && (p & NGX_HTTP_GZIP_PROXIED_AUTH)) {
1946 goto ok;
1947 }
1948
1949 e = r->headers_out.expires;
1950
1951 if (e) {
1952
1953 if (!(p & NGX_HTTP_GZIP_PROXIED_EXPIRED)) {
1954 return NGX_DECLINED;
1955 }
1956
1957 expires = ngx_http_parse_time(e->value.data, e->value.len);
1958 if (expires == NGX_ERROR) {
1959 return NGX_DECLINED;
1960 }
1961
1962 d = r->headers_out.date;
1963
1964 if (d) {
1965 date = ngx_http_parse_time(d->value.data, d->value.len);
1966 if (date == NGX_ERROR) {
1967 return NGX_DECLINED;
1968 }
1969
1970 } else {
1971 date = ngx_time();
1972 }
1973
1974 if (expires < date) {
1975 goto ok;
1976 }
1977
1978 return NGX_DECLINED;
1979 }
1980
1981 cc = &r->headers_out.cache_control;
1982
1983 if (cc->elts) {
1984
1985 if ((p & NGX_HTTP_GZIP_PROXIED_NO_CACHE)
1986 && ngx_http_parse_multi_header_lines(cc, &ngx_http_gzip_no_cache,
1987 NULL)
1988 >= 0)
1989 {
1990 goto ok;
1991 }
1992
1993 if ((p & NGX_HTTP_GZIP_PROXIED_NO_STORE)
1994 && ngx_http_parse_multi_header_lines(cc, &ngx_http_gzip_no_store,
1995 NULL)
1996 >= 0)
1997 {
1998 goto ok;
1999 }
2000
2001 if ((p & NGX_HTTP_GZIP_PROXIED_PRIVATE)
2002 && ngx_http_parse_multi_header_lines(cc, &ngx_http_gzip_private,
2003 NULL)
2004 >= 0)
2005 {
2006 goto ok;
2007 }
2008
2009 return NGX_DECLINED;
2010 }
2011
2012 if ((p & NGX_HTTP_GZIP_PROXIED_NO_LM) && r->headers_out.last_modified) {
2013 return NGX_DECLINED;
2014 }
2015
2016 if ((p & NGX_HTTP_GZIP_PROXIED_NO_ETAG) && r->headers_out.etag) {
2017 return NGX_DECLINED;
2018 }
2019
2020 ok:
2021
2022 #if (NGX_PCRE)
2023
2024 if (clcf->gzip_disable && r->headers_in.user_agent) {
2025
2026 if (ngx_regex_exec_array(clcf->gzip_disable,
2027 &r->headers_in.user_agent->value,
2028 r->connection->log)
2029 != NGX_DECLINED)
2030 {
2031 return NGX_DECLINED;
2032 }
2033 }
2034
2035 #endif
2036
2037 r->gzip = 1;
2038
2039 return NGX_OK;
2040 }
2041
2042 #endif
2043
2044
2045 ngx_int_t
2046 ngx_http_subrequest(ngx_http_request_t *r,
2047 ngx_str_t *uri, ngx_str_t *args, ngx_http_request_t **psr,
2048 ngx_http_post_subrequest_t *ps, ngx_uint_t flags)
2049 {
2050 ngx_connection_t *c;
2051 ngx_http_request_t *sr;
2052 ngx_http_core_srv_conf_t *cscf;
2053 ngx_http_postponed_request_t *pr, *p;
2054
2055 r->main->subrequests--;
2056
2057 if (r->main->subrequests == 0) {
2058 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
2059 "subrequests cycle while processing \"%V\"", uri);
2060 r->main->subrequests = 1;
2061 return NGX_ERROR;
2062 }
2063
2064 sr = ngx_pcalloc(r->pool, sizeof(ngx_http_request_t));
2065 if (sr == NULL) {
2066 return NGX_ERROR;
2067 }
2068
2069 sr->signature = NGX_HTTP_MODULE;
2070
2071 c = r->connection;
2072 sr->connection = c;
2073
2074 sr->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
2075 if (sr->ctx == NULL) {
2076 return NGX_ERROR;
2077 }
2078
2079 if (ngx_list_init(&sr->headers_out.headers, r->pool, 20,
2080 sizeof(ngx_table_elt_t))
2081 != NGX_OK)
2082 {
2083 return NGX_ERROR;
2084 }
2085
2086 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
2087 sr->main_conf = cscf->ctx->main_conf;
2088 sr->srv_conf = cscf->ctx->srv_conf;
2089 sr->loc_conf = cscf->ctx->loc_conf;
2090
2091 sr->pool = r->pool;
2092
2093 sr->headers_in = r->headers_in;
2094
2095 ngx_http_clear_content_length(sr);
2096 ngx_http_clear_accept_ranges(sr);
2097 ngx_http_clear_last_modified(sr);
2098
2099 sr->request_body = r->request_body;
2100
2101 sr->method = NGX_HTTP_GET;
2102 sr->http_version = r->http_version;
2103
2104 sr->request_line = r->request_line;
2105 sr->uri = *uri;
2106
2107 if (args) {
2108 sr->args = *args;
2109 }
2110
2111 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
2112 "http subrequest \"%V?%V\"", uri, &sr->args);
2113
2114 sr->zero_in_uri = (flags & NGX_HTTP_ZERO_IN_URI) != 0;
2115 sr->subrequest_in_memory = (flags & NGX_HTTP_SUBREQUEST_IN_MEMORY) != 0;
2116 sr->waited = (flags & NGX_HTTP_SUBREQUEST_WAITED) != 0;
2117
2118 sr->unparsed_uri = r->unparsed_uri;
2119 sr->method_name = ngx_http_core_get_method;
2120 sr->http_protocol = r->http_protocol;
2121
2122 ngx_http_set_exten(sr);
2123
2124 sr->main = r->main;
2125 sr->parent = r;
2126 sr->post_subrequest = ps;
2127 sr->read_event_handler = ngx_http_request_empty_handler;
2128 sr->write_event_handler = ngx_http_handler;
2129
2130 if (c->data == r && r->postponed == NULL) {
2131 c->data = sr;
2132 }
2133
2134 sr->variables = r->variables;
2135
2136 sr->log_handler = r->log_handler;
2137
2138 pr = ngx_palloc(r->pool, sizeof(ngx_http_postponed_request_t));
2139 if (pr == NULL) {
2140 return NGX_ERROR;
2141 }
2142
2143 pr->request = sr;
2144 pr->out = NULL;
2145 pr->next = NULL;
2146
2147 if (r->postponed) {
2148 for (p = r->postponed; p->next; p = p->next) { /* void */ }
2149 p->next = pr;
2150
2151 } else {
2152 r->postponed = pr;
2153 }
2154
2155 sr->internal = 1;
2156
2157 sr->discard_body = r->discard_body;
2158 sr->expect_tested = 1;
2159 sr->main_filter_need_in_memory = r->main_filter_need_in_memory;
2160
2161 sr->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1;
2162
2163 r->main->subrequests++;
2164 r->main->count++;
2165
2166 *psr = sr;
2167
2168 return ngx_http_post_request(sr, NULL);
2169 }
2170
2171
2172 ngx_int_t
2173 ngx_http_internal_redirect(ngx_http_request_t *r,
2174 ngx_str_t *uri, ngx_str_t *args)
2175 {
2176 ngx_http_core_srv_conf_t *cscf;
2177
2178 r->uri_changes--;
2179
2180 if (r->uri_changes == 0) {
2181 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
2182 "rewrite or internal redirection cycle "
2183 "while internal redirect to \"%V\"", uri);
2184
2185 r->main->count++;
2186 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
2187 return NGX_DONE;
2188 }
2189
2190 r->uri = *uri;
2191
2192 if (args) {
2193 r->args = *args;
2194
2195 } else {
2196 r->args.len = 0;
2197 r->args.data = NULL;
2198 }
2199
2200 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
2201 "internal redirect: \"%V?%V\"", uri, &r->args);
2202
2203 ngx_http_set_exten(r);
2204
2205 /* clear the modules contexts */
2206 ngx_memzero(r->ctx, sizeof(void *) * ngx_http_max_module);
2207
2208 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
2209 r->loc_conf = cscf->ctx->loc_conf;
2210
2211 ngx_http_update_location_config(r);
2212
2213 #if (NGX_HTTP_CACHE)
2214 r->cache = NULL;
2215 #endif
2216
2217 r->internal = 1;
2218 r->main->count++;
2219
2220 ngx_http_handler(r);
2221
2222 return NGX_DONE;
2223 }
2224
2225
2226 ngx_int_t
2227 ngx_http_named_location(ngx_http_request_t *r, ngx_str_t *name)
2228 {
2229 ngx_http_core_srv_conf_t *cscf;
2230 ngx_http_core_loc_conf_t **clcfp;
2231 ngx_http_core_main_conf_t *cmcf;
2232
2233 r->main->count++;
2234
2235 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
2236
2237 if (cscf->named_locations) {
2238
2239 for (clcfp = cscf->named_locations; *clcfp; clcfp++) {
2240
2241 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
2242 "test location: \"%V\"", &(*clcfp)->name);
2243
2244 if (name->len != (*clcfp)->name.len
2245 || ngx_strncmp(name->data, (*clcfp)->name.data, name->len) != 0)
2246 {
2247 continue;
2248 }
2249
2250 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
2251 "using location: %V \"%V?%V\"",
2252 name, &r->uri, &r->args);
2253
2254 r->internal = 1;
2255 r->content_handler = NULL;
2256 r->loc_conf = (*clcfp)->loc_conf;
2257
2258 ngx_http_update_location_config(r);
2259
2260 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
2261
2262 r->phase_handler = cmcf->phase_engine.location_rewrite_index;
2263
2264 ngx_http_core_run_phases(r);
2265
2266 return NGX_DONE;
2267 }
2268 }
2269
2270 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
2271 "could not find named location \"%V\"", name);
2272
2273 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
2274
2275 return NGX_DONE;
2276 }
2277
2278
2279 ngx_http_cleanup_t *
2280 ngx_http_cleanup_add(ngx_http_request_t *r, size_t size)
2281 {
2282 ngx_http_cleanup_t *cln;
2283
2284 r = r->main;
2285
2286 cln = ngx_palloc(r->pool, sizeof(ngx_http_cleanup_t));
2287 if (cln == NULL) {
2288 return NULL;
2289 }
2290
2291 if (size) {
2292 cln->data = ngx_palloc(r->pool, size);
2293 if (cln->data == NULL) {
2294 return NULL;
2295 }
2296
2297 } else {
2298 cln->data = NULL;
2299 }
2300
2301 cln->handler = NULL;
2302 cln->next = r->cleanup;
2303
2304 r->cleanup = cln;
2305
2306 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
2307 "http cleanup add: %p", cln);
2308
2309 return cln;
2310 }
2311
2312
2313 static char *
2314 ngx_http_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
2315 {
2316 char *rv;
2317 void *mconf;
2318 ngx_uint_t i;
2319 ngx_conf_t pcf;
2320 ngx_http_module_t *module;
2321 ngx_http_conf_ctx_t *ctx, *http_ctx;
2322 ngx_http_core_srv_conf_t *cscf, **cscfp;
2323 ngx_http_core_main_conf_t *cmcf;
2324
2325 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t));
2326 if (ctx == NULL) {
2327 return NGX_CONF_ERROR;
2328 }
2329
2330 http_ctx = cf->ctx;
2331 ctx->main_conf = http_ctx->main_conf;
2332
2333 /* the server{}'s srv_conf */
2334
2335 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
2336 if (ctx->srv_conf == NULL) {
2337 return NGX_CONF_ERROR;
2338 }
2339
2340 /* the server{}'s loc_conf */
2341
2342 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
2343 if (ctx->loc_conf == NULL) {
2344 return NGX_CONF_ERROR;
2345 }
2346
2347 for (i = 0; ngx_modules[i]; i++) {
2348 if (ngx_modules[i]->type != NGX_HTTP_MODULE) {
2349 continue;
2350 }
2351
2352 module = ngx_modules[i]->ctx;
2353
2354 if (module->create_srv_conf) {
2355 mconf = module->create_srv_conf(cf);
2356 if (mconf == NULL) {
2357 return NGX_CONF_ERROR;
2358 }
2359
2360 ctx->srv_conf[ngx_modules[i]->ctx_index] = mconf;
2361 }
2362
2363 if (module->create_loc_conf) {
2364 mconf = module->create_loc_conf(cf);
2365 if (mconf == NULL) {
2366 return NGX_CONF_ERROR;
2367 }
2368
2369 ctx->loc_conf[ngx_modules[i]->ctx_index] = mconf;
2370 }
2371 }
2372
2373
2374 /* the server configuration context */
2375
2376 cscf = ctx->srv_conf[ngx_http_core_module.ctx_index];
2377 cscf->ctx = ctx;
2378
2379
2380 cmcf = ctx->main_conf[ngx_http_core_module.ctx_index];
2381
2382 cscfp = ngx_array_push(&cmcf->servers);
2383 if (cscfp == NULL) {
2384 return NGX_CONF_ERROR;
2385 }
2386
2387 *cscfp = cscf;
2388
2389
2390 /* parse inside server{} */
2391
2392 pcf = *cf;
2393 cf->ctx = ctx;
2394 cf->cmd_type = NGX_HTTP_SRV_CONF;
2395
2396 rv = ngx_conf_parse(cf, NULL);
2397
2398 *cf = pcf;
2399
2400 return rv;
2401 }
2402
2403
2404 static char *
2405 ngx_http_core_location(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
2406 {
2407 char *rv;
2408 u_char *mod;
2409 size_t len;
2410 ngx_str_t *value, *name;
2411 ngx_uint_t i;
2412 ngx_conf_t save;
2413 ngx_http_module_t *module;
2414 ngx_http_conf_ctx_t *ctx, *pctx;
2415 ngx_http_core_loc_conf_t *clcf, *pclcf;
2416
2417 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t));
2418 if (ctx == NULL) {
2419 return NGX_CONF_ERROR;
2420 }
2421
2422 pctx = cf->ctx;
2423 ctx->main_conf = pctx->main_conf;
2424 ctx->srv_conf = pctx->srv_conf;
2425
2426 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
2427 if (ctx->loc_conf == NULL) {
2428 return NGX_CONF_ERROR;
2429 }
2430
2431 for (i = 0; ngx_modules[i]; i++) {
2432 if (ngx_modules[i]->type != NGX_HTTP_MODULE) {
2433 continue;
2434 }
2435
2436 module = ngx_modules[i]->ctx;
2437
2438 if (module->create_loc_conf) {
2439 ctx->loc_conf[ngx_modules[i]->ctx_index] =
2440 module->create_loc_conf(cf);
2441 if (ctx->loc_conf[ngx_modules[i]->ctx_index] == NULL) {
2442 return NGX_CONF_ERROR;
2443 }
2444 }
2445 }
2446
2447 clcf = ctx->loc_conf[ngx_http_core_module.ctx_index];
2448 clcf->loc_conf = ctx->loc_conf;
2449
2450 value = cf->args->elts;
2451
2452 if (cf->args->nelts == 3) {
2453
2454 len = value[1].len;
2455 mod = value[1].data;
2456 name = &value[2];
2457
2458 if (len == 1 && mod[0] == '=') {
2459
2460 clcf->name = *name;
2461 clcf->exact_match = 1;
2462
2463 } else if (len == 2 && mod[0] == '^' && mod[1] == '~') {
2464
2465 clcf->name = *name;
2466 clcf->noregex = 1;
2467
2468 } else if (len == 1 && mod[0] == '~') {
2469
2470 if (ngx_http_core_regex_location(cf, clcf, name, 0) != NGX_OK) {
2471 return NGX_CONF_ERROR;
2472 }
2473
2474 } else if (len == 2 && mod[0] == '~' && mod[1] == '*') {
2475
2476 if (ngx_http_core_regex_location(cf, clcf, name, 1) != NGX_OK) {
2477 return NGX_CONF_ERROR;
2478 }
2479
2480 } else {
2481 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2482 "invalid location modifier \"%V\"", &value[1]);
2483 return NGX_CONF_ERROR;
2484 }
2485
2486 } else {
2487
2488 name = &value[1];
2489
2490 if (name->data[0] == '=') {
2491
2492 clcf->name.len = name->len - 1;
2493 clcf->name.data = name->data + 1;
2494 clcf->exact_match = 1;
2495
2496 } else if (name->data[0] == '^' && name->data[1] == '~') {
2497
2498 clcf->name.len = name->len - 2;
2499 clcf->name.data = name->data + 2;
2500 clcf->noregex = 1;
2501
2502 } else if (name->data[0] == '~') {
2503
2504 name->len--;
2505 name->data++;
2506
2507 if (name->data[0] == '*') {
2508
2509 name->len--;
2510 name->data++;
2511
2512 if (ngx_http_core_regex_location(cf, clcf, name, 1) != NGX_OK) {
2513 return NGX_CONF_ERROR;
2514 }
2515
2516 } else {
2517 if (ngx_http_core_regex_location(cf, clcf, name, 0) != NGX_OK) {
2518 return NGX_CONF_ERROR;
2519 }
2520 }
2521
2522 } else {
2523
2524 clcf->name = *name;
2525
2526 if (name->data[0] == '@') {
2527 clcf->named = 1;
2528 }
2529 }
2530 }
2531
2532 pclcf = pctx->loc_conf[ngx_http_core_module.ctx_index];
2533
2534 if (pclcf->name.len) {
2535
2536 /* nested location */
2537
2538 #if 0
2539 clcf->prev_location = pclcf;
2540 #endif
2541
2542 if (pclcf->exact_match) {
2543 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2544 "location \"%V\" could not be inside "
2545 "the exact location \"%V\"",
2546 &clcf->name, &pclcf->name);
2547 return NGX_CONF_ERROR;
2548 }
2549
2550 if (pclcf->named) {
2551 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2552 "location \"%V\" could not be inside "
2553 "the named location \"%V\"",
2554 &clcf->name, &pclcf->name);
2555 return NGX_CONF_ERROR;
2556 }
2557
2558 if (clcf->named) {
2559 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2560 "named location \"%V\" must be "
2561 "on server level only",
2562 &clcf->name);
2563 return NGX_CONF_ERROR;
2564 }
2565
2566 len = pclcf->name.len;
2567
2568 #if (NGX_PCRE)
2569 if (clcf->regex == NULL
2570 && ngx_strncmp(clcf->name.data, pclcf->name.data, len) != 0)
2571 #else
2572 if (ngx_strncmp(clcf->name.data, pclcf->name.data, len) != 0)
2573 #endif
2574 {
2575 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2576 "location \"%V\" is outside location \"%V\"",
2577 &clcf->name, &pclcf->name);
2578 return NGX_CONF_ERROR;
2579 }
2580 }
2581
2582 if (ngx_http_add_location(cf, &pclcf->locations, clcf) != NGX_OK) {
2583 return NGX_CONF_ERROR;
2584 }
2585
2586 save = *cf;
2587 cf->ctx = ctx;
2588 cf->cmd_type = NGX_HTTP_LOC_CONF;
2589
2590 rv = ngx_conf_parse(cf, NULL);
2591
2592 *cf = save;
2593
2594 return rv;
2595 }
2596
2597
2598 static ngx_int_t
2599 ngx_http_core_regex_location(ngx_conf_t *cf, ngx_http_core_loc_conf_t *clcf,
2600 ngx_str_t *regex, ngx_uint_t caseless)
2601 {
2602 #if (NGX_PCRE)
2603 ngx_str_t err;
2604 u_char errstr[NGX_MAX_CONF_ERRSTR];
2605
2606 err.len = NGX_MAX_CONF_ERRSTR;
2607 err.data = errstr;
2608
2609 #if (NGX_HAVE_CASELESS_FILESYSTEM)
2610 caseless = 1;
2611 #endif
2612
2613 clcf->regex = ngx_regex_compile(regex, caseless ? NGX_REGEX_CASELESS: 0,
2614 cf->pool, &err);
2615
2616 if (clcf->regex == NULL) {
2617 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s", err.data);
2618 return NGX_ERROR;
2619 }
2620
2621 clcf->name = *regex;
2622 clcf->captures = (ngx_regex_capture_count(clcf->regex) > 0);
2623
2624 return NGX_OK;
2625
2626 #else
2627
2628 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2629 "the using of the regex \"%V\" requires PCRE library",
2630 regex);
2631 return NGX_ERROR;
2632
2633 #endif
2634 }
2635
2636
2637 static char *
2638 ngx_http_core_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
2639 {
2640 ngx_http_core_loc_conf_t *lcf = conf;
2641
2642 char *rv;
2643 ngx_conf_t save;
2644
2645 if (lcf->types == NULL) {
2646 lcf->types = ngx_array_create(cf->pool, 64, sizeof(ngx_hash_key_t));
2647 if (lcf->types == NULL) {
2648 return NGX_CONF_ERROR;
2649 }
2650 }
2651
2652 save = *cf;
2653 cf->handler = ngx_http_core_type;
2654 cf->handler_conf = conf;
2655
2656 rv = ngx_conf_parse(cf, NULL);
2657
2658 *cf = save;
2659
2660 return rv;
2661 }
2662
2663
2664 static char *
2665 ngx_http_core_type(ngx_conf_t *cf, ngx_command_t *dummy, void *conf)
2666 {
2667 ngx_http_core_loc_conf_t *lcf = conf;
2668
2669 ngx_str_t *value, *content_type, *old, file;
2670 ngx_uint_t i, n, hash;
2671 ngx_hash_key_t *type;
2672
2673 value = cf->args->elts;
2674
2675 if (ngx_strcmp(value[0].data, "include") == 0) {
2676 file = value[1];
2677
2678 if (ngx_conf_full_name(cf->cycle, &file, 1) != NGX_OK) {
2679 return NGX_CONF_ERROR;
2680 }
2681
2682 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cf->log, 0, "include %s", file.data);
2683
2684 return ngx_conf_parse(cf, &file);
2685 }
2686
2687 content_type = ngx_palloc(cf->pool, sizeof(ngx_str_t));
2688 if (content_type == NULL) {
2689 return NGX_CONF_ERROR;
2690 }
2691
2692 *content_type = value[0];
2693
2694 for (i = 1; i < cf->args->nelts; i++) {
2695
2696 hash = ngx_hash_strlow(value[i].data, value[i].data, value[i].len);
2697
2698 type = lcf->types->elts;
2699 for (n = 0; n < lcf->types->nelts; n++) {
2700 if (ngx_strcmp(value[i].data, type[n].key.data) == 0) {
2701 old = type[n].value;
2702 type[n].value = content_type;
2703
2704 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
2705 "duplicate extention \"%V\", "
2706 "content type: \"%V\", "
2707 "old content type: \"%V\"",
2708 &value[i], content_type, old);
2709 continue;
2710 }
2711 }
2712
2713
2714 type = ngx_array_push(lcf->types);
2715 if (type == NULL) {
2716 return NGX_CONF_ERROR;
2717 }
2718
2719 type->key = value[i];
2720 type->key_hash = hash;
2721 type->value = content_type;
2722 }
2723
2724 return NGX_CONF_OK;
2725 }
2726
2727
2728 static ngx_int_t
2729 ngx_http_core_preconfiguration(ngx_conf_t *cf)
2730 {
2731 return ngx_http_variables_add_core_vars(cf);
2732 }
2733
2734
2735 static void *
2736 ngx_http_core_create_main_conf(ngx_conf_t *cf)
2737 {
2738 ngx_http_core_main_conf_t *cmcf;
2739
2740 cmcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_core_main_conf_t));
2741 if (cmcf == NULL) {
2742 return NULL;
2743 }
2744
2745 if (ngx_array_init(&cmcf->servers, cf->pool, 4,
2746 sizeof(ngx_http_core_srv_conf_t *))
2747 != NGX_OK)
2748 {
2749 return NULL;
2750 }
2751
2752 cmcf->server_names_hash_max_size = NGX_CONF_UNSET_UINT;
2753 cmcf->server_names_hash_bucket_size = NGX_CONF_UNSET_UINT;
2754
2755 cmcf->variables_hash_max_size = NGX_CONF_UNSET_UINT;
2756 cmcf->variables_hash_bucket_size = NGX_CONF_UNSET_UINT;
2757
2758 return cmcf;
2759 }
2760
2761
2762 static char *
2763 ngx_http_core_init_main_conf(ngx_conf_t *cf, void *conf)
2764 {
2765 ngx_http_core_main_conf_t *cmcf = conf;
2766
2767 if (cmcf->server_names_hash_max_size == NGX_CONF_UNSET_UINT) {
2768 cmcf->server_names_hash_max_size = 512;
2769 }
2770
2771 if (cmcf->server_names_hash_bucket_size == NGX_CONF_UNSET_UINT) {
2772 cmcf->server_names_hash_bucket_size = ngx_cacheline_size;
2773 }
2774
2775 cmcf->server_names_hash_bucket_size =
2776 ngx_align(cmcf->server_names_hash_bucket_size, ngx_cacheline_size);
2777
2778
2779 if (cmcf->variables_hash_max_size == NGX_CONF_UNSET_UINT) {
2780 cmcf->variables_hash_max_size = 512;
2781 }
2782
2783 if (cmcf->variables_hash_bucket_size == NGX_CONF_UNSET_UINT) {
2784 cmcf->variables_hash_bucket_size = 64;
2785 }
2786
2787 cmcf->variables_hash_bucket_size =
2788 ngx_align(cmcf->variables_hash_bucket_size, ngx_cacheline_size);
2789
2790 return NGX_CONF_OK;
2791 }
2792
2793
2794 static void *
2795 ngx_http_core_create_srv_conf(ngx_conf_t *cf)
2796 {
2797 ngx_http_core_srv_conf_t *cscf;
2798
2799 cscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_core_srv_conf_t));
2800 if (cscf == NULL) {
2801 return NULL;
2802 }
2803
2804 /*
2805 * set by ngx_pcalloc():
2806 *
2807 * conf->client_large_buffers.num = 0;
2808 */
2809
2810 if (ngx_array_init(&cscf->listen, cf->temp_pool, 4,
2811 sizeof(ngx_http_listen_t))
2812 != NGX_OK)
2813 {
2814 return NULL;
2815 }
2816
2817 if (ngx_array_init(&cscf->server_names, cf->temp_pool, 4,
2818 sizeof(ngx_http_server_name_t))
2819 != NGX_OK)
2820 {
2821 return NULL;
2822 }
2823
2824 cscf->connection_pool_size = NGX_CONF_UNSET_SIZE;
2825 cscf->request_pool_size = NGX_CONF_UNSET_SIZE;
2826 cscf->client_header_timeout = NGX_CONF_UNSET_MSEC;
2827 cscf->client_header_buffer_size = NGX_CONF_UNSET_SIZE;
2828 cscf->ignore_invalid_headers = NGX_CONF_UNSET;
2829 cscf->merge_slashes = NGX_CONF_UNSET;
2830 cscf->underscores_in_headers = NGX_CONF_UNSET;
2831
2832 return cscf;
2833 }
2834
2835
2836 static char *
2837 ngx_http_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
2838 {
2839 ngx_http_core_srv_conf_t *prev = parent;
2840 ngx_http_core_srv_conf_t *conf = child;
2841
2842 ngx_http_listen_t *ls;
2843 struct sockaddr_in *sin;
2844 ngx_http_server_name_t *sn;
2845
2846 /* TODO: it does not merge, it inits only */
2847
2848 if (conf->listen.nelts == 0) {
2849 ls = ngx_array_push(&conf->listen);
2850 if (ls == NULL) {
2851 return NGX_CONF_ERROR;
2852 }
2853
2854 ngx_memzero(ls, sizeof(ngx_http_listen_t));
2855
2856 sin = (struct sockaddr_in *) &ls->sockaddr;
2857
2858 sin->sin_family = AF_INET;
2859 #if (NGX_WIN32)
2860 sin->sin_port = htons(80);
2861 #else
2862 sin->sin_port = htons((getuid() == 0) ? 80 : 8000);
2863 #endif
2864 sin->sin_addr.s_addr = INADDR_ANY;
2865
2866 ls->socklen = sizeof(struct sockaddr_in);
2867
2868 ls->conf.backlog = NGX_LISTEN_BACKLOG;
2869 ls->conf.rcvbuf = -1;
2870 ls->conf.sndbuf = -1;
2871 ls->conf.wildcard = 1;
2872
2873 (void) ngx_sock_ntop((struct sockaddr *) &ls->sockaddr, ls->conf.addr,
2874 NGX_SOCKADDR_STRLEN, 1);
2875 }
2876
2877 if (conf->server_name.data == NULL) {
2878 conf->server_name = cf->cycle->hostname;
2879
2880 sn = ngx_array_push(&conf->server_names);
2881 if (sn == NULL) {
2882 return NGX_CONF_ERROR;
2883 }
2884
2885 #if (NGX_PCRE)
2886 sn->regex = NULL;
2887 sn->captures = 0;
2888 #endif
2889 sn->core_srv_conf = conf;
2890 sn->name.len = conf->server_name.len;
2891 sn->name.data = conf->server_name.data;
2892 }
2893
2894 ngx_conf_merge_size_value(conf->connection_pool_size,
2895 prev->connection_pool_size, 256);
2896 ngx_conf_merge_size_value(conf->request_pool_size,
2897 prev->request_pool_size, 4096);
2898 ngx_conf_merge_msec_value(conf->client_header_timeout,
2899 prev->client_header_timeout, 60000);
2900 ngx_conf_merge_size_value(conf->client_header_buffer_size,
2901 prev->client_header_buffer_size, 1024);
2902 ngx_conf_merge_bufs_value(conf->large_client_header_buffers,
2903 prev->large_client_header_buffers,
2904 4, ngx_pagesize);
2905
2906 if (conf->large_client_header_buffers.size < conf->connection_pool_size) {
2907 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2908 "the \"large_client_header_buffers\" size must be "
2909 "equal to or bigger than \"connection_pool_size\"");
2910 return NGX_CONF_ERROR;
2911 }
2912
2913 ngx_conf_merge_value(conf->ignore_invalid_headers,
2914 prev->ignore_invalid_headers, 1);
2915
2916 ngx_conf_merge_value(conf->merge_slashes, prev->merge_slashes, 1);
2917
2918 ngx_conf_merge_value(conf->underscores_in_headers,
2919 prev->underscores_in_headers, 0);
2920
2921 return NGX_CONF_OK;
2922 }
2923
2924
2925 static void *
2926 ngx_http_core_create_loc_conf(ngx_conf_t *cf)
2927 {
2928 ngx_http_core_loc_conf_t *lcf;
2929
2930 lcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_core_loc_conf_t));
2931 if (lcf == NULL) {
2932 return NULL;
2933 }
2934
2935 /*
2936 * set by ngx_pcalloc():
2937 *
2938 * lcf->root = { 0, NULL };
2939 * lcf->limit_except = 0;
2940 * lcf->post_action = { 0, NULL };
2941 * lcf->types = NULL;
2942 * lcf->default_type = { 0, NULL };
2943 * lcf->error_log = NULL;
2944 * lcf->error_pages = NULL;
2945 * lcf->try_files = NULL;
2946 * lcf->client_body_path = NULL;
2947 * lcf->regex = NULL;
2948 * lcf->exact_match = 0;
2949 * lcf->auto_redirect = 0;
2950 * lcf->alias = 0;
2951 * lcf->gzip_proxied = 0;
2952 */
2953
2954 lcf->client_max_body_size = NGX_CONF_UNSET;
2955 lcf->client_body_buffer_size = NGX_CONF_UNSET_SIZE;
2956 lcf->client_body_timeout = NGX_CONF_UNSET_MSEC;
2957 lcf->satisfy = NGX_CONF_UNSET_UINT;
2958 lcf->if_modified_since = NGX_CONF_UNSET_UINT;
2959 lcf->client_body_in_file_only = NGX_CONF_UNSET_UINT;
2960 lcf->client_body_in_single_buffer = NGX_CONF_UNSET;
2961 lcf->internal = NGX_CONF_UNSET;
2962 lcf->sendfile = NGX_CONF_UNSET;
2963 lcf->sendfile_max_chunk = NGX_CONF_UNSET_SIZE;
2964 #if (NGX_HAVE_FILE_AIO)
2965 lcf->aio = NGX_CONF_UNSET;
2966 #endif
2967 lcf->read_ahead = NGX_CONF_UNSET_SIZE;
2968 lcf->directio = NGX_CONF_UNSET;
2969 lcf->directio_alignment = NGX_CONF_UNSET;
2970 lcf->tcp_nopush = NGX_CONF_UNSET;
2971 lcf->tcp_nodelay = NGX_CONF_UNSET;
2972 lcf->send_timeout = NGX_CONF_UNSET_MSEC;
2973 lcf->send_lowat = NGX_CONF_UNSET_SIZE;
2974 lcf->postpone_output = NGX_CONF_UNSET_SIZE;
2975 lcf->limit_rate = NGX_CONF_UNSET_SIZE;
2976 lcf->limit_rate_after = NGX_CONF_UNSET_SIZE;
2977 lcf->keepalive_timeout = NGX_CONF_UNSET_MSEC;
2978 lcf->keepalive_header = NGX_CONF_UNSET;
2979 lcf->keepalive_requests = NGX_CONF_UNSET_UINT;
2980 lcf->lingering_time = NGX_CONF_UNSET_MSEC;
2981 lcf->lingering_timeout = NGX_CONF_UNSET_MSEC;
2982 lcf->resolver_timeout = NGX_CONF_UNSET_MSEC;
2983 lcf->reset_timedout_connection = NGX_CONF_UNSET;
2984 lcf->server_name_in_redirect = NGX_CONF_UNSET;
2985 lcf->port_in_redirect = NGX_CONF_UNSET;
2986 lcf->msie_padding = NGX_CONF_UNSET;
2987 lcf->msie_refresh = NGX_CONF_UNSET;
2988 lcf->log_not_found = NGX_CONF_UNSET;
2989 lcf->log_subrequest = NGX_CONF_UNSET;
2990 lcf->recursive_error_pages = NGX_CONF_UNSET;
2991 lcf->server_tokens = NGX_CONF_UNSET;
2992 lcf->types_hash_max_size = NGX_CONF_UNSET_UINT;
2993 lcf->types_hash_bucket_size = NGX_CONF_UNSET_UINT;
2994
2995 lcf->open_file_cache = NGX_CONF_UNSET_PTR;
2996 lcf->open_file_cache_valid = NGX_CONF_UNSET;
2997 lcf->open_file_cache_min_uses = NGX_CONF_UNSET_UINT;
2998 lcf->open_file_cache_errors = NGX_CONF_UNSET;
2999 lcf->open_file_cache_events = NGX_CONF_UNSET;
3000
3001 #if (NGX_HTTP_GZIP)
3002 lcf->gzip_vary = NGX_CONF_UNSET;
3003 lcf->gzip_http_version = NGX_CONF_UNSET_UINT;
3004 #if (NGX_PCRE)
3005 lcf->gzip_disable = NGX_CONF_UNSET_PTR;
3006 lcf->gzip_disable_msie6 = 3;
3007 #endif
3008 #endif
3009
3010 return lcf;
3011 }
3012
3013
3014 static ngx_str_t ngx_http_core_text_html_type = ngx_string("text/html");
3015 static ngx_str_t ngx_http_core_image_gif_type = ngx_string("image/gif");
3016 static ngx_str_t ngx_http_core_image_jpeg_type = ngx_string("image/jpeg");
3017
3018 static ngx_hash_key_t ngx_http_core_default_types[] = {
3019 { ngx_string("html"), 0, &ngx_http_core_text_html_type },
3020 { ngx_string("gif"), 0, &ngx_http_core_image_gif_type },
3021 { ngx_string("jpg"), 0, &ngx_http_core_image_jpeg_type },
3022 { ngx_null_string, 0, NULL }
3023 };
3024
3025
3026 static char *
3027 ngx_http_core_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
3028 {
3029 ngx_http_core_loc_conf_t *prev = parent;
3030 ngx_http_core_loc_conf_t *conf = child;
3031
3032 ngx_uint_t i;
3033 ngx_hash_key_t *type;
3034 ngx_hash_init_t types_hash;
3035
3036 if (conf->root.data == NULL) {
3037
3038 conf->alias = prev->alias;
3039 conf->root = prev->root;
3040 conf->root_lengths = prev->root_lengths;
3041 conf->root_values = prev->root_values;
3042
3043 if (prev->root.data == NULL) {
3044 conf->root.len = sizeof("html") - 1;
3045 conf->root.data = (u_char *) "html";
3046
3047 if (ngx_conf_full_name(cf->cycle, &conf->root, 0) != NGX_OK) {
3048 return NGX_CONF_ERROR;
3049 }
3050 }
3051 }
3052
3053 if (conf->post_action.data == NULL) {
3054 conf->post_action = prev->post_action;
3055 }
3056
3057 ngx_conf_merge_uint_value(conf->types_hash_max_size,
3058 prev->types_hash_max_size, 1024);
3059
3060 ngx_conf_merge_uint_value(conf->types_hash_bucket_size,
3061 prev->types_hash_bucket_size,
3062 ngx_cacheline_size);
3063
3064 conf->types_hash_bucket_size = ngx_align(conf->types_hash_bucket_size,
3065 ngx_cacheline_size);
3066
3067 /*
3068 * the special handling the "types" directive in the "http" section
3069 * to inherit the http's conf->types_hash to all servers
3070 */
3071
3072 if (prev->types && prev->types_hash.buckets == NULL) {
3073
3074 types_hash.hash = &prev->types_hash;
3075 types_hash.key = ngx_hash_key_lc;
3076 types_hash.max_size = conf->types_hash_max_size;
3077 types_hash.bucket_size = conf->types_hash_bucket_size;
3078 types_hash.name = "types_hash";
3079 types_hash.pool = cf->pool;
3080 types_hash.temp_pool = NULL;
3081
3082 if (ngx_hash_init(&types_hash, prev->types->elts, prev->types->nelts)
3083 != NGX_OK)
3084 {
3085 return NGX_CONF_ERROR;
3086 }
3087 }
3088
3089 if (conf->types == NULL) {
3090 conf->types = prev->types;
3091 conf->types_hash = prev->types_hash;
3092 }
3093
3094 if (conf->types == NULL) {
3095 conf->types = ngx_array_create(cf->pool, 4, sizeof(ngx_hash_key_t));
3096 if (conf->types == NULL) {
3097 return NGX_CONF_ERROR;
3098 }
3099
3100 for (i = 0; ngx_http_core_default_types[i].key.len; i++) {
3101 type = ngx_array_push(conf->types);
3102 if (type == NULL) {
3103 return NGX_CONF_ERROR;
3104 }
3105
3106 type->key = ngx_http_core_default_types[i].key;
3107 type->key_hash =
3108 ngx_hash_key_lc(ngx_http_core_default_types[i].key.data,
3109 ngx_http_core_default_types[i].key.len);
3110 type->value = ngx_http_core_default_types[i].value;
3111 }
3112 }
3113
3114 if (conf->types_hash.buckets == NULL) {
3115
3116 types_hash.hash = &conf->types_hash;
3117 types_hash.key = ngx_hash_key_lc;
3118 types_hash.max_size = conf->types_hash_max_size;
3119 types_hash.bucket_size = conf->types_hash_bucket_size;
3120 types_hash.name = "mime_types_hash";
3121 types_hash.pool = cf->pool;
3122 types_hash.temp_pool = NULL;
3123
3124 if (ngx_hash_init(&types_hash, conf->types->elts, conf->types->nelts)
3125 != NGX_OK)
3126 {
3127 return NGX_CONF_ERROR;
3128 }
3129 }
3130
3131 if (conf->error_log == NULL) {
3132 if (prev->error_log) {
3133 conf->error_log = prev->error_log;
3134 } else {
3135 conf->error_log = &cf->cycle->new_log;
3136 }
3137 }
3138
3139 if (conf->error_pages == NULL && prev->error_pages) {
3140 conf->error_pages = prev->error_pages;
3141 }
3142
3143 ngx_conf_merge_str_value(conf->default_type,
3144 prev->default_type, "text/plain");
3145
3146 ngx_conf_merge_off_value(conf->client_max_body_size,
3147 prev->client_max_body_size, 1 * 1024 * 1024);
3148 ngx_conf_merge_size_value(conf->client_body_buffer_size,
3149 prev->client_body_buffer_size,
3150 (size_t) 2 * ngx_pagesize);
3151 ngx_conf_merge_msec_value(conf->client_body_timeout,
3152 prev->client_body_timeout, 60000);
3153
3154 ngx_conf_merge_uint_value(conf->satisfy, prev->satisfy,
3155 NGX_HTTP_SATISFY_ALL);
3156 ngx_conf_merge_uint_value(conf->if_modified_since, prev->if_modified_since,
3157 NGX_HTTP_IMS_EXACT);
3158 ngx_conf_merge_uint_value(conf->client_body_in_file_only,
3159 prev->client_body_in_file_only, 0);
3160 ngx_conf_merge_value(conf->client_body_in_single_buffer,
3161 prev->client_body_in_single_buffer, 0);
3162 ngx_conf_merge_value(conf->internal, prev->internal, 0);
3163 ngx_conf_merge_value(conf->sendfile, prev->sendfile, 0);
3164 ngx_conf_merge_size_value(conf->sendfile_max_chunk,
3165 prev->sendfile_max_chunk, 0);
3166 #if (NGX_HAVE_FILE_AIO)
3167 ngx_conf_merge_value(conf->aio, prev->aio, 0);
3168 #endif
3169 ngx_conf_merge_size_value(conf->read_ahead, prev->read_ahead, 0);
3170 ngx_conf_merge_off_value(conf->directio, prev->directio,
3171 NGX_MAX_OFF_T_VALUE);
3172 ngx_conf_merge_off_value(conf->directio_alignment, prev->directio_alignment,
3173 512);
3174 ngx_conf_merge_value(conf->tcp_nopush, prev->tcp_nopush, 0);
3175 ngx_conf_merge_value(conf->tcp_nodelay, prev->tcp_nodelay, 1);
3176
3177 ngx_conf_merge_msec_value(conf->send_timeout, prev->send_timeout, 60000);
3178 ngx_conf_merge_size_value(conf->send_lowat, prev->send_lowat, 0);
3179 ngx_conf_merge_size_value(conf->postpone_output, prev->postpone_output,
3180 1460);
3181 ngx_conf_merge_size_value(conf->limit_rate, prev->limit_rate, 0);
3182 ngx_conf_merge_size_value(conf->limit_rate_after, prev->limit_rate_after,
3183 0);
3184 ngx_conf_merge_msec_value(conf->keepalive_timeout,
3185 prev->keepalive_timeout, 75000);
3186 ngx_conf_merge_sec_value(conf->keepalive_header,
3187 prev->keepalive_header, 0);
3188 ngx_conf_merge_uint_value(conf->keepalive_requests,
3189 prev->keepalive_requests, 100);
3190 ngx_conf_merge_msec_value(conf->lingering_time,
3191 prev->lingering_time, 30000);
3192 ngx_conf_merge_msec_value(conf->lingering_timeout,
3193 prev->lingering_timeout, 5000);
3194 ngx_conf_merge_msec_value(conf->resolver_timeout,
3195 prev->resolver_timeout, 30000);
3196
3197 if (conf->resolver == NULL) {
3198
3199 if (prev->resolver == NULL) {
3200
3201 /*
3202 * create dummy resolver in http {} context
3203 * to inherit it in all servers
3204 */
3205
3206 prev->resolver = ngx_resolver_create(cf, NULL);
3207 if (prev->resolver == NULL) {
3208 return NGX_CONF_ERROR;
3209 }
3210 }
3211
3212 conf->resolver = prev->resolver;
3213 }
3214
3215 if (ngx_conf_merge_path_value(cf, &conf->client_body_temp_path,
3216 prev->client_body_temp_path,
3217 &ngx_http_client_temp_path)
3218 != NGX_OK)
3219 {
3220 return NGX_CONF_ERROR;
3221 }
3222
3223 ngx_conf_merge_value(conf->reset_timedout_connection,
3224 prev->reset_timedout_connection, 0);
3225 ngx_conf_merge_value(conf->server_name_in_redirect,
3226 prev->server_name_in_redirect, 1);
3227 ngx_conf_merge_value(conf->port_in_redirect, prev->port_in_redirect, 1);
3228 ngx_conf_merge_value(conf->msie_padding, prev->msie_padding, 1);
3229 ngx_conf_merge_value(conf->msie_refresh, prev->msie_refresh, 0);
3230 ngx_conf_merge_value(conf->log_not_found, prev->log_not_found, 1);
3231 ngx_conf_merge_value(conf->log_subrequest, prev->log_subrequest, 0);
3232 ngx_conf_merge_value(conf->recursive_error_pages,
3233 prev->recursive_error_pages, 0);
3234 ngx_conf_merge_value(conf->server_tokens, prev->server_tokens, 1);
3235
3236 ngx_conf_merge_ptr_value(conf->open_file_cache,
3237 prev->open_file_cache, NULL);
3238
3239 ngx_conf_merge_sec_value(conf->open_file_cache_valid,
3240 prev->open_file_cache_valid, 60);
3241
3242 ngx_conf_merge_uint_value(conf->open_file_cache_min_uses,
3243 prev->open_file_cache_min_uses, 1);
3244
3245 ngx_conf_merge_sec_value(conf->open_file_cache_errors,
3246 prev->open_file_cache_errors, 0);
3247
3248 ngx_conf_merge_sec_value(conf->open_file_cache_events,
3249 prev->open_file_cache_events, 0);
3250 #if (NGX_HTTP_GZIP)
3251
3252 ngx_conf_merge_value(conf->gzip_vary, prev->gzip_vary, 0);
3253 ngx_conf_merge_uint_value(conf->gzip_http_version, prev->gzip_http_version,
3254 NGX_HTTP_VERSION_11);
3255 ngx_conf_merge_bitmask_value(conf->gzip_proxied, prev->gzip_proxied,
3256 (NGX_CONF_BITMASK_SET|NGX_HTTP_GZIP_PROXIED_OFF));
3257
3258 #if (NGX_PCRE)
3259 ngx_conf_merge_ptr_value(conf->gzip_disable, prev->gzip_disable, NULL);
3260 #endif
3261
3262 if (conf->gzip_disable_msie6 == 3) {
3263 conf->gzip_disable_msie6 =
3264 (prev->gzip_disable_msie6 == 3) ? 0 : prev->gzip_disable_msie6;
3265 }
3266
3267 #endif
3268
3269 return NGX_CONF_OK;
3270 }
3271
3272
3273 static char *
3274 ngx_http_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3275 {
3276 ngx_http_core_srv_conf_t *scf = conf;
3277
3278 ngx_str_t *value, size;
3279 ngx_url_t u;
3280 ngx_uint_t n;
3281 ngx_http_listen_t *ls;
3282
3283 /*
3284 * TODO: check duplicate 'listen' directives,
3285 * add resolved name to server names ???
3286 */
3287
3288 value = cf->args->elts;
3289
3290 ngx_memzero(&u, sizeof(ngx_url_t));
3291
3292 u.url = value[1];
3293 u.listen = 1;
3294 u.default_port = 80;
3295
3296 if (ngx_parse_url(cf->pool, &u) != NGX_OK) {
3297 if (u.err) {
3298 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3299 "%s in \"%V\" of the \"listen\" directive",
3300 u.err, &u.url);
3301 }
3302
3303 return NGX_CONF_ERROR;
3304 }
3305
3306 ls = ngx_array_push(&scf->listen);
3307 if (ls == NULL) {
3308 return NGX_CONF_ERROR;
3309 }
3310
3311 ngx_memzero(ls, sizeof(ngx_http_listen_t));
3312
3313 ngx_memcpy(ls->sockaddr, u.sockaddr, u.socklen);
3314
3315 ls->socklen = u.socklen;
3316 ls->file_name = cf->conf_file->file.name.data;
3317 ls->line = cf->conf_file->line;
3318 ls->conf.backlog = NGX_LISTEN_BACKLOG;
3319 ls->conf.rcvbuf = -1;
3320 ls->conf.sndbuf = -1;
3321 ls->conf.wildcard = u.wildcard;
3322
3323 (void) ngx_sock_ntop((struct sockaddr *) &ls->sockaddr, ls->conf.addr,
3324 NGX_SOCKADDR_STRLEN, 1);
3325
3326 if (cf->args->nelts == 2) {
3327 return NGX_CONF_OK;
3328 }
3329
3330 if (ngx_strcmp(value[2].data, "default") == 0) {
3331 ls->conf.default_server = 1;
3332 n = 3;
3333
3334 } else {
3335 n = 2;
3336 }
3337
3338 for ( /* void */ ; n < cf->args->nelts; n++) {
3339
3340 if (ls->conf.default_server == 0) {
3341 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3342 "\"%V\" parameter can be specified for "
3343 "the default \"listen\" directive only",
3344 &value[n]);
3345 return NGX_CONF_ERROR;
3346 }
3347
3348 if (ngx_strcmp(value[n].data, "bind") == 0) {
3349 ls->conf.bind = 1;
3350 continue;
3351 }
3352
3353 if (ngx_strncmp(value[n].data, "backlog=", 8) == 0) {
3354 ls->conf.backlog = ngx_atoi(value[n].data + 8, value[n].len - 8);
3355 ls->conf.bind = 1;
3356
3357 if (ls->conf.backlog == NGX_ERROR || ls->conf.backlog == 0) {
3358 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3359 "invalid backlog \"%V\"", &value[n]);
3360 return NGX_CONF_ERROR;
3361 }
3362
3363 continue;
3364 }
3365
3366 if (ngx_strncmp(value[n].data, "rcvbuf=", 7) == 0) {
3367 size.len = value[n].len - 7;
3368 size.data = value[n].data + 7;
3369
3370 ls->conf.rcvbuf = ngx_parse_size(&size);
3371 ls->conf.bind = 1;
3372
3373 if (ls->conf.rcvbuf == NGX_ERROR) {
3374 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3375 "invalid rcvbuf \"%V\"", &value[n]);
3376 return NGX_CONF_ERROR;
3377 }
3378
3379 continue;
3380 }
3381
3382 if (ngx_strncmp(value[n].data, "sndbuf=", 7) == 0) {
3383 size.len = value[n].len - 7;
3384 size.data = value[n].data + 7;
3385
3386 ls->conf.sndbuf = ngx_parse_size(&size);
3387 ls->conf.bind = 1;
3388
3389 if (ls->conf.sndbuf == NGX_ERROR) {
3390 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3391 "invalid sndbuf \"%V\"", &value[n]);
3392 return NGX_CONF_ERROR;
3393 }
3394
3395 continue;
3396 }
3397
3398 if (ngx_strncmp(value[n].data, "accept_filter=", 14) == 0) {
3399 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
3400 ls->conf.accept_filter = (char *) &value[n].data[14];
3401 ls->conf.bind = 1;
3402 #else
3403 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3404 "accept filters \"%V\" are not supported "
3405 "on this platform, ignored",
3406 &value[n]);
3407 #endif
3408 continue;
3409 }
3410
3411 if (ngx_strcmp(value[n].data, "deferred") == 0) {
3412 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
3413 ls->conf.deferred_accept = 1;
3414 ls->conf.bind = 1;
3415 #else
3416 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3417 "the deferred accept is not supported "
3418 "on this platform, ignored");
3419 #endif
3420 continue;
3421 }
3422
3423 if (ngx_strncmp(value[n].data, "ipv6only=o", 10) == 0) {
3424 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
3425 struct sockaddr *sa;
3426
3427 sa = (struct sockaddr *) ls->sockaddr;
3428
3429 if (sa->sa_family == AF_INET6) {
3430
3431 if (ngx_strcmp(&value[n].data[10], "n") == 0) {
3432 ls->conf.ipv6only = 1;
3433
3434 } else if (ngx_strcmp(&value[n].data[10], "ff") == 0) {
3435 ls->conf.ipv6only = 2;
3436
3437 } else {
3438 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3439 "invalid ipv6only flags \"%s\"",
3440 &value[n].data[9]);
3441 return NGX_CONF_ERROR;
3442 }
3443
3444 ls->conf.bind = 1;
3445
3446 } else {
3447 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3448 "ipv6only is not supported "
3449 "on addr \"%s\", ignored",
3450 ls->conf.addr);
3451 }
3452
3453 continue;
3454 #else
3455 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3456 "bind ipv6only is not supported "
3457 "on this platform");
3458 return NGX_CONF_ERROR;
3459 #endif
3460 }
3461
3462 if (ngx_strcmp(value[n].data, "ssl") == 0) {
3463 #if (NGX_HTTP_SSL)
3464 ls->conf.ssl = 1;
3465 continue;
3466 #else
3467 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3468 "the \"ssl\" parameter requires "
3469 "ngx_http_ssl_module");
3470 return NGX_CONF_ERROR;
3471 #endif
3472 }
3473
3474 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3475 "the invalid \"%V\" parameter", &value[n]);
3476 return NGX_CONF_ERROR;
3477 }
3478
3479 return NGX_CONF_OK;
3480 }
3481
3482
3483 static char *
3484 ngx_http_core_server_name(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3485 {
3486 ngx_http_core_srv_conf_t *cscf = conf;
3487
3488 u_char ch;
3489 ngx_str_t *value, name;
3490 ngx_uint_t i;
3491 ngx_http_server_name_t *sn;
3492
3493 value = cf->args->elts;
3494
3495 ch = value[1].data[0];
3496
3497 if (cscf->server_name.data == NULL) {
3498 if (value[1].len) {
3499 name = value[1];
3500
3501 if (ch == '.') {
3502 name.len--;
3503 name.data++;
3504 }
3505
3506 cscf->server_name.len = name.len;
3507 cscf->server_name.data = ngx_pstrdup(cf->pool, &name);
3508 if (cscf->server_name.data == NULL) {
3509 return NGX_CONF_ERROR;
3510 }
3511
3512 } else {
3513 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3514 "the first server name must not be empty");
3515 return NGX_CONF_ERROR;
3516 }
3517 }
3518
3519 for (i = 1; i < cf->args->nelts; i++) {
3520
3521 ch = value[i].data[0];
3522
3523 if ((ch == '*' && (value[i].len < 3 || value[i].data[1] != '.'))
3524 || (ch == '.' && value[i].len < 2))
3525 {
3526 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3527 "server name \"%V\" is invalid", &value[i]);
3528 return NGX_CONF_ERROR;
3529 }
3530
3531 if (ngx_strchr(value[i].data, '/')) {
3532 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
3533 "server name \"%V\" has strange symbols",
3534 &value[i]);
3535 }
3536
3537 if (value[i].len == 1 && ch == '*') {
3538 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3539 "\"server_name *\" is unsupported, use "
3540 "\"server_name_in_redirect off\" instead");
3541 return NGX_CONF_ERROR;
3542 }
3543
3544 sn = ngx_array_push(&cscf->server_names);
3545 if (sn == NULL) {
3546 return NGX_CONF_ERROR;
3547 }
3548
3549 #if (NGX_PCRE)
3550 sn->regex = NULL;
3551 sn->captures = 0;
3552 #endif
3553 sn->core_srv_conf = cscf;
3554 sn->name = value[i];
3555
3556 if (value[i].data[0] != '~') {
3557 continue;
3558 }
3559
3560 #if (NGX_PCRE)
3561 {
3562 ngx_str_t err;
3563 u_char errstr[NGX_MAX_CONF_ERRSTR];
3564
3565 if (value[i].len == 1) {
3566 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3567 "empty regex in server name \"%V\"", &value[i]);
3568 return NGX_CONF_ERROR;
3569 }
3570
3571 err.len = NGX_MAX_CONF_ERRSTR;
3572 err.data = errstr;
3573
3574 value[i].len--;
3575 value[i].data++;
3576
3577 sn->regex = ngx_regex_compile(&value[i], 0, cf->pool, &err);
3578
3579 if (sn->regex == NULL) {
3580 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s", err.data);
3581 return NGX_CONF_ERROR;
3582 }
3583
3584 sn->captures = (ngx_regex_capture_count(sn->regex) > 0);
3585 sn->name = value[i];
3586 }
3587 #else
3588 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3589 "the using of the regex \"%V\" "
3590 "requires PCRE library", &value[i]);
3591
3592 return NGX_CONF_ERROR;
3593 #endif
3594 }
3595
3596 return NGX_CONF_OK;
3597 }
3598
3599
3600 static char *
3601 ngx_http_core_root(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3602 {
3603 ngx_http_core_loc_conf_t *lcf = conf;
3604
3605 ngx_str_t *value;
3606 ngx_uint_t alias, n;
3607 ngx_http_script_compile_t sc;
3608
3609 alias = (cmd->name.len == sizeof("alias") - 1) ? 1 : 0;
3610
3611 if (lcf->root.data) {
3612
3613 /* the (ngx_uint_t) cast is required by gcc 2.7.2.3 */
3614
3615 if ((ngx_uint_t) lcf->alias == alias) {
3616 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3617 "\"%V\" directive is duplicate",
3618 &cmd->name);
3619 } else {
3620 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3621 "\"%V\" directive is duplicate, "
3622 "\"%s\" directive is specified before",
3623 &cmd->name, lcf->alias ? "alias" : "root");
3624 }
3625
3626 return NGX_CONF_ERROR;
3627 }
3628
3629 if (lcf->named && alias) {
3630 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3631 "the \"alias\" directive may not be used "
3632 "inside named location");
3633
3634 return NGX_CONF_ERROR;
3635 }
3636
3637 value = cf->args->elts;
3638
3639 if (ngx_strstr(value[1].data, "$document_root")
3640 || ngx_strstr(value[1].data, "${document_root}"))
3641 {
3642 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3643 "the $document_root variable may not be used "
3644 "in the \"%V\" directive",
3645 &cmd->name);
3646
3647 return NGX_CONF_ERROR;
3648 }
3649
3650 if (ngx_strstr(value[1].data, "$realpath_root")
3651 || ngx_strstr(value[1].data, "${realpath_root}"))
3652 {
3653 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3654 "the $realpath_root variable may not be used "
3655 "in the \"%V\" directive",
3656 &cmd->name);
3657
3658 return NGX_CONF_ERROR;
3659 }
3660
3661 lcf->alias = alias;
3662 lcf->root = value[1];
3663
3664 if (!alias && lcf->root.data[lcf->root.len - 1] == '/') {
3665 lcf->root.len--;
3666 }
3667
3668 if (lcf->root.data[0] != '$') {
3669 if (ngx_conf_full_name(cf->cycle, &lcf->root, 0) != NGX_OK) {
3670 return NGX_CONF_ERROR;
3671 }
3672 }
3673
3674 n = ngx_http_script_variables_count(&lcf->root);
3675
3676 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
3677
3678 if (n) {
3679 sc.cf = cf;
3680 sc.source = &lcf->root;
3681 sc.lengths = &lcf->root_lengths;
3682 sc.values = &lcf->root_values;
3683 sc.variables = n;
3684 sc.complete_lengths = 1;
3685 sc.complete_values = 1;
3686
3687 if (ngx_http_script_compile(&sc) != NGX_OK) {
3688 return NGX_CONF_ERROR;
3689 }
3690 }
3691
3692 #if (NGX_PCRE)
3693
3694 if (alias && lcf->regex
3695 && (ngx_regex_capture_count(lcf->regex) <= 0 || sc.ncaptures == 0))
3696 {
3697 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3698 "the \"alias\" directive must use captures "
3699 "inside location given by regular expression");
3700
3701 return NGX_CONF_ERROR;
3702 }
3703
3704 #endif
3705
3706 return NGX_CONF_OK;
3707 }
3708
3709
3710 static ngx_http_method_name_t ngx_methods_names[] = {
3711 { (u_char *) "GET", (uint32_t) ~NGX_HTTP_GET },
3712 { (u_char *) "HEAD", (uint32_t) ~NGX_HTTP_HEAD },
3713 { (u_char *) "POST", (uint32_t) ~NGX_HTTP_POST },
3714 { (u_char *) "PUT", (uint32_t) ~NGX_HTTP_PUT },
3715 { (u_char *) "DELETE", (uint32_t) ~NGX_HTTP_DELETE },
3716 { (u_char *) "MKCOL", (uint32_t) ~NGX_HTTP_MKCOL },
3717 { (u_char *) "COPY", (uint32_t) ~NGX_HTTP_COPY },
3718 { (u_char *) "MOVE", (uint32_t) ~NGX_HTTP_MOVE },
3719 { (u_char *) "OPTIONS", (uint32_t) ~NGX_HTTP_OPTIONS },
3720 { (u_char *) "PROPFIND" , (uint32_t) ~NGX_HTTP_PROPFIND },
3721 { (u_char *) "PROPPATCH", (uint32_t) ~NGX_HTTP_PROPPATCH },
3722 { (u_char *) "LOCK", (uint32_t) ~NGX_HTTP_LOCK },
3723 { (u_char *) "UNLOCK", (uint32_t) ~NGX_HTTP_UNLOCK },
3724 { NULL, 0 }
3725 };
3726
3727
3728 static char *
3729 ngx_http_core_limit_except(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3730 {
3731 ngx_http_core_loc_conf_t *pclcf = conf;
3732
3733 char *rv;
3734 void *mconf;
3735 ngx_str_t *value;
3736 ngx_uint_t i;
3737 ngx_conf_t save;
3738 ngx_http_module_t *module;
3739 ngx_http_conf_ctx_t *ctx, *pctx;
3740 ngx_http_method_name_t *name;
3741 ngx_http_core_loc_conf_t *clcf;
3742
3743 if (pclcf->limit_except) {
3744 return "duplicate";
3745 }
3746
3747 pclcf->limit_except = 0xffffffff;
3748
3749 value = cf->args->elts;
3750
3751 for (i = 1; i < cf->args->nelts; i++) {
3752 for (name = ngx_methods_names; name->name; name++) {
3753
3754 if (ngx_strcasecmp(value[i].data, name->name) == 0) {
3755 pclcf->limit_except &= name->method;
3756 goto next;
3757 }
3758 }
3759
3760 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3761 "invalid method \"%V\"", &value[i]);
3762 return NGX_CONF_ERROR;
3763
3764 next:
3765 continue;
3766 }
3767
3768 if (!(pclcf->limit_except & NGX_HTTP_GET)) {
3769 pclcf->limit_except &= (uint32_t) ~NGX_HTTP_HEAD;
3770 }
3771
3772 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t));
3773 if (ctx == NULL) {
3774 return NGX_CONF_ERROR;
3775 }
3776
3777 pctx = cf->ctx;
3778 ctx->main_conf = pctx->main_conf;
3779 ctx->srv_conf = pctx->srv_conf;
3780
3781 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
3782 if (ctx->loc_conf == NULL) {
3783 return NGX_CONF_ERROR;
3784 }
3785
3786 for (i = 0; ngx_modules[i]; i++) {
3787 if (ngx_modules[i]->type != NGX_HTTP_MODULE) {
3788 continue;
3789 }
3790
3791 module = ngx_modules[i]->ctx;
3792
3793 if (module->create_loc_conf) {
3794
3795 mconf = module->create_loc_conf(cf);
3796 if (mconf == NULL) {
3797 return NGX_CONF_ERROR;
3798 }
3799
3800 ctx->loc_conf[ngx_modules[i]->ctx_index] = mconf;
3801 }
3802 }
3803
3804
3805 clcf = ctx->loc_conf[ngx_http_core_module.ctx_index];
3806 pclcf->limit_except_loc_conf = ctx->loc_conf;
3807 clcf->loc_conf = ctx->loc_conf;
3808 clcf->name = pclcf->name;
3809 clcf->noname = 1;
3810
3811 if (ngx_http_add_location(cf, &pclcf->locations, clcf) != NGX_OK) {
3812 return NGX_CONF_ERROR;
3813 }
3814
3815 save = *cf;
3816 cf->ctx = ctx;
3817 cf->cmd_type = NGX_HTTP_LMT_CONF;
3818
3819 rv = ngx_conf_parse(cf, NULL);
3820
3821 *cf = save;
3822
3823 return rv;
3824 }
3825
3826
3827 static char *
3828 ngx_http_core_directio(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3829 {
3830 ngx_http_core_loc_conf_t *clcf = conf;
3831
3832 ngx_str_t *value;
3833
3834 if (clcf->directio != NGX_CONF_UNSET) {
3835 return "is duplicate";
3836 }
3837
3838 value = cf->args->elts;
3839
3840 if (ngx_strcmp(value[1].data, "off") == 0) {
3841 clcf->directio = NGX_OPEN_FILE_DIRECTIO_OFF;
3842 return NGX_CONF_OK;
3843 }
3844
3845 clcf->directio = ngx_parse_offset(&value[1]);
3846 if (clcf->directio == (off_t) NGX_ERROR) {
3847 return "invalid value";
3848 }
3849
3850 return NGX_CONF_OK;
3851 }
3852
3853
3854 static char *
3855 ngx_http_core_error_page(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3856 {
3857 ngx_http_core_loc_conf_t *lcf = conf;
3858
3859 u_char *p;
3860 ngx_int_t overwrite;
3861 ngx_str_t *value, uri, args;
3862 ngx_uint_t i, n;
3863 ngx_http_err_page_t *err;
3864 ngx_http_complex_value_t cv;
3865 ngx_http_compile_complex_value_t ccv;
3866
3867 if (lcf->error_pages == NULL) {
3868 lcf->error_pages = ngx_array_create(cf->pool, 4,
3869 sizeof(ngx_http_err_page_t));
3870 if (lcf->error_pages == NULL) {
3871 return NGX_CONF_ERROR;
3872 }
3873 }
3874
3875 value = cf->args->elts;
3876
3877 i = cf->args->nelts - 2;
3878
3879 if (value[i].data[0] == '=') {
3880 if (i == 1) {
3881 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3882 "invalid value \"%V\"", &value[i]);
3883 return NGX_CONF_ERROR;
3884 }
3885
3886 if (value[i].len > 1) {
3887 overwrite = ngx_atoi(&value[i].data[1], value[i].len - 1);
3888
3889 if (overwrite == NGX_ERROR) {
3890 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3891 "invalid value \"%V\"", &value[i]);
3892 return NGX_CONF_ERROR;
3893 }
3894
3895 } else {
3896 overwrite = 0;
3897 }
3898
3899 n = 2;
3900
3901 } else {
3902 overwrite = -1;
3903 n = 1;
3904 }
3905
3906 uri = value[cf->args->nelts - 1];
3907
3908 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
3909
3910 ccv.cf = cf;
3911 ccv.value = &uri;
3912 ccv.complex_value = &cv;
3913
3914 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
3915 return NGX_CONF_ERROR;
3916 }
3917
3918 args.len = 0;
3919 args.data = NULL;
3920
3921 if (cv.lengths == NULL && uri.data[0] == '/') {
3922 p = (u_char *) ngx_strchr(uri.data, '?');
3923
3924 if (p) {
3925 cv.value.len = p - uri.data;
3926 cv.value.data = uri.data;
3927 p++;
3928 args.len = (uri.data + uri.len) - p;
3929 args.data = p;
3930 }
3931 }
3932
3933 for (i = 1; i < cf->args->nelts - n; i++) {
3934 err = ngx_array_push(lcf->error_pages);
3935 if (err == NULL) {
3936 return NGX_CONF_ERROR;
3937 }
3938
3939 err->status = ngx_atoi(value[i].data, value[i].len);
3940
3941 if (err->status == NGX_ERROR || err->status == 499) {
3942 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3943 "invalid value \"%V\"", &value[i]);
3944 return NGX_CONF_ERROR;
3945 }
3946
3947 if (err->status < 400 || err->status > 599) {
3948 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
3949 "value \"%V\" must be between 400 and 599",
3950 &value[i]);
3951 return NGX_CONF_ERROR;
3952 }
3953
3954 if (overwrite >= 0) {
3955 err->overwrite = overwrite;
3956
3957 } else {
3958 switch (err->status) {
3959 case NGX_HTTP_TO_HTTPS:
3960 case NGX_HTTPS_CERT_ERROR:
3961 case NGX_HTTPS_NO_CERT:
3962 err->overwrite = NGX_HTTP_BAD_REQUEST;
3963 break;
3964
3965 default:
3966 err->overwrite = err->status;
3967 break;
3968 }
3969 }
3970
3971 err->value = cv;
3972 err->args = args;
3973 }
3974
3975 return NGX_CONF_OK;
3976 }
3977
3978
3979 static char *
3980 ngx_http_core_try_files(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
3981 {
3982 ngx_http_core_loc_conf_t *clcf = conf;
3983
3984 ngx_str_t *value;
3985 ngx_int_t code;
3986 ngx_uint_t i, n;
3987 ngx_http_try_file_t *tf;
3988 ngx_http_script_compile_t sc;
3989 ngx_http_core_main_conf_t *cmcf;
3990
3991 if (clcf->try_files) {
3992 return "is duplicate";
3993 }
3994
3995 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
3996
3997 cmcf->try_files = 1;
3998
3999 tf = ngx_pcalloc(cf->pool, cf->args->nelts * sizeof(ngx_http_try_file_t));
4000 if (tf == NULL) {
4001 return NGX_CONF_ERROR;
4002 }
4003
4004 clcf->try_files = tf;
4005
4006 value = cf->args->elts;
4007
4008 for (i = 0; i < cf->args->nelts - 1; i++) {
4009
4010 tf[i].name = value[i + 1];
4011
4012 if (tf[i].name.data[tf[i].name.len - 1] == '/') {
4013 tf[i].test_dir = 1;
4014 tf[i].name.len--;
4015 tf[i].name.data[tf[i].name.len] = '\0';
4016 }
4017
4018 n = ngx_http_script_variables_count(&tf[i].name);
4019
4020 if (n) {
4021 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
4022
4023 sc.cf = cf;
4024 sc.source = &tf[i].name;
4025 sc.lengths = &tf[i].lengths;
4026 sc.values = &tf[i].values;
4027 sc.variables = n;
4028 sc.complete_lengths = 1;
4029 sc.complete_values = 1;
4030
4031 if (ngx_http_script_compile(&sc) != NGX_OK) {
4032 return NGX_CONF_ERROR;
4033 }
4034
4035 } else {
4036 /* add trailing '\0' to length */
4037 tf[i].name.len++;
4038 }
4039 }
4040
4041 if (tf[i - 1].name.data[0] == '=') {
4042
4043 code = ngx_atoi(tf[i - 1].name.data + 1, tf[i - 1].name.len - 2);
4044
4045 if (code == NGX_ERROR) {
4046 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
4047 "invalid code \"%*s\"",
4048 tf[i - 1].name.len - 1, tf[i - 1].name.data);
4049 return NGX_CONF_ERROR;
4050 }
4051
4052 tf[i].code = code;
4053 }
4054
4055 return NGX_CONF_OK;
4056 }
4057
4058
4059 static char *
4060 ngx_http_core_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
4061 {
4062 ngx_http_core_loc_conf_t *lcf = conf;
4063
4064 time_t inactive;
4065 ngx_str_t *value, s;
4066 ngx_int_t max;
4067 ngx_uint_t i;
4068
4069 if (lcf->open_file_cache != NGX_CONF_UNSET_PTR) {
4070 return "is duplicate";
4071 }
4072
4073 value = cf->args->elts;
4074
4075 max = 0;
4076 inactive = 60;
4077
4078 for (i = 1; i < cf->args->nelts; i++) {
4079
4080 if (ngx_strncmp(value[i].data, "max=", 4) == 0) {
4081
4082 max = ngx_atoi(value[i].data + 4, value[i].len - 4);
4083 if (max == NGX_ERROR) {
4084 goto failed;
4085 }
4086
4087 continue;
4088 }
4089
4090 if (ngx_strncmp(value[i].data, "inactive=", 9) == 0) {
4091
4092 s.len = value[i].len - 9;
4093 s.data = value[i].data + 9;
4094
4095 inactive = ngx_parse_time(&s, 1);
4096 if (inactive < 0) {
4097 goto failed;
4098 }
4099
4100 continue;
4101 }
4102
4103 if (ngx_strcmp(value[i].data, "off") == 0) {
4104
4105 lcf->open_file_cache = NULL;
4106
4107 continue;
4108 }
4109
4110 failed:
4111
4112 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
4113 "invalid \"open_file_cache\" parameter \"%V\"",
4114 &value[i]);
4115 return NGX_CONF_ERROR;
4116 }
4117
4118 if (lcf->open_file_cache == NULL) {
4119 return NGX_CONF_OK;
4120 }
4121
4122 if (max == 0) {
4123 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
4124 "\"open_file_cache\" must have \"max\" parameter");
4125 return NGX_CONF_ERROR;
4126 }
4127
4128 lcf->open_file_cache = ngx_open_file_cache_init(cf->pool, max, inactive);
4129 if (lcf->open_file_cache) {
4130 return NGX_CONF_OK;
4131 }
4132
4133 return NGX_CONF_ERROR;
4134 }
4135
4136
4137 static char *
4138 ngx_http_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
4139 {
4140 ngx_http_core_loc_conf_t *lcf = conf;
4141
4142 ngx_str_t *value;
4143
4144 if (lcf->error_log) {
4145 return "is duplicate";
4146 }
4147
4148 value = cf->args->elts;
4149
4150 lcf->error_log = ngx_log_create(cf->cycle, &value[1]);
4151 if (lcf->error_log == NULL) {
4152 return NGX_CONF_ERROR;
4153 }
4154
4155 if (cf->args->nelts == 2) {
4156 lcf->error_log->log_level = NGX_LOG_ERR;
4157 return NGX_CONF_OK;
4158 }
4159
4160 return ngx_log_set_levels(cf, lcf->error_log);
4161 }
4162
4163
4164 static char *
4165 ngx_http_core_keepalive(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
4166 {
4167 ngx_http_core_loc_conf_t *lcf = conf;
4168
4169 ngx_str_t *value;
4170
4171 if (lcf->keepalive_timeout != NGX_CONF_UNSET_MSEC) {
4172 return "is duplicate";
4173 }
4174
4175 value = cf->args->elts;
4176
4177 lcf->keepalive_timeout = ngx_parse_time(&value[1], 0);
4178
4179 if (lcf->keepalive_timeout == (ngx_msec_t) NGX_ERROR) {
4180 return "invalid value";
4181 }
4182
4183 if (lcf->keepalive_timeout == (ngx_msec_t) NGX_PARSE_LARGE_TIME) {
4184 return "value must be less than 597 hours";
4185 }
4186
4187 if (cf->args->nelts == 2) {
4188 return NGX_CONF_OK;
4189 }
4190
4191 lcf->keepalive_header = ngx_parse_time(&value[2], 1);
4192
4193 if (lcf->keepalive_header == NGX_ERROR) {
4194 return "invalid value";
4195 }
4196
4197 if (lcf->keepalive_header == NGX_PARSE_LARGE_TIME) {
4198 return "value must be less than 68 years";
4199 }
4200
4201 return NGX_CONF_OK;
4202 }
4203
4204
4205 static char *
4206 ngx_http_core_internal(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
4207 {
4208 ngx_http_core_loc_conf_t *lcf = conf;
4209
4210 if (lcf->internal != NGX_CONF_UNSET) {
4211 return "is duplicate";
4212 }
4213
4214 lcf->internal = 1;
4215
4216 return NGX_CONF_OK;
4217 }
4218
4219
4220 static char *
4221 ngx_http_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
4222 {
4223 ngx_http_core_loc_conf_t *clcf = conf;
4224
4225 ngx_url_t u;
4226 ngx_str_t *value;
4227
4228 if (clcf->resolver) {
4229 return "is duplicate";
4230 }
4231
4232 value = cf->args->elts;
4233
4234 ngx_memzero(&u, sizeof(ngx_url_t));
4235
4236 u.host = value[1];
4237 u.port = 53;
4238
4239 if (ngx_inet_resolve_host(cf->pool, &u) != NGX_OK) {
4240 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%V: %s", &u.host, u.err);
4241 return NGX_CONF_ERROR;
4242 }
4243
4244 clcf->resolver = ngx_resolver_create(cf, &u.addrs[0]);
4245 if (clcf->resolver == NULL) {
4246 return NGX_OK;
4247 }
4248
4249 return NGX_CONF_OK;
4250 }
4251
4252
4253 #if (NGX_HTTP_GZIP)
4254
4255 static char *
4256 ngx_http_gzip_disable(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
4257 {
4258 ngx_http_core_loc_conf_t *clcf = conf;
4259
4260 #if (NGX_PCRE)
4261
4262 ngx_str_t err, *value;
4263 ngx_uint_t i;
4264 ngx_regex_elt_t *re;
4265 u_char errstr[NGX_MAX_CONF_ERRSTR];
4266
4267 if (clcf->gzip_disable == NGX_CONF_UNSET_PTR) {
4268 clcf->gzip_disable = ngx_array_create(cf->pool, 2,
4269 sizeof(ngx_regex_elt_t));
4270 if (clcf->gzip_disable == NULL) {
4271 return NGX_CONF_ERROR;
4272 }
4273 }
4274
4275 value = cf->args->elts;
4276
4277 err.len = NGX_MAX_CONF_ERRSTR;
4278 err.data = errstr;
4279
4280 for (i = 1; i < cf->args->nelts; i++) {
4281
4282 if (ngx_strcmp(value[1].data, "msie6") == 0) {
4283 clcf->gzip_disable_msie6 = 1;
4284 continue;
4285 }
4286
4287 re = ngx_array_push(clcf->gzip_disable);
4288 if (re == NULL) {
4289 return NGX_CONF_ERROR;
4290 }
4291
4292 re->regex = ngx_regex_compile(&value[i], NGX_REGEX_CASELESS, cf->pool,
4293 &err);
4294
4295 if (re->regex == NULL) {
4296 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s", err.data);
4297 return NGX_CONF_ERROR;
4298 }
4299
4300 re->name = value[i].data;
4301 }
4302
4303 return NGX_CONF_OK;
4304
4305 #else
4306 ngx_str_t *value;
4307
4308 value = cf->args->elts;
4309
4310 if (cf->args->nelts == 2 && ngx_strcmp(value[1].data, "msie6") == 0) {
4311 clcf->gzip_disable_msie6 = 1;
4312 return NGX_CONF_OK;
4313 }
4314
4315 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
4316 "without PCRE library \"gzip_disable\" supports "
4317 "builtin \"msie6\" mask only");
4318
4319 return NGX_CONF_ERROR;
4320 #endif
4321 }
4322
4323 #endif
4324
4325
4326 static char *
4327 ngx_http_core_lowat_check(ngx_conf_t *cf, void *post, void *data)
4328 {
4329 #if (NGX_FREEBSD)
4330 ssize_t *np = data;
4331
4332 if ((u_long) *np >= ngx_freebsd_net_inet_tcp_sendspace) {
4333 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
4334 "\"send_lowat\" must be less than %d "
4335 "(sysctl net.inet.tcp.sendspace)",
4336 ngx_freebsd_net_inet_tcp_sendspace);
4337
4338 return NGX_CONF_ERROR;
4339 }
4340
4341 #elif !(NGX_HAVE_SO_SNDLOWAT)
4342 ssize_t *np = data;
4343
4344 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
4345 "\"send_lowat\" is not supported, ignored");
4346
4347 *np = 0;
4348
4349 #endif
4350
4351 return NGX_CONF_OK;
4352 }
4353
4354
4355 static char *
4356 ngx_http_core_pool_size(ngx_conf_t *cf, void *post, void *data)
4357 {
4358 size_t *sp = data;
4359
4360 if (*sp < NGX_MIN_POOL_SIZE) {
4361 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
4362 "pool must be no less than %uz", NGX_MIN_POOL_SIZE);
4363
4364 return NGX_CONF_ERROR;
4365 }
4366
4367 return NGX_CONF_OK;
4368 }
4369
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