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1.1 misho 1:
2: /*
3: * Copyright (C) Igor Sysoev
4: * Copyright (C) Nginx, Inc.
5: */
6:
7:
8: #ifndef _NGX_HTTP_CORE_H_INCLUDED_
9: #define _NGX_HTTP_CORE_H_INCLUDED_
10:
11:
12: #include <ngx_config.h>
13: #include <ngx_core.h>
14: #include <ngx_http.h>
15:
16:
17: #define NGX_HTTP_GZIP_PROXIED_OFF 0x0002
18: #define NGX_HTTP_GZIP_PROXIED_EXPIRED 0x0004
19: #define NGX_HTTP_GZIP_PROXIED_NO_CACHE 0x0008
20: #define NGX_HTTP_GZIP_PROXIED_NO_STORE 0x0010
21: #define NGX_HTTP_GZIP_PROXIED_PRIVATE 0x0020
22: #define NGX_HTTP_GZIP_PROXIED_NO_LM 0x0040
23: #define NGX_HTTP_GZIP_PROXIED_NO_ETAG 0x0080
24: #define NGX_HTTP_GZIP_PROXIED_AUTH 0x0100
25: #define NGX_HTTP_GZIP_PROXIED_ANY 0x0200
26:
27:
28: #define NGX_HTTP_AIO_OFF 0
29: #define NGX_HTTP_AIO_ON 1
30: #define NGX_HTTP_AIO_SENDFILE 2
31:
32:
33: #define NGX_HTTP_SATISFY_ALL 0
34: #define NGX_HTTP_SATISFY_ANY 1
35:
36:
37: #define NGX_HTTP_LINGERING_OFF 0
38: #define NGX_HTTP_LINGERING_ON 1
39: #define NGX_HTTP_LINGERING_ALWAYS 2
40:
41:
42: #define NGX_HTTP_IMS_OFF 0
43: #define NGX_HTTP_IMS_EXACT 1
44: #define NGX_HTTP_IMS_BEFORE 2
45:
46:
47: #define NGX_HTTP_KEEPALIVE_DISABLE_NONE 0x0002
48: #define NGX_HTTP_KEEPALIVE_DISABLE_MSIE6 0x0004
49: #define NGX_HTTP_KEEPALIVE_DISABLE_SAFARI 0x0008
50:
51:
52: typedef struct ngx_http_location_tree_node_s ngx_http_location_tree_node_t;
53: typedef struct ngx_http_core_loc_conf_s ngx_http_core_loc_conf_t;
54:
55:
56: typedef struct {
57: union {
58: struct sockaddr sockaddr;
59: struct sockaddr_in sockaddr_in;
60: #if (NGX_HAVE_INET6)
61: struct sockaddr_in6 sockaddr_in6;
62: #endif
63: #if (NGX_HAVE_UNIX_DOMAIN)
64: struct sockaddr_un sockaddr_un;
65: #endif
66: u_char sockaddr_data[NGX_SOCKADDRLEN];
67: } u;
68:
69: socklen_t socklen;
70:
71: unsigned set:1;
72: unsigned default_server:1;
73: unsigned bind:1;
74: unsigned wildcard:1;
75: #if (NGX_HTTP_SSL)
76: unsigned ssl:1;
77: #endif
78: #if (NGX_HTTP_SPDY)
79: unsigned spdy:1;
80: #endif
81: #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
82: unsigned ipv6only:1;
83: #endif
84: unsigned so_keepalive:2;
85:
86: int backlog;
87: int rcvbuf;
88: int sndbuf;
89: #if (NGX_HAVE_SETFIB)
90: int setfib;
91: #endif
92: #if (NGX_HAVE_KEEPALIVE_TUNABLE)
93: int tcp_keepidle;
94: int tcp_keepintvl;
95: int tcp_keepcnt;
96: #endif
97:
98: #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
99: char *accept_filter;
100: #endif
101: #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
102: ngx_uint_t deferred_accept;
103: #endif
104:
105: u_char addr[NGX_SOCKADDR_STRLEN + 1];
106: } ngx_http_listen_opt_t;
107:
108:
109: typedef enum {
110: NGX_HTTP_POST_READ_PHASE = 0,
111:
112: NGX_HTTP_SERVER_REWRITE_PHASE,
113:
114: NGX_HTTP_FIND_CONFIG_PHASE,
115: NGX_HTTP_REWRITE_PHASE,
116: NGX_HTTP_POST_REWRITE_PHASE,
117:
118: NGX_HTTP_PREACCESS_PHASE,
119:
120: NGX_HTTP_ACCESS_PHASE,
121: NGX_HTTP_POST_ACCESS_PHASE,
122:
123: NGX_HTTP_TRY_FILES_PHASE,
124: NGX_HTTP_CONTENT_PHASE,
125:
126: NGX_HTTP_LOG_PHASE
127: } ngx_http_phases;
128:
129: typedef struct ngx_http_phase_handler_s ngx_http_phase_handler_t;
130:
131: typedef ngx_int_t (*ngx_http_phase_handler_pt)(ngx_http_request_t *r,
132: ngx_http_phase_handler_t *ph);
133:
134: struct ngx_http_phase_handler_s {
135: ngx_http_phase_handler_pt checker;
136: ngx_http_handler_pt handler;
137: ngx_uint_t next;
138: };
139:
140:
141: typedef struct {
142: ngx_http_phase_handler_t *handlers;
143: ngx_uint_t server_rewrite_index;
144: ngx_uint_t location_rewrite_index;
145: } ngx_http_phase_engine_t;
146:
147:
148: typedef struct {
149: ngx_array_t handlers;
150: } ngx_http_phase_t;
151:
152:
153: typedef struct {
154: ngx_array_t servers; /* ngx_http_core_srv_conf_t */
155:
156: ngx_http_phase_engine_t phase_engine;
157:
158: ngx_hash_t headers_in_hash;
159:
160: ngx_hash_t variables_hash;
161:
162: ngx_array_t variables; /* ngx_http_variable_t */
163: ngx_uint_t ncaptures;
164:
165: ngx_uint_t server_names_hash_max_size;
166: ngx_uint_t server_names_hash_bucket_size;
167:
168: ngx_uint_t variables_hash_max_size;
169: ngx_uint_t variables_hash_bucket_size;
170:
171: ngx_hash_keys_arrays_t *variables_keys;
172:
173: ngx_array_t *ports;
174:
175: ngx_uint_t try_files; /* unsigned try_files:1 */
176:
177: ngx_http_phase_t phases[NGX_HTTP_LOG_PHASE + 1];
178: } ngx_http_core_main_conf_t;
179:
180:
181: typedef struct {
182: /* array of the ngx_http_server_name_t, "server_name" directive */
183: ngx_array_t server_names;
184:
185: /* server ctx */
186: ngx_http_conf_ctx_t *ctx;
187:
188: ngx_str_t server_name;
189:
190: size_t connection_pool_size;
191: size_t request_pool_size;
192: size_t client_header_buffer_size;
193:
194: ngx_bufs_t large_client_header_buffers;
195:
196: ngx_msec_t client_header_timeout;
197:
198: ngx_flag_t ignore_invalid_headers;
199: ngx_flag_t merge_slashes;
200: ngx_flag_t underscores_in_headers;
201:
202: unsigned listen:1;
203: #if (NGX_PCRE)
204: unsigned captures:1;
205: #endif
206:
207: ngx_http_core_loc_conf_t **named_locations;
208: } ngx_http_core_srv_conf_t;
209:
210:
211: /* list of structures to find core_srv_conf quickly at run time */
212:
213:
214: typedef struct {
215: #if (NGX_PCRE)
216: ngx_http_regex_t *regex;
217: #endif
218: ngx_http_core_srv_conf_t *server; /* virtual name server conf */
219: ngx_str_t name;
220: } ngx_http_server_name_t;
221:
222:
223: typedef struct {
224: ngx_hash_combined_t names;
225:
226: ngx_uint_t nregex;
227: ngx_http_server_name_t *regex;
228: } ngx_http_virtual_names_t;
229:
230:
231: struct ngx_http_addr_conf_s {
232: /* the default server configuration for this address:port */
233: ngx_http_core_srv_conf_t *default_server;
234:
235: ngx_http_virtual_names_t *virtual_names;
236:
237: #if (NGX_HTTP_SSL)
238: unsigned ssl:1;
239: #endif
240: #if (NGX_HTTP_SPDY)
241: unsigned spdy:1;
242: #endif
243: };
244:
245:
246: typedef struct {
247: in_addr_t addr;
248: ngx_http_addr_conf_t conf;
249: } ngx_http_in_addr_t;
250:
251:
252: #if (NGX_HAVE_INET6)
253:
254: typedef struct {
255: struct in6_addr addr6;
256: ngx_http_addr_conf_t conf;
257: } ngx_http_in6_addr_t;
258:
259: #endif
260:
261:
262: typedef struct {
263: /* ngx_http_in_addr_t or ngx_http_in6_addr_t */
264: void *addrs;
265: ngx_uint_t naddrs;
266: } ngx_http_port_t;
267:
268:
269: typedef struct {
270: ngx_int_t family;
271: in_port_t port;
272: ngx_array_t addrs; /* array of ngx_http_conf_addr_t */
273: } ngx_http_conf_port_t;
274:
275:
276: typedef struct {
277: ngx_http_listen_opt_t opt;
278:
279: ngx_hash_t hash;
280: ngx_hash_wildcard_t *wc_head;
281: ngx_hash_wildcard_t *wc_tail;
282:
283: #if (NGX_PCRE)
284: ngx_uint_t nregex;
285: ngx_http_server_name_t *regex;
286: #endif
287:
288: /* the default server configuration for this address:port */
289: ngx_http_core_srv_conf_t *default_server;
290: ngx_array_t servers; /* array of ngx_http_core_srv_conf_t */
291: } ngx_http_conf_addr_t;
292:
293:
294: typedef struct {
295: ngx_int_t status;
296: ngx_int_t overwrite;
297: ngx_http_complex_value_t value;
298: ngx_str_t args;
299: } ngx_http_err_page_t;
300:
301:
302: typedef struct {
303: ngx_array_t *lengths;
304: ngx_array_t *values;
305: ngx_str_t name;
306:
307: unsigned code:10;
308: unsigned test_dir:1;
309: } ngx_http_try_file_t;
310:
311:
312: struct ngx_http_core_loc_conf_s {
313: ngx_str_t name; /* location name */
314:
315: #if (NGX_PCRE)
316: ngx_http_regex_t *regex;
317: #endif
318:
319: unsigned noname:1; /* "if () {}" block or limit_except */
320: unsigned lmt_excpt:1;
321: unsigned named:1;
322:
323: unsigned exact_match:1;
324: unsigned noregex:1;
325:
326: unsigned auto_redirect:1;
327: #if (NGX_HTTP_GZIP)
328: unsigned gzip_disable_msie6:2;
329: #if (NGX_HTTP_DEGRADATION)
330: unsigned gzip_disable_degradation:2;
331: #endif
332: #endif
333:
334: ngx_http_location_tree_node_t *static_locations;
335: #if (NGX_PCRE)
336: ngx_http_core_loc_conf_t **regex_locations;
337: #endif
338:
339: /* pointer to the modules' loc_conf */
340: void **loc_conf;
341:
342: uint32_t limit_except;
343: void **limit_except_loc_conf;
344:
345: ngx_http_handler_pt handler;
346:
347: /* location name length for inclusive location with inherited alias */
348: size_t alias;
349: ngx_str_t root; /* root, alias */
350: ngx_str_t post_action;
351:
352: ngx_array_t *root_lengths;
353: ngx_array_t *root_values;
354:
355: ngx_array_t *types;
356: ngx_hash_t types_hash;
357: ngx_str_t default_type;
358:
359: off_t client_max_body_size; /* client_max_body_size */
360: off_t directio; /* directio */
361: off_t directio_alignment; /* directio_alignment */
362:
363: size_t client_body_buffer_size; /* client_body_buffer_size */
364: size_t send_lowat; /* send_lowat */
365: size_t postpone_output; /* postpone_output */
366: size_t limit_rate; /* limit_rate */
367: size_t limit_rate_after; /* limit_rate_after */
368: size_t sendfile_max_chunk; /* sendfile_max_chunk */
369: size_t read_ahead; /* read_ahead */
370:
371: ngx_msec_t client_body_timeout; /* client_body_timeout */
372: ngx_msec_t send_timeout; /* send_timeout */
373: ngx_msec_t keepalive_timeout; /* keepalive_timeout */
374: ngx_msec_t lingering_time; /* lingering_time */
375: ngx_msec_t lingering_timeout; /* lingering_timeout */
376: ngx_msec_t resolver_timeout; /* resolver_timeout */
377:
378: ngx_resolver_t *resolver; /* resolver */
379:
380: time_t keepalive_header; /* keepalive_timeout */
381:
382: ngx_uint_t keepalive_requests; /* keepalive_requests */
383: ngx_uint_t keepalive_disable; /* keepalive_disable */
384: ngx_uint_t satisfy; /* satisfy */
385: ngx_uint_t lingering_close; /* lingering_close */
386: ngx_uint_t if_modified_since; /* if_modified_since */
387: ngx_uint_t max_ranges; /* max_ranges */
388: ngx_uint_t client_body_in_file_only; /* client_body_in_file_only */
389:
390: ngx_flag_t client_body_in_single_buffer;
391: /* client_body_in_singe_buffer */
392: ngx_flag_t internal; /* internal */
393: ngx_flag_t sendfile; /* sendfile */
394: #if (NGX_HAVE_FILE_AIO)
395: ngx_flag_t aio; /* aio */
396: #endif
397: ngx_flag_t tcp_nopush; /* tcp_nopush */
398: ngx_flag_t tcp_nodelay; /* tcp_nodelay */
399: ngx_flag_t reset_timedout_connection; /* reset_timedout_connection */
400: ngx_flag_t server_name_in_redirect; /* server_name_in_redirect */
401: ngx_flag_t port_in_redirect; /* port_in_redirect */
402: ngx_flag_t msie_padding; /* msie_padding */
403: ngx_flag_t msie_refresh; /* msie_refresh */
404: ngx_flag_t log_not_found; /* log_not_found */
405: ngx_flag_t log_subrequest; /* log_subrequest */
406: ngx_flag_t recursive_error_pages; /* recursive_error_pages */
407: ngx_flag_t server_tokens; /* server_tokens */
408: ngx_flag_t chunked_transfer_encoding; /* chunked_transfer_encoding */
409: ngx_flag_t etag; /* etag */
410:
411: #if (NGX_HTTP_GZIP)
412: ngx_flag_t gzip_vary; /* gzip_vary */
413:
414: ngx_uint_t gzip_http_version; /* gzip_http_version */
415: ngx_uint_t gzip_proxied; /* gzip_proxied */
416:
417: #if (NGX_PCRE)
418: ngx_array_t *gzip_disable; /* gzip_disable */
419: #endif
420: #endif
421:
422: #if (NGX_HAVE_OPENAT)
423: ngx_uint_t disable_symlinks; /* disable_symlinks */
424: ngx_http_complex_value_t *disable_symlinks_from;
425: #endif
426:
427: ngx_array_t *error_pages; /* error_page */
428: ngx_http_try_file_t *try_files; /* try_files */
429:
430: ngx_path_t *client_body_temp_path; /* client_body_temp_path */
431:
432: ngx_open_file_cache_t *open_file_cache;
433: time_t open_file_cache_valid;
434: ngx_uint_t open_file_cache_min_uses;
435: ngx_flag_t open_file_cache_errors;
436: ngx_flag_t open_file_cache_events;
437:
438: ngx_log_t *error_log;
439:
440: ngx_uint_t types_hash_max_size;
441: ngx_uint_t types_hash_bucket_size;
442:
443: ngx_queue_t *locations;
444:
445: #if 0
446: ngx_http_core_loc_conf_t *prev_location;
447: #endif
448: };
449:
450:
451: typedef struct {
452: ngx_queue_t queue;
453: ngx_http_core_loc_conf_t *exact;
454: ngx_http_core_loc_conf_t *inclusive;
455: ngx_str_t *name;
456: u_char *file_name;
457: ngx_uint_t line;
458: ngx_queue_t list;
459: } ngx_http_location_queue_t;
460:
461:
462: struct ngx_http_location_tree_node_s {
463: ngx_http_location_tree_node_t *left;
464: ngx_http_location_tree_node_t *right;
465: ngx_http_location_tree_node_t *tree;
466:
467: ngx_http_core_loc_conf_t *exact;
468: ngx_http_core_loc_conf_t *inclusive;
469:
470: u_char auto_redirect;
471: u_char len;
472: u_char name[1];
473: };
474:
475:
476: void ngx_http_core_run_phases(ngx_http_request_t *r);
477: ngx_int_t ngx_http_core_generic_phase(ngx_http_request_t *r,
478: ngx_http_phase_handler_t *ph);
479: ngx_int_t ngx_http_core_rewrite_phase(ngx_http_request_t *r,
480: ngx_http_phase_handler_t *ph);
481: ngx_int_t ngx_http_core_find_config_phase(ngx_http_request_t *r,
482: ngx_http_phase_handler_t *ph);
483: ngx_int_t ngx_http_core_post_rewrite_phase(ngx_http_request_t *r,
484: ngx_http_phase_handler_t *ph);
485: ngx_int_t ngx_http_core_access_phase(ngx_http_request_t *r,
486: ngx_http_phase_handler_t *ph);
487: ngx_int_t ngx_http_core_post_access_phase(ngx_http_request_t *r,
488: ngx_http_phase_handler_t *ph);
489: ngx_int_t ngx_http_core_try_files_phase(ngx_http_request_t *r,
490: ngx_http_phase_handler_t *ph);
491: ngx_int_t ngx_http_core_content_phase(ngx_http_request_t *r,
492: ngx_http_phase_handler_t *ph);
493:
494:
495: void *ngx_http_test_content_type(ngx_http_request_t *r, ngx_hash_t *types_hash);
496: ngx_int_t ngx_http_set_content_type(ngx_http_request_t *r);
497: void ngx_http_set_exten(ngx_http_request_t *r);
498: ngx_int_t ngx_http_set_etag(ngx_http_request_t *r);
499: ngx_int_t ngx_http_send_response(ngx_http_request_t *r, ngx_uint_t status,
500: ngx_str_t *ct, ngx_http_complex_value_t *cv);
501: u_char *ngx_http_map_uri_to_path(ngx_http_request_t *r, ngx_str_t *name,
502: size_t *root_length, size_t reserved);
503: ngx_int_t ngx_http_auth_basic_user(ngx_http_request_t *r);
504: #if (NGX_HTTP_GZIP)
505: ngx_int_t ngx_http_gzip_ok(ngx_http_request_t *r);
506: #endif
507:
508:
509: ngx_int_t ngx_http_subrequest(ngx_http_request_t *r,
510: ngx_str_t *uri, ngx_str_t *args, ngx_http_request_t **sr,
511: ngx_http_post_subrequest_t *psr, ngx_uint_t flags);
512: ngx_int_t ngx_http_internal_redirect(ngx_http_request_t *r,
513: ngx_str_t *uri, ngx_str_t *args);
514: ngx_int_t ngx_http_named_location(ngx_http_request_t *r, ngx_str_t *name);
515:
516:
517: ngx_http_cleanup_t *ngx_http_cleanup_add(ngx_http_request_t *r, size_t size);
518:
519:
520: typedef ngx_int_t (*ngx_http_output_header_filter_pt)(ngx_http_request_t *r);
521: typedef ngx_int_t (*ngx_http_output_body_filter_pt)
522: (ngx_http_request_t *r, ngx_chain_t *chain);
523:
524:
525: ngx_int_t ngx_http_output_filter(ngx_http_request_t *r, ngx_chain_t *chain);
526: ngx_int_t ngx_http_write_filter(ngx_http_request_t *r, ngx_chain_t *chain);
527:
528:
529: ngx_int_t ngx_http_set_disable_symlinks(ngx_http_request_t *r,
530: ngx_http_core_loc_conf_t *clcf, ngx_str_t *path, ngx_open_file_info_t *of);
531:
532: ngx_int_t ngx_http_get_forwarded_addr(ngx_http_request_t *r, ngx_addr_t *addr,
533: ngx_array_t *headers, ngx_str_t *value, ngx_array_t *proxies,
534: int recursive);
535:
536:
537: extern ngx_module_t ngx_http_core_module;
538:
539: extern ngx_uint_t ngx_http_max_module;
540:
541: extern ngx_str_t ngx_http_core_get_method;
542:
543:
544: #define ngx_http_clear_content_length(r) \
545: \
546: r->headers_out.content_length_n = -1; \
547: if (r->headers_out.content_length) { \
548: r->headers_out.content_length->hash = 0; \
549: r->headers_out.content_length = NULL; \
550: }
551: \
552: #define ngx_http_clear_accept_ranges(r) \
553: \
554: r->allow_ranges = 0; \
555: if (r->headers_out.accept_ranges) { \
556: r->headers_out.accept_ranges->hash = 0; \
557: r->headers_out.accept_ranges = NULL; \
558: }
559:
560: #define ngx_http_clear_last_modified(r) \
561: \
562: r->headers_out.last_modified_time = -1; \
563: if (r->headers_out.last_modified) { \
564: r->headers_out.last_modified->hash = 0; \
565: r->headers_out.last_modified = NULL; \
566: }
567:
568: #define ngx_http_clear_location(r) \
569: \
570: if (r->headers_out.location) { \
571: r->headers_out.location->hash = 0; \
572: r->headers_out.location = NULL; \
573: }
574:
575: #define ngx_http_clear_etag(r) \
576: \
577: if (r->headers_out.etag) { \
578: r->headers_out.etag->hash = 0; \
579: r->headers_out.etag = NULL; \
580: }
581:
582:
583: #endif /* _NGX_HTTP_CORE_H_INCLUDED_ */