3 * Copyright (C) Igor Sysoev
7 #ifndef _NGX_HTTP_CORE_H_INCLUDED_
8 #define _NGX_HTTP_CORE_H_INCLUDED_
11 #include <ngx_config.h>
16 #define NGX_HTTP_GZIP_PROXIED_OFF 0x0002
17 #define NGX_HTTP_GZIP_PROXIED_EXPIRED 0x0004
18 #define NGX_HTTP_GZIP_PROXIED_NO_CACHE 0x0008
19 #define NGX_HTTP_GZIP_PROXIED_NO_STORE 0x0010
20 #define NGX_HTTP_GZIP_PROXIED_PRIVATE 0x0020
21 #define NGX_HTTP_GZIP_PROXIED_NO_LM 0x0040
22 #define NGX_HTTP_GZIP_PROXIED_NO_ETAG 0x0080
23 #define NGX_HTTP_GZIP_PROXIED_AUTH 0x0100
24 #define NGX_HTTP_GZIP_PROXIED_ANY 0x0200
27 #define NGX_HTTP_SATISFY_ALL 0
28 #define NGX_HTTP_SATISFY_ANY 1
31 #define NGX_HTTP_IMS_OFF 0
32 #define NGX_HTTP_IMS_EXACT 1
33 #define NGX_HTTP_IMS_BEFORE 2
36 typedef struct ngx_http_location_tree_node_s ngx_http_location_tree_node_t;
37 typedef struct ngx_http_core_loc_conf_s ngx_http_core_loc_conf_t;
41 unsigned default_server:1;
52 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
55 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
56 ngx_uint_t deferred_accept;
59 u_char addr[NGX_SOCKADDR_STRLEN + 1];
60 } ngx_http_listen_conf_t;
64 u_char sockaddr[NGX_SOCKADDRLEN];
70 ngx_http_listen_conf_t conf;
75 NGX_HTTP_POST_READ_PHASE = 0,
77 NGX_HTTP_SERVER_REWRITE_PHASE,
79 NGX_HTTP_FIND_CONFIG_PHASE,
80 NGX_HTTP_REWRITE_PHASE,
81 NGX_HTTP_POST_REWRITE_PHASE,
83 NGX_HTTP_PREACCESS_PHASE,
85 NGX_HTTP_ACCESS_PHASE,
86 NGX_HTTP_POST_ACCESS_PHASE,
88 NGX_HTTP_TRY_FILES_PHASE,
89 NGX_HTTP_CONTENT_PHASE,
94 typedef struct ngx_http_phase_handler_s ngx_http_phase_handler_t;
96 typedef ngx_int_t (*ngx_http_phase_handler_pt)(ngx_http_request_t *r,
97 ngx_http_phase_handler_t *ph);
99 struct ngx_http_phase_handler_s {
100 ngx_http_phase_handler_pt checker;
101 ngx_http_handler_pt handler;
107 ngx_http_phase_handler_t *handlers;
108 ngx_uint_t server_rewrite_index;
109 ngx_uint_t location_rewrite_index;
110 } ngx_http_phase_engine_t;
114 ngx_array_t handlers;
119 ngx_array_t servers; /* ngx_http_core_srv_conf_t */
121 ngx_http_phase_engine_t phase_engine;
123 ngx_hash_t headers_in_hash;
125 ngx_hash_t variables_hash;
127 ngx_array_t variables; /* ngx_http_variable_t */
129 ngx_uint_t server_names_hash_max_size;
130 ngx_uint_t server_names_hash_bucket_size;
132 ngx_uint_t variables_hash_max_size;
133 ngx_uint_t variables_hash_bucket_size;
135 ngx_hash_keys_arrays_t *variables_keys;
137 ngx_uint_t try_files; /* unsigned try_files:1 */
139 ngx_http_phase_t phases[NGX_HTTP_LOG_PHASE + 1];
140 } ngx_http_core_main_conf_t;
144 /* array of the ngx_http_listen_t, "listen" directive */
147 /* array of the ngx_http_server_name_t, "server_name" directive */
148 ngx_array_t server_names;
151 ngx_http_conf_ctx_t *ctx;
153 ngx_str_t server_name;
155 size_t connection_pool_size;
156 size_t request_pool_size;
157 size_t client_header_buffer_size;
159 ngx_bufs_t large_client_header_buffers;
161 ngx_msec_t client_header_timeout;
163 ngx_flag_t ignore_invalid_headers;
164 ngx_flag_t merge_slashes;
165 ngx_flag_t underscores_in_headers;
167 ngx_http_core_loc_conf_t **named_locations;
168 } ngx_http_core_srv_conf_t;
171 /* list of structures to find core_srv_conf quickly at run time */
175 /* the default server configuration for this address:port */
176 ngx_http_core_srv_conf_t *core_srv_conf;
178 ngx_http_virtual_names_t *virtual_names;
181 ngx_uint_t ssl; /* unsigned ssl:1; */
183 } ngx_http_addr_conf_t;
188 ngx_http_addr_conf_t conf;
189 } ngx_http_in_addr_t;
195 struct in6_addr addr6;
196 ngx_http_addr_conf_t conf;
197 } ngx_http_in6_addr_t;
206 /* ngx_http_in_addr_t or ngx_http_in6_addr_t */
215 ngx_array_t addrs; /* array of ngx_http_conf_addr_t */
216 } ngx_http_conf_port_t;
220 struct sockaddr *sockaddr;
224 ngx_hash_wildcard_t *wc_head;
225 ngx_hash_wildcard_t *wc_tail;
227 ngx_array_t names; /* array of ngx_http_server_name_t */
231 ngx_http_server_name_t *regex;
234 /* the default server configuration for this address:port */
235 ngx_http_core_srv_conf_t *core_srv_conf;
237 unsigned default_server:1;
244 ngx_http_listen_conf_t *listen_conf;
245 } ngx_http_conf_addr_t;
248 struct ngx_http_server_name_s {
252 ngx_http_core_srv_conf_t *core_srv_conf; /* virtual name server conf */
262 ngx_array_t *uri_lengths;
263 ngx_array_t *uri_values;
264 } ngx_http_err_page_t;
268 ngx_array_t *lengths;
271 ngx_uint_t test_dir; /* unsigned test_dir:1; */
272 } ngx_http_try_file_t;
275 struct ngx_http_core_loc_conf_s {
276 ngx_str_t name; /* location name */
282 unsigned noname:1; /* "if () {}" block or limit_except */
285 unsigned exact_match:1;
288 unsigned auto_redirect:1;
291 unsigned gzip_disable_msie6:2;
294 ngx_http_location_tree_node_t *static_locations;
295 ngx_http_core_loc_conf_t **regex_locations;
297 /* pointer to the modules' loc_conf */
300 uint32_t limit_except;
301 void **limit_except_loc_conf;
303 ngx_http_handler_pt handler;
305 ngx_str_t root; /* root, alias */
306 ngx_str_t post_action;
308 ngx_array_t *root_lengths;
309 ngx_array_t *root_values;
312 ngx_hash_t types_hash;
313 ngx_str_t default_type;
315 off_t client_max_body_size; /* client_max_body_size */
316 off_t directio; /* directio */
318 size_t client_body_buffer_size; /* client_body_buffer_size */
319 size_t send_lowat; /* send_lowat */
320 size_t postpone_output; /* postpone_output */
321 size_t limit_rate; /* limit_rate */
322 size_t sendfile_max_chunk; /* sendfile_max_chunk */
324 ngx_msec_t client_body_timeout; /* client_body_timeout */
325 ngx_msec_t send_timeout; /* send_timeout */
326 ngx_msec_t keepalive_timeout; /* keepalive_timeout */
327 ngx_msec_t lingering_time; /* lingering_time */
328 ngx_msec_t lingering_timeout; /* lingering_timeout */
329 ngx_msec_t resolver_timeout; /* resolver_timeout */
331 ngx_resolver_t *resolver; /* resolver */
333 time_t keepalive_header; /* keepalive_timeout */
335 ngx_uint_t satisfy; /* satisfy */
336 ngx_uint_t if_modified_since; /* if_modified_since */
338 ngx_flag_t internal; /* internal */
339 ngx_flag_t client_body_in_file_only; /* client_body_in_file_only */
340 ngx_flag_t sendfile; /* sendfile */
341 ngx_flag_t tcp_nopush; /* tcp_nopush */
342 ngx_flag_t tcp_nodelay; /* tcp_nodelay */
343 ngx_flag_t reset_timedout_connection; /* reset_timedout_connection */
344 ngx_flag_t server_name_in_redirect; /* server_name_in_redirect */
345 ngx_flag_t port_in_redirect; /* port_in_redirect */
346 ngx_flag_t msie_padding; /* msie_padding */
347 ngx_flag_t msie_refresh; /* msie_refresh */
348 ngx_flag_t log_not_found; /* log_not_found */
349 ngx_flag_t log_subrequest; /* log_subrequest */
350 ngx_flag_t recursive_error_pages; /* recursive_error_pages */
351 ngx_flag_t server_tokens; /* server_tokens */
354 ngx_flag_t gzip_vary; /* gzip_vary */
356 ngx_uint_t gzip_http_version; /* gzip_http_version */
357 ngx_uint_t gzip_proxied; /* gzip_proxied */
360 ngx_array_t *gzip_disable; /* gzip_disable */
364 ngx_array_t *error_pages; /* error_page */
365 ngx_http_try_file_t *try_files; /* try_files */
367 ngx_path_t *client_body_temp_path; /* client_body_temp_path */
369 ngx_open_file_cache_t *open_file_cache;
370 time_t open_file_cache_valid;
371 ngx_uint_t open_file_cache_min_uses;
372 ngx_flag_t open_file_cache_errors;
373 ngx_flag_t open_file_cache_events;
377 ngx_uint_t types_hash_max_size;
378 ngx_uint_t types_hash_bucket_size;
380 ngx_queue_t *locations;
383 ngx_http_core_loc_conf_t *prev_location;
390 ngx_http_core_loc_conf_t *exact;
391 ngx_http_core_loc_conf_t *inclusive;
396 } ngx_http_location_queue_t;
399 struct ngx_http_location_tree_node_s {
400 ngx_http_location_tree_node_t *left;
401 ngx_http_location_tree_node_t *right;
402 ngx_http_location_tree_node_t *tree;
404 ngx_http_core_loc_conf_t *exact;
405 ngx_http_core_loc_conf_t *inclusive;
407 u_char auto_redirect;
413 void ngx_http_core_run_phases(ngx_http_request_t *r);
414 ngx_int_t ngx_http_core_generic_phase(ngx_http_request_t *r,
415 ngx_http_phase_handler_t *ph);
416 ngx_int_t ngx_http_core_find_config_phase(ngx_http_request_t *r,
417 ngx_http_phase_handler_t *ph);
418 ngx_int_t ngx_http_core_post_rewrite_phase(ngx_http_request_t *r,
419 ngx_http_phase_handler_t *ph);
420 ngx_int_t ngx_http_core_access_phase(ngx_http_request_t *r,
421 ngx_http_phase_handler_t *ph);
422 ngx_int_t ngx_http_core_post_access_phase(ngx_http_request_t *r,
423 ngx_http_phase_handler_t *ph);
424 ngx_int_t ngx_http_core_try_files_phase(ngx_http_request_t *r,
425 ngx_http_phase_handler_t *ph);
426 ngx_int_t ngx_http_core_content_phase(ngx_http_request_t *r,
427 ngx_http_phase_handler_t *ph);
430 void *ngx_http_test_content_type(ngx_http_request_t *r, ngx_hash_t *types_hash);
431 ngx_int_t ngx_http_set_content_type(ngx_http_request_t *r);
432 ngx_int_t ngx_http_set_exten(ngx_http_request_t *r);
433 u_char *ngx_http_map_uri_to_path(ngx_http_request_t *r, ngx_str_t *name,
434 size_t *root_length, size_t reserved);
435 ngx_int_t ngx_http_auth_basic_user(ngx_http_request_t *r);
436 ngx_int_t ngx_http_server_addr(ngx_http_request_t *r, ngx_str_t *s);
438 ngx_int_t ngx_http_gzip_ok(ngx_http_request_t *r);
442 ngx_int_t ngx_http_subrequest(ngx_http_request_t *r,
443 ngx_str_t *uri, ngx_str_t *args, ngx_http_request_t **sr,
444 ngx_http_post_subrequest_t *psr, ngx_uint_t flags);
445 ngx_int_t ngx_http_internal_redirect(ngx_http_request_t *r,
446 ngx_str_t *uri, ngx_str_t *args);
447 ngx_int_t ngx_http_named_location(ngx_http_request_t *r, ngx_str_t *name);
450 ngx_http_cleanup_t *ngx_http_cleanup_add(ngx_http_request_t *r, size_t size);
453 typedef ngx_int_t (*ngx_http_output_header_filter_pt)(ngx_http_request_t *r);
454 typedef ngx_int_t (*ngx_http_output_body_filter_pt)
455 (ngx_http_request_t *r, ngx_chain_t *chain);
458 ngx_int_t ngx_http_output_filter(ngx_http_request_t *r, ngx_chain_t *chain);
459 ngx_int_t ngx_http_write_filter(ngx_http_request_t *r, ngx_chain_t *chain);
462 extern ngx_module_t ngx_http_core_module;
464 extern ngx_uint_t ngx_http_max_module;
467 #define ngx_http_clear_content_length(r) \
469 r->headers_out.content_length_n = -1; \
470 if (r->headers_out.content_length) { \
471 r->headers_out.content_length->hash = 0; \
472 r->headers_out.content_length = NULL; \
475 #define ngx_http_clear_accept_ranges(r) \
477 r->allow_ranges = 0; \
478 if (r->headers_out.accept_ranges) { \
479 r->headers_out.accept_ranges->hash = 0; \
480 r->headers_out.accept_ranges = NULL; \
483 #define ngx_http_clear_last_modified(r) \
485 r->headers_out.last_modified_time = -1; \
486 if (r->headers_out.last_modified) { \
487 r->headers_out.last_modified->hash = 0; \
488 r->headers_out.last_modified = NULL; \
492 #endif /* _NGX_HTTP_CORE_H_INCLUDED_ */