1
2 /*
3 * Copyright (C) Igor Sysoev
4 */
5
6
7 #ifndef _NGX_HTTP_CORE_H_INCLUDED_
8 #define _NGX_HTTP_CORE_H_INCLUDED_
9
10
11 #include <ngx_string.h>
12 #include <ngx_array.h>
13 #include <ngx_http.h>
14
15
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
25
26
27 #define NGX_HTTP_SATISFY_ALL 0
28 #define NGX_HTTP_SATISFY_ANY 1
29
30
31 typedef struct {
32 unsigned default_server:1;
33 unsigned bind:1;
34
35 int backlog;
36 int rcvbuf;
37 int sndbuf;
38
39 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
40 char *accept_filter;
41 #endif
42 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
43 ngx_uint_t deferred_accept;
44 #endif
45
46 u_char addr[INET_ADDRSTRLEN + 6];
47
48 } ngx_http_listen_conf_t;
49
50
51 typedef struct {
52 in_addr_t addr;
53 in_port_t port;
54 int family;
55
56 u_char *file_name;
57 ngx_uint_t line;
58
59 ngx_http_listen_conf_t conf;
60 } ngx_http_listen_t;
61
62
63 typedef enum {
64 NGX_HTTP_POST_READ_PHASE = 0,
65
66 NGX_HTTP_SERVER_REWRITE_PHASE,
67
68 NGX_HTTP_FIND_CONFIG_PHASE,
69 NGX_HTTP_REWRITE_PHASE,
70 NGX_HTTP_POST_REWRITE_PHASE,
71
72 NGX_HTTP_PREACCESS_PHASE,
73
74 NGX_HTTP_ACCESS_PHASE,
75 NGX_HTTP_POST_ACCESS_PHASE,
76
77 NGX_HTTP_CONTENT_PHASE,
78
79 NGX_HTTP_LOG_PHASE
80 } ngx_http_phases;
81
82 typedef struct ngx_http_phase_handler_s ngx_http_phase_handler_t;
83
84 typedef ngx_int_t (*ngx_http_phase_handler_pt)(ngx_http_request_t *r,
85 ngx_http_phase_handler_t *ph);
86
87 struct ngx_http_phase_handler_s {
88 ngx_http_phase_handler_pt checker;
89 ngx_http_handler_pt handler;
90 ngx_uint_t next;
91 };
92
93
94 typedef struct {
95 ngx_http_phase_handler_t *handlers;
96 ngx_uint_t server_rewrite_index;
97 ngx_uint_t location_rewrite_index;
98 } ngx_http_phase_engine_t;
99
100
101 typedef struct {
102 ngx_array_t handlers;
103 } ngx_http_phase_t;
104
105
106 typedef struct {
107 ngx_array_t servers; /* ngx_http_core_srv_conf_t */
108
109 ngx_http_phase_engine_t phase_engine;
110
111 ngx_hash_t headers_in_hash;
112
113 ngx_hash_t variables_hash;
114
115 ngx_array_t variables; /* ngx_http_variable_t */
116
117 ngx_uint_t server_names_hash_max_size;
118 ngx_uint_t server_names_hash_bucket_size;
119
120 ngx_uint_t variables_hash_max_size;
121 ngx_uint_t variables_hash_bucket_size;
122
123 ngx_hash_keys_arrays_t *variables_keys;
124
125 ngx_http_phase_t phases[NGX_HTTP_LOG_PHASE + 1];
126 } ngx_http_core_main_conf_t;
127
128
129 typedef struct {
130 /*
131 * array of the ngx_http_core_loc_conf_t *,
132 * used in the ngx_http_core_find_location() and in the merge phase
133 */
134 ngx_array_t locations;
135
136 unsigned regex_start:15;
137 unsigned named_start:15;
138
139 /* array of the ngx_http_listen_t, "listen" directive */
140 ngx_array_t listen;
141
142 /* array of the ngx_http_server_name_t, "server_name" directive */
143 ngx_array_t server_names;
144
145 /* server ctx */
146 ngx_http_conf_ctx_t *ctx;
147
148 ngx_str_t server_name;
149
150 size_t connection_pool_size;
151 size_t request_pool_size;
152 size_t client_header_buffer_size;
153
154 ngx_bufs_t large_client_header_buffers;
155
156 ngx_msec_t client_header_timeout;
157
158 ngx_flag_t optimize_server_names;
159 ngx_flag_t ignore_invalid_headers;
160 ngx_flag_t merge_slashes;
161 } ngx_http_core_srv_conf_t;
162
163
164 /* list of structures to find core_srv_conf quickly at run time */
165
166
167 typedef struct {
168 in_addr_t addr;
169
170 /* the default server configuration for this address:port */
171 ngx_http_core_srv_conf_t *core_srv_conf;
172
173 ngx_http_virtual_names_t *virtual_names;
174 } ngx_http_in_addr_t;
175
176
177 typedef struct {
178 in_port_t port;
179 ngx_str_t port_text;
180 ngx_http_in_addr_t *addrs;
181 ngx_uint_t naddrs;
182 } ngx_http_in_port_t;
183
184
185 typedef struct {
186 in_port_t port;
187 ngx_array_t addrs; /* array of ngx_http_conf_in_addr_t */
188 } ngx_http_conf_in_port_t;
189
190
191 typedef struct {
192 in_addr_t addr;
193
194 ngx_hash_t hash;
195 ngx_hash_wildcard_t *wc_head;
196 ngx_hash_wildcard_t *wc_tail;
197
198 ngx_array_t names; /* array of ngx_http_server_name_t */
199
200 #if (NGX_PCRE)
201 ngx_uint_t nregex;
202 ngx_http_server_name_t *regex;
203 #endif
204
205 /* the default server configuration for this address:port */
206 ngx_http_core_srv_conf_t *core_srv_conf;
207
208 unsigned default_server:1;
209 unsigned bind:1;
210
211 ngx_http_listen_conf_t *listen_conf;
212 } ngx_http_conf_in_addr_t;
213
214
215 struct ngx_http_server_name_s {
216 #if (NGX_PCRE)
217 ngx_regex_t *regex;
218 #endif
219 ngx_http_core_srv_conf_t *core_srv_conf; /* virtual name server conf */
220 ngx_str_t name;
221 };
222
223
224 typedef struct {
225 ngx_int_t status;
226 ngx_int_t overwrite;
227 ngx_str_t uri;
228 ngx_array_t *uri_lengths;
229 ngx_array_t *uri_values;
230 } ngx_http_err_page_t;
231
232
233 typedef struct ngx_http_core_loc_conf_s ngx_http_core_loc_conf_t;
234
235 struct ngx_http_core_loc_conf_s {
236 ngx_str_t name; /* location name */
237
238 #if (NGX_PCRE)
239 ngx_regex_t *regex;
240 #endif
241
242 unsigned regex_start:15;
243
244 unsigned noname:1; /* "if () {}" block or limit_except */
245 unsigned named:1;
246
247 unsigned exact_match:1;
248 unsigned noregex:1;
249
250 unsigned auto_redirect:1;
251 unsigned alias:1;
252
253 /* array of inclusive ngx_http_core_loc_conf_t */
254 ngx_array_t *locations;
255
256 /* pointer to the modules' loc_conf */
257 void **loc_conf ;
258
259 uint32_t limit_except;
260 void **limit_except_loc_conf ;
261
262 ngx_http_handler_pt handler;
263
264 ngx_str_t root; /* root, alias */
265 ngx_str_t post_action;
266
267 ngx_array_t *root_lengths;
268 ngx_array_t *root_values;
269
270 ngx_array_t *types;
271 ngx_hash_t types_hash;
272 ngx_str_t default_type;
273
274 off_t client_max_body_size; /* client_max_body_size */
275
276 size_t client_body_buffer_size; /* client_body_buffer_size */
277 size_t send_lowat; /* send_lowat */
278 size_t postpone_output; /* postpone_output */
279 size_t limit_rate; /* limit_rate */
280 size_t sendfile_max_chunk; /* sendfile_max_chunk */
281
282 ngx_msec_t client_body_timeout; /* client_body_timeout */
283 ngx_msec_t send_timeout; /* send_timeout */
284 ngx_msec_t keepalive_timeout; /* keepalive_timeout */
285 ngx_msec_t lingering_time; /* lingering_time */
286 ngx_msec_t lingering_timeout; /* lingering_timeout */
287 ngx_msec_t resolver_timeout; /* resolver_timeout */
288
289 ngx_resolver_t *resolver; /* resolver */
290
291 time_t keepalive_header; /* keepalive_timeout */
292
293 ngx_uint_t satisfy; /* satisfy */
294
295 ngx_flag_t internal; /* internal */
296 ngx_flag_t client_body_in_file_only; /* client_body_in_file_only */
297 ngx_flag_t sendfile; /* sendfile */
298 ngx_flag_t tcp_nopush; /* tcp_nopush */
299 ngx_flag_t tcp_nodelay; /* tcp_nodelay */
300 ngx_flag_t reset_timedout_connection; /* reset_timedout_connection */
301 ngx_flag_t server_name_in_redirect; /* server_name_in_redirect */
302 ngx_flag_t port_in_redirect; /* port_in_redirect */
303 ngx_flag_t msie_padding; /* msie_padding */
304 ngx_flag_t msie_refresh; /* msie_refresh */
305 ngx_flag_t log_not_found; /* log_not_found */
306 ngx_flag_t recursive_error_pages; /* recursive_error_pages */
307 ngx_flag_t server_tokens; /* server_tokens */
308
309 #if (NGX_HTTP_GZIP)
310 ngx_flag_t gzip_vary; /* gzip_vary */
311
312 ngx_uint_t gzip_http_version; /* gzip_http_version */
313 ngx_uint_t gzip_proxied; /* gzip_proxied */
314
315 #if (NGX_PCRE)
316 ngx_array_t *gzip_disable; /* gzip_disable */
317 #endif
318 #endif
319
320 ngx_array_t *error_pages; /* error_page */
321
322 ngx_path_t *client_body_temp_path; /* client_body_temp_path */
323
324 ngx_open_file_cache_t *open_file_cache;
325 time_t open_file_cache_valid;
326 ngx_uint_t open_file_cache_min_uses;
327 ngx_flag_t open_file_cache_errors;
328 ngx_flag_t open_file_cache_events;
329
330 ngx_log_t *err_log;
331
332 ngx_uint_t types_hash_max_size;
333 ngx_uint_t types_hash_bucket_size;
334
335 #if 0
336 ngx_http_core_loc_conf_t *prev_location;
337 #endif
338 };
339
340
341 void ngx_http_core_run_phases(ngx_http_request_t *r);
342 ngx_int_t ngx_http_core_generic_phase(ngx_http_request_t *r,
343 ngx_http_phase_handler_t *ph);
344 ngx_int_t ngx_http_core_find_config_phase(ngx_http_request_t *r,
345 ngx_http_phase_handler_t *ph);
346 ngx_int_t ngx_http_core_post_rewrite_phase(ngx_http_request_t *r,
347 ngx_http_phase_handler_t *ph);
348 ngx_int_t ngx_http_core_access_phase(ngx_http_request_t *r,
349 ngx_http_phase_handler_t *ph);
350 ngx_int_t ngx_http_core_post_access_phase(ngx_http_request_t *r,
351 ngx_http_phase_handler_t *ph);
352 ngx_int_t ngx_http_core_content_phase(ngx_http_request_t *r,
353 ngx_http_phase_handler_t *ph);
354
355 ngx_int_t ngx_http_set_content_type(ngx_http_request_t *r);
356 ngx_int_t ngx_http_set_exten(ngx_http_request_t *r);
357 u_char *ngx_http_map_uri_to_path(ngx_http_request_t *r, ngx_str_t *name,
358 size_t *root_length, size_t reserved);
359 ngx_int_t ngx_http_auth_basic_user(ngx_http_request_t *r);
360 ngx_int_t ngx_http_server_addr(ngx_http_request_t *r, ngx_str_t *s);
361 #if (NGX_HTTP_GZIP)
362 ngx_int_t ngx_http_gzip_ok(ngx_http_request_t *r);
363 #endif
364
365
366 ngx_int_t ngx_http_subrequest(ngx_http_request_t *r,
367 ngx_str_t *uri, ngx_str_t *args, ngx_http_request_t **sr,
368 ngx_http_post_subrequest_t *psr, ngx_uint_t flags);
369 ngx_int_t ngx_http_internal_redirect(ngx_http_request_t *r,
370 ngx_str_t *uri, ngx_str_t *args);
371 ngx_int_t ngx_http_named_location(ngx_http_request_t *r, ngx_str_t *name);
372
373
374 ngx_http_cleanup_t *ngx_http_cleanup_add(ngx_http_request_t *r, size_t size);
375
376
377 typedef ngx_int_t (*ngx_http_output_header_filter_pt)(ngx_http_request_t *r);
378 typedef ngx_int_t (*ngx_http_output_body_filter_pt)
379 (ngx_http_request_t *r, ngx_chain_t *chain);
380
381
382 ngx_int_t ngx_http_output_filter(ngx_http_request_t *r, ngx_chain_t *chain);
383 ngx_int_t ngx_http_write_filter(ngx_http_request_t *r, ngx_chain_t *chain);
384
385
386 extern ngx_module_t ngx_http_core_module;
387
388 extern ngx_uint_t ngx_http_max_module;
389
390
391 #define ngx_http_clear_content_length(r) \
392 \
393 r->headers_out.content_length_n = -1; \
394 if (r->headers_out.content_length) { \
395 r->headers_out.content_length->hash = 0; \
396 r->headers_out.content_length = NULL; \
397 }
398 \
399 #define ngx_http_clear_accept_ranges(r) \
400 \
401 r->allow_ranges = 0; \
402 if (r->headers_out.accept_ranges) { \
403 r->headers_out.accept_ranges->hash = 0 ; \
404 r->headers_out.accept_ranges = NULL; \
405 }
406
407 #define ngx_http_clear_last_modified(r) \
408 \
409 r->headers_out.last_modified_time = -1; \
410 if (r->headers_out.last_modified) { \
411 r->headers_out.last_modified->hash = 0; \
412 r->headers_out.last_modified = NULL; \
413 }
414
415
416 #endif /* _NGX_HTTP_CORE_H_INCLUDED_ */
417
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