0
|
1
|
|
2 /*
|
|
3 * Copyright (C) Igor Sysoev
|
|
4 */
|
|
5
|
|
6
|
|
7 #ifndef _NGX_HTTP_REQUEST_H_INCLUDED_
|
|
8 #define _NGX_HTTP_REQUEST_H_INCLUDED_
|
|
9
|
|
10
|
200
|
11 #define NGX_HTTP_MAX_URI_CHANGES 10
|
206
|
12 #define NGX_HTTP_MAX_SUBREQUESTS 50
|
456
|
13 #define NGX_HTTP_MAX_CAPTURES 9
|
58
|
14
|
198
|
15 /* must be 2^n */
|
|
16 #define NGX_HTTP_LC_HEADER_LEN 32
|
|
17
|
58
|
18
|
0
|
19 #define NGX_HTTP_DISCARD_BUFFER_SIZE 4096
|
|
20 #define NGX_HTTP_LINGERING_BUFFER_SIZE 4096
|
|
21
|
|
22
|
|
23 #define NGX_HTTP_VERSION_9 9
|
|
24 #define NGX_HTTP_VERSION_10 1000
|
|
25 #define NGX_HTTP_VERSION_11 1001
|
|
26
|
182
|
27 #define NGX_HTTP_UNKNOWN 0x0001
|
|
28 #define NGX_HTTP_GET 0x0002
|
|
29 #define NGX_HTTP_HEAD 0x0004
|
|
30 #define NGX_HTTP_POST 0x0008
|
|
31 #define NGX_HTTP_PUT 0x0010
|
|
32 #define NGX_HTTP_DELETE 0x0020
|
186
|
33 #define NGX_HTTP_MKCOL 0x0040
|
256
|
34 #define NGX_HTTP_COPY 0x0080
|
|
35 #define NGX_HTTP_MOVE 0x0100
|
|
36 #define NGX_HTTP_OPTIONS 0x0200
|
|
37 #define NGX_HTTP_PROPFIND 0x0400
|
|
38 #define NGX_HTTP_PROPPATCH 0x0800
|
|
39 #define NGX_HTTP_LOCK 0x1000
|
|
40 #define NGX_HTTP_UNLOCK 0x2000
|
294
|
41 #define NGX_HTTP_TRACE 0x4000
|
0
|
42
|
|
43 #define NGX_HTTP_CONNECTION_CLOSE 1
|
|
44 #define NGX_HTTP_CONNECTION_KEEP_ALIVE 2
|
|
45
|
|
46
|
|
47 #define NGX_NONE 1
|
|
48
|
|
49
|
|
50 #define NGX_HTTP_PARSE_HEADER_DONE 1
|
|
51
|
|
52 #define NGX_HTTP_CLIENT_ERROR 10
|
|
53 #define NGX_HTTP_PARSE_INVALID_METHOD 10
|
|
54 #define NGX_HTTP_PARSE_INVALID_REQUEST 11
|
54
|
55 #define NGX_HTTP_PARSE_INVALID_09_METHOD 12
|
0
|
56
|
54
|
57 #define NGX_HTTP_PARSE_INVALID_HEADER 13
|
0
|
58
|
248
|
59
|
122
|
60 #define NGX_HTTP_ZERO_IN_URI 1
|
248
|
61 #define NGX_HTTP_SUBREQUEST_IN_MEMORY 2
|
426
|
62 #define NGX_HTTP_SUBREQUEST_WAITED 4
|
122
|
63
|
0
|
64
|
|
65 #define NGX_HTTP_OK 200
|
182
|
66 #define NGX_HTTP_CREATED 201
|
60
|
67 #define NGX_HTTP_NO_CONTENT 204
|
0
|
68 #define NGX_HTTP_PARTIAL_CONTENT 206
|
|
69
|
|
70 #define NGX_HTTP_SPECIAL_RESPONSE 300
|
|
71 #define NGX_HTTP_MOVED_PERMANENTLY 301
|
|
72 #define NGX_HTTP_MOVED_TEMPORARILY 302
|
|
73 #define NGX_HTTP_NOT_MODIFIED 304
|
|
74
|
|
75 #define NGX_HTTP_BAD_REQUEST 400
|
52
|
76 #define NGX_HTTP_UNAUTHORIZED 401
|
0
|
77 #define NGX_HTTP_FORBIDDEN 403
|
|
78 #define NGX_HTTP_NOT_FOUND 404
|
|
79 #define NGX_HTTP_NOT_ALLOWED 405
|
|
80 #define NGX_HTTP_REQUEST_TIME_OUT 408
|
186
|
81 #define NGX_HTTP_CONFLICT 409
|
130
|
82 #define NGX_HTTP_LENGTH_REQUIRED 411
|
276
|
83 #define NGX_HTTP_PRECONDITION_FAILED 412
|
0
|
84 #define NGX_HTTP_REQUEST_ENTITY_TOO_LARGE 413
|
|
85 #define NGX_HTTP_REQUEST_URI_TOO_LARGE 414
|
186
|
86 #define NGX_HTTP_UNSUPPORTED_MEDIA_TYPE 415
|
0
|
87 #define NGX_HTTP_RANGE_NOT_SATISFIABLE 416
|
|
88
|
|
89
|
|
90 /* Our own HTTP codes */
|
|
91
|
136
|
92 /* The special code to close connection without any response */
|
|
93 #define NGX_HTTP_CLOSE 444
|
|
94
|
196
|
95 #define NGX_HTTP_OWN_CODES 495
|
|
96
|
|
97 #define NGX_HTTPS_CERT_ERROR 495
|
|
98 #define NGX_HTTPS_NO_CERT 496
|
0
|
99
|
|
100 /*
|
|
101 * We use the special code for the plain HTTP requests that are sent to
|
126
|
102 * HTTPS port to distinguish it from 4XX in an error page redirection
|
0
|
103 */
|
|
104 #define NGX_HTTP_TO_HTTPS 497
|
|
105
|
162
|
106 /* 498 is the canceled code for the requests with invalid host name */
|
0
|
107
|
|
108 /*
|
|
109 * HTTP does not define the code for the case when a client closed
|
|
110 * the connection while we are processing its request so we introduce
|
|
111 * own code to log such situation when a client has closed the connection
|
|
112 * before we even try to send the HTTP header to it
|
|
113 */
|
|
114 #define NGX_HTTP_CLIENT_CLOSED_REQUEST 499
|
|
115
|
|
116
|
|
117 #define NGX_HTTP_INTERNAL_SERVER_ERROR 500
|
|
118 #define NGX_HTTP_NOT_IMPLEMENTED 501
|
|
119 #define NGX_HTTP_BAD_GATEWAY 502
|
|
120 #define NGX_HTTP_SERVICE_UNAVAILABLE 503
|
|
121 #define NGX_HTTP_GATEWAY_TIME_OUT 504
|
186
|
122 #define NGX_HTTP_INSUFFICIENT_STORAGE 507
|
0
|
123
|
|
124
|
254
|
125 #define NGX_HTTP_LOWLEVEL_BUFFERED 0xf0
|
|
126 #define NGX_HTTP_WRITE_BUFFERED 0x10
|
|
127 #define NGX_HTTP_GZIP_BUFFERED 0x20
|
|
128 #define NGX_HTTP_SSI_BUFFERED 0x01
|
296
|
129 #define NGX_HTTP_SUB_BUFFERED 0x02
|
|
130 #define NGX_HTTP_COPY_BUFFERED 0x04
|
146
|
131
|
|
132
|
0
|
133 typedef enum {
|
|
134 NGX_HTTP_INITING_REQUEST_STATE = 0,
|
|
135 NGX_HTTP_READING_REQUEST_STATE,
|
|
136 NGX_HTTP_PROCESS_REQUEST_STATE,
|
|
137
|
|
138 NGX_HTTP_CONNECT_UPSTREAM_STATE,
|
|
139 NGX_HTTP_WRITING_UPSTREAM_STATE,
|
|
140 NGX_HTTP_READING_UPSTREAM_STATE,
|
|
141
|
|
142 NGX_HTTP_WRITING_REQUEST_STATE,
|
|
143 NGX_HTTP_LINGERING_CLOSE_STATE,
|
|
144 NGX_HTTP_KEEPALIVE_STATE
|
|
145 } ngx_http_state_e;
|
|
146
|
|
147
|
|
148 typedef struct {
|
50
|
149 ngx_str_t name;
|
|
150 ngx_uint_t offset;
|
58
|
151 ngx_http_header_handler_pt handler;
|
0
|
152 } ngx_http_header_t;
|
|
153
|
|
154
|
|
155 typedef struct {
|
58
|
156 ngx_str_t name;
|
|
157 ngx_uint_t offset;
|
118
|
158 } ngx_http_header_out_t;
|
58
|
159
|
|
160
|
|
161 typedef struct {
|
50
|
162 ngx_list_t headers;
|
0
|
163
|
50
|
164 ngx_table_elt_t *host;
|
|
165 ngx_table_elt_t *connection;
|
|
166 ngx_table_elt_t *if_modified_since;
|
|
167 ngx_table_elt_t *user_agent;
|
|
168 ngx_table_elt_t *referer;
|
|
169 ngx_table_elt_t *content_length;
|
|
170 ngx_table_elt_t *content_type;
|
0
|
171
|
50
|
172 ngx_table_elt_t *range;
|
346
|
173 ngx_table_elt_t *if_range;
|
0
|
174
|
130
|
175 ngx_table_elt_t *transfer_encoding;
|
384
|
176 ngx_table_elt_t *expect;
|
130
|
177
|
0
|
178 #if (NGX_HTTP_GZIP)
|
50
|
179 ngx_table_elt_t *accept_encoding;
|
|
180 ngx_table_elt_t *via;
|
0
|
181 #endif
|
|
182
|
50
|
183 ngx_table_elt_t *authorization;
|
0
|
184
|
50
|
185 ngx_table_elt_t *keep_alive;
|
0
|
186
|
510
|
187 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP || NGX_HTTP_GEO)
|
50
|
188 ngx_table_elt_t *x_forwarded_for;
|
0
|
189 #endif
|
|
190
|
122
|
191 #if (NGX_HTTP_REALIP)
|
|
192 ngx_table_elt_t *x_real_ip;
|
|
193 #endif
|
|
194
|
38
|
195 #if (NGX_HTTP_HEADERS)
|
50
|
196 ngx_table_elt_t *accept;
|
|
197 ngx_table_elt_t *accept_language;
|
38
|
198 #endif
|
|
199
|
186
|
200 #if (NGX_HTTP_DAV)
|
|
201 ngx_table_elt_t *depth;
|
|
202 ngx_table_elt_t *destination;
|
276
|
203 ngx_table_elt_t *overwrite;
|
230
|
204 ngx_table_elt_t *date;
|
186
|
205 #endif
|
|
206
|
52
|
207 ngx_str_t user;
|
|
208 ngx_str_t passwd;
|
|
209
|
50
|
210 ngx_array_t cookies;
|
|
211
|
376
|
212 ngx_str_t server;
|
212
|
213 off_t content_length_n;
|
50
|
214 time_t keep_alive_n;
|
0
|
215
|
50
|
216 unsigned connection_type:2;
|
|
217 unsigned msie:1;
|
|
218 unsigned msie4:1;
|
400
|
219 unsigned msie6:1;
|
50
|
220 unsigned opera:1;
|
|
221 unsigned gecko:1;
|
|
222 unsigned konqueror:1;
|
0
|
223 } ngx_http_headers_in_t;
|
|
224
|
|
225
|
|
226 typedef struct {
|
50
|
227 ngx_list_t headers;
|
0
|
228
|
50
|
229 ngx_uint_t status;
|
|
230 ngx_str_t status_line;
|
0
|
231
|
50
|
232 ngx_table_elt_t *server;
|
|
233 ngx_table_elt_t *date;
|
|
234 ngx_table_elt_t *content_length;
|
|
235 ngx_table_elt_t *content_encoding;
|
|
236 ngx_table_elt_t *location;
|
348
|
237 ngx_table_elt_t *refresh;
|
50
|
238 ngx_table_elt_t *last_modified;
|
|
239 ngx_table_elt_t *content_range;
|
|
240 ngx_table_elt_t *accept_ranges;
|
52
|
241 ngx_table_elt_t *www_authenticate;
|
50
|
242 ngx_table_elt_t *expires;
|
|
243 ngx_table_elt_t *etag;
|
0
|
244
|
206
|
245 ngx_str_t *override_charset;
|
|
246
|
|
247 size_t content_type_len;
|
58
|
248 ngx_str_t content_type;
|
50
|
249 ngx_str_t charset;
|
392
|
250 u_char *content_type_lowcase;
|
|
251 ngx_uint_t content_type_hash;
|
206
|
252
|
58
|
253 ngx_array_t cache_control;
|
|
254
|
50
|
255 off_t content_length_n;
|
|
256 time_t date_time;
|
|
257 time_t last_modified_time;
|
0
|
258 } ngx_http_headers_out_t;
|
|
259
|
|
260
|
28
|
261 typedef void (*ngx_http_client_body_handler_pt)(ngx_http_request_t *r);
|
|
262
|
0
|
263 typedef struct {
|
28
|
264 ngx_temp_file_t *temp_file;
|
|
265 ngx_chain_t *bufs;
|
|
266 ngx_buf_t *buf;
|
212
|
267 off_t rest;
|
182
|
268 ngx_chain_t *to_write;
|
28
|
269 ngx_http_client_body_handler_pt post_handler;
|
0
|
270 } ngx_http_request_body_t;
|
|
271
|
|
272
|
|
273 typedef struct {
|
50
|
274 ngx_http_request_t *request;
|
0
|
275
|
50
|
276 ngx_buf_t **busy;
|
|
277 ngx_int_t nbusy;
|
0
|
278
|
50
|
279 ngx_buf_t **free;
|
|
280 ngx_int_t nfree;
|
0
|
281
|
50
|
282 ngx_uint_t pipeline; /* unsigned pipeline:1; */
|
0
|
283 } ngx_http_connection_t;
|
|
284
|
|
285
|
326
|
286 typedef struct ngx_http_server_name_s ngx_http_server_name_t;
|
|
287
|
|
288
|
|
289 typedef struct {
|
|
290 ngx_hash_combined_t names;
|
|
291
|
|
292 ngx_uint_t nregex;
|
|
293 ngx_http_server_name_t *regex;
|
|
294 } ngx_http_virtual_names_t;
|
142
|
295
|
|
296
|
118
|
297 typedef void (*ngx_http_cleanup_pt)(void *data);
|
|
298
|
|
299 typedef struct ngx_http_cleanup_s ngx_http_cleanup_t;
|
|
300
|
|
301 struct ngx_http_cleanup_s {
|
142
|
302 ngx_http_cleanup_pt handler;
|
|
303 void *data;
|
|
304 ngx_http_cleanup_t *next;
|
118
|
305 };
|
|
306
|
|
307
|
248
|
308 typedef ngx_int_t (*ngx_http_post_subrequest_pt)(ngx_http_request_t *r,
|
|
309 void *data, ngx_int_t rc);
|
|
310
|
|
311 typedef struct {
|
|
312 ngx_http_post_subrequest_pt handler;
|
|
313 void *data;
|
|
314 } ngx_http_post_subrequest_t;
|
|
315
|
|
316
|
58
|
317 typedef struct ngx_http_postponed_request_s ngx_http_postponed_request_t;
|
|
318
|
|
319 struct ngx_http_postponed_request_s {
|
84
|
320 ngx_http_request_t *request;
|
|
321 ngx_chain_t *out;
|
|
322 ngx_http_postponed_request_t *next;
|
58
|
323 };
|
|
324
|
|
325
|
426
|
326 typedef struct ngx_http_posted_request_s ngx_http_posted_request_t;
|
|
327
|
|
328 struct ngx_http_posted_request_s {
|
|
329 ngx_http_request_t *request;
|
|
330 ngx_http_posted_request_t *next;
|
|
331 };
|
|
332
|
|
333
|
0
|
334 typedef ngx_int_t (*ngx_http_handler_pt)(ngx_http_request_t *r);
|
58
|
335 typedef void (*ngx_http_event_handler_pt)(ngx_http_request_t *r);
|
|
336
|
0
|
337
|
|
338 struct ngx_http_request_s {
|
50
|
339 uint32_t signature; /* "HTTP" */
|
0
|
340
|
50
|
341 ngx_connection_t *connection;
|
0
|
342
|
50
|
343 void **ctx;
|
|
344 void **main_conf;
|
|
345 void **srv_conf;
|
|
346 void **loc_conf;
|
0
|
347
|
58
|
348 ngx_http_event_handler_pt read_event_handler;
|
|
349 ngx_http_event_handler_pt write_event_handler;
|
|
350
|
464
|
351 #if (NGX_HTTP_CACHE)
|
50
|
352 ngx_http_cache_t *cache;
|
464
|
353 #endif
|
0
|
354
|
50
|
355 ngx_http_upstream_t *upstream;
|
296
|
356 ngx_array_t *upstream_states;
|
|
357 /* of ngx_http_upstream_state_t */
|
28
|
358
|
50
|
359 ngx_pool_t *pool;
|
|
360 ngx_buf_t *header_in;
|
0
|
361
|
50
|
362 ngx_http_headers_in_t headers_in;
|
|
363 ngx_http_headers_out_t headers_out;
|
0
|
364
|
50
|
365 ngx_http_request_body_t *request_body;
|
0
|
366
|
50
|
367 time_t lingering_time;
|
298
|
368 time_t start_sec;
|
|
369 ngx_msec_t start_msec;
|
0
|
370
|
50
|
371 ngx_uint_t method;
|
|
372 ngx_uint_t http_version;
|
126
|
373
|
50
|
374 ngx_str_t request_line;
|
|
375 ngx_str_t uri;
|
|
376 ngx_str_t args;
|
|
377 ngx_str_t exten;
|
|
378 ngx_str_t unparsed_uri;
|
0
|
379
|
50
|
380 ngx_str_t method_name;
|
|
381 ngx_str_t http_protocol;
|
126
|
382
|
58
|
383 ngx_chain_t *out;
|
50
|
384 ngx_http_request_t *main;
|
58
|
385 ngx_http_request_t *parent;
|
|
386 ngx_http_postponed_request_t *postponed;
|
248
|
387 ngx_http_post_subrequest_t *post_subrequest;
|
426
|
388 ngx_http_posted_request_t *posted_requests;
|
0
|
389
|
478
|
390 ngx_http_virtual_names_t *virtual_names;
|
|
391
|
50
|
392 ngx_int_t phase_handler;
|
|
393 ngx_http_handler_pt content_handler;
|
92
|
394 ngx_uint_t access_code;
|
34
|
395
|
122
|
396 ngx_http_variable_value_t *variables;
|
50
|
397
|
456
|
398 #if (NGX_PCRE)
|
|
399 ngx_uint_t ncaptures;
|
|
400 int *captures;
|
|
401 u_char *captures_data;
|
|
402 #endif
|
|
403
|
76
|
404 size_t limit_rate;
|
|
405
|
0
|
406 /* used to learn the Apache compatible response length without a header */
|
50
|
407 size_t header_size;
|
0
|
408
|
212
|
409 off_t request_length;
|
24
|
410
|
50
|
411 ngx_uint_t err_status;
|
0
|
412
|
50
|
413 ngx_http_connection_t *http_connection;
|
0
|
414
|
58
|
415 ngx_http_log_handler_pt log_handler;
|
|
416
|
118
|
417 ngx_http_cleanup_t *cleanup;
|
|
418
|
518
|
419 unsigned subrequests:8;
|
|
420 unsigned count:8;
|
|
421 unsigned blocked:8;
|
|
422
|
|
423 unsigned aio:1;
|
|
424
|
50
|
425 unsigned http_state:4;
|
0
|
426
|
2
|
427 /* URI with "/." and on Win32 with "//" */
|
50
|
428 unsigned complex_uri:1;
|
34
|
429
|
2
|
430 /* URI with "%" */
|
50
|
431 unsigned quoted_uri:1;
|
34
|
432
|
|
433 /* URI with "+" */
|
50
|
434 unsigned plus_in_uri:1;
|
34
|
435
|
38
|
436 /* URI with "\0" or "%00" */
|
50
|
437 unsigned zero_in_uri:1;
|
38
|
438
|
60
|
439 unsigned invalid_header:1;
|
|
440
|
58
|
441 unsigned valid_location:1;
|
54
|
442 unsigned valid_unparsed_uri:1;
|
50
|
443 unsigned uri_changed:1;
|
|
444 unsigned uri_changes:4;
|
34
|
445
|
182
|
446 unsigned request_body_in_single_buf:1;
|
|
447 unsigned request_body_in_file_only:1;
|
|
448 unsigned request_body_in_persistent_file:1;
|
278
|
449 unsigned request_body_in_clean_file:1;
|
182
|
450 unsigned request_body_file_group_access:1;
|
186
|
451 unsigned request_body_file_log_level:3;
|
182
|
452
|
248
|
453 unsigned subrequest_in_memory:1;
|
426
|
454 unsigned waited:1;
|
146
|
455
|
464
|
456 #if (NGX_HTTP_CACHE)
|
|
457 unsigned cached:1;
|
|
458 #endif
|
358
|
459 unsigned gzip:2;
|
|
460
|
50
|
461 unsigned proxy:1;
|
|
462 unsigned bypass_cache:1;
|
|
463 unsigned no_cache:1;
|
0
|
464
|
272
|
465 /*
|
416
|
466 * instead of using the request context data in
|
418
|
467 * ngx_http_limit_zone_module and ngx_http_limit_req_module
|
416
|
468 * we use the single bits in the request structure
|
272
|
469 */
|
|
470 unsigned limit_zone_set:1;
|
416
|
471 unsigned limit_req_set:1;
|
272
|
472
|
0
|
473 #if 0
|
340
|
474 unsigned cacheable:1;
|
0
|
475 #endif
|
58
|
476
|
50
|
477 unsigned pipeline:1;
|
|
478 unsigned plain_http:1;
|
|
479 unsigned chunked:1;
|
|
480 unsigned header_only:1;
|
238
|
481 unsigned zero_body:1;
|
50
|
482 unsigned keepalive:1;
|
|
483 unsigned lingering_close:1;
|
86
|
484 unsigned discard_body:1;
|
58
|
485 unsigned internal:1;
|
228
|
486 unsigned error_page:1;
|
494
|
487 unsigned ignore_content_encoding:1;
|
488
|
488 unsigned filter_finalize:1;
|
178
|
489 unsigned post_action:1;
|
|
490 unsigned request_complete:1;
|
216
|
491 unsigned request_output:1;
|
|
492 unsigned header_sent:1;
|
384
|
493 unsigned expect_tested:1;
|
388
|
494 unsigned root_tested:1;
|
58
|
495 unsigned done:1;
|
412
|
496 unsigned logged:1;
|
0
|
497
|
254
|
498 unsigned buffered:4;
|
|
499
|
62
|
500 unsigned main_filter_need_in_memory:1;
|
50
|
501 unsigned filter_need_in_memory:1;
|
|
502 unsigned filter_need_temporary:1;
|
130
|
503 unsigned allow_ranges:1;
|
0
|
504
|
|
505 #if (NGX_STAT_STUB)
|
50
|
506 unsigned stat_reading:1;
|
|
507 unsigned stat_writing:1;
|
0
|
508 #endif
|
|
509
|
|
510 /* used to parse HTTP headers */
|
248
|
511
|
50
|
512 ngx_uint_t state;
|
|
513 u_char *uri_start;
|
|
514 u_char *uri_end;
|
|
515 u_char *uri_ext;
|
|
516 u_char *args_start;
|
|
517 u_char *request_start;
|
|
518 u_char *request_end;
|
|
519 u_char *method_end;
|
|
520 u_char *schema_start;
|
|
521 u_char *schema_end;
|
|
522 u_char *host_start;
|
|
523 u_char *host_end;
|
|
524 u_char *port_start;
|
|
525 u_char *port_end;
|
|
526 u_char *header_name_start;
|
|
527 u_char *header_name_end;
|
|
528 u_char *header_start;
|
|
529 u_char *header_end;
|
198
|
530
|
248
|
531 unsigned http_minor:16;
|
|
532 unsigned http_major:16;
|
|
533
|
56
|
534 ngx_uint_t header_hash;
|
198
|
535 ngx_uint_t lowcase_index;
|
|
536 u_char lowcase_header[NGX_HTTP_LC_HEADER_LEN];
|
0
|
537 };
|
|
538
|
|
539
|
118
|
540 extern ngx_http_header_t ngx_http_headers_in[];
|
|
541 extern ngx_http_header_out_t ngx_http_headers_out[];
|
0
|
542
|
|
543
|
|
544 #endif /* _NGX_HTTP_REQUEST_H_INCLUDED_ */
|