|
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
|
|
58
|
13
|
|
198
|
14 /* must be 2^n */
|
|
|
15 #define NGX_HTTP_LC_HEADER_LEN 32
|
|
|
16
|
|
58
|
17
|
|
0
|
18 #define NGX_HTTP_DISCARD_BUFFER_SIZE 4096
|
|
|
19 #define NGX_HTTP_LINGERING_BUFFER_SIZE 4096
|
|
|
20
|
|
|
21
|
|
|
22 #define NGX_HTTP_VERSION_9 9
|
|
|
23 #define NGX_HTTP_VERSION_10 1000
|
|
|
24 #define NGX_HTTP_VERSION_11 1001
|
|
|
25
|
|
182
|
26 #define NGX_HTTP_UNKNOWN 0x0001
|
|
|
27 #define NGX_HTTP_GET 0x0002
|
|
|
28 #define NGX_HTTP_HEAD 0x0004
|
|
|
29 #define NGX_HTTP_POST 0x0008
|
|
|
30 #define NGX_HTTP_PUT 0x0010
|
|
|
31 #define NGX_HTTP_DELETE 0x0020
|
|
186
|
32 #define NGX_HTTP_MKCOL 0x0040
|
|
0
|
33
|
|
|
34 #define NGX_HTTP_CONNECTION_CLOSE 1
|
|
|
35 #define NGX_HTTP_CONNECTION_KEEP_ALIVE 2
|
|
|
36
|
|
|
37
|
|
|
38 #define NGX_NONE 1
|
|
|
39
|
|
|
40
|
|
|
41 #define NGX_HTTP_PARSE_HEADER_DONE 1
|
|
|
42
|
|
|
43 #define NGX_HTTP_CLIENT_ERROR 10
|
|
|
44 #define NGX_HTTP_PARSE_INVALID_METHOD 10
|
|
|
45 #define NGX_HTTP_PARSE_INVALID_REQUEST 11
|
|
54
|
46 #define NGX_HTTP_PARSE_INVALID_09_METHOD 12
|
|
0
|
47
|
|
54
|
48 #define NGX_HTTP_PARSE_INVALID_HEADER 13
|
|
0
|
49
|
|
248
|
50
|
|
122
|
51 #define NGX_HTTP_ZERO_IN_URI 1
|
|
248
|
52 #define NGX_HTTP_SUBREQUEST_IN_MEMORY 2
|
|
122
|
53
|
|
0
|
54
|
|
|
55 #define NGX_HTTP_OK 200
|
|
182
|
56 #define NGX_HTTP_CREATED 201
|
|
60
|
57 #define NGX_HTTP_NO_CONTENT 204
|
|
0
|
58 #define NGX_HTTP_PARTIAL_CONTENT 206
|
|
|
59
|
|
|
60 #define NGX_HTTP_SPECIAL_RESPONSE 300
|
|
|
61 #define NGX_HTTP_MOVED_PERMANENTLY 301
|
|
|
62 #define NGX_HTTP_MOVED_TEMPORARILY 302
|
|
|
63 #define NGX_HTTP_NOT_MODIFIED 304
|
|
|
64
|
|
|
65 #define NGX_HTTP_BAD_REQUEST 400
|
|
52
|
66 #define NGX_HTTP_UNAUTHORIZED 401
|
|
0
|
67 #define NGX_HTTP_FORBIDDEN 403
|
|
|
68 #define NGX_HTTP_NOT_FOUND 404
|
|
|
69 #define NGX_HTTP_NOT_ALLOWED 405
|
|
|
70 #define NGX_HTTP_REQUEST_TIME_OUT 408
|
|
186
|
71 #define NGX_HTTP_CONFLICT 409
|
|
130
|
72 #define NGX_HTTP_LENGTH_REQUIRED 411
|
|
0
|
73 #define NGX_HTTP_REQUEST_ENTITY_TOO_LARGE 413
|
|
|
74 #define NGX_HTTP_REQUEST_URI_TOO_LARGE 414
|
|
186
|
75 #define NGX_HTTP_UNSUPPORTED_MEDIA_TYPE 415
|
|
0
|
76 #define NGX_HTTP_RANGE_NOT_SATISFIABLE 416
|
|
|
77
|
|
|
78
|
|
|
79 /* Our own HTTP codes */
|
|
|
80
|
|
136
|
81 /* The special code to close connection without any response */
|
|
|
82 #define NGX_HTTP_CLOSE 444
|
|
|
83
|
|
196
|
84 #define NGX_HTTP_OWN_CODES 495
|
|
|
85
|
|
|
86 #define NGX_HTTPS_CERT_ERROR 495
|
|
|
87 #define NGX_HTTPS_NO_CERT 496
|
|
0
|
88
|
|
|
89 /*
|
|
|
90 * We use the special code for the plain HTTP requests that are sent to
|
|
126
|
91 * HTTPS port to distinguish it from 4XX in an error page redirection
|
|
0
|
92 */
|
|
|
93 #define NGX_HTTP_TO_HTTPS 497
|
|
|
94
|
|
162
|
95 /* 498 is the canceled code for the requests with invalid host name */
|
|
0
|
96
|
|
|
97 /*
|
|
|
98 * HTTP does not define the code for the case when a client closed
|
|
|
99 * the connection while we are processing its request so we introduce
|
|
|
100 * own code to log such situation when a client has closed the connection
|
|
|
101 * before we even try to send the HTTP header to it
|
|
|
102 */
|
|
|
103 #define NGX_HTTP_CLIENT_CLOSED_REQUEST 499
|
|
|
104
|
|
|
105
|
|
|
106 #define NGX_HTTP_INTERNAL_SERVER_ERROR 500
|
|
|
107 #define NGX_HTTP_NOT_IMPLEMENTED 501
|
|
|
108 #define NGX_HTTP_BAD_GATEWAY 502
|
|
|
109 #define NGX_HTTP_SERVICE_UNAVAILABLE 503
|
|
|
110 #define NGX_HTTP_GATEWAY_TIME_OUT 504
|
|
186
|
111 #define NGX_HTTP_INSUFFICIENT_STORAGE 507
|
|
0
|
112
|
|
|
113
|
|
254
|
114 #define NGX_HTTP_LOWLEVEL_BUFFERED 0xf0
|
|
|
115 #define NGX_HTTP_WRITE_BUFFERED 0x10
|
|
|
116 #define NGX_HTTP_GZIP_BUFFERED 0x20
|
|
|
117 #define NGX_HTTP_SSI_BUFFERED 0x01
|
|
|
118 #define NGX_HTTP_COPY_BUFFERED 0x02
|
|
146
|
119
|
|
|
120
|
|
0
|
121 typedef enum {
|
|
|
122 NGX_HTTP_INITING_REQUEST_STATE = 0,
|
|
|
123 NGX_HTTP_READING_REQUEST_STATE,
|
|
|
124 NGX_HTTP_PROCESS_REQUEST_STATE,
|
|
|
125
|
|
|
126 NGX_HTTP_CONNECT_UPSTREAM_STATE,
|
|
|
127 NGX_HTTP_WRITING_UPSTREAM_STATE,
|
|
|
128 NGX_HTTP_READING_UPSTREAM_STATE,
|
|
|
129
|
|
|
130 NGX_HTTP_WRITING_REQUEST_STATE,
|
|
|
131 NGX_HTTP_LINGERING_CLOSE_STATE,
|
|
|
132 NGX_HTTP_KEEPALIVE_STATE
|
|
|
133 } ngx_http_state_e;
|
|
|
134
|
|
|
135
|
|
|
136 typedef struct {
|
|
50
|
137 ngx_str_t name;
|
|
|
138 ngx_uint_t offset;
|
|
58
|
139 ngx_http_header_handler_pt handler;
|
|
0
|
140 } ngx_http_header_t;
|
|
|
141
|
|
|
142
|
|
|
143 typedef struct {
|
|
58
|
144 ngx_str_t name;
|
|
|
145 ngx_uint_t offset;
|
|
118
|
146 } ngx_http_header_out_t;
|
|
58
|
147
|
|
|
148
|
|
|
149 typedef struct {
|
|
50
|
150 ngx_list_t headers;
|
|
0
|
151
|
|
50
|
152 ngx_table_elt_t *host;
|
|
|
153 ngx_table_elt_t *connection;
|
|
|
154 ngx_table_elt_t *if_modified_since;
|
|
|
155 ngx_table_elt_t *user_agent;
|
|
|
156 ngx_table_elt_t *referer;
|
|
|
157 ngx_table_elt_t *content_length;
|
|
|
158 ngx_table_elt_t *content_type;
|
|
0
|
159
|
|
50
|
160 ngx_table_elt_t *range;
|
|
0
|
161
|
|
130
|
162 ngx_table_elt_t *transfer_encoding;
|
|
|
163
|
|
0
|
164 #if (NGX_HTTP_GZIP)
|
|
50
|
165 ngx_table_elt_t *accept_encoding;
|
|
|
166 ngx_table_elt_t *via;
|
|
0
|
167 #endif
|
|
|
168
|
|
50
|
169 ngx_table_elt_t *authorization;
|
|
0
|
170
|
|
50
|
171 ngx_table_elt_t *keep_alive;
|
|
0
|
172
|
|
122
|
173 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
|
|
50
|
174 ngx_table_elt_t *x_forwarded_for;
|
|
0
|
175 #endif
|
|
|
176
|
|
122
|
177 #if (NGX_HTTP_REALIP)
|
|
|
178 ngx_table_elt_t *x_real_ip;
|
|
|
179 #endif
|
|
|
180
|
|
38
|
181 #if (NGX_HTTP_HEADERS)
|
|
50
|
182 ngx_table_elt_t *accept;
|
|
|
183 ngx_table_elt_t *accept_language;
|
|
38
|
184 #endif
|
|
|
185
|
|
186
|
186 #if (NGX_HTTP_DAV)
|
|
|
187 ngx_table_elt_t *depth;
|
|
|
188 ngx_table_elt_t *destination;
|
|
230
|
189 ngx_table_elt_t *date;
|
|
186
|
190 #endif
|
|
|
191
|
|
52
|
192 ngx_str_t user;
|
|
|
193 ngx_str_t passwd;
|
|
|
194
|
|
50
|
195 ngx_array_t cookies;
|
|
|
196
|
|
|
197 size_t host_name_len;
|
|
212
|
198 off_t content_length_n;
|
|
50
|
199 time_t keep_alive_n;
|
|
0
|
200
|
|
50
|
201 unsigned connection_type:2;
|
|
|
202 unsigned msie:1;
|
|
|
203 unsigned msie4:1;
|
|
|
204 unsigned opera:1;
|
|
|
205 unsigned gecko:1;
|
|
|
206 unsigned konqueror:1;
|
|
0
|
207 } ngx_http_headers_in_t;
|
|
|
208
|
|
|
209
|
|
|
210 typedef struct {
|
|
50
|
211 off_t start;
|
|
|
212 off_t end;
|
|
|
213 ngx_str_t content_range;
|
|
0
|
214 } ngx_http_range_t;
|
|
|
215
|
|
|
216
|
|
|
217 typedef struct {
|
|
50
|
218 ngx_list_t headers;
|
|
0
|
219
|
|
50
|
220 ngx_uint_t status;
|
|
|
221 ngx_str_t status_line;
|
|
0
|
222
|
|
50
|
223 ngx_table_elt_t *server;
|
|
|
224 ngx_table_elt_t *date;
|
|
|
225 ngx_table_elt_t *content_length;
|
|
|
226 ngx_table_elt_t *content_encoding;
|
|
|
227 ngx_table_elt_t *location;
|
|
|
228 ngx_table_elt_t *last_modified;
|
|
|
229 ngx_table_elt_t *content_range;
|
|
|
230 ngx_table_elt_t *accept_ranges;
|
|
52
|
231 ngx_table_elt_t *www_authenticate;
|
|
50
|
232 ngx_table_elt_t *expires;
|
|
|
233 ngx_table_elt_t *etag;
|
|
0
|
234
|
|
206
|
235 ngx_str_t *override_charset;
|
|
|
236
|
|
|
237 size_t content_type_len;
|
|
58
|
238 ngx_str_t content_type;
|
|
50
|
239 ngx_str_t charset;
|
|
206
|
240
|
|
50
|
241 ngx_array_t ranges;
|
|
58
|
242 ngx_array_t cache_control;
|
|
|
243
|
|
50
|
244 off_t content_length_n;
|
|
|
245 time_t date_time;
|
|
|
246 time_t last_modified_time;
|
|
0
|
247 } ngx_http_headers_out_t;
|
|
|
248
|
|
|
249
|
|
28
|
250 typedef void (*ngx_http_client_body_handler_pt)(ngx_http_request_t *r);
|
|
|
251
|
|
0
|
252 typedef struct {
|
|
28
|
253 ngx_temp_file_t *temp_file;
|
|
|
254 ngx_chain_t *bufs;
|
|
|
255 ngx_buf_t *buf;
|
|
212
|
256 off_t rest;
|
|
182
|
257 ngx_chain_t *to_write;
|
|
28
|
258 ngx_http_client_body_handler_pt post_handler;
|
|
0
|
259 } ngx_http_request_body_t;
|
|
|
260
|
|
|
261
|
|
|
262 typedef struct {
|
|
50
|
263 ngx_http_request_t *request;
|
|
0
|
264
|
|
50
|
265 ngx_buf_t **busy;
|
|
|
266 ngx_int_t nbusy;
|
|
0
|
267
|
|
50
|
268 ngx_buf_t **free;
|
|
|
269 ngx_int_t nfree;
|
|
0
|
270
|
|
50
|
271 ngx_uint_t pipeline; /* unsigned pipeline:1; */
|
|
0
|
272 } ngx_http_connection_t;
|
|
|
273
|
|
|
274
|
|
142
|
275 typedef struct {
|
|
|
276 ngx_hash_t hash;
|
|
|
277 ngx_hash_wildcard_t *dns_wildcards;
|
|
|
278 } ngx_http_virtual_names_t;
|
|
|
279
|
|
|
280
|
|
118
|
281 typedef void (*ngx_http_cleanup_pt)(void *data);
|
|
|
282
|
|
|
283 typedef struct ngx_http_cleanup_s ngx_http_cleanup_t;
|
|
|
284
|
|
|
285 struct ngx_http_cleanup_s {
|
|
142
|
286 ngx_http_cleanup_pt handler;
|
|
|
287 void *data;
|
|
|
288 ngx_http_cleanup_t *next;
|
|
118
|
289 };
|
|
|
290
|
|
|
291
|
|
248
|
292 typedef ngx_int_t (*ngx_http_post_subrequest_pt)(ngx_http_request_t *r,
|
|
|
293 void *data, ngx_int_t rc);
|
|
|
294
|
|
|
295 typedef struct {
|
|
|
296 ngx_http_post_subrequest_pt handler;
|
|
|
297 void *data;
|
|
|
298 } ngx_http_post_subrequest_t;
|
|
|
299
|
|
|
300
|
|
58
|
301 typedef struct ngx_http_postponed_request_s ngx_http_postponed_request_t;
|
|
|
302
|
|
|
303 struct ngx_http_postponed_request_s {
|
|
84
|
304 ngx_http_request_t *request;
|
|
|
305 ngx_chain_t *out;
|
|
|
306 ngx_http_postponed_request_t *next;
|
|
58
|
307 };
|
|
|
308
|
|
|
309
|
|
0
|
310 typedef ngx_int_t (*ngx_http_handler_pt)(ngx_http_request_t *r);
|
|
58
|
311 typedef void (*ngx_http_event_handler_pt)(ngx_http_request_t *r);
|
|
|
312
|
|
0
|
313
|
|
|
314 struct ngx_http_request_s {
|
|
50
|
315 uint32_t signature; /* "HTTP" */
|
|
0
|
316
|
|
50
|
317 ngx_connection_t *connection;
|
|
0
|
318
|
|
50
|
319 void **ctx;
|
|
|
320 void **main_conf;
|
|
|
321 void **srv_conf;
|
|
|
322 void **loc_conf;
|
|
0
|
323
|
|
58
|
324 ngx_http_event_handler_pt read_event_handler;
|
|
|
325 ngx_http_event_handler_pt write_event_handler;
|
|
|
326
|
|
50
|
327 ngx_http_cache_t *cache;
|
|
0
|
328
|
|
50
|
329 ngx_http_upstream_t *upstream;
|
|
28
|
330
|
|
50
|
331 ngx_pool_t *pool;
|
|
|
332 ngx_buf_t *header_in;
|
|
0
|
333
|
|
50
|
334 ngx_http_headers_in_t headers_in;
|
|
|
335 ngx_http_headers_out_t headers_out;
|
|
0
|
336
|
|
50
|
337 ngx_http_request_body_t *request_body;
|
|
0
|
338
|
|
50
|
339 time_t lingering_time;
|
|
|
340 time_t start_time;
|
|
0
|
341
|
|
50
|
342 ngx_uint_t method;
|
|
|
343 ngx_uint_t http_version;
|
|
126
|
344
|
|
50
|
345 ngx_str_t request_line;
|
|
|
346 ngx_str_t uri;
|
|
|
347 ngx_str_t args;
|
|
|
348 ngx_str_t exten;
|
|
|
349 ngx_str_t unparsed_uri;
|
|
0
|
350
|
|
50
|
351 ngx_str_t method_name;
|
|
|
352 ngx_str_t http_protocol;
|
|
126
|
353
|
|
58
|
354 ngx_chain_t *out;
|
|
50
|
355 ngx_http_request_t *main;
|
|
58
|
356 ngx_http_request_t *parent;
|
|
|
357 ngx_http_postponed_request_t *postponed;
|
|
248
|
358 ngx_http_post_subrequest_t *post_subrequest;
|
|
0
|
359
|
|
50
|
360 uint32_t in_addr;
|
|
|
361 ngx_uint_t port;
|
|
|
362 ngx_str_t *port_text; /* ":80" */
|
|
|
363 ngx_str_t server_name;
|
|
142
|
364 ngx_http_virtual_names_t *virtual_names;
|
|
0
|
365
|
|
50
|
366 ngx_int_t phase_handler;
|
|
|
367 ngx_http_handler_pt content_handler;
|
|
92
|
368 ngx_uint_t access_code;
|
|
34
|
369
|
|
122
|
370 ngx_http_variable_value_t *variables;
|
|
50
|
371
|
|
76
|
372 size_t limit_rate;
|
|
|
373
|
|
0
|
374 /* used to learn the Apache compatible response length without a header */
|
|
50
|
375 size_t header_size;
|
|
0
|
376
|
|
212
|
377 off_t request_length;
|
|
24
|
378
|
|
50
|
379 ngx_uint_t err_status;
|
|
0
|
380
|
|
50
|
381 ngx_http_connection_t *http_connection;
|
|
0
|
382
|
|
58
|
383 ngx_http_log_handler_pt log_handler;
|
|
|
384
|
|
118
|
385 ngx_http_cleanup_t *cleanup;
|
|
|
386
|
|
50
|
387 unsigned http_state:4;
|
|
0
|
388
|
|
2
|
389 /* URI with "/." and on Win32 with "//" */
|
|
50
|
390 unsigned complex_uri:1;
|
|
34
|
391
|
|
2
|
392 /* URI with "%" */
|
|
50
|
393 unsigned quoted_uri:1;
|
|
34
|
394
|
|
|
395 /* URI with "+" */
|
|
50
|
396 unsigned plus_in_uri:1;
|
|
34
|
397
|
|
38
|
398 /* URI with "\0" or "%00" */
|
|
50
|
399 unsigned zero_in_uri:1;
|
|
38
|
400
|
|
60
|
401 unsigned invalid_header:1;
|
|
|
402
|
|
58
|
403 unsigned valid_location:1;
|
|
54
|
404 unsigned valid_unparsed_uri:1;
|
|
50
|
405 unsigned uri_changed:1;
|
|
|
406 unsigned uri_changes:4;
|
|
34
|
407
|
|
182
|
408 unsigned request_body_in_single_buf:1;
|
|
|
409 unsigned request_body_in_file_only:1;
|
|
|
410 unsigned request_body_in_persistent_file:1;
|
|
|
411 unsigned request_body_delete_incomplete_file:1;
|
|
|
412 unsigned request_body_file_group_access:1;
|
|
186
|
413 unsigned request_body_file_log_level:3;
|
|
182
|
414
|
|
146
|
415 unsigned fast_subrequest:1;
|
|
248
|
416 unsigned subrequest_in_memory:1;
|
|
146
|
417
|
|
50
|
418 unsigned header_timeout_set:1;
|
|
0
|
419
|
|
50
|
420 unsigned proxy:1;
|
|
|
421 unsigned bypass_cache:1;
|
|
|
422 unsigned no_cache:1;
|
|
0
|
423
|
|
122
|
424 #if (NGX_HTTP_REALIP)
|
|
|
425
|
|
|
426 /*
|
|
|
427 * instead of using the request context data in ngx_http_realip_module
|
|
|
428 * we use the single bit in the request structure
|
|
|
429 */
|
|
|
430 unsigned realip_set:1;
|
|
|
431
|
|
|
432 #endif
|
|
|
433
|
|
0
|
434 #if 0
|
|
50
|
435 unsigned cachable:1;
|
|
0
|
436 #endif
|
|
58
|
437
|
|
50
|
438 unsigned pipeline:1;
|
|
|
439 unsigned plain_http:1;
|
|
|
440 unsigned chunked:1;
|
|
|
441 unsigned header_only:1;
|
|
238
|
442 unsigned zero_body:1;
|
|
50
|
443 unsigned keepalive:1;
|
|
|
444 unsigned lingering_close:1;
|
|
86
|
445 unsigned discard_body:1;
|
|
58
|
446 unsigned internal:1;
|
|
228
|
447 unsigned error_page:1;
|
|
178
|
448 unsigned post_action:1;
|
|
|
449 unsigned request_complete:1;
|
|
216
|
450 unsigned request_output:1;
|
|
|
451 unsigned header_sent:1;
|
|
58
|
452 unsigned done:1;
|
|
72
|
453 unsigned utf8:1;
|
|
0
|
454
|
|
254
|
455 unsigned buffered:4;
|
|
|
456
|
|
62
|
457 unsigned main_filter_need_in_memory:1;
|
|
50
|
458 unsigned filter_need_in_memory:1;
|
|
|
459 unsigned filter_need_temporary:1;
|
|
130
|
460 unsigned allow_ranges:1;
|
|
0
|
461
|
|
|
462 #if (NGX_STAT_STUB)
|
|
50
|
463 unsigned stat_reading:1;
|
|
|
464 unsigned stat_writing:1;
|
|
0
|
465 #endif
|
|
|
466
|
|
206
|
467 unsigned subrequests:8;
|
|
|
468
|
|
0
|
469 /* used to parse HTTP headers */
|
|
248
|
470
|
|
50
|
471 ngx_uint_t state;
|
|
|
472 u_char *uri_start;
|
|
|
473 u_char *uri_end;
|
|
|
474 u_char *uri_ext;
|
|
|
475 u_char *args_start;
|
|
|
476 u_char *request_start;
|
|
|
477 u_char *request_end;
|
|
|
478 u_char *method_end;
|
|
|
479 u_char *schema_start;
|
|
|
480 u_char *schema_end;
|
|
|
481 u_char *host_start;
|
|
|
482 u_char *host_end;
|
|
|
483 u_char *port_start;
|
|
|
484 u_char *port_end;
|
|
|
485 u_char *header_name_start;
|
|
|
486 u_char *header_name_end;
|
|
|
487 u_char *header_start;
|
|
|
488 u_char *header_end;
|
|
198
|
489
|
|
248
|
490 unsigned http_minor:16;
|
|
|
491 unsigned http_major:16;
|
|
|
492
|
|
56
|
493 ngx_uint_t header_hash;
|
|
198
|
494 ngx_uint_t lowcase_index;
|
|
|
495 u_char lowcase_header[NGX_HTTP_LC_HEADER_LEN];
|
|
0
|
496 };
|
|
|
497
|
|
|
498
|
|
118
|
499 extern ngx_http_header_t ngx_http_headers_in[];
|
|
|
500 extern ngx_http_header_out_t ngx_http_headers_out[];
|
|
0
|
501
|
|
|
502
|
|
|
503 #endif /* _NGX_HTTP_REQUEST_H_INCLUDED_ */
|
