|
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
|
|
58
|
11 #define NGX_HTTP_MAX_REWRITE_CYCLES 10
|
|
|
12
|
|
|
13
|
|
0
|
14 #define NGX_HTTP_DISCARD_BUFFER_SIZE 4096
|
|
|
15 #define NGX_HTTP_LINGERING_BUFFER_SIZE 4096
|
|
|
16
|
|
|
17
|
|
|
18 #define NGX_HTTP_VERSION_9 9
|
|
|
19 #define NGX_HTTP_VERSION_10 1000
|
|
|
20 #define NGX_HTTP_VERSION_11 1001
|
|
|
21
|
|
|
22 #define NGX_HTTP_GET 1
|
|
|
23 #define NGX_HTTP_HEAD 2
|
|
|
24 #define NGX_HTTP_POST 3
|
|
|
25
|
|
|
26 #define NGX_HTTP_CONNECTION_CLOSE 1
|
|
|
27 #define NGX_HTTP_CONNECTION_KEEP_ALIVE 2
|
|
|
28
|
|
|
29
|
|
|
30 #define NGX_NONE 1
|
|
|
31
|
|
|
32
|
|
|
33 #define NGX_HTTP_PARSE_HEADER_DONE 1
|
|
|
34
|
|
|
35 #define NGX_HTTP_CLIENT_ERROR 10
|
|
|
36 #define NGX_HTTP_PARSE_INVALID_METHOD 10
|
|
|
37 #define NGX_HTTP_PARSE_INVALID_REQUEST 11
|
|
54
|
38 #define NGX_HTTP_PARSE_INVALID_09_METHOD 12
|
|
0
|
39
|
|
54
|
40 #define NGX_HTTP_PARSE_INVALID_HEADER 13
|
|
0
|
41
|
|
122
|
42 #define NGX_HTTP_ZERO_IN_URI 1
|
|
|
43
|
|
0
|
44
|
|
|
45 #define NGX_HTTP_OK 200
|
|
60
|
46 #define NGX_HTTP_NO_CONTENT 204
|
|
0
|
47 #define NGX_HTTP_PARTIAL_CONTENT 206
|
|
|
48
|
|
|
49 #define NGX_HTTP_SPECIAL_RESPONSE 300
|
|
|
50 #define NGX_HTTP_MOVED_PERMANENTLY 301
|
|
|
51 #define NGX_HTTP_MOVED_TEMPORARILY 302
|
|
|
52 #define NGX_HTTP_NOT_MODIFIED 304
|
|
|
53
|
|
|
54 #define NGX_HTTP_BAD_REQUEST 400
|
|
52
|
55 #define NGX_HTTP_UNAUTHORIZED 401
|
|
0
|
56 #define NGX_HTTP_FORBIDDEN 403
|
|
|
57 #define NGX_HTTP_NOT_FOUND 404
|
|
|
58 #define NGX_HTTP_NOT_ALLOWED 405
|
|
|
59 #define NGX_HTTP_REQUEST_TIME_OUT 408
|
|
130
|
60 #define NGX_HTTP_LENGTH_REQUIRED 411
|
|
0
|
61 #define NGX_HTTP_REQUEST_ENTITY_TOO_LARGE 413
|
|
|
62 #define NGX_HTTP_REQUEST_URI_TOO_LARGE 414
|
|
|
63 #define NGX_HTTP_RANGE_NOT_SATISFIABLE 416
|
|
|
64
|
|
|
65
|
|
|
66 /* Our own HTTP codes */
|
|
|
67
|
|
136
|
68 /* The special code to close connection without any response */
|
|
|
69 #define NGX_HTTP_CLOSE 444
|
|
|
70
|
|
|
71 #define NGX_HTTP_OWN_CODES NGX_HTTP_TO_HTTPS
|
|
0
|
72
|
|
|
73 /*
|
|
|
74 * We use the special code for the plain HTTP requests that are sent to
|
|
126
|
75 * HTTPS port to distinguish it from 4XX in an error page redirection
|
|
0
|
76 */
|
|
|
77 #define NGX_HTTP_TO_HTTPS 497
|
|
|
78
|
|
162
|
79 /* 498 is the canceled code for the requests with invalid host name */
|
|
0
|
80
|
|
|
81 /*
|
|
|
82 * HTTP does not define the code for the case when a client closed
|
|
|
83 * the connection while we are processing its request so we introduce
|
|
|
84 * own code to log such situation when a client has closed the connection
|
|
|
85 * before we even try to send the HTTP header to it
|
|
|
86 */
|
|
|
87 #define NGX_HTTP_CLIENT_CLOSED_REQUEST 499
|
|
|
88
|
|
|
89
|
|
|
90 #define NGX_HTTP_INTERNAL_SERVER_ERROR 500
|
|
|
91 #define NGX_HTTP_NOT_IMPLEMENTED 501
|
|
|
92 #define NGX_HTTP_BAD_GATEWAY 502
|
|
|
93 #define NGX_HTTP_SERVICE_UNAVAILABLE 503
|
|
|
94 #define NGX_HTTP_GATEWAY_TIME_OUT 504
|
|
|
95
|
|
|
96
|
|
146
|
97 #define NGX_HTTP_LOWLEVEL_BUFFERED 0x000000f0
|
|
|
98 #define NGX_HTTP_WRITE_BUFFERED 0x00000010
|
|
|
99 #define NGX_HTTP_GZIP_BUFFERED 0x00000020
|
|
|
100 #define NGX_HTTP_SSI_BUFFERED 0x00000100
|
|
|
101 #define NGX_HTTP_COPY_BUFFERED 0x00000200
|
|
|
102
|
|
|
103
|
|
0
|
104 typedef enum {
|
|
|
105 NGX_HTTP_INITING_REQUEST_STATE = 0,
|
|
|
106 NGX_HTTP_READING_REQUEST_STATE,
|
|
|
107 NGX_HTTP_PROCESS_REQUEST_STATE,
|
|
|
108
|
|
|
109 NGX_HTTP_CONNECT_UPSTREAM_STATE,
|
|
|
110 NGX_HTTP_WRITING_UPSTREAM_STATE,
|
|
|
111 NGX_HTTP_READING_UPSTREAM_STATE,
|
|
|
112
|
|
|
113 NGX_HTTP_WRITING_REQUEST_STATE,
|
|
|
114 NGX_HTTP_LINGERING_CLOSE_STATE,
|
|
|
115 NGX_HTTP_KEEPALIVE_STATE
|
|
|
116 } ngx_http_state_e;
|
|
|
117
|
|
|
118
|
|
|
119 typedef struct {
|
|
50
|
120 ngx_str_t name;
|
|
|
121 ngx_uint_t offset;
|
|
58
|
122 ngx_http_header_handler_pt handler;
|
|
0
|
123 } ngx_http_header_t;
|
|
|
124
|
|
|
125
|
|
|
126 typedef struct {
|
|
58
|
127 ngx_str_t name;
|
|
|
128 ngx_uint_t offset;
|
|
118
|
129 } ngx_http_header_out_t;
|
|
58
|
130
|
|
|
131
|
|
|
132 typedef struct {
|
|
50
|
133 ngx_list_t headers;
|
|
0
|
134
|
|
50
|
135 ngx_table_elt_t *host;
|
|
|
136 ngx_table_elt_t *connection;
|
|
|
137 ngx_table_elt_t *if_modified_since;
|
|
|
138 ngx_table_elt_t *user_agent;
|
|
|
139 ngx_table_elt_t *referer;
|
|
|
140 ngx_table_elt_t *content_length;
|
|
|
141 ngx_table_elt_t *content_type;
|
|
0
|
142
|
|
50
|
143 ngx_table_elt_t *range;
|
|
0
|
144
|
|
130
|
145 ngx_table_elt_t *transfer_encoding;
|
|
|
146
|
|
0
|
147 #if (NGX_HTTP_GZIP)
|
|
50
|
148 ngx_table_elt_t *accept_encoding;
|
|
|
149 ngx_table_elt_t *via;
|
|
0
|
150 #endif
|
|
|
151
|
|
50
|
152 ngx_table_elt_t *authorization;
|
|
0
|
153
|
|
50
|
154 ngx_table_elt_t *keep_alive;
|
|
0
|
155
|
|
122
|
156 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
|
|
50
|
157 ngx_table_elt_t *x_forwarded_for;
|
|
0
|
158 #endif
|
|
|
159
|
|
122
|
160 #if (NGX_HTTP_REALIP)
|
|
|
161 ngx_table_elt_t *x_real_ip;
|
|
|
162 #endif
|
|
|
163
|
|
38
|
164 #if (NGX_HTTP_HEADERS)
|
|
50
|
165 ngx_table_elt_t *accept;
|
|
|
166 ngx_table_elt_t *accept_language;
|
|
38
|
167 #endif
|
|
|
168
|
|
52
|
169 ngx_str_t user;
|
|
|
170 ngx_str_t passwd;
|
|
|
171
|
|
50
|
172 ngx_array_t cookies;
|
|
|
173
|
|
|
174 size_t host_name_len;
|
|
|
175 ssize_t content_length_n;
|
|
|
176 time_t keep_alive_n;
|
|
0
|
177
|
|
50
|
178 unsigned connection_type:2;
|
|
|
179 unsigned msie:1;
|
|
|
180 unsigned msie4:1;
|
|
|
181 unsigned opera:1;
|
|
|
182 unsigned gecko:1;
|
|
|
183 unsigned konqueror:1;
|
|
0
|
184 } ngx_http_headers_in_t;
|
|
|
185
|
|
|
186
|
|
|
187 typedef struct {
|
|
50
|
188 off_t start;
|
|
|
189 off_t end;
|
|
|
190 ngx_str_t content_range;
|
|
0
|
191 } ngx_http_range_t;
|
|
|
192
|
|
|
193
|
|
|
194 typedef struct {
|
|
50
|
195 ngx_list_t headers;
|
|
0
|
196
|
|
50
|
197 ngx_uint_t status;
|
|
|
198 ngx_str_t status_line;
|
|
0
|
199
|
|
50
|
200 ngx_table_elt_t *server;
|
|
|
201 ngx_table_elt_t *date;
|
|
|
202 ngx_table_elt_t *content_length;
|
|
|
203 ngx_table_elt_t *content_encoding;
|
|
|
204 ngx_table_elt_t *location;
|
|
|
205 ngx_table_elt_t *last_modified;
|
|
|
206 ngx_table_elt_t *content_range;
|
|
|
207 ngx_table_elt_t *accept_ranges;
|
|
52
|
208 ngx_table_elt_t *www_authenticate;
|
|
50
|
209 ngx_table_elt_t *expires;
|
|
|
210 ngx_table_elt_t *etag;
|
|
0
|
211
|
|
58
|
212 ngx_str_t content_type;
|
|
50
|
213 ngx_str_t charset;
|
|
|
214 ngx_array_t ranges;
|
|
0
|
215
|
|
58
|
216 ngx_array_t cache_control;
|
|
|
217
|
|
50
|
218 off_t content_length_n;
|
|
|
219 time_t date_time;
|
|
|
220 time_t last_modified_time;
|
|
0
|
221 } ngx_http_headers_out_t;
|
|
|
222
|
|
|
223
|
|
28
|
224 typedef void (*ngx_http_client_body_handler_pt)(ngx_http_request_t *r);
|
|
|
225
|
|
0
|
226 typedef struct {
|
|
28
|
227 ngx_temp_file_t *temp_file;
|
|
|
228 ngx_chain_t *bufs;
|
|
|
229 ngx_buf_t *buf;
|
|
|
230 size_t rest;
|
|
|
231 ngx_http_client_body_handler_pt post_handler;
|
|
0
|
232 } ngx_http_request_body_t;
|
|
|
233
|
|
|
234
|
|
|
235 typedef struct {
|
|
50
|
236 ngx_http_request_t *request;
|
|
0
|
237
|
|
50
|
238 ngx_buf_t **busy;
|
|
|
239 ngx_int_t nbusy;
|
|
0
|
240
|
|
50
|
241 ngx_buf_t **free;
|
|
|
242 ngx_int_t nfree;
|
|
0
|
243
|
|
50
|
244 ngx_uint_t pipeline; /* unsigned pipeline:1; */
|
|
0
|
245 } ngx_http_connection_t;
|
|
|
246
|
|
|
247
|
|
142
|
248 typedef struct {
|
|
|
249 ngx_hash_t hash;
|
|
|
250 ngx_hash_wildcard_t *dns_wildcards;
|
|
|
251 } ngx_http_virtual_names_t;
|
|
|
252
|
|
|
253
|
|
118
|
254 typedef void (*ngx_http_cleanup_pt)(void *data);
|
|
|
255
|
|
|
256 typedef struct ngx_http_cleanup_s ngx_http_cleanup_t;
|
|
|
257
|
|
|
258 struct ngx_http_cleanup_s {
|
|
142
|
259 ngx_http_cleanup_pt handler;
|
|
|
260 void *data;
|
|
|
261 ngx_http_cleanup_t *next;
|
|
118
|
262 };
|
|
|
263
|
|
|
264
|
|
58
|
265 typedef struct ngx_http_postponed_request_s ngx_http_postponed_request_t;
|
|
|
266
|
|
|
267 struct ngx_http_postponed_request_s {
|
|
84
|
268 ngx_http_request_t *request;
|
|
|
269 ngx_chain_t *out;
|
|
|
270 ngx_http_postponed_request_t *next;
|
|
58
|
271 };
|
|
|
272
|
|
|
273
|
|
0
|
274 typedef ngx_int_t (*ngx_http_handler_pt)(ngx_http_request_t *r);
|
|
58
|
275 typedef void (*ngx_http_event_handler_pt)(ngx_http_request_t *r);
|
|
|
276
|
|
0
|
277
|
|
|
278 struct ngx_http_request_s {
|
|
50
|
279 uint32_t signature; /* "HTTP" */
|
|
0
|
280
|
|
50
|
281 ngx_connection_t *connection;
|
|
0
|
282
|
|
50
|
283 void **ctx;
|
|
|
284 void **main_conf;
|
|
|
285 void **srv_conf;
|
|
|
286 void **loc_conf;
|
|
0
|
287
|
|
58
|
288 ngx_http_event_handler_pt read_event_handler;
|
|
|
289 ngx_http_event_handler_pt write_event_handler;
|
|
|
290
|
|
50
|
291 ngx_http_cache_t *cache;
|
|
0
|
292
|
|
50
|
293 ngx_http_upstream_t *upstream;
|
|
28
|
294
|
|
50
|
295 ngx_pool_t *pool;
|
|
|
296 ngx_buf_t *header_in;
|
|
0
|
297
|
|
50
|
298 ngx_http_headers_in_t headers_in;
|
|
|
299 ngx_http_headers_out_t headers_out;
|
|
0
|
300
|
|
50
|
301 ngx_http_request_body_t *request_body;
|
|
0
|
302
|
|
50
|
303 time_t lingering_time;
|
|
|
304 time_t start_time;
|
|
0
|
305
|
|
50
|
306 ngx_uint_t method;
|
|
|
307 ngx_uint_t http_version;
|
|
|
308 ngx_uint_t http_major;
|
|
|
309 ngx_uint_t http_minor;
|
|
126
|
310
|
|
50
|
311 ngx_str_t request_line;
|
|
|
312 ngx_str_t uri;
|
|
|
313 ngx_str_t args;
|
|
|
314 ngx_str_t exten;
|
|
|
315 ngx_str_t unparsed_uri;
|
|
0
|
316
|
|
50
|
317 ngx_str_t method_name;
|
|
|
318 ngx_str_t http_protocol;
|
|
126
|
319
|
|
58
|
320 ngx_chain_t *out;
|
|
50
|
321 ngx_http_request_t *main;
|
|
58
|
322 ngx_http_request_t *parent;
|
|
|
323 ngx_http_postponed_request_t *postponed;
|
|
0
|
324
|
|
50
|
325 uint32_t in_addr;
|
|
|
326 ngx_uint_t port;
|
|
|
327 ngx_str_t *port_text; /* ":80" */
|
|
|
328 ngx_str_t server_name;
|
|
142
|
329 ngx_http_virtual_names_t *virtual_names;
|
|
0
|
330
|
|
50
|
331 ngx_uint_t phase;
|
|
|
332 ngx_int_t phase_handler;
|
|
|
333 ngx_http_handler_pt content_handler;
|
|
92
|
334 ngx_uint_t access_code;
|
|
34
|
335
|
|
122
|
336 ngx_http_variable_value_t *variables;
|
|
50
|
337
|
|
144
|
338 size_t root_length;
|
|
|
339
|
|
76
|
340 size_t limit_rate;
|
|
|
341
|
|
0
|
342 /* used to learn the Apache compatible response length without a header */
|
|
50
|
343 size_t header_size;
|
|
0
|
344
|
|
50
|
345 size_t request_length;
|
|
24
|
346
|
|
50
|
347 void **err_ctx;
|
|
|
348 ngx_uint_t err_status;
|
|
0
|
349
|
|
50
|
350 ngx_http_connection_t *http_connection;
|
|
0
|
351
|
|
58
|
352 ngx_http_log_handler_pt log_handler;
|
|
|
353
|
|
118
|
354 ngx_http_cleanup_t *cleanup;
|
|
|
355
|
|
50
|
356 unsigned http_state:4;
|
|
0
|
357
|
|
2
|
358 /* URI with "/." and on Win32 with "//" */
|
|
50
|
359 unsigned complex_uri:1;
|
|
34
|
360
|
|
2
|
361 /* URI with "%" */
|
|
50
|
362 unsigned quoted_uri:1;
|
|
34
|
363
|
|
|
364 /* URI with "+" */
|
|
50
|
365 unsigned plus_in_uri:1;
|
|
34
|
366
|
|
38
|
367 /* URI with "\0" or "%00" */
|
|
50
|
368 unsigned zero_in_uri:1;
|
|
38
|
369
|
|
60
|
370 unsigned invalid_header:1;
|
|
|
371
|
|
58
|
372 unsigned valid_location:1;
|
|
54
|
373 unsigned valid_unparsed_uri:1;
|
|
50
|
374 unsigned uri_changed:1;
|
|
|
375 unsigned uri_changes:4;
|
|
34
|
376
|
|
146
|
377 unsigned fast_subrequest:1;
|
|
|
378
|
|
50
|
379 unsigned low_case_exten:1;
|
|
|
380 unsigned header_timeout_set:1;
|
|
0
|
381
|
|
50
|
382 unsigned proxy:1;
|
|
|
383 unsigned bypass_cache:1;
|
|
|
384 unsigned no_cache:1;
|
|
0
|
385
|
|
122
|
386 #if (NGX_HTTP_REALIP)
|
|
|
387
|
|
|
388 /*
|
|
|
389 * instead of using the request context data in ngx_http_realip_module
|
|
|
390 * we use the single bit in the request structure
|
|
|
391 */
|
|
|
392 unsigned realip_set:1;
|
|
|
393
|
|
|
394 #endif
|
|
|
395
|
|
0
|
396 #if 0
|
|
50
|
397 unsigned cachable:1;
|
|
0
|
398 #endif
|
|
58
|
399
|
|
50
|
400 unsigned pipeline:1;
|
|
|
401 unsigned plain_http:1;
|
|
|
402 unsigned chunked:1;
|
|
|
403 unsigned header_only:1;
|
|
|
404 unsigned keepalive:1;
|
|
|
405 unsigned lingering_close:1;
|
|
86
|
406 unsigned discard_body:1;
|
|
58
|
407 unsigned internal:1;
|
|
178
|
408 unsigned post_action:1;
|
|
|
409 unsigned request_complete:1;
|
|
58
|
410 unsigned done:1;
|
|
72
|
411 unsigned utf8:1;
|
|
0
|
412
|
|
62
|
413 unsigned main_filter_need_in_memory:1;
|
|
50
|
414 unsigned filter_need_in_memory:1;
|
|
|
415 unsigned filter_need_temporary:1;
|
|
130
|
416 unsigned allow_ranges:1;
|
|
0
|
417
|
|
|
418 #if (NGX_STAT_STUB)
|
|
50
|
419 unsigned stat_reading:1;
|
|
|
420 unsigned stat_writing:1;
|
|
0
|
421 #endif
|
|
|
422
|
|
|
423 /* used to parse HTTP headers */
|
|
50
|
424 ngx_uint_t state;
|
|
|
425 u_char *uri_start;
|
|
|
426 u_char *uri_end;
|
|
|
427 u_char *uri_ext;
|
|
|
428 u_char *args_start;
|
|
|
429 u_char *request_start;
|
|
|
430 u_char *request_end;
|
|
|
431 u_char *method_end;
|
|
|
432 u_char *schema_start;
|
|
|
433 u_char *schema_end;
|
|
|
434 u_char *host_start;
|
|
|
435 u_char *host_end;
|
|
|
436 u_char *port_start;
|
|
|
437 u_char *port_end;
|
|
|
438 u_char *header_name_start;
|
|
|
439 u_char *header_name_end;
|
|
|
440 u_char *header_start;
|
|
|
441 u_char *header_end;
|
|
56
|
442 ngx_uint_t header_hash;
|
|
0
|
443 };
|
|
|
444
|
|
|
445
|
|
118
|
446 extern ngx_http_header_t ngx_http_headers_in[];
|
|
|
447 extern ngx_http_header_out_t ngx_http_headers_out[];
|
|
0
|
448
|
|
|
449
|
|
|
450 #endif /* _NGX_HTTP_REQUEST_H_INCLUDED_ */
|
