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