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
|
|
43
|
|
44 #define NGX_HTTP_OK 200
|
|
45 #define NGX_HTTP_PARTIAL_CONTENT 206
|
|
46
|
|
47 #define NGX_HTTP_SPECIAL_RESPONSE 300
|
|
48 #define NGX_HTTP_MOVED_PERMANENTLY 301
|
|
49 #define NGX_HTTP_MOVED_TEMPORARILY 302
|
|
50 #define NGX_HTTP_NOT_MODIFIED 304
|
|
51
|
|
52 #define NGX_HTTP_BAD_REQUEST 400
|
52
|
53 #define NGX_HTTP_UNAUTHORIZED 401
|
0
|
54 #define NGX_HTTP_FORBIDDEN 403
|
|
55 #define NGX_HTTP_NOT_FOUND 404
|
|
56 #define NGX_HTTP_NOT_ALLOWED 405
|
|
57 #define NGX_HTTP_REQUEST_TIME_OUT 408
|
|
58 #define NGX_HTTP_REQUEST_ENTITY_TOO_LARGE 413
|
|
59 #define NGX_HTTP_REQUEST_URI_TOO_LARGE 414
|
|
60 #define NGX_HTTP_RANGE_NOT_SATISFIABLE 416
|
|
61
|
|
62
|
|
63 /* Our own HTTP codes */
|
|
64
|
|
65 #define NGX_HTTP_NGX_CODES NGX_HTTP_TO_HTTPS
|
|
66
|
|
67 /*
|
|
68 * We use the special code for the plain HTTP requests that are sent to
|
|
69 * HTTPS port to distinguish it from 4XX in an error page redirection
|
|
70 */
|
|
71 #define NGX_HTTP_TO_HTTPS 497
|
|
72
|
|
73 /*
|
|
74 * We use the special code for the requests with invalid host name
|
|
75 * to distinguish it from 4XX in an error page redirection
|
|
76 */
|
|
77 #define NGX_HTTP_INVALID_HOST 498
|
|
78
|
|
79 /*
|
|
80 * HTTP does not define the code for the case when a client closed
|
|
81 * the connection while we are processing its request so we introduce
|
|
82 * own code to log such situation when a client has closed the connection
|
|
83 * before we even try to send the HTTP header to it
|
|
84 */
|
|
85 #define NGX_HTTP_CLIENT_CLOSED_REQUEST 499
|
|
86
|
|
87
|
|
88 #define NGX_HTTP_INTERNAL_SERVER_ERROR 500
|
|
89 #define NGX_HTTP_NOT_IMPLEMENTED 501
|
|
90 #define NGX_HTTP_BAD_GATEWAY 502
|
|
91 #define NGX_HTTP_SERVICE_UNAVAILABLE 503
|
|
92 #define NGX_HTTP_GATEWAY_TIME_OUT 504
|
|
93
|
|
94
|
|
95 typedef enum {
|
|
96 NGX_HTTP_RESTRICT_HOST_OFF = 0,
|
|
97 NGX_HTTP_RESTRICT_HOST_ON,
|
|
98 NGX_HTTP_RESTRICT_HOST_CLOSE
|
|
99 } ngx_http_restrict_host_e;
|
|
100
|
|
101
|
|
102 typedef enum {
|
|
103 NGX_HTTP_INITING_REQUEST_STATE = 0,
|
|
104 NGX_HTTP_READING_REQUEST_STATE,
|
|
105 NGX_HTTP_PROCESS_REQUEST_STATE,
|
|
106
|
|
107 NGX_HTTP_CONNECT_UPSTREAM_STATE,
|
|
108 NGX_HTTP_WRITING_UPSTREAM_STATE,
|
|
109 NGX_HTTP_READING_UPSTREAM_STATE,
|
|
110
|
|
111 NGX_HTTP_WRITING_REQUEST_STATE,
|
|
112 NGX_HTTP_LINGERING_CLOSE_STATE,
|
|
113 NGX_HTTP_KEEPALIVE_STATE
|
|
114 } ngx_http_state_e;
|
|
115
|
|
116
|
|
117 typedef struct {
|
50
|
118 ngx_str_t name;
|
|
119 ngx_uint_t offset;
|
58
|
120 ngx_http_header_handler_pt handler;
|
0
|
121 } ngx_http_header_t;
|
|
122
|
|
123
|
|
124 typedef struct {
|
58
|
125 ngx_str_t name;
|
|
126 ngx_uint_t offset;
|
|
127 } ngx_http_header0_t;
|
|
128
|
|
129
|
|
130 typedef struct {
|
50
|
131 ngx_list_t headers;
|
0
|
132
|
50
|
133 ngx_table_elt_t *host;
|
|
134 ngx_table_elt_t *connection;
|
|
135 ngx_table_elt_t *if_modified_since;
|
|
136 ngx_table_elt_t *user_agent;
|
|
137 ngx_table_elt_t *referer;
|
|
138 ngx_table_elt_t *content_length;
|
|
139 ngx_table_elt_t *content_type;
|
0
|
140
|
50
|
141 ngx_table_elt_t *range;
|
0
|
142
|
|
143 #if (NGX_HTTP_GZIP)
|
50
|
144 ngx_table_elt_t *accept_encoding;
|
|
145 ngx_table_elt_t *via;
|
0
|
146 #endif
|
|
147
|
50
|
148 ngx_table_elt_t *authorization;
|
0
|
149
|
50
|
150 ngx_table_elt_t *keep_alive;
|
0
|
151
|
|
152 #if (NGX_HTTP_PROXY)
|
50
|
153 ngx_table_elt_t *x_forwarded_for;
|
|
154 ngx_table_elt_t *x_real_ip;
|
|
155 ngx_table_elt_t *x_url;
|
0
|
156 #endif
|
|
157
|
38
|
158 #if (NGX_HTTP_HEADERS)
|
50
|
159 ngx_table_elt_t *accept;
|
|
160 ngx_table_elt_t *accept_language;
|
38
|
161 #endif
|
|
162
|
52
|
163 ngx_str_t user;
|
|
164 ngx_str_t passwd;
|
|
165
|
50
|
166 ngx_array_t cookies;
|
|
167
|
|
168 size_t host_name_len;
|
|
169 ssize_t content_length_n;
|
|
170 time_t keep_alive_n;
|
0
|
171
|
50
|
172 unsigned connection_type:2;
|
|
173 unsigned msie:1;
|
|
174 unsigned msie4:1;
|
|
175 unsigned opera:1;
|
|
176 unsigned gecko:1;
|
|
177 unsigned konqueror:1;
|
0
|
178 } ngx_http_headers_in_t;
|
|
179
|
|
180
|
|
181 typedef struct {
|
50
|
182 off_t start;
|
|
183 off_t end;
|
|
184 ngx_str_t content_range;
|
0
|
185 } ngx_http_range_t;
|
|
186
|
|
187
|
|
188 typedef struct {
|
50
|
189 ngx_list_t headers;
|
0
|
190
|
50
|
191 ngx_uint_t status;
|
|
192 ngx_str_t status_line;
|
0
|
193
|
50
|
194 ngx_table_elt_t *server;
|
|
195 ngx_table_elt_t *date;
|
|
196 ngx_table_elt_t *content_length;
|
|
197 ngx_table_elt_t *content_encoding;
|
|
198 ngx_table_elt_t *location;
|
|
199 ngx_table_elt_t *last_modified;
|
|
200 ngx_table_elt_t *content_range;
|
|
201 ngx_table_elt_t *accept_ranges;
|
52
|
202 ngx_table_elt_t *www_authenticate;
|
50
|
203 ngx_table_elt_t *expires;
|
|
204 ngx_table_elt_t *etag;
|
0
|
205
|
58
|
206 ngx_str_t content_type;
|
50
|
207 ngx_str_t charset;
|
|
208 ngx_array_t ranges;
|
0
|
209
|
58
|
210 ngx_array_t cache_control;
|
|
211
|
50
|
212 off_t content_length_n;
|
|
213 time_t date_time;
|
|
214 time_t last_modified_time;
|
0
|
215 } ngx_http_headers_out_t;
|
|
216
|
|
217
|
28
|
218 typedef void (*ngx_http_client_body_handler_pt)(ngx_http_request_t *r);
|
|
219
|
0
|
220 typedef struct {
|
28
|
221 ngx_temp_file_t *temp_file;
|
|
222 ngx_chain_t *bufs;
|
|
223 ngx_buf_t *buf;
|
|
224 size_t rest;
|
|
225 ngx_http_client_body_handler_pt post_handler;
|
0
|
226 } ngx_http_request_body_t;
|
|
227
|
|
228
|
|
229 typedef struct {
|
50
|
230 ngx_http_request_t *request;
|
0
|
231
|
50
|
232 ngx_buf_t **busy;
|
|
233 ngx_int_t nbusy;
|
0
|
234
|
50
|
235 ngx_buf_t **free;
|
|
236 ngx_int_t nfree;
|
0
|
237
|
50
|
238 ngx_uint_t pipeline; /* unsigned pipeline:1; */
|
0
|
239 } ngx_http_connection_t;
|
|
240
|
|
241
|
58
|
242 typedef struct ngx_http_postponed_request_s ngx_http_postponed_request_t;
|
|
243
|
|
244 struct ngx_http_postponed_request_s {
|
|
245 ngx_http_request_t *request;
|
|
246 ngx_chain_t *out;
|
|
247 ngx_http_postponed_request_t *next;
|
|
248 };
|
|
249
|
|
250
|
0
|
251 typedef ngx_int_t (*ngx_http_handler_pt)(ngx_http_request_t *r);
|
58
|
252 typedef void (*ngx_http_event_handler_pt)(ngx_http_request_t *r);
|
|
253
|
0
|
254
|
|
255 struct ngx_http_request_s {
|
50
|
256 uint32_t signature; /* "HTTP" */
|
0
|
257
|
50
|
258 ngx_connection_t *connection;
|
0
|
259
|
50
|
260 void **ctx;
|
|
261 void **main_conf;
|
|
262 void **srv_conf;
|
|
263 void **loc_conf;
|
0
|
264
|
58
|
265 ngx_http_event_handler_pt read_event_handler;
|
|
266 ngx_http_event_handler_pt write_event_handler;
|
|
267
|
50
|
268 ngx_http_cache_t *cache;
|
0
|
269
|
50
|
270 ngx_http_upstream_t *upstream;
|
28
|
271
|
50
|
272 ngx_pool_t *pool;
|
|
273 ngx_buf_t *header_in;
|
0
|
274
|
50
|
275 ngx_http_headers_in_t headers_in;
|
|
276 ngx_http_headers_out_t headers_out;
|
0
|
277
|
50
|
278 ngx_http_request_body_t *request_body;
|
0
|
279
|
50
|
280 time_t lingering_time;
|
|
281 time_t start_time;
|
0
|
282
|
50
|
283 ngx_uint_t method;
|
|
284 ngx_uint_t http_version;
|
|
285 ngx_uint_t http_major;
|
|
286 ngx_uint_t http_minor;
|
|
287
|
|
288 ngx_str_t request_line;
|
|
289 ngx_str_t uri;
|
|
290 ngx_str_t args;
|
|
291 ngx_str_t exten;
|
|
292 ngx_str_t unparsed_uri;
|
0
|
293
|
50
|
294 ngx_str_t method_name;
|
|
295 ngx_str_t http_protocol;
|
|
296
|
58
|
297 ngx_chain_t *out;
|
50
|
298 ngx_http_request_t *main;
|
58
|
299 ngx_http_request_t *parent;
|
|
300 ngx_http_postponed_request_t *postponed;
|
0
|
301
|
50
|
302 uint32_t in_addr;
|
|
303 ngx_uint_t port;
|
|
304 ngx_str_t *port_text; /* ":80" */
|
|
305 ngx_str_t server_name;
|
|
306 ngx_http_in_addr_t *virtual_names;
|
0
|
307
|
50
|
308 ngx_uint_t phase;
|
|
309 ngx_int_t phase_handler;
|
|
310 ngx_http_handler_pt content_handler;
|
34
|
311
|
50
|
312 ngx_http_variable_value_t **variables;
|
|
313
|
0
|
314 /* used to learn the Apache compatible response length without a header */
|
50
|
315 size_t header_size;
|
0
|
316
|
50
|
317 size_t request_length;
|
24
|
318
|
50
|
319 void **err_ctx;
|
|
320 ngx_uint_t err_status;
|
0
|
321
|
50
|
322 ngx_http_connection_t *http_connection;
|
0
|
323
|
58
|
324 ngx_http_log_handler_pt log_handler;
|
|
325
|
50
|
326 unsigned http_state:4;
|
0
|
327
|
2
|
328 /* URI with "/." and on Win32 with "//" */
|
50
|
329 unsigned complex_uri:1;
|
34
|
330
|
2
|
331 /* URI with "%" */
|
50
|
332 unsigned quoted_uri:1;
|
34
|
333
|
|
334 /* URI with "+" */
|
50
|
335 unsigned plus_in_uri:1;
|
34
|
336
|
38
|
337 /* URI with "\0" or "%00" */
|
50
|
338 unsigned zero_in_uri:1;
|
38
|
339
|
58
|
340 unsigned valid_location:1;
|
54
|
341 unsigned valid_unparsed_uri:1;
|
50
|
342 unsigned uri_changed:1;
|
|
343 unsigned uri_changes:4;
|
34
|
344
|
50
|
345 unsigned low_case_exten:1;
|
|
346 unsigned header_timeout_set:1;
|
0
|
347
|
50
|
348 unsigned proxy:1;
|
|
349 unsigned bypass_cache:1;
|
|
350 unsigned no_cache:1;
|
0
|
351
|
|
352 #if 0
|
50
|
353 unsigned cachable:1;
|
0
|
354 #endif
|
58
|
355
|
50
|
356 unsigned pipeline:1;
|
|
357 unsigned plain_http:1;
|
|
358 unsigned chunked:1;
|
|
359 unsigned header_only:1;
|
|
360 unsigned keepalive:1;
|
|
361 unsigned lingering_close:1;
|
58
|
362 unsigned internal:1;
|
50
|
363 unsigned closed:1;
|
58
|
364 unsigned done:1;
|
0
|
365
|
50
|
366 unsigned filter_need_in_memory:1;
|
|
367 unsigned filter_ssi_need_in_memory:1;
|
|
368 unsigned filter_need_temporary:1;
|
|
369 unsigned filter_allow_ranges:1;
|
0
|
370
|
|
371 #if (NGX_STAT_STUB)
|
50
|
372 unsigned stat_reading:1;
|
|
373 unsigned stat_writing:1;
|
0
|
374 #endif
|
|
375
|
|
376 /* used to parse HTTP headers */
|
50
|
377 ngx_uint_t state;
|
|
378 u_char *uri_start;
|
|
379 u_char *uri_end;
|
|
380 u_char *uri_ext;
|
|
381 u_char *args_start;
|
|
382 u_char *request_start;
|
|
383 u_char *request_end;
|
|
384 u_char *method_end;
|
|
385 u_char *schema_start;
|
|
386 u_char *schema_end;
|
|
387 u_char *host_start;
|
|
388 u_char *host_end;
|
|
389 u_char *port_start;
|
|
390 u_char *port_end;
|
|
391 u_char *header_name_start;
|
|
392 u_char *header_name_end;
|
|
393 u_char *header_start;
|
|
394 u_char *header_end;
|
56
|
395 ngx_uint_t header_hash;
|
0
|
396 };
|
|
397
|
|
398
|
56
|
399 extern ngx_http_header_t ngx_http_headers_in[];
|
58
|
400 extern ngx_http_header0_t ngx_http_headers_out[];
|
0
|
401
|
|
402
|
|
403 #endif /* _NGX_HTTP_REQUEST_H_INCLUDED_ */
|