|
48
|
1
|
|
|
2 /*
|
|
|
3 * Copyright (C) Igor Sysoev
|
|
|
4 */
|
|
|
5
|
|
|
6
|
|
|
7 #include <ngx_config.h>
|
|
|
8 #include <ngx_core.h>
|
|
|
9 #include <ngx_event.h>
|
|
|
10 #include <ngx_http.h>
|
|
322
|
11 #include <nginx.h>
|
|
48
|
12
|
|
|
13
|
|
122
|
14 static ngx_int_t ngx_http_variable_request(ngx_http_request_t *r,
|
|
|
15 ngx_http_variable_value_t *v, uintptr_t data);
|
|
324
|
16 static void ngx_http_variable_request_set(ngx_http_request_t *r,
|
|
|
17 ngx_http_variable_value_t *v, uintptr_t data);
|
|
186
|
18 static void ngx_http_variable_request_set_size(ngx_http_request_t *r,
|
|
|
19 ngx_http_variable_value_t *v, uintptr_t data);
|
|
122
|
20 static ngx_int_t ngx_http_variable_header(ngx_http_request_t *r,
|
|
|
21 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
22 static ngx_int_t ngx_http_variable_headers(ngx_http_request_t *r,
|
|
|
23 ngx_http_variable_value_t *v, uintptr_t data);
|
|
126
|
24
|
|
|
25 static ngx_int_t ngx_http_variable_unknown_header_in(ngx_http_request_t *r,
|
|
122
|
26 ngx_http_variable_value_t *v, uintptr_t data);
|
|
126
|
27 static ngx_int_t ngx_http_variable_unknown_header_out(ngx_http_request_t *r,
|
|
|
28 ngx_http_variable_value_t *v, uintptr_t data);
|
|
392
|
29 static ngx_int_t ngx_http_variable_argument(ngx_http_request_t *r,
|
|
|
30 ngx_http_variable_value_t *v, uintptr_t data);
|
|
126
|
31
|
|
122
|
32 static ngx_int_t ngx_http_variable_host(ngx_http_request_t *r,
|
|
|
33 ngx_http_variable_value_t *v, uintptr_t data);
|
|
272
|
34 static ngx_int_t ngx_http_variable_binary_remote_addr(ngx_http_request_t *r,
|
|
|
35 ngx_http_variable_value_t *v, uintptr_t data);
|
|
122
|
36 static ngx_int_t ngx_http_variable_remote_addr(ngx_http_request_t *r,
|
|
|
37 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
38 static ngx_int_t ngx_http_variable_remote_port(ngx_http_request_t *r,
|
|
|
39 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
40 static ngx_int_t ngx_http_variable_server_addr(ngx_http_request_t *r,
|
|
|
41 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
42 static ngx_int_t ngx_http_variable_server_port(ngx_http_request_t *r,
|
|
|
43 ngx_http_variable_value_t *v, uintptr_t data);
|
|
238
|
44 static ngx_int_t ngx_http_variable_scheme(ngx_http_request_t *r,
|
|
|
45 ngx_http_variable_value_t *v, uintptr_t data);
|
|
324
|
46 static ngx_int_t ngx_http_variable_is_args(ngx_http_request_t *r,
|
|
|
47 ngx_http_variable_value_t *v, uintptr_t data);
|
|
122
|
48 static ngx_int_t ngx_http_variable_document_root(ngx_http_request_t *r,
|
|
|
49 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
50 static ngx_int_t ngx_http_variable_request_filename(ngx_http_request_t *r,
|
|
|
51 ngx_http_variable_value_t *v, uintptr_t data);
|
|
362
|
52 static ngx_int_t ngx_http_variable_server_name(ngx_http_request_t *r,
|
|
|
53 ngx_http_variable_value_t *v, uintptr_t data);
|
|
122
|
54 static ngx_int_t ngx_http_variable_request_method(ngx_http_request_t *r,
|
|
|
55 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
56 static ngx_int_t ngx_http_variable_remote_user(ngx_http_request_t *r,
|
|
|
57 ngx_http_variable_value_t *v, uintptr_t data);
|
|
160
|
58 static ngx_int_t ngx_http_variable_body_bytes_sent(ngx_http_request_t *r,
|
|
|
59 ngx_http_variable_value_t *v, uintptr_t data);
|
|
178
|
60 static ngx_int_t ngx_http_variable_request_completion(ngx_http_request_t *r,
|
|
|
61 ngx_http_variable_value_t *v, uintptr_t data);
|
|
244
|
62 static ngx_int_t ngx_http_variable_request_body_file(ngx_http_request_t *r,
|
|
|
63 ngx_http_variable_value_t *v, uintptr_t data);
|
|
48
|
64
|
|
190
|
65 static ngx_int_t ngx_http_variable_sent_content_type(ngx_http_request_t *r,
|
|
|
66 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
67 static ngx_int_t ngx_http_variable_sent_content_length(ngx_http_request_t *r,
|
|
|
68 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
69 static ngx_int_t ngx_http_variable_sent_last_modified(ngx_http_request_t *r,
|
|
|
70 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
71 static ngx_int_t ngx_http_variable_sent_connection(ngx_http_request_t *r,
|
|
|
72 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
73 static ngx_int_t ngx_http_variable_sent_keep_alive(ngx_http_request_t *r,
|
|
|
74 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
75 static ngx_int_t ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r,
|
|
|
76 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
77
|
|
322
|
78 static ngx_int_t ngx_http_variable_nginx_version(ngx_http_request_t *r,
|
|
|
79 ngx_http_variable_value_t *v, uintptr_t data);
|
|
376
|
80 static ngx_int_t ngx_http_variable_hostname(ngx_http_request_t *r,
|
|
|
81 ngx_http_variable_value_t *v, uintptr_t data);
|
|
48
|
82
|
|
58
|
83 /*
|
|
|
84 * TODO:
|
|
|
85 * Apache CGI: AUTH_TYPE, PATH_INFO (null), PATH_TRANSLATED
|
|
|
86 * REMOTE_HOST (null), REMOTE_IDENT (null),
|
|
|
87 * SERVER_SOFTWARE
|
|
|
88 *
|
|
120
|
89 * Apache SSI: DOCUMENT_NAME, LAST_MODIFIED, USER_NAME (file owner)
|
|
58
|
90 */
|
|
48
|
91
|
|
190
|
92 /*
|
|
|
93 * the $http_host, $http_user_agent, $http_referer, $http_via,
|
|
|
94 * and $http_x_forwarded_for variables may be handled by generic
|
|
|
95 * ngx_http_variable_unknown_header_in(), but for perfomance reasons
|
|
|
96 * they are handled using dedicated entries
|
|
|
97 */
|
|
|
98
|
|
58
|
99 static ngx_http_variable_t ngx_http_core_variables[] = {
|
|
|
100
|
|
186
|
101 { ngx_string("http_host"), NULL, ngx_http_variable_header,
|
|
82
|
102 offsetof(ngx_http_request_t, headers_in.host), 0, 0 },
|
|
48
|
103
|
|
186
|
104 { ngx_string("http_user_agent"), NULL, ngx_http_variable_header,
|
|
82
|
105 offsetof(ngx_http_request_t, headers_in.user_agent), 0, 0 },
|
|
58
|
106
|
|
186
|
107 { ngx_string("http_referer"), NULL, ngx_http_variable_header,
|
|
82
|
108 offsetof(ngx_http_request_t, headers_in.referer), 0, 0 },
|
|
48
|
109
|
|
|
110 #if (NGX_HTTP_GZIP)
|
|
186
|
111 { ngx_string("http_via"), NULL, ngx_http_variable_header,
|
|
82
|
112 offsetof(ngx_http_request_t, headers_in.via), 0, 0 },
|
|
48
|
113 #endif
|
|
|
114
|
|
286
|
115 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
|
|
186
|
116 { ngx_string("http_x_forwarded_for"), NULL, ngx_http_variable_header,
|
|
82
|
117 offsetof(ngx_http_request_t, headers_in.x_forwarded_for), 0, 0 },
|
|
48
|
118 #endif
|
|
|
119
|
|
186
|
120 { ngx_string("http_cookie"), NULL, ngx_http_variable_headers,
|
|
82
|
121 offsetof(ngx_http_request_t, headers_in.cookies), 0, 0 },
|
|
64
|
122
|
|
186
|
123 { ngx_string("content_length"), NULL, ngx_http_variable_header,
|
|
82
|
124 offsetof(ngx_http_request_t, headers_in.content_length), 0, 0 },
|
|
58
|
125
|
|
186
|
126 { ngx_string("content_type"), NULL, ngx_http_variable_header,
|
|
82
|
127 offsetof(ngx_http_request_t, headers_in.content_type), 0, 0 },
|
|
58
|
128
|
|
186
|
129 { ngx_string("host"), NULL, ngx_http_variable_host, 0, 0, 0 },
|
|
58
|
130
|
|
272
|
131 { ngx_string("binary_remote_addr"), NULL,
|
|
|
132 ngx_http_variable_binary_remote_addr, 0, 0, 0 },
|
|
|
133
|
|
186
|
134 { ngx_string("remote_addr"), NULL, ngx_http_variable_remote_addr, 0, 0, 0 },
|
|
48
|
135
|
|
186
|
136 { ngx_string("remote_port"), NULL, ngx_http_variable_remote_port, 0, 0, 0 },
|
|
58
|
137
|
|
186
|
138 { ngx_string("server_addr"), NULL, ngx_http_variable_server_addr, 0, 0, 0 },
|
|
58
|
139
|
|
186
|
140 { ngx_string("server_port"), NULL, ngx_http_variable_server_port, 0, 0, 0 },
|
|
58
|
141
|
|
186
|
142 { ngx_string("server_protocol"), NULL, ngx_http_variable_request,
|
|
82
|
143 offsetof(ngx_http_request_t, http_protocol), 0, 0 },
|
|
58
|
144
|
|
238
|
145 { ngx_string("scheme"), NULL, ngx_http_variable_scheme, 0, 0, 0 },
|
|
|
146
|
|
186
|
147 { ngx_string("request_uri"), NULL, ngx_http_variable_request,
|
|
82
|
148 offsetof(ngx_http_request_t, unparsed_uri), 0, 0 },
|
|
48
|
149
|
|
186
|
150 { ngx_string("uri"), NULL, ngx_http_variable_request,
|
|
|
151 offsetof(ngx_http_request_t, uri),
|
|
340
|
152 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
186
|
153
|
|
|
154 { ngx_string("document_uri"), NULL, ngx_http_variable_request,
|
|
122
|
155 offsetof(ngx_http_request_t, uri),
|
|
340
|
156 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
122
|
157
|
|
186
|
158 { ngx_string("request"), NULL, ngx_http_variable_request,
|
|
118
|
159 offsetof(ngx_http_request_t, request_line), 0, 0 },
|
|
|
160
|
|
186
|
161 { ngx_string("document_root"), NULL,
|
|
340
|
162 ngx_http_variable_document_root, 0, NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
58
|
163
|
|
186
|
164 { ngx_string("query_string"), NULL, ngx_http_variable_request,
|
|
58
|
165 offsetof(ngx_http_request_t, args),
|
|
340
|
166 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
48
|
167
|
|
324
|
168 { ngx_string("args"),
|
|
|
169 ngx_http_variable_request_set,
|
|
|
170 ngx_http_variable_request,
|
|
138
|
171 offsetof(ngx_http_request_t, args),
|
|
340
|
172 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
324
|
173
|
|
|
174 { ngx_string("is_args"), NULL, ngx_http_variable_is_args,
|
|
340
|
175 0, NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
138
|
176
|
|
186
|
177 { ngx_string("request_filename"), NULL,
|
|
|
178 ngx_http_variable_request_filename, 0,
|
|
340
|
179 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
58
|
180
|
|
362
|
181 { ngx_string("server_name"), NULL, ngx_http_variable_server_name, 0, 0, 0 },
|
|
58
|
182
|
|
186
|
183 { ngx_string("request_method"), NULL,
|
|
|
184 ngx_http_variable_request_method, 0, 0, 0 },
|
|
58
|
185
|
|
186
|
186 { ngx_string("remote_user"), NULL, ngx_http_variable_remote_user, 0, 0, 0 },
|
|
58
|
187
|
|
186
|
188 { ngx_string("body_bytes_sent"), NULL, ngx_http_variable_body_bytes_sent,
|
|
160
|
189 0, 0, 0 },
|
|
|
190
|
|
186
|
191 { ngx_string("request_completion"), NULL,
|
|
|
192 ngx_http_variable_request_completion,
|
|
178
|
193 0, 0, 0 },
|
|
|
194
|
|
244
|
195 { ngx_string("request_body_file"), NULL,
|
|
|
196 ngx_http_variable_request_body_file,
|
|
|
197 0, 0, 0 },
|
|
|
198
|
|
190
|
199 { ngx_string("sent_http_content_type"), NULL,
|
|
|
200 ngx_http_variable_sent_content_type, 0, 0, 0 },
|
|
|
201
|
|
|
202 { ngx_string("sent_http_content_length"), NULL,
|
|
|
203 ngx_http_variable_sent_content_length, 0, 0, 0 },
|
|
|
204
|
|
|
205 { ngx_string("sent_http_last_modified"), NULL,
|
|
|
206 ngx_http_variable_sent_last_modified, 0, 0, 0 },
|
|
|
207
|
|
|
208 { ngx_string("sent_http_connection"), NULL,
|
|
|
209 ngx_http_variable_sent_connection, 0, 0, 0 },
|
|
|
210
|
|
|
211 { ngx_string("sent_http_keep_alive"), NULL,
|
|
|
212 ngx_http_variable_sent_keep_alive, 0, 0, 0 },
|
|
|
213
|
|
|
214 { ngx_string("sent_http_transfer_encoding"), NULL,
|
|
|
215 ngx_http_variable_sent_transfer_encoding, 0, 0, 0 },
|
|
|
216
|
|
|
217 { ngx_string("sent_http_cache_control"), NULL, ngx_http_variable_headers,
|
|
|
218 offsetof(ngx_http_request_t, headers_out.cache_control), 0, 0 },
|
|
|
219
|
|
186
|
220 { ngx_string("limit_rate"), ngx_http_variable_request_set_size,
|
|
|
221 ngx_http_variable_request,
|
|
|
222 offsetof(ngx_http_request_t, limit_rate),
|
|
340
|
223 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
186
|
224
|
|
322
|
225 { ngx_string("nginx_version"), NULL, ngx_http_variable_nginx_version,
|
|
|
226 0, 0, 0 },
|
|
|
227
|
|
376
|
228 { ngx_string("hostname"), NULL, ngx_http_variable_hostname,
|
|
|
229 0, 0, 0 },
|
|
|
230
|
|
186
|
231 { ngx_null_string, NULL, NULL, 0, 0, 0 }
|
|
48
|
232 };
|
|
|
233
|
|
|
234
|
|
126
|
235 ngx_http_variable_value_t ngx_http_variable_null_value =
|
|
|
236 ngx_http_variable("");
|
|
|
237 ngx_http_variable_value_t ngx_http_variable_true_value =
|
|
|
238 ngx_http_variable("1");
|
|
|
239
|
|
|
240
|
|
48
|
241 ngx_http_variable_t *
|
|
58
|
242 ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags)
|
|
|
243 {
|
|
160
|
244 ngx_int_t rc;
|
|
58
|
245 ngx_uint_t i;
|
|
160
|
246 ngx_hash_key_t *key;
|
|
58
|
247 ngx_http_variable_t *v;
|
|
|
248 ngx_http_core_main_conf_t *cmcf;
|
|
|
249
|
|
|
250 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
|
251
|
|
160
|
252 key = cmcf->variables_keys->keys.elts;
|
|
|
253 for (i = 0; i < cmcf->variables_keys->keys.nelts; i++) {
|
|
|
254 if (name->len != key[i].key.len
|
|
|
255 || ngx_strncasecmp(name->data, key[i].key.data, name->len) != 0)
|
|
58
|
256 {
|
|
|
257 continue;
|
|
|
258 }
|
|
|
259
|
|
160
|
260 v = key[i].value;
|
|
|
261
|
|
340
|
262 if (!(v->flags & NGX_HTTP_VAR_CHANGEABLE)) {
|
|
58
|
263 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
264 "the duplicate \"%V\" variable", name);
|
|
|
265 return NULL;
|
|
|
266 }
|
|
|
267
|
|
160
|
268 return v;
|
|
58
|
269 }
|
|
|
270
|
|
160
|
271 v = ngx_palloc(cf->pool, sizeof(ngx_http_variable_t));
|
|
58
|
272 if (v == NULL) {
|
|
|
273 return NULL;
|
|
|
274 }
|
|
|
275
|
|
|
276 v->name.len = name->len;
|
|
382
|
277 v->name.data = ngx_pnalloc(cf->pool, name->len);
|
|
58
|
278 if (v->name.data == NULL) {
|
|
|
279 return NULL;
|
|
|
280 }
|
|
|
281
|
|
392
|
282 ngx_strlow(v->name.data, name->data, name->len);
|
|
58
|
283
|
|
186
|
284 v->set_handler = NULL;
|
|
|
285 v->get_handler = NULL;
|
|
58
|
286 v->data = 0;
|
|
|
287 v->flags = flags;
|
|
82
|
288 v->index = 0;
|
|
58
|
289
|
|
160
|
290 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, 0);
|
|
|
291
|
|
|
292 if (rc == NGX_ERROR) {
|
|
|
293 return NULL;
|
|
|
294 }
|
|
|
295
|
|
|
296 if (rc == NGX_BUSY) {
|
|
|
297 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
298 "conflicting variable name \"%V\"", name);
|
|
|
299 return NULL;
|
|
|
300 }
|
|
|
301
|
|
58
|
302 return v;
|
|
|
303 }
|
|
|
304
|
|
|
305
|
|
|
306 ngx_int_t
|
|
|
307 ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name)
|
|
48
|
308 {
|
|
50
|
309 ngx_uint_t i;
|
|
|
310 ngx_http_variable_t *v;
|
|
48
|
311 ngx_http_core_main_conf_t *cmcf;
|
|
|
312
|
|
|
313 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
|
314
|
|
50
|
315 v = cmcf->variables.elts;
|
|
|
316
|
|
|
317 if (v == NULL) {
|
|
48
|
318 if (ngx_array_init(&cmcf->variables, cf->pool, 4,
|
|
|
319 sizeof(ngx_http_variable_t)) == NGX_ERROR)
|
|
|
320 {
|
|
58
|
321 return NGX_ERROR;
|
|
48
|
322 }
|
|
50
|
323
|
|
|
324 } else {
|
|
|
325 for (i = 0; i < cmcf->variables.nelts; i++) {
|
|
|
326 if (name->len != v[i].name.len
|
|
|
327 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0)
|
|
|
328 {
|
|
|
329 continue;
|
|
|
330 }
|
|
|
331
|
|
58
|
332 return i;
|
|
50
|
333 }
|
|
48
|
334 }
|
|
|
335
|
|
50
|
336 v = ngx_array_push(&cmcf->variables);
|
|
|
337 if (v == NULL) {
|
|
58
|
338 return NGX_ERROR;
|
|
48
|
339 }
|
|
|
340
|
|
50
|
341 v->name.len = name->len;
|
|
382
|
342 v->name.data = ngx_pnalloc(cf->pool, name->len);
|
|
50
|
343 if (v->name.data == NULL) {
|
|
58
|
344 return NGX_ERROR;
|
|
50
|
345 }
|
|
48
|
346
|
|
392
|
347 ngx_strlow(v->name.data, name->data, name->len);
|
|
50
|
348
|
|
186
|
349 v->set_handler = NULL;
|
|
|
350 v->get_handler = NULL;
|
|
50
|
351 v->data = 0;
|
|
58
|
352 v->flags = 0;
|
|
82
|
353 v->index = cmcf->variables.nelts - 1;
|
|
50
|
354
|
|
58
|
355 return cmcf->variables.nelts - 1;
|
|
48
|
356 }
|
|
|
357
|
|
|
358
|
|
|
359 ngx_http_variable_value_t *
|
|
|
360 ngx_http_get_indexed_variable(ngx_http_request_t *r, ngx_uint_t index)
|
|
|
361 {
|
|
50
|
362 ngx_http_variable_t *v;
|
|
48
|
363 ngx_http_core_main_conf_t *cmcf;
|
|
|
364
|
|
|
365 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
366
|
|
102
|
367 if (cmcf->variables.nelts <= index) {
|
|
48
|
368 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
369 "unknown variable index: %d", index);
|
|
|
370 return NULL;
|
|
|
371 }
|
|
|
372
|
|
122
|
373 if (r->variables[index].not_found || r->variables[index].valid) {
|
|
|
374 return &r->variables[index];
|
|
50
|
375 }
|
|
48
|
376
|
|
50
|
377 v = cmcf->variables.elts;
|
|
48
|
378
|
|
186
|
379 if (v[index].get_handler(r, &r->variables[index], v[index].data)
|
|
|
380 == NGX_OK)
|
|
|
381 {
|
|
340
|
382 if (v[index].flags & NGX_HTTP_VAR_NOCACHEABLE) {
|
|
|
383 r->variables[index].no_cacheable = 1;
|
|
48
|
384 }
|
|
122
|
385
|
|
|
386 return &r->variables[index];
|
|
48
|
387 }
|
|
|
388
|
|
206
|
389 r->variables[index].valid = 0;
|
|
|
390 r->variables[index].not_found = 1;
|
|
|
391
|
|
122
|
392 return NULL;
|
|
|
393 }
|
|
|
394
|
|
|
395
|
|
|
396 ngx_http_variable_value_t *
|
|
|
397 ngx_http_get_flushed_variable(ngx_http_request_t *r, ngx_uint_t index)
|
|
|
398 {
|
|
294
|
399 ngx_http_variable_value_t *v;
|
|
122
|
400
|
|
|
401 v = &r->variables[index];
|
|
|
402
|
|
|
403 if (v->valid) {
|
|
340
|
404 if (!v->no_cacheable) {
|
|
122
|
405 return v;
|
|
|
406 }
|
|
|
407
|
|
|
408 v->valid = 0;
|
|
|
409 v->not_found = 0;
|
|
58
|
410 }
|
|
50
|
411
|
|
122
|
412 return ngx_http_get_indexed_variable(r, index);
|
|
48
|
413 }
|
|
|
414
|
|
|
415
|
|
|
416 ngx_http_variable_value_t *
|
|
184
|
417 ngx_http_get_variable(ngx_http_request_t *r, ngx_str_t *name, ngx_uint_t key,
|
|
|
418 ngx_uint_t nowarn)
|
|
48
|
419 {
|
|
50
|
420 ngx_http_variable_t *v;
|
|
122
|
421 ngx_http_variable_value_t *vv;
|
|
48
|
422 ngx_http_core_main_conf_t *cmcf;
|
|
|
423
|
|
|
424 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
425
|
|
160
|
426 v = ngx_hash_find(&cmcf->variables_hash, key, name->data, name->len);
|
|
48
|
427
|
|
160
|
428 if (v) {
|
|
|
429 if (v->flags & NGX_HTTP_VAR_INDEXED) {
|
|
|
430 return ngx_http_get_indexed_variable(r, v->index);
|
|
68
|
431
|
|
|
432 } else {
|
|
48
|
433
|
|
122
|
434 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
50
|
435
|
|
186
|
436 if (vv && v->get_handler(r, vv, v->data) == NGX_OK) {
|
|
122
|
437 return vv;
|
|
|
438 }
|
|
58
|
439
|
|
122
|
440 return NULL;
|
|
|
441 }
|
|
58
|
442 }
|
|
|
443
|
|
|
444 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
|
445 if (vv == NULL) {
|
|
|
446 return NULL;
|
|
|
447 }
|
|
|
448
|
|
122
|
449 if (ngx_strncmp(name->data, "http_", 5) == 0) {
|
|
48
|
450
|
|
126
|
451 if (ngx_http_variable_unknown_header_in(r, vv, (uintptr_t) name)
|
|
|
452 == NGX_OK)
|
|
|
453 {
|
|
|
454 return vv;
|
|
|
455 }
|
|
|
456
|
|
|
457 return NULL;
|
|
|
458 }
|
|
|
459
|
|
|
460 if (ngx_strncmp(name->data, "sent_http_", 10) == 0) {
|
|
|
461
|
|
|
462 if (ngx_http_variable_unknown_header_out(r, vv, (uintptr_t) name)
|
|
|
463 == NGX_OK)
|
|
122
|
464 {
|
|
|
465 return vv;
|
|
|
466 }
|
|
48
|
467
|
|
|
468 return NULL;
|
|
|
469 }
|
|
|
470
|
|
296
|
471 if (ngx_strncmp(name->data, "upstream_http_", 10) == 0) {
|
|
|
472
|
|
|
473 if (ngx_http_upstream_header_variable(r, vv, (uintptr_t) name)
|
|
|
474 == NGX_OK)
|
|
|
475 {
|
|
|
476 return vv;
|
|
|
477 }
|
|
|
478
|
|
|
479 return NULL;
|
|
|
480 }
|
|
|
481
|
|
392
|
482 if (ngx_strncmp(name->data, "arg_", 4) == 0) {
|
|
|
483
|
|
|
484 if (ngx_http_variable_argument(r, vv, (uintptr_t) name) == NGX_OK) {
|
|
|
485 return vv;
|
|
|
486 }
|
|
|
487
|
|
|
488 return NULL;
|
|
|
489 }
|
|
|
490
|
|
184
|
491 vv->not_found = 1;
|
|
122
|
492
|
|
184
|
493 if (nowarn == 0) {
|
|
|
494 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
495 "unknown \"%V\" variable", name);
|
|
|
496 }
|
|
48
|
497
|
|
50
|
498 return vv;
|
|
48
|
499 }
|
|
|
500
|
|
|
501
|
|
122
|
502 static ngx_int_t
|
|
|
503 ngx_http_variable_request(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
504 uintptr_t data)
|
|
|
505 {
|
|
|
506 ngx_str_t *s;
|
|
|
507
|
|
|
508 s = (ngx_str_t *) ((char *) r + data);
|
|
|
509
|
|
|
510 if (s->data) {
|
|
|
511 v->len = s->len;
|
|
|
512 v->valid = 1;
|
|
340
|
513 v->no_cacheable = 0;
|
|
122
|
514 v->not_found = 0;
|
|
|
515 v->data = s->data;
|
|
|
516
|
|
|
517 } else {
|
|
|
518 v->not_found = 1;
|
|
|
519 }
|
|
|
520
|
|
|
521 return NGX_OK;
|
|
|
522 }
|
|
|
523
|
|
|
524
|
|
186
|
525 static void
|
|
324
|
526 ngx_http_variable_request_set(ngx_http_request_t *r,
|
|
|
527 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
528 {
|
|
|
529 ngx_str_t *s;
|
|
|
530
|
|
|
531 s = (ngx_str_t *) ((char *) r + data);
|
|
|
532
|
|
|
533 s->len = v->len;
|
|
|
534 s->data = v->data;
|
|
|
535 }
|
|
|
536
|
|
|
537
|
|
|
538 static void
|
|
186
|
539 ngx_http_variable_request_set_size(ngx_http_request_t *r,
|
|
|
540 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
541 {
|
|
|
542 ssize_t s, *sp;
|
|
|
543 ngx_str_t val;
|
|
|
544
|
|
320
|
545 val.len = v->len;
|
|
186
|
546 val.data = v->data;
|
|
|
547
|
|
|
548 s = ngx_parse_size(&val);
|
|
|
549
|
|
|
550 if (s == NGX_ERROR) {
|
|
|
551 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
552 "invalid size \"%V\"", &val);
|
|
|
553 return;
|
|
|
554 }
|
|
|
555
|
|
|
556 sp = (ssize_t *) ((char *) r + data);
|
|
|
557
|
|
|
558 *sp = s;
|
|
|
559
|
|
|
560 return;
|
|
|
561 }
|
|
|
562
|
|
|
563
|
|
122
|
564 static ngx_int_t
|
|
|
565 ngx_http_variable_header(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
566 uintptr_t data)
|
|
64
|
567 {
|
|
122
|
568 ngx_table_elt_t *h;
|
|
|
569
|
|
|
570 h = *(ngx_table_elt_t **) ((char *) r + data);
|
|
|
571
|
|
|
572 if (h) {
|
|
|
573 v->len = h->value.len;
|
|
|
574 v->valid = 1;
|
|
340
|
575 v->no_cacheable = 0;
|
|
122
|
576 v->not_found = 0;
|
|
|
577 v->data = h->value.data;
|
|
|
578
|
|
|
579 } else {
|
|
|
580 v->not_found = 1;
|
|
|
581 }
|
|
|
582
|
|
|
583 return NGX_OK;
|
|
|
584 }
|
|
|
585
|
|
|
586
|
|
|
587 static ngx_int_t
|
|
|
588 ngx_http_variable_headers(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
589 uintptr_t data)
|
|
|
590 {
|
|
216
|
591 ssize_t len;
|
|
122
|
592 u_char *p;
|
|
216
|
593 ngx_uint_t i, n;
|
|
122
|
594 ngx_array_t *a;
|
|
|
595 ngx_table_elt_t **h;
|
|
64
|
596
|
|
|
597 a = (ngx_array_t *) ((char *) r + data);
|
|
|
598
|
|
216
|
599 n = a->nelts;
|
|
|
600
|
|
|
601 if (n == 0) {
|
|
122
|
602 v->not_found = 1;
|
|
|
603 return NGX_OK;
|
|
64
|
604 }
|
|
|
605
|
|
122
|
606 v->valid = 1;
|
|
340
|
607 v->no_cacheable = 0;
|
|
122
|
608 v->not_found = 0;
|
|
64
|
609
|
|
|
610 h = a->elts;
|
|
|
611
|
|
216
|
612 if (n == 1) {
|
|
122
|
613 v->len = (*h)->value.len;
|
|
|
614 v->data = (*h)->value.data;
|
|
64
|
615
|
|
122
|
616 return NGX_OK;
|
|
64
|
617 }
|
|
|
618
|
|
216
|
619 len = - (ssize_t) (sizeof("; ") - 1);
|
|
122
|
620
|
|
216
|
621 for (i = 0; i < n; i++) {
|
|
122
|
622 len += h[i]->value.len + sizeof("; ") - 1;
|
|
64
|
623 }
|
|
|
624
|
|
382
|
625 p = ngx_pnalloc(r->pool, len);
|
|
122
|
626 if (p == NULL) {
|
|
|
627 return NGX_ERROR;
|
|
|
628 }
|
|
|
629
|
|
|
630 v->len = len;
|
|
|
631 v->data = p;
|
|
64
|
632
|
|
|
633 for (i = 0; /* void */ ; i++) {
|
|
122
|
634 p = ngx_copy(p, h[i]->value.data, h[i]->value.len);
|
|
64
|
635
|
|
216
|
636 if (i == n - 1) {
|
|
64
|
637 break;
|
|
|
638 }
|
|
|
639
|
|
|
640 *p++ = ';'; *p++ = ' ';
|
|
|
641 }
|
|
|
642
|
|
122
|
643 return NGX_OK;
|
|
64
|
644 }
|
|
|
645
|
|
|
646
|
|
122
|
647 static ngx_int_t
|
|
126
|
648 ngx_http_variable_unknown_header_in(ngx_http_request_t *r,
|
|
|
649 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
650 {
|
|
|
651 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
|
652 &r->headers_in.headers.part,
|
|
|
653 sizeof("http_") - 1);
|
|
|
654 }
|
|
|
655
|
|
|
656
|
|
|
657 static ngx_int_t
|
|
|
658 ngx_http_variable_unknown_header_out(ngx_http_request_t *r,
|
|
122
|
659 ngx_http_variable_value_t *v, uintptr_t data)
|
|
48
|
660 {
|
|
126
|
661 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
|
662 &r->headers_out.headers.part,
|
|
|
663 sizeof("sent_http_") - 1);
|
|
|
664 }
|
|
50
|
665
|
|
126
|
666
|
|
296
|
667 ngx_int_t
|
|
126
|
668 ngx_http_variable_unknown_header(ngx_http_variable_value_t *v, ngx_str_t *var,
|
|
|
669 ngx_list_part_t *part, size_t prefix)
|
|
|
670 {
|
|
122
|
671 u_char ch;
|
|
|
672 ngx_uint_t i, n;
|
|
|
673 ngx_table_elt_t *header;
|
|
48
|
674
|
|
|
675 header = part->elts;
|
|
|
676
|
|
|
677 for (i = 0; /* void */ ; i++) {
|
|
|
678
|
|
|
679 if (i >= part->nelts) {
|
|
|
680 if (part->next == NULL) {
|
|
|
681 break;
|
|
|
682 }
|
|
|
683
|
|
|
684 part = part->next;
|
|
|
685 header = part->elts;
|
|
|
686 i = 0;
|
|
|
687 }
|
|
|
688
|
|
126
|
689 for (n = 0; n + prefix < var->len && n < header[i].key.len; n++) {
|
|
48
|
690 ch = header[i].key.data[n];
|
|
|
691
|
|
58
|
692 if (ch >= 'A' && ch <= 'Z') {
|
|
|
693 ch |= 0x20;
|
|
48
|
694
|
|
|
695 } else if (ch == '-') {
|
|
|
696 ch = '_';
|
|
|
697 }
|
|
|
698
|
|
126
|
699 if (var->data[n + prefix] != ch) {
|
|
48
|
700 break;
|
|
|
701 }
|
|
|
702 }
|
|
|
703
|
|
242
|
704 if (n + prefix == var->len && n == header[i].key.len) {
|
|
122
|
705 v->len = header[i].value.len;
|
|
|
706 v->valid = 1;
|
|
340
|
707 v->no_cacheable = 0;
|
|
122
|
708 v->not_found = 0;
|
|
|
709 v->data = header[i].value.data;
|
|
48
|
710
|
|
122
|
711 return NGX_OK;
|
|
48
|
712 }
|
|
|
713 }
|
|
|
714
|
|
122
|
715 v->not_found = 1;
|
|
|
716
|
|
|
717 return NGX_OK;
|
|
58
|
718 }
|
|
|
719
|
|
|
720
|
|
122
|
721 static ngx_int_t
|
|
392
|
722 ngx_http_variable_argument(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
723 uintptr_t data)
|
|
|
724 {
|
|
|
725 ngx_str_t *name = (ngx_str_t *) data;
|
|
|
726
|
|
|
727 u_char *p, *arg;
|
|
|
728 size_t len;
|
|
|
729
|
|
|
730 if (r->args.len == 0) {
|
|
|
731 v->not_found = 1;
|
|
|
732 return NGX_OK;
|
|
|
733 }
|
|
|
734
|
|
|
735 len = name->len - 1 - (sizeof("arg_") - 1);
|
|
|
736 arg = name->data + sizeof("arg_") - 1;
|
|
|
737
|
|
|
738 for (p = r->args.data; *p && *p != ' '; p++) {
|
|
|
739
|
|
|
740 /*
|
|
|
741 * although r->args.data is not null-terminated by itself,
|
|
|
742 * however, there is null in the end of request line
|
|
|
743 */
|
|
|
744
|
|
|
745 p = ngx_strcasestrn(p, (char *) arg, len);
|
|
|
746
|
|
|
747 if (p == NULL) {
|
|
|
748 v->not_found = 1;
|
|
|
749 return NGX_OK;
|
|
|
750 }
|
|
|
751
|
|
|
752 if ((p == r->args.data || *(p - 1) == '&') && *(p + len + 1) == '=') {
|
|
|
753
|
|
|
754 v->data = p + len + 2;
|
|
|
755
|
|
|
756 p = (u_char *) ngx_strchr(p, '&');
|
|
|
757
|
|
|
758 if (p == NULL) {
|
|
|
759 p = r->args.data + r->args.len;
|
|
|
760 }
|
|
|
761
|
|
|
762 v->len = p - v->data;
|
|
|
763 v->valid = 1;
|
|
|
764 v->no_cacheable = 0;
|
|
|
765 v->not_found = 0;
|
|
|
766
|
|
|
767 return NGX_OK;
|
|
|
768 }
|
|
|
769 }
|
|
|
770
|
|
|
771 v->not_found = 1;
|
|
|
772
|
|
|
773 return NGX_OK;
|
|
|
774 }
|
|
|
775
|
|
|
776
|
|
|
777 static ngx_int_t
|
|
122
|
778 ngx_http_variable_host(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
779 uintptr_t data)
|
|
58
|
780 {
|
|
362
|
781 ngx_http_core_srv_conf_t *cscf;
|
|
|
782
|
|
376
|
783 if (r->headers_in.server.len) {
|
|
|
784 v->len = r->headers_in.server.len;
|
|
|
785 v->data = r->headers_in.server.data;
|
|
270
|
786
|
|
|
787 } else {
|
|
376
|
788 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
789
|
|
|
790 v->len = cscf->server_name.len;
|
|
|
791 v->data = cscf->server_name.data;
|
|
58
|
792 }
|
|
|
793
|
|
122
|
794 v->valid = 1;
|
|
340
|
795 v->no_cacheable = 0;
|
|
122
|
796 v->not_found = 0;
|
|
58
|
797
|
|
122
|
798 return NGX_OK;
|
|
48
|
799 }
|
|
|
800
|
|
|
801
|
|
122
|
802 static ngx_int_t
|
|
272
|
803 ngx_http_variable_binary_remote_addr(ngx_http_request_t *r,
|
|
|
804 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
805 {
|
|
|
806 struct sockaddr_in *sin;
|
|
|
807
|
|
|
808 /* AF_INET only */
|
|
|
809
|
|
|
810 sin = (struct sockaddr_in *) r->connection->sockaddr;
|
|
|
811
|
|
|
812 v->len = sizeof(in_addr_t);
|
|
|
813 v->valid = 1;
|
|
340
|
814 v->no_cacheable = 0;
|
|
272
|
815 v->not_found = 0;
|
|
|
816 v->data = (u_char *) &sin->sin_addr.s_addr;
|
|
|
817
|
|
|
818 return NGX_OK;
|
|
|
819 }
|
|
|
820
|
|
|
821
|
|
|
822 static ngx_int_t
|
|
122
|
823 ngx_http_variable_remote_addr(ngx_http_request_t *r,
|
|
|
824 ngx_http_variable_value_t *v, uintptr_t data)
|
|
48
|
825 {
|
|
122
|
826 v->len = r->connection->addr_text.len;
|
|
|
827 v->valid = 1;
|
|
340
|
828 v->no_cacheable = 0;
|
|
122
|
829 v->not_found = 0;
|
|
|
830 v->data = r->connection->addr_text.data;
|
|
48
|
831
|
|
122
|
832 return NGX_OK;
|
|
48
|
833 }
|
|
|
834
|
|
|
835
|
|
122
|
836 static ngx_int_t
|
|
|
837 ngx_http_variable_remote_port(ngx_http_request_t *r,
|
|
|
838 ngx_http_variable_value_t *v, uintptr_t data)
|
|
48
|
839 {
|
|
122
|
840 ngx_uint_t port;
|
|
|
841 struct sockaddr_in *sin;
|
|
58
|
842
|
|
122
|
843 v->len = 0;
|
|
|
844 v->valid = 1;
|
|
340
|
845 v->no_cacheable = 0;
|
|
122
|
846 v->not_found = 0;
|
|
58
|
847
|
|
382
|
848 v->data = ngx_pnalloc(r->pool, sizeof("65535") - 1);
|
|
122
|
849 if (v->data == NULL) {
|
|
|
850 return NGX_ERROR;
|
|
58
|
851 }
|
|
|
852
|
|
|
853 /* AF_INET only */
|
|
126
|
854
|
|
58
|
855 if (r->connection->sockaddr->sa_family == AF_INET) {
|
|
|
856 sin = (struct sockaddr_in *) r->connection->sockaddr;
|
|
126
|
857
|
|
58
|
858 port = ntohs(sin->sin_port);
|
|
126
|
859
|
|
58
|
860 if (port > 0 && port < 65536) {
|
|
122
|
861 v->len = ngx_sprintf(v->data, "%ui", port) - v->data;
|
|
58
|
862 }
|
|
|
863 }
|
|
|
864
|
|
122
|
865 return NGX_OK;
|
|
58
|
866 }
|
|
|
867
|
|
|
868
|
|
122
|
869 static ngx_int_t
|
|
|
870 ngx_http_variable_server_addr(ngx_http_request_t *r,
|
|
|
871 ngx_http_variable_value_t *v, uintptr_t data)
|
|
58
|
872 {
|
|
362
|
873 ngx_str_t s;
|
|
48
|
874
|
|
382
|
875 s.data = ngx_pnalloc(r->pool, INET_ADDRSTRLEN);
|
|
362
|
876 if (s.data == NULL) {
|
|
122
|
877 return NGX_ERROR;
|
|
58
|
878 }
|
|
|
879
|
|
362
|
880 if (ngx_http_server_addr(r, &s) != NGX_OK) {
|
|
|
881 return NGX_ERROR;
|
|
58
|
882 }
|
|
|
883
|
|
362
|
884 v->len = s.len;
|
|
122
|
885 v->valid = 1;
|
|
340
|
886 v->no_cacheable = 0;
|
|
122
|
887 v->not_found = 0;
|
|
362
|
888 v->data = s.data;
|
|
48
|
889
|
|
122
|
890 return NGX_OK;
|
|
48
|
891 }
|
|
|
892
|
|
|
893
|
|
122
|
894 static ngx_int_t
|
|
|
895 ngx_http_variable_server_port(ngx_http_request_t *r,
|
|
|
896 ngx_http_variable_value_t *v, uintptr_t data)
|
|
58
|
897 {
|
|
122
|
898 v->len = r->port_text->len - 1;
|
|
|
899 v->valid = 1;
|
|
340
|
900 v->no_cacheable = 0;
|
|
122
|
901 v->not_found = 0;
|
|
|
902 v->data = r->port_text->data + 1;
|
|
58
|
903
|
|
122
|
904 return NGX_OK;
|
|
58
|
905 }
|
|
|
906
|
|
|
907
|
|
122
|
908 static ngx_int_t
|
|
238
|
909 ngx_http_variable_scheme(ngx_http_request_t *r,
|
|
|
910 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
911 {
|
|
|
912 #if (NGX_HTTP_SSL)
|
|
|
913
|
|
|
914 if (r->connection->ssl) {
|
|
|
915 v->len = sizeof("https") - 1;
|
|
|
916 v->valid = 1;
|
|
340
|
917 v->no_cacheable = 0;
|
|
238
|
918 v->not_found = 0;
|
|
|
919 v->data = (u_char *) "https";
|
|
|
920
|
|
|
921 return NGX_OK;
|
|
|
922 }
|
|
|
923
|
|
|
924 #endif
|
|
|
925
|
|
|
926 v->len = sizeof("http") - 1;
|
|
|
927 v->valid = 1;
|
|
340
|
928 v->no_cacheable = 0;
|
|
238
|
929 v->not_found = 0;
|
|
|
930 v->data = (u_char *) "http";
|
|
|
931
|
|
|
932 return NGX_OK;
|
|
|
933 }
|
|
|
934
|
|
|
935
|
|
|
936 static ngx_int_t
|
|
324
|
937 ngx_http_variable_is_args(ngx_http_request_t *r,
|
|
|
938 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
939 {
|
|
|
940 v->valid = 1;
|
|
340
|
941 v->no_cacheable = 0;
|
|
324
|
942 v->not_found = 0;
|
|
|
943
|
|
|
944 if (r->args.len == 0) {
|
|
|
945 v->len = 0;
|
|
|
946 v->data = NULL;
|
|
|
947 return NGX_OK;
|
|
|
948 }
|
|
|
949
|
|
|
950 v->len = 1;
|
|
|
951 v->data = (u_char *) "?";
|
|
|
952
|
|
|
953 return NGX_OK;
|
|
|
954 }
|
|
|
955
|
|
|
956
|
|
|
957 static ngx_int_t
|
|
122
|
958 ngx_http_variable_document_root(ngx_http_request_t *r,
|
|
|
959 ngx_http_variable_value_t *v, uintptr_t data)
|
|
48
|
960 {
|
|
220
|
961 ngx_str_t path;
|
|
122
|
962 ngx_http_core_loc_conf_t *clcf;
|
|
58
|
963
|
|
|
964 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
965
|
|
220
|
966 if (clcf->root_lengths == NULL) {
|
|
|
967 v->len = clcf->root.len;
|
|
|
968 v->valid = 1;
|
|
340
|
969 v->no_cacheable = 0;
|
|
220
|
970 v->not_found = 0;
|
|
|
971 v->data = clcf->root.data;
|
|
|
972
|
|
|
973 } else {
|
|
|
974 if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 0,
|
|
|
975 clcf->root_values->elts)
|
|
|
976 == NULL)
|
|
|
977 {
|
|
|
978 return NGX_ERROR;
|
|
|
979 }
|
|
|
980
|
|
324
|
981 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0)
|
|
|
982 == NGX_ERROR)
|
|
|
983 {
|
|
220
|
984 return NGX_ERROR;
|
|
|
985 }
|
|
|
986
|
|
|
987 v->len = path.len;
|
|
|
988 v->valid = 1;
|
|
340
|
989 v->no_cacheable = 0;
|
|
220
|
990 v->not_found = 0;
|
|
|
991 v->data = path.data;
|
|
|
992 }
|
|
58
|
993
|
|
122
|
994 return NGX_OK;
|
|
58
|
995 }
|
|
|
996
|
|
|
997
|
|
122
|
998 static ngx_int_t
|
|
|
999 ngx_http_variable_request_filename(ngx_http_request_t *r,
|
|
|
1000 ngx_http_variable_value_t *v, uintptr_t data)
|
|
58
|
1001 {
|
|
248
|
1002 size_t root;
|
|
122
|
1003 ngx_str_t path;
|
|
48
|
1004
|
|
248
|
1005 if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) {
|
|
122
|
1006 return NGX_ERROR;
|
|
106
|
1007 }
|
|
58
|
1008
|
|
106
|
1009 /* ngx_http_map_uri_to_path() allocates memory for terminating '\0' */
|
|
58
|
1010
|
|
122
|
1011 v->len = path.len - 1;
|
|
|
1012 v->valid = 1;
|
|
340
|
1013 v->no_cacheable = 0;
|
|
122
|
1014 v->not_found = 0;
|
|
|
1015 v->data = path.data;
|
|
48
|
1016
|
|
122
|
1017 return NGX_OK;
|
|
48
|
1018 }
|
|
|
1019
|
|
|
1020
|
|
122
|
1021 static ngx_int_t
|
|
362
|
1022 ngx_http_variable_server_name(ngx_http_request_t *r,
|
|
|
1023 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1024 {
|
|
|
1025 ngx_http_core_srv_conf_t *cscf;
|
|
|
1026
|
|
|
1027 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1028
|
|
|
1029 v->len = cscf->server_name.len;
|
|
|
1030 v->valid = 1;
|
|
|
1031 v->no_cacheable = 0;
|
|
|
1032 v->not_found = 0;
|
|
|
1033 v->data = cscf->server_name.data;
|
|
|
1034
|
|
|
1035 return NGX_OK;
|
|
|
1036 }
|
|
|
1037
|
|
|
1038
|
|
|
1039 static ngx_int_t
|
|
122
|
1040 ngx_http_variable_request_method(ngx_http_request_t *r,
|
|
|
1041 ngx_http_variable_value_t *v, uintptr_t data)
|
|
110
|
1042 {
|
|
196
|
1043 if (r->main->method_name.data) {
|
|
|
1044 v->len = r->main->method_name.len;
|
|
122
|
1045 v->valid = 1;
|
|
340
|
1046 v->no_cacheable = 0;
|
|
122
|
1047 v->not_found = 0;
|
|
196
|
1048 v->data = r->main->method_name.data;
|
|
122
|
1049
|
|
|
1050 } else {
|
|
|
1051 v->not_found = 1;
|
|
110
|
1052 }
|
|
|
1053
|
|
122
|
1054 return NGX_OK;
|
|
110
|
1055 }
|
|
|
1056
|
|
|
1057
|
|
122
|
1058 static ngx_int_t
|
|
|
1059 ngx_http_variable_remote_user(ngx_http_request_t *r,
|
|
|
1060 ngx_http_variable_value_t *v, uintptr_t data)
|
|
88
|
1061 {
|
|
122
|
1062 ngx_int_t rc;
|
|
88
|
1063
|
|
|
1064 rc = ngx_http_auth_basic_user(r);
|
|
|
1065
|
|
|
1066 if (rc == NGX_DECLINED) {
|
|
122
|
1067 v->not_found = 1;
|
|
|
1068 return NGX_OK;
|
|
88
|
1069 }
|
|
|
1070
|
|
|
1071 if (rc == NGX_ERROR) {
|
|
122
|
1072 return NGX_ERROR;
|
|
88
|
1073 }
|
|
|
1074
|
|
122
|
1075 v->len = r->headers_in.user.len;
|
|
|
1076 v->valid = 1;
|
|
340
|
1077 v->no_cacheable = 0;
|
|
122
|
1078 v->not_found = 0;
|
|
|
1079 v->data = r->headers_in.user.data;
|
|
120
|
1080
|
|
122
|
1081 return NGX_OK;
|
|
120
|
1082 }
|
|
|
1083
|
|
|
1084
|
|
160
|
1085 static ngx_int_t
|
|
|
1086 ngx_http_variable_body_bytes_sent(ngx_http_request_t *r,
|
|
|
1087 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1088 {
|
|
|
1089 off_t sent;
|
|
|
1090 u_char *p;
|
|
|
1091
|
|
|
1092 sent = r->connection->sent - r->header_size;
|
|
|
1093
|
|
|
1094 if (sent < 0) {
|
|
|
1095 sent = 0;
|
|
|
1096 }
|
|
|
1097
|
|
382
|
1098 p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN);
|
|
160
|
1099 if (p == NULL) {
|
|
|
1100 return NGX_ERROR;
|
|
|
1101 }
|
|
|
1102
|
|
|
1103 v->len = ngx_sprintf(p, "%O", sent) - p;
|
|
|
1104 v->valid = 1;
|
|
340
|
1105 v->no_cacheable = 0;
|
|
160
|
1106 v->not_found = 0;
|
|
|
1107 v->data = p;
|
|
|
1108
|
|
|
1109 return NGX_OK;
|
|
|
1110 }
|
|
|
1111
|
|
|
1112
|
|
178
|
1113 static ngx_int_t
|
|
190
|
1114 ngx_http_variable_sent_content_type(ngx_http_request_t *r,
|
|
|
1115 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1116 {
|
|
|
1117 if (r->headers_out.content_type.len) {
|
|
|
1118 v->len = r->headers_out.content_type.len;
|
|
|
1119 v->valid = 1;
|
|
340
|
1120 v->no_cacheable = 0;
|
|
190
|
1121 v->not_found = 0;
|
|
|
1122 v->data = r->headers_out.content_type.data;
|
|
|
1123
|
|
|
1124 } else {
|
|
|
1125 v->not_found = 1;
|
|
|
1126 }
|
|
|
1127
|
|
|
1128 return NGX_OK;
|
|
|
1129 }
|
|
|
1130
|
|
|
1131
|
|
|
1132 static ngx_int_t
|
|
|
1133 ngx_http_variable_sent_content_length(ngx_http_request_t *r,
|
|
|
1134 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1135 {
|
|
|
1136 u_char *p;
|
|
|
1137
|
|
|
1138 if (r->headers_out.content_length) {
|
|
|
1139 v->len = r->headers_out.content_length->value.len;
|
|
|
1140 v->valid = 1;
|
|
340
|
1141 v->no_cacheable = 0;
|
|
190
|
1142 v->not_found = 0;
|
|
|
1143 v->data = r->headers_out.content_length->value.data;
|
|
|
1144
|
|
|
1145 return NGX_OK;
|
|
|
1146 }
|
|
|
1147
|
|
|
1148 if (r->headers_out.content_length_n >= 0) {
|
|
382
|
1149 p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN);
|
|
190
|
1150 if (p == NULL) {
|
|
|
1151 return NGX_ERROR;
|
|
|
1152 }
|
|
|
1153
|
|
|
1154 v->len = ngx_sprintf(p, "%O", r->headers_out.content_length_n) - p;
|
|
|
1155 v->valid = 1;
|
|
340
|
1156 v->no_cacheable = 0;
|
|
190
|
1157 v->not_found = 0;
|
|
|
1158 v->data = p;
|
|
|
1159
|
|
|
1160 return NGX_OK;
|
|
|
1161 }
|
|
|
1162
|
|
|
1163 v->not_found = 1;
|
|
|
1164
|
|
|
1165 return NGX_OK;
|
|
|
1166 }
|
|
|
1167
|
|
|
1168
|
|
|
1169 static ngx_int_t
|
|
|
1170 ngx_http_variable_sent_last_modified(ngx_http_request_t *r,
|
|
|
1171 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1172 {
|
|
|
1173 u_char *p;
|
|
|
1174
|
|
|
1175 if (r->headers_out.last_modified) {
|
|
|
1176 v->len = r->headers_out.last_modified->value.len;
|
|
|
1177 v->valid = 1;
|
|
340
|
1178 v->no_cacheable = 0;
|
|
190
|
1179 v->not_found = 0;
|
|
|
1180 v->data = r->headers_out.last_modified->value.data;
|
|
|
1181
|
|
|
1182 return NGX_OK;
|
|
|
1183 }
|
|
|
1184
|
|
|
1185 if (r->headers_out.last_modified_time >= 0) {
|
|
382
|
1186 p = ngx_pnalloc(r->pool,
|
|
190
|
1187 sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT") - 1);
|
|
|
1188 if (p == NULL) {
|
|
|
1189 return NGX_ERROR;
|
|
|
1190 }
|
|
|
1191
|
|
|
1192 v->len = ngx_http_time(p, r->headers_out.last_modified_time) - p;
|
|
|
1193 v->valid = 1;
|
|
340
|
1194 v->no_cacheable = 0;
|
|
190
|
1195 v->not_found = 0;
|
|
|
1196 v->data = p;
|
|
|
1197
|
|
|
1198 return NGX_OK;
|
|
|
1199 }
|
|
|
1200
|
|
|
1201 v->not_found = 1;
|
|
|
1202
|
|
|
1203 return NGX_OK;
|
|
|
1204 }
|
|
|
1205
|
|
|
1206
|
|
|
1207 static ngx_int_t
|
|
|
1208 ngx_http_variable_sent_connection(ngx_http_request_t *r,
|
|
|
1209 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1210 {
|
|
|
1211 size_t len;
|
|
|
1212 char *p;
|
|
|
1213
|
|
|
1214 if (r->keepalive) {
|
|
|
1215 len = sizeof("keep-alive") - 1;
|
|
|
1216 p = "keep-alive";
|
|
|
1217
|
|
|
1218 } else {
|
|
|
1219 len = sizeof("close") - 1;
|
|
|
1220 p = "close";
|
|
|
1221 }
|
|
|
1222
|
|
|
1223 v->len = len;
|
|
|
1224 v->valid = 1;
|
|
340
|
1225 v->no_cacheable = 0;
|
|
190
|
1226 v->not_found = 0;
|
|
|
1227 v->data = (u_char *) p;
|
|
|
1228
|
|
|
1229 return NGX_OK;
|
|
|
1230 }
|
|
|
1231
|
|
|
1232
|
|
|
1233 static ngx_int_t
|
|
|
1234 ngx_http_variable_sent_keep_alive(ngx_http_request_t *r,
|
|
|
1235 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1236 {
|
|
|
1237 u_char *p;
|
|
|
1238 ngx_http_core_loc_conf_t *clcf;
|
|
|
1239
|
|
|
1240 if (r->keepalive) {
|
|
|
1241 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1242
|
|
|
1243 if (clcf->keepalive_header) {
|
|
|
1244
|
|
382
|
1245 p = ngx_pnalloc(r->pool, sizeof("timeout=") - 1 + NGX_TIME_T_LEN);
|
|
190
|
1246 if (p == NULL) {
|
|
|
1247 return NGX_ERROR;
|
|
|
1248 }
|
|
|
1249
|
|
|
1250 v->len = ngx_sprintf(p, "timeout=%T", clcf->keepalive_header) - p;
|
|
|
1251 v->valid = 1;
|
|
340
|
1252 v->no_cacheable = 0;
|
|
190
|
1253 v->not_found = 0;
|
|
|
1254 v->data = p;
|
|
|
1255
|
|
|
1256 return NGX_OK;
|
|
|
1257 }
|
|
|
1258 }
|
|
|
1259
|
|
|
1260 v->not_found = 1;
|
|
|
1261
|
|
|
1262 return NGX_OK;
|
|
|
1263 }
|
|
|
1264
|
|
|
1265
|
|
|
1266 static ngx_int_t
|
|
|
1267 ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r,
|
|
|
1268 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1269 {
|
|
|
1270 if (r->chunked) {
|
|
|
1271 v->len = sizeof("chunked") - 1;
|
|
|
1272 v->valid = 1;
|
|
340
|
1273 v->no_cacheable = 0;
|
|
190
|
1274 v->not_found = 0;
|
|
|
1275 v->data = (u_char *) "chunked";
|
|
|
1276
|
|
|
1277 } else {
|
|
|
1278 v->not_found = 1;
|
|
|
1279 }
|
|
|
1280
|
|
|
1281 return NGX_OK;
|
|
|
1282 }
|
|
|
1283
|
|
|
1284
|
|
|
1285 static ngx_int_t
|
|
178
|
1286 ngx_http_variable_request_completion(ngx_http_request_t *r,
|
|
|
1287 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1288 {
|
|
|
1289 if (r->request_complete) {
|
|
|
1290 v->len = 2;
|
|
|
1291 v->valid = 1;
|
|
340
|
1292 v->no_cacheable = 0;
|
|
178
|
1293 v->not_found = 0;
|
|
|
1294 v->data = (u_char *) "OK";
|
|
|
1295
|
|
|
1296 return NGX_OK;
|
|
|
1297 }
|
|
|
1298
|
|
|
1299 v->len = 0;
|
|
|
1300 v->valid = 1;
|
|
340
|
1301 v->no_cacheable = 0;
|
|
178
|
1302 v->not_found = 0;
|
|
|
1303 v->data = (u_char *) "";
|
|
|
1304
|
|
|
1305 return NGX_OK;
|
|
|
1306 }
|
|
|
1307
|
|
|
1308
|
|
244
|
1309 static ngx_int_t
|
|
|
1310 ngx_http_variable_request_body_file(ngx_http_request_t *r,
|
|
|
1311 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1312 {
|
|
|
1313 if (r->request_body == NULL || r->request_body->temp_file == NULL) {
|
|
246
|
1314 v->not_found = 1;
|
|
244
|
1315
|
|
|
1316 return NGX_OK;
|
|
|
1317 }
|
|
|
1318
|
|
|
1319 v->len = r->request_body->temp_file->file.name.len;
|
|
|
1320 v->valid = 1;
|
|
340
|
1321 v->no_cacheable = 0;
|
|
244
|
1322 v->not_found = 0;
|
|
|
1323 v->data = r->request_body->temp_file->file.name.data;
|
|
|
1324
|
|
|
1325 return NGX_OK;
|
|
|
1326 }
|
|
|
1327
|
|
|
1328
|
|
322
|
1329 static ngx_int_t
|
|
|
1330 ngx_http_variable_nginx_version(ngx_http_request_t *r,
|
|
|
1331 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1332 {
|
|
|
1333 v->len = sizeof(NGINX_VERSION) - 1;
|
|
|
1334 v->valid = 1;
|
|
340
|
1335 v->no_cacheable = 0;
|
|
322
|
1336 v->not_found = 0;
|
|
|
1337 v->data = (u_char *) NGINX_VERSION;
|
|
|
1338
|
|
|
1339 return NGX_OK;
|
|
|
1340 }
|
|
|
1341
|
|
|
1342
|
|
376
|
1343 static ngx_int_t
|
|
|
1344 ngx_http_variable_hostname(ngx_http_request_t *r,
|
|
|
1345 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1346 {
|
|
|
1347 v->len = ngx_cycle->hostname.len;
|
|
|
1348 v->valid = 1;
|
|
|
1349 v->no_cacheable = 0;
|
|
|
1350 v->not_found = 0;
|
|
|
1351 v->data = ngx_cycle->hostname.data;
|
|
|
1352
|
|
|
1353 return NGX_OK;
|
|
|
1354 }
|
|
|
1355
|
|
|
1356
|
|
48
|
1357 ngx_int_t
|
|
58
|
1358 ngx_http_variables_add_core_vars(ngx_conf_t *cf)
|
|
48
|
1359 {
|
|
160
|
1360 ngx_int_t rc;
|
|
|
1361 ngx_http_variable_t *v;
|
|
50
|
1362 ngx_http_core_main_conf_t *cmcf;
|
|
48
|
1363
|
|
58
|
1364 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
|
1365
|
|
160
|
1366 cmcf->variables_keys = ngx_pcalloc(cf->temp_pool,
|
|
|
1367 sizeof(ngx_hash_keys_arrays_t));
|
|
|
1368 if (cmcf->variables_keys == NULL) {
|
|
|
1369 return NGX_ERROR;
|
|
|
1370 }
|
|
|
1371
|
|
|
1372 cmcf->variables_keys->pool = cf->pool;
|
|
|
1373 cmcf->variables_keys->temp_pool = cf->pool;
|
|
|
1374
|
|
|
1375 if (ngx_hash_keys_array_init(cmcf->variables_keys, NGX_HASH_SMALL)
|
|
|
1376 != NGX_OK)
|
|
58
|
1377 {
|
|
48
|
1378 return NGX_ERROR;
|
|
|
1379 }
|
|
|
1380
|
|
160
|
1381 for (v = ngx_http_core_variables; v->name.len; v++) {
|
|
|
1382 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v,
|
|
|
1383 NGX_HASH_READONLY_KEY);
|
|
|
1384
|
|
|
1385 if (rc == NGX_OK) {
|
|
|
1386 continue;
|
|
48
|
1387 }
|
|
|
1388
|
|
160
|
1389 if (rc == NGX_BUSY) {
|
|
|
1390 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1391 "conflicting variable name \"%V\"", &v->name);
|
|
|
1392 }
|
|
|
1393
|
|
|
1394 return NGX_ERROR;
|
|
48
|
1395 }
|
|
|
1396
|
|
|
1397 return NGX_OK;
|
|
|
1398 }
|
|
58
|
1399
|
|
|
1400
|
|
|
1401 ngx_int_t
|
|
|
1402 ngx_http_variables_init_vars(ngx_conf_t *cf)
|
|
|
1403 {
|
|
|
1404 ngx_uint_t i, n;
|
|
160
|
1405 ngx_hash_key_t *key;
|
|
|
1406 ngx_hash_init_t hash;
|
|
58
|
1407 ngx_http_variable_t *v, *av;
|
|
|
1408 ngx_http_core_main_conf_t *cmcf;
|
|
|
1409
|
|
|
1410 /* set the handlers for the indexed http variables */
|
|
|
1411
|
|
|
1412 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
|
1413
|
|
|
1414 v = cmcf->variables.elts;
|
|
160
|
1415 key = cmcf->variables_keys->keys.elts;
|
|
58
|
1416
|
|
|
1417 for (i = 0; i < cmcf->variables.nelts; i++) {
|
|
|
1418
|
|
160
|
1419 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) {
|
|
58
|
1420
|
|
300
|
1421 av = key[n].value;
|
|
|
1422
|
|
|
1423 if (av->get_handler
|
|
|
1424 && v[i].name.len == key[n].key.len
|
|
160
|
1425 && ngx_strncmp(v[i].name.data, key[n].key.data, v[i].name.len)
|
|
58
|
1426 == 0)
|
|
|
1427 {
|
|
186
|
1428 v[i].get_handler = av->get_handler;
|
|
160
|
1429 v[i].data = av->data;
|
|
76
|
1430
|
|
160
|
1431 av->flags |= NGX_HTTP_VAR_INDEXED;
|
|
|
1432 v[i].flags = av->flags;
|
|
58
|
1433
|
|
160
|
1434 av->index = i;
|
|
82
|
1435
|
|
58
|
1436 goto next;
|
|
|
1437 }
|
|
|
1438 }
|
|
|
1439
|
|
|
1440 if (ngx_strncmp(v[i].name.data, "http_", 5) == 0) {
|
|
186
|
1441 v[i].get_handler = ngx_http_variable_unknown_header_in;
|
|
126
|
1442 v[i].data = (uintptr_t) &v[i].name;
|
|
|
1443
|
|
|
1444 continue;
|
|
|
1445 }
|
|
|
1446
|
|
|
1447 if (ngx_strncmp(v[i].name.data, "sent_http_", 10) == 0) {
|
|
186
|
1448 v[i].get_handler = ngx_http_variable_unknown_header_out;
|
|
58
|
1449 v[i].data = (uintptr_t) &v[i].name;
|
|
|
1450
|
|
|
1451 continue;
|
|
|
1452 }
|
|
|
1453
|
|
296
|
1454 if (ngx_strncmp(v[i].name.data, "upstream_http_", 14) == 0) {
|
|
|
1455 v[i].get_handler = ngx_http_upstream_header_variable;
|
|
|
1456 v[i].data = (uintptr_t) &v[i].name;
|
|
340
|
1457 v[i].flags = NGX_HTTP_VAR_NOCACHEABLE;
|
|
296
|
1458
|
|
|
1459 continue;
|
|
|
1460 }
|
|
|
1461
|
|
392
|
1462 if (ngx_strncmp(v[i].name.data, "arg_", 4) == 0) {
|
|
|
1463 v[i].get_handler = ngx_http_variable_argument;
|
|
|
1464 v[i].data = (uintptr_t) &v[i].name;
|
|
|
1465
|
|
|
1466 continue;
|
|
|
1467 }
|
|
|
1468
|
|
58
|
1469 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
|
|
1470 "unknown \"%V\" variable", &v[i].name);
|
|
|
1471
|
|
|
1472 return NGX_ERROR;
|
|
|
1473
|
|
|
1474 next:
|
|
|
1475 continue;
|
|
|
1476 }
|
|
|
1477
|
|
|
1478
|
|
160
|
1479 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) {
|
|
|
1480 av = key[n].value;
|
|
|
1481
|
|
|
1482 if (av->flags & NGX_HTTP_VAR_NOHASH) {
|
|
|
1483 key[n].key.data = NULL;
|
|
132
|
1484 }
|
|
|
1485 }
|
|
|
1486
|
|
|
1487
|
|
160
|
1488 hash.hash = &cmcf->variables_hash;
|
|
|
1489 hash.key = ngx_hash_key;
|
|
|
1490 hash.max_size = cmcf->variables_hash_max_size;
|
|
|
1491 hash.bucket_size = cmcf->variables_hash_bucket_size;
|
|
|
1492 hash.name = "variables_hash";
|
|
|
1493 hash.pool = cf->pool;
|
|
|
1494 hash.temp_pool = NULL;
|
|
58
|
1495
|
|
160
|
1496 if (ngx_hash_init(&hash, cmcf->variables_keys->keys.elts,
|
|
|
1497 cmcf->variables_keys->keys.nelts)
|
|
130
|
1498 != NGX_OK)
|
|
58
|
1499 {
|
|
|
1500 return NGX_ERROR;
|
|
|
1501 }
|
|
|
1502
|
|
160
|
1503 cmcf->variables_keys = NULL;
|
|
58
|
1504
|
|
|
1505 return NGX_OK;
|
|
|
1506 }
|
