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>
|
|
11
|
|
12
|
58
|
13 static ngx_http_variable_value_t *
|
|
14 ngx_http_variable_request(ngx_http_request_t *r, uintptr_t data);
|
48
|
15 static ngx_http_variable_value_t *
|
|
16 ngx_http_variable_header(ngx_http_request_t *r, uintptr_t data);
|
|
17 static ngx_http_variable_value_t *
|
64
|
18 ngx_http_variable_headers(ngx_http_request_t *r, uintptr_t data);
|
|
19 static ngx_http_variable_value_t *
|
50
|
20 ngx_http_variable_unknown_header(ngx_http_request_t *r, uintptr_t data);
|
48
|
21 static ngx_http_variable_value_t *
|
58
|
22 ngx_http_variable_host(ngx_http_request_t *r, uintptr_t data);
|
|
23 static ngx_http_variable_value_t *
|
48
|
24 ngx_http_variable_remote_addr(ngx_http_request_t *r, uintptr_t data);
|
|
25 static ngx_http_variable_value_t *
|
58
|
26 ngx_http_variable_remote_port(ngx_http_request_t *r, uintptr_t data);
|
|
27 static ngx_http_variable_value_t *
|
|
28 ngx_http_variable_server_addr(ngx_http_request_t *r, uintptr_t data);
|
48
|
29 static ngx_http_variable_value_t *
|
58
|
30 ngx_http_variable_server_port(ngx_http_request_t *r, uintptr_t data);
|
|
31 static ngx_http_variable_value_t *
|
|
32 ngx_http_variable_document_root(ngx_http_request_t *r, uintptr_t data);
|
|
33 static ngx_http_variable_value_t *
|
|
34 ngx_http_variable_request_filename(ngx_http_request_t *r, uintptr_t data);
|
88
|
35 static ngx_http_variable_value_t *
|
110
|
36 ngx_http_variable_request_method(ngx_http_request_t *r, uintptr_t data);
|
|
37 static ngx_http_variable_value_t *
|
88
|
38 ngx_http_variable_remote_user(ngx_http_request_t *r, uintptr_t data);
|
48
|
39
|
|
40
|
58
|
41 /*
|
|
42 * TODO:
|
|
43 * Apache CGI: AUTH_TYPE, PATH_INFO (null), PATH_TRANSLATED
|
|
44 * REMOTE_HOST (null), REMOTE_IDENT (null),
|
|
45 * SERVER_SOFTWARE
|
|
46 *
|
|
47 * Apache SSI: DATE_GMT, DOCUMENT_NAME, LAST_MODIFIED,
|
|
48 * USER_NAME (file owner)
|
|
49 */
|
48
|
50
|
58
|
51 static ngx_http_variable_t ngx_http_core_variables[] = {
|
|
52
|
|
53 { ngx_string("http_host"), ngx_http_variable_header,
|
82
|
54 offsetof(ngx_http_request_t, headers_in.host), 0, 0 },
|
48
|
55
|
58
|
56 { ngx_string("http_user_agent"), ngx_http_variable_header,
|
82
|
57 offsetof(ngx_http_request_t, headers_in.user_agent), 0, 0 },
|
58
|
58
|
|
59 { ngx_string("http_referer"), ngx_http_variable_header,
|
82
|
60 offsetof(ngx_http_request_t, headers_in.referer), 0, 0 },
|
48
|
61
|
|
62 #if (NGX_HTTP_GZIP)
|
58
|
63 { ngx_string("http_via"), ngx_http_variable_header,
|
82
|
64 offsetof(ngx_http_request_t, headers_in.via), 0, 0 },
|
48
|
65 #endif
|
|
66
|
|
67 #if (NGX_HTTP_PROXY)
|
58
|
68 { ngx_string("http_x_forwarded_for"), ngx_http_variable_header,
|
82
|
69 offsetof(ngx_http_request_t, headers_in.x_forwarded_for), 0, 0 },
|
48
|
70 #endif
|
|
71
|
64
|
72 { ngx_string("http_cookie"), ngx_http_variable_headers,
|
82
|
73 offsetof(ngx_http_request_t, headers_in.cookies), 0, 0 },
|
64
|
74
|
58
|
75 { ngx_string("content_length"), ngx_http_variable_header,
|
82
|
76 offsetof(ngx_http_request_t, headers_in.content_length), 0, 0 },
|
58
|
77
|
|
78 { ngx_string("content_type"), ngx_http_variable_header,
|
82
|
79 offsetof(ngx_http_request_t, headers_in.content_type), 0, 0 },
|
58
|
80
|
82
|
81 { ngx_string("host"), ngx_http_variable_host, 0, 0, 0 },
|
58
|
82
|
82
|
83 { ngx_string("remote_addr"), ngx_http_variable_remote_addr, 0, 0, 0 },
|
48
|
84
|
82
|
85 { ngx_string("remote_port"), ngx_http_variable_remote_port, 0, 0, 0 },
|
58
|
86
|
82
|
87 { ngx_string("server_addr"), ngx_http_variable_server_addr, 0, 0, 0 },
|
58
|
88
|
82
|
89 { ngx_string("server_port"), ngx_http_variable_server_port, 0, 0, 0 },
|
58
|
90
|
|
91 { ngx_string("server_protocol"), ngx_http_variable_request,
|
82
|
92 offsetof(ngx_http_request_t, http_protocol), 0, 0 },
|
58
|
93
|
|
94 { ngx_string("request_uri"), ngx_http_variable_request,
|
82
|
95 offsetof(ngx_http_request_t, unparsed_uri), 0, 0 },
|
48
|
96
|
58
|
97 { ngx_string("document_uri"), ngx_http_variable_request,
|
82
|
98 offsetof(ngx_http_request_t, uri), 0, 0 },
|
58
|
99
|
118
|
100 { ngx_string("request"), ngx_http_variable_request,
|
|
101 offsetof(ngx_http_request_t, request_line), 0, 0 },
|
|
102
|
82
|
103 { ngx_string("document_root"), ngx_http_variable_document_root, 0, 0, 0 },
|
58
|
104
|
|
105 { ngx_string("query_string"), ngx_http_variable_request,
|
|
106 offsetof(ngx_http_request_t, args),
|
82
|
107 NGX_HTTP_VAR_NOCACHABLE, 0 },
|
48
|
108
|
58
|
109 { ngx_string("request_filename"), ngx_http_variable_request_filename, 0,
|
82
|
110 NGX_HTTP_VAR_NOCACHABLE, 0 },
|
58
|
111
|
|
112 { ngx_string("server_name"), ngx_http_variable_request,
|
82
|
113 offsetof(ngx_http_request_t, server_name), 0, 0 },
|
58
|
114
|
110
|
115 { ngx_string("request_method"), ngx_http_variable_request_method, 0, 0, 0 },
|
58
|
116
|
88
|
117 { ngx_string("remote_user"), ngx_http_variable_remote_user, 0, 0, 0 },
|
58
|
118
|
82
|
119 { ngx_null_string, NULL, 0, 0, 0 }
|
48
|
120 };
|
|
121
|
|
122
|
|
123 ngx_http_variable_t *
|
58
|
124 ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags)
|
|
125 {
|
|
126 ngx_uint_t i;
|
|
127 ngx_http_variable_t *v;
|
|
128 ngx_http_core_main_conf_t *cmcf;
|
|
129
|
|
130 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
131
|
|
132 v = cmcf->all_variables.elts;
|
|
133 for (i = 0; i < cmcf->all_variables.nelts; i++) {
|
|
134 if (name->len != v[i].name.len
|
|
135 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0)
|
|
136 {
|
|
137 continue;
|
|
138 }
|
|
139
|
|
140 if (!(v[i].flags & NGX_HTTP_VAR_CHANGABLE)) {
|
|
141 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
142 "the duplicate \"%V\" variable", name);
|
|
143 return NULL;
|
|
144 }
|
|
145
|
|
146 return &v[i];
|
|
147 }
|
|
148
|
|
149 v = ngx_array_push(&cmcf->all_variables);
|
|
150 if (v == NULL) {
|
|
151 return NULL;
|
|
152 }
|
|
153
|
|
154 v->name.len = name->len;
|
|
155 v->name.data = ngx_palloc(cf->pool, name->len);
|
|
156 if (v->name.data == NULL) {
|
|
157 return NULL;
|
|
158 }
|
|
159
|
|
160 for (i = 0; i < name->len; i++) {
|
|
161 v->name.data[i] = ngx_tolower(name->data[i]);
|
|
162 }
|
|
163
|
|
164 v->handler = NULL;
|
|
165 v->data = 0;
|
|
166 v->flags = flags;
|
82
|
167 v->index = 0;
|
58
|
168
|
|
169 return v;
|
|
170 }
|
|
171
|
|
172
|
|
173 ngx_int_t
|
|
174 ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name)
|
48
|
175 {
|
50
|
176 ngx_uint_t i;
|
|
177 ngx_http_variable_t *v;
|
48
|
178 ngx_http_core_main_conf_t *cmcf;
|
|
179
|
|
180 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
181
|
50
|
182 v = cmcf->variables.elts;
|
|
183
|
|
184 if (v == NULL) {
|
48
|
185 if (ngx_array_init(&cmcf->variables, cf->pool, 4,
|
|
186 sizeof(ngx_http_variable_t)) == NGX_ERROR)
|
|
187 {
|
58
|
188 return NGX_ERROR;
|
48
|
189 }
|
50
|
190
|
|
191 } else {
|
|
192 for (i = 0; i < cmcf->variables.nelts; i++) {
|
|
193 if (name->len != v[i].name.len
|
|
194 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0)
|
|
195 {
|
|
196 continue;
|
|
197 }
|
|
198
|
58
|
199 return i;
|
50
|
200 }
|
48
|
201 }
|
|
202
|
50
|
203 v = ngx_array_push(&cmcf->variables);
|
|
204 if (v == NULL) {
|
58
|
205 return NGX_ERROR;
|
48
|
206 }
|
|
207
|
50
|
208 v->name.len = name->len;
|
|
209 v->name.data = ngx_palloc(cf->pool, name->len);
|
|
210 if (v->name.data == NULL) {
|
58
|
211 return NGX_ERROR;
|
50
|
212 }
|
48
|
213
|
50
|
214 for (i = 0; i < name->len; i++) {
|
58
|
215 v->name.data[i] = ngx_tolower(name->data[i]);
|
50
|
216 }
|
|
217
|
|
218 v->handler = NULL;
|
|
219 v->data = 0;
|
58
|
220 v->flags = 0;
|
82
|
221 v->index = cmcf->variables.nelts - 1;
|
50
|
222
|
58
|
223 return cmcf->variables.nelts - 1;
|
48
|
224 }
|
|
225
|
|
226
|
|
227 ngx_http_variable_value_t *
|
|
228 ngx_http_get_indexed_variable(ngx_http_request_t *r, ngx_uint_t index)
|
|
229 {
|
50
|
230 ngx_http_variable_t *v;
|
|
231 ngx_http_variable_value_t *vv;
|
48
|
232 ngx_http_core_main_conf_t *cmcf;
|
|
233
|
|
234 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
235
|
102
|
236 if (cmcf->variables.nelts <= index) {
|
48
|
237 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
238 "unknown variable index: %d", index);
|
|
239 return NULL;
|
|
240 }
|
|
241
|
50
|
242 if (r->variables && r->variables[index]) {
|
|
243 return r->variables[index];
|
|
244 }
|
48
|
245
|
50
|
246 v = cmcf->variables.elts;
|
48
|
247
|
50
|
248 vv = v[index].handler(r, v[index].data);
|
48
|
249
|
50
|
250 if (r->variables == NULL) {
|
|
251 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
252 * sizeof(ngx_http_variable_value_t *));
|
|
253 if (r->variables == NULL) {
|
|
254 return NULL;
|
48
|
255 }
|
|
256 }
|
|
257
|
58
|
258 if (!(v[index].flags & NGX_HTTP_VAR_NOCACHABLE)) {
|
|
259 r->variables[index] = vv;
|
|
260 }
|
50
|
261
|
|
262 return vv;
|
48
|
263 }
|
|
264
|
|
265
|
|
266 ngx_http_variable_value_t *
|
|
267 ngx_http_get_variable(ngx_http_request_t *r, ngx_str_t *name)
|
|
268 {
|
|
269 ngx_uint_t i, key;
|
50
|
270 ngx_http_variable_t *v;
|
48
|
271 ngx_http_core_main_conf_t *cmcf;
|
|
272
|
|
273 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
274
|
58
|
275 key = 0;
|
|
276 for (i = 0; i < name->len; i++) {
|
|
277 key += name->data[i];
|
48
|
278 }
|
|
279
|
58
|
280 key %= cmcf->variables_hash.hash_size;
|
|
281 v = (ngx_http_variable_t *) cmcf->variables_hash.buckets;
|
48
|
282
|
58
|
283 if (v[key].name.len == name->len
|
|
284 && ngx_strncmp(v[key].name.data, name->data, name->len) == 0)
|
|
285 {
|
68
|
286 if (v[key].flags & NGX_HTTP_VAR_INDEXED) {
|
82
|
287 return ngx_http_get_indexed_variable(r, v[key].index);
|
68
|
288
|
|
289 } else {
|
|
290 return v[key].handler(r, v[key].data);
|
|
291 }
|
48
|
292 }
|
|
293
|
58
|
294 if (ngx_strncmp(name->data, "http_", 5) == 0) {
|
50
|
295 return ngx_http_variable_unknown_header(r, (uintptr_t) name);
|
48
|
296 }
|
|
297
|
50
|
298 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
299 "unknown \"%V\" variable", name);
|
|
300
|
58
|
301 return NGX_HTTP_VAR_NOT_FOUND;
|
|
302 }
|
|
303
|
|
304
|
|
305 static ngx_http_variable_value_t *
|
|
306 ngx_http_variable_request(ngx_http_request_t *r, uintptr_t data)
|
|
307 {
|
|
308 ngx_str_t *s;
|
|
309 ngx_http_variable_value_t *vv;
|
|
310
|
|
311 s = (ngx_str_t *) ((char *) r + data);
|
|
312
|
|
313 if (s->data == NULL) {
|
|
314 return NGX_HTTP_VAR_NOT_FOUND;
|
|
315 }
|
|
316
|
|
317 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
318 if (vv == NULL) {
|
|
319 return NULL;
|
|
320 }
|
|
321
|
|
322 vv->value = 0;
|
|
323 vv->text = *s;
|
|
324
|
|
325 return vv;
|
48
|
326 }
|
|
327
|
|
328
|
|
329 static ngx_http_variable_value_t *
|
|
330 ngx_http_variable_header(ngx_http_request_t *r, uintptr_t data)
|
|
331 {
|
|
332 ngx_table_elt_t *h;
|
50
|
333 ngx_http_variable_value_t *vv;
|
48
|
334
|
58
|
335 h = *(ngx_table_elt_t **) ((char *) r + data);
|
48
|
336
|
|
337 if (h == NULL) {
|
58
|
338 return NGX_HTTP_VAR_NOT_FOUND;
|
48
|
339 }
|
|
340
|
50
|
341 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
342 if (vv == NULL) {
|
48
|
343 return NULL;
|
|
344 }
|
|
345
|
50
|
346 vv->value = 0;
|
|
347 vv->text = h->value;
|
48
|
348
|
50
|
349 return vv;
|
48
|
350 }
|
|
351
|
|
352
|
|
353 static ngx_http_variable_value_t *
|
64
|
354 ngx_http_variable_headers(ngx_http_request_t *r, uintptr_t data)
|
|
355 {
|
|
356 u_char *p;
|
|
357 ngx_uint_t i;
|
|
358 ngx_array_t *a;
|
|
359 ngx_table_elt_t **h;
|
|
360 ngx_http_variable_value_t *vv;
|
|
361
|
|
362 a = (ngx_array_t *) ((char *) r + data);
|
|
363
|
|
364 if (a->nelts == 0) {
|
|
365 return NGX_HTTP_VAR_NOT_FOUND;
|
|
366 }
|
|
367
|
|
368 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
369 if (vv == NULL) {
|
|
370 return NULL;
|
|
371 }
|
|
372
|
|
373 vv->value = 0;
|
|
374
|
|
375 h = a->elts;
|
|
376
|
|
377 if (a->nelts == 1) {
|
|
378 vv->text = (*h)->value;
|
|
379 return vv;
|
|
380 }
|
|
381
|
|
382 vv->text.len = (size_t) - (ssize_t) (sizeof("; ") - 1);
|
|
383
|
|
384 for (i = 0; i < a->nelts; i++) {
|
|
385 vv->text.len += h[i]->value.len + sizeof("; ") - 1;
|
|
386 }
|
|
387
|
|
388 vv->text.data = ngx_palloc(r->pool, vv->text.len);
|
|
389 if (vv->text.data == NULL) {
|
|
390 return NULL;
|
|
391 }
|
|
392
|
|
393 p = vv->text.data;
|
|
394
|
|
395 for (i = 0; /* void */ ; i++) {
|
|
396 p = ngx_cpymem(p, h[i]->value.data, h[i]->value.len);
|
|
397
|
|
398 if (i == a->nelts - 1) {
|
|
399 break;
|
|
400 }
|
|
401
|
|
402 *p++ = ';'; *p++ = ' ';
|
|
403 }
|
|
404
|
|
405 return vv;
|
|
406 }
|
|
407
|
|
408
|
|
409 static ngx_http_variable_value_t *
|
50
|
410 ngx_http_variable_unknown_header(ngx_http_request_t *r, uintptr_t data)
|
48
|
411 {
|
50
|
412 ngx_str_t *var = (ngx_str_t *) data;
|
|
413
|
48
|
414 u_char ch;
|
|
415 ngx_uint_t i, n;
|
|
416 ngx_list_part_t *part;
|
|
417 ngx_table_elt_t *header;
|
50
|
418 ngx_http_variable_value_t *vv;
|
48
|
419
|
|
420 part = &r->headers_in.headers.part;
|
|
421 header = part->elts;
|
|
422
|
|
423 for (i = 0; /* void */ ; i++) {
|
|
424
|
|
425 if (i >= part->nelts) {
|
|
426 if (part->next == NULL) {
|
|
427 break;
|
|
428 }
|
|
429
|
|
430 part = part->next;
|
|
431 header = part->elts;
|
|
432 i = 0;
|
|
433 }
|
|
434
|
58
|
435 for (n = 0; n + 5 < var->len && n < header[i].key.len; n++) {
|
48
|
436 ch = header[i].key.data[n];
|
|
437
|
58
|
438 if (ch >= 'A' && ch <= 'Z') {
|
|
439 ch |= 0x20;
|
48
|
440
|
|
441 } else if (ch == '-') {
|
|
442 ch = '_';
|
|
443 }
|
|
444
|
|
445 if (var->data[n + 5] != ch) {
|
|
446 break;
|
|
447 }
|
|
448 }
|
|
449
|
|
450 if (n + 5 == var->len) {
|
50
|
451 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
452 if (vv == NULL) {
|
48
|
453 return NULL;
|
|
454 }
|
|
455
|
50
|
456 vv->value = 0;
|
|
457 vv->text = header[i].value;
|
|
458 return vv;
|
48
|
459 }
|
|
460 }
|
|
461
|
58
|
462 return NGX_HTTP_VAR_NOT_FOUND;
|
|
463 }
|
|
464
|
|
465
|
|
466 static ngx_http_variable_value_t *
|
|
467 ngx_http_variable_host(ngx_http_request_t *r, uintptr_t data)
|
|
468 {
|
|
469 ngx_http_variable_value_t *vv;
|
|
470
|
|
471 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
472 if (vv == NULL) {
|
|
473 return NULL;
|
|
474 }
|
|
475
|
|
476 vv->value = 0;
|
|
477
|
|
478 if (r->headers_in.host) {
|
|
479 vv->text.len = r->headers_in.host_name_len;
|
|
480 vv->text.data = r->headers_in.host->value.data;
|
|
481
|
|
482 } else {
|
|
483 vv->text = r->server_name;
|
|
484 }
|
|
485
|
|
486 return vv;
|
48
|
487 }
|
|
488
|
|
489
|
|
490 static ngx_http_variable_value_t *
|
|
491 ngx_http_variable_remote_addr(ngx_http_request_t *r, uintptr_t data)
|
|
492 {
|
50
|
493 ngx_http_variable_value_t *vv;
|
48
|
494
|
50
|
495 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
496 if (vv == NULL) {
|
48
|
497 return NULL;
|
|
498 }
|
|
499
|
50
|
500 vv->value = 0;
|
|
501 vv->text = r->connection->addr_text;
|
48
|
502
|
50
|
503 return vv;
|
48
|
504 }
|
|
505
|
|
506
|
|
507 static ngx_http_variable_value_t *
|
58
|
508 ngx_http_variable_remote_port(ngx_http_request_t *r, uintptr_t data)
|
48
|
509 {
|
58
|
510 ngx_uint_t port;
|
|
511 struct sockaddr_in *sin;
|
|
512 ngx_http_variable_value_t *vv;
|
|
513
|
|
514 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
515 if (vv == NULL) {
|
|
516 return NULL;
|
|
517 }
|
|
518
|
|
519 vv->value = 0;
|
|
520 vv->text.len = 0;
|
|
521
|
|
522 vv->text.data = ngx_palloc(r->pool, sizeof("65535") - 1);
|
|
523 if (vv->text.data == NULL) {
|
|
524 return NULL;
|
|
525 }
|
|
526
|
|
527 /* AF_INET only */
|
|
528
|
|
529 if (r->connection->sockaddr->sa_family == AF_INET) {
|
|
530 sin = (struct sockaddr_in *) r->connection->sockaddr;
|
|
531
|
|
532 port = ntohs(sin->sin_port);
|
|
533
|
|
534 if (port > 0 && port < 65536) {
|
|
535 vv->value = port;
|
|
536 vv->text.len = ngx_sprintf(vv->text.data, "%ui", port)
|
|
537 - vv->text.data;
|
|
538 }
|
|
539 }
|
|
540
|
|
541 return vv;
|
|
542 }
|
|
543
|
|
544
|
|
545 static ngx_http_variable_value_t *
|
|
546 ngx_http_variable_server_addr(ngx_http_request_t *r, uintptr_t data)
|
|
547 {
|
|
548 socklen_t len;
|
|
549 ngx_connection_t *c;
|
|
550 struct sockaddr_in sin;
|
50
|
551 ngx_http_variable_value_t *vv;
|
48
|
552
|
50
|
553 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
554 if (vv == NULL) {
|
48
|
555 return NULL;
|
|
556 }
|
|
557
|
50
|
558 vv->value = 0;
|
58
|
559
|
|
560 vv->text.data = ngx_palloc(r->pool, INET_ADDRSTRLEN);
|
|
561 if (vv->text.data == NULL) {
|
|
562 return NULL;
|
|
563 }
|
|
564
|
|
565 c = r->connection;
|
|
566
|
|
567 if (r->in_addr == 0) {
|
|
568 len = sizeof(struct sockaddr_in);
|
|
569 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
|
|
570 ngx_log_error(NGX_LOG_CRIT, c->log,
|
|
571 ngx_socket_errno, "getsockname() failed");
|
|
572 return NULL;
|
|
573 }
|
|
574
|
|
575 r->in_addr = sin.sin_addr.s_addr;
|
|
576 }
|
|
577
|
|
578 vv->text.len = ngx_inet_ntop(c->listening->family, &r->in_addr,
|
|
579 vv->text.data, INET_ADDRSTRLEN);
|
48
|
580
|
50
|
581 return vv;
|
48
|
582 }
|
|
583
|
|
584
|
|
585 static ngx_http_variable_value_t *
|
58
|
586 ngx_http_variable_server_port(ngx_http_request_t *r, uintptr_t data)
|
|
587 {
|
|
588 ngx_http_variable_value_t *vv;
|
|
589
|
|
590 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
591 if (vv == NULL) {
|
|
592 return NULL;
|
|
593 }
|
|
594
|
|
595 vv->value = r->port;
|
|
596 vv->text.len = r->port_text->len - 1;
|
|
597 vv->text.data = r->port_text->data + 1;
|
|
598
|
|
599 return vv;
|
|
600 }
|
|
601
|
|
602
|
|
603 static ngx_http_variable_value_t *
|
|
604 ngx_http_variable_document_root(ngx_http_request_t *r, uintptr_t data)
|
48
|
605 {
|
58
|
606 ngx_http_core_loc_conf_t *clcf;
|
|
607 ngx_http_variable_value_t *vv;
|
|
608
|
|
609 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
610 if (vv == NULL) {
|
|
611 return NULL;
|
|
612 }
|
|
613
|
|
614 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
615
|
|
616 vv->value = 0;
|
|
617 vv->text = clcf->root;
|
|
618
|
|
619 return vv;
|
|
620 }
|
|
621
|
|
622
|
|
623 static ngx_http_variable_value_t *
|
|
624 ngx_http_variable_request_filename(ngx_http_request_t *r, uintptr_t data)
|
|
625 {
|
50
|
626 ngx_http_variable_value_t *vv;
|
48
|
627
|
50
|
628 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
629 if (vv == NULL) {
|
48
|
630 return NULL;
|
|
631 }
|
|
632
|
50
|
633 vv->value = 0;
|
58
|
634
|
106
|
635 if (ngx_http_map_uri_to_path(r, &vv->text, 0) == NULL) {
|
|
636 return NULL;
|
|
637 }
|
58
|
638
|
106
|
639 /* ngx_http_map_uri_to_path() allocates memory for terminating '\0' */
|
58
|
640
|
106
|
641 vv->text.len--;
|
48
|
642
|
50
|
643 return vv;
|
48
|
644 }
|
|
645
|
|
646
|
88
|
647 static ngx_http_variable_value_t *
|
110
|
648 ngx_http_variable_request_method(ngx_http_request_t *r, uintptr_t data)
|
|
649 {
|
|
650 ngx_http_variable_value_t *vv;
|
|
651
|
|
652 if (r->method_name.data == NULL) {
|
|
653 return NGX_HTTP_VAR_NOT_FOUND;
|
|
654 }
|
|
655
|
|
656 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
657 if (vv == NULL) {
|
|
658 return NULL;
|
|
659 }
|
|
660
|
|
661 vv->value = 0;
|
|
662
|
|
663 if (r->upstream && r->upstream->method.len) {
|
|
664 vv->text = r->upstream->method;
|
|
665
|
|
666 } else {
|
|
667 vv->text = r->method_name;
|
|
668 }
|
|
669
|
|
670 return vv;
|
|
671 }
|
|
672
|
|
673
|
|
674 static ngx_http_variable_value_t *
|
88
|
675 ngx_http_variable_remote_user(ngx_http_request_t *r, uintptr_t data)
|
|
676 {
|
|
677 ngx_int_t rc;
|
|
678 ngx_http_variable_value_t *vv;
|
|
679
|
|
680 rc = ngx_http_auth_basic_user(r);
|
|
681
|
|
682 if (rc == NGX_DECLINED) {
|
|
683 return NGX_HTTP_VAR_NOT_FOUND;
|
|
684 }
|
|
685
|
|
686 if (rc == NGX_ERROR) {
|
|
687 return NULL;
|
|
688 }
|
|
689
|
|
690 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
691 if (vv == NULL) {
|
|
692 return NULL;
|
|
693 }
|
|
694
|
|
695 vv->value = 0;
|
|
696 vv->text = r->headers_in.user;
|
|
697
|
|
698 return vv;
|
|
699 }
|
|
700
|
|
701
|
48
|
702 ngx_int_t
|
58
|
703 ngx_http_variables_add_core_vars(ngx_conf_t *cf)
|
48
|
704 {
|
58
|
705 ngx_http_variable_t *v, *cv;
|
50
|
706 ngx_http_core_main_conf_t *cmcf;
|
48
|
707
|
58
|
708 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
709
|
|
710 if (ngx_array_init(&cmcf->all_variables, cf->pool, 32,
|
118
|
711 sizeof(ngx_http_variable_t))
|
|
712 == NGX_ERROR)
|
58
|
713 {
|
48
|
714 return NGX_ERROR;
|
|
715 }
|
|
716
|
50
|
717 for (cv = ngx_http_core_variables; cv->name.len; cv++) {
|
58
|
718 v = ngx_array_push(&cmcf->all_variables);
|
|
719 if (v == NULL) {
|
48
|
720 return NGX_ERROR;
|
|
721 }
|
|
722
|
58
|
723 *v = *cv;
|
48
|
724 }
|
|
725
|
|
726 return NGX_OK;
|
|
727 }
|
58
|
728
|
|
729
|
|
730 ngx_int_t
|
|
731 ngx_http_variables_init_vars(ngx_conf_t *cf)
|
|
732 {
|
|
733 ngx_uint_t i, n;
|
|
734 ngx_http_variable_t *v, *av;
|
|
735 ngx_http_core_main_conf_t *cmcf;
|
|
736
|
|
737 /* set the handlers for the indexed http variables */
|
|
738
|
|
739 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
740
|
|
741 v = cmcf->variables.elts;
|
|
742 av = cmcf->all_variables.elts;
|
|
743
|
|
744 for (i = 0; i < cmcf->variables.nelts; i++) {
|
|
745
|
|
746 for (n = 0; n < cmcf->all_variables.nelts; n++) {
|
|
747
|
|
748 if (v[i].name.len == av[n].name.len
|
|
749 && ngx_strncmp(v[i].name.data, av[n].name.data, v[i].name.len)
|
|
750 == 0)
|
|
751 {
|
|
752 v[i].handler = av[n].handler;
|
|
753 v[i].data = av[n].data;
|
76
|
754
|
|
755 av[n].flags |= NGX_HTTP_VAR_INDEXED;
|
|
756 v[i].flags = av[n].flags;
|
58
|
757
|
82
|
758 av[n].index = i;
|
|
759
|
58
|
760 goto next;
|
|
761 }
|
|
762 }
|
|
763
|
|
764 if (ngx_strncmp(v[i].name.data, "http_", 5) == 0) {
|
|
765 v[i].handler = ngx_http_variable_unknown_header;
|
|
766 v[i].data = (uintptr_t) &v[i].name;
|
|
767
|
|
768 continue;
|
|
769 }
|
|
770
|
|
771 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
|
772 "unknown \"%V\" variable", &v[i].name);
|
|
773
|
|
774 return NGX_ERROR;
|
|
775
|
|
776 next:
|
|
777 continue;
|
|
778 }
|
|
779
|
|
780 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, cf->log, 0,
|
|
781 "http variables: %ui", cmcf->variables.nelts);
|
|
782
|
|
783
|
|
784 /* init the all http variables hash */
|
|
785
|
|
786 cmcf->variables_hash.max_size = 500;
|
|
787 cmcf->variables_hash.bucket_limit = 1;
|
|
788 cmcf->variables_hash.bucket_size = sizeof(ngx_http_variable_t);
|
|
789 cmcf->variables_hash.name = "http variables";
|
|
790
|
|
791 if (ngx_hash_init(&cmcf->variables_hash, cf->pool,
|
|
792 cmcf->all_variables.elts, cmcf->all_variables.nelts) != NGX_OK)
|
|
793 {
|
|
794 return NGX_ERROR;
|
|
795 }
|
|
796
|
|
797 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, cf->log, 0,
|
|
798 "http variables hash size: %ui for %ui values, "
|
|
799 "max buckets per entry: %ui",
|
|
800 cmcf->variables_hash.hash_size, cmcf->all_variables.nelts,
|
|
801 cmcf->variables_hash.min_buckets);
|
|
802
|
|
803 return NGX_OK;
|
|
804 }
|