56
|
1
|
|
2 /*
|
|
3 * Copyright (C) Igor Sysoev
|
|
4 */
|
|
5
|
|
6
|
|
7 #include <ngx_config.h>
|
|
8 #include <ngx_core.h>
|
|
9 #include <ngx_http.h>
|
|
10
|
|
11
|
58
|
12 #define ngx_http_script_exit (u_char *) &ngx_http_script_exit_code
|
|
13
|
|
14 static uintptr_t ngx_http_script_exit_code = (uintptr_t) NULL;
|
|
15
|
|
16
|
|
17 ngx_uint_t
|
|
18 ngx_http_script_variables_count(ngx_str_t *value)
|
56
|
19 {
|
58
|
20 ngx_uint_t i, n;
|
56
|
21
|
58
|
22 for (n = 0, i = 0; i < value->len; i++) {
|
|
23 if (value->data[i] == '$') {
|
|
24 n++;
|
|
25 }
|
56
|
26 }
|
|
27
|
58
|
28 return n;
|
|
29 }
|
|
30
|
|
31
|
|
32 ngx_int_t
|
|
33 ngx_http_script_compile(ngx_http_script_compile_t *sc)
|
|
34 {
|
|
35 u_char ch;
|
|
36 size_t size;
|
|
37 ngx_int_t index;
|
|
38 ngx_str_t name;
|
|
39 uintptr_t *code;
|
|
40 ngx_uint_t i, n, bracket;
|
|
41 ngx_http_script_var_code_t *var_code;
|
|
42 ngx_http_script_copy_code_t *copy;
|
|
43 ngx_http_script_copy_capture_code_t *copy_capture;
|
|
44
|
|
45 if (*sc->lengths == NULL) {
|
|
46 n = sc->variables * (2 * sizeof(ngx_http_script_copy_code_t)
|
|
47 + sizeof(ngx_http_script_var_code_t))
|
|
48 + sizeof(uintptr_t);
|
|
49
|
|
50 *sc->lengths = ngx_array_create(sc->cf->pool, n, 1);
|
|
51 if (*sc->lengths == NULL) {
|
|
52 return NGX_ERROR;
|
|
53 }
|
|
54 }
|
|
55
|
|
56
|
|
57 if (*sc->values == NULL) {
|
|
58 n = (sc->variables * (2 * sizeof(ngx_http_script_copy_code_t)
|
|
59 + sizeof(ngx_http_script_var_code_t))
|
|
60 + sizeof(uintptr_t)
|
|
61 + sc->source->len
|
|
62 + sizeof(uintptr_t) - 1)
|
|
63 & ~(sizeof(uintptr_t) - 1);
|
|
64
|
|
65 *sc->values = ngx_array_create(sc->cf->pool, n, 1);
|
|
66 if (*sc->values == NULL) {
|
56
|
67 return NGX_ERROR;
|
|
68 }
|
|
69 }
|
|
70
|
58
|
71 sc->variables = 0;
|
|
72
|
|
73 for (i = 0; i < sc->source->len; /* void */ ) {
|
|
74
|
|
75 name.len = 0;
|
|
76
|
|
77 if (sc->source->data[i] == '$') {
|
|
78
|
|
79 if (++i == sc->source->len) {
|
|
80 goto invalid_variable;
|
|
81 }
|
|
82
|
|
83 if (sc->source->data[i] >= '1' && sc->source->data[i] <= '9') {
|
|
84
|
|
85 copy_capture = ngx_http_script_add_code(*sc->lengths,
|
|
86 sizeof(ngx_http_script_copy_capture_code_t),
|
|
87 NULL);
|
|
88 if (copy_capture == NULL) {
|
|
89 return NGX_ERROR;
|
|
90 }
|
|
91
|
|
92 copy_capture->code = (ngx_http_script_code_pt)
|
|
93 ngx_http_script_copy_capture_len_code;
|
|
94 copy_capture->n = 2 * (sc->source->data[i] - '0');
|
|
95
|
|
96 copy_capture = ngx_http_script_add_code(*sc->values,
|
|
97 sizeof(ngx_http_script_copy_capture_code_t),
|
|
98 &sc->main);
|
|
99 if (copy_capture == NULL) {
|
|
100 return NGX_ERROR;
|
|
101 }
|
|
102
|
|
103 copy_capture->code = ngx_http_script_copy_capture_code;
|
|
104 copy_capture->n = sc->source->data[i] - '0';
|
|
105
|
|
106 if (sc->ncaptures < copy_capture->n) {
|
|
107 sc->ncaptures = copy_capture->n;
|
|
108 }
|
|
109
|
|
110 copy_capture->n *= 2;
|
56
|
111
|
58
|
112 i++;
|
|
113
|
|
114 continue;
|
|
115 }
|
|
116
|
|
117 if (sc->source->data[i] == '{') {
|
|
118 bracket = 1;
|
|
119
|
|
120 if (++i == sc->source->len) {
|
|
121 goto invalid_variable;
|
|
122 }
|
|
123
|
|
124 name.data = &sc->source->data[i];
|
|
125
|
|
126 } else {
|
|
127 bracket = 0;
|
|
128 name.data = &sc->source->data[i];
|
|
129 }
|
|
130
|
|
131 for ( /* void */ ; i < sc->source->len; i++, name.len++) {
|
|
132 ch = sc->source->data[i];
|
56
|
133
|
58
|
134 if (ch == '}' && bracket) {
|
|
135 i++;
|
|
136 bracket = 0;
|
|
137 break;
|
|
138 }
|
|
139
|
|
140 if ((ch >= 'A' && ch <= 'Z')
|
|
141 || (ch >= 'a' && ch <= 'z')
|
|
142 || (ch >= '0' && ch <= '9')
|
|
143 || ch == '_')
|
|
144 {
|
|
145 continue;
|
|
146 }
|
|
147
|
|
148 break;
|
|
149 }
|
|
150
|
|
151 if (bracket) {
|
|
152 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0,
|
|
153 "the closing bracket in \"%V\" "
|
|
154 "variable is missing", &name);
|
56
|
155 return NGX_ERROR;
|
|
156 }
|
|
157
|
58
|
158 if (name.len == 0) {
|
|
159 goto invalid_variable;
|
|
160 }
|
56
|
161
|
58
|
162 sc->variables++;
|
56
|
163
|
58
|
164 index = ngx_http_get_variable_index(sc->cf, &name);
|
|
165
|
|
166 if (index == NGX_ERROR) {
|
56
|
167 return NGX_ERROR;
|
|
168 }
|
|
169
|
58
|
170 var_code = ngx_http_script_add_code(*sc->lengths,
|
|
171 sizeof(ngx_http_script_var_code_t),
|
|
172 NULL);
|
56
|
173 if (var_code == NULL) {
|
|
174 return NGX_ERROR;
|
|
175 }
|
|
176
|
|
177 var_code->code = (ngx_http_script_code_pt)
|
58
|
178 ngx_http_script_copy_var_len_code;
|
|
179 var_code->index = (uintptr_t) index;
|
56
|
180
|
|
181
|
58
|
182 var_code = ngx_http_script_add_code(*sc->values,
|
|
183 sizeof(ngx_http_script_var_code_t),
|
|
184 &sc->main);
|
56
|
185 if (var_code == NULL) {
|
|
186 return NGX_ERROR;
|
|
187 }
|
|
188
|
58
|
189 var_code->code = ngx_http_script_copy_var_code;
|
|
190 var_code->index = (uintptr_t) index;
|
|
191
|
|
192 continue;
|
|
193 }
|
56
|
194
|
58
|
195 if (sc->source->data[i] == '?' && sc->compile_args) {
|
|
196 sc->args = 1;
|
|
197 sc->compile_args = 0;
|
56
|
198
|
58
|
199 code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t),
|
|
200 &sc->main);
|
|
201 if (code == NULL) {
|
56
|
202 return NGX_ERROR;
|
|
203 }
|
|
204
|
58
|
205 *code = (uintptr_t) ngx_http_script_start_args_code;
|
|
206
|
|
207 i++;
|
|
208
|
56
|
209 continue;
|
|
210 }
|
|
211
|
58
|
212 name.data = &sc->source->data[i];
|
|
213
|
|
214 while (i < sc->source->len
|
|
215 && sc->source->data[i] != '$'
|
|
216 && !(sc->source->data[i] == '?' && sc->compile_args))
|
|
217 {
|
|
218 i++;
|
|
219 name.len++;
|
|
220 }
|
|
221
|
|
222 sc->size += name.len;
|
|
223
|
|
224 copy = ngx_http_script_add_code(*sc->lengths,
|
|
225 sizeof(ngx_http_script_copy_code_t),
|
|
226 NULL);
|
|
227 if (copy == NULL) {
|
56
|
228 return NGX_ERROR;
|
|
229 }
|
58
|
230
|
|
231 copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
|
|
232 copy->len = name.len;
|
|
233
|
|
234 size = (sizeof(ngx_http_script_copy_code_t) + name.len
|
|
235 + sizeof(uintptr_t) - 1)
|
|
236 & ~(sizeof(uintptr_t) - 1);
|
56
|
237
|
58
|
238 copy = ngx_http_script_add_code(*sc->values, size, &sc->main);
|
|
239 if (copy == NULL) {
|
|
240 return NGX_ERROR;
|
|
241 }
|
|
242
|
|
243 copy->code = ngx_http_script_copy_code;
|
|
244 copy->len = name.len;
|
|
245
|
|
246 ngx_memcpy((u_char *) copy + sizeof(ngx_http_script_copy_code_t),
|
|
247 name.data, name.len);
|
56
|
248 }
|
|
249
|
58
|
250 if (sc->complete_lengths) {
|
|
251 code = ngx_http_script_add_code(*sc->lengths, sizeof(uintptr_t), NULL);
|
|
252 if (code == NULL) {
|
|
253 return NGX_ERROR;
|
|
254 }
|
56
|
255
|
58
|
256 *code = (uintptr_t) NULL;
|
56
|
257 }
|
|
258
|
58
|
259 if (sc->complete_values) {
|
|
260 code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t),
|
|
261 &sc->main);
|
|
262 if (code == NULL) {
|
|
263 return NGX_ERROR;
|
|
264 }
|
|
265
|
|
266 *code = (uintptr_t) NULL;
|
|
267 }
|
56
|
268
|
|
269 return NGX_OK;
|
58
|
270
|
|
271 invalid_variable:
|
|
272
|
|
273 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0, "invalid variable name");
|
|
274
|
|
275 return NGX_ERROR;
|
56
|
276 }
|
|
277
|
|
278
|
58
|
279 void *
|
56
|
280 ngx_http_script_start_code(ngx_pool_t *pool, ngx_array_t **codes, size_t size)
|
|
281 {
|
|
282 if (*codes == NULL) {
|
|
283 *codes = ngx_array_create(pool, 256, 1);
|
|
284 if (*codes == NULL) {
|
|
285 return NULL;
|
|
286 }
|
|
287 }
|
|
288
|
|
289 return ngx_array_push_n(*codes, size);
|
|
290 }
|
|
291
|
58
|
292
|
|
293 void *
|
|
294 ngx_http_script_add_code(ngx_array_t *codes, size_t size, void *code)
|
|
295 {
|
|
296 u_char *elts, **p;
|
|
297 void *new;
|
|
298
|
|
299 elts = codes->elts;
|
|
300
|
|
301 new = ngx_array_push_n(codes, size);
|
|
302 if (new == NULL) {
|
|
303 return NGX_CONF_ERROR;
|
|
304 }
|
|
305
|
|
306 if (code) {
|
|
307 if (elts != codes->elts) {
|
|
308 p = code;
|
|
309 *p += (u_char *) codes->elts - elts;
|
|
310 }
|
|
311 }
|
|
312
|
|
313 return new;
|
|
314 }
|
56
|
315
|
|
316
|
|
317 size_t
|
58
|
318 ngx_http_script_copy_len_code(ngx_http_script_engine_t *e)
|
56
|
319 {
|
|
320 ngx_http_script_copy_code_t *code;
|
|
321
|
58
|
322 code = (ngx_http_script_copy_code_t *) e->ip;
|
56
|
323
|
58
|
324 e->ip += sizeof(ngx_http_script_copy_code_t);
|
56
|
325
|
|
326 return code->len;
|
|
327 }
|
|
328
|
|
329
|
|
330 void
|
58
|
331 ngx_http_script_copy_code(ngx_http_script_engine_t *e)
|
56
|
332 {
|
|
333 ngx_http_script_copy_code_t *code;
|
|
334
|
58
|
335 code = (ngx_http_script_copy_code_t *) e->ip;
|
|
336
|
|
337 if (!e->skip) {
|
|
338 e->pos = ngx_cpymem(e->pos, e->ip + sizeof(ngx_http_script_copy_code_t),
|
|
339 code->len);
|
|
340 }
|
56
|
341
|
58
|
342 e->ip += sizeof(ngx_http_script_copy_code_t)
|
|
343 + ((code->len + sizeof(uintptr_t) - 1) & ~(sizeof(uintptr_t) - 1));
|
56
|
344
|
58
|
345 if (e->log) {
|
|
346 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
347 "http script copy: \"%V\"", &e->buf);
|
|
348 }
|
56
|
349 }
|
|
350
|
|
351
|
|
352 size_t
|
58
|
353 ngx_http_script_copy_var_len_code(ngx_http_script_engine_t *e)
|
56
|
354 {
|
|
355 ngx_http_variable_value_t *value;
|
|
356 ngx_http_script_var_code_t *code;
|
|
357
|
58
|
358 code = (ngx_http_script_var_code_t *) e->ip;
|
56
|
359
|
58
|
360 e->ip += sizeof(ngx_http_script_var_code_t);
|
56
|
361
|
58
|
362 value = ngx_http_get_indexed_variable(e->request, code->index);
|
56
|
363
|
58
|
364 if (value == NULL || value == NGX_HTTP_VAR_NOT_FOUND) {
|
56
|
365 return 0;
|
|
366 }
|
|
367
|
|
368 return value->text.len;
|
|
369 }
|
|
370
|
|
371
|
|
372 void
|
58
|
373 ngx_http_script_copy_var_code(ngx_http_script_engine_t *e)
|
56
|
374 {
|
|
375 ngx_http_variable_value_t *value;
|
|
376 ngx_http_script_var_code_t *code;
|
|
377
|
58
|
378 code = (ngx_http_script_var_code_t *) e->ip;
|
|
379
|
|
380 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
381
|
|
382 if (!e->skip) {
|
|
383 value = ngx_http_get_indexed_variable(e->request, code->index);
|
|
384
|
|
385 if (value == NULL || value == NGX_HTTP_VAR_NOT_FOUND) {
|
|
386 return;
|
|
387 }
|
|
388
|
|
389 e->pos = ngx_cpymem(e->pos, value->text.data, value->text.len);
|
|
390
|
|
391 if (e->log) {
|
|
392 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
393 "http script var: \"%V\"", &e->buf);
|
|
394 }
|
|
395 }
|
|
396 }
|
|
397
|
|
398
|
|
399 size_t
|
|
400 ngx_http_script_copy_capture_len_code(ngx_http_script_engine_t *e)
|
|
401 {
|
|
402 ngx_http_script_copy_capture_code_t *code;
|
|
403
|
|
404 code = (ngx_http_script_copy_capture_code_t *) e->ip;
|
|
405
|
|
406 e->ip += sizeof(ngx_http_script_copy_capture_code_t);
|
|
407
|
|
408 if ((e->args || e->quote)
|
|
409 && (e->request->quoted_uri || e->request->plus_in_uri))
|
|
410 {
|
|
411 return e->captures[code->n + 1] - e->captures[code->n]
|
|
412 + ngx_escape_uri(NULL,
|
|
413 &e->line->data[e->captures[code->n]],
|
|
414 e->captures[code->n + 1] - e->captures[code->n],
|
|
415 NGX_ESCAPE_ARGS);
|
|
416 } else {
|
|
417 return e->captures[code->n + 1] - e->captures[code->n];
|
|
418 }
|
|
419 }
|
|
420
|
|
421
|
|
422 void
|
|
423 ngx_http_script_copy_capture_code(ngx_http_script_engine_t *e)
|
|
424 {
|
|
425 ngx_http_script_copy_capture_code_t *code;
|
|
426
|
|
427 code = (ngx_http_script_copy_capture_code_t *) e->ip;
|
|
428
|
|
429 e->ip += sizeof(ngx_http_script_copy_capture_code_t);
|
56
|
430
|
58
|
431 if ((e->args || e->quote)
|
|
432 && (e->request->quoted_uri || e->request->plus_in_uri))
|
|
433 {
|
|
434 e->pos = (u_char *) ngx_escape_uri(e->pos,
|
|
435 &e->line->data[e->captures[code->n]],
|
|
436 e->captures[code->n + 1] - e->captures[code->n],
|
|
437 NGX_ESCAPE_ARGS);
|
|
438 } else {
|
|
439 e->pos = ngx_cpymem(e->pos,
|
|
440 &e->line->data[e->captures[code->n]],
|
|
441 e->captures[code->n + 1] - e->captures[code->n]);
|
|
442 }
|
|
443
|
|
444 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
445 "http script capture: \"%V\"", &e->buf);
|
|
446 }
|
|
447
|
|
448
|
|
449 void
|
|
450 ngx_http_script_start_args_code(ngx_http_script_engine_t *e)
|
|
451 {
|
|
452 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
453 "http script args");
|
|
454
|
|
455 e->args = e->pos;
|
|
456 e->ip += sizeof(uintptr_t);
|
|
457 }
|
|
458
|
|
459
|
|
460 void
|
|
461 ngx_http_script_regex_start_code(ngx_http_script_engine_t *e)
|
|
462 {
|
|
463 size_t len;
|
|
464 ngx_int_t rc;
|
|
465 ngx_uint_t n;
|
|
466 ngx_http_request_t *r;
|
|
467 ngx_http_script_engine_t le;
|
|
468 ngx_http_script_len_code_pt lcode;
|
|
469 ngx_http_script_regex_code_t *code;
|
|
470
|
|
471 code = (ngx_http_script_regex_code_t *) e->ip;
|
|
472
|
|
473 r = e->request;
|
|
474
|
|
475 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
476 "http script regex: \"%V\"", &code->name);
|
|
477
|
|
478 if (code->uri) {
|
|
479 e->line = &r->uri;
|
|
480 } else {
|
|
481 e->sp--;
|
|
482 e->line = &e->sp->text;
|
|
483 }
|
56
|
484
|
58
|
485 rc = ngx_regex_exec(code->regex, e->line, e->captures, code->ncaptures);
|
|
486
|
|
487 if (rc == NGX_REGEX_NO_MATCHED) {
|
|
488 if (e->log) {
|
|
489 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
490 "\"%V\" does not match \"%V\"", &code->name, e->line);
|
|
491 }
|
|
492
|
|
493 if (code->test) {
|
|
494 e->sp->value = 0;
|
|
495 e->sp->text.len = 0;
|
|
496 e->sp->text.data = (u_char *) "";
|
|
497 e->sp++;
|
|
498
|
|
499 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
500 return;
|
|
501 }
|
|
502
|
|
503 e->ip += code->next;
|
|
504 return;
|
|
505 }
|
|
506
|
|
507 if (rc < 0) {
|
|
508 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
509 ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"",
|
|
510 rc, e->line, &code->name);
|
|
511
|
|
512 e->ip = ngx_http_script_exit;
|
|
513 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
514 return;
|
|
515 }
|
|
516
|
|
517 if (e->log) {
|
|
518 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
519 "\"%V\" matches \"%V\"", &code->name, e->line);
|
|
520 }
|
|
521
|
|
522 if (code->test) {
|
|
523 e->sp->value = 1;
|
|
524 e->sp->text.len = 1;
|
|
525 e->sp->text.data = (u_char *) "1";
|
|
526 e->sp++;
|
|
527
|
|
528 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
529 return;
|
|
530 }
|
|
531
|
|
532 if (code->status) {
|
|
533 e->status = code->status;
|
56
|
534
|
58
|
535 if (!code->redirect) {
|
|
536 e->ip = ngx_http_script_exit;
|
|
537 return;
|
|
538 }
|
|
539 }
|
|
540
|
|
541 if (code->uri) {
|
|
542 r->internal = 1;
|
|
543 r->valid_unparsed_uri = 0;
|
|
544
|
|
545 if (code->break_cycle) {
|
|
546 r->valid_location = 0;
|
|
547
|
|
548 } else {
|
|
549 r->uri_changed = 1;
|
|
550 }
|
|
551 }
|
|
552
|
|
553 if (code->lengths == NULL) {
|
|
554 e->buf.len = code->size;
|
|
555
|
|
556 if (code->uri) {
|
|
557 if (rc && (r->quoted_uri || r->plus_in_uri)) {
|
|
558 e->buf.len += 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len,
|
|
559 NGX_ESCAPE_ARGS);
|
|
560 }
|
|
561 }
|
|
562
|
|
563 for (n = 1; n < (ngx_uint_t) rc; n++) {
|
|
564 e->buf.len += e->captures[2 * n + 1] - e->captures[2 * n];
|
|
565 }
|
|
566
|
|
567 } else {
|
|
568 ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
|
|
569
|
|
570 le.ip = code->lengths->elts;
|
|
571 le.request = r;
|
|
572 le.captures = e->captures;
|
|
573
|
|
574 len = 1; /* reserve 1 byte for possible "?" */
|
|
575
|
|
576 while (*(uintptr_t *) le.ip) {
|
|
577 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
578 len += lcode(&le);
|
|
579 }
|
|
580
|
|
581 e->buf.len = len;
|
|
582 }
|
|
583
|
|
584 if (code->args && code->add_args && r->args.len) {
|
|
585 e->buf.len += r->args.len + 1;
|
|
586 }
|
|
587
|
|
588 e->buf.data = ngx_palloc(r->pool, e->buf.len);
|
|
589 if (e->buf.data == NULL) {
|
|
590 e->ip = ngx_http_script_exit;
|
|
591 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
56
|
592 return;
|
|
593 }
|
|
594
|
58
|
595 e->quote = code->redirect;
|
|
596
|
|
597 e->pos = e->buf.data;
|
|
598
|
|
599 e->ip += sizeof(ngx_http_script_regex_code_t);
|
|
600 }
|
|
601
|
|
602
|
|
603 void
|
|
604 ngx_http_script_regex_end_code(ngx_http_script_engine_t *e)
|
|
605 {
|
|
606 ngx_http_request_t *r;
|
|
607 ngx_http_script_regex_end_code_t *code;
|
|
608
|
|
609 code = (ngx_http_script_regex_end_code_t *) e->ip;
|
|
610
|
|
611 r = e->request;
|
|
612
|
|
613 e->quote = 0;
|
|
614
|
|
615 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
616 "http script regex end");
|
|
617
|
|
618 if (code->redirect) {
|
|
619
|
|
620 if (code->add_args && r->args.len) {
|
|
621 *e->pos++ = (u_char) (code->args ? '&' : '?');
|
|
622 e->pos = ngx_cpymem(e->pos, r->args.data, r->args.len);
|
|
623 }
|
|
624
|
|
625 e->buf.len = e->pos - e->buf.data;
|
|
626
|
|
627 if (e->log) {
|
|
628 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
629 "rewritten redirect: \"%V\"", &e->buf);
|
|
630 }
|
|
631
|
|
632 r->headers_out.location = ngx_list_push(&r->headers_out.headers);
|
|
633 if (r->headers_out.location == NULL) {
|
|
634 e->ip = ngx_http_script_exit;
|
|
635 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
636 return;
|
|
637 }
|
|
638
|
|
639 r->headers_out.location->hash = 1;
|
|
640 r->headers_out.location->key.len = sizeof("Location") - 1;
|
|
641 r->headers_out.location->key.data = (u_char *) "Location";
|
|
642 r->headers_out.location->value = e->buf;
|
|
643
|
|
644 e->ip += sizeof(ngx_http_script_regex_end_code_t);
|
|
645 return;
|
|
646 }
|
|
647
|
|
648 if (e->args) {
|
|
649 e->buf.len = e->args - e->buf.data;
|
|
650
|
|
651 if (code->add_args && r->args.len) {
|
|
652 *e->pos++ = '&';
|
|
653 e->pos = ngx_cpymem(e->pos, r->args.data, r->args.len);
|
|
654 }
|
|
655
|
|
656 r->args.len = e->pos - e->args;
|
|
657 r->args.data = e->args;
|
|
658
|
|
659 e->args = NULL;
|
|
660
|
|
661 } else {
|
|
662 e->buf.len = e->pos - e->buf.data;
|
|
663 }
|
|
664
|
|
665 if (e->log) {
|
|
666 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
667 "rewritten data: \"%V\", args: \"%V\"",
|
|
668 &e->buf, &r->args);
|
|
669 }
|
|
670
|
|
671 if (code->uri) {
|
|
672 r->uri = e->buf;
|
|
673
|
|
674 if (ngx_http_set_exten(r) != NGX_OK) {
|
|
675 e->ip = ngx_http_script_exit;
|
|
676 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
677 return;
|
|
678 }
|
|
679 }
|
|
680
|
|
681 e->ip += sizeof(ngx_http_script_regex_end_code_t);
|
|
682 }
|
|
683
|
|
684
|
|
685 void
|
|
686 ngx_http_script_return_code(ngx_http_script_engine_t *e)
|
|
687 {
|
|
688 ngx_http_script_return_code_t *code;
|
|
689
|
|
690 code = (ngx_http_script_return_code_t *) e->ip;
|
|
691
|
|
692 e->status = code->status;
|
|
693
|
|
694 e->ip += sizeof(ngx_http_script_return_code_t) - sizeof(uintptr_t);
|
56
|
695 }
|
58
|
696
|
|
697
|
|
698 void
|
|
699 ngx_http_script_if_code(ngx_http_script_engine_t *e)
|
|
700 {
|
|
701 ngx_http_script_if_code_t *code;
|
|
702
|
|
703 code = (ngx_http_script_if_code_t *) e->ip;
|
|
704
|
|
705 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
706 "http script if");
|
|
707
|
|
708 e->sp--;
|
|
709
|
|
710 if (e->sp->value) {
|
|
711 if (code->loc_conf) {
|
|
712 e->request->loc_conf = code->loc_conf;
|
|
713 }
|
|
714
|
|
715 e->ip += sizeof(ngx_http_script_if_code_t);
|
|
716 return;
|
|
717 }
|
|
718
|
|
719 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
720 "http script if false");
|
|
721
|
|
722 e->ip += code->next;
|
|
723 }
|
|
724
|
|
725
|
|
726 void
|
|
727 ngx_http_script_value_code(ngx_http_script_engine_t *e)
|
|
728 {
|
|
729 ngx_http_script_value_code_t *code;
|
|
730
|
|
731 code = (ngx_http_script_value_code_t *) e->ip;
|
|
732
|
|
733 e->ip += sizeof(ngx_http_script_value_code_t);
|
|
734
|
|
735 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
736 "http script value");
|
|
737
|
|
738 e->sp->value = (ngx_uint_t) code->value;
|
|
739 e->sp->text.len = (size_t) code->text_len;
|
|
740 e->sp->text.data = (u_char *) code->text_data;
|
|
741 e->sp++;
|
|
742 }
|
|
743
|
|
744
|
|
745 void
|
|
746 ngx_http_script_set_var_code(ngx_http_script_engine_t *e)
|
|
747 {
|
|
748 ngx_http_request_t *r;
|
|
749 ngx_http_variable_value_t *value;
|
|
750 ngx_http_core_main_conf_t *cmcf;
|
|
751 ngx_http_script_var_code_t *code;
|
|
752
|
|
753 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
754 "http script set var");
|
|
755
|
|
756 code = (ngx_http_script_var_code_t *) e->ip;
|
|
757
|
|
758 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
759
|
|
760 r = e->request;
|
|
761
|
|
762 if (r->variables == NULL) {
|
|
763 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
764
|
|
765 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
766 * sizeof(ngx_http_variable_value_t *));
|
|
767 if (r->variables == NULL) {
|
|
768 e->ip = ngx_http_script_exit;
|
|
769 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
770 return;
|
|
771 }
|
|
772 }
|
|
773
|
|
774 value = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
775 if (value == NULL) {
|
|
776 e->ip = ngx_http_script_exit;
|
|
777 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
778 return;
|
|
779 }
|
|
780
|
|
781 e->sp--;
|
|
782
|
|
783 *value = *e->sp;
|
|
784
|
|
785 r->variables[code->index] = value;
|
|
786 }
|
|
787
|
|
788
|
|
789 void
|
|
790 ngx_http_script_var_code(ngx_http_script_engine_t *e)
|
|
791 {
|
|
792 ngx_http_variable_value_t *value;
|
|
793 ngx_http_script_var_code_t *code;
|
|
794
|
|
795 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
796 "http script var");
|
|
797
|
|
798 code = (ngx_http_script_var_code_t *) e->ip;
|
|
799
|
|
800 e->ip += sizeof(ngx_http_script_var_code_t);
|
|
801
|
|
802 value = ngx_http_get_indexed_variable(e->request, code->index);
|
|
803
|
|
804 if (value == NULL || value == NGX_HTTP_VAR_NOT_FOUND) {
|
|
805 e->sp->value = 0;
|
|
806 e->sp->text.len = 0;
|
|
807 e->sp->text.data = (u_char *) "";
|
|
808 e->sp++;
|
|
809
|
|
810 return;
|
|
811 }
|
|
812
|
|
813 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0,
|
|
814 "http script var: %ui, \"%V\"", value->value, &value->text);
|
|
815
|
|
816 *e->sp = *value;
|
|
817 e->sp++;
|
|
818 }
|
|
819
|
|
820
|
|
821 void
|
|
822 ngx_http_script_nop_code(ngx_http_script_engine_t *e)
|
|
823 {
|
|
824 e->ip += sizeof(uintptr_t);
|
|
825 }
|