Mercurial > hg > nginx
annotate src/http/ngx_http_script.c @ 553:45033d85b30e release-0.2.5
nginx-0.2.5-RELEASE import
*) Change: the duplicate value of the ngx_http_geo_module variable now
causes the warning and changes old value.
*) Feature: the ngx_http_ssi_module supports the "set" command.
*) Feature: the ngx_http_ssi_module supports the "file" parameter in
the "include" command.
*) Feature: the ngx_http_ssi_module supports the variable value
substitutions in expressions of the "if" command.
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Tue, 04 Oct 2005 10:38:53 +0000 |
parents | 563ad09abf50 |
children | 58475592100c |
rev | line source |
---|---|
441
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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11 |
509 | 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) | |
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19 { |
509 | 20 ngx_uint_t i, n; |
507 | 21 |
509 | 22 for (n = 0, i = 0; i < value->len; i++) { |
23 if (value->data[i] == '$') { | |
24 n++; | |
25 } | |
507 | 26 } |
27 | |
509 | 28 return n; |
29 } | |
30 | |
31 | |
32 ngx_int_t | |
33 ngx_http_script_compile(ngx_http_script_compile_t *sc) | |
34 { | |
35 u_char ch; | |
36 size_t size; | |
37 ngx_int_t index; | |
38 ngx_str_t name; | |
39 uintptr_t *code; | |
40 ngx_uint_t i, n, bracket; | |
41 ngx_http_script_var_code_t *var_code; | |
42 ngx_http_script_copy_code_t *copy; | |
43 ngx_http_script_copy_capture_code_t *copy_capture; | |
44 | |
45 if (*sc->lengths == NULL) { | |
46 n = sc->variables * (2 * sizeof(ngx_http_script_copy_code_t) | |
47 + sizeof(ngx_http_script_var_code_t)) | |
48 + sizeof(uintptr_t); | |
49 | |
50 *sc->lengths = ngx_array_create(sc->cf->pool, n, 1); | |
51 if (*sc->lengths == NULL) { | |
52 return NGX_ERROR; | |
53 } | |
54 } | |
55 | |
56 | |
57 if (*sc->values == NULL) { | |
58 n = (sc->variables * (2 * sizeof(ngx_http_script_copy_code_t) | |
59 + sizeof(ngx_http_script_var_code_t)) | |
60 + sizeof(uintptr_t) | |
61 + sc->source->len | |
62 + sizeof(uintptr_t) - 1) | |
63 & ~(sizeof(uintptr_t) - 1); | |
64 | |
65 *sc->values = ngx_array_create(sc->cf->pool, n, 1); | |
66 if (*sc->values == NULL) { | |
507 | 67 return NGX_ERROR; |
68 } | |
69 } | |
70 | |
509 | 71 sc->variables = 0; |
72 | |
73 for (i = 0; i < sc->source->len; /* void */ ) { | |
74 | |
75 name.len = 0; | |
76 | |
77 if (sc->source->data[i] == '$') { | |
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; | |
507 | 111 |
509 | 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]; | |
507 | 133 |
509 | 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); | |
507 | 155 return NGX_ERROR; |
156 } | |
157 | |
509 | 158 if (name.len == 0) { |
159 goto invalid_variable; | |
160 } | |
507 | 161 |
509 | 162 sc->variables++; |
507 | 163 |
509 | 164 index = ngx_http_get_variable_index(sc->cf, &name); |
165 | |
166 if (index == NGX_ERROR) { | |
507 | 167 return NGX_ERROR; |
168 } | |
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169 |
509 | 170 var_code = ngx_http_script_add_code(*sc->lengths, |
171 sizeof(ngx_http_script_var_code_t), | |
172 NULL); | |
507 | 173 if (var_code == NULL) { |
174 return NGX_ERROR; | |
175 } | |
176 | |
177 var_code->code = (ngx_http_script_code_pt) | |
509 | 178 ngx_http_script_copy_var_len_code; |
179 var_code->index = (uintptr_t) index; | |
507 | 180 |
181 | |
509 | 182 var_code = ngx_http_script_add_code(*sc->values, |
183 sizeof(ngx_http_script_var_code_t), | |
184 &sc->main); | |
507 | 185 if (var_code == NULL) { |
186 return NGX_ERROR; | |
187 } | |
188 | |
509 | 189 var_code->code = ngx_http_script_copy_var_code; |
190 var_code->index = (uintptr_t) index; | |
191 | |
192 continue; | |
193 } | |
507 | 194 |
509 | 195 if (sc->source->data[i] == '?' && sc->compile_args) { |
196 sc->args = 1; | |
197 sc->compile_args = 0; | |
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198 |
509 | 199 code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t), |
200 &sc->main); | |
201 if (code == NULL) { | |
507 | 202 return NGX_ERROR; |
203 } | |
204 | |
509 | 205 *code = (uintptr_t) ngx_http_script_start_args_code; |
206 | |
207 i++; | |
208 | |
507 | 209 continue; |
210 } | |
211 | |
509 | 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) { | |
507 | 228 return NGX_ERROR; |
229 } | |
509 | 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); | |
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237 |
509 | 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); | |
507 | 248 } |
249 | |
509 | 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 } | |
507 | 255 |
509 | 256 *code = (uintptr_t) NULL; |
507 | 257 } |
258 | |
509 | 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 } | |
507 | 268 |
269 return NGX_OK; | |
509 | 270 |
271 invalid_variable: | |
272 | |
273 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0, "invalid variable name"); | |
274 | |
275 return NGX_ERROR; | |
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276 } |
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278 |
509 | 279 void * |
507 | 280 ngx_http_script_start_code(ngx_pool_t *pool, ngx_array_t **codes, size_t size) |
479 | 281 { |
507 | 282 if (*codes == NULL) { |
283 *codes = ngx_array_create(pool, 256, 1); | |
284 if (*codes == NULL) { | |
285 return NULL; | |
286 } | |
287 } | |
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288 |
507 | 289 return ngx_array_push_n(*codes, size); |
290 } | |
291 | |
509 | 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 } | |
507 | 315 |
479 | 316 |
507 | 317 size_t |
509 | 318 ngx_http_script_copy_len_code(ngx_http_script_engine_t *e) |
507 | 319 { |
320 ngx_http_script_copy_code_t *code; | |
479 | 321 |
509 | 322 code = (ngx_http_script_copy_code_t *) e->ip; |
507 | 323 |
509 | 324 e->ip += sizeof(ngx_http_script_copy_code_t); |
507 | 325 |
326 return code->len; | |
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327 } |
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329 |
507 | 330 void |
509 | 331 ngx_http_script_copy_code(ngx_http_script_engine_t *e) |
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332 { |
507 | 333 ngx_http_script_copy_code_t *code; |
334 | |
509 | 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 } | |
507 | 341 |
509 | 342 e->ip += sizeof(ngx_http_script_copy_code_t) |
343 + ((code->len + sizeof(uintptr_t) - 1) & ~(sizeof(uintptr_t) - 1)); | |
507 | 344 |
509 | 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 } | |
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349 } |
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350 |
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351 |
507 | 352 size_t |
509 | 353 ngx_http_script_copy_var_len_code(ngx_http_script_engine_t *e) |
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354 { |
507 | 355 ngx_http_variable_value_t *value; |
356 ngx_http_script_var_code_t *code; | |
357 | |
509 | 358 code = (ngx_http_script_var_code_t *) e->ip; |
507 | 359 |
509 | 360 e->ip += sizeof(ngx_http_script_var_code_t); |
507 | 361 |
509 | 362 value = ngx_http_get_indexed_variable(e->request, code->index); |
507 | 363 |
553 | 364 if (value && value != NGX_HTTP_VAR_NOT_FOUND) { |
365 return value->text.len; | |
507 | 366 } |
367 | |
553 | 368 return 0; |
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369 } |
479 | 370 |
371 | |
507 | 372 void |
509 | 373 ngx_http_script_copy_var_code(ngx_http_script_engine_t *e) |
479 | 374 { |
507 | 375 ngx_http_variable_value_t *value; |
376 ngx_http_script_var_code_t *code; | |
377 | |
509 | 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 | |
553 | 385 if (value && value != NGX_HTTP_VAR_NOT_FOUND) { |
386 e->pos = ngx_cpymem(e->pos, value->text.data, value->text.len); | |
509 | 387 |
553 | 388 if (e->log) { |
389 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, | |
390 e->request->connection->log, 0, | |
391 "http script var: \"%V\"", &e->buf); | |
392 } | |
509 | 393 } |
394 } | |
395 } | |
396 | |
397 | |
398 size_t | |
399 ngx_http_script_copy_capture_len_code(ngx_http_script_engine_t *e) | |
400 { | |
401 ngx_http_script_copy_capture_code_t *code; | |
402 | |
403 code = (ngx_http_script_copy_capture_code_t *) e->ip; | |
404 | |
405 e->ip += sizeof(ngx_http_script_copy_capture_code_t); | |
406 | |
515 | 407 if (code->n < e->ncaptures) { |
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]], | |
509 | 414 e->captures[code->n + 1] - e->captures[code->n], |
415 NGX_ESCAPE_ARGS); | |
515 | 416 } else { |
417 return e->captures[code->n + 1] - e->captures[code->n]; | |
418 } | |
509 | 419 } |
515 | 420 |
421 return 0; | |
509 | 422 } |
423 | |
424 | |
425 void | |
426 ngx_http_script_copy_capture_code(ngx_http_script_engine_t *e) | |
427 { | |
428 ngx_http_script_copy_capture_code_t *code; | |
429 | |
430 code = (ngx_http_script_copy_capture_code_t *) e->ip; | |
431 | |
432 e->ip += sizeof(ngx_http_script_copy_capture_code_t); | |
507 | 433 |
515 | 434 if (code->n < e->ncaptures) { |
435 if ((e->args || e->quote) | |
436 && (e->request->quoted_uri || e->request->plus_in_uri)) | |
437 { | |
438 e->pos = (u_char *) ngx_escape_uri(e->pos, | |
439 &e->line.data[e->captures[code->n]], | |
509 | 440 e->captures[code->n + 1] - e->captures[code->n], |
441 NGX_ESCAPE_ARGS); | |
515 | 442 } else { |
443 e->pos = ngx_cpymem(e->pos, | |
444 &e->line.data[e->captures[code->n]], | |
445 e->captures[code->n + 1] - e->captures[code->n]); | |
446 } | |
509 | 447 } |
448 | |
449 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
450 "http script capture: \"%V\"", &e->buf); | |
451 } | |
452 | |
453 | |
454 void | |
455 ngx_http_script_start_args_code(ngx_http_script_engine_t *e) | |
456 { | |
457 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
458 "http script args"); | |
459 | |
460 e->args = e->pos; | |
461 e->ip += sizeof(uintptr_t); | |
462 } | |
463 | |
464 | |
517 | 465 |
466 #if (NGX_PCRE) | |
467 | |
509 | 468 void |
469 ngx_http_script_regex_start_code(ngx_http_script_engine_t *e) | |
470 { | |
471 size_t len; | |
472 ngx_int_t rc; | |
473 ngx_uint_t n; | |
474 ngx_http_request_t *r; | |
475 ngx_http_script_engine_t le; | |
476 ngx_http_script_len_code_pt lcode; | |
477 ngx_http_script_regex_code_t *code; | |
478 | |
479 code = (ngx_http_script_regex_code_t *) e->ip; | |
480 | |
481 r = e->request; | |
482 | |
483 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
484 "http script regex: \"%V\"", &code->name); | |
485 | |
486 if (code->uri) { | |
515 | 487 e->line = r->uri; |
509 | 488 } else { |
489 e->sp--; | |
515 | 490 e->line = e->sp->text; |
509 | 491 } |
507 | 492 |
515 | 493 rc = ngx_regex_exec(code->regex, &e->line, e->captures, code->ncaptures); |
509 | 494 |
495 if (rc == NGX_REGEX_NO_MATCHED) { | |
496 if (e->log) { | |
497 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, | |
515 | 498 "\"%V\" does not match \"%V\"", |
499 &code->name, &e->line); | |
509 | 500 } |
501 | |
515 | 502 e->ncaptures = 0; |
503 | |
509 | 504 if (code->test) { |
505 e->sp->value = 0; | |
506 e->sp->text.len = 0; | |
507 e->sp->text.data = (u_char *) ""; | |
508 e->sp++; | |
509 | |
510 e->ip += sizeof(ngx_http_script_regex_code_t); | |
511 return; | |
512 } | |
513 | |
514 e->ip += code->next; | |
515 return; | |
516 } | |
517 | |
518 if (rc < 0) { | |
519 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, | |
520 ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"", | |
515 | 521 rc, &e->line, &code->name); |
509 | 522 |
523 e->ip = ngx_http_script_exit; | |
524 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
525 return; | |
526 } | |
527 | |
528 if (e->log) { | |
529 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, | |
515 | 530 "\"%V\" matches \"%V\"", &code->name, &e->line); |
509 | 531 } |
532 | |
515 | 533 e->ncaptures = code->ncaptures; |
534 | |
509 | 535 if (code->test) { |
536 e->sp->value = 1; | |
537 e->sp->text.len = 1; | |
538 e->sp->text.data = (u_char *) "1"; | |
539 e->sp++; | |
540 | |
541 e->ip += sizeof(ngx_http_script_regex_code_t); | |
542 return; | |
543 } | |
544 | |
545 if (code->status) { | |
546 e->status = code->status; | |
507 | 547 |
509 | 548 if (!code->redirect) { |
549 e->ip = ngx_http_script_exit; | |
550 return; | |
551 } | |
552 } | |
553 | |
554 if (code->uri) { | |
555 r->internal = 1; | |
556 r->valid_unparsed_uri = 0; | |
557 | |
558 if (code->break_cycle) { | |
559 r->valid_location = 0; | |
527 | 560 r->uri_changed = 0; |
509 | 561 |
562 } else { | |
563 r->uri_changed = 1; | |
564 } | |
565 } | |
566 | |
567 if (code->lengths == NULL) { | |
568 e->buf.len = code->size; | |
569 | |
570 if (code->uri) { | |
571 if (rc && (r->quoted_uri || r->plus_in_uri)) { | |
572 e->buf.len += 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, | |
573 NGX_ESCAPE_ARGS); | |
574 } | |
575 } | |
576 | |
577 for (n = 1; n < (ngx_uint_t) rc; n++) { | |
578 e->buf.len += e->captures[2 * n + 1] - e->captures[2 * n]; | |
579 } | |
580 | |
581 } else { | |
582 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
583 | |
584 le.ip = code->lengths->elts; | |
585 le.request = r; | |
586 le.captures = e->captures; | |
515 | 587 le.ncaptures = e->ncaptures; |
509 | 588 |
589 len = 1; /* reserve 1 byte for possible "?" */ | |
590 | |
591 while (*(uintptr_t *) le.ip) { | |
592 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
593 len += lcode(&le); | |
594 } | |
595 | |
596 e->buf.len = len; | |
597 } | |
598 | |
515 | 599 if (code->add_args && r->args.len) { |
509 | 600 e->buf.len += r->args.len + 1; |
601 } | |
602 | |
603 e->buf.data = ngx_palloc(r->pool, e->buf.len); | |
604 if (e->buf.data == NULL) { | |
605 e->ip = ngx_http_script_exit; | |
606 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
507 | 607 return; |
608 } | |
609 | |
509 | 610 e->quote = code->redirect; |
611 | |
612 e->pos = e->buf.data; | |
613 | |
614 e->ip += sizeof(ngx_http_script_regex_code_t); | |
615 } | |
616 | |
617 | |
618 void | |
619 ngx_http_script_regex_end_code(ngx_http_script_engine_t *e) | |
620 { | |
621 ngx_http_request_t *r; | |
622 ngx_http_script_regex_end_code_t *code; | |
623 | |
624 code = (ngx_http_script_regex_end_code_t *) e->ip; | |
625 | |
626 r = e->request; | |
627 | |
628 e->quote = 0; | |
629 | |
630 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
631 "http script regex end"); | |
632 | |
633 if (code->redirect) { | |
634 | |
635 if (code->add_args && r->args.len) { | |
636 *e->pos++ = (u_char) (code->args ? '&' : '?'); | |
637 e->pos = ngx_cpymem(e->pos, r->args.data, r->args.len); | |
638 } | |
639 | |
640 e->buf.len = e->pos - e->buf.data; | |
641 | |
642 if (e->log) { | |
643 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, | |
644 "rewritten redirect: \"%V\"", &e->buf); | |
645 } | |
646 | |
647 r->headers_out.location = ngx_list_push(&r->headers_out.headers); | |
648 if (r->headers_out.location == NULL) { | |
649 e->ip = ngx_http_script_exit; | |
650 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
651 return; | |
652 } | |
653 | |
654 r->headers_out.location->hash = 1; | |
655 r->headers_out.location->key.len = sizeof("Location") - 1; | |
656 r->headers_out.location->key.data = (u_char *) "Location"; | |
657 r->headers_out.location->value = e->buf; | |
658 | |
659 e->ip += sizeof(ngx_http_script_regex_end_code_t); | |
660 return; | |
661 } | |
662 | |
663 if (e->args) { | |
664 e->buf.len = e->args - e->buf.data; | |
665 | |
666 if (code->add_args && r->args.len) { | |
667 *e->pos++ = '&'; | |
668 e->pos = ngx_cpymem(e->pos, r->args.data, r->args.len); | |
669 } | |
670 | |
671 r->args.len = e->pos - e->args; | |
672 r->args.data = e->args; | |
673 | |
674 e->args = NULL; | |
675 | |
676 } else { | |
677 e->buf.len = e->pos - e->buf.data; | |
678 } | |
679 | |
680 if (e->log) { | |
681 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, | |
682 "rewritten data: \"%V\", args: \"%V\"", | |
683 &e->buf, &r->args); | |
684 } | |
685 | |
686 if (code->uri) { | |
687 r->uri = e->buf; | |
688 | |
535 | 689 if (r->uri.len == 0) { |
690 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
691 "the rewritten URI has a zero length"); | |
692 e->ip = ngx_http_script_exit; | |
693 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
694 return; | |
695 } | |
696 | |
509 | 697 if (ngx_http_set_exten(r) != NGX_OK) { |
698 e->ip = ngx_http_script_exit; | |
699 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
700 return; | |
701 } | |
702 } | |
703 | |
704 e->ip += sizeof(ngx_http_script_regex_end_code_t); | |
705 } | |
706 | |
517 | 707 #endif |
708 | |
509 | 709 |
710 void | |
711 ngx_http_script_return_code(ngx_http_script_engine_t *e) | |
712 { | |
713 ngx_http_script_return_code_t *code; | |
714 | |
715 code = (ngx_http_script_return_code_t *) e->ip; | |
716 | |
717 e->status = code->status; | |
718 | |
719 e->ip += sizeof(ngx_http_script_return_code_t) - sizeof(uintptr_t); | |
479 | 720 } |
509 | 721 |
722 | |
723 void | |
527 | 724 ngx_http_script_break_code(ngx_http_script_engine_t *e) |
725 { | |
726 e->request->uri_changed = 0; | |
727 | |
728 e->ip = ngx_http_script_exit; | |
729 } | |
730 | |
731 | |
732 void | |
509 | 733 ngx_http_script_if_code(ngx_http_script_engine_t *e) |
734 { | |
735 ngx_http_script_if_code_t *code; | |
736 | |
737 code = (ngx_http_script_if_code_t *) e->ip; | |
738 | |
739 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
740 "http script if"); | |
741 | |
742 e->sp--; | |
743 | |
744 if (e->sp->value) { | |
745 if (code->loc_conf) { | |
746 e->request->loc_conf = code->loc_conf; | |
535 | 747 ngx_http_update_location_config(e->request); |
509 | 748 } |
749 | |
750 e->ip += sizeof(ngx_http_script_if_code_t); | |
751 return; | |
752 } | |
753 | |
754 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
755 "http script if false"); | |
756 | |
757 e->ip += code->next; | |
758 } | |
759 | |
760 | |
761 void | |
515 | 762 ngx_http_script_complex_value_code(ngx_http_script_engine_t *e) |
763 { | |
764 size_t len; | |
765 ngx_http_script_engine_t le; | |
766 ngx_http_script_len_code_pt lcode; | |
767 ngx_http_script_complex_value_code_t *code; | |
768 | |
769 code = (ngx_http_script_complex_value_code_t *) e->ip; | |
770 | |
771 e->ip += sizeof(ngx_http_script_complex_value_code_t); | |
772 | |
773 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
774 "http script complex value"); | |
775 | |
776 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
777 | |
778 le.ip = code->lengths->elts; | |
779 le.request = e->request; | |
780 le.captures = e->captures; | |
781 le.ncaptures = e->ncaptures; | |
782 | |
783 for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) { | |
784 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
785 } | |
786 | |
787 e->buf.len = len; | |
788 e->buf.data = ngx_palloc(e->request->pool, len); | |
789 if (e->buf.data == NULL) { | |
790 e->ip = ngx_http_script_exit; | |
791 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
792 return; | |
793 } | |
794 | |
795 e->pos = e->buf.data; | |
796 | |
797 e->sp->value = 0; | |
798 e->sp->text = e->buf; | |
799 e->sp++; | |
800 } | |
801 | |
802 | |
803 void | |
509 | 804 ngx_http_script_value_code(ngx_http_script_engine_t *e) |
805 { | |
806 ngx_http_script_value_code_t *code; | |
807 | |
808 code = (ngx_http_script_value_code_t *) e->ip; | |
809 | |
810 e->ip += sizeof(ngx_http_script_value_code_t); | |
811 | |
812 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
813 "http script value"); | |
814 | |
815 e->sp->value = (ngx_uint_t) code->value; | |
816 e->sp->text.len = (size_t) code->text_len; | |
817 e->sp->text.data = (u_char *) code->text_data; | |
818 e->sp++; | |
819 } | |
820 | |
821 | |
822 void | |
823 ngx_http_script_set_var_code(ngx_http_script_engine_t *e) | |
824 { | |
825 ngx_http_request_t *r; | |
826 ngx_http_variable_value_t *value; | |
827 ngx_http_core_main_conf_t *cmcf; | |
828 ngx_http_script_var_code_t *code; | |
829 | |
830 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
831 "http script set var"); | |
832 | |
833 code = (ngx_http_script_var_code_t *) e->ip; | |
834 | |
835 e->ip += sizeof(ngx_http_script_var_code_t); | |
836 | |
837 r = e->request; | |
838 | |
839 if (r->variables == NULL) { | |
840 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
841 | |
842 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts | |
843 * sizeof(ngx_http_variable_value_t *)); | |
844 if (r->variables == NULL) { | |
845 e->ip = ngx_http_script_exit; | |
846 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
847 return; | |
848 } | |
849 } | |
850 | |
851 value = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t)); | |
852 if (value == NULL) { | |
853 e->ip = ngx_http_script_exit; | |
854 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
855 return; | |
856 } | |
857 | |
858 e->sp--; | |
859 | |
860 *value = *e->sp; | |
861 | |
862 r->variables[code->index] = value; | |
863 } | |
864 | |
865 | |
866 void | |
867 ngx_http_script_var_code(ngx_http_script_engine_t *e) | |
868 { | |
869 ngx_http_variable_value_t *value; | |
870 ngx_http_script_var_code_t *code; | |
871 | |
872 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
873 "http script var"); | |
874 | |
875 code = (ngx_http_script_var_code_t *) e->ip; | |
876 | |
877 e->ip += sizeof(ngx_http_script_var_code_t); | |
878 | |
879 value = ngx_http_get_indexed_variable(e->request, code->index); | |
880 | |
553 | 881 if (value && value != NGX_HTTP_VAR_NOT_FOUND) { |
882 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
883 "http script var: %ui, \"%V\"", value->value, &value->text); | |
884 *e->sp = *value; | |
509 | 885 e->sp++; |
886 | |
887 return; | |
888 } | |
889 | |
553 | 890 e->sp->value = 0; |
891 e->sp->text.len = 0; | |
892 e->sp->text.data = (u_char *) ""; | |
509 | 893 e->sp++; |
894 } | |
895 | |
896 | |
897 void | |
898 ngx_http_script_nop_code(ngx_http_script_engine_t *e) | |
899 { | |
900 e->ip += sizeof(uintptr_t); | |
901 } |