1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2014 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Rasmus Lerdorf <rasmus@lerdorf.on.ca> |
16 | Zeev Suraski <zeev@zend.com> |
17 +----------------------------------------------------------------------+
18 */
19
20 /* $Id$ */
21
22 #include <stdio.h>
23 #include "php.h"
24 #include "ext/standard/php_standard.h"
25 #include "ext/standard/credits.h"
26 #include "php_variables.h"
27 #include "php_globals.h"
28 #include "php_content_types.h"
29 #include "SAPI.h"
30 #include "php_logos.h"
31 #include "zend_globals.h"
32
33 /* for systems that need to override reading of environment variables */
34 void _php_import_environment_variables(zval *array_ptr TSRMLS_DC);
35 PHPAPI void (*php_import_environment_variables)(zval *array_ptr TSRMLS_DC) = _php_import_environment_variables;
36
php_register_variable(char * var,char * strval,zval * track_vars_array TSRMLS_DC)37 PHPAPI void php_register_variable(char *var, char *strval, zval *track_vars_array TSRMLS_DC)
38 {
39 php_register_variable_safe(var, strval, strlen(strval), track_vars_array TSRMLS_CC);
40 }
41
42 /* binary-safe version */
php_register_variable_safe(char * var,char * strval,int str_len,zval * track_vars_array TSRMLS_DC)43 PHPAPI void php_register_variable_safe(char *var, char *strval, int str_len, zval *track_vars_array TSRMLS_DC)
44 {
45 zval new_entry;
46 assert(strval != NULL);
47
48 /* Prepare value */
49 Z_STRLEN(new_entry) = str_len;
50 Z_STRVAL(new_entry) = estrndup(strval, Z_STRLEN(new_entry));
51 Z_TYPE(new_entry) = IS_STRING;
52
53 php_register_variable_ex(var, &new_entry, track_vars_array TSRMLS_CC);
54 }
55
php_register_variable_ex(char * var_name,zval * val,zval * track_vars_array TSRMLS_DC)56 PHPAPI void php_register_variable_ex(char *var_name, zval *val, zval *track_vars_array TSRMLS_DC)
57 {
58 char *p = NULL;
59 char *ip = NULL; /* index pointer */
60 char *index;
61 char *var, *var_orig;
62 int var_len, index_len;
63 zval *gpc_element, **gpc_element_p;
64 zend_bool is_array = 0;
65 HashTable *symtable1 = NULL;
66 ALLOCA_FLAG(use_heap)
67
68 assert(var_name != NULL);
69
70 if (track_vars_array) {
71 symtable1 = Z_ARRVAL_P(track_vars_array);
72 }
73
74 if (!symtable1) {
75 /* Nothing to do */
76 zval_dtor(val);
77 return;
78 }
79
80
81 /* ignore leading spaces in the variable name */
82 while (*var_name && *var_name==' ') {
83 var_name++;
84 }
85
86 /*
87 * Prepare variable name
88 */
89 var_len = strlen(var_name);
90 var = var_orig = do_alloca(var_len + 1, use_heap);
91 memcpy(var_orig, var_name, var_len + 1);
92
93 /* ensure that we don't have spaces or dots in the variable name (not binary safe) */
94 for (p = var; *p; p++) {
95 if (*p == ' ' || *p == '.') {
96 *p='_';
97 } else if (*p == '[') {
98 is_array = 1;
99 ip = p;
100 *p = 0;
101 break;
102 }
103 }
104 var_len = p - var;
105
106 if (var_len==0) { /* empty variable name, or variable name with a space in it */
107 zval_dtor(val);
108 free_alloca(var_orig, use_heap);
109 return;
110 }
111
112 /* GLOBALS hijack attempt, reject parameter */
113 if (symtable1 == EG(active_symbol_table) &&
114 var_len == sizeof("GLOBALS")-1 &&
115 !memcmp(var, "GLOBALS", sizeof("GLOBALS")-1)) {
116 zval_dtor(val);
117 free_alloca(var_orig, use_heap);
118 return;
119 }
120
121 index = var;
122 index_len = var_len;
123
124 if (is_array) {
125 int nest_level = 0;
126 while (1) {
127 char *index_s;
128 int new_idx_len = 0;
129
130 if(++nest_level > PG(max_input_nesting_level)) {
131 HashTable *ht;
132 /* too many levels of nesting */
133
134 if (track_vars_array) {
135 ht = Z_ARRVAL_P(track_vars_array);
136 zend_symtable_del(ht, var, var_len + 1);
137 }
138
139 zval_dtor(val);
140
141 /* do not output the error message to the screen,
142 this helps us to to avoid "information disclosure" */
143 if (!PG(display_errors)) {
144 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Input variable nesting level exceeded %ld. To increase the limit change max_input_nesting_level in php.ini.", PG(max_input_nesting_level));
145 }
146 free_alloca(var_orig, use_heap);
147 return;
148 }
149
150 ip++;
151 index_s = ip;
152 if (isspace(*ip)) {
153 ip++;
154 }
155 if (*ip==']') {
156 index_s = NULL;
157 } else {
158 ip = strchr(ip, ']');
159 if (!ip) {
160 /* PHP variables cannot contain '[' in their names, so we replace the character with a '_' */
161 *(index_s - 1) = '_';
162
163 index_len = 0;
164 if (index) {
165 index_len = strlen(index);
166 }
167 goto plain_var;
168 return;
169 }
170 *ip = 0;
171 new_idx_len = strlen(index_s);
172 }
173
174 if (!index) {
175 MAKE_STD_ZVAL(gpc_element);
176 array_init(gpc_element);
177 if (zend_hash_next_index_insert(symtable1, &gpc_element, sizeof(zval *), (void **) &gpc_element_p) == FAILURE) {
178 zval_ptr_dtor(&gpc_element);
179 zval_dtor(val);
180 free_alloca(var_orig, use_heap);
181 return;
182 }
183 } else {
184 if (zend_symtable_find(symtable1, index, index_len + 1, (void **) &gpc_element_p) == FAILURE
185 || Z_TYPE_PP(gpc_element_p) != IS_ARRAY) {
186 MAKE_STD_ZVAL(gpc_element);
187 array_init(gpc_element);
188 zend_symtable_update(symtable1, index, index_len + 1, &gpc_element, sizeof(zval *), (void **) &gpc_element_p);
189 }
190 }
191 symtable1 = Z_ARRVAL_PP(gpc_element_p);
192 /* ip pointed to the '[' character, now obtain the key */
193 index = index_s;
194 index_len = new_idx_len;
195
196 ip++;
197 if (*ip == '[') {
198 is_array = 1;
199 *ip = 0;
200 } else {
201 goto plain_var;
202 }
203 }
204 } else {
205 plain_var:
206 MAKE_STD_ZVAL(gpc_element);
207 gpc_element->value = val->value;
208 Z_TYPE_P(gpc_element) = Z_TYPE_P(val);
209 if (!index) {
210 if (zend_hash_next_index_insert(symtable1, &gpc_element, sizeof(zval *), (void **) &gpc_element_p) == FAILURE) {
211 zval_ptr_dtor(&gpc_element);
212 }
213 } else {
214 /*
215 * According to rfc2965, more specific paths are listed above the less specific ones.
216 * If we encounter a duplicate cookie name, we should skip it, since it is not possible
217 * to have the same (plain text) cookie name for the same path and we should not overwrite
218 * more specific cookies with the less specific ones.
219 */
220 if (PG(http_globals)[TRACK_VARS_COOKIE] &&
221 symtable1 == Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_COOKIE]) &&
222 zend_symtable_exists(symtable1, index, index_len + 1)) {
223 zval_ptr_dtor(&gpc_element);
224 } else {
225 zend_symtable_update(symtable1, index, index_len + 1, &gpc_element, sizeof(zval *), (void **) &gpc_element_p);
226 }
227 }
228 }
229 free_alloca(var_orig, use_heap);
230 }
231
SAPI_POST_HANDLER_FUNC(php_std_post_handler)232 SAPI_API SAPI_POST_HANDLER_FUNC(php_std_post_handler)
233 {
234 char *var, *val, *e, *s, *p;
235 zval *array_ptr = (zval *) arg;
236 long count = 0;
237
238 if (SG(request_info).post_data == NULL) {
239 return;
240 }
241
242 s = SG(request_info).post_data;
243 e = s + SG(request_info).post_data_length;
244
245 while (s < e && (p = memchr(s, '&', (e - s)))) {
246 last_value:
247 if ((val = memchr(s, '=', (p - s)))) { /* have a value */
248 unsigned int val_len, new_val_len;
249
250 if (++count > PG(max_input_vars)) {
251 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Input variables exceeded %ld. To increase the limit change max_input_vars in php.ini.", PG(max_input_vars));
252 return;
253 }
254 var = s;
255
256 php_url_decode(var, (val - s));
257 val++;
258 val_len = php_url_decode(val, (p - val));
259 val = estrndup(val, val_len);
260 if (sapi_module.input_filter(PARSE_POST, var, &val, val_len, &new_val_len TSRMLS_CC)) {
261 php_register_variable_safe(var, val, new_val_len, array_ptr TSRMLS_CC);
262 }
263 efree(val);
264 }
265 s = p + 1;
266 }
267 if (s < e) {
268 p = e;
269 goto last_value;
270 }
271 }
272
SAPI_INPUT_FILTER_FUNC(php_default_input_filter)273 SAPI_API SAPI_INPUT_FILTER_FUNC(php_default_input_filter)
274 {
275 /* TODO: check .ini setting here and apply user-defined input filter */
276 if(new_val_len) *new_val_len = val_len;
277 return 1;
278 }
279
SAPI_TREAT_DATA_FUNC(php_default_treat_data)280 SAPI_API SAPI_TREAT_DATA_FUNC(php_default_treat_data)
281 {
282 char *res = NULL, *var, *val, *separator = NULL;
283 const char *c_var;
284 zval *array_ptr;
285 int free_buffer = 0;
286 char *strtok_buf = NULL;
287 long count = 0;
288
289 switch (arg) {
290 case PARSE_POST:
291 case PARSE_GET:
292 case PARSE_COOKIE:
293 ALLOC_ZVAL(array_ptr);
294 array_init(array_ptr);
295 INIT_PZVAL(array_ptr);
296 switch (arg) {
297 case PARSE_POST:
298 if (PG(http_globals)[TRACK_VARS_POST]) {
299 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_POST]);
300 }
301 PG(http_globals)[TRACK_VARS_POST] = array_ptr;
302 break;
303 case PARSE_GET:
304 if (PG(http_globals)[TRACK_VARS_GET]) {
305 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_GET]);
306 }
307 PG(http_globals)[TRACK_VARS_GET] = array_ptr;
308 break;
309 case PARSE_COOKIE:
310 if (PG(http_globals)[TRACK_VARS_COOKIE]) {
311 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_COOKIE]);
312 }
313 PG(http_globals)[TRACK_VARS_COOKIE] = array_ptr;
314 break;
315 }
316 break;
317 default:
318 array_ptr = destArray;
319 break;
320 }
321
322 if (arg == PARSE_POST) {
323 sapi_handle_post(array_ptr TSRMLS_CC);
324 return;
325 }
326
327 if (arg == PARSE_GET) { /* GET data */
328 c_var = SG(request_info).query_string;
329 if (c_var && *c_var) {
330 res = (char *) estrdup(c_var);
331 free_buffer = 1;
332 } else {
333 free_buffer = 0;
334 }
335 } else if (arg == PARSE_COOKIE) { /* Cookie data */
336 c_var = SG(request_info).cookie_data;
337 if (c_var && *c_var) {
338 res = (char *) estrdup(c_var);
339 free_buffer = 1;
340 } else {
341 free_buffer = 0;
342 }
343 } else if (arg == PARSE_STRING) { /* String data */
344 res = str;
345 free_buffer = 1;
346 }
347
348 if (!res) {
349 return;
350 }
351
352 switch (arg) {
353 case PARSE_GET:
354 case PARSE_STRING:
355 separator = (char *) estrdup(PG(arg_separator).input);
356 break;
357 case PARSE_COOKIE:
358 separator = ";\0";
359 break;
360 }
361
362 var = php_strtok_r(res, separator, &strtok_buf);
363
364 while (var) {
365 val = strchr(var, '=');
366
367 if (arg == PARSE_COOKIE) {
368 /* Remove leading spaces from cookie names, needed for multi-cookie header where ; can be followed by a space */
369 while (isspace(*var)) {
370 var++;
371 }
372 if (var == val || *var == '\0') {
373 goto next_cookie;
374 }
375 }
376
377 if (++count > PG(max_input_vars)) {
378 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Input variables exceeded %ld. To increase the limit change max_input_vars in php.ini.", PG(max_input_vars));
379 break;
380 }
381
382 if (val) { /* have a value */
383 int val_len;
384 unsigned int new_val_len;
385
386 *val++ = '\0';
387 php_url_decode(var, strlen(var));
388 val_len = php_url_decode(val, strlen(val));
389 val = estrndup(val, val_len);
390 if (sapi_module.input_filter(arg, var, &val, val_len, &new_val_len TSRMLS_CC)) {
391 php_register_variable_safe(var, val, new_val_len, array_ptr TSRMLS_CC);
392 }
393 efree(val);
394 } else {
395 int val_len;
396 unsigned int new_val_len;
397
398 php_url_decode(var, strlen(var));
399 val_len = 0;
400 val = estrndup("", val_len);
401 if (sapi_module.input_filter(arg, var, &val, val_len, &new_val_len TSRMLS_CC)) {
402 php_register_variable_safe(var, val, new_val_len, array_ptr TSRMLS_CC);
403 }
404 efree(val);
405 }
406 next_cookie:
407 var = php_strtok_r(NULL, separator, &strtok_buf);
408 }
409
410 if (arg != PARSE_COOKIE) {
411 efree(separator);
412 }
413
414 if (free_buffer) {
415 efree(res);
416 }
417 }
418
_php_import_environment_variables(zval * array_ptr TSRMLS_DC)419 void _php_import_environment_variables(zval *array_ptr TSRMLS_DC)
420 {
421 char buf[128];
422 char **env, *p, *t = buf;
423 size_t alloc_size = sizeof(buf);
424 unsigned long nlen; /* ptrdiff_t is not portable */
425
426 for (env = environ; env != NULL && *env != NULL; env++) {
427 p = strchr(*env, '=');
428 if (!p) { /* malformed entry? */
429 continue;
430 }
431 nlen = p - *env;
432 if (nlen >= alloc_size) {
433 alloc_size = nlen + 64;
434 t = (t == buf ? emalloc(alloc_size): erealloc(t, alloc_size));
435 }
436 memcpy(t, *env, nlen);
437 t[nlen] = '\0';
438 php_register_variable(t, p + 1, array_ptr TSRMLS_CC);
439 }
440 if (t != buf && t != NULL) {
441 efree(t);
442 }
443 }
444
php_std_auto_global_callback(char * name,uint name_len TSRMLS_DC)445 zend_bool php_std_auto_global_callback(char *name, uint name_len TSRMLS_DC)
446 {
447 zend_printf("%s\n", name);
448 return 0; /* don't rearm */
449 }
450
451 /* {{{ php_build_argv
452 */
php_build_argv(char * s,zval * track_vars_array TSRMLS_DC)453 static void php_build_argv(char *s, zval *track_vars_array TSRMLS_DC)
454 {
455 zval *arr, *argc, *tmp;
456 int count = 0;
457 char *ss, *space;
458
459 if (!(SG(request_info).argc || track_vars_array)) {
460 return;
461 }
462
463 ALLOC_INIT_ZVAL(arr);
464 array_init(arr);
465
466 /* Prepare argv */
467 if (SG(request_info).argc) { /* are we in cli sapi? */
468 int i;
469 for (i = 0; i < SG(request_info).argc; i++) {
470 ALLOC_ZVAL(tmp);
471 Z_TYPE_P(tmp) = IS_STRING;
472 Z_STRLEN_P(tmp) = strlen(SG(request_info).argv[i]);
473 Z_STRVAL_P(tmp) = estrndup(SG(request_info).argv[i], Z_STRLEN_P(tmp));
474 INIT_PZVAL(tmp);
475 if (zend_hash_next_index_insert(Z_ARRVAL_P(arr), &tmp, sizeof(zval *), NULL) == FAILURE) {
476 if (Z_TYPE_P(tmp) == IS_STRING) {
477 efree(Z_STRVAL_P(tmp));
478 }
479 }
480 }
481 } else if (s && *s) {
482 ss = s;
483 while (ss) {
484 space = strchr(ss, '+');
485 if (space) {
486 *space = '\0';
487 }
488 /* auto-type */
489 ALLOC_ZVAL(tmp);
490 Z_TYPE_P(tmp) = IS_STRING;
491 Z_STRLEN_P(tmp) = strlen(ss);
492 Z_STRVAL_P(tmp) = estrndup(ss, Z_STRLEN_P(tmp));
493 INIT_PZVAL(tmp);
494 count++;
495 if (zend_hash_next_index_insert(Z_ARRVAL_P(arr), &tmp, sizeof(zval *), NULL) == FAILURE) {
496 if (Z_TYPE_P(tmp) == IS_STRING) {
497 efree(Z_STRVAL_P(tmp));
498 }
499 }
500 if (space) {
501 *space = '+';
502 ss = space + 1;
503 } else {
504 ss = space;
505 }
506 }
507 }
508
509 /* prepare argc */
510 ALLOC_INIT_ZVAL(argc);
511 if (SG(request_info).argc) {
512 Z_LVAL_P(argc) = SG(request_info).argc;
513 } else {
514 Z_LVAL_P(argc) = count;
515 }
516 Z_TYPE_P(argc) = IS_LONG;
517
518 if (SG(request_info).argc) {
519 Z_ADDREF_P(arr);
520 Z_ADDREF_P(argc);
521 zend_hash_update(&EG(symbol_table), "argv", sizeof("argv"), &arr, sizeof(zval *), NULL);
522 zend_hash_update(&EG(symbol_table), "argc", sizeof("argc"), &argc, sizeof(zval *), NULL);
523 }
524 if (track_vars_array) {
525 Z_ADDREF_P(arr);
526 Z_ADDREF_P(argc);
527 zend_hash_update(Z_ARRVAL_P(track_vars_array), "argv", sizeof("argv"), &arr, sizeof(zval *), NULL);
528 zend_hash_update(Z_ARRVAL_P(track_vars_array), "argc", sizeof("argc"), &argc, sizeof(zval *), NULL);
529 }
530 zval_ptr_dtor(&arr);
531 zval_ptr_dtor(&argc);
532 }
533 /* }}} */
534
535 /* {{{ php_handle_special_queries
536 */
php_handle_special_queries(TSRMLS_D)537 PHPAPI int php_handle_special_queries(TSRMLS_D)
538 {
539 if (PG(expose_php) && SG(request_info).query_string && SG(request_info).query_string[0] == '=') {
540 if (php_info_logos(SG(request_info).query_string + 1 TSRMLS_CC)) {
541 return 1;
542 } else if (!strcmp(SG(request_info).query_string + 1, PHP_CREDITS_GUID)) {
543 php_print_credits(PHP_CREDITS_ALL TSRMLS_CC);
544 return 1;
545 }
546 }
547 return 0;
548 }
549 /* }}} */
550
551 /* {{{ php_register_server_variables
552 */
php_register_server_variables(TSRMLS_D)553 static inline void php_register_server_variables(TSRMLS_D)
554 {
555 zval *array_ptr = NULL;
556
557 ALLOC_ZVAL(array_ptr);
558 array_init(array_ptr);
559 INIT_PZVAL(array_ptr);
560 if (PG(http_globals)[TRACK_VARS_SERVER]) {
561 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_SERVER]);
562 }
563 PG(http_globals)[TRACK_VARS_SERVER] = array_ptr;
564
565 /* Server variables */
566 if (sapi_module.register_server_variables) {
567 sapi_module.register_server_variables(array_ptr TSRMLS_CC);
568 }
569
570 /* PHP Authentication support */
571 if (SG(request_info).auth_user) {
572 php_register_variable("PHP_AUTH_USER", SG(request_info).auth_user, array_ptr TSRMLS_CC);
573 }
574 if (SG(request_info).auth_password) {
575 php_register_variable("PHP_AUTH_PW", SG(request_info).auth_password, array_ptr TSRMLS_CC);
576 }
577 if (SG(request_info).auth_digest) {
578 php_register_variable("PHP_AUTH_DIGEST", SG(request_info).auth_digest, array_ptr TSRMLS_CC);
579 }
580 /* store request init time */
581 {
582 zval request_time_float, request_time_long;
583 Z_TYPE(request_time_float) = IS_DOUBLE;
584 Z_DVAL(request_time_float) = sapi_get_request_time(TSRMLS_C);
585 php_register_variable_ex("REQUEST_TIME_FLOAT", &request_time_float, array_ptr TSRMLS_CC);
586 Z_TYPE(request_time_long) = IS_LONG;
587 Z_LVAL(request_time_long) = zend_dval_to_lval(Z_DVAL(request_time_float));
588 php_register_variable_ex("REQUEST_TIME", &request_time_long, array_ptr TSRMLS_CC);
589 }
590
591 }
592 /* }}} */
593
594 /* {{{ php_autoglobal_merge
595 */
php_autoglobal_merge(HashTable * dest,HashTable * src TSRMLS_DC)596 static void php_autoglobal_merge(HashTable *dest, HashTable *src TSRMLS_DC)
597 {
598 zval **src_entry, **dest_entry;
599 char *string_key;
600 uint string_key_len;
601 ulong num_key;
602 HashPosition pos;
603 int key_type;
604 int globals_check = (dest == (&EG(symbol_table)));
605
606 zend_hash_internal_pointer_reset_ex(src, &pos);
607 while (zend_hash_get_current_data_ex(src, (void **)&src_entry, &pos) == SUCCESS) {
608 key_type = zend_hash_get_current_key_ex(src, &string_key, &string_key_len, &num_key, 0, &pos);
609 if (Z_TYPE_PP(src_entry) != IS_ARRAY
610 || (key_type == HASH_KEY_IS_STRING && zend_hash_find(dest, string_key, string_key_len, (void **) &dest_entry) != SUCCESS)
611 || (key_type == HASH_KEY_IS_LONG && zend_hash_index_find(dest, num_key, (void **)&dest_entry) != SUCCESS)
612 || Z_TYPE_PP(dest_entry) != IS_ARRAY
613 ) {
614 Z_ADDREF_PP(src_entry);
615 if (key_type == HASH_KEY_IS_STRING) {
616 if (!globals_check || string_key_len != sizeof("GLOBALS") || memcmp(string_key, "GLOBALS", sizeof("GLOBALS") - 1)) {
617 zend_hash_update(dest, string_key, string_key_len, src_entry, sizeof(zval *), NULL);
618 } else {
619 Z_DELREF_PP(src_entry);
620 }
621 } else {
622 zend_hash_index_update(dest, num_key, src_entry, sizeof(zval *), NULL);
623 }
624 } else {
625 SEPARATE_ZVAL(dest_entry);
626 php_autoglobal_merge(Z_ARRVAL_PP(dest_entry), Z_ARRVAL_PP(src_entry) TSRMLS_CC);
627 }
628 zend_hash_move_forward_ex(src, &pos);
629 }
630 }
631 /* }}} */
632
633 static zend_bool php_auto_globals_create_server(const char *name, uint name_len TSRMLS_DC);
634 static zend_bool php_auto_globals_create_env(const char *name, uint name_len TSRMLS_DC);
635 static zend_bool php_auto_globals_create_request(const char *name, uint name_len TSRMLS_DC);
636
637 /* {{{ php_hash_environment
638 */
php_hash_environment(TSRMLS_D)639 PHPAPI int php_hash_environment(TSRMLS_D)
640 {
641 memset(PG(http_globals), 0, sizeof(PG(http_globals)));
642 zend_activate_auto_globals(TSRMLS_C);
643 if (PG(register_argc_argv)) {
644 php_build_argv(SG(request_info).query_string, PG(http_globals)[TRACK_VARS_SERVER] TSRMLS_CC);
645 }
646 return SUCCESS;
647 }
648 /* }}} */
649
php_auto_globals_create_get(const char * name,uint name_len TSRMLS_DC)650 static zend_bool php_auto_globals_create_get(const char *name, uint name_len TSRMLS_DC)
651 {
652 zval *vars;
653
654 if (PG(variables_order) && (strchr(PG(variables_order),'G') || strchr(PG(variables_order),'g'))) {
655 sapi_module.treat_data(PARSE_GET, NULL, NULL TSRMLS_CC);
656 vars = PG(http_globals)[TRACK_VARS_GET];
657 } else {
658 ALLOC_ZVAL(vars);
659 array_init(vars);
660 INIT_PZVAL(vars);
661 if (PG(http_globals)[TRACK_VARS_GET]) {
662 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_GET]);
663 }
664 PG(http_globals)[TRACK_VARS_GET] = vars;
665 }
666
667 zend_hash_update(&EG(symbol_table), name, name_len + 1, &vars, sizeof(zval *), NULL);
668 Z_ADDREF_P(vars);
669
670 return 0; /* don't rearm */
671 }
672
php_auto_globals_create_post(const char * name,uint name_len TSRMLS_DC)673 static zend_bool php_auto_globals_create_post(const char *name, uint name_len TSRMLS_DC)
674 {
675 zval *vars;
676
677 if (PG(variables_order) &&
678 (strchr(PG(variables_order),'P') || strchr(PG(variables_order),'p')) &&
679 !SG(headers_sent) &&
680 SG(request_info).request_method &&
681 !strcasecmp(SG(request_info).request_method, "POST")) {
682 sapi_module.treat_data(PARSE_POST, NULL, NULL TSRMLS_CC);
683 vars = PG(http_globals)[TRACK_VARS_POST];
684 } else {
685 ALLOC_ZVAL(vars);
686 array_init(vars);
687 INIT_PZVAL(vars);
688 if (PG(http_globals)[TRACK_VARS_POST]) {
689 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_POST]);
690 }
691 PG(http_globals)[TRACK_VARS_POST] = vars;
692 }
693
694 zend_hash_update(&EG(symbol_table), name, name_len + 1, &vars, sizeof(zval *), NULL);
695 Z_ADDREF_P(vars);
696
697 return 0; /* don't rearm */
698 }
699
php_auto_globals_create_cookie(const char * name,uint name_len TSRMLS_DC)700 static zend_bool php_auto_globals_create_cookie(const char *name, uint name_len TSRMLS_DC)
701 {
702 zval *vars;
703
704 if (PG(variables_order) && (strchr(PG(variables_order),'C') || strchr(PG(variables_order),'c'))) {
705 sapi_module.treat_data(PARSE_COOKIE, NULL, NULL TSRMLS_CC);
706 vars = PG(http_globals)[TRACK_VARS_COOKIE];
707 } else {
708 ALLOC_ZVAL(vars);
709 array_init(vars);
710 INIT_PZVAL(vars);
711 if (PG(http_globals)[TRACK_VARS_COOKIE]) {
712 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_COOKIE]);
713 }
714 PG(http_globals)[TRACK_VARS_COOKIE] = vars;
715 }
716
717 zend_hash_update(&EG(symbol_table), name, name_len + 1, &vars, sizeof(zval *), NULL);
718 Z_ADDREF_P(vars);
719
720 return 0; /* don't rearm */
721 }
722
php_auto_globals_create_files(const char * name,uint name_len TSRMLS_DC)723 static zend_bool php_auto_globals_create_files(const char *name, uint name_len TSRMLS_DC)
724 {
725 zval *vars;
726
727 if (PG(http_globals)[TRACK_VARS_FILES]) {
728 vars = PG(http_globals)[TRACK_VARS_FILES];
729 } else {
730 ALLOC_ZVAL(vars);
731 array_init(vars);
732 INIT_PZVAL(vars);
733 PG(http_globals)[TRACK_VARS_FILES] = vars;
734 }
735
736 zend_hash_update(&EG(symbol_table), name, name_len + 1, &vars, sizeof(zval *), NULL);
737 Z_ADDREF_P(vars);
738
739 return 0; /* don't rearm */
740 }
741
php_auto_globals_create_server(const char * name,uint name_len TSRMLS_DC)742 static zend_bool php_auto_globals_create_server(const char *name, uint name_len TSRMLS_DC)
743 {
744 if (PG(variables_order) && (strchr(PG(variables_order),'S') || strchr(PG(variables_order),'s'))) {
745 php_register_server_variables(TSRMLS_C);
746
747 if (PG(register_argc_argv)) {
748 if (SG(request_info).argc) {
749 zval **argc, **argv;
750
751 if (zend_hash_find(&EG(symbol_table), "argc", sizeof("argc"), (void**)&argc) == SUCCESS &&
752 zend_hash_find(&EG(symbol_table), "argv", sizeof("argv"), (void**)&argv) == SUCCESS) {
753 Z_ADDREF_PP(argc);
754 Z_ADDREF_PP(argv);
755 zend_hash_update(Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_SERVER]), "argv", sizeof("argv"), argv, sizeof(zval *), NULL);
756 zend_hash_update(Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_SERVER]), "argc", sizeof("argc"), argc, sizeof(zval *), NULL);
757 }
758 } else {
759 php_build_argv(SG(request_info).query_string, PG(http_globals)[TRACK_VARS_SERVER] TSRMLS_CC);
760 }
761 }
762
763 } else {
764 zval *server_vars=NULL;
765 ALLOC_ZVAL(server_vars);
766 array_init(server_vars);
767 INIT_PZVAL(server_vars);
768 if (PG(http_globals)[TRACK_VARS_SERVER]) {
769 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_SERVER]);
770 }
771 PG(http_globals)[TRACK_VARS_SERVER] = server_vars;
772 }
773
774 zend_hash_update(&EG(symbol_table), name, name_len + 1, &PG(http_globals)[TRACK_VARS_SERVER], sizeof(zval *), NULL);
775 Z_ADDREF_P(PG(http_globals)[TRACK_VARS_SERVER]);
776
777 return 0; /* don't rearm */
778 }
779
php_auto_globals_create_env(const char * name,uint name_len TSRMLS_DC)780 static zend_bool php_auto_globals_create_env(const char *name, uint name_len TSRMLS_DC)
781 {
782 zval *env_vars = NULL;
783 ALLOC_ZVAL(env_vars);
784 array_init(env_vars);
785 INIT_PZVAL(env_vars);
786 if (PG(http_globals)[TRACK_VARS_ENV]) {
787 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_ENV]);
788 }
789 PG(http_globals)[TRACK_VARS_ENV] = env_vars;
790
791 if (PG(variables_order) && (strchr(PG(variables_order),'E') || strchr(PG(variables_order),'e'))) {
792 php_import_environment_variables(PG(http_globals)[TRACK_VARS_ENV] TSRMLS_CC);
793 }
794
795 zend_hash_update(&EG(symbol_table), name, name_len + 1, &PG(http_globals)[TRACK_VARS_ENV], sizeof(zval *), NULL);
796 Z_ADDREF_P(PG(http_globals)[TRACK_VARS_ENV]);
797
798 return 0; /* don't rearm */
799 }
800
php_auto_globals_create_request(const char * name,uint name_len TSRMLS_DC)801 static zend_bool php_auto_globals_create_request(const char *name, uint name_len TSRMLS_DC)
802 {
803 zval *form_variables;
804 unsigned char _gpc_flags[3] = {0, 0, 0};
805 char *p;
806
807 ALLOC_ZVAL(form_variables);
808 array_init(form_variables);
809 INIT_PZVAL(form_variables);
810
811 if (PG(request_order) != NULL) {
812 p = PG(request_order);
813 } else {
814 p = PG(variables_order);
815 }
816
817 for (; p && *p; p++) {
818 switch (*p) {
819 case 'g':
820 case 'G':
821 if (!_gpc_flags[0]) {
822 php_autoglobal_merge(Z_ARRVAL_P(form_variables), Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_GET]) TSRMLS_CC);
823 _gpc_flags[0] = 1;
824 }
825 break;
826 case 'p':
827 case 'P':
828 if (!_gpc_flags[1]) {
829 php_autoglobal_merge(Z_ARRVAL_P(form_variables), Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_POST]) TSRMLS_CC);
830 _gpc_flags[1] = 1;
831 }
832 break;
833 case 'c':
834 case 'C':
835 if (!_gpc_flags[2]) {
836 php_autoglobal_merge(Z_ARRVAL_P(form_variables), Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_COOKIE]) TSRMLS_CC);
837 _gpc_flags[2] = 1;
838 }
839 break;
840 }
841 }
842
843 zend_hash_update(&EG(symbol_table), name, name_len + 1, &form_variables, sizeof(zval *), NULL);
844 return 0;
845 }
846
php_startup_auto_globals(TSRMLS_D)847 void php_startup_auto_globals(TSRMLS_D)
848 {
849 zend_register_auto_global(ZEND_STRL("_GET"), 0, php_auto_globals_create_get TSRMLS_CC);
850 zend_register_auto_global(ZEND_STRL("_POST"), 0, php_auto_globals_create_post TSRMLS_CC);
851 zend_register_auto_global(ZEND_STRL("_COOKIE"), 0, php_auto_globals_create_cookie TSRMLS_CC);
852 zend_register_auto_global(ZEND_STRL("_SERVER"), PG(auto_globals_jit), php_auto_globals_create_server TSRMLS_CC);
853 zend_register_auto_global(ZEND_STRL("_ENV"), PG(auto_globals_jit), php_auto_globals_create_env TSRMLS_CC);
854 zend_register_auto_global(ZEND_STRL("_REQUEST"), PG(auto_globals_jit), php_auto_globals_create_request TSRMLS_CC);
855 zend_register_auto_global(ZEND_STRL("_FILES"), 0, php_auto_globals_create_files TSRMLS_CC);
856 }
857
858 /*
859 * Local variables:
860 * tab-width: 4
861 * c-basic-offset: 4
862 * End:
863 * vim600: sw=4 ts=4 fdm=marker
864 * vim<600: sw=4 ts=4
865 */
866
