1/*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2015 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 "ext/standard/php_smart_str.h"
27#include "php_variables.h"
28#include "php_globals.h"
29#include "php_content_types.h"
30#include "SAPI.h"
31#include "zend_globals.h"
32#ifdef PHP_WIN32
33# include "win32/php_inttypes.h"
34#endif
35
36/* for systems that need to override reading of environment variables */
37void _php_import_environment_variables(zval *array_ptr TSRMLS_DC);
38PHPAPI void (*php_import_environment_variables)(zval *array_ptr TSRMLS_DC) = _php_import_environment_variables;
39
40PHPAPI void php_register_variable(char *var, char *strval, zval *track_vars_array TSRMLS_DC)
41{
42 php_register_variable_safe(var, strval, strlen(strval), track_vars_array TSRMLS_CC);
43}
44
45/* binary-safe version */
46PHPAPI void php_register_variable_safe(char *var, char *strval, int str_len, zval *track_vars_array TSRMLS_DC)
47{
48 zval new_entry;
49 assert(strval != NULL);
50
51 /* Prepare value */
52 Z_STRLEN(new_entry) = str_len;
53 Z_STRVAL(new_entry) = estrndup(strval, Z_STRLEN(new_entry));
54 Z_TYPE(new_entry) = IS_STRING;
55
56 php_register_variable_ex(var, &new_entry, track_vars_array TSRMLS_CC);
57}
58
59PHPAPI void php_register_variable_ex(char *var_name, zval *val, zval *track_vars_array TSRMLS_DC)
60{
61 char *p = NULL;
62 char *ip = NULL; /* index pointer */
63 char *index;
64 char *var, *var_orig;
65 int var_len, index_len;
66 zval *gpc_element, **gpc_element_p;
67 zend_bool is_array = 0;
68 HashTable *symtable1 = NULL;
69 ALLOCA_FLAG(use_heap)
70
71 assert(var_name != NULL);
72
73 if (track_vars_array) {
74 symtable1 = Z_ARRVAL_P(track_vars_array);
75 }
76
77 if (!symtable1) {
78 /* Nothing to do */
79 zval_dtor(val);
80 return;
81 }
82
83
84 /* ignore leading spaces in the variable name */
85 while (*var_name && *var_name==' ') {
86 var_name++;
87 }
88
89 /*
90 * Prepare variable name
91 */
92 var_len = strlen(var_name);
93 var = var_orig = do_alloca(var_len + 1, use_heap);
94 memcpy(var_orig, var_name, var_len + 1);
95
96 /* ensure that we don't have spaces or dots in the variable name (not binary safe) */
97 for (p = var; *p; p++) {
98 if (*p == ' ' || *p == '.') {
99 *p='_';
100 } else if (*p == '[') {
101 is_array = 1;
102 ip = p;
103 *p = 0;
104 break;
105 }
106 }
107 var_len = p - var;
108
109 if (var_len==0) { /* empty variable name, or variable name with a space in it */
110 zval_dtor(val);
111 free_alloca(var_orig, use_heap);
112 return;
113 }
114
115 /* GLOBALS hijack attempt, reject parameter */
116 if (symtable1 == EG(active_symbol_table) &&
117 var_len == sizeof("GLOBALS")-1 &&
118 !memcmp(var, "GLOBALS", sizeof("GLOBALS")-1)) {
119 zval_dtor(val);
120 free_alloca(var_orig, use_heap);
121 return;
122 }
123
124 index = var;
125 index_len = var_len;
126
127 if (is_array) {
128 int nest_level = 0;
129 while (1) {
130 char *index_s;
131 int new_idx_len = 0;
132
133 if(++nest_level > PG(max_input_nesting_level)) {
134 HashTable *ht;
135 /* too many levels of nesting */
136
137 if (track_vars_array) {
138 ht = Z_ARRVAL_P(track_vars_array);
139 zend_symtable_del(ht, var, var_len + 1);
140 }
141
142 zval_dtor(val);
143
144 /* do not output the error message to the screen,
145 this helps us to to avoid "information disclosure" */
146 if (!PG(display_errors)) {
147 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));
148 }
149 free_alloca(var_orig, use_heap);
150 return;
151 }
152
153 ip++;
154 index_s = ip;
155 if (isspace(*ip)) {
156 ip++;
157 }
158 if (*ip==']') {
159 index_s = NULL;
160 } else {
161 ip = strchr(ip, ']');
162 if (!ip) {
163 /* PHP variables cannot contain '[' in their names, so we replace the character with a '_' */
164 *(index_s - 1) = '_';
165
166 index_len = 0;
167 if (index) {
168 index_len = strlen(index);
169 }
170 goto plain_var;
171 return;
172 }
173 *ip = 0;
174 new_idx_len = strlen(index_s);
175 }
176
177 if (!index) {
178 MAKE_STD_ZVAL(gpc_element);
179 array_init(gpc_element);
180 if (zend_hash_next_index_insert(symtable1, &gpc_element, sizeof(zval *), (void **) &gpc_element_p) == FAILURE) {
181 zval_ptr_dtor(&gpc_element);
182 zval_dtor(val);
183 free_alloca(var_orig, use_heap);
184 return;
185 }
186 } else {
187 if (zend_symtable_find(symtable1, index, index_len + 1, (void **) &gpc_element_p) == FAILURE
188 || Z_TYPE_PP(gpc_element_p) != IS_ARRAY) {
189 MAKE_STD_ZVAL(gpc_element);
190 array_init(gpc_element);
191 zend_symtable_update(symtable1, index, index_len + 1, &gpc_element, sizeof(zval *), (void **) &gpc_element_p);
192 }
193 }
194 symtable1 = Z_ARRVAL_PP(gpc_element_p);
195 /* ip pointed to the '[' character, now obtain the key */
196 index = index_s;
197 index_len = new_idx_len;
198
199 ip++;
200 if (*ip == '[') {
201 is_array = 1;
202 *ip = 0;
203 } else {
204 goto plain_var;
205 }
206 }
207 } else {
208plain_var:
209 MAKE_STD_ZVAL(gpc_element);
210 gpc_element->value = val->value;
211 Z_TYPE_P(gpc_element) = Z_TYPE_P(val);
212 if (!index) {
213 if (zend_hash_next_index_insert(symtable1, &gpc_element, sizeof(zval *), (void **) &gpc_element_p) == FAILURE) {
214 zval_ptr_dtor(&gpc_element);
215 }
216 } else {
217 /*
218 * According to rfc2965, more specific paths are listed above the less specific ones.
219 * If we encounter a duplicate cookie name, we should skip it, since it is not possible
220 * to have the same (plain text) cookie name for the same path and we should not overwrite
221 * more specific cookies with the less specific ones.
222 */
223 if (PG(http_globals)[TRACK_VARS_COOKIE] &&
224 symtable1 == Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_COOKIE]) &&
225 zend_symtable_exists(symtable1, index, index_len + 1)) {
226 zval_ptr_dtor(&gpc_element);
227 } else {
228 zend_symtable_update(symtable1, index, index_len + 1, &gpc_element, sizeof(zval *), (void **) &gpc_element_p);
229 }
230 }
231 }
232 free_alloca(var_orig, use_heap);
233}
234
235typedef struct post_var_data {
236 smart_str str;
237 char *ptr;
238 char *end;
239 uint64_t cnt;
240} post_var_data_t;
241
242static zend_bool add_post_var(zval *arr, post_var_data_t *var, zend_bool eof TSRMLS_DC)
243{
244 char *ksep, *vsep, *val;
245 size_t klen, vlen;
246 /* FIXME: string-size_t */
247 unsigned int new_vlen;
248
249 if (var->ptr >= var->end) {
250 return 0;
251 }
252
253 vsep = memchr(var->ptr, '&', var->end - var->ptr);
254 if (!vsep) {
255 if (!eof) {
256 return 0;
257 } else {
258 vsep = var->end;
259 }
260 }
261
262 ksep = memchr(var->ptr, '=', vsep - var->ptr);
263 if (ksep) {
264 *ksep = '\0';
265 /* "foo=bar&" or "foo=&" */
266 klen = ksep - var->ptr;
267 vlen = vsep - ++ksep;
268 } else {
269 ksep = "";
270 /* "foo&" */
271 klen = vsep - var->ptr;
272 vlen = 0;
273 }
274
275 php_url_decode(var->ptr, klen);
276
277 val = estrndup(ksep, vlen);
278 if (vlen) {
279 vlen = php_url_decode(val, vlen);
280 }
281
282 if (sapi_module.input_filter(PARSE_POST, var->ptr, &val, vlen, &new_vlen TSRMLS_CC)) {
283 php_register_variable_safe(var->ptr, val, new_vlen, arr TSRMLS_CC);
284 }
285 efree(val);
286
287 var->ptr = vsep + (vsep != var->end);
288 return 1;
289}
290
291static inline int add_post_vars(zval *arr, post_var_data_t *vars, zend_bool eof TSRMLS_DC)
292{
293 uint64_t max_vars = PG(max_input_vars);
294
295 vars->ptr = vars->str.c;
296 vars->end = vars->str.c + vars->str.len;
297 while (add_post_var(arr, vars, eof TSRMLS_CC)) {
298 if (++vars->cnt > max_vars) {
299 php_error_docref(NULL TSRMLS_CC, E_WARNING,
300 "Input variables exceeded %" PRIu64 ". "
301 "To increase the limit change max_input_vars in php.ini.",
302 max_vars);
303 return FAILURE;
304 }
305 }
306
307 if (!eof) {
308 memmove(vars->str.c, vars->ptr, vars->str.len = vars->end - vars->ptr);
309 }
310 return SUCCESS;
311}
312
313#ifdef PHP_WIN32
314#define SAPI_POST_HANDLER_BUFSIZ 16384
315#else
316# define SAPI_POST_HANDLER_BUFSIZ BUFSIZ
317#endif
318SAPI_API SAPI_POST_HANDLER_FUNC(php_std_post_handler)
319{
320 zval *arr = (zval *) arg;
321 php_stream *s = SG(request_info).request_body;
322 post_var_data_t post_data;
323
324 if (s && SUCCESS == php_stream_rewind(s)) {
325 memset(&post_data, 0, sizeof(post_data));
326
327 while (!php_stream_eof(s)) {
328 char buf[SAPI_POST_HANDLER_BUFSIZ] = {0};
329 size_t len = php_stream_read(s, buf, SAPI_POST_HANDLER_BUFSIZ);
330
331 if (len && len != (size_t) -1) {
332 smart_str_appendl(&post_data.str, buf, len);
333
334 if (SUCCESS != add_post_vars(arr, &post_data, 0 TSRMLS_CC)) {
335 if (post_data.str.c) {
336 efree(post_data.str.c);
337 }
338 return;
339 }
340 }
341
342 if (len != SAPI_POST_HANDLER_BUFSIZ){
343 break;
344 }
345 }
346
347 add_post_vars(arr, &post_data, 1 TSRMLS_CC);
348 if (post_data.str.c) {
349 efree(post_data.str.c);
350 }
351 }
352}
353#undef SAPI_POST_HANDLER_BUFSIZ
354
355SAPI_API SAPI_INPUT_FILTER_FUNC(php_default_input_filter)
356{
357 /* TODO: check .ini setting here and apply user-defined input filter */
358 if(new_val_len) *new_val_len = val_len;
359 return 1;
360}
361
362SAPI_API SAPI_TREAT_DATA_FUNC(php_default_treat_data)
363{
364 char *res = NULL, *var, *val, *separator = NULL;
365 const char *c_var;
366 zval *array_ptr;
367 int free_buffer = 0;
368 char *strtok_buf = NULL;
369 long count = 0;
370
371 switch (arg) {
372 case PARSE_POST:
373 case PARSE_GET:
374 case PARSE_COOKIE:
375 ALLOC_ZVAL(array_ptr);
376 array_init(array_ptr);
377 INIT_PZVAL(array_ptr);
378 switch (arg) {
379 case PARSE_POST:
380 if (PG(http_globals)[TRACK_VARS_POST]) {
381 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_POST]);
382 }
383 PG(http_globals)[TRACK_VARS_POST] = array_ptr;
384 break;
385 case PARSE_GET:
386 if (PG(http_globals)[TRACK_VARS_GET]) {
387 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_GET]);
388 }
389 PG(http_globals)[TRACK_VARS_GET] = array_ptr;
390 break;
391 case PARSE_COOKIE:
392 if (PG(http_globals)[TRACK_VARS_COOKIE]) {
393 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_COOKIE]);
394 }
395 PG(http_globals)[TRACK_VARS_COOKIE] = array_ptr;
396 break;
397 }
398 break;
399 default:
400 array_ptr = destArray;
401 break;
402 }
403
404 if (arg == PARSE_POST) {
405 sapi_handle_post(array_ptr TSRMLS_CC);
406 return;
407 }
408
409 if (arg == PARSE_GET) { /* GET data */
410 c_var = SG(request_info).query_string;
411 if (c_var && *c_var) {
412 res = (char *) estrdup(c_var);
413 free_buffer = 1;
414 } else {
415 free_buffer = 0;
416 }
417 } else if (arg == PARSE_COOKIE) { /* Cookie data */
418 c_var = SG(request_info).cookie_data;
419 if (c_var && *c_var) {
420 res = (char *) estrdup(c_var);
421 free_buffer = 1;
422 } else {
423 free_buffer = 0;
424 }
425 } else if (arg == PARSE_STRING) { /* String data */
426 res = str;
427 free_buffer = 1;
428 }
429
430 if (!res) {
431 return;
432 }
433
434 switch (arg) {
435 case PARSE_GET:
436 case PARSE_STRING:
437 separator = (char *) estrdup(PG(arg_separator).input);
438 break;
439 case PARSE_COOKIE:
440 separator = ";\0";
441 break;
442 }
443
444 var = php_strtok_r(res, separator, &strtok_buf);
445
446 while (var) {
447 val = strchr(var, '=');
448
449 if (arg == PARSE_COOKIE) {
450 /* Remove leading spaces from cookie names, needed for multi-cookie header where ; can be followed by a space */
451 while (isspace(*var)) {
452 var++;
453 }
454 if (var == val || *var == '\0') {
455 goto next_cookie;
456 }
457 }
458
459 if (++count > PG(max_input_vars)) {
460 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));
461 break;
462 }
463
464 if (val) { /* have a value */
465 int val_len;
466 unsigned int new_val_len;
467
468 *val++ = '\0';
469 php_url_decode(var, strlen(var));
470 val_len = php_url_decode(val, strlen(val));
471 val = estrndup(val, val_len);
472 if (sapi_module.input_filter(arg, var, &val, val_len, &new_val_len TSRMLS_CC)) {
473 php_register_variable_safe(var, val, new_val_len, array_ptr TSRMLS_CC);
474 }
475 efree(val);
476 } else {
477 int val_len;
478 unsigned int new_val_len;
479
480 php_url_decode(var, strlen(var));
481 val_len = 0;
482 val = estrndup("", val_len);
483 if (sapi_module.input_filter(arg, var, &val, val_len, &new_val_len TSRMLS_CC)) {
484 php_register_variable_safe(var, val, new_val_len, array_ptr TSRMLS_CC);
485 }
486 efree(val);
487 }
488next_cookie:
489 var = php_strtok_r(NULL, separator, &strtok_buf);
490 }
491
492 if (arg != PARSE_COOKIE) {
493 efree(separator);
494 }
495
496 if (free_buffer) {
497 efree(res);
498 }
499}
500
501void _php_import_environment_variables(zval *array_ptr TSRMLS_DC)
502{
503 char buf[128];
504 char **env, *p, *t = buf;
505 size_t alloc_size = sizeof(buf);
506 unsigned long nlen; /* ptrdiff_t is not portable */
507
508 for (env = environ; env != NULL && *env != NULL; env++) {
509 p = strchr(*env, '=');
510 if (!p) { /* malformed entry? */
511 continue;
512 }
513 nlen = p - *env;
514 if (nlen >= alloc_size) {
515 alloc_size = nlen + 64;
516 t = (t == buf ? emalloc(alloc_size): erealloc(t, alloc_size));
517 }
518 memcpy(t, *env, nlen);
519 t[nlen] = '\0';
520 php_register_variable(t, p + 1, array_ptr TSRMLS_CC);
521 }
522 if (t != buf && t != NULL) {
523 efree(t);
524 }
525}
526
527zend_bool php_std_auto_global_callback(char *name, uint name_len TSRMLS_DC)
528{
529 zend_printf("%s\n", name);
530 return 0; /* don't rearm */
531}
532
533/* {{{ php_build_argv
534 */
535static void php_build_argv(char *s, zval *track_vars_array TSRMLS_DC)
536{
537 zval *arr, *argc, *tmp;
538 int count = 0;
539 char *ss, *space;
540
541 if (!(SG(request_info).argc || track_vars_array)) {
542 return;
543 }
544
545 ALLOC_INIT_ZVAL(arr);
546 array_init(arr);
547
548 /* Prepare argv */
549 if (SG(request_info).argc) { /* are we in cli sapi? */
550 int i;
551 for (i = 0; i < SG(request_info).argc; i++) {
552 ALLOC_ZVAL(tmp);
553 Z_TYPE_P(tmp) = IS_STRING;
554 Z_STRLEN_P(tmp) = strlen(SG(request_info).argv[i]);
555 Z_STRVAL_P(tmp) = estrndup(SG(request_info).argv[i], Z_STRLEN_P(tmp));
556 INIT_PZVAL(tmp);
557 if (zend_hash_next_index_insert(Z_ARRVAL_P(arr), &tmp, sizeof(zval *), NULL) == FAILURE) {
558 if (Z_TYPE_P(tmp) == IS_STRING) {
559 efree(Z_STRVAL_P(tmp));
560 }
561 }
562 }
563 } else if (s && *s) {
564 ss = s;
565 while (ss) {
566 space = strchr(ss, '+');
567 if (space) {
568 *space = '\0';
569 }
570 /* auto-type */
571 ALLOC_ZVAL(tmp);
572 Z_TYPE_P(tmp) = IS_STRING;
573 Z_STRLEN_P(tmp) = strlen(ss);
574 Z_STRVAL_P(tmp) = estrndup(ss, Z_STRLEN_P(tmp));
575 INIT_PZVAL(tmp);
576 count++;
577 if (zend_hash_next_index_insert(Z_ARRVAL_P(arr), &tmp, sizeof(zval *), NULL) == FAILURE) {
578 if (Z_TYPE_P(tmp) == IS_STRING) {
579 efree(Z_STRVAL_P(tmp));
580 }
581 }
582 if (space) {
583 *space = '+';
584 ss = space + 1;
585 } else {
586 ss = space;
587 }
588 }
589 }
590
591 /* prepare argc */
592 ALLOC_INIT_ZVAL(argc);
593 if (SG(request_info).argc) {
594 Z_LVAL_P(argc) = SG(request_info).argc;
595 } else {
596 Z_LVAL_P(argc) = count;
597 }
598 Z_TYPE_P(argc) = IS_LONG;
599
600 if (SG(request_info).argc) {
601 Z_ADDREF_P(arr);
602 Z_ADDREF_P(argc);
603 zend_hash_update(&EG(symbol_table), "argv", sizeof("argv"), &arr, sizeof(zval *), NULL);
604 zend_hash_update(&EG(symbol_table), "argc", sizeof("argc"), &argc, sizeof(zval *), NULL);
605 }
606 if (track_vars_array) {
607 Z_ADDREF_P(arr);
608 Z_ADDREF_P(argc);
609 zend_hash_update(Z_ARRVAL_P(track_vars_array), "argv", sizeof("argv"), &arr, sizeof(zval *), NULL);
610 zend_hash_update(Z_ARRVAL_P(track_vars_array), "argc", sizeof("argc"), &argc, sizeof(zval *), NULL);
611 }
612 zval_ptr_dtor(&arr);
613 zval_ptr_dtor(&argc);
614}
615/* }}} */
616
617/* {{{ php_register_server_variables
618 */
619static inline void php_register_server_variables(TSRMLS_D)
620{
621 zval *array_ptr = NULL;
622
623 ALLOC_ZVAL(array_ptr);
624 array_init(array_ptr);
625 INIT_PZVAL(array_ptr);
626 if (PG(http_globals)[TRACK_VARS_SERVER]) {
627 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_SERVER]);
628 }
629 PG(http_globals)[TRACK_VARS_SERVER] = array_ptr;
630
631 /* Server variables */
632 if (sapi_module.register_server_variables) {
633 sapi_module.register_server_variables(array_ptr TSRMLS_CC);
634 }
635
636 /* PHP Authentication support */
637 if (SG(request_info).auth_user) {
638 php_register_variable("PHP_AUTH_USER", SG(request_info).auth_user, array_ptr TSRMLS_CC);
639 }
640 if (SG(request_info).auth_password) {
641 php_register_variable("PHP_AUTH_PW", SG(request_info).auth_password, array_ptr TSRMLS_CC);
642 }
643 if (SG(request_info).auth_digest) {
644 php_register_variable("PHP_AUTH_DIGEST", SG(request_info).auth_digest, array_ptr TSRMLS_CC);
645 }
646 /* store request init time */
647 {
648 zval request_time_float, request_time_long;
649 Z_TYPE(request_time_float) = IS_DOUBLE;
650 Z_DVAL(request_time_float) = sapi_get_request_time(TSRMLS_C);
651 php_register_variable_ex("REQUEST_TIME_FLOAT", &request_time_float, array_ptr TSRMLS_CC);
652 Z_TYPE(request_time_long) = IS_LONG;
653 Z_LVAL(request_time_long) = zend_dval_to_lval(Z_DVAL(request_time_float));
654 php_register_variable_ex("REQUEST_TIME", &request_time_long, array_ptr TSRMLS_CC);
655 }
656
657}
658/* }}} */
659
660/* {{{ php_autoglobal_merge
661 */
662static void php_autoglobal_merge(HashTable *dest, HashTable *src TSRMLS_DC)
663{
664 zval **src_entry, **dest_entry;
665 char *string_key;
666 uint string_key_len;
667 ulong num_key;
668 HashPosition pos;
669 int key_type;
670 int globals_check = (dest == (&EG(symbol_table)));
671
672 zend_hash_internal_pointer_reset_ex(src, &pos);
673 while (zend_hash_get_current_data_ex(src, (void **)&src_entry, &pos) == SUCCESS) {
674 key_type = zend_hash_get_current_key_ex(src, &string_key, &string_key_len, &num_key, 0, &pos);
675 if (Z_TYPE_PP(src_entry) != IS_ARRAY
676 || (key_type == HASH_KEY_IS_STRING && zend_hash_find(dest, string_key, string_key_len, (void **) &dest_entry) != SUCCESS)
677 || (key_type == HASH_KEY_IS_LONG && zend_hash_index_find(dest, num_key, (void **)&dest_entry) != SUCCESS)
678 || Z_TYPE_PP(dest_entry) != IS_ARRAY
679 ) {
680 Z_ADDREF_PP(src_entry);
681 if (key_type == HASH_KEY_IS_STRING) {
682 if (!globals_check || string_key_len != sizeof("GLOBALS") || memcmp(string_key, "GLOBALS", sizeof("GLOBALS") - 1)) {
683 zend_hash_update(dest, string_key, string_key_len, src_entry, sizeof(zval *), NULL);
684 } else {
685 Z_DELREF_PP(src_entry);
686 }
687 } else {
688 zend_hash_index_update(dest, num_key, src_entry, sizeof(zval *), NULL);
689 }
690 } else {
691 SEPARATE_ZVAL(dest_entry);
692 php_autoglobal_merge(Z_ARRVAL_PP(dest_entry), Z_ARRVAL_PP(src_entry) TSRMLS_CC);
693 }
694 zend_hash_move_forward_ex(src, &pos);
695 }
696}
697/* }}} */
698
699static zend_bool php_auto_globals_create_server(const char *name, uint name_len TSRMLS_DC);
700static zend_bool php_auto_globals_create_env(const char *name, uint name_len TSRMLS_DC);
701static zend_bool php_auto_globals_create_request(const char *name, uint name_len TSRMLS_DC);
702
703/* {{{ php_hash_environment
704 */
705PHPAPI int php_hash_environment(TSRMLS_D)
706{
707 memset(PG(http_globals), 0, sizeof(PG(http_globals)));
708 zend_activate_auto_globals(TSRMLS_C);
709 if (PG(register_argc_argv)) {
710 php_build_argv(SG(request_info).query_string, PG(http_globals)[TRACK_VARS_SERVER] TSRMLS_CC);
711 }
712 return SUCCESS;
713}
714/* }}} */
715
716static zend_bool php_auto_globals_create_get(const char *name, uint name_len TSRMLS_DC)
717{
718 zval *vars;
719
720 if (PG(variables_order) && (strchr(PG(variables_order),'G') || strchr(PG(variables_order),'g'))) {
721 sapi_module.treat_data(PARSE_GET, NULL, NULL TSRMLS_CC);
722 vars = PG(http_globals)[TRACK_VARS_GET];
723 } else {
724 ALLOC_ZVAL(vars);
725 array_init(vars);
726 INIT_PZVAL(vars);
727 if (PG(http_globals)[TRACK_VARS_GET]) {
728 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_GET]);
729 }
730 PG(http_globals)[TRACK_VARS_GET] = vars;
731 }
732
733 zend_hash_update(&EG(symbol_table), name, name_len + 1, &vars, sizeof(zval *), NULL);
734 Z_ADDREF_P(vars);
735
736 return 0; /* don't rearm */
737}
738
739static zend_bool php_auto_globals_create_post(const char *name, uint name_len TSRMLS_DC)
740{
741 zval *vars;
742
743 if (PG(variables_order) &&
744 (strchr(PG(variables_order),'P') || strchr(PG(variables_order),'p')) &&
745 SG(request_info).request_method &&
746 !strcasecmp(SG(request_info).request_method, "POST")) {
747 sapi_module.treat_data(PARSE_POST, NULL, NULL TSRMLS_CC);
748 vars = PG(http_globals)[TRACK_VARS_POST];
749 } else {
750 ALLOC_ZVAL(vars);
751 array_init(vars);
752 INIT_PZVAL(vars);
753 if (PG(http_globals)[TRACK_VARS_POST]) {
754 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_POST]);
755 }
756 PG(http_globals)[TRACK_VARS_POST] = vars;
757 }
758
759 zend_hash_update(&EG(symbol_table), name, name_len + 1, &vars, sizeof(zval *), NULL);
760 Z_ADDREF_P(vars);
761
762 return 0; /* don't rearm */
763}
764
765static zend_bool php_auto_globals_create_cookie(const char *name, uint name_len TSRMLS_DC)
766{
767 zval *vars;
768
769 if (PG(variables_order) && (strchr(PG(variables_order),'C') || strchr(PG(variables_order),'c'))) {
770 sapi_module.treat_data(PARSE_COOKIE, NULL, NULL TSRMLS_CC);
771 vars = PG(http_globals)[TRACK_VARS_COOKIE];
772 } else {
773 ALLOC_ZVAL(vars);
774 array_init(vars);
775 INIT_PZVAL(vars);
776 if (PG(http_globals)[TRACK_VARS_COOKIE]) {
777 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_COOKIE]);
778 }
779 PG(http_globals)[TRACK_VARS_COOKIE] = vars;
780 }
781
782 zend_hash_update(&EG(symbol_table), name, name_len + 1, &vars, sizeof(zval *), NULL);
783 Z_ADDREF_P(vars);
784
785 return 0; /* don't rearm */
786}
787
788static zend_bool php_auto_globals_create_files(const char *name, uint name_len TSRMLS_DC)
789{
790 zval *vars;
791
792 if (PG(http_globals)[TRACK_VARS_FILES]) {
793 vars = PG(http_globals)[TRACK_VARS_FILES];
794 } else {
795 ALLOC_ZVAL(vars);
796 array_init(vars);
797 INIT_PZVAL(vars);
798 PG(http_globals)[TRACK_VARS_FILES] = vars;
799 }
800
801 zend_hash_update(&EG(symbol_table), name, name_len + 1, &vars, sizeof(zval *), NULL);
802 Z_ADDREF_P(vars);
803
804 return 0; /* don't rearm */
805}
806
807static zend_bool php_auto_globals_create_server(const char *name, uint name_len TSRMLS_DC)
808{
809 if (PG(variables_order) && (strchr(PG(variables_order),'S') || strchr(PG(variables_order),'s'))) {
810 php_register_server_variables(TSRMLS_C);
811
812 if (PG(register_argc_argv)) {
813 if (SG(request_info).argc) {
814 zval **argc, **argv;
815
816 if (zend_hash_find(&EG(symbol_table), "argc", sizeof("argc"), (void**)&argc) == SUCCESS &&
817 zend_hash_find(&EG(symbol_table), "argv", sizeof("argv"), (void**)&argv) == SUCCESS) {
818 Z_ADDREF_PP(argc);
819 Z_ADDREF_PP(argv);
820 zend_hash_update(Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_SERVER]), "argv", sizeof("argv"), argv, sizeof(zval *), NULL);
821 zend_hash_update(Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_SERVER]), "argc", sizeof("argc"), argc, sizeof(zval *), NULL);
822 }
823 } else {
824 php_build_argv(SG(request_info).query_string, PG(http_globals)[TRACK_VARS_SERVER] TSRMLS_CC);
825 }
826 }
827
828 } else {
829 zval *server_vars=NULL;
830 ALLOC_ZVAL(server_vars);
831 array_init(server_vars);
832 INIT_PZVAL(server_vars);
833 if (PG(http_globals)[TRACK_VARS_SERVER]) {
834 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_SERVER]);
835 }
836 PG(http_globals)[TRACK_VARS_SERVER] = server_vars;
837 }
838
839 zend_hash_update(&EG(symbol_table), name, name_len + 1, &PG(http_globals)[TRACK_VARS_SERVER], sizeof(zval *), NULL);
840 Z_ADDREF_P(PG(http_globals)[TRACK_VARS_SERVER]);
841
842 return 0; /* don't rearm */
843}
844
845static zend_bool php_auto_globals_create_env(const char *name, uint name_len TSRMLS_DC)
846{
847 zval *env_vars = NULL;
848 ALLOC_ZVAL(env_vars);
849 array_init(env_vars);
850 INIT_PZVAL(env_vars);
851 if (PG(http_globals)[TRACK_VARS_ENV]) {
852 zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_ENV]);
853 }
854 PG(http_globals)[TRACK_VARS_ENV] = env_vars;
855
856 if (PG(variables_order) && (strchr(PG(variables_order),'E') || strchr(PG(variables_order),'e'))) {
857 php_import_environment_variables(PG(http_globals)[TRACK_VARS_ENV] TSRMLS_CC);
858 }
859
860 zend_hash_update(&EG(symbol_table), name, name_len + 1, &PG(http_globals)[TRACK_VARS_ENV], sizeof(zval *), NULL);
861 Z_ADDREF_P(PG(http_globals)[TRACK_VARS_ENV]);
862
863 return 0; /* don't rearm */
864}
865
866static zend_bool php_auto_globals_create_request(const char *name, uint name_len TSRMLS_DC)
867{
868 zval *form_variables;
869 unsigned char _gpc_flags[3] = {0, 0, 0};
870 char *p;
871
872 ALLOC_ZVAL(form_variables);
873 array_init(form_variables);
874 INIT_PZVAL(form_variables);
875
876 if (PG(request_order) != NULL) {
877 p = PG(request_order);
878 } else {
879 p = PG(variables_order);
880 }
881
882 for (; p && *p; p++) {
883 switch (*p) {
884 case 'g':
885 case 'G':
886 if (!_gpc_flags[0]) {
887 php_autoglobal_merge(Z_ARRVAL_P(form_variables), Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_GET]) TSRMLS_CC);
888 _gpc_flags[0] = 1;
889 }
890 break;
891 case 'p':
892 case 'P':
893 if (!_gpc_flags[1]) {
894 php_autoglobal_merge(Z_ARRVAL_P(form_variables), Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_POST]) TSRMLS_CC);
895 _gpc_flags[1] = 1;
896 }
897 break;
898 case 'c':
899 case 'C':
900 if (!_gpc_flags[2]) {
901 php_autoglobal_merge(Z_ARRVAL_P(form_variables), Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_COOKIE]) TSRMLS_CC);
902 _gpc_flags[2] = 1;
903 }
904 break;
905 }
906 }
907
908 zend_hash_update(&EG(symbol_table), name, name_len + 1, &form_variables, sizeof(zval *), NULL);
909 return 0;
910}
911
912void php_startup_auto_globals(TSRMLS_D)
913{
914 zend_register_auto_global(ZEND_STRL("_GET"), 0, php_auto_globals_create_get TSRMLS_CC);
915 zend_register_auto_global(ZEND_STRL("_POST"), 0, php_auto_globals_create_post TSRMLS_CC);
916 zend_register_auto_global(ZEND_STRL("_COOKIE"), 0, php_auto_globals_create_cookie TSRMLS_CC);
917 zend_register_auto_global(ZEND_STRL("_SERVER"), PG(auto_globals_jit), php_auto_globals_create_server TSRMLS_CC);
918 zend_register_auto_global(ZEND_STRL("_ENV"), PG(auto_globals_jit), php_auto_globals_create_env TSRMLS_CC);
919 zend_register_auto_global(ZEND_STRL("_REQUEST"), PG(auto_globals_jit), php_auto_globals_create_request TSRMLS_CC);
920 zend_register_auto_global(ZEND_STRL("_FILES"), 0, php_auto_globals_create_files TSRMLS_CC);
921}
922
923/*
924 * Local variables:
925 * tab-width: 4
926 * c-basic-offset: 4
927 * End:
928 * vim600: sw=4 ts=4 fdm=marker
929 * vim<600: sw=4 ts=4
930 */
931