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: php_variables.c,v 1.1.1.5 2014/06/15 20:04:01 misho Exp $ */
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:
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 */
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:
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:
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:
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:
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:
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:
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: */
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: */
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: */
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: */
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: */
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:
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:
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:
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:
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:
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:
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:
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:
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: */
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