Annotation of embedaddon/php/ext/spl/php_spl.c, revision 1.1.1.1
1.1 misho 1: /*
2: +----------------------------------------------------------------------+
3: | PHP Version 5 |
4: +----------------------------------------------------------------------+
5: | Copyright (c) 1997-2012 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: Marcus Boerger <helly@php.net> |
16: +----------------------------------------------------------------------+
17: */
18:
19: /* $Id: php_spl.c 321634 2012-01-01 13:15:04Z felipe $ */
20:
21: #ifdef HAVE_CONFIG_H
22: #include "config.h"
23: #endif
24:
25: #include "php.h"
26: #include "php_ini.h"
27: #include "php_main.h"
28: #include "ext/standard/info.h"
29: #include "php_spl.h"
30: #include "spl_functions.h"
31: #include "spl_engine.h"
32: #include "spl_array.h"
33: #include "spl_directory.h"
34: #include "spl_iterators.h"
35: #include "spl_exceptions.h"
36: #include "spl_observer.h"
37: #include "spl_dllist.h"
38: #include "spl_fixedarray.h"
39: #include "spl_heap.h"
40: #include "zend_exceptions.h"
41: #include "zend_interfaces.h"
42: #include "ext/standard/php_rand.h"
43: #include "ext/standard/php_lcg.h"
44: #include "main/snprintf.h"
45:
46: #ifdef COMPILE_DL_SPL
47: ZEND_GET_MODULE(spl)
48: #endif
49:
50: ZEND_DECLARE_MODULE_GLOBALS(spl)
51:
52: #define SPL_DEFAULT_FILE_EXTENSIONS ".inc,.php"
53:
54: /* {{{ PHP_GINIT_FUNCTION
55: */
56: static PHP_GINIT_FUNCTION(spl)
57: {
58: spl_globals->autoload_extensions = NULL;
59: spl_globals->autoload_extensions_len = 0;
60: spl_globals->autoload_functions = NULL;
61: spl_globals->autoload_running = 0;
62: }
63: /* }}} */
64:
65: static zend_class_entry * spl_find_ce_by_name(char *name, int len, zend_bool autoload TSRMLS_DC)
66: {
67: zend_class_entry **ce;
68: int found;
69:
70: if (!autoload) {
71: char *lc_name;
72: ALLOCA_FLAG(use_heap)
73:
74: lc_name = do_alloca(len + 1, use_heap);
75: zend_str_tolower_copy(lc_name, name, len);
76:
77: found = zend_hash_find(EG(class_table), lc_name, len +1, (void **) &ce);
78: free_alloca(lc_name, use_heap);
79: } else {
80: found = zend_lookup_class(name, len, &ce TSRMLS_CC);
81: }
82: if (found != SUCCESS) {
83: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Class %s does not exist%s", name, autoload ? " and could not be loaded" : "");
84: return NULL;
85: }
86:
87: return *ce;
88: }
89:
90: /* {{{ proto array class_parents(object instance [, boolean autoload = true])
91: Return an array containing the names of all parent classes */
92: PHP_FUNCTION(class_parents)
93: {
94: zval *obj;
95: zend_class_entry *parent_class, *ce;
96: zend_bool autoload = 1;
97:
98: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|b", &obj, &autoload) == FAILURE) {
99: RETURN_FALSE;
100: }
101:
102: if (Z_TYPE_P(obj) != IS_OBJECT && Z_TYPE_P(obj) != IS_STRING) {
103: php_error_docref(NULL TSRMLS_CC, E_WARNING, "object or string expected");
104: RETURN_FALSE;
105: }
106:
107: if (Z_TYPE_P(obj) == IS_STRING) {
108: if (NULL == (ce = spl_find_ce_by_name(Z_STRVAL_P(obj), Z_STRLEN_P(obj), autoload TSRMLS_CC))) {
109: RETURN_FALSE;
110: }
111: } else {
112: ce = Z_OBJCE_P(obj);
113: }
114:
115: array_init(return_value);
116: parent_class = ce->parent;
117: while (parent_class) {
118: spl_add_class_name(return_value, parent_class, 0, 0 TSRMLS_CC);
119: parent_class = parent_class->parent;
120: }
121: }
122: /* }}} */
123:
124: /* {{{ proto array class_implements(mixed what [, bool autoload ])
125: Return all classes and interfaces implemented by SPL */
126: PHP_FUNCTION(class_implements)
127: {
128: zval *obj;
129: zend_bool autoload = 1;
130: zend_class_entry *ce;
131:
132: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|b", &obj, &autoload) == FAILURE) {
133: RETURN_FALSE;
134: }
135: if (Z_TYPE_P(obj) != IS_OBJECT && Z_TYPE_P(obj) != IS_STRING) {
136: php_error_docref(NULL TSRMLS_CC, E_WARNING, "object or string expected");
137: RETURN_FALSE;
138: }
139:
140: if (Z_TYPE_P(obj) == IS_STRING) {
141: if (NULL == (ce = spl_find_ce_by_name(Z_STRVAL_P(obj), Z_STRLEN_P(obj), autoload TSRMLS_CC))) {
142: RETURN_FALSE;
143: }
144: } else {
145: ce = Z_OBJCE_P(obj);
146: }
147:
148: array_init(return_value);
149: spl_add_interfaces(return_value, ce, 1, ZEND_ACC_INTERFACE TSRMLS_CC);
150: }
151: /* }}} */
152:
153: #define SPL_ADD_CLASS(class_name, z_list, sub, allow, ce_flags) \
154: spl_add_classes(spl_ce_ ## class_name, z_list, sub, allow, ce_flags TSRMLS_CC)
155:
156: #define SPL_LIST_CLASSES(z_list, sub, allow, ce_flags) \
157: SPL_ADD_CLASS(AppendIterator, z_list, sub, allow, ce_flags); \
158: SPL_ADD_CLASS(ArrayIterator, z_list, sub, allow, ce_flags); \
159: SPL_ADD_CLASS(ArrayObject, z_list, sub, allow, ce_flags); \
160: SPL_ADD_CLASS(BadFunctionCallException, z_list, sub, allow, ce_flags); \
161: SPL_ADD_CLASS(BadMethodCallException, z_list, sub, allow, ce_flags); \
162: SPL_ADD_CLASS(CachingIterator, z_list, sub, allow, ce_flags); \
163: SPL_ADD_CLASS(Countable, z_list, sub, allow, ce_flags); \
164: SPL_ADD_CLASS(DirectoryIterator, z_list, sub, allow, ce_flags); \
165: SPL_ADD_CLASS(DomainException, z_list, sub, allow, ce_flags); \
166: SPL_ADD_CLASS(EmptyIterator, z_list, sub, allow, ce_flags); \
167: SPL_ADD_CLASS(FilesystemIterator, z_list, sub, allow, ce_flags); \
168: SPL_ADD_CLASS(FilterIterator, z_list, sub, allow, ce_flags); \
169: SPL_ADD_CLASS(GlobIterator, z_list, sub, allow, ce_flags); \
170: SPL_ADD_CLASS(InfiniteIterator, z_list, sub, allow, ce_flags); \
171: SPL_ADD_CLASS(InvalidArgumentException, z_list, sub, allow, ce_flags); \
172: SPL_ADD_CLASS(IteratorIterator, z_list, sub, allow, ce_flags); \
173: SPL_ADD_CLASS(LengthException, z_list, sub, allow, ce_flags); \
174: SPL_ADD_CLASS(LimitIterator, z_list, sub, allow, ce_flags); \
175: SPL_ADD_CLASS(LogicException, z_list, sub, allow, ce_flags); \
176: SPL_ADD_CLASS(MultipleIterator, z_list, sub, allow, ce_flags); \
177: SPL_ADD_CLASS(NoRewindIterator, z_list, sub, allow, ce_flags); \
178: SPL_ADD_CLASS(OuterIterator, z_list, sub, allow, ce_flags); \
179: SPL_ADD_CLASS(OutOfBoundsException, z_list, sub, allow, ce_flags); \
180: SPL_ADD_CLASS(OutOfRangeException, z_list, sub, allow, ce_flags); \
181: SPL_ADD_CLASS(OverflowException, z_list, sub, allow, ce_flags); \
182: SPL_ADD_CLASS(ParentIterator, z_list, sub, allow, ce_flags); \
183: SPL_ADD_CLASS(RangeException, z_list, sub, allow, ce_flags); \
184: SPL_ADD_CLASS(RecursiveArrayIterator, z_list, sub, allow, ce_flags); \
185: SPL_ADD_CLASS(RecursiveCachingIterator, z_list, sub, allow, ce_flags); \
186: SPL_ADD_CLASS(RecursiveDirectoryIterator, z_list, sub, allow, ce_flags); \
187: SPL_ADD_CLASS(RecursiveFilterIterator, z_list, sub, allow, ce_flags); \
188: SPL_ADD_CLASS(RecursiveIterator, z_list, sub, allow, ce_flags); \
189: SPL_ADD_CLASS(RecursiveIteratorIterator, z_list, sub, allow, ce_flags); \
190: SPL_ADD_CLASS(RecursiveRegexIterator, z_list, sub, allow, ce_flags); \
191: SPL_ADD_CLASS(RecursiveTreeIterator, z_list, sub, allow, ce_flags); \
192: SPL_ADD_CLASS(RegexIterator, z_list, sub, allow, ce_flags); \
193: SPL_ADD_CLASS(RuntimeException, z_list, sub, allow, ce_flags); \
194: SPL_ADD_CLASS(SeekableIterator, z_list, sub, allow, ce_flags); \
195: SPL_ADD_CLASS(SplDoublyLinkedList, z_list, sub, allow, ce_flags); \
196: SPL_ADD_CLASS(SplFileInfo, z_list, sub, allow, ce_flags); \
197: SPL_ADD_CLASS(SplFileObject, z_list, sub, allow, ce_flags); \
198: SPL_ADD_CLASS(SplFixedArray, z_list, sub, allow, ce_flags); \
199: SPL_ADD_CLASS(SplHeap, z_list, sub, allow, ce_flags); \
200: SPL_ADD_CLASS(SplMinHeap, z_list, sub, allow, ce_flags); \
201: SPL_ADD_CLASS(SplMaxHeap, z_list, sub, allow, ce_flags); \
202: SPL_ADD_CLASS(SplObjectStorage, z_list, sub, allow, ce_flags); \
203: SPL_ADD_CLASS(SplObserver, z_list, sub, allow, ce_flags); \
204: SPL_ADD_CLASS(SplPriorityQueue, z_list, sub, allow, ce_flags); \
205: SPL_ADD_CLASS(SplQueue, z_list, sub, allow, ce_flags); \
206: SPL_ADD_CLASS(SplStack, z_list, sub, allow, ce_flags); \
207: SPL_ADD_CLASS(SplSubject, z_list, sub, allow, ce_flags); \
208: SPL_ADD_CLASS(SplTempFileObject, z_list, sub, allow, ce_flags); \
209: SPL_ADD_CLASS(UnderflowException, z_list, sub, allow, ce_flags); \
210: SPL_ADD_CLASS(UnexpectedValueException, z_list, sub, allow, ce_flags); \
211:
212: /* {{{ proto array spl_classes()
213: Return an array containing the names of all clsses and interfaces defined in SPL */
214: PHP_FUNCTION(spl_classes)
215: {
216: array_init(return_value);
217:
218: SPL_LIST_CLASSES(return_value, 0, 0, 0)
219: }
220: /* }}} */
221:
222: static int spl_autoload(const char *class_name, const char * lc_name, int class_name_len, const char * file_extension TSRMLS_DC) /* {{{ */
223: {
224: char *class_file;
225: int class_file_len;
226: int dummy = 1;
227: zend_file_handle file_handle;
228: zend_op_array *new_op_array;
229: zval *result = NULL;
230: int ret;
231:
232: class_file_len = spprintf(&class_file, 0, "%s%s", lc_name, file_extension);
233:
234: #if DEFAULT_SLASH != '\\'
235: {
236: char *ptr = class_file;
237: char *end = ptr + class_file_len;
238:
239: while ((ptr = memchr(ptr, '\\', (end - ptr))) != NULL) {
240: *ptr = DEFAULT_SLASH;
241: }
242: }
243: #endif
244:
245: ret = php_stream_open_for_zend_ex(class_file, &file_handle, ENFORCE_SAFE_MODE|USE_PATH|STREAM_OPEN_FOR_INCLUDE TSRMLS_CC);
246:
247: if (ret == SUCCESS) {
248: if (!file_handle.opened_path) {
249: file_handle.opened_path = estrndup(class_file, class_file_len);
250: }
251: if (zend_hash_add(&EG(included_files), file_handle.opened_path, strlen(file_handle.opened_path)+1, (void *)&dummy, sizeof(int), NULL)==SUCCESS) {
252: new_op_array = zend_compile_file(&file_handle, ZEND_REQUIRE TSRMLS_CC);
253: zend_destroy_file_handle(&file_handle TSRMLS_CC);
254: } else {
255: new_op_array = NULL;
256: zend_file_handle_dtor(&file_handle TSRMLS_CC);
257: }
258: if (new_op_array) {
259: EG(return_value_ptr_ptr) = &result;
260: EG(active_op_array) = new_op_array;
261: if (!EG(active_symbol_table)) {
262: zend_rebuild_symbol_table(TSRMLS_C);
263: }
264:
265: zend_execute(new_op_array TSRMLS_CC);
266:
267: destroy_op_array(new_op_array TSRMLS_CC);
268: efree(new_op_array);
269: if (!EG(exception)) {
270: if (EG(return_value_ptr_ptr)) {
271: zval_ptr_dtor(EG(return_value_ptr_ptr));
272: }
273: }
274:
275: efree(class_file);
276: return zend_hash_exists(EG(class_table), (char*)lc_name, class_name_len+1);
277: }
278: }
279: efree(class_file);
280: return 0;
281: } /* }}} */
282:
283: /* {{{ proto void spl_autoload(string class_name [, string file_extensions])
284: Default implementation for __autoload() */
285: PHP_FUNCTION(spl_autoload)
286: {
287: char *class_name, *lc_name, *file_exts = SPL_G(autoload_extensions);
288: int class_name_len, file_exts_len = SPL_G(autoload_extensions_len), found = 0;
289: char *copy, *pos1, *pos2;
290: zval **original_return_value = EG(return_value_ptr_ptr);
291: zend_op **original_opline_ptr = EG(opline_ptr);
292: zend_op_array *original_active_op_array = EG(active_op_array);
293:
294: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s", &class_name, &class_name_len, &file_exts, &file_exts_len) == FAILURE) {
295: RETURN_FALSE;
296: }
297:
298: if (file_exts == NULL) { /* autoload_extensions is not intialzed, set to defaults */
299: copy = pos1 = estrndup(SPL_DEFAULT_FILE_EXTENSIONS, sizeof(SPL_DEFAULT_FILE_EXTENSIONS)-1);
300: } else {
301: copy = pos1 = estrndup(file_exts, file_exts_len);
302: }
303: lc_name = zend_str_tolower_dup(class_name, class_name_len);
304: while(pos1 && *pos1 && !EG(exception)) {
305: EG(return_value_ptr_ptr) = original_return_value;
306: EG(opline_ptr) = original_opline_ptr;
307: EG(active_op_array) = original_active_op_array;
308: pos2 = strchr(pos1, ',');
309: if (pos2) *pos2 = '\0';
310: if (spl_autoload(class_name, lc_name, class_name_len, pos1 TSRMLS_CC)) {
311: found = 1;
312: break; /* loaded */
313: }
314: pos1 = pos2 ? pos2 + 1 : NULL;
315: }
316: efree(lc_name);
317: if (copy) {
318: efree(copy);
319: }
320:
321: EG(return_value_ptr_ptr) = original_return_value;
322: EG(opline_ptr) = original_opline_ptr;
323: EG(active_op_array) = original_active_op_array;
324:
325: if (!found && !SPL_G(autoload_running)) {
326: /* For internal errors, we generate E_ERROR, for direct calls an exception is thrown.
327: * The "scope" is determined by an opcode, if it is ZEND_FETCH_CLASS we know function was called indirectly by
328: * the Zend engine.
329: */
330: if (active_opline->opcode != ZEND_FETCH_CLASS) {
331: zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Class %s could not be loaded", class_name);
332: } else {
333: php_error_docref(NULL TSRMLS_CC, E_ERROR, "Class %s could not be loaded", class_name);
334: }
335: }
336: } /* }}} */
337:
338: /* {{{ proto string spl_autoload_extensions([string file_extensions])
339: Register and return default file extensions for spl_autoload */
340: PHP_FUNCTION(spl_autoload_extensions)
341: {
342: char *file_exts = NULL;
343: int file_exts_len;
344:
345: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &file_exts, &file_exts_len) == FAILURE) {
346: return;
347: }
348: if (file_exts) {
349: if (SPL_G(autoload_extensions)) {
350: efree(SPL_G(autoload_extensions));
351: }
352: SPL_G(autoload_extensions) = estrndup(file_exts, file_exts_len);
353: SPL_G(autoload_extensions_len) = file_exts_len;
354: }
355:
356: if (SPL_G(autoload_extensions) == NULL) {
357: RETURN_STRINGL(SPL_DEFAULT_FILE_EXTENSIONS, sizeof(SPL_DEFAULT_FILE_EXTENSIONS) - 1, 1);
358: } else {
359: RETURN_STRINGL(SPL_G(autoload_extensions), SPL_G(autoload_extensions_len), 1);
360: }
361: } /* }}} */
362:
363: typedef struct {
364: zend_function *func_ptr;
365: zval *obj;
366: zval *closure;
367: zend_class_entry *ce;
368: } autoload_func_info;
369:
370: static void autoload_func_info_dtor(autoload_func_info *alfi)
371: {
372: if (alfi->obj) {
373: zval_ptr_dtor(&alfi->obj);
374: }
375: if (alfi->closure) {
376: zval_ptr_dtor(&alfi->closure);
377: }
378: }
379:
380: /* {{{ proto void spl_autoload_call(string class_name)
381: Try all registerd autoload function to load the requested class */
382: PHP_FUNCTION(spl_autoload_call)
383: {
384: zval *class_name, *retval = NULL;
385: int class_name_len;
386: char *func_name, *lc_name;
387: uint func_name_len;
388: ulong dummy;
389: HashPosition function_pos;
390: autoload_func_info *alfi;
391:
392: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &class_name) == FAILURE || Z_TYPE_P(class_name) != IS_STRING) {
393: return;
394: }
395:
396: if (SPL_G(autoload_functions)) {
397: int l_autoload_running = SPL_G(autoload_running);
398: SPL_G(autoload_running) = 1;
399: class_name_len = Z_STRLEN_P(class_name);
400: lc_name = zend_str_tolower_dup(Z_STRVAL_P(class_name), class_name_len);
401: zend_hash_internal_pointer_reset_ex(SPL_G(autoload_functions), &function_pos);
402: while(zend_hash_has_more_elements_ex(SPL_G(autoload_functions), &function_pos) == SUCCESS) {
403: zend_hash_get_current_key_ex(SPL_G(autoload_functions), &func_name, &func_name_len, &dummy, 0, &function_pos);
404: zend_hash_get_current_data_ex(SPL_G(autoload_functions), (void **) &alfi, &function_pos);
405: zend_call_method(alfi->obj ? &alfi->obj : NULL, alfi->ce, &alfi->func_ptr, func_name, func_name_len, &retval, 1, class_name, NULL TSRMLS_CC);
406: zend_exception_save(TSRMLS_C);
407: if (retval) {
408: zval_ptr_dtor(&retval);
409: retval = NULL;
410: }
411: if (zend_hash_exists(EG(class_table), lc_name, class_name_len + 1)) {
412: break;
413: }
414: zend_hash_move_forward_ex(SPL_G(autoload_functions), &function_pos);
415: }
416: zend_exception_restore(TSRMLS_C);
417: efree(lc_name);
418: SPL_G(autoload_running) = l_autoload_running;
419: } else {
420: /* do not use or overwrite &EG(autoload_func) here */
421: zend_call_method_with_1_params(NULL, NULL, NULL, "spl_autoload", NULL, class_name);
422: }
423: } /* }}} */
424:
425: #define HT_MOVE_TAIL_TO_HEAD(ht) \
426: (ht)->pListTail->pListNext = (ht)->pListHead; \
427: (ht)->pListHead = (ht)->pListTail; \
428: (ht)->pListTail = (ht)->pListHead->pListLast; \
429: (ht)->pListHead->pListNext->pListLast = (ht)->pListHead;\
430: (ht)->pListTail->pListNext = NULL; \
431: (ht)->pListHead->pListLast = NULL;
432:
433: /* {{{ proto bool spl_autoload_register([mixed autoload_function = "spl_autoload" [, throw = true [, prepend]]])
434: Register given function as __autoload() implementation */
435: PHP_FUNCTION(spl_autoload_register)
436: {
437: char *func_name, *error = NULL;
438: int func_name_len;
439: char *lc_name = NULL;
440: zval *zcallable = NULL;
441: zend_bool do_throw = 1;
442: zend_bool prepend = 0;
443: zend_function *spl_func_ptr;
444: autoload_func_info alfi;
445: zval *obj_ptr;
446: zend_fcall_info_cache fcc;
447:
448: if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "|zbb", &zcallable, &do_throw, &prepend) == FAILURE) {
449: return;
450: }
451:
452: if (ZEND_NUM_ARGS()) {
453: if (Z_TYPE_P(zcallable) == IS_STRING) {
454: if (Z_STRLEN_P(zcallable) == sizeof("spl_autoload_call") - 1) {
455: if (!zend_binary_strcasecmp(Z_STRVAL_P(zcallable), sizeof("spl_autoload_call"), "spl_autoload_call", sizeof("spl_autoload_call"))) {
456: if (do_throw) {
457: zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Function spl_autoload_call() cannot be registered");
458: }
459: RETURN_FALSE;
460: }
461: }
462: }
463:
464: if (!zend_is_callable_ex(zcallable, NULL, IS_CALLABLE_STRICT, &func_name, &func_name_len, &fcc, &error TSRMLS_CC)) {
465: alfi.ce = fcc.calling_scope;
466: alfi.func_ptr = fcc.function_handler;
467: obj_ptr = fcc.object_ptr;
468: if (Z_TYPE_P(zcallable) == IS_ARRAY) {
469: if (!obj_ptr && alfi.func_ptr && !(alfi.func_ptr->common.fn_flags & ZEND_ACC_STATIC)) {
470: if (do_throw) {
471: zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Passed array specifies a non static method but no object (%s)", error);
472: }
473: if (error) {
474: efree(error);
475: }
476: efree(func_name);
477: RETURN_FALSE;
478: }
479: else if (do_throw) {
480: zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Passed array does not specify %s %smethod (%s)", alfi.func_ptr ? "a callable" : "an existing", !obj_ptr ? "static " : "", error);
481: }
482: if (error) {
483: efree(error);
484: }
485: efree(func_name);
486: RETURN_FALSE;
487: } else if (Z_TYPE_P(zcallable) == IS_STRING) {
488: if (do_throw) {
489: zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Function '%s' not %s (%s)", func_name, alfi.func_ptr ? "callable" : "found", error);
490: }
491: if (error) {
492: efree(error);
493: }
494: efree(func_name);
495: RETURN_FALSE;
496: } else {
497: if (do_throw) {
498: zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Illegal value passed (%s)", error);
499: }
500: if (error) {
501: efree(error);
502: }
503: efree(func_name);
504: RETURN_FALSE;
505: }
506: }
507: alfi.closure = NULL;
508: alfi.ce = fcc.calling_scope;
509: alfi.func_ptr = fcc.function_handler;
510: obj_ptr = fcc.object_ptr;
511: if (error) {
512: efree(error);
513: }
514:
515: lc_name = safe_emalloc(func_name_len, 1, sizeof(long) + 1);
516: zend_str_tolower_copy(lc_name, func_name, func_name_len);
517: efree(func_name);
518:
519: if (Z_TYPE_P(zcallable) == IS_OBJECT) {
520: alfi.closure = zcallable;
521: Z_ADDREF_P(zcallable);
522:
523: lc_name = erealloc(lc_name, func_name_len + 2 + sizeof(zend_object_handle));
524: memcpy(lc_name + func_name_len, &Z_OBJ_HANDLE_P(zcallable),
525: sizeof(zend_object_handle));
526: func_name_len += sizeof(zend_object_handle);
527: lc_name[func_name_len] = '\0';
528: }
529:
530: if (SPL_G(autoload_functions) && zend_hash_exists(SPL_G(autoload_functions), (char*)lc_name, func_name_len+1)) {
531: if (alfi.closure) {
532: Z_DELREF_P(zcallable);
533: }
534: goto skip;
535: }
536:
537: if (obj_ptr && !(alfi.func_ptr->common.fn_flags & ZEND_ACC_STATIC)) {
538: /* add object id to the hash to ensure uniqueness, for more reference look at bug #40091 */
539: lc_name = erealloc(lc_name, func_name_len + 2 + sizeof(zend_object_handle));
540: memcpy(lc_name + func_name_len, &Z_OBJ_HANDLE_P(obj_ptr), sizeof(zend_object_handle));
541: func_name_len += sizeof(zend_object_handle);
542: lc_name[func_name_len] = '\0';
543: alfi.obj = obj_ptr;
544: Z_ADDREF_P(alfi.obj);
545: } else {
546: alfi.obj = NULL;
547: }
548:
549: if (!SPL_G(autoload_functions)) {
550: ALLOC_HASHTABLE(SPL_G(autoload_functions));
551: zend_hash_init(SPL_G(autoload_functions), 1, NULL, (dtor_func_t) autoload_func_info_dtor, 0);
552: }
553:
554: zend_hash_find(EG(function_table), "spl_autoload", sizeof("spl_autoload"), (void **) &spl_func_ptr);
555:
556: if (EG(autoload_func) == spl_func_ptr) { /* registered already, so we insert that first */
557: autoload_func_info spl_alfi;
558:
559: spl_alfi.func_ptr = spl_func_ptr;
560: spl_alfi.obj = NULL;
561: spl_alfi.ce = NULL;
562: spl_alfi.closure = NULL;
563: zend_hash_add(SPL_G(autoload_functions), "spl_autoload", sizeof("spl_autoload"), &spl_alfi, sizeof(autoload_func_info), NULL);
564: if (prepend && SPL_G(autoload_functions)->nNumOfElements > 1) {
565: /* Move the newly created element to the head of the hashtable */
566: HT_MOVE_TAIL_TO_HEAD(SPL_G(autoload_functions));
567: }
568: }
569:
570: zend_hash_add(SPL_G(autoload_functions), lc_name, func_name_len+1, &alfi.func_ptr, sizeof(autoload_func_info), NULL);
571: if (prepend && SPL_G(autoload_functions)->nNumOfElements > 1) {
572: /* Move the newly created element to the head of the hashtable */
573: HT_MOVE_TAIL_TO_HEAD(SPL_G(autoload_functions));
574: }
575: skip:
576: efree(lc_name);
577: }
578:
579: if (SPL_G(autoload_functions)) {
580: zend_hash_find(EG(function_table), "spl_autoload_call", sizeof("spl_autoload_call"), (void **) &EG(autoload_func));
581: } else {
582: zend_hash_find(EG(function_table), "spl_autoload", sizeof("spl_autoload"), (void **) &EG(autoload_func));
583: }
584: RETURN_TRUE;
585: } /* }}} */
586:
587: /* {{{ proto bool spl_autoload_unregister(mixed autoload_function)
588: Unregister given function as __autoload() implementation */
589: PHP_FUNCTION(spl_autoload_unregister)
590: {
591: char *func_name, *error = NULL;
592: int func_name_len;
593: char *lc_name = NULL;
594: zval *zcallable;
595: int success = FAILURE;
596: zend_function *spl_func_ptr;
597: zval *obj_ptr;
598: zend_fcall_info_cache fcc;
599:
600: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &zcallable) == FAILURE) {
601: return;
602: }
603:
604: if (!zend_is_callable_ex(zcallable, NULL, IS_CALLABLE_CHECK_SYNTAX_ONLY, &func_name, &func_name_len, &fcc, &error TSRMLS_CC)) {
605: zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Unable to unregister invalid function (%s)", error);
606: if (error) {
607: efree(error);
608: }
609: if (func_name) {
610: efree(func_name);
611: }
612: RETURN_FALSE;
613: }
614: obj_ptr = fcc.object_ptr;
615: if (error) {
616: efree(error);
617: }
618:
619: lc_name = safe_emalloc(func_name_len, 1, sizeof(long) + 1);
620: zend_str_tolower_copy(lc_name, func_name, func_name_len);
621: efree(func_name);
622:
623: if (Z_TYPE_P(zcallable) == IS_OBJECT) {
624: lc_name = erealloc(lc_name, func_name_len + 2 + sizeof(zend_object_handle));
625: memcpy(lc_name + func_name_len, &Z_OBJ_HANDLE_P(zcallable),
626: sizeof(zend_object_handle));
627: func_name_len += sizeof(zend_object_handle);
628: lc_name[func_name_len] = '\0';
629: }
630:
631: if (SPL_G(autoload_functions)) {
632: if (func_name_len == sizeof("spl_autoload_call")-1 && !strcmp(lc_name, "spl_autoload_call")) {
633: /* remove all */
634: zend_hash_destroy(SPL_G(autoload_functions));
635: FREE_HASHTABLE(SPL_G(autoload_functions));
636: SPL_G(autoload_functions) = NULL;
637: EG(autoload_func) = NULL;
638: success = SUCCESS;
639: } else {
640: /* remove specific */
641: success = zend_hash_del(SPL_G(autoload_functions), lc_name, func_name_len+1);
642: if (success != SUCCESS && obj_ptr) {
643: lc_name = erealloc(lc_name, func_name_len + 2 + sizeof(zend_object_handle));
644: memcpy(lc_name + func_name_len, &Z_OBJ_HANDLE_P(obj_ptr), sizeof(zend_object_handle));
645: func_name_len += sizeof(zend_object_handle);
646: lc_name[func_name_len] = '\0';
647: success = zend_hash_del(SPL_G(autoload_functions), lc_name, func_name_len+1);
648: }
649: }
650: } else if (func_name_len == sizeof("spl_autoload")-1 && !strcmp(lc_name, "spl_autoload")) {
651: /* register single spl_autoload() */
652: zend_hash_find(EG(function_table), "spl_autoload", sizeof("spl_autoload"), (void **) &spl_func_ptr);
653:
654: if (EG(autoload_func) == spl_func_ptr) {
655: success = SUCCESS;
656: EG(autoload_func) = NULL;
657: }
658: }
659:
660: efree(lc_name);
661: RETURN_BOOL(success == SUCCESS);
662: } /* }}} */
663:
664: /* {{{ proto false|array spl_autoload_functions()
665: Return all registered __autoload() functionns */
666: PHP_FUNCTION(spl_autoload_functions)
667: {
668: zend_function *fptr;
669: HashPosition function_pos;
670: autoload_func_info *alfi;
671:
672: if (zend_parse_parameters_none() == FAILURE) {
673: return;
674: }
675:
676: if (!EG(autoload_func)) {
677: if (zend_hash_find(EG(function_table), ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME), (void **) &fptr) == SUCCESS) {
678: array_init(return_value);
679: add_next_index_stringl(return_value, ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME)-1, 1);
680: return;
681: }
682: RETURN_FALSE;
683: }
684:
685: zend_hash_find(EG(function_table), "spl_autoload_call", sizeof("spl_autoload_call"), (void **) &fptr);
686:
687: if (EG(autoload_func) == fptr) {
688: array_init(return_value);
689: zend_hash_internal_pointer_reset_ex(SPL_G(autoload_functions), &function_pos);
690: while(zend_hash_has_more_elements_ex(SPL_G(autoload_functions), &function_pos) == SUCCESS) {
691: zend_hash_get_current_data_ex(SPL_G(autoload_functions), (void **) &alfi, &function_pos);
692: if (alfi->closure) {
693: Z_ADDREF_P(alfi->closure);
694: add_next_index_zval(return_value, alfi->closure);
695: } else if (alfi->func_ptr->common.scope) {
696: zval *tmp;
697: MAKE_STD_ZVAL(tmp);
698: array_init(tmp);
699:
700: if (alfi->obj) {
701: Z_ADDREF_P(alfi->obj);
702: add_next_index_zval(tmp, alfi->obj);
703: } else {
704: add_next_index_string(tmp, alfi->ce->name, 1);
705: }
706: add_next_index_string(tmp, alfi->func_ptr->common.function_name, 1);
707: add_next_index_zval(return_value, tmp);
708: } else
709: add_next_index_string(return_value, alfi->func_ptr->common.function_name, 1);
710:
711: zend_hash_move_forward_ex(SPL_G(autoload_functions), &function_pos);
712: }
713: return;
714: }
715:
716: array_init(return_value);
717: add_next_index_string(return_value, EG(autoload_func)->common.function_name, 1);
718: } /* }}} */
719:
720: /* {{{ proto string spl_object_hash(object obj)
721: Return hash id for given object */
722: PHP_FUNCTION(spl_object_hash)
723: {
724: zval *obj;
725: char* hash;
726:
727: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "o", &obj) == FAILURE) {
728: return;
729: }
730:
731: hash = emalloc(33);
732: php_spl_object_hash(obj, hash TSRMLS_CC);
733:
734: RETVAL_STRING(hash, 0);
735: }
736: /* }}} */
737:
738: PHPAPI void php_spl_object_hash(zval *obj, char *result TSRMLS_DC) /* {{{*/
739: {
740: intptr_t hash_handle, hash_handlers;
741: char *hex;
742:
743: if (!SPL_G(hash_mask_init)) {
744: if (!BG(mt_rand_is_seeded)) {
745: php_mt_srand(GENERATE_SEED() TSRMLS_CC);
746: }
747:
748: SPL_G(hash_mask_handle) = (intptr_t)(php_mt_rand(TSRMLS_C) >> 1);
749: SPL_G(hash_mask_handlers) = (intptr_t)(php_mt_rand(TSRMLS_C) >> 1);
750: SPL_G(hash_mask_init) = 1;
751: }
752:
753: hash_handle = SPL_G(hash_mask_handle)^(intptr_t)Z_OBJ_HANDLE_P(obj);
754: hash_handlers = SPL_G(hash_mask_handlers)^(intptr_t)Z_OBJ_HT_P(obj);
755:
756: spprintf(&hex, 32, "%016x%016x", hash_handle, hash_handlers);
757:
758: strlcpy(result, hex, 33);
759: efree(hex);
760: }
761: /* }}} */
762:
763: int spl_build_class_list_string(zval **entry, char **list TSRMLS_DC) /* {{{ */
764: {
765: char *res;
766:
767: spprintf(&res, 0, "%s, %s", *list, Z_STRVAL_PP(entry));
768: efree(*list);
769: *list = res;
770: return ZEND_HASH_APPLY_KEEP;
771: } /* }}} */
772:
773: /* {{{ PHP_MINFO(spl)
774: */
775: PHP_MINFO_FUNCTION(spl)
776: {
777: zval list;
778: char *strg;
779:
780: php_info_print_table_start();
781: php_info_print_table_header(2, "SPL support", "enabled");
782:
783: INIT_PZVAL(&list);
784: array_init(&list);
785: SPL_LIST_CLASSES(&list, 0, 1, ZEND_ACC_INTERFACE)
786: strg = estrdup("");
787: zend_hash_apply_with_argument(Z_ARRVAL_P(&list), (apply_func_arg_t)spl_build_class_list_string, &strg TSRMLS_CC);
788: zval_dtor(&list);
789: php_info_print_table_row(2, "Interfaces", strg + 2);
790: efree(strg);
791:
792: INIT_PZVAL(&list);
793: array_init(&list);
794: SPL_LIST_CLASSES(&list, 0, -1, ZEND_ACC_INTERFACE)
795: strg = estrdup("");
796: zend_hash_apply_with_argument(Z_ARRVAL_P(&list), (apply_func_arg_t)spl_build_class_list_string, &strg TSRMLS_CC);
797: zval_dtor(&list);
798: php_info_print_table_row(2, "Classes", strg + 2);
799: efree(strg);
800:
801: php_info_print_table_end();
802: }
803: /* }}} */
804:
805: /* {{{ arginfo */
806: ZEND_BEGIN_ARG_INFO_EX(arginfo_iterator_to_array, 0, 0, 1)
807: ZEND_ARG_OBJ_INFO(0, iterator, Traversable, 0)
808: ZEND_ARG_INFO(0, use_keys)
809: ZEND_END_ARG_INFO();
810:
811: ZEND_BEGIN_ARG_INFO(arginfo_iterator, 0)
812: ZEND_ARG_OBJ_INFO(0, iterator, Traversable, 0)
813: ZEND_END_ARG_INFO();
814:
815: ZEND_BEGIN_ARG_INFO_EX(arginfo_iterator_apply, 0, 0, 2)
816: ZEND_ARG_OBJ_INFO(0, iterator, Traversable, 0)
817: ZEND_ARG_INFO(0, function)
818: ZEND_ARG_ARRAY_INFO(0, args, 1)
819: ZEND_END_ARG_INFO();
820:
821: ZEND_BEGIN_ARG_INFO_EX(arginfo_class_parents, 0, 0, 1)
822: ZEND_ARG_INFO(0, instance)
823: ZEND_ARG_INFO(0, autoload)
824: ZEND_END_ARG_INFO()
825:
826: ZEND_BEGIN_ARG_INFO_EX(arginfo_class_implements, 0, 0, 1)
827: ZEND_ARG_INFO(0, what)
828: ZEND_ARG_INFO(0, autoload)
829: ZEND_END_ARG_INFO()
830:
831: ZEND_BEGIN_ARG_INFO(arginfo_spl_classes, 0)
832: ZEND_END_ARG_INFO()
833:
834: ZEND_BEGIN_ARG_INFO(arginfo_spl_autoload_functions, 0)
835: ZEND_END_ARG_INFO()
836:
837: ZEND_BEGIN_ARG_INFO_EX(arginfo_spl_autoload, 0, 0, 1)
838: ZEND_ARG_INFO(0, class_name)
839: ZEND_ARG_INFO(0, file_extensions)
840: ZEND_END_ARG_INFO()
841:
842: ZEND_BEGIN_ARG_INFO_EX(arginfo_spl_autoload_extensions, 0, 0, 0)
843: ZEND_ARG_INFO(0, file_extensions)
844: ZEND_END_ARG_INFO()
845:
846: ZEND_BEGIN_ARG_INFO_EX(arginfo_spl_autoload_call, 0, 0, 1)
847: ZEND_ARG_INFO(0, class_name)
848: ZEND_END_ARG_INFO()
849:
850: ZEND_BEGIN_ARG_INFO_EX(arginfo_spl_autoload_register, 0, 0, 0)
851: ZEND_ARG_INFO(0, autoload_function)
852: ZEND_END_ARG_INFO()
853:
854: ZEND_BEGIN_ARG_INFO_EX(arginfo_spl_autoload_unregister, 0, 0, 1)
855: ZEND_ARG_INFO(0, autoload_function)
856: ZEND_END_ARG_INFO()
857:
858: ZEND_BEGIN_ARG_INFO_EX(arginfo_spl_object_hash, 0, 0, 1)
859: ZEND_ARG_INFO(0, obj)
860: ZEND_END_ARG_INFO()
861: /* }}} */
862:
863: /* {{{ spl_functions
864: */
865: const zend_function_entry spl_functions[] = {
866: PHP_FE(spl_classes, arginfo_spl_classes)
867: PHP_FE(spl_autoload, arginfo_spl_autoload)
868: PHP_FE(spl_autoload_extensions, arginfo_spl_autoload_extensions)
869: PHP_FE(spl_autoload_register, arginfo_spl_autoload_register)
870: PHP_FE(spl_autoload_unregister, arginfo_spl_autoload_unregister)
871: PHP_FE(spl_autoload_functions, arginfo_spl_autoload_functions)
872: PHP_FE(spl_autoload_call, arginfo_spl_autoload_call)
873: PHP_FE(class_parents, arginfo_class_parents)
874: PHP_FE(class_implements, arginfo_class_implements)
875: PHP_FE(spl_object_hash, arginfo_spl_object_hash)
876: #ifdef SPL_ITERATORS_H
877: PHP_FE(iterator_to_array, arginfo_iterator_to_array)
878: PHP_FE(iterator_count, arginfo_iterator)
879: PHP_FE(iterator_apply, arginfo_iterator_apply)
880: #endif /* SPL_ITERATORS_H */
881: PHP_FE_END
882: };
883: /* }}} */
884:
885: /* {{{ PHP_MINIT_FUNCTION(spl)
886: */
887: PHP_MINIT_FUNCTION(spl)
888: {
889: PHP_MINIT(spl_exceptions)(INIT_FUNC_ARGS_PASSTHRU);
890: PHP_MINIT(spl_iterators)(INIT_FUNC_ARGS_PASSTHRU);
891: PHP_MINIT(spl_array)(INIT_FUNC_ARGS_PASSTHRU);
892: PHP_MINIT(spl_directory)(INIT_FUNC_ARGS_PASSTHRU);
893: PHP_MINIT(spl_dllist)(INIT_FUNC_ARGS_PASSTHRU);
894: PHP_MINIT(spl_heap)(INIT_FUNC_ARGS_PASSTHRU);
895: PHP_MINIT(spl_fixedarray)(INIT_FUNC_ARGS_PASSTHRU);
896: PHP_MINIT(spl_observer)(INIT_FUNC_ARGS_PASSTHRU);
897:
898: return SUCCESS;
899: }
900: /* }}} */
901:
902: PHP_RINIT_FUNCTION(spl) /* {{{ */
903: {
904: SPL_G(autoload_extensions) = NULL;
905: SPL_G(autoload_extensions_len) = 0;
906: SPL_G(autoload_functions) = NULL;
907: SPL_G(hash_mask_init) = 0;
908: return SUCCESS;
909: } /* }}} */
910:
911: PHP_RSHUTDOWN_FUNCTION(spl) /* {{{ */
912: {
913: if (SPL_G(autoload_extensions)) {
914: efree(SPL_G(autoload_extensions));
915: SPL_G(autoload_extensions) = NULL;
916: SPL_G(autoload_extensions_len) = 0;
917: }
918: if (SPL_G(autoload_functions)) {
919: zend_hash_destroy(SPL_G(autoload_functions));
920: FREE_HASHTABLE(SPL_G(autoload_functions));
921: SPL_G(autoload_functions) = NULL;
922: }
923: if (SPL_G(hash_mask_init)) {
924: SPL_G(hash_mask_init) = 0;
925: }
926: return SUCCESS;
927: } /* }}} */
928:
929: /* {{{ spl_module_entry
930: */
931: zend_module_entry spl_module_entry = {
932: STANDARD_MODULE_HEADER,
933: "SPL",
934: spl_functions,
935: PHP_MINIT(spl),
936: NULL,
937: PHP_RINIT(spl),
938: PHP_RSHUTDOWN(spl),
939: PHP_MINFO(spl),
940: "0.2",
941: PHP_MODULE_GLOBALS(spl),
942: PHP_GINIT(spl),
943: NULL,
944: NULL,
945: STANDARD_MODULE_PROPERTIES_EX
946: };
947: /* }}} */
948:
949: /*
950: * Local variables:
951: * tab-width: 4
952: * c-basic-offset: 4
953: * End:
954: * vim600: fdm=marker
955: * vim: noet sw=4 ts=4
956: */
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to php_spl.c CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / php / ext / spl