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php_spl.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2013 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Marcus Boerger <[email protected]> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "php_main.h"
#include "ext/standard/info.h"
#include "php_spl.h"
#include "spl_functions.h"
#include "spl_engine.h"
#include "spl_array.h"
#include "spl_directory.h"
#include "spl_iterators.h"
#include "spl_exceptions.h"
#include "spl_observer.h"
#include "spl_dllist.h"
#include "spl_fixedarray.h"
#include "spl_heap.h"
#include "zend_exceptions.h"
#include "zend_interfaces.h"
#include "ext/standard/php_rand.h"
#include "ext/standard/php_lcg.h"
#include "main/snprintf.h"
#ifdef COMPILE_DL_SPL
ZEND_GET_MODULE(spl)
#endif
ZEND_DECLARE_MODULE_GLOBALS(spl)
#define SPL_DEFAULT_FILE_EXTENSIONS ".inc,.php"
/* {{{ PHP_GINIT_FUNCTION
*/
static PHP_GINIT_FUNCTION(spl)
{
spl_globals->autoload_extensions = NULL;
spl_globals->autoload_extensions_len = 0;
spl_globals->autoload_functions = NULL;
spl_globals->autoload_running = 0;
}
/* }}} */
static zend_class_entry * spl_find_ce_by_name(char *name, int len, zend_bool autoload TSRMLS_DC)
{
zend_class_entry **ce;
int found;
if (!autoload) {
char *lc_name;
ALLOCA_FLAG(use_heap)
lc_name = do_alloca(len + 1, use_heap);
zend_str_tolower_copy(lc_name, name, len);
found = zend_hash_find(EG(class_table), lc_name, len +1, (void **) &ce);
free_alloca(lc_name, use_heap);
} else {
found = zend_lookup_class(name, len, &ce TSRMLS_CC);
}
if (found != SUCCESS) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Class %s does not exist%s", name, autoload ? " and could not be loaded" : "");
return NULL;
}
return *ce;
}
/* {{{ proto array class_parents(object instance [, boolean autoload = true])
Return an array containing the names of all parent classes */
PHP_FUNCTION(class_parents)
{
zval *obj;
zend_class_entry *parent_class, *ce;
zend_bool autoload = 1;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|b", &obj, &autoload) == FAILURE) {
RETURN_FALSE;
}
if (Z_TYPE_P(obj) != IS_OBJECT && Z_TYPE_P(obj) != IS_STRING) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "object or string expected");
RETURN_FALSE;
}
if (Z_TYPE_P(obj) == IS_STRING) {
if (NULL == (ce = spl_find_ce_by_name(Z_STRVAL_P(obj), Z_STRLEN_P(obj), autoload TSRMLS_CC))) {
RETURN_FALSE;
}
} else {
ce = Z_OBJCE_P(obj);
}
array_init(return_value);
parent_class = ce->parent;
while (parent_class) {
spl_add_class_name(return_value, parent_class, 0, 0 TSRMLS_CC);
parent_class = parent_class->parent;
}
}
/* }}} */
/* {{{ proto array class_implements(mixed what [, bool autoload ])
Return all classes and interfaces implemented by SPL */
PHP_FUNCTION(class_implements)
{
zval *obj;
zend_bool autoload = 1;
zend_class_entry *ce;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|b", &obj, &autoload) == FAILURE) {
RETURN_FALSE;
}
if (Z_TYPE_P(obj) != IS_OBJECT && Z_TYPE_P(obj) != IS_STRING) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "object or string expected");
RETURN_FALSE;
}
if (Z_TYPE_P(obj) == IS_STRING) {
if (NULL == (ce = spl_find_ce_by_name(Z_STRVAL_P(obj), Z_STRLEN_P(obj), autoload TSRMLS_CC))) {
RETURN_FALSE;
}
} else {
ce = Z_OBJCE_P(obj);
}
array_init(return_value);
spl_add_interfaces(return_value, ce, 1, ZEND_ACC_INTERFACE TSRMLS_CC);
}
/* }}} */
/* {{{ proto array class_uses(mixed what [, bool autoload ])
Return all traits used by a class. */
PHP_FUNCTION(class_uses)
{
zval *obj;
zend_bool autoload = 1;
zend_class_entry *ce;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|b", &obj, &autoload) == FAILURE) {
RETURN_FALSE;
}
if (Z_TYPE_P(obj) != IS_OBJECT && Z_TYPE_P(obj) != IS_STRING) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "object or string expected");
RETURN_FALSE;
}
if (Z_TYPE_P(obj) == IS_STRING) {
if (NULL == (ce = spl_find_ce_by_name(Z_STRVAL_P(obj), Z_STRLEN_P(obj), autoload TSRMLS_CC))) {
RETURN_FALSE;
}
} else {
ce = Z_OBJCE_P(obj);
}
array_init(return_value);
spl_add_traits(return_value, ce, 1, ZEND_ACC_TRAIT TSRMLS_CC);
}
/* }}} */
#define SPL_ADD_CLASS(class_name, z_list, sub, allow, ce_flags) \
spl_add_classes(spl_ce_ ## class_name, z_list, sub, allow, ce_flags TSRMLS_CC)
#define SPL_LIST_CLASSES(z_list, sub, allow, ce_flags) \
SPL_ADD_CLASS(AppendIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(ArrayIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(ArrayObject, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(BadFunctionCallException, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(BadMethodCallException, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(CachingIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(CallbackFilterIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(Countable, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(DirectoryIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(DomainException, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(EmptyIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(FilesystemIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(FilterIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(GlobIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(InfiniteIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(InvalidArgumentException, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(IteratorIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(LengthException, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(LimitIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(LogicException, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(MultipleIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(NoRewindIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(OuterIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(OutOfBoundsException, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(OutOfRangeException, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(OverflowException, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(ParentIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(RangeException, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(RecursiveArrayIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(RecursiveCachingIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(RecursiveCallbackFilterIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(RecursiveDirectoryIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(RecursiveFilterIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(RecursiveIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(RecursiveIteratorIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(RecursiveRegexIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(RecursiveTreeIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(RegexIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(RuntimeException, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(SeekableIterator, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(SplDoublyLinkedList, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(SplFileInfo, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(SplFileObject, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(SplFixedArray, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(SplHeap, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(SplMinHeap, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(SplMaxHeap, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(SplObjectStorage, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(SplObserver, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(SplPriorityQueue, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(SplQueue, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(SplStack, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(SplSubject, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(SplTempFileObject, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(UnderflowException, z_list, sub, allow, ce_flags); \
SPL_ADD_CLASS(UnexpectedValueException, z_list, sub, allow, ce_flags); \
/* {{{ proto array spl_classes()
Return an array containing the names of all clsses and interfaces defined in SPL */
PHP_FUNCTION(spl_classes)
{
array_init(return_value);
SPL_LIST_CLASSES(return_value, 0, 0, 0)
}
/* }}} */
static int spl_autoload(const char *class_name, const char * lc_name, int class_name_len, const char * file_extension TSRMLS_DC) /* {{{ */
{
char *class_file;
int class_file_len;
int dummy = 1;
zend_file_handle file_handle;
zend_op_array *new_op_array;
zval *result = NULL;
int ret;
class_file_len = spprintf(&class_file, 0, "%s%s", lc_name, file_extension);
#if DEFAULT_SLASH != '\\'
{
char *ptr = class_file;
char *end = ptr + class_file_len;
while ((ptr = memchr(ptr, '\\', (end - ptr))) != NULL) {
*ptr = DEFAULT_SLASH;
}
}
#endif
ret = php_stream_open_for_zend_ex(class_file, &file_handle, USE_PATH|STREAM_OPEN_FOR_INCLUDE TSRMLS_CC);
if (ret == SUCCESS) {
if (!file_handle.opened_path) {
file_handle.opened_path = estrndup(class_file, class_file_len);
}
if (zend_hash_add(&EG(included_files), file_handle.opened_path, strlen(file_handle.opened_path)+1, (void *)&dummy, sizeof(int), NULL)==SUCCESS) {
new_op_array = zend_compile_file(&file_handle, ZEND_REQUIRE TSRMLS_CC);
zend_destroy_file_handle(&file_handle TSRMLS_CC);
} else {
new_op_array = NULL;
zend_file_handle_dtor(&file_handle TSRMLS_CC);
}
if (new_op_array) {
EG(return_value_ptr_ptr) = &result;
EG(active_op_array) = new_op_array;
if (!EG(active_symbol_table)) {
zend_rebuild_symbol_table(TSRMLS_C);
}
zend_execute(new_op_array TSRMLS_CC);
destroy_op_array(new_op_array TSRMLS_CC);
efree(new_op_array);
if (!EG(exception)) {
if (EG(return_value_ptr_ptr)) {
zval_ptr_dtor(EG(return_value_ptr_ptr));
}
}
efree(class_file);
return zend_hash_exists(EG(class_table), (char*)lc_name, class_name_len+1);
}
}
efree(class_file);
return 0;
} /* }}} */
/* {{{ proto void spl_autoload(string class_name [, string file_extensions])
Default implementation for __autoload() */
PHP_FUNCTION(spl_autoload)
{
char *class_name, *lc_name, *file_exts = SPL_G(autoload_extensions);
int class_name_len, file_exts_len = SPL_G(autoload_extensions_len), found = 0;
char *copy, *pos1, *pos2;
zval **original_return_value = EG(return_value_ptr_ptr);
zend_op **original_opline_ptr = EG(opline_ptr);
zend_op_array *original_active_op_array = EG(active_op_array);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s", &class_name, &class_name_len, &file_exts, &file_exts_len) == FAILURE) {
RETURN_FALSE;
}
if (file_exts == NULL) { /* autoload_extensions is not intialzed, set to defaults */
copy = pos1 = estrndup(SPL_DEFAULT_FILE_EXTENSIONS, sizeof(SPL_DEFAULT_FILE_EXTENSIONS)-1);
} else {
copy = pos1 = estrndup(file_exts, file_exts_len);
}
lc_name = zend_str_tolower_dup(class_name, class_name_len);
while(pos1 && *pos1 && !EG(exception)) {
EG(return_value_ptr_ptr) = original_return_value;
EG(opline_ptr) = original_opline_ptr;
EG(active_op_array) = original_active_op_array;
pos2 = strchr(pos1, ',');
if (pos2) *pos2 = '\0';
if (spl_autoload(class_name, lc_name, class_name_len, pos1 TSRMLS_CC)) {
found = 1;
break; /* loaded */
}
pos1 = pos2 ? pos2 + 1 : NULL;
}
efree(lc_name);
if (copy) {
efree(copy);
}
EG(return_value_ptr_ptr) = original_return_value;
EG(opline_ptr) = original_opline_ptr;
EG(active_op_array) = original_active_op_array;
if (!found && !SPL_G(autoload_running)) {
/* For internal errors, we generate E_ERROR, for direct calls an exception is thrown.
* The "scope" is determined by an opcode, if it is ZEND_FETCH_CLASS we know function was called indirectly by
* the Zend engine.
*/
if (active_opline->opcode != ZEND_FETCH_CLASS) {
zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Class %s could not be loaded", class_name);
} else {
php_error_docref(NULL TSRMLS_CC, E_ERROR, "Class %s could not be loaded", class_name);
}
}
} /* }}} */
/* {{{ proto string spl_autoload_extensions([string file_extensions])
Register and return default file extensions for spl_autoload */
PHP_FUNCTION(spl_autoload_extensions)
{
char *file_exts = NULL;
int file_exts_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &file_exts, &file_exts_len) == FAILURE) {
return;
}
if (file_exts) {
if (SPL_G(autoload_extensions)) {
efree(SPL_G(autoload_extensions));
}
SPL_G(autoload_extensions) = estrndup(file_exts, file_exts_len);
SPL_G(autoload_extensions_len) = file_exts_len;
}
if (SPL_G(autoload_extensions) == NULL) {
RETURN_STRINGL(SPL_DEFAULT_FILE_EXTENSIONS, sizeof(SPL_DEFAULT_FILE_EXTENSIONS) - 1, 1);
} else {
RETURN_STRINGL(SPL_G(autoload_extensions), SPL_G(autoload_extensions_len), 1);
}
} /* }}} */
typedef struct {
zend_function *func_ptr;
zval *obj;
zval *closure;
zend_class_entry *ce;
} autoload_func_info;
static void autoload_func_info_dtor(autoload_func_info *alfi)
{
if (alfi->obj) {
zval_ptr_dtor(&alfi->obj);
}
if (alfi->closure) {
zval_ptr_dtor(&alfi->closure);
}
}
/* {{{ proto void spl_autoload_call(string class_name)
Try all registerd autoload function to load the requested class */
PHP_FUNCTION(spl_autoload_call)
{
zval *class_name, *retval = NULL;
int class_name_len;
char *func_name, *lc_name;
uint func_name_len;
ulong dummy;
HashPosition function_pos;
autoload_func_info *alfi;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &class_name) == FAILURE || Z_TYPE_P(class_name) != IS_STRING) {
return;
}
if (SPL_G(autoload_functions)) {
int l_autoload_running = SPL_G(autoload_running);
SPL_G(autoload_running) = 1;
class_name_len = Z_STRLEN_P(class_name);
lc_name = zend_str_tolower_dup(Z_STRVAL_P(class_name), class_name_len);
zend_hash_internal_pointer_reset_ex(SPL_G(autoload_functions), &function_pos);
while(zend_hash_has_more_elements_ex(SPL_G(autoload_functions), &function_pos) == SUCCESS) {
zend_hash_get_current_key_ex(SPL_G(autoload_functions), &func_name, &func_name_len, &dummy, 0, &function_pos);
zend_hash_get_current_data_ex(SPL_G(autoload_functions), (void **) &alfi, &function_pos);
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);
zend_exception_save(TSRMLS_C);
if (retval) {
zval_ptr_dtor(&retval);
retval = NULL;
}
if (zend_hash_exists(EG(class_table), lc_name, class_name_len + 1)) {
break;
}
zend_hash_move_forward_ex(SPL_G(autoload_functions), &function_pos);
}
zend_exception_restore(TSRMLS_C);
efree(lc_name);
SPL_G(autoload_running) = l_autoload_running;
} else {
/* do not use or overwrite &EG(autoload_func) here */
zend_call_method_with_1_params(NULL, NULL, NULL, "spl_autoload", NULL, class_name);
}
} /* }}} */
#define HT_MOVE_TAIL_TO_HEAD(ht) \
(ht)->pListTail->pListNext = (ht)->pListHead; \
(ht)->pListHead = (ht)->pListTail; \
(ht)->pListTail = (ht)->pListHead->pListLast; \
(ht)->pListHead->pListNext->pListLast = (ht)->pListHead;\
(ht)->pListTail->pListNext = NULL; \
(ht)->pListHead->pListLast = NULL;
/* {{{ proto bool spl_autoload_register([mixed autoload_function = "spl_autoload" [, throw = true [, prepend]]])
Register given function as __autoload() implementation */
PHP_FUNCTION(spl_autoload_register)
{
char *func_name, *error = NULL;
int func_name_len;
char *lc_name = NULL;
zval *zcallable = NULL;
zend_bool do_throw = 1;
zend_bool prepend = 0;
zend_function *spl_func_ptr;
autoload_func_info alfi;
zval *obj_ptr;
zend_fcall_info_cache fcc;
if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "|zbb", &zcallable, &do_throw, &prepend) == FAILURE) {
return;
}
if (ZEND_NUM_ARGS()) {
if (Z_TYPE_P(zcallable) == IS_STRING) {
if (Z_STRLEN_P(zcallable) == sizeof("spl_autoload_call") - 1) {
if (!zend_binary_strcasecmp(Z_STRVAL_P(zcallable), sizeof("spl_autoload_call"), "spl_autoload_call", sizeof("spl_autoload_call"))) {
if (do_throw) {
zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Function spl_autoload_call() cannot be registered");
}
RETURN_FALSE;
}
}
}
if (!zend_is_callable_ex(zcallable, NULL, IS_CALLABLE_STRICT, &func_name, &func_name_len, &fcc, &error TSRMLS_CC)) {
alfi.ce = fcc.calling_scope;
alfi.func_ptr = fcc.function_handler;
obj_ptr = fcc.object_ptr;
if (Z_TYPE_P(zcallable) == IS_ARRAY) {
if (!obj_ptr && alfi.func_ptr && !(alfi.func_ptr->common.fn_flags & ZEND_ACC_STATIC)) {
if (do_throw) {
zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Passed array specifies a non static method but no object (%s)", error);
}
if (error) {
efree(error);
}
efree(func_name);
RETURN_FALSE;
}
else if (do_throw) {
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);
}
if (error) {
efree(error);
}
efree(func_name);
RETURN_FALSE;
} else if (Z_TYPE_P(zcallable) == IS_STRING) {
if (do_throw) {
zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Function '%s' not %s (%s)", func_name, alfi.func_ptr ? "callable" : "found", error);
}
if (error) {
efree(error);
}
efree(func_name);
RETURN_FALSE;
} else {
if (do_throw) {
zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Illegal value passed (%s)", error);
}
if (error) {
efree(error);
}
efree(func_name);
RETURN_FALSE;
}
}
alfi.closure = NULL;
alfi.ce = fcc.calling_scope;
alfi.func_ptr = fcc.function_handler;
obj_ptr = fcc.object_ptr;
if (error) {
efree(error);
}
lc_name = safe_emalloc(func_name_len, 1, sizeof(long) + 1);
zend_str_tolower_copy(lc_name, func_name, func_name_len);
efree(func_name);
if (Z_TYPE_P(zcallable) == IS_OBJECT) {
alfi.closure = zcallable;
Z_ADDREF_P(zcallable);
lc_name = erealloc(lc_name, func_name_len + 2 + sizeof(zend_object_handle));
memcpy(lc_name + func_name_len, &Z_OBJ_HANDLE_P(zcallable),
sizeof(zend_object_handle));
func_name_len += sizeof(zend_object_handle);
lc_name[func_name_len] = '\0';
}
if (SPL_G(autoload_functions) && zend_hash_exists(SPL_G(autoload_functions), (char*)lc_name, func_name_len+1)) {
if (alfi.closure) {
Z_DELREF_P(zcallable);
}
goto skip;
}
if (obj_ptr && !(alfi.func_ptr->common.fn_flags & ZEND_ACC_STATIC)) {
/* add object id to the hash to ensure uniqueness, for more reference look at bug #40091 */
lc_name = erealloc(lc_name, func_name_len + 2 + sizeof(zend_object_handle));
memcpy(lc_name + func_name_len, &Z_OBJ_HANDLE_P(obj_ptr), sizeof(zend_object_handle));
func_name_len += sizeof(zend_object_handle);
lc_name[func_name_len] = '\0';
alfi.obj = obj_ptr;
Z_ADDREF_P(alfi.obj);
} else {
alfi.obj = NULL;
}
if (!SPL_G(autoload_functions)) {
ALLOC_HASHTABLE(SPL_G(autoload_functions));
zend_hash_init(SPL_G(autoload_functions), 1, NULL, (dtor_func_t) autoload_func_info_dtor, 0);
}
zend_hash_find(EG(function_table), "spl_autoload", sizeof("spl_autoload"), (void **) &spl_func_ptr);
if (EG(autoload_func) == spl_func_ptr) { /* registered already, so we insert that first */
autoload_func_info spl_alfi;
spl_alfi.func_ptr = spl_func_ptr;
spl_alfi.obj = NULL;
spl_alfi.ce = NULL;
spl_alfi.closure = NULL;
zend_hash_add(SPL_G(autoload_functions), "spl_autoload", sizeof("spl_autoload"), &spl_alfi, sizeof(autoload_func_info), NULL);
if (prepend && SPL_G(autoload_functions)->nNumOfElements > 1) {
/* Move the newly created element to the head of the hashtable */
HT_MOVE_TAIL_TO_HEAD(SPL_G(autoload_functions));
}
}
if (zend_hash_add(SPL_G(autoload_functions), lc_name, func_name_len+1, &alfi.func_ptr, sizeof(autoload_func_info), NULL) == FAILURE) {
if (obj_ptr && !(alfi.func_ptr->common.fn_flags & ZEND_ACC_STATIC)) {
Z_DELREF_P(alfi.obj);
}
if (alfi.closure) {
Z_DELREF_P(alfi.closure);
}
}
if (prepend && SPL_G(autoload_functions)->nNumOfElements > 1) {
/* Move the newly created element to the head of the hashtable */
HT_MOVE_TAIL_TO_HEAD(SPL_G(autoload_functions));
}
skip:
efree(lc_name);
}
if (SPL_G(autoload_functions)) {
zend_hash_find(EG(function_table), "spl_autoload_call", sizeof("spl_autoload_call"), (void **) &EG(autoload_func));
} else {
zend_hash_find(EG(function_table), "spl_autoload", sizeof("spl_autoload"), (void **) &EG(autoload_func));
}
RETURN_TRUE;
} /* }}} */
/* {{{ proto bool spl_autoload_unregister(mixed autoload_function)
Unregister given function as __autoload() implementation */
PHP_FUNCTION(spl_autoload_unregister)
{
char *func_name, *error = NULL;
int func_name_len;
char *lc_name = NULL;
zval *zcallable;
int success = FAILURE;
zend_function *spl_func_ptr;
zval *obj_ptr;
zend_fcall_info_cache fcc;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &zcallable) == FAILURE) {
return;
}
if (!zend_is_callable_ex(zcallable, NULL, IS_CALLABLE_CHECK_SYNTAX_ONLY, &func_name, &func_name_len, &fcc, &error TSRMLS_CC)) {
zend_throw_exception_ex(spl_ce_LogicException, 0 TSRMLS_CC, "Unable to unregister invalid function (%s)", error);
if (error) {
efree(error);
}
if (func_name) {
efree(func_name);
}
RETURN_FALSE;
}
obj_ptr = fcc.object_ptr;
if (error) {
efree(error);
}
lc_name = safe_emalloc(func_name_len, 1, sizeof(long) + 1);
zend_str_tolower_copy(lc_name, func_name, func_name_len);
efree(func_name);
if (Z_TYPE_P(zcallable) == IS_OBJECT) {
lc_name = erealloc(lc_name, func_name_len + 2 + sizeof(zend_object_handle));
memcpy(lc_name + func_name_len, &Z_OBJ_HANDLE_P(zcallable),
sizeof(zend_object_handle));
func_name_len += sizeof(zend_object_handle);
lc_name[func_name_len] = '\0';
}
if (SPL_G(autoload_functions)) {
if (func_name_len == sizeof("spl_autoload_call")-1 && !strcmp(lc_name, "spl_autoload_call")) {
/* remove all */
zend_hash_destroy(SPL_G(autoload_functions));
FREE_HASHTABLE(SPL_G(autoload_functions));
SPL_G(autoload_functions) = NULL;
EG(autoload_func) = NULL;
success = SUCCESS;
} else {
/* remove specific */
success = zend_hash_del(SPL_G(autoload_functions), lc_name, func_name_len+1);
if (success != SUCCESS && obj_ptr) {
lc_name = erealloc(lc_name, func_name_len + 2 + sizeof(zend_object_handle));
memcpy(lc_name + func_name_len, &Z_OBJ_HANDLE_P(obj_ptr), sizeof(zend_object_handle));
func_name_len += sizeof(zend_object_handle);
lc_name[func_name_len] = '\0';
success = zend_hash_del(SPL_G(autoload_functions), lc_name, func_name_len+1);
}
}
} else if (func_name_len == sizeof("spl_autoload")-1 && !strcmp(lc_name, "spl_autoload")) {
/* register single spl_autoload() */
zend_hash_find(EG(function_table), "spl_autoload", sizeof("spl_autoload"), (void **) &spl_func_ptr);
if (EG(autoload_func) == spl_func_ptr) {
success = SUCCESS;
EG(autoload_func) = NULL;
}
}
efree(lc_name);
RETURN_BOOL(success == SUCCESS);
} /* }}} */
/* {{{ proto false|array spl_autoload_functions()
Return all registered __autoload() functionns */
PHP_FUNCTION(spl_autoload_functions)
{
zend_function *fptr;
HashPosition function_pos;
autoload_func_info *alfi;
if (zend_parse_parameters_none() == FAILURE) {
return;
}
if (!EG(autoload_func)) {
if (zend_hash_find(EG(function_table), ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME), (void **) &fptr) == SUCCESS) {
array_init(return_value);
add_next_index_stringl(return_value, ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME)-1, 1);
return;
}
RETURN_FALSE;
}
zend_hash_find(EG(function_table), "spl_autoload_call", sizeof("spl_autoload_call"), (void **) &fptr);
if (EG(autoload_func) == fptr) {
array_init(return_value);
zend_hash_internal_pointer_reset_ex(SPL_G(autoload_functions), &function_pos);
while(zend_hash_has_more_elements_ex(SPL_G(autoload_functions), &function_pos) == SUCCESS) {
zend_hash_get_current_data_ex(SPL_G(autoload_functions), (void **) &alfi, &function_pos);
if (alfi->closure) {
Z_ADDREF_P(alfi->closure);
add_next_index_zval(return_value, alfi->closure);
} else if (alfi->func_ptr->common.scope) {
zval *tmp;
MAKE_STD_ZVAL(tmp);
array_init(tmp);
if (alfi->obj) {
Z_ADDREF_P(alfi->obj);
add_next_index_zval(tmp, alfi->obj);
} else {
add_next_index_string(tmp, alfi->ce->name, 1);
}
add_next_index_string(tmp, alfi->func_ptr->common.function_name, 1);
add_next_index_zval(return_value, tmp);
} else {
if (strncmp(alfi->func_ptr->common.function_name, "__lambda_func", sizeof("__lambda_func") - 1)) {
add_next_index_string(return_value, alfi->func_ptr->common.function_name, 1);
} else {
char *key;
uint len;
long dummy;
zend_hash_get_current_key_ex(SPL_G(autoload_functions), &key, &len, &dummy, 0, &function_pos);
add_next_index_stringl(return_value, key, len - 1, 1);
}
}
zend_hash_move_forward_ex(SPL_G(autoload_functions), &function_pos);
}
return;
}
array_init(return_value);
add_next_index_string(return_value, EG(autoload_func)->common.function_name, 1);
} /* }}} */
/* {{{ proto string spl_object_hash(object obj)
Return hash id for given object */
PHP_FUNCTION(spl_object_hash)
{
zval *obj;
char* hash;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "o", &obj) == FAILURE) {
return;
}
hash = emalloc(33);
php_spl_object_hash(obj, hash TSRMLS_CC);
RETVAL_STRING(hash, 0);
}
/* }}} */
PHPAPI void php_spl_object_hash(zval *obj, char *result TSRMLS_DC) /* {{{*/
{
intptr_t hash_handle, hash_handlers;
char *hex;
if (!SPL_G(hash_mask_init)) {
if (!BG(mt_rand_is_seeded)) {
php_mt_srand(GENERATE_SEED() TSRMLS_CC);
}
SPL_G(hash_mask_handle) = (intptr_t)(php_mt_rand(TSRMLS_C) >> 1);
SPL_G(hash_mask_handlers) = (intptr_t)(php_mt_rand(TSRMLS_C) >> 1);
SPL_G(hash_mask_init) = 1;
}
hash_handle = SPL_G(hash_mask_handle)^(intptr_t)Z_OBJ_HANDLE_P(obj);
hash_handlers = SPL_G(hash_mask_handlers)^(intptr_t)Z_OBJ_HT_P(obj);
spprintf(&hex, 32, "%016lx%016lx", hash_handle, hash_handlers);
strlcpy(result, hex, 33);
efree(hex);
}
/* }}} */
int spl_build_class_list_string(zval **entry, char **list TSRMLS_DC) /* {{{ */
{
char *res;
spprintf(&res, 0, "%s, %s", *list, Z_STRVAL_PP(entry));
efree(*list);
*list = res;
return ZEND_HASH_APPLY_KEEP;
} /* }}} */
/* {{{ PHP_MINFO(spl)
*/
PHP_MINFO_FUNCTION(spl)
{
zval list;
char *strg;
php_info_print_table_start();
php_info_print_table_header(2, "SPL support", "enabled");
INIT_PZVAL(&list);
array_init(&list);
SPL_LIST_CLASSES(&list, 0, 1, ZEND_ACC_INTERFACE)
strg = estrdup("");
zend_hash_apply_with_argument(Z_ARRVAL_P(&list), (apply_func_arg_t)spl_build_class_list_string, &strg TSRMLS_CC);
zval_dtor(&list);
php_info_print_table_row(2, "Interfaces", strg + 2);
efree(strg);
INIT_PZVAL(&list);
array_init(&list);
SPL_LIST_CLASSES(&list, 0, -1, ZEND_ACC_INTERFACE)
strg = estrdup("");
zend_hash_apply_with_argument(Z_ARRVAL_P(&list), (apply_func_arg_t)spl_build_class_list_string, &strg TSRMLS_CC);
zval_dtor(&list);
php_info_print_table_row(2, "Classes", strg + 2);
efree(strg);
php_info_print_table_end();
}
/* }}} */
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginfo_iterator_to_array, 0, 0, 1)
ZEND_ARG_OBJ_INFO(0, iterator, Traversable, 0)
ZEND_ARG_INFO(0, use_keys)
ZEND_END_ARG_INFO();
ZEND_BEGIN_ARG_INFO(arginfo_iterator, 0)
ZEND_ARG_OBJ_INFO(0, iterator, Traversable, 0)
ZEND_END_ARG_INFO();
ZEND_BEGIN_ARG_INFO_EX(arginfo_iterator_apply, 0, 0, 2)
ZEND_ARG_OBJ_INFO(0, iterator, Traversable, 0)
ZEND_ARG_INFO(0, function)
ZEND_ARG_ARRAY_INFO(0, args, 1)
ZEND_END_ARG_INFO();
ZEND_BEGIN_ARG_INFO_EX(arginfo_class_parents, 0, 0, 1)
ZEND_ARG_INFO(0, instance)
ZEND_ARG_INFO(0, autoload)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_class_implements, 0, 0, 1)
ZEND_ARG_INFO(0, what)
ZEND_ARG_INFO(0, autoload)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_class_uses, 0, 0, 1)
ZEND_ARG_INFO(0, what)
ZEND_ARG_INFO(0, autoload)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_spl_classes, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_spl_autoload_functions, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_spl_autoload, 0, 0, 1)
ZEND_ARG_INFO(0, class_name)
ZEND_ARG_INFO(0, file_extensions)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_spl_autoload_extensions, 0, 0, 0)
ZEND_ARG_INFO(0, file_extensions)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_spl_autoload_call, 0, 0, 1)
ZEND_ARG_INFO(0, class_name)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_spl_autoload_register, 0, 0, 0)
ZEND_ARG_INFO(0, autoload_function)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_spl_autoload_unregister, 0, 0, 1)
ZEND_ARG_INFO(0, autoload_function)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_spl_object_hash, 0, 0, 1)
ZEND_ARG_INFO(0, obj)
ZEND_END_ARG_INFO()
/* }}} */
/* {{{ spl_functions
*/
const zend_function_entry spl_functions[] = {
PHP_FE(spl_classes, arginfo_spl_classes)
PHP_FE(spl_autoload, arginfo_spl_autoload)
PHP_FE(spl_autoload_extensions, arginfo_spl_autoload_extensions)
PHP_FE(spl_autoload_register, arginfo_spl_autoload_register)
PHP_FE(spl_autoload_unregister, arginfo_spl_autoload_unregister)
PHP_FE(spl_autoload_functions, arginfo_spl_autoload_functions)
PHP_FE(spl_autoload_call, arginfo_spl_autoload_call)
PHP_FE(class_parents, arginfo_class_parents)
PHP_FE(class_implements, arginfo_class_implements)
PHP_FE(class_uses, arginfo_class_uses)
PHP_FE(spl_object_hash, arginfo_spl_object_hash)
#ifdef SPL_ITERATORS_H
PHP_FE(iterator_to_array, arginfo_iterator_to_array)
PHP_FE(iterator_count, arginfo_iterator)
PHP_FE(iterator_apply, arginfo_iterator_apply)
#endif /* SPL_ITERATORS_H */
PHP_FE_END
};
/* }}} */
/* {{{ PHP_MINIT_FUNCTION(spl)
*/
PHP_MINIT_FUNCTION(spl)
{
PHP_MINIT(spl_exceptions)(INIT_FUNC_ARGS_PASSTHRU);
PHP_MINIT(spl_iterators)(INIT_FUNC_ARGS_PASSTHRU);
PHP_MINIT(spl_array)(INIT_FUNC_ARGS_PASSTHRU);
PHP_MINIT(spl_directory)(INIT_FUNC_ARGS_PASSTHRU);
PHP_MINIT(spl_dllist)(INIT_FUNC_ARGS_PASSTHRU);
PHP_MINIT(spl_heap)(INIT_FUNC_ARGS_PASSTHRU);
PHP_MINIT(spl_fixedarray)(INIT_FUNC_ARGS_PASSTHRU);
PHP_MINIT(spl_observer)(INIT_FUNC_ARGS_PASSTHRU);
return SUCCESS;
}
/* }}} */
PHP_RINIT_FUNCTION(spl) /* {{{ */
{
SPL_G(autoload_extensions) = NULL;
SPL_G(autoload_extensions_len) = 0;
SPL_G(autoload_functions) = NULL;
SPL_G(hash_mask_init) = 0;
return SUCCESS;
} /* }}} */
PHP_RSHUTDOWN_FUNCTION(spl) /* {{{ */
{
if (SPL_G(autoload_extensions)) {
efree(SPL_G(autoload_extensions));
SPL_G(autoload_extensions) = NULL;
SPL_G(autoload_extensions_len) = 0;
}
if (SPL_G(autoload_functions)) {
zend_hash_destroy(SPL_G(autoload_functions));
FREE_HASHTABLE(SPL_G(autoload_functions));
SPL_G(autoload_functions) = NULL;
}
if (SPL_G(hash_mask_init)) {
SPL_G(hash_mask_init) = 0;
}
return SUCCESS;
} /* }}} */
/* {{{ spl_module_entry
*/
zend_module_entry spl_module_entry = {
STANDARD_MODULE_HEADER,
"SPL",
spl_functions,
PHP_MINIT(spl),
NULL,
PHP_RINIT(spl),
PHP_RSHUTDOWN(spl),
PHP_MINFO(spl),
"0.2",
PHP_MODULE_GLOBALS(spl),
PHP_GINIT(spl),
NULL,
NULL,
STANDARD_MODULE_PROPERTIES_EX
};