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php_spl.c
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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2018 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_mt_rand.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_functions = NULL;
spl_globals->autoload_running = 0;
}
/* }}} */
static zend_class_entry * spl_find_ce_by_name(zend_string *name, zend_bool autoload)
{
zend_class_entry *ce;
if (!autoload) {
zend_string *lc_name = zend_string_tolower(name);
ce = zend_hash_find_ptr(EG(class_table), lc_name);
zend_string_free(lc_name);
} else {
ce = zend_lookup_class(name);
}
if (ce == NULL) {
php_error_docref(NULL, E_WARNING, "Class %s does not exist%s", ZSTR_VAL(name), autoload ? " and could not be loaded" : "");
return NULL;
}
return ce;
}
/* {{{ proto array class_parents(object instance [, bool 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(), "z|b", &obj, &autoload) == FAILURE) {
RETURN_FALSE;
}
if (Z_TYPE_P(obj) != IS_OBJECT && Z_TYPE_P(obj) != IS_STRING) {
php_error_docref(NULL, E_WARNING, "object or string expected");
RETURN_FALSE;
}
if (Z_TYPE_P(obj) == IS_STRING) {
if (NULL == (ce = spl_find_ce_by_name(Z_STR_P(obj), autoload))) {
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);
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(), "z|b", &obj, &autoload) == FAILURE) {
RETURN_FALSE;
}
if (Z_TYPE_P(obj) != IS_OBJECT && Z_TYPE_P(obj) != IS_STRING) {
php_error_docref(NULL, E_WARNING, "object or string expected");
RETURN_FALSE;
}
if (Z_TYPE_P(obj) == IS_STRING) {
if (NULL == (ce = spl_find_ce_by_name(Z_STR_P(obj), autoload))) {
RETURN_FALSE;
}
} else {
ce = Z_OBJCE_P(obj);
}
array_init(return_value);
spl_add_interfaces(return_value, ce, 1, ZEND_ACC_INTERFACE);
}
/* }}} */
/* {{{ 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(), "z|b", &obj, &autoload) == FAILURE) {
RETURN_FALSE;
}
if (Z_TYPE_P(obj) != IS_OBJECT && Z_TYPE_P(obj) != IS_STRING) {
php_error_docref(NULL, E_WARNING, "object or string expected");
RETURN_FALSE;
}
if (Z_TYPE_P(obj) == IS_STRING) {
if (NULL == (ce = spl_find_ce_by_name(Z_STR_P(obj), autoload))) {
RETURN_FALSE;
}
} else {
ce = Z_OBJCE_P(obj);
}
array_init(return_value);
spl_add_traits(return_value, ce, 1, ZEND_ACC_TRAIT);
}
/* }}} */
#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)
#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(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(zend_string *class_name, zend_string *lc_name, const char *ext, int ext_len) /* {{{ */
{
char *class_file;
int class_file_len;
zval dummy;
zend_file_handle file_handle;
zend_op_array *new_op_array;
zval result;
int ret;
class_file_len = (int)spprintf(&class_file, 0, "%s%.*s", ZSTR_VAL(lc_name), ext_len, ext);
#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);
if (ret == SUCCESS) {
zend_string *opened_path;
if (!file_handle.opened_path) {
file_handle.opened_path = zend_string_init(class_file, class_file_len, 0);
}
opened_path = zend_string_copy(file_handle.opened_path);
ZVAL_NULL(&dummy);
if (zend_hash_add(&EG(included_files), opened_path, &dummy)) {
new_op_array = zend_compile_file(&file_handle, ZEND_REQUIRE);
zend_destroy_file_handle(&file_handle);
} else {
new_op_array = NULL;
zend_file_handle_dtor(&file_handle);
}
zend_string_release(opened_path);
if (new_op_array) {
ZVAL_UNDEF(&result);
zend_execute(new_op_array, &result);
destroy_op_array(new_op_array);
efree(new_op_array);
if (!EG(exception)) {
zval_ptr_dtor(&result);
}
efree(class_file);
return zend_hash_exists(EG(class_table), lc_name);
}
}
efree(class_file);
return 0;
} /* }}} */
/* {{{ proto void spl_autoload(string class_name [, string file_extensions])
Default implementation for __autoload() */
PHP_FUNCTION(spl_autoload)
{
int pos_len, pos1_len;
char *pos, *pos1;
zend_string *class_name, *lc_name, *file_exts = SPL_G(autoload_extensions);
if (zend_parse_parameters(ZEND_NUM_ARGS(), "S|S", &class_name, &file_exts) == FAILURE) {
RETURN_FALSE;
}
if (file_exts == NULL) { /* autoload_extensions is not initialized, set to defaults */
pos = SPL_DEFAULT_FILE_EXTENSIONS;
pos_len = sizeof(SPL_DEFAULT_FILE_EXTENSIONS) - 1;
} else {
pos = ZSTR_VAL(file_exts);
pos_len = (int)ZSTR_LEN(file_exts);
}
lc_name = zend_string_tolower(class_name);
while (pos && *pos && !EG(exception)) {
pos1 = strchr(pos, ',');
if (pos1) {
pos1_len = (int)(pos1 - pos);
} else {
pos1_len = pos_len;
}
if (spl_autoload(class_name, lc_name, pos, pos1_len)) {
break; /* loaded */
}
pos = pos1 ? pos1 + 1 : NULL;
pos_len = pos1? pos_len - pos1_len - 1 : 0;
}
zend_string_free(lc_name);
} /* }}} */
/* {{{ proto string spl_autoload_extensions([string file_extensions])
Register and return default file extensions for spl_autoload */
PHP_FUNCTION(spl_autoload_extensions)
{
zend_string *file_exts = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|S", &file_exts) == FAILURE) {
return;
}
if (file_exts) {
if (SPL_G(autoload_extensions)) {
zend_string_release(SPL_G(autoload_extensions));
}
SPL_G(autoload_extensions) = zend_string_copy(file_exts);
}
if (SPL_G(autoload_extensions) == NULL) {
RETURN_STRINGL(SPL_DEFAULT_FILE_EXTENSIONS, sizeof(SPL_DEFAULT_FILE_EXTENSIONS) - 1);
} else {
zend_string_addref(SPL_G(autoload_extensions));
RETURN_STR(SPL_G(autoload_extensions));
}
} /* }}} */
typedef struct {
zend_function *func_ptr;
zval obj;
zval closure;
zend_class_entry *ce;
} autoload_func_info;
static void autoload_func_info_dtor(zval *element)
{
autoload_func_info *alfi = (autoload_func_info*)Z_PTR_P(element);
if (!Z_ISUNDEF(alfi->obj)) {
zval_ptr_dtor(&alfi->obj);
}
if (alfi->func_ptr &&
UNEXPECTED(alfi->func_ptr->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE)) {
zend_string_release(alfi->func_ptr->common.function_name);
zend_free_trampoline(alfi->func_ptr);
}
if (!Z_ISUNDEF(alfi->closure)) {
zval_ptr_dtor(&alfi->closure);
}
efree(alfi);
}
/* {{{ 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;
zend_string *lc_name, *func_name;
autoload_func_info *alfi;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &class_name) == FAILURE || Z_TYPE_P(class_name) != IS_STRING) {
return;
}
if (SPL_G(autoload_functions)) {
HashPosition pos;
zend_ulong num_idx;
zend_function *func;
zend_fcall_info fci;
zend_fcall_info_cache fcic;
zend_class_entry *called_scope = zend_get_called_scope(execute_data);
int l_autoload_running = SPL_G(autoload_running);
SPL_G(autoload_running) = 1;
lc_name = zend_string_tolower(Z_STR_P(class_name));
fci.size = sizeof(fci);
fci.retval = &retval;
fci.param_count = 1;
fci.params = class_name;
fci.no_separation = 1;
ZVAL_UNDEF(&fci.function_name); /* Unused */
zend_hash_internal_pointer_reset_ex(SPL_G(autoload_functions), &pos);
while (zend_hash_get_current_key_ex(SPL_G(autoload_functions), &func_name, &num_idx, &pos) == HASH_KEY_IS_STRING) {
alfi = zend_hash_get_current_data_ptr_ex(SPL_G(autoload_functions), &pos);
func = alfi->func_ptr;
if (UNEXPECTED(func->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE)) {
func = emalloc(sizeof(zend_op_array));
memcpy(func, alfi->func_ptr, sizeof(zend_op_array));
zend_string_addref(func->op_array.function_name);
}
ZVAL_UNDEF(&retval);
fcic.function_handler = func;
if (Z_ISUNDEF(alfi->obj)) {
fci.object = NULL;
fcic.object = NULL;
if (alfi->ce &&
(!called_scope ||
!instanceof_function(called_scope, alfi->ce))) {
fcic.called_scope = alfi->ce;
} else {
fcic.called_scope = called_scope;
}
} else {
fci.object = Z_OBJ(alfi->obj);
fcic.object = Z_OBJ(alfi->obj);
fcic.called_scope = Z_OBJCE(alfi->obj);
}
zend_call_function(&fci, &fcic);
zval_ptr_dtor(&retval);
if (EG(exception)) {
break;
}
if (pos + 1 == SPL_G(autoload_functions)->nNumUsed ||
zend_hash_exists(EG(class_table), lc_name)) {
break;
}
zend_hash_move_forward_ex(SPL_G(autoload_functions), &pos);
}
zend_string_release(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) \
do { \
Bucket tmp = (ht)->arData[(ht)->nNumUsed-1]; \
memmove((ht)->arData + 1, (ht)->arData, \
sizeof(Bucket) * ((ht)->nNumUsed - 1)); \
(ht)->arData[0] = tmp; \
zend_hash_rehash(ht); \
} while (0)
/* {{{ proto bool spl_autoload_register([mixed autoload_function [, bool throw [, bool prepend]]])
Register given function as __autoload() implementation */
PHP_FUNCTION(spl_autoload_register)
{
zend_string *func_name;
char *error = NULL;
zend_string *lc_name;
zval *zcallable = NULL;
zend_bool do_throw = 1;
zend_bool prepend = 0;
zend_function *spl_func_ptr;
autoload_func_info alfi;
zend_object *obj_ptr;
zend_fcall_info_cache fcc;
if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS(), "|zbb", &zcallable, &do_throw, &prepend) == FAILURE) {
return;
}
if (ZEND_NUM_ARGS()) {
if (!zend_is_callable_ex(zcallable, NULL, IS_CALLABLE_STRICT, &func_name, &fcc, &error)) {
alfi.ce = fcc.calling_scope;
alfi.func_ptr = fcc.function_handler;
obj_ptr = fcc.object;
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, "Passed array specifies a non static method but no object (%s)", error);
}
if (error) {
efree(error);
}
zend_string_release(func_name);
RETURN_FALSE;
} else if (do_throw) {
zend_throw_exception_ex(spl_ce_LogicException, 0, "Passed array does not specify %s %smethod (%s)", alfi.func_ptr ? "a callable" : "an existing", !obj_ptr ? "static " : "", error);
}
if (error) {
efree(error);
}
zend_string_release(func_name);
RETURN_FALSE;
} else if (Z_TYPE_P(zcallable) == IS_STRING) {
if (do_throw) {
zend_throw_exception_ex(spl_ce_LogicException, 0, "Function '%s' not %s (%s)", ZSTR_VAL(func_name), alfi.func_ptr ? "callable" : "found", error);
}
if (error) {
efree(error);
}
zend_string_release(func_name);
RETURN_FALSE;
} else {
if (do_throw) {
zend_throw_exception_ex(spl_ce_LogicException, 0, "Illegal value passed (%s)", error);
}
if (error) {
efree(error);
}
zend_string_release(func_name);
RETURN_FALSE;
}
} else if (fcc.function_handler->type == ZEND_INTERNAL_FUNCTION &&
fcc.function_handler->internal_function.handler == zif_spl_autoload_call) {
if (do_throw) {
zend_throw_exception_ex(spl_ce_LogicException, 0, "Function spl_autoload_call() cannot be registered");
}
if (error) {
efree(error);
}
zend_string_release(func_name);
RETURN_FALSE;
}
alfi.ce = fcc.calling_scope;
alfi.func_ptr = fcc.function_handler;
obj_ptr = fcc.object;
if (error) {
efree(error);
}
if (Z_TYPE_P(zcallable) == IS_OBJECT) {
ZVAL_COPY(&alfi.closure, zcallable);
lc_name = zend_string_alloc(ZSTR_LEN(func_name) + sizeof(uint32_t), 0);
zend_str_tolower_copy(ZSTR_VAL(lc_name), ZSTR_VAL(func_name), ZSTR_LEN(func_name));
memcpy(ZSTR_VAL(lc_name) + ZSTR_LEN(func_name), &Z_OBJ_HANDLE_P(zcallable), sizeof(uint32_t));
ZSTR_VAL(lc_name)[ZSTR_LEN(lc_name)] = '\0';
} else {
ZVAL_UNDEF(&alfi.closure);
/* Skip leading \ */
if (ZSTR_VAL(func_name)[0] == '\\') {
lc_name = zend_string_alloc(ZSTR_LEN(func_name) - 1, 0);
zend_str_tolower_copy(ZSTR_VAL(lc_name), ZSTR_VAL(func_name) + 1, ZSTR_LEN(func_name) - 1);
} else {
lc_name = zend_string_tolower(func_name);
}
}
zend_string_release(func_name);
if (SPL_G(autoload_functions) && zend_hash_exists(SPL_G(autoload_functions), lc_name)) {
if (!Z_ISUNDEF(alfi.closure)) {
Z_DELREF_P(&alfi.closure);
}
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 = zend_string_extend(lc_name, ZSTR_LEN(lc_name) + sizeof(uint32_t), 0);
memcpy(ZSTR_VAL(lc_name) + ZSTR_LEN(lc_name) - sizeof(uint32_t), &obj_ptr->handle, sizeof(uint32_t));
ZSTR_VAL(lc_name)[ZSTR_LEN(lc_name)] = '\0';
ZVAL_OBJ(&alfi.obj, obj_ptr);
Z_ADDREF(alfi.obj);
} else {
ZVAL_UNDEF(&alfi.obj);
}
if (!SPL_G(autoload_functions)) {
ALLOC_HASHTABLE(SPL_G(autoload_functions));
zend_hash_init(SPL_G(autoload_functions), 1, NULL, autoload_func_info_dtor, 0);
}
spl_func_ptr = zend_hash_str_find_ptr(EG(function_table), "spl_autoload", sizeof("spl_autoload") - 1);
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;
ZVAL_UNDEF(&spl_alfi.obj);
ZVAL_UNDEF(&spl_alfi.closure);
spl_alfi.ce = NULL;
zend_hash_str_add_mem(SPL_G(autoload_functions), "spl_autoload", sizeof("spl_autoload") - 1,
&spl_alfi, sizeof(autoload_func_info));
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 (UNEXPECTED(alfi.func_ptr == &EG(trampoline))) {
zend_function *copy = emalloc(sizeof(zend_op_array));
memcpy(copy, alfi.func_ptr, sizeof(zend_op_array));
alfi.func_ptr->common.function_name = NULL;
alfi.func_ptr = copy;
}
if (zend_hash_add_mem(SPL_G(autoload_functions), lc_name, &alfi, sizeof(autoload_func_info)) == NULL) {
if (obj_ptr && !(alfi.func_ptr->common.fn_flags & ZEND_ACC_STATIC)) {
Z_DELREF(alfi.obj);
}
if (!Z_ISUNDEF(alfi.closure)) {
Z_DELREF(alfi.closure);
}
if (UNEXPECTED(alfi.func_ptr->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE)) {
zend_string_release(alfi.func_ptr->common.function_name);
zend_free_trampoline(alfi.func_ptr);
}
}
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:
zend_string_release(lc_name);
}
if (SPL_G(autoload_functions)) {
EG(autoload_func) = zend_hash_str_find_ptr(EG(function_table), "spl_autoload_call", sizeof("spl_autoload_call") - 1);
} else {
EG(autoload_func) = zend_hash_str_find_ptr(EG(function_table), "spl_autoload", sizeof("spl_autoload") - 1);
}
RETURN_TRUE;
} /* }}} */
/* {{{ proto bool spl_autoload_unregister(mixed autoload_function)
Unregister given function as __autoload() implementation */
PHP_FUNCTION(spl_autoload_unregister)
{
zend_string *func_name = NULL;
char *error = NULL;
zend_string *lc_name;
zval *zcallable;
int success = FAILURE;
zend_function *spl_func_ptr;
zend_object *obj_ptr;
zend_fcall_info_cache fcc;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &zcallable) == FAILURE) {
return;
}
if (!zend_is_callable_ex(zcallable, NULL, IS_CALLABLE_CHECK_SYNTAX_ONLY, &func_name, &fcc, &error)) {
zend_throw_exception_ex(spl_ce_LogicException, 0, "Unable to unregister invalid function (%s)", error);
if (error) {
efree(error);
}
if (func_name) {
zend_string_release(func_name);
}
RETURN_FALSE;
}
obj_ptr = fcc.object;
if (error) {
efree(error);
}
if (Z_TYPE_P(zcallable) == IS_OBJECT) {
lc_name = zend_string_alloc(ZSTR_LEN(func_name) + sizeof(uint32_t), 0);
zend_str_tolower_copy(ZSTR_VAL(lc_name), ZSTR_VAL(func_name), ZSTR_LEN(func_name));
memcpy(ZSTR_VAL(lc_name) + ZSTR_LEN(func_name), &Z_OBJ_HANDLE_P(zcallable), sizeof(uint32_t));
ZSTR_VAL(lc_name)[ZSTR_LEN(lc_name)] = '\0';
} else {
/* Skip leading \ */
if (ZSTR_VAL(func_name)[0] == '\\') {
lc_name = zend_string_alloc(ZSTR_LEN(func_name) - 1, 0);
zend_str_tolower_copy(ZSTR_VAL(lc_name), ZSTR_VAL(func_name) + 1, ZSTR_LEN(func_name) - 1);
} else {
lc_name = zend_string_tolower(func_name);
}
}
zend_string_release(func_name);
if (SPL_G(autoload_functions)) {
if (ZSTR_LEN(lc_name) == sizeof("spl_autoload_call") - 1 && !strcmp(ZSTR_VAL(lc_name), "spl_autoload_call")) {
/* remove all */
if (!SPL_G(autoload_running)) {
zend_hash_destroy(SPL_G(autoload_functions));
FREE_HASHTABLE(SPL_G(autoload_functions));
SPL_G(autoload_functions) = NULL;
EG(autoload_func) = NULL;
} else {
zend_hash_clean(SPL_G(autoload_functions));
}
success = SUCCESS;
} else {
/* remove specific */
success = zend_hash_del(SPL_G(autoload_functions), lc_name);
if (success != SUCCESS && obj_ptr) {
lc_name = zend_string_extend(lc_name, ZSTR_LEN(lc_name) + sizeof(uint32_t), 0);
memcpy(ZSTR_VAL(lc_name) + ZSTR_LEN(lc_name) - sizeof(uint32_t), &obj_ptr->handle, sizeof(uint32_t));
ZSTR_VAL(lc_name)[ZSTR_LEN(lc_name)] = '\0';
success = zend_hash_del(SPL_G(autoload_functions), lc_name);
}
}
} else if (ZSTR_LEN(lc_name) == sizeof("spl_autoload")-1 && !strcmp(ZSTR_VAL(lc_name), "spl_autoload")) {
/* register single spl_autoload() */
spl_func_ptr = zend_hash_str_find_ptr(EG(function_table), "spl_autoload", sizeof("spl_autoload") - 1);
if (EG(autoload_func) == spl_func_ptr) {
success = SUCCESS;
EG(autoload_func) = NULL;
}
}
zend_string_release(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;
autoload_func_info *alfi;
if (zend_parse_parameters_none() == FAILURE) {
return;
}
if (!EG(autoload_func)) {
if ((fptr = zend_hash_str_find_ptr(EG(function_table), ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME) - 1))) {
array_init(return_value);
add_next_index_stringl(return_value, ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME)-1);
return;
}
RETURN_FALSE;
}
fptr = zend_hash_str_find_ptr(EG(function_table), "spl_autoload_call", sizeof("spl_autoload_call") - 1);
if (EG(autoload_func) == fptr) {
zend_string *key;
array_init(return_value);
ZEND_HASH_FOREACH_STR_KEY_PTR(SPL_G(autoload_functions), key, alfi) {
if (!Z_ISUNDEF(alfi->closure)) {
Z_ADDREF(alfi->closure);
add_next_index_zval(return_value, &alfi->closure);
} else if (alfi->func_ptr->common.scope) {
zval tmp;
array_init(&tmp);
if (!Z_ISUNDEF(alfi->obj)) {
Z_ADDREF(alfi->obj);
add_next_index_zval(&tmp, &alfi->obj);
} else {
add_next_index_str(&tmp, zend_string_copy(alfi->ce->name));
}
add_next_index_str(&tmp, zend_string_copy(alfi->func_ptr->common.function_name));
add_next_index_zval(return_value, &tmp);
} else {
if (strncmp(ZSTR_VAL(alfi->func_ptr->common.function_name), "__lambda_func", sizeof("__lambda_func") - 1)) {
add_next_index_str(return_value, zend_string_copy(alfi->func_ptr->common.function_name));
} else {
add_next_index_str(return_value, zend_string_copy(key));
}
}
} ZEND_HASH_FOREACH_END();
return;
}
array_init(return_value);
add_next_index_str(return_value, zend_string_copy(EG(autoload_func)->common.function_name));
} /* }}} */
/* {{{ proto string spl_object_hash(object obj)
Return hash id for given object */
PHP_FUNCTION(spl_object_hash)
{
zval *obj;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "o", &obj) == FAILURE) {
return;
}
RETURN_NEW_STR(php_spl_object_hash(obj));
}
/* }}} */
/* {{{ proto int spl_object_id(object obj)
Returns the integer object handle for the given object */
PHP_FUNCTION(spl_object_id)
{
zval *obj;
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_OBJECT(obj)
ZEND_PARSE_PARAMETERS_END();
RETURN_LONG((zend_long)Z_OBJ_HANDLE_P(obj));
}
/* }}} */
PHPAPI zend_string *php_spl_object_hash(zval *obj) /* {{{*/
{
intptr_t hash_handle, hash_handlers;
if (!SPL_G(hash_mask_init)) {
SPL_G(hash_mask_handle) = (intptr_t)(php_mt_rand() >> 1);
SPL_G(hash_mask_handlers) = (intptr_t)(php_mt_rand() >> 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);
return strpprintf(32, "%016zx%016zx", hash_handle, hash_handlers);
}
/* }}} */
int spl_build_class_list_string(zval *entry, char **list) /* {{{ */
{
char *res;
spprintf(&res, 0, "%s, %s", *list, Z_STRVAL_P(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");
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);
zval_dtor(&list);
php_info_print_table_row(2, "Interfaces", strg + 2);
efree(strg);
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);
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_ARG_INFO(0, throw)
ZEND_ARG_INFO(0, prepend)
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()
ZEND_BEGIN_ARG_INFO_EX(arginfo_spl_object_id, 0, 0, 1)
ZEND_ARG_INFO(0, obj)
ZEND_END_ARG_INFO()
/* }}} */
/* {{{ spl_functions
*/
static 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)
PHP_FE(spl_object_id, arginfo_spl_object_id)
#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_functions) = NULL;
SPL_G(hash_mask_init) = 0;
return SUCCESS;
} /* }}} */
PHP_RSHUTDOWN_FUNCTION(spl) /* {{{ */
{
if (SPL_G(autoload_extensions)) {
zend_string_release(SPL_G(autoload_extensions));
SPL_G(autoload_extensions) = NULL;
}