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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 |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Sascha Schumann <sascha@schumann.cx> |
+----------------------------------------------------------------------+
*/
#include "php.h"
#include "basic_functions.h"
#include "php_incomplete_class.h"
#define INCOMPLETE_CLASS_MSG \
"The script tried to execute a method or " \
"access a property of an incomplete object. " \
"Please ensure that the class definition \"%s\" of the object " \
"you are trying to operate on was loaded _before_ " \
"unserialize() gets called or provide an autoloader " \
"to load the class definition"
static zend_object_handlers php_incomplete_object_handlers;
/* {{{ incomplete_class_message
*/
static void incomplete_class_message(zval *object, int error_type)
{
zend_string *class_name;
class_name = php_lookup_class_name(object);
if (class_name) {
php_error_docref(NULL, error_type, INCOMPLETE_CLASS_MSG, ZSTR_VAL(class_name));
zend_string_release_ex(class_name, 0);
} else {
php_error_docref(NULL, error_type, INCOMPLETE_CLASS_MSG, "unknown");
}
}
/* }}} */
static zval *incomplete_class_get_property(zval *object, zval *member, int type, void **cache_slot, zval *rv) /* {{{ */
{
incomplete_class_message(object, E_NOTICE);
if (type == BP_VAR_W || type == BP_VAR_RW) {
ZVAL_ERROR(rv);
return rv;
} else {
return &EG(uninitialized_zval);
}
}
/* }}} */
static zval *incomplete_class_write_property(zval *object, zval *member, zval *value, void **cache_slot) /* {{{ */
{
incomplete_class_message(object, E_NOTICE);
return value;
}
/* }}} */
static zval *incomplete_class_get_property_ptr_ptr(zval *object, zval *member, int type, void **cache_slot) /* {{{ */
{
incomplete_class_message(object, E_NOTICE);
return &EG(error_zval);
}
/* }}} */
static void incomplete_class_unset_property(zval *object, zval *member, void **cache_slot) /* {{{ */
{
incomplete_class_message(object, E_NOTICE);
}
/* }}} */
static int incomplete_class_has_property(zval *object, zval *member, int check_empty, void **cache_slot) /* {{{ */
{
incomplete_class_message(object, E_NOTICE);
return 0;
}
/* }}} */
static zend_function *incomplete_class_get_method(zend_object **object, zend_string *method, const zval *key) /* {{{ */
{
zval zobject;
ZVAL_OBJ(&zobject, *object);
incomplete_class_message(&zobject, E_ERROR);
return NULL;
}
/* }}} */
/* {{{ php_create_incomplete_class
*/
static zend_object *php_create_incomplete_object(zend_class_entry *class_type)
{
zend_object *object;
object = zend_objects_new( class_type);
object->handlers = &php_incomplete_object_handlers;
object_properties_init(object, class_type);
return object;
}
PHPAPI zend_class_entry *php_create_incomplete_class(void)
{
zend_class_entry incomplete_class;
INIT_CLASS_ENTRY(incomplete_class, INCOMPLETE_CLASS, NULL);
incomplete_class.create_object = php_create_incomplete_object;
memcpy(&php_incomplete_object_handlers, &std_object_handlers, sizeof(zend_object_handlers));
php_incomplete_object_handlers.read_property = incomplete_class_get_property;
php_incomplete_object_handlers.has_property = incomplete_class_has_property;
php_incomplete_object_handlers.unset_property = incomplete_class_unset_property;
php_incomplete_object_handlers.write_property = incomplete_class_write_property;
php_incomplete_object_handlers.get_property_ptr_ptr = incomplete_class_get_property_ptr_ptr;
php_incomplete_object_handlers.get_method = incomplete_class_get_method;
return zend_register_internal_class(&incomplete_class);
}
/* }}} */
/* {{{ php_lookup_class_name
*/
PHPAPI zend_string *php_lookup_class_name(zval *object)
{
zval *val;
HashTable *object_properties;
object_properties = Z_OBJPROP_P(object);
if ((val = zend_hash_str_find(object_properties, MAGIC_MEMBER, sizeof(MAGIC_MEMBER)-1)) != NULL && Z_TYPE_P(val) == IS_STRING) {
return zend_string_copy(Z_STR_P(val));
}
return NULL;
}
/* }}} */
/* {{{ php_store_class_name
*/
PHPAPI void php_store_class_name(zval *object, const char *name, size_t len)
{
zval val;
ZVAL_STRINGL(&val, name, len);
zend_hash_str_update(Z_OBJPROP_P(object), MAGIC_MEMBER, sizeof(MAGIC_MEMBER)-1, &val);
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
|
