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88de69b97c
- extensions such as SimpleXML. This is for Sterling.
982 lines
29 KiB
C
982 lines
29 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998-2004 Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andi Gutmans <andi@zend.com> |
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| Zeev Suraski <zeev@zend.com> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#include "zend.h"
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#include "zend_globals.h"
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#include "zend_variables.h"
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#include "zend_API.h"
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#include "zend_objects.h"
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#include "zend_objects_API.h"
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#include "zend_object_handlers.h"
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#include "zend_interfaces.h"
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#define DEBUG_OBJECT_HANDLERS 0
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#define Z_OBJ_P(zval_p) zend_objects_get_address(zval_p TSRMLS_CC)
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/*
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__X accessors explanation:
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if we have __get and property that is not part of the properties array is
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requested, we call __get handler. If it fails, we return uninitialized.
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if we have __set and property that is not part of the properties array is
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set, we call __set handler. If it fails, we do not change the array.
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for both handlers above, when we are inside __get/__set, no further calls for
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__get/__set for these objects will be made, to prevent endless recursion and
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enable accessors to change properties array.
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if we have __call and method which is not part of the class function table is
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called, we cal __call handler.
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*/
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static HashTable *zend_std_get_properties(zval *object TSRMLS_DC)
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{
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zend_object *zobj;
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zobj = Z_OBJ_P(object);
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return zobj->properties;
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}
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static zval *zend_std_call_getter(zval *object, zval *member TSRMLS_DC)
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{
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zval **call_args[1];
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zval *retval = NULL;
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zval __get_name;
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int call_result;
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/* __get handler is called with two arguments:
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property name
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return value for the object (by reference)
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it should return whether the call was successfull or not
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*/
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INIT_PZVAL(&__get_name);
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ZVAL_STRINGL(&__get_name, ZEND_GET_FUNC_NAME, sizeof(ZEND_GET_FUNC_NAME)-1, 0);
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call_args[0] = &member;
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/* go call the __get handler */
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call_result = call_user_function_ex(NULL,
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&object,
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&__get_name,
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&retval,
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1, call_args,
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0, NULL TSRMLS_CC);
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/*
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call_result is if call_user_function gone OK.
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retval returns the value that is received
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*/
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if (call_result == FAILURE) {
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zend_error(E_ERROR, "Could not call __get handler for class %s", Z_OBJCE_P(object)->name);
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return NULL;
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}
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if (retval) {
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retval->refcount--;
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}
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return retval;
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}
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static int zend_std_call_setter(zval *object, zval *member, zval *value TSRMLS_DC)
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{
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zval **call_args[2];
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zval *retval = NULL;
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zval __set_name;
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int call_result;
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int ret;
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/* __set handler is called with two arguments:
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property name
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value to be set
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it should return whether the call was successfull or not
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*/
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INIT_PZVAL(&__set_name);
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ZVAL_STRINGL(&__set_name, ZEND_SET_FUNC_NAME, sizeof(ZEND_SET_FUNC_NAME)-1, 0);
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call_args[0] = &member;
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value->refcount++;
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call_args[1] = &value;
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/* go call the __set handler */
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call_result = call_user_function_ex(NULL,
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&object,
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&__set_name,
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&retval,
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2, call_args,
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0, NULL TSRMLS_CC);
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/*
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call_result is if call_user_function gone OK.
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retval shows if __get method went OK.
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*/
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if (call_result == FAILURE) {
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zend_error(E_ERROR, "Could not call __set handler for class %s", Z_OBJCE_P(object)->name);
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return FAILURE;
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}
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zval_ptr_dtor(&value);
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if (retval && zval_is_true(retval)) {
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ret = SUCCESS;
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} else {
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ret = FAILURE;
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}
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if (retval) {
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zval_ptr_dtor(&retval);
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}
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return ret;
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}
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static int zend_verify_property_access(zend_property_info *property_info, zend_class_entry *ce TSRMLS_DC)
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{
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switch (property_info->flags & ZEND_ACC_PPP_MASK) {
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case ZEND_ACC_PUBLIC:
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return 1;
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case ZEND_ACC_PROTECTED:
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while (ce) {
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if (ce==EG(scope)) {
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return 1;
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}
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ce = ce->parent;
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}
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return 0;
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case ZEND_ACC_PRIVATE:
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if (ce==EG(scope) && EG(scope)) {
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return 1;
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} else {
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return 0;
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}
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break;
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}
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return 0;
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}
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static inline zend_bool is_derived_class(zend_class_entry *child_class, zend_class_entry *parent_class)
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{
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child_class = child_class->parent;
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while (child_class) {
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if (child_class == parent_class) {
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return 1;
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}
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child_class = child_class->parent;
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}
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return 0;
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}
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static inline zend_property_info *zend_get_property_info(zend_object *zobj, zval *member, int silent TSRMLS_DC)
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{
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zend_property_info *property_info = NULL;
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zend_property_info *scope_property_info;
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zend_bool denied_access = 0;
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ulong h = zend_get_hash_value(Z_STRVAL_P(member), Z_STRLEN_P(member)+1);
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if (zend_hash_quick_find(&zobj->ce->properties_info, Z_STRVAL_P(member), Z_STRLEN_P(member)+1, h, (void **) &property_info)==SUCCESS) {
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if (zend_verify_property_access(property_info, zobj->ce TSRMLS_CC)) {
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if (property_info->flags & ZEND_ACC_CHANGED
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&& !(property_info->flags & ZEND_ACC_PRIVATE)) {
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/* We still need to make sure that we're not in a context
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* where the right property is a different 'statically linked' private
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* continue checking below...
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*/
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} else {
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return property_info;
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}
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} else {
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/* Try to look in the scope instead */
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denied_access = 1;
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}
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}
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if (EG(scope) != zobj->ce
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&& is_derived_class(zobj->ce, EG(scope))
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&& EG(scope)
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&& zend_hash_quick_find(&EG(scope)->properties_info, Z_STRVAL_P(member), Z_STRLEN_P(member)+1, h, (void **) &scope_property_info)==SUCCESS
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&& scope_property_info->flags & ZEND_ACC_PRIVATE) {
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return scope_property_info;
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} else if (property_info) {
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if (denied_access) {
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/* Information was available, but we were denied access. Error out. */
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if (silent) {
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return NULL;
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}
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zend_error(E_ERROR, "Cannot access %s property %s::$%s", zend_visibility_string(property_info->flags), zobj->ce->name, Z_STRVAL_P(member));
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} else {
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/* fall through, return property_info... */
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}
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} else {
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EG(std_property_info).flags = ZEND_ACC_PUBLIC;
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EG(std_property_info).name = Z_STRVAL_P(member);
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EG(std_property_info).name_length = Z_STRLEN_P(member);
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EG(std_property_info).h = zend_get_hash_value(EG(std_property_info).name, EG(std_property_info).name_length+1);
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property_info = &EG(std_property_info);
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}
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return property_info;
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}
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ZEND_API int zend_check_property_access(zend_object *zobj, char *prop_info_name TSRMLS_DC)
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{
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zend_property_info *property_info;
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char *class_name, *prop_name;
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zval member;
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zend_unmangle_property_name(prop_info_name, &class_name, &prop_name);
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ZVAL_STRING(&member, prop_name, 0);
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property_info = zend_get_property_info(zobj, &member, 1 TSRMLS_CC);
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if (!property_info) {
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return FAILURE;
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}
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if (prop_info_name[0] == '\0' && prop_info_name[1] != '*' && !(property_info->flags & ZEND_ACC_PRIVATE)) {
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/* we we're looking for a private prop but found a non private one of the same name */
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return FAILURE;
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}
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return zend_verify_property_access(property_info, zobj->ce TSRMLS_CC) ? SUCCESS : FAILURE;
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}
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zval *zend_std_read_property(zval *object, zval *member, zend_bool silent TSRMLS_DC)
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{
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zend_object *zobj;
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zval tmp_member;
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zval **retval;
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zval *rv = NULL;
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zend_property_info *property_info;
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zobj = Z_OBJ_P(object);
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if (member->type != IS_STRING) {
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tmp_member = *member;
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zval_copy_ctor(&tmp_member);
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convert_to_string(&tmp_member);
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member = &tmp_member;
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}
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#if DEBUG_OBJECT_HANDLERS
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fprintf(stderr, "Read object #%d property: %s\n", Z_OBJ_HANDLE_P(object), Z_STRVAL_P(member));
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#endif
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property_info = zend_get_property_info(zobj, member, 0 TSRMLS_CC);
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if (zend_hash_quick_find(zobj->properties, property_info->name, property_info->name_length+1, property_info->h, (void **) &retval) == FAILURE) {
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if (zobj->ce->__get && !zobj->in_get) {
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/* have getter - try with it! */
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zobj->in_get = 1; /* prevent circular getting */
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rv = zend_std_call_getter(object, member TSRMLS_CC);
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zobj->in_get = 0;
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if (rv) {
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retval = &rv;
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} else {
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retval = &EG(uninitialized_zval_ptr);
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}
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} else {
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if (!silent) {
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zend_error(E_NOTICE,"Undefined property: %s::$%s", zobj->ce->name, Z_STRVAL_P(member));
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}
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retval = &EG(uninitialized_zval_ptr);
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}
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}
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if (member == &tmp_member) {
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zval_dtor(member);
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}
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return *retval;
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}
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static void zend_std_write_property(zval *object, zval *member, zval *value TSRMLS_DC)
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{
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zend_object *zobj;
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zval tmp_member;
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zval **variable_ptr;
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int setter_done = 0;
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zend_property_info *property_info;
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zobj = Z_OBJ_P(object);
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if (member->type != IS_STRING) {
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tmp_member = *member;
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zval_copy_ctor(&tmp_member);
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convert_to_string(&tmp_member);
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member = &tmp_member;
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}
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property_info = zend_get_property_info(zobj, member, 0 TSRMLS_CC);
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if (zend_hash_quick_find(zobj->properties, property_info->name, property_info->name_length+1, property_info->h, (void **) &variable_ptr) == SUCCESS) {
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if (*variable_ptr == value) {
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/* if we already have this value there, we don't actually need to do anything */
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setter_done = 1;
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} else {
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/* if we are assigning reference, we shouldn't move it, but instead assign variable
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to the same pointer */
|
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if (PZVAL_IS_REF(*variable_ptr)) {
|
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zval_dtor(*variable_ptr); /* old value should be destroyed */
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/* To check: can't *variable_ptr be some system variable like error_zval here? */
|
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(*variable_ptr)->type = value->type;
|
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(*variable_ptr)->value = value->value;
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if (value->refcount>0) {
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zval_copy_ctor(*variable_ptr);
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}
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setter_done = 1;
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}
|
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}
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} else {
|
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if (zobj->ce->__set && !zobj->in_set) {
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zobj->in_set = 1; /* prevent circular setting */
|
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if (zend_std_call_setter(object, member, value TSRMLS_CC) != SUCCESS) {
|
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/* for now, just ignore it - __set should take care of warnings, etc. */
|
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}
|
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setter_done = 1;
|
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zobj->in_set = 0;
|
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}
|
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}
|
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|
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if (!setter_done) {
|
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zval **foo;
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|
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/* if we assign referenced variable, we should separate it */
|
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value->refcount++;
|
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if (PZVAL_IS_REF(value)) {
|
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SEPARATE_ZVAL(&value);
|
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}
|
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zend_hash_quick_update(zobj->properties, property_info->name, property_info->name_length+1, property_info->h, &value, sizeof(zval *), (void **) &foo);
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}
|
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if (member == &tmp_member) {
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zval_dtor(member);
|
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}
|
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}
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zval *zend_std_read_dimension(zval *object, zval *offset, int type TSRMLS_DC)
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{
|
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zend_class_entry *ce = Z_OBJCE_P(object);
|
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zval *retval;
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if (instanceof_function_ex(ce, zend_ce_arrayaccess, 1 TSRMLS_CC)) {
|
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zend_call_method_with_1_params(&object, ce, NULL, "offsetget", &retval, offset);
|
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if (!retval) {
|
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if (!EG(exception)) {
|
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zend_error(E_ERROR, "Undefined offset for object of type %s used as array", ce->name);
|
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}
|
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return 0;
|
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}
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|
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/* Undo PZVAL_LOCK() */
|
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retval->refcount--;
|
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|
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return retval;
|
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} else {
|
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zend_error(E_ERROR, "Cannot use object of type %s as array", ce->name);
|
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return 0;
|
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}
|
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}
|
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static void zend_std_write_dimension(zval *object, zval *offset, zval *value TSRMLS_DC)
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{
|
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zend_class_entry *ce = Z_OBJCE_P(object);
|
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zval tmp;
|
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|
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if (instanceof_function_ex(ce, zend_ce_arrayaccess, 1 TSRMLS_CC)) {
|
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if (!offset) {
|
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INIT_ZVAL(tmp);
|
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offset = &tmp;
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}
|
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zend_call_method_with_2_params(&object, ce, NULL, "offsetset", NULL, offset, value);
|
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} else {
|
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zend_error(E_ERROR, "Cannot use object of type %s as array", ce->name);
|
|
}
|
|
}
|
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|
|
|
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static int zend_std_has_dimension(zval *object, zval *offset, int check_empty TSRMLS_DC)
|
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{
|
|
zend_class_entry *ce = Z_OBJCE_P(object);
|
|
zval *retval;
|
|
int result;
|
|
|
|
if (instanceof_function_ex(ce, zend_ce_arrayaccess, 1 TSRMLS_CC)) {
|
|
zend_call_method_with_1_params(&object, ce, NULL, "offsetexists", &retval, offset);
|
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result = i_zend_is_true(retval);
|
|
zval_ptr_dtor(&retval);
|
|
return result;
|
|
} else {
|
|
zend_error(E_ERROR, "Cannot use object of type %s as array", ce->name);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
static zval **zend_std_get_property_ptr_ptr(zval *object, zval *member TSRMLS_DC)
|
|
{
|
|
zend_object *zobj;
|
|
zval tmp_member;
|
|
zval **retval;
|
|
zend_property_info *property_info;
|
|
|
|
zobj = Z_OBJ_P(object);
|
|
|
|
if (member->type != IS_STRING) {
|
|
tmp_member = *member;
|
|
zval_copy_ctor(&tmp_member);
|
|
convert_to_string(&tmp_member);
|
|
member = &tmp_member;
|
|
}
|
|
|
|
#if DEBUG_OBJECT_HANDLERS
|
|
fprintf(stderr, "Ptr object #%d property: %s\n", Z_OBJ_HANDLE_P(object), Z_STRVAL_P(member));
|
|
#endif
|
|
|
|
property_info = zend_get_property_info(zobj, member, 0 TSRMLS_CC);
|
|
|
|
if (zend_hash_quick_find(zobj->properties, property_info->name, property_info->name_length+1, property_info->h, (void **) &retval) == FAILURE) {
|
|
zval *new_zval;
|
|
|
|
if (!zobj->ce->__get && !zobj->ce->__set) {
|
|
/* we don't have access controls - will just add it */
|
|
new_zval = &EG(uninitialized_zval);
|
|
|
|
/* zend_error(E_NOTICE, "Undefined property: %s", Z_STRVAL_P(member)); */
|
|
new_zval->refcount++;
|
|
zend_hash_quick_update(zobj->properties, property_info->name, property_info->name_length+1, property_info->h, &new_zval, sizeof(zval *), (void **) &retval);
|
|
} else {
|
|
/* we do have getter - fail and let it try again with usual get/set */
|
|
retval = NULL;
|
|
}
|
|
}
|
|
if (member == &tmp_member) {
|
|
zval_dtor(member);
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
|
|
static void zend_std_unset_property(zval *object, zval *member TSRMLS_DC)
|
|
{
|
|
zend_object *zobj;
|
|
zval tmp_member;
|
|
zend_property_info *property_info;
|
|
|
|
zobj = Z_OBJ_P(object);
|
|
|
|
if (member->type != IS_STRING) {
|
|
tmp_member = *member;
|
|
zval_copy_ctor(&tmp_member);
|
|
convert_to_string(&tmp_member);
|
|
member = &tmp_member;
|
|
}
|
|
|
|
property_info = zend_get_property_info(zobj, member, 0 TSRMLS_CC);
|
|
|
|
zend_hash_del(zobj->properties, property_info->name, property_info->name_length+1);
|
|
if (member == &tmp_member) {
|
|
zval_dtor(member);
|
|
}
|
|
}
|
|
|
|
|
|
static void zend_std_unset_dimension(zval *object, zval *offset TSRMLS_DC)
|
|
{
|
|
zend_class_entry *ce = Z_OBJCE_P(object);
|
|
zval *retval;
|
|
|
|
if (instanceof_function_ex(ce, zend_ce_arrayaccess, 1 TSRMLS_CC)) {
|
|
zend_call_method_with_1_params(&object, ce, NULL, "offsetunset", &retval, offset);
|
|
zval_ptr_dtor(&retval);
|
|
} else {
|
|
zend_error(E_ERROR, "Cannot use object of type %s as array", ce->name);
|
|
}
|
|
}
|
|
|
|
|
|
ZEND_API void zend_std_call_user_call(INTERNAL_FUNCTION_PARAMETERS)
|
|
{
|
|
zval ***args;
|
|
zend_internal_function *func = (zend_internal_function *)EG(function_state_ptr)->function;
|
|
zval method_name, method_args, __call_name;
|
|
zval *method_name_ptr, *method_args_ptr;
|
|
zval **call_args[2];
|
|
zval *method_result_ptr = NULL;
|
|
int i, call_result;
|
|
|
|
args = (zval ***)emalloc(ZEND_NUM_ARGS() * sizeof(zval **));
|
|
|
|
if (zend_get_parameters_array_ex(ZEND_NUM_ARGS(), args) == FAILURE) {
|
|
efree(args);
|
|
zend_error(E_ERROR, "Cannot get arguments for __call");
|
|
RETURN_FALSE;
|
|
}
|
|
|
|
method_name_ptr = &method_name;
|
|
INIT_PZVAL(method_name_ptr);
|
|
ZVAL_STRING(method_name_ptr, func->function_name, 0); /* no dup - it's a copy */
|
|
|
|
method_args_ptr = &method_args;
|
|
INIT_PZVAL(method_args_ptr);
|
|
array_init(method_args_ptr);
|
|
|
|
for(i=0; i<ZEND_NUM_ARGS(); i++) {
|
|
zval_add_ref(args[i]);
|
|
add_next_index_zval(method_args_ptr, *args[i]);
|
|
}
|
|
|
|
efree(args);
|
|
|
|
INIT_PZVAL(&__call_name);
|
|
ZVAL_STRINGL(&__call_name, ZEND_CALL_FUNC_NAME, sizeof(ZEND_CALL_FUNC_NAME)-1, 0);
|
|
|
|
/* __call handler is called with two arguments:
|
|
method name
|
|
array of method parameters
|
|
|
|
*/
|
|
call_args[0] = &method_name_ptr;
|
|
call_args[1] = &method_args_ptr;
|
|
|
|
/* go call the __call handler */
|
|
call_result = call_user_function_ex(NULL,
|
|
&this_ptr,
|
|
&__call_name,
|
|
&method_result_ptr,
|
|
2, call_args,
|
|
0, NULL TSRMLS_CC);
|
|
|
|
/* call_result is if call_user_function gone OK.
|
|
method_result_ptr is the true result of the called method
|
|
*/
|
|
|
|
if (method_result_ptr) {
|
|
*return_value = *method_result_ptr;
|
|
zval_copy_ctor(return_value);
|
|
zval_ptr_dtor(&method_result_ptr);
|
|
}
|
|
|
|
if (call_result == FAILURE) {
|
|
zend_error(E_ERROR, "Could not call __call handler for class %s", Z_OBJCE_P(this_ptr)->name);
|
|
}
|
|
|
|
/* now destruct all auxiliaries */
|
|
zval_dtor(method_args_ptr);
|
|
zval_dtor(method_name_ptr);
|
|
|
|
/* destruct the function also, then - we have allocated it in get_method */
|
|
efree(func);
|
|
}
|
|
|
|
/* Ensures that we're allowed to call a private method.
|
|
* Returns the function address that should be called, or NULL
|
|
* if no such function exists.
|
|
*/
|
|
inline zend_function *zend_check_private(zend_function *fbc, zend_class_entry *ce, int fn_flags, char *function_name_strval, int function_name_strlen TSRMLS_DC)
|
|
{
|
|
if (!ce) {
|
|
return 0;
|
|
}
|
|
|
|
/* We may call a private function if:
|
|
* 1. The class of our object is the same as the scope, and the private
|
|
* function (EX(fbc)) has the same scope.
|
|
* 2. One of our parent classes are the same as the scope, and it contains
|
|
* a private function with the same name that has the same scope.
|
|
*/
|
|
if (fbc->common.scope == ce && EG(scope) == ce) {
|
|
/* rule #1 checks out ok, allow the function call */
|
|
return fbc;
|
|
}
|
|
|
|
|
|
/* Check rule #2 */
|
|
ce = ce->parent;
|
|
while (ce) {
|
|
if (ce == EG(scope)) {
|
|
if (zend_hash_find(&ce->function_table, function_name_strval, function_name_strlen+1, (void **) &fbc)==SUCCESS
|
|
&& fbc->op_array.fn_flags & ZEND_ACC_PRIVATE
|
|
&& fbc->common.scope == EG(scope)) {
|
|
return fbc;
|
|
}
|
|
break;
|
|
}
|
|
ce = ce->parent;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* Ensures that we're allowed to call a protected method.
|
|
*/
|
|
ZEND_API int zend_check_protected(zend_class_entry *ce, zend_class_entry *scope)
|
|
{
|
|
zend_class_entry *fbc_scope = ce;
|
|
|
|
/* Is the context that's calling the function, the same as one of
|
|
* the function's parents?
|
|
*/
|
|
while (fbc_scope) {
|
|
if (fbc_scope==scope) {
|
|
return 1;
|
|
}
|
|
fbc_scope = fbc_scope->parent;
|
|
}
|
|
|
|
/* Is the function's scope the same as our current object context,
|
|
* or any of the parents of our context?
|
|
*/
|
|
while (scope) {
|
|
if (scope==ce) {
|
|
return 1;
|
|
}
|
|
scope = scope->parent;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static union _zend_function *zend_std_get_method(zval *object, char *method_name, int method_len TSRMLS_DC)
|
|
{
|
|
zend_object *zobj;
|
|
zend_function *fbc;
|
|
char *lc_method_name;
|
|
|
|
lc_method_name = do_alloca(method_len+1);
|
|
/* Create a zend_copy_str_tolower(dest, src, src_length); */
|
|
zend_str_tolower_copy(lc_method_name, method_name, method_len);
|
|
|
|
zobj = Z_OBJ_P(object);
|
|
if (zend_hash_find(&zobj->ce->function_table, lc_method_name, method_len+1, (void **)&fbc) == FAILURE) {
|
|
if (zobj->ce->__call) {
|
|
zend_internal_function *call_user_call = emalloc(sizeof(zend_internal_function));
|
|
call_user_call->type = ZEND_INTERNAL_FUNCTION;
|
|
call_user_call->handler = zend_std_call_user_call;
|
|
call_user_call->arg_info = NULL;
|
|
call_user_call->num_args = 0;
|
|
call_user_call->scope = zobj->ce;
|
|
call_user_call->fn_flags = 0;
|
|
call_user_call->function_name = estrndup(method_name, method_len);
|
|
|
|
free_alloca(lc_method_name);
|
|
return (union _zend_function *)call_user_call;
|
|
} else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* Check access level */
|
|
if (fbc->op_array.fn_flags & ZEND_ACC_PUBLIC) {
|
|
/* Ensure that we haven't overridden a private function and end up calling
|
|
* the overriding public function...
|
|
*/
|
|
if (EG(scope) && fbc->op_array.fn_flags & ZEND_ACC_CHANGED) {
|
|
zend_function *priv_fbc;
|
|
|
|
if (zend_hash_find(&EG(scope)->function_table, lc_method_name, method_len+1, (void **) &priv_fbc)==SUCCESS
|
|
&& priv_fbc->common.fn_flags & ZEND_ACC_PRIVATE) {
|
|
fbc = priv_fbc;
|
|
}
|
|
}
|
|
} else if (fbc->op_array.fn_flags & ZEND_ACC_PRIVATE) {
|
|
zend_function *updated_fbc;
|
|
|
|
/* Ensure that if we're calling a private function, we're allowed to do so.
|
|
*/
|
|
updated_fbc = zend_check_private(fbc, object->value.obj.handlers->get_class_entry(object TSRMLS_CC), fbc->common.fn_flags, lc_method_name, method_len TSRMLS_CC);
|
|
if (!updated_fbc) {
|
|
zend_error(E_ERROR, "Call to %s method %s::%s() from context '%s'", zend_visibility_string(fbc->common.fn_flags), ZEND_FN_SCOPE_NAME(fbc), method_name, EG(scope) ? EG(scope)->name : "");
|
|
}
|
|
fbc = updated_fbc;
|
|
} else if ((fbc->common.fn_flags & ZEND_ACC_PROTECTED)) {
|
|
/* Ensure that if we're calling a protected function, we're allowed to do so.
|
|
*/
|
|
if (!zend_check_protected(fbc->common.scope, EG(scope))) {
|
|
zend_error(E_ERROR, "Call to %s method %s::%s() from context '%s'", zend_visibility_string(fbc->common.fn_flags), ZEND_FN_SCOPE_NAME(fbc), method_name, EG(scope) ? EG(scope)->name : "");
|
|
}
|
|
}
|
|
|
|
free_alloca(lc_method_name);
|
|
return fbc;
|
|
}
|
|
|
|
|
|
/* This is not (yet?) in the API, but it belongs in the built-in objects callbacks */
|
|
ZEND_API zend_function *zend_std_get_static_method(zend_class_entry *ce, char *function_name_strval, int function_name_strlen TSRMLS_DC)
|
|
{
|
|
zend_function *fbc;
|
|
|
|
if (zend_hash_find(&ce->function_table, function_name_strval, function_name_strlen+1, (void **) &fbc)==FAILURE) {
|
|
char *class_name = ce->name;
|
|
|
|
if (!class_name) {
|
|
class_name = "";
|
|
}
|
|
zend_error(E_ERROR, "Call to undefined method %s::%s()", class_name, function_name_strval);
|
|
}
|
|
if (fbc->op_array.fn_flags & ZEND_ACC_PUBLIC) {
|
|
/* No further checks necessary, most common case */
|
|
} else if (fbc->op_array.fn_flags & ZEND_ACC_PRIVATE) {
|
|
zend_function *updated_fbc;
|
|
|
|
/* Ensure that if we're calling a private function, we're allowed to do so.
|
|
*/
|
|
updated_fbc = zend_check_private(fbc, EG(scope), fbc->common.fn_flags, function_name_strval, function_name_strlen TSRMLS_CC);
|
|
if (!updated_fbc) {
|
|
zend_error(E_ERROR, "Call to %s method %s::%s() from context '%s'", zend_visibility_string(fbc->common.fn_flags), ZEND_FN_SCOPE_NAME(fbc), function_name_strval, EG(scope) ? EG(scope)->name : "");
|
|
}
|
|
fbc = updated_fbc;
|
|
} else if ((fbc->common.fn_flags & ZEND_ACC_PROTECTED)) {
|
|
/* Ensure that if we're calling a protected function, we're allowed to do so.
|
|
*/
|
|
if (!zend_check_protected(EG(scope), fbc->common.scope)) {
|
|
zend_error(E_ERROR, "Call to %s method %s::%s() from context '%s'", zend_visibility_string(fbc->common.fn_flags), ZEND_FN_SCOPE_NAME(fbc), function_name_strval, EG(scope) ? EG(scope)->name : "");
|
|
}
|
|
}
|
|
|
|
return fbc;
|
|
}
|
|
|
|
|
|
ZEND_API zval **zend_std_get_static_property(zend_class_entry *ce, char *property_name, int property_name_len, zend_bool silent TSRMLS_DC)
|
|
{
|
|
zval **retval = NULL;
|
|
zend_class_entry *tmp_ce = ce;
|
|
zend_property_info *property_info;
|
|
zend_property_info std_property_info;
|
|
|
|
if (zend_hash_find(&ce->properties_info, property_name, property_name_len+1, (void **) &property_info)==FAILURE) {
|
|
std_property_info.flags = ZEND_ACC_PUBLIC;
|
|
std_property_info.name = property_name;
|
|
std_property_info.name_length = property_name_len;
|
|
std_property_info.h = zend_get_hash_value(std_property_info.name, std_property_info.name_length+1);
|
|
property_info = &std_property_info;
|
|
}
|
|
|
|
#if 1&&DEBUG_OBJECT_HANDLERS
|
|
zend_printf("Access type for %s::%s is %s\n", ce->name, property_name, zend_visibility_string(property_info->flags));
|
|
#endif
|
|
|
|
if (!zend_verify_property_access(property_info, ce TSRMLS_CC)) {
|
|
zend_error(E_ERROR, "Cannot access %s property %s::$%s", zend_visibility_string(property_info->flags), ce->name, property_name);
|
|
}
|
|
|
|
zend_hash_quick_find(tmp_ce->static_members, property_info->name, property_info->name_length+1, property_info->h, (void **) &retval);
|
|
|
|
if (!retval) {
|
|
if (silent) {
|
|
return NULL;
|
|
} else {
|
|
zend_error(E_ERROR, "Access to undeclared static property: %s::$%s", ce->name, property_name);
|
|
}
|
|
}
|
|
|
|
zval_update_constant(retval, (void *) 1 TSRMLS_CC);
|
|
return retval;
|
|
}
|
|
|
|
|
|
ZEND_API zend_bool zend_std_unset_static_property(zend_class_entry *ce, char *property_name, int property_name_len TSRMLS_DC)
|
|
{
|
|
zend_error(E_ERROR, "Attempt to unset static property %s::$%s", ce->name, property_name);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static union _zend_function *zend_std_get_constructor(zval *object TSRMLS_DC)
|
|
{
|
|
zend_object *zobj = Z_OBJ_P(object);
|
|
zend_function *constructor = zobj->ce->constructor;
|
|
|
|
if (constructor) {
|
|
if (constructor->op_array.fn_flags & ZEND_ACC_PUBLIC) {
|
|
/* No further checks necessary */
|
|
} else if (constructor->op_array.fn_flags & ZEND_ACC_PRIVATE) {
|
|
/* Ensure that if we're calling a private function, we're allowed to do so.
|
|
*/
|
|
if (object->value.obj.handlers->get_class_entry(object TSRMLS_CC) != EG(scope)) {
|
|
zend_error(E_ERROR, "Call to private %s::%s() from context '%s'", constructor->common.scope->name, constructor->common.function_name, EG(scope) ? EG(scope)->name : "");
|
|
}
|
|
} else if ((constructor->common.fn_flags & ZEND_ACC_PROTECTED)) {
|
|
/* Ensure that if we're calling a protected function, we're allowed to do so.
|
|
*/
|
|
if (!zend_check_protected(constructor->common.scope, EG(scope))) {
|
|
zend_error(E_ERROR, "Call to protected %s::%s() from context '%s'", constructor->common.scope->name, constructor->common.function_name, EG(scope) ? EG(scope)->name : "");
|
|
}
|
|
}
|
|
}
|
|
|
|
return constructor;
|
|
}
|
|
|
|
|
|
int zend_compare_symbol_tables_i(HashTable *ht1, HashTable *ht2 TSRMLS_DC);
|
|
|
|
|
|
static int zend_std_compare_objects(zval *o1, zval *o2 TSRMLS_DC)
|
|
{
|
|
zend_object *zobj1, *zobj2;
|
|
|
|
zobj1 = Z_OBJ_P(o1);
|
|
zobj2 = Z_OBJ_P(o2);
|
|
|
|
if (zobj1->ce != zobj2->ce) {
|
|
return 1; /* different classes */
|
|
}
|
|
return zend_compare_symbol_tables_i(zobj1->properties, zobj2->properties TSRMLS_CC);
|
|
}
|
|
|
|
|
|
static int zend_std_has_property(zval *object, zval *member, int check_empty TSRMLS_DC)
|
|
{
|
|
zend_object *zobj;
|
|
int result;
|
|
zval **value;
|
|
zval tmp_member;
|
|
zend_property_info *property_info;
|
|
|
|
zobj = Z_OBJ_P(object);
|
|
|
|
if (member->type != IS_STRING) {
|
|
tmp_member = *member;
|
|
zval_copy_ctor(&tmp_member);
|
|
convert_to_string(&tmp_member);
|
|
member = &tmp_member;
|
|
}
|
|
|
|
#if DEBUG_OBJECT_HANDLERS
|
|
fprintf(stderr, "Read object #%d property: %s\n", Z_OBJ_HANDLE_P(object), Z_STRVAL_P(member));
|
|
#endif
|
|
|
|
property_info = zend_get_property_info(zobj, member, 0 TSRMLS_CC);
|
|
|
|
if (zend_hash_find(zobj->properties, property_info->name, property_info->name_length+1, (void **) &value) == SUCCESS) {
|
|
if (check_empty) {
|
|
result = zend_is_true(*value);
|
|
} else {
|
|
result = (Z_TYPE_PP(value) != IS_NULL);
|
|
}
|
|
} else {
|
|
result = 0;
|
|
}
|
|
|
|
if (member == &tmp_member) {
|
|
zval_dtor(member);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
zend_class_entry *zend_std_object_get_class(zval *object TSRMLS_DC)
|
|
{
|
|
zend_object *zobj;
|
|
zobj = Z_OBJ_P(object);
|
|
|
|
return zobj->ce;
|
|
}
|
|
|
|
int zend_std_object_get_class_name(zval *object, char **class_name, zend_uint *class_name_len, int parent TSRMLS_DC)
|
|
{
|
|
zend_object *zobj;
|
|
zend_class_entry *ce;
|
|
zobj = Z_OBJ_P(object);
|
|
|
|
if (parent) {
|
|
if (!zobj->ce->parent) {
|
|
return FAILURE;
|
|
}
|
|
ce = zobj->ce->parent;
|
|
} else {
|
|
ce = zobj->ce;
|
|
}
|
|
|
|
*class_name_len = ce->name_length;
|
|
*class_name = estrndup(ce->name, ce->name_length);
|
|
return SUCCESS;
|
|
}
|
|
|
|
ZEND_API int zend_std_cast_object_tostring(zval *readobj, zval *writeobj, int type, int should_free TSRMLS_DC)
|
|
{
|
|
zval fname, *retval;
|
|
|
|
switch (type) {
|
|
case IS_STRING:
|
|
ZVAL_STRING(&fname, "__tostring", 0);
|
|
if (call_user_function_ex(NULL, &readobj, &fname, &retval, 0, NULL, 0, NULL TSRMLS_CC) == SUCCESS) {
|
|
if (retval) {
|
|
if (Z_TYPE_P(retval) != IS_STRING) {
|
|
zend_error(E_ERROR, "Method %s::__toString() must return a string value", Z_OBJCE_P(readobj)->name);
|
|
}
|
|
} else {
|
|
MAKE_STD_ZVAL(retval);
|
|
ZVAL_STRINGL(retval, empty_string, 0, 0);
|
|
}
|
|
*writeobj = *retval;
|
|
zval_copy_ctor(writeobj);
|
|
INIT_PZVAL(writeobj);
|
|
zval_ptr_dtor(&retval);
|
|
return SUCCESS;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return FAILURE;
|
|
}
|
|
|
|
|
|
ZEND_API zend_object_handlers std_object_handlers = {
|
|
zend_objects_store_add_ref, /* add_ref */
|
|
zend_objects_store_del_ref, /* del_ref */
|
|
zend_objects_clone_obj, /* clone_obj */
|
|
|
|
zend_std_read_property, /* read_property */
|
|
zend_std_write_property, /* write_property */
|
|
zend_std_read_dimension, /* read_dimension */
|
|
zend_std_write_dimension, /* write_dimension */
|
|
zend_std_get_property_ptr_ptr, /* get_property_ptr_ptr */
|
|
NULL, /* get */
|
|
NULL, /* set */
|
|
zend_std_has_property, /* has_property */
|
|
zend_std_unset_property, /* unset_property */
|
|
zend_std_has_dimension, /* has_dimension */
|
|
zend_std_unset_dimension, /* unset_dimension */
|
|
zend_std_get_properties, /* get_properties */
|
|
zend_std_get_method, /* get_method */
|
|
NULL, /* call_method */
|
|
zend_std_get_constructor, /* get_constructor */
|
|
zend_std_object_get_class, /* get_class_entry */
|
|
zend_std_object_get_class_name, /* get_class_name */
|
|
zend_std_compare_objects, /* compare_objects */
|
|
NULL, /* cast_object */
|
|
};
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* indent-tabs-mode: t
|
|
* End:
|
|
*/
|