1/*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2015 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Author: Sascha Schumann <sascha@schumann.cx> |
16 +----------------------------------------------------------------------+
17*/
18
19/* $Id$ */
20
21#include "php.h"
22#include "basic_functions.h"
23#include "php_incomplete_class.h"
24
25#define INCOMPLETE_CLASS_MSG \
26 "The script tried to execute a method or " \
27 "access a property of an incomplete object. " \
28 "Please ensure that the class definition \"%s\" of the object " \
29 "you are trying to operate on was loaded _before_ " \
30 "unserialize() gets called or provide a __autoload() function " \
31 "to load the class definition "
32
33static zend_object_handlers php_incomplete_object_handlers;
34
35/* {{{ incomplete_class_message
36 */
37static void incomplete_class_message(zval *object, int error_type TSRMLS_DC)
38{
39 char *class_name;
40 zend_bool class_name_alloced = 1;
41
42 class_name = php_lookup_class_name(object, NULL);
43
44 if (!class_name) {
45 class_name_alloced = 0;
46 class_name = "unknown";
47 }
48
49 php_error_docref(NULL TSRMLS_CC, error_type, INCOMPLETE_CLASS_MSG, class_name);
50
51 if (class_name_alloced) {
52 efree(class_name);
53 }
54}
55/* }}} */
56
57static zval *incomplete_class_get_property(zval *object, zval *member, int type, const zend_literal *key TSRMLS_DC) /* {{{ */
58{
59 incomplete_class_message(object, E_NOTICE TSRMLS_CC);
60
61 if (type == BP_VAR_W || type == BP_VAR_RW) {
62 return EG(error_zval_ptr);
63 } else {
64 return EG(uninitialized_zval_ptr);
65 }
66}
67/* }}} */
68
69static void incomplete_class_write_property(zval *object, zval *member, zval *value, const zend_literal *key TSRMLS_DC) /* {{{ */
70{
71 incomplete_class_message(object, E_NOTICE TSRMLS_CC);
72}
73/* }}} */
74
75static zval **incomplete_class_get_property_ptr_ptr(zval *object, zval *member, int type, const zend_literal *key TSRMLS_DC) /* {{{ */
76{
77 incomplete_class_message(object, E_NOTICE TSRMLS_CC);
78 return &EG(error_zval_ptr);
79}
80/* }}} */
81
82static void incomplete_class_unset_property(zval *object, zval *member, const zend_literal *key TSRMLS_DC) /* {{{ */
83{
84 incomplete_class_message(object, E_NOTICE TSRMLS_CC);
85}
86/* }}} */
87
88static int incomplete_class_has_property(zval *object, zval *member, int check_empty, const zend_literal *key TSRMLS_DC) /* {{{ */
89{
90 incomplete_class_message(object, E_NOTICE TSRMLS_CC);
91 return 0;
92}
93/* }}} */
94
95static union _zend_function *incomplete_class_get_method(zval **object, char *method, int method_len, const zend_literal *key TSRMLS_DC) /* {{{ */
96{
97 incomplete_class_message(*object, E_ERROR TSRMLS_CC);
98 return NULL;
99}
100/* }}} */
101
102/* {{{ php_create_incomplete_class
103 */
104static zend_object_value php_create_incomplete_object(zend_class_entry *class_type TSRMLS_DC)
105{
106 zend_object *object;
107 zend_object_value value;
108
109 value = zend_objects_new(&object, class_type TSRMLS_CC);
110 value.handlers = &php_incomplete_object_handlers;
111
112 object_properties_init(object, class_type);
113
114 return value;
115}
116
117PHPAPI zend_class_entry *php_create_incomplete_class(TSRMLS_D)
118{
119 zend_class_entry incomplete_class;
120
121 INIT_CLASS_ENTRY(incomplete_class, INCOMPLETE_CLASS, NULL);
122 incomplete_class.create_object = php_create_incomplete_object;
123
124 memcpy(&php_incomplete_object_handlers, &std_object_handlers, sizeof(zend_object_handlers));
125 php_incomplete_object_handlers.read_property = incomplete_class_get_property;
126 php_incomplete_object_handlers.has_property = incomplete_class_has_property;
127 php_incomplete_object_handlers.unset_property = incomplete_class_unset_property;
128 php_incomplete_object_handlers.write_property = incomplete_class_write_property;
129 php_incomplete_object_handlers.get_property_ptr_ptr = incomplete_class_get_property_ptr_ptr;
130 php_incomplete_object_handlers.get_method = incomplete_class_get_method;
131
132 return zend_register_internal_class(&incomplete_class TSRMLS_CC);
133}
134/* }}} */
135
136/* {{{ php_lookup_class_name
137 */
138PHPAPI char *php_lookup_class_name(zval *object, zend_uint *nlen)
139{
140 zval **val;
141 char *retval = NULL;
142 HashTable *object_properties;
143 TSRMLS_FETCH();
144
145 object_properties = Z_OBJPROP_P(object);
146
147 if (zend_hash_find(object_properties, MAGIC_MEMBER, sizeof(MAGIC_MEMBER), (void **) &val) == SUCCESS && Z_TYPE_PP(val) == IS_STRING) {
148 retval = estrndup(Z_STRVAL_PP(val), Z_STRLEN_PP(val));
149
150 if (nlen) {
151 *nlen = Z_STRLEN_PP(val);
152 }
153 }
154
155 return retval;
156}
157/* }}} */
158
159/* {{{ php_store_class_name
160 */
161PHPAPI void php_store_class_name(zval *object, const char *name, zend_uint len)
162{
163 zval *val;
164 TSRMLS_FETCH();
165
166 MAKE_STD_ZVAL(val);
167
168 Z_TYPE_P(val) = IS_STRING;
169 Z_STRVAL_P(val) = estrndup(name, len);
170 Z_STRLEN_P(val) = len;
171
172 zend_hash_update(Z_OBJPROP_P(object), MAGIC_MEMBER, sizeof(MAGIC_MEMBER), &val, sizeof(val), NULL);
173}
174/* }}} */
175
176/*
177 * Local variables:
178 * tab-width: 4
179 * c-basic-offset: 4
180 * End:
181 * vim600: sw=4 ts=4 fdm=marker
182 * vim<600: sw=4 ts=4
183 */
184