Annotation of embedaddon/php/ext/standard/incomplete_class.c, revision 1.1

1.1     ! misho       1: /*
        !             2:    +----------------------------------------------------------------------+
        !             3:    | PHP Version 5                                                        |
        !             4:    +----------------------------------------------------------------------+
        !             5:    | Copyright (c) 1997-2012 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: incomplete_class.c 321634 2012-01-01 13:15:04Z felipe $ */
        !            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: 
        !            33: static zend_object_handlers php_incomplete_object_handlers;
        !            34: 
        !            35: /* {{{ incomplete_class_message
        !            36:  */
        !            37: static 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: 
        !            57: static zval *incomplete_class_get_property(zval *object, zval *member, int type 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: 
        !            69: static void incomplete_class_write_property(zval *object, zval *member, zval *value TSRMLS_DC) /* {{{ */
        !            70: {
        !            71:        incomplete_class_message(object, E_NOTICE TSRMLS_CC);
        !            72: }
        !            73: /* }}} */
        !            74:        
        !            75: static zval **incomplete_class_get_property_ptr_ptr(zval *object, zval *member TSRMLS_DC) /* {{{ */
        !            76: {
        !            77:        incomplete_class_message(object, E_NOTICE TSRMLS_CC);
        !            78:        return &EG(error_zval_ptr);
        !            79: }
        !            80: /* }}} */
        !            81: 
        !            82: static void incomplete_class_unset_property(zval *object, zval *member TSRMLS_DC) /* {{{ */
        !            83: {
        !            84:        incomplete_class_message(object, E_NOTICE TSRMLS_CC);
        !            85: }
        !            86: /* }}} */
        !            87: 
        !            88: static int incomplete_class_has_property(zval *object, zval *member, int check_empty TSRMLS_DC) /* {{{ */
        !            89: {
        !            90:        incomplete_class_message(object, E_NOTICE TSRMLS_CC);
        !            91:        return 0;
        !            92: }
        !            93: /* }}} */
        !            94: 
        !            95: static union _zend_function *incomplete_class_get_method(zval **object, char *method, int method_len TSRMLS_DC) /* {{{ */
        !            96: {
        !            97:        incomplete_class_message(*object, E_ERROR TSRMLS_CC);
        !            98:        return NULL;
        !            99: }
        !           100: /* }}} */
        !           101: 
        !           102: /* {{{ php_create_incomplete_class
        !           103:  */
        !           104: static 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:        ALLOC_HASHTABLE(object->properties);
        !           113:        zend_hash_init(object->properties, 0, NULL, ZVAL_PTR_DTOR, 0);
        !           114:        return value;
        !           115: }
        !           116: 
        !           117: PHPAPI 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:  */
        !           138: PHPAPI 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) {
        !           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:  */
        !           161: PHPAPI 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:  */

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