diff options
Diffstat (limited to 'Zend/zend_object_handlers.c')
| -rw-r--r-- | Zend/zend_object_handlers.c | 1055 |
1 files changed, 0 insertions, 1055 deletions
diff --git a/Zend/zend_object_handlers.c b/Zend/zend_object_handlers.c deleted file mode 100644 index 49b5e1d6cf..0000000000 --- a/Zend/zend_object_handlers.c +++ /dev/null @@ -1,1055 +0,0 @@ -/* - +----------------------------------------------------------------------+ - | Zend Engine | - +----------------------------------------------------------------------+ - | Copyright (c) 1998-2005 Zend Technologies Ltd. (http://www.zend.com) | - +----------------------------------------------------------------------+ - | This source file is subject to version 2.00 of the Zend 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.zend.com/license/2_00.txt. | - | If you did not receive a copy of the Zend license and are unable to | - | obtain it through the world-wide-web, please send a note to | - | license@zend.com so we can mail you a copy immediately. | - +----------------------------------------------------------------------+ - | Authors: Andi Gutmans <andi@zend.com> | - | Zeev Suraski <zeev@zend.com> | - +----------------------------------------------------------------------+ -*/ - -/* $Id$ */ - -#include "zend.h" -#include "zend_globals.h" -#include "zend_variables.h" -#include "zend_API.h" -#include "zend_objects.h" -#include "zend_objects_API.h" -#include "zend_object_handlers.h" -#include "zend_interfaces.h" - -#define DEBUG_OBJECT_HANDLERS 0 - -#define Z_OBJ_P(zval_p) zend_objects_get_address(zval_p TSRMLS_CC) - -/* - __X accessors explanation: - - if we have __get and property that is not part of the properties array is - requested, we call __get handler. If it fails, we return uninitialized. - - if we have __set and property that is not part of the properties array is - set, we call __set handler. If it fails, we do not change the array. - - for both handlers above, when we are inside __get/__set, no further calls for - __get/__set for these objects will be made, to prevent endless recursion and - enable accessors to change properties array. - - if we have __call and method which is not part of the class function table is - called, we cal __call handler. -*/ - -static HashTable *zend_std_get_properties(zval *object TSRMLS_DC) -{ - zend_object *zobj; - zobj = Z_OBJ_P(object); - return zobj->properties; -} - -static zval *zend_std_call_getter(zval *object, zval *member TSRMLS_DC) -{ - zval *retval = NULL; - zend_class_entry *ce = Z_OBJCE_P(object); - - /* __get handler is called with one argument: - property name - - it should return whether the call was successfull or not - */ - - SEPARATE_ARG_IF_REF(member); - - zend_call_method_with_1_params(&object, ce, &ce->__get, ZEND_GET_FUNC_NAME, &retval, member); - - zval_ptr_dtor(&member); - - if (retval) { - retval->refcount--; - } - - return retval; -} - -static int zend_std_call_setter(zval *object, zval *member, zval *value TSRMLS_DC) -{ - zval *retval = NULL; - int result; - zend_class_entry *ce = Z_OBJCE_P(object); - - SEPARATE_ARG_IF_REF(member); - value->refcount++; - - /* __set handler is called with two arguments: - property name - value to be set - - it should return whether the call was successfull or not - */ - zend_call_method_with_2_params(&object, ce, &ce->__set, ZEND_SET_FUNC_NAME, &retval, member, value); - - zval_ptr_dtor(&member); - zval_ptr_dtor(&value); - - if (retval) { - result = i_zend_is_true(retval) ? SUCCESS : FAILURE; - zval_ptr_dtor(&retval); - return result; - } else { - return FAILURE; - } -} - -static void zend_std_call_unsetter(zval *object, zval *member TSRMLS_DC) -{ - zend_class_entry *ce = Z_OBJCE_P(object); - - /* __unset handler is called with one argument: - property name - */ - - SEPARATE_ARG_IF_REF(member); - - zend_call_method_with_1_params(&object, ce, &ce->__unset, ZEND_UNSET_FUNC_NAME, NULL, member); - - zval_ptr_dtor(&member); -} - -static zval *zend_std_call_issetter(zval *object, zval *member TSRMLS_DC) -{ - zval *retval = NULL; - zend_class_entry *ce = Z_OBJCE_P(object); - - /* __isset handler is called with one argument: - property name - - it should return whether the property is set or not - */ - - SEPARATE_ARG_IF_REF(member); - - zend_call_method_with_1_params(&object, ce, &ce->__isset, ZEND_ISSET_FUNC_NAME, &retval, member); - - zval_ptr_dtor(&member); - - return retval; -} - -static int zend_verify_property_access(zend_property_info *property_info, zend_class_entry *ce TSRMLS_DC) -{ - switch (property_info->flags & ZEND_ACC_PPP_MASK) { - case ZEND_ACC_PUBLIC: - return 1; - case ZEND_ACC_PROTECTED: - return zend_check_protected(ce, EG(scope)); - case ZEND_ACC_PRIVATE: - if (ce==EG(scope) && EG(scope)) { - return 1; - } else { - return 0; - } - break; - } - return 0; -} - -static inline zend_bool is_derived_class(zend_class_entry *child_class, zend_class_entry *parent_class) -{ - child_class = child_class->parent; - while (child_class) { - if (child_class == parent_class) { - return 1; - } - child_class = child_class->parent; - } - - return 0; -} - -ZEND_API struct _zend_property_info *zend_get_property_info(zend_class_entry *ce, zval *member, int silent TSRMLS_DC) -{ - zend_property_info *property_info = NULL; - zend_property_info *scope_property_info; - zend_bool denied_access = 0; - ulong h; - - if (Z_STRVAL_P(member)[0] == '\0') { - if (!silent) { - if (Z_STRLEN_P(member) == 0) { - zend_error(E_ERROR, "Cannot access empty property"); - } else { - zend_error(E_ERROR, "Cannot access property started with '\\0'"); - } - } - return NULL; - } - h = zend_get_hash_value(Z_STRVAL_P(member), Z_STRLEN_P(member) + 1); - if (zend_hash_quick_find(&ce->properties_info, Z_STRVAL_P(member), Z_STRLEN_P(member)+1, h, (void **) &property_info)==SUCCESS) { - if(property_info->flags & ZEND_ACC_SHADOW) { - /* if it's a shadow - go to access it's private */ - property_info = NULL; - } else { - if (zend_verify_property_access(property_info, ce TSRMLS_CC)) { - if (property_info->flags & ZEND_ACC_CHANGED - && !(property_info->flags & ZEND_ACC_PRIVATE)) { - /* We still need to make sure that we're not in a context - * where the right property is a different 'statically linked' private - * continue checking below... - */ - } else { - if (!silent && (property_info->flags & ZEND_ACC_STATIC)) { - zend_error(E_STRICT, "Accessing static property %s::$%s as non static", ce->name, Z_STRVAL_P(member)); - } - return property_info; - } - } else { - /* Try to look in the scope instead */ - denied_access = 1; - } - } - } - if (EG(scope) != ce - && is_derived_class(ce, EG(scope)) - && EG(scope) - && zend_hash_quick_find(&EG(scope)->properties_info, Z_STRVAL_P(member), Z_STRLEN_P(member)+1, h, (void **) &scope_property_info)==SUCCESS - && scope_property_info->flags & ZEND_ACC_PRIVATE) { - return scope_property_info; - } else if (property_info) { - if (denied_access) { - /* Information was available, but we were denied access. Error out. */ - if (silent) { - return NULL; - } - zend_error(E_ERROR, "Cannot access %s property %s::$%s", zend_visibility_string(property_info->flags), ce->name, Z_STRVAL_P(member)); - } else { - /* fall through, return property_info... */ - } - } else { - EG(std_property_info).flags = ZEND_ACC_PUBLIC; - EG(std_property_info).name = Z_STRVAL_P(member); - EG(std_property_info).name_length = Z_STRLEN_P(member); - EG(std_property_info).h = zend_get_hash_value(EG(std_property_info).name, EG(std_property_info).name_length+1); - property_info = &EG(std_property_info); - } - return property_info; -} - - -ZEND_API int zend_check_property_access(zend_object *zobj, char *prop_info_name TSRMLS_DC) -{ - zend_property_info *property_info; - char *class_name, *prop_name; - zval member; - - zend_unmangle_property_name(prop_info_name, &class_name, &prop_name); - ZVAL_STRING(&member, prop_name, 0); - property_info = zend_get_property_info(zobj->ce, &member, 1 TSRMLS_CC); - if (!property_info) { - return FAILURE; - } - if (prop_info_name[0] == '\0' && prop_info_name[1] != '*') { - if (!(property_info->flags & ZEND_ACC_PRIVATE)) { - /* we we're looking for a private prop but found a non private one of the same name */ - return FAILURE; - } else if (strcmp(prop_info_name+1, property_info->name+1)) { - /* we we're looking for a private prop but found a private one of the same name but another class */ - return FAILURE; - } - } - return zend_verify_property_access(property_info, zobj->ce TSRMLS_CC) ? SUCCESS : FAILURE; -} - -zval *zend_std_read_property(zval *object, zval *member, int type TSRMLS_DC) -{ - zend_object *zobj; - zval *tmp_member = NULL; - zval **retval; - zval *rv = NULL; - zend_property_info *property_info; - int silent; - zend_bool use_get; - - silent = (type == BP_VAR_IS); - zobj = Z_OBJ_P(object); - use_get = (zobj->ce->__get && !zobj->in_get); - - if (member->type != IS_STRING) { - ALLOC_ZVAL(tmp_member); - *tmp_member = *member; - INIT_PZVAL(tmp_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 - - /* make zend_get_property_info silent if we have getter - we may want to use it */ - property_info = zend_get_property_info(zobj->ce, member, use_get TSRMLS_CC); - - if (!property_info || zend_hash_quick_find(zobj->properties, property_info->name, property_info->name_length+1, property_info->h, (void **) &retval) == FAILURE) { - if (use_get) { - /* have getter - try with it! */ - zobj->in_get = 1; /* prevent circular getting */ - rv = zend_std_call_getter(object, member TSRMLS_CC); - zobj->in_get = 0; - - if (rv) { - retval = &rv; - } else { - retval = &EG(uninitialized_zval_ptr); - } - } else { - if (!silent) { - zend_error(E_NOTICE,"Undefined property: %s::$%s", zobj->ce->name, Z_STRVAL_P(member)); - } - retval = &EG(uninitialized_zval_ptr); - } - } - if (tmp_member) { - (*retval)->refcount++; - zval_ptr_dtor(&tmp_member); - (*retval)->refcount--; - } - return *retval; -} - - -static void zend_std_write_property(zval *object, zval *member, zval *value TSRMLS_DC) -{ - zend_object *zobj; - zval *tmp_member = NULL; - zval **variable_ptr; - int setter_done = 0; - zend_property_info *property_info; - zend_bool use_set; - - zobj = Z_OBJ_P(object); - use_set = (zobj->ce->__set && !zobj->in_set); - - if (member->type != IS_STRING) { - ALLOC_ZVAL(tmp_member); - *tmp_member = *member; - INIT_PZVAL(tmp_member); - zval_copy_ctor(tmp_member); - convert_to_string(tmp_member); - member = tmp_member; - } - - property_info = zend_get_property_info(zobj->ce, member, use_set TSRMLS_CC); - - if (property_info && zend_hash_quick_find(zobj->properties, property_info->name, property_info->name_length+1, property_info->h, (void **) &variable_ptr) == SUCCESS) { - if (*variable_ptr == value) { - /* if we already have this value there, we don't actually need to do anything */ - setter_done = 1; - } else { - /* if we are assigning reference, we shouldn't move it, but instead assign variable - to the same pointer */ - if (PZVAL_IS_REF(*variable_ptr)) { - zval_dtor(*variable_ptr); /* old value should be destroyed */ - /* To check: can't *variable_ptr be some system variable like error_zval here? */ - (*variable_ptr)->type = value->type; - (*variable_ptr)->value = value->value; - if (value->refcount>0) { - zval_copy_ctor(*variable_ptr); - } - setter_done = 1; - } - } - } else { - if (use_set) { - zobj->in_set = 1; /* prevent circular setting */ - if (zend_std_call_setter(object, member, value TSRMLS_CC) != SUCCESS) { - /* for now, just ignore it - __set should take care of warnings, etc. */ - } - setter_done = 1; - zobj->in_set = 0; - } - } - - if (!setter_done) { - zval **foo; - - /* if we assign referenced variable, we should separate it */ - value->refcount++; - if (PZVAL_IS_REF(value)) { - SEPARATE_ZVAL(&value); - } - zend_hash_quick_update(zobj->properties, property_info->name, property_info->name_length+1, property_info->h, &value, sizeof(zval *), (void **) &foo); - } - if (tmp_member) { - zval_ptr_dtor(&tmp_member); - } -} - -zval *zend_std_read_dimension(zval *object, zval *offset, int type TSRMLS_DC) -{ - zend_class_entry *ce = Z_OBJCE_P(object); - zval *retval; - - if (instanceof_function_ex(ce, zend_ce_arrayaccess, 1 TSRMLS_CC)) { - if(offset == NULL) { - /* [] construct */ - ALLOC_INIT_ZVAL(offset); - } else { - SEPARATE_ARG_IF_REF(offset); - } - zend_call_method_with_1_params(&object, ce, NULL, "offsetget", &retval, offset); - - zval_ptr_dtor(&offset); - - if (!retval) { - if (!EG(exception)) { - zend_error(E_ERROR, "Undefined offset for object of type %s used as array", ce->name); - } - return 0; - } - - /* Undo PZVAL_LOCK() */ - retval->refcount--; - - return retval; - } else { - zend_error(E_ERROR, "Cannot use object of type %s as array", ce->name); - return 0; - } -} - - -static void zend_std_write_dimension(zval *object, zval *offset, zval *value TSRMLS_DC) -{ - zend_class_entry *ce = Z_OBJCE_P(object); - - if (instanceof_function_ex(ce, zend_ce_arrayaccess, 1 TSRMLS_CC)) { - if (!offset) { - ALLOC_INIT_ZVAL(offset); - } else { - SEPARATE_ARG_IF_REF(offset); - } - zend_call_method_with_2_params(&object, ce, NULL, "offsetset", NULL, offset, value); - zval_ptr_dtor(&offset); - } else { - zend_error(E_ERROR, "Cannot use object of type %s as array", ce->name); - } -} - - -static int zend_std_has_dimension(zval *object, zval *offset, int check_empty TSRMLS_DC) -{ - zend_class_entry *ce = Z_OBJCE_P(object); - zval *retval; - int result; - - if (instanceof_function_ex(ce, zend_ce_arrayaccess, 1 TSRMLS_CC)) { - SEPARATE_ARG_IF_REF(offset); - zend_call_method_with_1_params(&object, ce, NULL, "offsetexists", &retval, offset); - if (retval) { - result = i_zend_is_true(retval); - zval_ptr_dtor(&retval); - if (check_empty && result && !EG(exception)) { - zend_call_method_with_1_params(&object, ce, NULL, "offsetget", &retval, offset); - if (retval) { - result = i_zend_is_true(retval); - zval_ptr_dtor(&retval); - } - } - } else { - result = 0; - } - zval_ptr_dtor(&offset); - } else { - zend_error(E_ERROR, "Cannot use object of type %s as array", ce->name); - return 0; - } - return result; -} - - -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; - zend_bool use_get; - - zobj = Z_OBJ_P(object); - use_get = (zobj->ce->__get && !zobj->in_get); - - 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->ce, member, use_get TSRMLS_CC); - - if (!property_info || zend_hash_quick_find(zobj->properties, property_info->name, property_info->name_length+1, property_info->h, (void **) &retval) == FAILURE) { - zval *new_zval; - - if (!use_get) { - /* 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 = NULL; - zend_property_info *property_info; - zend_bool use_unset; - - zobj = Z_OBJ_P(object); - use_unset = (zobj->ce->__unset && !zobj->in_unset); - - if (member->type != IS_STRING) { - ALLOC_ZVAL(tmp_member); - *tmp_member = *member; - INIT_PZVAL(tmp_member); - zval_copy_ctor(tmp_member); - convert_to_string(tmp_member); - member = tmp_member; - } - - property_info = zend_get_property_info(zobj->ce, member, 0 TSRMLS_CC); - - if (!property_info || zend_hash_del(zobj->properties, property_info->name, property_info->name_length+1) == FAILURE) { - if (use_unset) { - /* have unseter - try with it! */ - zobj->in_unset = 1; /* prevent circular unsetting */ - zend_std_call_unsetter(object, member TSRMLS_CC); - zobj->in_unset = 0; - } - } - - if (tmp_member) { - zval_ptr_dtor(&tmp_member); - } -} - - -static void zend_std_unset_dimension(zval *object, zval *offset TSRMLS_DC) -{ - zend_class_entry *ce = Z_OBJCE_P(object); - - if (instanceof_function_ex(ce, zend_ce_arrayaccess, 1 TSRMLS_CC)) { - SEPARATE_ARG_IF_REF(offset); - zend_call_method_with_1_params(&object, ce, NULL, "offsetunset", NULL, offset); - zval_ptr_dtor(&offset); - } 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) -{ - zend_internal_function *func = (zend_internal_function *)EG(function_state_ptr)->function; - zval *method_name_ptr, *method_args_ptr; - zval *method_result_ptr = NULL; - zend_class_entry *ce = Z_OBJCE_P(this_ptr); - - ALLOC_ZVAL(method_args_ptr); - INIT_PZVAL(method_args_ptr); - array_init(method_args_ptr); - - if (zend_copy_parameters_array(ZEND_NUM_ARGS(), method_args_ptr TSRMLS_CC) == FAILURE) { - zval_dtor(method_args_ptr); - zend_error(E_ERROR, "Cannot get arguments for __call"); - RETURN_FALSE; - } - - ALLOC_ZVAL(method_name_ptr); - INIT_PZVAL(method_name_ptr); - ZVAL_STRING(method_name_ptr, func->function_name, 0); /* no dup - it's a copy */ - - /* __call handler is called with two arguments: - method name - array of method parameters - - */ - zend_call_method_with_2_params(&this_ptr, ce, &ce->__call, ZEND_CALL_FUNC_NAME, &method_result_ptr, method_name_ptr, method_args_ptr); - - if (method_result_ptr) { - if (method_result_ptr->is_ref || method_result_ptr->refcount > 1) { - RETVAL_ZVAL(method_result_ptr, 1, 1); - } else { - RETVAL_ZVAL(method_result_ptr, 0, 1); - } - } - - /* now destruct all auxiliaries */ - zval_ptr_dtor(&method_args_ptr); - zval_ptr_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. - */ -static inline zend_function *zend_check_private_int(zend_function *fbc, zend_class_entry *ce, 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; -} - - -ZEND_API int zend_check_private(zend_function *fbc, zend_class_entry *ce, char *function_name_strval, int function_name_strlen TSRMLS_DC) -{ - return zend_check_private_int(fbc, ce, function_name_strval, function_name_strlen TSRMLS_CC) != 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_ptr, char *method_name, int method_len TSRMLS_DC) -{ - zend_object *zobj; - zend_function *fbc; - char *lc_method_name; - zval *object = *object_ptr; - - 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) { - free_alloca(lc_method_name); - 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); - call_user_call->pass_rest_by_reference = 0; - call_user_call->return_reference = ZEND_RETURN_VALUE; - - 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 - && priv_fbc->common.scope == EG(scope)) { - 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_int(fbc, object->value.obj.handlers->get_class_entry(object TSRMLS_CC), 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_int(fbc, EG(scope), 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 || (property_info->flags & ZEND_ACC_SHADOW)) { - 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 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)) { - if (!silent) { - zend_error(E_ERROR, "Cannot access %s property %s::$%s", zend_visibility_string(property_info->flags), ce->name, property_name); - } - return NULL; - } - - zend_update_class_constants(tmp_ce TSRMLS_CC); - - 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::$%s", ce->name, property_name); - } - } - - return retval; -} - - -ZEND_API zend_bool zend_std_unset_static_property(zend_class_entry *ce, char *property_name, int property_name_len TSRMLS_DC) -{ - zend_error(E_ERROR, "Attempt to unset static property %s::$%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 has_set_exists TSRMLS_DC) -{ - zend_object *zobj; - int result; - zval **value; - zval *tmp_member = NULL; - zend_property_info *property_info; - zend_bool use_isset; - - zobj = Z_OBJ_P(object); - use_isset = (zobj->ce->__isset && !zobj->in_isset); - - if (member->type != IS_STRING) { - ALLOC_ZVAL(tmp_member); - *tmp_member = *member; - INIT_PZVAL(tmp_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->ce, member, 1 TSRMLS_CC); - - if (!property_info || zend_hash_quick_find(zobj->properties, property_info->name, property_info->name_length+1, property_info->h, (void **) &value) == FAILURE) { - result = 0; - if (use_isset && (has_set_exists != 2)) { - zval *rv; - - /* have issetter - try with it! */ - zobj->in_isset = 1; /* prevent circular getting */ - rv = zend_std_call_issetter(object, member TSRMLS_CC); - zobj->in_isset = 0; - if (rv) { - result = zend_is_true(rv); - zval_ptr_dtor(&rv); - if (has_set_exists && result && !EG(exception) && zobj->ce->__get && !zobj->in_get) { - rv = zend_std_call_getter(object, member TSRMLS_CC); - if (rv) { - rv->refcount++; - result = i_zend_is_true(rv); - zval_ptr_dtor(&rv); - } - } - } - } - } else { - switch (has_set_exists) { - case 0: - result = (Z_TYPE_PP(value) != IS_NULL); - break; - default: - result = zend_is_true(*value); - break; - case 2: - result = 1; - break; - } - } - - if (tmp_member) { - zval_ptr_dtor(&tmp_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: - if (!zend_hash_exists(&Z_OBJCE_P(readobj)->function_table, "__tostring", sizeof("__tostring"))) { - return FAILURE; - } - 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, "", 0, 1); - } - *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 */ - NULL, /* count_elements */ -}; - -/* - * Local variables: - * tab-width: 4 - * c-basic-offset: 4 - * indent-tabs-mode: t - * End: - */ |