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php-src/Zend/zend_API.c
Niels Dossche e0b1b693e3
Fix OSS-Fuzz #371445205: Heap-use-after-free in attr_free 
zend_hash_get_current_key() does not return a string with incremented
refcount, so it shouldn't get released. This release caused a UAF later
when the attribute was destroyed. This wasn't noticed earlier because
object_init_with_constructor() was only ever tested with interned
strings.

Closes GH-16349.
2024-10-11 09:07:08 +02:00

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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 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@php.net> |
| Zeev Suraski <zeev@php.net> |
| Andrei Zmievski <andrei@php.net> |
| Dmitry Stogov <dmitry@php.net> |
+----------------------------------------------------------------------+
*/
#include "zend.h"
#include "zend_execute.h"
#include "zend_API.h"
#include "zend_modules.h"
#include "zend_extensions.h"
#include "zend_constants.h"
#include "zend_interfaces.h"
#include "zend_exceptions.h"
#include "zend_closures.h"
#include "zend_inheritance.h"
#include "zend_ini.h"
#include "zend_enum.h"
#include "zend_object_handlers.h"
#include "zend_observer.h"
#include <stdarg.h>
/* these variables are true statics/globals, and have to be mutex'ed on every access */
ZEND_API HashTable module_registry;
static zend_module_entry **module_request_startup_handlers;
static zend_module_entry **module_request_shutdown_handlers;
static zend_module_entry **module_post_deactivate_handlers;
static zend_module_entry **modules_dl_loaded;
static zend_class_entry **class_cleanup_handlers;
ZEND_API zend_result zend_get_parameters_array_ex(uint32_t param_count, zval *argument_array) /* {{{ */
{
zval *param_ptr;
uint32_t arg_count;
param_ptr = ZEND_CALL_ARG(EG(current_execute_data), 1);
arg_count = ZEND_CALL_NUM_ARGS(EG(current_execute_data));
if (param_count>arg_count) {
return FAILURE;
}
while (param_count-->0) {
ZVAL_COPY_VALUE(argument_array, param_ptr);
argument_array++;
param_ptr++;
}
return SUCCESS;
}
/* }}} */
ZEND_API zend_result zend_copy_parameters_array(uint32_t param_count, zval *argument_array) /* {{{ */
{
zval *param_ptr;
uint32_t arg_count;
param_ptr = ZEND_CALL_ARG(EG(current_execute_data), 1);
arg_count = ZEND_CALL_NUM_ARGS(EG(current_execute_data));
if (param_count>arg_count) {
return FAILURE;
}
while (param_count-->0) {
Z_TRY_ADDREF_P(param_ptr);
zend_hash_next_index_insert_new(Z_ARRVAL_P(argument_array), param_ptr);
param_ptr++;
}
return SUCCESS;
}
/* }}} */
ZEND_API ZEND_COLD void zend_wrong_param_count(void) /* {{{ */
{
const char *space;
const char *class_name = get_active_class_name(&space);
zend_argument_count_error("Wrong parameter count for %s%s%s()", class_name, space, get_active_function_name());
}
/* }}} */
ZEND_API ZEND_COLD void zend_wrong_property_read(zval *object, zval *property)
{
zend_string *tmp_property_name;
zend_string *property_name = zval_get_tmp_string(property, &tmp_property_name);
zend_error(E_WARNING, "Attempt to read property \"%s\" on %s", ZSTR_VAL(property_name), zend_zval_value_name(object));
zend_tmp_string_release(tmp_property_name);
}
/* Argument parsing API -- andrei */
ZEND_API const char *zend_get_type_by_const(int type) /* {{{ */
{
switch(type) {
case IS_FALSE:
case IS_TRUE:
case _IS_BOOL:
return "bool";
case IS_LONG:
return "int";
case IS_DOUBLE:
return "float";
case IS_STRING:
return "string";
case IS_OBJECT:
return "object";
case IS_RESOURCE:
return "resource";
case IS_NULL:
return "null";
case IS_CALLABLE:
return "callable";
case IS_ITERABLE:
return "iterable";
case IS_ARRAY:
return "array";
case IS_VOID:
return "void";
case IS_MIXED:
return "mixed";
case _IS_NUMBER:
return "int|float";
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API const char *zend_zval_value_name(const zval *arg)
{
ZVAL_DEREF(arg);
if (Z_ISUNDEF_P(arg)) {
return "null";
}
if (Z_TYPE_P(arg) == IS_OBJECT) {
return ZSTR_VAL(Z_OBJCE_P(arg)->name);
} else if (Z_TYPE_P(arg) == IS_FALSE) {
return "false";
} else if (Z_TYPE_P(arg) == IS_TRUE) {
return "true";
}
return zend_get_type_by_const(Z_TYPE_P(arg));
}
ZEND_API const char *zend_zval_type_name(const zval *arg)
{
ZVAL_DEREF(arg);
if (Z_ISUNDEF_P(arg)) {
return "null";
}
if (Z_TYPE_P(arg) == IS_OBJECT) {
return ZSTR_VAL(Z_OBJCE_P(arg)->name);
}
return zend_get_type_by_const(Z_TYPE_P(arg));
}
/* This API exists *only* for use in gettype().
* For anything else, you likely want zend_zval_type_name(). */
ZEND_API zend_string *zend_zval_get_legacy_type(const zval *arg) /* {{{ */
{
switch (Z_TYPE_P(arg)) {
case IS_NULL:
return ZSTR_KNOWN(ZEND_STR_NULL);
case IS_FALSE:
case IS_TRUE:
return ZSTR_KNOWN(ZEND_STR_BOOLEAN);
case IS_LONG:
return ZSTR_KNOWN(ZEND_STR_INTEGER);
case IS_DOUBLE:
return ZSTR_KNOWN(ZEND_STR_DOUBLE);
case IS_STRING:
return ZSTR_KNOWN(ZEND_STR_STRING);
case IS_ARRAY:
return ZSTR_KNOWN(ZEND_STR_ARRAY);
case IS_OBJECT:
return ZSTR_KNOWN(ZEND_STR_OBJECT);
case IS_RESOURCE:
if (zend_rsrc_list_get_rsrc_type(Z_RES_P(arg))) {
return ZSTR_KNOWN(ZEND_STR_RESOURCE);
} else {
return ZSTR_KNOWN(ZEND_STR_CLOSED_RESOURCE);
}
default:
return NULL;
}
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameters_none_error(void) /* {{{ */
{
int num_args = ZEND_CALL_NUM_ARGS(EG(current_execute_data));
zend_string *func_name = get_active_function_or_method_name();
zend_argument_count_error("%s() expects exactly 0 arguments, %d given", ZSTR_VAL(func_name), num_args);
zend_string_release(func_name);
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameters_count_error(uint32_t min_num_args, uint32_t max_num_args) /* {{{ */
{
uint32_t num_args = ZEND_CALL_NUM_ARGS(EG(current_execute_data));
zend_string *func_name = get_active_function_or_method_name();
zend_argument_count_error(
"%s() expects %s %d argument%s, %d given",
ZSTR_VAL(func_name),
min_num_args == max_num_args ? "exactly" : num_args < min_num_args ? "at least" : "at most",
num_args < min_num_args ? min_num_args : max_num_args,
(num_args < min_num_args ? min_num_args : max_num_args) == 1 ? "" : "s",
num_args
);
zend_string_release(func_name);
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_error(int error_code, uint32_t num, char *name, zend_expected_type expected_type, zval *arg) /* {{{ */
{
switch (error_code) {
case ZPP_ERROR_WRONG_CALLBACK:
zend_wrong_callback_error(num, name);
break;
case ZPP_ERROR_WRONG_CALLBACK_OR_NULL:
zend_wrong_callback_or_null_error(num, name);
break;
case ZPP_ERROR_WRONG_CLASS:
zend_wrong_parameter_class_error(num, name, arg);
break;
case ZPP_ERROR_WRONG_CLASS_OR_NULL:
zend_wrong_parameter_class_or_null_error(num, name, arg);
break;
case ZPP_ERROR_WRONG_CLASS_OR_STRING:
zend_wrong_parameter_class_or_string_error(num, name, arg);
break;
case ZPP_ERROR_WRONG_CLASS_OR_STRING_OR_NULL:
zend_wrong_parameter_class_or_string_or_null_error(num, name, arg);
break;
case ZPP_ERROR_WRONG_CLASS_OR_LONG:
zend_wrong_parameter_class_or_long_error(num, name, arg);
break;
case ZPP_ERROR_WRONG_CLASS_OR_LONG_OR_NULL:
zend_wrong_parameter_class_or_long_or_null_error(num, name, arg);
break;
case ZPP_ERROR_WRONG_ARG:
zend_wrong_parameter_type_error(num, expected_type, arg);
break;
case ZPP_ERROR_UNEXPECTED_EXTRA_NAMED:
zend_unexpected_extra_named_error();
break;
case ZPP_ERROR_FAILURE:
ZEND_ASSERT(EG(exception) && "Should have produced an error already");
break;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_type_error(uint32_t num, zend_expected_type expected_type, zval *arg) /* {{{ */
{
static const char * const expected_error[] = {
Z_EXPECTED_TYPES(Z_EXPECTED_TYPE_STR)
NULL
};
if (EG(exception)) {
return;
}
if ((expected_type == Z_EXPECTED_PATH || expected_type == Z_EXPECTED_PATH_OR_NULL)
&& Z_TYPE_P(arg) == IS_STRING) {
zend_argument_value_error(num, "must not contain any null bytes");
return;
}
zend_argument_type_error(num, "must be %s, %s given", expected_error[expected_type], zend_zval_value_name(arg));
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
if (EG(exception)) {
return;
}
zend_argument_type_error(num, "must be of type %s, %s given", name, zend_zval_value_name(arg));
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_null_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
if (EG(exception)) {
return;
}
zend_argument_type_error(num, "must be of type ?%s, %s given", name, zend_zval_value_name(arg));
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_long_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
if (EG(exception)) {
return;
}
zend_argument_type_error(num, "must be of type %s|int, %s given", name, zend_zval_value_name(arg));
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_long_or_null_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
if (EG(exception)) {
return;
}
zend_argument_type_error(num, "must be of type %s|int|null, %s given", name, zend_zval_value_name(arg));
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_string_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
if (EG(exception)) {
return;
}
zend_argument_type_error(num, "must be of type %s|string, %s given", name, zend_zval_value_name(arg));
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_string_or_null_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
if (EG(exception)) {
return;
}
zend_argument_type_error(num, "must be of type %s|string|null, %s given", name, zend_zval_value_name(arg));
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_callback_error(uint32_t num, char *error) /* {{{ */
{
if (!EG(exception)) {
zend_argument_type_error(num, "must be a valid callback, %s", error);
}
efree(error);
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_callback_or_null_error(uint32_t num, char *error) /* {{{ */
{
if (!EG(exception)) {
zend_argument_type_error(num, "must be a valid callback or null, %s", error);
}
efree(error);
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_unexpected_extra_named_error(void)
{
const char *space;
const char *class_name = get_active_class_name(&space);
zend_argument_count_error("%s%s%s() does not accept unknown named parameters",
class_name, space, get_active_function_name());
}
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_argument_error_variadic(zend_class_entry *error_ce, uint32_t arg_num, const char *format, va_list va) /* {{{ */
{
zend_string *func_name;
const char *arg_name;
char *message = NULL;
if (EG(exception)) {
return;
}
func_name = get_active_function_or_method_name();
arg_name = get_active_function_arg_name(arg_num);
zend_vspprintf(&message, 0, format, va);
zend_throw_error(error_ce, "%s(): Argument #%d%s%s%s %s",
ZSTR_VAL(func_name), arg_num,
arg_name ? " ($" : "", arg_name ? arg_name : "", arg_name ? ")" : "", message
);
efree(message);
zend_string_release(func_name);
}
/* }}} */
ZEND_API ZEND_COLD void zend_argument_error(zend_class_entry *error_ce, uint32_t arg_num, const char *format, ...) /* {{{ */
{
va_list va;
va_start(va, format);
zend_argument_error_variadic(error_ce, arg_num, format, va);
va_end(va);
}
/* }}} */
ZEND_API ZEND_COLD void zend_argument_type_error(uint32_t arg_num, const char *format, ...) /* {{{ */
{
va_list va;
va_start(va, format);
zend_argument_error_variadic(zend_ce_type_error, arg_num, format, va);
va_end(va);
}
/* }}} */
ZEND_API ZEND_COLD void zend_argument_value_error(uint32_t arg_num, const char *format, ...) /* {{{ */
{
va_list va;
va_start(va, format);
zend_argument_error_variadic(zend_ce_value_error, arg_num, format, va);
va_end(va);
}
/* }}} */
ZEND_API ZEND_COLD void zend_argument_must_not_be_empty_error(uint32_t arg_num)
{
zend_argument_value_error(arg_num, "must not be empty");
}
ZEND_API ZEND_COLD void zend_class_redeclaration_error_ex(int type, zend_string *new_name, zend_class_entry *old_ce)
{
if (old_ce->type == ZEND_INTERNAL_CLASS) {
zend_error(type, "Cannot redeclare %s %s",
zend_get_object_type(old_ce),
ZSTR_VAL(new_name));
} else {
zend_error(type, "Cannot redeclare %s %s (previously declared in %s:%d)",
zend_get_object_type(old_ce),
ZSTR_VAL(new_name),
ZSTR_VAL(old_ce->info.user.filename),
old_ce->info.user.line_start);
}
}
ZEND_API ZEND_COLD void zend_class_redeclaration_error(int type, zend_class_entry *old_ce)
{
zend_class_redeclaration_error_ex(type, old_ce->name, old_ce);
}
ZEND_API bool ZEND_FASTCALL zend_parse_arg_class(zval *arg, zend_class_entry **pce, uint32_t num, bool check_null) /* {{{ */
{
zend_class_entry *ce_base = *pce;
if (check_null && Z_TYPE_P(arg) == IS_NULL) {
*pce = NULL;
return 1;
}
if (!try_convert_to_string(arg)) {
*pce = NULL;
return 0;
}
*pce = zend_lookup_class(Z_STR_P(arg));
if (ce_base) {
if ((!*pce || !instanceof_function(*pce, ce_base))) {
zend_argument_type_error(num, "must be a class name derived from %s, %s given", ZSTR_VAL(ce_base->name), Z_STRVAL_P(arg));
*pce = NULL;
return 0;
}
}
if (!*pce) {
zend_argument_type_error(num, "must be a valid class name, %s given", Z_STRVAL_P(arg));
return 0;
}
return 1;
}
/* }}} */
static ZEND_COLD bool zend_null_arg_deprecated(const char *fallback_type, uint32_t arg_num) {
zend_function *func = zend_active_function();
ZEND_ASSERT(arg_num > 0);
uint32_t arg_offset = arg_num - 1;
if (arg_offset >= func->common.num_args) {
ZEND_ASSERT(func->common.fn_flags & ZEND_ACC_VARIADIC);
arg_offset = func->common.num_args;
}
zend_arg_info *arg_info = &func->common.arg_info[arg_offset];
zend_string *func_name = get_active_function_or_method_name();
const char *arg_name = get_active_function_arg_name(arg_num);
/* If no type is specified in arginfo, use the specified fallback_type determined through
* zend_parse_parameters instead. */
zend_string *type_str = zend_type_to_string(arg_info->type);
const char *type = type_str ? ZSTR_VAL(type_str) : fallback_type;
zend_error(E_DEPRECATED,
"%s(): Passing null to parameter #%" PRIu32 "%s%s%s of type %s is deprecated",
ZSTR_VAL(func_name), arg_num,
arg_name ? " ($" : "", arg_name ? arg_name : "", arg_name ? ")" : "",
type);
zend_string_release(func_name);
if (type_str) {
zend_string_release(type_str);
}
return !EG(exception);
}
ZEND_API bool ZEND_FASTCALL zend_parse_arg_bool_weak(const zval *arg, bool *dest, uint32_t arg_num) /* {{{ */
{
if (EXPECTED(Z_TYPE_P(arg) <= IS_STRING)) {
if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("bool", arg_num)) {
return 0;
}
*dest = zend_is_true(arg);
} else {
return 0;
}
return 1;
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_bool_slow(const zval *arg, bool *dest, uint32_t arg_num) /* {{{ */
{
if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
return 0;
}
return zend_parse_arg_bool_weak(arg, dest, arg_num);
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_flf_parse_arg_bool_slow(const zval *arg, bool *dest, uint32_t arg_num)
{
if (UNEXPECTED(ZEND_FLF_ARG_USES_STRICT_TYPES())) {
return 0;
}
return zend_parse_arg_bool_weak(arg, dest, arg_num);
}
ZEND_API bool ZEND_FASTCALL zend_parse_arg_long_weak(const zval *arg, zend_long *dest, uint32_t arg_num) /* {{{ */
{
if (EXPECTED(Z_TYPE_P(arg) == IS_DOUBLE)) {
if (UNEXPECTED(zend_isnan(Z_DVAL_P(arg)))) {
return 0;
}
if (UNEXPECTED(!ZEND_DOUBLE_FITS_LONG(Z_DVAL_P(arg)))) {
return 0;
} else {
zend_long lval = zend_dval_to_lval(Z_DVAL_P(arg));
if (UNEXPECTED(!zend_is_long_compatible(Z_DVAL_P(arg), lval))) {
/* Check arg_num is not (uint32_t)-1, as otherwise its called by
* zend_verify_weak_scalar_type_hint_no_sideeffect() */
if (arg_num != (uint32_t)-1) {
zend_incompatible_double_to_long_error(Z_DVAL_P(arg));
}
if (UNEXPECTED(EG(exception))) {
return 0;
}
}
*dest = lval;
}
} else if (EXPECTED(Z_TYPE_P(arg) == IS_STRING)) {
double d;
uint8_t type;
if (UNEXPECTED((type = is_numeric_str_function(Z_STR_P(arg), dest, &d)) != IS_LONG)) {
if (EXPECTED(type != 0)) {
zend_long lval;
if (UNEXPECTED(zend_isnan(d))) {
return 0;
}
if (UNEXPECTED(!ZEND_DOUBLE_FITS_LONG(d))) {
return 0;
}
lval = zend_dval_to_lval(d);
/* This only checks for a fractional part as if doesn't fit it already throws a TypeError */
if (UNEXPECTED(!zend_is_long_compatible(d, lval))) {
/* Check arg_num is not (uint32_t)-1, as otherwise its called by
* zend_verify_weak_scalar_type_hint_no_sideeffect() */
if (arg_num != (uint32_t)-1) {
zend_incompatible_string_to_long_error(Z_STR_P(arg));
}
if (UNEXPECTED(EG(exception))) {
return 0;
}
}
*dest = lval;
} else {
return 0;
}
}
if (UNEXPECTED(EG(exception))) {
return 0;
}
} else if (EXPECTED(Z_TYPE_P(arg) < IS_TRUE)) {
if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("int", arg_num)) {
return 0;
}
*dest = 0;
} else if (EXPECTED(Z_TYPE_P(arg) == IS_TRUE)) {
*dest = 1;
} else {
return 0;
}
return 1;
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_long_slow(const zval *arg, zend_long *dest, uint32_t arg_num) /* {{{ */
{
if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
return 0;
}
return zend_parse_arg_long_weak(arg, dest, arg_num);
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_flf_parse_arg_long_slow(const zval *arg, zend_long *dest, uint32_t arg_num)
{
if (UNEXPECTED(ZEND_FLF_ARG_USES_STRICT_TYPES())) {
return 0;
}
return zend_parse_arg_long_weak(arg, dest, arg_num);
}
ZEND_API bool ZEND_FASTCALL zend_parse_arg_double_weak(const zval *arg, double *dest, uint32_t arg_num) /* {{{ */
{
if (EXPECTED(Z_TYPE_P(arg) == IS_LONG)) {
*dest = (double)Z_LVAL_P(arg);
} else if (EXPECTED(Z_TYPE_P(arg) == IS_STRING)) {
zend_long l;
uint8_t type;
if (UNEXPECTED((type = is_numeric_str_function(Z_STR_P(arg), &l, dest)) != IS_DOUBLE)) {
if (EXPECTED(type != 0)) {
*dest = (double)(l);
} else {
return 0;
}
}
if (UNEXPECTED(EG(exception))) {
return 0;
}
} else if (EXPECTED(Z_TYPE_P(arg) < IS_TRUE)) {
if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("float", arg_num)) {
return 0;
}
*dest = 0.0;
} else if (EXPECTED(Z_TYPE_P(arg) == IS_TRUE)) {
*dest = 1.0;
} else {
return 0;
}
return 1;
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_double_slow(const zval *arg, double *dest, uint32_t arg_num) /* {{{ */
{
if (EXPECTED(Z_TYPE_P(arg) == IS_LONG)) {
/* SSTH Exception: IS_LONG may be accepted instead as IS_DOUBLE */
*dest = (double)Z_LVAL_P(arg);
} else if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
return 0;
}
return zend_parse_arg_double_weak(arg, dest, arg_num);
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_number_slow(zval *arg, zval **dest, uint32_t arg_num) /* {{{ */
{
if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
return 0;
}
if (Z_TYPE_P(arg) == IS_STRING) {
zend_string *str = Z_STR_P(arg);
zend_long lval;
double dval;
uint8_t type = is_numeric_str_function(str, &lval, &dval);
if (type == IS_LONG) {
ZVAL_LONG(arg, lval);
} else if (type == IS_DOUBLE) {
ZVAL_DOUBLE(arg, dval);
} else {
return 0;
}
zend_string_release(str);
} else if (Z_TYPE_P(arg) < IS_TRUE) {
if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("int|float", arg_num)) {
return 0;
}
ZVAL_LONG(arg, 0);
} else if (Z_TYPE_P(arg) == IS_TRUE) {
ZVAL_LONG(arg, 1);
} else {
return 0;
}
*dest = arg;
return 1;
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_number_or_str_slow(zval *arg, zval **dest, uint32_t arg_num) /* {{{ */
{
if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
return false;
}
if (Z_TYPE_P(arg) < IS_TRUE) {
if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("string|int|float", arg_num)) {
return false;
}
ZVAL_LONG(arg, 0);
} else if (Z_TYPE_P(arg) == IS_TRUE) {
ZVAL_LONG(arg, 1);
} else if (UNEXPECTED(Z_TYPE_P(arg) == IS_OBJECT)) {
zend_object *zobj = Z_OBJ_P(arg);
zval obj;
if (zobj->handlers->cast_object(zobj, &obj, IS_STRING) == SUCCESS) {
OBJ_RELEASE(zobj);
ZVAL_COPY_VALUE(arg, &obj);
*dest = arg;
return true;
}
return false;
} else {
return false;
}
*dest = arg;
return true;
}
ZEND_API bool ZEND_FASTCALL zend_parse_arg_str_weak(zval *arg, zend_string **dest, uint32_t arg_num) /* {{{ */
{
if (EXPECTED(Z_TYPE_P(arg) < IS_STRING)) {
if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("string", arg_num)) {
return 0;
}
convert_to_string(arg);
*dest = Z_STR_P(arg);
} else if (UNEXPECTED(Z_TYPE_P(arg) == IS_OBJECT)) {
zend_object *zobj = Z_OBJ_P(arg);
zval obj;
if (zobj->handlers->cast_object(zobj, &obj, IS_STRING) == SUCCESS) {
OBJ_RELEASE(zobj);
ZVAL_COPY_VALUE(arg, &obj);
*dest = Z_STR_P(arg);
return 1;
}
return 0;
} else {
return 0;
}
return 1;
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_str_slow(zval *arg, zend_string **dest, uint32_t arg_num) /* {{{ */
{
if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
return 0;
}
return zend_parse_arg_str_weak(arg, dest, arg_num);
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_flf_parse_arg_str_slow(zval *arg, zend_string **dest, uint32_t arg_num)
{
if (UNEXPECTED(ZEND_FLF_ARG_USES_STRICT_TYPES())) {
return 0;
}
return zend_parse_arg_str_weak(arg, dest, arg_num);
}
ZEND_API bool ZEND_FASTCALL zend_parse_arg_str_or_long_slow(zval *arg, zend_string **dest_str, zend_long *dest_long, uint32_t arg_num) /* {{{ */
{
if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
return 0;
}
if (zend_parse_arg_long_weak(arg, dest_long, arg_num)) {
*dest_str = NULL;
return 1;
} else if (zend_parse_arg_str_weak(arg, dest_str, arg_num)) {
*dest_long = 0;
return 1;
} else {
return 0;
}
}
/* }}} */
static const char *zend_parse_arg_impl(zval *arg, va_list *va, const char **spec, char **error, uint32_t arg_num) /* {{{ */
{
const char *spec_walk = *spec;
char c = *spec_walk++;
bool check_null = 0;
bool separate = 0;
zval *real_arg = arg;
/* scan through modifiers */
ZVAL_DEREF(arg);
while (1) {
if (*spec_walk == '/') {
SEPARATE_ZVAL_NOREF(arg);
real_arg = arg;
separate = 1;
} else if (*spec_walk == '!') {
check_null = 1;
} else {
break;
}
spec_walk++;
}
switch (c) {
case 'l':
{
zend_long *p = va_arg(*va, zend_long *);
bool *is_null = NULL;
if (check_null) {
is_null = va_arg(*va, bool *);
}
if (!zend_parse_arg_long(arg, p, is_null, check_null, arg_num)) {
return check_null ? "?int" : "int";
}
}
break;
case 'd':
{
double *p = va_arg(*va, double *);
bool *is_null = NULL;
if (check_null) {
is_null = va_arg(*va, bool *);
}
if (!zend_parse_arg_double(arg, p, is_null, check_null, arg_num)) {
return check_null ? "?float" : "float";
}
}
break;
case 'n':
{
zval **p = va_arg(*va, zval **);
if (!zend_parse_arg_number(arg, p, check_null, arg_num)) {
return check_null ? "int|float|null" : "int|float";
}
}
break;
case 's':
{
char **p = va_arg(*va, char **);
size_t *pl = va_arg(*va, size_t *);
if (!zend_parse_arg_string(arg, p, pl, check_null, arg_num)) {
return check_null ? "?string" : "string";
}
}
break;
case 'p':
{
char **p = va_arg(*va, char **);
size_t *pl = va_arg(*va, size_t *);
if (!zend_parse_arg_path(arg, p, pl, check_null, arg_num)) {
if (Z_TYPE_P(arg) == IS_STRING) {
zend_spprintf(error, 0, "must not contain any null bytes");
return "";
} else {
return check_null ? "?string" : "string";
}
}
}
break;
case 'P':
{
zend_string **str = va_arg(*va, zend_string **);
if (!zend_parse_arg_path_str(arg, str, check_null, arg_num)) {
if (Z_TYPE_P(arg) == IS_STRING) {
zend_spprintf(error, 0, "must not contain any null bytes");
return "";
} else {
return check_null ? "?string" : "string";
}
}
}
break;
case 'S':
{
zend_string **str = va_arg(*va, zend_string **);
if (!zend_parse_arg_str(arg, str, check_null, arg_num)) {
return check_null ? "?string" : "string";
}
}
break;
case 'b':
{
bool *p = va_arg(*va, bool *);
bool *is_null = NULL;
if (check_null) {
is_null = va_arg(*va, bool *);
}
if (!zend_parse_arg_bool(arg, p, is_null, check_null, arg_num)) {
return check_null ? "?bool" : "bool";
}
}
break;
case 'r':
{
zval **p = va_arg(*va, zval **);
if (!zend_parse_arg_resource(arg, p, check_null)) {
return check_null ? "resource or null" : "resource";
}
}
break;
case 'A':
case 'a':
{
zval **p = va_arg(*va, zval **);
if (!zend_parse_arg_array(arg, p, check_null, c == 'A')) {
return check_null ? "?array" : "array";
}
}
break;
case 'H':
case 'h':
{
HashTable **p = va_arg(*va, HashTable **);
if (!zend_parse_arg_array_ht(arg, p, check_null, c == 'H', separate)) {
return check_null ? "?array" : "array";
}
}
break;
case 'o':
{
zval **p = va_arg(*va, zval **);
if (!zend_parse_arg_object(arg, p, NULL, check_null)) {
return check_null ? "?object" : "object";
}
}
break;
case 'O':
{
zval **p = va_arg(*va, zval **);
zend_class_entry *ce = va_arg(*va, zend_class_entry *);
if (!zend_parse_arg_object(arg, p, ce, check_null)) {
if (ce) {
if (check_null) {
zend_spprintf(error, 0, "must be of type ?%s, %s given", ZSTR_VAL(ce->name), zend_zval_value_name(arg));
return "";
} else {
return ZSTR_VAL(ce->name);
}
} else {
return check_null ? "?object" : "object";
}
}
}
break;
case 'C':
{
zend_class_entry *lookup, **pce = va_arg(*va, zend_class_entry **);
zend_class_entry *ce_base = *pce;
if (check_null && Z_TYPE_P(arg) == IS_NULL) {
*pce = NULL;
break;
}
if (!try_convert_to_string(arg)) {
*pce = NULL;
return ""; /* try_convert_to_string() throws an exception */
}
if ((lookup = zend_lookup_class(Z_STR_P(arg))) == NULL) {
*pce = NULL;
} else {
*pce = lookup;
}
if (ce_base) {
if ((!*pce || !instanceof_function(*pce, ce_base))) {
zend_spprintf(error, 0, "must be a class name derived from %s%s, %s given",
ZSTR_VAL(ce_base->name), check_null ? " or null" : "", Z_STRVAL_P(arg));
*pce = NULL;
return "";
}
}
if (!*pce) {
zend_spprintf(error, 0, "must be a valid class name%s, %s given",
check_null ? " or null" : "", Z_STRVAL_P(arg));
return "";
}
break;
}
break;
case 'F':
case 'f':
{
zend_fcall_info *fci = va_arg(*va, zend_fcall_info *);
zend_fcall_info_cache *fcc = va_arg(*va, zend_fcall_info_cache *);
char *is_callable_error = NULL;
if (check_null && Z_TYPE_P(arg) == IS_NULL) {
fci->size = 0;
fcc->function_handler = 0;
break;
}
if (zend_fcall_info_init(arg, 0, fci, fcc, NULL, &is_callable_error) == SUCCESS) {
ZEND_ASSERT(!is_callable_error);
if (c == 'f') {
/* Release call trampolines: The function may not get called, in which case
* the trampoline will leak. Force it to be refetched during
* zend_call_function instead. */
zend_release_fcall_info_cache(fcc);
}
break;
}
if (is_callable_error) {
zend_spprintf(error, 0, "must be a valid callback%s, %s", check_null ? " or null" : "", is_callable_error);
efree(is_callable_error);
return "";
} else {
return check_null ? "a valid callback or null" : "a valid callback";
}
}
case 'z':
{
zval **p = va_arg(*va, zval **);
zend_parse_arg_zval_deref(real_arg, p, check_null);
}
break;
case 'Z': /* replace with 'z' */
case 'L': /* replace with 'l' */
ZEND_ASSERT(0 && "ZPP modifier no longer supported");
ZEND_FALLTHROUGH;
default:
return "unknown";
}
*spec = spec_walk;
return NULL;
}
/* }}} */
static zend_result zend_parse_arg(uint32_t arg_num, zval *arg, va_list *va, const char **spec, int flags) /* {{{ */
{
const char *expected_type = NULL;
char *error = NULL;
expected_type = zend_parse_arg_impl(arg, va, spec, &error, arg_num);
if (expected_type) {
if (EG(exception)) {
return FAILURE;
}
if (!(flags & ZEND_PARSE_PARAMS_QUIET) && (*expected_type || error)) {
if (error) {
if (strcmp(error, "must not contain any null bytes") == 0) {
zend_argument_value_error(arg_num, "%s", error);
} else {
zend_argument_type_error(arg_num, "%s", error);
}
efree(error);
} else {
zend_argument_type_error(arg_num, "must be of type %s, %s given", expected_type, zend_zval_value_name(arg));
}
} else if (error) {
efree(error);
}
return FAILURE;
}
return SUCCESS;
}
/* }}} */
ZEND_API zend_result zend_parse_parameter(int flags, uint32_t arg_num, zval *arg, const char *spec, ...)
{
va_list va;
zend_result ret;
va_start(va, spec);
ret = zend_parse_arg(arg_num, arg, &va, &spec, flags);
va_end(va);
return ret;
}
static ZEND_COLD void zend_parse_parameters_debug_error(const char *msg) {
zend_function *active_function = EG(current_execute_data)->func;
const char *class_name = active_function->common.scope
? ZSTR_VAL(active_function->common.scope->name) : "";
zend_error_noreturn(E_CORE_ERROR, "%s%s%s(): %s",
class_name, class_name[0] ? "::" : "",
ZSTR_VAL(active_function->common.function_name), msg);
}
static zend_result zend_parse_va_args(uint32_t num_args, const char *type_spec, va_list *va, int flags) /* {{{ */
{
const char *spec_walk;
char c;
uint32_t i;
uint32_t min_num_args = 0;
uint32_t max_num_args = 0;
uint32_t post_varargs = 0;
zval *arg;
bool have_varargs = 0;
bool have_optional_args = 0;
zval **varargs = NULL;
uint32_t *n_varargs = NULL;
for (spec_walk = type_spec; *spec_walk; spec_walk++) {
c = *spec_walk;
switch (c) {
case 'l': case 'd':
case 's': case 'b':
case 'r': case 'a':
case 'o': case 'O':
case 'z': case 'Z':
case 'C': case 'h':
case 'f': case 'F': case 'A':
case 'H': case 'p':
case 'S': case 'P':
case 'L': case 'n':
max_num_args++;
break;
case '|':
min_num_args = max_num_args;
have_optional_args = 1;
break;
case '/':
case '!':
/* Pass */
break;
case '*':
case '+':
if (have_varargs) {
zend_parse_parameters_debug_error(
"only one varargs specifier (* or +) is permitted");
return FAILURE;
}
have_varargs = 1;
/* we expect at least one parameter in varargs */
if (c == '+') {
max_num_args++;
}
/* mark the beginning of varargs */
post_varargs = max_num_args;
if (ZEND_CALL_INFO(EG(current_execute_data)) & ZEND_CALL_HAS_EXTRA_NAMED_PARAMS) {
zend_unexpected_extra_named_error();
return FAILURE;
}
break;
default:
zend_parse_parameters_debug_error("bad type specifier while parsing parameters");
return FAILURE;
}
}
/* with no optional arguments the minimum number of arguments must be the same as the maximum */
if (!have_optional_args) {
min_num_args = max_num_args;
}
if (have_varargs) {
/* calculate how many required args are at the end of the specifier list */
post_varargs = max_num_args - post_varargs;
max_num_args = UINT32_MAX;
}
if (num_args < min_num_args || num_args > max_num_args) {
if (!(flags & ZEND_PARSE_PARAMS_QUIET)) {
zend_string *func_name = get_active_function_or_method_name();
zend_argument_count_error("%s() expects %s %d argument%s, %d given",
ZSTR_VAL(func_name),
min_num_args == max_num_args ? "exactly" : num_args < min_num_args ? "at least" : "at most",
num_args < min_num_args ? min_num_args : max_num_args,
(num_args < min_num_args ? min_num_args : max_num_args) == 1 ? "" : "s",
num_args
);
zend_string_release(func_name);
}
return FAILURE;
}
if (num_args > ZEND_CALL_NUM_ARGS(EG(current_execute_data))) {
zend_parse_parameters_debug_error("could not obtain parameters for parsing");
return FAILURE;
}
i = 0;
while (num_args-- > 0) {
if (*type_spec == '|') {
type_spec++;
}
if (*type_spec == '*' || *type_spec == '+') {
uint32_t num_varargs = num_args + 1 - post_varargs;
/* eat up the passed in storage even if it won't be filled in with varargs */
varargs = va_arg(*va, zval **);
n_varargs = va_arg(*va, uint32_t *);
type_spec++;
if (num_varargs > 0) {
*n_varargs = num_varargs;
*varargs = ZEND_CALL_ARG(EG(current_execute_data), i + 1);
/* adjust how many args we have left and restart loop */
num_args += 1 - num_varargs;
i += num_varargs;
continue;
} else {
*varargs = NULL;
*n_varargs = 0;
}
}
arg = ZEND_CALL_ARG(EG(current_execute_data), i + 1);
if (zend_parse_arg(i+1, arg, va, &type_spec, flags) == FAILURE) {
/* clean up varargs array if it was used */
if (varargs && *varargs) {
*varargs = NULL;
}
return FAILURE;
}
i++;
}
return SUCCESS;
}
/* }}} */
ZEND_API zend_result zend_parse_parameters_ex(int flags, uint32_t num_args, const char *type_spec, ...) /* {{{ */
{
va_list va;
zend_result retval;
va_start(va, type_spec);
retval = zend_parse_va_args(num_args, type_spec, &va, flags);
va_end(va);
return retval;
}
/* }}} */
ZEND_API zend_result zend_parse_parameters(uint32_t num_args, const char *type_spec, ...) /* {{{ */
{
va_list va;
zend_result retval;
int flags = 0;
va_start(va, type_spec);
retval = zend_parse_va_args(num_args, type_spec, &va, flags);
va_end(va);
return retval;
}
/* }}} */
ZEND_API zend_result zend_parse_method_parameters(uint32_t num_args, zval *this_ptr, const char *type_spec, ...) /* {{{ */
{
va_list va;
zend_result retval;
int flags = 0;
const char *p = type_spec;
zval **object;
zend_class_entry *ce;
/* Just checking this_ptr is not enough, because fcall_common_helper does not set
* Z_OBJ(EG(This)) to NULL when calling an internal function with common.scope == NULL.
* In that case EG(This) would still be the $this from the calling code and we'd take the
* wrong branch here. */
bool is_method = EG(current_execute_data)->func->common.scope != NULL;
if (!is_method || !this_ptr || Z_TYPE_P(this_ptr) != IS_OBJECT) {
va_start(va, type_spec);
retval = zend_parse_va_args(num_args, type_spec, &va, flags);
va_end(va);
} else {
p++;
va_start(va, type_spec);
object = va_arg(va, zval **);
ce = va_arg(va, zend_class_entry *);
*object = this_ptr;
if (ce && !instanceof_function(Z_OBJCE_P(this_ptr), ce)) {
zend_error_noreturn(E_CORE_ERROR, "%s::%s() must be derived from %s::%s()",
ZSTR_VAL(Z_OBJCE_P(this_ptr)->name), get_active_function_name(), ZSTR_VAL(ce->name), get_active_function_name());
}
retval = zend_parse_va_args(num_args, p, &va, flags);
va_end(va);
}
return retval;
}
/* }}} */
ZEND_API zend_result zend_parse_method_parameters_ex(int flags, uint32_t num_args, zval *this_ptr, const char *type_spec, ...) /* {{{ */
{
va_list va;
zend_result retval;
const char *p = type_spec;
zval **object;
zend_class_entry *ce;
if (!this_ptr) {
va_start(va, type_spec);
retval = zend_parse_va_args(num_args, type_spec, &va, flags);
va_end(va);
} else {
p++;
va_start(va, type_spec);
object = va_arg(va, zval **);
ce = va_arg(va, zend_class_entry *);
*object = this_ptr;
if (ce && !instanceof_function(Z_OBJCE_P(this_ptr), ce)) {
if (!(flags & ZEND_PARSE_PARAMS_QUIET)) {
zend_error_noreturn(E_CORE_ERROR, "%s::%s() must be derived from %s::%s()",
ZSTR_VAL(ce->name), get_active_function_name(), ZSTR_VAL(Z_OBJCE_P(this_ptr)->name), get_active_function_name());
}
va_end(va);
return FAILURE;
}
retval = zend_parse_va_args(num_args, p, &va, flags);
va_end(va);
}
return retval;
}
/* }}} */
/* This function should be called after the constructor has been called
* because it may call __set from the uninitialized object otherwise. */
ZEND_API void zend_merge_properties(zval *obj, HashTable *properties) /* {{{ */
{
zend_object *zobj = Z_OBJ_P(obj);
zend_object_write_property_t write_property = zobj->handlers->write_property;
zend_class_entry *old_scope = EG(fake_scope);
zend_string *key;
zval *value;
if (HT_IS_PACKED(properties)) {
return;
}
EG(fake_scope) = Z_OBJCE_P(obj);
ZEND_HASH_MAP_FOREACH_STR_KEY_VAL(properties, key, value) {
if (key) {
write_property(zobj, key, value, NULL);
}
} ZEND_HASH_FOREACH_END();
EG(fake_scope) = old_scope;
}
/* }}} */
static zend_class_mutable_data *zend_allocate_mutable_data(zend_class_entry *class_type) /* {{{ */
{
zend_class_mutable_data *mutable_data;
ZEND_ASSERT(ZEND_MAP_PTR(class_type->mutable_data) != NULL);
ZEND_ASSERT(ZEND_MAP_PTR_GET_IMM(class_type->mutable_data) == NULL);
mutable_data = zend_arena_alloc(&CG(arena), sizeof(zend_class_mutable_data));
memset(mutable_data, 0, sizeof(zend_class_mutable_data));
mutable_data->ce_flags = class_type->ce_flags;
ZEND_MAP_PTR_SET_IMM(class_type->mutable_data, mutable_data);
return mutable_data;
}
/* }}} */
ZEND_API HashTable *zend_separate_class_constants_table(zend_class_entry *class_type) /* {{{ */
{
zend_class_mutable_data *mutable_data;
HashTable *constants_table;
zend_string *key;
zend_class_constant *new_c, *c;
constants_table = zend_arena_alloc(&CG(arena), sizeof(HashTable));
zend_hash_init(constants_table, zend_hash_num_elements(&class_type->constants_table), NULL, NULL, 0);
zend_hash_extend(constants_table, zend_hash_num_elements(&class_type->constants_table), 0);
ZEND_HASH_MAP_FOREACH_STR_KEY_PTR(&class_type->constants_table, key, c) {
if (c->ce == class_type) {
if (Z_TYPE(c->value) == IS_CONSTANT_AST) {
new_c = zend_arena_alloc(&CG(arena), sizeof(zend_class_constant));
memcpy(new_c, c, sizeof(zend_class_constant));
c = new_c;
}
Z_TRY_ADDREF(c->value);
} else {
if (Z_TYPE(c->value) == IS_CONSTANT_AST) {
c = zend_hash_find_ptr(CE_CONSTANTS_TABLE(c->ce), key);
ZEND_ASSERT(c);
}
}
_zend_hash_append_ptr(constants_table, key, c);
} ZEND_HASH_FOREACH_END();
ZEND_ASSERT(ZEND_MAP_PTR(class_type->mutable_data) != NULL);
mutable_data = ZEND_MAP_PTR_GET_IMM(class_type->mutable_data);
if (!mutable_data) {
mutable_data = zend_allocate_mutable_data(class_type);
}
mutable_data->constants_table = constants_table;
return constants_table;
}
static zend_result update_property(zval *val, zend_property_info *prop_info) {
if (ZEND_TYPE_IS_SET(prop_info->type)) {
zval tmp;
ZVAL_COPY(&tmp, val);
if (UNEXPECTED(zval_update_constant_ex(&tmp, prop_info->ce) != SUCCESS)) {
zval_ptr_dtor(&tmp);
return FAILURE;
}
/* property initializers must always be evaluated with strict types */;
if (UNEXPECTED(!zend_verify_property_type(prop_info, &tmp, /* strict */ 1))) {
zval_ptr_dtor(&tmp);
return FAILURE;
}
zval_ptr_dtor(val);
ZVAL_COPY_VALUE(val, &tmp);
return SUCCESS;
}
return zval_update_constant_ex(val, prop_info->ce);
}
ZEND_API zend_result zend_update_class_constant(zend_class_constant *c, const zend_string *name, zend_class_entry *scope)
{
ZEND_ASSERT(Z_TYPE(c->value) == IS_CONSTANT_AST);
if (EXPECTED(!ZEND_TYPE_IS_SET(c->type) || ZEND_TYPE_PURE_MASK(c->type) == MAY_BE_ANY)) {
return zval_update_constant_ex(&c->value, scope);
}
zval tmp;
ZVAL_COPY(&tmp, &c->value);
zend_result result = zval_update_constant_ex(&tmp, scope);
if (result == FAILURE) {
zval_ptr_dtor(&tmp);
return FAILURE;
}
if (UNEXPECTED(!zend_verify_class_constant_type(c, name, &tmp))) {
zval_ptr_dtor(&tmp);
return FAILURE;
}
zval_ptr_dtor(&c->value);
ZVAL_COPY_VALUE(&c->value, &tmp);
return SUCCESS;
}
ZEND_API zend_result zend_update_class_constants(zend_class_entry *class_type) /* {{{ */
{
zend_class_mutable_data *mutable_data = NULL;
zval *default_properties_table = NULL;
zval *static_members_table = NULL;
zend_class_constant *c;
zval *val;
uint32_t ce_flags;
ce_flags = class_type->ce_flags;
if (ce_flags & ZEND_ACC_CONSTANTS_UPDATED) {
return SUCCESS;
}
bool uses_mutable_data = ZEND_MAP_PTR(class_type->mutable_data) != NULL;
if (uses_mutable_data) {
mutable_data = ZEND_MAP_PTR_GET_IMM(class_type->mutable_data);
if (mutable_data) {
ce_flags = mutable_data->ce_flags;
if (ce_flags & ZEND_ACC_CONSTANTS_UPDATED) {
return SUCCESS;
}
} else {
mutable_data = zend_allocate_mutable_data(class_type);
}
}
if (class_type->parent) {
if (UNEXPECTED(zend_update_class_constants(class_type->parent) != SUCCESS)) {
return FAILURE;
}
}
if (ce_flags & ZEND_ACC_HAS_AST_CONSTANTS) {
HashTable *constants_table;
if (uses_mutable_data) {
constants_table = mutable_data->constants_table;
if (!constants_table) {
constants_table = zend_separate_class_constants_table(class_type);
}
} else {
constants_table = &class_type->constants_table;
}
zend_string *name;
ZEND_HASH_MAP_FOREACH_STR_KEY_VAL(constants_table, name, val) {
c = Z_PTR_P(val);
if (Z_TYPE(c->value) == IS_CONSTANT_AST) {
if (c->ce != class_type) {
Z_PTR_P(val) = c = zend_hash_find_ptr(CE_CONSTANTS_TABLE(c->ce), name);
if (Z_TYPE(c->value) != IS_CONSTANT_AST) {
continue;
}
}
val = &c->value;
if (UNEXPECTED(zend_update_class_constant(c, name, c->ce) != SUCCESS)) {
return FAILURE;
}
}
} ZEND_HASH_FOREACH_END();
}
if (class_type->default_static_members_count) {
static_members_table = CE_STATIC_MEMBERS(class_type);
if (!static_members_table) {
zend_class_init_statics(class_type);
static_members_table = CE_STATIC_MEMBERS(class_type);
}
}
default_properties_table = class_type->default_properties_table;
if (uses_mutable_data && (ce_flags & ZEND_ACC_HAS_AST_PROPERTIES)) {
zval *src, *dst, *end;
default_properties_table = mutable_data->default_properties_table;
if (!default_properties_table) {
default_properties_table = zend_arena_alloc(&CG(arena), sizeof(zval) * class_type->default_properties_count);
src = class_type->default_properties_table;
dst = default_properties_table;
end = dst + class_type->default_properties_count;
do {
ZVAL_COPY_PROP(dst, src);
src++;
dst++;
} while (dst != end);
mutable_data->default_properties_table = default_properties_table;
}
}
if (ce_flags & (ZEND_ACC_HAS_AST_PROPERTIES|ZEND_ACC_HAS_AST_STATICS)) {
zend_property_info *prop_info;
/* Use the default properties table to also update initializers of private properties
* that have been shadowed in a child class. */
for (uint32_t i = 0; i < class_type->default_properties_count; i++) {
val = &default_properties_table[i];
prop_info = class_type->properties_info_table[i];
if (Z_TYPE_P(val) == IS_CONSTANT_AST
&& UNEXPECTED(update_property(val, prop_info) != SUCCESS)) {
return FAILURE;
}
}
if (class_type->default_static_members_count) {
ZEND_HASH_MAP_FOREACH_PTR(&class_type->properties_info, prop_info) {
if (prop_info->flags & ZEND_ACC_STATIC) {
val = static_members_table + prop_info->offset;
if (Z_TYPE_P(val) == IS_CONSTANT_AST
&& UNEXPECTED(update_property(val, prop_info) != SUCCESS)) {
return FAILURE;
}
}
} ZEND_HASH_FOREACH_END();
}
}
if (class_type->type == ZEND_USER_CLASS && class_type->ce_flags & ZEND_ACC_ENUM && class_type->enum_backing_type != IS_UNDEF) {
if (zend_enum_build_backed_enum_table(class_type) == FAILURE) {
return FAILURE;
}
}
ce_flags |= ZEND_ACC_CONSTANTS_UPDATED;
ce_flags &= ~ZEND_ACC_HAS_AST_CONSTANTS;
ce_flags &= ~ZEND_ACC_HAS_AST_PROPERTIES;
ce_flags &= ~ZEND_ACC_HAS_AST_STATICS;
if (uses_mutable_data) {
mutable_data->ce_flags = ce_flags;
} else {
class_type->ce_flags = ce_flags;
}
return SUCCESS;
}
/* }}} */
static zend_always_inline void _object_properties_init(zend_object *object, zend_class_entry *class_type) /* {{{ */
{
if (class_type->default_properties_count) {
zval *src = CE_DEFAULT_PROPERTIES_TABLE(class_type);
zval *dst = object->properties_table;
zval *end = src + class_type->default_properties_count;
if (UNEXPECTED(class_type->type == ZEND_INTERNAL_CLASS)) {
/* We don't have to account for refcounting because
* zend_declare_typed_property() disallows refcounted defaults for internal classes. */
do {
ZEND_ASSERT(!Z_REFCOUNTED_P(src));
ZVAL_COPY_VALUE_PROP(dst, src);
src++;
dst++;
} while (src != end);
} else {
do {
ZVAL_COPY_PROP(dst, src);
src++;
dst++;
} while (src != end);
}
}
}
/* }}} */
ZEND_API void object_properties_init(zend_object *object, zend_class_entry *class_type) /* {{{ */
{
object->properties = NULL;
_object_properties_init(object, class_type);
}
/* }}} */
ZEND_API void object_properties_init_ex(zend_object *object, HashTable *properties) /* {{{ */
{
object->properties = properties;
if (object->ce->default_properties_count) {
zval *prop;
zend_string *key;
zend_property_info *property_info;
ZEND_HASH_MAP_FOREACH_STR_KEY_VAL(properties, key, prop) {
property_info = zend_get_property_info(object->ce, key, 1);
if (property_info != ZEND_WRONG_PROPERTY_INFO &&
property_info &&
(property_info->flags & ZEND_ACC_STATIC) == 0) {
zval *slot = OBJ_PROP(object, property_info->offset);
if (ZEND_TYPE_IS_SET(property_info->type)) {
zval tmp;
ZVAL_COPY_VALUE(&tmp, prop);
if (UNEXPECTED(!zend_verify_property_type(property_info, &tmp, 0))) {
continue;
}
ZVAL_COPY_VALUE(slot, &tmp);
} else {
ZVAL_COPY_VALUE(slot, prop);
}
ZVAL_INDIRECT(prop, slot);
}
} ZEND_HASH_FOREACH_END();
}
}
/* }}} */
ZEND_API void object_properties_load(zend_object *object, HashTable *properties) /* {{{ */
{
zval *prop, tmp;
zend_string *key;
zend_long h;
zend_property_info *property_info;
ZEND_HASH_FOREACH_KEY_VAL(properties, h, key, prop) {
if (key) {
if (ZSTR_VAL(key)[0] == '\0') {
const char *class_name, *prop_name;
size_t prop_name_len;
if (zend_unmangle_property_name_ex(key, &class_name, &prop_name, &prop_name_len) == SUCCESS) {
zend_string *pname = zend_string_init(prop_name, prop_name_len, 0);
zend_class_entry *prev_scope = EG(fake_scope);
if (class_name && class_name[0] != '*') {
zend_string *cname = zend_string_init(class_name, strlen(class_name), 0);
EG(fake_scope) = zend_lookup_class(cname);
zend_string_release_ex(cname, 0);
}
property_info = zend_get_property_info(object->ce, pname, 1);
zend_string_release_ex(pname, 0);
EG(fake_scope) = prev_scope;
} else {
property_info = ZEND_WRONG_PROPERTY_INFO;
}
} else {
property_info = zend_get_property_info(object->ce, key, 1);
}
if (property_info != ZEND_WRONG_PROPERTY_INFO &&
property_info &&
(property_info->flags & ZEND_ACC_STATIC) == 0) {
zval *slot = OBJ_PROP(object, property_info->offset);
zval_ptr_dtor(slot);
ZVAL_COPY_VALUE(slot, prop);
zval_add_ref(slot);
if (object->properties) {
ZVAL_INDIRECT(&tmp, slot);
zend_hash_update(object->properties, key, &tmp);
}
} else {
if (UNEXPECTED(object->ce->ce_flags & ZEND_ACC_NO_DYNAMIC_PROPERTIES)) {
zend_throw_error(NULL, "Cannot create dynamic property %s::$%s",
ZSTR_VAL(object->ce->name), property_info != ZEND_WRONG_PROPERTY_INFO ? zend_get_unmangled_property_name(key): "");
return;
} else if (!(object->ce->ce_flags & ZEND_ACC_ALLOW_DYNAMIC_PROPERTIES)) {
zend_error(E_DEPRECATED, "Creation of dynamic property %s::$%s is deprecated",
ZSTR_VAL(object->ce->name), property_info != ZEND_WRONG_PROPERTY_INFO ? zend_get_unmangled_property_name(key): "");
}
prop = zend_hash_update(zend_std_get_properties_ex(object), key, prop);
zval_add_ref(prop);
}
} else {
if (UNEXPECTED(object->ce->ce_flags & ZEND_ACC_NO_DYNAMIC_PROPERTIES)) {
zend_throw_error(NULL, "Cannot create dynamic property %s::$" ZEND_LONG_FMT, ZSTR_VAL(object->ce->name), h);
return;
} else if (!(object->ce->ce_flags & ZEND_ACC_ALLOW_DYNAMIC_PROPERTIES)) {
zend_error(E_DEPRECATED, "Creation of dynamic property %s::$" ZEND_LONG_FMT " is deprecated",
ZSTR_VAL(object->ce->name), h);
}
prop = zend_hash_index_update(zend_std_get_properties_ex(object), h, prop);
zval_add_ref(prop);
}
} ZEND_HASH_FOREACH_END();
}
/* }}} */
/* This function requires 'properties' to contain all props declared in the
* class and all props being public. If only a subset is given or the class
* has protected members then you need to merge the properties separately by
* calling zend_merge_properties(). */
static zend_always_inline zend_result _object_and_properties_init(zval *arg, zend_class_entry *class_type, HashTable *properties) /* {{{ */
{
if (UNEXPECTED(class_type->ce_flags & ZEND_ACC_UNINSTANTIABLE)) {
if (class_type->ce_flags & ZEND_ACC_INTERFACE) {
zend_throw_error(NULL, "Cannot instantiate interface %s", ZSTR_VAL(class_type->name));
} else if (class_type->ce_flags & ZEND_ACC_TRAIT) {
zend_throw_error(NULL, "Cannot instantiate trait %s", ZSTR_VAL(class_type->name));
} else if (class_type->ce_flags & ZEND_ACC_ENUM) {
zend_throw_error(NULL, "Cannot instantiate enum %s", ZSTR_VAL(class_type->name));
} else {
ZEND_ASSERT(class_type->ce_flags & (ZEND_ACC_IMPLICIT_ABSTRACT_CLASS|ZEND_ACC_EXPLICIT_ABSTRACT_CLASS));
zend_throw_error(NULL, "Cannot instantiate abstract class %s", ZSTR_VAL(class_type->name));
}
ZVAL_NULL(arg);
Z_OBJ_P(arg) = NULL;
return FAILURE;
}
if (UNEXPECTED(!(class_type->ce_flags & ZEND_ACC_CONSTANTS_UPDATED))) {
if (UNEXPECTED(zend_update_class_constants(class_type) != SUCCESS)) {
ZVAL_NULL(arg);
Z_OBJ_P(arg) = NULL;
return FAILURE;
}
}
if (class_type->create_object == NULL) {
zend_object *obj = zend_objects_new(class_type);
ZVAL_OBJ(arg, obj);
if (properties) {
object_properties_init_ex(obj, properties);
} else {
_object_properties_init(obj, class_type);
}
} else {
ZVAL_OBJ(arg, class_type->create_object(class_type));
}
return SUCCESS;
}
/* }}} */
ZEND_API zend_result object_and_properties_init(zval *arg, zend_class_entry *class_type, HashTable *properties) /* {{{ */
{
return _object_and_properties_init(arg, class_type, properties);
}
/* }}} */
ZEND_API zend_result object_init_ex(zval *arg, zend_class_entry *class_type) /* {{{ */
{
return _object_and_properties_init(arg, class_type, NULL);
}
/* }}} */
ZEND_API zend_result object_init_with_constructor(zval *arg, zend_class_entry *class_type, uint32_t param_count, zval *params, HashTable *named_params) /* {{{ */
{
zend_result status = _object_and_properties_init(arg, class_type, NULL);
if (UNEXPECTED(status == FAILURE)) {
ZVAL_UNDEF(arg);
return FAILURE;
}
zend_object *obj = Z_OBJ_P(arg);
zend_function *constructor = obj->handlers->get_constructor(obj);
if (constructor == NULL) {
/* The constructor can be NULL for 2 different reasons:
* - It is not defined
* - We are not allowed to call the constructor (e.g. private, or internal opaque class)
* and an exception has been thrown
* in the former case, we are (mostly) done and the object is initialized,
* in the latter we need to destroy the object as initialization failed
*/
if (UNEXPECTED(EG(exception))) {
zval_ptr_dtor(arg);
ZVAL_UNDEF(arg);
return FAILURE;
}
/* Surprisingly, this is the only case where internal classes will allow to pass extra arguments
* However, if there are named arguments (and it is not empty),
* an Error must be thrown to be consistent with new ClassName() */
if (UNEXPECTED(named_params != NULL && zend_hash_num_elements(named_params) != 0)) {
/* Throw standard Error */
zend_string *arg_name = NULL;
zend_hash_get_current_key(named_params, &arg_name, /* num_index */ NULL);
ZEND_ASSERT(arg_name != NULL);
zend_throw_error(NULL, "Unknown named parameter $%s", ZSTR_VAL(arg_name));
/* Do not call destructor, free object, and set arg to IS_UNDEF */
zend_object_store_ctor_failed(obj);
zval_ptr_dtor(arg);
ZVAL_UNDEF(arg);
return FAILURE;
} else {
return SUCCESS;
}
}
/* A constructor should not return a value, however if an exception is thrown
* zend_call_known_function() will set the retval to IS_UNDEF */
zval retval;
zend_call_known_function(
constructor,
obj,
class_type,
&retval,
param_count,
params,
named_params
);
if (Z_TYPE(retval) == IS_UNDEF) {
/* Do not call destructor, free object, and set arg to IS_UNDEF */
zend_object_store_ctor_failed(obj);
zval_ptr_dtor(arg);
ZVAL_UNDEF(arg);
return FAILURE;
} else {
/* Unlikely, but user constructors may return any value they want */
zval_ptr_dtor(&retval);
return SUCCESS;
}
}
/* }}} */
ZEND_API void object_init(zval *arg) /* {{{ */
{
ZVAL_OBJ(arg, zend_objects_new(zend_standard_class_def));
}
/* }}} */
ZEND_API void add_assoc_long_ex(zval *arg, const char *key, size_t key_len, zend_long n) /* {{{ */
{
zval tmp;
ZVAL_LONG(&tmp, n);
zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */
ZEND_API void add_assoc_null_ex(zval *arg, const char *key, size_t key_len) /* {{{ */
{
zval tmp;
ZVAL_NULL(&tmp);
zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */
ZEND_API void add_assoc_bool_ex(zval *arg, const char *key, size_t key_len, bool b) /* {{{ */
{
zval tmp;
ZVAL_BOOL(&tmp, b);
zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */
ZEND_API void add_assoc_resource_ex(zval *arg, const char *key, size_t key_len, zend_resource *r) /* {{{ */
{
zval tmp;
ZVAL_RES(&tmp, r);
zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */
ZEND_API void add_assoc_double_ex(zval *arg, const char *key, size_t key_len, double d) /* {{{ */
{
zval tmp;
ZVAL_DOUBLE(&tmp, d);
zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */
ZEND_API void add_assoc_str_ex(zval *arg, const char *key, size_t key_len, zend_string *str) /* {{{ */
{
zval tmp;
ZVAL_STR(&tmp, str);
zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */
ZEND_API void add_assoc_string_ex(zval *arg, const char *key, size_t key_len, const char *str) /* {{{ */
{
zval tmp;
ZVAL_STRING(&tmp, str);
zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */
ZEND_API void add_assoc_stringl_ex(zval *arg, const char *key, size_t key_len, const char *str, size_t length) /* {{{ */
{
zval tmp;
ZVAL_STRINGL(&tmp, str, length);
zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */
ZEND_API void add_assoc_array_ex(zval *arg, const char *key, size_t key_len, zend_array *arr) /* {{{ */
{
zval tmp;
ZVAL_ARR(&tmp, arr);
zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */
ZEND_API void add_assoc_object_ex(zval *arg, const char *key, size_t key_len, zend_object *obj) /* {{{ */
{
zval tmp;
ZVAL_OBJ(&tmp, obj);
zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */
ZEND_API void add_assoc_reference_ex(zval *arg, const char *key, size_t key_len, zend_reference *ref) /* {{{ */
{
zval tmp;
ZVAL_REF(&tmp, ref);
zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, &tmp);
}
/* }}} */
ZEND_API void add_assoc_zval_ex(zval *arg, const char *key, size_t key_len, zval *value) /* {{{ */
{
zend_symtable_str_update(Z_ARRVAL_P(arg), key, key_len, value);
}
/* }}} */
ZEND_API void add_index_long(zval *arg, zend_ulong index, zend_long n) /* {{{ */
{
zval tmp;
ZVAL_LONG(&tmp, n);
zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */
ZEND_API void add_index_null(zval *arg, zend_ulong index) /* {{{ */
{
zval tmp;
ZVAL_NULL(&tmp);
zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */
ZEND_API void add_index_bool(zval *arg, zend_ulong index, bool b) /* {{{ */
{
zval tmp;
ZVAL_BOOL(&tmp, b);
zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */
ZEND_API void add_index_resource(zval *arg, zend_ulong index, zend_resource *r) /* {{{ */
{
zval tmp;
ZVAL_RES(&tmp, r);
zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */
ZEND_API void add_index_double(zval *arg, zend_ulong index, double d) /* {{{ */
{
zval tmp;
ZVAL_DOUBLE(&tmp, d);
zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */
ZEND_API void add_index_str(zval *arg, zend_ulong index, zend_string *str) /* {{{ */
{
zval tmp;
ZVAL_STR(&tmp, str);
zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */
ZEND_API void add_index_string(zval *arg, zend_ulong index, const char *str) /* {{{ */
{
zval tmp;
ZVAL_STRING(&tmp, str);
zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */
ZEND_API void add_index_stringl(zval *arg, zend_ulong index, const char *str, size_t length) /* {{{ */
{
zval tmp;
ZVAL_STRINGL(&tmp, str, length);
zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */
ZEND_API void add_index_array(zval *arg, zend_ulong index, zend_array *arr) /* {{{ */
{
zval tmp;
ZVAL_ARR(&tmp, arr);
zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */
ZEND_API void add_index_object(zval *arg, zend_ulong index, zend_object *obj) /* {{{ */
{
zval tmp;
ZVAL_OBJ(&tmp, obj);
zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */
ZEND_API void add_index_reference(zval *arg, zend_ulong index, zend_reference *ref) /* {{{ */
{
zval tmp;
ZVAL_REF(&tmp, ref);
zend_hash_index_update(Z_ARRVAL_P(arg), index, &tmp);
}
/* }}} */
ZEND_API zend_result add_next_index_long(zval *arg, zend_long n) /* {{{ */
{
zval tmp;
ZVAL_LONG(&tmp, n);
return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */
ZEND_API zend_result add_next_index_null(zval *arg) /* {{{ */
{
zval tmp;
ZVAL_NULL(&tmp);
return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */
ZEND_API zend_result add_next_index_bool(zval *arg, bool b) /* {{{ */
{
zval tmp;
ZVAL_BOOL(&tmp, b);
return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */
ZEND_API zend_result add_next_index_resource(zval *arg, zend_resource *r) /* {{{ */
{
zval tmp;
ZVAL_RES(&tmp, r);
return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */
ZEND_API zend_result add_next_index_double(zval *arg, double d) /* {{{ */
{
zval tmp;
ZVAL_DOUBLE(&tmp, d);
return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */
ZEND_API zend_result add_next_index_str(zval *arg, zend_string *str) /* {{{ */
{
zval tmp;
ZVAL_STR(&tmp, str);
return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */
ZEND_API zend_result add_next_index_string(zval *arg, const char *str) /* {{{ */
{
zval tmp;
ZVAL_STRING(&tmp, str);
return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */
ZEND_API zend_result add_next_index_stringl(zval *arg, const char *str, size_t length) /* {{{ */
{
zval tmp;
ZVAL_STRINGL(&tmp, str, length);
return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */
ZEND_API zend_result add_next_index_array(zval *arg, zend_array *arr) /* {{{ */
{
zval tmp;
ZVAL_ARR(&tmp, arr);
return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */
ZEND_API zend_result add_next_index_object(zval *arg, zend_object *obj) /* {{{ */
{
zval tmp;
ZVAL_OBJ(&tmp, obj);
return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */
ZEND_API zend_result add_next_index_reference(zval *arg, zend_reference *ref) /* {{{ */
{
zval tmp;
ZVAL_REF(&tmp, ref);
return zend_hash_next_index_insert(Z_ARRVAL_P(arg), &tmp) ? SUCCESS : FAILURE;
}
/* }}} */
ZEND_API zend_result array_set_zval_key(HashTable *ht, zval *key, zval *value) /* {{{ */
{
zval *result;
switch (Z_TYPE_P(key)) {
case IS_STRING:
result = zend_symtable_update(ht, Z_STR_P(key), value);
break;
case IS_NULL:
result = zend_hash_update(ht, ZSTR_EMPTY_ALLOC(), value);
break;
case IS_RESOURCE:
zend_use_resource_as_offset(key);
result = zend_hash_index_update(ht, Z_RES_HANDLE_P(key), value);
break;
case IS_FALSE:
result = zend_hash_index_update(ht, 0, value);
break;
case IS_TRUE:
result = zend_hash_index_update(ht, 1, value);
break;
case IS_LONG:
result = zend_hash_index_update(ht, Z_LVAL_P(key), value);
break;
case IS_DOUBLE:
result = zend_hash_index_update(ht, zend_dval_to_lval_safe(Z_DVAL_P(key)), value);
break;
default:
zend_illegal_container_offset(ZSTR_KNOWN(ZEND_STR_ARRAY), key, BP_VAR_W);
result = NULL;
}
if (result) {
Z_TRY_ADDREF_P(result);
return SUCCESS;
} else {
return FAILURE;
}
}
/* }}} */
ZEND_API void add_property_long_ex(zval *arg, const char *key, size_t key_len, zend_long n) /* {{{ */
{
zval tmp;
ZVAL_LONG(&tmp, n);
add_property_zval_ex(arg, key, key_len, &tmp);
}
/* }}} */
ZEND_API void add_property_bool_ex(zval *arg, const char *key, size_t key_len, zend_long b) /* {{{ */
{
zval tmp;
ZVAL_BOOL(&tmp, b);
add_property_zval_ex(arg, key, key_len, &tmp);
}
/* }}} */
ZEND_API void add_property_null_ex(zval *arg, const char *key, size_t key_len) /* {{{ */
{
zval tmp;
ZVAL_NULL(&tmp);
add_property_zval_ex(arg, key, key_len, &tmp);
}
/* }}} */
ZEND_API void add_property_resource_ex(zval *arg, const char *key, size_t key_len, zend_resource *r) /* {{{ */
{
zval tmp;
ZVAL_RES(&tmp, r);
add_property_zval_ex(arg, key, key_len, &tmp);
zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
}
/* }}} */
ZEND_API void add_property_double_ex(zval *arg, const char *key, size_t key_len, double d) /* {{{ */
{
zval tmp;
ZVAL_DOUBLE(&tmp, d);
add_property_zval_ex(arg, key, key_len, &tmp);
}
/* }}} */
ZEND_API void add_property_str_ex(zval *arg, const char *key, size_t key_len, zend_string *str) /* {{{ */
{
zval tmp;
ZVAL_STR(&tmp, str);
add_property_zval_ex(arg, key, key_len, &tmp);
zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
}
/* }}} */
ZEND_API void add_property_string_ex(zval *arg, const char *key, size_t key_len, const char *str) /* {{{ */
{
zval tmp;
ZVAL_STRING(&tmp, str);
add_property_zval_ex(arg, key, key_len, &tmp);
zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
}
/* }}} */
ZEND_API void add_property_stringl_ex(zval *arg, const char *key, size_t key_len, const char *str, size_t length) /* {{{ */
{
zval tmp;
ZVAL_STRINGL(&tmp, str, length);
add_property_zval_ex(arg, key, key_len, &tmp);
zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
}
/* }}} */
ZEND_API void add_property_array_ex(zval *arg, const char *key, size_t key_len, zend_array *arr) /* {{{ */
{
zval tmp;
ZVAL_ARR(&tmp, arr);
add_property_zval_ex(arg, key, key_len, &tmp);
zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
}
/* }}} */
ZEND_API void add_property_object_ex(zval *arg, const char *key, size_t key_len, zend_object *obj) /* {{{ */
{
zval tmp;
ZVAL_OBJ(&tmp, obj);
add_property_zval_ex(arg, key, key_len, &tmp);
zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
}
/* }}} */
ZEND_API void add_property_reference_ex(zval *arg, const char *key, size_t key_len, zend_reference *ref) /* {{{ */
{
zval tmp;
ZVAL_REF(&tmp, ref);
add_property_zval_ex(arg, key, key_len, &tmp);
zval_ptr_dtor(&tmp); /* write_property will add 1 to refcount */
}
/* }}} */
ZEND_API void add_property_zval_ex(zval *arg, const char *key, size_t key_len, zval *value) /* {{{ */
{
zend_string *str;
str = zend_string_init(key, key_len, 0);
Z_OBJ_HANDLER_P(arg, write_property)(Z_OBJ_P(arg), str, value, NULL);
zend_string_release_ex(str, 0);
}
/* }}} */
ZEND_API zend_result zend_startup_module_ex(zend_module_entry *module) /* {{{ */
{
size_t name_len;
zend_string *lcname;
if (module->module_started) {
return SUCCESS;
}
module->module_started = 1;
/* Check module dependencies */
if (module->deps) {
const zend_module_dep *dep = module->deps;
while (dep->name) {
if (dep->type == MODULE_DEP_REQUIRED) {
zend_module_entry *req_mod;
name_len = strlen(dep->name);
lcname = zend_string_alloc(name_len, 0);
zend_str_tolower_copy(ZSTR_VAL(lcname), dep->name, name_len);
if ((req_mod = zend_hash_find_ptr(&module_registry, lcname)) == NULL || !req_mod->module_started) {
zend_string_efree(lcname);
/* TODO: Check version relationship */
zend_error(E_CORE_WARNING, "Cannot load module \"%s\" because required module \"%s\" is not loaded", module->name, dep->name);
module->module_started = 0;
return FAILURE;
}
zend_string_efree(lcname);
}
++dep;
}
}
/* Initialize module globals */
if (module->globals_size) {
#ifdef ZTS
ts_allocate_id(module->globals_id_ptr, module->globals_size, (ts_allocate_ctor) module->globals_ctor, (ts_allocate_dtor) module->globals_dtor);
#else
if (module->globals_ctor) {
module->globals_ctor(module->globals_ptr);
}
#endif
}
if (module->module_startup_func) {
EG(current_module) = module;
if (module->module_startup_func(module->type, module->module_number)==FAILURE) {
zend_error_noreturn(E_CORE_ERROR,"Unable to start %s module", module->name);
EG(current_module) = NULL;
return FAILURE;
}
EG(current_module) = NULL;
}
return SUCCESS;
}
/* }}} */
static int zend_startup_module_zval(zval *zv) /* {{{ */
{
zend_module_entry *module = Z_PTR_P(zv);
return (zend_startup_module_ex(module) == SUCCESS) ? ZEND_HASH_APPLY_KEEP : ZEND_HASH_APPLY_REMOVE;
}
/* }}} */
static void zend_sort_modules(void *base, size_t count, size_t siz, compare_func_t compare, swap_func_t swp) /* {{{ */
{
Bucket *b1 = base;
Bucket *b2;
Bucket *end = b1 + count;
Bucket tmp;
zend_module_entry *m, *r;
while (b1 < end) {
try_again:
m = (zend_module_entry*)Z_PTR(b1->val);
if (!m->module_started && m->deps) {
const zend_module_dep *dep = m->deps;
while (dep->name) {
if (dep->type == MODULE_DEP_REQUIRED || dep->type == MODULE_DEP_OPTIONAL) {
b2 = b1 + 1;
while (b2 < end) {
r = (zend_module_entry*)Z_PTR(b2->val);
if (strcasecmp(dep->name, r->name) == 0) {
tmp = *b1;
*b1 = *b2;
*b2 = tmp;
goto try_again;
}
b2++;
}
}
dep++;
}
}
b1++;
}
}
/* }}} */
ZEND_API void zend_collect_module_handlers(void) /* {{{ */
{
zend_module_entry *module;
int startup_count = 0;
int shutdown_count = 0;
int post_deactivate_count = 0;
int dl_loaded_count = 0;
zend_class_entry *ce;
int class_count = 0;
/* Collect extensions with request startup/shutdown handlers */
ZEND_HASH_MAP_FOREACH_PTR(&module_registry, module) {
if (module->request_startup_func) {
startup_count++;
}
if (module->request_shutdown_func) {
shutdown_count++;
}
if (module->post_deactivate_func) {
post_deactivate_count++;
}
if (module->handle) {
dl_loaded_count++;
}
} ZEND_HASH_FOREACH_END();
module_request_startup_handlers = (zend_module_entry**)realloc(
module_request_startup_handlers,
sizeof(zend_module_entry*) *
(startup_count + 1 +
shutdown_count + 1 +
post_deactivate_count + 1));
module_request_startup_handlers[startup_count] = NULL;
module_request_shutdown_handlers = module_request_startup_handlers + startup_count + 1;
module_request_shutdown_handlers[shutdown_count] = NULL;
module_post_deactivate_handlers = module_request_shutdown_handlers + shutdown_count + 1;
module_post_deactivate_handlers[post_deactivate_count] = NULL;
/* Cannot reuse module_request_startup_handlers because it is freed in zend_destroy_modules, which happens before zend_unload_modules. */
modules_dl_loaded = realloc(modules_dl_loaded, sizeof(zend_module_entry*) * (dl_loaded_count + 1));
modules_dl_loaded[dl_loaded_count] = NULL;
startup_count = 0;
ZEND_HASH_MAP_FOREACH_PTR(&module_registry, module) {
if (module->request_startup_func) {
module_request_startup_handlers[startup_count++] = module;
}
if (module->request_shutdown_func) {
module_request_shutdown_handlers[--shutdown_count] = module;
}
if (module->post_deactivate_func) {
module_post_deactivate_handlers[--post_deactivate_count] = module;
}
if (module->handle) {
modules_dl_loaded[--dl_loaded_count] = module;
}
} ZEND_HASH_FOREACH_END();
/* Collect internal classes with static members */
ZEND_HASH_MAP_FOREACH_PTR(CG(class_table), ce) {
if (ce->type == ZEND_INTERNAL_CLASS &&
ce->default_static_members_count > 0) {
class_count++;
}
} ZEND_HASH_FOREACH_END();
class_cleanup_handlers = (zend_class_entry**)realloc(
class_cleanup_handlers,
sizeof(zend_class_entry*) *
(class_count + 1));
class_cleanup_handlers[class_count] = NULL;
if (class_count) {
ZEND_HASH_MAP_FOREACH_PTR(CG(class_table), ce) {
if (ce->type == ZEND_INTERNAL_CLASS &&
ce->default_static_members_count > 0) {
class_cleanup_handlers[--class_count] = ce;
}
} ZEND_HASH_FOREACH_END();
}
}
/* }}} */
ZEND_API void zend_startup_modules(void) /* {{{ */
{
zend_hash_sort_ex(&module_registry, zend_sort_modules, NULL, 0);
zend_hash_apply(&module_registry, zend_startup_module_zval);
}
/* }}} */
ZEND_API void zend_destroy_modules(void) /* {{{ */
{
free(class_cleanup_handlers);
class_cleanup_handlers = NULL;
free(module_request_startup_handlers);
module_request_startup_handlers = NULL;
zend_hash_graceful_reverse_destroy(&module_registry);
}
/* }}} */
ZEND_API zend_module_entry* zend_register_module_ex(zend_module_entry *module, int module_type) /* {{{ */
{
size_t name_len;
zend_string *lcname;
zend_module_entry *module_ptr;
if (!module) {
return NULL;
}
#if 0
zend_printf("%s: Registering module %d\n", module->name, module->module_number);
#endif
/* Check module dependencies */
if (module->deps) {
const zend_module_dep *dep = module->deps;
while (dep->name) {
if (dep->type == MODULE_DEP_CONFLICTS) {
name_len = strlen(dep->name);
lcname = zend_string_alloc(name_len, 0);
zend_str_tolower_copy(ZSTR_VAL(lcname), dep->name, name_len);
if (zend_hash_exists(&module_registry, lcname) || zend_get_extension(dep->name)) {
zend_string_efree(lcname);
/* TODO: Check version relationship */
zend_error(E_CORE_WARNING, "Cannot load module \"%s\" because conflicting module \"%s\" is already loaded", module->name, dep->name);
return NULL;
}
zend_string_efree(lcname);
}
++dep;
}
}
name_len = strlen(module->name);
lcname = zend_string_alloc(name_len, module_type == MODULE_PERSISTENT);
zend_str_tolower_copy(ZSTR_VAL(lcname), module->name, name_len);
int module_number = zend_next_free_module();
lcname = zend_new_interned_string(lcname);
if ((module_ptr = zend_hash_add_ptr(&module_registry, lcname, module)) == NULL) {
zend_error(E_CORE_WARNING, "Module \"%s\" is already loaded", module->name);
zend_string_release(lcname);
return NULL;
}
module = module_ptr;
EG(current_module) = module;
module->module_number = module_number;
module->type = module_type;
if (module->functions && zend_register_functions(NULL, module->functions, NULL, module_type)==FAILURE) {
zend_hash_del(&module_registry, lcname);
zend_string_release(lcname);
EG(current_module) = NULL;
zend_error(E_CORE_WARNING,"%s: Unable to register functions, unable to load", module->name);
return NULL;
}
EG(current_module) = NULL;
zend_string_release(lcname);
return module;
}
/* }}} */
ZEND_API zend_module_entry* zend_register_internal_module(zend_module_entry *module) /* {{{ */
{
return zend_register_module_ex(module, MODULE_PERSISTENT);
}
/* }}} */
static void zend_check_magic_method_args(
uint32_t num_args, const zend_class_entry *ce, const zend_function *fptr, int error_type)
{
if (fptr->common.num_args != num_args) {
if (num_args == 0) {
zend_error(error_type, "Method %s::%s() cannot take arguments",
ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
} else if (num_args == 1) {
zend_error(error_type, "Method %s::%s() must take exactly 1 argument",
ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
} else {
zend_error(error_type, "Method %s::%s() must take exactly %" PRIu32 " arguments",
ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name), num_args);
}
return;
}
for (uint32_t i = 0; i < num_args; i++) {
if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, i + 1)) {
zend_error(error_type, "Method %s::%s() cannot take arguments by reference",
ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
return;
}
}
}
static void zend_check_magic_method_arg_type(uint32_t arg_num, const zend_class_entry *ce, const zend_function *fptr, int error_type, int arg_type)
{
if (
ZEND_TYPE_IS_SET(fptr->common.arg_info[arg_num].type)
&& !(ZEND_TYPE_FULL_MASK(fptr->common.arg_info[arg_num].type) & arg_type)
) {
zend_error(error_type, "%s::%s(): Parameter #%d ($%s) must be of type %s when declared",
ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name),
arg_num + 1, ZSTR_VAL(fptr->common.arg_info[arg_num].name),
ZSTR_VAL(zend_type_to_string((zend_type) ZEND_TYPE_INIT_MASK(arg_type))));
}
}
static void zend_check_magic_method_return_type(const zend_class_entry *ce, const zend_function *fptr, int error_type, int return_type)
{
if (!(fptr->common.fn_flags & ZEND_ACC_HAS_RETURN_TYPE)) {
/* For backwards compatibility reasons, do not enforce the return type if it is not set. */
return;
}
if (ZEND_TYPE_PURE_MASK(fptr->common.arg_info[-1].type) & MAY_BE_NEVER) {
/* It is always legal to specify the never type. */
return;
}
bool is_complex_type = ZEND_TYPE_IS_COMPLEX(fptr->common.arg_info[-1].type);
uint32_t extra_types = ZEND_TYPE_PURE_MASK(fptr->common.arg_info[-1].type) & ~return_type;
if (extra_types & MAY_BE_STATIC) {
extra_types &= ~MAY_BE_STATIC;
is_complex_type = true;
}
if (extra_types || (is_complex_type && return_type != MAY_BE_OBJECT)) {
zend_error(error_type, "%s::%s(): Return type must be %s when declared",
ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name),
ZSTR_VAL(zend_type_to_string((zend_type) ZEND_TYPE_INIT_MASK(return_type))));
}
}
static void zend_check_magic_method_non_static(
const zend_class_entry *ce, const zend_function *fptr, int error_type)
{
if (fptr->common.fn_flags & ZEND_ACC_STATIC) {
zend_error(error_type, "Method %s::%s() cannot be static",
ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
}
}
static void zend_check_magic_method_static(
const zend_class_entry *ce, const zend_function *fptr, int error_type)
{
if (!(fptr->common.fn_flags & ZEND_ACC_STATIC)) {
zend_error(error_type, "Method %s::%s() must be static",
ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
}
}
static void zend_check_magic_method_public(
const zend_class_entry *ce, const zend_function *fptr, int error_type)
{
// TODO: Remove this warning after adding proper visibility handling.
if (!(fptr->common.fn_flags & ZEND_ACC_PUBLIC)) {
zend_error(E_WARNING, "The magic method %s::%s() must have public visibility",
ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
}
}
static void zend_check_magic_method_no_return_type(
const zend_class_entry *ce, const zend_function *fptr, int error_type)
{
if (fptr->common.fn_flags & ZEND_ACC_HAS_RETURN_TYPE) {
zend_error_noreturn(error_type, "Method %s::%s() cannot declare a return type",
ZSTR_VAL(ce->name), ZSTR_VAL(fptr->common.function_name));
}
}
ZEND_API void zend_check_magic_method_implementation(const zend_class_entry *ce, const zend_function *fptr, zend_string *lcname, int error_type) /* {{{ */
{
if (ZSTR_VAL(lcname)[0] != '_'
|| ZSTR_VAL(lcname)[1] != '_') {
return;
}
if (zend_string_equals_literal(lcname, ZEND_CONSTRUCTOR_FUNC_NAME)) {
zend_check_magic_method_non_static(ce, fptr, error_type);
zend_check_magic_method_no_return_type(ce, fptr, error_type);
} else if (zend_string_equals_literal(lcname, ZEND_DESTRUCTOR_FUNC_NAME)) {
zend_check_magic_method_args(0, ce, fptr, error_type);
zend_check_magic_method_non_static(ce, fptr, error_type);
zend_check_magic_method_no_return_type(ce, fptr, error_type);
} else if (zend_string_equals_literal(lcname, ZEND_CLONE_FUNC_NAME)) {
zend_check_magic_method_args(0, ce, fptr, error_type);
zend_check_magic_method_non_static(ce, fptr, error_type);
zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_VOID);
} else if (zend_string_equals_literal(lcname, ZEND_GET_FUNC_NAME)) {
zend_check_magic_method_args(1, ce, fptr, error_type);
zend_check_magic_method_non_static(ce, fptr, error_type);
zend_check_magic_method_public(ce, fptr, error_type);
zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
} else if (zend_string_equals_literal(lcname, ZEND_SET_FUNC_NAME)) {
zend_check_magic_method_args(2, ce, fptr, error_type);
zend_check_magic_method_non_static(ce, fptr, error_type);
zend_check_magic_method_public(ce, fptr, error_type);
zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_VOID);
} else if (zend_string_equals_literal(lcname, ZEND_UNSET_FUNC_NAME)) {
zend_check_magic_method_args(1, ce, fptr, error_type);
zend_check_magic_method_non_static(ce, fptr, error_type);
zend_check_magic_method_public(ce, fptr, error_type);
zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_VOID);
} else if (zend_string_equals_literal(lcname, ZEND_ISSET_FUNC_NAME)) {
zend_check_magic_method_args(1, ce, fptr, error_type);
zend_check_magic_method_non_static(ce, fptr, error_type);
zend_check_magic_method_public(ce, fptr, error_type);
zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_BOOL);
} else if (zend_string_equals_literal(lcname, ZEND_CALL_FUNC_NAME)) {
zend_check_magic_method_args(2, ce, fptr, error_type);
zend_check_magic_method_non_static(ce, fptr, error_type);
zend_check_magic_method_public(ce, fptr, error_type);
zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
zend_check_magic_method_arg_type(1, ce, fptr, error_type, MAY_BE_ARRAY);
} else if (zend_string_equals_literal(lcname, ZEND_CALLSTATIC_FUNC_NAME)) {
zend_check_magic_method_args(2, ce, fptr, error_type);
zend_check_magic_method_static(ce, fptr, error_type);
zend_check_magic_method_public(ce, fptr, error_type);
zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_STRING);
zend_check_magic_method_arg_type(1, ce, fptr, error_type, MAY_BE_ARRAY);
} else if (zend_string_equals_literal(lcname, ZEND_TOSTRING_FUNC_NAME)) {
zend_check_magic_method_args(0, ce, fptr, error_type);
zend_check_magic_method_non_static(ce, fptr, error_type);
zend_check_magic_method_public(ce, fptr, error_type);
zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_STRING);
} else if (zend_string_equals_literal(lcname, ZEND_DEBUGINFO_FUNC_NAME)) {
zend_check_magic_method_args(0, ce, fptr, error_type);
zend_check_magic_method_non_static(ce, fptr, error_type);
zend_check_magic_method_public(ce, fptr, error_type);
zend_check_magic_method_return_type(ce, fptr, error_type, (MAY_BE_ARRAY | MAY_BE_NULL));
} else if (zend_string_equals_literal(lcname, "__serialize")) {
zend_check_magic_method_args(0, ce, fptr, error_type);
zend_check_magic_method_non_static(ce, fptr, error_type);
zend_check_magic_method_public(ce, fptr, error_type);
zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_ARRAY);
} else if (zend_string_equals_literal(lcname, "__unserialize")) {
zend_check_magic_method_args(1, ce, fptr, error_type);
zend_check_magic_method_non_static(ce, fptr, error_type);
zend_check_magic_method_public(ce, fptr, error_type);
zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_ARRAY);
zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_VOID);
} else if (zend_string_equals_literal(lcname, "__set_state")) {
zend_check_magic_method_args(1, ce, fptr, error_type);
zend_check_magic_method_static(ce, fptr, error_type);
zend_check_magic_method_public(ce, fptr, error_type);
zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_ARRAY);
zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_OBJECT);
} else if (zend_string_equals(lcname, ZSTR_KNOWN(ZEND_STR_MAGIC_INVOKE))) {
zend_check_magic_method_non_static(ce, fptr, error_type);
zend_check_magic_method_public(ce, fptr, error_type);
} else if (zend_string_equals(lcname, ZSTR_KNOWN(ZEND_STR_SLEEP))) {
zend_check_magic_method_args(0, ce, fptr, error_type);
zend_check_magic_method_non_static(ce, fptr, error_type);
zend_check_magic_method_public(ce, fptr, error_type);
zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_ARRAY);
} else if (zend_string_equals(lcname, ZSTR_KNOWN(ZEND_STR_WAKEUP))) {
zend_check_magic_method_args(0, ce, fptr, error_type);
zend_check_magic_method_non_static(ce, fptr, error_type);
zend_check_magic_method_public(ce, fptr, error_type);
zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_VOID);
}
}
/* }}} */
ZEND_API void zend_add_magic_method(zend_class_entry *ce, zend_function *fptr, zend_string *lcname)
{
if (ZSTR_VAL(lcname)[0] != '_' || ZSTR_VAL(lcname)[1] != '_') {
/* pass */
} else if (zend_string_equals_literal(lcname, ZEND_CLONE_FUNC_NAME)) {
ce->clone = fptr;
} else if (zend_string_equals_literal(lcname, ZEND_CONSTRUCTOR_FUNC_NAME)) {
ce->constructor = fptr;
ce->constructor->common.fn_flags |= ZEND_ACC_CTOR;
} else if (zend_string_equals_literal(lcname, ZEND_DESTRUCTOR_FUNC_NAME)) {
ce->destructor = fptr;
} else if (zend_string_equals_literal(lcname, ZEND_GET_FUNC_NAME)) {
ce->__get = fptr;
ce->ce_flags |= ZEND_ACC_USE_GUARDS;
} else if (zend_string_equals_literal(lcname, ZEND_SET_FUNC_NAME)) {
ce->__set = fptr;
ce->ce_flags |= ZEND_ACC_USE_GUARDS;
} else if (zend_string_equals_literal(lcname, ZEND_CALL_FUNC_NAME)) {
ce->__call = fptr;
} else if (zend_string_equals_literal(lcname, ZEND_UNSET_FUNC_NAME)) {
ce->__unset = fptr;
ce->ce_flags |= ZEND_ACC_USE_GUARDS;
} else if (zend_string_equals_literal(lcname, ZEND_ISSET_FUNC_NAME)) {
ce->__isset = fptr;
ce->ce_flags |= ZEND_ACC_USE_GUARDS;
} else if (zend_string_equals_literal(lcname, ZEND_CALLSTATIC_FUNC_NAME)) {
ce->__callstatic = fptr;
} else if (zend_string_equals_literal(lcname, ZEND_TOSTRING_FUNC_NAME)) {
ce->__tostring = fptr;
} else if (zend_string_equals_literal(lcname, ZEND_DEBUGINFO_FUNC_NAME)) {
ce->__debugInfo = fptr;
ce->ce_flags |= ZEND_ACC_USE_GUARDS;
} else if (zend_string_equals_literal(lcname, "__serialize")) {
ce->__serialize = fptr;
} else if (zend_string_equals_literal(lcname, "__unserialize")) {
ce->__unserialize = fptr;
}
}
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arg_info_toString, 0, 0, IS_STRING, 0)
ZEND_END_ARG_INFO()
static zend_always_inline void zend_normalize_internal_type(zend_type *type) {
ZEND_ASSERT(!ZEND_TYPE_HAS_LITERAL_NAME(*type));
if (ZEND_TYPE_PURE_MASK(*type) != MAY_BE_ANY) {
ZEND_ASSERT(!ZEND_TYPE_CONTAINS_CODE(*type, IS_RESOURCE) && "resource is not allowed in a zend_type");
}
zend_type *current;
ZEND_TYPE_FOREACH(*type, current) {
if (ZEND_TYPE_HAS_NAME(*current)) {
zend_string *name = zend_new_interned_string(ZEND_TYPE_NAME(*current));
zend_alloc_ce_cache(name);
ZEND_TYPE_SET_PTR(*current, name);
} else if (ZEND_TYPE_HAS_LIST(*current)) {
zend_type *inner;
ZEND_TYPE_FOREACH(*current, inner) {
ZEND_ASSERT(!ZEND_TYPE_HAS_LITERAL_NAME(*inner) && !ZEND_TYPE_HAS_LIST(*inner));
if (ZEND_TYPE_HAS_NAME(*inner)) {
zend_string *name = zend_new_interned_string(ZEND_TYPE_NAME(*inner));
zend_alloc_ce_cache(name);
ZEND_TYPE_SET_PTR(*inner, name);
}
} ZEND_TYPE_FOREACH_END();
}
} ZEND_TYPE_FOREACH_END();
}
/* registers all functions in *library_functions in the function hash */
ZEND_API zend_result zend_register_functions(zend_class_entry *scope, const zend_function_entry *functions, HashTable *function_table, int type) /* {{{ */
{
const zend_function_entry *ptr = functions;
zend_function function;
zend_internal_function *reg_function, *internal_function = (zend_internal_function *)&function;
int count=0, unload=0;
HashTable *target_function_table = function_table;
int error_type;
zend_string *lowercase_name;
size_t fname_len;
if (type==MODULE_PERSISTENT) {
error_type = E_CORE_WARNING;
} else {
error_type = E_WARNING;
}
if (!target_function_table) {
target_function_table = CG(function_table);
}
internal_function->type = ZEND_INTERNAL_FUNCTION;
internal_function->module = EG(current_module);
internal_function->T = 0;
memset(internal_function->reserved, 0, ZEND_MAX_RESERVED_RESOURCES * sizeof(void*));
while (ptr->fname) {
fname_len = strlen(ptr->fname);
internal_function->handler = ptr->handler;
internal_function->doc_comment = ptr->doc_comment ? zend_string_init_interned(ptr->doc_comment, strlen(ptr->doc_comment), 1) : NULL;
internal_function->function_name = zend_string_init_interned(ptr->fname, fname_len, 1);
internal_function->scope = scope;
internal_function->prototype = NULL;
internal_function->prop_info = NULL;
internal_function->attributes = NULL;
internal_function->frameless_function_infos = ptr->frameless_function_infos;
if (EG(active)) { // at run-time: this ought to only happen if registered with dl() or somehow temporarily at runtime
ZEND_MAP_PTR_INIT(internal_function->run_time_cache, zend_arena_calloc(&CG(arena), 1, zend_internal_run_time_cache_reserved_size()));
} else {
#ifdef ZTS
ZEND_MAP_PTR_NEW_STATIC(internal_function->run_time_cache);
#else
ZEND_MAP_PTR_INIT(internal_function->run_time_cache, NULL);
#endif
}
if (ptr->flags) {
if (!(ptr->flags & ZEND_ACC_PPP_MASK)) {
if (ptr->flags != ZEND_ACC_DEPRECATED && scope) {
zend_error(error_type, "Invalid access level for %s::%s() - access must be exactly one of public, protected or private", ZSTR_VAL(scope->name), ptr->fname);
}
internal_function->fn_flags = ZEND_ACC_PUBLIC | ptr->flags;
} else {
internal_function->fn_flags = ptr->flags;
}
} else {
internal_function->fn_flags = ZEND_ACC_PUBLIC;
}
if (ptr->arg_info) {
zend_internal_function_info *info = (zend_internal_function_info*)ptr->arg_info;
internal_function->arg_info = (zend_internal_arg_info*)ptr->arg_info+1;
internal_function->num_args = ptr->num_args;
/* Currently you cannot denote that the function can accept less arguments than num_args */
if (info->required_num_args == (uintptr_t)-1) {
internal_function->required_num_args = ptr->num_args;
} else {
internal_function->required_num_args = info->required_num_args;
}
if (ZEND_ARG_SEND_MODE(info)) {
internal_function->fn_flags |= ZEND_ACC_RETURN_REFERENCE;
}
if (ZEND_ARG_IS_VARIADIC(&ptr->arg_info[ptr->num_args])) {
internal_function->fn_flags |= ZEND_ACC_VARIADIC;
/* Don't count the variadic argument */
internal_function->num_args--;
}
if (ZEND_TYPE_IS_SET(info->type)) {
if (ZEND_TYPE_HAS_NAME(info->type)) {
const char *type_name = ZEND_TYPE_LITERAL_NAME(info->type);
if (!scope && (!strcasecmp(type_name, "self") || !strcasecmp(type_name, "parent"))) {
zend_error_noreturn(E_CORE_ERROR, "Cannot declare a return type of %s outside of a class scope", type_name);
}
}
internal_function->fn_flags |= ZEND_ACC_HAS_RETURN_TYPE;
}
} else {
zend_error(E_CORE_WARNING, "Missing arginfo for %s%s%s()",
scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname);
internal_function->arg_info = NULL;
internal_function->num_args = 0;
internal_function->required_num_args = 0;
}
/* If not specified, add __toString() return type for compatibility with Stringable
* interface. */
if (scope && zend_string_equals_literal_ci(internal_function->function_name, "__tostring") &&
!(internal_function->fn_flags & ZEND_ACC_HAS_RETURN_TYPE)) {
zend_error(E_CORE_WARNING, "%s::__toString() implemented without string return type",
ZSTR_VAL(scope->name));
internal_function->arg_info = (zend_internal_arg_info *) arg_info_toString + 1;
internal_function->fn_flags |= ZEND_ACC_HAS_RETURN_TYPE;
internal_function->num_args = internal_function->required_num_args = 0;
}
zend_set_function_arg_flags((zend_function*)internal_function);
if (ptr->flags & ZEND_ACC_ABSTRACT) {
if (scope) {
/* This is a class that must be abstract itself. Here we set the check info. */
scope->ce_flags |= ZEND_ACC_IMPLICIT_ABSTRACT_CLASS;
if (!(scope->ce_flags & ZEND_ACC_INTERFACE)) {
/* Since the class is not an interface it needs to be declared as a abstract class. */
/* Since here we are handling internal functions only we can add the keyword flag. */
/* This time we set the flag for the keyword 'abstract'. */
scope->ce_flags |= ZEND_ACC_EXPLICIT_ABSTRACT_CLASS;
}
}
if ((ptr->flags & ZEND_ACC_STATIC) && (!scope || !(scope->ce_flags & ZEND_ACC_INTERFACE))) {
zend_error(error_type, "Static function %s%s%s() cannot be abstract", scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname);
}
} else {
if (scope && (scope->ce_flags & ZEND_ACC_INTERFACE)) {
zend_error(error_type, "Interface %s cannot contain non abstract method %s()", ZSTR_VAL(scope->name), ptr->fname);
return FAILURE;
}
if (!internal_function->handler) {
zend_error(error_type, "Method %s%s%s() cannot be a NULL function", scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname);
zend_unregister_functions(functions, count, target_function_table);
return FAILURE;
}
}
lowercase_name = zend_string_tolower_ex(internal_function->function_name, type == MODULE_PERSISTENT);
lowercase_name = zend_new_interned_string(lowercase_name);
reg_function = malloc(sizeof(zend_internal_function));
memcpy(reg_function, &function, sizeof(zend_internal_function));
if (zend_hash_add_ptr(target_function_table, lowercase_name, reg_function) == NULL) {
unload=1;
free(reg_function);
zend_string_release(lowercase_name);
break;
}
if (reg_function->frameless_function_infos) {
const zend_frameless_function_info *flf_info = reg_function->frameless_function_infos;
while (flf_info->handler) {
if (zend_flf_count == zend_flf_capacity) {
if (!zend_flf_capacity) {
zend_flf_capacity = 8;
} else {
zend_flf_capacity *= 2;
}
/* +1 for NULL terminator */
zend_flf_handlers = realloc(zend_flf_handlers, (zend_flf_capacity + 1) * sizeof(void *));
zend_flf_functions = realloc(zend_flf_functions, (zend_flf_capacity + 1) * sizeof(zend_function *));
}
zend_flf_handlers[zend_flf_count] = flf_info->handler;
zend_flf_functions[zend_flf_count] = (zend_function *)reg_function;
zend_flf_count++;
flf_info++;
}
zend_flf_handlers[zend_flf_count] = NULL;
zend_flf_functions[zend_flf_count] = NULL;
}
/* Get parameter count including variadic parameter. */
uint32_t num_args = reg_function->num_args;
if (reg_function->fn_flags & ZEND_ACC_VARIADIC) {
num_args++;
}
/* If types of arguments have to be checked */
if (reg_function->arg_info && num_args) {
uint32_t i;
for (i = 0; i < num_args; i++) {
zend_internal_arg_info *arg_info = &reg_function->arg_info[i];
ZEND_ASSERT(arg_info->name && "Parameter must have a name");
if (ZEND_TYPE_IS_SET(arg_info->type)) {
reg_function->fn_flags |= ZEND_ACC_HAS_TYPE_HINTS;
}
#if ZEND_DEBUG
for (uint32_t j = 0; j < i; j++) {
if (!strcmp(arg_info->name, reg_function->arg_info[j].name)) {
zend_error_noreturn(E_CORE_ERROR,
"Duplicate parameter name $%s for function %s%s%s()", arg_info->name,
scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname);
}
}
#endif
}
}
/* Rebuild arginfos if parameter/property types and/or a return type are used */
if (reg_function->arg_info &&
(reg_function->fn_flags & (ZEND_ACC_HAS_RETURN_TYPE|ZEND_ACC_HAS_TYPE_HINTS))) {
/* convert "const char*" class type names into "zend_string*" */
uint32_t i;
zend_internal_arg_info *arg_info = reg_function->arg_info - 1;
zend_internal_arg_info *new_arg_info;
/* Treat return type as an extra argument */
num_args++;
new_arg_info = malloc(sizeof(zend_internal_arg_info) * num_args);
memcpy(new_arg_info, arg_info, sizeof(zend_internal_arg_info) * num_args);
reg_function->arg_info = new_arg_info + 1;
for (i = 0; i < num_args; i++) {
if (ZEND_TYPE_HAS_LITERAL_NAME(new_arg_info[i].type)) {
// gen_stubs.php does not support codegen for DNF types in arg infos.
// As a temporary workaround, we split the type name on `|` characters,
// converting it to an union type if necessary.
const char *class_name = ZEND_TYPE_LITERAL_NAME(new_arg_info[i].type);
new_arg_info[i].type.type_mask &= ~_ZEND_TYPE_LITERAL_NAME_BIT;
size_t num_types = 1;
const char *p = class_name;
while ((p = strchr(p, '|'))) {
num_types++;
p++;
}
if (num_types == 1) {
/* Simple class type */
zend_string *str = zend_string_init_interned(class_name, strlen(class_name), 1);
zend_alloc_ce_cache(str);
ZEND_TYPE_SET_PTR(new_arg_info[i].type, str);
new_arg_info[i].type.type_mask |= _ZEND_TYPE_NAME_BIT;
} else {
/* Union type */
zend_type_list *list = malloc(ZEND_TYPE_LIST_SIZE(num_types));
list->num_types = num_types;
ZEND_TYPE_SET_LIST(new_arg_info[i].type, list);
ZEND_TYPE_FULL_MASK(new_arg_info[i].type) |= _ZEND_TYPE_UNION_BIT;
const char *start = class_name;
uint32_t j = 0;
while (true) {
const char *end = strchr(start, '|');
zend_string *str = zend_string_init_interned(start, end ? end - start : strlen(start), 1);
zend_alloc_ce_cache(str);
list->types[j] = (zend_type) ZEND_TYPE_INIT_CLASS(str, 0, 0);
if (!end) {
break;
}
start = end + 1;
j++;
}
}
}
if (ZEND_TYPE_IS_ITERABLE_FALLBACK(new_arg_info[i].type)) {
/* Warning generated an extension load warning which is emitted for every test
zend_error(E_CORE_WARNING, "iterable type is now a compile time alias for array|Traversable,"
" regenerate the argument info via the php-src gen_stub build script");
*/
zend_type legacy_iterable = ZEND_TYPE_INIT_CLASS_MASK(
ZSTR_KNOWN(ZEND_STR_TRAVERSABLE),
(new_arg_info[i].type.type_mask | MAY_BE_ARRAY)
);
new_arg_info[i].type = legacy_iterable;
}
zend_normalize_internal_type(&new_arg_info[i].type);
}
}
if (scope) {
zend_check_magic_method_implementation(
scope, (zend_function *)reg_function, lowercase_name, E_CORE_ERROR);
zend_add_magic_method(scope, (zend_function *)reg_function, lowercase_name);
}
ptr++;
count++;
zend_string_release(lowercase_name);
}
if (unload) { /* before unloading, display all remaining bad function in the module */
while (ptr->fname) {
fname_len = strlen(ptr->fname);
lowercase_name = zend_string_alloc(fname_len, 0);
zend_str_tolower_copy(ZSTR_VAL(lowercase_name), ptr->fname, fname_len);
if (zend_hash_exists(target_function_table, lowercase_name)) {
zend_error(error_type, "Function registration failed - duplicate name - %s%s%s", scope ? ZSTR_VAL(scope->name) : "", scope ? "::" : "", ptr->fname);
}
zend_string_efree(lowercase_name);
ptr++;
}
zend_unregister_functions(functions, count, target_function_table);
return FAILURE;
}
return SUCCESS;
}
/* }}} */
/* count=-1 means erase all functions, otherwise,
* erase the first count functions
*/
ZEND_API void zend_unregister_functions(const zend_function_entry *functions, int count, HashTable *function_table) /* {{{ */
{
const zend_function_entry *ptr = functions;
int i=0;
HashTable *target_function_table = function_table;
zend_string *lowercase_name;
size_t fname_len;
if (!target_function_table) {
target_function_table = CG(function_table);
}
while (ptr->fname) {
if (count!=-1 && i>=count) {
break;
}
fname_len = strlen(ptr->fname);
lowercase_name = zend_string_alloc(fname_len, 0);
zend_str_tolower_copy(ZSTR_VAL(lowercase_name), ptr->fname, fname_len);
zend_hash_del(target_function_table, lowercase_name);
zend_string_efree(lowercase_name);
ptr++;
i++;
}
}
/* }}} */
ZEND_API zend_result zend_startup_module(zend_module_entry *module) /* {{{ */
{
if ((module = zend_register_internal_module(module)) != NULL && zend_startup_module_ex(module) == SUCCESS) {
return SUCCESS;
}
return FAILURE;
}
/* }}} */
ZEND_API zend_result zend_get_module_started(const char *module_name) /* {{{ */
{
zend_module_entry *module;
module = zend_hash_str_find_ptr(&module_registry, module_name, strlen(module_name));
return (module && module->module_started) ? SUCCESS : FAILURE;
}
/* }}} */
static int clean_module_class(zval *el, void *arg) /* {{{ */
{
zend_class_entry *ce = (zend_class_entry *)Z_PTR_P(el);
int module_number = *(int *)arg;
if (ce->type == ZEND_INTERNAL_CLASS && ce->info.internal.module->module_number == module_number) {
return ZEND_HASH_APPLY_REMOVE;
} else {
return ZEND_HASH_APPLY_KEEP;
}
}
/* }}} */
static void clean_module_classes(int module_number) /* {{{ */
{
zend_hash_apply_with_argument(EG(class_table), clean_module_class, (void *) &module_number);
}
/* }}} */
static int clean_module_function(zval *el, void *arg) /* {{{ */
{
zend_function *fe = (zend_function *) Z_PTR_P(el);
zend_module_entry *module = (zend_module_entry *) arg;
if (fe->common.type == ZEND_INTERNAL_FUNCTION && fe->internal_function.module == module) {
return ZEND_HASH_APPLY_REMOVE;
} else {
return ZEND_HASH_APPLY_KEEP;
}
}
/* }}} */
static void clean_module_functions(zend_module_entry *module) /* {{{ */
{
zend_hash_apply_with_argument(CG(function_table), clean_module_function, module);
}
/* }}} */
void module_destructor(zend_module_entry *module) /* {{{ */
{
#if ZEND_RC_DEBUG
bool orig_rc_debug = zend_rc_debug;
#endif
if (module->type == MODULE_TEMPORARY) {
#if ZEND_RC_DEBUG
/* FIXME: Loading extensions during the request breaks some invariants.
* In particular, it will create persistent interned strings, which is
* not allowed at this stage. */
zend_rc_debug = false;
#endif
zend_clean_module_rsrc_dtors(module->module_number);
clean_module_constants(module->module_number);
clean_module_classes(module->module_number);
}
if (module->module_started && module->module_shutdown_func) {
#if 0
zend_printf("%s: Module shutdown\n", module->name);
#endif
module->module_shutdown_func(module->type, module->module_number);
}
if (module->module_started
&& !module->module_shutdown_func
&& module->type == MODULE_TEMPORARY) {
zend_unregister_ini_entries_ex(module->module_number, module->type);
}
/* Deinitialize module globals */
if (module->globals_size) {
#ifdef ZTS
if (*module->globals_id_ptr) {
ts_free_id(*module->globals_id_ptr);
}
#else
if (module->globals_dtor) {
module->globals_dtor(module->globals_ptr);
}
#endif
}
module->module_started=0;
if (module->type == MODULE_TEMPORARY && module->functions) {
zend_unregister_functions(module->functions, -1, NULL);
/* Clean functions registered separately from module->functions */
clean_module_functions(module);
}
#if ZEND_RC_DEBUG
zend_rc_debug = orig_rc_debug;
#endif
}
/* }}} */
void module_registry_unload(const zend_module_entry *module)
{
#ifdef HAVE_LIBDL
if (!getenv("ZEND_DONT_UNLOAD_MODULES")) {
DL_UNLOAD(module->handle);
}
#else
ZEND_IGNORE_VALUE(module);
#endif
}
ZEND_API void zend_activate_modules(void) /* {{{ */
{
zend_module_entry **p = module_request_startup_handlers;
while (*p) {
zend_module_entry *module = *p;
if (module->request_startup_func(module->type, module->module_number)==FAILURE) {
zend_error(E_WARNING, "request_startup() for %s module failed", module->name);
exit(1);
}
p++;
}
}
/* }}} */
ZEND_API void zend_deactivate_modules(void) /* {{{ */
{
EG(current_execute_data) = NULL; /* we're no longer executing anything */
if (EG(full_tables_cleanup)) {
zend_module_entry *module;
ZEND_HASH_MAP_REVERSE_FOREACH_PTR(&module_registry, module) {
if (module->request_shutdown_func) {
zend_try {
module->request_shutdown_func(module->type, module->module_number);
} zend_end_try();
}
} ZEND_HASH_FOREACH_END();
} else {
zend_module_entry **p = module_request_shutdown_handlers;
while (*p) {
zend_module_entry *module = *p;
zend_try {
module->request_shutdown_func(module->type, module->module_number);
} zend_end_try();
p++;
}
}
}
/* }}} */
void zend_unload_modules(void) /* {{{ */
{
zend_module_entry **modules = modules_dl_loaded;
while (*modules) {
module_registry_unload(*modules);
modules++;
}
free(modules_dl_loaded);
modules_dl_loaded = NULL;
}
/* }}} */
ZEND_API void zend_post_deactivate_modules(void) /* {{{ */
{
if (EG(full_tables_cleanup)) {
zend_module_entry *module;
zval *zv;
zend_string *key;
ZEND_HASH_MAP_FOREACH_PTR(&module_registry, module) {
if (module->post_deactivate_func) {
module->post_deactivate_func();
}
} ZEND_HASH_FOREACH_END();
ZEND_HASH_MAP_REVERSE_FOREACH_STR_KEY_VAL(&module_registry, key, zv) {
module = Z_PTR_P(zv);
if (module->type != MODULE_TEMPORARY) {
break;
}
module_destructor(module);
if (module->handle) {
module_registry_unload(module);
}
zend_string_release_ex(key, 0);
} ZEND_HASH_MAP_FOREACH_END_DEL();
} else {
zend_module_entry **p = module_post_deactivate_handlers;
while (*p) {
zend_module_entry *module = *p;
module->post_deactivate_func();
p++;
}
}
}
/* }}} */
/* return the next free module number */
ZEND_API int zend_next_free_module(void) /* {{{ */
{
return zend_hash_num_elements(&module_registry);
}
/* }}} */
static zend_class_entry *do_register_internal_class(zend_class_entry *orig_class_entry, uint32_t ce_flags) /* {{{ */
{
zend_class_entry *class_entry = malloc(sizeof(zend_class_entry));
zend_string *lowercase_name;
*class_entry = *orig_class_entry;
class_entry->type = ZEND_INTERNAL_CLASS;
zend_initialize_class_data(class_entry, 0);
zend_alloc_ce_cache(class_entry->name);
class_entry->ce_flags = orig_class_entry->ce_flags | ce_flags | ZEND_ACC_CONSTANTS_UPDATED | ZEND_ACC_LINKED | ZEND_ACC_RESOLVED_PARENT | ZEND_ACC_RESOLVED_INTERFACES;
class_entry->info.internal.module = EG(current_module);
if (class_entry->info.internal.builtin_functions) {
zend_register_functions(class_entry, class_entry->info.internal.builtin_functions, &class_entry->function_table, EG(current_module)->type);
}
lowercase_name = zend_string_tolower_ex(orig_class_entry->name, EG(current_module)->type == MODULE_PERSISTENT);
lowercase_name = zend_new_interned_string(lowercase_name);
zend_hash_update_ptr(CG(class_table), lowercase_name, class_entry);
zend_string_release_ex(lowercase_name, 1);
if (class_entry->__tostring && !zend_string_equals_literal(class_entry->name, "Stringable")
&& !(class_entry->ce_flags & ZEND_ACC_TRAIT)) {
ZEND_ASSERT(zend_ce_stringable
&& "Should be registered before first class using __toString()");
zend_do_implement_interface(class_entry, zend_ce_stringable);
}
return class_entry;
}
/* }}} */
/* If parent_ce is not NULL then it inherits from parent_ce
* If parent_ce is NULL and parent_name isn't then it looks for the parent and inherits from it
* If both parent_ce and parent_name are NULL it does a regular class registration
* If parent_name is specified but not found NULL is returned
*/
ZEND_API zend_class_entry *zend_register_internal_class_ex(zend_class_entry *class_entry, zend_class_entry *parent_ce) /* {{{ */
{
return zend_register_internal_class_with_flags(class_entry, parent_ce, 0);
}
/* }}} */
ZEND_API zend_class_entry *zend_register_internal_class_with_flags(
zend_class_entry *class_entry,
zend_class_entry *parent_ce,
uint32_t ce_flags
) {
zend_class_entry *register_class = do_register_internal_class(class_entry, ce_flags);
if (parent_ce) {
zend_do_inheritance(register_class, parent_ce);
zend_build_properties_info_table(register_class);
}
return register_class;
}
ZEND_API void zend_class_implements(zend_class_entry *class_entry, int num_interfaces, ...) /* {{{ */
{
zend_class_entry *interface_entry;
va_list interface_list;
va_start(interface_list, num_interfaces);
while (num_interfaces--) {
interface_entry = va_arg(interface_list, zend_class_entry *);
if (interface_entry == zend_ce_stringable
&& zend_class_implements_interface(class_entry, zend_ce_stringable)) {
/* Stringable is implemented automatically,
* silently ignore an explicit implementation. */
continue;
}
zend_do_implement_interface(class_entry, interface_entry);
}
va_end(interface_list);
}
/* }}} */
/* A class that contains at least one abstract method automatically becomes an abstract class.
*/
ZEND_API zend_class_entry *zend_register_internal_class(zend_class_entry *orig_class_entry) /* {{{ */
{
return do_register_internal_class(orig_class_entry, 0);
}
/* }}} */
ZEND_API zend_class_entry *zend_register_internal_interface(zend_class_entry *orig_class_entry) /* {{{ */
{
return do_register_internal_class(orig_class_entry, ZEND_ACC_INTERFACE);
}
/* }}} */
ZEND_API zend_result zend_register_class_alias_ex(const char *name, size_t name_len, zend_class_entry *ce, bool persistent) /* {{{ */
{
zend_string *lcname;
zval zv, *ret;
/* TODO: Move this out of here in 7.4. */
if (persistent && EG(current_module) && EG(current_module)->type == MODULE_TEMPORARY) {
persistent = 0;
}
if (name[0] == '\\') {
lcname = zend_string_alloc(name_len-1, persistent);
zend_str_tolower_copy(ZSTR_VAL(lcname), name+1, name_len-1);
} else {
lcname = zend_string_alloc(name_len, persistent);
zend_str_tolower_copy(ZSTR_VAL(lcname), name, name_len);
}
zend_assert_valid_class_name(lcname, "a class alias");
lcname = zend_new_interned_string(lcname);
/* We cannot increase the refcount of an internal class during request time.
* Instead of having to deal with differentiating between class types and lifetimes,
* we simply don't increase the refcount of a class entry for aliases.
*/
ZVAL_ALIAS_PTR(&zv, ce);
ret = zend_hash_add(CG(class_table), lcname, &zv);
zend_string_release_ex(lcname, 0);
if (ret) {
// avoid notifying at MINIT time
if (ce->type == ZEND_USER_CLASS) {
zend_observer_class_linked_notify(ce, lcname);
}
return SUCCESS;
}
return FAILURE;
}
/* }}} */
// TODO num_symbol_tables as unsigned int?
ZEND_API zend_result zend_set_hash_symbol(zval *symbol, const char *name, size_t name_length, bool is_ref, int num_symbol_tables, ...) /* {{{ */
{
HashTable *symbol_table;
va_list symbol_table_list;
if (num_symbol_tables <= 0) return FAILURE;
if (is_ref) {
ZVAL_MAKE_REF(symbol);
}
va_start(symbol_table_list, num_symbol_tables);
while (num_symbol_tables-- > 0) {
symbol_table = va_arg(symbol_table_list, HashTable *);
zend_hash_str_update(symbol_table, name, name_length, symbol);
Z_TRY_ADDREF_P(symbol);
}
va_end(symbol_table_list);
return SUCCESS;
}
/* }}} */
/* Disabled functions support */
static void zend_disable_function(const char *function_name, size_t function_name_length)
{
if (UNEXPECTED(
(function_name_length == strlen("exit") && !memcmp(function_name, "exit", strlen("exit")))
|| (function_name_length == strlen("die") && !memcmp(function_name, "die", strlen("die")))
)) {
zend_error(E_WARNING, "Cannot disable function %s()", function_name);
return;
}
zend_hash_str_del(CG(function_table), function_name, function_name_length);
}
ZEND_API void zend_disable_functions(const char *function_list) /* {{{ */
{
if (!function_list || !*function_list) {
return;
}
const char *s = NULL, *e = function_list;
while (*e) {
switch (*e) {
case ' ':
case ',':
if (s) {
zend_disable_function(s, e - s);
s = NULL;
}
break;
default:
if (!s) {
s = e;
}
break;
}
e++;
}
if (s) {
zend_disable_function(s, e - s);
}
/* Rehash the function table after deleting functions. This ensures that all internal
* functions are contiguous, which means we don't need to perform full table cleanup
* on shutdown. */
zend_hash_rehash(CG(function_table));
}
/* }}} */
#ifdef ZEND_WIN32
#pragma optimize("", off)
#endif
static ZEND_COLD zend_object *display_disabled_class(zend_class_entry *class_type) /* {{{ */
{
zend_object *intern;
intern = zend_objects_new(class_type);
/* Initialize default properties */
if (EXPECTED(class_type->default_properties_count != 0)) {
zval *p = intern->properties_table;
zval *end = p + class_type->default_properties_count;
do {
ZVAL_UNDEF(p);
p++;
} while (p != end);
}
zend_error(E_WARNING, "%s() has been disabled for security reasons", ZSTR_VAL(class_type->name));
return intern;
}
#ifdef ZEND_WIN32
#pragma optimize("", on)
#endif
/* }}} */
static const zend_function_entry disabled_class_new[] = {
ZEND_FE_END
};
ZEND_API zend_result zend_disable_class(const char *class_name, size_t class_name_length) /* {{{ */
{
zend_class_entry *disabled_class;
zend_string *key;
zend_function *fn;
zend_property_info *prop;
key = zend_string_alloc(class_name_length, 0);
zend_str_tolower_copy(ZSTR_VAL(key), class_name, class_name_length);
disabled_class = zend_hash_find_ptr(CG(class_table), key);
zend_string_release_ex(key, 0);
if (!disabled_class) {
return FAILURE;
}
/* Will be reset by INIT_CLASS_ENTRY. */
free(disabled_class->interfaces);
INIT_CLASS_ENTRY_INIT_METHODS((*disabled_class), disabled_class_new);
disabled_class->create_object = display_disabled_class;
ZEND_HASH_MAP_FOREACH_PTR(&disabled_class->function_table, fn) {
if ((fn->common.fn_flags & (ZEND_ACC_HAS_RETURN_TYPE|ZEND_ACC_HAS_TYPE_HINTS)) &&
fn->common.scope == disabled_class) {
zend_free_internal_arg_info(&fn->internal_function);
}
} ZEND_HASH_FOREACH_END();
zend_hash_clean(&disabled_class->function_table);
ZEND_HASH_MAP_FOREACH_PTR(&disabled_class->properties_info, prop) {
if (prop->ce == disabled_class) {
zend_string_release(prop->name);
zend_type_release(prop->type, /* persistent */ 1);
free(prop);
}
} ZEND_HASH_FOREACH_END();
zend_hash_clean(&disabled_class->properties_info);
return SUCCESS;
}
/* }}} */
static zend_always_inline zend_class_entry *get_scope(zend_execute_data *frame)
{
return frame && frame->func ? frame->func->common.scope : NULL;
}
static bool zend_is_callable_check_class(zend_string *name, zend_class_entry *scope, zend_execute_data *frame, zend_fcall_info_cache *fcc, bool *strict_class, char **error, bool suppress_deprecation) /* {{{ */
{
bool ret = 0;
zend_class_entry *ce;
size_t name_len = ZSTR_LEN(name);
zend_string *lcname;
ALLOCA_FLAG(use_heap);
ZSTR_ALLOCA_ALLOC(lcname, name_len, use_heap);
zend_str_tolower_copy(ZSTR_VAL(lcname), ZSTR_VAL(name), name_len);
*strict_class = 0;
if (zend_string_equals_literal(lcname, "self")) {
if (!scope) {
if (error) *error = estrdup("cannot access \"self\" when no class scope is active");
} else {
if (!suppress_deprecation) {
zend_error(E_DEPRECATED, "Use of \"self\" in callables is deprecated");
}
fcc->called_scope = zend_get_called_scope(frame);
if (!fcc->called_scope || !instanceof_function(fcc->called_scope, scope)) {
fcc->called_scope = scope;
}
fcc->calling_scope = scope;
if (!fcc->object) {
fcc->object = zend_get_this_object(frame);
}
ret = 1;
}
} else if (zend_string_equals_literal(lcname, "parent")) {
if (!scope) {
if (error) *error = estrdup("cannot access \"parent\" when no class scope is active");
} else if (!scope->parent) {
if (error) *error = estrdup("cannot access \"parent\" when current class scope has no parent");
} else {
if (!suppress_deprecation) {
zend_error(E_DEPRECATED, "Use of \"parent\" in callables is deprecated");
}
fcc->called_scope = zend_get_called_scope(frame);
if (!fcc->called_scope || !instanceof_function(fcc->called_scope, scope->parent)) {
fcc->called_scope = scope->parent;
}
fcc->calling_scope = scope->parent;
if (!fcc->object) {
fcc->object = zend_get_this_object(frame);
}
*strict_class = 1;
ret = 1;
}
} else if (zend_string_equals(lcname, ZSTR_KNOWN(ZEND_STR_STATIC))) {
zend_class_entry *called_scope = zend_get_called_scope(frame);
if (!called_scope) {
if (error) *error = estrdup("cannot access \"static\" when no class scope is active");
} else {
if (!suppress_deprecation) {
zend_error(E_DEPRECATED, "Use of \"static\" in callables is deprecated");
}
fcc->called_scope = called_scope;
fcc->calling_scope = called_scope;
if (!fcc->object) {
fcc->object = zend_get_this_object(frame);
}
*strict_class = 1;
ret = 1;
}
} else if ((ce = zend_lookup_class(name)) != NULL) {
zend_class_entry *scope = get_scope(frame);
fcc->calling_scope = ce;
if (scope && !fcc->object) {
zend_object *object = zend_get_this_object(frame);
if (object &&
instanceof_function(object->ce, scope) &&
instanceof_function(scope, ce)) {
fcc->object = object;
fcc->called_scope = object->ce;
} else {
fcc->called_scope = ce;
}
} else {
fcc->called_scope = fcc->object ? fcc->object->ce : ce;
}
*strict_class = 1;
ret = 1;
} else {
if (error) zend_spprintf(error, 0, "class \"%.*s\" not found", (int)name_len, ZSTR_VAL(name));
}
ZSTR_ALLOCA_FREE(lcname, use_heap);
return ret;
}
/* }}} */
ZEND_API void zend_release_fcall_info_cache(zend_fcall_info_cache *fcc) {
if (fcc->function_handler &&
(fcc->function_handler->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE)) {
if (fcc->function_handler->common.function_name) {
zend_string_release_ex(fcc->function_handler->common.function_name, 0);
}
zend_free_trampoline(fcc->function_handler);
fcc->function_handler = NULL;
}
}
static zend_always_inline bool zend_is_callable_check_func(zval *callable, zend_execute_data *frame, zend_fcall_info_cache *fcc, bool strict_class, char **error, bool suppress_deprecation) /* {{{ */
{
zend_class_entry *ce_org = fcc->calling_scope;
bool retval = 0;
zend_string *mname, *cname;
zend_string *lmname;
const char *colon;
size_t clen;
HashTable *ftable;
int call_via_handler = 0;
zend_class_entry *scope;
zval *zv;
ALLOCA_FLAG(use_heap)
fcc->calling_scope = NULL;
if (!ce_org) {
zend_function *func;
zend_string *lmname;
/* Check if function with given name exists.
* This may be a compound name that includes namespace name */
if (UNEXPECTED(Z_STRVAL_P(callable)[0] == '\\')) {
/* Skip leading \ */
ZSTR_ALLOCA_ALLOC(lmname, Z_STRLEN_P(callable) - 1, use_heap);
zend_str_tolower_copy(ZSTR_VAL(lmname), Z_STRVAL_P(callable) + 1, Z_STRLEN_P(callable) - 1);
func = zend_fetch_function(lmname);
ZSTR_ALLOCA_FREE(lmname, use_heap);
} else {
lmname = Z_STR_P(callable);
func = zend_fetch_function(lmname);
if (!func) {
ZSTR_ALLOCA_ALLOC(lmname, Z_STRLEN_P(callable), use_heap);
zend_str_tolower_copy(ZSTR_VAL(lmname), Z_STRVAL_P(callable), Z_STRLEN_P(callable));
func = zend_fetch_function(lmname);
ZSTR_ALLOCA_FREE(lmname, use_heap);
}
}
if (EXPECTED(func != NULL)) {
fcc->function_handler = func;
return 1;
}
}
/* Split name into class/namespace and method/function names */
if ((colon = zend_memrchr(Z_STRVAL_P(callable), ':', Z_STRLEN_P(callable))) != NULL &&
colon > Z_STRVAL_P(callable) &&
*(colon-1) == ':'
) {
size_t mlen;
colon--;
clen = colon - Z_STRVAL_P(callable);
mlen = Z_STRLEN_P(callable) - clen - 2;
if (colon == Z_STRVAL_P(callable)) {
if (error) *error = estrdup("invalid function name");
return 0;
}
/* This is a compound name.
* Try to fetch class and then find static method. */
if (ce_org) {
scope = ce_org;
} else {
scope = get_scope(frame);
}
cname = zend_string_init_interned(Z_STRVAL_P(callable), clen, 0);
if (ZSTR_HAS_CE_CACHE(cname) && ZSTR_GET_CE_CACHE(cname)) {
fcc->calling_scope = ZSTR_GET_CE_CACHE(cname);
if (scope && !fcc->object) {
zend_object *object = zend_get_this_object(frame);
if (object &&
instanceof_function(object->ce, scope) &&
instanceof_function(scope, fcc->calling_scope)) {
fcc->object = object;
fcc->called_scope = object->ce;
} else {
fcc->called_scope = fcc->calling_scope;
}
} else {
fcc->called_scope = fcc->object ? fcc->object->ce : fcc->calling_scope;
}
strict_class = 1;
} else if (!zend_is_callable_check_class(cname, scope, frame, fcc, &strict_class, error, suppress_deprecation || ce_org != NULL)) {
zend_string_release_ex(cname, 0);
return 0;
}
zend_string_release_ex(cname, 0);
ftable = &fcc->calling_scope->function_table;
if (ce_org && !instanceof_function(ce_org, fcc->calling_scope)) {
if (error) zend_spprintf(error, 0, "class %s is not a subclass of %s", ZSTR_VAL(ce_org->name), ZSTR_VAL(fcc->calling_scope->name));
return 0;
}
if (ce_org && !suppress_deprecation) {
zend_error(E_DEPRECATED,
"Callables of the form [\"%s\", \"%s\"] are deprecated",
ZSTR_VAL(ce_org->name), Z_STRVAL_P(callable));
}
mname = zend_string_init(Z_STRVAL_P(callable) + clen + 2, mlen, 0);
} else if (ce_org) {
/* Try to fetch find static method of given class. */
mname = Z_STR_P(callable);
zend_string_addref(mname);
ftable = &ce_org->function_table;
fcc->calling_scope = ce_org;
} else {
/* We already checked for plain function before. */
if (error) {
zend_spprintf(error, 0, "function \"%s\" not found or invalid function name", Z_STRVAL_P(callable));
}
return 0;
}
lmname = zend_string_tolower(mname);
if (strict_class &&
fcc->calling_scope &&
zend_string_equals_literal(lmname, ZEND_CONSTRUCTOR_FUNC_NAME)) {
fcc->function_handler = fcc->calling_scope->constructor;
if (fcc->function_handler) {
retval = 1;
}
} else if ((zv = zend_hash_find(ftable, lmname)) != NULL) {
fcc->function_handler = Z_PTR_P(zv);
retval = 1;
if ((fcc->function_handler->op_array.fn_flags & ZEND_ACC_CHANGED) &&
!strict_class) {
scope = get_scope(frame);
if (scope &&
instanceof_function(fcc->function_handler->common.scope, scope)) {
zv = zend_hash_find(&scope->function_table, lmname);
if (zv != NULL) {
zend_function *priv_fbc = Z_PTR_P(zv);
if ((priv_fbc->common.fn_flags & ZEND_ACC_PRIVATE)
&& priv_fbc->common.scope == scope) {
fcc->function_handler = priv_fbc;
}
}
}
}
if (!(fcc->function_handler->common.fn_flags & ZEND_ACC_PUBLIC) &&
(fcc->calling_scope &&
((fcc->object && fcc->calling_scope->__call) ||
(!fcc->object && fcc->calling_scope->__callstatic)))) {
scope = get_scope(frame);
if (fcc->function_handler->common.scope != scope) {
if ((fcc->function_handler->common.fn_flags & ZEND_ACC_PRIVATE)
|| !zend_check_protected(zend_get_function_root_class(fcc->function_handler), scope)) {
retval = 0;
fcc->function_handler = NULL;
goto get_function_via_handler;
}
}
}
} else {
get_function_via_handler:
if (fcc->object && fcc->calling_scope == ce_org) {
if (strict_class && ce_org->__call) {
fcc->function_handler = zend_get_call_trampoline_func(ce_org, mname, 0);
call_via_handler = 1;
retval = 1;
} else {
fcc->function_handler = fcc->object->handlers->get_method(&fcc->object, mname, NULL);
if (fcc->function_handler) {
if (strict_class &&
(!fcc->function_handler->common.scope ||
!instanceof_function(ce_org, fcc->function_handler->common.scope))) {
zend_release_fcall_info_cache(fcc);
} else {
retval = 1;
call_via_handler = (fcc->function_handler->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE) != 0;
}
}
}
} else if (fcc->calling_scope) {
if (fcc->calling_scope->get_static_method) {
fcc->function_handler = fcc->calling_scope->get_static_method(fcc->calling_scope, mname);
} else {
fcc->function_handler = zend_std_get_static_method(fcc->calling_scope, mname, NULL);
}
if (fcc->function_handler) {
retval = 1;
call_via_handler = (fcc->function_handler->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE) != 0;
if (call_via_handler && !fcc->object) {
zend_object *object = zend_get_this_object(frame);
if (object &&
instanceof_function(object->ce, fcc->calling_scope)) {
fcc->object = object;
}
}
}
}
}
if (retval) {
if (fcc->calling_scope && !call_via_handler) {
if (fcc->function_handler->common.fn_flags & ZEND_ACC_ABSTRACT) {
retval = 0;
if (error) {
zend_spprintf(error, 0, "cannot call abstract method %s::%s()", ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(fcc->function_handler->common.function_name));
}
} else if (!fcc->object && !(fcc->function_handler->common.fn_flags & ZEND_ACC_STATIC)) {
retval = 0;
if (error) {
zend_spprintf(error, 0, "non-static method %s::%s() cannot be called statically", ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(fcc->function_handler->common.function_name));
}
}
if (retval
&& !(fcc->function_handler->common.fn_flags & ZEND_ACC_PUBLIC)) {
scope = get_scope(frame);
if (fcc->function_handler->common.scope != scope) {
if ((fcc->function_handler->common.fn_flags & ZEND_ACC_PRIVATE)
|| (!zend_check_protected(zend_get_function_root_class(fcc->function_handler), scope))) {
if (error) {
if (*error) {
efree(*error);
}
zend_spprintf(error, 0, "cannot access %s method %s::%s()", zend_visibility_string(fcc->function_handler->common.fn_flags), ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(fcc->function_handler->common.function_name));
}
retval = 0;
}
}
}
}
} else if (error) {
if (fcc->calling_scope) {
zend_spprintf(error, 0, "class %s does not have a method \"%s\"", ZSTR_VAL(fcc->calling_scope->name), ZSTR_VAL(mname));
} else {
zend_spprintf(error, 0, "function %s() does not exist", ZSTR_VAL(mname));
}
}
zend_string_release_ex(lmname, 0);
zend_string_release_ex(mname, 0);
if (fcc->object) {
fcc->called_scope = fcc->object->ce;
if (fcc->function_handler
&& (fcc->function_handler->common.fn_flags & ZEND_ACC_STATIC)) {
fcc->object = NULL;
}
}
return retval;
}
/* }}} */
ZEND_API zend_string *zend_get_callable_name_ex(zval *callable, zend_object *object) /* {{{ */
{
try_again:
switch (Z_TYPE_P(callable)) {
case IS_STRING:
if (object) {
return zend_create_member_string(object->ce->name, Z_STR_P(callable));
}
return zend_string_copy(Z_STR_P(callable));
case IS_ARRAY:
{
zval *method = NULL;
zval *obj = NULL;
if (zend_hash_num_elements(Z_ARRVAL_P(callable)) == 2) {
obj = zend_hash_index_find_deref(Z_ARRVAL_P(callable), 0);
method = zend_hash_index_find_deref(Z_ARRVAL_P(callable), 1);
}
if (obj == NULL || method == NULL || Z_TYPE_P(method) != IS_STRING) {
return ZSTR_KNOWN(ZEND_STR_ARRAY_CAPITALIZED);
}
if (Z_TYPE_P(obj) == IS_STRING) {
return zend_create_member_string(Z_STR_P(obj), Z_STR_P(method));
} else if (Z_TYPE_P(obj) == IS_OBJECT) {
return zend_create_member_string(Z_OBJCE_P(obj)->name, Z_STR_P(method));
} else {
return ZSTR_KNOWN(ZEND_STR_ARRAY_CAPITALIZED);
}
}
case IS_OBJECT:
{
zend_class_entry *ce = Z_OBJCE_P(callable);
return zend_string_concat2(
ZSTR_VAL(ce->name), ZSTR_LEN(ce->name),
"::__invoke", sizeof("::__invoke") - 1);
}
case IS_REFERENCE:
callable = Z_REFVAL_P(callable);
goto try_again;
default:
return zval_get_string_func(callable);
}
}
/* }}} */
ZEND_API zend_string *zend_get_callable_name(zval *callable) /* {{{ */
{
return zend_get_callable_name_ex(callable, NULL);
}
/* }}} */
ZEND_API bool zend_is_callable_at_frame(
zval *callable, zend_object *object, zend_execute_data *frame,
uint32_t check_flags, zend_fcall_info_cache *fcc, char **error) /* {{{ */
{
bool ret;
zend_fcall_info_cache fcc_local;
bool strict_class = 0;
if (fcc == NULL) {
fcc = &fcc_local;
}
if (error) {
*error = NULL;
}
fcc->calling_scope = NULL;
fcc->called_scope = NULL;
fcc->function_handler = NULL;
fcc->object = NULL;
fcc->closure = NULL;
again:
switch (Z_TYPE_P(callable)) {
case IS_STRING:
if (object) {
fcc->object = object;
fcc->calling_scope = object->ce;
}
if (check_flags & IS_CALLABLE_CHECK_SYNTAX_ONLY) {
fcc->called_scope = fcc->calling_scope;
return 1;
}
check_func:
ret = zend_is_callable_check_func(callable, frame, fcc, strict_class, error, check_flags & IS_CALLABLE_SUPPRESS_DEPRECATIONS);
if (fcc == &fcc_local) {
zend_release_fcall_info_cache(fcc);
}
return ret;
case IS_ARRAY:
{
if (zend_hash_num_elements(Z_ARRVAL_P(callable)) != 2) {
if (error) *error = estrdup("array callback must have exactly two members");
return 0;
}
zval *obj = zend_hash_index_find(Z_ARRVAL_P(callable), 0);
zval *method = zend_hash_index_find(Z_ARRVAL_P(callable), 1);
if (!obj || !method) {
if (error) *error = estrdup("array callback has to contain indices 0 and 1");
return 0;
}
ZVAL_DEREF(obj);
if (Z_TYPE_P(obj) != IS_STRING && Z_TYPE_P(obj) != IS_OBJECT) {
if (error) *error = estrdup("first array member is not a valid class name or object");
return 0;
}
ZVAL_DEREF(method);
if (Z_TYPE_P(method) != IS_STRING) {
if (error) *error = estrdup("second array member is not a valid method");
return 0;
}
if (Z_TYPE_P(obj) == IS_STRING) {
if (check_flags & IS_CALLABLE_CHECK_SYNTAX_ONLY) {
return 1;
}
if (!zend_is_callable_check_class(Z_STR_P(obj), get_scope(frame), frame, fcc, &strict_class, error, check_flags & IS_CALLABLE_SUPPRESS_DEPRECATIONS)) {
return 0;
}
} else {
ZEND_ASSERT(Z_TYPE_P(obj) == IS_OBJECT);
fcc->calling_scope = Z_OBJCE_P(obj); /* TBFixed: what if it's overloaded? */
fcc->object = Z_OBJ_P(obj);
if (check_flags & IS_CALLABLE_CHECK_SYNTAX_ONLY) {
fcc->called_scope = fcc->calling_scope;
return 1;
}
}
callable = method;
goto check_func;
}
return 0;
case IS_OBJECT:
if (Z_OBJ_HANDLER_P(callable, get_closure) && Z_OBJ_HANDLER_P(callable, get_closure)(Z_OBJ_P(callable), &fcc->calling_scope, &fcc->function_handler, &fcc->object, 1) == SUCCESS) {
fcc->called_scope = fcc->calling_scope;
fcc->closure = Z_OBJ_P(callable);
if (fcc == &fcc_local) {
zend_release_fcall_info_cache(fcc);
}
return 1;
}
if (error) *error = estrdup("no array or string given");
return 0;
case IS_REFERENCE:
callable = Z_REFVAL_P(callable);
goto again;
default:
if (error) *error = estrdup("no array or string given");
return 0;
}
}
/* }}} */
ZEND_API bool zend_is_callable_ex(zval *callable, zend_object *object, uint32_t check_flags, zend_string **callable_name, zend_fcall_info_cache *fcc, char **error) /* {{{ */
{
/* Determine callability at the first parent user frame. */
zend_execute_data *frame = EG(current_execute_data);
while (frame && (!frame->func || !ZEND_USER_CODE(frame->func->type))) {
frame = frame->prev_execute_data;
}
bool ret = zend_is_callable_at_frame(callable, object, frame, check_flags, fcc, error);
if (callable_name) {
*callable_name = zend_get_callable_name_ex(callable, object);
}
return ret;
}
ZEND_API bool zend_is_callable(zval *callable, uint32_t check_flags, zend_string **callable_name) /* {{{ */
{
return zend_is_callable_ex(callable, NULL, check_flags, callable_name, NULL, NULL);
}
/* }}} */
ZEND_API bool zend_make_callable(zval *callable, zend_string **callable_name) /* {{{ */
{
zend_fcall_info_cache fcc;
if (zend_is_callable_ex(callable, NULL, IS_CALLABLE_SUPPRESS_DEPRECATIONS, callable_name, &fcc, NULL)) {
if (Z_TYPE_P(callable) == IS_STRING && fcc.calling_scope) {
zval_ptr_dtor_str(callable);
array_init(callable);
add_next_index_str(callable, zend_string_copy(fcc.calling_scope->name));
add_next_index_str(callable, zend_string_copy(fcc.function_handler->common.function_name));
}
zend_release_fcall_info_cache(&fcc);
return 1;
}
return 0;
}
/* }}} */
ZEND_API zend_result zend_fcall_info_init(zval *callable, uint32_t check_flags, zend_fcall_info *fci, zend_fcall_info_cache *fcc, zend_string **callable_name, char **error) /* {{{ */
{
if (!zend_is_callable_ex(callable, NULL, check_flags, callable_name, fcc, error)) {
return FAILURE;
}
fci->size = sizeof(*fci);
fci->object = fcc->object;
ZVAL_COPY_VALUE(&fci->function_name, callable);
fci->retval = NULL;
fci->param_count = 0;
fci->params = NULL;
fci->named_params = NULL;
return SUCCESS;
}
/* }}} */
ZEND_API void zend_fcall_info_args_clear(zend_fcall_info *fci, bool free_mem) /* {{{ */
{
if (fci->params) {
zval *p = fci->params;
zval *end = p + fci->param_count;
while (p != end) {
i_zval_ptr_dtor(p);
p++;
}
if (free_mem) {
efree(fci->params);
fci->params = NULL;
}
}
fci->param_count = 0;
}
/* }}} */
ZEND_API void zend_fcall_info_args_save(zend_fcall_info *fci, uint32_t *param_count, zval **params) /* {{{ */
{
*param_count = fci->param_count;
*params = fci->params;
fci->param_count = 0;
fci->params = NULL;
}
/* }}} */
ZEND_API void zend_fcall_info_args_restore(zend_fcall_info *fci, uint32_t param_count, zval *params) /* {{{ */
{
zend_fcall_info_args_clear(fci, 1);
fci->param_count = param_count;
fci->params = params;
}
/* }}} */
ZEND_API zend_result zend_fcall_info_args_ex(zend_fcall_info *fci, zend_function *func, zval *args) /* {{{ */
{
zval *arg, *params;
uint32_t n = 1;
zend_fcall_info_args_clear(fci, !args);
if (!args) {
return SUCCESS;
}
if (Z_TYPE_P(args) != IS_ARRAY) {
return FAILURE;
}
fci->param_count = zend_hash_num_elements(Z_ARRVAL_P(args));
fci->params = params = (zval *) erealloc(fci->params, fci->param_count * sizeof(zval));
ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(args), arg) {
if (func && !Z_ISREF_P(arg) && ARG_SHOULD_BE_SENT_BY_REF(func, n)) {
ZVAL_NEW_REF(params, arg);
Z_TRY_ADDREF_P(arg);
} else {
ZVAL_COPY(params, arg);
}
params++;
n++;
} ZEND_HASH_FOREACH_END();
return SUCCESS;
}
/* }}} */
ZEND_API zend_result zend_fcall_info_args(zend_fcall_info *fci, zval *args) /* {{{ */
{
return zend_fcall_info_args_ex(fci, NULL, args);
}
/* }}} */
ZEND_API void zend_fcall_info_argp(zend_fcall_info *fci, uint32_t argc, zval *argv) /* {{{ */
{
zend_fcall_info_args_clear(fci, !argc);
if (argc) {
fci->param_count = argc;
fci->params = (zval *) erealloc(fci->params, fci->param_count * sizeof(zval));
for (uint32_t i = 0; i < argc; ++i) {
ZVAL_COPY(&fci->params[i], &argv[i]);
}
}
}
/* }}} */
ZEND_API void zend_fcall_info_argv(zend_fcall_info *fci, uint32_t argc, va_list *argv) /* {{{ */
{
zend_fcall_info_args_clear(fci, !argc);
if (argc) {
zval *arg;
fci->param_count = argc;
fci->params = (zval *) erealloc(fci->params, fci->param_count * sizeof(zval));
for (uint32_t i = 0; i < argc; ++i) {
arg = va_arg(*argv, zval *);
ZVAL_COPY(&fci->params[i], arg);
}
}
}
/* }}} */
ZEND_API void zend_fcall_info_argn(zend_fcall_info *fci, uint32_t argc, ...) /* {{{ */
{
va_list argv;
va_start(argv, argc);
zend_fcall_info_argv(fci, argc, &argv);
va_end(argv);
}
/* }}} */
ZEND_API zend_result zend_fcall_info_call(zend_fcall_info *fci, zend_fcall_info_cache *fcc, zval *retval_ptr, zval *args) /* {{{ */
{
zval retval, *org_params = NULL;
uint32_t org_count = 0;
zend_result result;
fci->retval = retval_ptr ? retval_ptr : &retval;
if (args) {
zend_fcall_info_args_save(fci, &org_count, &org_params);
zend_fcall_info_args(fci, args);
}
result = zend_call_function(fci, fcc);
if (!retval_ptr && Z_TYPE(retval) != IS_UNDEF) {
zval_ptr_dtor(&retval);
}
if (args) {
zend_fcall_info_args_restore(fci, org_count, org_params);
}
return result;
}
/* }}} */
ZEND_API void zend_get_callable_zval_from_fcc(const zend_fcall_info_cache *fcc, zval *callable)
{
if (fcc->closure) {
ZVAL_OBJ_COPY(callable, fcc->closure);
} else if (fcc->function_handler->common.scope) {
array_init(callable);
if (fcc->object) {
GC_ADDREF(fcc->object);
add_next_index_object(callable, fcc->object);
} else {
add_next_index_str(callable, zend_string_copy(fcc->calling_scope->name));
}
add_next_index_str(callable, zend_string_copy(fcc->function_handler->common.function_name));
} else {
ZVAL_STR_COPY(callable, fcc->function_handler->common.function_name);
}
}
ZEND_API const char *zend_get_module_version(const char *module_name) /* {{{ */
{
zend_string *lname;
size_t name_len = strlen(module_name);
zend_module_entry *module;
lname = zend_string_alloc(name_len, 0);
zend_str_tolower_copy(ZSTR_VAL(lname), module_name, name_len);
module = zend_hash_find_ptr(&module_registry, lname);
zend_string_efree(lname);
return module ? module->version : NULL;
}
/* }}} */
static zend_always_inline bool is_persistent_class(zend_class_entry *ce) {
return (ce->type & ZEND_INTERNAL_CLASS)
&& ce->info.internal.module->type == MODULE_PERSISTENT;
}
ZEND_API zend_property_info *zend_declare_typed_property(zend_class_entry *ce, zend_string *name, zval *property, int access_type, zend_string *doc_comment, zend_type type) /* {{{ */
{
zend_property_info *property_info, *property_info_ptr;
if (ZEND_TYPE_IS_SET(type)) {
ce->ce_flags |= ZEND_ACC_HAS_TYPE_HINTS;
if (access_type & ZEND_ACC_READONLY) {
ce->ce_flags |= ZEND_ACC_HAS_READONLY_PROPS;
}
}
if (ce->type == ZEND_INTERNAL_CLASS) {
property_info = pemalloc(sizeof(zend_property_info), 1);
} else {
property_info = zend_arena_alloc(&CG(arena), sizeof(zend_property_info));
if (Z_TYPE_P(property) == IS_CONSTANT_AST) {
ce->ce_flags &= ~ZEND_ACC_CONSTANTS_UPDATED;
if (access_type & ZEND_ACC_STATIC) {
ce->ce_flags |= ZEND_ACC_HAS_AST_STATICS;
} else {
ce->ce_flags |= ZEND_ACC_HAS_AST_PROPERTIES;
}
}
}
if (Z_TYPE_P(property) == IS_STRING && !ZSTR_IS_INTERNED(Z_STR_P(property))) {
zval_make_interned_string(property);
}
if (!(access_type & ZEND_ACC_PPP_MASK)) {
access_type |= ZEND_ACC_PUBLIC;
}
/* Add the protected(set) bit for public readonly properties with no set visibility. */
if ((access_type & (ZEND_ACC_PUBLIC|ZEND_ACC_READONLY|ZEND_ACC_PPP_SET_MASK)) == (ZEND_ACC_PUBLIC|ZEND_ACC_READONLY)) {
access_type |= ZEND_ACC_PROTECTED_SET;
} else if (UNEXPECTED(access_type & ZEND_ACC_PPP_SET_MASK)) {
if (!ZEND_TYPE_IS_SET(type)) {
zend_error_noreturn(ce->type == ZEND_INTERNAL_CLASS ? E_CORE_ERROR : E_COMPILE_ERROR,
"Property with asymmetric visibility %s::$%s must have type",
ZSTR_VAL(ce->name), ZSTR_VAL(name));
}
uint32_t get_visibility = zend_visibility_to_set_visibility(access_type & ZEND_ACC_PPP_MASK);
uint32_t set_visibility = access_type & ZEND_ACC_PPP_SET_MASK;
if (get_visibility > set_visibility) {
zend_error_noreturn(ce->type == ZEND_INTERNAL_CLASS ? E_CORE_ERROR : E_COMPILE_ERROR,
"Visibility of property %s::$%s must not be weaker than set visibility",
ZSTR_VAL(ce->name), ZSTR_VAL(name));
}
/* Remove equivalent set visibility. */
if (((access_type & (ZEND_ACC_PUBLIC|ZEND_ACC_PUBLIC_SET)) == (ZEND_ACC_PUBLIC|ZEND_ACC_PUBLIC_SET))
|| ((access_type & (ZEND_ACC_PROTECTED|ZEND_ACC_PROTECTED_SET)) == (ZEND_ACC_PROTECTED|ZEND_ACC_PROTECTED_SET))
|| ((access_type & (ZEND_ACC_PRIVATE|ZEND_ACC_PRIVATE_SET)) == (ZEND_ACC_PRIVATE|ZEND_ACC_PRIVATE_SET))) {
access_type &= ~ZEND_ACC_PPP_SET_MASK;
}
/* private(set) properties are implicitly final. */
if (access_type & ZEND_ACC_PRIVATE_SET) {
access_type |= ZEND_ACC_FINAL;
}
}
/* Virtual properties have no backing storage, the offset should never be used. However, the
* virtual flag cannot be definitively determined at compile time. Allow using default values
* anyway, and assert after inheritance that the property is not actually virtual. */
if (access_type & ZEND_ACC_VIRTUAL) {
if (Z_TYPE_P(property) == IS_UNDEF) {
property_info->offset = (uint32_t)-1;
goto skip_property_storage;
}
}
if (access_type & ZEND_ACC_STATIC) {
if ((property_info_ptr = zend_hash_find_ptr(&ce->properties_info, name)) != NULL) {
ZEND_ASSERT(property_info_ptr->flags & ZEND_ACC_STATIC);
property_info->offset = property_info_ptr->offset;
zval_ptr_dtor(&ce->default_static_members_table[property_info->offset]);
if (property_info_ptr->doc_comment && property_info_ptr->ce == ce) {
zend_string_release(property_info_ptr->doc_comment);
}
zend_hash_del(&ce->properties_info, name);
} else {
property_info->offset = ce->default_static_members_count++;
ce->default_static_members_table = perealloc(ce->default_static_members_table, sizeof(zval) * ce->default_static_members_count, ce->type == ZEND_INTERNAL_CLASS);
}
ZVAL_COPY_VALUE(&ce->default_static_members_table[property_info->offset], property);
if (!ZEND_MAP_PTR(ce->static_members_table)) {
if (ce->type == ZEND_INTERNAL_CLASS &&
ce->info.internal.module->type == MODULE_PERSISTENT) {
ZEND_MAP_PTR_NEW(ce->static_members_table);
}
}
} else {
zval *property_default_ptr;
if ((property_info_ptr = zend_hash_find_ptr(&ce->properties_info, name)) != NULL) {
ZEND_ASSERT(!(property_info_ptr->flags & ZEND_ACC_STATIC));
property_info->offset = property_info_ptr->offset;
zval_ptr_dtor(&ce->default_properties_table[OBJ_PROP_TO_NUM(property_info->offset)]);
if (property_info_ptr->doc_comment && property_info_ptr->ce == ce) {
zend_string_release_ex(property_info_ptr->doc_comment, 1);
}
zend_hash_del(&ce->properties_info, name);
ZEND_ASSERT(ce->type == ZEND_INTERNAL_CLASS);
ZEND_ASSERT(ce->properties_info_table != NULL);
ce->properties_info_table[OBJ_PROP_TO_NUM(property_info->offset)] = property_info;
} else {
property_info->offset = OBJ_PROP_TO_OFFSET(ce->default_properties_count);
ce->default_properties_count++;
ce->default_properties_table = perealloc(ce->default_properties_table, sizeof(zval) * ce->default_properties_count, ce->type == ZEND_INTERNAL_CLASS);
/* For user classes this is handled during linking */
if (ce->type == ZEND_INTERNAL_CLASS) {
ce->properties_info_table = perealloc(ce->properties_info_table, sizeof(zend_property_info *) * ce->default_properties_count, 1);
ce->properties_info_table[ce->default_properties_count - 1] = property_info;
}
}
property_default_ptr = &ce->default_properties_table[OBJ_PROP_TO_NUM(property_info->offset)];
ZVAL_COPY_VALUE(property_default_ptr, property);
Z_PROP_FLAG_P(property_default_ptr) = Z_ISUNDEF_P(property) ? IS_PROP_UNINIT : 0;
}
skip_property_storage:
if (ce->type & ZEND_INTERNAL_CLASS) {
/* Must be interned to avoid ZTS data races */
if (is_persistent_class(ce)) {
name = zend_new_interned_string(zend_string_copy(name));
}
if (Z_REFCOUNTED_P(property)) {
zend_error_noreturn(E_CORE_ERROR, "Internal zvals cannot be refcounted");
}
}
if (access_type & ZEND_ACC_PUBLIC) {
property_info->name = zend_string_copy(name);
} else if (access_type & ZEND_ACC_PRIVATE) {
property_info->name = zend_mangle_property_name(ZSTR_VAL(ce->name), ZSTR_LEN(ce->name), ZSTR_VAL(name), ZSTR_LEN(name), is_persistent_class(ce));
} else {
ZEND_ASSERT(access_type & ZEND_ACC_PROTECTED);
property_info->name = zend_mangle_property_name("*", 1, ZSTR_VAL(name), ZSTR_LEN(name), is_persistent_class(ce));
}
property_info->name = zend_new_interned_string(property_info->name);
property_info->flags = access_type;
property_info->doc_comment = doc_comment;
property_info->attributes = NULL;
property_info->prototype = property_info;
property_info->hooks = NULL;
property_info->ce = ce;
property_info->type = type;
if (is_persistent_class(ce)) {
zend_normalize_internal_type(&property_info->type);
}
zend_hash_update_ptr(&ce->properties_info, name, property_info);
return property_info;
}
/* }}} */
ZEND_API zend_result zend_try_assign_typed_ref_ex(zend_reference *ref, zval *val, bool strict) /* {{{ */
{
if (UNEXPECTED(!zend_verify_ref_assignable_zval(ref, val, strict))) {
zval_ptr_dtor(val);
return FAILURE;
} else {
zval_ptr_dtor(&ref->val);
ZVAL_COPY_VALUE(&ref->val, val);
return SUCCESS;
}
}
/* }}} */
ZEND_API zend_result zend_try_assign_typed_ref(zend_reference *ref, zval *val) /* {{{ */
{
return zend_try_assign_typed_ref_ex(ref, val, ZEND_ARG_USES_STRICT_TYPES());
}
/* }}} */
ZEND_API zend_result zend_try_assign_typed_ref_null(zend_reference *ref) /* {{{ */
{
zval tmp;
ZVAL_NULL(&tmp);
return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */
ZEND_API zend_result zend_try_assign_typed_ref_bool(zend_reference *ref, bool val) /* {{{ */
{
zval tmp;
ZVAL_BOOL(&tmp, val);
return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */
ZEND_API zend_result zend_try_assign_typed_ref_long(zend_reference *ref, zend_long lval) /* {{{ */
{
zval tmp;
ZVAL_LONG(&tmp, lval);
return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */
ZEND_API zend_result zend_try_assign_typed_ref_double(zend_reference *ref, double dval) /* {{{ */
{
zval tmp;
ZVAL_DOUBLE(&tmp, dval);
return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */
ZEND_API zend_result zend_try_assign_typed_ref_empty_string(zend_reference *ref) /* {{{ */
{
zval tmp;
ZVAL_EMPTY_STRING(&tmp);
return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */
ZEND_API zend_result zend_try_assign_typed_ref_str(zend_reference *ref, zend_string *str) /* {{{ */
{
zval tmp;
ZVAL_STR(&tmp, str);
return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */
ZEND_API zend_result zend_try_assign_typed_ref_string(zend_reference *ref, const char *string) /* {{{ */
{
zval tmp;
ZVAL_STRING(&tmp, string);
return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */
ZEND_API zend_result zend_try_assign_typed_ref_stringl(zend_reference *ref, const char *string, size_t len) /* {{{ */
{
zval tmp;
ZVAL_STRINGL(&tmp, string, len);
return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */
ZEND_API zend_result zend_try_assign_typed_ref_arr(zend_reference *ref, zend_array *arr) /* {{{ */
{
zval tmp;
ZVAL_ARR(&tmp, arr);
return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */
ZEND_API zend_result zend_try_assign_typed_ref_res(zend_reference *ref, zend_resource *res) /* {{{ */
{
zval tmp;
ZVAL_RES(&tmp, res);
return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */
ZEND_API zend_result zend_try_assign_typed_ref_zval(zend_reference *ref, zval *zv) /* {{{ */
{
zval tmp;
ZVAL_COPY_VALUE(&tmp, zv);
return zend_try_assign_typed_ref(ref, &tmp);
}
/* }}} */
ZEND_API zend_result zend_try_assign_typed_ref_zval_ex(zend_reference *ref, zval *zv, bool strict) /* {{{ */
{
zval tmp;
ZVAL_COPY_VALUE(&tmp, zv);
return zend_try_assign_typed_ref_ex(ref, &tmp, strict);
}
/* }}} */
ZEND_API void zend_declare_property_ex(zend_class_entry *ce, zend_string *name, zval *property, int access_type, zend_string *doc_comment) /* {{{ */
{
zend_declare_typed_property(ce, name, property, access_type, doc_comment, (zend_type) ZEND_TYPE_INIT_NONE(0));
}
/* }}} */
ZEND_API void zend_declare_property(zend_class_entry *ce, const char *name, size_t name_length, zval *property, int access_type) /* {{{ */
{
zend_string *key = zend_string_init(name, name_length, is_persistent_class(ce));
zend_declare_property_ex(ce, key, property, access_type, NULL);
zend_string_release(key);
}
/* }}} */
ZEND_API void zend_declare_property_null(zend_class_entry *ce, const char *name, size_t name_length, int access_type) /* {{{ */
{
zval property;
ZVAL_NULL(&property);
zend_declare_property(ce, name, name_length, &property, access_type);
}
/* }}} */
ZEND_API void zend_declare_property_bool(zend_class_entry *ce, const char *name, size_t name_length, zend_long value, int access_type) /* {{{ */
{
zval property;
ZVAL_BOOL(&property, value);
zend_declare_property(ce, name, name_length, &property, access_type);
}
/* }}} */
ZEND_API void zend_declare_property_long(zend_class_entry *ce, const char *name, size_t name_length, zend_long value, int access_type) /* {{{ */
{
zval property;
ZVAL_LONG(&property, value);
zend_declare_property(ce, name, name_length, &property, access_type);
}
/* }}} */
ZEND_API void zend_declare_property_double(zend_class_entry *ce, const char *name, size_t name_length, double value, int access_type) /* {{{ */
{
zval property;
ZVAL_DOUBLE(&property, value);
zend_declare_property(ce, name, name_length, &property, access_type);
}
/* }}} */
ZEND_API void zend_declare_property_string(zend_class_entry *ce, const char *name, size_t name_length, const char *value, int access_type) /* {{{ */
{
zval property;
ZVAL_NEW_STR(&property, zend_string_init(value, strlen(value), ce->type & ZEND_INTERNAL_CLASS));
zend_declare_property(ce, name, name_length, &property, access_type);
}
/* }}} */
ZEND_API void zend_declare_property_stringl(zend_class_entry *ce, const char *name, size_t name_length, const char *value, size_t value_len, int access_type) /* {{{ */
{
zval property;
ZVAL_NEW_STR(&property, zend_string_init(value, value_len, ce->type & ZEND_INTERNAL_CLASS));
zend_declare_property(ce, name, name_length, &property, access_type);
}
/* }}} */
ZEND_API zend_class_constant *zend_declare_typed_class_constant(zend_class_entry *ce, zend_string *name, zval *value, int flags, zend_string *doc_comment, zend_type type) /* {{{ */
{
zend_class_constant *c;
if (ce->ce_flags & ZEND_ACC_INTERFACE) {
if (!(flags & ZEND_ACC_PUBLIC)) {
zend_error_noreturn(E_COMPILE_ERROR, "Access type for interface constant %s::%s must be public", ZSTR_VAL(ce->name), ZSTR_VAL(name));
}
}
if (zend_string_equals_ci(name, ZSTR_KNOWN(ZEND_STR_CLASS))) {
zend_error_noreturn(ce->type == ZEND_INTERNAL_CLASS ? E_CORE_ERROR : E_COMPILE_ERROR,
"A class constant must not be called 'class'; it is reserved for class name fetching");
}
if (Z_TYPE_P(value) == IS_STRING && !ZSTR_IS_INTERNED(Z_STR_P(value))) {
zval_make_interned_string(value);
}
if (ce->type == ZEND_INTERNAL_CLASS) {
c = pemalloc(sizeof(zend_class_constant), 1);
if (ZEND_TYPE_PURE_MASK(type) != MAY_BE_ANY) {
ZEND_ASSERT(!ZEND_TYPE_CONTAINS_CODE(type, IS_RESOURCE) && "resource is not allowed in a zend_type");
}
} else {
c = zend_arena_alloc(&CG(arena), sizeof(zend_class_constant));
}
ZVAL_COPY_VALUE(&c->value, value);
ZEND_CLASS_CONST_FLAGS(c) = flags;
c->doc_comment = doc_comment;
c->attributes = NULL;
c->ce = ce;
c->type = type;
if (Z_TYPE_P(value) == IS_CONSTANT_AST) {
ce->ce_flags &= ~ZEND_ACC_CONSTANTS_UPDATED;
ce->ce_flags |= ZEND_ACC_HAS_AST_CONSTANTS;
if (ce->type == ZEND_INTERNAL_CLASS && !ZEND_MAP_PTR(ce->mutable_data)) {
ZEND_MAP_PTR_NEW(ce->mutable_data);
}
}
if (!zend_hash_add_ptr(&ce->constants_table, name, c)) {
zend_error_noreturn(ce->type == ZEND_INTERNAL_CLASS ? E_CORE_ERROR : E_COMPILE_ERROR,
"Cannot redefine class constant %s::%s", ZSTR_VAL(ce->name), ZSTR_VAL(name));
}
return c;
}
ZEND_API zend_class_constant *zend_declare_class_constant_ex(zend_class_entry *ce, zend_string *name, zval *value, int flags, zend_string *doc_comment)
{
return zend_declare_typed_class_constant(ce, name, value, flags, doc_comment, (zend_type) ZEND_TYPE_INIT_NONE(0));
}
ZEND_API void zend_declare_class_constant(zend_class_entry *ce, const char *name, size_t name_length, zval *value) /* {{{ */
{
zend_string *key;
if (ce->type == ZEND_INTERNAL_CLASS) {
key = zend_string_init_interned(name, name_length, 1);
} else {
key = zend_string_init(name, name_length, 0);
}
zend_declare_class_constant_ex(ce, key, value, ZEND_ACC_PUBLIC, NULL);
zend_string_release(key);
}
/* }}} */
ZEND_API void zend_declare_class_constant_null(zend_class_entry *ce, const char *name, size_t name_length) /* {{{ */
{
zval constant;
ZVAL_NULL(&constant);
zend_declare_class_constant(ce, name, name_length, &constant);
}
/* }}} */
ZEND_API void zend_declare_class_constant_long(zend_class_entry *ce, const char *name, size_t name_length, zend_long value) /* {{{ */
{
zval constant;
ZVAL_LONG(&constant, value);
zend_declare_class_constant(ce, name, name_length, &constant);
}
/* }}} */
ZEND_API void zend_declare_class_constant_bool(zend_class_entry *ce, const char *name, size_t name_length, bool value) /* {{{ */
{
zval constant;
ZVAL_BOOL(&constant, value);
zend_declare_class_constant(ce, name, name_length, &constant);
}
/* }}} */
ZEND_API void zend_declare_class_constant_double(zend_class_entry *ce, const char *name, size_t name_length, double value) /* {{{ */
{
zval constant;
ZVAL_DOUBLE(&constant, value);
zend_declare_class_constant(ce, name, name_length, &constant);
}
/* }}} */
ZEND_API void zend_declare_class_constant_stringl(zend_class_entry *ce, const char *name, size_t name_length, const char *value, size_t value_length) /* {{{ */
{
zval constant;
ZVAL_NEW_STR(&constant, zend_string_init(value, value_length, ce->type & ZEND_INTERNAL_CLASS));
zend_declare_class_constant(ce, name, name_length, &constant);
}
/* }}} */
ZEND_API void zend_declare_class_constant_string(zend_class_entry *ce, const char *name, size_t name_length, const char *value) /* {{{ */
{
zend_declare_class_constant_stringl(ce, name, name_length, value, strlen(value));
}
/* }}} */
ZEND_API void zend_update_property_ex(zend_class_entry *scope, zend_object *object, zend_string *name, zval *value) /* {{{ */
{
zend_class_entry *old_scope = EG(fake_scope);
EG(fake_scope) = scope;
object->handlers->write_property(object, name, value, NULL);
EG(fake_scope) = old_scope;
}
/* }}} */
ZEND_API void zend_update_property(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, zval *value) /* {{{ */
{
zend_string *property;
zend_class_entry *old_scope = EG(fake_scope);
EG(fake_scope) = scope;
property = zend_string_init(name, name_length, 0);
object->handlers->write_property(object, property, value, NULL);
zend_string_release_ex(property, 0);
EG(fake_scope) = old_scope;
}
/* }}} */
ZEND_API void zend_update_property_null(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length) /* {{{ */
{
zval tmp;
ZVAL_NULL(&tmp);
zend_update_property(scope, object, name, name_length, &tmp);
}
/* }}} */
ZEND_API void zend_unset_property(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length) /* {{{ */
{
zend_string *property;
zend_class_entry *old_scope = EG(fake_scope);
EG(fake_scope) = scope;
property = zend_string_init(name, name_length, 0);
object->handlers->unset_property(object, property, 0);
zend_string_release_ex(property, 0);
EG(fake_scope) = old_scope;
}
/* }}} */
ZEND_API void zend_update_property_bool(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, zend_long value) /* {{{ */
{
zval tmp;
ZVAL_BOOL(&tmp, value);
zend_update_property(scope, object, name, name_length, &tmp);
}
/* }}} */
ZEND_API void zend_update_property_long(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, zend_long value) /* {{{ */
{
zval tmp;
ZVAL_LONG(&tmp, value);
zend_update_property(scope, object, name, name_length, &tmp);
}
/* }}} */
ZEND_API void zend_update_property_double(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, double value) /* {{{ */
{
zval tmp;
ZVAL_DOUBLE(&tmp, value);
zend_update_property(scope, object, name, name_length, &tmp);
}
/* }}} */
ZEND_API void zend_update_property_str(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, zend_string *value) /* {{{ */
{
zval tmp;
ZVAL_STR(&tmp, value);
zend_update_property(scope, object, name, name_length, &tmp);
}
/* }}} */
ZEND_API void zend_update_property_string(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, const char *value) /* {{{ */
{
zval tmp;
ZVAL_STRING(&tmp, value);
Z_SET_REFCOUNT(tmp, 0);
zend_update_property(scope, object, name, name_length, &tmp);
}
/* }}} */
ZEND_API void zend_update_property_stringl(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, const char *value, size_t value_len) /* {{{ */
{
zval tmp;
ZVAL_STRINGL(&tmp, value, value_len);
Z_SET_REFCOUNT(tmp, 0);
zend_update_property(scope, object, name, name_length, &tmp);
}
/* }}} */
ZEND_API zend_result zend_update_static_property_ex(zend_class_entry *scope, zend_string *name, zval *value) /* {{{ */
{
zval *property, tmp;
zend_property_info *prop_info;
zend_class_entry *old_scope = EG(fake_scope);
if (UNEXPECTED(!(scope->ce_flags & ZEND_ACC_CONSTANTS_UPDATED))) {
if (UNEXPECTED(zend_update_class_constants(scope) != SUCCESS)) {
return FAILURE;
}
}
EG(fake_scope) = scope;
property = zend_std_get_static_property_with_info(scope, name, BP_VAR_W, &prop_info);
EG(fake_scope) = old_scope;
if (!property) {
return FAILURE;
}
ZEND_ASSERT(!Z_ISREF_P(value));
Z_TRY_ADDREF_P(value);
if (ZEND_TYPE_IS_SET(prop_info->type)) {
ZVAL_COPY_VALUE(&tmp, value);
if (!zend_verify_property_type(prop_info, &tmp, /* strict */ 0)) {
Z_TRY_DELREF_P(value);
return FAILURE;
}
value = &tmp;
}
zend_assign_to_variable(property, value, IS_TMP_VAR, /* strict */ 0);
return SUCCESS;
}
/* }}} */
ZEND_API zend_result zend_update_static_property(zend_class_entry *scope, const char *name, size_t name_length, zval *value) /* {{{ */
{
zend_string *key = zend_string_init(name, name_length, 0);
zend_result retval = zend_update_static_property_ex(scope, key, value);
zend_string_efree(key);
return retval;
}
/* }}} */
ZEND_API zend_result zend_update_static_property_null(zend_class_entry *scope, const char *name, size_t name_length) /* {{{ */
{
zval tmp;
ZVAL_NULL(&tmp);
return zend_update_static_property(scope, name, name_length, &tmp);
}
/* }}} */
ZEND_API zend_result zend_update_static_property_bool(zend_class_entry *scope, const char *name, size_t name_length, zend_long value) /* {{{ */
{
zval tmp;
ZVAL_BOOL(&tmp, value);
return zend_update_static_property(scope, name, name_length, &tmp);
}
/* }}} */
ZEND_API zend_result zend_update_static_property_long(zend_class_entry *scope, const char *name, size_t name_length, zend_long value) /* {{{ */
{
zval tmp;
ZVAL_LONG(&tmp, value);
return zend_update_static_property(scope, name, name_length, &tmp);
}
/* }}} */
ZEND_API zend_result zend_update_static_property_double(zend_class_entry *scope, const char *name, size_t name_length, double value) /* {{{ */
{
zval tmp;
ZVAL_DOUBLE(&tmp, value);
return zend_update_static_property(scope, name, name_length, &tmp);
}
/* }}} */
ZEND_API zend_result zend_update_static_property_string(zend_class_entry *scope, const char *name, size_t name_length, const char *value) /* {{{ */
{
zval tmp;
ZVAL_STRING(&tmp, value);
Z_SET_REFCOUNT(tmp, 0);
return zend_update_static_property(scope, name, name_length, &tmp);
}
/* }}} */
ZEND_API zend_result zend_update_static_property_stringl(zend_class_entry *scope, const char *name, size_t name_length, const char *value, size_t value_len) /* {{{ */
{
zval tmp;
ZVAL_STRINGL(&tmp, value, value_len);
Z_SET_REFCOUNT(tmp, 0);
return zend_update_static_property(scope, name, name_length, &tmp);
}
/* }}} */
ZEND_API zval *zend_read_property_ex(zend_class_entry *scope, zend_object *object, zend_string *name, bool silent, zval *rv) /* {{{ */
{
zval *value;
zend_class_entry *old_scope = EG(fake_scope);
EG(fake_scope) = scope;
value = object->handlers->read_property(object, name, silent?BP_VAR_IS:BP_VAR_R, NULL, rv);
EG(fake_scope) = old_scope;
return value;
}
/* }}} */
ZEND_API zval *zend_read_property(zend_class_entry *scope, zend_object *object, const char *name, size_t name_length, bool silent, zval *rv) /* {{{ */
{
zval *value;
zend_string *str;
str = zend_string_init(name, name_length, 0);
value = zend_read_property_ex(scope, object, str, silent, rv);
zend_string_release_ex(str, 0);
return value;
}
/* }}} */
ZEND_API zval *zend_read_static_property_ex(zend_class_entry *scope, zend_string *name, bool silent) /* {{{ */
{
zval *property;
zend_class_entry *old_scope = EG(fake_scope);
EG(fake_scope) = scope;
property = zend_std_get_static_property(scope, name, silent ? BP_VAR_IS : BP_VAR_R);
EG(fake_scope) = old_scope;
return property;
}
/* }}} */
ZEND_API zval *zend_read_static_property(zend_class_entry *scope, const char *name, size_t name_length, bool silent) /* {{{ */
{
zend_string *key = zend_string_init(name, name_length, 0);
zval *property = zend_read_static_property_ex(scope, key, silent);
zend_string_efree(key);
return property;
}
/* }}} */
ZEND_API void zend_save_error_handling(zend_error_handling *current) /* {{{ */
{
current->handling = EG(error_handling);
current->exception = EG(exception_class);
}
/* }}} */
ZEND_API void zend_replace_error_handling(zend_error_handling_t error_handling, zend_class_entry *exception_class, zend_error_handling *current) /* {{{ */
{
if (current) {
zend_save_error_handling(current);
}
ZEND_ASSERT(error_handling == EH_THROW || exception_class == NULL);
EG(error_handling) = error_handling;
EG(exception_class) = exception_class;
}
/* }}} */
ZEND_API void zend_restore_error_handling(zend_error_handling *saved) /* {{{ */
{
EG(error_handling) = saved->handling;
EG(exception_class) = saved->exception;
}
/* }}} */
ZEND_API ZEND_COLD const char *zend_get_object_type_case(const zend_class_entry *ce, bool upper_case) /* {{{ */
{
if (ce->ce_flags & ZEND_ACC_TRAIT) {
return upper_case ? "Trait" : "trait";
} else if (ce->ce_flags & ZEND_ACC_INTERFACE) {
return upper_case ? "Interface" : "interface";
} else if (ce->ce_flags & ZEND_ACC_ENUM) {
return upper_case ? "Enum" : "enum";
} else {
return upper_case ? "Class" : "class";
}
}
/* }}} */
ZEND_API bool zend_is_iterable(const zval *iterable) /* {{{ */
{
switch (Z_TYPE_P(iterable)) {
case IS_ARRAY:
return 1;
case IS_OBJECT:
return zend_class_implements_interface(Z_OBJCE_P(iterable), zend_ce_traversable);
default:
return 0;
}
}
/* }}} */
ZEND_API bool zend_is_countable(const zval *countable) /* {{{ */
{
switch (Z_TYPE_P(countable)) {
case IS_ARRAY:
return 1;
case IS_OBJECT:
if (Z_OBJ_HT_P(countable)->count_elements) {
return 1;
}
return zend_class_implements_interface(Z_OBJCE_P(countable), zend_ce_countable);
default:
return 0;
}
}
/* }}} */
static zend_result get_default_via_ast(zval *default_value_zval, const char *default_value) {
zend_ast *ast;
zend_arena *ast_arena;
zend_string *code = zend_string_concat3(
"<?php ", sizeof("<?php ") - 1, default_value, strlen(default_value), ";", 1);
ast = zend_compile_string_to_ast(code, &ast_arena, ZSTR_EMPTY_ALLOC());
zend_string_release(code);
if (!ast) {
return FAILURE;
}
zend_ast_list *statement_list = zend_ast_get_list(ast);
zend_ast **const_expr_ast_ptr = &statement_list->child[0];
zend_arena *original_ast_arena = CG(ast_arena);
uint32_t original_compiler_options = CG(compiler_options);
zend_file_context original_file_context;
CG(ast_arena) = ast_arena;
/* Disable constant substitution, to make getDefaultValueConstant() work. */
CG(compiler_options) |= ZEND_COMPILE_NO_CONSTANT_SUBSTITUTION | ZEND_COMPILE_NO_PERSISTENT_CONSTANT_SUBSTITUTION;
zend_file_context_begin(&original_file_context);
zend_const_expr_to_zval(default_value_zval, const_expr_ast_ptr, /* allow_dynamic */ true);
CG(ast_arena) = original_ast_arena;
CG(compiler_options) = original_compiler_options;
zend_file_context_end(&original_file_context);
zend_ast_destroy(ast);
zend_arena_destroy(ast_arena);
return SUCCESS;
}
static zend_string *try_parse_string(const char *str, size_t len, char quote) {
if (len == 0) {
return ZSTR_EMPTY_ALLOC();
}
for (size_t i = 0; i < len; i++) {
if (str[i] == '\\' || str[i] == quote) {
return NULL;
}
}
return zend_string_init(str, len, 0);
}
ZEND_API zend_result zend_get_default_from_internal_arg_info(
zval *default_value_zval, zend_internal_arg_info *arg_info)
{
const char *default_value = arg_info->default_value;
if (!default_value) {
return FAILURE;
}
/* Avoid going through the full AST machinery for some simple and common cases. */
size_t default_value_len = strlen(default_value);
zend_ulong lval;
if (default_value_len == sizeof("null")-1
&& !memcmp(default_value, "null", sizeof("null")-1)) {
ZVAL_NULL(default_value_zval);
return SUCCESS;
} else if (default_value_len == sizeof("true")-1
&& !memcmp(default_value, "true", sizeof("true")-1)) {
ZVAL_TRUE(default_value_zval);
return SUCCESS;
} else if (default_value_len == sizeof("false")-1
&& !memcmp(default_value, "false", sizeof("false")-1)) {
ZVAL_FALSE(default_value_zval);
return SUCCESS;
} else if (default_value_len >= 2
&& (default_value[0] == '\'' || default_value[0] == '"')
&& default_value[default_value_len - 1] == default_value[0]) {
zend_string *str = try_parse_string(
default_value + 1, default_value_len - 2, default_value[0]);
if (str) {
ZVAL_STR(default_value_zval, str);
return SUCCESS;
}
} else if (default_value_len == sizeof("[]")-1
&& !memcmp(default_value, "[]", sizeof("[]")-1)) {
ZVAL_EMPTY_ARRAY(default_value_zval);
return SUCCESS;
} else if (ZEND_HANDLE_NUMERIC_STR(default_value, default_value_len, lval)) {
ZVAL_LONG(default_value_zval, lval);
return SUCCESS;
}
#if 0
fprintf(stderr, "Evaluating %s via AST\n", default_value);
#endif
return get_default_via_ast(default_value_zval, default_value);
}
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