mirror of
https://github.com/php/php-src.git
synced 2024-12-16 05:15:03 +08:00
11aee73572
These exceptions should not invoke the user error handler, and not cause bailing of the request. Fixes GH-11601 Closes GH-11608
1041 lines
32 KiB
C
1041 lines
32 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andi Gutmans <andi@php.net> |
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| Marcus Boerger <helly@php.net> |
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| Sterling Hughes <sterling@php.net> |
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| Zeev Suraski <zeev@php.net> |
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+----------------------------------------------------------------------+
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*/
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#include "zend.h"
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#include "zend_API.h"
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#include "zend_builtin_functions.h"
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#include "zend_interfaces.h"
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#include "zend_exceptions.h"
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#include "zend_vm.h"
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#include "zend_dtrace.h"
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#include "zend_smart_str.h"
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#include "zend_exceptions_arginfo.h"
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#include "zend_observer.h"
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ZEND_API zend_class_entry *zend_ce_throwable;
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ZEND_API zend_class_entry *zend_ce_exception;
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ZEND_API zend_class_entry *zend_ce_error_exception;
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ZEND_API zend_class_entry *zend_ce_error;
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ZEND_API zend_class_entry *zend_ce_compile_error;
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ZEND_API zend_class_entry *zend_ce_parse_error;
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ZEND_API zend_class_entry *zend_ce_type_error;
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ZEND_API zend_class_entry *zend_ce_argument_count_error;
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ZEND_API zend_class_entry *zend_ce_value_error;
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ZEND_API zend_class_entry *zend_ce_arithmetic_error;
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ZEND_API zend_class_entry *zend_ce_division_by_zero_error;
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ZEND_API zend_class_entry *zend_ce_unhandled_match_error;
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|
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/* Internal pseudo-exception that is not exposed to userland. Throwing this exception *does not* execute finally blocks. */
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static zend_class_entry zend_ce_unwind_exit;
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/* Internal pseudo-exception that is not exposed to userland. Throwing this exception *does* execute finally blocks. */
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static zend_class_entry zend_ce_graceful_exit;
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ZEND_API void (*zend_throw_exception_hook)(zend_object *ex);
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static zend_object_handlers default_exception_handlers;
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|
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/* {{{ zend_implement_throwable */
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static int zend_implement_throwable(zend_class_entry *interface, zend_class_entry *class_type)
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{
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/* zend_ce_exception and zend_ce_error may not be initialized yet when this is called (e.g when
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* implementing Throwable for Exception itself). Perform a manual inheritance check. */
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zend_class_entry *root = class_type;
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while (root->parent) {
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root = root->parent;
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}
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if (zend_string_equals_literal(root->name, "Exception")
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|| zend_string_equals_literal(root->name, "Error")) {
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return SUCCESS;
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}
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bool can_extend = (class_type->ce_flags & ZEND_ACC_ENUM) == 0;
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zend_error_noreturn(E_ERROR,
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can_extend
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? "%s %s cannot implement interface %s, extend Exception or Error instead"
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: "%s %s cannot implement interface %s",
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zend_get_object_type_uc(class_type),
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ZSTR_VAL(class_type->name),
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ZSTR_VAL(interface->name));
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return FAILURE;
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}
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/* }}} */
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static inline zend_class_entry *i_get_exception_base(zend_object *object) /* {{{ */
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{
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return instanceof_function(object->ce, zend_ce_exception) ? zend_ce_exception : zend_ce_error;
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}
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/* }}} */
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ZEND_API zend_class_entry *zend_get_exception_base(zend_object *object) /* {{{ */
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{
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return i_get_exception_base(object);
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}
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/* }}} */
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void zend_exception_set_previous(zend_object *exception, zend_object *add_previous) /* {{{ */
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{
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zval *previous, *ancestor, *ex;
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zval pv, zv, rv;
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zend_class_entry *base_ce;
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if (!exception || !add_previous) {
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return;
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}
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if (exception == add_previous || zend_is_unwind_exit(add_previous) || zend_is_graceful_exit(add_previous)) {
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OBJ_RELEASE(add_previous);
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return;
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}
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ZEND_ASSERT(instanceof_function(add_previous->ce, zend_ce_throwable)
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&& "Previous exception must implement Throwable");
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ZVAL_OBJ(&pv, add_previous);
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ZVAL_OBJ(&zv, exception);
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ex = &zv;
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do {
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ancestor = zend_read_property_ex(i_get_exception_base(add_previous), add_previous, ZSTR_KNOWN(ZEND_STR_PREVIOUS), 1, &rv);
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while (Z_TYPE_P(ancestor) == IS_OBJECT) {
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if (Z_OBJ_P(ancestor) == Z_OBJ_P(ex)) {
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OBJ_RELEASE(add_previous);
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return;
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}
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ancestor = zend_read_property_ex(i_get_exception_base(Z_OBJ_P(ancestor)), Z_OBJ_P(ancestor), ZSTR_KNOWN(ZEND_STR_PREVIOUS), 1, &rv);
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}
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base_ce = i_get_exception_base(Z_OBJ_P(ex));
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previous = zend_read_property_ex(base_ce, Z_OBJ_P(ex), ZSTR_KNOWN(ZEND_STR_PREVIOUS), 1, &rv);
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if (Z_TYPE_P(previous) == IS_NULL) {
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zend_update_property_ex(base_ce, Z_OBJ_P(ex), ZSTR_KNOWN(ZEND_STR_PREVIOUS), &pv);
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GC_DELREF(add_previous);
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return;
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}
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ex = previous;
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} while (Z_OBJ_P(ex) != add_previous);
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}
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/* }}} */
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void zend_exception_save(void) /* {{{ */
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{
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if (EG(prev_exception)) {
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zend_exception_set_previous(EG(exception), EG(prev_exception));
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}
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if (EG(exception)) {
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EG(prev_exception) = EG(exception);
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}
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EG(exception) = NULL;
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}
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/* }}} */
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void zend_exception_restore(void) /* {{{ */
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{
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if (EG(prev_exception)) {
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if (EG(exception)) {
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zend_exception_set_previous(EG(exception), EG(prev_exception));
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} else {
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EG(exception) = EG(prev_exception);
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}
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EG(prev_exception) = NULL;
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}
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}
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/* }}} */
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static zend_always_inline bool is_handle_exception_set(void) {
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zend_execute_data *execute_data = EG(current_execute_data);
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return !execute_data
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|| !execute_data->func
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|| !ZEND_USER_CODE(execute_data->func->common.type)
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|| execute_data->opline->opcode == ZEND_HANDLE_EXCEPTION;
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}
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ZEND_API ZEND_COLD void zend_throw_exception_internal(zend_object *exception) /* {{{ */
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{
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#ifdef HAVE_DTRACE
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if (DTRACE_EXCEPTION_THROWN_ENABLED()) {
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if (exception != NULL) {
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DTRACE_EXCEPTION_THROWN(ZSTR_VAL(exception->ce->name));
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} else {
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DTRACE_EXCEPTION_THROWN(NULL);
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}
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}
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#endif /* HAVE_DTRACE */
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if (exception != NULL) {
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zend_object *previous = EG(exception);
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if (previous && zend_is_unwind_exit(previous)) {
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/* Don't replace unwinding exception with different exception. */
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OBJ_RELEASE(exception);
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return;
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}
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zend_exception_set_previous(exception, EG(exception));
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EG(exception) = exception;
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if (previous) {
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ZEND_ASSERT(is_handle_exception_set() && "HANDLE_EXCEPTION not set?");
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return;
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}
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}
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if (!EG(current_execute_data)) {
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if (exception && (exception->ce == zend_ce_parse_error || exception->ce == zend_ce_compile_error)) {
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return;
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}
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if (EG(exception)) {
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if (Z_TYPE(EG(user_exception_handler)) != IS_UNDEF
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&& !zend_is_unwind_exit(EG(exception))
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&& !zend_is_graceful_exit(EG(exception))) {
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zend_user_exception_handler();
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if (EG(exception)) {
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zend_exception_error(EG(exception), E_ERROR);
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}
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return;
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} else {
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zend_exception_error(EG(exception), E_ERROR);
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}
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zend_bailout();
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}
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zend_error_noreturn(E_CORE_ERROR, "Exception thrown without a stack frame");
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}
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if (zend_throw_exception_hook) {
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zend_throw_exception_hook(exception);
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}
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if (is_handle_exception_set()) {
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/* no need to rethrow the exception */
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return;
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}
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EG(opline_before_exception) = EG(current_execute_data)->opline;
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EG(current_execute_data)->opline = EG(exception_op);
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}
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/* }}} */
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ZEND_API void zend_clear_exception(void) /* {{{ */
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{
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zend_object *exception;
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if (EG(prev_exception)) {
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OBJ_RELEASE(EG(prev_exception));
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EG(prev_exception) = NULL;
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}
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if (!EG(exception)) {
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return;
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}
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/* exception may have destructor */
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exception = EG(exception);
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EG(exception) = NULL;
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OBJ_RELEASE(exception);
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if (EG(current_execute_data)) {
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EG(current_execute_data)->opline = EG(opline_before_exception);
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}
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#if ZEND_DEBUG
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EG(opline_before_exception) = NULL;
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#endif
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}
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/* }}} */
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static zend_object *zend_default_exception_new(zend_class_entry *class_type) /* {{{ */
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{
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zval tmp;
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zval trace;
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zend_class_entry *base_ce;
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zend_string *filename;
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zend_object *object = zend_objects_new(class_type);
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object_properties_init(object, class_type);
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if (EG(current_execute_data)) {
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zend_fetch_debug_backtrace(&trace,
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0,
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EG(exception_ignore_args) ? DEBUG_BACKTRACE_IGNORE_ARGS : 0, 0);
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} else {
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array_init(&trace);
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}
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Z_SET_REFCOUNT(trace, 0);
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base_ce = i_get_exception_base(object);
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if (EXPECTED((class_type != zend_ce_parse_error && class_type != zend_ce_compile_error)
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|| !(filename = zend_get_compiled_filename()))) {
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ZVAL_STRING(&tmp, zend_get_executed_filename());
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zend_update_property_ex(base_ce, object, ZSTR_KNOWN(ZEND_STR_FILE), &tmp);
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zval_ptr_dtor(&tmp);
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ZVAL_LONG(&tmp, zend_get_executed_lineno());
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zend_update_property_ex(base_ce, object, ZSTR_KNOWN(ZEND_STR_LINE), &tmp);
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} else {
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ZVAL_STR(&tmp, filename);
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zend_update_property_ex(base_ce, object, ZSTR_KNOWN(ZEND_STR_FILE), &tmp);
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ZVAL_LONG(&tmp, zend_get_compiled_lineno());
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zend_update_property_ex(base_ce, object, ZSTR_KNOWN(ZEND_STR_LINE), &tmp);
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}
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zend_update_property_ex(base_ce, object, ZSTR_KNOWN(ZEND_STR_TRACE), &trace);
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return object;
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}
|
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/* }}} */
|
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|
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/* {{{ Clone the exception object */
|
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ZEND_COLD ZEND_METHOD(Exception, __clone)
|
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{
|
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/* Should never be executable */
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zend_throw_exception(NULL, "Cannot clone object using __clone()", 0);
|
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}
|
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/* }}} */
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|
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/* {{{ Exception constructor */
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ZEND_METHOD(Exception, __construct)
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{
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zend_string *message = NULL;
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zend_long code = 0;
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zval tmp, *object, *previous = NULL;
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zend_class_entry *base_ce;
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object = ZEND_THIS;
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base_ce = i_get_exception_base(Z_OBJ_P(object));
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if (zend_parse_parameters(ZEND_NUM_ARGS(), "|SlO!", &message, &code, &previous, zend_ce_throwable) == FAILURE) {
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RETURN_THROWS();
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}
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|
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if (message) {
|
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ZVAL_STR(&tmp, message);
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zend_update_property_ex(base_ce, Z_OBJ_P(object), ZSTR_KNOWN(ZEND_STR_MESSAGE), &tmp);
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}
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if (code) {
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ZVAL_LONG(&tmp, code);
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zend_update_property_ex(base_ce, Z_OBJ_P(object), ZSTR_KNOWN(ZEND_STR_CODE), &tmp);
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}
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if (previous) {
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zend_update_property_ex(base_ce, Z_OBJ_P(object), ZSTR_KNOWN(ZEND_STR_PREVIOUS), previous);
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}
|
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}
|
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/* }}} */
|
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|
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/* {{{ Exception unserialize checks */
|
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#define CHECK_EXC_TYPE(id, type) \
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pvalue = zend_read_property_ex(i_get_exception_base(Z_OBJ_P(object)), Z_OBJ_P(object), ZSTR_KNOWN(id), 1, &value); \
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if (Z_TYPE_P(pvalue) != IS_NULL && Z_TYPE_P(pvalue) != type) { \
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zend_unset_property(i_get_exception_base(Z_OBJ_P(object)), Z_OBJ_P(object), ZSTR_VAL(ZSTR_KNOWN(id)), ZSTR_LEN(ZSTR_KNOWN(id))); \
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}
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|
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ZEND_METHOD(Exception, __wakeup)
|
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{
|
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ZEND_PARSE_PARAMETERS_NONE();
|
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|
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zval value, *pvalue;
|
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zval *object = ZEND_THIS;
|
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CHECK_EXC_TYPE(ZEND_STR_MESSAGE, IS_STRING);
|
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CHECK_EXC_TYPE(ZEND_STR_CODE, IS_LONG);
|
|
/* The type of all other properties is enforced through typed properties. */
|
|
}
|
|
/* }}} */
|
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|
|
/* {{{ ErrorException constructor */
|
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ZEND_METHOD(ErrorException, __construct)
|
|
{
|
|
zend_string *message = NULL, *filename = NULL;
|
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zend_long code = 0, severity = E_ERROR, lineno;
|
|
bool lineno_is_null = 1;
|
|
zval tmp, *object, *previous = NULL;
|
|
|
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if (zend_parse_parameters(ZEND_NUM_ARGS(), "|SllS!l!O!", &message, &code, &severity, &filename, &lineno, &lineno_is_null, &previous, zend_ce_throwable) == FAILURE) {
|
|
RETURN_THROWS();
|
|
}
|
|
|
|
object = ZEND_THIS;
|
|
|
|
if (message) {
|
|
ZVAL_STR_COPY(&tmp, message);
|
|
zend_update_property_ex(zend_ce_exception, Z_OBJ_P(object), ZSTR_KNOWN(ZEND_STR_MESSAGE), &tmp);
|
|
zval_ptr_dtor(&tmp);
|
|
}
|
|
|
|
if (code) {
|
|
ZVAL_LONG(&tmp, code);
|
|
zend_update_property_ex(zend_ce_exception, Z_OBJ_P(object), ZSTR_KNOWN(ZEND_STR_CODE), &tmp);
|
|
}
|
|
|
|
if (previous) {
|
|
zend_update_property_ex(zend_ce_exception, Z_OBJ_P(object), ZSTR_KNOWN(ZEND_STR_PREVIOUS), previous);
|
|
}
|
|
|
|
ZVAL_LONG(&tmp, severity);
|
|
zend_update_property_ex(zend_ce_exception, Z_OBJ_P(object), ZSTR_KNOWN(ZEND_STR_SEVERITY), &tmp);
|
|
|
|
if (filename) {
|
|
ZVAL_STR_COPY(&tmp, filename);
|
|
zend_update_property_ex(zend_ce_exception, Z_OBJ_P(object), ZSTR_KNOWN(ZEND_STR_FILE), &tmp);
|
|
zval_ptr_dtor(&tmp);
|
|
}
|
|
|
|
if (!lineno_is_null) {
|
|
ZVAL_LONG(&tmp, lineno);
|
|
zend_update_property_ex(zend_ce_exception, Z_OBJ_P(object), ZSTR_KNOWN(ZEND_STR_LINE), &tmp);
|
|
} else if (filename) {
|
|
ZVAL_LONG(&tmp, 0);
|
|
zend_update_property_ex(zend_ce_exception, Z_OBJ_P(object), ZSTR_KNOWN(ZEND_STR_LINE), &tmp);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
#define GET_PROPERTY(object, id) \
|
|
zend_read_property_ex(i_get_exception_base(Z_OBJ_P(object)), Z_OBJ_P(object), ZSTR_KNOWN(id), 0, &rv)
|
|
#define GET_PROPERTY_SILENT(object, id) \
|
|
zend_read_property_ex(i_get_exception_base(Z_OBJ_P(object)), Z_OBJ_P(object), ZSTR_KNOWN(id), 1, &rv)
|
|
|
|
/* {{{ Get the file in which the exception occurred */
|
|
ZEND_METHOD(Exception, getFile)
|
|
{
|
|
zval *prop, rv;
|
|
|
|
ZEND_PARSE_PARAMETERS_NONE();
|
|
|
|
prop = GET_PROPERTY(ZEND_THIS, ZEND_STR_FILE);
|
|
RETURN_STR(zval_get_string(prop));
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ Get the line in which the exception occurred */
|
|
ZEND_METHOD(Exception, getLine)
|
|
{
|
|
zval *prop, rv;
|
|
|
|
ZEND_PARSE_PARAMETERS_NONE();
|
|
|
|
prop = GET_PROPERTY(ZEND_THIS, ZEND_STR_LINE);
|
|
RETURN_LONG(zval_get_long(prop));
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ Get the exception message */
|
|
ZEND_METHOD(Exception, getMessage)
|
|
{
|
|
zval *prop, rv;
|
|
|
|
ZEND_PARSE_PARAMETERS_NONE();
|
|
|
|
prop = GET_PROPERTY(ZEND_THIS, ZEND_STR_MESSAGE);
|
|
RETURN_STR(zval_get_string(prop));
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ Get the exception code */
|
|
ZEND_METHOD(Exception, getCode)
|
|
{
|
|
zval *prop, rv;
|
|
|
|
ZEND_PARSE_PARAMETERS_NONE();
|
|
|
|
prop = GET_PROPERTY(ZEND_THIS, ZEND_STR_CODE);
|
|
ZVAL_DEREF(prop);
|
|
ZVAL_COPY(return_value, prop);
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ Get the stack trace for the location in which the exception occurred */
|
|
ZEND_METHOD(Exception, getTrace)
|
|
{
|
|
zval *prop, rv;
|
|
|
|
ZEND_PARSE_PARAMETERS_NONE();
|
|
|
|
prop = GET_PROPERTY(ZEND_THIS, ZEND_STR_TRACE);
|
|
ZVAL_DEREF(prop);
|
|
ZVAL_COPY(return_value, prop);
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ Get the exception severity */
|
|
ZEND_METHOD(ErrorException, getSeverity)
|
|
{
|
|
zval *prop, rv;
|
|
|
|
ZEND_PARSE_PARAMETERS_NONE();
|
|
|
|
prop = GET_PROPERTY(ZEND_THIS, ZEND_STR_SEVERITY);
|
|
ZVAL_DEREF(prop);
|
|
ZVAL_COPY(return_value, prop);
|
|
}
|
|
/* }}} */
|
|
|
|
#define TRACE_APPEND_KEY(key) do { \
|
|
tmp = zend_hash_find(ht, key); \
|
|
if (tmp) { \
|
|
if (Z_TYPE_P(tmp) != IS_STRING) { \
|
|
zend_error(E_WARNING, "Value for %s is not a string", \
|
|
ZSTR_VAL(key)); \
|
|
smart_str_appends(str, "[unknown]"); \
|
|
} else { \
|
|
smart_str_appends(str, Z_STRVAL_P(tmp)); \
|
|
} \
|
|
} \
|
|
} while (0)
|
|
|
|
static void _build_trace_args(zval *arg, smart_str *str) /* {{{ */
|
|
{
|
|
/* the trivial way would be to do
|
|
* convert_to_string(arg);
|
|
* append it and kill the now tmp arg.
|
|
* but that could cause some E_NOTICE and also damn long lines.
|
|
*/
|
|
|
|
ZVAL_DEREF(arg);
|
|
|
|
if (Z_TYPE_P(arg) <= IS_STRING) {
|
|
smart_str_append_scalar(str, arg, EG(exception_string_param_max_len));
|
|
smart_str_appends(str, ", ");
|
|
} else {
|
|
switch (Z_TYPE_P(arg)) {
|
|
case IS_RESOURCE:
|
|
smart_str_appends(str, "Resource id #");
|
|
smart_str_append_long(str, Z_RES_HANDLE_P(arg));
|
|
smart_str_appends(str, ", ");
|
|
break;
|
|
case IS_ARRAY:
|
|
smart_str_appends(str, "Array, ");
|
|
break;
|
|
case IS_OBJECT: {
|
|
zend_string *class_name = Z_OBJ_HANDLER_P(arg, get_class_name)(Z_OBJ_P(arg));
|
|
smart_str_appends(str, "Object(");
|
|
smart_str_appends(str, ZSTR_VAL(class_name));
|
|
smart_str_appends(str, "), ");
|
|
zend_string_release_ex(class_name, 0);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
static void _build_trace_string(smart_str *str, HashTable *ht, uint32_t num) /* {{{ */
|
|
{
|
|
zval *file, *tmp;
|
|
|
|
smart_str_appendc(str, '#');
|
|
smart_str_append_long(str, num);
|
|
smart_str_appendc(str, ' ');
|
|
|
|
file = zend_hash_find_known_hash(ht, ZSTR_KNOWN(ZEND_STR_FILE));
|
|
if (file) {
|
|
if (Z_TYPE_P(file) != IS_STRING) {
|
|
zend_error(E_WARNING, "File name is not a string");
|
|
smart_str_appends(str, "[unknown file]: ");
|
|
} else{
|
|
zend_long line = 0;
|
|
tmp = zend_hash_find_known_hash(ht, ZSTR_KNOWN(ZEND_STR_LINE));
|
|
if (tmp) {
|
|
if (Z_TYPE_P(tmp) == IS_LONG) {
|
|
line = Z_LVAL_P(tmp);
|
|
} else {
|
|
zend_error(E_WARNING, "Line is not an int");
|
|
}
|
|
}
|
|
smart_str_append(str, Z_STR_P(file));
|
|
smart_str_appendc(str, '(');
|
|
smart_str_append_long(str, line);
|
|
smart_str_appends(str, "): ");
|
|
}
|
|
} else {
|
|
smart_str_appends(str, "[internal function]: ");
|
|
}
|
|
TRACE_APPEND_KEY(ZSTR_KNOWN(ZEND_STR_CLASS));
|
|
TRACE_APPEND_KEY(ZSTR_KNOWN(ZEND_STR_TYPE));
|
|
TRACE_APPEND_KEY(ZSTR_KNOWN(ZEND_STR_FUNCTION));
|
|
smart_str_appendc(str, '(');
|
|
tmp = zend_hash_find_known_hash(ht, ZSTR_KNOWN(ZEND_STR_ARGS));
|
|
if (tmp) {
|
|
if (Z_TYPE_P(tmp) == IS_ARRAY) {
|
|
size_t last_len = ZSTR_LEN(str->s);
|
|
zend_string *name;
|
|
zval *arg;
|
|
|
|
ZEND_HASH_FOREACH_STR_KEY_VAL(Z_ARRVAL_P(tmp), name, arg) {
|
|
if (name) {
|
|
smart_str_append(str, name);
|
|
smart_str_appends(str, ": ");
|
|
}
|
|
_build_trace_args(arg, str);
|
|
} ZEND_HASH_FOREACH_END();
|
|
|
|
if (last_len != ZSTR_LEN(str->s)) {
|
|
ZSTR_LEN(str->s) -= 2; /* remove last ', ' */
|
|
}
|
|
} else {
|
|
zend_error(E_WARNING, "args element is not an array");
|
|
}
|
|
}
|
|
smart_str_appends(str, ")\n");
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API zend_string *zend_trace_to_string(HashTable *trace, bool include_main) {
|
|
zend_ulong index;
|
|
zval *frame;
|
|
uint32_t num = 0;
|
|
smart_str str = {0};
|
|
|
|
ZEND_HASH_FOREACH_NUM_KEY_VAL(trace, index, frame) {
|
|
if (Z_TYPE_P(frame) != IS_ARRAY) {
|
|
zend_error(E_WARNING, "Expected array for frame " ZEND_ULONG_FMT, index);
|
|
continue;
|
|
}
|
|
|
|
_build_trace_string(&str, Z_ARRVAL_P(frame), num++);
|
|
} ZEND_HASH_FOREACH_END();
|
|
|
|
if (include_main) {
|
|
smart_str_appendc(&str, '#');
|
|
smart_str_append_long(&str, num);
|
|
smart_str_appends(&str, " {main}");
|
|
}
|
|
|
|
smart_str_0(&str);
|
|
return str.s ? str.s : ZSTR_EMPTY_ALLOC();
|
|
}
|
|
|
|
/* {{{ Obtain the backtrace for the exception as a string (instead of an array) */
|
|
ZEND_METHOD(Exception, getTraceAsString)
|
|
{
|
|
|
|
ZEND_PARSE_PARAMETERS_NONE();
|
|
|
|
zval *object = ZEND_THIS;
|
|
zend_class_entry *base_ce = i_get_exception_base(Z_OBJ_P(object));
|
|
zval rv;
|
|
zval *trace = zend_read_property_ex(base_ce, Z_OBJ_P(object), ZSTR_KNOWN(ZEND_STR_TRACE), 1, &rv);
|
|
if (EG(exception)) {
|
|
RETURN_THROWS();
|
|
}
|
|
|
|
/* Type should be guaranteed by property type. */
|
|
ZEND_ASSERT(Z_TYPE_P(trace) == IS_ARRAY);
|
|
RETURN_NEW_STR(zend_trace_to_string(Z_ARRVAL_P(trace), /* include_main */ true));
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ Return previous Throwable or NULL. */
|
|
ZEND_METHOD(Exception, getPrevious)
|
|
{
|
|
zval rv;
|
|
|
|
ZEND_PARSE_PARAMETERS_NONE();
|
|
|
|
ZVAL_COPY(return_value, GET_PROPERTY_SILENT(ZEND_THIS, ZEND_STR_PREVIOUS));
|
|
} /* }}} */
|
|
|
|
/* {{{ Obtain the string representation of the Exception object */
|
|
ZEND_METHOD(Exception, __toString)
|
|
{
|
|
zval trace, *exception;
|
|
zend_class_entry *base_ce;
|
|
zend_string *str;
|
|
zend_fcall_info fci;
|
|
zval rv, tmp;
|
|
zend_string *fname;
|
|
|
|
ZEND_PARSE_PARAMETERS_NONE();
|
|
|
|
str = ZSTR_EMPTY_ALLOC();
|
|
|
|
exception = ZEND_THIS;
|
|
fname = ZSTR_INIT_LITERAL("gettraceasstring", 0);
|
|
|
|
while (exception && Z_TYPE_P(exception) == IS_OBJECT && instanceof_function(Z_OBJCE_P(exception), zend_ce_throwable)) {
|
|
zend_string *prev_str = str;
|
|
zend_string *message = zval_get_string(GET_PROPERTY(exception, ZEND_STR_MESSAGE));
|
|
zend_string *file = zval_get_string(GET_PROPERTY(exception, ZEND_STR_FILE));
|
|
zend_long line = zval_get_long(GET_PROPERTY(exception, ZEND_STR_LINE));
|
|
|
|
fci.size = sizeof(fci);
|
|
ZVAL_STR(&fci.function_name, fname);
|
|
fci.object = Z_OBJ_P(exception);
|
|
fci.retval = &trace;
|
|
fci.param_count = 0;
|
|
fci.params = NULL;
|
|
fci.named_params = NULL;
|
|
|
|
zend_call_function(&fci, NULL);
|
|
|
|
if (Z_TYPE(trace) != IS_STRING) {
|
|
zval_ptr_dtor(&trace);
|
|
ZVAL_UNDEF(&trace);
|
|
}
|
|
|
|
if ((Z_OBJCE_P(exception) == zend_ce_type_error || Z_OBJCE_P(exception) == zend_ce_argument_count_error) && strstr(ZSTR_VAL(message), ", called in ")) {
|
|
zval message_zv;
|
|
ZVAL_STR(&message_zv, message);
|
|
zend_string *real_message = zend_strpprintf_unchecked(0, "%Z and defined", &message_zv);
|
|
zend_string_release_ex(message, 0);
|
|
message = real_message;
|
|
}
|
|
|
|
zend_string *tmp_trace = (Z_TYPE(trace) == IS_STRING && Z_STRLEN(trace))
|
|
? zend_string_copy(Z_STR(trace))
|
|
: ZSTR_INIT_LITERAL("#0 {main}\n", false);
|
|
|
|
zval name_zv, trace_zv, file_zv, prev_str_zv;
|
|
ZVAL_STR(&name_zv, Z_OBJCE_P(exception)->name);
|
|
ZVAL_STR(&trace_zv, tmp_trace);
|
|
ZVAL_STR(&file_zv, file);
|
|
ZVAL_STR(&prev_str_zv, prev_str);
|
|
|
|
if (ZSTR_LEN(message) > 0) {
|
|
zval message_zv;
|
|
ZVAL_STR(&message_zv, message);
|
|
|
|
str = zend_strpprintf_unchecked(0, "%Z: %Z in %Z:" ZEND_LONG_FMT "\nStack trace:\n%Z%s%Z",
|
|
&name_zv, &message_zv, &file_zv, line,
|
|
&trace_zv, ZSTR_LEN(prev_str) ? "\n\nNext " : "", &prev_str_zv);
|
|
} else {
|
|
str = zend_strpprintf_unchecked(0, "%Z in %Z:" ZEND_LONG_FMT "\nStack trace:\n%Z%s%Z",
|
|
&name_zv, &file_zv, line,
|
|
&trace_zv, ZSTR_LEN(prev_str) ? "\n\nNext " : "", &prev_str_zv);
|
|
}
|
|
zend_string_release_ex(tmp_trace, false);
|
|
|
|
zend_string_release_ex(prev_str, 0);
|
|
zend_string_release_ex(message, 0);
|
|
zend_string_release_ex(file, 0);
|
|
zval_ptr_dtor(&trace);
|
|
|
|
Z_PROTECT_RECURSION_P(exception);
|
|
exception = GET_PROPERTY(exception, ZEND_STR_PREVIOUS);
|
|
if (exception && Z_TYPE_P(exception) == IS_OBJECT && Z_IS_RECURSIVE_P(exception)) {
|
|
break;
|
|
}
|
|
}
|
|
zend_string_release_ex(fname, 0);
|
|
|
|
exception = ZEND_THIS;
|
|
/* Reset apply counts */
|
|
while (exception && Z_TYPE_P(exception) == IS_OBJECT && (base_ce = i_get_exception_base(Z_OBJ_P(exception))) && instanceof_function(Z_OBJCE_P(exception), base_ce)) {
|
|
if (Z_IS_RECURSIVE_P(exception)) {
|
|
Z_UNPROTECT_RECURSION_P(exception);
|
|
} else {
|
|
break;
|
|
}
|
|
exception = GET_PROPERTY(exception, ZEND_STR_PREVIOUS);
|
|
}
|
|
|
|
exception = ZEND_THIS;
|
|
base_ce = i_get_exception_base(Z_OBJ_P(exception));
|
|
|
|
/* We store the result in the private property string so we can access
|
|
* the result in uncaught exception handlers without memleaks. */
|
|
ZVAL_STR(&tmp, str);
|
|
zend_update_property_ex(base_ce, Z_OBJ_P(exception), ZSTR_KNOWN(ZEND_STR_STRING), &tmp);
|
|
|
|
RETURN_STR(str);
|
|
}
|
|
/* }}} */
|
|
|
|
static void zend_init_exception_class_entry(zend_class_entry *ce) {
|
|
ce->create_object = zend_default_exception_new;
|
|
ce->default_object_handlers = &default_exception_handlers;
|
|
}
|
|
|
|
void zend_register_default_exception(void) /* {{{ */
|
|
{
|
|
zend_ce_throwable = register_class_Throwable(zend_ce_stringable);
|
|
zend_ce_throwable->interface_gets_implemented = zend_implement_throwable;
|
|
|
|
memcpy(&default_exception_handlers, &std_object_handlers, sizeof(zend_object_handlers));
|
|
default_exception_handlers.clone_obj = NULL;
|
|
|
|
zend_ce_exception = register_class_Exception(zend_ce_throwable);
|
|
zend_init_exception_class_entry(zend_ce_exception);
|
|
|
|
zend_ce_error_exception = register_class_ErrorException(zend_ce_exception);
|
|
zend_init_exception_class_entry(zend_ce_error_exception);
|
|
|
|
zend_ce_error = register_class_Error(zend_ce_throwable);
|
|
zend_init_exception_class_entry(zend_ce_error);
|
|
|
|
zend_ce_compile_error = register_class_CompileError(zend_ce_error);
|
|
zend_init_exception_class_entry(zend_ce_compile_error);
|
|
|
|
zend_ce_parse_error = register_class_ParseError(zend_ce_compile_error);
|
|
zend_init_exception_class_entry(zend_ce_parse_error);
|
|
|
|
zend_ce_type_error = register_class_TypeError(zend_ce_error);
|
|
zend_init_exception_class_entry(zend_ce_type_error);
|
|
|
|
zend_ce_argument_count_error = register_class_ArgumentCountError(zend_ce_type_error);
|
|
zend_init_exception_class_entry(zend_ce_argument_count_error);
|
|
|
|
zend_ce_value_error = register_class_ValueError(zend_ce_error);
|
|
zend_init_exception_class_entry(zend_ce_value_error);
|
|
|
|
zend_ce_arithmetic_error = register_class_ArithmeticError(zend_ce_error);
|
|
zend_init_exception_class_entry(zend_ce_arithmetic_error);
|
|
|
|
zend_ce_division_by_zero_error = register_class_DivisionByZeroError(zend_ce_arithmetic_error);
|
|
zend_init_exception_class_entry(zend_ce_division_by_zero_error);
|
|
|
|
zend_ce_unhandled_match_error = register_class_UnhandledMatchError(zend_ce_error);
|
|
zend_init_exception_class_entry(zend_ce_unhandled_match_error);
|
|
|
|
INIT_CLASS_ENTRY(zend_ce_unwind_exit, "UnwindExit", NULL);
|
|
|
|
INIT_CLASS_ENTRY(zend_ce_graceful_exit, "GracefulExit", NULL);
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ Deprecated - Use zend_ce_exception directly instead */
|
|
ZEND_API zend_class_entry *zend_exception_get_default(void)
|
|
{
|
|
return zend_ce_exception;
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ Deprecated - Use zend_ce_error_exception directly instead */
|
|
ZEND_API zend_class_entry *zend_get_error_exception(void)
|
|
{
|
|
return zend_ce_error_exception;
|
|
}
|
|
/* }}} */
|
|
|
|
static zend_object *zend_throw_exception_zstr(zend_class_entry *exception_ce, zend_string *message, zend_long code) /* {{{ */
|
|
{
|
|
zval ex, tmp;
|
|
|
|
if (!exception_ce) {
|
|
exception_ce = zend_ce_exception;
|
|
}
|
|
|
|
ZEND_ASSERT(instanceof_function(exception_ce, zend_ce_throwable)
|
|
&& "Exceptions must implement Throwable");
|
|
|
|
object_init_ex(&ex, exception_ce);
|
|
|
|
if (message) {
|
|
ZVAL_STR(&tmp, message);
|
|
zend_update_property_ex(exception_ce, Z_OBJ(ex), ZSTR_KNOWN(ZEND_STR_MESSAGE), &tmp);
|
|
}
|
|
if (code) {
|
|
ZVAL_LONG(&tmp, code);
|
|
zend_update_property_ex(exception_ce, Z_OBJ(ex), ZSTR_KNOWN(ZEND_STR_CODE), &tmp);
|
|
}
|
|
|
|
zend_throw_exception_internal(Z_OBJ(ex));
|
|
|
|
return Z_OBJ(ex);
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API ZEND_COLD zend_object *zend_throw_exception(zend_class_entry *exception_ce, const char *message, zend_long code) /* {{{ */
|
|
{
|
|
zend_string *msg_str = message ? zend_string_init(message, strlen(message), 0) : NULL;
|
|
zend_object *ex = zend_throw_exception_zstr(exception_ce, msg_str, code);
|
|
if (msg_str) {
|
|
zend_string_release(msg_str);
|
|
}
|
|
return ex;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API ZEND_COLD zend_object *zend_throw_exception_ex(zend_class_entry *exception_ce, zend_long code, const char *format, ...) /* {{{ */
|
|
{
|
|
va_list arg;
|
|
char *message;
|
|
zend_object *obj;
|
|
|
|
va_start(arg, format);
|
|
zend_vspprintf(&message, 0, format, arg);
|
|
va_end(arg);
|
|
obj = zend_throw_exception(exception_ce, message, code);
|
|
efree(message);
|
|
return obj;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API ZEND_COLD zend_object *zend_throw_error_exception(zend_class_entry *exception_ce, zend_string *message, zend_long code, int severity) /* {{{ */
|
|
{
|
|
zend_object *obj = zend_throw_exception_zstr(exception_ce, message, code);
|
|
if (exception_ce && instanceof_function(exception_ce, zend_ce_error_exception)) {
|
|
zval tmp;
|
|
ZVAL_LONG(&tmp, severity);
|
|
zend_update_property_ex(zend_ce_error_exception, obj, ZSTR_KNOWN(ZEND_STR_SEVERITY), &tmp);
|
|
}
|
|
return obj;
|
|
}
|
|
/* }}} */
|
|
|
|
static void zend_error_va(int type, zend_string *file, uint32_t lineno, const char *format, ...) /* {{{ */
|
|
{
|
|
va_list args;
|
|
va_start(args, format);
|
|
zend_string *message = zend_vstrpprintf(0, format, args);
|
|
zend_observer_error_notify(type, file, lineno, message);
|
|
zend_error_cb(type, file, lineno, message);
|
|
zend_string_release(message);
|
|
va_end(args);
|
|
}
|
|
/* }}} */
|
|
|
|
/* This function doesn't return if it uses E_ERROR */
|
|
ZEND_API ZEND_COLD zend_result zend_exception_error(zend_object *ex, int severity) /* {{{ */
|
|
{
|
|
zval exception, rv;
|
|
zend_class_entry *ce_exception;
|
|
zend_result result = FAILURE;
|
|
|
|
ZVAL_OBJ(&exception, ex);
|
|
ce_exception = ex->ce;
|
|
EG(exception) = NULL;
|
|
if (ce_exception == zend_ce_parse_error || ce_exception == zend_ce_compile_error) {
|
|
zend_string *message = zval_get_string(GET_PROPERTY(&exception, ZEND_STR_MESSAGE));
|
|
zend_string *file = zval_get_string(GET_PROPERTY_SILENT(&exception, ZEND_STR_FILE));
|
|
zend_long line = zval_get_long(GET_PROPERTY_SILENT(&exception, ZEND_STR_LINE));
|
|
int type = (ce_exception == zend_ce_parse_error ? E_PARSE : E_COMPILE_ERROR) | E_DONT_BAIL;
|
|
|
|
zend_observer_error_notify(type, file, line, message);
|
|
zend_error_cb(type, file, line, message);
|
|
|
|
zend_string_release_ex(file, 0);
|
|
zend_string_release_ex(message, 0);
|
|
} else if (instanceof_function(ce_exception, zend_ce_throwable)) {
|
|
zval tmp;
|
|
zend_string *str, *file = NULL;
|
|
zend_long line = 0;
|
|
|
|
zend_call_known_instance_method_with_0_params(ex->ce->__tostring, ex, &tmp);
|
|
if (!EG(exception)) {
|
|
if (Z_TYPE(tmp) != IS_STRING) {
|
|
zend_error(E_WARNING, "%s::__toString() must return a string", ZSTR_VAL(ce_exception->name));
|
|
} else {
|
|
zend_update_property_ex(i_get_exception_base(ex), ex, ZSTR_KNOWN(ZEND_STR_STRING), &tmp);
|
|
}
|
|
}
|
|
zval_ptr_dtor(&tmp);
|
|
|
|
if (EG(exception)) {
|
|
zval zv;
|
|
|
|
ZVAL_OBJ(&zv, EG(exception));
|
|
/* do the best we can to inform about the inner exception */
|
|
if (instanceof_function(ce_exception, zend_ce_exception) || instanceof_function(ce_exception, zend_ce_error)) {
|
|
file = zval_get_string(GET_PROPERTY_SILENT(&zv, ZEND_STR_FILE));
|
|
line = zval_get_long(GET_PROPERTY_SILENT(&zv, ZEND_STR_LINE));
|
|
}
|
|
|
|
zend_error_va(E_WARNING, (file && ZSTR_LEN(file) > 0) ? file : NULL, line,
|
|
"Uncaught %s in exception handling during call to %s::__toString()",
|
|
ZSTR_VAL(Z_OBJCE(zv)->name), ZSTR_VAL(ce_exception->name));
|
|
|
|
if (file) {
|
|
zend_string_release_ex(file, 0);
|
|
}
|
|
}
|
|
|
|
str = zval_get_string(GET_PROPERTY_SILENT(&exception, ZEND_STR_STRING));
|
|
file = zval_get_string(GET_PROPERTY_SILENT(&exception, ZEND_STR_FILE));
|
|
line = zval_get_long(GET_PROPERTY_SILENT(&exception, ZEND_STR_LINE));
|
|
|
|
zend_error_va(severity | E_DONT_BAIL,
|
|
(file && ZSTR_LEN(file) > 0) ? file : NULL, line,
|
|
"Uncaught %s\n thrown", ZSTR_VAL(str));
|
|
|
|
zend_string_release_ex(str, 0);
|
|
zend_string_release_ex(file, 0);
|
|
} else if (ce_exception == &zend_ce_unwind_exit || ce_exception == &zend_ce_graceful_exit) {
|
|
/* We successfully unwound, nothing more to do.
|
|
* We still return FAILURE in this case, as further execution should still be aborted. */
|
|
} else {
|
|
zend_error(severity, "Uncaught exception %s", ZSTR_VAL(ce_exception->name));
|
|
}
|
|
|
|
OBJ_RELEASE(ex);
|
|
return result;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_NORETURN void zend_exception_uncaught_error(const char *format, ...) {
|
|
va_list va;
|
|
va_start(va, format);
|
|
zend_string *prefix = zend_vstrpprintf(0, format, va);
|
|
va_end(va);
|
|
|
|
ZEND_ASSERT(EG(exception));
|
|
zval exception_zv;
|
|
ZVAL_OBJ_COPY(&exception_zv, EG(exception));
|
|
zend_clear_exception();
|
|
|
|
zend_string *exception_str = zval_get_string(&exception_zv);
|
|
zend_error_noreturn(E_ERROR,
|
|
"%s: Uncaught %s", ZSTR_VAL(prefix), ZSTR_VAL(exception_str));
|
|
}
|
|
|
|
ZEND_API ZEND_COLD void zend_throw_exception_object(zval *exception) /* {{{ */
|
|
{
|
|
if (exception == NULL || Z_TYPE_P(exception) != IS_OBJECT) {
|
|
zend_error_noreturn(E_CORE_ERROR, "Need to supply an object when throwing an exception");
|
|
}
|
|
|
|
zend_class_entry *exception_ce = Z_OBJCE_P(exception);
|
|
|
|
if (!exception_ce || !instanceof_function(exception_ce, zend_ce_throwable)) {
|
|
zend_throw_error(NULL, "Cannot throw objects that do not implement Throwable");
|
|
zval_ptr_dtor(exception);
|
|
return;
|
|
}
|
|
|
|
zend_throw_exception_internal(Z_OBJ_P(exception));
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API ZEND_COLD zend_object *zend_create_unwind_exit(void)
|
|
{
|
|
return zend_objects_new(&zend_ce_unwind_exit);
|
|
}
|
|
|
|
ZEND_API ZEND_COLD zend_object *zend_create_graceful_exit(void)
|
|
{
|
|
return zend_objects_new(&zend_ce_graceful_exit);
|
|
}
|
|
|
|
ZEND_API ZEND_COLD void zend_throw_unwind_exit(void)
|
|
{
|
|
ZEND_ASSERT(!EG(exception));
|
|
EG(exception) = zend_create_unwind_exit();
|
|
EG(opline_before_exception) = EG(current_execute_data)->opline;
|
|
EG(current_execute_data)->opline = EG(exception_op);
|
|
}
|
|
|
|
ZEND_API ZEND_COLD void zend_throw_graceful_exit(void)
|
|
{
|
|
ZEND_ASSERT(!EG(exception));
|
|
EG(exception) = zend_create_graceful_exit();
|
|
EG(opline_before_exception) = EG(current_execute_data)->opline;
|
|
EG(current_execute_data)->opline = EG(exception_op);
|
|
}
|
|
|
|
ZEND_API bool zend_is_unwind_exit(const zend_object *ex)
|
|
{
|
|
return ex->ce == &zend_ce_unwind_exit;
|
|
}
|
|
|
|
ZEND_API bool zend_is_graceful_exit(const zend_object *ex)
|
|
{
|
|
return ex->ce == &zend_ce_graceful_exit;
|
|
}
|