Files
jerryscript/jerry-port/default/default-promise.c
T
Péter Gál 1623c8db1e Limit the string size in jerry_port_track_promise_rejection (#4603)
The maximum Promise reject reason string is now limited to a 5 kib string.

JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.usz@partner.samsung.com
2021-02-24 09:14:14 +01:00

49 lines
2.1 KiB
C

/* Copyright JS Foundation and other contributors, http://js.foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "jerryscript-port.h"
/**
* Default implementation of jerry_port_track_promise_rejection.
* Prints the reason of the unhandled rejections.
*/
void
jerry_port_track_promise_rejection (const jerry_value_t promise, /**< rejected promise */
const jerry_promise_rejection_operation_t operation) /**< operation */
{
(void) operation; /* unused */
const jerry_size_t max_allowed_size = 5 * 1024 - 1;
jerry_value_t reason = jerry_get_promise_result (promise);
jerry_value_t reason_to_string = jerry_value_to_string (reason);
jerry_release_value (reason);
jerry_length_t end_pos = jerry_get_utf8_string_length (reason_to_string);
jerry_size_t string_size = jerry_get_utf8_string_size (reason_to_string);
jerry_size_t buffer_size = (string_size < max_allowed_size) ? string_size : max_allowed_size;
JERRY_VLA (jerry_char_t, str_buf_p, buffer_size + 1);
jerry_size_t copied = jerry_substring_to_utf8_char_buffer (reason_to_string,
0,
end_pos,
str_buf_p,
buffer_size);
str_buf_p[copied] = '\0';
jerry_release_value (reason_to_string);
jerry_port_log (JERRY_LOG_LEVEL_WARNING, "Uncaught (in promise) %s\n", str_buf_p);
} /* jerry_port_track_promise_rejection */