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<?php
namespace Bitrix\Main\Web;
use Bitrix\Main\ArgumentException;
class Json
{
public const DEFAULT_OPTIONS = JSON_HEX_TAG | JSON_HEX_AMP | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_UNESCAPED_UNICODE | JSON_INVALID_UTF8_SUBSTITUTE;
/**
* Returns a string containing the JSON representation of $data.
*
* @param mixed $data The value being encoded.
* @param int | null $options Bitmasked options. Default is JSON_HEX_TAG | JSON_HEX_AMP | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_UNESCAPED_UNICODE | JSON_INVALID_UTF8_SUBSTITUTE.
*
* @return mixed
* @throws ArgumentException
* @see json_encode
*/
public static function encode($data, $options = null)
{
if ($options === null)
{
$options = self::DEFAULT_OPTIONS;
}
try
{
$res = json_encode($data, $options | JSON_THROW_ON_ERROR);
}
catch (\JsonException $e)
{
self::checkException($e, $options);
}
return $res;
}
/**
* Takes a JSON encoded string and converts it into a PHP variable.
*
* @param string $data The json string being decoded.
*
* @return mixed
* @throws ArgumentException
* @see json_decode
*/
public static function decode($data)
{
try
{
$res = json_decode($data, true, 512, JSON_THROW_ON_ERROR);
}
catch (\JsonException $e)
{
self::checkException($e);
}
return $res;
}
/**
* Converts $data to UTF-8 charset.
*
* @deprecated Does nothing.
* @param mixed $data Input data.
* @return mixed
*/
protected static function convertData($data)
{
return $data;
}
/**
* Checks global error flag and raises exception if needed.
*
* @param \JsonException $exception
* @param integer $options Bitmasked options. When JSON_PARTIAL_OUTPUT_ON_ERROR passed no exception is raised.
*
* @return void
* @throws ArgumentException
*/
protected static function checkException(\JsonException $exception, $options = 0)
{
$e = $exception->getCode();
if ($e == JSON_ERROR_UTF8 && ($options & JSON_PARTIAL_OUTPUT_ON_ERROR))
{
return;
}
$message = sprintf('%s [%d]', $exception->getMessage(), $e);
self::throwException($message);
}
/**
* Throws exception with message given.
*
* @param string $e Exception message.
*
* @return void
* @throws ArgumentException
*/
protected static function throwException($e)
{
throw new ArgumentException('JSON error: ' . $e, 'data');
}
}