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<?php /** * This file is part of Lcobucci\JWT, a simple library to handle JWT and JWS * * @license http://opensource.org/licenses/BSD-3-Clause BSD-3-Clause */ namespace Lcobucci\JWT\Parsing; use RuntimeException; /** * Class that decodes data according with the specs of RFC-4648 * * @author Luís Otávio Cobucci Oblonczyk <[email protected]> * @since 0.1.0 * * @link http://tools.ietf.org/html/rfc4648#section-5 */ class Decoder { /** * Decodes from JSON, validating the errors (will return an associative array * instead of objects) * * @param string $json * @return mixed * * @throws RuntimeException When something goes wrong while decoding */ public function jsonDecode($json) { $data = json_decode($json); if (json_last_error() != JSON_ERROR_NONE) { throw new RuntimeException('Error while decoding to JSON: ' . json_last_error_msg()); } return $data; } /** * Decodes from base64url * * @param string $data * @return string */ public function base64UrlDecode($data) { if ($remainder = strlen($data) % 4) { $data .= str_repeat('=', 4 - $remainder); } return base64_decode(strtr($data, '-_', '+/')); } }