FirebaseJwt.php

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<?php
 
namespace OAuth2\Encryption;
 
class FirebaseJwt implements EncryptionInterface
{
    public function __construct()
    {
        if (!class_exists('\JWT')) {
            throw new \ErrorException('firebase/php-jwt must be installed to use this feature. You can do this by running "composer require firebase/php-jwt"');
        }
    }
 
    public function encode($payload, $key, $alg = 'HS256', $keyId = null)
    {
        return \JWT::encode($payload, $key, $alg, $keyId);
    }
 
    public function decode($jwt, $key = null, $allowedAlgorithms = null)
    {
        try {
 
            //Maintain BC: Do not verify if no algorithms are passed in.
            if (!$allowedAlgorithms) {
                $key = null;
            }
 
            return (array)\JWT::decode($jwt, $key, $allowedAlgorithms);
        } catch (\Exception $e) {
            return false;
        }
    }
 
    public function urlSafeB64Encode($data)
    {
        return \JWT::urlsafeB64Encode($data);
    }
 
    public function urlSafeB64Decode($b64)
    {
        return \JWT::urlsafeB64Decode($b64);
    }
}