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<?php
/*
* This file is part of jwt-auth.
*
* (c) Sean Tymon <tymon148@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Tymon\JWTAuth\Providers\JWT;
use Exception;
use Namshi\JOSE\JWS;
use Tymon\JWTAuth\Exceptions\JWTException;
use Tymon\JWTAuth\Exceptions\TokenInvalidException;
class NamshiAdapter extends JWTProvider implements JWTInterface
{
/**
* @var \Namshi\JOSE\JWS
*/
protected $jws;
/**
* @param string $secret
* @param string $algo
* @param null $driver
*/
public function __construct($secret, $algo, $driver = null)
{
parent::__construct($secret, $algo);
$this->jws = $driver ?: new JWS(['typ' => 'JWT', 'alg' => $algo]);
}
/**
* Create a JSON Web Token.
*
* @return string
* @throws \Tymon\JWTAuth\Exceptions\JWTException
*/
public function encode(array $payload)
{
try {
$this->jws->setPayload($payload)->sign($this->secret);
return $this->jws->getTokenString();
} catch (Exception $e) {
throw new JWTException('Could not create token: '.$e->getMessage());
}
}
/**
* Decode a JSON Web Token.
*
* @param string $token
* @return array
* @throws \Tymon\JWTAuth\Exceptions\JWTException
*/
public function decode($token)
{
try {
$jws = JWS::load($token);
} catch (Exception $e) {
throw new TokenInvalidException('Could not decode token: '.$e->getMessage());
}
if (! $jws->verify($this->secret, $this->algo)) {
throw new TokenInvalidException('Token Signature could not be verified.');
}
return $jws->getPayload();
}
}
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