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Merge pull request #21 from brianjmiller/master
setPayload flag and customized header properties
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,73 @@ | ||
<?php | ||
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namespace Namshi\JOSE; | ||
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/** | ||
* Class providing an easy to use JWS implementation. | ||
*/ | ||
class SimpleJWS extends JWS | ||
{ | ||
/** | ||
* Constructor | ||
* | ||
* @param array $header An associative array of headers. The value can be any type accepted by json_encode or a JSON serializable object | ||
* @see http://php.net/manual/en/function.json-encode.php | ||
* @see http://php.net/manual/en/jsonserializable.jsonserialize.php | ||
* @see https://tools.ietf.org/html/draft-ietf-jose-json-web-signature-41#section-4 | ||
* } | ||
*/ | ||
public function __construct($header = array()) | ||
{ | ||
if (!isset($header['typ'])) { | ||
$header['typ'] = 'JWS'; | ||
} | ||
parent::__construct($header); | ||
} | ||
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/** | ||
* Sets the payload of the current JWS with an issued at value in the 'iat' property. | ||
* | ||
* @param array $payload | ||
*/ | ||
public function setPayload(array $payload) | ||
{ | ||
if (!isset($payload['iat'])) { | ||
$now = new \DateTime('now'); | ||
$payload['iat'] = $now->format('U'); | ||
} | ||
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return parent::setPayload($payload); | ||
} | ||
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/** | ||
* Checks that the JWS has been signed with a valid private key by verifying it with a public $key | ||
* and the token is not expired. | ||
* | ||
* @param resource|string $key | ||
* @param string $algo The algorithms this JWS should be signed with. Use it if you want to restrict which algorithms you want to allow to be validated. | ||
* | ||
* @return bool | ||
*/ | ||
public function isValid($key, $algo = null) | ||
{ | ||
return $this->verify($key, $algo) && ! $this->isExpired(); | ||
} | ||
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/** | ||
* Checks whether the token is expired based on the 'exp' value. | ||
* | ||
* @return bool | ||
*/ | ||
protected function isExpired() | ||
{ | ||
$payload = $this->getPayload(); | ||
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if (isset($payload['exp']) && is_numeric($payload['exp'])) { | ||
$now = new \DateTime('now'); | ||
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return ($now->format('U') - $payload['exp']) > 0; | ||
} | ||
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return false; | ||
} | ||
} |
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