Viewing file:  SimpleJWS.php (2.19 KB) -rw-r--r--
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<?php
namespace Namshi\JOSE;
/**
* 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(), $encryptionEngine = 'OpenSSL')
{
if (!isset($header['typ'])) {
$header['typ'] = 'JWS';
}
parent::__construct($header, $encryptionEngine);
}
/**
* Sets the payload of the current JWS with an issued at value in the 'iat' property.
*
* @param array $payload
*
* @return $this
*/
public function setPayload(array $payload)
{
if (!isset($payload['iat'])) {
$payload['iat'] = time();
}
return parent::setPayload($payload);
}
/**
* 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();
}
/**
* Checks whether the token is expired based on the 'exp' value.
*it.
*
* @return bool
*/
public function isExpired()
{
$payload = $this->getPayload();
if (isset($payload['exp'])) {
$now = new \DateTime('now');
if (is_int($payload['exp'])) {
return ($now->getTimestamp() - $payload['exp']) > 0;
}
if (is_numeric($payload['exp'])) {
return ($now->format('U') - $payload['exp']) > 0;
}
}
return false;
}
}
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