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<?php
namespace Jsq\CacheEncryption\Iron;
use Jsq\CacheEncryption\ItemDecorator as BaseItemDecorator;
use Jsq\Iron\Iron;
use Jsq\Iron\PasswordInterface;
use Jsq\Iron\Token;
use Psr\Cache\CacheItemInterface;
class ItemDecorator extends BaseItemDecorator
{
/** @var PasswordInterface */
private $password;
/** @var Iron */
private $iron;
/** @var Token|null */
private $token;
public function __construct(
CacheItemInterface $decorated,
PasswordInterface $password,
$cipher
) {
parent::__construct($decorated);
$this->password = $password;
$this->iron = new Iron($cipher);
}
public function get()
$this->setTokenFromDecorated();
return isset($this->token)
? $this->iron->decryptToken($this->token, $this->password)
: null;
protected function isDecryptable()
return isset($this->token);
protected function encrypt($data)
return (string) $this->iron->encrypt($this->password, $data);
private function setTokenFromDecorated()
if (empty($this->token)) {
try {
$this->token = Token::fromSealed(
$this->password,
$this->getDecorated()->get()
);
} catch (\Exception $e) {
// not a valid token!
jeskew /
psr6-encrypting-decorator
