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<?php |
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namespace Jsq\CacheEncryption; |
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use Psr\Cache\CacheItemInterface; |
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abstract class ItemDecorator implements CacheItemInterface |
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{ |
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/** @var string */ |
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private $cipher; |
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/** @var mixed */ |
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private $decrypted; |
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/** @var CacheItemInterface */ |
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private $decorated; |
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375 |
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public function __construct($cipher, CacheItemInterface $decorated) |
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{ |
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$this->cipher = $cipher; |
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$this->decorated = $decorated; |
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375 |
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} |
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264 |
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public function getKey() |
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{ |
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return $this->decorated->getKey(); |
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} |
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/** |
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* @return CacheItemInterface |
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*/ |
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public function getDecorated() |
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{ |
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return $this->decorated; |
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} |
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public function set($value) |
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{ |
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$this->decorated->set($this->encrypt($value)); |
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$this->decrypted = $value; |
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return $this; |
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} |
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public function get() |
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{ |
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if (empty($this->decrypted) && $this->isHit()) { |
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$this->decrypted = $this->decrypt($this->getDecorated()->get()); |
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} |
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return $this->decrypted; |
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} |
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288 |
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public function isHit() |
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{ |
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return $this->decorated->isHit() |
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&& $this->isDecryptable(); |
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} |
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public function expiresAt($expiresAt) |
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{ |
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$this->decorated->expiresAt($expiresAt); |
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return $this; |
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} |
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public function expiresAfter($expiresAfter) |
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{ |
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$this->decorated->expiresAfter($expiresAfter); |
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return $this; |
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} |
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258 |
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protected function generateIv() |
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{ |
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return random_bytes(openssl_cipher_iv_length($this->cipher)); |
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} |
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protected function encryptString($string, $key, $iv) |
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{ |
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return openssl_encrypt($string, $this->cipher, $key, 0, $iv); |
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} |
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protected function decryptString($string, $method, $key, $iv) |
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{ |
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return openssl_decrypt($string, $method, $key, 0, $iv); |
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} |
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protected function getCipherMethod() |
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{ |
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return $this->cipher; |
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} |
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/** |
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* @param $data |
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* |
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* @return EncryptedValue |
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*/ |
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abstract protected function encrypt($data); |
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/** |
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* @param EncryptedValue $data |
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* |
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* @return mixed |
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*/ |
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abstract protected function decrypt($data); |
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/** |
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* @return bool |
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*/ |
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abstract protected function isDecryptable(); |
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} |
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jeskew /
psr6-encrypting-decorator
