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<?php |
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namespace Jsq\CacheEncryption\Iron; |
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use DateInterval; |
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use DateTime; |
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use DateTimeInterface; |
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use Iron\Iron; |
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use Iron\PasswordInterface; |
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use Iron\Token; |
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use Psr\Cache\CacheItemInterface; |
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use Throwable; |
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class ItemDecorator implements CacheItemInterface |
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{ |
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/** @var PasswordInterface */ |
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private $password; |
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/** @var Iron */ |
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private $iron; |
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/** @var CacheItemInterface */ |
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private $decorated; |
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/** @var mixed */ |
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private $plaintext; |
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/** @var Token|null */ |
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private $token; |
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/** @var int|null */ |
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private $expiration; |
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View Code Duplication |
public function __construct( |
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CacheItemInterface $decorated, |
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PasswordInterface $password, |
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$cipher |
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) { |
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if (!class_exists(Iron::class)) { |
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// @codeCoverageIgnoreStart |
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throw new \RuntimeException('You must install' |
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. ' jsq/iron-php to use the Iron decorator.'); |
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// @codeCoverageIgnoreEnd |
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} |
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$this->decorated = $decorated; |
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$this->password = $password; |
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$this->iron = new Iron($cipher); |
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} |
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public function get() |
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{ |
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if ($this->plaintext) { |
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return $this->plaintext; |
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} |
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if ($this->tryToSetTokenFromDecorated()) { |
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return json_decode( |
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$this->iron->decryptToken($this->token, $this->password), |
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true |
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); |
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} |
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} |
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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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public function isHit() |
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{ |
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return $this->tryToSetTokenFromDecorated(); |
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} |
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public function expiresAfter($time) |
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{ |
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if ($time instanceof DateInterval) { |
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$this->expiration = (new DateTime)->add($time)->getTimestamp(); |
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} elseif (is_int($time)) { |
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$this->expiration = time() + $time; |
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} |
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$this->decorated->expiresAfter($time); |
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return $this; |
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} |
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public function expiresAt($expiration) |
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{ |
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if ($expiration instanceof DateTimeInterface) { |
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$this->expiration = $expiration->getTimestamp(); |
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} |
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$this->decorated->expiresAt($expiration); |
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return $this; |
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} |
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public function set($value) |
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{ |
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$this->plaintext = $value; |
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return $this; |
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} |
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public function getDecorated() |
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{ |
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return $this->decorated; |
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} |
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public function finalize() |
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{ |
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$this->decorated->set((string) $this->iron->encrypt( |
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$this->password, |
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json_encode($this->plaintext), |
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$this->expiration ? time() - $this->expiration : 0 |
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)); |
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} |
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/** |
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* @return bool |
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*/ |
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private function tryToSetTokenFromDecorated() |
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{ |
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if (empty($this->token)) { |
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try { |
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$this->token = Token::fromSealed( |
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$this->password, |
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$this->decorated->get() |
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); |
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} catch (Throwable $t) {} |
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} |
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return isset($this->token); |
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} |
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} |
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jeskew /
psr6-encrypting-decorator
Loading history...
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.