Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\Core;
Chris@0: 
Chris@0: use Drupal\Core\State\StateInterface;
Chris@0: use Drupal\Component\Utility\Crypt;
Chris@0: 
Chris@0: /**
Chris@0:  * Manages the Drupal private key.
Chris@0:  */
Chris@0: class PrivateKey {
Chris@0: 
Chris@0:   /**
Chris@0:    * The state service.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\State\StateInterface
Chris@0:    */
Chris@0:   protected $state;
Chris@0: 
Chris@0:   /**
Chris@0:    * Constructs the token generator.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\State\StateInterface $state
Chris@0:    *   The state service.
Chris@0:    */
Chris@0:   public function __construct(StateInterface $state) {
Chris@0:     $this->state = $state;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Gets the private key.
Chris@0:    *
Chris@0:    * @return string
Chris@0:    *   The private key.
Chris@0:    */
Chris@0:   public function get() {
Chris@0:     if (!$key = $this->state->get('system.private_key')) {
Chris@0:       $key = $this->create();
Chris@0:       $this->set($key);
Chris@0:     }
Chris@0: 
Chris@0:     return $key;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Sets the private key.
Chris@0:    *
Chris@0:    * @param string $key
Chris@0:    *   The private key to set.
Chris@0:    */
Chris@0:   public function set($key) {
Chris@0:     return $this->state->set('system.private_key', $key);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Creates a new private key.
Chris@0:    *
Chris@0:    * @return string
Chris@0:    *   The private key.
Chris@0:    */
Chris@0:   protected function create() {
Chris@0:     return Crypt::randomBytesBase64(55);
Chris@0:   }
Chris@0: 
Chris@0: }