PrivateKey.php 1.09 KB
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<?php

namespace Drupal\Core;

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use Drupal\Core\State\StateInterface;
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use Drupal\Component\Utility\Crypt;

/**
 * Manages the Drupal private key.
 */
class PrivateKey {

  /**
   * The state service.
   *
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   * @var \Drupal\Core\State\StateInterface
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   */
  protected $state;

  /**
   * Constructs the token generator.
   *
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   * @param \Drupal\Core\State\StateInterface $state
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   *   The state service.
   */
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  public function __construct(StateInterface $state) {
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    $this->state = $state;
  }

  /**
   * Gets the private key.
   *
   * @return string
   *   The private key.
   */
  public function get() {
    if (!$key = $this->state->get('system.private_key')) {
      $key = $this->create();
      $this->set($key);
    }

    return $key;
  }

  /**
   * Sets the private key.
   *
   * @param string $key
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   *   The private key to set.
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   */
  public function set($key) {
    return $this->state->set('system.private_key', $key);
  }

  /**
   * Creates a new private key.
   *
   * @return string
   *   The private key.
   */
  protected function create() {
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    return Crypt::randomBytesBase64(55);
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  }

}