abstract class BaseMethod in DRD Agent 4.0.x

Provides base encryption method.

Hierarchy

• class \Drupal\drd_agent\Crypt\BaseMethod implements BaseMethodInterface

3 files declare their use of BaseMethod

MCrypt.php in src/Crypt/Method/MCrypt.php

OpenSSL.php in src/Crypt/Method/OpenSSL.php

TLS.php in src/Crypt/Method/TLS.php

File

src/Crypt/BaseMethod.php, line 13

Namespace

Drupal\drd_agent\Crypt

abstract class BaseMethod implements BaseMethodInterface {

  /**
   * @var \Symfony\Component\DependencyInjection\ContainerInterface
   */
  protected $container;

  /**
   * @var \Drupal\Core\Logger\LoggerChannelInterface
   */
  protected $logger;

  /**
   * BaseMethod constructor.
   *
   * @param \Symfony\Component\DependencyInjection\ContainerInterface $container
   */
  public function __construct(ContainerInterface $container) {
    $this->container = $container;

    /** @noinspection NullPointerExceptionInspection */
    $this->logger = $container
      ->get('logger.factory')
      ->get('DRD Agent');
  }

  /**
   * Callback to encrypt and decrypt files.
   *
   * @param string $mode
   *   This is "-e" to encrypt or "-d" to decrypt.
   * @param string $in
   *   Input filename.
   * @param string $out
   *   Output filename.
   *
   * @return int
   *   Exit code of the openssl command.
   */
  private function cryptFileExecute($mode, $in, $out) : int {
    $output = [];
    $cmd = [
      'openssl',
      $this
        ->getCipher(),
      $mode,
      '-a',
      '-salt',
      '-in',
      $in,
      '-out',
      $out,
      '-k',
      base64_encode($this
        ->getPassword()),
    ];
    exec(implode(' ', $cmd), $output, $ret);
    return $ret;
  }

  /**
   * {@inheritdoc}
   */
  public function encryptFile($filename) : string {
    if ($this
      ->getCipher()) {
      exec('openssl version', $output, $ret);
      if ($ret === 0) {
        $in = $filename;
        $filename .= '.openssl';
        if ($this
          ->cryptFileExecute('-e', $in, $filename) !== 0) {
          $filename = $in;
        }
      }
    }
    return $filename;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
BaseMethod::$container	protected	property
BaseMethod::$logger	protected	property
BaseMethod::cryptFileExecute	private	function	Callback to encrypt and decrypt files.
BaseMethod::encryptFile	public	function	Encrypt a file. Overrides BaseMethodInterface::encryptFile
BaseMethod::__construct	public	function	BaseMethod constructor.	2
BaseMethodInterface::decrypt	public	function	Decode, decrypt and unserialize arguments from the other end.	3
BaseMethodInterface::encrypt	public	function	Encrypt and encode any list of arguments.	3
BaseMethodInterface::getCipher	public	function	Get the selected cipher.	3
BaseMethodInterface::getCipherMethods	public	function	Get a list of available cipher methods.	3
BaseMethodInterface::getIv	public	function	Get an initialiation vector.	3
BaseMethodInterface::getLabel	public	function	Get the crypt method label.	3
BaseMethodInterface::getPassword	public	function	Get the password.	3
BaseMethodInterface::isAvailable	public	function	Find out if the crypt method is available.	3