interface/modules/zend_modules/library/Zend/Crypt/Symmetric/PaddingPluginManager.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\Crypt\Symmetric;
  11
  12 use Zend\ServiceManager\AbstractPluginManager;
  13
  14 /**
  15  * Plugin manager implementation for the padding adapter instances.
  16  *
  17  * Enforces that padding adapters retrieved are instances of
  18  * Padding\PaddingInterface. Additionally, it registers a number of default
  19  * padding adapters available.
  20  */
  21 class PaddingPluginManager extends AbstractPluginManager
  22 {
  23     /**
  24      * Default set of padding adapters
  25      *
  26      * @var array
  27      */
  28     protected $invokableClasses = array(
  29         'pkcs7' => 'Zend\Crypt\Symmetric\Padding\Pkcs7'
  30     );
  31
  32     /**
  33      * Do not share by default
  34      *
  35      * @var bool
  36      */
  37     protected $shareByDefault = false;
  38
  39     /**
  40      * Validate the plugin
  41      *
  42      * Checks that the padding adapter loaded is an instance of Padding\PaddingInterface.
  43      *
  44      * @param  mixed $plugin
  45      * @return void
  46      * @throws Exception\InvalidArgumentException if invalid
  47      */
  48     public function validatePlugin($plugin)
  49     {
  50         if ($plugin instanceof Padding\PaddingInterface) {
  51             // we're okay
  52             return;
  53         }
  54
  55         throw new Exception\InvalidArgumentException(sprintf(
  56             'Plugin of type %s is invalid; must implement %s\Padding\PaddingInterface',
  57             (is_object($plugin) ? get_class($plugin) : gettype($plugin)),
  58             __NAMESPACE__
  59         ));
  60     }
  61 }