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   1  <?php
   2  /* SVN FILE: $Id: acl_base.php 4409 2007-02-02 13:20:59Z phpnut $ */
   3  /**
   4   * Access Control List abstract class.
   5   *
   6   * Long description for file
   7   *
   8   * PHP versions 4 and 5
   9   *
  10   * CakePHP(tm) :  Rapid Development Framework <http://www.cakephp.org/>
  11   * Copyright 2005-2007, Cake Software Foundation, Inc.
  12   *                                1785 E. Sahara Avenue, Suite 490-204
  13   *                                Las Vegas, Nevada 89104
  14   *
  15   * Licensed under The MIT License
  16   * Redistributions of files must retain the above copyright notice.
  17   *
  18   * @filesource
  19   * @copyright        Copyright 2005-2007, Cake Software Foundation, Inc.
  20   * @link                http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
  21   * @package            cake
  22   * @subpackage        cake.cake.libs.controller.components
  23   * @since            CakePHP(tm) v 0.10.0.1232
  24   * @version            $Revision: 4409 $
  25   * @modifiedby        $LastChangedBy: phpnut $
  26   * @lastmodified    $Date: 2007-02-02 07:20:59 -0600 (Fri, 02 Feb 2007) $
  27   * @license            http://www.opensource.org/licenses/mit-license.php The MIT License
  28   */
  29  /**
  30   * Access Control List abstract class. Not to be instantiated.
  31   * Subclasses of this class are used by AclComponent to perform ACL checks in Cake.
  32   *
  33   * @package     cake
  34   * @subpackage    cake.cake.libs.controller.components
  35   * @abstract
  36   */
  37  class AclBase{
  38  /**
  39   * This class should never be instantiated, just subclassed.
  40   *
  41   * No instantiations or constructor calls (even statically)
  42   *
  43   * @return AclBase
  44   * @abstract
  45   */
  46  	function AclBase() {
  47          if (strcasecmp(get_class($this), "AclBase") == 0 || !is_subclass_of($this, "AclBase")) {
  48              trigger_error("[acl_base] The AclBase class constructor has been called, or the class was instantiated. This class must remain abstract. Please refer to the Cake docs for ACL configuration.", E_USER_ERROR);
  49              return null;
  50          }
  51      }
  52  /**
  53   * Empty method to be overridden in subclasses
  54   *
  55   * @param string $aro
  56   * @param string $aco
  57   * @param string $action
  58   * @abstract
  59   */
  60  	function check($aro, $aco, $action = "*") {
  61      }
  62  }
  63  ?>