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   1  <?php
   2  /**
   3   * BlogUserManager class file
   4   *
   5   * @author Qiang Xue <qiang.xue@gmail.com>
   6   * @link http://www.pradosoft.com/
   7   * @copyright Copyright &copy; 2006 PradoSoft
   8   * @license http://www.pradosoft.com/license/
   9   * @version $Id: BlogUserManager.php 1397 2006-09-07 07:55:53Z wei $
  10   */
  11  
  12  Prado::using('System.Security.IUserManager');
  13  Prado::using('Application.Common.BlogUser');
  14  
  15  /**
  16   * BlogUserManager class
  17   *
  18   * @author Qiang Xue <qiang.xue@gmail.com>
  19   * @link http://www.pradosoft.com/
  20   * @copyright Copyright &copy; 2006 PradoSoft
  21   * @license http://www.pradosoft.com/license/
  22   */
  23  class BlogUserManager extends TModule implements IUserManager
  24  {
  25  	public function getGuestName()
  26      {
  27          return 'Guest';
  28      }
  29  
  30      /**
  31       * Returns a user instance given the user name.
  32       * @param string user name, null if it is a guest.
  33       * @return TUser the user instance, null if the specified username is not in the user database.
  34       */
  35  	public function getUser($username=null)
  36      {
  37          if($username===null)
  38              return new BlogUser($this);
  39          else
  40          {
  41              $username=strtolower($username);
  42              $db=$this->Application->getModule('data');
  43              if(($userRecord=$db->queryUserByName($username))!==null)
  44              {
  45                  $user=new BlogUser($this);
  46                  $user->setID($userRecord->ID);
  47                  $user->setName($username);
  48                  $user->setIsGuest(false);
  49                  $user->setRoles($userRecord->Role===UserRecord::ROLE_USER?'user':'admin');
  50                  return $user;
  51              }
  52              else
  53                  return null;
  54          }
  55      }
  56  
  57      /**
  58       * Validates if the username and password are correct.
  59       * @param string user name
  60       * @param string password
  61       * @return boolean true if validation is successful, false otherwise.
  62       */
  63  	public function validateUser($username,$password)
  64      {
  65          $db=$this->Application->getModule('data');
  66          if(($userRecord=$db->queryUserByName($username))!==null)
  67              return $userRecord->Password===md5($password) && $userRecord->Status===UserRecord::STATUS_NORMAL;
  68          else
  69              return false;
  70      }
  71  }
  72  
  73  ?>