inc/classes/main/filter/verifier/class_AccountPasswordVerifierFilter.php

   1 <?php
   2 /**
   3  * A concrete filter for validating the password. This filter may intercept
   4  * the filter chain if no password is given or the password is invalid
   5  *
   6  * @author              Roland Haeder <webmaster@ship-simu.org>
   7  * @version             0.0.0
   8  * @copyright   Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2011 Core Developer Team
   9  * @license             GNU GPL 3.0 or any newer version
  10  * @link                http://www.ship-simu.org
  11  *
  12  * This program is free software: you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation, either version 3 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  24  */
  25 class AccountPasswordVerifierFilter extends BaseFilter implements Filterable {
  26         /**
  27          * Protected constructor
  28          *
  29          * @return      void
  30          */
  31         protected function __construct () {
  32                 // Call parent constructor
  33                 parent::__construct(__CLASS__);
  34         }
  35
  36         /**
  37          * Creates an instance of this filter class
  38          *
  39          * @return      $filterInstance                 An instance of this filter class
  40          */
  41         public static final function createAccountPasswordVerifierFilter () {
  42                 // Get a new instance
  43                 $filterInstance = new AccountPasswordVerifierFilter();
  44
  45                 // Return the instance
  46                 return $filterInstance;
  47         }
  48
  49         /**
  50          * Executes the filter with given request and response objects
  51          *
  52          * @param       $requestInstance        An instance of a class with an Requestable interface
  53          * @param       $responseInstance       An instance of a class with an Responseable interface
  54          * @return      void
  55          * @throws      AccountPasswordMismatchException        If the account password does not match
  56          * @throws      FilterChainException                            If this filter fails to operate
  57          * @todo        Rewrite handling of different password fields
  58          */
  59         public function execute (Requestable $requestInstance, Responseable $responseInstance) {
  60                 // Get password
  61                 $password = $requestInstance->getRequestElement('pass_old');
  62
  63                 // Is the password still not set?
  64                 if (is_null($password)) {
  65                         // Get password from alternative location
  66                         $password = $requestInstance->getRequestElement('password');
  67
  68                         // Is the password still not set?
  69                         if (is_null($password)) {
  70                                 // Not found in form so stop the filtering process
  71                                 $requestInstance->requestIsValid(false);
  72
  73                                 // Add a message to the response
  74                                 $responseInstance->addFatalMessage('password_unset');
  75
  76                                 // Abort here
  77                                 throw new FilterChainException($this, self::EXCEPTION_FILTER_CHAIN_INTERCEPTED);
  78                         } // END - if
  79                 } // END - if
  80
  81                 if (empty($password)) {
  82                         // Password is empty
  83                         $requestInstance->requestIsValid(false);
  84
  85                         // Add a message to the response
  86                         $responseInstance->addFatalMessage('password_empty');
  87
  88                         // Abort here
  89                         throw new FilterChainException($this, self::EXCEPTION_FILTER_CHAIN_INTERCEPTED);
  90                 } // END - if
  91
  92                 // Get a user instance
  93                 $userInstance = Registry::getRegistry()->getInstance('user');
  94
  95                 // Get current hash
  96                 $currentHash = $userInstance->getField('pass_hash');
  97
  98                 // Get an encryption helper and encrypt the password
  99                 $passHash = ObjectFactory::createObjectByConfiguredName('crypto_class')->hashString($password, $currentHash);
 100
 101                 // Does it match?
 102                 if ($currentHash != $passHash) {
 103                         // Throw an exception here to stop the proccessing
 104                         throw new AccountPasswordMismatchException($this, BaseUser::EXCEPTION_USER_PASS_MISMATCH);
 105                 } // END - if
 106         }
 107 }
 108
 109 // [EOF]
 110 ?>