application/ship-simu/main/login/class_ShipSimuGuestLogin.php

   1 <?php
   2 /**
   3  * A special guest login class for Ship-Simu
   4  *
   5  * @author              Roland Haeder <webmaster@ship-simu.org>
   6  * @version             0.0.0
   7  * @copyright   Copyright(c) 2007, 2008 Roland Haeder, this is free software
   8  * @license             GNU GPL 3.0 or any newer version
   9  * @link                http://www.ship-simu.org
  10  *
  11  * This program is free software: you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation, either version 3 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  23  */
  24 class ShipSimuGuestLogin extends BaseFrameworkSystem implements LoginableUser {
  25         /**
  26          * The hashed password
  27          */
  28         private $hashedPassword = "";
  29
  30         /**
  31          * Protected constructor
  32          *
  33          * @return      void
  34          */
  35         protected function __construct () {
  36                 // Call parent constructor
  37                 parent::__construct(__CLASS__);
  38
  39                 // Set part description
  40                 $this->setObjectDescription("Guest login for Ship-Simu");
  41
  42                 // Create unique ID number
  43                 $this->generateUniqueId();
  44
  45                 // Clean up a little
  46                 $this->removeNumberFormaters();
  47                 $this->removeSystemArray();
  48         }
  49
  50         /**
  51          * Creates an instance of this login class
  52          *
  53          * @return      $loginInstance  An instance of this login class
  54          */
  55         public final static function createShipSimuGuestLogin () {
  56                 // Get a new instance
  57                 $loginInstance = new ShipSimuGuestLogin();
  58
  59                 // Return the instance
  60                 return $loginInstance;
  61         }
  62
  63         /**
  64          * Logins the user with the given request containing the credential. The
  65          * result of the login can be thrown by exception or, if prefered stored
  66          * in a boolean attribute which is then readable by a matching getter.
  67          *
  68          * @param       $requestInstance        An instance of a Requestable class
  69          * @param       $responseInstance       An instance of a Responseable class
  70          * @return      void
  71          * @throws      UserAuthMethodException If wether username nor email login
  72          *                                                                              was detected
  73          * @throws      MissingMethodException          If a method was not found in the
  74          *                                                                              User class
  75          * @throws      UserPasswordMismatchException   If the supplied password did not
  76          *                                                                              match with the stored password
  77          */
  78         public function doLogin (Requestable $requestInstance, Responseable $responseInstance) {
  79                 // By default no method is selected
  80                 $method = null;
  81                 $data = "";
  82
  83                 // Detect login method (username or email) and try to get a userinstance
  84                 if (!is_null($requestInstance->getRequestElement('user'))) {
  85                         // Username found!
  86                         $method = "createGuestByUsername";
  87                         $data = $requestInstance->getRequestElement('user');
  88                 }
  89
  90                 // Is a method detected?
  91                 if (is_null($method)) {
  92                         // Then abort here
  93                         throw new UserAuthMethodException($this, self::EXCEPTION_MISSING_METHOD);
  94                 } elseif (!method_exists($this->getConfigInstance()->readConfig('guest_class'), $method)) {
  95                         // The method is invalid!
  96                         throw new MissingMethodException(array($this, $method), self::EXCEPTION_MISSING_METHOD);
  97                 }
  98
  99                 // Get a instance of the registry
 100                 $userInstance = Registry::getRegistry()->getInstance('user');
 101
 102                 // Is there an instance?
 103                 if (is_null($userInstance)) {
 104                         // Get a user instance
 105                         $userInstance = call_user_func_array(array($this->getConfigInstance()->readConfig('guest_class'), $method), array($data));
 106
 107                         // Remember this new instance in registry
 108                         Registry::getRegistry()->addInstance($userInstance);
 109                 } // END - if
 110
 111                 // Is the password correct?
 112                 if (!$userInstance->ifPasswordHashMatches($requestInstance)) {
 113                         // Mismatching password
 114                         throw new UserPasswordMismatchException(array($this, $userInstance), User::EXCEPTION_USER_PASS_MISMATCH);
 115                 } // END - if
 116
 117                 // Now do the real login. This can be cookie- or session-based login
 118                 // which depends on the admins setting then on the user's taste.
 119                 // 1) Get a login helper instance
 120                 $helperInstance = ObjectFactory::createObjectByConfiguredName('login_helper_class', array($requestInstance));
 121
 122                 // 2) Execute the login. This will now login...
 123                 $helperInstance->executeLogin($responseInstance);
 124         }
 125
 126         /**
 127          * Determines wether the login was fine. This is done by checking if the 'login' instance is in registry
 128          *
 129          * @return      $loginDone      Wether the login was fine or not
 130          */
 131         public function ifLoginWasSuccessfull () {
 132                 // Is the registry key there?
 133                 $loginDone = (Registry::getRegistry()->getInstance('login') instanceof Registerable);
 134
 135                 // Return the result
 136                 return $loginDone;
 137         }
 138
 139         /**
 140          * Encrypt the given request key or throw an exception if the key was not
 141          * found in the request
 142          *
 143          * @param       $requestKey             Key in request class
 144          * @return      void
 145          */
 146         public function encryptPassword ($requestKey) {
 147                 // Check if the password is found in the request
 148                 if ($this->getRequestInstance()->isRequestElementSet($requestKey)) {
 149                         // So encrypt the password and store it for later usage in
 150                         // the request:
 151
 152                         // Get the plain password
 153                         $plainPassword = $this->getRequestInstance()->getRequestElement($requestKey);
 154
 155                         // Get user instance
 156                         $userInstance = Registry::getRegistry()->getInstance('user');
 157
 158                         // Get a crypto helper and hash the password
 159                         $this->hashedPassword = ObjectFactory::createObjectByConfiguredName('crypto_class')->hashString($plainPassword, $userInstance->getPasswordHash());
 160
 161                         // Store the hash back in the request
 162                         $this->getRequestInstance()->setRequestElement('pass_hash', $this->hashedPassword);
 163                 } // END - if
 164         }
 165 }
 166
 167 // [EOF]
 168 ?>