Login and auth classes added. WARNING: All class config entries must end with _class!
[shipsimu.git] / application / ship-simu / main / login / class_ShipSimuUserLogin.php
1 <?php
2 /**
3  * A special 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 ShipSimuUserLogin extends BaseFrameworkSystem implements LoginableUser {
25         /**
26          * Protected constructor
27          *
28          * @return      void
29          */
30         protected function __construct () {
31                 // Call parent constructor
32                 parent::__construct(__CLASS__);
33
34                 // Set part description
35                 $this->setObjectDescription("Login for Ship-Simu");
36
37                 // Create unique ID number
38                 $this->generateUniqueId();
39
40                 // Clean up a little
41                 $this->removeNumberFormaters();
42                 $this->removeSystemArray();
43         }
44
45         /**
46          * Creates an instance of this login class
47          *
48          * @return      $loginInstance  An instance of this login class
49          */
50         public final static function createShipSimuUserLogin () {
51                 // Get a new instance
52                 $loginInstance = new ShipSimuUserLogin();
53
54                 // Return the instance
55                 return $loginInstance;
56         }
57
58         /**
59          * Logins the user with the given request containing the credential. The
60          * result of the login can be thrown by exception or, if prefered stored
61          * in a boolean attribute which is then readable by a matching getter.
62          *
63          * @param       $requestInstance        An instance of a Requestable class
64          * @param       $responseInstance       An instance of a Responseable class
65          * @return      void
66          * @throws      UserAuthMethodException If wether username nor email login
67          *                                                                              was detected
68          * @throws      MissingMethodException          If a method was not found in the
69          *                                                                              User class
70          * @throws      UserPasswordMismatchException   If the supplied password did not
71          *                                                                              match with the stored password
72          */
73         public function doLogin (Requestable $requestInstance, Responseable $responseInstance) {
74                 // By default no method is selected
75                 $method = null;
76                 $data = "";
77
78                 // Detect login method (username or email) and try to get a userinstance
79                 if (!is_null($requestInstance->getRequestElement('username'))) {
80                         // Username found!
81                         $method = "createUserByUsername";
82                         $data = $requestInstance->getRequestElement('username');
83                 } elseif (!is_null($requestInstance->getRequestElement('email'))) {
84                         // Email found!
85                         $method = "createUserByEmail";
86                         $data = $requestInstance->getRequestElement('email');
87                 }
88
89                 // Is a method detected?
90                 if (is_null($method)) {
91                         // Then abort here
92                         throw new UserAuthMethodException($this, self::EXCEPTION_MISSING_METHOD);
93                 } elseif (!method_exists($this->getConfigInstance()->readConfig('user_class'), $method)) {
94                         // The method is invalid!
95                         throw new MissingMethodException(array($this, $method), self::EXCEPTION_MISSING_METHOD);
96                 }
97
98                 // Get a instance of the registry
99                 $userInstance = Registry::getRegistry()->getInstance('user');
100
101                 // Is there an instance?
102                 if (is_null($userInstance)) {
103                         // Get a user instance
104                         $userInstance = call_user_func_array(array($this->getConfigInstance()->readConfig('user_class'), $method), array($data));
105
106                         // Remember this new instance in registry
107                         Registry::getRegistry()->addInstance($userInstance);
108                 } // END - if
109
110                 // Is the password correct?
111                 if (!$userInstance->ifPasswordHashMatches($requestInstance)) {
112                         // Mismatching password
113                         throw new UserPasswordMismatchException(array($this, $userInstance), User::EXCEPTION_USER_PASS_MISMATCH);
114                 } // END - if
115
116                 // Now do the real login. This can be cookie- or session-based login
117                 // which depends on the admins setting then on the user's taste.
118                 // 1) Get a login helper instance
119                 $helperInstance = ObjectFactory::createObjectByConfiguredName('login_helper_class', array($requestInstance));
120
121                 // 2) Execute the login. This will now login...
122                 $helperInstance->executeLogin($responseInstance);
123         }
124
125         /**
126          * Determines wether the login was fine. This is done by checking if the 'login' instance is in registry
127          *
128          * @return      $loginDone      Wether the login was fine or not
129          */
130         public function ifLoginWasSuccessfull () {
131                 // Is the registry key there?
132                 $loginDone = (Registry::getRegistry()->getInstance('login') instanceof Registerable);
133
134                 // Return the result
135                 return $loginDone;
136         }
137 }
138
139 // [EOF]
140 ?>