1: <?php
 2: 
 3: class UserResetPasswordRequest extends AppModel {
 4: 
 5:     // 48 horas = 48*60*60
 6: 
 7:     const LIFE_TIME_LIMIT = 172800;
 8: 
 9:     public $validate = array(
10:         'chave' => array(
11:             'rule' => array('isUnique'),
12:         ),
13:     );
14: 
15:     public function expired($instance) {
16:         return ((mktime() - strtotime($instance[$this->alias]['created'])) > self::LIFE_TIME_LIMIT);
17:     }
18: 
19:     public function createNewRequest($userId) {
20:         return $this->save(array(
21:                     $this->alias => array(
22:                         'user_id' => $userId,
23:                         'chave' => $this->_generateNewChave(),
24:                         'usado' => null,
25:                     )
26:         ));
27:     }
28: 
29:     private function _generateNewChave() {
30:         do {
31:             $chave = $this->_generateChave();
32:         } while ($this->findByChave($chave));
33: 
34:         return $chave;
35:     }
36: 
37:     private function _generateChave() {
38:         return substr(
39:                 str_shuffle("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
40:                 , 0
41:                 , 32
42:         );
43:     }
44: 
45: }
46: 
47: ?>
48: