1: <?php
 2: /**
 3:  * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
 4:  * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 5:  *
 6:  * Licensed under The MIT License
 7:  * For full copyright and license information, please see the LICENSE.txt
 8:  * Redistributions of files must retain the above copyright notice.
 9:  *
10:  * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
11:  * @link          http://cakephp.org CakePHP(tm) Project
12:  * @license       http://www.opensource.org/licenses/mit-license.php MIT License
13:  */
14: 
15: App::uses('BaseAuthenticate', 'Controller/Component/Auth');
16: 
17: /**
18:  * An authentication adapter for AuthComponent. Provides the ability to authenticate using POST
19:  * data. Can be used by configuring AuthComponent to use it via the AuthComponent::$authenticate setting.
20:  *
21:  * {{{
22:  *  $this->Auth->authenticate = array(
23:  *      'Form' => array(
24:  *          'scope' => array('User.active' => 1)
25:  *      )
26:  *  )
27:  * }}}
28:  *
29:  * When configuring FormAuthenticate you can pass in settings to which fields, model and additional conditions
30:  * are used. See FormAuthenticate::$settings for more information.
31:  *
32:  * @package       Cake.Controller.Component.Auth
33:  * @since 2.0
34:  * @see AuthComponent::$authenticate
35:  */
36: class FormAuthenticate extends BaseAuthenticate {
37: 
38: /**
39:  * Checks the fields to ensure they are supplied.
40:  *
41:  * @param CakeRequest $request The request that contains login information.
42:  * @param string $model The model used for login verification.
43:  * @param array $fields The fields to be checked.
44:  * @return bool False if the fields have not been supplied. True if they exist.
45:  */
46:     protected function _checkFields(CakeRequest $request, $model, $fields) {
47:         if (empty($request->data[$model])) {
48:             return false;
49:         }
50:         foreach (array($fields['username'], $fields['password']) as $field) {
51:             $value = $request->data($model . '.' . $field);
52:             if (empty($value) && $value !== '0' || !is_string($value)) {
53:                 return false;
54:             }
55:         }
56:         return true;
57:     }
58: 
59: /**
60:  * Authenticates the identity contained in a request. Will use the `settings.userModel`, and `settings.fields`
61:  * to find POST data that is used to find a matching record in the `settings.userModel`. Will return false if
62:  * there is no post data, either username or password is missing, or if the scope conditions have not been met.
63:  *
64:  * @param CakeRequest $request The request that contains login information.
65:  * @param CakeResponse $response Unused response object.
66:  * @return mixed False on login failure. An array of User data on success.
67:  */
68:     public function authenticate(CakeRequest $request, CakeResponse $response) {
69:         $userModel = $this->settings['userModel'];
70:         list(, $model) = pluginSplit($userModel);
71: 
72:         $fields = $this->settings['fields'];
73:         if (!$this->_checkFields($request, $model, $fields)) {
74:             return false;
75:         }
76:         return $this->_findUser(
77:             $request->data[$model][$fields['username']],
78:             $request->data[$model][$fields['password']]
79:         );
80:     }
81: 
82: }
83: