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<?php
/**
* PHP 5
*
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
*/
App::uses('Security', 'Utility');
App::uses('Hash', 'Utility');
/**
* Base Authentication class with common methods and properties.
*
* @package Cake.Controller.Component.Auth
*/
abstract class BaseAuthenticate {
/**
* Settings for this object.
*
* - `fields` The fields to use to identify a user by.
* - `userModel` The model name of the User, defaults to User.
* - `scope` Additional conditions to use when looking up and authenticating users,
* i.e. `array('User.is_active' => 1).`
* - `recursive` The value of the recursive key passed to find(). Defaults to 0.
* - `contain` Extra models to contain and store in session.
*
* @var array
*/
public $settings = array(
'fields' => array(
'username' => 'username',
'password' => 'password'
),
'userModel' => 'User',
'scope' => array(),
'recursive' => 0,
'contain' => null,
);
/**
* A Component collection, used to get more components.
*
* @var ComponentCollection
*/
protected $_Collection;
/**
* Constructor
*
* @param ComponentCollection $collection The Component collection used on this request.
* @param array $settings Array of settings to use.
*/
public function __construct(ComponentCollection $collection, $settings) {
$this->_Collection = $collection;
$this->settings = Hash::merge($this->settings, $settings);
}
/**
* Find a user record using the standard options.
*
* @param string $username The username/identifier.
* @param string $password The unhashed password.
* @return Mixed Either false on failure, or an array of user data.
*/
protected function _findUser($username, $password) {
$userModel = $this->settings['userModel'];
list($plugin, $model) = pluginSplit($userModel);
$fields = $this->settings['fields'];
$conditions = array(
$model . '.' . $fields['username'] => $username,
$model . '.' . $fields['password'] => $this->_password($password),
);
if (!empty($this->settings['scope'])) {
$conditions = array_merge($conditions, $this->settings['scope']);
}
$result = ClassRegistry::init($userModel)->find('first', array(
'conditions' => $conditions,
'recursive' => $this->settings['recursive'],
'contain' => $this->settings['contain'],
));
if (empty($result) || empty($result[$model])) {
return false;
}
$user = $result[$model];
unset($user[$fields['password']]);
unset($result[$model]);
return array_merge($user, $result);
}
/**
* Hash the plain text password so that it matches the hashed/encrypted password
* in the datasource.
*
* @param string $password The plain text password.
* @return string The hashed form of the password.
*/
protected function _password($password) {
return Security::hash($password, null, true);
}
/**
* Authenticate a user based on the request information.
*
* @param CakeRequest $request Request to get authentication information from.
* @param CakeResponse $response A response object that can have headers added.
* @return mixed Either false on failure, or an array of user data on success.
*/
abstract public function authenticate(CakeRequest $request, CakeResponse $response);
/**
* Allows you to hook into AuthComponent::logout(),
* and implement specialized logout behavior.
*
* All attached authentication objects will have this method
* called when a user logs out.
*
* @param array $user The user about to be logged out.
* @return void
*/
public function logout($user) {
}
/**
* Get a user based on information in the request. Primarily used by stateless authentication
* systems like basic and digest auth.
*
* @param CakeRequest $request Request object.
* @return mixed Either false or an array of user information
*/
public function getUser($request) {
return false;
}
}
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