Services - CakePHP
Authentication
Authentication is the process of identifying the correct user. CakePHP supports three types of authentication.
FormAuthenticate - It allows you to authenticate users based on form POST data. Usually this is a login form that users enter information into. This is default authentication method.
BasicAuthenticate - It allows you to authenticate users using Basic HTTP authentication.
DigestAuthenticate - It allows you to authenticate users using Digest HTTP authentication.
Example for FormAuthentication
Make changes in the config/routes.php file as shown in the following code.
config/routes.php
<?php
use Cake\Core\Plugin;
use Cake\Routing\RouteBuilder;
use Cake\Routing\Router;
Router::defaultRouteClass('DashedRoute');
Router::scope('/', function (RouteBuilder $routes) {
$routes->connect('/auth',['controller'=>'Authexs','action'=>'index']);
$routes->connect('/login',['controller'=>'Authexs','action'=>'login']);
$routes->connect('/logout',['controller'=>'Authexs','action'=>'logout']);
$routes->fallbacks('DashedRoute');
});
Plugin::routes();
Change the code of AppController.php file as shown in the following program.
src/Controller/AppController.php
<?php
namespace App\Controller;
use Cake\Controller\Controller;
use Cake\Event\Event;
use Cake\Controller\Component\AuthComponent;
class AppController extends Controller{
public function initialize(){
parent::initialize();
$this->loadComponent('RequestHandler');
$this->loadComponent('Flash');
$this->loadComponent('Auth', [
'authenticate' => [
'Form' => [
'fields' => ['username' => 'username', 'password' => 'password']
]
],
'loginAction' => ['controller' => 'Authexs', 'action' => 'login'],
'loginRedirect' => ['controller' => 'Authexs', 'action' => 'index'],
'logoutRedirect' => ['controller' => 'Authexs', 'action' => 'login']
]);
$this->Auth->config('authenticate', [
AuthComponent::ALL => ['userModel' => 'users'], 'Form']);
}
public function beforeRender(Event $event){
if (!array_key_exists('_serialize', $this=>viewVars) &&
in_array($this->response=>type(), ['application/json', 'application/xml'])) {
$this->set('_serialize', true);
}
}
}
Create AuthexsController.php file at src/Controller/AuthexsController.php. Copy the following code in the controller file.
src/Controller/AuthexsController.php
<?php
namespace App\Controller;
use App\Controller\AppController;
use Cake\ORM\TableRegistry;
use Cake\Datasource\ConnectionManager;
use Cake\Event\Event;
use Cake\Auth\DefaultPasswordHasher;
class AuthexsController extends AppController{
var $components = array('Auth');
public function index(){
}
public function login(){
if($this->request->is('post')){
$user = $this->Auth->identify();
if($user){
$this->Auth->setUser($user);
return $this->redirect($this->Auth->redirectUrl());
} else
$this->Flash->error('Your username or password is incorrect.');
}
}
public function logout(){
return $this->redirect($this->Auth->logout());
}
}
?>
Create a directory Authexs at src/Template and under that directory create a View file called login.ctp. Copy the following code in that file.
src/Template/Authexs/login.ctp
<?php
echo $this->Form->create();
echo $this->Form->input('username');
echo $this->Form->input('password');
echo $this->Form->button('Submit');
echo $this->Form->end();
?>
Create another View file called logout.ctp. Copy the following code in that file.
src/Template/Authexs/logout.ctp
You are successfully loggedout.
Create another View file called index.ctp. Copy the following code in that file.
src/Template/Authexs/index.ctp
You are successfully logged in.
<?php echo
$this->Html->link('logout',["controller" => "Authexs","action" => "logout"]);
?>
Execute the above example by visiting the following URL.
http://localhost:85/CakePHP/auth
Output
As the authentication has been implemented so once you try to visit the above URL, you will be redirected to the login page as shown below.
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