Harea Costicla Harea Costicla - 4 months ago 47
PHP Question

Getting Request and Session in Symfony 3 Controller

I have a big problem and please help me. So I want to create an login system witch will use only users from :

providers:
in_memory:
memory:
users:


So my global routing :
/app/config/routing.yml
:

app_admin:
resource: "@AppAdminBundle/Resources/config/routing.yml"
prefix: /admin


My routing in AdminBundle :

app_admin_homepage:
path: /
defaults: { _controller: AppAdminBundle:Login:index }
login:
path: /login
defaults: { _controller: AppAdminBundle:Login:login }
login_check:
path: /login_check


My LoginController :

<?php

namespace App\AdminBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\Security\Core\SecurityContext;

class LoginController extends Controller
{
public function indexAction()
{
return $this->render('AppAdminBundle:Member:login.html.twig');
}
public function loginAction()
{
$request = $this->get('request');
$session = $this->get('session');

if ($request->attributes->has(SecurityContext::AUTHENTICATION_ERROR)) {
$error = $request->attributes->get(SecurityContext::AUTHENTICATION_ERROR);
} else {
$error = $session->get(SecurityContext::AUTHENTICATION_ERROR);
$session->remove(SecurityContext::AUTHENTICATION_ERROR);
}

return $this->render('AppAdminBundle:Member:login.html.twig', array(
'last_username' => $session->get(SecurityContext::LAST_USERNAME),
'error' => $error,
));
}
}


My login.html.twig :

<form class="login-form" action="{{ path('login_check') }}">
<div class="login-wrap">
<p class="login-img"><i class="icon_lock_alt"></i></p>
<div class="input-group">
<span class="input-group-addon"><i class="icon_profile"></i></span>
<input type="text" id="username" name="_username" value="{{ last_username }}" class="form-control" placeholder="Username" autofocus>
</div>
<div class="input-group">
<span class="input-group-addon"><i class="icon_key_alt"></i></span>
<input type="password" class="form-control" id="password" name="_password" placeholder="Password">
</div>
<button class="btn btn-primary btn-lg btn-block" type="submit">Login</button>
</div>
</form>


And my security.yml :

security:
role_hierarchy:
ROLE_ADMIN: ROLE_USER
ROLE_FMTI: ROLE_FMTI
ROLE_SUPER_ADMIN: [ROLE_USER, ROLE_ADMIN, ROLE_ALLOWED_TO_SWITCH]
access_control:
- { path: ^/login, role: IS_AUTHENTICATED_ANONYMOUSLY }
- { path: ^/admin, role: IS_AUTHENTICATED_ANONYMOUSLY }

firewalls:
dev:
pattern: ^/(_(profiler|wdt)|css|images|js)/
security: false

secured_area:
pattern: ^/admin
anonymous: ~
form_login:
login_path: /admin/login
check_path: /admin/login_check


access_control:
- { path: ^/admin, roles: ROLE_ADMIN }

providers:
in_memory:
memory:
users:
admin: { password: 111111, roles: 'ROLE_FMTI' }

encoders:
Symfony\Component\Security\Core\User\User: plaintext


When I tried to access :
/admin/login


I get this error :
You have requested a non-existent service "request". Did you mean one of these: "router.request_context", "request_stack", "monolog.logger.request", "data_collector.request"?


Could you please help me ? Thanks in advance and sorry for my english

Answer

It's because you are trying to get a non existent service in your controller. In a symfony controller, you can get the request in the method call :

In your Logincontroller, add this use statement :

use Symfony\Component\HttpFoundation\Request;

And in your function declaration

public function loginAction(Request $request)
{
    // you can directly use $request
    ....
}

You can now remove the line where you try to get a non existent service :

// remove this line
$request = $this->get('request');

Also I'm not sure you will get the session with a get('session'). Based on Symfony' documentation, you should do the following :

$session = $request->getSession();

see http://symfony.com/doc/current/book/controller.html#managing-the-session