login root path / on symfony instead /login - symfony

Question

<!-- templates/bootstrap/login/form-login.html.twig-->
<div class="container">
<div class="row">
<div style="padding-right: 0px;" class="col-12">
<form method="post">
<label for="inputEmail">Email</label>
<input type="email" value="{{ last_username }}" name="email" id="inputEmail" class="form-control" autocomplete="email" required autofocus>
<label for="inputPassword">Password</label>
<input type="password" name="password" id="inputPassword" class="form-control" autocomplete="current-password" required>
<input type="hidden" name="_csrf_token"
value="{{ csrf_token('authenticate') }}"
>
{% if error %}
<div class="alert alert-danger">{{ error.messageKey|trans(error.messageData, 'security') }}</div>
{% endif %}
{% if app.user %}
<div style="margin-top: 10px;" class="mb-3">
You are logged in as {{ app.user.username }}, Logout
</div>
{% endif %}
<button style="margin-top: 10px; width: 100%;" class="btn btn-primary" type="submit">
Sign in
</button>
</form>
<div style="border-top: 1px solid black; height: 1px;margin-top: 10px;"></div>
<a style="width: 100%;" href="/registration" class="btn btn-outline-primary">Create an account</a>
<div style="height: 1px;margin-bottom: 10px;"></div>
</div>
</div>
</div>
All work correctly on "http://webserver5.com:8001/login" path.
But It doesn't work on "http://webserver5.com:8001/" path.
If I enter email and password correctly or incorrectly I obtain only refresh page. Why?
I want "/" root path because to point a login method controller.
Can you help me please.

Answer 1

<?php
namespace App\Security;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Core\Security;
use Symfony\Component\Security\Http\Authenticator\AbstractLoginFormAuthenticator;
use Symfony\Component\Security\Http\Authenticator\Passport\Badge\CsrfTokenBadge;
use Symfony\Component\Security\Http\Authenticator\Passport\Badge\UserBadge;
use Symfony\Component\Security\Http\Authenticator\Passport\Credentials\PasswordCredentials;
use Symfony\Component\Security\Http\Authenticator\Passport\Passport;
use Symfony\Component\Security\Http\Authenticator\Passport\PassportInterface;
use Symfony\Component\Security\Http\Util\TargetPathTrait;
class LoginFormAuthenticator extends AbstractLoginFormAuthenticator
{
use TargetPathTrait;
public const LOGIN_ROUTE = 'app_welcome';
private $urlGenerator;
public function __construct(UrlGeneratorInterface $urlGenerator)
{
$this->urlGenerator = $urlGenerator;
}
public function authenticate(Request $request): PassportInterface
{
$email = $request->request->get('email', '');
$request->getSession()->set(Security::LAST_USERNAME, $email);
return new Passport(
new UserBadge($email),
new PasswordCredentials($request->request->get('password', '')),
[
new CsrfTokenBadge('authenticate', $request->get('_csrf_token')),
]
);
}
public function onAuthenticationSuccess(Request $request, TokenInterface $token, string $firewallName): ?Response
{
if ($targetPath = $this->getTargetPath($request->getSession(), $firewallName)) {
return new RedirectResponse($targetPath);
}
// For example:
return new RedirectResponse($this->urlGenerator->generate('app_contact_index'));
//throw new \Exception('TODO: provide a valid redirect inside '.__FILE__);
}
protected function getLoginUrl(Request $request): string
{
return $this->urlGenerator->generate(self::LOGIN_ROUTE);
}
}
public const LOGIN_ROUTE = 'app_welcome';
This route app_welcome is defined thus:
/
App\Controller\SecurityController::login
Now it works.