You can view the LoginView class that's being controlled by this controller here, if interested.

You can view the LoginView class that's being controlled by this controller here, if interested.

namespace Controller;
use View\LoginView;
use Http\HttpRequest;
use Controller\Controller;
use Model\Application\AntiCsrfService;
use Model\Application\AuthenticationService;
use Model\Application\FormValidationService;
class LoginController extends Controller
{
 private $antiCsrfService;
 private $formValidationService;
 public function __construct(
 HttpRequest $httpRequest,
 AuthenticationService $authenticationService,
 LoginView $loginView,
 AntiCsrfService $antiCsrfService,
 FormValidationService $formValidationService
 ) {
 parent::__construct($httpRequest, $authenticationService, $loginView);
 $this->antiCsrfService = $antiCsrfService;
 $this->formValidationService = $formValidationService;
 if ($this->authenticationService->findLoggedInUser()) {
 $this->view->setIsUserLoggedIn(true);
 $this->view->index();
 }
 }
 public function index()
 {
 $this->view->setFormValueOf('csrfToken', $this->antiCsrfService->getToken());
 $this->view->index();
 }
 public function submit()
 {
 $token = $this->httpRequest->findParameter($this->antiCsrfService->getToken()['name']);
 if ($this->antiCsrfService->isTokenValid($token)) {
 $isLoginFormValid = $this->formValidationService->isLoginValid(
 trim($this->httpRequest->findParameter('email')),
 $this->httpRequest->findParameter('password')
 );
 // Only attempt to log the User in when the form has no validation errors.
 if ($isLoginFormValid) {
 $user = $this->authenticationService->loginUser(
 trim($this->httpRequest->findParameter('email')),
 $this->httpRequest->findParameter('password'),
 $this->httpRequest->findParameter('remember') ? true : false
 );
 }
 // Two type of errors in one statement: failed login and form validation (DRY).
 // ↓ Either one would evaluate to true, but never both.
 if (!$isLoginFormValid || !$user) {
 // If login form inputs are valid, login has failed.
 // If login form inputs are invalid, login has not failed.
 // Logging in is not attempted when the login form inputs are invalid.
 $this->view->setHasLoginFailed($isLoginFormValid ? true : false);
 $this->view->setFormValueOf('csrfToken', $this->antiCsrfService->getToken());
 $this->view->setFormValueOf('email', $this->httpRequest->findParameter('email'));
 $this->view->setFormValueOf('remember', $this->httpRequest->findParameter('remember', false));
 foreach ($this->formValidationService->findErrorsOf('Login') as $key => $value) {
 $this->view->setFormErrorCodeOf($key, $value);
 }
 $this->view->index();
 return null;
 }
 // Set persistent user login cookie if User opted to stay logged in.
 if ($this->httpRequest->findParameter('remember')) {
 $this->view->setPersistentUserLoginCookie(
 (string) $user->getIdentifier(),
 (string) $user->getAuth()->getSeriesNumber(),
 (string) $user->getAuth()->getToken()
 );
 }
 $this->view->setIsUserLoggedIn(true);
 // Token has been succesfully used.
 $this->antiCsrfService->regenerateToken();
 } else {
 $this->view->setIsFormTokenValid(false);
 }
 $this->view->index();
 return null;
 }
}

namespace Controller;
use View\LoginView;
use Http\HttpRequest;
use Controller\Controller;
use Model\Application\AntiCsrfService;
use Model\Application\AuthenticationService;
use Model\Application\FormValidationService;
class LoginController extends Controller
{
 private $antiCsrfService;
 private $formValidationService;
 public function __construct(
 HttpRequest $httpRequest,
 AuthenticationService $authenticationService,
 LoginView $loginView,
 AntiCsrfService $antiCsrfService,
 FormValidationService $formValidationService
 ) {
 parent::__construct($httpRequest, $authenticationService, $loginView);
 $this->antiCsrfService = $antiCsrfService;
 $this->formValidationService = $formValidationService;
 if ($this->authenticationService->findLoggedInUser()) {
 $this->view->setIsUserLoggedIn(true);
 $this->view->index();
 }
 }
 public function index()
 {
 $this->view->setFormValueOf('csrfToken', $this->antiCsrfService->getToken());
 $this->view->index();
 }
 public function submit()
 {
 $token = $this->httpRequest->findParameter($this->antiCsrfService->getToken()['name']);
 if ($this->antiCsrfService->isTokenValid($token)) {
 $isLoginFormValid = $this->formValidationService->isLoginValid(
 trim($this->httpRequest->findParameter('email')),
 $this->httpRequest->findParameter('password')
 );
 // Only attempt to log the User in when the form has no validation errors.
 if ($isLoginFormValid) {
 $user = $this->authenticationService->loginUser(
 trim($this->httpRequest->findParameter('email')),
 $this->httpRequest->findParameter('password'),
 $this->httpRequest->findParameter('remember') ? true : false
 );
 }
 // Two type of errors in one statement: failed login and form validation (DRY).
 // ↓ Either one would evaluate to true, but never both.
 if (!$isLoginFormValid || !$user) {
 // If login form inputs are valid, login has failed.
 // If login form inputs are invalid, login has not failed.
 // Logging in is not attempted when the login form inputs are invalid.
 $this->view->setHasLoginFailed($isLoginFormValid ? true : false);
 $this->view->setFormValueOf('csrfToken', $this->antiCsrfService->getToken());
 $this->view->setFormValueOf('email', $this->httpRequest->findParameter('email'));
 $this->view->setFormValueOf('remember', $this->httpRequest->findParameter('remember', false));
 foreach ($this->formValidationService->findErrorsOf('Login') as $key => $value) {
 $this->view->setFormErrorCodeOf($key, $value);
 }
 $this->view->index();
 return null;
 }
 // Set persistent user login cookie if User opted to stay logged in.
 if ($this->httpRequest->findParameter('remember')) {
 $this->view->setPersistentUserLoginCookie(
 (string) $user->getIdentifier(),
 (string) $user->getAuth()->getSeriesNumber(),
 (string) $user->getAuth()->getToken()
 );
 }
 $this->view->setIsUserLoggedIn(true);
 // Token has been succesfully used.
 $this->antiCsrfService->regenerateToken();
 } else {
 $this->view->setIsFormTokenValid(false);
 }
 $this->view->index();
 }
}