grocy/controllers/LoginController.php

<?php

namespace Grocy\Controllers;

class LoginController extends BaseController
{
	protected $SessionCookieName;

	public function GetSessionCookieName()
	{
		return $this->SessionCookieName;
	}

	public function LoginPage(\Psr\Http\Message\ServerRequestInterface $request, \Psr\Http\Message\ResponseInterface $response, array $args)
	{
		return $this->renderPage($response, 'login');
	}

	public function Logout(\Psr\Http\Message\ServerRequestInterface $request, \Psr\Http\Message\ResponseInterface $response, array $args)
	{
		$this->getSessionService()->RemoveSession($_COOKIE[$this->SessionCookieName]);
		return $response->withRedirect($this->AppContainer->get('UrlManager')->ConstructUrl('/'));
	}

	public function ProcessLogin(\Psr\Http\Message\ServerRequestInterface $request, \Psr\Http\Message\ResponseInterface $response, array $args)
	{
		$postParams = $request->getParsedBody();

		if (isset($postParams['username']) && isset($postParams['password']))
		{
			$user = $this->getDatabase()->users()->where('username', $postParams['username'])->fetch();
			$inputPassword = $postParams['password'];
			$stayLoggedInPermanently = $postParams['stay_logged_in'] == 'on';

			if ($user !== null && password_verify($inputPassword, $user->password))
			{
				$sessionKey = $this->getSessionService()->CreateSession($user->id, $stayLoggedInPermanently);
				setcookie($this->SessionCookieName, $sessionKey, PHP_INT_SIZE == 4 ? PHP_INT_MAX : PHP_INT_MAX >> 32);

// Cookie expires never, but session validity is up to SessionService

				if (password_needs_rehash($user->password, PASSWORD_DEFAULT))
				{
					$user->update([
						'password' => password_hash($inputPassword, PASSWORD_DEFAULT)
					]);
				}

				return $response->withRedirect($this->AppContainer->get('UrlManager')->ConstructUrl('/'));
			}
			else
			{
				return $response->withRedirect($this->AppContainer->get('UrlManager')->ConstructUrl('/login?invalid=true'));
			}

		}
		else
		{
			return $response->withRedirect($this->AppContainer->get('UrlManager')->ConstructUrl('/login?invalid=true'));
		}

	}

	public function __construct(\DI\Container $container, string $sessionCookieName)
	{
		parent::__construct($container);
		$this->SessionCookieName = $sessionCookieName;
	}

}