<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Bridge\Twig;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\HttpFoundation\Session\Session;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
/**
* Exposes some Symfony parameters and services as an "app" global variable.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class AppVariable
{
private $tokenStorage;
private $requestStack;
private $environment;
private $debug;
public function setTokenStorage(TokenStorageInterface $tokenStorage)
{
$this->tokenStorage = $tokenStorage;
}
public function setRequestStack(RequestStack $requestStack)
{
$this->requestStack = $requestStack;
}
public function setEnvironment($environment)
{
$this->environment = $environment;
}
public function setDebug($debug)
{
$this->debug = (bool) $debug;
}
/**
* Returns the current token.
*
* @return TokenInterface|null
*
* @throws \RuntimeException When the TokenStorage is not available
*/
public function getToken()
{
if (null === $tokenStorage = $this->tokenStorage) {
throw new \RuntimeException('The "app.token" variable is not available.');
}
return $tokenStorage->getToken();
}
/**
* Returns the current user.
*
* @return object|null
*
* @see TokenInterface::getUser()
*/
public function getUser()
{
if (null === $tokenStorage = $this->tokenStorage) {
throw new \RuntimeException('The "app.user" variable is not available.');
}
if (!$token = $tokenStorage->getToken()) {
return null;
}
$user = $token->getUser();
return \is_object($user) ? $user : null;
}
/**
* Returns the current request.
*
* @return Request|null The HTTP request object
*/
public function getRequest()
{
if (null === $this->requestStack) {
throw new \RuntimeException('The "app.request" variable is not available.');
}
return $this->requestStack->getCurrentRequest();
}
/**
* Returns the current session.
*
* @return Session|null The session
*/
public function getSession()
{
if (null === $this->requestStack) {
throw new \RuntimeException('The "app.session" variable is not available.');
}
return ($request = $this->getRequest()) ? $request->getSession() : null;
}
/**
* Returns the current app environment.
*
* @return string The current environment string (e.g 'dev')
*/
public function getEnvironment()
{
if (null === $this->environment) {
throw new \RuntimeException('The "app.environment" variable is not available.');
}
return $this->environment;
}
/**
* Returns the current app debug mode.
*
* @return bool The current debug mode
*/
public function getDebug()
{
if (null === $this->debug) {
throw new \RuntimeException('The "app.debug" variable is not available.');
}
return $this->debug;
}
/**
* Returns some or all the existing flash messages:
* * getFlashes() returns all the flash messages
* * getFlashes('notice') returns a simple array with flash messages of that type
* * getFlashes(['notice', 'error']) returns a nested array of type => messages.
*
* @return array
*/
public function getFlashes($types = null)
{
try {
$session = $this->getSession();
if (null === $session) {
return [];
}
} catch (\RuntimeException $e) {
return [];
}
if (null === $types || '' === $types || [] === $types) {
return $session->getFlashBag()->all();
}
if (\is_string($types)) {
return $session->getFlashBag()->get($types);
}
$result = [];
foreach ($types as $type) {
$result[$type] = $session->getFlashBag()->get($type);
}
return $result;
}
}