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<?php |
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namespace Braunstetter\LocalizedRoutes\EventSubscriber; |
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use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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use Symfony\Component\HttpFoundation\RedirectResponse; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpKernel\Event\RequestEvent; |
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use Symfony\Component\HttpKernel\KernelEvents; |
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use Symfony\Component\Routing\Route; |
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use Symfony\Component\Routing\RouteCollection; |
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use Symfony\Component\Routing\RouterInterface; |
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use Symfony\Component\VarDumper\VarDumper; |
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class LocaleRewriteSubscriber implements EventSubscriberInterface |
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{ |
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private RouteCollection $routeCollection; |
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private ?array $enabledLocales; |
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private mixed $localeRouteParam; |
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public function __construct(RouterInterface $router, array|null $enabledLocales = null) |
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{ |
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$this->routeCollection = $router->getRouteCollection(); |
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$this->localeRouteParam = '_locale'; |
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$this->enabledLocales = $enabledLocales; |
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} |
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public function onKernelRequest(RequestEvent $event) |
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{ |
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$request = $event->getRequest(); |
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$path = $request->getPathInfo(); |
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//Get the locale from the user's browser. |
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$locale = $this->getPreferredLanguage($request); |
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//If no locale from browser or locale not in list of known locales supported then set to defaultLocale set in config.yml |
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if (!$this->isLocaleSupported($locale)) { |
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$locale = $this->getDefaultLocale($request); |
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} |
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if ($this->routeExists($path) && $locale) { |
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$event->setResponse(new RedirectResponse("/" . $locale . $path)); |
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} |
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} |
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private function isLocaleSupported($locale): bool |
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{ |
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if ($this->enabledLocales === null) { |
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return true; |
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} |
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if ($locale) { |
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return $this->isLocaleEnabled($locale); |
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} |
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return false; |
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} |
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private function getPreferredLanguage(Request $request): ?string |
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{ |
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return $request->getPreferredLanguage() ? explode('_', $request->getPreferredLanguage())[0] : null; |
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} |
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private function routeExists(string $path): bool |
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{ |
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return !empty(array_filter(iterator_to_array($this->routeCollection->getIterator()), function($routeObject) use ($path) { |
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return $routeObject->getPath() === "/{" . $this->localeRouteParam . "}" . $path; |
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})); |
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} |
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private function getDefaultLocale(Request $request): ?string |
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{ |
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return $this->isLocaleEnabled($request->getDefaultLocale()) ? $request->getDefaultLocale() : null; |
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} |
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public static function getSubscribedEvents(): array |
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{ |
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return [ |
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KernelEvents::REQUEST => ['onKernelRequest', 64] |
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]; |
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} |
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private function isLocaleEnabled(string $locale): bool |
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{ |
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if ($this->enabledLocales === null) { |
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return true; |
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} |
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return !empty(array_filter($this->enabledLocales, function($supportedLocale) use ($locale) { |
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return in_array($supportedLocale, explode('_', $locale)); |
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})); |
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} |
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} |
Braunstetter /
localized-routes
