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<?php declare(strict_types=1); |
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namespace Bone\I18n\Http\Middleware; |
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use Locale; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Message\UriInterface; |
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use Psr\Http\Server\MiddlewareInterface; |
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use Psr\Http\Server\RequestHandlerInterface; |
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use Laminas\I18n\Translator\Translator; |
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class I18nMiddleware implements MiddlewareInterface |
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{ |
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const REGEX_LOCALE = '#^/(?P<locale>[a-z]{2}[-_][a-zA-Z]{2})(?:/|$)#'; |
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/** @var Translator$translator */ |
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private $translator; |
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/** @var array $supportedLocales */ |
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private $supportedLocales; |
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/** @var string $defaultLocale */ |
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private $defaultLocale; |
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/** @var bool $enabled */ |
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private $enabled; |
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/** |
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* InternationalisationMiddleware constructor. |
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* @param $helper |
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* @param string|null $defaultLocale |
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*/ |
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public function __construct(Translator $translator, array $supportedLocales, string $defaultLocale, bool $enabled) |
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{ |
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$this->translator = $translator; |
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$this->supportedLocales = $supportedLocales; |
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$this->defaultLocale = $defaultLocale; |
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$this->enabled = $enabled; |
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} |
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/** |
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* @param ServerRequestInterface $request |
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* @param RequestHandlerInterface $handler |
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* @return ResponseInterface |
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*/ |
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public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
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{ |
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$uri = $request->getUri(); |
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$path = $uri->getPath(); |
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preg_match(self::REGEX_LOCALE, $path, $matches); |
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$locale = $this->defaultLocale; |
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if (isset($matches['locale'])) { |
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$locale = in_array($matches['locale'], $this->supportedLocales) ? $matches['locale'] : $this->defaultLocale; |
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$request = $this->stripLocaleFromUri($uri, $path, $locale, $request); |
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} |
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Locale::canonicalize($locale); |
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Locale::setDefault($locale); |
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$request = $request->withAttribute('locale', $locale); |
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if ($this->enabled === true) { |
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$this->translator->setLocale($locale); |
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} |
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return $handler->handle($request); |
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} |
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/** |
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* @param UriInterface $uri |
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* @param string $path |
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* @param string $locale |
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* @param ServerRequestInterface $request |
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* @return ServerRequestInterface |
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*/ |
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private function stripLocaleFromUri(UriInterface $uri, string $path, string $locale, ServerRequestInterface $request): ServerRequestInterface |
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{ |
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$path = substr($path, strlen($locale) + 1) ?? '/'; |
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$uri = $uri->withPath($path); |
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$request = $request->withUri($uri); |
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return $request; |
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} |
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} |
delboy1978uk /
bone-i18n
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