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<?php |
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/** |
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* webtrees: online genealogy |
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* Copyright (C) 2019 webtrees development team |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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declare(strict_types=1); |
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namespace Fisharebest\Webtrees\Http\Middleware; |
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use Fisharebest\Localization\Locale; |
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use Fisharebest\Localization\Locale\LocaleEnUs; |
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use Fisharebest\Localization\Locale\LocaleInterface; |
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use Fisharebest\Webtrees\I18N; |
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use Fisharebest\Webtrees\Module\LanguageEnglishUnitedStates; |
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use Fisharebest\Webtrees\Module\ModuleLanguageInterface; |
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use Fisharebest\Webtrees\Services\ModuleService; |
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use Fisharebest\Webtrees\Session; |
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use Fisharebest\Webtrees\Site; |
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use Fisharebest\Webtrees\Tree; |
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use Generator; |
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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\Server\MiddlewareInterface; |
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use Psr\Http\Server\RequestHandlerInterface; |
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use function app; |
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/** |
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* Middleware to select a language. |
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*/ |
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class UseLanguage implements MiddlewareInterface |
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{ |
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/** @var ModuleService */ |
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private $module_service; |
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/** |
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* UseTheme constructor. |
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* |
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* @param ModuleService $module_service |
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*/ |
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public function __construct(ModuleService $module_service) |
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{ |
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$this->module_service = $module_service; |
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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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* |
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* @return ResponseInterface |
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*/ |
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public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
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{ |
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foreach ($this->languages($request) as $language) { |
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if ($language instanceof ModuleLanguageInterface) { |
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I18N::init($language->locale()->languageTag()); |
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$request = $request->withAttribute('language', $language); |
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$request = $request->withAttribute('locale', $language->locale()); |
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Session::put('language', $language->locale()->languageTag()); |
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break; |
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} |
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} |
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return $handler->handle($request); |
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} |
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/** |
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* The language can be chosen in various ways. |
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* Language module names have the form "language-<code>>". |
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* |
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* @param ServerRequestInterface $request |
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* |
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* @return Generator |
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*/ |
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private function languages(ServerRequestInterface $request): Generator |
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{ |
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$tree = $request->getAttribute('tree'); |
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$languages = $this->module_service->findByInterface(ModuleLanguageInterface::class); |
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// Last language used |
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yield $languages->get('language-' . Session::get('language', '')); |
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// Browser negotiation |
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$locales = $this->module_service->findByInterface(ModuleLanguageInterface::class, true) |
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->map(static function (ModuleLanguageInterface $module): LocaleInterface { |
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return $module->locale(); |
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}); |
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if ($tree instanceof Tree) { |
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$default = Locale::create($tree->getPreference('LANGUAGE', 'en-US')); |
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} else { |
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$default = new LocaleEnUs(); |
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} |
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$locale = Locale::httpAcceptLanguage($request->getServerParams(), $locales->all(), $default); |
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yield $languages->get('language-' . $locale->languageTag()); |
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// No languages enabled? Use en-US |
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yield app(LanguageEnglishUnitedStates::class); |
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} |
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} |
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fisharebest /
webtrees
