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<?php |
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/** |
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* Platine Framework |
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* |
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* Platine Framework is a lightweight, high-performance, simple and elegant |
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* PHP Web framework |
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* |
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* This content is released under the MIT License (MIT) |
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* |
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* Copyright (c) 2020 Platine Framework |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in all |
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* copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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/** |
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* @file HttpKernel.php |
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* |
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* The HTTP Kernel class |
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* |
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* @package Platine\Framework\Kernel |
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* @author Platine Developers team |
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* @copyright Copyright (c) 2020 |
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* @license http://opensource.org/licenses/MIT MIT License |
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* @link http://www.iacademy.cf |
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* @version 1.0.0 |
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* @filesource |
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*/ |
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declare(strict_types=1); |
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namespace Platine\Framework\Kernel; |
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use Platine\Config\Config; |
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use Platine\Framework\App\Application; |
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use Platine\Framework\Http\Emitter\EmitterInterface; |
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use Platine\Framework\Http\Exception\HttpNotFoundException; |
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use Platine\Http\Handler\MiddlewareInterface; |
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use Platine\Http\Handler\MiddlewareResolverInterface; |
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use Platine\Http\Handler\RequestHandlerInterface; |
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use Platine\Http\ResponseInterface; |
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use Platine\Http\ServerRequest; |
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use Platine\Http\ServerRequestInterface; |
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use Platine\Route\Router; |
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/** |
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* class HttpKernel |
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* @package Platine\Framework\Kernel |
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*/ |
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class HttpKernel implements RequestHandlerInterface |
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{ |
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/** |
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* The router instance |
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* @var Router |
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*/ |
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protected Router $router; |
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/** |
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* The list of middlewares |
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* @var MiddlewareInterface[] |
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*/ |
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protected array $middlewares = []; |
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/** |
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* Application instance |
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* @var Application |
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*/ |
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protected Application $app; |
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/** |
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* Create new instance |
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* @param Application $app |
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* @param Router $router |
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*/ |
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public function __construct(Application $app, Router $router) |
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{ |
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$this->app = $app; |
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$this->router = $router; |
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} |
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/** |
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* Bootstrap the application |
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* @return void |
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*/ |
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public function bootstrap(): void |
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{ |
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$this->app->registerConfiguration(); |
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$this->app->registerConfiguredServiceProviders(); |
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$this->app->boot(); |
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} |
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/** |
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* Add new middleware in the list |
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* @param mixed $middleware |
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* @return $this |
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*/ |
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public function use($middleware): self |
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{ |
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/** @var MiddlewareResolverInterface $resolver */ |
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$resolver = $this->app->get(MiddlewareResolverInterface::class); |
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$this->middlewares[] = $resolver->resolve($middleware); |
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return $this; |
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} |
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/** |
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* Run the kernel |
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* @param ServerRequestInterface|null $request |
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* @return void |
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*/ |
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public function run(?ServerRequestInterface $request = null): void |
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{ |
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//bootstrap the application |
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$this->bootstrap(); |
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//set the routing |
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$this->setRouting(); |
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//Load configured middlewares |
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$this->registerConfiguredMiddlewares(); |
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$req = $request ?? ServerRequest::createFromGlobals(); |
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/** @var EmitterInterface $emitter */ |
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$emitter = $this->app->get(EmitterInterface::class); |
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$response = $this->handle($req); |
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$emitter->emit( |
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$response, |
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!$this->isEmptyResponse( |
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$req->getMethod(), |
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$response->getStatusCode() |
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) |
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); |
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} |
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/** |
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* Handle the request and generate response |
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* @param ServerRequestInterface $request |
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* @return ResponseInterface |
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*/ |
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public function handle(ServerRequestInterface $request): ResponseInterface |
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{ |
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$handler = clone $this; |
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if (key($handler->middlewares) === null) { |
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throw new HttpNotFoundException($request); |
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} |
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$middleware = current($handler->middlewares); |
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next($handler->middlewares); |
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return $middleware->process($request, $handler); |
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} |
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/** |
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* Set routing information |
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* @return void |
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*/ |
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public function setRouting(): void |
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{ |
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/** @template T @var Config<T> $config */ |
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$config = $this->app->get(Config::class); |
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$basePath = $this->app->getBasePath(); |
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if (empty($basePath)) { |
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$basePath = $config->get('app.base_path'); |
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} |
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$this->router->setBasePath($basePath); |
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$routes = $config->get('routes', []); |
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//TODO find a way to remove return of array for |
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//routes configuration |
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$routes[0]($this->router); |
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$this->app->instance($this->router); |
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} |
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/** |
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* Load configured middlewares |
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* @return void |
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*/ |
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protected function registerConfiguredMiddlewares(): void |
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{ |
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/** @template T @var Config<T> $config */ |
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$config = $this->app->get(Config::class); |
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/** @var string[] $middlewares */ |
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$middlewares = $config->get('middlewares', []); |
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foreach ($middlewares as $middleware) { |
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$this->use($middleware); |
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} |
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} |
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/** |
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* Whether is the response with no body |
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* @param string $method |
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* @param int $statusCode |
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* @return bool |
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*/ |
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private function isEmptyResponse(string $method, int $statusCode): bool |
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{ |
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return (strtoupper($method) === 'HEAD') |
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|| (in_array($statusCode, [100, 101, 102, 204, 205, 304], true)); |
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} |
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} |
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