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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of Flight Routing. |
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* |
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* PHP version 7.1 and above required |
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* |
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* @author Divine Niiquaye Ibok <[email protected]> |
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* @copyright 2019 Biurad Group (https://biurad.com/) |
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* @license https://opensource.org/licenses/BSD-3-Clause License |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Flight\Routing\Middlewares; |
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use Flight\Routing\Interfaces\RouteInterface; |
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use Flight\Routing\Route; |
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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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class PathMiddleware implements MiddlewareInterface |
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{ |
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/** @var bool */ |
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private $permanent; |
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/** |
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* @param bool $permanent |
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*/ |
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public function __construct(bool $permanent = true) |
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{ |
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$this->permanent = $permanent; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
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{ |
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$route = $request->getAttribute(Route::class); |
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$response = $handler->handle($request); |
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$path = $this->comparePath($route->getPath(), $request->getUri()->getPath()); |
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// Allow Redirection if exists and avoid static request. |
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if ($route instanceof RouteInterface && null !== $path) { |
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$response = $response |
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->withAddedHeader('Location', $path) |
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->withStatus($this->determineResponseCode($request)); |
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} |
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return $response; |
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} |
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/** |
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* Check if the user is on the right uri which was matched. |
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* If matched returns null, else returns the path the user should be in. |
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* |
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* @param string $routeUri |
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* @param string $requestUri |
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* |
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* @return null|string |
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*/ |
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private function comparePath(string $routeUri, string $requestUri): ?string |
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{ |
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// Resolve Request Uri. |
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$newRequestUri = '/' === $requestUri ? '/' : \rtrim($requestUri, '/'); |
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$newRouteUri = '/' === $routeUri ? $routeUri : \rtrim($routeUri, '/'); |
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$paths = [ |
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'path' => \substr($requestUri, \strlen($newRequestUri)), |
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'route' => \substr($routeUri, \strlen($newRouteUri)), |
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]; |
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if (!empty($paths['route']) && $paths['route'] !== $paths['path']) { |
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return $newRequestUri . $paths['route']; |
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} |
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if (empty($paths['route']) && $paths['route'] !== $paths['path']) { |
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return $newRequestUri; |
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} |
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return null; |
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} |
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/** |
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* Determine the response code according with the method and the permanent config. |
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* |
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* @param ServerRequestInterface $request |
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* |
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* @return int |
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*/ |
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private function determineResponseCode(ServerRequestInterface $request): int |
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{ |
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if (\in_array($request->getMethod(), ['GET', 'HEAD', 'CONNECT', 'TRACE', 'OPTIONS'], true)) { |
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return $this->permanent ? 301 : 302; |
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} |
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return $this->permanent ? 308 : 307; |
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} |
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} |
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divineniiquaye /
flight-routing
