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<?php |
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namespace Equip\Handler; |
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use Equip\Directory; |
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use Equip\Exception\HttpException; |
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use Equip\Handler\ActionHandler; |
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use FastRoute; |
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use FastRoute\Dispatcher; |
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use FastRoute\RouteCollector; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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class DispatchHandler |
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{ |
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/** |
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* @var Directory |
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*/ |
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private $directory; |
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/** |
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* @param Directory $directory |
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*/ |
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public function __construct(Directory $directory) |
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{ |
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$this->directory = $directory; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function __invoke( |
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ServerRequestInterface $request, |
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ResponseInterface $response, |
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callable $next |
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) { |
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/** |
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* @var $action Equip\Action |
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*/ |
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list($action, $args) = $this->dispatch( |
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$this->dispatcher(), |
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$request->getMethod(), |
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$request->getUri()->getPath() |
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); |
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$request = $request->withAttribute(ActionHandler::ACTION_ATTRIBUTE, $action); |
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foreach ($args as $key => $value) { |
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$request = $request->withAttribute($key, $value); |
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} |
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return $next($request, $response); |
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} |
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/** |
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* @return Dispatcher |
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*/ |
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protected function dispatcher() |
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{ |
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return FastRoute\simpleDispatcher(function (RouteCollector $collector) { |
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foreach ($this->directory as $request => $action) { |
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list($method, $path) = explode(' ', $request, 2); |
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$collector->addRoute( |
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$method, |
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$this->directory->prefix($path), |
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$action |
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); |
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} |
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}); |
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} |
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/** |
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* @throws HttpNotFound |
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* @throws HttpMethodNotAllowed |
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* |
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* @param Dispatcher $dispatcher |
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* @param string $method |
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* @param string $path |
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* |
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* @return array [Action, $arguments] |
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*/ |
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private function dispatch(Dispatcher $dispatcher, $method, $path) |
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{ |
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$route = $dispatcher->dispatch($method, $path); |
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$status = array_shift($route); |
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if (Dispatcher::FOUND === $status) { |
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return $route; |
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} |
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if (Dispatcher::METHOD_NOT_ALLOWED === $status) { |
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$allowed = array_shift($route); |
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throw HttpException::methodNotAllowed($path, $method, $allowed); |
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} |
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throw HttpException::notFound($path); |
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} |
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} |
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equip /
framework
