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<?php |
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declare(strict_types=1); |
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namespace PTS\EndPoint; |
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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\RequestHandlerInterface; |
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use PTS\PSR15Routing\Route; |
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class EndPoint implements RequestHandlerInterface |
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{ |
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/** @var string|null */ |
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protected $controller; |
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/** @var string|null */ |
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protected $action; |
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public function __construct(array $params = []) |
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{ |
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foreach ($params as $name => $param) { |
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if (property_exists($this, $name)) { |
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$this->setProperty($name, $param); |
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} |
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} |
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} |
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/** |
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* @param ServerRequestInterface $request |
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* |
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* @return ResponseInterface |
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* @throws \BadMethodCallException |
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*/ |
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public function handle(ServerRequestInterface $request): ResponseInterface |
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{ |
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$route = $this->getRoute($request); |
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$endPoint = $this->getPoint($request); |
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$params = $this->getParams($route); |
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return $endPoint(...$params); |
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} |
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protected function setProperty(string $name, $value): void |
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{ |
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$this->{$name} = $value; |
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} |
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/** |
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* Get params from router and remove all protected params (_controller/_action/_other) |
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* |
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* @param Route $route |
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* @return array |
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*/ |
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protected function getParams(Route $route): array |
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{ |
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return array_filter($route->getMatchesParams(), function ($name) { |
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return $name[0] !== '_'; |
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}, ARRAY_FILTER_USE_KEY); |
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} |
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/** |
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* @param ServerRequestInterface $request |
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* |
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* @return callable |
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* @throws \BadMethodCallException |
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*/ |
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protected function getPoint(ServerRequestInterface $request) : callable |
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{ |
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$controller = $this->getControllerClass($request); |
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$this->checkController($controller); |
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$controller = new $controller($request); |
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$action = $this->getAction($request) ?? 'index'; |
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$this->checkAction($controller, $action); |
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return [$controller, $action]; |
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} |
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protected function getControllerClass(ServerRequestInterface $request): string |
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{ |
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return $this->controller ?? ''; |
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} |
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/** |
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* @param string $controller |
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* @throws \BadMethodCallException |
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*/ |
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protected function checkController(string $controller) : void |
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{ |
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if (!class_exists($controller)) { |
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throw new \BadMethodCallException('Controller not found'); |
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} |
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} |
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/** |
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* @param \object $controller |
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* @param string $action |
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* @throws \BadMethodCallException |
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*/ |
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protected function checkAction($controller, string $action) : void |
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{ |
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if (!method_exists($controller, $action)) { |
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throw new \BadMethodCallException('Action not found'); |
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} |
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} |
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protected function getAction(ServerRequestInterface $request): ?string |
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{ |
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$route = $this->getRoute($request); |
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$matches = $route->getMatchesParams(); |
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return $matches['_action'] ?? $this->action ?? null; |
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} |
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1 |
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protected function getRoute(ServerRequestInterface $request): Route |
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{ |
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1 |
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return $request->getAttribute('route'); |
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} |
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} |
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alexpts /
php-psr15-routing
