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<?php |
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declare(strict_types=1); |
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/** |
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* darkmatter framework |
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* by Zsolt Sándor <[email protected]> |
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* |
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* @link https://elevenone.space |
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* @license MIT |
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*/ |
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namespace App; |
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use DarkMatter\Http\Request; |
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use DarkMatter\Http\Response; |
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use DarkMatter\Components\Router\RouterInterface; |
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use DarkMatter\Components\Router\Router; |
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use DarkMatter\Components\Logger\LoggerInterface; |
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use DarkMatter\Exception\Application\DarkMatterException; |
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use DarkMatter\Exception\ExceptionHandlerInterface; |
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use DarkMatter\Exception\Http\BadRequestException; |
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use DarkMatter\Exception\Http\MethodNotAllowedException; |
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use DarkMatter\Exception\Http\NotFoundException; |
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class Application |
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{ |
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/** |
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* @var array $config |
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*/ |
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public $config; |
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/** |
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* @var Request $request |
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*/ |
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public $request; |
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/** |
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* @var RouterInterface $router |
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*/ |
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public $router; |
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/** |
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* @var LoggerInterface $logger |
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*/ |
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public $logger; |
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/** |
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* @var ExceptionHandlerInterface $exceptionHandler |
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*/ |
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public $exceptionHandler; |
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public function __construct( |
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array $config, |
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Request $request, |
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RouterInterface $router, |
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LoggerInterface $logger, |
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ExceptionHandlerInterface $exceptionHandler |
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) { |
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$this->config = $config; |
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$this->router = $router; |
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$this->request = $request; |
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$this->logger = $logger; |
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$this->exceptionHandler = $exceptionHandler; |
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} |
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/** |
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* Runs the application and passes all errors to exception handler. |
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* |
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* @return Response |
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*/ |
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public function run(): Response |
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{ |
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try { |
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$response = $this->dispatch(); |
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$this->send($response); |
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} catch (\Error $e) { |
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$response = $this->exceptionHandler->handleError($e); |
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$this->send($response); |
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} catch (\Exception $e) { |
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$response = $this->exceptionHandler->handleException($e); |
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$this->send($response); |
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} |
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return $response; |
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} |
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/** |
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* Analyzes the request using the router and calls corresponding action. |
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* Throws HTTP exceptions in case request could not be assigned to an action. |
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* @throws BadRequestException |
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* @throws MethodNotAllowedException |
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* @throws NotFoundException |
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* @throws DarkMatterException |
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* @return Response |
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*/ |
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protected function dispatch(): Response |
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{ |
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$httpMethod = $this->request->getRequestMethod(); |
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$uri = $this->request->getRequestUri(); |
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$routeInfo = $this->router->dispatch($httpMethod, $uri); |
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if (!isset($routeInfo[0])) { |
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throw new BadRequestException('Unable to parse request.'); |
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} |
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switch ($routeInfo[0]) { |
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case Router::NOT_FOUND: |
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throw new NotFoundException('Page not found.'); |
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case Router::METHOD_NOT_ALLOWED: |
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throw new MethodNotAllowedException('Method not allowed'); |
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case Router::FOUND: |
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$action = $routeInfo[1]; |
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$arguments = $routeInfo[2]; |
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return $this->callAction($action, $arguments); |
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default: |
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throw new BadRequestException('Unable to parse request.'); |
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} |
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} |
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/** |
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* Calls an action. |
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* |
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* @param string $handler |
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* @param array $arguments |
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* @throws DarkMatterException |
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* @return Response |
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*/ |
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public function callAction(string $handler, array $arguments = []): Response |
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{ |
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if (!class_exists($handler)) { |
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throw new DarkMatterException('Action class not found.'); |
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} |
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/** @var \DarkMatter\Action\ActionInterface $action */ |
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$action = new $handler($this->config, $this->logger, $this->request); |
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return $action->__invoke($arguments); |
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} |
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/** |
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* Sends response to client. |
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* |
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* @param Response $response |
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* @return void |
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*/ |
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public function send(Response $response): void |
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{ |
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// send http header: |
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$httpHeader = sprintf( |
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'HTTP/%s %d %s', |
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$response->getProtocolVersion(), |
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$response->getStatus(), |
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$response->getStatusMessage() |
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); |
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header($httpHeader, true); |
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// send additional headers: |
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foreach ($response->getHeaders() as $name => $value) { |
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header(sprintf('%s: %s', $name, $value), true); |
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} |
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// send body: |
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echo $response->getBody(); |
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} |
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} |
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elevenone /
stardust
