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<?php |
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declare(strict_types=1); |
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namespace LibraryCatalog\Service\Http; |
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use DI\Container; |
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use FastRoute\Dispatcher; |
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use LibraryCatalog\Controller\V1\Author; |
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use LibraryCatalog\Controller\V1\Book; |
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use LibraryCatalog\Controller\V1\Error; |
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use LibraryCatalog\Controller\V1\Index; |
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use Psr\Http\Message\RequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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class Router |
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{ |
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/** @var Container */ |
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protected Container $container; |
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/** @var Dispatcher */ |
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protected Dispatcher $dispatcher; |
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/** @var string */ |
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protected string $uri; |
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/** @var string */ |
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protected string $httpMethod; |
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/** @var array */ |
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protected array $serverParams; |
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/** |
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* Router constructor. |
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* @param Container $container |
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* @param string $uri |
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* @param string $httpMethod |
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* @param array $serverParams |
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*/ |
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public function __construct(Container $container, string $uri, string $httpMethod, array $serverParams) |
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{ |
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$this->container = $container; |
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$this->uri = $uri; |
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$this->httpMethod = $httpMethod; |
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$this->serverParams = $serverParams; |
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} |
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/** |
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* @return ResponseInterface |
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* @throws \DI\DependencyException |
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* @throws \DI\NotFoundException |
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* @throws \LibraryCatalog\Exception\HttpUnauthorizedException |
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*/ |
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public function dispatch(): ResponseInterface |
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{ |
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// Prepare request with extracted Auth. |
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$psr17Factory = new \Nyholm\Psr7\Factory\Psr17Factory(); |
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$request = $psr17Factory->createRequest($this->httpMethod, $this->uri); |
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if (isset($this->serverParams['HTTP_AUTHORIZATION'])) { |
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// We could copy all headers but we take only what we want for speed optimization. |
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$request = $request->withHeader('Authorization', $this->serverParams['HTTP_AUTHORIZATION']); |
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} |
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$routeInfo = $this->getDispatcher()->dispatch($this->httpMethod, $this->uri); |
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switch ($routeInfo[0]) { |
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case Dispatcher::NOT_FOUND: |
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$response = (new Error($this->container, $request))->notFoundError($this->uri); |
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break; |
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case Dispatcher::METHOD_NOT_ALLOWED: |
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$response = (new Error($this->container, $request)) |
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->error($this->uri, 405, 'Method not allowed'); |
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break; |
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case Dispatcher::FOUND: |
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try { |
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$response = $this->handle($routeInfo[1], $routeInfo[2], $request); |
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} catch (\LibraryCatalog\Exception\HttpBadRequestException $e) { |
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$response = (new Error($this->container, $request)) |
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->badRequestError($this->uri, $e->getMessage()); |
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} catch (\LibraryCatalog\Exception\HttpUnauthorizedException $e) { |
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$response = (new Error($this->container, $request)) |
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->unauthorizedError($this->uri, $e->getMessage()); |
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} catch (\Exception | \Throwable $e) { |
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//@todo Log |
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$response = (new Error($this->container, $request))->systemError($this->uri); |
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} |
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break; |
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default: |
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// Undefined behavior. |
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$response = (new Error($this->container, $request)) |
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->systemError($this->uri, 'Undefined behavior'); |
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break; |
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} |
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return $response; |
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} |
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/** |
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* @param string $handler |
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* @param array $params |
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* @param RequestInterface $request |
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* @return ResponseInterface |
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* @throws \DI\DependencyException |
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* @throws \DI\NotFoundException |
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* @throws \LibraryCatalog\Controller\TransformerException |
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* @throws \LibraryCatalog\Exception\HttpUnauthorizedException |
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* @throws \Rakit\Validation\RuleQuashException |
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*/ |
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protected function handle(string $handler, array $params, RequestInterface $request): ResponseInterface |
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{ |
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switch ($handler) { |
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case 'index': |
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$response = (new Index($this->container, $request))->indexAction(); |
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break; |
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case 'healthcheck': |
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$response = (new Index($this->container, $request))->healthcheckAction(); |
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break; |
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case 'get_author_handler': |
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$response = (new Author($this->container, $request)) |
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->getOneHandler($this->uri, $params['id']); |
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break; |
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case 'post_author_handler': |
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$response = (new Author($this->container, $request))->postOneHandler( |
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$this->uri, |
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$this->container->get('HttpTransformer') |
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->deserialize($this->container->get('RawInput')->get()), |
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); |
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break; |
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case 'get_book_handler': |
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$response = (new Book($this->container, $request)) |
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->getOneHandler($this->uri, $params['id']); |
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break; |
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case 'post_book_handler': |
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$response = (new Book($this->container, $request))->postOneHandler( |
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$this->uri, |
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$this->container->get('HttpTransformer') |
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->deserialize($this->container->get('RawInput')->get()), |
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); |
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break; |
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default: |
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// Undefined behavior. |
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$response = (new Error($this->container, $request)) |
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->systemError($this->uri, 'Undefined route'); |
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break; |
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} |
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return $response; |
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} |
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/** |
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* @return Dispatcher |
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*/ |
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protected function getDispatcher(): Dispatcher |
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{ |
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if (!isset($this->dispatcher)) { |
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$this->dispatcher = \FastRoute\simpleDispatcher(function (\FastRoute\RouteCollector $r) { |
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$r->addRoute('GET', '/', 'index'); |
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$r->addRoute('GET', '/healthcheck', 'healthcheck'); |
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$r->addRoute('GET', '/api/v1/healthcheck', 'healthcheck'); |
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$r->addRoute('GET', '/author/{id:\d+}', 'get_author_handler'); |
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$r->addRoute('GET', '/api/v1/author/{id:\d+}', 'get_author_handler'); |
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$r->addRoute('POST', '/author', 'post_author_handler'); |
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$r->addRoute('POST', '/api/v1/author', 'post_author_handler'); |
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$r->addRoute('GET', '/book/{id:\d+}', 'get_book_handler'); |
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$r->addRoute('GET', '/api/v1/book/{id:\d+}', 'get_book_handler'); |
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$r->addRoute('POST', '/book', 'post_book_handler'); |
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$r->addRoute('POST', '/api/v1/book', 'post_book_handler'); |
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}); |
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} |
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return $this->dispatcher; |
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} |
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} |
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alex-foleon /
service-library-catalog-php
