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<?php |
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namespace LunixREST\Router; |
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use LunixREST\AccessControl\AccessControl; |
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use LunixREST\Endpoint\Endpoint; |
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use LunixREST\Endpoint\EndpointFactory; |
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use LunixREST\Endpoint\Exceptions\UnknownEndpointException; |
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use LunixREST\Exceptions\AccessDeniedException; |
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use LunixREST\Exceptions\InvalidAPIKeyException; |
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use LunixREST\Exceptions\ThrottleLimitExceededException; |
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use LunixREST\Request\Request; |
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use LunixREST\Response\Exceptions\UnknownResponseTypeException; |
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use LunixREST\Response\Response; |
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use LunixREST\Response\ResponseData; |
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use LunixREST\Response\ResponseFactory; |
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use LunixREST\Throttle\Throttle; |
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/** |
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* Class Router |
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* @package LunixREST\Router |
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*/ |
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class Router { |
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/** |
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* @var AccessControl |
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*/ |
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protected $accessControl; |
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/** |
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* @var Throttle |
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*/ |
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protected $throttle; |
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/** |
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* @var ResponseFactory |
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*/ |
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protected $responseFactory; |
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/** |
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* @var EndpointFactory |
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*/ |
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private $endpointFactory; |
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/** |
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* @param AccessControl $accessControl |
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* @param Throttle $throttle |
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* @param ResponseFactory $responseFactory |
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* @param EndpointFactory $endpointFactory |
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*/ |
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public function __construct(AccessControl $accessControl, Throttle $throttle, ResponseFactory $responseFactory, EndpointFactory $endpointFactory){ |
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$this->accessControl = $accessControl; |
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$this->throttle = $throttle; |
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$this->responseFactory = $responseFactory; |
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$this->endpointFactory = $endpointFactory; |
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} |
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/** |
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* @param Request $request |
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* @return Response |
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* @throws AccessDeniedException |
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* @throws InvalidAPIKeyException |
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* @throws ThrottleLimitExceededException |
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* @throws UnknownEndpointException |
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* @throws UnknownResponseTypeException |
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*/ |
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public function route(Request $request): Response{ |
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$this->validateKey($request); |
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$this->validateExtension($request); |
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$endpoint = $this->endpointFactory->getEndpoint($request->getEndpoint(), $request->getVersion()); |
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if($this->throttle->shouldThrottle($request)) { |
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throw new ThrottleLimitExceededException('Request limit exceeded'); |
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} |
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if(!$this->accessControl->validateAccess($request)) { |
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throw new AccessDeniedException("API key does not have the required permissions to access requested resource"); |
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} |
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$this->throttle->logRequest($request); |
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$responseData = $this->executeEndpoint($endpoint, $request); |
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return $this->responseFactory->getResponse($responseData, $request->getExtension()); |
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} |
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/** |
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* @param Request $request |
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* @throws InvalidAPIKeyException |
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*/ |
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protected function validateKey(Request $request){ |
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if(!$this->accessControl->validateKey($request->getApiKey())){ |
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throw new InvalidAPIKeyException('Invalid API key'); |
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} |
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} |
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/** |
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* @param Request $request |
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* @throws UnknownResponseTypeException |
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*/ |
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protected function validateExtension(Request $request) { |
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$formats = $this->responseFactory->getSupportedTypes(); |
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if(!$formats || !in_array($request->getExtension(), $formats)){ |
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throw new UnknownResponseTypeException('Unknown response format: ' . $request->getExtension()); |
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} |
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} |
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protected function executeEndpoint(Endpoint $endpoint, Request $request): ResponseData { |
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return call_user_func([$endpoint, $request->getMethod()], [$request]); |
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} |
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} |
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This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.