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<?php |
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/** |
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* HTTP server wrapper |
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* User: moyo |
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* Date: 29/09/2017 |
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* Time: 3:42 PM |
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*/ |
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namespace Carno\HRPC\Handlers; |
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use Carno\Chain\Layered; |
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use Carno\Coroutine\Context; |
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use Carno\HRPC\Client\Chips\ErrorsHelper; |
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use Carno\HRPC\Client\Contracts\Defined; |
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use Carno\HRPC\Exception\ServerUnavailableException; |
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use Carno\HTTP\Server\Connection; |
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use Carno\HTTP\Standard\Response as HResponse; |
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use Carno\RPC\Errors\GenericError; |
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use Carno\RPC\Exception\IllegalRequestSyntaxException; |
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use Carno\RPC\Exception\RemoteLogicException; |
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use Carno\RPC\Exception\RemoteSystemException; |
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use Carno\RPC\Exception\RequestTargetNotFoundException; |
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use Carno\RPC\Protocol\Request; |
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use Carno\RPC\Protocol\Response; |
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use Throwable; |
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class ServerWrapper implements Layered |
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{ |
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use ErrorsHelper; |
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/** |
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* operated connection |
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*/ |
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public const CONNECTION = 'conn-session'; |
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/** |
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* request/response for connection |
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*/ |
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public const REQUESTING = 'conn-request'; |
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public const RESPONDING = 'conn-response'; |
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/** |
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* @param Connection $ingress |
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* @param Context $ctx |
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* @return Request |
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*/ |
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public function inbound($ingress, Context $ctx) : Request |
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{ |
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$ctx->set(self::CONNECTION, $ingress); |
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$ctx->set(self::REQUESTING, $sr = $ingress->request()); |
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switch ($sr->getMethod()) { |
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case 'POST': |
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$content = $sr->getHeaderLine('Content-Type'); |
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$payload = (string) $sr->getBody(); |
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break; |
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default: |
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throw new IllegalRequestSyntaxException("METHOD:{$sr->getMethod()}"); |
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} |
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switch (substr($path = $sr->getUri()->getPath(), 1, ($crp = strpos($path, '/', 1)) - 1)) { |
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case 'invoke': |
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$uri = substr($path, $crp + 1); |
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goto COMMAND_IVK; |
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break; |
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default: |
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throw new IllegalRequestSyntaxException("PATH:{$path}"); |
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} |
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COMMAND_IVK: |
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list($service, $method) = explode('/', $uri); |
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return |
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(new Request($ingress->serviced() ?: $sr->getHeaderLine('Host'), ucfirst($service), lcfirst($method))) |
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->setJsonc($content === Defined::V_TYPE_JSON) |
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->setPayload($payload) |
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; |
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} |
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/** |
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* @param Response $response |
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* @param Context $ctx |
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* @return HResponse |
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*/ |
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public function outbound($response, Context $ctx) : HResponse |
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{ |
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if ($response instanceof Response) { |
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$http = new HResponse( |
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200, |
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[ |
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'Content-Type' => $response->isJsonc() ? Defined::V_TYPE_JSON : Defined::V_TYPE_PROTO, |
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], |
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$response->getPayload() |
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); |
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} else { |
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$http = new HResponse(500, $this->errorHeaders('Invalid service response')); |
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} |
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$ctx->set(self::RESPONDING, $http); |
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return $http; |
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} |
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/** |
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* @param Throwable $e |
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* @param Context $ctx |
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* @throws Throwable |
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*/ |
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public function exception(Throwable $e, Context $ctx) : void |
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{ |
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/** |
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* @var Connection $ingress |
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*/ |
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$ingress = $ctx->get(self::CONNECTION); |
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if ($e instanceof IllegalRequestSyntaxException) { |
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$r = new HResponse(400); |
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} elseif ($e instanceof RequestTargetNotFoundException) { |
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$r = new HResponse(404); |
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} elseif ($e instanceof GenericError) { |
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$r = new HResponse( |
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$e instanceof RemoteLogicException ? 500 : 200, |
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$this->errorHeaders($e->getMessage(), $e->getCode()) |
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); |
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} elseif ($e instanceof ServerUnavailableException) { |
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$r = new HResponse(503); |
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} else { |
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$r = new HResponse( |
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500, |
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$e instanceof RemoteSystemException |
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? $this->errorHeaders($e->getMessage(), $e->getCode()) |
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: $this->errorHeaders( |
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sprintf('%s::%s::%s', $ingress->serviced(), get_class($e), $e->getMessage()), |
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$e->getCode() |
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) |
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); |
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} |
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$ctx->set(self::RESPONDING, $r); |
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throw $e; |
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} |
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} |
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carno-php /
hrpc
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