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<?php |
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declare(strict_types=1); |
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namespace TechDeCo\ElasticApmAgent\Convenience\Middleware; |
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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 Ramsey\Uuid\Uuid; |
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use TechDeCo\ElasticApmAgent\Client; |
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use TechDeCo\ElasticApmAgent\Convenience\OpenTransaction; |
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use TechDeCo\ElasticApmAgent\Exception\ClientException; |
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use TechDeCo\ElasticApmAgent\Message\Context; |
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use TechDeCo\ElasticApmAgent\Message\Error as ErrorMessage; |
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use TechDeCo\ElasticApmAgent\Message\Exception; |
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use TechDeCo\ElasticApmAgent\Message\Process; |
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use TechDeCo\ElasticApmAgent\Message\Request; |
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use TechDeCo\ElasticApmAgent\Message\Service; |
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use TechDeCo\ElasticApmAgent\Message\StackTraceFrame; |
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use TechDeCo\ElasticApmAgent\Message\System; |
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use TechDeCo\ElasticApmAgent\Message\Timestamp; |
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use TechDeCo\ElasticApmAgent\Message\Url; |
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use TechDeCo\ElasticApmAgent\Request\Error as ErrorRequest; |
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use Throwable; |
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use function array_filter; |
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use function array_map; |
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use function get_class; |
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use function implode; |
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final class ErrorMiddleware extends Middleware |
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{ |
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/** |
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* @var Context |
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*/ |
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private $context; |
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public function __construct( |
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Client $client, |
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Service $service, |
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Process $process, |
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System $system, |
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?Context $context = null |
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) { |
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parent::__construct($client, $service, $process, $system); |
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$this->context = $context ?? new Context(); |
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} |
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/** |
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* @throws ClientException |
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* @throws Throwable |
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*/ |
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public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
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{ |
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try { |
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return $handler->handle($request); |
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} catch (Throwable $t) { |
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$message = $this->createMessage($request, $t); |
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$request = (new ErrorRequest($this->service, $message)) |
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->onSystem($this->system) |
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->inProcess($this->process); |
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$this->client->sendError($request); |
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throw $t; |
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} |
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} |
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private function createMessage(ServerRequestInterface $request, Throwable $throwable): ErrorMessage |
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{ |
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$message = ErrorMessage::fromException($this->createException($throwable), new Timestamp()) |
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->withId(Uuid::uuid4()) |
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->inContext($this->createContext($request)); |
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/** @var OpenTransaction|null $transaction */ |
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$transaction = $request->getAttribute(TransactionMiddleware::TRANSACTION_ATTRIBUTE); |
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if ($transaction !== null) { |
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$message = $message->correlatedToTransactionId($transaction->getId()); |
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} |
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return $message; |
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} |
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private function createException(Throwable $throwable): Exception |
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{ |
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return (new Exception($throwable->getMessage())) |
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->withCode($throwable->getCode()) |
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->withStackTraceFrame(...$this->createStackTrace($throwable)) |
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->asType(get_class($throwable)); |
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} |
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/** |
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* @return StackTraceFrame[] |
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*/ |
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private function createStackTrace(Throwable $throwable): array |
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{ |
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return array_map( |
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function (array $frame): StackTraceFrame { |
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$function = implode('::', array_filter([ |
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$frame['class'] ?? null, |
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$frame['function'] ?? null, |
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])); |
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return (new StackTraceFrame( |
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$frame['file'] ?? '<undefined>', |
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$frame['line'] ?? 0 |
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)) |
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->inFunction($function); |
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}, |
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$throwable->getTrace() |
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); |
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} |
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private function createContext(ServerRequestInterface $request): Context |
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{ |
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$request = (new Request( |
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$request->getMethod(), |
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Url::fromUri($request->getUri()) |
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)) |
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->onHttpVersion($request->getProtocolVersion()); |
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return $this->context->withRequest($request); |
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} |
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} |
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frankkoornstra /
elastic-apm-agent
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