/**
* Invoke the application.
*
* - Convert the PSR request/response into CakePHP equivalents.
* - Create the controller that will handle this request.
* - Invoke the controller.
*
* @param \Psr\Http\Message\ServerRequestInterface $request The request
* @param \Psr\Http\Message\ResponseInterface $response The response
* @param callable $next The next middleware
* @return \Psr\Http\Message\ResponseInterface
*/
public function __invoke(ServerRequestInterface $request, ResponseInterface $response, $next)
{
// Convert the request/response to CakePHP equivalents.
$cakeRequest = RequestTransformer::toCake($request);
$cakeResponse = ResponseTransformer::toCake($response);
// Dispatch the request/response to CakePHP
$cakeResponse = $this->getDispatcher()->dispatch($cakeRequest, $cakeResponse);
// Convert the response back into a PSR7 object.
return ResponseTransformer::toPsr($cakeResponse);
}
/**
* Handle an exception and generate an error response
*
* @param \Exception $exception The exception to handle.
* @param \Psr\Http\Message\ServerRequestInterface $request The request.
* @param \Psr\Http\Message\ResponseInterface $response The response.
* @return \Psr\Http\Message\ResponseInterface A response
*/
public function handleException($exception, $request, $response)
{
$renderer = $this->getRenderer($exception);
try {
$res = $renderer->render();
$this->logException($request, $exception);
return ResponseTransformer::toPsr($res);
} catch (\Exception $e) {
$this->logException($request, $e);
$body = $response->getBody();
$body->write('An Internal Server Error Occurred');
$response = $response->withStatus(500)->withBody($body);
}
return $response;
}
