public function request()
{
return function (ServerRequestInterface $req, ResponseInterface $res, $args) {
$preset = $args['preset'];
$file = $args['file'];
try {
$final_file = $this->imagecache->handleRequest($preset, $file);
} catch (InvalidPresetException $e) {
$res->getBody()->write($e->getMessage());
return $res->withStatus(404);
} catch (NotFoundException $e) {
$res->getBody()->write($e->getMessage());
return $res->withStatus(404);
} catch (RuntimeException $e) {
$res->getBody()->write($e->getMessage());
return $res->withStatus(500);
}
$transfer = new Transfer($final_file);
foreach ($transfer->getHeaders() as $key => $value) {
$res = $res->withHeader($key, $value);
}
return $res->withStatus($transfer->getStatus())->withBody(new LazyOpenStream($final_file, 'r'));
};
}
