ringfinger/backend/classes/controller/QrCodeGetController.php

<?php

declare(strict_types=1);

final class QrCodeGetController extends AbstractController
{
	protected string $route = '/api/v1/fingerprint/{fingerprintId}/qr';

	private int $fingerprintId;

	public function __construct(string $url)
	{
		parent::__construct($url);

		$this->fingerprintId = (int)$this->getUrlParamInt('fingerprintId');
	}

	public function handle(): void
	{
		$filename = Setting::PATH_QR_CODES . (string)$this->fingerprintId . '.svg';

		if (!is_file($filename)) {
			$this->response = new ApiJsonResponse(ServerStatus::BAD_REQUEST);
			$this->response->setParameter('success', false);
			$this->response->setMessage(sprintf('No QR code for fingerprint id %d found!', $this->fingerprintId));

			return;
		}

		try {
			$this->response = new ApiSvgResponse();

			$file = @fopen($filename, 'r');
			$this->response->setContent(@fread($file, @filesize($filename)));
			@fclose($file);
		} catch (Throwable $e) {
			$this->response = new ApiJsonResponse(ServerStatus::INTERNAL_ERROR);
			$this->response->setParameter('success', false);
			$this->response->setMessage($e->getMessage());
		}
	}
}