irishdan / ResponsiveImageBundle

Controller/ImageController.php

<?php
/**
 * This file is part of the IrishDan\ResponsiveImageBundle package.
 *
 * (c) Daniel Byrne <danielbyrne@outlook.com>
 *
 * For the full copyright and license information, please view the LICENSE file that was distributed with this source
 * code.
 */

namespace IrishDan\ResponsiveImageBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\BinaryFileResponse;
use Symfony\Component\HttpFoundation\StreamedResponse;

/**
 * Class ImageController
 *
 * @package ResponsiveImageBundle\Controller
 */
class ImageController extends Controller
{
    /**
     * Generates a derivative image as a response
     *
     * @param $stylename
     * @param $filename
     */
    public function indexAction($stylename, $filename)
    {
        // Get image style information.
        if (empty($this->get('responsive_image.style_manager')->styleExists($stylename))) {
            throw $this->createNotFoundException('The style does not exist');
        }

        // Create image if the file exists.
        // $imageEntityClass = $this->getParameter('responsive_image.entity_class');

59% of this comment could be valid code. Did you maybe forget this after debugging?

        $imageObject = $this->get('responsive_image.file_to_object')->getObjectFromFilename($filename);

        if (!empty($imageObject)) {
            $generatedImageArray = $this->get('responsive_image.image_manager')->createStyledImages(
                $imageObject,
                [$stylename]
            );

            if (!empty($generatedImageArray[$stylename])) {
                $path = $generatedImageArray[$stylename];

                $cache  = $this->get('responsive_image.file_system_factory')->getAdapter();
                $stream = $cache->readStream($path);

                $response = new StreamedResponse();
                $response->headers->set('Content-Type', $cache->getMimetype($path));
                $response->headers->set('Content-Length', $cache->getSize($path));
                $response->setPublic();
                $response->setMaxAge(31536000);
                $response->setExpires(date_create()->modify('+1 years'));

                $response->setCallback(
                    function () use ($stream) {
                        if (ftell($stream['stream']) !== 0) {
                            rewind($stream['stream']);
                        }
                        fpassthru($stream['stream']);
                        fclose($stream['stream']);
                    }
                );

                return $response;
            }
            else {
                throw $this->createNotFoundException('Derived image could not be created');
            }
        }
        else {
            throw $this->createNotFoundException('The file does not exist');
        }
    }
}