PHP Download Controller

DownloadController.php

<?php

use Website\Controller\Action;
use Pimcore\Model\Asset;

class DownloadController extends Action {

	private $file;
	private $asset;
	private $filename;
	private $mimetype;

	public function init() {
		parent::init();

		$this->removeViewRenderer();

		try {
			$asset = Asset::getById($this->getParam("id"));

			if ($asset instanceof Asset) {
				$this->file = $asset->getFileSystemPath();
				$this->filename = $asset->getFilename();
				$this->mimetype = $asset->getMimetype();
				$this->asset = $asset;
			} else {
				throw new \Exception($asset);
			}
		} catch (\Exception $e) {
			throw new \Exception($e);
			exit;
		}
		$this->asset = $asset;
	}

	public function downloadAction() {
		header('Content-type: ' . $this->mimetype);
		header("Content-Length: " . filesize($this->file));
		header('Content-Disposition: attachment; filename="' . $this->filename . '"');
		readfile($this->file);
		exit;
	}

}

add namespaces