Concrete5 fixing missing uploaded files single page controller

gistfile1.php

<?php

class TestFixfilesController extends Controller
{

    public function on_before_render()
    {
        $originalsDirectory = '/var/www/your-website.com/missing-files/';
        $originalFilenames = scandir($originalsDirectory);

        // Get the file ID's from the database
        $db = Loader::db();
        $result = $db->Execute('SELECT fID FROM Files');
        $array = $result->GetArray();

        // Put these in an array... (not necessary but cleaner)
        $fileIds = array();
        foreach ($array as $item) {
            $fileIds[] = (integer) $item['fID'];
        }

        // Instantiate all the file objects
        $files = array();
        foreach ($fileIds as $fileId) {
            $file = File::getbyID($fileId);
            $files[$fileId] = $file;
        }

        // Check which files are missing
        foreach ($files as $file) {
            $path = $file->getPath();
            if (! is_file($path)) {

                // Split the path into directory and filename
                $missingDirectory = dirname($path);
                $missingFilename = basename($path);

                // If the missing file is in the directory of original files
                if (in_array($missingFilename, $originalFilenames)) {

                    // Set the copy source and destination
                    $source = $originalsDirectory . $missingFilename; // Make sure $directory has a trailing slash
                    $destination = $path;

                    /*var_dump($source);
                    var_dump($destination);*/

                    // Create the nested directories if they do not exist
                    if (! is_dir($missingDirectory)) {
                        mkdir($missingDirectory, 0777, true); // Change permissions as required
                    }

                    // Copy the original file to where the missing file should be
                    $copied = copy($source, $destination);
                    if (! $copied) {
                        throw new Exception('Cannot copy original file to missing file path');
                    }
                }
            }
        }
        exit();
    }

}