Complete page only available for registered users (assets included)

The CMS Questions
1

I want to create a page that should only be viewable by logged in users. Via Protecting files | Kirby CMS I can only save the images for one page. However, I would like to secure all images and all other assets from unauthorized access (they should be displayed normally for logged-in users and not be offered as a download). How do I do that?

2

This should work:

Plugin:

<?php

use Kirby\Cms\Response;

Kirby::plugin('cookbook/files-firewall', [
    'routes'      => [
        [
            'pattern' => 'content/downloads/(:any)',
            'action'  => function ($filename) {

                if (kirby()->user() &&
                    $file = page('downloads')?->files()?->findBy('filename', $filename)) {
                    return Response::file($file->root());
                }
                return false;
            },
        ],
    ],
    'components'  => [
        'file::url' => function (Kirby $kirby, $file) {
            if ($file->template() === 'protected') {
                return $kirby->url() . '/content/' . $file->page()->id() . '/' . $file->filename();
            }
            return $kirby->nativeComponent('file::url')($kirby, $file);
        },
        'file::version' => function ($kirby, Kirby\Cms\File $file, array $options = []) {

            static $original;

            // if the file is protected, return the original file
            if ($file->template() === 'protected') {
                return $file;
            }
            // if static $original is null, get the original component
            if ($original === null) {
                $original = $kirby->nativeComponent('file::version');
            }

            // and return it with the given options
            return $original($kirby, $file, $options);
        },
    ],
]);

Template:

<?php snippet('header') ?>

<section>
  <h1 class="h1"><?= $page->title()->html() ?></h1>
  <ul class="file-list">
    <?php foreach( $page->files()->template('protected') as $file ) : ?>
      <li><?= $file ?></li>
    <?php endforeach ?>
  </ul>
</section>

<?php snippet('footer') ?>

Note that you cannot use thumbs for images in this case.