Facebook video integration in TYPO3 (needs some love for FE rendering)

ext_tables.php

<?php
$GLOBALS['TYPO3_CONF_VARS']['SYS']['fal']['onlineMediaHelpers']['facebook'] = \Vendor\ExtensionKey\Helpers\FacebookVideoHelper::class;

$rendererRegistry = \TYPO3\CMS\Core\Resource\Rendering\RendererRegistry::getInstance();
$rendererRegistry->registerRendererClass(
    \Vendor\ExtensionKey\Rendering\FacebookVideoRenderer::class
);

// Register an custom mime-type for your videos
$GLOBALS['TYPO3_CONF_VARS']['SYS']['FileInfo']['fileExtensionToMimeType']['facebook'] = 'video/facebook';

// Register your custom file extension as allowed media file
$GLOBALS['TYPO3_CONF_VARS']['SYS']['mediafile_ext'] .= ',facebook';

FacebookVideoHelper.php

<?php
namespace Vendor\ExtensionKey\Helpers;

/**
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */

use TYPO3\CMS\Core\Resource\OnlineMedia\Helpers\AbstractOEmbedHelper;
use TYPO3\CMS\Core\Resource\File;
use TYPO3\CMS\Core\Resource\Folder;
use TYPO3\CMS\Core\Utility\GeneralUtility;

/**
 * Class FacebookVideoHelper
 *
 * @author Thomas Löffler <loeffler@spooner-web.de>
 */
class FacebookVideoHelper extends AbstractOEmbedHelper {

    /**
     * @param string $url
     * @param \TYPO3\CMS\Core\Resource\Folder $targetFolder
     * @return File
     */
    public function transformUrlToFile($url, \TYPO3\CMS\Core\Resource\Folder $targetFolder)
    {
        $videoId = null;
        // Try to get the YouTube code from given url.
        // These formats are supported with and without http(s)://
        // - facebook.com/<site>/videos/<code> # Share URL
        if (preg_match('/facebook\.com\/.*\/videos\/*([0-9]+)/i', $url, $matches)) {
            $videoId = $matches[1];
        }
        if (empty($videoId)) {
            return null;
        }

        return $this->transformMediaIdToFile($videoId, $targetFolder, $this->extension);
    }

    /**
     * Transform mediaId to File
     *
     * @param string $mediaId
     * @param Folder $targetFolder
     * @param string $fileExtension
     * @return File
     */
    protected function transformMediaIdToFile($mediaId, Folder $targetFolder, $fileExtension)
    {
        $file = $this->findExistingFileByOnlineMediaId($mediaId, $targetFolder, $fileExtension);

        // no existing file create new
        if ($file === null) {
            $oEmbed = $this->getOEmbedData($mediaId);
            if (!empty($oEmbed) && isset($oEmbed['name'])) {
                $fileName = $oEmbed['name'] . '.' . $fileExtension;
            } else {
                $fileName = $mediaId . '.' . $fileExtension;
            }
            $file = $this->createNewFile($targetFolder, $fileName, $mediaId);
        }

        return $file;
    }

    /**
     * Get meta data for OnlineMedia item
     * Using the meta data from oEmbed
     *
     * @param File $file
     * @return array with metadata
     */
    public function getMetaData(File $file)
    {
        $metadata = [];

        $oEmbed = $this->getOEmbedData($this->getOnlineMediaId($file));

        if ($oEmbed) {
            $metadata['width'] = (int)$oEmbed['width'];
            $metadata['height'] = (int)$oEmbed['height'];
            if (empty($file->getProperty('title')) && isset($oEmbed['name'])) {
                $metadata['title'] = strip_tags($oEmbed['name']);
            }
            if (empty($file->getProperty('description')) && isset($oEmbed['description'])) {
                $metadata['description'] = strip_tags($oEmbed['description']);
            }
            $metadata['author'] = $oEmbed['from']['name'];
        }

        return $metadata;
    }

    /**
     * @param \TYPO3\CMS\Core\Resource\File $file
     * @param bool $relativeToCurrentScript
     * @return string
     */
    public function getPublicUrl(\TYPO3\CMS\Core\Resource\File $file, $relativeToCurrentScript = false)
    {
        $videoId = $this->getOnlineMediaId($file);
        $videoLink = sprintf('https://www.facebook.com/video.php?v=%s', $videoId);
        return 'https://www.facebook.com/v2.5/plugins/video.php?href=' . urlencode($videoLink);
    }

    /**
     * @param \TYPO3\CMS\Core\Resource\File $file
     * @return string
     */
    public function getPreviewImage(\TYPO3\CMS\Core\Resource\File $file)
    {
        $videoId = $this->getOnlineMediaId($file);
        $temporaryFileName = $this->getTempFolderPath() . 'facebook_' . md5($videoId) . '.jpg';

        if (!file_exists($temporaryFileName)) {
            $videoInformation = $this->getOEmbedData($videoId);
            if (!empty($videoInformation['format'])) {
                $biggestFormat = array_pop($videoInformation['format']);
                $previewImage = GeneralUtility::getUrl($biggestFormat['picture']);
                if ($previewImage !== false) {
                    file_put_contents($temporaryFileName, $previewImage);
                    GeneralUtility::fixPermissions($temporaryFileName);
                }
            }
        }

        return $temporaryFileName;
    }

    /**
     * @param string $mediaId
     * @param string $format
     * @return string
     */
    public function getOEmbedUrl($mediaId, $format = 'json')
    {
        return 'https://graph.facebook.com/' . $mediaId . '/';
    }
}

FacebookVideoRenderer.php

<?php
namespace Vendor\ExtensionKey\Rendering;

/**
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */

use TYPO3\CMS\Core\Resource\File;
use TYPO3\CMS\Core\Resource\FileReference;
use TYPO3\CMS\Core\Resource\FileInterface;
use TYPO3\CMS\Core\Resource\Rendering\FileRendererInterface;
use TYPO3\CMS\Core\Resource\OnlineMedia\Helpers\OnlineMediaHelperInterface;
use TYPO3\CMS\Core\Resource\OnlineMedia\Helpers\OnlineMediaHelperRegistry;

/**
 * Class FacebookVideoRenderer
 *
 * @author Thomas Löffler <loeffler@spooner-web.de>
 */
class FacebookVideoRenderer implements FileRendererInterface {

    /**
     * @var OnlineMediaHelperInterface
     */
    protected $onlineMediaHelper;

    /**
     * @return integer
     */
    public function getPriority()
    {
        return 1;
    }

    /**
     * @param \TYPO3\CMS\Core\Resource\FileInterface $file
     * @return boolean
     */
    public function canRender(\TYPO3\CMS\Core\Resource\FileInterface $file)
    {
        return ($file->getMimeType() === 'video/facebook' || $file->getExtension() === 'facebook') && $this->getOnlineMediaHelper($file) !== false;
    }

    /**
     * Get online media helper
     *
     * @param FileInterface $file
     * @return bool|OnlineMediaHelperInterface
     */
    protected function getOnlineMediaHelper(FileInterface $file)
    {
        if ($this->onlineMediaHelper === null) {
            $orgFile = $file;
            if ($orgFile instanceof FileReference) {
                $orgFile = $orgFile->getOriginalFile();
            }
            if ($orgFile instanceof File) {
                $this->onlineMediaHelper = OnlineMediaHelperRegistry::getInstance()->getOnlineMediaHelper($orgFile);
            } else {
                $this->onlineMediaHelper = false;
            }
        }

        return $this->onlineMediaHelper;
    }

    /**
     * @param \TYPO3\CMS\Core\Resource\FileInterface $file
     * @param int|string $width
     * @param int|string $height
     * @param array $options
     * @param bool $usedPathsRelativeToCurrentScript
     * @return string
     */
    public function render(\TYPO3\CMS\Core\Resource\FileInterface $file, $width, $height, array $options = [], $usedPathsRelativeToCurrentScript = false)
    {
        // Due to the rendering via fluid_styled_content, text/media element and click-enlarge the rendering happens not here
        return '';
    }


}

fsc.ts

lib.fluidContent.settings.media.videopopup {
    typolink {
        parameter {
            cObject = CASE
            cObject {
                key.data = file:current:extension

                facebook = TEXT
                facebook.data = file:current:contents
                facebook.wrap = https://www.facebook.com/v2.5/plugins/video.php?href=https%3A%2F%2Fwww.facebook.com%2Fvideo.php%3Fv%3D|
            }
        }

        ATagParams = data-toggle="lightbox" data-title="{file:current:title}" data-footer="{file:current:description}"
        ATagParams.insertData = 1
    }
}