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<?php
/*
* 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!
*/
namespace TYPO3\CMS\Backend\Backend\Avatar;
use TYPO3\CMS\Core\Database\Connection;
use TYPO3\CMS\Core\Database\ConnectionPool;
use TYPO3\CMS\Core\Resource\Exception\FileDoesNotExistException;
use TYPO3\CMS\Core\Resource\ProcessedFile;
use TYPO3\CMS\Core\Resource\ResourceFactory;
use TYPO3\CMS\Core\Utility\GeneralUtility;
/**
* Avatar Provider used for rendering avatars based on local files (based on FAL), stored in the be_users.avatar
* relation field with sys_file_reference.
*/
class DefaultAvatarProvider implements AvatarProviderInterface
{
/**
* Return an Image object for rendering the avatar, based on a FAL-based file
*
* @param array $backendUser be_users record
* @param int $size
* @return Image|null
*/
public function getImage(array $backendUser, $size)
{
$fileUid = $this->getAvatarFileUid($backendUser['uid']);
if ($fileUid === 0) {
// Early return if there is no valid image file UID
return null;
}
// Get file object
try {
$file = GeneralUtility::makeInstance(ResourceFactory::class)->getFileObject($fileUid);
$processedImage = $file->process(
ProcessedFile::CONTEXT_IMAGECROPSCALEMASK,
['width' => $size . 'c', 'height' => $size . 'c']
);
$publicUrl = $processedImage->getPublicUrl();
if ($publicUrl) {
$image = GeneralUtility::makeInstance(
Image::class,
$publicUrl,
$processedImage->getProperty('width'),
$processedImage->getProperty('height')
);
} else {
$image = null;
}
} catch (FileDoesNotExistException $e) {
// No image found
$image = null;
}
return $image;
}
/**
* Get the sys_file UID of the avatar of the given backend user ID
*
* @param int $backendUserId the UID of the be_users record
* @return int the sys_file UID or 0 if none found
*/
protected function getAvatarFileUid($backendUserId)
{
$queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable('sys_file_reference');
$fileUid = $queryBuilder
->select('uid_local')
->from('sys_file_reference')
->where(
$queryBuilder->expr()->eq(
'tablenames',
$queryBuilder->createNamedParameter('be_users')
),
$queryBuilder->expr()->eq(
'fieldname',
$queryBuilder->createNamedParameter('avatar')
),
$queryBuilder->expr()->eq(
'uid_foreign',
$queryBuilder->createNamedParameter((int)$backendUserId, Connection::PARAM_INT)
)
)
->executeQuery()
->fetchOne();
return (int)$fileUid;
}
}