fileuploader.php

См. документацию.

<?php
 
namespace Bitrix\Calendar\Integration\Disk;
 
use Bitrix\Disk\Driver;
use Bitrix\Disk\Ui\Text;
use Bitrix\Main\Error;
use Bitrix\Main\Loader;
use Bitrix\Main\Result;
 
final class FileUploader
{
    private const NEW_FILE_PREFIX = 'n';
 
    private readonly int $userId;
 
    public function __construct(int $userId)
    {
        $this->userId = $userId;
    }

    public function addFile(int $fileId): Result
    {
        $result = new Result();
 
        if (!$this->isAvailable())
        {
            return $result->addError(new Error('Module disk not available'));
        }
 
        $storage = Driver::getInstance()->getStorageByUserId($this->userId);
        if (!$storage)
        {
            return $result->addError(new Error('Storage not found'));
        }
 
        $folder = $storage->getFolderForUploadedFiles();
        if (!$folder)
        {
            return $result->addError(new Error('Upload folder not found'));
        }
 
        if (!$folder->canAdd($storage->getSecurityContext($this->userId)))
        {
            return $result->addError(new Error('Access denied'));
        }
 
        $fileArray = \CFile::GetFileArray($fileId);
 
        $addedFile = $folder->addFile(
            [
                'NAME' => Text::correctFilename($fileArray['ORIGINAL_NAME']),
                'FILE_ID' => $fileId,
                'CONTENT_PROVIDER' => null,
                'SIZE' => $fileArray['FILE_SIZE'],
                'CREATED_BY' => $this->userId,
                'UPDATE_TIME' => null,
            ],
            [],
            true,
        );
 
        if (!$addedFile)
        {
            return $result->addError(new Error('Error while uploading file'));
        }
 
        return $result->setData([
            'FILE' => $addedFile,
            'ATTACHMENT_ID' => self::NEW_FILE_PREFIX . $addedFile->getId(),
        ]);
    }

    private function isAvailable(): bool
    {
        return Loader::includeModule('disk');
    }
}