<?php
namespace Stemcell\ProductImport\Plugin;

class UploaderPlugin
{
    public function beforeSave(
        \Magento\Framework\File\Uploader $subject,
        $destinationFolder,
        $newFileName = null
    ) {
        // 添加更多允许的扩展名
        $allowedExtensions = ['jpg', 'jpeg', 'gif', 'png', 'webp', 'bmp', 'tiff'];
        $subject->setAllowedExtensions($allowedExtensions);
        
        return [$destinationFolder, $newFileName];
    }
}