def upload():
    (new_filename, old_filename, length,
     mime_type) = current.plugin_ckeditor.handle_upload()
    
    title = os.path.splitext(old_filename)[0]
    
    result = current.plugin_ckeditor.settings.table_upload.validate_and_insert(
        title=title,
        filename=old_filename,
        upload=new_filename,
        flength=length,
        mime_type=mime_type
    )
    
    text = ''
    url = URL(*current.plugin_ckeditor.settings.download_url,
              args=[new_filename])
    
    if not result.id:
        text = result.errors

    return dict(text=text, cknum=request.vars.CKEditorFuncNum, url=url)