group_id = params_kw.get('group_id', '') # Optional, if re-creating
downapp_id = params_kw.get('downapp_id', '')
project_name = params_kw.get('project_name', 'default')

if not downapp_id:
    return {"success": False, "message": "downapp_id 不能为空"}

# If group_id is provided, we might be refreshing the link for an existing group?
# For simplicity, always create new session for user.
result = await rl_verify_user((await get_userorgid()) or '0', group_id, downapp_id, project_name)
return result