492 lines
19 KiB
Python
492 lines
19 KiB
Python
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# =============================================================================
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# 企微IT智能服务台 — 外部系统统一门面服务
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# =============================================================================
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# 说明：
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# 1. 上层业务代码（AI Wingman、会话管理等）只依赖此类
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# 2. 按优先级链式查询（联软 → aTrust → eHR）
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# 3. 自动处理降级（系统不可用时跳到下一个）
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# 4. 所有方法均有详细行内注释（做什么 + 为什么）
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#
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# 使用方式：
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# from app.services.external import get_external_service
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# svc = get_external_service()
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# terminal = await svc.find_user_terminal("songxian")
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# =============================================================================
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import logging
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from typing import Any, Dict, List, Optional
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from app.services.cache_service import CacheService
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from app.services.external.base import (
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ExternalSystemAdapter,
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TerminalInfo,
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SecurityStatus,
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VpnSession,
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)
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from app.services.external.config import ExternalSystemConfig
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from app.services.external.cache import ExternalSystemCache
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from app.services.external.mock import MockAdapter
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logger = logging.getLogger(__name__)
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# =============================================================================
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# 全局单例（懒加载）
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# =============================================================================
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_external_service_instance: Optional["ExternalSystemService"] = None
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def get_external_service() -> "ExternalSystemService":
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"""获取外部系统服务单例
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做什么：返回全局唯一的 ExternalSystemService 实例
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为什么：避免重复初始化 Adapter，节省连接资源
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"""
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global _external_service_instance
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if _external_service_instance is None:
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raise RuntimeError(
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"ExternalSystemService 尚未初始化，"
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"请在应用启动时调用 init_external_service()"
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)
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return _external_service_instance
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def init_external_service(
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config: Optional[ExternalSystemConfig] = None,
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cache_service: Optional[Any] = None,
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) -> ExternalSystemService:
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"""初始化外部系统服务（应用启动时调用一次）
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做什么：根据配置创建所有 Adapter，组装成 ExternalSystemService
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为什么：集中初始化，避免分散在各处创建 Adapter 实例
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Args:
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config: 外部系统配置，None 时自动从环境变量加载
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cache_service: Redis 缓存服务实例，None 时降级为无缓存
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Returns:
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初始化完成的 ExternalSystemService 实例
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"""
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global _external_service_instance
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if config is None:
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from app.services.external.config import load_external_config
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config = load_external_config()
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# 创建缓存层
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cache = ExternalSystemCache(cache_service) if cache_service else None
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# 按优先级组装 Adapter 字典
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adapters: Dict[str, ExternalSystemAdapter] = {}
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if config.mock_mode:
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# Mock 模式：所有系统走 MockAdapter
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logger.info("[External] Mock模式已启用，所有外部系统查询走Mock数据")
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mock = MockAdapter()
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adapters = {
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"lianruan": mock,
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"huorong": mock,
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"atrust": mock,
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"ehr": mock,
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}
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else:
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# ── 联软（主映射源P0）─────────────────────────────
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# 做什么：创建联软 Adapter（凭证已配置时启用）
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# 为什么：联软的 strusername 字段是员工→终端映射最可靠来源
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if config.lianruan_enabled:
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from app.services.external.lianruan_adapter import LianruanAdapter
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adapters["lianruan"] = LianruanAdapter(config)
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logger.info("[External] 联软适配器已启用")
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else:
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logger.warning(
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"[External] 联软适配器未启用（凭证未配置），"
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"终端映射功能将降级"
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)
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# ── 火绒（安全源P0）─────────────────────────────────
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# 做什么：创建火绒 Adapter（凭证已配置时启用）
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# 为什么：火绒提供终端安全状态（病毒/漏洞/隔离），不参与映射
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if config.huorong_enabled:
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from app.services.external.huorong_adapter import HuorongAdapter
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adapters["huorong"] = HuorongAdapter(config)
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logger.info("[External] 火绒适配器已启用")
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else:
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logger.info("[External] 火绒适配器未启用（凭证未配置）")
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# ── aTrust（VPN源P1）────────────────────────────────
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# 做什么：创建 aTrust Adapter（凭证已配置时启用）
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# 为什么：aTrust 提供 VPN 在线状态和虚拟IP，用于远程员工排查
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if config.atrust_enabled:
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from app.services.external.atrust_adapter import ATrustAdapter
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adapters["atrust"] = ATrustAdapter(config)
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logger.info("[External] aTrust适配器已启用")
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else:
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logger.info("[External] aTrust适配器未启用（凭证未配置）")
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# ── eHR（辅助静态数据P2）───────────────────────────
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# 做什么：创建 eHR Adapter（凭证已配置时启用）
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# 为什么：eHR 提供员工基础信息和任职信息，作为静态数据补充
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if config.ehr_enabled:
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from app.services.external.ehr_adapter import EHRAdapter
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adapters["ehr"] = EHRAdapter(config)
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logger.info("[External] eHR适配器已启用")
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else:
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logger.info("[External] eHR适配器未启用（凭证未配置）")
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_external_service_instance = ExternalSystemService(adapters, cache)
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logger.info(
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f"[External] 服务初始化完成，已加载适配器: "
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f"{list(adapters.keys())}"
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)
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return _external_service_instance
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# =============================================================================
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# 统一门面服务
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# =============================================================================
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class ExternalSystemService:
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"""外部系统统一门面 — 上层业务唯一依赖的入口
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做什么：按优先级链式查询外部系统，对上层屏蔽底层差异
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为什么：上层代码不需要知道终端数据来自联软还是火绒
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查询优先级（映射场景）：
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1. 联软（主源，strusername 精确匹配）
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2. aTrust（VPN源，bindUserList 匹配）
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3. eHR（静态辅助，无终端数据，返回None）
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安全能力（仅火绒）：
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- 获取安全状态（病毒/漏洞）
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- 隔离/解除终端（需admin角色+二次确认）
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VPN能力（仅aTrust）：
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- 查询在线会话
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- 踢出用户
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"""
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def __init__(
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self,
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adapters: Dict[str, ExternalSystemAdapter],
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cache: Optional[ExternalSystemCache] = None,
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):
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"""初始化统一门面
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Args:
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adapters: 系统标识 → Adapter 实例 的字典
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cache: 外部数据缓存层（可为None，降级为无缓存）
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"""
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self._adapters = adapters
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self._cache = cache
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# =========================================================================
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# 终端查询（映射核心）
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# =========================================================================
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async def find_user_terminal(self, username: str) -> Optional[TerminalInfo]:
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"""查找用户终端 — 按优先级链式查询
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做什么：根据员工账号查找其使用的终端信息
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为什么：这是员工→终端映射的核心入口，坐席排查时首先需要知道
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员工用哪台电脑
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查询顺序：
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1. 联软 queryDevByParams(strusername=xxx) — 最精确
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2. aTrust queryAll(bindUserList) — VPN 场景补充
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3. eHR — 无终端数据，返回 None
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降级：某系统不可用时自动跳过，不影响整体结果。
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Args:
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username: 员工账号（如 'songxian'）
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Returns:
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TerminalInfo 或 None（所有系统均未找到）
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"""
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logger.info(f"[External] 查找用户终端: username={username}")
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# ── 第1优先级：联软（主映射源）────────────────────
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# 做什么：优先用联软查，它有 strusername 精确字段
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# 为什么：联软直接建立员工账号→终端的映射，比IP交叉匹配可靠
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lianruan = self._adapters.get("lianruan")
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if lianruan and lianruan.is_available:
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try:
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result = await self._query_with_cache(
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"lianruan", "get_terminal_by_user", username
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)
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if result:
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logger.info(
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f"[External] 联软命中: username={username}, "
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f"computer={result.computer_name}"
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)
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return result
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except Exception as e:
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# 联软不可用 → 降级到 aTrust，不阻断
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logger.warning(
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f"[External] 联软查询失败（降级到aTrust）: {e}"
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)
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else:
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logger.debug("[External] 联软不可用或未启用，跳过")
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# ── 第2优先级：aTrust（VPN源）─────────────────────
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# 做什么：联软未命中时，用 aTrust 查 VPN 终端
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# 为什么：远程办公员工可能不在联软覆盖范围内
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atrust = self._adapters.get("atrust")
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if atrust and atrust.is_available:
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try:
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result = await self._query_with_cache(
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"atrust", "get_terminal_by_user", username
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)
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if result:
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logger.info(
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f"[External] aTrust命中: username={username}, "
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f"vpn_ip={result.ip_addresses}"
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)
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return result
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except Exception as e:
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logger.warning(
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f"[External] aTrust查询失败（降级到eHR）: {e}"
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)
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else:
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logger.debug("[External] aTrust不可用或未启用，跳过")
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# ── 第3优先级：eHR（辅助静态数据）────────────────
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# 做什么：eHR 不提供终端数据，此方法返回 None
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# 为什么：保留接口一致性，未来可能扩展
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ehr = self._adapters.get("ehr")
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if ehr and ehr.is_available:
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result = await self._query_with_cache(
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"ehr", "get_terminal_by_user", username
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)
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if result:
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return result
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# 所有系统均未命中
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logger.info(f"[External] 所有系统均未找到用户终端: username={username}")
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return None
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async def get_terminal_detail(self, terminal_id: str) -> Optional[TerminalInfo]:
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"""查询终端详细信息（硬件/软件/网络配置）
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做什么：获取比 find_user_terminal 更详细的终端信息
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为什么：排查硬件故障（卡慢）时需要CPU/内存/磁盘使用率等数据
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优先联软（getDevAllInfo 比火绒 _info2 更详细）。
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Args:
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terminal_id: 终端在来源系统中的唯一ID
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Returns:
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TerminalInfo（含 hardware_summary）或 None
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"""
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# 联软详细信息最全（含主板/CPU/内存/硬盘/显示器）
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lianruan = self._adapters.get("lianruan")
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if lianruan and lianruan.is_available:
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try:
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return await lianruan.get_terminal_detail(terminal_id)
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except Exception as e:
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logger.warning(f"[External] 联软详细信息查询失败: {e}")
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# 火绒作为备选（_info2 含硬件/软件/网络配置）
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huorong = self._adapters.get("huorong")
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if huorong and huorong.is_available:
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try:
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return await huorong.get_terminal_detail(terminal_id)
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except Exception as e:
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logger.warning(f"[External] 火绒详细信息查询失败: {e}")
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return None
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# =========================================================================
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# 安全能力（仅火绒）
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# =========================================================================
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async def get_terminal_security(self, terminal_id: str) -> Optional[SecurityStatus]:
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"""获取终端安全状态
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做什么：查询终端的病毒事件、高危漏洞、隔离状态
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|
为什么：坐席排查安全问题时需要一目了然
|
|||
|
|
|
|||
|
|
仅火绒支持此能力。
|
|||
|
|
|
|||
|
|
Args:
|
|||
|
|
terminal_id: 火绒的 client_id
|
|||
|
|
|
|||
|
|
Returns:
|
|||
|
|
SecurityStatus 或 None（火绒不可用）
|
|||
|
|
"""
|
|||
|
|
huorong = self._adapters.get("huorong")
|
|||
|
|
if not huorong or not huorong.is_available:
|
|||
|
|
logger.warning("[External] 火绒不可用，无法获取安全状态")
|
|||
|
|
return None
|
|||
|
|
|
|||
|
|
try:
|
|||
|
|
return await self._query_with_cache(
|
|||
|
|
"huorong", "get_security_status", terminal_id
|
|||
|
|
)
|
|||
|
|
except Exception as e:
|
|||
|
|
logger.error(f"[External] 获取安全状态失败: {e}")
|
|||
|
|
return None
|
|||
|
|
|
|||
|
|
async def isolate_terminal(
|
|||
|
|
self, terminal_id: str, reason: str, operator: str
|
|||
|
|
) -> bool:
|
|||
|
|
"""隔离终端（断网）
|
|||
|
|
|
|||
|
|
做什么：调用火绒 _create(type=netctrl) 隔离终端
|
|||
|
|
为什么：安全事件紧急处理，阻断威胁扩散
|
|||
|
|
|
|||
|
|
仅火绒支持。调用前必须在上层做：
|
|||
|
|
1. 操作者角色校验（仅 admin 可操作）
|
|||
|
|
2. 二次确认弹窗
|
|||
|
|
3. 审计日志记录
|
|||
|
|
|
|||
|
|
Args:
|
|||
|
|
terminal_id: 火绒的 client_id
|
|||
|
|
reason: 隔离原因（记入审计日志）
|
|||
|
|
operator: 操作者账号
|
|||
|
|
|
|||
|
|
Returns:
|
|||
|
|
True=成功, False=失败
|
|||
|
|
"""
|
|||
|
|
huorong = self._adapters.get("huorong")
|
|||
|
|
if not huorong or not huorong.is_available:
|
|||
|
|
logger.error("[External] 火绒不可用，无法执行隔离")
|
|||
|
|
return False
|
|||
|
|
|
|||
|
|
logger.warning(
|
|||
|
|
f"[External] 执行终端隔离: terminal={terminal_id}, "
|
|||
|
|
f"operator={operator}, reason={reason}"
|
|||
|
|
)
|
|||
|
|
try:
|
|||
|
|
return await huorong.isolate_terminal(terminal_id, reason)
|
|||
|
|
except Exception as e:
|
|||
|
|
logger.error(f"[External] 隔离失败: {e}")
|
|||
|
|
return False
|
|||
|
|
|
|||
|
|
async def unisolate_terminal(self, terminal_id: str) -> bool:
|
|||
|
|
"""解除终端隔离（恢复网络）"""
|
|||
|
|
huorong = self._adapters.get("huorong")
|
|||
|
|
if not huorong or not huorong.is_available:
|
|||
|
|
return False
|
|||
|
|
try:
|
|||
|
|
return await huorong.unisolate_terminal(terminal_id)
|
|||
|
|
except Exception as e:
|
|||
|
|
logger.error(f"[External] 解除隔离失败: {e}")
|
|||
|
|
return False
|
|||
|
|
|
|||
|
|
# =========================================================================
|
|||
|
|
# VPN/在线状态（仅aTrust）
|
|||
|
|
# =========================================================================
|
|||
|
|
|
|||
|
|
async def get_vpn_sessions(
|
|||
|
|
self, username: Optional[str] = None
|
|||
|
|
) -> List[VpnSession]:
|
|||
|
|
"""查询VPN在线会话
|
|||
|
|
|
|||
|
|
做什么：获取当前通过aTrust在线的VPN会话列表
|
|||
|
|
为什么：坐席需要知道远程员工是否在线、VPN IP是什么
|
|||
|
|
|
|||
|
|
仅aTrust支持。
|
|||
|
|
|
|||
|
|
Args:
|
|||
|
|
username: 可选，过滤指定用户的会话
|
|||
|
|
|
|||
|
|
Returns:
|
|||
|
|
VPN会话列表（可能为空）
|
|||
|
|
"""
|
|||
|
|
atrust = self._adapters.get("atrust")
|
|||
|
|
if not atrust or not atrust.is_available:
|
|||
|
|
return []
|
|||
|
|
try:
|
|||
|
|
return await atrust.get_vpn_sessions(username)
|
|||
|
|
except Exception as e:
|
|||
|
|
logger.warning(f"[External] 查询VPN会话失败: {e}")
|
|||
|
|
return []
|
|||
|
|
|
|||
|
|
async def get_online_status(self, username: str) -> bool:
|
|||
|
|
"""查询用户是否在线
|
|||
|
|
|
|||
|
|
做什么：检查用户当前是否在线（任何方式接入）
|
|||
|
|
为什么：坐席发起协作或推送消息前需要知道用户是否可达
|
|||
|
|
|
|||
|
|
Args:
|
|||
|
|
username: 员工账号
|
|||
|
|
|
|||
|
|
Returns:
|
|||
|
|
True=在线, False=离线或未知
|
|||
|
|
"""
|
|||
|
|
# 优先联软（内网接入）
|
|||
|
|
lianruan = self._adapters.get("lianruan")
|
|||
|
|
if lianruan and lianruan.is_available:
|
|||
|
|
try:
|
|||
|
|
if await lianruan.get_online_status(username):
|
|||
|
|
return True
|
|||
|
|
except Exception:
|
|||
|
|
pass
|
|||
|
|
|
|||
|
|
# 再查 aTrust（VPN接入）
|
|||
|
|
atrust = self._adapters.get("atrust")
|
|||
|
|
if atrust and atrust.is_available:
|
|||
|
|
try:
|
|||
|
|
if await atrust.get_online_status(username):
|
|||
|
|
return True
|
|||
|
|
except Exception:
|
|||
|
|
pass
|
|||
|
|
|
|||
|
|
return False
|
|||
|
|
|
|||
|
|
# =========================================================================
|
|||
|
|
# 内部方法
|
|||
|
|
# =========================================================================
|
|||
|
|
|
|||
|
|
async def _query_with_cache(
|
|||
|
|
self, system: str, method: str, param: str
|
|||
|
|
) -> Any:
|
|||
|
|
"""带缓存的查询（内部方法）
|
|||
|
|
|
|||
|
|
做什么：先查缓存，未命中则调Adapter，结果写回缓存
|
|||
|
|
为什么：减少外部API调用频率，降低延迟
|
|||
|
|
|
|||
|
|
Args:
|
|||
|
|
system: 系统标识
|
|||
|
|
method: 方法名（用于缓存key）
|
|||
|
|
param: 查询参数（用于缓存key）
|
|||
|
|
|
|||
|
|
Returns:
|
|||
|
|
Adapter返回的数据（可能经缓存）
|
|||
|
|
"""
|
|||
|
|
# 步骤1：尝试从缓存读取
|
|||
|
|
if self._cache:
|
|||
|
|
cached = await self._cache.get(system, method, param)
|
|||
|
|
if cached:
|
|||
|
|
return cached
|
|||
|
|
|
|||
|
|
# 步骤2：缓存未命中，调用Adapter
|
|||
|
|
adapter = self._adapters.get(system)
|
|||
|
|
if not adapter:
|
|||
|
|
raise RuntimeError(f"Adapter不存在: {system}")
|
|||
|
|
|
|||
|
|
method_map = {
|
|||
|
|
"get_terminal_by_user": adapter.get_terminal_by_user,
|
|||
|
|
"get_terminal_by_computer": adapter.get_terminal_by_computer,
|
|||
|
|
"get_terminal_detail": adapter.get_terminal_detail,
|
|||
|
|
"get_security_status": adapter.get_security_status,
|
|||
|
|
"get_vpn_sessions": adapter.get_vpn_sessions,
|
|||
|
|
"get_online_status": adapter.get_online_status,
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if method not in method_map:
|
|||
|
|
raise RuntimeError(f"未知方法: {method}")
|
|||
|
|
|
|||
|
|
result = await method_map[method](param)
|
|||
|
|
|
|||
|
|
# 步骤3：写入缓存（仅非None结果）
|
|||
|
|
if result and self._cache:
|
|||
|
|
# 转成可序列化的字典
|
|||
|
|
data = result.dict() if hasattr(result, "dict") else result
|
|||
|
|
await self._cache.set(system, method, param, data)
|
|||
|
|
|
|||
|
|
return result
|