【日活统计:GET /audit/daily-usage】 按【北京时间自然日 × 操作人】聚合,单个 GROUP BY 完成(count(*) FILTER), 不用窗口函数。指标:上线/下线时间、操作次数、登录/登出次数。 ⚠️ 上线/下线时间取【当天首次/末次活动】,刻意不取登录时间: Refresh Token 有效期 7 天,用户不必每天重新登录。按登录算会出现 「登录次数 0、上线时间空,但操作次数 35」——报表自相矛盾。 时间一律按 +08:00 分日与渲染,否则早班(00:00~08:00)操作会掉到前一天。 【CSV 导出:两个端点 + 列自定义】 - /audit/logs/export 整体审计导出,筛选维度与列表页完全一致 - /audit/daily-usage/export 上下线导出,每人一行 - 列清单由后端统一维护并经 /audit/options 下发(log_export_columns / usage_export_columns),前端不硬编码表头,避免两端漂移 - ⚠️ 响应带 UTF-8 BOM:Excel 靠它识别编码,否则中文表头全乱码 - 单次上限 5 万行,超出经 X-Export-Truncated 头告知前端明确提示 (静默截断比报错更危险) - list_audit_logs 与 export_audit_logs 共用 _log_filters, 保证「看到的」与「导出的」永远是同一批数据 【前端】 - 审计页页头新增「人员统计」「导出 CSV」两个按钮,现有表格与筛选零改动 - 人员统计走抽屉(AuditUsagePanel):日期范围+快捷键、日活表格、 上下线次数彩色标签、北京时间渲染、导出前弹列勾选面板 - ExportColumnsModal 为两处导出共用,默认全选
340 lines
12 KiB
Python
340 lines
12 KiB
Python
"""审计服务 — 写入与检索
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写入方案的取舍(与 MOM/KCGL 不同,理由如下)
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--------------------------------------------------
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MOM 用 SQLAlchemy event listener + **同事务**写入:优点是全自动、业务代码零改动;
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缺点是业务事务回滚时审计记录一起被回滚掉 —— 而失败/被拒的操作恰恰是最需要
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留痕的(比如越权尝试、参数错误导致的 4xx)。
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Track 改为:响应生成后,用**独立 session** 写入审计。
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- 业务回滚不影响审计,失败操作照样留痕
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- 审计写入失败也不影响业务(全包裹 try/except,仅记日志)
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- 代价:审计与业务不是原子提交,极端情况(响应后进程立即被 kill)可能丢一条。
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对内部系统的操作审计,这个取舍划算。
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"""
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from __future__ import annotations
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import logging
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import uuid
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from datetime import datetime
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from sqlalchemy import and_, func, select
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.core.database import AsyncSessionLocal
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from app.models.audit_log import AuditLog
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logger = logging.getLogger("track.audit")
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# 绝不落库的敏感字段名(命中即替换为 ***)
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# 登录请求体含明文密码,一旦进审计表就成了长期泄露面
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_SENSITIVE_KEYS = frozenset(
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{"password", "passwd", "pwd", "token", "access_token", "refresh_token",
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"secret", "api_key", "authorization", "password_hash"}
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)
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# 模块 / 动作 的中文标签(前端下拉与列表展示用)
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MODULE_LABELS: dict[str, str] = {
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"auth": "认证登录",
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"product": "产品管理",
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"task": "任务流转",
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"order": "订单管理",
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"record": "任务记录",
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"print": "标签打印",
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"material": "物料",
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"user": "用户",
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"notification": "消息通知",
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"upload": "文件上传",
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"dashboard": "看板统计",
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"analytics": "效能分析",
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"screen": "数据大屏",
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"holiday": "节假日配置",
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"app": "App版本",
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"external": "外部系统对接",
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"audit": "审计日志",
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"other": "其它",
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}
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ACTION_LABELS: dict[str, str] = {
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"create": "新增",
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"update": "修改",
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"delete": "删除",
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"read": "查询",
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"export": "导出",
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"login": "登录",
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"logout": "登出",
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"refresh": "刷新令牌",
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"print": "打印",
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"upload": "上传",
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"finalize": "收口",
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"receive": "接收",
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"transfer": "转交",
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"reject": "驳回",
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"recall": "撤回",
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"spawn": "派发",
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"end": "结束分支",
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"complete": "完结",
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}
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def sanitize_details(details: dict | None) -> dict | None:
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"""递归剔除敏感字段,避免密码/令牌落库"""
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if not details:
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return details
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def _clean(value):
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if isinstance(value, dict):
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return {
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k: ("***" if str(k).lower() in _SENSITIVE_KEYS else _clean(v))
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for k, v in value.items()
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}
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if isinstance(value, list):
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return [_clean(v) for v in value]
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return value
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return _clean(details)
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async def record_audit(
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*,
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action: str,
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module: str,
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user_id: str | None = None,
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display_name: str | None = None,
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role: str | None = None,
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target_type: str | None = None,
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target_id: str | None = None,
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target_name: str | None = None,
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details: dict | None = None,
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ip_address: str | None = None,
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user_agent: str | None = None,
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method: str | None = None,
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url: str | None = None,
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status_code: int | None = None,
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error_message: str | None = None,
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request_id: str | None = None,
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) -> None:
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"""写入一条审计记录。**绝不抛异常**:审计失败不能影响业务。"""
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try:
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async with AsyncSessionLocal() as session:
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session.add(
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AuditLog(
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id=uuid.uuid4(),
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user_id=user_id,
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display_name=display_name,
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role=role,
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action=action,
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module=module,
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target_type=target_type,
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target_id=str(target_id) if target_id is not None else None,
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target_name=target_name,
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details=sanitize_details(details),
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ip_address=ip_address,
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user_agent=user_agent[:500] if user_agent else None,
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method=method,
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url=url[:500] if url else None,
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status_code=status_code,
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error_message=error_message,
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request_id=request_id,
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)
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)
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await session.commit()
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except Exception:
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# 用 exception 级别但吞掉异常:保证调用方业务流程不受影响
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logger.exception(
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"审计写入失败(已忽略,不影响业务)",
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extra={"extra_fields": {"action": action, "module": module, "url": url}},
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)
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async def list_audit_logs(
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db: AsyncSession,
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*,
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user_id: str | None = None,
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module: str | None = None,
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action: str | None = None,
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target_id: str | None = None,
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request_id: str | None = None,
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status_code: int | None = None,
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start: datetime | None = None,
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end: datetime | None = None,
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skip: int = 0,
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limit: int = 50,
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) -> tuple[list[AuditLog], int]:
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"""审计日志检索(按时间倒序)。返回 (当前页, 真实总数)。
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真实总数走独立 COUNT —— 前端分页器依赖它,不能用 len(当前页)。
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"""
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filters = _log_filters(
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user_id=user_id, module=module, action=action, target_id=target_id,
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request_id=request_id, status_code=status_code, start=start, end=end,
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)
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total = await db.scalar(
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select(func.count()).select_from(AuditLog).where(*filters)
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) or 0
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rows = (
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await db.execute(
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select(AuditLog)
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.where(*filters)
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.order_by(AuditLog.created_at.desc())
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.offset(skip)
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.limit(limit)
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)
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).scalars().all()
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return list(rows), total
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# ============================================================
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# 导出
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# ============================================================
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# 单次导出的行数上限。审计表只增不减,全量导出迟早会撑爆内存与浏览器,
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# 故设硬上限;超出时向上层返回 truncated=True,由前端明确提示「已截断」——
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# 静默截断会让使用者以为导全了,比报错更危险。
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EXPORT_MAX_ROWS = 50000
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def _log_filters(
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*,
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user_id: str | None = None,
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module: str | None = None,
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action: str | None = None,
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target_id: str | None = None,
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request_id: str | None = None,
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status_code: int | None = None,
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start: datetime | None = None,
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end: datetime | None = None,
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) -> list:
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"""审计日志的筛选条件 —— list_audit_logs 与 export_audit_logs 共用。
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抽出来的唯一目的:保证「列表看到的」和「导出出去的」永远是同一批数据。
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两处各写一份迟早会漂移,而导出与列表不一致是最让人不信任的那种 bug。
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"""
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filters = []
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if user_id:
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filters.append(AuditLog.user_id.ilike(f"%{user_id}%"))
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if module:
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filters.append(AuditLog.module == module)
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if action:
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filters.append(AuditLog.action == action)
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if target_id:
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filters.append(AuditLog.target_id == target_id)
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if request_id:
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filters.append(AuditLog.request_id == request_id)
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if status_code is not None:
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filters.append(AuditLog.status_code == status_code)
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if start:
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filters.append(AuditLog.created_at >= start)
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if end:
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filters.append(AuditLog.created_at <= end)
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return filters
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async def export_audit_logs(
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db: AsyncSession, *, limit: int = EXPORT_MAX_ROWS, **kwargs,
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) -> tuple[list[AuditLog], bool]:
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"""导出用:按筛选条件取全部记录(不分页)。返回 (rows, truncated)。
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多取一行来判断是否被截断 —— 比再跑一次 COUNT 便宜。
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"""
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rows = (
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await db.execute(
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select(AuditLog)
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.where(*_log_filters(**kwargs))
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.order_by(AuditLog.created_at.desc())
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.limit(limit + 1)
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)
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).scalars().all()
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truncated = len(rows) > limit
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return list(rows[:limit]), truncated
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# ============================================================
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# 日活 / 使用统计
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# ============================================================
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# 成功 = 2xx/3xx。登录失败(401)也要留痕,但不应计入"上线次数"。
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_OK_STATUS_UPPER = 400
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async def get_daily_usage(
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db: AsyncSession, *, start: datetime, end: datetime,
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) -> list[dict]:
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"""按【北京时间自然日 × 操作人】聚合用量 —— 日活报表的数据源。
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start/end 为半开区间 [start, end),调用方按北京时间日界传入。
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全部指标由**一个 GROUP BY 查询**算出,不用窗口函数:
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· 登录/登出次数 = 成功登录 / 成功登出数(最终凭证是 login_count,不是"上线次数")
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· 操作频次 = 当天该用户的全部审计记录数(代表系统使用深度)
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· 上线/下线时间 = 当天**首次 / 末次活动**时间(任意审计记录)
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⚠️ 上线/下线时间【不能】取登录/登出时间。
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Access/Refresh Token 有效期内(refresh 7 天)用户无需重新登录,
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于是"周一登录、周二到周日继续用"会导致周二~周日:
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登录次数=0、登录时间=空,但操作次数却是几十 —— 报表自相矛盾。
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改用活动口径后,工人当天的第一次操作就是真实上线时间。
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(审计中间件是全站的,移动端的接收/转交/完工同样入账,故自动覆盖移动端,
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无需前端上报心跳。)
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为什么用 `count(*) FILTER (WHERE ...)`:分组内一次扫描同时算出多个条件计数,
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比多次子查询或 UNION 简单得多,且语义一眼可读。Postgres 原生支持。
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⚠️ 按【北京时间】分日:created_at 是 timestamptz(实存 UTC),
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直接按 UTC 分日会让 00:00~08:00 的早班操作掉到前一天。
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"""
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day_col = func.date(func.timezone("Asia/Shanghai", AuditLog.created_at))
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login_ok = and_(
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AuditLog.action == "login", AuditLog.status_code < _OK_STATUS_UPPER,
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)
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logout_ok = and_(
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AuditLog.action == "logout", AuditLog.status_code < _OK_STATUS_UPPER,
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)
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stmt = (
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select(
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day_col.label("day"),
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AuditLog.user_id.label("user_id"),
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# 同一用户的 display_name / role 是一致的,取 max 只是为了
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# 在 GROUP BY 下拿到一个非空代表值(避免再套一层 DISTINCT ON)
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func.max(AuditLog.display_name).label("display_name"),
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func.max(AuditLog.role).label("role"),
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func.count().filter(login_ok).label("login_count"),
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func.count().filter(logout_ok).label("logout_count"),
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func.count().label("op_count"),
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# 上线/下线时间取「任意记录」的首末,而不是登录/登出的首末(原因见 docstring)
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func.min(AuditLog.created_at).label("first_active_at"),
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func.max(AuditLog.created_at).label("last_active_at"),
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)
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.where(
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AuditLog.created_at >= start,
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AuditLog.created_at < end,
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# 只统计"人":未认证请求(如登录前的探测、refresh)没有操作人,
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# 混进来会让"日活人数"虚高。若要排查匿名异常流量,走日志列表页按
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# 结果/来源 IP 过滤更合适。
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AuditLog.user_id.isnot(None),
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)
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.group_by(day_col, AuditLog.user_id)
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.order_by(day_col.desc(), func.count().desc())
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)
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rows = (await db.execute(stmt)).all()
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return [
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{
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"day": r.day.strftime("%Y-%m-%d") if hasattr(r.day, "strftime") else str(r.day),
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"user_id": r.user_id,
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"display_name": r.display_name,
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"role": r.role,
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"login_count": r.login_count or 0,
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"logout_count": r.logout_count or 0,
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"op_count": r.op_count or 0,
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"first_active_at": r.first_active_at,
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"last_active_at": r.last_active_at,
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}
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for r in rows
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]
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