Archived
拆掉两类垫片的最后一处:auth_system 原为同步 sqlite3 栈,web 层与 services 的
worker 只能靠 asyncio.to_thread 逐个桥接才不阻塞事件循环——每次 DB 访问都白付一次
线程池调度,且「同步调异步」的边界散落在 100+ 个调用点。B1 已把 worker 变成协程,
本批把访问层本身也迁到原生异步,两条线在此合拢。
改动(按子系统):
- auth_system:db.py 照 core/db.py 现有范式重建为原生异步访问层(aiosqlite + WAL)
——读路径 _q 每次独立连接、无锁、可并发;写路径 _x / write_transaction 用
asyncio.Lock 串行化,写者不阻塞读者。users / cards / credits / ledger / logs /
settings / mail / geo / backup 九模块随之全部 async/await;security.py 是纯计算
(pbkdf2/normalize)不动。__init__ 去掉 _DB_LOCK 与 get_conn 导出。
- web:app / deps / billing / tasks_registry 与 routers/{admin_site,auth,music,
register,user} 直接 await,拆掉包裹的 to_thread。deps.secret_key 改 async,
连带 _parse_cookie 也 async(会话解析要读密钥)。
- services:_taskcore / tasks / downloads / podcast 的账本调用与查询直接 await。
4 处 start_task 调用点(download.py)确认已 await。
设计取舍(为什么这么做,而不是直接包一层):
- 锁按**事件循环**隔离(_LOOP_LOCKS 以 id(loop) 为键):asyncio.Lock 绑定创建它的
loop,应用主 loop 与测试各自的 loop 并存,跨 loop 复用会抛 "bound to a different
event loop"。
- WAL 切换用**独立锁** _wal_lock 而非 _write_lock:execute() 已持写锁,再在锁内
connect→_configure 会自锁死(asyncio.Lock 非重入)。切换 + 标记在专用锁内串行并
二次复查,否则并发首连会同时执行 PRAGMA journal_mode=WAL 争排他锁报
database is locked(core/db.py 同款教训,实测复现)。
- force_wal 保留:journal_mode 持久化在库文件头,库文件被删重建时新文件不继承,
必须重设。exists() 判定须在 aiosqlite.connect **之前**(connect 会创建空文件)。
- connect() 用 DB_PATH.parent 兜底建目录,优于 DATA_DIR:生产两者相同,但测试
monkeypatch 只换 DB_PATH 时兜底仍能命中正确目录。
留在 to_thread 上的仅剩**正当的阻塞卸载**,不是同步门面:PBKDF2 的 10 万次迭代
(登录链路每次都要跑)、smtplib 发信、备份文件的 copy2 / os.replace、secret.key
的文件 IO。原有 aria2 / downloader / zip 侧的 to_thread 未动。
不变量逐条保持(迁移只改执行模型,不改语义):
- ledger_settle 幂等:账本非 open 直接 return 0,重启后重放不重复退款;
- 终态先到先得:_mark_task_terminal 对已 done/error/canceled 的任务直接 return,
堵住 canceled→error 的非法迁移边;
- settle 必须在任务锁**外**调用(ledger_settle 要抢 SQLite 写锁,busy 最长 15s,
持任务锁会让全站进度/提交/取消随库停摆);
- reserve_and_open 的预扣与开账同事务,消除原两步之间的崩溃丢账窗口。
路径真源红线:DATA_DIR / DB_PATH / BACKUP_DIR / SECRET_KEY_PATH 仍是 auth_system.db
的**模块全局**(用与 core.db 相同的表达式,但**不是**它的别名)。测试只 patch
auth_system.db.*,若改成 core.db 的别名会静默把测试写到生产库。已核 data/site.db
读写前后 sha256 完全一致。
顺带清掉 get_conn:迁移后它只剩「转调 connect()」一层空壳、全仓零消费者(测试
直接开裸连接、备份用 db.connect()),保留等于留一条「拿裸连接自己写」的口子。
测试:19 个文件同步迁移——10 个文件的 web.deps.secret_key 替身改 async;
test_db_conn.py 的多线程首连用例按异步语义拆成 2 条(单 loop gather(16) 覆盖批量
并发首连、WAL 就绪后 8 线程各自 loop 建连覆盖跨 loop);test_billing_scope.py 去掉
多余的 @pytest.mark.anyio;被 await 且**正常返回**的 monkeypatch 替身一律改 async
(仅 raise 的同步替身仍可用)。
门禁:ruff 全过 / pyright 0-0-0(standard 模式含 tests 与顶层模块)/ pytest
384 项全绿(0 失败 0 error 0 skipped;383→384 因 test_db_conn 拆用例)。
data/site.db 读写前后 sha256 一致(a19f5db…6487),无 -wal/-shm 边车残留。
下一步 B3:删 core/sync_http.py、core/async_bridge.py、core/http_errors.py 及
tests/test_async_bridge.py——三者在生产侧已零消费者(http_errors 仅 sync_http
自用,requests 已非声明依赖)。
334 lines
14 KiB
Python
334 lines
14 KiB
Python
# -*- coding: utf-8 -*-
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"""认证操作端点。
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端点:
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- POST /api/v1/auth/logout ↔ Flask /auth/logout(顶号:递增 login_seq + 删 Cookie)
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- POST /api/v1/auth/heartbeat ↔ Flask /auth/heartbeat
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- POST /api/v1/auth/ann_seen ↔ Flask /auth/ann_seen
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- POST /api/v1/auth/login ↔ Flask /auth/login(密码校验 + 失败锁定 + 管理员 2FA 转票据)
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设计:
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- 登录失败锁定与管理员 2FA 票据表**复用 web.auth_state 的模块级状态**,全进程共享同一份
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计数/票据,避免「换个框架打就绕过锁定」。
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- 密码校验(PBKDF2,10 万次迭代,CPU 密集)已在 auth_system.verify_login 内部经
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asyncio.to_thread 卸载;其余 auth_system 调用已迁移为原生异步(aiosqlite)直接 await。
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- 会话 Cookie 由 core.session 签发(沿用同一格式与密钥,存量会话继续有效),删 Cookie 亦同口径。
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"""
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import os
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import time
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from typing import Annotated
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from fastapi import APIRouter, Depends, Request
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from fastapi.responses import JSONResponse
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import auth_system as auth
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import web.deps as deps
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from core import db, repo
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from core import session as cs
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from web import ratelimit
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from web.deps import SiteUser, current_user
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from web.request_utils import (
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request_data as _request_data,
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)
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from web.response import error, success
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from web.serializers import format_credits as _format_credits
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from web.serializers import user_public as _user_public
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router = APIRouter()
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SESSION_COOKIE = cs.COOKIE_NAME
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_SESSION_MAX_AGE = cs.SESSION_MAX_AGE
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def _cookie_kwargs() -> dict:
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secure = os.environ.get('ENABLE_SECURE_COOKIE', '').strip().lower() in ('1', 'true', 'yes')
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return {'max_age': _SESSION_MAX_AGE, 'httponly': True, 'samesite': 'lax',
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'path': '/', 'secure': secure}
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async def _login_response(payload: dict, message: str, uid: int, seq: int) -> JSONResponse:
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"""构造带会话 Cookie 的成功响应(沿用同一 Cookie 格式)。"""
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resp = JSONResponse(content={'status': 200, 'success': True, 'message': message, 'data': payload})
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cookie = cs.dumps(await deps.secret_key(), {
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'site_uid': uid, 'site_uid_seq': seq, 'site_uid_ts': int(time.time()),
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})
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resp.set_cookie(SESSION_COOKIE, cookie, **_cookie_kwargs())
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return resp
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@router.post('/auth/logout')
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async def logout(user: Annotated[SiteUser | None, Depends(current_user)]):
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"""退出登录:递增 login_seq 使本账号全部已签发会话失效,并删除本机 Cookie。"""
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if user is not None:
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try:
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await db.execute(
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'UPDATE users SET login_seq = COALESCE(login_seq, 0) + 1 WHERE id = ?',
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(user.id,))
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except Exception:
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pass
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resp = JSONResponse(content={'status': 200, 'success': True, 'message': '已退出登录'})
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resp.delete_cookie(SESSION_COOKIE)
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return resp
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@router.post('/auth/heartbeat')
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async def heartbeat(user: Annotated[SiteUser | None, Depends(current_user)]):
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"""会话保活:返回最新次数;超限/失效给 401(expired 语义不变)。"""
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if user is None:
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return error('登录已失效', 401, error_code='unauthorized')
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row = await repo.get_user_by_id(user.id)
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if row is None:
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return error('登录已失效', 401, error_code='unauthorized')
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credits = int(row.get('duration_seconds') or 0)
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if row.get('role') != 'admin' and credits != -1 and credits <= 0:
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return error('剩余次数已用完', 401, error_code='expired')
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return success({'duration_seconds': row.get('duration_seconds'),
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'duration_text': _format_credits(credits)})
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@router.post('/auth/ann_seen')
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async def ann_seen(user: Annotated[SiteUser | None, Depends(current_user)]):
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"""标记公告已读(记录当前公告版本)。"""
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if user is not None:
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ann = await repo.get_announcement()
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await db.execute('UPDATE users SET ann_seen = ? WHERE id = ?',
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(ann.get('updated_at', ''), user.id))
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return success()
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async def _resolve_login_identity(username: str) -> tuple:
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"""身份解析:含 @ 按归一化邮箱解析真实账号。
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返回 (邮箱命中的用户或 None, 锁定计数键)。邮箱登录的锁定键用
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真实用户名(命中时)或归一化邮箱(未命中时),防大小写变体绕过。
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"""
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if '@' not in username:
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return None, username
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iuser = await auth.get_user_by_email(username)
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lock_name = iuser['username'] if iuser else (auth._normalize_email(username) or username)
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return iuser, lock_name
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async def _allow_login_attempt(lock_name: str, ip: str) -> bool:
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"""失败锁定闸:允许尝试返回 True;锁定时落一条一次性审计日志并返回 False。"""
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from web.auth_state import (
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_login_fail_check,
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_login_fail_locked_log_once,
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)
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if _login_fail_check(lock_name):
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return True
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if _login_fail_locked_log_once(lock_name):
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await auth.add_log('fail', lock_name, ip,
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'登录', '失败次数过多,临时锁定')
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return False
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async def _check_account_status(user, lock_name: str, ip: str):
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"""账号状态闸:封禁(原因落日志)/禁用;通过返回 None。"""
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keys = user.keys()
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status = user['status'] if 'status' in keys else 1
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if status == 2:
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reason = user['ban_reason'] if 'ban_reason' in keys else ''
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await auth.add_log('fail', lock_name, ip,
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'登录', f'封禁账号尝试登录: {reason}')
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return error('账号已被封禁' + (f':{reason}' if reason else '') + ',请联系管理员')
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if status == 0:
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return error('账号已被禁用,请联系管理员')
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return None
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async def _admin_two_factor_response(user, lock_name: str, ip: str) -> JSONResponse:
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"""管理员登录一律转两步验证通道(密码正确才签发票据;未绑定邮箱 fail-closed)。"""
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from web.auth_state import (
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_admin2fa_issue,
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_admin2fa_mask,
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)
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admin_email = user['email'] if 'email' in user.keys() else ''
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if not admin_email:
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await auth.add_log('fail', lock_name, ip,
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'管理员登录', '未绑定邮箱,两步验证不可用')
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return error('管理员账号未绑定邮箱,请联系管理员先完成绑定')
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ticket = _admin2fa_issue(user)
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await auth.add_log('success', lock_name, ip,
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'管理员登录', '密码验证通过,待邮箱验证')
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return success({'ticket': ticket, 'email_masked': _admin2fa_mask(admin_email),
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'username': user['username'], 'admin_2fa': True},
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'密码验证通过,请完成邮箱验证')
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async def _user_session_response(user, ip: str) -> JSONResponse:
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"""普通用户建会话:login_seq 原子递增顶号 → 异地多省封禁闸 → 签发 Cookie。"""
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uid = int(user['id'])
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now = int(time.time())
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await db.execute(
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'UPDATE users SET last_active = ?, last_login = ?, '
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'login_seq = COALESCE(login_seq, 0) + 1 WHERE id = ?', (now, now, uid))
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seq_row = await repo.get_user_by_id(uid)
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seq = int((seq_row or {}).get('login_seq') or 1)
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banned, _info = await auth.record_login_location(user, ip)
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if banned:
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await db.execute(
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'UPDATE users SET login_seq = COALESCE(login_seq, 0) + 1 WHERE id = ?', (uid,))
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return error('检测到账号在多个省份异常登录,已自动封禁,请联系管理员')
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fresh = await repo.get_user_by_id(uid) or {}
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return await _login_response({
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'user': _user_public(fresh),
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'duration_text': _format_credits(int(fresh.get('duration_seconds') or 0)),
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'redirect': 'admin' if fresh.get('role') == 'admin' else 'user',
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}, '登录成功', uid, seq)
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@router.post('/auth/login')
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async def login(request: Request):
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"""登录:密码校验(含邮箱登录)、失败锁定、管理员两步验证转票据。
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分支顺序:超长密码直拒 → 身份解析 → 失败锁定 → 密码校验 →
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状态闸(封禁/禁用)→ 管理员转 2FA → 普通用户建会话(含异地封禁)。
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"""
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data = await _request_data(request)
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username = str(data.get('username') or '').strip()
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password = str(data.get('password') or '')
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ip = ratelimit.client_ip(request)
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if len(password) > 128:
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# 超长密码不做 PBKDF2(CPU 放大器),直接按密码错误拒绝
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return error('用户名或密码错误')
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try:
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iuser, lock_name = await _resolve_login_identity(username)
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if not await _allow_login_attempt(lock_name, ip):
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return error('尝试过于频繁,该账号已临时锁定,请 10 分钟后再试')
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verify_name = iuser['username'] if iuser is not None else username
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user = await auth.verify_login(verify_name, password)
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if not user:
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from web.auth_state import _login_fail_record
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_login_fail_record(lock_name)
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return error('用户名或密码错误')
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status_err = await _check_account_status(user, lock_name, ip)
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if status_err is not None:
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return status_err
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from web.auth_state import _login_fail_clear
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_login_fail_clear(lock_name)
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if user['role'] == 'admin':
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return await _admin_two_factor_response(user, lock_name, ip)
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return await _user_session_response(user, ip)
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except Exception:
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return error('登录失败,请稍后重试', 500)
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# ============ 管理员两步验证 Step2 / Step3 ============
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@router.post('/auth/admin_login/email')
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async def admin_login_email(request: Request):
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"""管理员 2FA Step2:比对绑定邮箱 → 发送 admin2fa 验证码。"""
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import hmac as _hmac
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from web.auth_state import (
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_ADMIN2FA_LAST_SEND,
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_ADMIN2FA_SEND_GAP,
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_ADMIN_2FA,
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_ADMIN_2FA_MAX_ATTEMPTS,
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_admin2fa_mask,
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_admin2fa_take,
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)
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data = await _request_data(request)
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ip = ratelimit.client_ip(request)
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ticket, v = _admin2fa_take(str(data.get('ticket') or ''))
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if not v:
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return error('登录会话已过期,请重新开始登录', 401, error_code='admin_2fa_expired')
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email_input = auth._normalize_email(str(data.get('email') or ''))
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# 第二因子比对走常时比较
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if (not email_input or not v.get('email')
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or not _hmac.compare_digest(email_input, v['email'])):
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v['attempts'] += 1
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await auth.add_log('fail', v['username'], ip, '管理员登录', '绑定邮箱不匹配')
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if v['attempts'] >= _ADMIN_2FA_MAX_ATTEMPTS:
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_ADMIN_2FA.pop(ticket, None)
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return error('错误次数过多,请重新开始登录')
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return error(f'绑定邮箱不正确,还可尝试 {_ADMIN_2FA_MAX_ATTEMPTS - v["attempts"]} 次')
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last_send = _ADMIN2FA_LAST_SEND.get(v['username'], 0)
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if time.time() - last_send < _ADMIN2FA_SEND_GAP:
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return error('验证码发送过于频繁,请 1 分钟后再试')
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try:
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await auth.send_verify_code(v['email'], 'admin2fa')
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_ADMIN2FA_LAST_SEND[v['username']] = time.time()
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await auth.add_log('success', v['username'], ip, '管理员登录',
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f'绑定邮箱验证通过,验证码已发送({_admin2fa_mask(v["email"])})')
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return success(message='验证码已发送至管理员邮箱,请查收')
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except (ValueError, RuntimeError) as e:
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return error(str(e))
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except Exception:
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return error('验证码发送失败,请稍后重试', 500)
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@router.post('/auth/admin_login/verify')
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async def admin_login_verify(request: Request):
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"""管理员 2FA Step3:验证码原子消费 → 建立管理员会话。"""
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from web.auth_state import (
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_ADMIN_2FA,
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_ADMIN_2FA_MAX_ATTEMPTS,
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_admin2fa_take,
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)
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data = await _request_data(request)
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ip = ratelimit.client_ip(request)
|
||
ticket, v = _admin2fa_take(str(data.get('ticket') or ''))
|
||
if not v:
|
||
return error('登录会话已过期,请重新开始登录', 401, error_code='admin_2fa_expired')
|
||
|
||
code = str(data.get('code') or '').strip()
|
||
if not await auth.check_verify_code(v['email'], code, 'admin2fa'):
|
||
v['attempts'] += 1
|
||
if v['attempts'] >= _ADMIN_2FA_MAX_ATTEMPTS:
|
||
_ADMIN_2FA.pop(ticket, None)
|
||
return error('错误次数过多,请重新开始登录')
|
||
await auth.add_log('fail', v['username'], ip, '管理员登录', '验证码错误')
|
||
return error('验证码错误或已过期')
|
||
|
||
_ADMIN_2FA.pop(ticket, None) # 一次性
|
||
user = await auth.get_user_by_id(v['user_id'])
|
||
if not user or user['role'] != 'admin':
|
||
return error('登录会话已过期,请重新开始登录', 401, error_code='admin_2fa_expired')
|
||
keys = user.keys()
|
||
status = user['status'] if 'status' in keys else 1
|
||
if status == 2:
|
||
await auth.add_log('fail', v['username'], ip, '管理员登录', '封禁账号尝试登录')
|
||
return error('账号已被封禁,请联系管理员')
|
||
if status == 0:
|
||
return error('账号已被禁用,请联系管理员')
|
||
|
||
uid = int(user['id'])
|
||
now = int(time.time())
|
||
await db.execute('UPDATE users SET last_active=?, last_login=?, '
|
||
'login_seq=COALESCE(login_seq,0)+1 WHERE id=?', (now, now, uid))
|
||
seq_row = await repo.get_user_by_id(uid)
|
||
seq = int((seq_row or {}).get('login_seq') or 1)
|
||
|
||
banned, _info = await auth.record_login_location(user, ip)
|
||
if banned:
|
||
await db.execute('UPDATE users SET login_seq = COALESCE(login_seq, 0) + 1 WHERE id = ?', (uid,))
|
||
return error('检测到账号在多个省份异常登录,已自动封禁,请联系管理员')
|
||
|
||
fresh = await repo.get_user_by_id(uid) or {}
|
||
await auth.add_log('success', v['username'], ip, '管理员登录', '两步验证通过')
|
||
return await _login_response({
|
||
'user': _user_public(fresh),
|
||
'duration_text': _format_credits(int(fresh.get('duration_seconds') or 0)),
|
||
'redirect': 'admin',
|
||
}, '登录成功', uid, seq)
|