Archived
为什么:单文件 1100~1900 行的巨石模块让「改一处要通读全文」;同时注释里残留 大量已删台账的编号,以及「Flask/FastAPI 双栈迁移期」这类已失实的架构描述, 会误导后来者按不复存在的架构去改代码。 拆分(对外导入路径不变,行为零变更): - music_downloader.py -> music_downloader/(models/downloader/cover/_http/_log/_concurrency) - auth_system.py -> auth_system/(db/security/users/credits/ledger/mail/cards/backup...) - music_api.py -> music_api/(api/client/crypto/qr/cookies/compat/constants/errors) - services/runtime.py -> services/(api_service/_shared/_taskcore/downloads/batch/podcast/ streaming/tasks);services/runtime.py 保留为兼容门面 兼容性做法:各包用 __init__.py 以 __all__ 原样再导出全部符号,既有调用点 (auth_system.xxx / services.xxx / from music_api import Y)零改动;路径常量改为经包属性 动态读取(auth_system.DB_PATH),否则测试的 monkeypatch 会静默失效并写到生产库。 修复 9 处代码损伤(上一轮注释清理把 `()` 当「空括号残留」删掉所致;用「与拆分前逐字 等价」校验逐一定位,静态检查只会报出其中 4 处): - core/config.py ).strip() or '*' - core/state.py threading.Lock() x2 - qr_login.py datetime.now() / .strip() - music_downloader/downloader.py .lower() - services/podcast.py set() / time.time() x2 清理与删除: - 删除 部署文档.md / 功能介绍.md / README_私有包警告.txt - 清理指向已删台账与文档的过时编号注释;把「迁移期 / 两栈 / 双框架 / 已迁移」等 失实描述改写为现状描述(保留 `<-> Flask /path` 映射表等仍有价值的契约来源说明) - _mkpkg.py:公开包剔除清单去掉已不存在的文档名;私有包警告改为自包含 - pyproject.toml:补 pythonpath = ["."],使裸跑 pytest 不再 import core 失败 验证:ruff 全通过;pyright 0 errors / 0 warnings(102 文件);pytest 144 passed; 真实 uvicorn 冒烟 6 条路由符合预期且生产 data/ 指纹未变;忽略注释的逐字等价性校验通过。
97 lines
3.3 KiB
Python
97 lines
3.3 KiB
Python
# -*- coding: utf-8 -*-
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"""登录 IP 归属地探测与异地自动封禁。
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(自 auth_system.py 拆出,行为与原实现一致。)
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"""
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import json
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import sqlite3
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import time
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from .db import (
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_x,
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)
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from .logs import (
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add_log,
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)
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from .users import (
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ban_user,
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)
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_PROVINCE_CACHE: dict[str, str] = {}
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def _is_private_ip(ip: str) -> bool:
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"""内网/回环地址判断(172.16-31.* 才是私网,不能把整个 172.* 误判)"""
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try:
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import ipaddress
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addr = ipaddress.ip_address(ip)
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return addr.is_private or addr.is_loopback or addr.is_link_local
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except ValueError:
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return False
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def query_ip_province(ip: str) -> str:
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"""查询 IP 归属省份(内网/失败返回空串),带进程内缓存
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改用官方路径 /json/{query} 与 zh-CN 语言参数"""
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ip = (ip or '').split(',')[0].strip()
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if not ip or ip in ('-', '127.0.0.1', '0.0.0.0') or _is_private_ip(ip):
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return ''
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if ip in _PROVINCE_CACHE:
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return _PROVINCE_CACHE[ip]
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province = ''
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try:
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import urllib.parse as _ul
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from core import sync_http as _rq
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r = _rq.get('http://ip-api.com/json/' + _ul.quote(ip),
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params={'lang': 'zh-CN', 'fields': 'status,regionName'},
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timeout=5)
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d = r.json()
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if d.get('status') == 'success':
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province = str(d.get('regionName') or '')
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except Exception:
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province = ''
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# 简单容量上限,防止公网长期运行下无界增长
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if len(_PROVINCE_CACHE) > 5000:
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_PROVINCE_CACHE.clear()
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# 查询失败(超时/限流/垃圾 JSON)的空省份不写缓存——旧口径一次
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# ip-api 抖动窗口内登录的 IP 被永久标记"无省份",省份防倒卖静默失效
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if province:
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_PROVINCE_CACHE[ip] = province
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return province
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PROVINCE_WINDOW = 24 * 3600 # 省份变化检测窗口:24 小时
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PROVINCE_BAN_LIMIT = 3 # 窗口内出现 >=3 个不同省份即封禁
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def record_login_location(user: sqlite3.Row, ip: str) -> tuple:
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"""记录本次登录省份并检测异常:24h 内出现 >=3 个不同省份自动封禁。
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返回 (是否被封禁, 说明)"""
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if user['role'] == 'admin':
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return False, ''
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province = query_ip_province(ip)
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if not province:
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return False, ''
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now = int(time.time())
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try:
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history = json.loads(user['recent_provinces'] if 'recent_provinces' in user.keys() and user['recent_provinces'] else '[]')
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except Exception:
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history = []
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history = [h for h in history if isinstance(h, dict) and now - int(h.get('t', 0)) <= PROVINCE_WINDOW]
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history.append({'p': province, 't': now})
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provinces = []
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for h in history:
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if h.get('p') and h['p'] not in provinces:
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provinces.append(h['p'])
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_x('UPDATE users SET recent_provinces = ? WHERE id = ?',
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(json.dumps(history, ensure_ascii=False), user['id']))
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if len(provinces) >= PROVINCE_BAN_LIMIT:
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reason = f'24小时内检测到 {len(provinces)} 个不同省份登录({"/".join(provinces[-3:])}),疑似账号倒卖,已自动封禁'
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ban_user(user['id'], reason)
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add_log('fail', user['username'], ip, '自动封禁', reason)
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return True, reason
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return False, province
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