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NeteaseUrl/auth_system/__init__.py
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snowy-yang 22b263f547 refactor: SMTP 发信改 aiosmtplib,最后一个阻塞网络调用从 to_thread 里取出来
为什么:smtplib 是同步栈,原先靠 asyncio.to_thread 卸载——线程池里躺着的仍是一次
完整的 TCP + TLS 握手加多轮 SMTP 交互,属于「同步网络 IO 藏在 to_thread 里」:既
占着线程,也不产生并发收益。这是本系列最后一条此类遗留(aria2p 那条已在 C2 清零)。

改动:
- auth_system/mail.py:_smtp_connect / _smtp_send 两个同步函数合成一个原生异步
  _smtp_send,底层换 aiosmtplib.SMTP。TLS 口径与原实现一一对应:465 用 use_tls
  (隐式 TLS),其余端口用 start_tls(显式 STARTTLS,先握手再 LOGIN);两条路都传
  显式构造的 ssl.create_default_context(),不依赖运行时默认校验口径。finally 里
  quit 失败只吞连接关闭错误,sendmail 的真实异常原样上抛——send_verify_code 依赖
  它决定「不写库、不烧 24h 额度」。
- auth_system/mail.py:send_email 改直接 await;移除 import asyncio / import smtplib。
- auth_system/__init__.py:撤掉 _smtp_connect 的再导出——它是同步时代的辅助函数,
  全仓无消费方,新实现里也不存在对应物。
- web/routers/register.py:更新过时的模块说明(原文仍写「smtplib 阻塞发送已卸载」)。
- pyproject.toml / uv.lock:新增 aiosmtplib>=5.1.3,<6.0。
- tests/test_mail_smtp.py(新增 5 条):SMTP 路径此前零覆盖,而「端口 → TLS 方式」
  的映射属「授权码会不会明文过网」级别的差异,一旦被改反不会有任何地方报警。用假
  SMTP 替身记录构造参数与调用序、全程不触网:587 必须 start_tls 且 LOGIN 在 connect
  之后、465 必须 use_tls 且不得再叠 STARTTLS、端口缺省回落 587、quit 失败不掩盖结果、
  sendmail 失败原样上抛且仍关连接。

验证:
- uv run ruff check .  → All checks passed!
- uv run pyright       → 0 errors, 0 warnings, 0 informations
  (aiosmtplib 自带 py.typed,故对它的调用是有效类型校验;另用 inspect 逐一核对了
   5.1.3 的 SMTP / connect / login / sendmail / quit 参数名)
- uv run pytest        → 397 项,0 失败 / 0 error / 0 skipped(C3 后 392,新增 5)
- data/site.db sha256 前后一致(a19f5dbf…6487),无 -wal/-shm 残留
2026-09-29 15:28:13 +08:00

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# -*- coding: utf-8 -*-
"""站点认证与管理系统
提供网站级用户体系:
- 用户注册(邮箱验证码)/ 登录 / 登出 / 注册即赠下载次数(试用领取已并入注册)
- 按次计费(一首歌 = 1 次)、卡密(次数卡)充值
- 管理员后台:用户管理 / SMTP 配置 / 卡密生成 / 公告 / 日志 / 数据库备份
- 接口装饰器:login_required(强制登录 + 按次扣费)/ admin_required(仅管理员)
数据存储:SQLite(data/site.db),会话:Flask 签名 Cookie(secret_key 持久化)
"""
# 兼容门面:实现已按职责拆分到同包各子模块,此处原样再导出。
# 用 `__all__` 声明再导出(ruff F401 与 pyright 均据此认定「有意再导出」),
# 使既有调用点(auth_system.xxx / from auth_system import Y)零改动。
#
# ⚠️ 路径常量(DATA_DIR / DB_PATH / BACKUP_DIR / SECRET_KEY_PATH)在此只是
# **import 时的值快照**:它们是再导出的绑定,运行时改 auth_system.DB_PATH
# 不会影响 db / backup 的实际读写路径(那只会静默失效,且看起来"改成功了")。
# 一律不要经由包属性做重定向:
# - 测试:patch `auth_system.db.<NAME>`(唯一来源,db 与 backup 都随动)
# - 部署:设置环境变量 SITE_DATA_DIR(须在进程启动前)
# 此处保留再导出仅为不破坏既有 `auth_system.DB_PATH` 读取方(如黄金测试)。
from .backup import (
_BACKUP_ERR_TS,
_BACKUP_NAME_LOCK,
_auto_backup_loop,
_backup_is_valid_db,
_backup_thread_started,
_before_restore_hook,
backup_path,
create_backup,
delete_backup,
list_backups,
prune_backups,
register_before_restore_hook,
restore_backup,
start_auto_backup,
)
from .cards import (
delete_card,
generate_cards,
list_cards,
redeem_card,
set_card_disabled,
)
from .credits import (
add_credits,
charge_credits,
format_credits,
refund_credits,
reserve_credits,
)
from .db import (
BACKUP_DIR,
DATA_DIR,
DB_PATH,
DEFAULT_ADMIN_USER,
DEFAULT_REGISTER_CREDITS,
SECRET_KEY_PATH,
SESSION_KEY,
_q,
_x,
get_secret_key,
init_db,
)
from .geo import (
_PROVINCE_CACHE,
PROVINCE_BAN_LIMIT,
PROVINCE_WINDOW,
_is_private_ip,
query_ip_province,
record_login_location,
)
from .ledger import (
ledger_cleanup_settled,
ledger_get,
ledger_open,
ledger_recover_orphans,
ledger_rename,
ledger_settle,
ledger_supplement,
reserve_and_open,
)
from .logs import (
_LOG_WRITE_COUNTER,
add_log,
clear_logs,
query_logs,
)
from .mail import (
_CODE_EMAIL_TEMPLATES,
_CODE_FAILS,
_CODE_FAILS_MAX,
_CODE_PURPOSES,
_EMAIL_SENT_24H,
_SMTP_ENC_PREFIX,
_code_fails_trim,
_smtp_password_decrypt,
_smtp_password_encrypt,
check_verify_code,
get_smtp_config,
restore_verify_code,
save_smtp_config,
send_email,
send_verify_code,
smtp_configured,
)
from .security import (
_PBKDF2_ITERS,
_hash,
_hash_new,
_normalize_email,
_verify_password,
)
from .settings import (
get_announcement,
get_setting,
save_announcement,
set_setting,
)
from .users import (
RegistrationGuard,
_last_province,
_user_public,
ban_user,
create_user,
delete_user,
device_used,
get_user_by_email,
get_user_by_id,
get_user_by_name,
list_users,
register_ip_exceeded,
reset_password,
set_user_credits,
set_user_netease_cookie,
set_user_password,
set_user_status,
unban_user,
verify_login,
)
__all__ = [
'BACKUP_DIR',
'DATA_DIR',
'DB_PATH',
'DEFAULT_ADMIN_USER',
'DEFAULT_REGISTER_CREDITS',
'PROVINCE_BAN_LIMIT',
'PROVINCE_WINDOW',
'SECRET_KEY_PATH',
'SESSION_KEY',
'_BACKUP_ERR_TS',
'_BACKUP_NAME_LOCK',
'_CODE_EMAIL_TEMPLATES',
'_CODE_FAILS',
'_CODE_FAILS_MAX',
'_CODE_PURPOSES',
'_EMAIL_SENT_24H',
'_LOG_WRITE_COUNTER',
'_PBKDF2_ITERS',
'_PROVINCE_CACHE',
'_SMTP_ENC_PREFIX',
'RegistrationGuard',
'_auto_backup_loop',
'_backup_is_valid_db',
'_backup_thread_started',
'_before_restore_hook',
'_code_fails_trim',
'_hash',
'_hash_new',
'_is_private_ip',
'_last_province',
'_normalize_email',
'_q',
'_smtp_password_decrypt',
'_smtp_password_encrypt',
'_user_public',
'_verify_password',
'_x',
'add_credits',
'add_log',
'backup_path',
'ban_user',
'charge_credits',
'check_verify_code',
'clear_logs',
'create_backup',
'create_user',
'delete_backup',
'delete_card',
'delete_user',
'device_used',
'format_credits',
'generate_cards',
'get_announcement',
'get_secret_key',
'get_setting',
'get_smtp_config',
'get_user_by_email',
'get_user_by_id',
'get_user_by_name',
'init_db',
'ledger_cleanup_settled',
'ledger_get',
'ledger_open',
'ledger_recover_orphans',
'ledger_rename',
'ledger_settle',
'ledger_supplement',
'list_backups',
'list_cards',
'list_users',
'prune_backups',
'query_ip_province',
'query_logs',
'record_login_location',
'redeem_card',
'refund_credits',
'register_before_restore_hook',
'register_ip_exceeded',
'reserve_and_open',
'reserve_credits',
'reset_password',
'restore_backup',
'restore_verify_code',
'save_announcement',
'save_smtp_config',
'send_email',
'send_verify_code',
'set_card_disabled',
'set_setting',
'set_user_credits',
'set_user_netease_cookie',
'set_user_password',
'set_user_status',
'smtp_configured',
'start_auto_backup',
'unban_user',
'verify_login',
]