Files
DadaoTask/backend/app/api/auth.py
T
Steven a5510cdb79 feat(auth): 手机号也能用密码登录,验证码之外多一条路
短信通道挂了人就进不来,所以给账号加第二把自助的钥匙:设过密码的用密码进,
没设过的照旧只用验证码,不强制。

- app_user.password_hash(迁移 0008 加列)+ scrypt 哈希(标准库实现,
  n=2^14/r=8/p=1,存 scrypt$n$r$p$salt$hash),不引 passlib
- POST /auth/login/password:没设过密码与密码错都回 2013,不区分账号是否存在;
  15 分钟内连错 10 次 → 2016,期间正确密码也挡住
- POST /auth/password:设/改共用,改要先验旧密码,新旧相同算弱密码 2015
- PATCH /auth/me 改昵称;用户输出走白名单 _user_out,密码哈希一个字节都不出去
- 登录页顶部「验证码 / 密码」两段切换

tests/test_account.py 10 项;全量 pytest 113 passed,ruff 全绿。
2026-10-31 04:04:55 +08:00

248 lines
8.6 KiB
Python

"""认证:手机号 + 验证码,可选登录密码。
M0 只有验证码登录;密码是**可选**的第二条路:用户自己在账号设置里设一次,
之后登录页可以选「密码」;没设过密码的人只有验证码这一条,不受影响。
"""
from __future__ import annotations
import hmac
import secrets
from fastapi import APIRouter
from pydantic import BaseModel, Field
from sqlalchemy import select
from ..config import get_settings
from ..deps import CurrentUser, SessionDep
from ..errors import AppError, ErrorCode
from ..models import AppUser, Member, Workspace
from ..schemas import ok
from ..security import (
create_token_pair,
decode_token,
hash_password,
password_problem,
verify_password,
)
from ..stores import get_store, sms_code_key, sms_throttle_key
router = APIRouter(prefix="/auth", tags=["认证"])
settings = get_settings()
PHONE_PATTERN = r"^1[3-9]\d{9}$"
# 密码登录连错这么多次就先锁一会儿:暴力猜密码的成本必须比猜验证码高
PASSWORD_FAIL_LIMIT = 10
PASSWORD_FAIL_TTL = 900
def mask_phone(phone: str) -> str:
return f"{phone[:3]}****{phone[-4:]}" if len(phone) == 11 else "***"
def _user_out(user: AppUser) -> dict:
"""对外只给脱敏手机号;密码本身一个字节都不出去,只告诉客户端「设没设」。"""
return {
"id": str(user.id),
"phone": mask_phone(user.phone),
"nickname": user.nickname,
"avatar_url": user.avatar_url,
"has_password": bool(user.password_hash),
"created_at": user.created_at,
}
def _tokens_out(tokens) -> dict:
return {
"access_token": tokens.access_token,
"refresh_token": tokens.refresh_token,
"token_type": "bearer",
"expires_in": tokens.expires_in,
}
class SendCodeIn(BaseModel):
phone: str = Field(pattern=PHONE_PATTERN, examples=["13800138000"])
class LoginIn(BaseModel):
phone: str = Field(pattern=PHONE_PATTERN)
code: str = Field(min_length=4, max_length=8)
class PasswordLoginIn(BaseModel):
phone: str = Field(pattern=PHONE_PATTERN)
password: str = Field(min_length=1, max_length=64)
class ProfilePatch(BaseModel):
nickname: str | None = Field(default=None, min_length=1, max_length=32)
class PasswordIn(BaseModel):
"""old_password 只在「已经设过密码」时必填;第一次设密码不需要。"""
password: str = Field(min_length=1, max_length=64)
old_password: str | None = Field(default=None, max_length=64)
class RefreshIn(BaseModel):
refresh_token: str = Field(min_length=10)
@router.post("/sms/send", summary="发送登录验证码")
async def send_code(body: SendCodeIn) -> dict:
store = get_store()
if settings.sms_throttle_seconds > 0:
hits = await store.incr(sms_throttle_key(body.phone), settings.sms_throttle_seconds)
if hits > 1:
raise AppError(
ErrorCode.SMS_TOO_FREQUENT,
f"发送过于频繁,请 {settings.sms_throttle_seconds} 秒后重试",
)
if settings.sms_provider == "dev":
code = settings.sms_dev_code
else:
code = f"{secrets.randbelow(1_000_000):06d}"
# TODO(M0 遗留):接入阿里云/腾讯云短信;当前直接在响应里不回显验证码
raise AppError(ErrorCode.INTERNAL, "短信通道尚未接入", http_status=501)
await store.set(sms_code_key(body.phone), code, settings.sms_code_ttl_seconds)
return ok({"sent": True, "expires_in": settings.sms_code_ttl_seconds, "dev_code": code})
@router.post("/login", summary="验证码登录(不存在则自动注册)")
async def login(body: LoginIn, session: SessionDep) -> dict:
store = get_store()
stored = await store.get(sms_code_key(body.phone))
if stored is None:
raise AppError(ErrorCode.SMS_CODE_INVALID, "验证码已过期,请重新获取")
if not hmac.compare_digest(stored, body.code):
raise AppError(ErrorCode.SMS_CODE_INVALID, "验证码错误")
await store.delete(sms_code_key(body.phone))
user = (
await session.execute(select(AppUser).where(AppUser.phone == body.phone))
).scalar_one_or_none()
if user is None:
user = AppUser(phone=body.phone, nickname=f"用户{body.phone[-4:]}")
session.add(user)
await session.flush()
tokens = create_token_pair(user.id)
return ok({"user": _user_out(user), "tokens": _tokens_out(tokens)})
@router.post("/login/password", summary="密码登录")
async def login_password(body: PasswordLoginIn, session: SessionDep) -> dict:
"""手机号 + 密码登录。
两个细节:
- **不区分"没这个人"和"密码错"**,同一个错误码,别让登录接口变成手机号探测工具。
- 连错 PASSWORD_FAIL_LIMIT 次锁 PASSWORD_FAIL_TTL 秒;成功即清零,正常用户不会感知。
"""
store = get_store()
fail_key = f"pwd_fail:{body.phone}"
if int(await store.get(fail_key) or 0) >= PASSWORD_FAIL_LIMIT:
raise AppError(
ErrorCode.LOGIN_TOO_MANY,
f"密码错误次数过多,请 {PASSWORD_FAIL_TTL // 60} 分钟后再试,或用验证码登录",
)
user = (
await session.execute(select(AppUser).where(AppUser.phone == body.phone))
).scalar_one_or_none()
if user is None or not verify_password(body.password, user.password_hash):
await store.incr(fail_key, PASSWORD_FAIL_TTL)
raise AppError(ErrorCode.PASSWORD_INVALID, "手机号或密码不对")
if user.status != "active":
raise AppError(ErrorCode.ACCOUNT_DISABLED, "账号已停用")
await store.delete(fail_key)
tokens = create_token_pair(user.id)
return ok({"user": _user_out(user), "tokens": _tokens_out(tokens)})
@router.post("/refresh", summary="刷新访问令牌")
async def refresh(body: RefreshIn) -> dict:
user_id = decode_token(body.refresh_token, "refresh")
tokens = create_token_pair(user_id)
# 这里的形状保持扁平(不带 tokens 信封),老客户端与安卓端都按这个取
return ok(_tokens_out(tokens))
@router.get("/me", summary="当前用户与所属工作区")
async def me(user: CurrentUser, session: SessionDep) -> dict:
row = await session.get(AppUser, user.id)
if row is None:
raise AppError(ErrorCode.UNAUTHORIZED, "账号不存在")
rows = (
await session.execute(
select(Workspace, Member.role)
.join(Member, Member.workspace_id == Workspace.id)
.where(Member.user_id == user.id, Member.status == "active")
.order_by(Workspace.created_at.desc())
)
).all()
return ok(
{
"user": _user_out(row),
"workspaces": [
{
"id": str(ws.id),
"name": ws.name,
"slug": ws.slug,
"plan": ws.plan,
"role": role,
"created_at": ws.created_at,
}
for ws, role in rows
],
}
)
@router.patch("/me", summary="改自己的昵称")
async def update_me(body: ProfilePatch, user: CurrentUser, session: SessionDep) -> dict:
row = await session.get(AppUser, user.id)
if row is None:
raise AppError(ErrorCode.UNAUTHORIZED, "账号不存在")
if body.nickname is not None:
nickname = body.nickname.strip()
if not nickname:
raise AppError(ErrorCode.VALIDATION_FAILED, "昵称不能为空")
row.nickname = nickname
await session.flush()
return ok({"user": _user_out(row)})
@router.post("/password", summary="设置或修改登录密码")
async def set_password(body: PasswordIn, user: CurrentUser, session: SessionDep) -> dict:
"""已经设过密码的,必须先给旧密码——否则拿到一个没锁屏的浏览器就能把密码换掉。"""
row = await session.get(AppUser, user.id)
if row is None:
raise AppError(ErrorCode.UNAUTHORIZED, "账号不存在")
if row.password_hash:
if not body.old_password:
raise AppError(ErrorCode.PASSWORD_INVALID, "请输入当前密码")
if not verify_password(body.old_password, row.password_hash):
raise AppError(ErrorCode.PASSWORD_INVALID, "当前密码不对")
if hmac.compare_digest(body.old_password, body.password):
raise AppError(ErrorCode.PASSWORD_WEAK, "新密码不能和当前密码一样")
problem = password_problem(body.password)
if problem:
raise AppError(ErrorCode.PASSWORD_WEAK, problem)
row.password_hash = hash_password(body.password)
await session.flush()
return ok({"has_password": True})