62 lines
1.9 KiB
Python
62 lines
1.9 KiB
Python
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"""POST /api/auth/login — username/password sign-in for the SPA.
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Exchanges admin credentials (``Settings.admin_user`` / ``admin_password``,
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env-overridable) for the shared ``api_token`` so browser users never have to
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handle the raw token string. The endpoint is exempt from the shared-token
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middleware (see ``app.api.auth._PUBLIC_PATHS``) and rate-limited per IP by the
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brute-force guard in ``app.api.auth``.
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"""
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from __future__ import annotations
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import secrets
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from fastapi import APIRouter, HTTPException, Request, status
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from pydantic import BaseModel
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from app.api.auth import (
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_client_ip,
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_login_locked_out,
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_record_login_failure,
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_reset_login_failures,
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)
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from app.config import get_settings
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router = APIRouter(prefix="/api/auth", tags=["auth"])
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class LoginBody(BaseModel):
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username: str
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password: str
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@router.post("/login")
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async def login(body: LoginBody, request: Request) -> dict[str, str]:
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settings = get_settings()
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ip = _client_ip(request)
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if _login_locked_out(ip):
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raise HTTPException(
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status_code=status.HTTP_429_TOO_MANY_REQUESTS,
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detail="尝试次数过多,请 15 分钟后再试",
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)
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credentials_ok = secrets.compare_digest(
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body.username.encode("utf-8"), settings.admin_user.encode("utf-8")
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) and secrets.compare_digest(
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body.password.encode("utf-8"), settings.admin_password.encode("utf-8")
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)
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if not credentials_ok:
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# Same generic message for unknown user / wrong password (no
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# user enumeration).
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_record_login_failure(ip)
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="用户名或密码错误",
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)
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_reset_login_failures(ip)
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# Empty token when auth is disabled — the SPA stores it and the request
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# interceptor simply skips the empty value.
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return {"token": settings.api_token}
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