Files
Meal-Planner/backend/app/api/auth.py
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admin 7838c49721
CI / backend (pytest + alembic) (push) Has been cancelled
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feat(auth): harden sessions + HA Ingress support
- backend: settings SESSION_COOKIE_SECURE + TRUSTED_NETWORK_AUTO_AUTH,
  require_session uses secrets.compare_digest and respects trusted-network
  opt-in, main.py adds require_family_session middleware gating all /api/
  routes except auth/admin/email-vote-token paths
- docker-compose: pass SESSION_COOKIE_SECURE + TRUSTED_NETWORK_AUTO_AUTH
  through to backend + scheduler (fixes env-file changes not reaching runtime)
- frontend: Ingress path-prefix support (APP_BASE_PATH, BrowserRouter basename,
  vite base './'), Login redirect honors APP_BASE_PATH
- nginx: no-cache headers on root + /assets/
- docs: Home Assistant Ingress install/troubleshooting + plan file
- tests: test_auth expects 401 on no-session GET

Defaults: SESSION_COOKIE_SECURE=false, TRUSTED_NETWORK_AUTO_AUTH=true
(HA is the auth boundary; MealPlanner must not be port-forwarded directly).
2026-06-30 16:11:33 -07:00

68 lines
2.1 KiB
Python

"""
Family-shared session login.
POST /api/auth/login — body ``{"password": "..."}`` — must match
``settings.SESSION_PASSWORD``. On success: signs the first FamilyProfile.id
and writes it as the ``mp_session`` cookie, returns 204.
POST /api/auth/logout — clears the cookie, returns 204.
The session is intentionally simple: a single shared family password gates
mutations behind nginx on the trusted network. No per-user auth.
"""
from fastapi import APIRouter, Depends, HTTPException, Response, status
from pydantic import BaseModel
from sqlalchemy.orm import Session
from app.config import settings
from app.database import get_db
from app.models import FamilyProfile
from app.security import SESSION_COOKIE, SESSION_MAX_AGE, issue_session
router = APIRouter()
class LoginRequest(BaseModel):
password: str
@router.post("/login")
def login(payload: LoginRequest, db: Session = Depends(get_db)):
expected = settings.SESSION_PASSWORD
if not expected:
raise HTTPException(
status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
detail="Session auth not configured",
)
if payload.password != expected:
raise HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid password"
)
profile = db.query(FamilyProfile).first()
# If no profile exists yet, sign a placeholder so the cookie still
# validates; the family-id will be re-issued the first time a profile
# is created. This avoids login being blocked on first-run.
family_id = str(profile.id) if profile else "bootstrap"
cookie_value = issue_session(family_id)
response = Response(status_code=status.HTTP_204_NO_CONTENT)
response.set_cookie(
key=SESSION_COOKIE,
value=cookie_value,
max_age=SESSION_MAX_AGE,
httponly=True,
secure=settings.SESSION_COOKIE_SECURE,
samesite="lax",
path="/",
)
return response
@router.post("/logout")
def logout():
response = Response(status_code=status.HTTP_204_NO_CONTENT)
response.delete_cookie(key=SESSION_COOKIE, path="/")
return response