dschlueter
9eb5c31eb6
- Anzeigename Voice Assistant -> Alexis (UI-Titel/Kopfzeile mit Untertitel „Ihr Sprachbegleiter", FastAPI-Titel, README/Handbuch). Technische Identifier (Dienst, Pfade, Paketname, Konfig-/DB-Dateinamen) bleiben unveraendert. - Version als EINE Quelle: pyproject.toml = 0.2.0; app.__version__ liest sie (pyproject zuerst, Paket-Metadaten als Fallback). Sichtbar in der UI-Kopfzeile, unter /api/config (version) und in OpenAPI. - CHANGELOG.md mit 0.2.0-Eintrag; Tests fuer /api/config.version + Branding. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
149 lines
6.7 KiB
Python
149 lines
6.7 KiB
Python
import asyncio
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import time
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from contextlib import asynccontextmanager
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from pathlib import Path
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from fastapi import FastAPI, Request
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from fastapi.staticfiles import StaticFiles
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from starlette.responses import RedirectResponse, JSONResponse, HTMLResponse
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from app import __version__
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from app.config import settings
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from urllib.parse import urlencode
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from app.auth import authenticate, _bearer_token, CAPABILITY_COOKIE
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from app.dependencies import get_store
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from app.core.warmup import warmup_local_models
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from app.metrics import metrics
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from app.api.health import router as health_router
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from app.api.chat import router as chat_router
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from app.api.transcribe import router as transcribe_router
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from app.api.speak import router as speak_router
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from app.api.devices import router as devices_router
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from app.api.sessions import router as sessions_router
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from app.api.config import router as config_router
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from app.api.admin import router as admin_router
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from app.api.me import router as me_router
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from app.api.metrics import router as metrics_router
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from app.api.ws import router as ws_router
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# --- Logging: App-eigene Logger sichtbar machen ---------------------------
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# uvicorn konfiguriert nur seine eigenen Logger; "app.*"-INFO-Logs (z. B. die
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# Notruf-Diagnose) würden sonst durch den Default-Level (WARNING) verschluckt.
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import logging
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import os
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_app_logger = logging.getLogger("app")
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_app_logger.setLevel(getattr(logging, os.getenv("LOG_LEVEL", "INFO").upper(), logging.INFO))
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if not _app_logger.handlers:
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_log_handler = logging.StreamHandler()
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_log_handler.setFormatter(logging.Formatter("%(levelname)s:%(name)s:%(message)s"))
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_app_logger.addHandler(_log_handler)
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_app_logger.propagate = False
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@asynccontextmanager
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async def _lifespan(app: FastAPI):
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# Lokale Modelle im Hintergrund vorladen -> Server ist sofort verfuegbar,
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# der erste Nutzer zahlt nicht den Kaltstart.
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task = asyncio.create_task(warmup_local_models())
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yield
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if not task.done():
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task.cancel()
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app = FastAPI(title="Alexis", version=__version__, lifespan=_lifespan)
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@app.middleware("http")
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async def record_metrics(request: Request, call_next):
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start = time.perf_counter()
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response = await call_next(request)
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duration = time.perf_counter() - start
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# Route-Template (z. B. /api/sessions/{session_id}/route) statt konkreter URL,
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# um die Label-Kardinalitaet niedrig zu halten.
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route = request.scope.get("route")
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path = getattr(route, "path", request.url.path)
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labels = {"method": request.method, "path": path}
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metrics.inc("http_requests_total", {**labels, "status": response.status_code})
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metrics.observe("http_request_duration_seconds", duration, labels)
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return response
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# Pfade mit eigener Auth, Health-Checks und Favicons: nicht gaten.
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_NO_ACCESS_PAGE = """<!doctype html><html lang="de"><head><meta charset="utf-8">
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<meta name="viewport" content="width=device-width,initial-scale=1"><title>Zugang</title>
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<style>body{font-family:system-ui,-apple-system,sans-serif;background:#f8fafc;color:#1e293b;
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display:grid;place-items:center;min-height:100vh;margin:0;padding:1.5rem}
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.box{max-width:30rem;text-align:center}h1{font-size:1.3rem;margin:0 0 .75rem}
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p{color:#475569;line-height:1.6;margin:.5rem 0}.emoji{font-size:2.5rem}
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.btn{display:inline-block;margin-top:1.25rem;background:#2563eb;color:#fff;text-decoration:none;
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font-weight:600;font-size:1.05rem;padding:.8rem 1.4rem;border-radius:.75rem}</style></head>
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<body><div class="box"><div class="emoji">🔒</div>
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<h1>Persönlicher Zugang nötig</h1>
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<p>Senioren: bitte die App über den persönlichen Zugangslink öffnen.</p>
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<p>Betreuer und Admins können sich mit Benutzername und Passwort anmelden:</p>
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<a class="btn" href="/login">Mit Benutzername & Passwort anmelden</a>
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</div></body></html>"""
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_PUBLIC_PREFIXES = ("/api", "/ws", "/health", "/favicon", "/apple-touch-icon")
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@app.middleware("http")
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async def gate_web_ui(request: Request, call_next):
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"""Schuetzt die statische Web-UI: unauthentifizierte Seitenaufrufe -> SSO-Login (sonst 401).
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Defense-in-Depth zusaetzlich zu SSOwat: Selbst wenn der Reverse-Proxy einen
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unauthentifizierten Request durchliesse (oder jemand den Port direkt trifft),
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bekommt er die Seite nicht ausgeliefert. API/WS haben ihre eigene Auth (require_user
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-> 401/JSON), Health-Checks bleiben offen. Bei abgeschalteter Auth (LAN-Dev) liefert
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authenticate() einen anonymen Nutzer -> die Seite wird wie bisher ausgeliefert.
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"""
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path = request.url.path
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if not path.startswith(_PUBLIC_PREFIXES):
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# Ein-Klick-Link: ?k=<token> -> Token im Cookie speichern, aus der URL entfernen.
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k = request.query_params.get("k")
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if k and get_store().get_user_by_token(k):
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params = {kk: vv for kk, vv in request.query_params.items() if kk != "k"}
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clean = path + ("?" + urlencode(params) if params else "")
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resp = RedirectResponse(clean, status_code=303)
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resp.set_cookie(CAPABILITY_COOKIE, k, httponly=True, secure=True,
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samesite="lax", max_age=31536000)
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return resp
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client_host = request.client.host if request.client else ""
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token = (_bearer_token(request.headers.get("authorization"))
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or k or request.cookies.get(CAPABILITY_COOKIE))
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if authenticate(request.headers, client_host, token) is None:
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# Kein gültiger Zugang -> freundliche Hinweisseite (KEIN SSO-Redirect, der
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# nach dem nginx-Cutover in eine Schleife liefe). Senioren nutzen ihren Link.
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return HTMLResponse(_NO_ACCESS_PAGE, status_code=401)
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return await call_next(request)
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app.include_router(health_router)
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app.include_router(chat_router, prefix="/api")
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app.include_router(transcribe_router, prefix="/api")
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app.include_router(speak_router, prefix="/api")
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app.include_router(devices_router, prefix="/api")
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app.include_router(sessions_router, prefix="/api")
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app.include_router(config_router, prefix="/api")
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app.include_router(admin_router, prefix="/api")
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app.include_router(me_router, prefix="/api")
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app.include_router(metrics_router, prefix="/api")
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app.include_router(ws_router)
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# Statische Web-UI (same-origin -> kein CORS). Muss NACH allen API-/WS-Routen
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# gemountet werden, damit "/" nur die uebrigen Pfade abfaengt.
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class _NoCacheStaticFiles(StaticFiles):
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"""Liefert die UI ohne Caching aus -> Aenderungen sind sofort sichtbar (kein Safari-Cache)."""
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def file_response(self, *args, **kwargs):
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response = super().file_response(*args, **kwargs)
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response.headers["Cache-Control"] = "no-cache, no-store, must-revalidate"
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return response
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_WEB_DIR = Path(__file__).resolve().parent / "web"
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if _WEB_DIR.is_dir():
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app.mount("/", _NoCacheStaticFiles(directory=str(_WEB_DIR), html=True), name="web")
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