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All services: admin-v2, studio-v2, website, ai-compliance-sdk, consent-service, klausur-service, voice-service, and infrastructure. Large PDFs and compiled binaries excluded via .gitignore.
97 lines
2.7 KiB
Python
97 lines
2.7 KiB
Python
"""
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Auth Middleware für LLM Gateway.
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Unterstützt:
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- API Key Auth (X-API-Key Header oder Authorization Bearer)
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- JWT Token Auth (vom Consent Service)
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"""
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import logging
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from typing import Optional
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from fastapi import HTTPException, Header, Depends
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from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
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import jwt
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from ..config import get_config
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logger = logging.getLogger(__name__)
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security = HTTPBearer(auto_error=False)
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async def verify_api_key(
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x_api_key: Optional[str] = Header(None, alias="X-API-Key"),
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authorization: Optional[HTTPAuthorizationCredentials] = Depends(security),
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) -> str:
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"""
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Verifiziert den API Key oder JWT Token.
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Akzeptiert:
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- X-API-Key Header
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- Authorization: Bearer <token>
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Returns:
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str: User ID oder "api_key" bei API Key Auth
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"""
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config = get_config()
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# 1. Prüfe X-API-Key Header
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if x_api_key:
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if x_api_key in config.api_keys:
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return "api_key"
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logger.warning(f"Invalid API key attempted")
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raise HTTPException(
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status_code=401,
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detail={"error": "unauthorized", "message": "Invalid API key"},
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)
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# 2. Prüfe Authorization Header
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if authorization:
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token = authorization.credentials
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# Prüfe ob es ein API Key ist
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if token in config.api_keys:
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return "api_key"
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# Versuche JWT zu dekodieren
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if config.jwt_secret:
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try:
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payload = jwt.decode(
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token,
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config.jwt_secret,
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algorithms=["HS256"],
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)
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user_id = payload.get("user_id") or payload.get("sub")
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if user_id:
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return str(user_id)
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except jwt.ExpiredSignatureError:
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raise HTTPException(
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status_code=401,
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detail={"error": "token_expired", "message": "Token has expired"},
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)
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except jwt.InvalidTokenError as e:
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logger.warning(f"Invalid JWT token: {e}")
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raise HTTPException(
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status_code=401,
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detail={"error": "invalid_token", "message": "Invalid token"},
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)
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# 3. In Development Mode ohne Auth erlauben
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if config.debug:
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logger.warning("Auth bypassed in debug mode")
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return "debug_user"
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# 4. Keine gültige Auth gefunden
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raise HTTPException(
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status_code=401,
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detail={
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"error": "unauthorized",
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"message": "API key or valid token required",
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},
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)
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def get_current_user_id(user_id: str = Depends(verify_api_key)) -> str:
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"""Dependency um die aktuelle User ID zu bekommen."""
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return user_id
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