9feeaa79c8
- Add services/auth/app/config.py with JWT_PRIVATE_KEY and JWT_PUBLIC_KEY (Auth Service local config - private key never leaves this service) - Update routes.py: sign tokens with RS256 private key - Update deps.py + verify.py: verify tokens with RS256 public key - Update shared/config.py: replace JWT_SECRET/JWT_ALGORITHM with JWT_PUBLIC_KEY (for optional local verification by other services) - Add sys.path fix in main.py for local dev without PYTHONPATH
70 lines
2.2 KiB
Python
70 lines
2.2 KiB
Python
"""Auth dependencies — JWT validation for the Auth Service.
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This is the canonical get_current_user used by protected endpoints
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within the Auth Service itself (/me, /me PUT).
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"""
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from __future__ import annotations
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from fastapi import Depends, HTTPException, status
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from fastapi.security import OAuth2PasswordBearer
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from jose import JWTError, jwt
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from sqlalchemy import select
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from sqlalchemy.ext.asyncio import AsyncSession
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from shared.config import settings
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from shared.db import get_session
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from shared.models import Subscription, User
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from shared.schemas import UserProfile
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from app.config import auth_settings
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/v1/auth/login")
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async def get_current_user(
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token: str = Depends(oauth2_scheme),
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db: AsyncSession = Depends(get_session),
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) -> UserProfile:
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"""Validate a Bearer JWT and return the authenticated user.
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The JWT is used for identity and expiry. Tier is fetched live from the
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subscriptions table so upgrades/downgrades take effect immediately.
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"""
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credentials_exc = HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Could not validate credentials",
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headers={"WWW-Authenticate": "Bearer"},
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)
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try:
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payload = jwt.decode(
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token, auth_settings.JWT_PUBLIC_KEY, algorithms=["RS256"]
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)
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user_id: str | None = payload.get("sub")
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email: str | None = payload.get("email")
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if not user_id or not email:
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raise credentials_exc
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except JWTError:
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raise credentials_exc
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# Live tier lookup
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result = await db.execute(
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select(Subscription.tier).where(Subscription.user_id == user_id)
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)
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default_tier = "power" if settings.ENV == "dev" else "free"
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tier: str = result.scalar_one_or_none() or default_tier
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# Fetch name/surname
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user_result = await db.execute(
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select(User.name, User.surname).where(User.id == user_id)
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)
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user_row = user_result.one_or_none()
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return UserProfile(
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id=user_id,
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email=email,
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name=user_row.name if user_row else None,
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surname=user_row.surname if user_row else None,
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tier=tier,
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) # type: ignore[arg-type]
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