68 lines
2.1 KiB
Python
68 lines
2.1 KiB
Python
"""Auth — JWT tokens, password hashing, admin guard."""
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import os
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from datetime import datetime, timedelta, timezone
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import bcrypt
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import jwt
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from fastapi import Depends, HTTPException, Request, status
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from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer
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from sqlalchemy.orm import Session
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from database import get_db
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from models import User
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JWT_SECRET = os.environ.get("VELA_JWT_SECRET", "change-me-in-production")
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JWT_ALGORITHM = "HS256"
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JWT_EXPIRE_HOURS = 24
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bearer_scheme = HTTPBearer(auto_error=False)
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def hash_password(password: str) -> str:
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return bcrypt.hashpw(password.encode(), bcrypt.gensalt()).decode()
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def verify_password(password: str, hashed: str) -> bool:
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return bcrypt.checkpw(password.encode(), hashed.encode())
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def create_access_token(user_id: int) -> str:
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payload = {
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"sub": str(user_id),
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"exp": datetime.now(timezone.utc) + timedelta(hours=JWT_EXPIRE_HOURS),
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"iat": datetime.now(timezone.utc),
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}
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return jwt.encode(payload, JWT_SECRET, algorithm=JWT_ALGORITHM)
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def get_current_user(
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request: Request,
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creds: HTTPAuthorizationCredentials | None = Depends(bearer_scheme),
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db: Session = Depends(get_db),
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) -> User:
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"""Try JWT header first, then fall back to cookie."""
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token = None
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if creds:
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token = creds.credentials
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elif "vela_token" in request.cookies:
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token = request.cookies["vela_token"]
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if not token:
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raise HTTPException(status_code=401, detail="Not authenticated")
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try:
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payload = jwt.decode(token, JWT_SECRET, algorithms=[JWT_ALGORITHM])
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user_id = int(payload["sub"])
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except (jwt.ExpiredSignatureError, jwt.InvalidTokenError, KeyError, ValueError):
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raise HTTPException(status_code=401, detail="Invalid or expired token")
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user = db.query(User).filter(User.id == user_id, User.active == True).first()
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if not user:
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raise HTTPException(status_code=401, detail="User not found")
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return user
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def require_admin(user: User = Depends(get_current_user)) -> User:
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"""Currently all users are admins — placeholder for future roles."""
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return user
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