92 lines
3.1 KiB
Python
92 lines
3.1 KiB
Python
from datetime import datetime, timedelta, timezone
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from typing import Optional
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from jose import JWTError, jwt
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from passlib.context import CryptContext
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from fastapi import Depends, HTTPException, status
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from fastapi.security import OAuth2PasswordBearer
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from sqlalchemy.orm import Session
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from config import get_settings
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from database import get_db
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import models
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settings = get_settings()
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/auth/login", auto_error=False)
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def verify_password(plain_password: str, hashed_password: str) -> bool:
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return pwd_context.verify(plain_password, hashed_password)
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def get_password_hash(password: str) -> str:
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return pwd_context.hash(password)
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def create_access_token(data: dict, expires_delta: Optional[timedelta] = None) -> str:
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to_encode = data.copy()
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expire = datetime.now(timezone.utc) + (
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expires_delta or timedelta(minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES)
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)
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to_encode.update({"exp": expire, "type": "access"})
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return jwt.encode(to_encode, settings.SECRET_KEY, algorithm=settings.ALGORITHM)
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def create_refresh_token(data: dict) -> str:
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to_encode = data.copy()
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expire = datetime.now(timezone.utc) + timedelta(days=settings.REFRESH_TOKEN_EXPIRE_DAYS)
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to_encode.update({"exp": expire, "type": "refresh"})
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return jwt.encode(to_encode, settings.SECRET_KEY, algorithm=settings.ALGORITHM)
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def verify_token(token: str, token_type: str) -> Optional[dict]:
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try:
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payload = jwt.decode(token, settings.SECRET_KEY, algorithms=[settings.ALGORITHM])
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if payload.get("type") != token_type:
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return None
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return payload
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except JWTError:
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return None
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def get_current_user(
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token: Optional[str] = Depends(oauth2_scheme),
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db: Session = Depends(get_db),
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) -> Optional[models.User]:
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if not token:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Not authenticated",
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headers={"WWW-Authenticate": "Bearer"},
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)
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payload = verify_token(token, "access")
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if not payload or "sub" not in payload:
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raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid token")
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user = db.query(models.User).filter(models.User.username == payload["sub"]).first()
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if not user:
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raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="User not found")
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return user
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def require_admin(user: models.User = Depends(get_current_user)):
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if user.role != "admin":
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raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Admin required")
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return user
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def create_default_admin(db: Session) -> Optional[models.User]:
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if not settings.CREATE_ADMIN_ON_STARTUP:
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return None
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existing = db.query(models.User).filter(models.User.username == settings.ADMIN_USERNAME).first()
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if existing:
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return existing
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admin = models.User(
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username=settings.ADMIN_USERNAME,
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password_hash=get_password_hash(settings.ADMIN_PASSWORD),
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role="admin",
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)
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db.add(admin)
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db.commit()
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db.refresh(admin)
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return admin
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