75 lines
2.9 KiB
Python
75 lines
2.9 KiB
Python
from datetime import datetime, timedelta
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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.settings import settings
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from config.database import get_db
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from models.user import User
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from schemas.user import TokenData
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/auth/login")
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def verify_password(plain_password: str, hashed_password: str) -> bool:
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"""Verify a plain password against a hashed password."""
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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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"""Generate a password hash."""
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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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"""Create a JWT access token."""
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to_encode = data.copy()
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if expires_delta:
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expire = datetime.utcnow() + expires_delta
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else:
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expire = datetime.utcnow() + timedelta(minutes=settings.JWT_EXPIRATION_MINUTES)
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to_encode.update({"exp": expire})
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encoded_jwt = jwt.encode(to_encode, settings.JWT_SECRET_KEY, algorithm=settings.JWT_ALGORITHM)
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return encoded_jwt
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def verify_token(token: str, credentials_exception) -> TokenData:
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"""Verify a JWT token and return the token data."""
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try:
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payload = jwt.decode(token, settings.JWT_SECRET_KEY, algorithms=[settings.JWT_ALGORITHM])
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user_id: int = payload.get("sub")
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email: str = payload.get("email")
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if user_id is None:
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raise credentials_exception
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token_data = TokenData(user_id=user_id, email=email)
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return token_data
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except JWTError:
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raise credentials_exception
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async def get_current_user(token: str = Depends(oauth2_scheme), db: Session = Depends(get_db)) -> User:
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"""Get the current authenticated user."""
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credentials_exception = 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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token_data = verify_token(token, credentials_exception)
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user = db.query(User).filter(User.id == token_data.user_id).first()
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if user is None:
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raise credentials_exception
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return user
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async def get_current_active_user(current_user: User = Depends(get_current_user)) -> User:
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"""Get the current active user."""
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if not current_user.is_active:
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raise HTTPException(status_code=400, detail="Inactive user")
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return current_user
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async def get_admin_user(current_user: User = Depends(get_current_active_user)) -> User:
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"""Get the current admin user."""
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if not current_user.is_admin:
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="Not enough permissions"
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)
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return current_user
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