68 lines
1.9 KiB
Python
68 lines
1.9 KiB
Python
import secrets
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from datetime import datetime, timedelta
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from typing import Optional
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import bcrypt
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from fastapi import Cookie, Depends, HTTPException, Request, status
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from sqlmodel import Session, select
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from app.database import get_session
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from app.models import Session as SessionModel
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from app.models import User
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def hash_password(password: str) -> str:
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password_bytes = password.encode("utf-8")
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salt = bcrypt.gensalt()
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hashed = bcrypt.hashpw(password_bytes, salt)
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return hashed.decode("utf-8")
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def verify_password(plain_password: str, hashed_password: str) -> bool:
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password_bytes = plain_password.encode("utf-8")
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hashed_bytes = hashed_password.encode("utf-8")
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return bcrypt.checkpw(password_bytes, hashed_bytes)
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def create_session(
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user_id: int, request: Request, db: Session, expires_in_days: int = 30
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) -> str:
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session_id = secrets.token_urlsafe(32)
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expires_at = datetime.now() + timedelta(days=expires_in_days)
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db_session = SessionModel(
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session_id=session_id,
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user_id=user_id,
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expires_at=expires_at,
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ip_address=request.client.host,
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user_agent=request.headers.get("user-agent"),
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)
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db.add(db_session)
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db.commit()
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return session_id
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def get_session_user(session_id: Optional[str], db: Session) -> Optional[User]:
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if not session_id:
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return None
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session = db.exec(
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select(SessionModel).where(SessionModel.session_id == session_id)
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).first()
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if not session or session.expires_at < datetime.now():
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return None
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return session.user
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async def require_auth(
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session_id: Optional[str] = Cookie(None), db: Session = Depends(get_session)
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) -> User:
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user = get_session_user(session_id, db)
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if not user:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED, detail="Not authenticated"
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)
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return user
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