85 lines
2.9 KiB
Python
85 lines
2.9 KiB
Python
import uuid
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from datetime import datetime, timedelta, timezone
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import jwt
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from fastapi import Cookie, Depends, HTTPException, status
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from pwdlib import PasswordHash
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from sqlalchemy import select
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from sqlalchemy.orm import Session
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from .config import settings
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from .database import get_db
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from .models import UserAccount
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COOKIE_NAME = "urmi_session"
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ADMIN_COOKIE_NAME = "urmi_admin_session"
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password_hash = PasswordHash.recommended()
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def normalize_email(email: str) -> str:
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return email.strip().casefold()
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def create_token(user_id: uuid.UUID, purpose: str = "session", minutes: int | None = None) -> str:
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now = datetime.now(timezone.utc)
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return jwt.encode(
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{
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"sub": str(user_id),
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"purpose": purpose,
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"iat": now,
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"exp": now + timedelta(minutes=minutes or settings.access_token_minutes),
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},
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settings.auth_secret,
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algorithm="HS256",
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)
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def decode_token(token: str, purpose: str = "session") -> dict:
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try:
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payload = jwt.decode(token, settings.auth_secret, algorithms=["HS256"])
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if payload.get("purpose") != purpose:
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raise ValueError("invalid token purpose")
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return payload
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except (jwt.PyJWTError, ValueError) as exc:
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raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid session") from exc
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def current_user(
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urmi_session: str | None = Cookie(default=None, alias=COOKIE_NAME),
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db: Session = Depends(get_db),
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) -> UserAccount:
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if not urmi_session:
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raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Authentication required")
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payload = decode_token(urmi_session)
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try:
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user_id = uuid.UUID(payload["sub"])
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except (KeyError, ValueError) as exc:
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raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid session") from exc
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user = db.scalar(select(UserAccount).where(UserAccount.id == user_id))
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if not user or user.status != "active":
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raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Account unavailable")
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return user
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def create_admin_token(username: str) -> str:
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now = datetime.now(timezone.utc)
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return jwt.encode(
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{
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"sub": username,
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"purpose": "admin_session",
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"iat": now,
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"exp": now + timedelta(minutes=settings.access_token_minutes),
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},
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settings.auth_secret,
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algorithm="HS256",
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)
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def current_admin(urmi_admin_session: str | None = Cookie(default=None, alias=ADMIN_COOKIE_NAME)) -> str:
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if not urmi_admin_session:
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raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Admin authentication required")
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payload = decode_token(urmi_admin_session, purpose="admin_session")
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username = payload.get("sub")
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if username != settings.admin_username:
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raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid admin session")
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return username
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