78 lines
2.1 KiB
Python
78 lines
2.1 KiB
Python
from collections.abc import Generator
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from typing import Annotated
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import jwt
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from fastapi import Depends, HTTPException, status
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from fastapi.security import OAuth2PasswordBearer
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from jwt.exceptions import InvalidTokenError
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from pydantic import ValidationError
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from sqlmodel import Session
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from app.core import security
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from app.core.config import settings
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from app.core.db import engine
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from app.models.user import (
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PermissionModule,
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PermissionPart,
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PermissionRight,
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TokenPayload,
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User,
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)
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reusable_oauth2 = OAuth2PasswordBearer(
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tokenUrl=f"{settings.API_V1_STR}/login/access-token"
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)
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def get_db() -> Generator[Session, None, None]:
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with Session(engine) as session:
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yield session
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SessionDep = Annotated[Session, Depends(get_db)]
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TokenDep = Annotated[str, Depends(reusable_oauth2)]
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def get_current_user(session: SessionDep, token: TokenDep) -> User:
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try:
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payload = jwt.decode(
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token, settings.SECRET_KEY, algorithms=[security.ALGORITHM]
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)
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token_data = TokenPayload(**payload)
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except (InvalidTokenError, ValidationError):
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="Could not validate credentials",
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)
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user = session.get(User, token_data.sub)
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if not user:
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raise HTTPException(status_code=404, detail="User not found")
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if not user.is_active:
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raise HTTPException(status_code=400, detail="Inactive user")
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return user
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CurrentUser = Annotated[User, Depends(get_current_user)]
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def get_user_permissions(
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module: PermissionModule,
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part: PermissionPart,
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current_user: CurrentUser,
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rights: PermissionRight = None,
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) -> User:
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if not current_user.has_permission(module, part, rights):
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raise HTTPException(
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status_code=403, detail="The user doesn't have enough privileges"
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)
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return current_user
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def get_current_system_admin(current_user: CurrentUser) -> User:
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return get_user_permissions(
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module=PermissionModule.SYSTEM,
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part=PermissionPart.ADMIN,
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rights=PermissionRight.ADMIN,
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current_user=current_user,
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)
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