mirror of
https://github.com/mblanke/ThreatHunt.git
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109 lines
2.8 KiB
Python
109 lines
2.8 KiB
Python
from typing import List, Optional
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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 app.core.database import get_db
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from app.core.security import verify_token
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from app.models.user import User
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# OAuth2 scheme for token extraction
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/auth/login")
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async def get_current_user(
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token: str = Depends(oauth2_scheme),
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db: Session = Depends(get_db)
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) -> User:
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"""
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Extract and validate JWT from Authorization header
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Args:
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token: JWT token from Authorization header
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db: Database session
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Returns:
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Current user object
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Raises:
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HTTPException: If token is invalid or user not found
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"""
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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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# Verify and decode token
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payload = verify_token(token)
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if payload is None:
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raise credentials_exception
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user_id: Optional[int] = payload.get("sub")
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if user_id is None:
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raise credentials_exception
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# Get user from database
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user = db.query(User).filter(User.id == 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(
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current_user: User = Depends(get_current_user)
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) -> User:
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"""
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Ensure user is active
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Args:
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current_user: Current user from get_current_user
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Returns:
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Active user object
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Raises:
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HTTPException: If user is inactive
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"""
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if not current_user.is_active:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="Inactive user"
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)
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return current_user
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def require_role(allowed_roles: List[str]):
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"""
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Role-based access control dependency factory
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Args:
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allowed_roles: List of roles that are allowed to access the endpoint
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Returns:
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Dependency function that checks user role
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"""
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async def role_checker(current_user: User = Depends(get_current_active_user)) -> User:
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if current_user.role not in allowed_roles:
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="Insufficient permissions"
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)
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return current_user
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return role_checker
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async def get_tenant_id(current_user: User = Depends(get_current_active_user)) -> int:
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"""
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Extract tenant_id from current user for scoping queries
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Args:
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current_user: Current active user
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Returns:
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Tenant ID
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"""
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return current_user.tenant_id
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