42 lines
1.4 KiB
Python
42 lines
1.4 KiB
Python
from functools import wraps
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from typing import Callable
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from fastapi import Depends, HTTPException, status
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from fastapi.security import OAuth2PasswordBearer
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from app.auth.cognito import get_user_from_token
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from app.models.auth import CognitoUser
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="signin")
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def get_current_user(token: str = Depends(oauth2_scheme)) -> CognitoUser:
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"""
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Dependency to get the current user from the given token.
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This will verify the token with Cognito and return the user's information.
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"""
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return get_user_from_token(token)
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def require_roles(*required_roles: str) -> Callable:
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"""
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Decorator for role-based access control.
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Use on endpoints to enforce that the user possesses all required roles.
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"""
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def decorator(endpoint: Callable) -> Callable:
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@wraps(endpoint)
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def wrapper(*args, user: CognitoUser = Depends(get_current_user), **kwargs):
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user_roles = set(user.roles or [])
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needed_roles = set(required_roles)
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if not needed_roles.issubset(user_roles):
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="You do not have the required roles to access this endpoint.",
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)
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return endpoint(*args, user=user, **kwargs)
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return wrapper
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return decorator
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