Kitos
4f6dd838fd
- Add Pydantic schemas for Technique, Test and Evidence - Add CRUD endpoints for Techniques (list with filters, detail, create, update, review) - Add CRUD endpoints for Tests (create, detail, update, validate, reject) - Add evidence upload with SHA-256 integrity and presigned download URLs - Add MinIO/S3 storage client with bucket auto-creation on startup - Add status_service to recalculate technique coverage from test results - Add require_any_role RBAC dependency for multi-role authorization - Update README with API endpoints reference and project structure
111 lines
3.4 KiB
Python
111 lines
3.4 KiB
Python
"""
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Authentication and RBAC dependencies for FastAPI.
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Provides:
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- ``get_current_user``: decodes JWT, fetches user from DB, raises 401 on failure.
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- ``require_role``: factory that returns a dependency enforcing a specific role
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(admins always pass).
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"""
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from fastapi import Depends, HTTPException, status
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from fastapi.security import OAuth2PasswordBearer
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from jose import JWTError, jwt
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from sqlalchemy.orm import Session
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from app.config import settings
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from app.database import get_db
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from app.models.user import User
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# ---------------------------------------------------------------------------
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# OAuth2 scheme
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# ---------------------------------------------------------------------------
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/v1/auth/login")
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# ---------------------------------------------------------------------------
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# Current-user dependency
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# ---------------------------------------------------------------------------
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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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"""Decode the JWT *token*, look up the user in *db*, and return it.
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Raises :class:`~fastapi.HTTPException` **401** when:
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- the token cannot be decoded,
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- the ``sub`` claim is missing, or
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- no matching active user exists in the database.
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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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try:
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payload = jwt.decode(
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token,
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settings.SECRET_KEY,
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algorithms=[settings.ALGORITHM],
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)
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username: str | None = payload.get("sub")
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if username is None:
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raise credentials_exception
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except JWTError:
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raise credentials_exception
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user = db.query(User).filter(User.username == username).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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# ---------------------------------------------------------------------------
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# Role-based access control dependency
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# ---------------------------------------------------------------------------
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def require_role(required_role: str):
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"""Return a FastAPI dependency that enforces *required_role*.
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The dependency allows the request to proceed when
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``user.role == required_role`` **or** ``user.role == "admin"``.
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Otherwise it raises :class:`~fastapi.HTTPException` **403**.
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"""
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async def role_checker(
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current_user: User = Depends(get_current_user),
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) -> User:
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if current_user.role != required_role and current_user.role != "admin":
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="Not enough permissions",
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)
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return current_user
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return role_checker
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def require_any_role(*roles: str):
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"""Return a FastAPI dependency that enforces **any** of the given *roles*.
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Admins always pass. Usage example::
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@router.patch("/resource", dependencies=[Depends(require_any_role("red_lead", "blue_lead"))])
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"""
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async def role_checker(
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current_user: User = Depends(get_current_user),
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) -> User:
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if current_user.role != "admin" and current_user.role not in roles:
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="Not enough permissions",
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)
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return current_user
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return role_checker
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