52 lines
1.6 KiB
Python
52 lines
1.6 KiB
Python
"""Authentication, session management, and role enforcement."""
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from typing import Annotated
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from argon2 import PasswordHasher
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from argon2.exceptions import VerifyMismatchError
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from fastapi import Depends, HTTPException, Request
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from sqlmodel import Session, select
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from ten31portal.database import get_session
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from ten31portal.models import User, UserRole
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ph = PasswordHasher()
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def hash_password(password: str) -> str:
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return ph.hash(password)
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def verify_password(password: str, password_hash: str) -> bool:
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try:
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return ph.verify(password_hash, password)
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except VerifyMismatchError:
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return False
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def get_current_user(request: Request, session: Session = Depends(get_session)) -> User:
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"""FastAPI dependency: extract user from session cookie."""
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user_id = request.session.get("user_id")
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if user_id is None:
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raise HTTPException(status_code=401, detail="Not authenticated")
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user = session.get(User, user_id)
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if user is None or not user.is_active:
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raise HTTPException(status_code=401, detail="Not authenticated")
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return user
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def require_role(*roles: UserRole):
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"""Return a dependency that enforces one of the given roles."""
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def checker(user: User = Depends(get_current_user)) -> User:
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if user.role not in roles:
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raise HTTPException(status_code=403, detail="Insufficient permissions")
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return user
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return checker
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# Convenience aliases
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require_user = get_current_user
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require_writer = require_role(UserRole.fund_admin, UserRole.cfo, UserRole.approver)
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require_approver = require_role(UserRole.approver)
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require_audit_reader = require_role(UserRole.approver, UserRole.cfo)
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