72 lines
2.3 KiB
Python
72 lines
2.3 KiB
Python
import hashlib
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import secrets
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from datetime import datetime, timezone
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from fastapi import Request, HTTPException, status
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from fastapi.responses import RedirectResponse
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from sqlalchemy import select
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from app.models.base import async_session
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from app.models.user import User
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from app.models.auth import Session
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def hash_password(password: str) -> str:
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salt = secrets.token_hex(16)
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h = hashlib.sha256((salt + password).encode()).hexdigest()
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return f"{salt}:{h}"
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def verify_password(password: str, hashed: str) -> bool:
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salt, h = hashed.split(":", 1)
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return h == hashlib.sha256((salt + password).encode()).hexdigest()
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async def create_session(user_id: int) -> str:
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token = secrets.token_hex(32)
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async with async_session() as session:
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db_session = Session(
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user_id=user_id,
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token=token,
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created_at=datetime.now(timezone.utc).isoformat(),
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)
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session.add(db_session)
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await session.commit()
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return token
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async def get_current_user(request: Request):
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token = request.cookies.get("session_token")
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if not token:
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raise HTTPException(status_code=status.HTTP_303_SEE_OTHER, headers={"Location": "/login"})
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async with async_session() as session:
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result = await session.execute(
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select(Session).where(Session.token == token)
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)
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db_session = result.scalar_one_or_none()
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if not db_session:
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raise HTTPException(status_code=status.HTTP_303_SEE_OTHER, headers={"Location": "/login"})
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result = await session.execute(
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select(User).where(User.id == db_session.user_id)
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)
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user = result.scalar_one_or_none()
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if not user:
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raise HTTPException(status_code=status.HTTP_303_SEE_OTHER, headers={"Location": "/login"})
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return user
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async def optional_user(request: Request):
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token = request.cookies.get("session_token")
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if not token:
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return None
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async with async_session() as session:
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result = await session.execute(
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select(Session).where(Session.token == token)
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)
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db_session = result.scalar_one_or_none()
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if not db_session:
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return None
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result = await session.execute(
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select(User).where(User.id == db_session.user_id)
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)
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return result.scalar_one_or_none()
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