114 lines
3.4 KiB
Python
114 lines
3.4 KiB
Python
"""인증 서비스 — JWT 토큰 + 비밀번호 해싱"""
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from datetime import datetime, timezone, timedelta
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from typing import Optional
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from fastapi import Depends, HTTPException, status
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from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
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from jose import JWTError, jwt
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from passlib.context import CryptContext
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from sqlalchemy import select
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.config import get_settings
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from app.database import get_db
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from app.models import User, UserRole
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settings = get_settings()
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
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security = HTTPBearer(auto_error=False)
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# ── 비밀번호 ──
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def hash_password(password: str) -> str:
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return pwd_context.hash(password)
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def verify_password(plain: str, hashed: str) -> bool:
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return pwd_context.verify(plain, hashed)
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# ── JWT 토큰 ──
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def create_token(user_id: int, username: str, role: str) -> str:
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expire = datetime.now(timezone.utc) + timedelta(
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minutes=settings.JWT_EXPIRE_MINUTES
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)
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payload = {
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"sub": str(user_id),
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"username": username,
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"role": role,
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"exp": expire,
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}
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return jwt.encode(payload, settings.JWT_SECRET, algorithm=settings.JWT_ALGORITHM)
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def decode_token(token: str) -> Optional[dict]:
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try:
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payload = jwt.decode(
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token, settings.JWT_SECRET, algorithms=[settings.JWT_ALGORITHM]
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)
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return payload
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except JWTError:
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return None
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# ── FastAPI 인증 의존성 ──
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async def get_current_user(
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credentials: Optional[HTTPAuthorizationCredentials] = Depends(security),
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db: AsyncSession = Depends(get_db),
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) -> User:
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"""현재 로그인된 사용자 반환 — 인증 필수 엔드포인트에 사용"""
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if not credentials:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="인증이 필요합니다",
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headers={"WWW-Authenticate": "Bearer"},
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)
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payload = decode_token(credentials.credentials)
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if not payload:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="유효하지 않은 토큰입니다",
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)
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user_id = int(payload.get("sub", 0))
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result = await db.execute(select(User).where(User.id == user_id))
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user = result.scalar_one_or_none()
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if not user or not user.is_active:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="비활성화된 계정입니다",
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)
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return user
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async def require_admin(user: User = Depends(get_current_user)) -> User:
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"""관리자 권한 필수"""
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if user.role != UserRole.ADMIN:
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="관리자 권한이 필요합니다",
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)
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return user
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async def optional_auth(
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credentials: Optional[HTTPAuthorizationCredentials] = Depends(security),
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db: AsyncSession = Depends(get_db),
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) -> Optional[User]:
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"""인증 선택 — 토큰 있으면 사용자 반환, 없으면 None"""
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if not credentials:
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return None
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payload = decode_token(credentials.credentials)
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if not payload:
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return None
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user_id = int(payload.get("sub", 0))
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result = await db.execute(select(User).where(User.id == user_id))
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return result.scalar_one_or_none()
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