175 lines
5.4 KiB
Python
175 lines
5.4 KiB
Python
import hashlib
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import re
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from fastapi import Depends, Header, HTTPException, status
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from fastapi.security import OAuth2PasswordBearer
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from jose import JWTError
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from sqlalchemy import select
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from sqlalchemy.ext.asyncio import AsyncSession
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from yuxi.storage.postgres.manager import pg_manager
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from yuxi.storage.postgres.models_business import APIKey, User
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from yuxi.utils.datetime_utils import utc_now_naive
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from yuxi.utils.auth_utils import AuthUtils
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# 定义OAuth2密码承载器，指定token URL
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/auth/token", auto_error=False)
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# 公开路径列表，无需登录即可访问
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PUBLIC_PATHS = [
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r"^/api/auth/token$", # 登录
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r"^/api/auth/check-first-run$", # 检查是否首次运行
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r"^/api/auth/initialize$", # 初始化系统
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r"^/api$", # Health Check
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r"^/api/system/health$", # Health Check
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r"^/api/system/info$", # 获取系统信息配置
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]
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# 获取数据库会话（异步版本）
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async def get_db():
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async with pg_manager.get_async_session_context() as db:
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yield db
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async def _verify_api_key(key: str, db: AsyncSession) -> tuple[User | None, APIKey | None]:
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"""验证 API Key 并返回关联用户和 APIKey 对象"""
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key_hash = hashlib.sha256(key.encode()).hexdigest()
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result = await db.execute(select(APIKey).filter(APIKey.key_hash == key_hash))
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api_key = result.scalar_one_or_none()
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if api_key is None:
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return None, None
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if not api_key.is_enabled:
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return None, None
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if api_key.expires_at and utc_now_naive() > api_key.expires_at:
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return None, None
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if api_key.user_id:
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result = await db.execute(select(User).filter(User.id == api_key.user_id))
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user = result.scalar_one_or_none()
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if user and not user.is_deleted:
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return user, api_key
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if api_key.department_id:
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result = await db.execute(
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select(User).filter(User.department_id == api_key.department_id, User.role.in_(["admin", "superadmin"]))
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)
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user = result.scalar_one_or_none()
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if user and not user.is_deleted:
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return user, api_key
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result = await db.execute(select(User).filter(User.role == "superadmin", User.is_deleted == 0).limit(1))
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user = result.scalar_one_or_none()
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if user:
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return user, api_key
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return None, None
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# 获取当前用户（异步版本）
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async def get_current_user(
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authorization: str | None = Header(None),
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db: AsyncSession = Depends(get_db),
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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="无效的凭证",
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headers={"WWW-Authenticate": "Bearer"},
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)
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if authorization is None:
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return None
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if not authorization.startswith("Bearer "):
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return None
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token = authorization.split("Bearer ")[1]
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if not token:
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return None
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# 根据 token 前缀判断认证方式
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if token.startswith("yxkey_"):
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# API Key 认证
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user, api_key_obj = await _verify_api_key(token, db)
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if user is not None and api_key_obj is not None:
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api_key_obj.last_used_at = utc_now_naive()
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await db.commit()
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return user
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# JWT Token 认证
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try:
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payload = AuthUtils.verify_access_token(token)
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user_id = payload.get("sub")
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if user_id 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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except ValueError as e:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail=str(e),
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headers={"WWW-Authenticate": "Bearer"},
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)
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result = await db.execute(select(User).filter(User.id == int(user_id), User.is_deleted == 0))
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user = result.scalar_one_or_none()
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if user is None:
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raise credentials_exception
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if user.is_login_locked():
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raise HTTPException(
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status_code=status.HTTP_423_LOCKED,
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detail="登录被锁定，请稍后重试",
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headers={"X-Lock-Remaining": str(user.get_remaining_lock_time())},
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)
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return user
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# 获取已登录用户（抛出401如果未登录）
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async def get_required_user(user: User | None = Depends(get_current_user)):
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if user is None:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="请登录后再访问",
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headers={"WWW-Authenticate": "Bearer"},
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)
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if not user.department_id:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="当前用户未绑定部门",
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)
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return user
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# 获取管理员用户
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async def get_admin_user(current_user: User = Depends(get_required_user)):
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if current_user.role not in ["admin", "superadmin"]:
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="需要管理员权限",
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)
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return current_user
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# 获取超级管理员用户
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async def get_superadmin_user(current_user: User = Depends(get_required_user)):
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if current_user.role != "superadmin":
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="需要超级管理员权限",
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)
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return current_user
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# 检查路径是否为公开路径
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def is_public_path(path: str) -> bool:
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path = path.rstrip("/") # 去除尾部斜杠以便于匹配
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for pattern in PUBLIC_PATHS:
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if re.match(pattern, path):
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return True
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return False
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