110 lines
3.2 KiB
Python
110 lines
3.2 KiB
Python
import re
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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
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from sqlalchemy.orm import Session
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from server.db_manager import db_manager
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from server.models.user_model import User
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from server.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
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def get_db():
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db = db_manager.get_session()
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try:
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yield db
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finally:
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db.close()
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# 获取当前用户
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async def get_current_user(token: str | None = Depends(oauth2_scheme), db: Session = Depends(get_db)):
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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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# 允许无token访问公开路径
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if token is None:
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return None
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try:
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# 验证token
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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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# 捕获AuthUtils.verify_access_token可能抛出的ValueError
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# 例如令牌过期或无效
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail=str(e), # 将错误信息直接传递给客户端
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headers={"WWW-Authenticate": "Bearer"},
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)
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# 查找用户
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user = db.query(User).filter(User.id == user_id).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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# 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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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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