mirror of
https://github.com/fastapi-practices/fastapi-best-architecture.git
synced 2026-09-21 13:12:24 +00:00
84 lines
2.8 KiB
Python
84 lines
2.8 KiB
Python
#!/usr/bin/env python3
|
|
# -*- coding: utf-8 -*-
|
|
from typing import Any
|
|
|
|
from fastapi import Request, Response
|
|
from fastapi.security.utils import get_authorization_scheme_param
|
|
from starlette.authentication import AuthCredentials, AuthenticationBackend, AuthenticationError
|
|
from starlette.requests import HTTPConnection
|
|
|
|
from backend.app.admin.schema.user import GetUserInfoWithRelationDetail
|
|
from backend.common.exception.errors import TokenError
|
|
from backend.common.log import log
|
|
from backend.common.security.jwt import jwt_authentication
|
|
from backend.core.conf import settings
|
|
from backend.utils.serializers import MsgSpecJSONResponse
|
|
|
|
|
|
class _AuthenticationError(AuthenticationError):
|
|
"""重写内部认证错误类"""
|
|
|
|
def __init__(
|
|
self, *, code: int | None = None, msg: str | None = None, headers: dict[str, Any] | None = None
|
|
) -> None:
|
|
"""
|
|
初始化认证错误
|
|
|
|
:param code: 错误码
|
|
:param msg: 错误信息
|
|
:param headers: 响应头
|
|
:return:
|
|
"""
|
|
self.code = code
|
|
self.msg = msg
|
|
self.headers = headers
|
|
|
|
|
|
class JwtAuthMiddleware(AuthenticationBackend):
|
|
"""JWT 认证中间件"""
|
|
|
|
@staticmethod
|
|
def auth_exception_handler(conn: HTTPConnection, exc: _AuthenticationError) -> Response:
|
|
"""
|
|
覆盖内部认证错误处理
|
|
|
|
:param conn: HTTP 连接对象
|
|
:param exc: 认证错误对象
|
|
:return:
|
|
"""
|
|
return MsgSpecJSONResponse(content={'code': exc.code, 'msg': exc.msg, 'data': None}, status_code=exc.code)
|
|
|
|
async def authenticate(self, request: Request) -> tuple[AuthCredentials, GetUserInfoWithRelationDetail] | None:
|
|
"""
|
|
认证请求
|
|
|
|
:param request: FastAPI 请求对象
|
|
:return:
|
|
"""
|
|
token = request.headers.get('Authorization')
|
|
if not token:
|
|
return None
|
|
|
|
path = request.url.path
|
|
if path in settings.TOKEN_REQUEST_PATH_EXCLUDE:
|
|
return None
|
|
for pattern in settings.TOKEN_REQUEST_PATH_EXCLUDE_PATTERN:
|
|
if pattern.match(path):
|
|
return None
|
|
|
|
scheme, token = get_authorization_scheme_param(token)
|
|
if scheme.lower() != 'bearer':
|
|
return None
|
|
|
|
try:
|
|
user = await jwt_authentication(token)
|
|
except TokenError as exc:
|
|
raise _AuthenticationError(code=exc.code, msg=exc.detail, headers=exc.headers)
|
|
except Exception as e:
|
|
log.exception(f'JWT 授权异常：{e}')
|
|
raise _AuthenticationError(code=getattr(e, 'code', 500), msg=getattr(e, 'msg', 'Internal Server Error'))
|
|
|
|
# 请注意，此返回使用非标准模式，所以在认证通过时，将丢失某些标准特性
|
|
# 标准返回模式请查看：https://www.starlette.io/authentication/
|
|
return AuthCredentials(['authenticated']), user
|