#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time : 2017/11/28 下午3:29
# @Author : Matrix
# @Github : https://github.com/blackmatrix7/
# @Blog : http://www.cnblogs.com/blackmatrix/
# @File : exceptions.py
# @Software: PyCharm
import types
__author__ = 'blackmatrix'
_no_value = object()
class DingTalkException(BaseException):
"""
以描述符进行异常管理：
禁止对已经设定的异常信息进行修改
读取异常信息时，每次实例化一个全新的异常实例，避免对异常信息的修改影响全局
"""
def __init__(self, err_code, err_msg, http_code=500, err_type=BaseException):
self.err_msg = err_msg
self.err_type = err_type
self.err_code = err_code
self.http_code = http_code
def __set__(self, instance, value):
raise AttributeError('禁止修改异常设定')
def __get__(self, instance, owner):
supers = (DingTalkException, self.err_type, BaseException) \
if self.err_type and self.err_type is not BaseException else (DingTalkException, BaseException)
api_ex_cls = types.new_class('DingTalkException', supers, {}, lambda ns: ns)
api_ex = api_ex_cls(err_msg=self.err_msg, err_code=self.err_code, http_code=self.http_code)
return api_ex
def __str__(self):
return '异常编号：{err_code} 异常信息：{err_msg}'.format(
err_code=self.err_code,
err_msg=self.err_msg)
# 让类实例变成可调用对象，用于接收自定义异常信息，并抛出
def __call__(self, err_msg=_no_value, *, err_code=_no_value, http_code=_no_value):
if err_msg is not _no_value:
self.err_msg = '{0}，{1}'.format(self.err_msg, err_msg)
if err_code is not _no_value:
self.err_code = err_code
if http_code is not _no_value:
self.http_code = http_code
return self
class DingTalkExceptions:
# 拒绝访问
access_denied = DingTalkException(err_code=3000, err_msg='访问拒绝')
# 获取 access token 错误
get_access_token_err = DingTalkException(err_code=3001, err_msg='获取 access token 错误')
# 获取 jsapi ticket 错误
get_jsapi_ticket_err = DingTalkException(err_code=3002, err_msg='获取 jsapi ticket 错误')
# 钉钉接口返回错误
dingtalk_resp_err = DingTalkException(err_code=3003, err_msg='钉钉接口返回错误')
# 钉钉接口参数不合法
webapi_args_err = DingTalkException(err_code=3004, err_msg='钉钉接口参数不合法')
# 签名验证失败
sign_err = DingTalkException(err_code=3005, err_msg='签名验证失败')
# 钉钉接口参数不合法
timestamp_err = DingTalkException(err_code=3006, err_msg='时间戳错误')
if __name__ == '__main__':
pass
