import jwt
# from jwt import exceptions
from rest_framework.authentication import BaseAuthentication
from rest_framework.exceptions import AuthenticationFailed


class JwtAutentication(BaseAuthentication):
    def authenticate(self, request):
        token = request.META.get('HTTP_ACCESSTOKEN')
        SALT = 'django-insecure-zo64fvv02msf-se7!dek5*w$17#3nh6zta#!i=79bt9d#f88@i'

        try:
            payload = jwt.decode(token, SALT, True)
        # except exceptions.ExpiredSignatureError:
        #     raise AuthenticationFailed({'code': 1003, "error": "token已失效"})
        except jwt.DecodeError:
            raise AuthenticationFailed({'code': 1005, 'error': "token认证失败"})
        except jwt.InvalidTokenError:
            raise AuthenticationFailed({'code': 1003, 'error': "非法token"})

        return