class RestorePasswordView(APIView):
    serializer_class = SMSRequestSerializer
    authentication_classes = (CsrfExemptSessionAuthentication, BasicAuthentication)

    def post(self, request, *args, **kwargs):
        data = request.data
        serializer = SMSRequestSerializer(data=data)
        if serializer.is_valid(raise_exception=True):
            phone = serializer.data.get('phone')

            try:
                user = User.objects.get(username=phone)
            except User.DoesNotExist:
                return Response("Пользователь с данным номером не зарегистрирован", status=404)

            password = self.generate_code()
            sms_text = urllib_request.quote("Ваш новый пароль на сайте Durex: ")
            sms_text += password
            url = "http://sms.ru/sms/send?api_id=%s&from=%s&to=%s&msg=%s" % (SMS_API_ID, 'Durex', phone, sms_text)

            try:
                res = urlopen(url, timeout=10)
                print("GET: %s %s\nReply:\n%s" % (res.geturl(), res.msg, res.info()))
                user.set_password(password)
                user.save()
            except URLError as errstr:
                print("smssend[debug]: %s" % url)
                return Response('sms.ru failed', status=400)
            return Response('Password sent', status=200)
        return Response(serializer.errors, status=400)

    def generate_code(self):
        return ''.join(random.SystemRandom().choice(string.ascii_uppercase + string.digits) for _ in range(8))