__init__.py 文件源码

def _hello(self):
        self._logger.debug('hello')
        if self._serial and self._challenge:
            self._hello_sent = True
            self._status_now = True
            self._logger.debug('emit hello')
            self._printer_type = self._settings.get(["printer_type"])
            camUrl = self._settings.global_get(["webcam", "stream"])
            try:
                if camUrl:
                    camUrl = normalize_url(camUrl)
            except:
                self._logger.exception("Unable to canonicalize the url {}".format(camUrl))
            self._logger.debug("camUrl: {}".format(camUrl))
            transformImg = 0
            if self._settings.global_get(["webcam", "flipH"]):
                transformImg += 1
            if self._settings.global_get(["webcam", "flipV"]):
                transformImg += 2
            if self._settings.global_get(["webcam", "rotate90"]):
                transformImg += 4
            self._socket.emit('hello', {
                'serialNumber': self._serial,
                'signature': base64.b64encode(crypto.sign(self._key, self._challenge, b'sha256')),
                'MAC': get_mac(),
                'localIP': get_ip(),
                'protocol': '2',
                'camUrl': camUrl,
                'transformImg': transformImg,
                'printerType': self._printer_type
            })
            self._challenge = None
        else:
            self._logger.debug('skip emit hello, serial: {}'.format(self._serial))

    #~~ capabilities -> polar: capabilitiesResponse