apns.py 文件源码

def _get_notification(self, token_hex, payload):
        """
        Takes a token as a hex string and a payload as a Python dict and sends
        the notification
        """
        token_bin = a2b_hex(token_hex)
        token_length_bin = APNs.packed_ushort_big_endian(len(token_bin))
        payload_json = payload.json()
        payload_length_bin = APNs.packed_ushort_big_endian(len(payload_json))

        zero_byte = '\0'
        if sys.version_info[0] != 2:
            zero_byte = bytes(zero_byte, 'utf-8')
        notification = (zero_byte + token_length_bin + token_bin
                        + payload_length_bin + payload_json)

        return notification