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mqtt.py
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## ------------------------------------------
## Generated by Transwarp
##
## THIS FILE IS AUTOMATICALLY GENERATED.
## DO NOT EDIT. ALL CHANGES WILL BE LOST.
## ------------------------------------------
import enum
from dataclasses import dataclass
import json
from .amtypes import *
from .megajank import mqtt_checksum_add, mqtt_checksum_remove, mqtt_aes_encrypt, mqtt_aes_decrypt
class MqttPktType(enum.IntEnum):
Single = 0xc0 # Whole message in a single packet. No further packets in this stream
MultiBegin = 0xc1 # Reallocate buffer memory, *then* append to message. Unless this is used
MultiAppend = 0xc2 # Append to existing message buffer.
MultiFinish = 0xc3 # Append data, then handle complete message.
@classmethod
def parse(cls, p):
return cls(struct.unpack("B", p[:1])[0]), p[1:]
def pack(self):
return struct.pack("B", self)
class MqttMsgType(enum.IntEnum):
ZZ_MQTT_CMD_EVENT_NOTIFY = 0x03e8 #
ZZ_MQTT_CMD_PRINT_SCHEDULE = 0x03e9 #
ZZ_MQTT_CMD_FIRMWARE_VERSION = 0x03ea # Returns firmware version string
ZZ_MQTT_CMD_NOZZLE_TEMP = 0x03eb # Set nozzle temperature in units of 1/100th deg C (i.e.31337 is 313.37C)
ZZ_MQTT_CMD_HOTBED_TEMP = 0x03ec # Set hotbed temperature in units of 1/100th deg C (i.e. 1337 is 13.37C)
ZZ_MQTT_CMD_FAN_SPEED = 0x03ed # Set fan speed
ZZ_MQTT_CMD_PRINT_SPEED = 0x03ee # ? Set print speed
ZZ_MQTT_CMD_AUTO_LEVELING = 0x03ef # (probably) Perform auto-levelling procedure
ZZ_MQTT_CMD_PRINT_CONTROL = 0x03f0 #
ZZ_MQTT_CMD_FILE_LIST_REQUEST = 0x03f1 # Request on-board file list (value == 1) or usb file list (value != 1)
ZZ_MQTT_CMD_GCODE_FILE_REQUEST = 0x03f2 #
ZZ_MQTT_CMD_ALLOW_FIRMWARE_UPDATE = 0x03f3 #
ZZ_MQTT_CMD_GCODE_FILE_DOWNLOAD = 0x03fc #
ZZ_MQTT_CMD_Z_AXIS_RECOUP = 0x03fd # ?
ZZ_MQTT_CMD_EXTRUSION_STEP = 0x03fe # (probably) run the extrusion stepper
ZZ_MQTT_CMD_ENTER_OR_QUIT_MATERIEL = 0x03ff # maybe related to filament change?
ZZ_MQTT_CMD_MOVE_STEP = 0x0400 #
ZZ_MQTT_CMD_MOVE_DIRECTION = 0x0401 #
ZZ_MQTT_CMD_MOVE_ZERO = 0x0402 # (probably) Move to home position
ZZ_MQTT_CMD_APP_QUERY_STATUS = 0x0403 #
ZZ_MQTT_CMD_ONLINE_NOTIFY = 0x0404 #
ZZ_MQTT_CMD_RECOVER_FACTORY = 0x0405 # Factory reset printer
ZZ_MQTT_CMD_BLE_ONOFF = 0x0407 # (probably) Enable/disable Bluetooth Low Energy ("ble") radio
ZZ_MQTT_CMD_DELETE_GCODE_FILE = 0x0408 # (probably) Delete specified gcode file
ZZ_MQTT_CMD_RESET_GCODE_PARAM = 0x0409 # ?
ZZ_MQTT_CMD_DEVICE_NAME_SET = 0x040a #
ZZ_MQTT_CMD_DEVICE_LOG_UPLOAD = 0x040b #
ZZ_MQTT_CMD_ONOFF_MODAL = 0x040c # ?
ZZ_MQTT_CMD_MOTOR_LOCK = 0x040d # ?
ZZ_MQTT_CMD_PREHEAT_CONFIG = 0x040e # ?
ZZ_MQTT_CMD_BREAK_POINT = 0x040f #
ZZ_MQTT_CMD_AI_CALIB = 0x0410 #
ZZ_MQTT_CMD_VIDEO_ONOFF = 0x0411 # ?
ZZ_MQTT_CMD_ADVANCED_PARAMETERS = 0x0412 # ?
ZZ_MQTT_CMD_GCODE_COMMAND = 0x0413 # Run custom GCode command
ZZ_MQTT_CMD_PREVIEW_IMAGE_URL = 0x0414 #
ZZ_MQTT_CMD_SYSTEM_CHECK = 0x0419 # ?
ZZ_MQTT_CMD_AI_SWITCH = 0x041a # ?
ZZ_MQTT_CMD_AI_INFO_CHECK = 0x041b # ?
ZZ_MQTT_CMD_MODEL_LAYER = 0x041c # ?
ZZ_MQTT_CMD_MODEL_DL_PROCESS = 0x041d # ?
ZZ_MQTT_CMD_PRINT_MAX_SPEED = 0x041f # ?
ZZ_MQTT_CMD_ALEXA_MSG = 0x0bb8 #
@classmethod
def parse(cls, p):
return cls(struct.unpack("B", p[:1])[0]), p[1:]
def pack(self):
return struct.pack("B", self)
@dataclass
class _MqttMsg:
signature : bytes = field(repr=False, kw_only=True, default=b'MA') # Signature: 'MA'
size : u16le # length of packet, including header and checksum (minimum 65).
m3 : u8 # Magic constant: 5
m4 : u8 # Magic constant: 1
m5 : u8 # Magic constant: 2 (M5) or 1 (M5C)
m6 : u8 # Magic constant: 5
m7 : u8 # Magic constant: 'F'
packet_type: MqttPktType # Packet type
packet_num : u16le # maybe for fragmented messages?set to 1 for unfragmented messages.
time : u32le # `gettimeofday()` in whole seconds
device_guid: bytes # device guid, as hex string
padding : bytes # padding bytes, unknown usage
data : bytes # payload data
@classmethod
def parse(cls, p):
signature, p = Magic.parse(p, 2, b'MA')
size, p = u16le.parse(p)
m3, p = u8.parse(p)
m4, p = u8.parse(p)
m5, p = u8.parse(p)
m6, p = u8.parse(p)
m7, p = u8.parse(p)
packet_type, p = MqttPktType.parse(p)
packet_num, p = u16le.parse(p)
if m5 == 2:
# AnkerMake M5
time, p = u32le.parse(p)
device_guid, p = String.parse(p, 37)
padding, p = Bytes.parse(p, 11)
elif m5 == 1:
# AnkerMake M5C
time = 0 # does not seem to be sent for M5C
device_guid = "none" # still present for M5C???
padding, p = Bytes.parse(p, 12) # first 6 bytes seem to change with each packet, rest is all zeros
else:
raise ValueError(f"Unsupported mqtt message format (expected 1 or 2, but found {m5})")
data, p = Tail.parse(p)
return cls(signature=signature, size=size, m3=m3, m4=m4, m5=m5, m6=m6, m7=m7, packet_type=packet_type, packet_num=packet_num, time=time, device_guid=device_guid, padding=padding, data=data), p
def pack(self):
p = Magic.pack(self.signature, 2, b'MA')
p += u16le.pack(self.size)
p += u8.pack(self.m3)
p += u8.pack(self.m4)
p += u8.pack(self.m5)
p += u8.pack(self.m6)
p += u8.pack(self.m7)
p += MqttPktType.pack(self.packet_type)
p += u16le.pack(self.packet_num)
if self.m5 == 2:
p += u32le.pack(self.time)
p += String.pack(self.device_guid, 37)
padding_len = 11
elif self.m5 == 1:
padding_len = 12
padding_missing = padding_len - len(self.padding)
p += Bytes.pack(self.padding + b"\x00" * padding_missing, padding_len)
p += Tail.pack(self.data)
return p
class MqttMsg(_MqttMsg):
@classmethod
def parse(cls, p, key):
p = mqtt_checksum_remove(p)
try:
body_len = {1:24, 2:64}[p[6]]
except KeyError:
raise ValueError("Unsupported mqtt message format " +
f"(expected 1 or 2, but found {p[6]})")
body, data = p[:body_len], mqtt_aes_decrypt(p[body_len:], key)
res = super().parse(body + data)
assert res[0].size == (len(p) + 1)
return res
def pack(self, key):
data = mqtt_aes_encrypt(self.data, key)
try:
body_len = {1:24, 2:64}[self.m5]
except KeyError:
raise ValueError("Unsupported mqtt message format " +
f"(expected 1 or 2, but found {self.m5})")
self.size = body_len + len(data) + 1
body = super().pack()[:body_len]
final = mqtt_checksum_add(body + data)
return final
def getjson(self):
return json.loads(self.data.decode())
def setjson(self, val):
self.data = json.dumps(val).encode()