bedrock server list ping (python)

bedrock.py

from dataclasses import dataclass
import socket
import random

@dataclass
class Response:
	motd: str
	protocol_version: str
	version_name: str
	online_players: int
	total_players: int
	server_id: str
	motd_description: str
	game_mode: str
	game_mode_num: int
	port_ipv4: int
	port_ipv6: int

class Bedrock:
	def __init__(self) -> None:
		self.client = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

	def ping(self, ip: str, port: int, timeout: int = 3):
		self.client.settimeout(timeout)
		# packet id: unconnected ping
		packet_type = 0x01

		# 8-bit timestamp, doesn't really matter
		timestamp = [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]

		# magic bytes
		magic = [0x00, 0xff, 0xff, 0x00, 0xfe, 0xfe, 0xfe, 0xfe,
				 0xfd, 0xfd, 0xfd, 0xfd, 0x12, 0x34, 0x56, 0x78]

		# guid (64-bit unique random number)
		guid = random.getrandbits(64).to_bytes(8)

		buf = bytes([packet_type, *timestamp, *magic, *guid])

		address = (ip, port)

		self.client.sendto(buf, address)

		while True:
			data, ip = self.client.recvfrom(4096)
			if ip == address:
				if data[0] != 28: # packet id: unconnected pong
					print('wrong packet')
					continue

				# the packet id takes up one bit
				# the time takes up 8 bits
				# the server guid takes up 8 bits
				# the magic bytes take 16 bits
				# the server id takes 2 bits

				offset = 1 + 8 + 8 + 16 + 2
				mc_data = str(data[offset:]).split(';')

				res = Response(
					mc_data[1],
					mc_data[2],
					mc_data[3],
					int(mc_data[4]),
					int(mc_data[5]),
					mc_data[6],
					mc_data[7],
					mc_data[8],
					int(mc_data[9]),
					int(mc_data[10]),
					int(mc_data[11]))

				return res

bd = Bedrock()

# Lifeboat
res = bd.ping('51.81.203.94', 19132)

print(res)