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https://github.com/DerTyp7/docker_minecraft_server_auto_starter.git
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Update code: Fix linting issues and optimize code
This commit is contained in:
Janis
163
app/socket_server.py
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163
app/socket_server.py
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import json
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import socket
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import uuid
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import logging
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from threading import Thread
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import utils as utils
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class SocketServer:
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def __init__(self, port: int, ip: str = "0.0.0.0", motd: dict = {"1": "§4Maintenance!", "2": "§aCheck example.com for more information!"},
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version_text: str = "§4Maintenance", kick_message: list = ["§bSorry", "", "§aThis server is offline!"],
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server_icon: str = "server_icon.png", samples: list = ["§bexample.com", "", "§4Maintenance"], show_hostname_if_available: bool = True,
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player_max: int = 0, player_online: int = 0, protocol: int = 2):
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self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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self.ip = ip
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self.port = port
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self.motd = motd
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self.version_text = version_text
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self.kick_message = kick_message
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self.samples = samples
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self.server_icon = server_icon
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self.show_hostname = show_hostname_if_available
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self.player_max = player_max
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self.player_online = player_online
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self.protocol = protocol
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def is_server_list_ping(self, request, service_name):
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if request[0] == 0xFE:
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logging.info(
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f'[RequestHandler:{self.port}] detected legacy ping request for {service_name}')
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self.send_response(self.client_address)
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elif b'\x01' in request:
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logging.info(
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f'[RequestHandler:{self.port}] detected ping request for {service_name}')
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self.send_response(self.client_address)
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else:
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logging.info(
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f'[RequestHandler:{self.port}] detected unknown request for {service_name}')
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self.send_response(self.client_address)
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def is_join_attempt(self, request, service_name, minecraft_server):
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if request[0] == 0x10 or request[0] == 0x15 or request[0] == 0x1b:
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if b'\x02' in request:
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logging.info(
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f'[RequestHandler:{self.port}] detected join/login request for {service_name}')
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if minecraft_server.is_starting() == True:
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logging.info(
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f'[RequestHandler:{self.port}] container {service_name} is already starting...')
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self.send_response(self.client_address)
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else:
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logging.info(
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f'[RequestHandler:{self.port}] starting container {service_name}')
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self.minecraft_server_handler.start_server(service_name)
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def on_new_client(self, client_socket, addr):
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data = client_socket.recv(1024)
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client_ip = addr[0]
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if self.is_server_list_ping(data):
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fqdn = socket.getfqdn(client_ip)
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if self.show_hostname and client_ip != fqdn:
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client_ip = fqdn + "/" + client_ip
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try:
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(length, i) = utils.read_varint(data, 0)
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(packetID, i) = utils.read_varint(data, i)
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if packetID == 0:
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(version, i) = utils.read_varint(data, i)
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(ip, i) = utils.read_utf(data, i)
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ip = ip.replace('\x00', '').replace("\r", "\\r").replace(
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"\t", "\\t").replace("\n", "\\n")
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is_using_fml = False
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if ip.endswith("FML"):
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is_using_fml = True
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ip = ip[:-3]
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(port, i) = utils.read_ushort(data, i)
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(state, i) = utils.read_varint(data, i)
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if state == 1:
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logging.info(("[%s:%s] Received client " + ("(using ForgeModLoader) " if is_using_fml else "") +
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"ping packet (%s:%s).") % (client_ip, addr[1], ip, port))
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motd = {}
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motd["version"] = {}
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motd["version"]["name"] = self.version_text
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motd["version"]["protocol"] = self.protocol
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motd["players"] = {}
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motd["players"]["max"] = self.player_max
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motd["players"]["online"] = self.player_online
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motd["players"]["sample"] = []
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for sample in ["§bexamplaaaaaaaae.com", "", "§4Maintaaaaaaaaaaaaaaenance"]:
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motd["players"]["sample"].append(
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{"name": sample, "id": str(uuid.uuid4())})
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motd["description"] = {"text": self.motd}
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if self.server_icon and len(self.server_icon) > 0:
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motd["favicon"] = self.server_icon
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self.write_response(client_socket, json.dumps(motd))
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elif state == 2:
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name = ""
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if len(data) != i:
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(some_int, i) = utils.read_varint(data, i)
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(some_int, i) = utils.read_varint(data, i)
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(name, i) = utils.read_utf(data, i)
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logging.info(
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("[%s:%s] " + (name + " t" if len(name) > 0 else "T") + "ries to connect to the server " +
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("(using ForgeModLoader) " if is_using_fml else "") + "(%s:%s).")
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% (client_ip, addr[1], ip, port))
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self.write_response(client_socket, json.dumps(
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{"text": "kicked"}))
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else:
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logging.info(
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"[%s:%d] Tried to request a login/ping with an unknown state: %d" % (client_ip, addr[1], state))
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elif packetID == 1:
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(long, i) = utils.read_long(data, i)
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response = bytearray()
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utils.write_varint(response, 9)
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utils.write_varint(response, 1)
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bytearray.append(long)
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client_socket.sendall(bytearray)
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logging.info(
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"[%s:%d] Responded with pong packet." % (client_ip, addr[1]))
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else:
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logging.warning("[%s:%d] Sent an unexpected packet: %d" % (
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client_ip, addr[1], packetID))
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except (TypeError, IndexError):
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logging.warning(
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"[%s:%s] Received invalid data (%s)" % (client_ip, addr[1], data))
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return
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def write_response(self, client_socket, response):
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response_array = bytearray()
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utils.write_varint(response_array, 0)
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utils.write_utf(response_array, response)
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length = bytearray()
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utils.write_varint(length, len(response_array))
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client_socket.sendall(length)
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client_socket.sendall(response_array)
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def start(self):
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self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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self.sock.bind((self.ip, self.port))
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self.sock.settimeout(5)
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self.sock.listen(30)
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logging.info("Server started on %s:%s! Waiting for incoming connections..." % (
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self.ip, self.port))
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while 1:
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try:
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(client, address) = self.sock.accept()
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except socket.timeout:
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continue # timeouts may occur but shouldn't worry uns server-side
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Thread(target=self.on_new_client, daemon=True,
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args=(client, address,)).start()
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def close(self):
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self.sock.close()
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