chore: bump version to 1.6.1

docs: update type definitions

README.md

@@ -1,6 +1,6 @@
 # mineping
 
-`mineping` is a Javasript library thar provides Minecraft server ping protocol implementation. It can be used to collect information about the server, such as MODT, current online, server icon (java edition only) and etc.
+This JavaScript library provides an implementation of the Minecraft server ping protocol. **It allows you to gather information about a Minecraft server**, such as the MOTD, current online players, server icon (Java Edition only), and more.
 
 Mirror on my [<img src="https://git.zeldon.ru/assets/img/logo.svg" align="center" width="20" height="20"/> Git](https://git.zeldon.ru/zeldon/mineping)
 
@@ -10,6 +10,8 @@ Mirror on my [<img src="https://git.zeldon.ru/assets/img/logo.svg" align="center
 
 ## Install
 
+To install `mineping`, simply run the following command:
+
 ```
 npm i @minescope/mineping
 ```
@@ -17,6 +19,7 @@ npm i @minescope/mineping
 ## Loading and configuration the module
 
 ### ES Modules (ESM)
+If you are using ES Modules, you can import the library like this:
 
 ```js
 import { pingJava, pingBedrock } from '@minescope/mineping';
@@ -59,5 +62,7 @@ console.log(data);
 
 ## Acknowledgements
 
+Special thanks to the following projects:
+
 - [mcping](https://github.com/Scetch/mcping) crate for Rust
 - [mcping-js](https://github.com/Cryptkeeper/mcping-js) library for quering Minecraft Java Edition servers

example/cli.js

@@ -1,9 +1,91 @@
-import { pingBedrock, pingJava } from '../index.js';
+#!/usr/bin/env node
 
-const args = getArgs();
+/**
+ * Usage examples:
+ * - Java (with custom timeout): node cli.js -j --host="mc.hypixel.net" --timeout 1000
+ * - Bedrock: node cli.js -b --host="play.timecrack.net"
+ */
 
-if (args.help || args.h || Object.keys(args).length === 0) {
+import { pingBedrock, pingJava } from "../index.js";
-    console.log(`node cli.js [..]
+
+const DEFAULT_TIMEOUT = 5000;
+const JAVA_DEFAULT_PORT = 25565;
+const BEDROCK_DEFAULT_PORT = 19132;
+
+try {
+	const args = parseArgs(process.argv.slice(2));
+
+	if (shouldShowHelp(args)) {
+		printHelp();
+		process.exit(0);
+	}
+
+	validateArgs(args);
+
+	const port = Number(args.port) || getDefaultPort(args);
+	const timeout = Number(args.timeout) || DEFAULT_TIMEOUT;
+
+	if (args.j) {
+		await pingJavaServer(args.host, port, timeout);
+	} else if (args.b) {
+		await pingBedrockServer(args.host, port, timeout);
+	}
+} catch (err) {
+	console.error(`ERROR: ${err.message}`);
+	process.exit(1);
+}
+
+function parseArgs(rawArgs) {
+	const args = {};
+
+	for (let i = 0; i < rawArgs.length; i++) {
+		const arg = rawArgs[i];
+
+		if (arg.startsWith("--")) {
+			// Handle --key=value and --key value formats
+			const [key, value] = arg.slice(2).split("=");
+			args[key] = value ?? rawArgs[++i] ?? true;
+		} else if (arg.startsWith("-")) {
+			// Handle short flags (-j, -b, -h)
+			const flags = arg.slice(1).split("");
+			flags.forEach((flag) => {
+				args[flag] = true;
+			});
+		}
+	}
+
+	return args;
+}
+
+function validateArgs(args) {
+	if (args.j && args.b) {
+		printInterestingFacts();
+		process.exit(0);
+	}
+
+	if (!args.host) {
+		throw new Error("The host argument not found! Use -h or --help.");
+	}
+
+	if (!args.j && !args.b) {
+		throw new Error("Must specify either -j or -b flag. Use -h or --help.");
+	}
+
+	if (args.port && (isNaN(args.port) || args.port < 1 || args.port > 65535)) {
+		throw new Error("Port must be a number between 1 and 65535");
+	}
+
+	if (args.timeout && (isNaN(args.timeout) || args.timeout < 0)) {
+		throw new Error("Timeout must be a positive number");
+	}
+}
+
+function shouldShowHelp(args) {
+	return args.help || args.h || Object.keys(args).length === 0;
+}
+
+function printHelp() {
+	console.log(`node cli.js [..]
     A simple to use, efficient, and full-featured Minecraft server info parser!
     
     USAGE:
@@ -11,65 +93,48 @@ if (args.help || args.h || Object.keys(args).length === 0) {
         
     OPTIONS:
         -j  Use for Minecraft Java Edition
-        -b Use for Minecraft Bedrock Edition
+        -b  Use for Minecraft Bedrock Edition
-        P.S. Don't use them at the same time!`);
+        -h, --help  Show this help message
-
+        
-    process.exit(1);
+        --host     The server address (required)
+        --port     The server port (default: ${JAVA_DEFAULT_PORT} for Java, ${BEDROCK_DEFAULT_PORT} for Bedrock)
+        --timeout  The socket timeout in milliseconds (default: ${DEFAULT_TIMEOUT})
+        
+        P.S. Don't use -j and -b at the same time!`);
 }
 
-if (!args.host) {
+function printInterestingFacts() {
-    console.error('ERROR: The host argument not found! Use -h or --help.');
+	console.log(`Some interesting facts about MOTDs on bedrock:
-    process.exit(1);
-}
-
-// easter egg <3
-if (args.j && args.b) {
-    console.log(`Some interesting facts about MOTDs on bedrock:
     - so far they seem to exclusively use legacy color codes
     - the random style has a special impl for periods, they turn into animated
     colons that warp up and down rapidly
     - motd_2 is ignored? client displays "motd_1 - v{version}", where the
     appended version text is considered part of motd_1 for color code processing
     - motd_2 seems to mainly be used to return the server software in use (e.g. PocketMine-MP)`);
-    process.exit(0);
 }
 
-if (args.j) {
+function getDefaultPort(args) {
-    const data = await pingJava(args.host, {
+	return args.j ? JAVA_DEFAULT_PORT : BEDROCK_DEFAULT_PORT;
-        port: args.port || 25565,
-        timeout: args.timeout || 500
-    });
-
-    console.log(`host: ${args.host}\nprotocol: ${data.version.protocol}\nonline: ${data.players.online}`);
-} else if (args.b) {
-    const data = await pingBedrock(args.host, {
-        port: args.port || 19132,
-        timeout: args.timeout || 500
-    });
-
-    console.log(`host: ${args.host}\nprotocol: ${data.version.protocol}\nonline: ${data.players.online}`);
-} else {
-    console.error('ERROR: Unsupported flag passed. Use -h or --help.');
 }
 
-// parsing command line arguments
+async function pingJavaServer(host, port, timeout) {
-function getArgs() {
+	const data = await pingJava(host, { port, timeout });
-    const args = {};
+	console.log(`Host: ${host}
-    process.argv.slice(2).forEach(arg => {
+Version: ${data.version?.name} (protocol: ${data.version?.protocol})
-        // long arg
+Players: ${data.players?.online}/${data.players?.max}
-        if (arg.slice(0, 2) === '--') {
+Description: ${
-            const longArg = arg.split('=');
+		typeof data.description === "string"
-            const longArgFlag = longArg[0].slice(2, longArg[0].length);
+			? data.description
-            const longArgValue = longArg.length > 1 ? longArg[1] : true;
+			: data.description?.text
-            args[longArgFlag] = longArgValue;
+	}`);
-            // flags
+}
-        } else if (arg[0] === '-') {
-            const flags = arg.slice(1, arg.length).split('');
-            flags.forEach(flag => {
-                args[flag] = true;
-            });
-        }
-    });
 
-    return args;
+async function pingBedrockServer(host, port, timeout) {
-}
+	const data = await pingBedrock(host, { port, timeout });
+	console.log(`Host: ${host}
+Edition: ${data.edition}
+Version: ${data.version.minecraftVersion} (protocol: ${data.version.protocolVersion})
+Players: ${data.players.online}/${data.players.max}
+Name: ${data.name}
+Gamemode: ${data.gameMode}`);
+}

example/parallel.js

@@ -1,10 +1,20 @@
 import { pingBedrock } from '../index.js';
 
-const [thehive, oasys, frizmine, breadix] = await Promise.allSettled([
+const hosts = [
-    pingBedrock('geo.hivebedrock.network'),
+    'play.timecrack.net',
-    pingBedrock('oasys-pe.com'),
+    'geo.hivebedrock.network',
-    pingBedrock('frizmine.ru'),
+    'oasys-pe.com',
-    pingBedrock('play.breadixpe.ru')
+    'play.galaxite.net',
-]);
+];
 
-console.dir({ thehive, oasys, frizmine, breadix }, { depth: 3 });
+const pingPromises = hosts.map(host => pingBedrock(host));
+const results = await Promise.allSettled(pingPromises);
+
+for (let result of results) {
+    if (result.status === 'rejected') {
+        console.error(result.reason);
+        break;
+    }
+
+    console.log(result.value);
+}

example/single.js

@@ -0,0 +1,5 @@
+import { pingBedrock } from "../index.js";
+
+const host = "mc.nevertime.su";
+const ping = await pingBedrock(host);
+console.log(ping);

lib/bedrock.js

@@ -1,124 +1,85 @@
 /**
  * Implementation of the RakNet ping/pong protocol.
- * @see https://wiki.vg/Raknet_Protocol#Unconnected_Ping
+ * @see https://minecraft.wiki/w/Minecraft_Wiki:Projects/wiki.vg_merge/Raknet_Protocol
- *
- * Data types:
- * @see https://wiki.vg/Raknet_Protocol#Data_types
  */
 
-'use strict';
+"use strict";
 
-import dgram from 'dgram';
+import dgram from "node:dgram";
+import crypto from "node:crypto";
 
+const MAGIC = "00ffff00fefefefefdfdfdfd12345678";
 const START_TIME = new Date().getTime();
+const UNCONNECTED_PONG = 0x1c;
 
 /**
- * Creates a buffer with the specified length.
+ * Creates an Unconnected Ping packet.
- * @param {number} length - The length of the buffer.
+ * @param {number} pingId
- * @returns {Buffer} - The created buffer.
+ * @returns {Buffer}
+ * @see {@link https://minecraft.wiki/w/Minecraft_Wiki:Projects/wiki.vg_merge/Raknet_Protocol#Unconnected_Ping}
  */
-const createBuffer = (length) => {
+const createUnconnectedPingFrame = (timestamp) => {
-    const buffer = Buffer.alloc(length);
+	const buffer = Buffer.alloc(33);
-    buffer[0] = 0x01;
+	buffer.writeUInt8(0x01, 0); // Packet ID
-    return buffer;
+	buffer.writeBigInt64LE(BigInt(timestamp), 1); // Timestamp
+	Buffer.from(MAGIC, "hex").copy(buffer, 9); // OFFLINE_MESSAGE_DATA_ID (Magic)
+	Buffer.from(crypto.randomBytes(8)).copy(buffer, 25); // Client GUID
+	return buffer;
 };
 
 /**
- * Writes a BigInt value to the buffer at the specified offset using big-endian byte order.
+ * Extract Modt from Unconnected Pong Packet and convert to an object
- * @param {Buffer} buffer - The buffer to write to.
+ * @param {Buffer} unconnectedPongPacket
- * @param {number} value - The BigInt value to write.
+ * @returns {Object}
- * @param {number} offset - The offset in the buffer to write the value.
+ * @throws {Error} If packet is malformed or invalid
+ * @see {@link https://minecraft.wiki/w/Minecraft_Wiki:Projects/wiki.vg_merge/Raknet_Protocol#Unconnected_Pong}
  */
-const writeBigInt64BE = (buffer, value, offset) => {
+const extractModt = (unconnectedPongPacket) => {
-    buffer.writeBigInt64BE(BigInt(value), offset);
+	if (
-};
+		!Buffer.isBuffer(unconnectedPongPacket) ||
+		unconnectedPongPacket.length < 35
+	) {
+		throw new Error("Invalid pong packet");
+	}
 
-/**
+	const offset = 33;
- * Copies the specified hex value to the buffer at the specified offset.
+	const length = unconnectedPongPacket.readUInt16BE(offset);
- * @param {Buffer} buffer - The buffer to copy to.
- * @param {string} hex - The hex value to copy.
- * @param {number} offset - The offset in the buffer to copy the value.
- */
-const copyHexToBuffer = (buffer, hex, offset) => {
-    Buffer.from(hex, 'hex').copy(buffer, offset);
-};
 
-/**
+	// Check for buffer bounds
- * Reads a BigInt value from the buffer at the specified offset using big-endian byte order.
+	if (offset + 2 + length > unconnectedPongPacket.length) {
- * @param {Buffer} buffer - The buffer to read from.
+		throw new Error("Malformed pong packet");
- * @param {number} offset - The offset in the buffer to read the value.
+	}
- * @returns {BigInt} - The read BigInt value.
- */
-const readBigInt64BE = (buffer, offset) => {
-    return buffer.readBigInt64BE(offset);
-};
 
-/**
+	let modt = unconnectedPongPacket.toString(
- * Reads a string from the buffer at the specified offset.
+		"utf-8",
- * @param {Buffer} buffer - The buffer to read from.
+		offset + 2,
- * @param {number} offset - The offset in the buffer to read the string.
+		offset + 2 + length
- * @returns {string} - The read string.
+	);
- */
-const readStringFromBuffer = (buffer, offset) => {
-    const length = buffer.readUInt16BE(offset);
-    return buffer.toString('utf8', offset + 2, offset + 2 + length);
-};
 
-/**
+	const components = modt.split(";");
- * Parses the advertise string into an object with properties.
- * @param {string} advertiseStr - The advertise string to parse.
- * @returns {Object} - The parsed object with properties.
- */
-const parseAdvertiseString = (advertiseStr) => {
-    const parts = advertiseStr.split(';');
-    return {
-        gameId: parts[0],
-        description: parts[1],
-        protocolVersion: parts[2],
-        gameVersion: parts[3],
-        currentPlayers: parts[4],
-        maxPlayers: parts[5],
-        name: parts[7],
-        mode: parts[8]
-    };
-};
 
-/**
+	// Validate required components
- * Creates an Unconnected Ping buffer.
+	if (components.length < 9) {
- * @param {number} pingId - The ping ID.
+		throw new Error("Invalid MODT format");
- * @returns {Buffer} - The Unconnected Ping buffer.
+	}
- * @see {@link https://wiki.vg/Raknet_Protocol#Unconnected_Ping}
- */
-const UNCONNECTED_PING = (pingId) => {
-    const buffer = createBuffer(35);
-    writeBigInt64BE(buffer, pingId, 1);
-    copyHexToBuffer(buffer, '00ffff00fefefefefdfdfdfd12345678', 9);
-    writeBigInt64BE(buffer, 0, 25);
-    return buffer;
-};
 
-/**
+	const parsedComponents = {
- * Decodes an Unconnected Pong buffer and returns the parsed data.
+		edition: components[0],
- * @param {Buffer} buffer - The Unconnected Pong buffer.
+		name: components[1],
- * @returns {Object} - The parsed Unconnected Pong data.
+		version: {
- * @see {@link https://wiki.vg/Raknet_Protocol#Unconnected_Pong}
+			protocolVersion: Number(components[2]),
- */
+			minecraftVersion: components[3],
-const UNCONNECTED_PONG = (buffer) => {
+		},
-    const pingId = readBigInt64BE(buffer, 1);
+		players: {
-    const serverId = readBigInt64BE(buffer, 9);
+			online: Number(components[4]),
-    let offset = 25;
+			max: Number(components[5]),
-    let advertiseStr;
+		},
+		serverId: components[6],
+		mapName: components[7],
+		gameMode: components[8],
+	};
 
-    try {
+	return parsedComponents;
-        advertiseStr = readStringFromBuffer(buffer, offset);
-    } catch (err) {
-        const length = parseInt(err.message.substr(err.message.indexOf(',') + 2, 3));
-        advertiseStr = buffer.toString('utf8', offset, offset + length);
-    }
-
-    const parsedAdvertiseStr = parseAdvertiseString(advertiseStr);
-
-    return { pingId, advertiseStr, serverId, offset, ...parsedAdvertiseStr };
 };
 
 /**
@@ -129,86 +90,88 @@ const UNCONNECTED_PONG = (buffer) => {
  * @param {number} [timeout=5000] - The timeout duration in milliseconds.
  */
 const ping = (host, port = 19132, cb, timeout = 5000) => {
-    const socket = dgram.createSocket('udp4');
+	const socket = dgram.createSocket("udp4");
 
-    const timeoutTask = setTimeout(() => {
+	// Set manual timeout interval.
-        socket.emit('error', new Error('Socket timeout'));
+	// This ensures the connection will NEVER hang regardless of internal state
-    }, timeout);
+	const timeoutTask = setTimeout(() => {
+		socket.emit("error", new Error("Socket timeout"));
+	}, timeout);
 
-    const closeSocket = () => {
+	const closeSocket = () => {
-        socket.close(); clearTimeout(timeoutTask);
+		socket.close();
-    };
+		clearTimeout(timeoutTask);
+	};
 
-    // Generic error handler
+	// Generic error handler
-    // This protects multiple error callbacks given the complex socket state
+	// This protects multiple error callbacks given the complex socket state
-    // This is mostly dangerous since it can swallow errors
+	// This is mostly dangerous since it can swallow errors
-    let didFireError = false;
+	let didFireError = false;
 
-    const handleError = (err) => {
+	/**
-        closeSocket();
+	 * Handle any error that occurs during the ping process.
+	 * @param {Error} err The error that occurred.
+	 */
+	const handleError = (err) => {
+		closeSocket();
 
-        if (!didFireError) {
+		if (!didFireError) {
-            didFireError = true;
+			didFireError = true;
-            cb(null, err);
+			cb(null, err);
-        }
+		}
-    };
+	};
 
-    try {
+	try {
-        const ping = UNCONNECTED_PING(new Date().getTime() - START_TIME);
+		const ping = createUnconnectedPingFrame(new Date().getTime() - START_TIME);
-        socket.send(ping, 0, ping.length, port, host);
+		socket.send(ping, 0, ping.length, port, host);
-    } catch (err) {
+	} catch (err) {
-        handleError(err);
+		handleError(err);
-    }
+	}
 
-    socket.on('message', (msg) => {
+	socket.on("message", (pongPacket) => {
-        const id = msg[0];
+		if (!Buffer.isBuffer(pongPacket) || pongPacket.length === 0) {
+			handleError(new Error("Invalid packet received"));
+			return;
+		}
 
-        switch (id) {
+		const id = pongPacket[0];
-            case 0x1c: {
+		if (id !== UNCONNECTED_PONG) {
-                const pong = UNCONNECTED_PONG(msg);
+			handleError(new Error(`Unexpected packet ID: 0x${id.toString(16)}`));
-                const clientData = {
+			return;
-                    version: {
+		}
-                        name: pong.name,
-                        protocol: pong.protocolVersion
-                    },
-                    players: {
-                        max: pong.maxPlayers,
-                        online: pong.currentPlayers
-                    },
-                    description: pong.description.replace(/\xA7[0-9A-FK-OR]/ig, ''),
-                    gamemode: pong.mode
-                };
 
-                closeSocket();
+		try {
-                cb(clientData, null);
+			const modtObject = extractModt(pongPacket);
-                break;
+			closeSocket();
-            }
+			cb(modtObject, null);
+		} catch (err) {
+			handleError(err);
+		}
+	});
 
-            default: {
+	socket.on("error", handleError);
-                handleError(new Error('Received unexpected packet'));
-                break;
-            }
-        }
-    });
-
-    socket.on('error', (err) => handleError(err));
 };
 
 /**
  * Asynchronously ping Minecraft Bedrock server.
  * The optional `options` argument can be an object with a `ping` (default is `19132`) or/and `timeout` (default is `5000`) property.
  * @param {string} host The Bedrock server address.
- * @param {import('../types/lib/bedrock.js').PingOptions} options The configuration for pinging Minecraft Bedrock server.
+ * @param {import('../types/index.js').PingOptions} options The configuration for pinging Minecraft Bedrock server.
- * @returns {Promise<import('../types/lib/bedrock.js').BedrockPingResponse>}
+ * @returns {Promise<import('../types/index.js').BedrockPingResponse>}
  */
 export const pingBedrock = (host, options = {}) => {
-    if (!host) throw new Error('Host argument is not provided');
+	if (!host) throw new Error("Host argument is not provided");
 
-    const { port = 19132, timeout = 5000 } = options;
+	const { port = 19132, timeout = 5000 } = options;
 
-    return new Promise((resolve, reject) => {
+	return new Promise((resolve, reject) => {
-        ping(host, port, (res, err) => {
+		ping(
-            err ? reject(err) : resolve(res);
+			host,
-        }, timeout);
+			port,
-    });
+			(res, err) => {
+				err ? reject(err) : resolve(res);
+			},
+			timeout
+		);
+	});
 };

lib/java.js

@@ -1,127 +1,149 @@
 /**
  * Implementation of the Java Minecraft ping protocol.
- * @see https://wiki.vg/Server_List_Ping
+ * @see https://minecraft.wiki/w/Minecraft_Wiki:Projects/wiki.vg_merge/Server_List_Ping
  */
 
-'use strict';
+"use strict";
 
-import net from 'net';
+import net from "node:net";
-import varint from './varint.js';
+import varint from "./varint.js";
 
-const PROTOCOL_VERSION = 0;
+/**
+ * Ping a Minecraft Java server.
+ * @param {string} host The host of the Java server.
+ * @param {string} virtualHost The host sent in handshake.
+ * @param {number} [port=25565] The port of the Java server.
+ * @param {function} cb The callback function to handle the ping response.
+ * @param {number} [timeout=5000] The timeout duration in milliseconds.
+ * @param {number} [protocolVersion=-1] The protocol version of the Java client.
+ */
+function ping(host, virtualHost, port = 25565, cb, timeout = 5000, protocolVersion = -1) {
+	const socket = net.createConnection({ host, port });
 
-function ping(host, port = 25565, cb, timeout = 5000) {
+	// Set manual timeout interval.
-    const socket = net.createConnection(({ host, port }));
+	// This ensures the connection will NEVER hang regardless of internal state
+	const timeoutTask = setTimeout(() => {
+		socket.emit("error", new Error("Socket timeout"));
+	}, timeout);
 
-    // Set manual timeout interval.
+	const closeSocket = () => {
-    // This ensures the connection will NEVER hang regardless of internal state
+		socket.destroy();
-    const timeoutTask = setTimeout(() => {
+		clearTimeout(timeoutTask);
-        socket.emit('error', new Error('Socket timeout'));
+	};
-    }, timeout);
 
-    const closeSocket = () => {
+	// Generic error handler
-        socket.destroy();
+	// This protects multiple error callbacks given the complex socket state
-        clearTimeout(timeoutTask);
+	// This is mostly dangerous since it can swallow errors
-    };
+	let didFireError = false;
 
-    // Generic error handler
+	/**
-    // This protects multiple error callbacks given the complex socket state
+	 * Handle any error that occurs during the ping process.
-    // This is mostly dangerous since it can swallow errors
+	 * @param {Error} err The error that occurred.
-    let didFireError = false;
+	 */
+	const handleError = (err) => {
+		closeSocket();
 
-    const handleError = (err) => {
+		if (!didFireError) {
-        closeSocket();
+			didFireError = true;
+			cb(null, err);
+		}
+	};
 
-        if (!didFireError) {
+	// #setNoDelay instantly flushes data during read/writes
-            didFireError = true;
+	// This prevents the runtime from delaying the write at all
-            cb(null, err);
+	socket.setNoDelay(true);
-        }
-    };
 
-    // #setNoDelay instantly flushes data during read/writes
+	socket.on("connect", () => {
-    // This prevents the runtime from delaying the write at all
+		const handshake = varint.concat([
-    socket.setNoDelay(true);
+			varint.encodeInt(0),
+			varint.encodeInt(protocolVersion),
+			varint.encodeInt(virtualHost.length),
+			varint.encodeString(virtualHost),
+			varint.encodeUShort(port),
+			varint.encodeInt(1),
+		]);
 
-    socket.on('connect', () => {
+		socket.write(handshake);
-        const handshake = varint.concat([
-            varint.encodeInt(0),
-            varint.encodeInt(PROTOCOL_VERSION),
-            varint.encodeInt(host.length),
-            varint.encodeString(host),
-            varint.encodeUShort(port),
-            varint.encodeInt(1)
-        ]);
 
-        socket.write(handshake);
+		const request = varint.concat([varint.encodeInt(0)]);
 
-        const request = varint.concat([
+		socket.write(request);
-            varint.encodeInt(0)
+	});
-        ]);
 
-        socket.write(request);
+	let incomingBuffer = Buffer.alloc(0);
-    });
 
-    let incomingBuffer = Buffer.alloc(0);
+	socket.on("data", (data) => {
+		incomingBuffer = Buffer.concat([incomingBuffer, data]);
 
-    socket.on('data', (data) => {
+		// Wait until incomingBuffer is at least 5 bytes long to ensure it has captured the first VarInt value
-        incomingBuffer = Buffer.concat([incomingBuffer, data]);
+		// This value is used to determine the full read length of the response
-        // Wait until incomingBuffer is at least 5 bytes long to ensure it has captured the first VarInt value
+		// "VarInts are never longer than 5 bytes"
-        // This value is used to determine the full read length of the response
+		// https://minecraft.wiki/w/Minecraft_Wiki:Projects/wiki.vg_merge/Data_types#VarInt_and_VarLong
-        // "VarInts are never longer than 5 bytes"
+		if (incomingBuffer.length < 5) {
-        // https://wiki.vg/Data_types#VarInt_and_VarLong
+			return;
-        if (incomingBuffer.length < 5) {
+		}
-            return;
-        }
 
-        let offset = 0;
+		let offset = 0;
-        const packetLength = varint.decodeInt(incomingBuffer, offset);
+		const packetLength = varint.decodeInt(incomingBuffer, offset);
 
-        // Ensure incomingBuffer contains the full response
+		// Ensure incomingBuffer contains the full response
-        if (incomingBuffer.length - offset < packetLength) {
+		if (incomingBuffer.length - offset < packetLength) {
-            return;
+			return;
-        }
+		}
 
-        const packetId = varint.decodeInt(incomingBuffer, varint.decodeLength(packetLength));
+		const packetId = varint.decodeInt(
+			incomingBuffer,
+			varint.decodeLength(packetLength)
+		);
 
-        if (packetId === 0) {
+		if (packetId === 0) {
-            const data = incomingBuffer.slice(varint.decodeLength(packetLength) + varint.decodeLength(packetId));
+			const data = incomingBuffer.subarray(
-            const responseLength = varint.decodeInt(data, 0);
+				varint.decodeLength(packetLength) + varint.decodeLength(packetId)
-            const response = data.slice(varint.decodeLength(responseLength), varint.decodeLength(responseLength) + responseLength);
+			);
+			const responseLength = varint.decodeInt(data, 0);
+			const response = data.subarray(
+				varint.decodeLength(responseLength),
+				varint.decodeLength(responseLength) + responseLength
+			);
 
-            try {
+			try {
-                const message = JSON.parse(response);
+				const message = JSON.parse(response);
-                cb(null, message);
 
-                // Close the socket and clear the timeout task
+				closeSocket();
-                closeSocket();
+				cb(message, null);
-            } catch (err) {
+			} catch (err) {
-                handleError(err);
+				handleError(err);
-            }
+			}
-        } else {
+		} else {
-            handleError(new Error('Received unexpected packet'));
+			handleError(new Error("Received unexpected packet"));
-        }
+		}
-    });
+	});
 
-    socket.on('error', handleError);
+	socket.on("error", handleError);
 }
 
 /**
  * Asynchronously ping Minecraft Java server.
- * 
+ * The optional `options` argument can be an object with a `port` (default is `25565`) or/and `timeout` (default is `5000`) or/and `protocolVersion` (default is `-1`) property.
- * The optional `options` argument can be an object with a `ping` (default is `25565`) or/and `timeout` (default is `5000`) property.
- * 
  * @param {string} host The Java server address.
  * @param {import('../types/index.js').PingOptions} options The configuration for pinging Minecraft Java server.
- * @returns {Promise<import('../types/lib/java.js').JavaPingResponse>}
+ * @returns {Promise<import('../types/index.js').JavaPingResponse>}
  */
 export function pingJava(host, options = {}) {
-    if (!host) throw new Error('Host argument is not provided');
+	if (!host) throw new Error("Host argument is not provided");
 
-    const { port = 25565, timeout = 5000 } = options;
+	const { port = 25565, timeout = 5000, protocolVersion = -1, virtualHost = null } = options;
 
-    return new Promise((resolve, reject) => {
+	return new Promise((resolve, reject) => {
-        ping(host, port, (err, res) => {
+		ping(
-            err ? reject(err) : resolve(res);
+			host,
-        }, timeout);
+			virtualHost || host,
-    });
+			port,
-}
+			(res, err) => {
+				err ? reject(err) : resolve(res);
+			},
+			timeout,
+			protocolVersion
+		);
+	});
+}

lib/varint.js

@@ -1,90 +1,123 @@
-// https://wiki.vg/Data_types
+// https://minecraft.wiki/w/Minecraft_Wiki:Projects/wiki.vg_merge/Protocol#Data_types
 
+/**
+ * A utility object for encoding and decoding varints.
+ */
 const varint = {
-    encodeInt: (val) => {
+	/**
-        // "constInts are never longer than 5 bytes"
+	 * Encodes an integer value into a varint byte buffer.
-        // https://wiki.vg/Data_types#constInt_and_constLong
+	 * @param {number} val - The integer value to encode.
-        const buf = Buffer.alloc(5);
+	 * @returns {Buffer}
-        let written = 0;
+	 */
+	encodeInt: (val) => {
+		// "VarInts are never longer than 5 bytes"
+		// https://minecraft.wiki/w/Minecraft_Wiki:Projects/wiki.vg_merge/Data_types#VarInt_and_VarLong
+		const buf = Buffer.alloc(5);
+		let written = 0;
 
-        while (true) {
+		while (true) {
-            if ((val & 0xFFFFFF80) === 0) {
+			const byte = val & 0x7f;
-                buf.writeUInt8(val, written++);
+			val >>>= 7;
-                break;
-            } else {
-                buf.writeUInt8(val & 0x7F | 0x80, written++);
-                val >>>= 7;
-            }
-        }
 
-        return buf.slice(0, written);
+			if (val === 0) {
-    },
+				buf.writeUInt8(byte, written++);
+				break;
+			}
 
-    encodeString: (val) => {
+			buf.writeUInt8(byte | 0x80, written++);
-        return Buffer.from(val, 'utf-8');
+		}
-    },
 
-    encodeUShort: (val) => {
+		return buf.subarray(0, written);
-        return Buffer.from([val >> 8, val & 0xFF]);
+	},
-    },
 
-    concat: (chunks) => {
+	/**
-        let length = 0;
+	 * Encodes a string value into a UTF-8 byte buffer.
+	 * @param {string} val - The string value to encode.
+	 * @returns {Buffer}
+	 */
+	encodeString: (val) => {
+		return Buffer.from(val, "utf-8");
+	},
 
-        for (const chunk of chunks) {
+	/**
-            length += chunk.length;
+	 * Encodes an unsigned short value into a byte buffer.
-        }
+	 * @param {number} val - The unsigned short value to encode.
+	 * @returns {Buffer}
+	 */
+	encodeUShort: (val) => {
+		return Buffer.from([val >> 8, val & 0xff]);
+	},
 
-        const buffer = [
+	/**
-            varint.encodeInt(length),
+	 * Concatenates multiple byte buffers into a single byte buffer.
-            ...chunks
+	 * @param {Buffer[]} chunks - An array of byte buffers to concatenate.
-        ];
+	 * @returns {Buffer}
+	 */
+	concat: (chunks) => {
+		let length = 0;
 
-        return Buffer.concat(buffer);
+		for (const chunk of chunks) {
-    },
+			length += chunk.length;
+		}
 
-    decodeInt: (buffer, offset) => {
+		const buffer = [varint.encodeInt(length), ...chunks];
-        let val = 0;
-        let count = 0;
 
-        while (true) {
+		return Buffer.concat(buffer);
-            const b = buffer.readUInt8(offset++);
+	},
 
-            val |= (b & 0x7F) << count++ * 7;
+	/**
+	 * Decodes a varint integer value from a buffer.
+	 * @param {Buffer} buffer - The byte buffer to decode from.
+	 * @param {number} offset - The offset in the buffer to start decoding from.
+	 * @returns {number}
+	 */
+	decodeInt: (buffer, offset) => {
+		// Fast path for single-byte varints
+		const firstByte = buffer.readUInt8(offset);
+		if (firstByte < 0x80) {
+			return firstByte;
+		}
 
-            if ((b & 0x80) != 128) {
+		let val = firstByte & 0x7f;
-                break;
+		let position = 7;
-            }
-        }
 
-        return val;
+		while (position < 32) {
-    },
+			const byte = buffer.readUInt8(++offset);
+			val |= (byte & 0x7f) << position;
 
-    // The number of bytes that the last .decodeInt() call had to use to decode.
+			if ((byte & 0x80) === 0) {
-    decodeLength: (val) => {
+				return val;
-        const N1 = Math.pow(2, 7);
+			}
-        const N2 = Math.pow(2, 14);
-        const N3 = Math.pow(2, 21);
-        const N4 = Math.pow(2, 28);
-        const N5 = Math.pow(2, 35);
-        const N6 = Math.pow(2, 42);
-        const N7 = Math.pow(2, 49);
-        const N8 = Math.pow(2, 56);
-        const N9 = Math.pow(2, 63);
 
-        return (
+			position += 7;
-            val < N1 ? 1
+		}
-                : val < N2 ? 2
+
-                    : val < N3 ? 3
+		throw new Error("VarInt is too big");
-                        : val < N4 ? 4
+	},
-                            : val < N5 ? 5
+
-                                : val < N6 ? 6
+	/**
-                                    : val < N7 ? 7
+	 * Calculates how many bytes are needed to encode a number as a VarInt
-                                        : val < N8 ? 8
+	 * VarInts use a variable number of bytes to efficiently encode integers
-                                            : val < N9 ? 9
+	 * Each byte uses 7 bits for the value and 1 bit to indicate if more bytes follow
-                                                : 10
+	 * VarInts are never longer than 5 bytes
-        );
+	 *
-    }
+	 * @param {number} val - The number to calculate the VarInt length for
+	 * @returns {1|2|3|4|5} The number of bytes needed to encode the value
+	 */
+	decodeLength: (val) => {
+		// Using bit shifts to calculate power of 2 thresholds
+		// 1 << 7  = 2^7  = 128      - Numbers below this fit in 1 byte
+		// 1 << 14 = 2^14 = 16,384   - Numbers below this fit in 2 bytes
+		// 1 << 21 = 2^21 = 2,097,152 - Numbers below this fit in 3 bytes
+		// 1 << 28 = 2^28 = 268,435,456 - Numbers below this fit in 4 bytes
+		// Any larger number needs 5 bytes (maximum VarInt size)
+
+		if (val < 1 << 7) return 1;
+		if (val < 1 << 14) return 2;
+		if (val < 1 << 21) return 3;
+		if (val < 1 << 28) return 4;
+		return 5;
+	},
 };
 
 export default varint;

package.json

@@ -1,22 +1,22 @@
 {
-  "name": "@minescope/mineping",
+	"name": "@minescope/mineping",
-  "version": "1.1.0",
+	"version": "1.6.1",
-  "description": "Ping both Minecraft Bedrock and Java servers.",
+	"description": "Ping both Minecraft Bedrock and Java servers.",
-  "main": "index.js",
+	"main": "index.js",
-  "types": "types/index.d.ts",
+	"types": "types/index.d.ts",
-  "keywords": [],
+	"keywords": [],
-  "author": {
+	"author": {
-    "name": "Timofey (xzeldon)",
+		"name": "Timofey (xzeldon)",
-    "email": "contact@zeldon.ru",
+		"email": "contact@zeldon.ru",
-    "url": "https://zeldon.ru"
+		"url": "https://zeldon.ru"
-  },
+	},
-  "repository": {
+	"repository": {
-    "type": "git",
+		"type": "git",
-    "url": "git://github.com/minescope/mineping.git"
+		"url": "git://github.com/minescope/mineping.git"
-  },
+	},
-  "type": "module",
+	"type": "module",
-  "engines": {
+	"engines": {
-    "node": ">=14"
+		"node": ">=14"
-  },
+	},
-  "license": "MIT"
+	"license": "MIT"
-}
+}

types/index.d.ts

@@ -1,2 +1,2 @@
-export { pingJava } from "./lib/java.js";
+export * from "./lib/java.js";
-export { pingBedrock } from "./lib/bedrock.js";
+export * from "./lib/bedrock.js";

types/lib/bedrock.d.ts

@@ -1,49 +1,61 @@
 /**
- * @param port The server port.
+ * @param port The server port (1-65535).
- * @param timeout The read/write socket timeout.
+ * @param timeout The read/write socket timeout in milliseconds.
  */
-export type PingOptions = {
+export type BedrockPingOptions = {
-    port: number,
+	port?: number & { _brand: "Port" }; // 1-65535
-    timeout: number;
+	timeout?: number & { _brand: "Timeout" }; // > 0
 };
 
 export type BedrockPingResponse = {
-    version: {
+	edition: string;
-        name: string;
+	name: string;
-        protocol: string;
+	version: {
-    };
+		protocolVersion: number;
-    players: {
+		minecraftVersion: string;
-        max: string;
+	};
-        online: string;
+	players: {
-    };
+		online: number;
-    description: string;
+		max: number;
-    gamemode: string;
+	};
+	serverId: string;
+	mapName: string;
+	gameMode: string;
 };
 
 /**
  * Asynchronously ping Minecraft Bedrock server.
- * 
+ *
- * The optional `options` argument can be an object with a `ping` (default is `19132`) or/and `timeout` (default is `5000`) property.
- * 
  * @param host The Bedrock server address.
- * 
+ * @param options The configuration for pinging Minecraft Bedrock server.
+ *
  * ```js
  * import { pingBedrock } from '@minescope/mineping';
- * 
+ *
  * const data = await pingBedrock('mco.mineplex.com');
  * console.log(data);
  * ```
- * 
+ *
  * The resulting output will resemble:
  * ```console
  * {
- *   version: { name: 'Mineplex', protocol: '475' },
+ *   edition: "MCPE",
- *   players: { max: '5207', online: '5206' },
+ *   name: "Mineplex",
- *   description: ' New Costumes',
+ *   version: {
- *   gamemode: 'Survival'
+ *     protocolVersion: 475,
+ *     minecraftVersion: "1.18.0"
+ *   },
+ *   players: {
+ *     online: 5206,
+ *     max: 5207
+ *   },
+ *   serverId: "12345678",
+ *   mapName: "Lobby",
+ *   gameMode: "Survival"
  * }
  * ```
- * @see [source](https://github.com/minescope/mineping/blob/24a48802300f988d3ae520edbeb4f3e12820dcc9/lib/java.js#L117)
  */
-export function pingBedrock(host: string, options?: PingOptions): Promise<BedrockPingResponse>;
+export function pingBedrock(
-
+	host: string,
+	options?: BedrockPingOptions
+): Promise<BedrockPingResponse>;

types/lib/java.d.ts

@@ -1,43 +1,53 @@
-import { PingOptions } from "./bedrock";
+/**
+ * @param port The server port.
+ * @param timeout The read/write socket timeout.
+ * @param protocolVersion The protocol version.
+ */
+export type JavaPingOptions = {
+	port?: number | undefined;
+	timeout?: number | undefined;
+	protocolVersion?: number | undefined;
+	virtualHost?: string | undefined;
+};
 
 /**
  * JSON format chat component used for description field.
- * @see https://wiki.vg/Chat
+ * @see https://minecraft.wiki/w/Minecraft_Wiki:Projects/wiki.vg_merge/Chat
  */
 export type ChatComponent = {
-    text: string;
+	text: string;
-    bold?: boolean;
+	bold?: boolean;
-    italic?: boolean;
+	italic?: boolean;
-    underlined?: boolean;
+	underlined?: boolean;
-    strikethrough?: boolean;
+	strikethrough?: boolean;
-    obfuscated?: boolean;
+	obfuscated?: boolean;
-    color?: string;
+	color?: string;
-    extra?: ChatComponent[];
+	extra?: ChatComponent[];
 };
 
 export type SampleProp = {
-    name: string,
+	name: string;
-    id: string;
+	id: string;
 };
 
 /**
  * `JSON Response` field of Response packet.
- * @see https://wiki.vg/Server_List_Ping#Response
+ * @see https://minecraft.wiki/w/Minecraft_Wiki:Projects/wiki.vg_merge/Server_List_Ping#Status_Response
  */
 export type JavaPingResponse = {
-    version: {
+	version: {
-        name: string;
+		name: string;
-        protocol: number;
+		protocol: number;
-    };
+	};
-    players: {
+	players: {
-        max: number;
+		max: number;
-        online: number;
+		online: number;
-        sample?: SampleProp[];
+		sample?: SampleProp[];
-    };
+	};
-    description: string | ChatComponent;
+	description: string | ChatComponent;
-    favicon?: string;
+	favicon?: string;
-    enforcesSecureChat?: boolean;
+	enforcesSecureChat?: boolean;
-    previewsChat?: boolean;
+	previewsChat?: boolean;
 };
 
 /**
@@ -65,7 +75,9 @@ export type JavaPingResponse = {
  * favicon: 'data:image/png;base64,iVBORw0KGg...
  }
  * ```
- * @see [source](https://github.com/minescope/mineping/blob/8c84925ef7f5c420a7ef52740cba027491e82934/lib/bedrock.js#L158)
+ * @see [source](https://github.com/minescope/mineping/blob/915edbec9c9ad811459458600af3531ec0836911/lib/java.js#L117)
  */
-export function pingJava(host: string, options?: PingOptions): Promise<JavaPingResponse>;
+export function pingJava(
-
+	host: string,
+	options?: JavaPingOptions
+): Promise<JavaPingResponse>;

types/lib/varint.d.ts

@@ -1,10 +1,44 @@
 export default varint;
 declare namespace varint {
-    function encodeInt(val: number): Buffer;
+	/**
-    function encodeString(val: string): Buffer;
+	 * Encodes an integer value into a varint byte buffer.
-    function encodeUShort(val: number): Buffer;
+	 * @param val - The integer value to encode.
-    function concat(chunks: Buffer[]): Buffer;
+	 */
-    function decodeInt(buffer: Buffer, offset: number): number;
+	function encodeInt(val: number): Buffer;
-    function decodeString(val: Buffer, offset?: number): string;
+
-    function decodeLength(val: number): 5 | 7 | 8 | 1 | 2 | 3 | 4 | 6 | 9 | 10;
+	/**
+	 * Encodes a string value into a UTF-8 byte buffer.
+	 * @param val - The string value to encode.
+	 */
+	function encodeString(val: string): Buffer;
+
+	/**
+	 * Encodes an unsigned short value into a byte buffer.
+	 * @param val - The unsigned short value to encode.
+	 */
+	function encodeUShort(val: number): Buffer;
+
+	/**
+	 * Concatenates multiple byte buffers into a single byte buffer.
+	 * @param chunks - An array of byte buffers to concatenate.
+	 */
+	function concat(chunks: Buffer[]): Buffer;
+
+	/**
+	 * Decodes a varint integer value from a buffer.
+	 * @param buffer - The byte buffer to decode from.
+	 * @param offset - The offset in the buffer to start decoding from.
+	 */
+	function decodeInt(buffer: Buffer, offset: number): number;
+
+	/**
+	 * Calculates how many bytes are needed to encode a number as a VarInt.
+	 * VarInts use a variable number of bytes to efficiently encode integers.
+	 * Each byte uses 7 bits for the value and 1 bit to indicate if more bytes follow.
+	 * VarInts are never longer than 5 bytes.
+	 *
+	 * @param val - The number to calculate the VarInt length for.
+	 * @returns The number of bytes needed to encode the value (1-5).
+	 */
+	function decodeLength(val: number): 1 | 2 | 3 | 4 | 5;
 }