26 Commits

Author SHA1 Message Date
0b5c5e2938 chore: bump version to 1.6.0 2025-02-07 08:02:26 +03:00
73a2fffe8b feat: add virtualHost option (#6) 2025-02-07 08:01:12 +03:00
9469564736 docs: update references to wiki.vg
wiki.vg has been shut down and is in the process of being merged into minecraft.wiki
2024-12-28 22:47:11 +03:00
838ffc497a chore: bump version to 1.5.0 2024-10-09 22:00:11 +03:00
502029869a style: use "node:" prefix for imports 2024-10-09 21:59:16 +03:00
e3e7e293ed fix: use vanilla ping format 2024-10-09 21:57:37 +03:00
88ad92e59d chore: add example for single server ping 2024-10-09 21:55:01 +03:00
009f542c55 chore: bump version to 1.4.1 2024-03-31 02:02:08 +03:00
0b0bed4e71 docs: some clarifications in createUnconnectedPingFrame 2024-03-31 02:01:46 +03:00
fa4c34d896 chore: bump version to 1.4.0 2024-03-31 01:56:43 +03:00
296294ca96 refactor!: changes in bedrock protocol code
BREAKING CHANGE: new bedrock ping response format
2024-03-31 01:56:03 +03:00
9d25aaf4ea chore: bump version to 1.3.0 2024-03-30 16:42:44 +03:00
c735604c38 fix: #5 add gameVersion field for Bedrock
Add gameVersion field in BedrockPingResponse

Closes: #5
2024-03-30 16:41:42 +03:00
afdaa9eb3e chore(package.json): bump version to 1.2.2 2023-12-12 00:44:41 +03:00
435899309f Merge pull request #4 from sya-ri/fix-types/optional
fix(types): Change options to optional
2023-12-12 00:44:20 +03:00
13e6b8c6ff fix(types): Change options to optional 2023-12-09 22:38:37 +09:00
d7256eabe7 chore(package.json): bump version to 1.2.1 2023-12-09 12:58:53 +03:00
afa2c3025f fix(bedrock.js): resolve UNCONNECTED_PING formation issue
- Simplify UNCONNECTED_PING function
- Address an issue where certain servers, particularly those based on Pocketmine, were unresponsive to Unconnected Ping requests
2023-12-09 12:57:43 +03:00
6c297d0b8c chore(package.json): bump version to 1.2.0 2023-12-08 15:22:53 +03:00
283e9b32c6 Merge pull request #3 from inotflying/patch-1
feat(pingJava): The ability to set a specific protocol version in the parameters. According to https://wiki.vg/Server_List_Ping#:~:text=0x00-,Protocol%20Version,-VarInt
2023-12-08 15:22:07 +03:00
354fa212a6 fix(javaPing): default protocolVersion value 2023-12-08 16:16:30 +04:00
d9bf4cfb3f feat(pingJava): add protocolVersion
feat(types): `PingOptions` for Java

fix(types): type names

fix(types): type names
2023-12-08 16:04:35 +04:00
9dace3748b docs(README.md): improve clarity and grammar in the project description 2023-10-22 22:49:53 +03:00
0aa73655b1 fix(parallel.js): add break statement to stop iterating over results if a promise is rejected 2023-10-22 21:38:34 +03:00
78ca03b004 chore(package.json): update version from 1.1.0 to 1.1.1 2023-10-22 21:32:33 +03:00
910184bf5f refactoring and comments
fix(cli.js): refactor help and error handling logic for better readability and maintainability
feat(cli.js): add support for custom port and timeout options
fix(parallel.js): update list of hosts to ping
fix(bedrock.js): add comments and improve error handling in ping function
fix(java.js): add comments and improve error handling in ping function
fix(varint.js): add comments to functions and improve readability
fix(index.d.ts): export all functions from java.js and bedrock.js
fix(lib/bedrock.d.ts): update source link
fix(lib/java.d.ts): update source link
2023-10-22 21:32:00 +03:00
11 changed files with 472 additions and 406 deletions

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@ -1,6 +1,6 @@
# mineping # 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) 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 ## Install
To install `mineping`, simply run the following command:
``` ```
npm i @minescope/mineping npm i @minescope/mineping
``` ```
@ -17,6 +19,7 @@ npm i @minescope/mineping
## Loading and configuration the module ## Loading and configuration the module
### ES Modules (ESM) ### ES Modules (ESM)
If you are using ES Modules, you can import the library like this:
```js ```js
import { pingJava, pingBedrock } from '@minescope/mineping'; import { pingJava, pingBedrock } from '@minescope/mineping';
@ -59,5 +62,7 @@ console.log(data);
## Acknowledgements ## Acknowledgements
Special thanks to the following projects:
- [mcping](https://github.com/Scetch/mcping) crate for Rust - [mcping](https://github.com/Scetch/mcping) crate for Rust
- [mcping-js](https://github.com/Cryptkeeper/mcping-js) library for quering Minecraft Java Edition servers - [mcping-js](https://github.com/Cryptkeeper/mcping-js) library for quering Minecraft Java Edition servers

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@ -1,19 +1,15 @@
/**
* 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"
*/
import { pingBedrock, pingJava } from '../index.js'; import { pingBedrock, pingJava } from '../index.js';
const args = getArgs(); const args = getArgs();
if (args.help || args.h || Object.keys(args).length === 0) { if (shouldShowHelp(args)) {
console.log(`node cli.js [..] printHelp();
A simple to use, efficient, and full-featured Minecraft server info parser!
USAGE:
node cli.js [OPTIONS] --host <HOST> --port <PORT> --timeout <TIMEOUT>
OPTIONS:
-j Use for Minecraft Java Edition
-b Use for Minecraft Bedrock Edition
P.S. Don't use them at the same time!`);
process.exit(1); process.exit(1);
} }
@ -24,6 +20,42 @@ if (!args.host) {
// easter egg <3 // easter egg <3
if (args.j && args.b) { if (args.j && args.b) {
printInterestingFacts();
process.exit(0);
}
const port = args.port || getDefaultPort(args);
const timeout = args.timeout || 500;
if (args.j) {
await pingJavaServer(args.host, port, timeout)
.catch(err => console.error(`ERROR: ${err.message}`));
} else if (args.b) {
await pingBedrockServer(args.host, port, timeout)
.catch(err => console.error(`ERROR: ${err.message}`));
} else {
console.error('ERROR: Unsupported flag passed. Use -h or --help.');
}
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:
node cli.js [OPTIONS] --host <HOST> --port <PORT> --timeout <TIMEOUT>
OPTIONS:
-j Use for Minecraft Java Edition
-b Use for Minecraft Bedrock Edition
P.S. Don't use them at the same time!`);
}
function printInterestingFacts() {
console.log(`Some interesting facts about MOTDs on bedrock: console.log(`Some interesting facts about MOTDs on bedrock:
- so far they seem to exclusively use legacy color codes - so far they seem to exclusively use legacy color codes
- the random style has a special impl for periods, they turn into animated - the random style has a special impl for periods, they turn into animated
@ -31,25 +63,20 @@ if (args.j && args.b) {
- motd_2 is ignored? client displays "motd_1 - v{version}", where the - 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 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)`); - 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 ? 25565 : 19132;
port: args.port || 25565, }
timeout: args.timeout || 500
});
console.log(`host: ${args.host}\nprotocol: ${data.version.protocol}\nonline: ${data.players.online}`); async function pingJavaServer(host, port, timeout) {
} else if (args.b) { const data = await pingJava(host, { port, timeout });
const data = await pingBedrock(args.host, { console.log(`host: ${host}\nprotocol: ${data.version?.protocol}\nonline: ${data.players?.online}`);
port: args.port || 19132, }
timeout: args.timeout || 500
});
console.log(`host: ${args.host}\nprotocol: ${data.version.protocol}\nonline: ${data.players.online}`); async function pingBedrockServer(host, port, timeout) {
} else { const data = await pingBedrock(host, { port, timeout });
console.error('ERROR: Unsupported flag passed. Use -h or --help.'); console.log(`host: ${host}\nprotocol: ${data.version.protocol}\nonline: ${data.players.online}`);
} }
// parsing command line arguments // parsing command line arguments

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@ -1,10 +1,20 @@
import { pingBedrock } from '../index.js'; 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);
}

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

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@ -1,124 +1,65 @@
/** /**
* Implementation of the RakNet ping/pong protocol. * 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 START_TIME = new Date().getTime();
/** /**
* 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. * @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); // Skip everything to Modt
}; const offset = 33;
const length = unconnectedPongPacket.readUInt16BE(offset);
let modt = unconnectedPongPacket.toString(
"utf-8",
offset + 2,
offset + 2 + length
);
/** const components = modt.split(";");
* Copies the specified hex value to the buffer at the specified offset. const parsedComponents = {
* @param {Buffer} buffer - The buffer to copy to. edition: components[0],
* @param {string} hex - The hex value to copy. name: components[1],
* @param {number} offset - The offset in the buffer to copy the value. version: {
*/ protocolVersion: Number(components[2]),
const copyHexToBuffer = (buffer, hex, offset) => { minecraftVersion: components[3],
Buffer.from(hex, 'hex').copy(buffer, offset); },
}; players: {
online: Number(components[4]),
max: Number(components[5]),
},
serverId: components[6],
mapName: components[7],
gameMode: components[8],
};
/** return parsedComponents;
* Reads a BigInt value from the buffer at the specified offset using big-endian byte order.
* @param {Buffer} buffer - The buffer to read from.
* @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);
};
/**
* Reads a string from the buffer at the specified offset.
* @param {Buffer} buffer - The buffer to read from.
* @param {number} offset - The offset in the buffer to read the string.
* @returns {string} - The read string.
*/
const readStringFromBuffer = (buffer, offset) => {
const length = buffer.readUInt16BE(offset);
return buffer.toString('utf8', offset + 2, offset + 2 + length);
};
/**
* 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]
};
};
/**
* Creates an Unconnected Ping buffer.
* @param {number} pingId - The ping ID.
* @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;
};
/**
* Decodes an Unconnected Pong buffer and returns the parsed data.
* @param {Buffer} buffer - The Unconnected Pong buffer.
* @returns {Object} - The parsed Unconnected Pong data.
* @see {@link https://wiki.vg/Raknet_Protocol#Unconnected_Pong}
*/
const UNCONNECTED_PONG = (buffer) => {
const pingId = readBigInt64BE(buffer, 1);
const serverId = readBigInt64BE(buffer, 9);
let offset = 25;
let advertiseStr;
try {
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 +70,85 @@ const UNCONNECTED_PONG = (buffer) => {
* @param {number} [timeout=5000] - The timeout duration in milliseconds. * @param {number} [timeout=5000] - The timeout duration in milliseconds.
*/ */
const ping = (host, port = 19132, cb, timeout = 5000) => { 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]; const id = pongPacket[0];
switch (id) { switch (id) {
case 0x1c: { case 0x1c: {
const pong = UNCONNECTED_PONG(msg); const modtObject = extractModt(pongPacket);
const clientData = { closeSocket();
version: { cb(modtObject, null);
name: pong.name, break;
protocol: pong.protocolVersion }
},
players: {
max: pong.maxPlayers,
online: pong.currentPlayers
},
description: pong.description.replace(/\xA7[0-9A-FK-OR]/ig, ''),
gamemode: pong.mode
};
closeSocket(); default: {
cb(clientData, null); handleError(new Error("Received unexpected packet"));
break; break;
} }
}
});
default: { socket.on("error", handleError);
handleError(new Error('Received unexpected packet'));
break;
}
}
});
socket.on('error', (err) => handleError(err));
}; };
/** /**
* Asynchronously ping Minecraft Bedrock server. * 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. * 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 {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 = {}) => { 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
);
});
}; };

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@ -1,127 +1,149 @@
/** /**
* Implementation of the Java Minecraft ping protocol. * 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. * 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 {string} host The Java server address.
* @param {import('../types/index.js').PingOptions} options The configuration for pinging Minecraft Java server. * @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 = {}) { 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
);
});
}

View File

@ -1,90 +1,131 @@
// 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 = { 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.slice(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 byte 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) => {
let val = 0;
let count = 0;
if ((b & 0x80) != 128) { while (true) {
break; const byte = buffer.readUInt8(offset++);
}
}
return val; val |= (byte & 0x7f) << (count++ * 7);
},
// The number of bytes that the last .decodeInt() call had to use to decode. if ((byte & 0x80) !== 0x80) {
decodeLength: (val) => { break;
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 ( return val;
val < N1 ? 1 },
: val < N2 ? 2
: val < N3 ? 3 /**
: val < N4 ? 4 * Calculates the number of bytes required to decode a varint integer value.
: val < N5 ? 5 * @param {number} val - The varint integer value.
: val < N6 ? 6 * @returns {5 | 7 | 8 | 1 | 2 | 3 | 4 | 6 | 9 | 10}
: val < N7 ? 7 */
: val < N8 ? 8 decodeLength: (val) => {
: val < N9 ? 9 // Constants representing the powers of 2 used for comparison
: 10 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 the number of bytes required based on the value
return val < N1
? 1
: val < N2
? 2
: val < N3
? 3
: val < N4
? 4
: val < N5
? 5
: val < N6
? 6
: val < N7
? 7
: val < N8
? 8
: val < N9
? 9
: 10;
},
}; };
export default varint; export default varint;

View File

@ -1,6 +1,6 @@
{ {
"name": "@minescope/mineping", "name": "@minescope/mineping",
"version": "1.1.0", "version": "1.6.0",
"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",

4
types/index.d.ts vendored
View File

@ -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";

View File

@ -2,22 +2,25 @@
* @param port The server port. * @param port The server port.
* @param timeout The read/write socket timeout. * @param timeout The read/write socket timeout.
*/ */
export type PingOptions = { export type BedrockPingOptions = {
port: number, port?: number;
timeout: number; timeout?: number;
}; };
export type BedrockPingResponse = { export type BedrockPingResponse = {
edition: string;
name: string;
version: { version: {
name: string; protocolVersion: number;
protocol: string; minecraftVersion: string;
}; };
players: { players: {
max: string; online: number;
online: string; max: number;
}; };
description: string; serverId: string;
gamemode: string; mapName: string;
gameMode: string;
}; };
/** /**
@ -26,6 +29,7 @@ export type BedrockPingResponse = {
* The optional `options` argument can be an object with a `ping` (default is `19132`) or/and `timeout` (default is `5000`) property. * 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 host The Bedrock server address.
* @param options The configuration for pinging Minecraft Bedrock server.
* *
* ```js * ```js
* import { pingBedrock } from '@minescope/mineping'; * import { pingBedrock } from '@minescope/mineping';
@ -43,7 +47,7 @@ export type BedrockPingResponse = {
* gamemode: 'Survival' * gamemode: 'Survival'
* } * }
* ``` * ```
* @see [source](https://github.com/minescope/mineping/blob/24a48802300f988d3ae520edbeb4f3e12820dcc9/lib/java.js#L117) * @see [source](https://github.com/minescope/mineping/blob/915edbec9c9ad811459458600af3531ec0836911/lib/bedrock.js#L204)
*/ */
export function pingBedrock(host: string, options?: PingOptions): Promise<BedrockPingResponse>; export function pingBedrock(host: string, options?: BedrockPingOptions): Promise<BedrockPingResponse>;

70
types/lib/java.d.ts vendored
View File

@ -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. * 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 = { 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 = { export type SampleProp = {
name: string, name: string;
id: string; id: string;
}; };
/** /**
* `JSON Response` field of Response packet. * `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 = { 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... * 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>;