mirror of
https://github.com/gamedig/node-gamedig.git
synced 2024-09-07 03:21:29 +02:00
77 lines
2.7 KiB
JavaScript
77 lines
2.7 KiB
JavaScript
const Core = require('./core');
|
|
|
|
class MinecraftBedrock extends Core {
|
|
constructor() {
|
|
super();
|
|
this.byteorder = 'be';
|
|
}
|
|
|
|
async run(state) {
|
|
const bufs = [
|
|
Buffer.from([0x01]), // Message ID, ID_UNCONNECTED_PING
|
|
Buffer.from('1122334455667788', 'hex'), // Nonce / timestamp
|
|
Buffer.from('00ffff00fefefefefdfdfdfd12345678', 'hex'), // Magic
|
|
Buffer.from('0000000000000000', 'hex') // Cliend GUID
|
|
];
|
|
|
|
return await this.udpSend(Buffer.concat(bufs), buffer => {
|
|
const reader = this.reader(buffer);
|
|
|
|
const messageId = reader.uint(1);
|
|
if (messageId !== 0x1c) {
|
|
this.logger.debug('Skipping packet, invalid message id');
|
|
return;
|
|
}
|
|
|
|
const nonce = reader.part(8).toString('hex'); // should match the nonce we sent
|
|
this.logger.debug('Nonce: ' + nonce);
|
|
if (nonce !== '1122334455667788') {
|
|
this.logger.debug('Skipping packet, invalid nonce');
|
|
return;
|
|
}
|
|
|
|
// These 8 bytes are identical to the serverId string we receive in decimal below
|
|
reader.skip(8);
|
|
|
|
const magic = reader.part(16).toString('hex');
|
|
this.logger.debug('Magic value: ' + magic);
|
|
if (magic !== '00ffff00fefefefefdfdfdfd12345678') {
|
|
this.logger.debug('Skipping packet, invalid magic');
|
|
return;
|
|
}
|
|
|
|
const statusLen = reader.uint(2);
|
|
if (reader.remaining() !== statusLen) {
|
|
throw new Error('Invalid status length: ' + reader.remaining() + ' vs ' + statusLen);
|
|
}
|
|
|
|
const statusStr = reader.rest().toString('utf8');
|
|
this.logger.debug('Raw status str: ' + statusStr);
|
|
|
|
const split = statusStr.split(';');
|
|
if (split.length < 6) {
|
|
throw new Error('Missing enough chunks in status str');
|
|
}
|
|
|
|
state.raw.edition = split.shift();
|
|
state.name = split.shift();
|
|
state.raw.protocolVersion = split.shift();
|
|
state.raw.mcVersion = split.shift();
|
|
state.players = parseInt(split.shift());
|
|
state.maxplayers = parseInt(split.shift());
|
|
if (split.length) state.raw.serverId = split.shift();
|
|
if (split.length) state.map = split.shift();
|
|
if (split.length) state.raw.gameMode = split.shift();
|
|
if (split.length) state.raw.nintendoOnly = !!parseInt(split.shift());
|
|
if (split.length) state.raw.ipv4Port = split.shift();
|
|
if (split.length) state.raw.ipv6Port = split.shift();
|
|
|
|
return true;
|
|
});
|
|
|
|
}
|
|
|
|
}
|
|
|
|
module.exports = MinecraftBedrock;
|