import Core from './core.js'; export default 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.setNum(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; }); } }