b2e9223b10
Fixed deprecation of Buffer constructor in node v10. Set flag to print the stack trace of node warnings in the renderer.
65 lines
1.9 KiB
JavaScript
65 lines
1.9 KiB
JavaScript
const net = require('net')
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/**
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* Retrieves the status of a minecraft server.
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*
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* @param {string} address The server address.
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* @param {number} port Optional. The port of the server. Defaults to 25565.
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* @returns {Promise.<Object>} A promise which resolves to an object containing
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* status information.
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*/
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exports.getStatus = function(address, port = 25565){
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if(port == null || port == ''){
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port = 25565
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}
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if(typeof port === 'string'){
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port = parseInt(port)
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}
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return new Promise((resolve, reject) => {
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const socket = net.connect(port, address, () => {
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let buff = Buffer.from([0xFE, 0x01])
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socket.write(buff)
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})
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socket.setTimeout(2500, () => {
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socket.end()
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reject({
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code: 'ETIMEDOUT',
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errno: 'ETIMEDOUT',
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address,
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port
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})
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})
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socket.on('data', (data) => {
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if(data != null && data != ''){
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let server_info = data.toString().split('\x00\x00\x00')
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const NUM_FIELDS = 6
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if(server_info != null && server_info.length >= NUM_FIELDS){
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resolve({
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online: true,
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version: server_info[2].replace(/\u0000/g, ''),
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motd: server_info[3].replace(/\u0000/g, ''),
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onlinePlayers: server_info[4].replace(/\u0000/g, ''),
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maxPlayers: server_info[5].replace(/\u0000/g,'')
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})
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} else {
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resolve({
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online: false
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})
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}
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}
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socket.end()
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})
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socket.on('error', (err) => {
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socket.destroy()
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reject(err)
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// ENOTFOUND = Unable to resolve.
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// ECONNREFUSED = Unable to connect to port.
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})
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})
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} |