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add players array to fefd_udp #13

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add players array to fefd_udp #13

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dfcb960
add players array to fefd_udp
phit Mar 15, 2017
c4f7b38
add timeout if server takes too long to respond
phit Aug 3, 2017
cd060f4
Always close socket after timeout
phit Mar 24, 2023
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24 changes: 18 additions & 6 deletions mcping.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,11 @@

const net = require('net');
const dgram = require('dgram');
const process = require('process');

const STARTED = 0;
const SENT_CHALLENGE_REQUEST = 1;
const SENT_STATUS_REQUEST = 2;
const DONE = 3;

// FE01FA ping compatible with 1.4.4, 1.5.2, 1.6.4(*), 1.7.10, 1.8.9, 1.9
// (*) MC|PingHost is required for 1.6.4, or it'll take ~2 seconds to get a reply
Expand Down Expand Up @@ -33,14 +37,11 @@ function ping_fe(options, cb) {
function ping_fefd_udp(options, cb) {
const host = options.host;
const port = options.port;
const timeout = options.timeout || 2000;
const udp = dgram.createSocket('udp4');

//console.log('udp ping');

const STARTED = 0;
const SENT_CHALLENGE_REQUEST = 1;
const SENT_STATUS_REQUEST = 2;
const DONE = 3;
let state = 0;

udp.on('error', (err) => {
Expand Down Expand Up @@ -104,7 +105,11 @@ function ping_fefd_udp(options, cb) {
result.maxPlayers = parseInt(array[22]);
result.port = parseInt(array[24]);
result.host = array[26];
// TODO: online players comes last, parse it
var players = [];
for(var i=30;i<array.length-2;i++){
players.push(array[i]);
}
result.players = players;
//console.log('result',result);
state = DONE;
cb(null, result, 'fefd_udp');
Expand All @@ -123,6 +128,13 @@ function ping_fefd_udp(options, cb) {
});

udp.bind();

setTimeout(function(){
if (state !== DONE){
cb('timeout', null, 'fefd_udp');
}
udp.close();
}, timeout);
}

function _ping_buffer(options, cb, buffer, type) {
Expand Down