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This commit is contained in:
mmorrison 2017-08-09 05:32:09 -05:00
parent 0dd25bfcda
commit 3674d384d0
39 changed files with 2414 additions and 2414 deletions
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130
protocols/minecraftping.js
View file

@ -1,99 +1,99 @@
const varint = require('varint'),
async = require('async');
async = require('async');
function varIntBuffer(num) {
return Buffer.from(varint.encode(num));
return Buffer.from(varint.encode(num));
}
function buildPacket(id,data) {
if(!data) data = Buffer.from([]);
if(!data) data = Buffer.from([]);
const idBuffer = varIntBuffer(id);
return Buffer.concat([
varIntBuffer(data.length+idBuffer.length),
idBuffer,
data
]);
return Buffer.concat([
varIntBuffer(data.length+idBuffer.length),
idBuffer,
data
]);
}
class MinecraftPing extends require('./core') {
run(state) {
let receivedData;
run(state) {
let receivedData;
async.series([
(c) => {
// build and send handshake and status TCP packet
async.series([
(c) => {
// build and send handshake and status TCP packet
const portBuf = Buffer.alloc(2);
portBuf.writeUInt16BE(this.options.port_query,0);
portBuf.writeUInt16BE(this.options.port_query,0);
const addressBuf = Buffer.from(this.options.address,'utf8');
const bufs = [
varIntBuffer(4),
varIntBuffer(addressBuf.length),
addressBuf,
portBuf,
varIntBuffer(1)
];
varIntBuffer(4),
varIntBuffer(addressBuf.length),
addressBuf,
portBuf,
varIntBuffer(1)
];
const outBuffer = Buffer.concat([
buildPacket(0,Buffer.concat(bufs)),
buildPacket(0)
]);
buildPacket(0,Buffer.concat(bufs)),
buildPacket(0)
]);
this.tcpSend(outBuffer, (data) => {
if(data.length < 10) return false;
this.tcpSend(outBuffer, (data) => {
if(data.length < 10) return false;
const expected = varint.decode(data);
data = data.slice(varint.decode.bytes);
if(data.length < expected) return false;
receivedData = data;
c();
return true;
});
},
(c) => {
// parse response
data = data.slice(varint.decode.bytes);
if(data.length < expected) return false;
receivedData = data;
c();
return true;
});
},
(c) => {
// parse response
let data = receivedData;
const packetId = varint.decode(data);
if(this.debug) console.log("Packet ID: "+packetId);
data = data.slice(varint.decode.bytes);
if(this.debug) console.log("Packet ID: "+packetId);
data = data.slice(varint.decode.bytes);
const strLen = varint.decode(data);
if(this.debug) console.log("String Length: "+strLen);
data = data.slice(varint.decode.bytes);
if(this.debug) console.log("String Length: "+strLen);
data = data.slice(varint.decode.bytes);
const str = data.toString('utf8');
if(this.debug) {
console.log(str);
}
if(this.debug) {
console.log(str);
}
let json;
try {
json = JSON.parse(str);
delete json.favicon;
} catch(e) {
return this.fatal('Invalid JSON');
}
try {
json = JSON.parse(str);
delete json.favicon;
} catch(e) {
return this.fatal('Invalid JSON');
}
state.raw.version = json.version.name;
state.maxplayers = json.players.max;
state.raw.description = json.description.text;
if(json.players.sample) {
for(const player of json.players.sample) {
state.players.push({
id: player.id,
name: player.name
});
}
}
while(state.players.length < json.players.online) {
state.players.push({});
}
state.raw.version = json.version.name;
state.maxplayers = json.players.max;
state.raw.description = json.description.text;
if(json.players.sample) {
for(const player of json.players.sample) {
state.players.push({
id: player.id,
name: player.name
});
}
}
while(state.players.length < json.players.online) {
state.players.push({});
}
this.finish(state);
}
]);
}
this.finish(state);
}
]);
}
}
module.exports = MinecraftPing;