mirror of
https://github.com/gamedig/node-gamedig.git
synced 2024-09-07 03:21:29 +02:00
153 lines
5.4 KiB
JavaScript
153 lines
5.4 KiB
JavaScript
const Core = require('./core');
|
|
|
|
class Unreal2 extends Core {
|
|
constructor() {
|
|
super();
|
|
this.encoding = 'latin1';
|
|
}
|
|
async run(state) {
|
|
let extraInfoReader;
|
|
{
|
|
const b = await this.sendPacket(0, true);
|
|
const reader = this.reader(b);
|
|
state.raw.serverid = reader.uint(4);
|
|
state.raw.ip = this.readUnrealString(reader);
|
|
state.gamePort = reader.uint(4);
|
|
state.raw.queryport = reader.uint(4);
|
|
state.name = this.readUnrealString(reader, true);
|
|
state.map = this.readUnrealString(reader, true);
|
|
state.raw.gametype = this.readUnrealString(reader, true);
|
|
state.raw.numplayers = reader.uint(4);
|
|
state.maxplayers = reader.uint(4);
|
|
this.logger.debug(log => {
|
|
log("UNREAL2 EXTRA INFO", reader.buffer.slice(reader.i));
|
|
});
|
|
extraInfoReader = reader;
|
|
}
|
|
|
|
{
|
|
const b = await this.sendPacket(1,true);
|
|
const reader = this.reader(b);
|
|
state.raw.mutators = [];
|
|
state.raw.rules = {};
|
|
while(!reader.done()) {
|
|
const key = this.readUnrealString(reader,true);
|
|
const value = this.readUnrealString(reader,true);
|
|
this.logger.debug(key+'='+value);
|
|
if(key === 'Mutator' || key === 'mutator') {
|
|
state.raw.mutators.push(value);
|
|
} else if (key || value) {
|
|
if (state.raw.rules.hasOwnProperty(key)) {
|
|
state.raw.rules[key] += ',' + value;
|
|
} else {
|
|
state.raw.rules[key] = value;
|
|
}
|
|
}
|
|
}
|
|
if('GamePassword' in state.raw.rules)
|
|
state.password = state.raw.rules.GamePassword !== 'True';
|
|
}
|
|
|
|
if (state.raw.mutators.includes('KillingFloorMut')
|
|
|| state.raw.rules['Num trader weapons']
|
|
|| state.raw.rules['Server Version'] === '1065'
|
|
) {
|
|
// Killing Floor
|
|
state.raw.wavecurrent = extraInfoReader.uint(4);
|
|
state.raw.wavetotal = extraInfoReader.uint(4);
|
|
state.raw.ping = extraInfoReader.uint(4);
|
|
state.raw.flags = extraInfoReader.uint(4);
|
|
state.raw.skillLevel = this.readUnrealString(extraInfoReader, true);
|
|
} else {
|
|
state.raw.ping = extraInfoReader.uint(4);
|
|
// These fields were added in later revisions of unreal engine
|
|
if (extraInfoReader.remaining() >= 8) {
|
|
state.raw.flags = extraInfoReader.uint(4);
|
|
state.raw.skill = this.readUnrealString(extraInfoReader, true);
|
|
}
|
|
}
|
|
|
|
{
|
|
const b = await this.sendPacket(2,false);
|
|
const reader = this.reader(b);
|
|
|
|
state.raw.scoreboard = {};
|
|
while(!reader.done()) {
|
|
const player = {};
|
|
player.id = reader.uint(4);
|
|
player.name = this.readUnrealString(reader,true);
|
|
player.ping = reader.uint(4);
|
|
player.score = reader.int(4);
|
|
player.statsId = reader.uint(4);
|
|
this.logger.debug(player);
|
|
|
|
if (!player.id) {
|
|
state.raw.scoreboard[player.name] = player.score;
|
|
} else if (!player.ping) {
|
|
state.bots.push(player);
|
|
} else {
|
|
state.players.push(player);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
readUnrealString(reader, stripColor) {
|
|
let length = reader.uint(1), ucs2 = false;
|
|
if(length >= 0x80) {
|
|
// This is flagged as a UCS-2 String
|
|
length = (length&0x7f)*2;
|
|
ucs2 = true;
|
|
|
|
// For UCS-2 strings, some unreal 2 games randomly insert an extra 0x01 here,
|
|
// not included in the length. Skip it if present (hopefully this never happens legitimately)
|
|
const peek = reader.uint(1);
|
|
if (peek !== 1) reader.skip(-1);
|
|
|
|
this.debugLog(log => {
|
|
log("UCS2 STRING");
|
|
log("UCS2 Length: " + length);
|
|
log(reader.buffer.slice(reader.i,reader.i+length));
|
|
});
|
|
}
|
|
|
|
let out = '';
|
|
if (ucs2) {
|
|
out = reader.string({encoding:'ucs2',length:length});
|
|
this.debugLog("UCS2 String decoded: " + out);
|
|
} else if (length > 0) {
|
|
out = reader.string();
|
|
}
|
|
|
|
// Sometimes the string has a null at the end (included with the length)
|
|
// Strip it if present
|
|
if(out.charCodeAt(out.length-1) === 0) {
|
|
out = out.substring(0, out.length - 1);
|
|
}
|
|
|
|
if(stripColor) {
|
|
out = out.replace(/\x1b...|[\x00-\x1a]/gus,'');
|
|
}
|
|
|
|
return out;
|
|
}
|
|
|
|
async sendPacket(type,required) {
|
|
const outbuffer = Buffer.from([0x79,0,0,0,type]);
|
|
|
|
const packets = [];
|
|
return await this.udpSend(outbuffer,(buffer) => {
|
|
const reader = this.reader(buffer);
|
|
const header = reader.uint(4);
|
|
const iType = reader.uint(1);
|
|
if(iType !== type) return;
|
|
packets.push(reader.rest());
|
|
}, () => {
|
|
if(!packets.length && required) return;
|
|
return Buffer.concat(packets);
|
|
});
|
|
}
|
|
}
|
|
|
|
module.exports = Unreal2;
|