node-gamedig/protocols/gamespy1.js

162 lines
5.8 KiB
JavaScript
Raw Normal View History

2019-01-09 12:35:11 +01:00
const Core = require('./core');
2014-10-29 08:02:03 +01:00
class Gamespy1 extends Core {
2017-08-09 12:32:09 +02:00
constructor() {
super();
this.encoding = 'latin1';
this.byteorder = 'be';
}
2014-10-29 08:02:03 +01:00
2019-01-09 12:35:11 +01:00
async run(state) {
{
const data = await this.sendPacket('info');
state.raw = data;
if ('hostname' in state.raw) state.name = state.raw.hostname;
if ('mapname' in state.raw) state.map = state.raw.mapname;
if (this.trueTest(state.raw.password)) state.password = true;
if ('maxplayers' in state.raw) state.maxplayers = parseInt(state.raw.maxplayers);
2019-01-12 12:45:09 +01:00
if ('hostport' in state.raw) state.gamePort = parseInt(state.raw.hostport);
2019-01-09 12:35:11 +01:00
}
{
const data = await this.sendPacket('rules');
state.raw.rules = data;
}
{
const data = await this.sendPacket('players');
const playersById = {};
const teamNamesById = {};
2019-01-09 12:35:11 +01:00
for (const ident of Object.keys(data)) {
const split = ident.split('_');
let key = split[0];
const id = split[1];
let value = data[ident];
2014-10-29 08:02:03 +01:00
2019-01-09 12:35:11 +01:00
if (key === 'teamname') {
teamNamesById[id] = value;
2019-01-09 12:35:11 +01:00
} else {
if (!(id in playersById)) playersById[id] = {};
2019-01-09 12:35:11 +01:00
if (key === 'playername') key = 'name';
else if (key === 'team') value = parseInt(value);
else if (key === 'score' || key === 'ping' || key === 'deaths' || key === 'kills') value = parseInt(value);
playersById[id][key] = value;
2019-01-09 12:35:11 +01:00
}
2017-08-09 12:32:09 +02:00
}
state.raw.teams = teamNamesById;
2017-08-09 12:32:09 +02:00
const players = Object.values(playersById);
// Determine which team id might be for spectators
let specTeamId = null;
for (const player of players) {
if (!player.team) {
continue;
} else if (teamNamesById[player.team]) {
continue;
} else if (teamNamesById[player.team-1] && (specTeamId === null || specTeamId === player.team)) {
specTeamId = player.team;
} else {
specTeamId = null;
break;
}
}
this.logger.debug(log => {
if (specTeamId === null) {
log("Could not detect a team ID for spectators");
} else {
log("Detected that team ID " + specTeamId + " is probably for spectators");
}
});
const seenHashes = new Set();
for (const player of players) {
// Some servers (bf1942) report the same player multiple times (bug?)
// Ignore these duplicates
if (player.keyhash) {
if (seenHashes.has(player.keyhash)) {
this.logger.debug("Rejected player with hash " + player.keyhash + " (Duplicate keyhash)");
continue;
} else {
seenHashes.add(player.keyhash);
}
}
// Convert player's team ID to team name if possible
if (player.team) {
if (teamNamesById[player.team]) {
player.team = teamNamesById[player.team];
} else if (player.team === specTeamId) {
player.team = "spec";
}
}
state.players.push(player);
2019-01-09 12:35:11 +01:00
}
}
2017-08-09 12:32:09 +02:00
}
2019-01-09 12:35:11 +01:00
async sendPacket(type) {
let receivedQueryId;
const output = {};
const parts = new Set();
let maxPartNum = 0;
2019-01-09 12:35:11 +01:00
return await this.udpSend('\\'+type+'\\', buffer => {
const reader = this.reader(buffer);
2019-02-05 02:58:28 +01:00
const str = reader.string(buffer.length);
const split = str.split('\\');
2017-08-09 12:32:09 +02:00
split.shift();
const data = {};
2017-08-09 12:32:09 +02:00
while(split.length) {
const key = split.shift();
const value = split.shift() || '';
2017-08-09 12:32:09 +02:00
data[key] = value;
}
let queryId, partNum;
const partFinal = ('final' in data);
if (data.queryid) {
const split = data.queryid.split('.');
if (split.length >= 2) {
partNum = parseInt(split[1]);
}
queryId = split[0];
}
delete data.final;
delete data.queryid;
this.logger.debug("Received part num=" + partNum + " queryId=" + queryId + " final=" + partFinal);
if (queryId) {
if (receivedQueryId && receivedQueryId !== queryId) {
this.logger.debug("Rejected packet (Wrong query ID)");
return;
} else if (!receivedQueryId) {
receivedQueryId = queryId;
}
}
if (!partNum) {
partNum = parts.size;
this.logger.debug("No part number received (assigned #" + partNum + ")");
}
if (parts.has(partNum)) {
this.logger.debug("Rejected packet (Duplicate part)");
return;
}
parts.add(partNum);
if (partFinal) {
maxPartNum = partNum;
}
this.logger.debug("Received part #" + partNum + " of " + (maxPartNum ? maxPartNum : "?"));
for(const i of Object.keys(data)) {
output[i] = data[i];
}
if (maxPartNum && parts.size === maxPartNum) {
this.logger.debug("Received all parts");
2019-01-09 12:35:11 +01:00
return output;
2017-08-09 12:32:09 +02:00
}
});
}
}
module.exports = Gamespy1;