import Core from './core.js' const stringKeys = new Set([ 'website', 'gametype', 'gamemode', 'player' ]) function normalizeEntry ([key, value]) { key = key.toLowerCase() const split = key.split('_') let keyType = key if (split.length === 2 && !isNaN(Number(split[1]))) { keyType = split[0] } if (!stringKeys.has(keyType) && !keyType.includes('name')) { // todo! the latter check might be problematic, fails on key "name_tag_distance_scope" if (value.toLowerCase() === 'true') { value = true } else if (value.toLowerCase() === 'false') { value = false } else if (value.length && !isNaN(Number(value))) { value = Number(value) } } return [key, value] } export default class gamespy1 extends Core { constructor () { super() this.encoding = 'latin1' this.byteorder = 'be' } async run (state) { const raw = await this.sendPacket('\\status\\xserverquery') // Convert all keys to lowercase and normalize value types const data = Object.fromEntries(Object.entries(raw).map(entry => normalizeEntry(entry))) state.raw = data if ('hostname' in data) state.name = data.hostname if ('mapname' in data) state.map = data.mapname if (this.trueTest(data.password)) state.password = true if ('maxplayers' in data) state.maxplayers = Number(data.maxplayers) if ('hostport' in data) state.gamePort = Number(data.hostport) const teamOffByOne = data.gamename === 'bfield1942' const playersById = {} const teamNamesById = {} for (const ident of Object.keys(data)) { const split = ident.split('_') if (split.length !== 2) continue let key = split[0].toLowerCase() const id = Number(split[1]) if (isNaN(id)) continue let value = data[ident] delete data[ident] if (key !== 'team' && key.startsWith('team')) { // Info about a team if (key === 'teamname') { teamNamesById[id] = value } else { // other team info which we don't track } } else { // Info about a player if (!(id in playersById)) playersById[id] = {} if (key === 'playername' || key === 'player') { key = 'name' } if (key === 'team' && !isNaN(value)) { // todo! technically, this NaN check isn't needed. key = 'teamId' value += teamOffByOne ? -1 : 0 } playersById[id][key] = value } } state.raw.teams = teamNamesById const players = Object.values(playersById) 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 (Object.prototype.hasOwnProperty.call(player, 'teamId')) { if (Object.keys(teamNamesById).length) { player.team = teamNamesById[player.teamId] || '' } else { player.team = player.teamId delete player.teamId } } state.players.push(player) } state.numplayers = state.players.length } async sendPacket (type) { let receivedQueryId const output = {} const parts = new Set() let maxPartNum = 0 return await this.udpSend(type, buffer => { const reader = this.reader(buffer) const str = reader.string(buffer.length) const split = str.split('\\') split.shift() const data = {} while (split.length) { const key = split.shift() const value = split.shift() || '' data[key] = value } let queryId, partNum const partFinal = ('final' in data) if (data.queryid) { const split = data.queryid.split('.') if (split.length >= 2) { partNum = Number(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 || '?')) for (const i of Object.keys(data)) { output[i] = data[i] } if (maxPartNum && parts.size === maxPartNum) { this.logger.debug('Received all parts') this.logger.debug(output) return output } }) } }