import {GameRoom} from "../Model/GameRoom"; import { ItemEventMessage, ItemStateMessage, PlayGlobalMessage, PointMessage, RoomJoinedMessage, ServerToClientMessage, SilentMessage, SubMessage, UserMovedMessage, UserMovesMessage, WebRtcDisconnectMessage, WebRtcSignalToClientMessage, WebRtcSignalToServerMessage, WebRtcStartMessage, QueryJitsiJwtMessage, SendJitsiJwtMessage, SendUserMessage, JoinRoomMessage, Zone as ProtoZone, BatchToPusherMessage, SubToPusherMessage, UserJoinedZoneMessage, GroupUpdateZoneMessage, GroupLeftZoneMessage, WorldFullWarningMessage, UserLeftZoneMessage, BanUserMessage, } from "../Messages/generated/messages_pb"; import {User, UserSocket} from "../Model/User"; import {ProtobufUtils} from "../Model/Websocket/ProtobufUtils"; import {Group} from "../Model/Group"; import {cpuTracker} from "./CpuTracker"; import { GROUP_RADIUS, JITSI_ISS, MINIMUM_DISTANCE, SECRET_JITSI_KEY, TURN_STATIC_AUTH_SECRET } from "../Enum/EnvironmentVariable"; import {Movable} from "../Model/Movable"; import {PositionInterface} from "../Model/PositionInterface"; import {adminApi, CharacterTexture} from "./AdminApi"; import Jwt from "jsonwebtoken"; import {JITSI_URL} from "../Enum/EnvironmentVariable"; import {clientEventsEmitter} from "./ClientEventsEmitter"; import {gaugeManager} from "./GaugeManager"; import {ZoneSocket} from "../RoomManager"; import {Zone} from "_Model/Zone"; import Debug from "debug"; import {Admin} from "_Model/Admin"; import crypto from "crypto"; const debug = Debug('sockermanager'); function emitZoneMessage(subMessage: SubToPusherMessage, socket: ZoneSocket): void { // TODO: should we batch those every 100ms? const batchMessage = new BatchToPusherMessage(); batchMessage.addPayload(subMessage); socket.write(batchMessage); } export class SocketManager { private rooms: Map = new Map(); constructor() { clientEventsEmitter.registerToClientJoin((clientUUid: string, roomId: string) => { gaugeManager.incNbClientPerRoomGauge(roomId); }); clientEventsEmitter.registerToClientLeave((clientUUid: string, roomId: string) => { gaugeManager.decNbClientPerRoomGauge(roomId); }); } public async handleJoinRoom(socket: UserSocket, joinRoomMessage: JoinRoomMessage): Promise<{ room: GameRoom; user: User }> { //join new previous room const {room, user} = await this.joinRoom(socket, joinRoomMessage); if (!socket.writable) { console.warn('Socket was aborted'); return { room, user }; } const roomJoinedMessage = new RoomJoinedMessage(); roomJoinedMessage.setTagList(joinRoomMessage.getTagList()); for (const [itemId, item] of room.getItemsState().entries()) { const itemStateMessage = new ItemStateMessage(); itemStateMessage.setItemid(itemId); itemStateMessage.setStatejson(JSON.stringify(item)); roomJoinedMessage.addItem(itemStateMessage); } roomJoinedMessage.setCurrentuserid(user.id); const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setRoomjoinedmessage(roomJoinedMessage); socket.write(serverToClientMessage); return { room, user }; } handleUserMovesMessage(room: GameRoom, user: User, userMovesMessage: UserMovesMessage) { try { const userMoves = userMovesMessage.toObject(); const position = userMovesMessage.getPosition(); // If CPU is high, let's drop messages of users moving (we will only dispatch the final position) if (cpuTracker.isOverHeating() && userMoves.position?.moving === true) { return; } if (position === undefined) { throw new Error('Position not found in message'); } const viewport = userMoves.viewport; if (viewport === undefined) { throw new Error('Viewport not found in message'); } // sending to all clients in room except sender /*client.position = { x: position.x, y: position.y, direction, moving: position.moving, }; client.viewport = viewport;*/ // update position in the world room.updatePosition(user, ProtobufUtils.toPointInterface(position)); //room.setViewport(client, client.viewport); } catch (e) { console.error('An error occurred on "user_position" event'); console.error(e); } } // Useless now, will be useful again if we allow editing details in game /*handleSetPlayerDetails(client: UserSocket, playerDetailsMessage: SetPlayerDetailsMessage) { const playerDetails = { name: playerDetailsMessage.getName(), characterLayers: playerDetailsMessage.getCharacterlayersList() }; //console.log(SocketIoEvent.SET_PLAYER_DETAILS, playerDetails); if (!isSetPlayerDetailsMessage(playerDetails)) { emitError(client, 'Invalid SET_PLAYER_DETAILS message received: '); return; } client.name = playerDetails.name; client.characterLayers = SocketManager.mergeCharacterLayersAndCustomTextures(playerDetails.characterLayers, client.textures); }*/ handleSilentMessage(room: GameRoom, user: User, silentMessage: SilentMessage) { try { room.setSilent(user, silentMessage.getSilent()); } catch (e) { console.error('An error occurred on "handleSilentMessage"'); console.error(e); } } handleItemEvent(room: GameRoom, user: User, itemEventMessage: ItemEventMessage) { const itemEvent = ProtobufUtils.toItemEvent(itemEventMessage); try { const subMessage = new SubMessage(); subMessage.setItemeventmessage(itemEventMessage); // Let's send the event without using the SocketIO room. // TODO: move this in the GameRoom class. for (const user of room.getUsers().values()) { user.emitInBatch(subMessage); } room.setItemState(itemEvent.itemId, itemEvent.state); } catch (e) { console.error('An error occurred on "item_event"'); console.error(e); } } // TODO: handle this message in pusher /*async handleReportMessage(client: ExSocketInterface, reportPlayerMessage: ReportPlayerMessage) { try { const reportedSocket = this.sockets.get(reportPlayerMessage.getReporteduserid()); if (!reportedSocket) { throw 'reported socket user not found'; } //TODO report user on admin application await adminApi.reportPlayer(reportedSocket.userUuid, reportPlayerMessage.getReportcomment(), client.userUuid) } catch (e) { console.error('An error occurred on "handleReportMessage"'); console.error(e); } }*/ emitVideo(room: GameRoom, user: User, data: WebRtcSignalToServerMessage): void { //send only at user const remoteUser = room.getUsers().get(data.getReceiverid()); if (remoteUser === undefined) { console.warn("While exchanging a WebRTC signal: client with id ", data.getReceiverid(), " does not exist. This might be a race condition."); return; } const webrtcSignalToClient = new WebRtcSignalToClientMessage(); webrtcSignalToClient.setUserid(user.id); webrtcSignalToClient.setSignal(data.getSignal()); // TODO: only compute credentials if data.signal.type === "offer" if (TURN_STATIC_AUTH_SECRET !== '') { const {username, password} = this.getTURNCredentials(''+user.id, TURN_STATIC_AUTH_SECRET); webrtcSignalToClient.setWebrtcusername(username); webrtcSignalToClient.setWebrtcpassword(password); } const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setWebrtcsignaltoclientmessage(webrtcSignalToClient); //if (!client.disconnecting) { remoteUser.socket.write(serverToClientMessage); //} } emitScreenSharing(room: GameRoom, user: User, data: WebRtcSignalToServerMessage): void { //send only at user const remoteUser = room.getUsers().get(data.getReceiverid()); if (remoteUser === undefined) { console.warn("While exchanging a WEBRTC_SCREEN_SHARING signal: client with id ", data.getReceiverid(), " does not exist. This might be a race condition."); return; } const webrtcSignalToClient = new WebRtcSignalToClientMessage(); webrtcSignalToClient.setUserid(user.id); webrtcSignalToClient.setSignal(data.getSignal()); // TODO: only compute credentials if data.signal.type === "offer" if (TURN_STATIC_AUTH_SECRET !== '') { const {username, password} = this.getTURNCredentials(''+user.id, TURN_STATIC_AUTH_SECRET); webrtcSignalToClient.setWebrtcusername(username); webrtcSignalToClient.setWebrtcpassword(password); } const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setWebrtcscreensharingsignaltoclientmessage(webrtcSignalToClient); //if (!client.disconnecting) { remoteUser.socket.write(serverToClientMessage); //} } leaveRoom(room: GameRoom, user: User){ // leave previous room and world try { //user leave previous world room.leave(user); if (room.isEmpty()) { this.rooms.delete(room.roomId); gaugeManager.decNbRoomGauge(); debug('Room is empty. Deleting room "%s"', room.roomId); } } finally { clientEventsEmitter.emitClientLeave(user.uuid, room.roomId); console.log('A user left'); } } async getOrCreateRoom(roomId: string): Promise { //check and create new world for a room let world = this.rooms.get(roomId) if(world === undefined){ world = new GameRoom( roomId, (user: User, group: Group) => this.joinWebRtcRoom(user, group), (user: User, group: Group) => this.disConnectedUser(user, group), MINIMUM_DISTANCE, GROUP_RADIUS, (thing: Movable, fromZone: Zone|null, listener: ZoneSocket) => this.onZoneEnter(thing, fromZone, listener), (thing: Movable, position:PositionInterface, listener: ZoneSocket) => this.onClientMove(thing, position, listener), (thing: Movable, newZone: Zone|null, listener: ZoneSocket) => this.onClientLeave(thing, newZone, listener) ); if (!world.anonymous) { const data = await adminApi.fetchMapDetails(world.organizationSlug, world.worldSlug, world.roomSlug) world.tags = data.tags world.policyType = Number(data.policy_type) } gaugeManager.incNbRoomGauge(); this.rooms.set(roomId, world); } return Promise.resolve(world) } private async joinRoom(socket: UserSocket, joinRoomMessage: JoinRoomMessage): Promise<{ room: GameRoom; user: User }> { const roomId = joinRoomMessage.getRoomid(); const room = await socketManager.getOrCreateRoom(roomId); //join world const user = room.join(socket, joinRoomMessage); clientEventsEmitter.emitClientJoin(user.uuid, roomId); console.log(new Date().toISOString() + ' A user joined'); return {room, user}; } private onZoneEnter(thing: Movable, fromZone: Zone|null, listener: ZoneSocket) { if (thing instanceof User) { const userJoinedZoneMessage = new UserJoinedZoneMessage(); if (!Number.isInteger(thing.id)) { throw new Error('clientUser.userId is not an integer '+thing.id); } userJoinedZoneMessage.setUserid(thing.id); userJoinedZoneMessage.setName(thing.name); userJoinedZoneMessage.setCharacterlayersList(ProtobufUtils.toCharacterLayerMessages(thing.characterLayers)); userJoinedZoneMessage.setPosition(ProtobufUtils.toPositionMessage(thing.getPosition())); userJoinedZoneMessage.setFromzone(this.toProtoZone(fromZone)); const subMessage = new SubToPusherMessage(); subMessage.setUserjoinedzonemessage(userJoinedZoneMessage); emitZoneMessage(subMessage, listener); //listener.emitInBatch(subMessage); } else if (thing instanceof Group) { this.emitCreateUpdateGroupEvent(listener, fromZone, thing); } else { console.error('Unexpected type for Movable.'); } } private onClientMove(thing: Movable, position:PositionInterface, listener: ZoneSocket): void { if (thing instanceof User) { const userMovedMessage = new UserMovedMessage(); userMovedMessage.setUserid(thing.id); userMovedMessage.setPosition(ProtobufUtils.toPositionMessage(thing.getPosition())); const subMessage = new SubToPusherMessage(); subMessage.setUsermovedmessage(userMovedMessage); emitZoneMessage(subMessage, listener); //listener.emitInBatch(subMessage); //console.log("Sending USER_MOVED event"); } else if (thing instanceof Group) { this.emitCreateUpdateGroupEvent(listener, null, thing); } else { console.error('Unexpected type for Movable.'); } } private onClientLeave(thing: Movable, newZone: Zone|null, listener: ZoneSocket) { if (thing instanceof User) { this.emitUserLeftEvent(listener, thing.id, newZone); } else if (thing instanceof Group) { this.emitDeleteGroupEvent(listener, thing.getId(), newZone); } else { console.error('Unexpected type for Movable.'); } } private emitCreateUpdateGroupEvent(client: ZoneSocket, fromZone: Zone|null, group: Group): void { const position = group.getPosition(); const pointMessage = new PointMessage(); pointMessage.setX(Math.floor(position.x)); pointMessage.setY(Math.floor(position.y)); const groupUpdateMessage = new GroupUpdateZoneMessage(); groupUpdateMessage.setGroupid(group.getId()); groupUpdateMessage.setPosition(pointMessage); groupUpdateMessage.setGroupsize(group.getSize); groupUpdateMessage.setFromzone(this.toProtoZone(fromZone)); const subMessage = new SubToPusherMessage(); subMessage.setGroupupdatezonemessage(groupUpdateMessage); emitZoneMessage(subMessage, client); //client.emitInBatch(subMessage); } private emitDeleteGroupEvent(client: ZoneSocket, groupId: number, newZone: Zone|null): void { const groupDeleteMessage = new GroupLeftZoneMessage(); groupDeleteMessage.setGroupid(groupId); groupDeleteMessage.setTozone(this.toProtoZone(newZone)); const subMessage = new SubToPusherMessage(); subMessage.setGroupleftzonemessage(groupDeleteMessage); emitZoneMessage(subMessage, client); //user.emitInBatch(subMessage); } private emitUserLeftEvent(client: ZoneSocket, userId: number, newZone: Zone|null): void { const userLeftMessage = new UserLeftZoneMessage(); userLeftMessage.setUserid(userId); userLeftMessage.setTozone(this.toProtoZone(newZone)); const subMessage = new SubToPusherMessage(); subMessage.setUserleftzonemessage(userLeftMessage); emitZoneMessage(subMessage, client); } private toProtoZone(zone: Zone|null): ProtoZone|undefined { if (zone !== null) { const zoneMessage = new ProtoZone(); zoneMessage.setX(zone.x); zoneMessage.setY(zone.y); return zoneMessage; } return undefined; } private joinWebRtcRoom(user: User, group: Group) { for (const otherUser of group.getUsers()) { if (user === otherUser) { continue; } // Let's send 2 messages: one to the user joining the group and one to the other user const webrtcStartMessage1 = new WebRtcStartMessage(); webrtcStartMessage1.setUserid(otherUser.id); webrtcStartMessage1.setName(otherUser.name); webrtcStartMessage1.setInitiator(true); if (TURN_STATIC_AUTH_SECRET !== '') { const {username, password} = this.getTURNCredentials(''+otherUser.id, TURN_STATIC_AUTH_SECRET); webrtcStartMessage1.setWebrtcusername(username); webrtcStartMessage1.setWebrtcpassword(password); } const serverToClientMessage1 = new ServerToClientMessage(); serverToClientMessage1.setWebrtcstartmessage(webrtcStartMessage1); //if (!user.socket.disconnecting) { user.socket.write(serverToClientMessage1); //console.log('Sending webrtcstart initiator to '+user.socket.userId) //} const webrtcStartMessage2 = new WebRtcStartMessage(); webrtcStartMessage2.setUserid(user.id); webrtcStartMessage2.setName(user.name); webrtcStartMessage2.setInitiator(false); if (TURN_STATIC_AUTH_SECRET !== '') { const {username, password} = this.getTURNCredentials(''+user.id, TURN_STATIC_AUTH_SECRET); webrtcStartMessage2.setWebrtcusername(username); webrtcStartMessage2.setWebrtcpassword(password); } const serverToClientMessage2 = new ServerToClientMessage(); serverToClientMessage2.setWebrtcstartmessage(webrtcStartMessage2); //if (!otherUser.socket.disconnecting) { otherUser.socket.write(serverToClientMessage2); //console.log('Sending webrtcstart to '+otherUser.socket.userId) //} } } /** * Computes a unique user/password for the TURN server, using a shared secret between the WorkAdventure API server * and the Coturn server. * The Coturn server should be initialized with parameters: `--use-auth-secret --static-auth-secret=MySecretKey` */ private getTURNCredentials(name: string, secret: string): {username: string, password: string} { const unixTimeStamp = Math.floor(Date.now()/1000) + 4*3600; // this credential would be valid for the next 4 hours const username = [unixTimeStamp, name].join(':'); const hmac = crypto.createHmac('sha1', secret); hmac.setEncoding('base64'); hmac.write(username); hmac.end(); const password = hmac.read(); return { username: username, password: password }; } //disconnect user private disConnectedUser(user: User, group: Group) { // Most of the time, sending a disconnect event to one of the players is enough (the player will close the connection // which will be shut for the other player). // However! In the rare case where the WebRTC connection is not yet established, if we close the connection on one of the player, // the other player will try connecting until a timeout happens (during this time, the connection icon will be displayed for nothing). // So we also send the disconnect event to the other player. for (const otherUser of group.getUsers()) { if (user === otherUser) { continue; } const webrtcDisconnectMessage1 = new WebRtcDisconnectMessage(); webrtcDisconnectMessage1.setUserid(user.id); const serverToClientMessage1 = new ServerToClientMessage(); serverToClientMessage1.setWebrtcdisconnectmessage(webrtcDisconnectMessage1); //if (!otherUser.socket.disconnecting) { otherUser.socket.write(serverToClientMessage1); //} const webrtcDisconnectMessage2 = new WebRtcDisconnectMessage(); webrtcDisconnectMessage2.setUserid(otherUser.id); const serverToClientMessage2 = new ServerToClientMessage(); serverToClientMessage2.setWebrtcdisconnectmessage(webrtcDisconnectMessage2); //if (!user.socket.disconnecting) { user.socket.write(serverToClientMessage2); //} } } emitPlayGlobalMessage(room: GameRoom, playGlobalMessage: PlayGlobalMessage) { try { const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setPlayglobalmessage(playGlobalMessage); for (const [id, user] of room.getUsers().entries()) { user.socket.write(serverToClientMessage); } } catch (e) { console.error('An error occurred on "emitPlayGlobalMessage" event'); console.error(e); } } public getWorlds(): Map { return this.rooms; } /** * * @param token */ /*searchClientByUuid(uuid: string): ExSocketInterface | null { for(const socket of this.sockets.values()){ if(socket.userUuid === uuid){ return socket; } } return null; }*/ public handleQueryJitsiJwtMessage(user: User, queryJitsiJwtMessage: QueryJitsiJwtMessage) { const room = queryJitsiJwtMessage.getJitsiroom(); const tag = queryJitsiJwtMessage.getTag(); // FIXME: this is not secure. We should load the JSON for the current room and check rights associated to room instead. if (SECRET_JITSI_KEY === '') { throw new Error('You must set the SECRET_JITSI_KEY key to the secret to generate JWT tokens for Jitsi.'); } // Let's see if the current client has const isAdmin = user.tags.includes(tag); const jwt = Jwt.sign({ "aud": "jitsi", "iss": JITSI_ISS, "sub": JITSI_URL, "room": room, "moderator": isAdmin }, SECRET_JITSI_KEY, { expiresIn: '1d', algorithm: "HS256", header: { "alg": "HS256", "typ": "JWT" } }); const sendJitsiJwtMessage = new SendJitsiJwtMessage(); sendJitsiJwtMessage.setJitsiroom(room); sendJitsiJwtMessage.setJwt(jwt); const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setSendjitsijwtmessage(sendJitsiJwtMessage); user.socket.write(serverToClientMessage); } public handlerSendUserMessage(user: User, sendUserMessageToSend: SendUserMessage){ const sendUserMessage = new SendUserMessage(); sendUserMessage.setMessage(sendUserMessageToSend.getMessage()); sendUserMessage.setType(sendUserMessageToSend.getType()); const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setSendusermessage(sendUserMessage); user.socket.write(serverToClientMessage); } public handlerBanUserMessage(room: GameRoom, user: User, banUserMessageToSend: BanUserMessage){ const banUserMessage = new BanUserMessage(); banUserMessage.setMessage(banUserMessageToSend.getMessage()); banUserMessage.setType(banUserMessageToSend.getType()); const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setSendusermessage(banUserMessage); user.socket.write(serverToClientMessage); setTimeout(() => { // Let's leave the room now. room.leave(user); // Let's close the connection when the user is banned. user.socket.end(); }, 10000); } public addZoneListener(call: ZoneSocket, roomId: string, x: number, y: number): void { const room = this.rooms.get(roomId); if (!room) { console.error("In addZoneListener, could not find room with id '" + roomId + "'"); return; } const things = room.addZoneListener(call, x, y); const batchMessage = new BatchToPusherMessage(); for (const thing of things) { if (thing instanceof User) { const userJoinedMessage = new UserJoinedZoneMessage(); userJoinedMessage.setUserid(thing.id); userJoinedMessage.setName(thing.name); userJoinedMessage.setCharacterlayersList(ProtobufUtils.toCharacterLayerMessages(thing.characterLayers)); userJoinedMessage.setPosition(ProtobufUtils.toPositionMessage(thing.getPosition())); const subMessage = new SubToPusherMessage(); subMessage.setUserjoinedzonemessage(userJoinedMessage); batchMessage.addPayload(subMessage); } else if (thing instanceof Group) { const groupUpdateMessage = new GroupUpdateZoneMessage(); groupUpdateMessage.setGroupid(thing.getId()); groupUpdateMessage.setPosition(ProtobufUtils.toPointMessage(thing.getPosition())); const subMessage = new SubToPusherMessage(); subMessage.setGroupupdatezonemessage(groupUpdateMessage); batchMessage.addPayload(subMessage); } else { console.error("Unexpected type for Movable returned by setViewport"); } } call.write(batchMessage); } removeZoneListener(call: ZoneSocket, roomId: string, x: number, y: number) { const room = this.rooms.get(roomId); if (!room) { console.error("In removeZoneListener, could not find room with id '" + roomId + "'"); return; } room.removeZoneListener(call, x, y); } public async handleJoinAdminRoom(admin: Admin, roomId: string): Promise { const room = await socketManager.getOrCreateRoom(roomId); room.adminJoin(admin); return room; } public leaveAdminRoom(room: GameRoom, admin: Admin){ room.adminLeave(admin); if (room.isEmpty()) { this.rooms.delete(room.roomId); gaugeManager.decNbRoomGauge(); debug('Room is empty. Deleting room "%s"', room.roomId); } } public sendAdminMessage(roomId: string, recipientUuid: string, message: string): void { const room = this.rooms.get(roomId); if (!room) { console.error("In sendAdminMessage, could not find room with id '" + roomId + "'. Maybe the room was closed a few milliseconds ago and there was a race condition?"); return; } const recipient = room.getUserByUuid(recipientUuid); if (recipient === undefined) { console.error("In sendAdminMessage, could not find user with id '" + recipientUuid + "'. Maybe the user left the room a few milliseconds ago and there was a race condition?"); return; } const sendUserMessage = new SendUserMessage(); sendUserMessage.setMessage(message); sendUserMessage.setType('ban'); //todo: is the type correct? const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setSendusermessage(sendUserMessage); recipient.socket.write(serverToClientMessage); } public banUser(roomId: string, recipientUuid: string, message: string): void { const room = this.rooms.get(roomId); if (!room) { console.error("In banUser, could not find room with id '" + roomId + "'. Maybe the room was closed a few milliseconds ago and there was a race condition?"); return; } const recipient = room.getUserByUuid(recipientUuid); if (recipient === undefined) { console.error("In banUser, could not find user with id '" + recipientUuid + "'. Maybe the user left the room a few milliseconds ago and there was a race condition?"); return; } // Let's leave the room now. room.leave(recipient); const banUserMessage = new BanUserMessage(); banUserMessage.setMessage(message); banUserMessage.setType('banned'); const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setBanusermessage(banUserMessage); // Let's close the connection when the user is banned. recipient.socket.write(serverToClientMessage); recipient.socket.end(); } sendAdminRoomMessage(roomId: string, message: string) { const room = this.rooms.get(roomId); if (!room) { //todo: this should cause the http call to return a 500 console.error("In sendAdminRoomMessage, could not find room with id '" + roomId + "'. Maybe the room was closed a few milliseconds ago and there was a race condition?"); return; } room.getUsers().forEach((recipient) => { const sendUserMessage = new SendUserMessage(); sendUserMessage.setMessage(message); sendUserMessage.setType('message'); const clientMessage = new ServerToClientMessage(); clientMessage.setSendusermessage(sendUserMessage); recipient.socket.write(clientMessage); }); } dispatchWorlFullWarning(roomId: string,): void { const room = this.rooms.get(roomId); if (!room) { //todo: this should cause the http call to return a 500 console.error("In sendAdminRoomMessage, could not find room with id '" + roomId + "'. Maybe the room was closed a few milliseconds ago and there was a race condition?"); return; } room.getUsers().forEach((recipient) => { const worldFullMessage = new WorldFullWarningMessage(); const clientMessage = new ServerToClientMessage(); clientMessage.setWorldfullwarningmessage(worldFullMessage); recipient.socket.write(clientMessage); }); } } export const socketManager = new SocketManager();