import * as http from "http"; import {MessageUserPosition, Point} from "../Model/Websocket/MessageUserPosition"; //TODO fix import by "_Model/.." import {ExSocketInterface} from "../Model/Websocket/ExSocketInterface"; //TODO fix import by "_Model/.." import Jwt, {JsonWebTokenError} from "jsonwebtoken"; import {SECRET_KEY, MINIMUM_DISTANCE, GROUP_RADIUS, ALLOW_ARTILLERY} from "../Enum/EnvironmentVariable"; //TODO fix import by "_Enum/..." import {World} from "../Model/World"; import {Group} from "../Model/Group"; import {User} from "../Model/User"; import {isSetPlayerDetailsMessage,} from "../Model/Websocket/SetPlayerDetailsMessage"; import {MessageUserJoined} from "../Model/Websocket/MessageUserJoined"; import si from "systeminformation"; import {Gauge} from "prom-client"; import {TokenInterface} from "../Controller/AuthenticateController"; import {isJoinRoomMessageInterface} from "../Model/Websocket/JoinRoomMessage"; import {PointInterface} from "../Model/Websocket/PointInterface"; import {isWebRtcSignalMessageInterface} from "../Model/Websocket/WebRtcSignalMessage"; import {UserInGroupInterface} from "../Model/Websocket/UserInGroupInterface"; import {isItemEventMessageInterface} from "../Model/Websocket/ItemEventMessage"; import { v4 as uuidv4 } from 'uuid'; import {GroupUpdateInterface} from "_Model/Websocket/GroupUpdateInterface"; import {Movable} from "../Model/Movable"; import { PositionMessage, SetPlayerDetailsMessage, SubMessage, UserMovedMessage, BatchMessage, GroupUpdateMessage, PointMessage, GroupDeleteMessage, UserJoinedMessage, UserLeftMessage, ItemEventMessage, ViewportMessage, ClientToServerMessage, JoinRoomMessage, ErrorMessage, RoomJoinedMessage, ItemStateMessage, ServerToClientMessage, SetUserIdMessage, SilentMessage, WebRtcSignalToClientMessage, WebRtcSignalToServerMessage, WebRtcStartMessage, WebRtcDisconnectMessage, PlayGlobalMessage } from "../Messages/generated/messages_pb"; import {UserMovesMessage} from "../Messages/generated/messages_pb"; import Direction = PositionMessage.Direction; import {ProtobufUtils} from "../Model/Websocket/ProtobufUtils"; import {App, HttpRequest, TemplatedApp, WebSocket} from "uWebSockets.js" import {parse} from "query-string"; import {cpuTracker} from "../Services/CpuTracker"; function emitInBatch(socket: ExSocketInterface, payload: SubMessage): void { socket.batchedMessages.addPayload(payload); if (socket.batchTimeout === null) { socket.batchTimeout = setTimeout(() => { if (socket.disconnecting) { return; } const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setBatchmessage(socket.batchedMessages); socket.send(serverToClientMessage.serializeBinary().buffer, true); socket.batchedMessages = new BatchMessage(); socket.batchTimeout = null; }, 100); } } export class IoSocketController { private Worlds: Map = new Map(); private sockets: Map = new Map(); private nbClientsGauge: Gauge; private nbClientsPerRoomGauge: Gauge; private nextUserId: number = 1; constructor(private readonly app: TemplatedApp) { this.nbClientsGauge = new Gauge({ name: 'workadventure_nb_sockets', help: 'Number of connected sockets', labelNames: [ ] }); this.nbClientsPerRoomGauge = new Gauge({ name: 'workadventure_nb_clients_per_room', help: 'Number of clients per room', labelNames: [ 'room' ] }); this.ioConnection(); } private isValidToken(token: object): token is TokenInterface { if (typeof((token as TokenInterface).userUuid) !== 'string') { return false; } return true; } /** * * @param token */ /* searchClientByToken(token: string): ExSocketInterface | null { const clients: ExSocketInterface[] = Object.values(this.Io.sockets.sockets) as ExSocketInterface[]; for (let i = 0; i < clients.length; i++) { const client = clients[i]; if (client.token !== token) { continue } return client; } return null; }*/ private async authenticate(req: HttpRequest): Promise<{ token: string, userUuid: string }> { //console.log(socket.handshake.query.token); const query = parse(req.getQuery()); if (!query.token) { throw new Error('An authentication error happened, a user tried to connect without a token.'); } const token = query.token; if (typeof(token) !== "string") { throw new Error('Token is expected to be a string'); } if(token === 'test') { if (ALLOW_ARTILLERY) { return { token, userUuid: uuidv4() } } else { throw new Error("In order to perform a load-testing test on this environment, you must set the ALLOW_ARTILLERY environment variable to 'true'"); } } /*if(this.searchClientByToken(socket.handshake.query.token)){ console.error('An authentication error happened, a user tried to connect while its token is already connected.'); return next(new Error('Authentication error')); }*/ const promise = new Promise<{ token: string, userUuid: string }>((resolve, reject) => { Jwt.verify(token, SECRET_KEY, {},(err, tokenDecoded) => { if (err) { console.error('An authentication error happened, invalid JsonWebToken.', err); reject(new Error('An authentication error happened, invalid JsonWebToken. '+err.message)); return; } if (tokenDecoded === undefined) { console.error('Empty token found.'); reject(new Error('Empty token found.')); return; } const tokenInterface = tokenDecoded as TokenInterface; if (!this.isValidToken(tokenInterface)) { reject(new Error('Authentication error, invalid token structure.')); return; } resolve({ token, userUuid: tokenInterface.userUuid }); }); }); return promise; } ioConnection() { this.app.ws('/*', { /* Options */ //compression: uWS.SHARED_COMPRESSOR, maxPayloadLength: 16 * 1024 * 1024, maxBackpressure: 65536, // Maximum 64kB of data in the buffer. //idleTimeout: 10, upgrade: (res, req, context) => { //console.log('An Http connection wants to become WebSocket, URL: ' + req.getUrl() + '!'); (async () => { /* Keep track of abortions */ const upgradeAborted = {aborted: false}; res.onAborted(() => { /* We can simply signal that we were aborted */ upgradeAborted.aborted = true; }); try { const result = await this.authenticate(req); if (upgradeAborted.aborted) { console.log("Ouch! Client disconnected before we could upgrade it!"); /* You must not upgrade now */ return; } /* This immediately calls open handler, you must not use res after this call */ res.upgrade({ // Data passed here is accessible on the "websocket" socket object. url: req.getUrl(), token: result.token, userUuid: result.userUuid }, /* Spell these correctly */ req.getHeader('sec-websocket-key'), req.getHeader('sec-websocket-protocol'), req.getHeader('sec-websocket-extensions'), context); } catch (e) { if (e instanceof Error) { console.warn(e.message); res.writeStatus("401 Unauthorized").end(e.message); } else { console.warn(e); res.writeStatus("500 Internal Server Error").end('An error occurred'); } return; } })(); }, /* Handlers */ open: (ws) => { const client : ExSocketInterface = ws as ExSocketInterface; client.userId = this.nextUserId; this.nextUserId++; client.userUuid = ws.userUuid; client.token = ws.token; client.batchedMessages = new BatchMessage(); client.batchTimeout = null; client.emitInBatch = (payload: SubMessage): void => { emitInBatch(client, payload); } client.disconnecting = false; this.sockets.set(client.userId, client); // Let's log server load when a user joins this.nbClientsGauge.inc(); console.log(new Date().toISOString() + ' A user joined (', this.sockets.size, ' connected users)'); }, message: (ws, arrayBuffer, isBinary) => { const client = ws as ExSocketInterface; const message = ClientToServerMessage.deserializeBinary(new Uint8Array(arrayBuffer)); if (message.hasJoinroommessage()) { this.handleJoinRoom(client, message.getJoinroommessage() as JoinRoomMessage); } else if (message.hasViewportmessage()) { this.handleViewport(client, message.getViewportmessage() as ViewportMessage); } else if (message.hasUsermovesmessage()) { this.handleUserMovesMessage(client, message.getUsermovesmessage() as UserMovesMessage); } else if (message.hasSetplayerdetailsmessage()) { this.handleSetPlayerDetails(client, message.getSetplayerdetailsmessage() as SetPlayerDetailsMessage); } else if (message.hasSilentmessage()) { this.handleSilentMessage(client, message.getSilentmessage() as SilentMessage); } else if (message.hasItemeventmessage()) { this.handleItemEvent(client, message.getItemeventmessage() as ItemEventMessage); } else if (message.hasWebrtcsignaltoservermessage()) { this.emitVideo(client, message.getWebrtcsignaltoservermessage() as WebRtcSignalToServerMessage) } else if (message.hasWebrtcscreensharingsignaltoservermessage()) { this.emitScreenSharing(client, message.getWebrtcscreensharingsignaltoservermessage() as WebRtcSignalToServerMessage) } else if (message.hasPlayglobalmessage()) { this.emitPlayGlobalMessage(client, message.getPlayglobalmessage() as PlayGlobalMessage) } /* Ok is false if backpressure was built up, wait for drain */ //let ok = ws.send(message, isBinary); }, drain: (ws) => { console.log('WebSocket backpressure: ' + ws.getBufferedAmount()); }, close: (ws, code, message) => { const Client = (ws as ExSocketInterface); try { Client.disconnecting = true; //leave room this.leaveRoom(Client); //delete all socket information /*delete Client.roomId; delete Client.token; delete Client.position;*/ } catch (e) { console.error('An error occurred on "disconnect"'); console.error(e); } this.sockets.delete(Client.userId); // Let's log server load when a user leaves this.nbClientsGauge.dec(); console.log('A user left (', this.sockets.size, ' connected users)'); } }) // TODO: finish this! /*this.Io.on(SocketIoEvent.CONNECTION, (socket: Socket) => { socket.on(SocketIoEvent.WEBRTC_SIGNAL, (data: unknown) => { this.emitVideo((socket as ExSocketInterface), data); }); socket.on(SocketIoEvent.WEBRTC_SCREEN_SHARING_SIGNAL, (data: unknown) => { this.emitScreenSharing((socket as ExSocketInterface), data); }); });*/ } private emitError(Client: ExSocketInterface, message: string): void { const errorMessage = new ErrorMessage(); errorMessage.setMessage(message); const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setErrormessage(errorMessage); if (!Client.disconnecting) { Client.send(serverToClientMessage.serializeBinary().buffer, true); } console.warn(message); } private handleJoinRoom(Client: ExSocketInterface, message: JoinRoomMessage): void { try { /*if (!isJoinRoomMessageInterface(message.toObject())) { console.log(message.toObject()) this.emitError(Client, 'Invalid JOIN_ROOM message received: ' + message.toObject().toString()); return; }*/ const roomId = message.getRoomid(); if (Client.roomId === roomId) { return; } //leave previous room //this.leaveRoom(Client); // Useless now, there is only one room per connection //join new previous room const world = this.joinRoom(Client, roomId, ProtobufUtils.toPointInterface(message.getPosition() as PositionMessage)); const things = world.setViewport(Client, (message.getViewport() as ViewportMessage).toObject()); const roomJoinedMessage = new RoomJoinedMessage(); for (const thing of things) { if (thing instanceof User) { const player: ExSocketInterface|undefined = this.sockets.get(thing.id); if (player === undefined) { console.warn('Something went wrong. The World contains a user "'+thing.id+"' but this user does not exist in the sockets list!"); continue; } const userJoinedMessage = new UserJoinedMessage(); userJoinedMessage.setUserid(thing.id); userJoinedMessage.setName(player.name); userJoinedMessage.setCharacterlayersList(player.characterLayers); userJoinedMessage.setPosition(ProtobufUtils.toPositionMessage(player.position)); roomJoinedMessage.addUser(userJoinedMessage); } else if (thing instanceof Group) { const groupUpdateMessage = new GroupUpdateMessage(); groupUpdateMessage.setGroupid(thing.getId()); groupUpdateMessage.setPosition(ProtobufUtils.toPointMessage(thing.getPosition())); roomJoinedMessage.addGroup(groupUpdateMessage); } else { console.error("Unexpected type for Movable returned by setViewport"); } } for (const [itemId, item] of world.getItemsState().entries()) { const itemStateMessage = new ItemStateMessage(); itemStateMessage.setItemid(itemId); itemStateMessage.setStatejson(JSON.stringify(item)); roomJoinedMessage.addItem(itemStateMessage); } const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setRoomjoinedmessage(roomJoinedMessage); if (!Client.disconnecting) { Client.send(serverToClientMessage.serializeBinary().buffer, true); } } catch (e) { console.error('An error occurred on "join_room" event'); console.error(e); } } private handleViewport(client: ExSocketInterface, viewportMessage: ViewportMessage) { try { const viewport = viewportMessage.toObject(); client.viewport = viewport; const world = this.Worlds.get(client.roomId); if (!world) { console.error("In SET_VIEWPORT, could not find world with id '", client.roomId, "'"); return; } world.setViewport(client, client.viewport); } catch (e) { console.error('An error occurred on "SET_VIEWPORT" event'); console.error(e); } } private handleUserMovesMessage(client: ExSocketInterface, userMovesMessage: UserMovesMessage) { //console.log(SockerIoEvent.USER_POSITION, userMovesMessage); try { const userMoves = userMovesMessage.toObject(); // 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; } const position = userMoves.position; 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'); } let direction: string; switch (position.direction) { case Direction.UP: direction = 'up'; break; case Direction.DOWN: direction = 'down'; break; case Direction.LEFT: direction = 'left'; break; case Direction.RIGHT: direction = 'right'; break; default: throw new Error("Unexpected direction"); } // 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 const world = this.Worlds.get(client.roomId); if (!world) { console.error("In USER_POSITION, could not find world with id '", client.roomId, "'"); return; } world.updatePosition(client, client.position); world.setViewport(client, client.viewport); } catch (e) { console.error('An error occurred on "user_position" event'); console.error(e); } } private handleSetPlayerDetails(client: ExSocketInterface, playerDetailsMessage: SetPlayerDetailsMessage) { const playerDetails = { name: playerDetailsMessage.getName(), characterLayers: playerDetailsMessage.getCharacterlayersList() }; //console.log(SocketIoEvent.SET_PLAYER_DETAILS, playerDetails); if (!isSetPlayerDetailsMessage(playerDetails)) { this.emitError(client, 'Invalid SET_PLAYER_DETAILS message received: '); return; } client.name = playerDetails.name; client.characterLayers = playerDetails.characterLayers; const setUserIdMessage = new SetUserIdMessage(); setUserIdMessage.setUserid(client.userId); const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setSetuseridmessage(setUserIdMessage); if (!client.disconnecting) { client.send(serverToClientMessage.serializeBinary().buffer, true); } } private handleSilentMessage(client: ExSocketInterface, silentMessage: SilentMessage) { try { // update position in the world const world = this.Worlds.get(client.roomId); if (!world) { console.error("In handleSilentMessage, could not find world with id '", client.roomId, "'"); return; } world.setSilent(client, silentMessage.getSilent()); } catch (e) { console.error('An error occurred on "handleSilentMessage"'); console.error(e); } } private handleItemEvent(ws: ExSocketInterface, itemEventMessage: ItemEventMessage) { const itemEvent = ProtobufUtils.toItemEvent(itemEventMessage); try { const world = this.Worlds.get(ws.roomId); if (!world) { console.error("Could not find world with id '", ws.roomId, "'"); return; } const subMessage = new SubMessage(); subMessage.setItemeventmessage(itemEventMessage); // Let's send the event without using the SocketIO room. for (const user of world.getUsers().values()) { const client = this.searchClientByIdOrFail(user.id); //client.emit(SocketIoEvent.ITEM_EVENT, itemEvent); emitInBatch(client, subMessage); } world.setItemState(itemEvent.itemId, itemEvent.state); } catch (e) { console.error('An error occurred on "item_event"'); console.error(e); } } emitVideo(socket: ExSocketInterface, data: WebRtcSignalToServerMessage): void { //send only at user const client = this.sockets.get(data.getReceiverid()); if (client === 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(socket.userId); webrtcSignalToClient.setSignal(data.getSignal()); const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setWebrtcsignaltoclientmessage(webrtcSignalToClient); if (!client.disconnecting) { client.send(serverToClientMessage.serializeBinary().buffer, true); } } emitScreenSharing(socket: ExSocketInterface, data: WebRtcSignalToServerMessage): void { //send only at user const client = this.sockets.get(data.getReceiverid()); if (client === 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(socket.userId); webrtcSignalToClient.setSignal(data.getSignal()); const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setWebrtcscreensharingsignaltoclientmessage(webrtcSignalToClient); if (!client.disconnecting) { client.send(serverToClientMessage.serializeBinary().buffer, true); } } searchClientByIdOrFail(userId: number): ExSocketInterface { const client: ExSocketInterface|undefined = this.sockets.get(userId); if (client === undefined) { throw new Error("Could not find user with id " + userId); } return client; } leaveRoom(Client : ExSocketInterface){ // leave previous room and world if(Client.roomId){ try { //user leave previous world const world: World | undefined = this.Worlds.get(Client.roomId); if (world) { world.leave(Client); if (world.isEmpty()) { this.Worlds.delete(Client.roomId); } } //user leave previous room //Client.leave(Client.roomId); } finally { this.nbClientsPerRoomGauge.dec({ room: Client.roomId }); //delete Client.roomId; } } } private joinRoom(Client : ExSocketInterface, roomId: string, position: PointInterface): World { //join user in room //Client.join(roomId); this.nbClientsPerRoomGauge.inc({ room: roomId }); Client.roomId = roomId; Client.position = position; //check and create new world for a room let world = this.Worlds.get(roomId) if(world === undefined){ world = new World((user1: User, group: Group) => { this.joinWebRtcRoom(user1, group); }, (user1: User, group: Group) => { this.disConnectedUser(user1, group); }, MINIMUM_DISTANCE, GROUP_RADIUS, (thing: Movable, listener: User) => { const clientListener = this.searchClientByIdOrFail(listener.id); if (thing instanceof User) { const clientUser = this.searchClientByIdOrFail(thing.id); const userJoinedMessage = new UserJoinedMessage(); if (!Number.isInteger(clientUser.userId)) { throw new Error('clientUser.userId is not an integer '+clientUser.userId); } userJoinedMessage.setUserid(clientUser.userId); userJoinedMessage.setName(clientUser.name); userJoinedMessage.setCharacterlayersList(clientUser.characterLayers); userJoinedMessage.setPosition(ProtobufUtils.toPositionMessage(clientUser.position)); const subMessage = new SubMessage(); subMessage.setUserjoinedmessage(userJoinedMessage); emitInBatch(clientListener, subMessage); } else if (thing instanceof Group) { this.emitCreateUpdateGroupEvent(clientListener, thing); } else { console.error('Unexpected type for Movable.'); } }, (thing: Movable, position, listener) => { const clientListener = this.searchClientByIdOrFail(listener.id); if (thing instanceof User) { const clientUser = this.searchClientByIdOrFail(thing.id); const userMovedMessage = new UserMovedMessage(); userMovedMessage.setUserid(clientUser.userId); userMovedMessage.setPosition(ProtobufUtils.toPositionMessage(clientUser.position)); const subMessage = new SubMessage(); subMessage.setUsermovedmessage(userMovedMessage); clientListener.emitInBatch(subMessage); //console.log("Sending USER_MOVED event"); } else if (thing instanceof Group) { this.emitCreateUpdateGroupEvent(clientListener, thing); } else { console.error('Unexpected type for Movable.'); } }, (thing: Movable, listener) => { const clientListener = this.searchClientByIdOrFail(listener.id); if (thing instanceof User) { const clientUser = this.searchClientByIdOrFail(thing.id); this.emitUserLeftEvent(clientListener, clientUser.userId); } else if (thing instanceof Group) { this.emitDeleteGroupEvent(clientListener, thing.getId()); } else { console.error('Unexpected type for Movable.'); } }); this.Worlds.set(roomId, world); } // Dispatch groups position to newly connected user world.getGroups().forEach((group: Group) => { this.emitCreateUpdateGroupEvent(Client, group); }); //join world world.join(Client, Client.position); return world; } private emitCreateUpdateGroupEvent(client: ExSocketInterface, 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 GroupUpdateMessage(); groupUpdateMessage.setGroupid(group.getId()); groupUpdateMessage.setPosition(pointMessage); const subMessage = new SubMessage(); subMessage.setGroupupdatemessage(groupUpdateMessage); emitInBatch(client, subMessage); //socket.emit(SocketIoEvent.GROUP_CREATE_UPDATE, groupUpdateMessage.serializeBinary().buffer); } private emitDeleteGroupEvent(client: ExSocketInterface, groupId: number): void { const groupDeleteMessage = new GroupDeleteMessage(); groupDeleteMessage.setGroupid(groupId); const subMessage = new SubMessage(); subMessage.setGroupdeletemessage(groupDeleteMessage); emitInBatch(client, subMessage); } private emitUserLeftEvent(client: ExSocketInterface, userId: number): void { const userLeftMessage = new UserLeftMessage(); userLeftMessage.setUserid(userId); const subMessage = new SubMessage(); subMessage.setUserleftmessage(userLeftMessage); emitInBatch(client, subMessage); } joinWebRtcRoom(user: User, group: Group) { /*const roomId: string = "webrtcroom"+group.getId(); if (user.socket.webRtcRoomId === roomId) { return; }*/ 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.socket.name); webrtcStartMessage1.setInitiator(true); const serverToClientMessage1 = new ServerToClientMessage(); serverToClientMessage1.setWebrtcstartmessage(webrtcStartMessage1); if (!user.socket.disconnecting) { user.socket.send(serverToClientMessage1.serializeBinary().buffer, true); //console.log('Sending webrtcstart initiator to '+user.socket.userId) } const webrtcStartMessage2 = new WebRtcStartMessage(); webrtcStartMessage2.setUserid(user.id); webrtcStartMessage2.setName(user.socket.name); webrtcStartMessage2.setInitiator(false); const serverToClientMessage2 = new ServerToClientMessage(); serverToClientMessage2.setWebrtcstartmessage(webrtcStartMessage2); if (!otherUser.socket.disconnecting) { otherUser.socket.send(serverToClientMessage2.serializeBinary().buffer, true); //console.log('Sending webrtcstart to '+otherUser.socket.userId) } } /* socket.join(roomId); socket.webRtcRoomId = roomId; //if two persons in room share if (this.Io.sockets.adapter.rooms[roomId].length < 2) { return; } // TODO: scanning all sockets is maybe not the most efficient const clients: Array = (Object.values(this.Io.sockets.sockets) as Array) .filter((client: ExSocketInterface) => client.webRtcRoomId && client.webRtcRoomId === roomId); //send start at one client to initialise offer webrtc //send all users in room to create PeerConnection in front clients.forEach((client: ExSocketInterface, index: number) => { const peerClients = clients.reduce((tabs: Array, clientId: ExSocketInterface, indexClientId: number) => { if (!clientId.userId || clientId.userId === client.userId) { return tabs; } tabs.push({ userId: clientId.userId, name: clientId.name, initiator: index <= indexClientId }); return tabs; }, []); client.emit(SocketIoEvent.WEBRTC_START, {clients: peerClients, roomId: roomId}); });*/ } /** permit to share user position ** users position will send in event 'user-position' ** The data sent is an array with information for each user : [ { userId: , roomId: , position: { x : , y : , direction: } }, ... ] **/ //disconnect user 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.send(serverToClientMessage1.serializeBinary().buffer, true); } const webrtcDisconnectMessage2 = new WebRtcDisconnectMessage(); webrtcDisconnectMessage2.setUserid(otherUser.id); const serverToClientMessage2 = new ServerToClientMessage(); serverToClientMessage2.setWebrtcdisconnectmessage(webrtcDisconnectMessage2); if (!user.socket.disconnecting) { user.socket.send(serverToClientMessage2.serializeBinary().buffer, true); } } //disconnect webrtc room /*if(!Client.webRtcRoomId){ return; }*/ //Client.leave(Client.webRtcRoomId); //delete Client.webRtcRoomId; } private emitPlayGlobalMessage(client: ExSocketInterface, playglobalmessage: PlayGlobalMessage) { try { const world = this.Worlds.get(client.roomId); if (!world) { console.error("In emitPlayGlobalMessage, could not find world with id '", client.roomId, "'"); return; } const serverToClientMessage = new ServerToClientMessage(); serverToClientMessage.setPlayglobalmessage(playglobalmessage); for (const [id, user] of world.getUsers().entries()) { user.socket.send(serverToClientMessage.serializeBinary().buffer, true); } } catch (e) { console.error('An error occurred on "emitPlayGlobalMessage" event'); console.error(e); } } public getWorlds(): Map { return this.Worlds; } }