workadventure/back/src/Controller/IoSocketController.ts
2020-09-28 18:52:54 +02:00

785 lines
31 KiB
TypeScript

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 {uuid} from 'uuidv4';
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
} from "../Messages/generated/messages_pb";
import {UserMovesMessage} from "../Messages/generated/messages_pb";
import Direction = PositionMessage.Direction;
import {ProtobufUtils} from "../Model/Websocket/ProtobufUtils";
import {App, TemplatedApp, WebSocket} from "uWebSockets.js"
enum SocketIoEvent {
CONNECTION = "connection",
DISCONNECT = "disconnect",
JOIN_ROOM = "join-room", // bi-directional
USER_POSITION = "user-position", // From client to server
USER_MOVED = "user-moved", // From server to client
USER_LEFT = "user-left", // From server to client
WEBRTC_SIGNAL = "webrtc-signal",
WEBRTC_SCREEN_SHARING_SIGNAL = "webrtc-screen-sharing-signal",
WEBRTC_START = "webrtc-start",
WEBRTC_DISCONNECT = "webrtc-disconect",
MESSAGE_ERROR = "message-error",
GROUP_CREATE_UPDATE = "group-create-update",
GROUP_DELETE = "group-delete",
SET_PLAYER_DETAILS = "set-player-details",
ITEM_EVENT = 'item-event',
SET_SILENT = "set_silent", // Set or unset the silent mode for this user.
SET_VIEWPORT = "set-viewport",
BATCH = "batch",
}
function emitInBatch(socket: ExSocketInterface, payload: SubMessage): void {
if (socket.disconnecting) {
return;
}
socket.batchedMessages.addPayload(payload);
if (socket.batchTimeout === null) {
socket.batchTimeout = setTimeout(() => {
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<string, World> = new Map<string, World>();
private sockets: Map<number, ExSocketInterface> = new Map<number, ExSocketInterface>();
private nbClientsGauge: Gauge<string>;
private nbClientsPerRoomGauge: Gauge<string>;
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;
}
if (typeof((token as TokenInterface).name) !== '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 authenticate(ws: WebSocket) {
//console.log(socket.handshake.query.token);
/*if (!socket.handshake.query || !socket.handshake.query.token) {
console.error('An authentication error happened, a user tried to connect without a token.');
return next(new Error('Authentication error'));
}
if(socket.handshake.query.token === 'test'){
if (ALLOW_ARTILLERY) {
(socket as ExSocketInterface).token = socket.handshake.query.token;
(socket as ExSocketInterface).userId = this.nextUserId;
(socket as ExSocketInterface).userUuid = uuid();
this.nextUserId++;
(socket as ExSocketInterface).isArtillery = true;
console.log((socket as ExSocketInterface).userId);
next();
return;
} else {
console.warn("In order to perform a load-testing test on this environment, you must set the ALLOW_ARTILLERY environment variable to 'true'");
next();
}
}
(socket as ExSocketInterface).isArtillery = false;
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'));
}
Jwt.verify(socket.handshake.query.token, SECRET_KEY, (err: JsonWebTokenError, tokenDecoded: object) => {
if (err) {
console.error('An authentication error happened, invalid JsonWebToken.', err);
return next(new Error('Authentication error'));
}
if (!this.isValidToken(tokenDecoded)) {
return next(new Error('Authentication error, invalid token structure'));
}
(socket as ExSocketInterface).token = socket.handshake.query.token;
(socket as ExSocketInterface).userId = this.nextUserId;
(socket as ExSocketInterface).userUuid = tokenDecoded.userUuid;
this.nextUserId++;
next();
});*/
const socket = ws as ExSocketInterface;
socket.userId = this.nextUserId;
this.nextUserId++;
}
ioConnection() {
this.app.ws('/*', {
/* Options */
//compression: uWS.SHARED_COMPRESSOR,
maxPayloadLength: 16 * 1024 * 1024,
idleTimeout: 10,
/* Handlers */
open: (ws) => {
this.authenticate(ws);
// TODO: close if authenticate is ko
const client : ExSocketInterface = ws as ExSocketInterface;
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);
}
/* 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);
//leave webrtc room
//socket.leave(Client.webRtcRoomId);
//delete all socket information
delete Client.webRtcRoomId;
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);
}
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);
//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();
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: unknown){
if (!isWebRtcSignalMessageInterface(data)) {
socket.emit(SocketIoEvent.MESSAGE_ERROR, {message: 'Invalid WEBRTC_SIGNAL message.'});
console.warn('Invalid WEBRTC_SIGNAL message received: ', data);
return;
}
//send only at user
const client = this.sockets.get(data.receiverId);
if (client === undefined) {
console.warn("While exchanging a WebRTC signal: client with id ", data.receiverId, " does not exist. This might be a race condition.");
return;
}
return client.emit(SocketIoEvent.WEBRTC_SIGNAL, {
userId: socket.userId,
signal: data.signal
});
}
emitScreenSharing(socket: ExSocketInterface, data: unknown){
if (!isWebRtcSignalMessageInterface(data)) {
socket.emit(SocketIoEvent.MESSAGE_ERROR, {message: 'Invalid WEBRTC_SCREEN_SHARING message.'});
console.warn('Invalid WEBRTC_SCREEN_SHARING message received: ', data);
return;
}
//send only at user
const client = this.sockets.get(data.receiverId);
if (client === undefined) {
console.warn("While exchanging a WEBRTC_SCREEN_SHARING signal: client with id ", data.receiverId, " does not exist. This might be a race condition.");
return;
}
return client.emit(SocketIoEvent.WEBRTC_SCREEN_SHARING_SIGNAL, {
userId: socket.userId,
signal: data.signal
});
}
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: number, group: Group) => {
this.connectedUser(user1, group);
}, (user1: number, 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(socket: Socket, groupId: number): void {
const groupDeleteMessage = new GroupDeleteMessage();
groupDeleteMessage.setGroupid(groupId);
const subMessage = new SubMessage();
subMessage.setGroupdeletemessage(groupDeleteMessage);
const client : ExSocketInterface = socket as ExSocketInterface;
emitInBatch(client, subMessage);
}
private emitUserLeftEvent(socket: Socket, userId: number): void {
const userLeftMessage = new UserLeftMessage();
userLeftMessage.setUserid(userId);
const subMessage = new SubMessage();
subMessage.setUserleftmessage(userLeftMessage);
const client : ExSocketInterface = socket as ExSocketInterface;
emitInBatch(client, subMessage);
}
/**
*
* @param socket
* @param roomId
*/
joinWebRtcRoom(socket: ExSocketInterface, roomId: string) {
// TODO: REBUILD THIS
return;
if (socket.webRtcRoomId === roomId) {
return;
}
socket.join(roomId);
socket.webRtcRoomId = roomId;
//if two persons in room share
if (this.Io.sockets.adapter.rooms[roomId].length < 2 /*|| this.Io.sockets.adapter.rooms[roomId].length >= 4*/) {
return;
}
// TODO: scanning all sockets is maybe not the most efficient
const clients: Array<ExSocketInterface> = (Object.values(this.Io.sockets.sockets) as Array<ExSocketInterface>)
.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<UserInGroupInterface>, 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: <string>,
roomId: <string>,
position: {
x : <number>,
y : <number>,
direction: <string>
}
},
...
]
**/
//connected user
connectedUser(userId: number, group: Group) {
/*let Client = this.sockets.get(userId);
if (Client === undefined) {
return;
}*/
const Client = this.searchClientByIdOrFail(userId);
this.joinWebRtcRoom(Client, "webrtcroom"+group.getId());
}
//disconnect user
disConnectedUser(userId: number, group: Group) {
// TODO: rebuild this
return;
const Client = this.searchClientByIdOrFail(userId);
Client.to("webrtcroom"+group.getId()).emit(SocketIoEvent.WEBRTC_DISCONNECT, {
userId: userId
});
// 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 user of group.getUsers()) {
Client.emit(SocketIoEvent.WEBRTC_DISCONNECT, {
userId: user.id
});
}
//disconnect webrtc room
if(!Client.webRtcRoomId){
return;
}
Client.leave(Client.webRtcRoomId);
delete Client.webRtcRoomId;
}
public getWorlds(): Map<string, World> {
return this.Worlds;
}
}