638 lines
25 KiB
TypeScript
638 lines
25 KiB
TypeScript
import {GameRoom} from "../Model/GameRoom";
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import {ExSocketInterface} from "../Model/Websocket/ExSocketInterface";
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import {
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GroupDeleteMessage,
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GroupUpdateMessage,
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ItemEventMessage,
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ItemStateMessage,
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PlayGlobalMessage,
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PointMessage,
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PositionMessage,
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RoomJoinedMessage,
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ServerToClientMessage,
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SetPlayerDetailsMessage,
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SilentMessage,
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SubMessage,
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ReportPlayerMessage,
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UserJoinedMessage, UserLeftMessage,
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UserMovedMessage,
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UserMovesMessage,
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ViewportMessage, WebRtcDisconnectMessage,
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WebRtcSignalToClientMessage,
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WebRtcSignalToServerMessage, WebRtcStartMessage, QueryJitsiJwtMessage, SendJitsiJwtMessage
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} from "../Messages/generated/messages_pb";
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import {PointInterface} from "../Model/Websocket/PointInterface";
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import {User} from "../Model/User";
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import {ProtobufUtils} from "../Model/Websocket/ProtobufUtils";
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import {Group} from "../Model/Group";
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import {cpuTracker} from "./CpuTracker";
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import {isSetPlayerDetailsMessage} from "../Model/Websocket/SetPlayerDetailsMessage";
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import {GROUP_RADIUS, JITSI_ISS, MINIMUM_DISTANCE, SECRET_JITSI_KEY} from "../Enum/EnvironmentVariable";
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import {Movable} from "../Model/Movable";
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import {PositionInterface} from "../Model/PositionInterface";
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import {adminApi} from "./AdminApi";
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import Direction = PositionMessage.Direction;
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import {Gauge} from "prom-client";
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import {emitError, emitInBatch} from "./IoSocketHelpers";
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import Jwt from "jsonwebtoken";
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import {JITSI_URL} from "../Enum/EnvironmentVariable";
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class SocketManager {
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private Worlds: Map<string, GameRoom> = new Map<string, GameRoom>();
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private sockets: Map<number, ExSocketInterface> = new Map<number, ExSocketInterface>();
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private nbClientsGauge: Gauge<string>;
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private nbClientsPerRoomGauge: Gauge<string>;
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constructor() {
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this.nbClientsGauge = new Gauge({
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name: 'workadventure_nb_sockets',
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help: 'Number of connected sockets',
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labelNames: [ ]
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});
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this.nbClientsPerRoomGauge = new Gauge({
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name: 'workadventure_nb_clients_per_room',
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help: 'Number of clients per room',
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labelNames: [ 'room' ]
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});
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}
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handleJoinRoom(client: ExSocketInterface): void {
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const position = client.position;
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const viewport = client.viewport;
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try {
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this.sockets.set(client.userId, client); //todo: should this be at the end of the function?
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this.nbClientsGauge.inc();
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// Let's log server load when a user joins
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console.log(new Date().toISOString() + ' A user joined (', socketManager.sockets.size, ' connected users)');
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//join new previous room
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const gameRoom = this.joinRoom(client, position);
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const things = gameRoom.setViewport(client, viewport);
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const roomJoinedMessage = new RoomJoinedMessage();
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for (const thing of things) {
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if (thing instanceof User) {
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const player: ExSocketInterface|undefined = this.sockets.get(thing.id);
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if (player === undefined) {
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console.warn('Something went wrong. The World contains a user "'+thing.id+"' but this user does not exist in the sockets list!");
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continue;
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}
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const userJoinedMessage = new UserJoinedMessage();
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userJoinedMessage.setUserid(thing.id);
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userJoinedMessage.setName(player.name);
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userJoinedMessage.setCharacterlayersList(player.characterLayers);
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userJoinedMessage.setPosition(ProtobufUtils.toPositionMessage(player.position));
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roomJoinedMessage.addUser(userJoinedMessage);
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} else if (thing instanceof Group) {
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const groupUpdateMessage = new GroupUpdateMessage();
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groupUpdateMessage.setGroupid(thing.getId());
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groupUpdateMessage.setPosition(ProtobufUtils.toPointMessage(thing.getPosition()));
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roomJoinedMessage.addGroup(groupUpdateMessage);
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} else {
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console.error("Unexpected type for Movable returned by setViewport");
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}
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}
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for (const [itemId, item] of gameRoom.getItemsState().entries()) {
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const itemStateMessage = new ItemStateMessage();
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itemStateMessage.setItemid(itemId);
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itemStateMessage.setStatejson(JSON.stringify(item));
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roomJoinedMessage.addItem(itemStateMessage);
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}
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roomJoinedMessage.setCurrentuserid(client.userId);
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const serverToClientMessage = new ServerToClientMessage();
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serverToClientMessage.setRoomjoinedmessage(roomJoinedMessage);
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if (!client.disconnecting) {
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client.send(serverToClientMessage.serializeBinary().buffer, true);
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}
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} catch (e) {
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console.error('An error occurred on "join_room" event');
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console.error(e);
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}
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}
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handleViewport(client: ExSocketInterface, viewportMessage: ViewportMessage) {
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try {
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const viewport = viewportMessage.toObject();
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client.viewport = viewport;
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const world = this.Worlds.get(client.roomId);
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if (!world) {
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console.error("In SET_VIEWPORT, could not find world with id '", client.roomId, "'");
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return;
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}
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world.setViewport(client, client.viewport);
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} catch (e) {
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console.error('An error occurred on "SET_VIEWPORT" event');
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console.error(e);
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}
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}
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handleUserMovesMessage(client: ExSocketInterface, userMovesMessage: UserMovesMessage) {
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try {
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const userMoves = userMovesMessage.toObject();
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// If CPU is high, let's drop messages of users moving (we will only dispatch the final position)
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if (cpuTracker.isOverHeating() && userMoves.position?.moving === true) {
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return;
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}
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const position = userMoves.position;
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if (position === undefined) {
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throw new Error('Position not found in message');
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}
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const viewport = userMoves.viewport;
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if (viewport === undefined) {
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throw new Error('Viewport not found in message');
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}
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let direction: string;
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switch (position.direction) {
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case Direction.UP:
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direction = 'up';
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break;
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case Direction.DOWN:
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direction = 'down';
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break;
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case Direction.LEFT:
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direction = 'left';
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break;
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case Direction.RIGHT:
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direction = 'right';
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break;
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default:
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throw new Error("Unexpected direction");
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}
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// sending to all clients in room except sender
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client.position = {
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x: position.x,
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y: position.y,
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direction,
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moving: position.moving,
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};
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client.viewport = viewport;
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// update position in the world
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const world = this.Worlds.get(client.roomId);
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if (!world) {
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console.error("In USER_POSITION, could not find world with id '", client.roomId, "'");
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return;
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}
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world.updatePosition(client, client.position);
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world.setViewport(client, client.viewport);
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} catch (e) {
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console.error('An error occurred on "user_position" event');
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console.error(e);
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}
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}
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// Useless now, will be useful again if we allow editing details in game
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handleSetPlayerDetails(client: ExSocketInterface, playerDetailsMessage: SetPlayerDetailsMessage) {
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const playerDetails = {
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name: playerDetailsMessage.getName(),
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characterLayers: playerDetailsMessage.getCharacterlayersList()
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};
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//console.log(SocketIoEvent.SET_PLAYER_DETAILS, playerDetails);
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if (!isSetPlayerDetailsMessage(playerDetails)) {
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emitError(client, 'Invalid SET_PLAYER_DETAILS message received: ');
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return;
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}
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client.name = playerDetails.name;
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client.characterLayers = playerDetails.characterLayers;
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}
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handleSilentMessage(client: ExSocketInterface, silentMessage: SilentMessage) {
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try {
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// update position in the world
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const world = this.Worlds.get(client.roomId);
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if (!world) {
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console.error("In handleSilentMessage, could not find world with id '", client.roomId, "'");
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return;
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}
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world.setSilent(client, silentMessage.getSilent());
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} catch (e) {
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console.error('An error occurred on "handleSilentMessage"');
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console.error(e);
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}
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}
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handleItemEvent(ws: ExSocketInterface, itemEventMessage: ItemEventMessage) {
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const itemEvent = ProtobufUtils.toItemEvent(itemEventMessage);
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try {
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const world = this.Worlds.get(ws.roomId);
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if (!world) {
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console.error("Could not find world with id '", ws.roomId, "'");
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return;
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}
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const subMessage = new SubMessage();
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subMessage.setItemeventmessage(itemEventMessage);
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// Let's send the event without using the SocketIO room.
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for (const user of world.getUsers().values()) {
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const client = this.searchClientByIdOrFail(user.id);
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//client.emit(SocketIoEvent.ITEM_EVENT, itemEvent);
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emitInBatch(client, subMessage);
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}
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world.setItemState(itemEvent.itemId, itemEvent.state);
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} catch (e) {
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console.error('An error occurred on "item_event"');
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console.error(e);
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}
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}
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async handleReportMessage(client: ExSocketInterface, reportPlayerMessage: ReportPlayerMessage) {
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try {
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const reportedSocket = this.sockets.get(reportPlayerMessage.getReporteduserid());
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if (!reportedSocket) {
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throw 'reported socket user not found';
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}
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//TODO report user on admin application
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await adminApi.reportPlayer(reportedSocket.userUuid, reportPlayerMessage.getReportcomment(), client.userUuid)
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} catch (e) {
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console.error('An error occurred on "handleReportMessage"');
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console.error(e);
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}
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}
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emitVideo(socket: ExSocketInterface, data: WebRtcSignalToServerMessage): void {
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//send only at user
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const client = this.sockets.get(data.getReceiverid());
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if (client === undefined) {
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console.warn("While exchanging a WebRTC signal: client with id ", data.getReceiverid(), " does not exist. This might be a race condition.");
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return;
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}
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const webrtcSignalToClient = new WebRtcSignalToClientMessage();
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webrtcSignalToClient.setUserid(socket.userId);
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webrtcSignalToClient.setSignal(data.getSignal());
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const serverToClientMessage = new ServerToClientMessage();
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serverToClientMessage.setWebrtcsignaltoclientmessage(webrtcSignalToClient);
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if (!client.disconnecting) {
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client.send(serverToClientMessage.serializeBinary().buffer, true);
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}
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}
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emitScreenSharing(socket: ExSocketInterface, data: WebRtcSignalToServerMessage): void {
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//send only at user
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const client = this.sockets.get(data.getReceiverid());
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if (client === undefined) {
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console.warn("While exchanging a WEBRTC_SCREEN_SHARING signal: client with id ", data.getReceiverid(), " does not exist. This might be a race condition.");
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return;
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}
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const webrtcSignalToClient = new WebRtcSignalToClientMessage();
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webrtcSignalToClient.setUserid(socket.userId);
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webrtcSignalToClient.setSignal(data.getSignal());
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const serverToClientMessage = new ServerToClientMessage();
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serverToClientMessage.setWebrtcscreensharingsignaltoclientmessage(webrtcSignalToClient);
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if (!client.disconnecting) {
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client.send(serverToClientMessage.serializeBinary().buffer, true);
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}
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}
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private searchClientByIdOrFail(userId: number): ExSocketInterface {
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const client: ExSocketInterface|undefined = this.sockets.get(userId);
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if (client === undefined) {
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throw new Error("Could not find user with id " + userId);
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}
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return client;
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}
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leaveRoom(Client : ExSocketInterface){
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// leave previous room and world
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if(Client.roomId){
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try {
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//user leave previous world
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const world: GameRoom | undefined = this.Worlds.get(Client.roomId);
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if (world) {
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world.leave(Client);
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if (world.isEmpty()) {
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this.Worlds.delete(Client.roomId);
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}
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}
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//user leave previous room
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//Client.leave(Client.roomId);
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} finally {
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this.nbClientsPerRoomGauge.dec({ room: Client.roomId });
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//delete Client.roomId;
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this.sockets.delete(Client.userId);
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// Let's log server load when a user leaves
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this.nbClientsGauge.dec();
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console.log('A user left (', this.sockets.size, ' connected users)');
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}
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}
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}
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async getOrCreateRoom(roomId: string): Promise<GameRoom> {
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//check and create new world for a room
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let world = this.Worlds.get(roomId)
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if(world === undefined){
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world = new GameRoom(
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roomId,
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(user: User, group: Group) => this.joinWebRtcRoom(user, group),
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(user: User, group: Group) => this.disConnectedUser(user, group),
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MINIMUM_DISTANCE,
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GROUP_RADIUS,
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(thing: Movable, listener: User) => this.onRoomEnter(thing, listener),
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(thing: Movable, position:PositionInterface, listener:User) => this.onClientMove(thing, position, listener),
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(thing: Movable, listener:User) => this.onClientLeave(thing, listener)
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);
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if (!world.anonymous) {
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const data = await adminApi.fetchMapDetails(world.organizationSlug, world.worldSlug, world.roomSlug)
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world.tags = data.tags
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world.policyType = Number(data.policy_type)
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}
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this.Worlds.set(roomId, world);
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}
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return Promise.resolve(world)
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}
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private joinRoom(client : ExSocketInterface, position: PointInterface): GameRoom {
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const roomId = client.roomId;
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//join user in room
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this.nbClientsPerRoomGauge.inc({ room: roomId });
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client.position = position;
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const world = this.Worlds.get(roomId)
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if(world === undefined){
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throw new Error('Could not find room for ID: '+client.roomId)
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}
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// Dispatch groups position to newly connected user
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world.getGroups().forEach((group: Group) => {
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this.emitCreateUpdateGroupEvent(client, group);
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});
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//join world
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world.join(client, client.position);
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return world;
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}
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private onRoomEnter(thing: Movable, listener: User) {
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const clientListener = this.searchClientByIdOrFail(listener.id);
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if (thing instanceof User) {
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const clientUser = this.searchClientByIdOrFail(thing.id);
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const userJoinedMessage = new UserJoinedMessage();
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if (!Number.isInteger(clientUser.userId)) {
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throw new Error('clientUser.userId is not an integer '+clientUser.userId);
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}
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userJoinedMessage.setUserid(clientUser.userId);
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userJoinedMessage.setName(clientUser.name);
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userJoinedMessage.setCharacterlayersList(clientUser.characterLayers);
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userJoinedMessage.setPosition(ProtobufUtils.toPositionMessage(clientUser.position));
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const subMessage = new SubMessage();
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subMessage.setUserjoinedmessage(userJoinedMessage);
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emitInBatch(clientListener, subMessage);
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} else if (thing instanceof Group) {
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this.emitCreateUpdateGroupEvent(clientListener, thing);
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} else {
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console.error('Unexpected type for Movable.');
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}
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}
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private onClientMove(thing: Movable, position:PositionInterface, listener:User): void {
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const clientListener = this.searchClientByIdOrFail(listener.id);
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if (thing instanceof User) {
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const clientUser = this.searchClientByIdOrFail(thing.id);
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const userMovedMessage = new UserMovedMessage();
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userMovedMessage.setUserid(clientUser.userId);
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userMovedMessage.setPosition(ProtobufUtils.toPositionMessage(clientUser.position));
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const subMessage = new SubMessage();
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subMessage.setUsermovedmessage(userMovedMessage);
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clientListener.emitInBatch(subMessage);
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//console.log("Sending USER_MOVED event");
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} else if (thing instanceof Group) {
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this.emitCreateUpdateGroupEvent(clientListener, thing);
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} else {
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console.error('Unexpected type for Movable.');
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}
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}
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private onClientLeave(thing: Movable, listener:User) {
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const clientListener = this.searchClientByIdOrFail(listener.id);
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if (thing instanceof User) {
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const clientUser = this.searchClientByIdOrFail(thing.id);
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this.emitUserLeftEvent(clientListener, clientUser.userId);
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} else if (thing instanceof Group) {
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this.emitDeleteGroupEvent(clientListener, thing.getId());
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} else {
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console.error('Unexpected type for Movable.');
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}
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}
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private emitCreateUpdateGroupEvent(client: ExSocketInterface, group: Group): void {
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const position = group.getPosition();
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const pointMessage = new PointMessage();
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pointMessage.setX(Math.floor(position.x));
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pointMessage.setY(Math.floor(position.y));
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const groupUpdateMessage = new GroupUpdateMessage();
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groupUpdateMessage.setGroupid(group.getId());
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groupUpdateMessage.setPosition(pointMessage);
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const subMessage = new SubMessage();
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subMessage.setGroupupdatemessage(groupUpdateMessage);
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emitInBatch(client, subMessage);
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//socket.emit(SocketIoEvent.GROUP_CREATE_UPDATE, groupUpdateMessage.serializeBinary().buffer);
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}
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private emitDeleteGroupEvent(client: ExSocketInterface, groupId: number): void {
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const groupDeleteMessage = new GroupDeleteMessage();
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groupDeleteMessage.setGroupid(groupId);
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const subMessage = new SubMessage();
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subMessage.setGroupdeletemessage(groupDeleteMessage);
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emitInBatch(client, subMessage);
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}
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private emitUserLeftEvent(client: ExSocketInterface, userId: number): void {
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const userLeftMessage = new UserLeftMessage();
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userLeftMessage.setUserid(userId);
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const subMessage = new SubMessage();
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subMessage.setUserleftmessage(userLeftMessage);
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emitInBatch(client, subMessage);
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}
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private joinWebRtcRoom(user: User, group: Group) {
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/*const roomId: string = "webrtcroom"+group.getId();
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if (user.socket.webRtcRoomId === roomId) {
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return;
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}*/
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for (const otherUser of group.getUsers()) {
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if (user === otherUser) {
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continue;
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}
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// Let's send 2 messages: one to the user joining the group and one to the other user
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const webrtcStartMessage1 = new WebRtcStartMessage();
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webrtcStartMessage1.setUserid(otherUser.id);
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webrtcStartMessage1.setName(otherUser.socket.name);
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webrtcStartMessage1.setInitiator(true);
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const serverToClientMessage1 = new ServerToClientMessage();
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serverToClientMessage1.setWebrtcstartmessage(webrtcStartMessage1);
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|
|
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)
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
//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.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);
|
|
}
|
|
}
|
|
}
|
|
|
|
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<string, GameRoom> {
|
|
return this.Worlds;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param token
|
|
*/
|
|
searchClientByUuid(uuid: string): ExSocketInterface | null {
|
|
for(const socket of this.sockets.values()){
|
|
if(socket.userUuid === uuid){
|
|
return socket;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
|
|
public handleQueryJitsiJwtMessage(client: ExSocketInterface, 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 = client.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);
|
|
|
|
client.send(serverToClientMessage.serializeBinary().buffer, true);
|
|
}
|
|
}
|
|
|
|
export const socketManager = new SocketManager();
|