Merge branch 'master' of https://github.com/thecodingmachine/workadventure into feature/back-players-proximity

back/src/Controller/AuthenticateController.ts

@@ -0,0 +1,28 @@
+import {Application, Request, Response} from "express";
+import Jwt, {JsonWebTokenError} from "jsonwebtoken";
+import {BAD_REQUEST, OK} from "http-status-codes";
+import {SECRET_KEY} from "../Enum/EnvironmentVariable";
+
+export class AuthenticateController{
+    App : Application;
+
+    constructor(App : Application) {
+        this.App = App;
+        this.login();
+    }
+
+    //permit to login on application. Return token to connect on Websocket IO.
+    login(){
+        this.App.post("/login", (req: Request, res: Response) => {
+            let param = req.body;
+            if(!param.email){
+                return res.status(BAD_REQUEST).send({
+                    message: "email parameter is empty"
+                });
+            }
+            //TODO check user email for The Coding Machine game
+            let token = Jwt.sign({email: param.email}, SECRET_KEY, {expiresIn: '24h'});
+            return res.status(OK).send({token: token});
+        });
+    }
+}

back/src/Controller/IoSocketController.ts

@@ -1,36 +1,80 @@
 import socketIO = require('socket.io');
 import {Socket} from "socket.io";
 import * as http from "http";
-import {MessageUserPosition} from "@Model/Websocket/MessageUserPosition";
+import {MessageUserPosition} 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} from "../Enum/EnvironmentVariable"; //TODO fix import by "_Enum/..."
 
 export class IoSocketController{
     Io: socketIO.Server;
     constructor(server : http.Server) {
         this.Io = socketIO(server);
+
+        // Authentication with token. it will be decoded and stored in the socket.
+        this.Io.use( (socket: Socket, next) => {
+            if (!socket.handshake.query || !socket.handshake.query.token) {
+                return next(new Error('Authentication error'));
+            }
+            Jwt.verify(socket.handshake.query.token, SECRET_KEY, (err: JsonWebTokenError, tokenDecoded: object) => {
+                if (err) {
+                    return next(new Error('Authentication error'));
+                }
+                (socket as ExSocketInterface).token = tokenDecoded;
+                next();
+            });
+        });
+
         this.ioConnection();
     }
 
     ioConnection() {
         this.Io.on('connection',  (socket: Socket) => {
-            //TODO check token access
-
             /*join-rom event permit to join one room.
                 message :
                     userId : user identification
                     roomId: room identification
-                    positionXUser: user x position map
-                    positionYUser: user y position on map
+                    position: position of user in map
+                        x: user x position on map
+                        y: user y position on map
             */
-            socket.on('join-room', (message : MessageUserPosition) => {
-                socket.join(message.roomId);
+
+            socket.on('join-room', (message : string) => {
+                let messageUserPosition = this.hydrateMessageReceive(message);
+                if(messageUserPosition instanceof Error){
+                    return socket.emit("message-error", JSON.stringify({message: messageUserPosition.message}))
+                }
+                //join user in room
+                socket.join(messageUserPosition.roomId);
                 // sending to all clients in room except sender
-                socket.to(message.roomId).emit('join-room', message.toString());
+                this.saveUserPosition((socket as ExSocketInterface), messageUserPosition);
+                socket.to(messageUserPosition.roomId).emit('join-room', messageUserPosition.toString());
             });
 
-            socket.on('user-position', (message : MessageUserPosition) => {
+            socket.on('user-position', (message : string) => {
+                let messageUserPosition = this.hydrateMessageReceive(message);
+                if(messageUserPosition instanceof Error){
+                    return socket.emit("message-error", JSON.stringify({message: messageUserPosition.message}));
+                }
                 // sending to all clients in room except sender
-                socket.to(message.roomId).emit('join-room', message.toString());
+                this.saveUserPosition((socket as ExSocketInterface), messageUserPosition);
+                socket.to(messageUserPosition.roomId).emit('join-room', messageUserPosition.toString());
             });
         });
     }
-}
+
+    //permit to save user position in socket
+    saveUserPosition(socket : ExSocketInterface, message : MessageUserPosition){
+        socket.position = message.position;
+    }
+
+    //Hydrate and manage error
+    hydrateMessageReceive(message : string) : MessageUserPosition | Error{
+        try {
+            return new MessageUserPosition(message);
+        }catch (err) {
+            //TODO log error
+            return new Error(err);
+        }
+    }
+}