Add authenticate

- Create new controller authenticate with login root..
 - Update and manage error message socket io.
 - Create enum for environment variables

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

@@ -1,11 +1,10 @@
 import socketIO = require('socket.io');
 import {Socket} from "socket.io";
 import * as http from "http";
-import {MessageUserPosition} from "../Model/Websocket/MessageUserPosition"; //TODO fix to use "_Model/.."
-import {ExSocketInterface} from "../Model/Websocket/ExSocketInterface"; //TODO fix to use "_Model/.."
+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";
-
-const SECRET_KEY = process.env.SECRET_KEY || "THECODINGMACHINE_SECRET_KEY";
+import {SECRET_KEY} from "../Enum/EnvironmentVariable"; //TODO fix import by "_Enum/..."
 
 export class IoSocketController{
     Io: socketIO.Server;
@@ -39,8 +38,13 @@ export class IoSocketController{
                         x: user x position on map
                         y: user y position on map
             */
+
             socket.on('join-room', (message : string) => {
-                let messageUserPosition = new MessageUserPosition(message);
+                let messageUserPosition = this.hydrateMessageReceive(message);
+                if(!messageUserPosition){
+                    return socket.emit("message-error", JSON.stringify({message: "Error format message"}))
+                }
+                //join user in room
                 socket.join(messageUserPosition.roomId);
                 // sending to all clients in room except sender
                 this.saveUserPosition((socket as ExSocketInterface), messageUserPosition);
@@ -48,7 +52,10 @@ export class IoSocketController{
             });
 
             socket.on('user-position', (message : string) => {
-                let messageUserPosition = new MessageUserPosition(message);
+                let messageUserPosition = this.hydrateMessageReceive(message);
+                if(!messageUserPosition){
+                    return socket.emit("message-error", JSON.stringify({message: "Error format message"}));
+                }
                 // sending to all clients in room except sender
                 this.saveUserPosition((socket as ExSocketInterface), messageUserPosition);
                 socket.to(messageUserPosition.roomId).emit('join-room', messageUserPosition.toString());
@@ -60,4 +67,14 @@ export class IoSocketController{
     saveUserPosition(socket : ExSocketInterface, message : MessageUserPosition){
         socket.position = message.position;
     }
+
+    //Hydrate and manage error
+    hydrateMessageReceive(message : string) : MessageUserPosition | null{
+        try {
+            return new MessageUserPosition(message);
+        }catch (err) {
+            //TODO log error
+            return null;
+        }
+    }
 }