Initial commit

backend/src/Express/ExpressManager.js

@@ -0,0 +1,68 @@
+const express = require("express");
+const sessions = require("express-session");
+const bp = require("body-parser");
+const path = require("path");
+const DataBaseManager = require("../Database/DataBaseManager");
+const AccountRoute = require("./Routes/AccountRoute");
+const DashboardRoute = require("./Routes/DashboardRoute");
+
+class ExpressManager{
+    /**@param {DataBaseManager} dbManager*/
+    constructor(dbManager){
+        this.db = dbManager;
+
+        this.app = express();
+
+        this.sessionMiddleware = sessions({
+            secret: process.env.SESSION_KEY,
+            saveUninitialized: false,
+            resave: false,
+            cookie: {maxAge: 24 * 60 * 60 * 1000}
+        });
+
+        this.app.use((req, res, next) => { this.logger(req, res, next) });
+        this.app.use(this.sessionMiddleware);
+        this.app.use((req, res, next) => { this.needAuth(req, res, next) });
+        this.app.use(bp.urlencoded({extended: false}));
+        this.app.use(express.json());
+        this.app.use(bp.json());
+        this.app.use(express.static(path.join(__dirname, "./../../../frontend")));
+
+        // Routen wo man für Angemeldet sein muss
+        this.authRoutes = [
+            "/api/dashboard",
+            "/dashboard"
+        ];
+
+        // Routen Einbinden
+        this.app.use("/api/account/", new AccountRoute(this.db).router);
+        this.app.use("/api/dashboard/", new DashboardRoute(this.db).router);
+    }
+
+    /**@param {express.Request} req @param {express.Response} res @param {express.NextFunction} next*/
+    logger(req, res, next){
+        const date = new Date();
+        console.log(`${date.toTimeString().slice(0, 8)} | ${req.method} | ${req.url}`);
+        next();
+    }
+
+    /**@param {express.Request} req @param {express.Response} res @param {express.NextFunction} next*/
+    needAuth(req, res, next){
+        let isProtectedRoute = false;
+        this.authRoutes.forEach(route => {
+            if(req.url.startsWith(route)) isProtectedRoute = true;
+        });
+
+        // Geht zum Login wenn User versucht Routen aufzurufen wofür man angemeldet sein muss
+        if(isProtectedRoute && !req.session.user?.isSet) return res.redirect("/login");
+
+        // Geht zum Dashboard wenn der Nutzer versucht sich zu registrieren oder einzuloggen wenn er angemeldet ist
+        if(req.session.user?.isSet && (req.url.startsWith("/login") || req.url.startsWith("/register"))){
+            return res.redirect("/dashboard");
+        }
+
+        next();
+    }
+}
+
+module.exports = ExpressManager;