Einfügen eines centralen layouts getestet mit der serial-number.ejs und layout.ejs

app.js

@@ -6,6 +6,7 @@ const helmet = require("helmet");
 const mysql = require("mysql2/promise");
 const fs = require("fs");
 const path = require("path");
+const expressLayouts = require("express-ejs-layouts");
 
 // ✅ Verschlüsselte Config
 const { configExists, saveConfig } = require("./config-manager");
@@ -30,6 +31,39 @@ const authRoutes = require("./routes/auth.routes");
 
 const app = express();
 
+/* ===============================
+   ✅ Seriennummer / Trial Konfiguration
+================================ */
+const TRIAL_DAYS = 30;
+
+/* ===============================
+   ✅ Seriennummer Helper Funktionen
+================================ */
+function normalizeSerial(input) {
+  return (input || "")
+    .toUpperCase()
+    .replace(/[^A-Z0-9-]/g, "")
+    .trim();
+}
+
+// Format: AAAAA-AAAAA-AAAAA-AAAAA
+function isValidSerialFormat(serial) {
+  return /^[A-Z0-9]{5}(-[A-Z0-9]{5}){3}$/.test(serial);
+}
+
+// Modulo-3 Check (Summe aller Zeichenwerte % 3 === 0)
+function passesModulo3(serial) {
+  const raw = serial.replace(/-/g, "");
+  let sum = 0;
+
+  for (const ch of raw) {
+    if (/[0-9]/.test(ch)) sum += parseInt(ch, 10);
+    else sum += ch.charCodeAt(0) - 55; // A=10
+  }
+
+  return sum % 3 === 0;
+}
+
 /* ===============================
    SETUP HTML
 ================================ */
@@ -118,11 +152,76 @@ app.use(flashMiddleware);
 app.use(express.static("public"));
 app.use("/uploads", express.static("uploads"));
 app.set("view engine", "ejs");
+app.use(expressLayouts);
+app.set("layout", "layout"); // verwendet views/layout.ejs
+
 app.use((req, res, next) => {
   res.locals.user = req.session.user || null;
   next();
 });
 
+/* ===============================
+   ✅ LICENSE/TRIAL GATE (NEU!)
+   - wenn keine Seriennummer: 30 Tage Trial
+   - danach nur noch /serial-number erreichbar
+================================ */
+app.use(async (req, res, next) => {
+  try {
+    // Setup muss immer erreichbar bleiben
+    if (req.path.startsWith("/setup")) return next();
+
+    // Login muss erreichbar bleiben
+    if (req.path === "/" || req.path.startsWith("/login")) return next();
+
+    // Seriennummer Seite muss immer erreichbar bleiben
+    if (req.path.startsWith("/serial-number")) return next();
+
+    // Nicht eingeloggt -> auth regelt das
+    if (!req.session?.user) return next();
+
+    // company_settings laden
+    const [rows] = await db.promise().query(
+      `SELECT id, serial_number, trial_started_at
+         FROM company_settings
+         ORDER BY id ASC
+         LIMIT 1`,
+    );
+
+    const settings = rows?.[0];
+
+    // ✅ Lizenz vorhanden -> erlaubt
+    if (settings?.serial_number) return next();
+
+    // ✅ wenn Trial noch nicht gestartet -> starten
+    if (settings?.id && !settings?.trial_started_at) {
+      await db
+        .promise()
+        .query(
+          `UPDATE company_settings SET trial_started_at = NOW() WHERE id = ?`,
+          [settings.id],
+        );
+      return next();
+    }
+
+    // Wenn settings fehlen -> durchlassen (damit Setup/Settings nicht kaputt gehen)
+    if (!settings?.trial_started_at) return next();
+
+    // ✅ Trial prüfen
+    const trialStart = new Date(settings.trial_started_at);
+    const now = new Date();
+
+    const diffDays = Math.floor((now - trialStart) / (1000 * 60 * 60 * 24));
+
+    if (diffDays < TRIAL_DAYS) return next();
+
+    // ❌ Trial abgelaufen -> alles blocken außer Seriennummer
+    return res.redirect("/serial-number");
+  } catch (err) {
+    console.error("❌ LicenseGate Fehler:", err.message);
+    return next(); // im Zweifel nicht blockieren
+  }
+});
+
 /* ===============================
    SETUP ROUTES
 ================================ */
@@ -181,7 +280,10 @@ app.use((req, res, next) => {
   next();
 });
 
-//Sprachen Route
+/* ===============================
+   Sprachen Route
+================================ */
+
 // ✅ i18n Middleware (Sprache pro Benutzer über Session)
 app.use((req, res, next) => {
   const lang = req.session.lang || "de"; // Standard: Deutsch
@@ -218,6 +320,141 @@ app.get("/lang/:lang", (req, res) => {
   });
 });
 
+/* ===============================
+   ✅ Seriennummer Seite (NEU!)
+================================ */
+
+// ✅ GET /serial-number
+app.get("/serial-number", async (req, res) => {
+  try {
+    if (!req.session?.user) return res.redirect("/");
+
+    const [rows] = await db.promise().query(
+      `SELECT serial_number, trial_started_at
+         FROM company_settings
+         ORDER BY id ASC
+         LIMIT 1`,
+    );
+
+    const settings = rows?.[0];
+
+    let trialInfo = null;
+
+    if (!settings?.serial_number && settings?.trial_started_at) {
+      const trialStart = new Date(settings.trial_started_at);
+      const now = new Date();
+      const diffDays = Math.floor((now - trialStart) / (1000 * 60 * 60 * 24));
+      const rest = Math.max(0, TRIAL_DAYS - diffDays);
+
+      trialInfo = `⚠️ Keine Seriennummer vorhanden. Testphase: noch ${rest} Tage.`;
+    }
+
+    return res.render("serial_number", {
+      user: req.session.user,
+      active: "serialnumber",
+      currentSerial: settings?.serial_number || "",
+      error: null,
+      success: null,
+      trialInfo,
+    });
+  } catch (err) {
+    console.error(err);
+    return res.status(500).send("Interner Serverfehler");
+  }
+});
+
+// ✅ POST /serial-number
+app.post("/serial-number", async (req, res) => {
+  try {
+    if (!req.session?.user) return res.redirect("/");
+
+    let serial = normalizeSerial(req.body.serial_number);
+
+    if (!serial) {
+      return res.render("serial_number", {
+        user: req.session.user,
+        active: "serialnumber",
+        currentSerial: "",
+        error: "Bitte Seriennummer eingeben.",
+        success: null,
+        trialInfo: null,
+      });
+    }
+
+    if (!isValidSerialFormat(serial)) {
+      return res.render("serial_number", {
+        user: req.session.user,
+        active: "serialnumber",
+        currentSerial: serial,
+        error: "Ungültiges Format. Beispiel: ABC12-3DE45-FG678-HI901",
+        success: null,
+        trialInfo: null,
+      });
+    }
+
+    if (!passesModulo3(serial)) {
+      return res.render("serial_number", {
+        user: req.session.user,
+        active: "serialnumber",
+        currentSerial: serial,
+        error: "Seriennummer ungültig (Modulo-3 Prüfung fehlgeschlagen).",
+        success: null,
+        trialInfo: null,
+      });
+    }
+
+    // company_settings holen
+    const [rows] = await db
+      .promise()
+      .query(
+        `SELECT id, trial_started_at FROM company_settings ORDER BY id ASC LIMIT 1`,
+      );
+
+    if (!rows.length) {
+      // Wenn noch kein Datensatz existiert -> anlegen
+      await db.promise().query(
+        `INSERT INTO company_settings
+          (company_name, street, house_number, postal_code, city, country, default_currency, serial_number, trial_started_at)
+         VALUES ('', '', '', '', '', 'Deutschland', 'EUR', ?, NOW())`,
+        [serial],
+      );
+    } else {
+      const settingsId = rows[0].id;
+
+      await db.promise().query(
+        `UPDATE company_settings
+         SET serial_number = ?
+         WHERE id = ?`,
+        [serial, settingsId],
+      );
+    }
+
+    return res.render("serial_number", {
+      user: req.session.user,
+      active: "serialnumber",
+      currentSerial: serial,
+      error: null,
+      success: "✅ Seriennummer gespeichert!",
+      trialInfo: null,
+    });
+  } catch (err) {
+    console.error(err);
+
+    let msg = "Fehler beim Speichern.";
+    if (err.code === "ER_DUP_ENTRY")
+      msg = "Diese Seriennummer ist bereits vergeben.";
+
+    return res.render("serial_number", {
+      user: req.session.user,
+      active: "serialnumber",
+      currentSerial: req.body.serial_number || "",
+      error: msg,
+      success: null,
+      trialInfo: null,
+    });
+  }
+});
+
 /* ===============================
    DEINE LOGIK (unverändert)
 ================================ */

controllers/auth.controller.js

@@ -7,16 +7,27 @@ async function postLogin(req, res) {
   const { username, password } = req.body;
 
   try {
-    const user = await loginUser(
-      db,
-      username,
-      password,
-      LOCK_TIME_MINUTES
-    );
+    const user = await loginUser(db, username, password, LOCK_TIME_MINUTES);
+
+    /* req.session.user = user;
+    res.redirect("/dashboard"); */
 
     req.session.user = user;
-    res.redirect("/dashboard");
 
+    // ✅ Direkt nach Login check:
+    const [rows] = await db
+      .promise()
+      .query(
+        `SELECT serial_number, trial_started_at FROM company_settings ORDER BY id ASC LIMIT 1`,
+      );
+
+    const settings = rows?.[0];
+
+    if (!settings?.serial_number) {
+      return res.redirect("/serial-number");
+    }
+
+    res.redirect("/dashboard");
   } catch (error) {
     res.render("login", { error });
   }
@@ -28,5 +39,5 @@ function getLogin(req, res) {
 
 module.exports = {
   getLogin,
-  postLogin
+  postLogin,
 };

middleware/license.middleware.js

@@ -0,0 +1,52 @@
+const db = require("../db");
+
+const TRIAL_DAYS = 30;
+
+async function licenseGate(req, res, next) {
+  // Login-Seiten immer erlauben
+  if (req.path === "/" || req.path.startsWith("/login")) return next();
+
+  // Seriennummer-Seite immer erlauben
+  if (req.path.startsWith("/serial-number")) return next();
+
+  // Wenn nicht eingeloggt -> normal weiter (auth middleware macht das)
+  if (!req.session?.user) return next();
+
+  const [rows] = await db
+    .promise()
+    .query(
+      `SELECT serial_number, trial_started_at FROM company_settings ORDER BY id ASC LIMIT 1`,
+    );
+
+  const settings = rows?.[0];
+
+  // Wenn Seriennummer vorhanden -> alles ok
+  if (settings?.serial_number) return next();
+
+  // Wenn keine Trial gestartet: jetzt starten
+  if (!settings?.trial_started_at) {
+    await db
+      .promise()
+      .query(
+        `UPDATE company_settings SET trial_started_at = NOW() WHERE id = ?`,
+        [settings?.id || 1],
+      );
+    return next(); // Trial läuft ab jetzt
+  }
+
+  // Trial prüfen
+  const trialStart = new Date(settings.trial_started_at);
+  const now = new Date();
+
+  const diffMs = now - trialStart;
+  const diffDays = Math.floor(diffMs / (1000 * 60 * 60 * 24));
+
+  if (diffDays < TRIAL_DAYS) {
+    return next(); // Trial ist noch gültig
+  }
+
+  // ❌ Trial abgelaufen -> nur noch Seriennummer Seite
+  return res.redirect("/serial-number");
+}
+
+module.exports = { licenseGate };

package-lock.json

@@ -15,6 +15,7 @@
         "dotenv": "^17.2.3",
         "ejs": "^3.1.10",
         "express": "^4.19.2",
+        "express-ejs-layouts": "^2.5.1",
         "express-mysql-session": "^3.0.3",
         "express-session": "^1.18.2",
         "fs-extra": "^11.3.3",
@@ -3045,6 +3046,11 @@
         "url": "https://opencollective.com/express"
       }
     },
+    "node_modules/express-ejs-layouts": {
+      "version": "2.5.1",
+      "resolved": "https://registry.npmjs.org/express-ejs-layouts/-/express-ejs-layouts-2.5.1.tgz",
+      "integrity": "sha512-IXROv9n3xKga7FowT06n1Qn927JR8ZWDn5Dc9CJQoiiaaDqbhW5PDmWShzbpAa2wjWT1vJqaIM1S6vJwwX11gA=="
+    },
     "node_modules/express-mysql-session": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/express-mysql-session/-/express-mysql-session-3.0.3.tgz",

package.json

@@ -19,6 +19,7 @@
     "dotenv": "^17.2.3",
     "ejs": "^3.1.10",
     "express": "^4.19.2",
+    "express-ejs-layouts": "^2.5.1",
     "express-mysql-session": "^3.0.3",
     "express-session": "^1.18.2",
     "fs-extra": "^11.3.3",

public/css/style.css

@@ -78,3 +78,102 @@
     visibility: hidden;
   }
 }
+
+/* =========================================================
+   ✅ PAGE HEADER (global)
+   - Höhe ca. 4cm
+   - Hintergrund schwarz
+   - Text in der Mitte
+   - Button + Datum/Uhrzeit rechts
+========================================================= */
+
+/* ✅ Der komplette Header-Container */
+.page-header {
+  height: 150px; /* ca. 4cm */
+  background: #000; /* Schwarz */
+  color: #fff; /* Weiße Schrift */
+
+  /* Wir nutzen Grid, damit Center wirklich immer mittig bleibt */
+  display: grid;
+
+  /* 3 Spalten:
+     1) links = leer/optional
+     2) mitte = Text (center)
+     3) rechts = Dashboard + Uhrzeit
+  */
+  grid-template-columns: 1fr 2fr 1fr;
+
+  align-items: center; /* vertikal mittig */
+  padding: 0 20px; /* links/rechts Abstand */
+  box-sizing: border-box;
+}
+
+/* ✅ Linke Header-Spalte (kann leer bleiben oder später Logo) */
+.page-header-left {
+  justify-self: start; /* ganz links */
+}
+
+/* ✅ Mittlere Header-Spalte (Text zentriert) */
+.page-header-center {
+  justify-self: center; /* wirklich zentriert in der Mitte */
+  text-align: center;
+
+  display: flex;
+  flex-direction: column; /* Username oben, Titel darunter */
+  gap: 6px; /* Abstand zwischen den Zeilen */
+}
+
+/* ✅ Rechte Header-Spalte (Button + Uhrzeit rechts) */
+.page-header-right {
+  justify-self: end; /* ganz rechts */
+
+  display: flex;
+  flex-direction: column; /* Button oben, Uhrzeit unten */
+  align-items: flex-end; /* alles rechts ausrichten */
+  gap: 10px; /* Abstand Button / Uhrzeit */
+}
+
+/* ✅ Username-Zeile (z.B. Willkommen, admin) */
+.page-header-username {
+  font-size: 22px;
+  font-weight: 600;
+  margin: 0;
+}
+
+/* ✅ Titel-Zeile (z.B. Seriennummer) */
+.page-header-title {
+  font-size: 18px;
+  opacity: 0.9;
+}
+
+/* ✅ Subtitle Bereich (optional) */
+.page-header-subtitle {
+  opacity: 0.75;
+}
+
+/* ✅ Uhrzeit (oben rechts unter dem Button) */
+.page-header-datetime {
+  font-size: 14px;
+  opacity: 0.85;
+}
+
+/* ✅ Dashboard Button (weißer Rahmen) */
+.page-header .btn-outline-light {
+  border-color: #fff !important;
+  color: #fff !important;
+}
+
+/* ✅ Dashboard Button: keine Unterstreichung + Rahmen + rund */
+.page-header a.btn {
+  text-decoration: none !important; /* keine Unterstreichung */
+  border: 2px solid #fff !important; /* Rahmen */
+  border-radius: 12px; /* abgerundete Ecken */
+  padding: 6px 12px; /* schöner Innenabstand */
+  display: inline-block; /* saubere Button-Form */
+}
+
+/* ✅ Dashboard Button (Hovereffekt) */
+.page-header a.btn:hover {
+  background: #fff !important;
+  color: #000 !important;
+}

views/layout.ejs

@@ -0,0 +1,18 @@
+<!doctype html>
+<html lang="de">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+
+    <title>
+      <%= typeof title !== "undefined" ? title : "Privatarzt Software" %>
+    </title>
+
+    <!-- ✅ Global CSS -->
+    <link rel="stylesheet" href="/css/style.css" />
+  </head>
+
+  <body>
+    <%- body %>
+  </body>
+</html>

views/partials/admin-sidebar.ejs

@@ -71,6 +71,19 @@
     <% } %>
   </a>
 
+  <!-- ✅ Seriennummer (NEU) -->
+  <a
+    href="<%= hrefIfAllowed(isAdmin, '/serial-number') %>"
+    class="nav-item <%= active === 'serialnumber' ? 'active' : '' %> <%= lockClass(isAdmin) %>"
+    <%- lockClick(isAdmin) %>
+    title="<%= isAdmin ? '' : 'Nur Admin' %>"
+  >
+    <i class="bi bi-key"></i> Seriennummer
+    <% if (!isAdmin) { %>
+      <span style="margin-left:auto;"><i class="bi bi-lock-fill"></i></span>
+    <% } %>
+  </a>
+
   <div class="spacer"></div>
 
   <!-- ✅ Zurück zum Dashboard -->

views/partials/page-header.ejs

@@ -0,0 +1,52 @@
+<%
+  const titleText = typeof title !== "undefined" ? title : "";
+  const subtitleText = typeof subtitle !== "undefined" ? subtitle : "";
+  const showUser = typeof showUserName !== "undefined" ? showUserName : true;
+%>
+
+<div class="page-header">
+
+  <!-- LINKS -->
+  <div class="page-header-left"></div>
+
+  <!-- ✅ CENTER TEXT -->
+  <div class="page-header-center">
+    <% if (showUser && user?.username) { %>
+      <div class="page-header-username">
+        Willkommen, <%= user.username %>
+      </div>
+    <% } %>
+
+    <% if (titleText) { %>
+      <div class="page-header-title">
+        <%= titleText %>
+        <% if (subtitleText) { %>
+          <span class="page-header-subtitle"> - <%= subtitleText %></span>
+        <% } %>
+      </div>
+    <% } %>
+  </div>
+
+  <!-- ✅ RIGHT -->
+  <div class="page-header-right">
+    <a href="/dashboard" class="btn btn-outline-light btn-sm">
+      ⬅️ Dashboard
+    </a>
+
+    <span id="datetime" class="page-header-datetime"></span>
+  </div>
+
+</div>
+
+<script>
+  (function () {
+    function updateDateTime() {
+      const el = document.getElementById("datetime");
+      if (!el) return;
+      el.textContent = new Date().toLocaleString("de-DE");
+    }
+
+    updateDateTime();
+    setInterval(updateDateTime, 1000);
+  })();
+</script>

views/serial_number.ejs

@@ -0,0 +1,51 @@
+<div class="layout">
+
+  <!-- MAIN CONTENT -->
+  <div class="main">
+
+    <!-- ✅ HEADER -->
+    <%- include("partials/page-header", {
+      user,
+      title: "Seriennummer",
+      subtitle: "Lizenz / Testphase",
+      showUserName: true
+    }) %>
+
+    <div class="content">
+
+      <h2>🔑 Seriennummer</h2>
+
+      <% if (error) { %>
+        <div class="alert alert-danger"><%= error %></div>
+      <% } %>
+
+      <% if (success) { %>
+        <div class="alert alert-success"><%= success %></div>
+      <% } %>
+
+      <% if (trialInfo) { %>
+        <div class="alert alert-warning"><%= trialInfo %></div>
+      <% } %>
+
+      <form method="POST" action="/serial-number" style="max-width:500px;">
+        <div class="form-group">
+          <label>Seriennummer (AAAAA-AAAAA-AAAAA-AAAAA)</label>
+          <input
+            type="text"
+            name="serial_number"
+            value="<%= currentSerial || '' %>"
+            class="form-control"
+            placeholder="ABCDE-12345-ABCDE-12345"
+            maxlength="23"
+            required
+          />
+        </div>
+
+        <button class="btn btn-primary" style="margin-top:15px;">
+          Speichern
+        </button>
+      </form>
+
+    </div>
+  </div>
+</div>