redo ant csrf token

ensure anti csrf token and session is only created after login

Sean/server.js

@@ -19,8 +19,10 @@ const PORT = process.env.PORT || 3000;
 require("dotenv").config();
 
 app.use(bodyParser.urlencoded({ extended: true }));
-app.use(
+
-	session({
+app.set("view engine", "ejs");
+
+app.use(session({
     secret: process.env.key,
     resave: false,
     saveUninitialized: true,
@@ -29,22 +31,7 @@ app.use(
         httpOnly: true,
         maxAge: 24 * 60 * 60 * 1000, // Session duration in milliseconds (here set to 1 day)
     },
-	})
+}));
-);
-
-app.use((req, res, next) => {
-    if (!req.session.csrfToken) {
-        req.session.csrfToken = crypto.randomBytes(32).toString('hex');
-    }
-
-    // Make the CSRF token available in the response context
-    res.locals.csrfToken = req.session.csrfToken;
-	console.log(`Server-side CSRF Token: ${req.session.csrfToken}`);
-    next();
-});
-
-app.set("view engine", "ejs");
-
 function isAuthenticated(req, res, next) {
 	if (req.session && req.session.authenticated) {
 		return next();
@@ -144,17 +131,11 @@ const logActivity = async (username, success, message) => {
   app.post('/login', [
     body('username').escape().trim().isLength({ min: 1 }).withMessage('Username must not be empty'),
     body('password').escape().trim().isLength({ min: 1 }).withMessage('Password must not be empty'),
-    body('csrf_token').escape().trim().isLength({ min: 1 }).withMessage('CSRF token must not be empty'),
 ],
 async (req, res) => {
     try {
         const errors = validationResult(req);
 
-        // Validate CSRF token
-        if (req.body.csrf_token !== req.session.csrfToken) {
-            return res.status(403).send("Invalid CSRF token");
-        }
-
         if (!errors.isEmpty()) {
             // Handle validation errors, e.g., return an error message to the client
             return res.render('login', { error: 'Invalid input. Please check your credentials.', csrfToken: req.session.csrfToken });
@@ -222,17 +203,11 @@ async (req, res) => {
 // OTP verification route
 app.post("/verify-otp", [
     body('otp').escape().trim().isLength({ min: 1 }).withMessage('OTP must not be empty'),
-    body('csrf_token').escape().trim().isLength({ min: 1 }).withMessage('CSRF token must not be empty'),
 ],
 async (req, res) => {
     try {
         const errors = validationResult(req);
 
-        // Validate CSRF token
-        if (req.body.csrf_token !== req.session.csrfToken) {
-            return res.status(403).send("Invalid CSRF token");
-        }
-
         if (!errors.isEmpty()) {
             // Handle validation errors, e.g., return an error message to the client
             return res.render('otp', { error: 'Invalid OTP. Please try again.', username: req.body.username, csrfToken: req.session.csrfToken });
@@ -240,10 +215,16 @@ async (req, res) => {
 
         const enteredOTP = req.body.otp;
 
+        if (!req.session) {
+            // If session is not defined, handle accordingly
+            console.error("Session is not defined.");
+            return res.status(500).send("Internal Server Error");
+        }
+
         if (enteredOTP === req.session.otp) {
-            // Log successful OTP entry and login
+            // Log successful OTP entry
             if (req.body.username) {
-                await logActivity(req.body.username, true, "OTP entered correctly. Successful login");
+                await logActivity(req.body.username, true, "OTP entered correctly");
             }
 
             // Correct OTP, generate a session token
@@ -253,8 +234,22 @@ async (req, res) => {
             req.session.authenticated = true;
             req.session.username = req.body.username;
             req.session.sessionToken = sessionToken;
+
+            // Generate and store anti-CSRF token in the session
+            req.session.csrfToken = crypto.randomBytes(32).toString('hex');
+
+            // Set anti-CSRF token in res.locals
             res.locals.csrfToken = req.session.csrfToken;
-	        console.log(`Server-side CSRF Token: ${req.session.csrfToken}`);
+
+            // Log anti-CSRF token
+            console.log(`Generated Anti-CSRF Token: ${req.session.csrfToken}`);
+
+            // Implement secure session handling:
+            // 1. Set secure, HttpOnly, and SameSite flags
+            // 2. Set an expiration time for the session token
+            // 3. Regenerate the session after authentication
+            res.cookie('sessionToken', sessionToken, { secure: true, httpOnly: true, expires: new Date(Date.now() + 24 * 60 * 60 * 1000) }); // Expires in 1 day
+
             console.log(`Generated Session Token: ${sessionToken}`);
 
             // Redirect to home page with session token
@@ -274,6 +269,8 @@ async (req, res) => {
     }
 });
 
+
+
   app.get("/logout", (req, res) => {
 	try {
 		const username = req.session.username || "Unknown User";

Sean/views/inusers.ejs

@@ -146,6 +146,7 @@
     </div>
     <script>
       const allUsers = <%- JSON.stringify(allUsers) %>;
+      
   </script>
  
   <script src="https://code.jquery.com/jquery-3.6.4.min.js"></script>

Sean/views/inusers.js

@@ -1,6 +1,5 @@
 
 
-
 $(document).ready(function () {
   $('#resetPasswordLink').on('click', function () {
     $('#resetPasswordFormContainer').show();
@@ -431,3 +430,5 @@ $('#resetPasswordForm').on('submit', function (e) {
 
 
 
+  
+

Sean/views/login.ejs

@@ -86,7 +86,6 @@ button:hover {
 
       <label for="password">Password</label>
       <input type="password" id="password" name="password" placeholder="Enter your password" required>
-      <input type="hidden" name="csrf_token" value="<%= csrfToken %>">
       <button type="submit">Login</button>
     </form>
 

Sean/views/otp.ejs

@@ -69,7 +69,7 @@
         <label for="otp">OTP:</label>
         <input type="text" id="otp" name="otp" required>
         <br>
-        <input type="hidden" name="csrf_token" value="<%= csrfToken %>">
+        
         <button type="submit">Submit OTP</button>
     </form>
 </body>

package-lock.json

@@ -18,6 +18,16 @@
         "rimraf": "^3.0.2",
         "semver": "^7.3.5",
         "tar": "^6.1.11"
+      },
+      "dependencies": {
+        "node-fetch": {
+          "version": "2.7.0",
+          "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.7.0.tgz",
+          "integrity": "sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A==",
+          "requires": {
+            "whatwg-url": "^5.0.0"
+          }
+        }
       }
     },
     "@otplib/core": {
@@ -386,6 +396,11 @@
         }
       }
     },
+    "data-uri-to-buffer": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/data-uri-to-buffer/-/data-uri-to-buffer-4.0.1.tgz",
+      "integrity": "sha512-0R9ikRb668HB7QDxT1vkpuUBtqc53YyAwMwGeUFKRojY/NWKvdZ+9UYtRfGmhqNbRkTSVpMbmyhXipFFv2cb/A=="
+    },
     "debug": {
       "version": "4.3.4",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
@@ -530,6 +545,11 @@
       "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-4.0.0.tgz",
       "integrity": "sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA=="
     },
+    "esm": {
+      "version": "3.2.25",
+      "resolved": "https://registry.npmjs.org/esm/-/esm-3.2.25.tgz",
+      "integrity": "sha512-U1suiZ2oDVWv4zPO56S0NcR5QriEahGtdN2OR6FiOG4WJvcjBVFB0qI4+eKoWFH483PKGuLuu6V8Z4T5g63UVA=="
+    },
     "etag": {
       "version": "1.8.1",
       "resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
@@ -662,6 +682,15 @@
         "validator": "^13.9.0"
       }
     },
+    "fetch-blob": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/fetch-blob/-/fetch-blob-3.2.0.tgz",
+      "integrity": "sha512-7yAQpD2UMJzLi1Dqv7qFYnPbaPx7ZfFK6PiIxQ4PfkGPyNyl2Ugx+a/umUonmKqjhM4DnfbMvdX6otXq83soQQ==",
+      "requires": {
+        "node-domexception": "^1.0.0",
+        "web-streams-polyfill": "^3.0.3"
+      }
+    },
     "filelist": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/filelist/-/filelist-1.0.4.tgz",
@@ -718,6 +747,14 @@
         "path-exists": "^4.0.0"
       }
     },
+    "formdata-polyfill": {
+      "version": "4.0.10",
+      "resolved": "https://registry.npmjs.org/formdata-polyfill/-/formdata-polyfill-4.0.10.tgz",
+      "integrity": "sha512-buewHzMvYL29jdeQTVILecSaZKnt/RJWjoZCF5OW60Z67/GmSLBkOFM7qh1PI3zFNtJbaZL5eQu1vLfazOwj4g==",
+      "requires": {
+        "fetch-blob": "^3.1.2"
+      }
+    },
     "forwarded": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
@@ -1143,12 +1180,19 @@
       "resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-5.1.0.tgz",
       "integrity": "sha512-eh0GgfEkpnoWDq+VY8OyvYhFEzBk6jIYbRKdIlyTiAXIVJ8PyBaKb0rp7oDtoddbdoHWhq8wwr+XZ81F1rpNdA=="
     },
+    "node-domexception": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/node-domexception/-/node-domexception-1.0.0.tgz",
+      "integrity": "sha512-/jKZoMpw0F8GRwl4/eLROPA3cfcXtLApP0QzLmUT/HuPCZWyB7IY9ZrMeKw2O/nFIqPQB3PVM9aYm0F312AXDQ=="
+    },
     "node-fetch": {
-      "version": "2.7.0",
+      "version": "3.3.2",
-      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.7.0.tgz",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-3.3.2.tgz",
-      "integrity": "sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A==",
+      "integrity": "sha512-dRB78srN/l6gqWulah9SrxeYnxeddIG30+GOqK/9OlLVyLg3HPnr6SqOWTWOXKRwC2eGYCkZ59NNuSgvSrpgOA==",
       "requires": {
-        "whatwg-url": "^5.0.0"
+        "data-uri-to-buffer": "^4.0.0",
+        "fetch-blob": "^3.1.4",
+        "formdata-polyfill": "^4.0.10"
       }
     },
     "nodemailer": {
@@ -1668,6 +1712,11 @@
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
       "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg=="
     },
+    "web-streams-polyfill": {
+      "version": "3.3.2",
+      "resolved": "https://registry.npmjs.org/web-streams-polyfill/-/web-streams-polyfill-3.3.2.tgz",
+      "integrity": "sha512-3pRGuxRF5gpuZc0W+EpwQRmCD7gRqcDOMt688KmdlDAgAyaB1XlN0zq2njfDNm44XVdIouE7pZ6GzbdyH47uIQ=="
+    },
     "webidl-conversions": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",

package.json

@@ -23,6 +23,7 @@
     "csurf": "^1.11.0",
     "dotenv": "^16.3.1",
     "ejs": "^3.1.9",
+    "esm": "^3.2.25",
     "express": "^4.18.2",
     "express-session": "^1.17.3",
     "express-validator": "^7.0.1",
@@ -30,6 +31,7 @@
     "moment": "^2.30.1",
     "mqtt": "^5.3.3",
     "mysql2": "^3.6.5",
+    "node-fetch": "^3.3.2",
     "nodemailer": "^6.9.7",
     "otp-generator": "^4.0.1",
     "otplib": "^12.0.1",