feat: rate-limiter

.gitignore

@@ -155,4 +155,4 @@ sketch
 !.yarn/sdks
 !.yarn/versions
 
-# End of https://www.toptal.com/developers/gitignore/api/vscode,yarn,react,node
+# End of https://www.toptal.com/developers/gitignore/api/vscode,yarn,react,node

README.md

@@ -168,6 +168,8 @@ Advanced manual setups are also supported. Check the following environment varia
 | ZU_DISABLE_AUTH | unset | If set to true, automatically log in all users. This is useful if ZeroUI is protected by an authentication proxy. Note that when this value is changed, the localStorage of instances of logged-in panels should be cleared |
 | ZU_LAST_SEEN_FETCH | `true`| Enables [Last Seen feature](https://github.com/dec0dOS/zero-ui/issues/40) |
 | ZU_LAST_SEEN_SCHEDULE | `*/5 * * * *` | Last Seen cron-like schedule |
+| ZU_LOGIN_LIMIT_WINDOW | 30 | The duration of the IP ban in minutes |
+| ZT_LOGIN_LIMIT_ATTEMPTS | 50 | Login attemps before ban |
 
 ZeroUI could be deployed as a regular nodejs web application, but it requires a ZeroTier controller that is installed with the `zerotier-one` package. For more info about the network controller, you could read [here](https://github.com/zerotier/ZeroTierOne/tree/master/controller/#readme).
 

backend/package.json

@@ -15,6 +15,7 @@
     "dotenv": "^16.3.1",
     "express": "^4.18.2",
     "express-bearer-token": "^2.4.0",
+    "express-rate-limit": "^7.1.1",
     "helmet": "^5.1.1",
     "lodash": "^4.17.21",
     "lowdb": "^1.0.0",

backend/routes/auth.js

@@ -1,8 +1,18 @@
 import express from "express";
+import rateLimit from "express-rate-limit";
 const router = express.Router();
 
 import * as auth from "../services/auth.js";
 
+const loginLimiter = rateLimit({
+  windowMs: (Number(process.env.ZU_LOGIN_LIMIT_WINDOW) || 30) * 60 * 1000, // 30 minutes
+  max: Number(process.env.ZT_LOGIN_LIMIT_ATTEMPTS) || 50, // limit each IP to 50 requests per windowMs
+  message: {
+    status: 429,
+    error: "Too many login attempts, please try again in 15 minutes.",
+  },
+});
+
 router.get("/login", async function (req, res) {
   if (process.env.ZU_DISABLE_AUTH === "true") {
     res.send({ enabled: false });
@@ -11,7 +21,7 @@ router.get("/login", async function (req, res) {
   }
 });
 
-router.post("/login", async function (req, res) {
+router.post("/login", loginLimiter, async function (req, res) {
   if (req.body.username && req.body.password) {
     auth.authorize(req.body.username, req.body.password, function (err, user) {
       if (user) {

backend/services/auth.js

@@ -8,12 +8,12 @@ export async function authorize(username, password, callback) {
     throw err;
   }
   const user = users.find({ username: username });
-  if (!user.value()) return callback(new Error("Cannot find user"));
+  if (!user.value()) return callback(new Error("Invalid username or password")); // If return "user not found" someone can do a user listing
   const verified = await verifyHash(password, user.value()["password_hash"]);
   if (verified) {
     return callback(null, user.value());
   } else {
-    return callback(new Error("Invalid password"));
+    return callback(new Error("Invalid username or password"));
   }
 }
 

frontend/src/components/LogIn/components/LogInUser/LogInUser.jsx

@@ -17,6 +17,8 @@ function LogInUser() {
   const [open, setOpen] = useState(false);
   const [snackbarOpen, setSnackbarOpen] = useState(false);
 
+  const [error, setError] = useState("");
+
   const [username, setUsername] = useState("");
   const [password, setPassword] = useState("");
 
@@ -65,7 +67,8 @@ function LogInUser() {
       .catch(function (error) {
         setPassword("");
         setSnackbarOpen(true);
-        console.error(error);
+        setError(error.response.data.error);
+        // console.error(error.response.data.error);
       });
   };
 
@@ -114,7 +117,7 @@ function LogInUser() {
           vertical: "top",
           horizontal: "center",
         }}
-        message="Invalid username or password"
+        message={error}
       />
     </>
   );

yarn.lock

@@ -2020,6 +2020,7 @@ __metadata:
     eslint-plugin-unicorn: "npm:^48.0.1"
     express: "npm:^4.18.2"
     express-bearer-token: "npm:^2.4.0"
+    express-rate-limit: "npm:^7.1.1"
     helmet: "npm:^5.1.1"
     lodash: "npm:^4.17.21"
     lowdb: "npm:^1.0.0"
@@ -4005,6 +4006,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"express-rate-limit@npm:^7.1.1":
+  version: 7.1.1
+  resolution: "express-rate-limit@npm:7.1.1"
+  peerDependencies:
+    express: ^4 || ^5
+  checksum: 28fc48e25e52b269a37a9e223fcd2a234022466645737c182eec2d2a72fdfdb42a396738a062924ee37ff56719957ae0ef092cfde510ba34b63d554ce094f6ba
+  languageName: node
+  linkType: hard
+
 "express@npm:^4.18.2":
   version: 4.18.2
   resolution: "express@npm:4.18.2"