implement validation of email and password, ratelimiting, add ci for builds

.gitea/workflows/docker.yml

@@ -0,0 +1,30 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    branches:
+    - main
+  pull_request:
+    branches:
+    - main
+
+jobs:
+  build_and_push:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout Code
+      uses: actions/checkout@v3
+
+    - name: Log in to Gitea Package Registry
+      run: echo "${{ secrets.PACKAGE_TOKEN }}" | docker login $SERVER_URL -u $USERNAME --password-stdin
+      env:
+        SERVER_URL: ${{ secrets.SERVER_URL }}
+        USERNAME: ${{ secrets.USERNAME }}
+        PACKAGE_TOKEN: ${{ secrets.PACKAGE_TOKEN }}
+
+    - name: Build Docker Image
+      run: docker build -t git.pontusmail.org/librecloud/mail-connect:latest .
+
+    - name: Push Docker Image
+      run: docker push git.pontusmail.org/librecloud/mail-connect:latest

package.json

@@ -11,7 +11,10 @@
   "dependencies": {
     "child_process": "^1.0.2",
     "dockerode": "^4.0.4",
-    "express": "^4.21.2"
+    "express": "^4.21.2",
+    "express-rate-limit": "^7.5.0",
+    "password-validator": "^5.3.0",
+    "validator": "^13.12.0"
   },
   "trustedDependencies": [
     "protobufjs"

ratelimit.json

@@ -0,0 +1,10 @@
+{
+  "/list": {
+    "windowMs": 60000,
+    "max": 20
+  },
+  "/add": {
+    "windowMs": 60000,
+    "max": 10
+  }
+}

server.js

@@ -1,10 +1,53 @@
 const express = require('express');
+const fs = require('fs');
+const rateLimit = require('express-rate-limit');
 const Docker = require('dockerode');
+const validator = require('validator');
 
 const docker = new Docker({ socketPath: '/var/run/docker.sock' });
 const app = express();
 app.use(express.json());
 
+// Rate limiting
+
+let rateLimitConfig = {};
+try {
+  const data = fs.readFileSync('./ratelimit.json', 'utf8');
+  rateLimitConfig = JSON.parse(data);
+} catch (err) {
+  console.error('Error loading rate limit config:', err);
+}
+
+function createLimiter(options) {
+  return rateLimit({
+    windowMs: options.windowMs,
+    max: options.max,
+    message: "Too many requests, please try again another time.",
+  });
+}
+
+if (rateLimitConfig['/list']) {
+  app.use('/list', createLimiter(rateLimitConfig['/list']));
+}
+if (rateLimitConfig['/add']) {
+  app.use('/add', createLimiter(rateLimitConfig['/add']));
+}
+
+// Utility fxns
+
+function validateEmail(email) {
+  return typeof email === 'string' && validator.isEmail(email);
+}
+
+const PasswordValidator = require('password-validator');
+const passwordSchema = new PasswordValidator();
+passwordSchema
+  .is().min(8)
+  .is().max(64)
+  .has().letters()
+  .has().digits()
+  .has().not().spaces();
+
 function listAccounts() {
   return new Promise((resolve, reject) => {      
     const container = docker.getContainer('mailserver');
@@ -49,6 +92,8 @@ function listAccounts() {
   });
 }
 
+// Routes
+
 app.get('/list', (req, res) => {
   listAccounts()
     .then(accounts => res.json({ accounts }))
@@ -57,8 +102,8 @@ app.get('/list', (req, res) => {
 
 app.post('/add', (req, res) => {
   const { email, password } = req.body;
-  if (!email || !password) {
-    return res.status(400).json({ error: "Email and password are required." });
+  if (!email || !validateEmail(email) || !password) {
+    return res.status(400).json({ error: "A valid email and password is required." });
   }
   
   const container = docker.getContainer('mailserver');