solution

.github/workflows/test.yml-template

@@ -0,0 +1,23 @@
+name: Test
+
+on:
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [20.x]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: npm install
+    - run: npm test

package.json

@@ -18,7 +18,7 @@
   "devDependencies": {
     "@faker-js/faker": "^8.4.1",
     "@mate-academy/eslint-config": "latest",
-    "@mate-academy/scripts": "^1.8.6",
+    "@mate-academy/scripts": "^2.1.3",
     "axios": "^1.7.2",
     "eslint": "^8.57.0",
     "eslint-plugin-jest": "^28.6.0",

src/createServer.js

@@ -1,8 +1,80 @@
 'use strict';
 
+const http = require('http');
+const fs = require('fs');
+const path = require('path');
+
 function createServer() {
-  /* Write your code here */
-  // Return instance of http.Server class
+  const server = http.createServer((req, res) => {
+    const rawUrl = req.url;
+
+    if (rawUrl.includes('//')) {
+      res.statusCode = 404;
+      res.setHeader('content-type', 'text/plain');
+      res.end('Not found');
+
+      return;
+    }
+
+    const urlPath = rawUrl.split('?')[0];
+
+    if (urlPath.startsWith('/file/')) {
+      const relativeRaw = urlPath.slice('/file/'.length);
+
+      let relative;
+
+      try {
+        relative = decodeURIComponent(relativeRaw);
+      } catch {
+        res.statusCode = 400;
+        res.end('Bad request');
+
+        return;
+      }
+
+      const publicDir = path.resolve(__dirname, '../public');
+      const filePath = path.resolve(publicDir, relative);
+
+      const relativePath = path.relative(publicDir, filePath);
+
+      if (relativePath.startsWith('..') || path.isAbsolute(relativePath)) {
+        res.statusCode = 400;
+        res.setHeader('content-type', 'text/plain');
+        res.end('Bad request');
+
+        return;
+      }
+
+      fs.readFile(filePath, (err, data) => {
+        if (err) {
+          res.statusCode = 404;
+          res.setHeader('content-type', 'text/plain');
+          res.end('Not found');
+
+          return;
+        }
+
+        res.statusCode = 200;
+        res.end(data);
+      });
+
+      return;
+    }
+
+    if (urlPath !== '/file') {
+      res.statusCode = 400;
+      res.setHeader('content-type', 'text/plain');
+      res.end('Bad request');
+
+      return;
+    }
+
+    res.statusCode = 200;
+    res.setHeader('content-type', 'text/plain');
+    res.end('Use /file/<filename> to serve a file from the public folder');
+  });
+
+  return server;
 }
 
 module.exports = {