mate-academy · lmuias · Jul 17, 2024 · Jul 17, 2024
diff --git a/src/createServer.js b/src/createServer.js
@@ -1,8 +1,152 @@
 'use strict';
 
+const http = require('http');
+const zlib = require('zlib');
+const formidable = require('formidable');
+const fs = require('fs');
+const path = require('path');
+
+const compressionTypes = ['gzip', 'deflate', 'br'];
+
+function handleCompressFile(compressionType) {
+  switch (compressionType) {
+    case 'gzip':
+      return zlib.createGzip();
+    case 'deflate':
+      return zlib.createDeflate();
+    case 'br':
+      return zlib.createBrotliCompress();
+    default:
+      return null;
+  }
+}
+
 function createServer() {
-  /* Write your code here */
-  // Return instance of http.Server class
+  const server = new http.Server();
+
+  server.on('request', (req, res) => {
+    const form = new formidable.IncomingForm();
+    const url = new URL(req.url, `http://${req.headers.host}`);
+    const pathname = url.pathname;
+
+    if (pathname === '/' && req.method === 'GET') {
+      fs.readFile(path.join(__dirname, 'index.html'), (err, data) => {
+        if (err) {
+          res.statusCode = 500;
+          res.end('Error loading the form');
+
+          return;
+        }
+
+        res.setHeader('Content-Type', 'text/html');
+        res.statusCode = 200;
+        res.end(data);
+      });
+
+      return;
+    }
+
+    const ext = path.extname(pathname);
+    const staticFiles = ['.css', '.js', '.png', '.jpg', '.gif'];
+
+    if (staticFiles.includes(ext)) {
+      const filePath = path.join(__dirname, pathname);
+
+      fs.readFile(filePath, (err, data) => {
+        if (err) {
+          res.statusCode = 404;
+          res.end('File not found');
+
+          return;
+        }
+
+        res.setHeader('Content-Type', getContentType(ext));
+        res.statusCode = 200;
+        res.end(data);
+      });
+
+      return;
+    }
+
+    if (pathname !== '/compress') {
+      res.statusCode = 404;
+      res.end('Trying to access a non-existing route');
+
+      return;
+    }
+
+    if (req.method !== 'POST') {
+      res.statusCode = 400;
+      res.end('Use POST request method instead');
+
+      return;
+    }
+
+    form.parse(req, (error, fields, files) => {
+      if (error || !files.file || !fields.compressionType) {
+        res.statusCode = 400;
+        res.end('Bad request');
+
+        return;
+      }
+
+      const [compressionType] = fields.compressionType;
+      const [file] = files.file;
+
+      if (!compressionTypes.includes(compressionType)) {
+        res.statusCode = 400;
+        res.end('Compression type not supported');
+
+        return;
+      }
+
+      const compressedFile = handleCompressFile(compressionType);
+
+      res.setHeader(
+        'Content-Disposition',
+        `attachment; filename=${file.originalFilename}.${compressionType}`,
+      );
+
+      const fileStream = fs.createReadStream(file.filepath);
+
+      fileStream
+        .on('error', (err) => {
+          res.statusCode = 500;
+          res.end('Failed to read file', err);
+        })
+        .pipe(compressedFile)
+        .on('error', (err) => {
+          res.statusCode = 500;
+          res.end('Failed to compress file', err);
+        })
+        .pipe(res)
+        .on('error', (err) => {
+          // eslint-disable-next-line no-console
+          console.error('Error sending response:', err);
+        });
+
+      res.on('close', () => fileStream.destroy());
+    });
+  });
+
+  return server;
+}
+
+function getContentType(ext) {
+  switch (ext) {
+    case '.css':
+      return 'text/css';
+    case '.js':
+      return 'application/javascript';
+    case '.png':
+      return 'image/png';
+    case '.jpg':
+      return 'image/jpeg';
+    case '.gif':
+      return 'image/gif';
+    default:
+      return 'text/plain';
+  }
 }
 
 module.exports = {

diff --git a/src/index.html b/src/index.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Document</title>
+  <link rel="stylesheet" href="./main.css">
+</head>
+<body>
+  <form
+    id="compressionForm"
+    action="/compress"
+    method="post"
+    enctype="multipart/form-data"
+  >
+    <input type="file" name="file">
+    <select name="compressionType" id="compressionType">
+      <option value="gzip">gzip</option>
+      <option value="deflate">deflate</option>
+      <option value="br">br</option>
+    </select>
+
+    <button type="submit">Submit</button>
+  </form>
+</body>
+</html>
diff --git a/src/main.css b/src/main.css
@@ -0,0 +1,15 @@
+body {
+  width: 100vw;
+  height: 100vh;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  box-sizing: border-box;
+  margin: 0;
+}
+
+#compressionForm {
+  display: flex;
+  flex-direction: column;
+  gap: 5px;
+}