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add solution #243

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142 changes: 140 additions & 2 deletions src/createServer.js
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Original file line number Diff line number Diff line change
@@ -1,8 +1,146 @@
'use strict';

const http = require('http');
const path = require('path');
const zlib = require('zlib');
const fs = require('fs');
const { IncomingForm } = require('formidable');
const { pipeline } = require('stream');

const compressionTypes = {
gzip: {
createStream: zlib.createGzip,
extension: '.gz',
},
deflate: {
createStream: zlib.createDeflate,
extension: '.dfl',
},
br: {
createStream: zlib.createBrotliCompress,
extension: '.br',
},
};

function sendHtml(response) {
const filePath = path.join(__dirname, 'index.html');

const stream = fs.createReadStream(filePath);

stream.pipe(response);
}

function sendCss(response) {
const filePath = path.join(__dirname, 'styles', 'style.css');

response.setHeader('Content-Type', 'text/css');

fs.createReadStream(filePath).pipe(response);
}

function createServer() {
/* Write your code here */
// Return instance of http.Server class
return http.createServer((request, response) => {
const { method, url } = request;

if (method === 'GET' && url === '/') {
sendHtml(response);

return;
}

if (method === 'GET' && url === '/styles/style.css') {
sendCss(response);

return;
}

if (method === 'GET' && url === '/compress') {
response.writeHead(400, {
'Content-Type': 'text/plain; charset=utf-8',
});
response.end('Bad request');

return;
}

if (method === 'POST' && url === '/compress') {
const form = new IncomingForm({
multiples: false,
keepExtensions: true,
});

form.parse(request, (error, fields, files) => {
if (error) {
response.writeHead(400, {
'Content-Type': 'text/plain; charset=utf-8',
});
response.end('Bad request');

return;
}

const compressionType = Array.isArray(fields.compressionType)
? fields.compressionType[0]
: fields.compressionType;

if (!Object.hasOwn(compressionTypes, compressionType)) {
response.writeHead(400, {
'Content-Type': 'text/plain; charset=utf-8',
});
response.end('Compression type is unsupported');

return;
}

const uploaded = files.file;

if (!uploaded) {
response.writeHead(400, {
'Content-Type': 'text/plain; charset=utf-8',
});
response.end('Request has not file');

return;
}

const file = Array.isArray(uploaded) ? uploaded[0] : uploaded;

const tempPath = file.filepath;

const originalName = file.originalFilename || 'file';
const safeName =
path.basename(originalName) +
compressionTypes[compressionType].extension;

const encodedName = encodeURIComponent(safeName);

response.writeHead(200, {
'Content-Type': 'application/octet-stream',
'Content-Disposition': `attachment; filename=${encodedName}`,
});

pipeline(
fs.createReadStream(tempPath),
compressionTypes[compressionType].createStream(),
response,
(err) => {
fs.unlink(tempPath, () => {});

if (err) {
}
},
);
});

return;
}

response.writeHead(404, {
'Content-Type': 'text/plain; charset=utf-8',
});

response.end('Non found');
});
}

module.exports = {
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31 changes: 31 additions & 0 deletions src/index.html
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Original file line number Diff line number Diff line change
@@ -0,0 +1,31 @@
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="./styles/style.css" />
<title>Document</title>
</head>
<body>
<main>
<h1>Compress file</h1>
<form class="form" action="/compress" method="post" enctype="multipart/form-data">
<label class="label">
<span>Choose a compression type:</span>
<select
class="selector"
id="compressionType"
name="compressionType"
required
>
<option value="gzip">gzip</option>
<option value="deflate">deflate</option>
<option value="br">brotli</option>
</select>
</label>
<label class="label">Choose file <input type="file" name="file" /></label>
<button type="submit">send</button>
</form>
</main>
</body>
</html>
17 changes: 17 additions & 0 deletions src/styles/style.css
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Original file line number Diff line number Diff line change
@@ -0,0 +1,17 @@
.label {
display: flex;
flex-direction: column;
gap: 6px;

& input{
display: block;
width: fit-content;
margin: 0;
padding: 0;
}
}

.form {
display: flex;
gap: 20px;
}
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