httpでBasicAuth

app.ts

import http from 'http';
import { Buffer } from 'buffer';

const server = http.createServer();

server.on('request', (req:http.IncomingMessage, res:http.ServerResponse) => {
    if(req.headers.authorization) { // req.headers.authorization = "Basic a3V6dW5vaGE6YWFh"
        const encodedPass = req.headers.authorization.split(' ')[1];  // encodedPass = "a3V6dW5vaGE6YWFh"
        const decodePass = Buffer.from(encodedPass, 'base64').toString('utf8'); // decodedPass = "kuzunoha:hogehoge" 
        const auth = {username:decodePass.split(':')[0], password:decodePass.split(':')[1]}; // auth = {username:kuzunoha, password:hogehoge}
        if(auth.username == 'kuzunoha' && auth.password == 'hogehoge'){
            res.writeHead(200, {'Content-Type':'text/plain', 'Accept-Charset':'utf-8'});
            res.end('success\n');
            return;
        }
    }
    res.writeHead(401, {'Content-Type':'text/plain', 'Accept-Charset':'utf-8', 'WWW-Authenticate': `Basic realm="Enter username and password."`});
    res.end('401 not authenticated\n');
    return;
});

server.listen(9000, ()=>{
    console.log('listen http://127.0.0.1:9000\n');
});