init

testserver/index.js

@@ -0,0 +1,45 @@
+const express = require('express');
+const expressStatus = require('express-status-monitor');
+const crypto = require('crypto');
+const fs = require('fs');
+const path = require('path');
+
+const app = express();
+
+app.use(expressStatus());
+
+app.get('/', (req, res) => {
+  res.send('Hello world');
+});
+
+app.get('/regex', (req, res) => {
+  const userAgent = `aaaa${req.headers['user-agent']}`;
+  res.send(`greedy regex (a+)+ ${(/(a+)+/).test(userAgent)}`);
+});
+
+app.get('/crypto', (req, res) => {
+  const buf = crypto.randomBytes(256);
+  res.send(`crypto.randomBytes(256): ${buf}`);
+});
+
+app.get('/file', (req, res) => {
+  const hash = crypto.createHash('sha512');
+  const filename = path.resolve(__dirname, 'package-lock.json');
+  const stream = fs.ReadStream(filename);
+
+  const randomString = Math.random().toString(36).substring(2, 15) + Math.random().toString(36).substring(2, 15);
+  hash.update(randomString);
+
+  stream.on('data', (data) => {
+    hash.update(data);
+  });
+
+  // making digest
+  stream.on('end', () => {
+    res.send(`file hash: ${hash.digest('hex')}`);
+  });
+});
+
+app.listen(3000, () => {
+  console.log('Test server on port 3000!');
+});