Jacob Burenstam Linder buren

Co-Founder WasHere | Forbes 30 under 30 - 2018 | Nominated by MIT Technology Review Innovators Under 35 - 2019

buren / aes-crypto.test.ts

Created May 17, 2025 08:02

Encrypts a string using AES-GCM with the Web Crypto API

	import {
	encryptAESGCM,
	decryptAESGCM,
	generateSecretKey,
	base64UrlDecode,
	base64UrlEncode
	} from "./aes-crypto";

	describe("AES-GCM Encryption and Decryption", () => {
	const secretKey = "VGVzdEtleTI1NiBiaXRzIG11c3QgYmUgMzIgYnl0ZXM="; // Base64 encoded 32 bytes

buren / encryptAESGCM.php

Created February 10, 2025 16:43

	<?php
	/**
	* Encrypts an email address using AES-256 GCM.
	*
	* @param string $email The email address to encrypt.
	* @param string $secretKeyBase64 The base64 encoded secret key (32 bytes when decoded).
	* @return string The URL-safe base64 encoded string of the combined nonce and ciphertext. Returns an empty string on error.
	* @throws Exception If the key is invalid or encryption fails.
	*/
	function encryptEmailAESGCM(string $email, string $secretKeyBase64): string {

buren / Trans.tsx

Created August 25, 2023 14:43

Super minimalistic I18n lib in TypeScript.

	import React, { ReactElement, ReactNode } from "react";
	import { I18nKey, i18n } from "./i18n";

	interface TransProps {
	i18nKey: I18nKey;
	text?: string;
	[x: string]: ReactNode;
	}

	const Trans = ({ i18nKey, text, ...interpolationData }: TransProps) => {

buren / json_csv_converter.rb

Last active May 2, 2023 12:27

Flatten JSON to a two column CSV with defined separator and convert it back from CSV to JSON again. Useful for JSON I18n files amongst other things.

	#!/usr/bin/env ruby

	USAGE = <<~DOC
	USAGE:
	ruby json_csv_converter.rb <in_file> <separator(optional)>

	EXAMPLES:
	Convert JSON to CSV
	$ ruby json_csv_converter.rb file.json

buren / hmac_sha256.js

Created November 6, 2022 11:00

HMAC SHA256

	import crypto from 'crypto'

	// inputs
	const key = 'notsosecret'
	const method = 'POST'
	const url = 'https://example.com'
	const timestamp = '2022-11-03T01:08:19.138Z'
	const data = '{"data":{"partnerId":"1","tokenId":47210468}}'

	// generate signature

buren / firebase-function-httpbin.ts

Created November 2, 2022 21:26

httpbin built with on a firebase function stored in firestore

	import { firestore } from 'firebase-admin';
	import * as functions from 'firebase-functions';

	const region = 'europe-west1';
	const firestoreCollection = 'webhook-posts';
	export const httpBin = functions
	.region(region)
	.https.onRequest(async ({ headers, body }, response) => {
	const data = { headers, body };
	await firestore().collection(firestoreCollection).doc().create(data);

buren / index.ts

Created September 5, 2022 16:19

Recursively redact keys from object.

	recursiveRedact({ a: 1, b: { a: 1, b: 2 } }, new Set(['a']))
	// Result
	// {
	// "a": "[redacted]",
	// "b": {
	// "a": "[redacted]",
	// "b": 2
	// }
	// }

buren / .github-open.bash

Created February 12, 2020 14:38

	# USAGE
	# In any local GitHub repository run
	# $ github_open

	github_open() {
	local remotename="${@:-origin}"
	local remote="$(git remote -v \| awk '/^'"$remotename"'.*$push$$/ {print $2}')"
	[[ "$remote" ]] \|\| return
	local user_repo="$(echo "$remote" \| perl -pe 's/.*://;s/\.git$//')"
	open "https://github.com/$user_repo"

buren / snippets.cson

Created September 11, 2018 17:59

Atom snippet - Ruby method missing template

	'.source.ruby':
	'def method_missing .. end':
	'prefix': 'defmm'
	'body':
	'''
	def method_missing(method_name, *arguments, &block)
	if ${1}.respond_to?(method_name)
	${1}.public_send(method_name, *arguments, &block)
	else
	super

buren / check_redirect.rb

Created August 16, 2018 12:58

Given a CSV file with expected redirects - verify that each redirect is performed correctly.