visualjeff’s gists

visualjeff / gist:2d0bdd1a78e6249d6823a8cbb2a9c2d6

Last active August 21, 2018 02:55

Chunking arrays

	//You could use faker.js to generate some testData

	function chunk(arr, chunkSize) {
	const R = [];
	for (let i = 0, len = arr.length; i < len; i += chunkSize) {
	R.push(arr.slice(i, i + chunkSize));
	}
	return R;
	}

visualjeff / gist:0ec717c964620b75f050c93ee286a936

Last active August 21, 2018 03:11

Easy way to generate fake user records with faker.js

	const faker = require('faker');

	const testData = new Array(100).fill({}).map((v, i) => {
	return {
	name: faker.name.findName(),
	address: faker.address.streetAddress(),
	city: faker.address.city(),
	state: faker.address.stateAbbr(),
	postal: faker.address.zipCode(),
	email: ''

visualjeff / gist:ca00c48f3bfc95f6551302d47cb45040

Created August 9, 2018 22:04

Generating a good nonce in the browser to prevent replay (in Javascript SPA's)

	const crypto = crypto.subtle;
	async function sha256(message) {
	const msgBuffer = new TextEncoder('utf-8').encode(message); // encode as UTF-8
	const hashBuffer = await crypto.subtle.digest('SHA-256', msgBuffer); // hash the message
	const hashArray = Array.from(new Uint8Array(hashBuffer)); // convert ArrayBuffer to Array
	const hashHex = hashArray.map(b => ('00' + b.toString(16)).slice(-2)).join(''); // convert bytes to hex string
	return hashHex;
	}

	let randomNumber = window.crypto.getRandomValues(new Uint32Array(1)); //Generate randomNumber and store in local storage.

visualjeff / gist:dc8edfde6433b1634a989ac39454ecc1

Created July 30, 2018 20:04

pure Javascript JWT Validation

	<!doctype html>

	<html class="no-js" lang="en">

	<head>
	<!-- Written by: jgilber (a.k.a., visualjeff on github) -->
	<meta charset="utf-8" />
	<meta http-equiv="x-ua-compatible" content="ie=edge">
	<meta name="viewport" content="width=device-width, initial-scale=1.0" />
	<title>JWT Token Validator</title>

visualjeff / gist:9c4aa07fa68e0a1863ca7cf78f376ba2

Last active June 14, 2018 03:30

Basic detokenization script for a VSTS Release "Bash Task". Intended for inline execution. Uses handlebars syntax. Tested on Linux and Windows. Assumes Node V7.6+ is installed. Also assumes files are prefixed with B2C_1A_ and end with an extension of .xml.

	npm install handlebars form-data node-fetch

	s="'use strict';
	const fs = require('fs');
	const path = require('path');
	const handlebars = require('handlebars');

	const source = process.env.source \|\| '.';
	const target = process.env.target \|\| '.';
	const tokens = {

visualjeff / gist:da9449988516a18fd8a1d789aa589ac7

Created April 8, 2018 03:46

Promise.all usage with node-fetch sample code.

	#!/usr/bin/env node
	'use stict';

	const fetch = require('node-fetch');

	const urls = ['http://jsonplaceholder.typicode.com/posts/1',
	'http://jsonplaceholder.typicode.com/posts/2',
	'http://jsonplaceholder.typicode.com/posts/3',
	'http://jsonplaceholder.typicode.com/posts/a',
	'http://jsonplaceholder.typicode.com/posts/5'

visualjeff / gist:48e87da311c681c2cbfcaf9dd5e16910

Created October 4, 2017 22:07

Enable remote syslog on Ubuntu

	Edit /etc/rsyslog.conf

	sudo vim /etc/rsyslog.conf

	Uncomment as needed:

	# provides UDP syslog reception
	#module(load="imudp") <== Uncomment
	#input(type="imudp" port="514") <== Uncomment

visualjeff / gist:aecae12750463a82b73964643bd094cf

Last active August 1, 2017 22:27

HTML for Charley and Alex

	<!doctype html>
	<html class="no-js" lang="en">
	<head>
	<meta charset="utf-8" />
	<meta http-equiv="x-ua-compatible" content="ie=edge">
	<meta name="viewport" content="width=device-width, initial-scale=1.0" />
	<title>AAD JWT decode and validation utilities</title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js" crossorigin="anonymous"></script>
	<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/foundation/6.4.1/css/foundation.min.css" crossorigin="anonymous" />
	<script src="https://cdnjs.cloudflare.com/ajax/libs/foundation/6.4.1/js/foundation.min.js" crossorigin="anonymous"></script>

visualjeff / DataDockerfile

Created April 13, 2017 05:53

How to Dockerize your new scimgateway project

	# To build: docker build --force-rm=true -t scimgateway-data:latest .
	# To run: docker run -d --name scimgateway-data -t scimgateway-data:latest

	FROM busybox:latest
	MAINTAINER Jeffrey Gilbert

	RUN mkdir -p /home/scimgateway/config
	VOLUME /home/scimgateway/config

	CMD ["echo", "Data container for scimgateway created and will now shutdown. No need to run again."]

visualjeff / gist:ff85ff0516cad4ec48571c464a082be7

Created April 5, 2017 05:50

Running Visual Studio Code on Ubuntu or Debian Virtual Image and dealing with a blank screen

	As a workaround, edited file /usr/share/applications/code.desktop

	Replacing

	Exec=/usr/share/code/code --unity-launch %U

	with

	Exec=/usr/share/code/code --disable-gpu --unity-launch %U

Jeff visualjeff