Chris Veness chrisveness

## getqueryarg-splitfor.js
/**
 * Returns specified argument from query string.
 *
 * @params  {string} key - Argument to be returned.
 * @returns {string} Value of key ('' for ?arg=, null for ?arg, undefined if not present).
 */
function getQueryArg(key) {
    var srch = location.search.substring(1);  // lose the initial '?'
    var args = srch.split(/[&;]/);            // list of field=value pairs
    for (var i=0; i<args.length; i++) {       // for each arg

## getqueryarg-regexp.js
/**
 * Returns specified argument from query string.
 *
 * @params  {string} key - Argument to be returned.
 * @returns {string} Value of key ('' for ?arg=, null for ?arg, undefined if not present).
 */
function getQueryArg(key) {
    // look for key prefixed by ?/&/;, (optionally) suffixed
    // by =val (using lazy match), followed by &/;/# or EOS
    var re = new RegExp('[?&;]'+key+'(=(.*?))?([&;#]|$)');

## hyphen-camel.js
/**
 * Returns camel-cased equivalent of (lower-case) hyphenated string.
 *
 * To enable round-tripping, hyphens not followed by a-z are left intact
 * (can be checked for and/or removed manually if required).
 *
 * Only transforms ASCII capitals (lack of JavaScript Unicode regexp).
 */
function hyphenToCamel(str) {
    // for Unicode transforms, replace [a-z] with \p{Ll} if available

## app.js
var koa        = require('koa');
var session    = require('koa-session');
var flash      = require('koa-flash');
var router     = require('koa-router');
var handlebars = require("koa-handlebars");

var app = koa();

app.keys = ['foo'];
app.use(session({ domain: '.localhost' }, app)); // THIS FAILS

## app.js
var koa     = require('koa');
var session = require('koa-session');

var app = module.exports = koa();

app.keys = ['some secret hurr'];
app.use(session({ domain: '.app.localhost' }, app)); // THIS WORKS IN BROWSER BUT FAILS IN SUPERTEST
//app.use(session(app)); // THIS WORKS EITHER WAY

app.use(function*() {

## index.html
<!doctype html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>AES client/server test</title>
    <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/normalize/3.0.3/normalize.min.css">
    <style>
        body    { font-size: 80%; padding: 1em; }
        form    { margin-top: 2em; }
        label   { display: inline-block; width: 6em; }

## mongodb-objectid.js
/**
 * Generates a MongoDB-style ObjectId in Node.js. Uses nanosecond timestamp in place of counter;
 * should be impossible for same process to generate multiple objectId in same nanosecond? (clock
 * drift can result in an *extremely* remote possibility of id conflicts).
 *
 * @returns {string} Id in same format as MongoDB ObjectId.
 */
function objectId() {
    const os = require('os');
    const crypto = require('crypto');

## standard-deviation.js
/**
 * Returns standard deviation of set of values.
 *
 * @param   {number[]} values - Array of values.
 * @returns {number}   Standard devation of values.
 */
function stdDeviation(values) {
    const avgOfValues = average(values);
    const squaresOfDiffs = values.map(value => (value-avgOfValues)**2);
    const avgOfSquaresOfDiffs = average(squaresOfDiffs);

## crypto-sha.js
/**
 * Returns SHA-256 hash from supplied message.
 *
 * @param   {String} message.
 * @returns {String} hash as hex string.
 *
 * @example
 *   sha256('abc').then(hash => console.log(hash));
 *   const hash = await sha256('abc');
 */

## crypto-pbkdf2.js
/**
 * Returns PBKDF2 derived key from supplied password.
 *
 * Stored key can subsequently be used to verify that a password matches the original password used
 * to derive the key, using pbkdf2Verify().
 *
 * @param   {String} password - Password to be hashed using key derivation function.
 * @param   {Number} [iterations=1e6] - Number of iterations of HMAC function to apply.
 * @returns {String} Derived key as base64 string.
 *
	/**
	* Returns specified argument from query string.
	*
	* @params {string} key - Argument to be returned.
	* @returns {string} Value of key ('' for ?arg=, null for ?arg, undefined if not present).
	*/
	function getQueryArg(key) {
	var srch = location.search.substring(1); // lose the initial '?'
	var args = srch.split(/[&;]/); // list of field=value pairs
	for (var i=0; i<args.length; i++) { // for each arg
	/**
	* Returns camel-cased equivalent of (lower-case) hyphenated string.
	*
	* To enable round-tripping, hyphens not followed by a-z are left intact
	* (can be checked for and/or removed manually if required).
	*
	* Only transforms ASCII capitals (lack of JavaScript Unicode regexp).
	*/
	function hyphenToCamel(str) {
	// for Unicode transforms, replace [a-z] with \p{Ll} if available
	var koa = require('koa');
	var session = require('koa-session');
	var flash = require('koa-flash');
	var router = require('koa-router');
	var handlebars = require("koa-handlebars");

	var app = koa();

	app.keys = ['foo'];
	app.use(session({ domain: '.localhost' }, app)); // THIS FAILS
	var koa = require('koa');
	var session = require('koa-session');

	var app = module.exports = koa();

	app.keys = ['some secret hurr'];
	app.use(session({ domain: '.app.localhost' }, app)); // THIS WORKS IN BROWSER BUT FAILS IN SUPERTEST
	//app.use(session(app)); // THIS WORKS EITHER WAY

	app.use(function*() {
	<!doctype html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<title>AES client/server test</title>
	<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/normalize/3.0.3/normalize.min.css">
	<style>
	body { font-size: 80%; padding: 1em; }
	form { margin-top: 2em; }
	label { display: inline-block; width: 6em; }
	/**
	* Generates a MongoDB-style ObjectId in Node.js. Uses nanosecond timestamp in place of counter;
	* should be impossible for same process to generate multiple objectId in same nanosecond? (clock
	* drift can result in an extremely remote possibility of id conflicts).
	*
	* @returns {string} Id in same format as MongoDB ObjectId.
	*/
	function objectId() {
	const os = require('os');
	const crypto = require('crypto');
	/**
	* Returns standard deviation of set of values.
	*
	* @param {number[]} values - Array of values.
	* @returns {number} Standard devation of values.
	*/
	function stdDeviation(values) {
	const avgOfValues = average(values);
	const squaresOfDiffs = values.map(value => (value-avgOfValues)**2);
	const avgOfSquaresOfDiffs = average(squaresOfDiffs);
	/**
	* Returns SHA-256 hash from supplied message.
	*
	* @param {String} message.
	* @returns {String} hash as hex string.
	*
	* @example
	* sha256('abc').then(hash => console.log(hash));
	* const hash = await sha256('abc');
	*/
	/**
	* Returns PBKDF2 derived key from supplied password.
	*
	* Stored key can subsequently be used to verify that a password matches the original password used
	* to derive the key, using pbkdf2Verify().
	*
	* @param {String} password - Password to be hashed using key derivation function.
	* @param {Number} [iterations=1e6] - Number of iterations of HMAC function to apply.
	* @returns {String} Derived key as base64 string.
	*