Craig P Hicks craigphicks

Chrome Version : Chromium 83.0.4103.116 snap Other browsers tested: Add OK or FAIL, along with the version, after other browsers where you have tested this issue:

Firefox: OK, "Mozilla Firefox 78.0.1" Chromium (non-span): OK, "Chromium 83.0.4103.61 Built on Ubuntu , running on Ubuntu 18.04"

What steps will reproduce the problem?

https://www.openssh.com/features.html

X11 forwarding (which also encrypts X Window System traffic)

X11 forwarding allows the encryption of remote X windows traffic, so that nobody can snoop on your remote xterms or insert malicious commands. The program automatically sets DISPLAY on the server machine, and forwards any X11 connections over the secure channel. Fake Xauthority information is automatically generated and forwarded to the remote machine; the local client automatically examines incoming X11 connections and replaces the fake authorization

A singleton makes sense when it prevent multiple access to a resource than must not be accessed in that way. But sometimes a singleton design is used because it is sufficient for expected usage. But that may block expanded usage unecessarily.

ES6 dynamic import can import a singelton module into a closure allowing a singleton to become a non-singleton class. See the file yargs-class.mjs below.

The result of test-yargs0class.mjs -

argv[0]= {

x=10;
function test(){
  var x=20;
  var obj = {x:30};
  function logargs(t,arg1,arg2,arg3,arg4) { 
    console.log(`(${t}) this.x=${this.x},x=${x},obj.x=${obj.x},${arg1},${arg2},${arg3},${arg4.x}`); 
  }
  logargs("A",this.x,x,obj.x,obj);
 setTimeout(logargs,0,"B",this.x,x,obj.x,obj);

Forwarding X11 over ssh without using xauth

local -- the local machine serving an Xserver.
remote -- the remote machine serving the application which drives the data going to the Xserver

Remote /etc/ssh/sshd_config:

X11Forwarding no
X11DisplayOffset 10
X11UseLocalhost yes

	var net = require('net');
	var jsesc = require('jsesc');

	var ctrlC=false;
	//var qwrite=[];
	async function Socketing(sock){
	return await new Promise((res,rej)=>{
	// Event: 'data'
	sock.on('data', (d) => {
	console.log(`sock data: ${jsesc(Buffer.from(d).toString(),{es6:true})}`);

	async function readStreamToEnd(rstream){
	rstream.resume();
	let prom=new Promise((resolve,reject)=>{
	var buf = Buffer('');
	rstream.on('data', function(newbuf) { buf=Buffer.concat([buf,newbuf]); });
	rstream.on('end', function() { resolve(buf.toString()); });
	rstream.on('error', function(e) { reject(e); });
	});
	return await prom;
	}

	#!/bin/bash
	# copyright craigphicks 2020 - free to use with due attribution

	confirm_args(){
	logger -t "confirm_args" -- "#=${#}"
	for index in `seq 0 ${#}` ; do
	eval item=\$$index
	logger -t "confirm_args" -- "[$index] ${item}"
	done
	}

	function makeNonCryptoRandomAlphaNumString(length) {
	function tf(n) {
	if (n < 26) return 65 + n
	else if (n < 52) return 97 + n - 26
	else return 48 + n - 52
	}
	var result = ''
	for (var i = 0; i < length; i++) {
	let idx = Math.floor(Math.random() * 62)
	result += String.fromCharCode(tf(idx))

	function showDeep(t){
	let o=t
	do {
	console.log(`--- ${o.constructor.name}`)
	for (let k of Reflect.ownKeys(o)) {
	let d = Reflect.getOwnPropertyDescriptor(o,k)
	if (JSON.stringify(d.value)!==undefined) {
	console.log(`${k} : ${JSON.stringify(d.value)}`)
	if (k==='stack')
	console.log("") // funky