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@Tinitto
Tinitto / generateGravatar.js
Last active September 16, 2023 00:23
Generate Gravatar or default to Initials Avatar
/**
This is in a Nodejs environment
*/
const crypto = require('crypto');
module.exports = (
email = '',
name = 'Anonymous',
initialsAvatarBackground = '000000',
@rjz
rjz / crypto-aes-256-gcm-demo.js
Last active November 7, 2025 10:28
example using node.js crypto API with aes-256-gcm
const buffer = require('buffer');
const crypto = require('crypto');
// Demo implementation of using `aes-256-gcm` with node.js's `crypto` lib.
const aes256gcm = (key) => {
const ALGO = 'aes-256-gcm';
// encrypt returns base64-encoded ciphertext
const encrypt = (str) => {
// The `iv` for a given key must be globally unique to prevent
@bsara
bsara / git-ssh-auth-win-setup.md
Last active December 16, 2025 21:21
Setup SSH Authentication for Git Bash on Windows

Setup SSH Authentication for Git Bash on Windows

Prepararation

  1. Create a folder at the root of your user home folder (Example: C:/Users/uname/) called .ssh.
  2. Create the following files if they do not already exist (paths begin from the root of your user home folder):
  • .ssh/config
@ethack
ethack / TypeClipboard.md
Last active December 7, 2025 19:44
Scripts that simulate typing the clipboard contents. Useful when pasting is not allowed.

It "types" the contents of the clipboard.

Why can't you just paste the contents you ask? Sometimes pasting just doesn't work.

  • One example is in system password fields on OSX.
  • Sometimes you're working in a VM and the clipboard isn't shared.
  • Other times you're working via Remote Desktop and again, the clipboard doesn't work in password boxes such as the system login prompts.
  • Connected via RDP and clipboard sharing is disabled and so is mounting of local drives. If the system doesn't have internet access there's no easy way to get things like payloads or Powershell scripts onto it... until now.

Windows

The Windows version is written in AutoHotKey and easily compiles to an executable. It's a single line script that maps Ctrl-Shift-V to type the clipboard.

@pmuellr
pmuellr / cpu-percent.js
Created April 12, 2016 14:59
get CPU usage percent for a process in node, using proposed `process.cpuUsage()` function
'use strict'
// see: https://github.com/nodejs/node/pull/6157
var startTime = process.hrtime()
var startUsage = process.cpuUsage()
// spin the CPU for 500 milliseconds
var now = Date.now()
while (Date.now() - now < 500)
@CMCDragonkai
CMCDragonkai / http_streaming.md
Last active December 24, 2025 06:08
HTTP Streaming (or Chunked vs Store & Forward)

HTTP Streaming (or Chunked vs Store & Forward)

The standard way of understanding the HTTP protocol is via the request reply pattern. Each HTTP transaction consists of a finitely bounded HTTP request and a finitely bounded HTTP response.

However it's also possible for both parts of an HTTP 1.1 transaction to stream their possibly infinitely bounded data. The advantages is that the sender can send data that is beyond the sender's memory limit, and the receiver can act on

@BinaryMuse
BinaryMuse / restful.js
Last active March 17, 2019 08:22
Express API with Async/Await
import express from "express";
/**
* Takes a route handling function and returns a function
* that wraps it after first checking that the strings in
* `reserved` are not part of `req.body`. Used for ensuring
* create and update requests do not overwrite server-generated
* values.
*/
function checkReservedParams(routeHandler, ...reserved) {
@ExpandOcean
ExpandOcean / kivy_cv.py
Created January 7, 2015 06:48
kivy and opencv work together demo
# coding:utf-8
from kivy.app import App
from kivy.uix.image import Image
from kivy.clock import Clock
from kivy.graphics.texture import Texture
import cv2
class KivyCamera(Image):
def __init__(self, capture, fps, **kwargs):
@blixt
blixt / prng.js
Last active January 3, 2026 05:52
A very simple, seedable JavaScript PRNG. NOTE: Please read comments on why this is not a good choice.
// NOTICE 2020-04-18
// Please see the comments below about why this is not a great PRNG.
// Read summary by @bryc here:
// https://github.com/bryc/code/blob/master/jshash/PRNGs.md
// Have a look at js-arbit which uses Alea:
// https://github.com/blixt/js-arbit
/**
@jordansissel
jordansissel / apachedashboard.json
Created March 21, 2014 23:09
Kibana 3.0.0 dashboard for Apache access logs w/ default 'combined' apache log format. Parsed with logstash 1.4.0 using grok, date, geoip, and useragent filters.
{
"title": "Apache Overview",
"services": {
"query": {
"list": {
"2": {
"id": 2,
"type": "topN",
"query": "",
"alias": "",