jeremybradbury

// Crypto PseudoRandom Shuffle: one right way to randomize, esp for gaming
// https://replit.com/@jeremybradbury/CSPRNG-Fisher-Yeats-Shuffle
// NodeJS - CJS version (backward comaptible)
const crypto = require("crypto");

// the secret sauce
const getRndInt = (bytes) =>
  parseFloat(
    parseFloat(crypto.randomBytes(bytes).toString("hex"), 16).toString(10),
    10

jeremybradbury

// written for NodeJS v12
const https = require("https"); // core node
const http = require("http"); // core node
const qs = require("querystring"); // core node
const isProd = process.env.NODE_ENV === "production";
const debug = process.env.DEBUG;

const request = async (
  url = "", // string
  options = {}, // any, or see: https://nodejs.org/api/http.html#new-agentoptions

jeremybradbury

-- source oneliner - all caps letters + 10 digits - base 36 ~2.17B enums
SELECT array_to_string(array(select substr('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789',((random()*(36-1)+1)::integer),1) from generate_series(1,6)),'') AS "Code";

/* 
      Code
    --------
     EY25QI
    (1 row)
*/ 

jeremybradbury

// a very basic Winston replacement, which combines well with a systemd service, to replace most features

const isProd = process.env.NODE_ENV === "production";

const logLog = (level, ...e) => {
  switch (true) {
    case e && !!e.find((o) => o.redact): // params contain an object with a key called redact: {redact: true}
    case isProd && level === "dir": 
    case isProd && level === "log":
    case isProd && level === "info":

jeremybradbury

// blacklist Mozilla/Opera (all browsers) prefix, with optional overrides
export const noBrowsersMiddleware = async (req, res, next) => {
  const client = req.headers["user-agent"];
  switch (true) { // yeah it's still faster than if/else
    // optional overrrides by platform
    // mobile / tablet
    //case client.includes('Android') && !client.includes('Windows'): 
    //case client.includes('iPhone'):     
    //case client.includes('Windows Phone'):

jeremybradbury

(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
'use strict';

const asn1 = exports;

asn1.bignum = require('bn.js');

asn1.define = require('./asn1/api').define;
asn1.base = require('./asn1/base');
asn1.constants = require('./asn1/constants');

jeremybradbury

// you'll likely want the pool creation in another file & imported here instead of a new pool
const pool = new require("pg").Pool(); // left here for completeness
// import { pool } from "../db"

// usage example: `upsertRow("profile", {id:"999", bio: "I like to..." image: "https://..."})`
const upsertRow = async (table, row = {}) => {
  try {
    const fields = Object.keys(row);
    const values = Object.values(row);
    let q = `INSERT INTO ${table} (${fields.reduce((x, y) => `"${x}", "${y}"`)})

jeremybradbury

////
// MIT License
// Copyright (c) 2021 Jeremy Bradbury
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

jeremybradbury

const getWherePhraseFromObj = (where={}) => {
    // input {userid: 11, type: 'admin'}
    // output {wherePhrase: 'WHERE userid = $1 AND type = $2', values:[11,'admin']}
    const keys = Object.keys(where);
    const values = Object.values(where);
    console.info({keys, values});
    let wherePhrase='';
    for (let i=0; i < keys.length; i++) {
        if (! wherePhrase) {
            wherePhrase = 'WHERE '; // first time: i === 0

jeremybradbury

const {
    generateKeyPairSync, 
    privateDecrypt, 
    publicEncrypt,
    constants: { RSA_PKCS1_OAEP_PADDING },
} = require("crypto"); // core node
const { 
    CRYPTIC_PASSPHRASE, // set to enable for your private key (changes require new keys)
    CRYPTIC_GENERATE_KEYS, // set CRYPTIC_GENERATE_KEYS=1 to write key files
 } = process.env;