mariano-aguero

0x2bfa3a690b88f51c03ddf63e16d9ce55818ca417e6f52adb4b0ab326572bb9e3

mariano-aguero

export async function tryGetRevertReason(to: string, from: string, data: string): Promise<string | undefined> {
  const provider = ethers.getDefaultProvider();
  const tx = { to, from, data };
  try {
    await provider.estimateGas(tx);
  } catch {
    const value = await provider.call(tx);
    return hexDataLength(value) % 32 === 4 && hexDataSlice(value, 0, 4) === '0x08c379a0'
      ? defaultAbiCoder.decode(['string'], hexDataSlice(value, 4))
      : undefined;

mariano-aguero

How to setup Let's Encrypt for Nginx on Ubuntu 16.04 (including IPv6, HTTP/2 and A+ SLL rating)

There are two main modes to run the Let's Encrypt client (called Certbot):

• Standalone: replaces the webserver to respond to ACME challenges
• Webroot: needs your webserver to serve challenges from a known folder.

Webroot is better because it doesn't need to replace Nginx (to bind to port 80).

In the following, we're setting up mydomain.com. HTML is served from /var/www/mydomain, and challenges are served from /var/www/letsencrypt.

mariano-aguero

import { Injectable } from "@angular/core";
import { ReplaySubject, Observable } from "rxjs/Rx";

interface Message {
    channel: string;
    data: any;
}

@Injectable()
export class MessageBus {

mariano-aguero

/(?<=\s|:)\(?(?:(0?[1-3]\d{1,2})\)?(?:\s|-)?)?((?:\d[\d-]{5}|15[\s\d-]{7})\d+)/

mariano-aguero

/(?<=\s|:)\(?(?:(0?[1-3]\d{1,2})\)?(?:\s|-)?)?((?:\d[\d-]{5}|15[\s\d-]{7})\d+)/

mariano-aguero

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

var Article = require('../../../models/article');

Those suck for maintenance and they're ugly.

Possible solutions

mariano-aguero

This is an example of how to scaffold API endpoints to list / get / create / update / delete Posts in a Keystone website.

It's a modification of the default project created with the yo keystone generator (see https://github.com/JedWatson/generator-keystone)

Gists don't let you specify full paths, so in the project structure the files would be:

routes-index.js        -->    /routes/index.js         // modified to add the api endpoints
routes-api-posts.js    -->    /routes/api/posts.js     // new file containing the Post API route controllers

mariano-aguero

#!/bin/bash

#Install Laravel Homestead (http://laravel.com/docs/5.0/homestead)
#ssh into Homestead "homestead ssh"
#Run the script using "sudo bash homestead_extras.sh"
#Leave all the default options sugested during the installation, and do not modify any files!!
apt-get update
 
#Additional Packages
apt-get install -y php5-ldap php5-mssql

mariano-aguero

angular.module('utils.filters', [])
.filter('removeAccents', removeAccents);

function removeAccents() {
    return function (source) {
        var accent = [
            /[\300-\306]/g, /[\340-\346]/g, // A, a
            /[\310-\313]/g, /[\350-\353]/g, // E, e
            /[\314-\317]/g, /[\354-\357]/g, // I, i
            /[\322-\330]/g, /[\362-\370]/g, // O, o