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sudo wireshark
# go to:
# Edit -> Preferences -> Protocols -> TLS (you can type) -> under "(Pre)-Master-Secret log filename
" enter in input "/tmp/ssl-key.log"
# then start capture

# curl
SSLKEYLOGFILE=/tmp/ssl-key.log curl https://example.com

# firefox (don't forget to disable http2 in about:config and restart)

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SSH Cheat Sheet

This sheet goes along with this SSH YouTube tutorial

Login via SSH with password (LOCAL SERVER)

$ ssh brad@192.168.1.29

Create folder, file, install Apache (Just messing around)

$ mkdir test

$ cd test

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Overview of Python Virtual Environments

This guide is targetted at intermediate or expert users who want low-level control over their Python environments.

When you're working on multiple coding projects, you might want a couple different version of Python and/or modules installed. This helps keep each workflow in its own sandbox instead of trying to juggle multiple projects (each with different dependencies) on your system's version of Python. The guide here covers one way to handle multiple Python versions and Python environments on your own (i.e., without a package manager like conda). See the Using the workflow section to view the end result.

h/t @sharkinsspatial for linking me to the perfect cartoon

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wget --no-check-certificate --content-disposition https://github.com/joyent/node/tarball/v0.7.1
# --no-check-cerftificate was necessary for me to have wget not puke about https
curl -LJO https://github.com/joyent/node/tarball/v0.7.1

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# Formats a +number+ into an abbreviated string suitable for
# displaying social media type metrics
#
# ==== Options
# * start_at - The first number to start abbreviating, defaults
#   to 10_000. Certain metrics may want to start at e.g. 1000.
#
# ==== Examples
# number_to_social(123)                     # => 123
# number_to_social(1457)                    # => 1457

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class SessionsController < ApplicationController
  def create
    ToDoList::SignIn.new(sign_in_params).call({
      success: ->(message) { redirect_to dashboard_user_path, notice: t(message) },
      failure: ->(message) { render :new, error: t(message) }
    })
  end
end

module ToDoList

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In your local clone of your forked repository, you can add the original GitHub repository as a "remote". ("Remotes" are like nicknames for the URLs of repositories - origin is one, for example.) Then you can fetch all the branches from that upstream repository, and rebase your work to continue working on the upstream version. In terms of commands that might look like:

Add the remote, call it "upstream":

git remote add upstream https://github.com/whoever/whatever.git

Fetch all the branches of that remote into remote-tracking branches, such as upstream/master:

git fetch upstream

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Thoughts about Rails Presenters

This is a collection of links, examples and rants about Presenters/Decorators in Rails.

---

The "Decorator" pattern slowly started gaining popularity in Rails several years ago. It is not part of core Rails, and there's many different interpretations about how it should work in practice.

Jay Fields wrote about it in 2007 (before he switched back to Java and then Clojure): http://blog.jayfields.com/2007/03/rails-presenter-pattern.html

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#!/usr/bin/env bash
#
# drip_ssh_proxy.sh
#
# Attempts to pull private ip address from hostname pattern.
# assumes ruby is present on the system.

HOST_PORT="$1"
if [[ -z "$HOST_PORT" ]]; then
  >&2 echo "host:port is required"

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Friendly URLs

By default, Rails applications build URLs based on the primary key -- the id column from the database. Imagine we have a Person model and associated controller. We have a person record for Bob Martin that has id number 6. The URL for his show page would be:

/people/6

But, for aesthetic or SEO purposes, we want Bob's name in the URL. The last segment, the 6 here, is called the "slug". Let's look at a few ways to implement better slugs.