sparrovv

#!/usr/bin/env ruby

require 'json'

def uuid_to_hex(uuid)
  hex = uuid.gsub(/[{}-]/, "")
  msb = hex[0,16]
  lsb = hex[16,16]
  msb = msb[14, 2] + msb[12, 2] + msb[10, 2] + msb[8, 2] + msb[6, 2] + msb[4, 2] + msb[2, 2] + msb[0, 2]
  lsb = lsb[14, 2] + lsb[12, 2] + lsb[10, 2] + lsb[8, 2] + lsb[6, 2] + lsb[4, 2] + lsb[2, 2] + lsb[0, 2]

sparrovv

# http://waitbutwhy.com/2016/03/the-jellybean-problem.html

Bean = Struct.new(:state)

state_of_the_one_i_picked_at_the_beginning = []
state_of_the_last_one_on_the_stump = []

1000.times do
  # create beans
  bean1 = Bean.new :dead

sparrovv

# brew install jq

cat elb-logs.log | elb_parser.rb | jq 'select(.elb_status_code != "200")'
cat elb-logs.log | elb_parser.rb | jq '.'

sparrovv

Keybase proof

I hereby claim:

• I am sparrovv on github.
• I am sparrovv (https://keybase.io/sparrovv) on keybase.
• I have a public key whose fingerprint is 0FCB D37F 74E3 464B CBC4 E842 2675 4E59 47A0 C4BD

To claim this, I am signing this object:

sparrovv

#!/usr/bin/env ruby

# gem install net-ping

# Usage
# sudo ./wifimonitor.rb

require 'net/ping'
require 'logger'

sparrovv

Keybase proof

I hereby claim:

• I am sparrovv on github.
• I am sparrovv (https://keybase.io/sparrovv) on keybase.
• I have a public key whose fingerprint is 1A34 62C1 D773 504B 260A 436D F963 E58F 35FE 89A4

To claim this, I am signing this object:

sparrovv

class UTF8Validator

  class InvalidUTF8Character < Exception; end

  VALIDATE_ENV_KEYS = [
    "QUERY_STRING",
    "REQUEST_PATH",
    "REQUEST_URI",
    "rack.request.form_vars" # POST data
  ]

sparrovv

# I don't remember where I found it but it's useful in case of errors like: Net::HTTP::Persistent::Error: too many connection resets... 
module Kernel
  # Options
  # =======
  # * :tries  Number of retries to perform. Defaults to 1.
  #           Note this means it actually tries 2 times!
  # * :on -   The Exception on which a retry will be performed. Defaults to
  #           Exception, which retries on any Exception.
  # * :delay - Delay in seconds before the next try (optional)
  #

sparrovv

var Asspect = (function(){

  var add = function(object, functionName, opts){
    object = object || window;

    var originalFunction = object[functionName];

    // check if function exists

    object[functionName] = function(){

sparrovv

# Example of simple webservlet, that can run on your computer and be triggered by http 
require 'webrick'

class Simple < WEBrick::HTTPServlet::AbstractServlet
  
  def do_GET(request, response)
    status, content_type, body = do_some_stuff(request)
    #system('touch ~/yeah.file')
    response.status = status
    response['Content-Type'] = content_type