dividedmind

Simple execution trace diff

At AppLand we're currently working on ways in which we can visualize how changes to the code affect program design and execution. But it turns out you don't need any fancy visuals to be able to tell something useful.

(BTW, see the whole code gallery!)

If you're not familiar with AppLand, at the very basic level, it allows you to record program execution traces. These traces can then be processed to surface interdependencies between code artifacts (such as classes, objects

dividedmind

$ RESTCLIENT_LOG=stderr conjur authn login
Enter your username to log into Conjur: admin
Please enter your password (it will not be echoed): 
RestClient.get "https://cuke-master/authn/cucumber/login", "Accept"=>"*/*", "Accept-Encoding"=>"gzip, deflate", "User-Agent"=>"rest-client/2.0.2 (linux-gnu x86_64) ruby/2.4.1p111"
# => 200 OK | text/html 55 bytes
Logged in
$ RESTCLIENT_LOG=stderr conjur variable values add vaultName/lob8/safe_0/obj_832/password secret123
RestClient.post "https://cuke-master/authn/cucumber/admin/authenticate", "3j1aqpew0f2m02njp46c1pg0rft1j23r8a2zx878p3q5nb251njvkqh", "Accept"=>"*/*", "Accept-Encoding"=>"gzip, deflate", "Content-Length"=>"55", "Content-Type"=>"text/plain", "User-Agent"=>"rest-client/2.0.2 (linux-gnu x86_64) ruby/2.4.1p111"
# => 200 OK | application/json 568 bytes
RestClient.post "https://cuke-master/secrets/cucumber/variable/vaultName%2Flob8%2Fsafe_0%2Fobj_832%2Fpassword", "secret123", "Accept"=>"*/*", "Accept-Encoding"=>"gzip, deflate", "Authorization"=>"Token token=\"e

dividedmind

describe "Foo" do
  before do
    allow_any_instance # ... user thing
    allow_any_instance_of(Event).to receive(:resource_visible) { resource_visible }
  end
  
  let(:perform!) { get "etc" }
  
  context "with an event invisible to both" do
    let(:resource_visible) { true }

dividedmind

class ModBuilder
  def initialize path
    @path = path
    @files = []
  end

  def build! build_path
    puts "building #{self.class.name} in #{build_path}"
    build_mod_files!
    puts "Files: #{@files}"

dividedmind

#!/bin/bash -e
#
# Conjur servers older than v4.4.1 might be susceptible to Logjam attack
# (see weakdh.org for details). While the feasibility of such an attack is
# partly mitigated by network architectures Conjur is typically deployed into,
# the following script allows patching older appliances without upgrading to
# the new version.
#
# To apply the hotfix use `logjam-fix.sh apply`:
#   $ wget https://gist.githubusercontent.com/dividedmind/aa32c62508ceefb8186e/raw/logjam-fix.sh

dividedmind

Keybase proof

I hereby claim:

• I am dividedmind on github.
• I am divide (https://keybase.io/divide) on keybase.
• I have a public key whose fingerprint is FB5E B7FF D5FE A129 6205 CE99 0EC0 BE49 5081 0AEC

To claim this, I am signing this object:

dividedmind

195 <13>1 2013-12-28T03:15:18.713037+00:00 app web.1 - - [authz-ci-conjur] [836de4aadf34a61d9f8f1c550227d0a7] Processing by RolesController#list_members as XML
227 <13>1 2013-12-28T03:15:18.715912+00:00 app web.1 - - [authz-ci-conjur] [836de4aadf34a61d9f8f1c550227d0a7]   Parameters: {"members"=>nil, "account"=>"ci", "role"=>"layer/205cm0/ldap-test"}
202 <13>1 2013-12-28T03:15:18.720253+00:00 app web.1 - - [authz-ci-conjur] [836de4aadf34a61d9f8f1c550227d0a7]   Sequel::Postgres::Database (3.9ms)  BEGIN
296 <13>1 2013-12-28T03:15:18.725630+00:00 app web.1 - - [authz-ci-conjur] [836de4aadf34a61d9f8f1c550227d0a7]   Sequel::Postgres::Database (3.7ms)  SELECT * FROM "roles" WHERE ("id" = ROW('ci', 'layer:205cm0/ldap-test')::"role_id") LIMIT 1
279 <13>1 2013-12-28T03:15:18.738816+00:00 app web.1 - - [authz-ci-conjur] [836de4aadf34a61d9f8f1c550227d0a7]   Sequel::Postgres::Database (12.0ms)  SELECT * FROM "roles" WHERE ("id" = ROW('ci', 'user:kgilpin')::"role_id") LIMIT 1

dividedmind

sigi = sigma.instances[1];

var prefix = /.{7}/;

sigi.iterNodes(function (node) {
  node.label = node.attr.kind + ": " + node.attr.name.replace(prefix, '');
});

WebFontConfig = {
  google: { families: [ 'Lato::latin' ] }

dividedmind

#!/usr/bin/env ruby

# solution of http://uva.onlinejudge.org/external/13/1339.pdf

ARGF.map {|x| x.strip.chars.group_by(&:to_s).values.map(&:length).sort }.
  each_slice(2) {|a, b| puts a == b ? 'YES' : 'NO' }

dividedmind

#!/usr/bin/env ruby

# I opted for a more conventional mapping, as in
# https://en.wikipedia.org/wiki/File:Telephone-keypad2.svg
MAP = {
  '2' => 'abc',
  '3' => 'def',
  '4' => 'ghi',
  '5' => 'jkl',
  '6' => 'mno',