presidentbeef

#A little Twitter thing to post random quotes from Edsger Dijkstra

require 'yaml'
require 'open-uri'
require 'twitter'  #twitter4r gem
require 'hpricot'

class DijkstraQuote
    class << self

presidentbeef

def dameraulevenshtein(seq1, seq2)
        len1 = seq1.length
        len2 = seq2.length
        oneago = nil
        row = (1..len2).to_a << 0
        len1.times do |i|
                twoago, oneago, row = oneago, row, Array.new(len2) {0} << (i + 1)
                len2.times do |j|
                        cost = seq1[i] == seq2[j] ? 0 : 1
                        delcost = oneago[j] + 1

presidentbeef

#Have a site that is compromised somehow.
#Someone is able to upload malicious .htaccess files that
#redirect based on User Agent being Windows and a whole list
#of possible referers, including Google.com.
#
#This script periodically checks the site and then emails if it gets
#anything other than a 200
require 'net/smtp'

site = "example.com"

presidentbeef

require 'gserver'

class ChatServer < GServer
  def initialize *args
    super

    #Keep a list for broadcasting messages
    @chatters = []

    #We'll need this for thread safety

presidentbeef

/* Parse tab-separated output from Brakeman
 * Use: 
 *  brakeman -o example.tabs
 *  java BrakemanScanner example.tabs
 */

import java.util.regex.Pattern;
import java.util.regex.Matcher;
import java.io.RandomAccessFile;

presidentbeef

require 'cgi'

abort "Please supply hostname" unless ARGV[0]

hostname = ARGV[0]

depth = (ARGV[1] || 12 ).to_i

1.upto(depth) do |n|
  $stderr.puts "Depth: #{n}"

presidentbeef

jruby 1.6.5 (ruby-1.8.7-p330) (2011-10-25 9dcd388) (Java HotSpot(TM) Client VM 1.6.0_26) [linux-i386-java]

Single core, no threads, Linux:

jruby 1.6.5:     60.91 user 279.93 system 7:13.53 elapsed 78% CPU
   --server:     60.51 user 175.19 system 4:55.54 elapsed 79% CPU
ruby 1.9.2-p290: 61.11 user 17.47  system 1:31.40 elapsed 85% CPU

Single core, with threads, Linux:

presidentbeef

require 'ruby_parser'
require 'ruby2ruby'
require 'brakeman'
require 'brakeman/processors/alias_processor'

#Local variables for clarity
def process code
  sexp = RubyParser.new.parse code
  processed_sexp = Brakeman::AliasProcessor.new.process_safely sexp
  pretty_code = Ruby2Ruby.new.process processed_sexp

presidentbeef

$LOAD_PATH.unshift "/home/justin/work/brakeman/lib"
require 'brakeman'
require 'ruby_parser/ruby_parser'
require 'brakeman/tracker'
require 'brakeman/processors/route_processor'

tracker = Brakeman::Tracker.new
tracker.options[:rails3] = true

route_processor = Brakeman::RoutesProcessor.new tracker

presidentbeef

my_rails_app = "your/path/here"
changed_files = ["changed/files/here"]

require 'brakeman'

#Do initial scan
tracker = Brakeman.run :app_path => my_rails_app

puts "Warnings: #{tracker.checks.all_warnings.length}"
puts "Errors: #{tracker.errors.length}"