privatize all published photos on Tumblr

list_all_published_photos_on_tumblr.rb

#!/usr/bin/ruby
require 'open-uri'
require 'rexml/document'

user = ''

total = open("http://#{user}.tumblr.com/api/read?type=photo&num=0") do |f|
  doc = REXML::Document.new(f)
  REXML::XPath.first(doc, '//posts/@total').value.to_i
end

posts_per_page = 50
0.step(total-1, posts_per_page) do |start|
  open("http://#{user}.tumblr.com/api/read?type=photo&start=#{start}&num=#{posts_per_page}") do |f|
    doc = REXML::Document.new(f)
    REXML::XPath.each(doc, '//post/@id') {|id| puts id }
  end
  sleep(1)
end

privatize_tumblr_posts_from_list.rb

#!/usr/bin/ruby
require 'rubygems'
require 'mechanize'

email = ''
password = ''

max = ARGV[0] ? ARGV[0].to_i : 1.0/0.0

agent = WWW::Mechanize.new
agent.get('http://www.tumblr.com/login').form_with(:action => '/login') do |form|
  form['email'] = email
  form['password'] = password
  form.submit
end

$stdin.each do |line|
  next if line.to_i > max
  puts line
  agent.get("http://www.tumblr.com/edit/#{line.chomp}").form_with(:action => %r{^/edit/}) do |form|
    form['post[state]'] = 'private'
    form.submit
  end
  sleep(1)
end