Eventernote

.gitignore

events.txt

crawler.rb

require 'mechanize'

class Crawler

  BASE_URL = 'http://www.eventernote.com'
  EVENT_FILE = 'events.txt'

  def retrieve_events username
    mech = init_mech
    event_url = "#{BASE_URL}/users/#{username}/events"

    page_no = 1
    url_list = []

    loop do
      mech.get "#{event_url}?page=#{page_no}"
      events = mech.page.search('.event')
      break if events.empty?
      events.each do |e|
        url_list << (e/'h4'/'a').attr('href').value
      end

      page_no += 1
    end

    puts "#{url_list.size} events retrieved."

    content = ''
    while (url = url_list.pop)
      content += "#{url}\n"
    end

    File.write(EVENT_FILE, content)
  end

  def register_events account
    mech = init_mech
    login_to_twitter mech, account

    success_cnt = 0
    fail_cnt = 0

    events = File.read(EVENT_FILE).split("\n")
    events.each do |event|
      mech.get "#{BASE_URL}#{event}"
      crumb = mech.page.search('#crumb').first.attr('content')
      event_id = event.gsub('/events/', '')
      target = "#{BASE_URL}/api/notes/add?crumb=#{crumb}&event_id=#{event_id}"
      puts target
      mech.get target
      if mech.page.response['status'] == "200 OK"
        success_cnt += 1
      else
        fail_cnt += 1
      end

      sleep 1
    end

    puts '[register events result]'
    puts "success: #{success_cnt}"
    puts "   fail: #{fail_cnt}"
  end

  def delete_events account
    mech = init_mech
    login_to_twitter mech, account

    events = File.read(EVENT_FILE).split("\n")
    events.each do |event|
      mech.get "#{BASE_URL}#{event}"
      note_id = mech.page.search('.right').first.children.attr('href').value.gsub('/notes/','')
      mech.get "#{BASE_URL}/notes/#{note_id}/remove"
    end
  end

  private
  def init_mech
    mech = Mechanize.new
    mech.user_agent_alias = 'Windows IE 7'
    mech.follow_meta_refresh = true

    return mech
  end

  def login_to_twitter mech, account
    login_url = "#{BASE_URL}/auth/twitter"
    mech.get login_url
    mech.page.form do |f|
      f.field_with(:name => 'session[username_or_email]').value = account[:username]
      f.field_with(:name => 'session[password]').value = account[:password]
    end.click_button

    if mech.page.title.match("Authorize an application")
      puts "Invalid twitter username or password"
      exit
    end

    puts "Logined."
  end

end

Gemfile

source 'https://rubygems.org'

gem 'mechanize'

rebirth.rb

require_relative './crawler'

accounts = {}
types = [:old, :new]

types.each do |type|
  info = {}
  print "Enter #{type.to_s} account's username: "
  info[:username] = gets.chomp!
  print "Enter #{type.to_s} account's password: "
  info[:password] = gets.chomp!
  accounts[type] = info
end

crawler = Crawler.new
crawler.retrieve_events(accounts[:old][:username])
crawler.register_events(accounts[:new])
crawler.delete_events(accounts[:old])