check_friends.rb

# -*- coding: utf-8 -*-

# require 'koala'

# Doesn't work
# @graph = Koala::Facebook::API.new("your_token")
# friends = @graph.get_connections("me", "friends")
# puts friends.count
# friends.each do |friend|
# puts friend
# end

require 'rubygems'
require 'selenium-webdriver'
require 'active_record'

ActiveRecord::Base.establish_connection(
  :adapter  => "mysql2",
  :host     => "localhost",
  :username => "yourusername",
  :password => "yourpass",
  :database => "fbfriends"
)

class Friend < ActiveRecord::Base
end

class Unfriend < ActiveRecord::Base
end

class Scan < ActiveRecord::Base
end

class Inactive < ActiveRecord::Base
end

scan_time = Time.now
fb_friends = []
old_friends_here = []
inactives = []

@driver = Selenium::WebDriver.for :firefox
@driver.get "https://facebook.com"
@driver.find_element(:id, "email").click
@driver.find_element(:id, "email").clear
@driver.find_element(:id, "email").send_keys "youremail"
sleep 1
@driver.find_element(:id, "pass").click
@driver.find_element(:id, "pass").clear
@driver.find_element(:id, "pass").send_keys "yourpassword"
@driver.find_element(:id, "loginbutton").click
sleep 1
@driver.get "https://www.facebook.com/yourusername/friends"
sleep 1
el = @driver.find_element(:id, "pageFooter")

# Count for preventing lagging, so if for six loops it still the same number, then break
@friends_num = 0
@count = 0
while @driver.find_elements(:css, ".fsl.fwb.fcb").count < 1000 do
  @driver.action.move_to(el).perform
  sleep 1
  puts @driver.find_elements(:css, "#pagelet_timeline_medley_friends .fsl.fwb.fcb").count
  if @friends_num == @driver.find_elements(:css, "#pagelet_timeline_medley_friends .fsl.fwb.fcb").count && @count == 6
    break
  elsif @friends_num == @driver.find_elements(:css, "#pagelet_timeline_medley_friends .fsl.fwb.fcb").count
    @count = @count + 1
    @friends_num = @driver.find_elements(:css, "#pagelet_timeline_medley_friends .fsl.fwb.fcb").count
  else
    @count = 0
    @friends_num = @driver.find_elements(:css, "#pagelet_timeline_medley_friends .fsl.fwb.fcb").count
  end
end

# Seed fb_friends array with fetched friends from facebook
@driver.find_elements(:css, "#pagelet_timeline_medley_friends .fsl.fwb.fcb a").each do |friend|
  if friend.text != ""
    if friend.attribute('ajaxify')
      inactives << friend.text
    elsif
      fb_friends << friend.text
    end
  end
end

# Check if old friends are still friends
Friend.all.each do |friend|
  old_friends_here << friend.name unless fb_friends.include?(friend.name)
end

puts "Inactives:"
puts inactives
puts "End inactives"
# Remove inactives
inactives.each do |friend|
  if friend != ''
    if Inactive.where(name: friend).first.nil?
      Inactive.create(name: friend, scanned_at: scan_time)
      Friend.where(name: friend).first.delete rescue ''
    end
  end
end

puts "Friends who deleted me:"
puts old_friends_here
puts "End of friends who deleted me"
# Remove old friends
old_friends_here.each do |friend|
  if friend != ''
    if Unfriend.where(name: friend).first.nil?
      Unfriend.create(name: friend, scanned_at: scan_time)
      Friend.where(name: friend).first.delete rescue ''
    end
  end
end

# Check for new friends and add them
fb_friends.each do |friend|
  friend_row = Friend.where(name: friend).first
  Friend.create(name: friend, scanned_at: scan_time) if friend_row.nil?
end
Scan.create(scanned_at: scan_time, friends_number: fb_friends.count)

sleep 10

@driver.close