1 server.rb

require 'yaml'
require 'twitter'

#OpenSSL::SSL::VERIFY_PEER = OpenSSL::SSL::VERIFY_NONE

CONFIG_FILE = File.dirname(__FILE__) + "/config.yaml"
config_data = YAML.load_file(CONFIG_FILE)

stream_client = Twitter::Streaming::Client.new do |config|
  config.consumer_key        = config_data['consumer_key']
  config.consumer_secret     = config_data['consumer_secret']
  config.access_token        = config_data['access_token']
  config.access_token_secret = config_data['access_token_secret']
end

rest_client = Twitter::REST::Client.new do |config|
  config.consumer_key        = config_data['consumer_key']
  config.consumer_secret     = config_data['consumer_secret']
  config.access_token        = config_data['access_token']
  config.access_token_secret = config_data['access_token_secret']
end

stream_client.user do |object|

  next unless object.is_a?(Twitter::Tweet)
  next unless object.in_reply_to_screen_name == "sort_rb"

  text = object.text.dup
  text.gsub!(/@[A-Za-z0-9_]+ /, "")
  text.gsub!(/https?:\/\/[^ ]+/, "")

  text = text.split(//).sort.join.strip

  reply = "@#{object.user.screen_name} #{text}"

  rest_client.update(reply, { in_reply_to_status: object })

end

2 config.yaml

consumer_key: xxxxxxxx
consumer_secret: xxxxxxxx
access_token: xxxxxxxx
access_token_secret: xxxxxxxx

3 memo.md

OpenSSL::SSL::VERIFY_PEER = OpenSSL::SSL::VERIFY_NONE

を不要にするためには、

# apt-get install ca-certificates

とする。(Windowsはわかりません)

consumer_key などは、 https://apps.twitter.com で確認。 （実際に使うアカウントでログインしよう）