Class: Ebooks::Bot

Inherits:
Object
  • Object
show all
Defined in:
lib/twitter_ebooks/bot.rb

Constant Summary collapse

@@all =

List of all defined bots

[]

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(username, &b) ⇒ Bot

Returns a new instance of Bot.



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# File 'lib/twitter_ebooks/bot.rb', line 23

def initialize(username, &b)
  # Set defaults
  @username = username

  # Override with callback
  b.call(self)

  Bot.all.push(self)
end

Instance Attribute Details

#consumer_key ⇒ Object

Returns the value of attribute consumer_key.



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# File 'lib/twitter_ebooks/bot.rb', line 9

def consumer_key
  @consumer_key
end

#consumer_secret ⇒ Object

Returns the value of attribute consumer_secret.



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# File 'lib/twitter_ebooks/bot.rb', line 9

def consumer_secret
  @consumer_secret
end

#oauth_token ⇒ Object

Returns the value of attribute oauth_token.



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# File 'lib/twitter_ebooks/bot.rb', line 9

def oauth_token
  @oauth_token
end

#oauth_token_secret ⇒ Object

Returns the value of attribute oauth_token_secret.



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# File 'lib/twitter_ebooks/bot.rb', line 9

def oauth_token_secret
  @oauth_token_secret
end

#stream ⇒ Object (readonly)

Returns the value of attribute stream.



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# File 'lib/twitter_ebooks/bot.rb', line 14

def stream
  @stream
end

#twitter ⇒ Object (readonly)

Returns the value of attribute twitter.



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# File 'lib/twitter_ebooks/bot.rb', line 14

def twitter
  @twitter
end

#username ⇒ Object

Returns the value of attribute username.



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# File 'lib/twitter_ebooks/bot.rb', line 12

def username
  @username
end

Class Method Details

.all ⇒ Object 



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# File 'lib/twitter_ebooks/bot.rb', line 17

def self.all; @@all; end

.get(name) ⇒ Object 



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# File 'lib/twitter_ebooks/bot.rb', line 19

def self.get(name)
  all.find { |bot| bot.username == name }
end

Instance Method Details

#configure ⇒ Object 



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# File 'lib/twitter_ebooks/bot.rb', line 38

def configure
  TweetStream.configure do |config|
    config.consumer_key = @consumer_key
    config.consumer_secret = @consumer_secret
    config.oauth_token = @oauth_token
    config.oauth_token_secret = @oauth_token_secret
  end

  Twitter.configure do |config|
    config.consumer_key = @consumer_key
    config.consumer_secret = @consumer_secret
    config.oauth_token = @oauth_token
    config.oauth_token_secret = @oauth_token_secret
  end

  needs_stream = [@on_follow, @on_message, @on_mention, @on_timeline].any? {|e| !e.nil?}

  @twitter = Twitter::Client.new
  @stream = TweetStream::Client.new if needs_stream
end

#delay(time, &b) ⇒ Object

Wrapper for EM.add_timer Delays add a greater sense of humanity to bot behaviour



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# File 'lib/twitter_ebooks/bot.rb', line 132

def delay(time, &b)
  time = time.to_a.sample unless time.is_a? Integer
  EM.add_timer(time, &b)
end

#follow(*args) ⇒ Object 



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# File 'lib/twitter_ebooks/bot.rb', line 157

def follow(*args)
  log "Following #{args}"
  @twitter.follow(*args)
end

#log(*args) ⇒ Object 



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# File 'lib/twitter_ebooks/bot.rb', line 33

def log(*args)
  STDOUT.puts "@#{@username}: " + args.map(&:to_s).join(' ')
  STDOUT.flush
end

#on_follow(&b) ⇒ Object 



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# File 'lib/twitter_ebooks/bot.rb', line 168

def on_follow(&b); @on_follow = b; end

#on_mention(&b) ⇒ Object 



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# File 'lib/twitter_ebooks/bot.rb', line 169

def on_mention(&b); @on_mention = b; end

#on_message(&b) ⇒ Object 



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# File 'lib/twitter_ebooks/bot.rb', line 171

def on_message(&b); @on_message = b; end

#on_startup(&b) ⇒ Object 



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# File 'lib/twitter_ebooks/bot.rb', line 167

def on_startup(&b); @on_startup = b; end

#on_timeline(&b) ⇒ Object 



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# File 'lib/twitter_ebooks/bot.rb', line 170

def on_timeline(&b); @on_timeline = b; end

#reply(ev, text, opts = {}) ⇒ Object

Reply to a tweet or a DM. Applies configurable @reply_delay range



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# File 'lib/twitter_ebooks/bot.rb', line 139

def reply(ev, text, opts={})
  opts = opts.clone

  if ev.is_a? Twitter::DirectMessage
    log "Sending DM to @#{ev[:sender][:screen_name]}: #{text}"
    @twitter.direct_message_create(ev[:sender][:screen_name], text, opts)
  elsif ev.is_a? Twitter::Tweet
    log "Replying to @#{ev[:user][:screen_name]} with: #{text}"
    @twitter.update(text, in_reply_to_status_id: ev[:id])
  else
    raise Exception("Don't know how to reply to a #{ev.class}")
  end
end

#scheduler ⇒ Object 



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# File 'lib/twitter_ebooks/bot.rb', line 153

def scheduler
  @scheduler ||= Rufus::Scheduler.new
end

#start ⇒ Object

Connects to tweetstream and opens event handlers for this bot



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# File 'lib/twitter_ebooks/bot.rb', line 60

def start
  configure

  @on_startup.call if @on_startup

  if not @stream
    log "not bothering with stream for #@username"
    return
  end

  log "starting stream for #@username"
  @stream.on_error do |msg|
    log "ERROR: #{msg}"
  end

  @stream.on_inited do
    log "Online!"
  end

  @stream.on_event(:follow) do |event|
    next if event[:source][:screen_name] == @username
    log "Followed by #{event[:source][:screen_name]}"
    @on_follow.call(event[:source]) if @on_follow
  end

  @stream.on_direct_message do |dm|
    next if dm[:sender][:screen_name] == @username # Don't reply to self
    log "DM from @#{dm[:sender][:screen_name]}: #{dm[:text]}"
    @on_message.call(dm) if @on_message
  end

  @stream.userstream do |ev|
    next unless ev[:text] # If it's not a text-containing tweet, ignore it
    next if ev[:user][:screen_name] == @username # Ignore our own tweets

    meta = {}
    mentions = ev.attrs[:entities][:user_mentions].map { |x| x[:screen_name] }

    reply_mentions = mentions.reject { |m| m.downcase == @username.downcase }
    reply_mentions = [ev[:user][:screen_name]] + reply_mentions

    meta[:reply_prefix] = reply_mentions.uniq.map { |m| '@'+m }.join(' ') + ' '
    meta[:limit] = 140 - meta[:reply_prefix].length

    mless = ev[:text]
    begin
      ev.attrs[:entities][:user_mentions].reverse.each do |entity|
        last = mless[entity[:indices][1]..-1]||''
        mless = mless[0...entity[:indices][0]] + last.strip
      end
    rescue Exception
      p ev.attrs[:entities][:user_mentions]
      p ev[:text]
      raise
    end
    meta[:mentionless] = mless

    # To check if this is a mention, ensure:
    # - The tweet mentions list contains our username
    # - The tweet is not being retweeted by somebody else
    # - Or soft-retweeted by somebody else
    if mentions.map(&:downcase).include?(@username.downcase) && !ev[:retweeted_status] && !ev[:text].start_with?('RT ')
      log "Mention from @#{ev[:user][:screen_name]}: #{ev[:text]}"
      @on_mention.call(ev, meta) if @on_mention
    else
      @on_timeline.call(ev, meta) if @on_timeline
    end
  end
end

#tweet(*args) ⇒ Object 



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# File 'lib/twitter_ebooks/bot.rb', line 162

def tweet(*args)
  log "Tweeting #{args.inspect}"
  @twitter.update(*args)
end