Class: Slackbotsy::Bot

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

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ Bot

Returns a new instance of Bot.



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# File 'lib/slackbotsy/bot.rb', line 11

def initialize(options)
  @options = options

  ## use set of tokens for (more or less) O(1) lookup on multiple channels
  @options['outgoing_token'] = Array(@options['outgoing_token']).to_set
  
  @regexes = {}
  setup_incoming_webhook    # http connection for async replies
  yield if block_given?     # run any hear statements in block
end

Instance Method Details

#attach(text, attachment, options = {}) ⇒ Object 



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# File 'lib/slackbotsy/bot.rb', line 49

def attach(text, attachment, options = {})
  options = { attachments: [ attachment ] }.merge(options)
  say(text, options)
end

#encode_payload(text, options = {}) ⇒ Object

format to send text to incoming webhook



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# File 'lib/slackbotsy/bot.rb', line 31

def encode_payload(text, options = {})
  payload = {
    text:     text,
    username: @options['name'],
    channel:  @options['channel'].gsub(/^#?/, '#'), # ensure channel begins with #
  }.merge(options)

  "payload=#{payload.to_json.to_s}"
end

#eval_scripts(*files) ⇒ Object

pass list of files containing hear statements, to be opened and evaled



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

def eval_scripts(*files)
  files.flatten.each do |file|
    self.instance_eval File.open(file).read
  end
end

#handle_item(msg) ⇒ Object

check message and run blocks for any matches



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# File 'lib/slackbotsy/bot.rb', line 67

def handle_item(msg)
  return nil unless @options['outgoing_token'].include? msg[:token] # ensure messages are for us from slack
  return nil if msg[:user_name] == 'slackbot'  # do not reply to self
  return nil unless msg[:text].is_a?(String) # skip empty messages

  ## loop things to look for and collect immediate responses
  ## rescue everything here so the bot keeps running even with a broken script
  responses = @regexes.map do |regex, proc|
    if mdata = msg[:text].strip.match(regex)
      begin
        Slackbotsy::Message.new(self, msg).instance_exec(mdata, &proc)
      rescue => err
        err
      end
    end
  end

  ## format any replies for http response
  if responses
    { text: responses.compact.join("\n") }.to_json
  end
end

#hear(regex, &block) ⇒ Object

add regex to things to hear



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# File 'lib/slackbotsy/bot.rb', line 55

def hear(regex, &block)
  @regexes[regex] = block
end

#say(text, options = {}) ⇒ Object

send text to slack using incoming webhook



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# File 'lib/slackbotsy/bot.rb', line 42

def say(text, options = {})
  request = Net::HTTP::Post.new(@uri.request_uri)
  request.body = encode_payload(text, options)
  response = @http.request(request)
  return nil                # so as not to trigger text in outgoing webhook reply
end

#setup_incoming_webhook ⇒ Object

setup http connection for sending async incoming webhook messages to slack



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

def setup_incoming_webhook
  @uri  = URI.parse "https://#{@options['team']}.slack.com/services/hooks/incoming-webhook?token=#{@options['incoming_token']}"
  @http = Net::HTTP.new(@uri.host, @uri.port)
  @http.use_ssl = true
  @http.verify_mode = OpenSSL::SSL::VERIFY_PEER
end