Class: BubBot::WebServer

Inherits:
Object
  • Object
show all
Defined in:
lib/bub_bot/web_server.rb

Instance Method Summary collapse

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/bub_bot/web_server.rb', line 15

def call(env)
  puts ' --- Got request ---'

  # Ignore retries for now.
  if env['HTTP_X_SLACK_RETRY_NUM']
    puts "Ignoring retry: #{env['HTTP_X_SLACK_RETRY_NUM']}, because #{env['HTTP_X_SLACK_RETRY_REASON']}"
    return [200, {}, ['ok']]
  end

  request = Rack::Request.new(env)

  # For easily checking if the server's up
  if request.path == '/' && request.get?
    return [200, {}, ['ok']]

  # When slack sends us a challenge request
  elsif request.path == '/' && request.post?
    params = parse_params(request)
    return [200, {}, [params[:challenge]]] if params[:challenge]

    event = params[:event]

    # Skip messages from bots
    return [200, {}, []] if event[:subtype] == 'bot_message'

    # Make sure this is in the form of 'bub foo'
    unless event[:text].starts_with?(BubBot.configuration.bot_name + ' ')
      puts "skipping non-bub message"
      return [200, {}, []]
    end

    command = BubBot::Slack::CommandParser.get_command(event[:text])

    puts " --- Running command #{command}"

    # Slack will retry any message that takes longer than 3 seconds to complete,
    # so do all message processing in a thread.
    command_thread = Thread.new do
      response =
        begin
          if command
            command.new(event).run
          else
            BubBot::Slack::Response.new("unknown command", slack_client)
          end
        rescue RespondableError => e
          BubBot::Slack::Response.new(e.message, slack_client)
        end

      response.deliver
    end
    command_thread.abort_on_exception = true

    return [200, {}, []]

  #elsif request.path == '/heroku_hook' && request.post?
    #HerokuInterface.new.handle_heroku_webhook(request.body.read)
    #return [200, {}, []]
  else
    raise BubError, "Failed request: #{request.request_method} #{request.path}"
    err 'invalid request'
  end
rescue BubError => e
  puts "Err: #{e.message}"
  return [400, {}, [e.message]]
end