Class: Rack::BlockSlackbot

Inherits:
Object
  • Object
show all
Defined in:
lib/rack/block_slackbot.rb

Constant Summary collapse

SLACKBOT_UA_PATTERN =

Pattern to match Slack’s robots. Documentation here: api.slack.com/robots

/\ASlack(bot-LinkExpanding|-ImgProxy|bot) /.freeze
DEFAULT_RESPONSE = 
[
  403,
  { "Content-Type" => "text/plain" }.freeze,
  ["Bad Robot"].freeze
].freeze
HTTP_USER_AGENT = 
"HTTP_USER_AGENT".freeze

Instance Method Summary collapse

Constructor Details

#initialize(app, options = {}) ⇒ BlockSlackbot

Returns a new instance of BlockSlackbot.



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# File 'lib/rack/block_slackbot.rb', line 17

def initialize(app, options = {})
  @app = app
  @response = options.fetch(:response, DEFAULT_RESPONSE)
end

Instance Method Details

#block?(env) ⇒ Boolean

Returns:



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# File 'lib/rack/block_slackbot.rb', line 30

def block?(env)
  env[HTTP_USER_AGENT] && env[HTTP_USER_AGENT] =~ SLACKBOT_UA_PATTERN
end

#call(env) ⇒ Object 



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# File 'lib/rack/block_slackbot.rb', line 22

def call(env)
  if block?(env)
    @response
  else
    @app.call(env)
  end
end