Class: IntercomRails::AutoInclude::Filter

Inherits:
Object
  • Object
show all
Defined in:
lib/intercom-rails/auto_include_filter.rb

Constant Summary collapse

CLOSING_BODY_TAG = 
%r{</body>}
BLACKLISTED_CONTROLLER_NAMES = 
["Devise::PasswordsController"]

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(kontroller) ⇒ Filter

Returns a new instance of Filter.



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# File 'lib/intercom-rails/auto_include_filter.rb', line 30

def initialize(kontroller)
  @controller = kontroller
end

Instance Attribute Details

#controller ⇒ Object (readonly)

Returns the value of attribute controller.



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# File 'lib/intercom-rails/auto_include_filter.rb', line 28

def controller
  @controller
end

Class Method Details

.filter(controller) ⇒ Object 



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# File 'lib/intercom-rails/auto_include_filter.rb', line 15

def self.filter(controller)
  return if BLACKLISTED_CONTROLLER_NAMES.include?(controller.class.name)
  auto_include_filter = new(controller)
  return unless auto_include_filter.include_javascript?

  auto_include_filter.include_javascript!

  # User defined method to whitelist the script sha-256 when using CSP
  if defined?(CoreExtensions::IntercomRails::AutoInclude.csp_sha256_hook) == 'method'
    CoreExtensions::IntercomRails::AutoInclude.csp_sha256_hook(controller, auto_include_filter.csp_sha256)
  end
end

Instance Method Details

#csp_sha256 ⇒ Object 



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# File 'lib/intercom-rails/auto_include_filter.rb', line 46

def csp_sha256
  intercom_script_tag.csp_sha256
end

#include_javascript! ⇒ Object 



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# File 'lib/intercom-rails/auto_include_filter.rb', line 34

def include_javascript!
  response.body = response.body.gsub(CLOSING_BODY_TAG, intercom_script_tag.to_s + '\\0')
end

#include_javascript? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/intercom-rails/auto_include_filter.rb', line 38

def include_javascript?
  enabled_for_environment? &&
  !intercom_script_tag_called_manually? &&
  html_content_type? &&
  response_has_closing_body_tag? &&
  intercom_script_tag.valid?
end