Class: Enjoy::Goto::Middleware

Inherits:
Object
  • Object
show all
Defined in:
lib/enjoy/goto/middleware.rb

Constant Summary collapse

ATTRS = 
{
  disabled:       'data-enjoy-goto-disabled',
  add_nofollow:   'data-enjoy-goto-add-nofollow',
  add_noindex:    'data-enjoy-goto-add-noindex',
  add_noreferrer: 'data-enjoy-goto-add-noreferrer',
  add_noopener:   'data-enjoy-goto-add-noopener',
  del_attrs:      'data-enjoy-goto-del-attrs'
}
REL_ATTRS = 
ATTRS

Instance Method Summary collapse

Constructor Details

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

Returns a new instance of Middleware.



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# File 'lib/enjoy/goto/middleware.rb', line 20

def initialize(app, options = {})
  @app = app
  self
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/enjoy/goto/middleware.rb', line 25

def call(env)
  status, headers, body = @app.call(env)

  if headers['Content-Type'].to_s.include?('text/html')
    begin
      doc = Nokogiri::HTML.fragment(body.body)
      doc.css(Enjoy::Goto.config[:css_selector]).each do |a|
        if (!a[ATTRS[:disabled]].blank? and !["0", "false", "no"].include?(a[ATTRS[:disabled]]))
          del_attrs(a)
          next
        end

        _href = a['href']
        if _href =~ Enjoy::Goto.config[:href_regex]
          begin
            _host = Addressable::URI.parse(_href).host
            unless Enjoy::Goto.config[:excluded_hosts].include?(_host)
              a['href'] = Rails.application.routes.url_helpers.enjoy_goto_path(url: _href)
              a['target'] = '_blank' if a['target'].blank?
              set_rel_attribute(a)
              del_attrs(a)
            end
          rescue
          end
        end
      end
      return [status, headers, [doc.to_html]]
    rescue
    end
  end

  [status, headers, body]
end