Module: Softcover::Sanitizer

Extended by:
Sanitizer
Included in:
Sanitizer
Defined in:
lib/softcover/sanitizer.rb

Instance Method Summary collapse

Instance Method Details

#clean(html) ⇒ Object

Sanitization suitable for displaying untrusted generated html, while retaining useful tags and attributes.



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# File 'lib/softcover/sanitizer.rb', line 10

def clean(html)
  return unless html

  sanitize_options = {
    elements: %w{div span p a ul ol li h1 h2 h3
      pre em sup table tbody thead tr td img},
    remove_contents: %w{script},
    attributes: {
      'div' => %w{id class data-tralics-id data-number data-chapter},
      'a'   => %w{id class href},
      'span'=> %w{id class style},
      'ol'  => %w{id class},
      'ul'  => %w{id class},
      'li'  => %w{id class},
      'sup' => %w{id class},
      'h1'  => %w{id class},
      'h2'  => %w{id class},
      'h3'  => %w{id class},
      'img' => %w{id class src alt},
      'em'  => %w{id class}
    },
    protocols: {
      'a'   => {'href' => [:relative, 'http', 'https', 'mailto']},
      'img' => {'src'  => [:relative, 'http', 'https']}
    },
    output: :xhtml
  }

  Sanitize.clean(html.force_encoding("UTF-8"), sanitize_options)
end