Sanitizer Helper

sanitizer_helper.rb

module SanitizerHelper
  def sanitize text
    text = text.to_s.
            gsub("?xml","").
            gsub(/DOCTYPE|json|CDATA/,"").
            gsub("<p><br></p>", "<br/>").
            gsub(/\<(script|iframe|xml|applet|body|code|em|form|html|head|header|footer|input|textarea|map|nav|pre|template|tab|var|video|canvas|audio|ruby|wbrxlink|xs|binding|soap|rdf|channel|rss)/,"").
            gsub(/ +/," ").
            gsub(/(\<br\>)+/,"<br>").
            gsub(/\n+/,"\n").
            strip

    return if text.blank?

    text
  end
end