app/lib/tag_sanitizer.rb
class TagSanitizer
DISALLOWED_STRINGS = %w[? < > = /].freeze
def sanitize_tag(tag)
tag = tag.dup
DISALLOWED_STRINGS.each do |s|
tag.gsub!(s, "")
end
tag.truncate(TagSanitizer.tag_max_length)
end
def sanitize_tag_list(tag_list)
tag_list.map { |tag| sanitize_tag(tag) }
end
def self.tag_max_length
160
end
end