karlfreeman/multi_mime

require 'multi_mime/adapter'

module MultiMime
  module Adapters
    # Use the MIME::Types library
    class MimeTypes < Adapter
      def type_for(mime_type, opts = {})
        ::MIME::Types[mime_type].first || MultiMime::NullType.new
      end

      def type_for_extension(extension, opts = {})
        ::MIME::Types.type_for(extension).first || MultiMime::NullType.new
      end

      def type_for_path(path, opts = {})
        type_for_extension(File.extname(path))
      end

      def type_for_file(file, opts = {})
        type_for_extension(File.extname(file))
      end
    end
  end
end