# File lib/plugins/notify-send3.rb, line 9
def get_icon_path(s)
  FileUtils.mkdir_p(config.plugins.notify_send.icon_cache_dir) unless File.exist?(config.plugins.notify_send.icon_cache_dir)
  cache_file = "%s/%s%s" % [  config.plugins.notify_send.icon_cache_dir,
                              s.user.screen_name,
                              File.extname(s.user.profile_image_url)  ]
  if !File.exist?(cache_file) || (File.atime(cache_file) + 24*60*60) < Time.now
    File.open(cache_file, "wb") do |f|
      begin
        http_class = Net::HTTP
        unless config.proxy.host.nil? or config.proxy.host.empty?
          http_class = Net::HTTP::Proxy(config.proxy.host,
                                        config.proxy.port,
                                        config.proxy.user_name,
                                        config.proxy.password)
        end
        uri = URI.parse(URI.escape(s.user.profile_image_url))
        image = http_class.get(uri.host, uri.path, uri.port)
        rimage = Magick::Image.from_blob(image).first
        rimage = rimage.resize_to_fill(48, 48)
        f << rimage.to_blob
      rescue Net::ProtocolError
        return nil
      end
    end
  end
  cache_file
end