sample.json

{
   "name": "~",
   "type": "dir",
   "contents": [
      {
         "name": "file1",
         "type": "text",
         "contents": "Hello World!",
         "description": "FOOO"
      },
      {
         "name": "pic.jpg",
         "type": "img",
         "contents": "/images/penguin.png",
         "caption": "What a beautiful penguin."
      },
      {
         "name": "dir1",
         "type": "dir",
         "contents": [
            {
               "name": "file2",
               "type": "text",
               "contents": "foo"
            },
            {
               "name": "foo",
               "type": "dir",
               "contents": [
                  {
                     "name": "file3",
                     "type": "exec",
                     "contents": "http://google.com",
                     "description": "blahblah"
                  }
               ]
            }
         ]
      }
   ]
}