Vortex Hello World script

hello_world_in_vortex.rb

require 'rubygems'
require 'net/dav'
require 'json'
require 'highline/import'

webdav_url = 'https://vortex-systest-dav.uio.no'
dav = Net::DAV.new(webdav_url)
username = ask("Username: ")
password = ask("Password: ") {|q| q.echo = "*"}
dav.credentials(username, password)

article = {
  "resourcetype" => "structured-article",
  "properties" =>    {
    "title" => "Hello world!",
    "introduction" => "This is the introduction.",
    "content" => "<p>And this is the main content.</p>"
  }
}

dest_url = '/test/hello-world.html'
dav.put_string(dest_url, article.to_json)
dav.proppatch(dest_url, '<v:publish-date xmlns:v="vrtx">' + Time.now.httpdate.to_s + '</v:publish-date>')
puts "Published to " + webdav_url.sub('-dav','') + dest_url