Trying to create a share link that will show a secure url of the same page to be share with others in ruby on rails

i would like to create a link on button just like google docs or dropbox share url link button to show the secure url of the same page in a pop up menu using ruby-on-rails. So that we can share that url to anybody for the access of that page.The person who will use the link wouldn't have to authenticate his/herself.