How to access private page (views page) with authentification in the URL? All the pages of my site are private (by role). I have nodes and views pages.
I want to access to a views page with an external link. But, If the visitor isn't logged, this visitor can't access to the page.

Is there a solution to specify a token or the login / pass in the URL to automaticaly access to the page?
Try reading about these projects: 


Auto Login URL
Auto Login URL Tokens
Token authentication
Login one time
One-time login
urllogin


They're not all usable but you can get inspired by their different features and how they implement them so you can solve it for your own problem.