Let me outline the problem. I have embedded pretty URLs into my application. E.g. user can access site using:
http://example.com/action/login
or
http://example.com/viewPost/1234567
or
http://example.com/bestPosts
I would like to add silent-login feature. E.g. when I send newsletter to the users, URLs look like following:
http://example.com/viewPost/1234567?loginToken=qwerty
When user follows the link, they get logged in and redirected to
http://example.com/viewPost/1234567
The question: how technically implement the idea?