Pre-requisites

• brew install libsodium

• Secure session management

• Chat

Session management

Workflow:

1. routes file defines "root" path at "/" as: GET / controllers.HomeController.index.

Upon hitting this "root" path, for instance, via browser, we invoke HomeController's index action which serves the index page that is generated from index.scala.html which contains the login form. Since a session does not exist yet, the userAction simply forwards the incoming GET request.

2. After entering a username, clicking submit button invokes the "login" route defined in the routes file: POST /login controllers.LoginController.login. Again, the userAction simply forwards the incoming POST request.

In the LoginController's login action, a new session is generated using the SessionGenerator. Below steps happen inside SessionGenerator's createSession:

• Generate a new session-specific secret of size 32 bytes for Kalium's secret box
• Generate a new random session id and replicate this session id and secret across the distributed cluster
• Create a new CookieBaker using the secret and encode the userInfo as a cookie. CookieBaker can now serialize and deserialize the cookie data.
• Return the session id and cookie.

index page serves index