Add Login / Logout mechanism

[GPortas]

Overview of the Feature Request

To be able to use the SPA as an authenticated user, it will be necessary to first log in via JSF login page, which will setup the JSESSIONID cookie, necessary for authentication (just for the MVP, see: strategy doc).

The goal is to add a Log In button which redirects to the JSF Log In page and a Log Out mechanism that removes the JSESSIONID cookie.

What kind of user is the feature intended for?

Test users.

What inspired the request?

• @pdurbin
• Better UX for the SPA, than having to manually navigate to JSF login

What existing behavior do you want changed?

No

Any brand new behavior do you want to add to Dataverse?

Add a Login / Logout mechanism to the SPA.

Any open or closed issues related to this feature request?

• Add a Log Out endpoint available when the session API auth feature flag is enabled dataverse#9531
• Add use case to get the current authenticated user given an auth cookie dataverse-client-javascript#56

[GPortas]

Resized: We have to establish a mechanism in the SPA that checks if the JSESSIONID cookie belongs to a logged in user or guest. It is not enough that the cookie is established to consider that there is a logged in user.

[GPortas]

Resized back to 10, since new issues for the dependent work have been created in the related repositories:

• Add use case to get the current authenticated user given an auth cookie dataverse-client-javascript#56
• Add a Log Out endpoint available when the session API auth feature flag is enabled dataverse#9531