In my old forum (phpBB3) I used user data for loging on portal. Users register thru forum interface and then when they want to use portal futures for which user must be logged in, then they use same username and password.
Portal is custom made (it is not phpbb portal) and I connected directly to phpbb database and used phpbb3 code for authenticating users.
Now I would need same thing with xenForo, but can someone suggest me what would be best way to access and use data from xenForo database, or more precisely users username and password authentication. Write custom code which will directly access database or use some API or something for this.
Please this is very important to me, because all new users which are registered after transition to xenForo can't login to portal.