I have quiet decent knowledge how to use Ejabberd. Have used a lot with Smack Library for android so am quiet comfortable as a user. However I face use case that I have not faced before.
There exists as system with its users and login interfaces both using forms and another using API. Now I need to integrate it with ejabberd. The most common and documented way is to use ejabberd OAuth2 but now am supposed to do the opposite.
Reading the docs the best I found is this link talking about external script. However there are no enough information to help build something. Linked examples are old and links are dead.
Can anyone help me get into right direction with external script login? I would prefer PHP based solution but any other language will help.