Customize xabber android app (xabber is open source android xmpp client)

xabber is open source android xmpp client, out of the box it, we can login to any xmpp server and use this as chat application. But when try to register user, it will register to "[login to view URL]" server only , we can not register to our own xmpp server. And also it has social login with Google, Facebook, Twitter and Email login, which all linked, register to [login to view URL], not to our xmpp server. For direct user registration and social login registration, they are using custom api. I have my xmpp server based on ejabbered on AWS. Below is the main requirement: 1) I need to get his changed so that users can use normal registration and using social login with Google, Facebook registration to register to my xmpp server, and user should be able to login with Facebook, google or registered id This is link for source code "[login to view URL]" Please open below link and go to question "Registering XMPP Account" to see this limitation of this app "[login to view URL]"