Social login integration and development

Hi,
Merry Christmas and Happy new year~
Right now we're working on social login integration for Easy Social, as we cannot access Facebook and Twitter in China for some reason... We have to integrate with domestic social medias.

Firstly, I try to integrate with Linkedin which we can also access to,
I found in "\administrator\components\com_easysocial\includes\oauth\clients", there's also LinkedinOauth class, and I set an instance of Linedin in "\components\com_easysocial\views\dashboard\view.html.php", then rendered a login button in "components\com_easysocial\themes\wireframe\dashboard\default.guests.login.php".
Then Linkedin login button is displayed in login page successfully, but nothing happened when clicked, the problem might be js script missing, as I can find "\media\com_easysocial\scripts\oauth\facebook.js", but there's no "linkedin.js" and "twitter.js".

To complete the Linkedin login, I think I have to create and finish "linkedin.js", am I right? Any other work to do?

I also looked into JFBConnect, we can use the Linkedin part, but we still have to integrate with domestic social medias with JFBConnect.
I want to estimate the feasibility and effort of integrating with easysocial directly, or integrating with JFBConnect. Which solution would be better? Can you give me some suggestion?

Thanks.