I have a website with my custom register system (really simple - username, password and e-mail). I want to make Login with facebook as my new and only register/login system. I want to put a login button which: - if user is logged to facebook just asks for permission to use e-mail and other data + asks for custom username - if user is not logged, then just facebook login
那么,如果用户在Facebook上gged,就不必在我的网页上登录。
您能否给我一个 h子,或建议与我做些什么?