We have bundles for Facebook & Twitter authorization for a Symfony2 app. But what about other sites like Google Plus? There isn’t any bundle yet, and I would like to know if someone knows about the right direction to how to implement it.
I think Google Plus uses OAuth. Could it be then implemented with a OAuth bundle?
You can check the KnpOAuthBundle (under development) – only the github OAuth provider is implemented though.
You could implemented your own Google OAuth 2.0 Provider (check this) or ask out on IRC, maybe somebody already implemented it.