Implement facebook and google login in php Yii franework website (integrate third party social login solution)

We have just launched our web application entirely writen in php using the php Yii Framework. We want: - to accept users signing-in with their facebook and google accounts. - to gather and save necessary data about this users to be used in our web app (verified e-mail, prefered username, etc.). - gather extra data about the customer (example: this site would also like to obtain your permission to do the following: bla bla bla) - implementing this feature should be done in a way that our existing login system keeps working. - as we already have a login system installed (yii famework): minor integration will have to be done. We want to hire someone to add this features to our site. We are seriously thinking on using an "out of the box" social login solution like janrain. The freelancer will have to: -select the best third party "out of the box" social login solution and explain why using it the better solution (we are thinking janrain maybe the freelancer has a better choice) -integrate the social login solution in our php Yii framework application (i.e. integrate the User model from Yii framework, etc) -test every piece of code and make sure it works in all major browsers (ie6+, firefox 3+, chrome and safari) - install the feature in our test servers without any bug. -user social data must be accessible trough janrain and the freelancer must explain how we can check it.