facebook - Rails 4.1.5 omniauth strong parameters

Question

After upgrading Rails 4.1.4 to 4.1.5 i get errors with my facebook omniauth session everything was working fine since then. When i create a User Session i get an ActiveModel::ForbiddenAttributesError

Route:

  match 'auth/:provider/callback', to: 'sessions#create', as: 'signin', via: :get

Session#create controller:

  def create
        user = User.from_omniauth(env["omniauth.auth"])
        session[:user_id] = user.id 
        session[:user_name] = user.name

      redirect_to root_path
  end

and a user model like this:

  def self.from_omniauth(auth)
    where(auth.slice(:provider, :uid)).first_or_create.tap do |user|
      user.provider ||= auth.provider 
      user.uid = auth.uid
      user.name = auth.info.name
      user.save
    end
  end

I can bypass the ActiveModel error by adding a permit! method in my User Model like that:

where(auth.slice(:provider, :uid).permit!).first_or_create.tap do |user|

But it override the first user from the database... The session[:user_id] seems to always be the first User from the database.

I don't know if it's a strong parameters problem, an Omniauth problem or both?

Answer 1

Replace you current finder:

def self.from_omniauth(auth)
  where(provider: auth.provider, uid: auth.uid).first_or_create do |user|
    user.provider = auth.provider 
    user.uid      = auth.uid
    user.name     = auth.info.name
    user.save
  end
end