form_authenticity_token

# File actionpack/lib/action_controller/request_forgery_protection.rb, line 107 def form_authenticity_token @form_authenticity_token ||= if !session.respond_to?(:session_id) raise InvalidAuthenticityToken, "Request Forgery Protection requires a valid session. Use #allow_forgery_protection to disable it, or use a valid session." elsif request_forgery_protection_options[:secret] authenticity_token_from_session_id elsif session.respond_to?(:dbman) && session.dbman.respond_to?(:generate_digest) authenticity_token_from_cookie_session else raise InvalidAuthenticityToken, "No :secret given to the #protect_from_forgery call. Set that or use a session store capable of generating its own keys (Cookie Session Store)." end end