Module: RFacebook::Rails::ControllerExtensions

Core API variables
Special Facebook variables
Facebook helper methods
before_filters
Debug panel
Utility methods
Backtrace handling
URL Management
Extension management

Constants

FACEBOOK_SIGNATURE_TIME_SLACK = 30*60 signatures are allowed at most a 30 minute delta in the sig_time

Core API variables

Public Instance methods

facebook_api_key()

Facebook API key, as parsed from the YAML file

facebook_api_secret()

Facebook API secret, as parsed from the YAML file

facebook_callback_path()

Facebook callback path, as parsed from the YAML file (may be nil if this application is an external app)

facebook_canvas_path()

Facebook canvas path, as parsed from the YAML file (may be nil if this application is an external app)

Accessor for all params beginning with "fb_sig_". The signature is verified to prevent replay attacks and other calls that don‘t originate from Facebook. (the "fb_sig_" prefix is removed from the parameter name)

fbsession()

Gives direct access to a Facebook session (of type RFacebook::FacebookWebSession) for this user. An attempt will be made to activate this session (either using canvas params or an auth_token for external apps), but if the user has not been forced to log in to Facebook, the session will NOT be ready for usage. To double-check this, simply call ‘ready?’ to see if the session is okay to use.

Facebook helper methods

Public Instance methods

added_facebook_application?()

returns true if the user has added (installed) the current application

facebook_platform_signature_verified?()

returns true if the fb_sig_* parameters have been verified with a correct signature

finish_facebook_login()

this is a callback method for EXTERNAL web applications, you should define this method to do something (for example, redirect the user to your main page, etc.)

in_ajax?()

returns true if the current request is an FBJS ajax request

in_external_app?()

returns true if the user is viewing the page from an external website

in_facebook_canvas?()

returns true if the user is viewing the page in the canvas

in_facebook_frame?()

returns true if the user is viewing the page in an iframe

in_mock_ajax?()

returns true if the current request is a mock-ajax request

log_out_of_facebook()

clear the current session so that a new user can log in