ruby script/plugin install https://wush.net/svn/public/sliding_session_timeout

the macro for use in controllers

sliding_session_timeout seconds [, upon_expiry_function]

'seconds' is the time in seconds for a session to live
'upon_expiry_function' is an optional method to call when a session dies

- ActionController::Base.reset_session will be called upon session expiry.
- If an expiry_function was provided, the call to reset_session will happen after the call to the expiry_function to preserve session data for the expiry_function.

Examples:
# in app/controllers/application.rb

# expire in thirty minutes

  sliding_session_timeout 60 * 30

# or use Rails' number helpers

  sliding_session_timeout 30.minutes

# expire in two hours and call the 'logout' method upon expiry

  sliding_session_timeout 2.hours, :logout
  
  def logout
    # do stuff here for logout
  end

There is currently no advanced documentation for this plugin.