old_contents: from functools import wraps
  
  from django.http import HttpResponse
  from django.core.urlresolvers import reverse
  from django.core.handlers.wsgi import WSGIRequest
  
  from fandjango.views import authorize_application
  from fandjango.settings import FACEBOOK_APPLICATION_CANVAS_URL
  
  def facebook_authorization_required(redirect_uri=False):
      """
      Redirect Facebook canvas views to authorization if required.
  
      Arguments:
      redirect_uri -- A string describing an URI to redirect to after authorization is complete.
                      Defaults to current URI in Facebook canvas (ex. http://apps.facebook.com/myapp/path/).
      """
      def decorator(function):
          @wraps(function)
          def wrapper(request, *args, **kwargs):
  
              if not request.facebook or not request.facebook.user:
                      return authorize_application(
                          request = request,
                          redirect_uri = redirect_uri or FACEBOOK_APPLICATION_CANVAS_URL + request.get_full_path()
                      )
  
              return function(*args, **kwargs)
          return wrapper
      return decorator
  
new_contents: from functools import wraps
  
  from django.http import HttpResponse
  from django.core.urlresolvers import reverse
  from django.core.handlers.wsgi import WSGIRequest
  
  from fandjango.views import authorize_application
  from fandjango.settings import FACEBOOK_APPLICATION_CANVAS_URL
  
  def facebook_authorization_required(redirect_uri=False):
      """
      Redirect Facebook canvas views to authorization if required.
  
      Arguments:
      redirect_uri -- A string describing an URI to redirect to after authorization is complete.
                      Defaults to current URI in Facebook canvas (ex. http://apps.facebook.com/myapp/path/).
      """
      def decorator(function):
          @wraps(function)
          def wrapper(request, *args, **kwargs):
  
              if not request.facebook or not request.facebook.user:
                      return authorize_application(
                          request = request,
                          redirect_uri = redirect_uri or FACEBOOK_APPLICATION_CANVAS_URL + request.get_full_path()
                      )
  
              return function(request, *args, **kwargs)
          return wrapper
      return decorator
  
subject: Fix an embarrasing bug