Check permission

        @param request the HTTP request
        @param resource the requested resource
        @raise Forbidden if the user doesn't have access to the resource

def check_perm(self, request, resource):
        """ Check permission

        @param request the HTTP request
        @param resource the requested resource
        @raise Forbidden if the user doesn't have access to the resource
        """

        perm_name = self.get_perm_name(resource, request.method)
        if not self._has_perm(request.user, perm_name):
            raise errors.Forbidden()