text: # -*- coding: utf-8 -*-
  #
  # Copyright (C) 2021 CERN.
  #
  # Invenio App RDM is free software; you can redistribute it and/or modify it
  # under the terms of the MIT License; see LICENSE file for more details.
  
  """Permission factory to block access to admin.
  
  The Invenio-Admin interface is deprecated for Invenio and should not be
  used. The reason being that Invenio-Admin is too much of a database inspection
  tool, rather than an actual administration interface.
  """
  
  from invenio_access.permissions import Permission
  
  
  class Deny(Permission):
      """Permission that always deny access."""
  
      def __init__(self):
          """Deny."""
          super().__init__()
  
      def allows(self, identity):
          """Deny."""
          return False
  
  
  def permission_factory(admin_view):
      """Deny access to admin interface.
  
      This permission factory is being installed via the
      ``ADMIN_PERMISSION_FACTORY`` configuration variable.
      """
      return Deny()
  