indico/util/signing.py

   1 # This file is part of Indico.
   2 # Copyright (C) 2002 - 2015 European Organization for Nuclear Research (CERN).
   3 #
   4 # Indico is free software; you can redistribute it and/or
   5 # modify it under the terms of the GNU General Public License as
   6 # published by the Free Software Foundation; either version 3 of the
   7 # License, or (at your option) any later version.
   8 #
   9 # Indico is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with Indico; if not, see <http://www.gnu.org/licenses/>.
  16
  17 from flask import current_app
  18 from itsdangerous import URLSafeTimedSerializer
  19 from werkzeug.local import LocalProxy
  20
  21 #: An *itsdangerous*-based serializer that can be used to pass small
  22 #: amounts of data through untrusted channels such as a verification
  23 #: email.
  24 #: :type: :class:`~itsdangerous.URLSafeTimedSerializer`
  25 secure_serializer = LocalProxy(lambda: URLSafeTimedSerializer(current_app.config['SECRET_KEY'], b'indico'))