app/soc/logic/rights.py
author Sverre Rabbelier <srabbelier@gmail.com>
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#!/usr/bin/python2.5
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#
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# Copyright 2009 the Melange authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#   http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Module with rights related methods.
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"""
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__authors__ = [
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  '"Sverre Rabbelier" <sverre@rabbelier.nl>',
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  ]
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from soc.logic import dicts
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class Checker(object):
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  """Checker class that maps from prefix and status to membership.
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  """
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  SITE_MEMBERSHIP = {
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      'admin': [],
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      'restricted': ['host'],
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      'member': ['user'],
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      }
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  CLUB_MEMBERSHIP = {
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      'admin': ['host', 'club_admin'],
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      'restricted': ['host', 'club_admin'],
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      'member': ['host', 'club_admin', 'club_member'],
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      }
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  SPONSOR_MEMBERSHIP = {
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      'admin': ['host'],
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      'restricted': ['host'],
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      'member': ['host'],
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      }
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  PROGRAM_MEMBERSHIP = {
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      'admin': ['host'],
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      'restricted': ['host', 'org_admin'],
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      'member': ['host', 'org_admin', 'org_mentor', 'org_student'],
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      }
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  ORGANIZATION_MEMBERSHIP = {
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      'admin': ['host', 'org_admin'],
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      'restricted': ['host', 'org_admin', 'org_mentor'],
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      'member': ['host', 'org_admin', 'org_mentor', 'org_student'],
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      }
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  USER_MEMBERSHIP = {
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      'admin': ['user_self'],
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      'restricted': ['user_self'], # ,'friends'
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      'member': ['user'],
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      }
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  RIGHTS = {
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      'site': SITE_MEMBERSHIP,
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      'club': CLUB_MEMBERSHIP,
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      'sponsor': SPONSOR_MEMBERSHIP,
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      'program': PROGRAM_MEMBERSHIP,
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      'org': ORGANIZATION_MEMBERSHIP,
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      'user': USER_MEMBERSHIP,
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      }
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  def __init__(self, prefix):
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    """Constructs a Checker for the specified prefix.
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    """
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    self.prefix = prefix
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    self.rights = self.RIGHTS[prefix]
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  def getMembership(self, status):
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    """Retrieves the membership list for the specified status.
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    """
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    if status == 'user':
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      return ['user']
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    if status == 'public':
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      return ['anyone']
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    return self.rights[status]
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  def getMemberships(self):
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    """Returns all memberships for the configured prefix.
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    """
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    return dicts.merge(self.rights, {'user': ['user'], 'public': ['anyone']})