server/plugins/aaa.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""
This is the AAA library for Pony Mail codename Foal
It handles rights management for lists.
"""

import plugins.session


def can_access_email(session: plugins.session.SessionObject, email) -> bool:
    """Determine if an email can be accessed by the current user"""
    # If public email, it can always be accessed
    if not email.get("private"):
        return True
    else:
        # If user can access the list, they can read the email
        if can_access_list(session, email.get("list_raw")):
            return True
        # If no access to list and email is private, deny access to email.
        else:
            return False


def can_access_list(session: plugins.session.SessionObject, listid) -> bool:
    """Determine if a list can be accessed by the current user"""
    # If logged in via a known oauth, we assume access for now...TO BE CHANGED
    if session.credentials and session.credentials.authoritative:
        return True
    else:
        return False