Source code for my_application.subscription_auth

# Copyright 2020 Nedeljko Radulovic, Dihia Boulegane, Albert Bifet
#
# Licensed 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.
import jwt

"""
Subscription module.
Provides methods for getting authentication tokens for each competition subscription.
"""


# TODO : make secret key global with authentication
#SECRET_KEY = b"\xf6f \x8a\x08Q\xbd\xca\x0c\x87t|\x0b<\xc0\xb4\x13\xb4\xc6\x13\x8d\x8f\xe6&"


def get_subscription_token(competition_id, user_id):
    """
    Retrieve token.

    :param competition_id:
    :param user_id:
    :return:
    """
    try:
        return encode_subscription_token(competition_id, user_id)
    except Exception as e:
        return 500, e


def encode_subscription_token(competition_id, user_id):
    """
    Encode token.

    :param competition_id:
    :param user_id:
    :return:
    """
    try:
        payload = {
            'user_id': user_id,
            'competition_id': competition_id
        }

        print(jwt.encode(payload, SECRET_KEY, algorithm='HS256'))
        return 200, jwt.encode(payload, SECRET_KEY, algorithm='HS256')
    except Exception as e:
        return 401, e


def decode_subscription_token(token):
    """
    Decode token.

    :param token:
    :return:
    """
    try:
        payload = jwt.decode(token, SECRET_KEY)
        return 200, payload
    except Exception as e:
        print(str(e))