| # -*- coding: utf-8 -*- | |
| # MinIO Python Library for Amazon S3 Compatible Cloud Storage, | |
| # (C) 2020 MinIO, Inc. | |
| # | |
| # 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. | |
| """Credential definitions to access S3 service.""" | |
| from datetime import datetime, timedelta, timezone | |
| class Credentials: | |
| """ | |
| Represents credentials access key, secret key and session token. | |
| """ | |
| def __init__( | |
| self, access_key, secret_key, session_token=None, expiration=None, | |
| ): | |
| if not access_key: | |
| raise ValueError("Access key must not be empty") | |
| if not secret_key: | |
| raise ValueError("Secret key must not be empty") | |
| self._access_key = access_key | |
| self._secret_key = secret_key | |
| self._session_token = session_token | |
| if expiration and expiration.tzinfo: | |
| expiration = ( | |
| expiration.astimezone(timezone.utc).replace(tzinfo=None) | |
| ) | |
| self._expiration = expiration | |
| def access_key(self): | |
| """Get access key.""" | |
| return self._access_key | |
| def secret_key(self): | |
| """Get secret key.""" | |
| return self._secret_key | |
| def session_token(self): | |
| """Get session token.""" | |
| return self._session_token | |
| def is_expired(self): | |
| """Check whether this credentials expired or not.""" | |
| return ( | |
| self._expiration < (datetime.utcnow() + timedelta(seconds=10)) | |
| if self._expiration else False | |
| ) | |