www.gusucode.com > CKFinder 文件管理器PHP版 v3.0源码程序 > code/core/connector/php/vendor/aws/aws-sdk-php/src/Aws/Common/Credentials/RefreshableInstanceProfileCredentials.php
<?php /** * Copyright 2010-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"). * You may not use this file except in compliance with the License. * A copy of the License is located at * * http://aws.amazon.com/apache2.0 * * or in the "license" file accompanying this file. This file 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. */ namespace Aws\Common\Credentials; use Aws\Common\InstanceMetadata\InstanceMetadataClient; use Aws\Common\Exception\InstanceProfileCredentialsException; /** * Credentials decorator used to implement retrieving credentials from the * EC2 metadata server */ class RefreshableInstanceProfileCredentials extends AbstractRefreshableCredentials { /** * @var InstanceMetadataClient */ protected $client; /** * Constructs a new instance profile credentials decorator * * @param CredentialsInterface $credentials Credentials to adapt * @param InstanceMetadataClient $client Client used to get new credentials */ public function __construct(CredentialsInterface $credentials, InstanceMetadataClient $client = null) { $this->credentials = $credentials; $this->client = $client ?: InstanceMetadataClient::factory(); } /** * Attempt to get new credentials from the instance profile * * @throws InstanceProfileCredentialsException On error */ protected function refresh() { $credentials = $this->client->getInstanceProfileCredentials(); // Expire the token 1 minute before it actually expires to pre-fetch before expiring $this->credentials->setAccessKeyId($credentials->getAccessKeyId()) ->setSecretKey($credentials->getSecretKey()) ->setSecurityToken($credentials->getSecurityToken()) ->setExpiration($credentials->getExpiration()); } }