AWS Code Sample
Catalog

s3-request-fed-user-with-temp-credentials.php

s3-request-fed-user-with-temp-credentials.php demonstrates how to access an Amazon S3 bucket using temporary federated credentials.

<?php /** * Copyright 2010-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * This file is 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/ * * 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. * * ABOUT THIS PHP SAMPLE: This sample is part of the SDK for PHP Developer Guide topic at * https://docs.aws.amazon.com/sdk-for-php/v3/developer-guide/s3-examples-creating-buckets.html * */ require 'vendor/autoload.php'; use Aws\Sts\StsClient; use Aws\S3\S3Client; use Aws\S3\Exception\S3Exception; $bucket = '*** Your Bucket Name ***'; // In real applications, the following code is part of your trusted code. It has // the security credentials that you use to obtain temporary security credentials. $sts = new StsClient( [ 'version' => 'latest', 'region' => 'us-east-1'] ); // Fetch the federated credentials. $sessionToken = $sts->getFederationToken([ 'Name' => 'User1', 'DurationSeconds' => '3600', 'Policy' => json_encode([ 'Statement' => [ 'Sid' => 'randomstatementid' . time(), 'Action' => ['s3:ListBucket'], 'Effect' => 'Allow', 'Resource' => 'arn:aws:s3:::' . $bucket ] ]) ]); // The following will be part of your less trusted code. You provide temporary // security credentials so the code can send authenticated requests to Amazon S3. $s3 = new S3Client([ 'region' => 'us-east-1', 'version' => 'latest', 'credentials' => [ 'key' => $sessionToken['Credentials']['AccessKeyId'], 'secret' => $sessionToken['Credentials']['SecretAccessKey'], 'token' => $sessionToken['Credentials']['SessionToken'] ] ]); try { $result = $s3->listObjects([ 'Bucket' => $bucket ]); } catch (S3Exception $e) { echo $e->getMessage() . PHP_EOL; }

Sample Details

Service: s3

Last tested: 2019-01-30

Author: fletpatr (AWS)

Type: full-example

On this page: