Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://docs.aws.amazon.com/AmazonS3/latest/dev/AuthUsingTempFederationToken.html below:

Making requests using federated user temporary credentials

The following PHP example lists keys in the specified bucket. In the example, you obtain temporary security credentials for an hour session for your federated user (User1). Then you use the temporary security credentials to send authenticated requests to Amazon S3.

For added security when requesting temporary credentials for others, you use the security credentials of an IAM user who has permissions to request temporary security credentials. To ensure that the IAM user grants only the minimum application-specific permissions to the federated user, you can also limit the access permissions of this IAM user. This example lists only objects in a specific bucket. Create an IAM user with the following policy attached:

{
  "Statement":[{
      "Action":["s3:ListBucket",
        "sts:GetFederationToken*"
      ],
      "Effect":"Allow",
      "Resource":"*"
    }
  ]
}

The policy allows the IAM user to request temporary security credentials and access permission only to list your AWS resources. For more information about how to create an IAM user, see Creating Your First IAM user and Administrators Group in the IAM User Guide.

You can now use the IAM user security credentials to test the following example. The example sends an authenticated request to Amazon S3 using temporary security credentials. When requesting temporary security credentials for the federated user (User1), the example specifies the following policy, which restricts access to list objects in a specific bucket. Update the policy with your bucket name.

{
  "Statement":[
    {
      "Sid":"1",
      "Action":["s3:ListBucket"],
      "Effect":"Allow", 
      "Resource":"arn:aws:s3:::YourBucketName"
    }
  ]
}

In the following example, when specifying the policy resource, replace YourBucketName with the name of your bucket.:

 require 'vendor/autoload.php';

use Aws\S3\Exception\S3Exception;
use Aws\S3\S3Client;
use Aws\Sts\StsClient;

$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;
}

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4