A bucket is a container for objects stored in Object Storage Service (OSS). All objects in OSS are stored in buckets. This topic describes how to configure and query the access control list (ACL) of a bucket.
Usage notes
In this topic, the public endpoint of the China (Hangzhou) region is used. If you want to access OSS from other Alibaba Cloud services in the same region as OSS, use an internal endpoint. For more information about OSS regions and endpoints, see Regions and endpoints.
In this topic, an OSSClient instance is created by using an OSS endpoint. If you want to create an OSSClient instance by using custom domain names or Security Token Service (STS), see Create an OSSClient instance.
To configure the ACL of a bucket, you must have the
oss:PutBucketAcl
permission. To query the ACL of a bucket, you must have theoss:GetBucketAcl
permission. For more information, see Attach a custom policy to a RAM user.
Configure the ACL of a bucket
The following table describes the bucket ACLs.
ACL | Description | Method |
Private | Only the bucket owner and authorized users have read and write permissions on objects in the bucket. Other users cannot access objects in the bucket. | OssClient::OSS_ACL_TYPE_PRIVATE |
Public-read | Only the bucket owner and authorized users have read and write permissions on objects in the bucket. Other users have only read permissions on objects in the bucket. Exercise caution when you set the bucket ACL to this value. | OssClient::OSS_ACL_TYPE_PUBLIC_READ |
Public-read-write | All users have read and write permissions on objects in the bucket. Exercise caution when you set the bucket ACL to this value. | OssClient::OSS_ACL_TYPE_PUBLIC_READ_WRITE |
The following sample code provides an example on how to configure the ACL of a bucket:
<?php
if (is_file(__DIR__ . '/../autoload.php')) {
require_once __DIR__ . '/../autoload.php';
}
if (is_file(__DIR__ . '/../vendor/autoload.php')) {
require_once __DIR__ . '/../vendor/autoload.php';
}
use OSS\Credentials\EnvironmentVariableCredentialsProvider;
use OSS\OssClient;
use OSS\Core\OssException;
// Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured.
$provider = new EnvironmentVariableCredentialsProvider();
// In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint.
$endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
// Specify the name of the bucket.
$bucket= "yourBucketName";
// Set the ACL of the bucket to private.
$acl = OssClient::OSS_ACL_TYPE_PRIVATE;
try {
$config = array(
"provider" => $provider,
"endpoint" => $endpoint,
);
$ossClient = new OssClient($config);
$ossClient->putBucketAcl($bucket, $acl);
} catch (OssException $e) {
printf(__FUNCTION__ . ": FAILED\n");
printf($e->getMessage() . "\n");
return;
}
print(__FUNCTION__ . ": OK" . "\n");
Query the ACL of a bucket
The following sample code provides an example on how to query the ACL of a bucket:
<?php
if (is_file(__DIR__ . '/../autoload.php')) {
require_once __DIR__ . '/../autoload.php';
}
if (is_file(__DIR__ . '/../vendor/autoload.php')) {
require_once __DIR__ . '/../vendor/autoload.php';
}
use OSS\Credentials\EnvironmentVariableCredentialsProvider;
use OSS\OssClient;
use OSS\Core\OssException;
// Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured.
$provider = new EnvironmentVariableCredentialsProvider();
// In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint.
$endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
// Specify the name of the bucket.
$bucket= "yourBucketName";
try {
$config = array(
"provider" => $provider,
"endpoint" => $endpoint,
);
$ossClient = new OssClient($config);
// Query the ACL of the bucket.
$res = $ossClient->getBucketAcl($bucket);
} catch (OssException $e) {
printf(__FUNCTION__ . ": FAILED\n");
printf($e->getMessage() . "\n");
return;
}
print(__FUNCTION__ . ": OK" . "\n");
print('acl: ' . $res);
References
For the complete sample code that is used to manage the ACL of a bucket, visit GitHub.
For more information about the API operation that you can call to configure the ACL of a bucket, see PutBucketAcl.
For more information about the API operation that you can call to query the ACL of a bucket, see GetBucketAcl.