PutObjectAclRequest Class | AWS SDK for .NET Version 4

Container for the parameters to the PutObjectAcl operation.

This operation is not supported by directory buckets.

Uses the acl subresource to set the access control list (ACL) permissions for a new or existing object in an S3 bucket. You must have the WRITE_ACP permission to set the ACL of an object. For more information, see What permissions can I grant? in the Amazon S3 User Guide.

This functionality is not supported for Amazon S3 on Outposts.

Depending on your application needs, you can choose to set the ACL on an object using either the request body or the headers. For example, if you have an existing application that updates a bucket ACL using the request body, you can continue to use that approach. For more information, see Access Control List (ACL) Overview in the Amazon S3 User Guide.

If your bucket uses the bucket owner enforced setting for S3 Object Ownership, ACLs are disabled and no longer affect permissions. You must use policies to grant access to your bucket and the objects in it. Requests to set ACLs or update ACLs fail and return the AccessControlListNotSupported error code. Requests to read ACLs are still supported. For more information, see Controlling object ownership in the Amazon S3 User Guide.

Permissions

You can set access permissions using one of the following methods:

Specify a canned ACL with the x-amz-acl request header. Amazon S3 supports a set of predefined ACLs, known as canned ACLs. Each canned ACL has a predefined set of grantees and permissions. Specify the canned ACL name as the value of x-amz-acl. If you use this header, you cannot use other access control-specific headers in your request. For more information, see Canned ACL.
Specify access permissions explicitly with the x-amz-grant-read, x-amz-grant-read-acp, x-amz-grant-write-acp, and x-amz-grant-full-control headers. When using these headers, you specify explicit access permissions and grantees (Amazon Web Services accounts or Amazon S3 groups) who will receive the permission. If you use these ACL-specific headers, you cannot use x-amz-acl header to set a canned ACL. These parameters map to the set of permissions that Amazon S3 supports in an ACL. For more information, see Access Control List (ACL) Overview.
You specify each grantee as a type=value pair, where the type is one of the following:
- id – if the value specified is the canonical user ID of an Amazon Web Services account
- uri – if you are granting permissions to a predefined group
- emailAddress – if the value specified is the email address of an Amazon Web Services account
  Using email addresses to specify a grantee is only supported in the following Amazon Web Services Regions:
  - US East (N. Virginia)
  - US West (N. California)
  - US West (Oregon)
  - Asia Pacific (Singapore)
  - Asia Pacific (Sydney)
  - Asia Pacific (Tokyo)
  - Europe (Ireland)
  - South America (São Paulo)
  For a list of all the Amazon S3 supported Regions and endpoints, see Regions and Endpoints in the Amazon Web Services General Reference.
For example, the following x-amz-grant-read header grants list objects permission to the two Amazon Web Services accounts identified by their email addresses.
x-amz-grant-read: emailAddress="xyz@amazon.com", emailAddress="abc@amazon.com"

You can use either a canned ACL or specify access permissions explicitly. You cannot do both.

Grantee Values

You can specify the person (grantee) to whom you're assigning access rights (using request elements) in the following ways:

By the person's ID:
<>ID<><>GranteesEmail<>
DisplayName is optional and ignored in the request.
By URI:
<>http://acs.amazonaws.com/groups/global/AuthenticatedUsers<>
By Email address:
<>Grantees@email.com<>lt;/Grantee>
The grantee is resolved to the CanonicalUser and, in a response to a GET Object acl request, appears as the CanonicalUser.
Using email addresses to specify a grantee is only supported in the following Amazon Web Services Regions:
- US East (N. Virginia)
- US West (N. California)
- US West (Oregon)
- Asia Pacific (Singapore)
- Asia Pacific (Sydney)
- Asia Pacific (Tokyo)
- Europe (Ireland)
- South America (São Paulo)
For a list of all the Amazon S3 supported Regions and endpoints, see Regions and Endpoints in the Amazon Web Services General Reference.

Versioning

The ACL of an object is set at the object version level. By default, PUT sets the ACL of the current version of an object. To set the ACL of a different version, use the versionId subresource.

The following operations are related to PutObjectAcl:

Inheritance Hierarchy

System.Object
Amazon.Runtime.AmazonWebServiceRequest
Amazon.S3.Model.PutObjectAclRequest

Namespace: Amazon.S3.Model
Assembly: AWSSDK.S3.dll
Version: 3.x.y.z

Syntax

public class PutObjectAclRequest : AmazonWebServiceRequest
         IAmazonWebServiceRequest

The PutObjectAclRequest type exposes the following members

Constructors

	Name	Description
	PutObjectAclRequest()

Properties

Name	Type	Description
AccessControlPolicy	Amazon.S3.Model.S3AccessControlList	Gets and sets the property AccessControlPolicy. Contains the elements that set the ACL permissions for an object per grantee.
ACL	Amazon.S3.S3CannedACL	Gets and sets the property ACL. The canned ACL to apply to the object. For more information, see Canned ACL.
BucketName	System.String	Gets and sets the property BucketName. The bucket name that contains the object to which you want to attach the ACL. Access points - When you use this action with an access point, you must provide the alias of the access point in place of the bucket name or specify the access point ARN. When using the access point ARN, you must direct requests to the access point hostname. The access point hostname takes the form AccessPointName-AccountId.s3-accesspoint.Region.amazonaws.com. When using this action with an access point through the Amazon Web Services SDKs, you provide the access point ARN in place of the bucket name. For more information about access point ARNs, see Using access points in the Amazon S3 User Guide. S3 on Outposts - When you use this action with Amazon S3 on Outposts, you must direct requests to the S3 on Outposts hostname. The S3 on Outposts hostname takes the form `AccessPointName-AccountId.outpostID.s3-outposts.Region.amazonaws.com`. When you use this action with S3 on Outposts through the Amazon Web Services SDKs, you provide the Outposts access point ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see What is S3 on Outposts? in the Amazon S3 User Guide.
ChecksumAlgorithm	Amazon.S3.ChecksumAlgorithm	Gets and sets the property ChecksumAlgorithm. Indicates the algorithm used to create the checksum for the object when you use the SDK. This header will not provide any additional functionality if you don't use the SDK. When you send this header, there must be a corresponding `x-amz-checksum` or `x-amz-trailer` header sent. Otherwise, Amazon S3 fails the request with the HTTP status code `400 Bad Request`. For more information, see Checking object integrity in the Amazon S3 User Guide. If you provide an individual checksum, Amazon S3 ignores any provided `ChecksumAlgorithm` parameter.
ContentMD5	System.String	Gets and sets the property ContentMD5. The base64-encoded 128-bit MD5 digest of the data. This header must be used as a message integrity check to verify that the request body was not corrupted in transit. For more information, go to RFC 1864.> For requests made using the Amazon Web Services Command Line Interface (CLI) or Amazon Web Services SDKs, this field is calculated automatically.
ExpectedBucketOwner	System.String	Gets and sets the property ExpectedBucketOwner. The account ID of the expected bucket owner. If the account ID that you provide does not match the actual owner of the bucket, the request fails with the HTTP status code `403 Forbidden` (access denied).
GrantFullControl	System.String	Gets and sets the property GrantFullControl. Allows grantee the read, write, read ACP, and write ACP permissions on the bucket. This functionality is not supported for Amazon S3 on Outposts.
GrantRead	System.String	Gets and sets the property GrantRead. Allows grantee to list the objects in the bucket. This functionality is not supported for Amazon S3 on Outposts.
GrantReadACP	System.String	Gets and sets the property GrantReadACP. Allows grantee to read the bucket ACL. This functionality is not supported for Amazon S3 on Outposts.
GrantWrite	System.String	Gets and sets the property GrantWrite. Allows grantee to create new objects in the bucket. For the bucket and object owners of existing objects, also allows deletions and overwrites of those objects.
GrantWriteACP	System.String	Gets and sets the property GrantWriteACP. Allows grantee to write the ACL for the applicable bucket. This functionality is not supported for Amazon S3 on Outposts.
Key	System.String	Gets and sets the property Key. Key for which the PUT action was initiated.
RequestPayer	Amazon.S3.RequestPayer	Gets and sets the property RequestPayer.
VersionId	System.String	Gets and sets the property VersionId. Version ID used to reference a specific version of the object. This functionality is not supported for directory buckets.

Version Information

.NET:
Supported in: 8.0 and newer, Core 3.1

.NET Standard:
Supported in: 2.0

.NET Framework:
Supported in: 4.7.2 and newer