PUT Bucket acl
Description
This implementation of the PUT
operation uses the acl
subresource to set the permissions on an existing bucket using access control lists
(ACL). For more information, go to Using ACLs. To set the ACL of a bucket, you must have WRITE_ACP permission.
You can use one of the following two ways to set a bucket's permissions:
-
Specify the ACL in the request body
-
Specify permissions using request headers
Note
You cannot specify access permission using both the body and the request headers.
Depending on your application needs, you may choose to set the ACL on a bucket 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, then you can continue to use that approach.
Requests
Syntax
The following request shows the syntax for sending the ACL in the request body. If you want to use headers to specify the permissions for the bucket, you cannot send the ACL in the request body. Instead, see Request Headers section for a list of headers you can use.
PUT /?acl HTTP/1.1 Host:
BucketName
.s3.amazonaws.com Date:date
Authorization:authorization string
(see Authenticating Requests (AWS Signature Version 4)) <AccessControlPolicy> <Owner> <ID>ID
</ID> <DisplayName>EmailAddress
</DisplayName> </Owner> <AccessControlList> <Grant> <Grantee xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="CanonicalUser"> <ID>ID
</ID> <DisplayName>EmailAddress
</DisplayName> </Grantee> <Permission>Permission
</Permission> </Grant> ... </AccessControlList> </AccessControlPolicy>
Request Parameters
This implementation of the operation does not use request parameters.
Request Headers
You can use the following request headers in addition to the Common Request Headers.
These headers enable you to set access permissions using one of the following methods:
-
Specify a canned ACL, or
-
Specify the permission for each grantee explicitly
Amazon S3 supports a set of predefined ACLs, known as canned ACLs. Each canned ACL has a predefined set of grantees and permissions. For more information, see Canned ACL. To grant access permissions by specifying canned ACLs, you use the following header and specify the canned ACL name as its value. If you use this header, you cannot use other access control specific headers in your request.
Name | Description | Required |
---|---|---|
x-amz-acl
|
Sets the ACL of the bucket using the specified canned ACL. For more information, go to Canned ACL in the Amazon Simple Storage Service Developer Guide. Type: String Valid Values: private | public-read | public-read-write | authenticated-read Default: private |
No |
If you need to grant individualized access permissions on a bucket, you can use the
following "x-amz-grant-permission" headers. When using these
headers you specify explicit access permissions and grantees (AWS accounts or
a
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.
Note
Each of the following request headers maps to specific permissions Amazon S3 supports in an ACL. For more information go to Access Control List (ACL) Overview.
Name | Description | Required |
---|---|---|
x-amz-grant-read
|
Allows the specified grantee(s) to list the objects in the bucket. Type: String Default: None Constraints: None |
No |
x-amz-grant-write
|
Allows the specified grantee(s) to create, overwrite, and delete any object in the bucket. Type: String Default: None Constraints: None |
No |
x-amz-grant-read-acp
|
Allows the specified grantee(s) to read the bucket ACL. Type: String Default: None Constraints: None |
No |
x-amz-grant-write-acp
|
Allows the specified grantee(s) to write the ACL for the applicable bucket. Type: String Default: None Constraints: None |
No |
x-amz-grant-full-control
|
Allows the specified grantee(s) the READ, WRITE, READ_ACP, and WRITE_ACP permissions on the bucket. Type: String Default: None Constraints: None |
No |
For each of these headers, the value is a comma-separated list of one or more grantees.
You
specify each grantee as a type=value
pair, where the type
can be one of the following:
-
emailAddress — if value specified is the email address of an AWS account
-
id — if value specified is the canonical User ID of an AWS account
-
uri — if granting permission to a predefined Amazon S3 group.
For example, the following x-amz-grant-write
header grants create, overwrite,
and delete objects permission to LogDelivery
group predefined by Amazon
S3 and two AWS accounts identified by their email addresses.
x-amz-grant-write: uri="http://acs.amazonaws.com/groups/s3/LogDelivery", emailAddress="xyz@amazon.com", emailAddress="abc@amazon.com"
For more information, go to Access Control List (ACL) Overview. For more information about bucket logging, go to Server Access Logging.
Request Elements
If you decide to use the request body to specify an ACL, you must use the following elements.
Note
If you request the request body, you cannot use the request headers to set an ACL.
Name | Description | Required |
---|---|---|
AccessControlList |
Container for Grant, Grantee, and Permission Type: Container Ancestors: |
No |
AccessControlPolicy |
Contains the elements that set the ACL permissions for an object per grantee. Type: String Ancestors: None |
No |
DisplayName |
Screen name of the bucket owner. Type: String Ancestors: |
No |
Grant |
Container for the grantee and his or her permissions. Type: Container Ancestors: |
No |
Grantee |
The subject whose permissions are being set. For more information, see Grantee Values. Type: String Ancestors: |
No |
ID |
ID of the bucket owner, or the ID of the grantee. Type: String Ancestors: |
No |
Owner |
Container for the bucket owner's display name and ID. Type: Container Ancestors: |
Yes |
Permission |
Specifies the permission given to the grantee. Type: String Valid Values: FULL_CONTROL | WRITE | WRITE_ACP | READ | READ_ACP Ancestors: |
No |
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:
<Grantee xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="CanonicalUser"><ID><replaceable>ID</replaceable></ID><DisplayName><replaceable>GranteesEmail</replaceable></DisplayName> </Grantee>
DisplayName
is optional and ignored in the request. -
By Email address:
<Grantee xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="AmazonCustomerByEmail"><EmailAddress><replaceable>Grantees@email.com</replaceable></EmailAddress>lt;/Grantee>
The grantee is resolved to the
CanonicalUser
and, in a response to aGET Object acl
request, appears as theCanonicalUser
. -
By URI:
<Grantee xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="Group"><URI><replaceable>http://acs.amazonaws.com/groups/global/AuthenticatedUsers</replaceable></URI></Grantee>
Responses
Response Headers
The operation returns response headers that are common to most responses. For more information, see Common Response Headers.
Response Elements
This operation does not return response elements.
Special Errors
This operation does not return special errors. For general information about Amazon S3 errors and a list of error codes, see Error Responses.
Examples
Sample Request: Access permissions specified in the body
The following request grants access permission to the existing examplebucket
bucket. The request specifies the ACL in the body. In addition to granting full
control to the bucket owner, the XML specifies the following grants.
-
Grant
AllUsers
group READ permission on the bucket. -
Grant the
LogDelivery
group WRITE permission on the bucket. -
Grant an AWS account, identified by email address, WRITE_ACP permission.
-
Grant an AWS account, identified by canonical user ID, READ_ACP permission.
PUT ?acl HTTP/1.1 Host: examplebucket.s3.amazonaws.com Content-Length: 1660 x-amz-date: Thu, 12 Apr 2012 20:04:21 GMT Authorization:
authorization string
<AccessControlPolicy xmlns="http://s3.amazonaws.com/doc/2006-03-01/"> <Owner> <ID>852b113e7a2f25102679df27bb0ae12b3f85be6BucketOwnerCanonicalUserID</ID> <DisplayName>OwnerDisplayName</DisplayName> </Owner> <AccessControlList> <Grant> <Grantee xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="CanonicalUser"> <ID>852b113e7a2f25102679df27bb0ae12b3f85be6BucketOwnerCanonicalUserID</ID> <DisplayName>OwnerDisplayName</DisplayName> </Grantee> <Permission>FULL_CONTROL</Permission> </Grant> <Grant> <Grantee xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="Group"> <URI xmlns="">http://acs.amazonaws.com/groups/global/AllUsers</URI> </Grantee> <Permission xmlns="">READ</Permission> </Grant> <Grant> <Grantee xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="Group"> <URI xmlns="">http://acs.amazonaws.com/groups/s3/LogDelivery</URI> </Grantee> <Permission xmlns="">WRITE</Permission> </Grant> <Grant> <Grantee xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="AmazonCustomerByEmail"> <EmailAddress xmlns="">xyz@amazon.com</EmailAddress> </Grantee> <Permission xmlns="">WRITE_ACP</Permission> </Grant> <Grant> <Grantee xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="CanonicalUser"> <ID xmlns="">f30716ab7115dcb44a5ef76e9d74b8e20567f63TestAccountCanonicalUserID</ID> </Grantee> <Permission xmlns="">READ_ACP</Permission> </Grant> </AccessControlList> </AccessControlPolicy>
Sample Response
HTTP/1.1 200 OK x-amz-id-2: NxqO3PNiMHXXGwjgv15LLgUoAmPVmG0xtZw2sxePXLhpIvcyouXDrcQUaWWXcOK0 x-amz-request-id: C651BC9B4E1BD401 Date: Thu, 12 Apr 2012 20:04:28 GMT Content-Length: 0 Server: AmazonS3
Sample Request: Access permissions specified using headers
The following request uses ACL-specific request headers to grant the following permissions:
-
Write permission to the Amazon S3
LogDelivery
group and an AWS account identified by the email xyz@amazon.com. -
Read permission to the Amazon S3
AllUsers
group
PUT ?acl HTTP/1.1 Host: examplebucket.s3.amazonaws.com x-amz-date: Sun, 29 Apr 2012 22:00:57 GMT x-amz-grant-write: uri="http://acs.amazonaws.com/groups/s3/LogDelivery", emailAddress="xyz@amazon.com" x-amz-grant-read: uri="http://acs.amazonaws.com/groups/global/AllUsers" Accept: */* Authorization:
authorization string
Sample Response
HTTP/1.1 200 OK x-amz-id-2: 0w9iImt23VF9s6QofOTDzelF7mrryz7d04Mw23FQCi4O205Zw28Zn+d340/RytoQ x-amz-request-id: A6A8F01A38EC7138 Date: Sun, 29 Apr 2012 22:01:10 GMT Content-Length: 0 Server: AmazonS3