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Returns the policy of a specified bucket.
Directory buckets - For directory buckets, you must make requests for this
API operation to the Regional endpoint. These endpoints support path-style requests
in the format https://s3express-control.region-code.amazonaws.com/bucket-name
. Virtual-hosted-style requests aren't supported. For more information about endpoints
in Availability Zones, see Regional
and Zonal endpoints for directory buckets in Availability Zones in the Amazon
S3 User Guide. For more information about endpoints in Local Zones, see Available
Local Zone for directory buckets in the Amazon S3 User Guide.
If you are using an identity other than the root user of the Amazon Web Services account
that owns the bucket, the calling identity must both have the GetBucketPolicy
permissions on the specified bucket and belong to the bucket owner's account in order
to use this operation.
If you don't have GetBucketPolicy
permissions, Amazon S3 returns a 403 Access
Denied
error. If you have the correct permissions, but you're not using an identity
that belongs to the bucket owner's account, Amazon S3 returns a 405 Method Not
Allowed
error.
To ensure that bucket owners don't inadvertently lock themselves out of their own
buckets, the root principal in a bucket owner's Amazon Web Services account can perform
the GetBucketPolicy
, PutBucketPolicy
, and DeleteBucketPolicy
API actions, even if their bucket policy explicitly denies the root principal's access.
Bucket owner root principals can only be blocked from performing these API actions
by VPC endpoint policies and Amazon Web Services Organizations policies.
General purpose bucket permissions - The s3:GetBucketPolicy
permission
is required in a policy. For more information about general purpose buckets bucket
policies, see Using
Bucket Policies and User Policies in the Amazon S3 User Guide.
Directory bucket permissions - To grant access to this API operation, you
must have the s3express:GetBucketPolicy
permission in an IAM identity-based
policy instead of a bucket policy. Cross-account access to this API operation isn't
supported. This operation can only be performed by the Amazon Web Services account
that owns the resource. For more information about directory bucket policies and permissions,
see Amazon
Web Services Identity and Access Management (IAM) for S3 Express One Zone in the
Amazon S3 User Guide.
General purpose buckets example bucket policies - See Bucket policy examples in the Amazon S3 User Guide.
Directory bucket example bucket policies - See Example bucket policies for S3 Express One Zone in the Amazon S3 User Guide.
Directory buckets - The HTTP Host header syntax is s3express-control.region-code.amazonaws.com
.
The following action is related to GetBucketPolicy
:
For .NET Core this operation is only available in asynchronous form. Please refer to GetBucketPolicyAsync.
Namespace: Amazon.S3
Assembly: AWSSDK.S3.dll
Version: 3.x.y.z
public virtual GetBucketPolicyResponse GetBucketPolicy( GetBucketPolicyRequest request )
Container for the necessary parameters to execute the GetBucketPolicy service method.
This example shows how to Get, Put and Delete bucket policies.
// Create a client AmazonS3Client client = new AmazonS3Client(); // Put sample bucket policy (overwrite an existing policy) string newPolicy = @"{ ""Statement"":[{ ""Sid"":""BasicPerms"", ""Effect"":""Allow"", ""Principal"": ""*"", ""Action"":[""s3:PutObject"",""s3:GetObject""], ""Resource"":[""arn:aws:s3:::samplebucketname/*""] }]}"; PutBucketPolicyRequest putRequest = new PutBucketPolicyRequest { BucketName = "SampleBucket", Policy = newPolicy }; client.PutBucketPolicy(putRequest); // Retrieve current policy GetBucketPolicyRequest getRequest = new GetBucketPolicyRequest { BucketName = "SampleBucket" }; string policy = client.GetBucketPolicy(getRequest).Policy; Console.WriteLine(policy); Debug.Assert(policy.Contains("BasicPerms")); // Delete current policy DeleteBucketPolicyRequest deleteRequest = new DeleteBucketPolicyRequest { BucketName = "SampleBucket" }; client.DeleteBucketPolicy(deleteRequest); // Retrieve current policy and verify that it is null policy = client.GetBucketPolicy(getRequest).Policy; Debug.Assert(policy == null);
.NET Framework:
Supported in: 4.5 and newer, 3.5