AmazonS3在具有不同身份验证的两个存储桶之间复制

我有两个桶,每个桶都有一个专用的ACL。

我有一个到源的经过身份验证的链接:

String source = "https://bucket-name.s3.region.amazonaws.com/key?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=...&X-Amz-SignedHeaders=host&X-Amz-Expires=86400&X-Amz-Credential=...Signature=..."

并一直尝试使用Java SDK CopyObjectRequest 要将其复制到另一个存储桶,请使用:

AWSCredentials credentials = new BasicAWSCredentials(accessKey, secretKey)
AWSCredentialsProvider provider = new AWSStaticCredentialsProvider(credentials)

AmazonS3 s3Client = AmazonS3ClientBuilder
  .standard()
  .withCredentials(provider)

AmazonS3URI sourceURI = new AmazonS3URI(URI(source))
CopyObjectRequest request = new CopyObjectRequest(sourceURI.getBucket, sourceURI.getKey, destinationBucket, destinationKey);
s3Client.copyObject(request);

然而,我得到 AmazonS3Exception: Access Denied (Service: Amazon S3; Status Code: 403; Error Code: AccessDenied 因为我的AWS凭证,我用它设置的SDK没有访问源文件的权限。

有没有一种方法可以提供经过身份验证的源URL而不仅仅是 bucket 和 key ?