Aws-sdk-java-v2: S3's GetObjectResponse.contentRange() returns null with range request

[flexfrank]

Expected Behavior

If S3Client.getObject() with range is called, GetObjectRequest.contentRange() should return value of Content-Range header (e.g. "bytes 100-200/1000").

Current Behavior

GetObjectRequest.contentRange() always returns null.

Possible Solution

'x-amz-content-range' header contains the desired value.
Populate contentRange field by 'x-amz-content-range' header instead of 'Content-Range' header.

Steps to Reproduce (for bugs)

        String bucketName = "specify your bucket";
        String key = "specify your object's key";
        GetObjectRequest getObjectRequest = GetObjectRequest.builder()
                .bucket(bucketName)
                .key(key)
                .range("bytes=2-3")
                .build();
        GetObjectResponse response = s3Client.getObject(getObjectRequest).response();
        assertNotNull(response.contentRange()); // -> fails

Your Environment

• AWS Java SDK version used: 2.5.25
• JDK version used: java version "1.8.0_191"
• Operating System and version: macOS 10.14.4

[varunnvs92]

Here is the behavior I observed:
1) when x-amz-te: append-md5 header is sent in the request, the response is 200 OK and content range is returned in x-amz-content-range header
2) when x-amz-te: append-md5 header is not present in request, respone is 206 Partial Content and range is returned in Content-Range header.

SDK only looks for Content-Range header in the response. As all requests in v2 sdk contain x-amz-te: append-md5 header, there is no Content-Range header and response.contentRange() is null.

I am not sure why there is difference in behavior. I will internally cut a ticket to S3 team and proceed based on the discussion.

[retrostar]

Hey @varunnvs92 :)
Is there some update or is it still under investigation?

[itsbriantruong]

I'm still seeing this issue, has there been any progress on the internal ticket? @varunnvs92

[millems]

@itsbriantruong Research has resumed. Sorry about the delay.

[millems]

This will be fixed with the next SDK release. We'll attempt to keep chasing this issue down service-side, but there's no reason to let it linger since we can cover it up for now on the client side.

[AlexJays2]

Hi @millems I'm also kinda stuck with this issue for now, and don't see a solution or workaround to make it work. Maybe I'm missing something or just don't get what you mean by cover it up on the client side?

[millems]

@AlexJays2 If you update to the latest S3 SDK version, we now "cover up" the service-side bug by copying the value to the proper field on their behalf.

Let me know if you're still having this issue in the latest SDK version.

[AlexJays2]

Hi @millems thank you for the super fast reply :) I'm currently using version 2.13.37 and experiencing this issue

/// Edit:

To round it up:
Local environment
OS: Ubuntu Focal Fossa 20.04
JDK: 11.0.7

and using the S3AsyncClient

[AlexJays2]

@millems it was a dependency issue. I'm sorry fro bothering you.