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Posted to issues@ozone.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2026/10/02 17:05:00 UTC
[jira] [Updated] (HDDS-16672) S3 Gateway corrupts Unicode user metadata values
[ https://issues.apache.org/jira/browse/HDDS-16672?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated HDDS-16672:
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Labels: pull-request-available (was: )
> S3 Gateway corrupts Unicode user metadata values
> ------------------------------------------------
>
> Key: HDDS-16672
> URL: https://issues.apache.org/jira/browse/HDDS-16672
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Shuo Huang
> Assignee: Shuo Huang
> Priority: Major
> Labels: pull-request-available
>
> h3. Problem
> S3 Gateway corrupts non-ASCII characters in user-defined object metadata.
> For example, an object uploaded with:
> {{x-amz-meta-meta1: Hello Worldé}}
> returns:
> {{x-amz-meta-meta1: Hello Worldé}}
> AWS S3 supports Unicode characters in user-defined metadata values.
> h3. Reproduction
> Start an Ozone cluster and configure ceph/s3-tests to use its S3 endpoint, then run:
> {{S3TEST_CONF=<path-to-s3tests.conf> python -m pytest -v s3tests/functional/test_s3.py::test_object_set_get_unicode_metadata}}
> h3. Actual result
> The test fails with:
> {{AssertionError: assert 'Hello Worldé' == 'Hello Worldé'}}
> h3. Expected result
> The metadata value returned by GetObject should match the uploaded value:
> {{Hello Worldé}}
> h3. Root cause
> The UTF-8 header bytes are exposed to S3 Gateway as a byte-preserving Latin-1 string. {{EndpointBase.getCustomMetadataFromHeaders()}} stores that string without decoding it back to UTF-8.
> h3. References
> * [AWS S3 user-defined metadata|https://docs.aws.amazon.com/AmazonS3/latest/userguide/UsingMetadata.html]
> * [ceph/s3-tests reproduction|https://github.com/ceph/s3-tests/blob/fb8b73092bb1dd8db829f1205a9e52e73bf9a232/s3tests/functional/test_s3.py#L1885-L1899]
> * [Ozone S3 compatibility report|https://ozone.s3.peterxcli.dev/]
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