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https://issues.apache.org/jira/browse/HDDS-15137?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-15137:
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Labels: pull-request-available (was: )
> [STS] Ensure each S3 API has an associated S3 Action
> ----------------------------------------------------
>
> Key: HDDS-15137
> URL: https://issues.apache.org/jira/browse/HDDS-15137
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Fabian Morgan
> Assignee: Fabian Morgan
> Priority: Major
> Labels: pull-request-available
>
> In order to restrict STS tokens on a fine-grained basis by action, each S3
> api needs to be associated with an S3 action. For example, both *HeadObject*
> and *GetObject* S3 apis are associated with "s3:GetObject" action. The
> actions will not have the s3: prefix when used internally in Ozone and
> Ranger.
> Most apis have a 1-1 mapping with api and action like the *HeadObject* and
> *GetObject* apis mentioned previously. In order to avoid having to update
> multiple call sites, an *S3GActionIamMapper* is introduced to leverage the
> already existing api audit functionality and map api names to actions in a
> thread local (*S3Authentication.getS3Action()*). Then in
> *OmMetadataReader.checkAcls()*, the *maybeAttachS3ActionFromThreadLocal*
> function is used to read the thread local and set the s3Action in the
> RequestContext if it exists.
> However, *CopyObject* and *UploadPartCopy* are special cases. There is no
> "s3:CopyObject" nor "s3:UploadPartCopy" action, but rather they both require
> "s3:GetObject" action on the source object and "s3:PutObject" action on the
> destination object. For these special cases, a helper method
> *runWithS3ActionString* is introduced in *EndpointBase.java* so the proper
> permissions can be checked on the source and on the destination by
> temporarily overriding the value in the thread local while the operation is
> invoked, then setting it back to the previous value when done.
> Additionally, this ticket contains additional fixes found after testing with
> these new changes.
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