smengcl commented on code in PR #3971:
URL: https://github.com/apache/ozone/pull/3971#discussion_r1098117151
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hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/OzoneManager.java:
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@@ -2665,6 +2665,12 @@ public List<OmVolumeArgs> listVolumeByUser(String
userName, String prefix,
try {
metrics.incNumVolumeLists();
if (isAclEnabled) {
+ String remoteUserName = remoteUserUgi.getShortUserName();
+ // if not admin nor list my own volumes, check ACL.
+ if (!remoteUserName.equals(userName) && !isAdmin(remoteUserUgi)) {
Review Comment:
> The original problem is: volumes are returned to unauthorized users. Why
don't we just filter volumes to only return those that the requesting user
(remoteUserUgi) has access to?
Hi @duongkame , I understand your thought of returning the **intersection**
of volumes that both users has LIST permission to. But IMO that would lead to
further confusing behavior, and would expose some of the volumes the other user
has LIST permission to (partially leaking ACL). Rejecting outright for
non-admin and non-owner here is what I would prefer.
Also a note: The reason we check ACL against `OZONE_ROOT` is because of
`ozone.om.volume.listall.allowed`, where we want to mimic HDFS list `/`
behavior in ofs.
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