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From "Ashutosh Chauhan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-5485) SBAP errors on null partition being passed into partition level authorization
Date Sat, 12 Oct 2013 16:26:43 GMT

    [ https://issues.apache.org/jira/browse/HIVE-5485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13793400#comment-13793400
] 

Ashutosh Chauhan commented on HIVE-5485:
----------------------------------------

+1

> SBAP errors on null partition being passed into partition level authorization
> -----------------------------------------------------------------------------
>
>                 Key: HIVE-5485
>                 URL: https://issues.apache.org/jira/browse/HIVE-5485
>             Project: Hive
>          Issue Type: Bug
>          Components: Authorization
>    Affects Versions: 0.12.0
>            Reporter: Sushanth Sowmyan
>            Assignee: Sushanth Sowmyan
>         Attachments: HIVE-5485.patch
>
>
> SBAP causes an NPE when null is passed in as a partition for partition-level or column-level
authorization.
> Personally, in my opinion, this is not a SBAP bug, but incorrect usage of AuthorizationProviders
- one should not be calling the column-level authorize (given that column-level is more basic
than partition-level) function and pass in a null as the partition value. However, that happens
on code introduced by HIVE-1887, and unless we rewrite that (and possibly a whole bunch more(will
need evaluation)), we have to accommodate that null and appropriately attempt to fall back
to table-level authorization in that case.
> The offending code section is in Driver.java:685
> {code}
>  678         // if we reach here, it means it needs to do a table authorization
>  679         // check, and the table authorization may already happened because of other
>  680         // partitions
>  681         if (tbl != null && !tableAuthChecked.contains(tbl.getTableName())
&&
>  682             !(tableUsePartLevelAuth.get(tbl.getTableName()) == Boolean.TRUE)) {
>  683           List<String> cols = tab2Cols.get(tbl);
>  684           if (cols != null && cols.size() > 0) {
>  685             ss.getAuthorizer().authorize(tbl, null, cols,
>  686                 op.getInputRequiredPrivileges(), null);
>  687           } else {
>  688             ss.getAuthorizer().authorize(tbl, op.getInputRequiredPrivileges(),
>  689                 null);
>  690           }
>  691           tableAuthChecked.add(tbl.getTableName());
>  692         }
> {code}



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