[ http://issues.apache.org/jira/browse/DERBY-1686?page=comments#action_12432148 ] Daniel John Debrunner commented on DERBY-1686: ----------------------------------------------
Yip said: > So according to 12.1 GR 4), for the problem statement, the view owner does > not have grantable > SELECT on the view since he does NOT have select privilege WITH GRANT OPTIONS > on the underlying > table(s) or view(s). Of course, thanks for pointing that out Yip. So the rule I've been using to say it's not an error is the rule that proves it's an error. :-) Sorry I was dumb here. I think I was of in too much the mindset that the object owner was all powerful either from that's the way it's been discussed during design & implementation or I read too much into the functional spec. So error it is. This has been interesting in that the SQL standard describes a model with real (implict) GRANT's for various actions by the special grantor _SYSTEM. I think I also that these grants are expectedbe reflected in meta data. However, Derby's implementation choose not to implement the literal model, but instead have behaviour that mimics the model (which is fine if the end-result is the same thing). I wonder though if following the model literally would lead to less special cases and not several back-and forths about how to address issues such as this. I mean here the back & forth on how to determine if the view select was grantable or not. > Grant/Revoke: Attempt to GRANT access to another user on a VIEW, created by > the current user with only SELECT privilege on the base table does not fail > ------------------------------------------------------------------------------------------------------------------------------------------------------- > > Key: DERBY-1686 > URL: http://issues.apache.org/jira/browse/DERBY-1686 > Project: Derby > Issue Type: Bug > Components: SQL > Affects Versions: 10.2.1.0 > Environment: Any > Reporter: Rajesh Kartha > Assigned To: Yip Ng > Fix For: 10.2.1.0 > > Attachments: derby1686-trunk-diff01.txt, derby1686-trunk-diff02.txt, > derby1686-trunk-diff03.txt, derby1686-trunk-diff04.txt, > derby1686-trunk-diff05.txt, derby1686-trunk-stat01.txt, > derby1686-trunk-stat02.txt, derby1686-trunk-stat03.txt, > derby1686-trunk-stat04.txt, derby1686-trunk-stat05.txt, > select_table_no_privilege.sql > > > With authentication on, attempting to execute a GRANT privilege to 'user3' > on a VIEW created by the 'user2' - who has only SELECT privilege > on the base table created by 'user1' does not fail. This results in 'user3' > getting access to the table created by 'user1' through the view. > I remember a discussion on the list to raise an error when an attempt is > execute a GRANT on the view, until WITH GRANT option is implemented. > Here is the repro: > java -cp derby.jar;.\derbytools.jar -Dderby.database.sqlAuthorization=true > -Dij.exceptionTrace=true org.apache.derby.tools.ij > select_table_no_privilege.sql > ij version 10.2 > ij> -- > --create db as user1 > -- > connect 'jdbc:derby:grntrevokedb;create=true' user 'user1'; > WARNING 01J14: SQL authorization is being used without first enabling > authentication. > ij> create table t1(id int); > 0 rows inserted/updated/deleted > ij> insert into t1 values(100); > 1 row inserted/updated/deleted > ij> insert into t1 values(200); > 1 row inserted/updated/deleted > ij> -- > --Grant select to user2 > -- > grant select on t1 to user2; > 0 rows inserted/updated/deleted > ij> -- > --Connect as user2 > -- > connect 'jdbc:derby:grntrevokedb;create=true' user 'user2'; > WARNING 01J01: Database 'grntrevokedb' not created, connection made to > existingdatabase instead. > WARNING 01J14: SQL authorization is being used without first enabling > authentication. > ij(CONNECTION1)> select * from user1.t1; > ID > ----------- > 100 > 200 > 2 rows selected > ij(CONNECTION1)> -- > --Create view > -- > create view v1 as select * from user1.t1; > 0 rows inserted/updated/deleted > ij(CONNECTION1)> select * from v1; > ID > ----------- > 100 > 200 > 2 rows selected > ij(CONNECTION1)> -- > --Grant select on view to user3. With the WITH GRANT option this should have > failed > -- > grant select on v1 to user3; > 0 rows inserted/updated/deleted > ij(CONNECTION1)> -- > --Connect as user3 > -- > connect 'jdbc:derby:grntrevokedb;create=true' user 'user3'; > WARNING 01J01: Database 'grntrevokedb' not created, connection made to > existing > database instead. > WARNING 01J14: SQL authorization is being used without first enabling > authentication. > ij(CONNECTION2)> -- > --No select privilege on base table user1.t1, hence will FAIL > -- > select * from user1.t1; > ERROR 28508: User 'USER3' does not have select permission on column 'ID' of > table 'USER1'.'T1'. > ERROR 28508: User 'USER3' does not have select permission on column 'ID' of > table 'USER1'.'T1'. > at org.apache.derby.iapi.error.StandardException.newException(Unknown > Source) > at > org.apache.derby.iapi.sql.dictionary.StatementColumnPermission.check(Unknown > Source) > at org.apache.derby.impl.sql.conn.GenericAuthorizer.authorize(Unknown > Source) > at > org.apache.derby.exe.ac295dc08bx010dx00a2x500ax00000011df100.fillResultSet(Unknown > Source) > at > org.apache.derby.exe.ac295dc08bx010dx00a2x500ax00000011df100.execute(Unknown > Source) > at org.apache.derby.impl.sql.GenericActivationHolder.execute(Unknown > Source) > at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown > Source) > at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown > Source) > at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source) > at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source) > at org.apache.derby.impl.tools.ij.ij.executeImmediate(Unknown Source) > at org.apache.derby.impl.tools.ij.utilMain.doCatch(Unknown Source) > at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(Unknown > Source) > at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source) > at org.apache.derby.impl.tools.ij.Main.go(Unknown Source) > at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source) > at org.apache.derby.impl.tools.ij.Main14.main(Unknown Source) > at org.apache.derby.tools.ij.main(Unknown Source) > ij(CONNECTION2)> -- > --Select from the view on the base table should also FAIL, but does not > -- > select * from user2.v1; > ID > ----------- > 100 > 200 > 2 rows selected > ij(CONNECTION2)> -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
