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From "Emmanuel Lecharny (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DIRSERVER-1301) Colliding attributeType and objectClass names not supported, error messages unhelpful
Date Tue, 18 Aug 2009 10:12:14 GMT

    [ https://issues.apache.org/jira/browse/DIRSERVER-1301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12744443#action_12744443
] 

Emmanuel Lecharny commented on DIRSERVER-1301:
----------------------------------------------

We must review the OidRegistry in order to allow such name collisions. Basically, we always
know which kind of SchemaObject we are dealing with, we then should pass it to the OidRegistry
when registering or searching for some name.

> Colliding attributeType and objectClass names not supported, error messages unhelpful
> -------------------------------------------------------------------------------------
>
>                 Key: DIRSERVER-1301
>                 URL: https://issues.apache.org/jira/browse/DIRSERVER-1301
>             Project: Directory ApacheDS
>          Issue Type: Bug
>    Affects Versions: 1.5.4
>            Reporter: Aleksander Adamowski
>             Fix For: 2.0.0-RC1
>
>
> When trying to dynamically add an attributeType and an objectClass with the same name
(case insensitively), one gets a NamingException with a completely unhelpful error message.
> e.g. Suppose we have the following schema LDIF and import it to directory:
> ###########
> version:   1
> dn: cn=schema
> changetype: modify
> add: attributeTypes
> attributeTypes: ( 1.3.6.1.4.1.18060.0.4.3.2.1
>         NAME 'ship'
>         DESC 'a reference to a ship'
>         EQUALITY distinguishedNameMatch
>         SYNTAX 1.3.6.1.4.1.1466.115.121.1.12
>         SINGLE-VALUE
>  )
> -
> add: objectClasses
> objectClasses: ( 1.3.6.1.4.1.18060.0.4.3.3.1
>         NAME 'ship'
>         DESC 'An entry which represents a ship'
>         SUP top
>         STRUCTURAL
>         MUST cn
>         MAY ( description )
>  )
> objectClasses: ( 1.3.6.1.4.1.18060.0.4.3.3.2
>         NAME 'port'
>         DESC 'An entry which represents a port'
>         SUP top
>         STRUCTURAL
>         MUST cn
>         MAY ( description $ ship )
>  )
> -
> ###########
> javax.naming.directory.NoSuchAttributeException: attributeType w/ OID 1.3.6.1.4.1.18060.0.4.3.3.1
not registered!
> 	at org.apache.directory.server.schema.registries.DefaultAttributeTypeRegistry.lookup(DefaultAttributeTypeRegistry.java:198)
> 	at org.apache.directory.server.core.schema.ObjectClassImpl.getMayList(ObjectClassImpl.java:104)
> 	at org.apache.directory.server.utils.AttributesFactory.getAttributes(AttributesFactory.java:393)
> 	at org.apache.directory.server.utils.AttributesFactory.getAttributes(AttributesFactory.java:74)
> 	at org.apache.directory.server.core.schema.SchemaSubentryModifier.addSchemaObject(SchemaSubentryModifier.java:188)
> 	at org.apache.directory.server.core.schema.SchemaOperationControl.modifyAddOperation(SchemaOperationControl.java:885)
> 	at org.apache.directory.server.core.schema.SchemaOperationControl.modifySchemaSubentry(SchemaOperationControl.java:568)
> 	at org.apache.directory.server.core.schema.SchemaInterceptor.modify(SchemaInterceptor.java:1493)
> 	at org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1214)
> 	at org.apache.directory.server.core.operational.OperationalAttributeInterceptor.modify(OperationalAttributeInterceptor.java:198)
> 	at org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1214)
> 	at org.apache.directory.server.core.changelog.ChangeLogInterceptor.modify(ChangeLogInterceptor.java:221)
> 	at org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1214)
> 	at org.apache.directory.server.core.exception.ExceptionInterceptor.modify(ExceptionInterceptor.java:324)
> 	at org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1214)
> 	at org.apache.directory.server.core.authz.DefaultAuthorizationInterceptor.modify(DefaultAuthorizationInterceptor.java:272)
> 	at org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1214)
> 	at org.apache.directory.server.core.authz.AciAuthorizationInterceptor.modify(AciAuthorizationInterceptor.java:565)
> 	at org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1214)
> 	at org.apache.directory.server.core.referral.ReferralInterceptor.modify(ReferralInterceptor.java:403)
> 	at org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1214)
> 	at org.apache.directory.server.core.authn.AuthenticationInterceptor.modify(AuthenticationInterceptor.java:336)
> 	at org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1214)
> 	at org.apache.directory.server.core.normalization.NormalizationInterceptor.modify(NormalizationInterceptor.java:127)
> 	at org.apache.directory.server.core.interceptor.InterceptorChain.modify(InterceptorChain.java:819)
> 	at org.apache.directory.server.core.DefaultOperationManager.modify(DefaultOperationManager.java:631)
> 	at org.apache.directory.server.core.DefaultCoreSession.modify(DefaultCoreSession.java:448)
> 	at org.apache.directory.server.core.integ.IntegrationUtils.injectEntries(IntegrationUtils.java:109)
> ...
> It seems like when resolving the may list of objectClass "port", the OID was resolved
to the OID of attribute "ship", not objectclass "ship".
> Two things to note here:
> 1) Netscape/Red Hat/Fedora Directory server supports adding objectClasses that have a
name that's colliding with an attributeType's name.
> 2) Even if such behaviour violates an RFC (I'm not aware of such limitations), the exception
should point out that name collisions between objectclasses and attributenames aren't allowed.
> I think that the OID registries should be separate for attributeTypes and objectClasses.

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