Piotr Kubowicz created DIRSERVER-1814:
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Summary: [patch] Using anon connection results in
UnbindRequestHandler reporting 'LdapNoSuchObjectException: ERR_268 Cannot find
a partition for '
Key: DIRSERVER-1814
URL: https://issues.apache.org/jira/browse/DIRSERVER-1814
Project: Directory ApacheDS
Issue Type: Bug
Components: core
Affects Versions: 2.0.0-M11
Reporter: Piotr Kubowicz
Priority: Minor
I use anonymous connection to an embedded ApacheDS instance
(DefaultDirectoryService allows anon access by default). I receive multiple
errors like:
8671 ERROR o.a.d.s.l.h.r.UnbindRequestHandler - ERR_169 failed to unbind
session properly
org.apache.directory.api.ldap.model.exception.LdapNoSuchObjectException:
ERR_268 Cannot find a partition for
at
org.apache.directory.server.core.shared.partition.DefaultPartitionNexus.getPartition(DefaultPartitionNexus.java:927)
~[org.apache.directory.server-2.0.0-M11.jar:2.0.0-M11]
at
org.apache.directory.server.core.shared.partition.DefaultPartitionNexus.unbind(DefaultPartitionNexus.java:794)
~[org.apache.directory.server-2.0.0-M11.jar:2.0.0-M11]
at
org.apache.directory.server.core.api.interceptor.BaseInterceptor$1.unbind(BaseInterceptor.java:266)
~[org.apache.directory.server-2.0.0-M11.jar:2.0.0-M11]
at
org.apache.directory.server.core.api.interceptor.BaseInterceptor.next(BaseInterceptor.java:690)
~[org.apache.directory.server-2.0.0-M11.jar:2.0.0-M11]
at
org.apache.directory.server.core.authn.AuthenticationInterceptor.unbind(AuthenticationInterceptor.java:1159)
~[org.apache.directory.server-2.0.0-M11.jar:2.0.0-M11]
at
org.apache.directory.server.core.DefaultOperationManager.unbind(DefaultOperationManager.java:1230)
~[org.apache.directory.server-2.0.0-M11.jar:2.0.0-M11]
at
org.apache.directory.server.core.shared.DefaultCoreSession.unbind(DefaultCoreSession.java:1073)
~[org.apache.directory.server-2.0.0-M11.jar:2.0.0-M11]
at
org.apache.directory.server.ldap.handlers.request.UnbindRequestHandler.handle(UnbindRequestHandler.java:50)
[org.apache.directory.server-2.0.0-M11.jar:2.0.0-M11]
at
org.apache.directory.server.ldap.handlers.request.UnbindRequestHandler.handle(UnbindRequestHandler.java:38)
[org.apache.directory.server-2.0.0-M11.jar:2.0.0-M11]
at
org.apache.directory.server.ldap.handlers.LdapRequestHandler.handleMessage(LdapRequestHandler.java:219)
[org.apache.directory.server-2.0.0-M11.jar:2.0.0-M11]
at
org.apache.directory.server.ldap.handlers.LdapRequestHandler.handleMessage(LdapRequestHandler.java:56)
[org.apache.directory.server-2.0.0-M11.jar:2.0.0-M11]
at
org.apache.mina.handler.demux.DemuxingIoHandler.messageReceived(DemuxingIoHandler.java:232)
[org.apache.mina.core-2.0.4.jar:na]
at
org.apache.directory.server.ldap.LdapProtocolHandler.messageReceived(LdapProtocolHandler.java:217)
[org.apache.directory.server-2.0.0-M11.jar:2.0.0-M11]
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:716)
[org.apache.mina.core-2.0.4.jar:na]
Debugging reveals that when using anonymous connection, DN in
UnbindOperationContext is empty. If I connect using admin account, this errors
stop appearing.
This is not just a matter of printing out an exception: looking at
UnbindRequestHandler source code, the exception is thrown from
session.getCoreSession().unbind( unbindRequest );
so the following lines will not be executed due to the exception:
session.getIoSession().close( true );
ldapServer.getLdapSessionManager().removeLdapSession(
session.getIoSession() );
I don't know how important are the two last ones. Please consider using Java
'finally' block if omitting these operations may leave server in an unstable
state.
To fix the bug, I suggest skipping unbind operation for an empty DN from
UnbindOperationContext - see the attached patch. I leave UnbindRequestHandler
changes for your own decision, as I don't know the code good enough.
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