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Ganymede 0.99.6 released

Aug 28, 1999, 04:16 (0 Talkback[s])

Ganymede 0.99.6 is now available for download at


Mirrors: (may take a short while to update) (USA) (Australia/NZ only) (KDD R&D Labs, Saitama, Japan)

Ganymede is a GPL'ed network directory management system written in Java, providing support for team management of NIS, DNS, etc.


A month's worth of bug fixes, including fixes to GUI components in the client, improvements to the server's handling of new object creation, and improvements to some of the DBEditObject hooks used in creating custom plug-ins. Added support for MD5-hashed passwords to the Ganymede server, but have not yet made the Linux and BSD schema kits take advantage of this capability.

Tweaked the Ganymede client to work properly under the new JDK 1.3 beta (Kestrel) that Sun released this week.

For 0.99.7 I'm planning on significantly changing the way that schema kits are packaged and installed, to support independent development and distribution of schema kits. Documentation and DNS schema kit work are both still in the pipeline for the future.

Changes from 0.99.5 to 0.99.6

RELEASE DATE: August 27, 1999

1. [SERVER DISTRIB] Fixed decodeDB

decodeDB was failing because the properties weren't being loaded and the db load routine was attempting to find the Ganymede.journal property.

2. [SCHEMA] More improvements to gasharl schema.

Fixed ARL maildirect file generation to only emit entries for normal category user records, made it possible to clear the primary user field for systems. Fixed a minor infidelity in hosts_info generation.

3. [CLIENT] Fixed problems with string area gui object

I fixed a couple of problems with the JstringArea class used in the Ganymede client to display and edit multi-line string fields.

I had to make some changes to the code so that it really didn't try to do editing when the field was not editable, and so that when errors are returned when the JstringArea is edited, the focus-loss update trigger won't get into an infinite loop, popping an error dialog up over and over and over and over again.

The JstringArea is one of the least used GUI components in the client, which is why this wasn't detected and fixed a long time ago.

4. [CLIENT] Fixed error in handling fixable transaction failure

The change I made in 0.99.5 to the client's handling of catastrophic transaction commit failure broke proper handling of non-catastrophic, correctable commit failure.. if such a transaction failed to commit, gclient would reset its state, even though the transaction was still open and repairable.

gclient.commitTransaction() now handles both circumstances properly.

5. [SERVER] Added support for MD5-hashed passwords.

Added MD5 support to Bumped DBStore.minor_version to 13 for MD5 support.

The server can now store and authenticate using MD5-hashed passwords. Schema kits can be written to input MD5-hashed passwords into the system as well as UNIX crypt()'ed passwords.

Neither the Linux nor the BSD schemas have yet been modified to support MD5 passwords, but the PasswordDBField code now supports MD5.

6. [SERVER] Improved the server's password reset logic

Previously, if the -resetadmin parameter was given on the command line, the server would always open a new transaction and reset the supergash password. Now the server checks to see if the password has changed before doing the edit. This cuts down on the redundant 'hey, i set the supergash password!' mail that Ganymede was sending out.

7. [SERVER] Fixed adminPersonaCustom.convertAdminInvidToString()

The new DBLog transaction logic for finding an email address to mail to was broken when the change was made by an end-user and not by an admin persona. I fixed adminPersonaCustom.convertAdminInvidToString() so that it can gracefully deal with the possibility that the 'admin invid' in an DBLogEvent produced by the DBEditSet commit() routine is actually an end-user Invid.

8. [SERVER] Reworked DBSession.createDBObject()

The old createDBObject() call in DBSession had problems if a user in an owner group tried to create a new object at the same time that another user had the owner group checked out for editing.. the object create would fail in an ungraceful manner, resulting in the server thinking that the user had a negative number of objects checked out, and getting very confused.

The DBSession createDBObject() code now does a transaction checkpoint before attempting to place the newly created object in the proper owner groups. If one of the owner groups turns out to be unavailable, the object create will fail and the transaction will be rolled back.

I also modified createDBObject() to return a ReturnVal so that detailed failure information can be returned to the user if object creation fails.

This is continuing a trend.. I've been finding the need to go through the code and make some of the server's internal paths better about returning detailed error information.

9. [SERVER] Improved DBEditSet.rollback() code

Minor changes to the transaction rollback code, to take advantage of the optimized vector compare operations in arlut.csd.Util.VectorUtils. Should make rollbacks in very large transactions noticeably faster.

10. [DISTRIBUTION] Added template schema directory, fixed installServer

In 0.99.5 and for awhile before, the installServer script would break if you tried to install the Ganymede server without choosing a schema kit, which caused installServer to break with a complaint about

'Couldn't write schema build config'.

installServer now goes ahead and installs an empty schema directory with all of the build scaffolding required to develop your own schema kit.

I am planning on significantly revising the way that schema kits are packaged and distributed to make it easier to distribute schema kits independently, but that is something for a future revision, I think.

Thanks to Glen Joseph for reporting this.

11. [SERVER] Reworked embedded object initialization

In 0.99.5 and before, embedded objects had their custom initializeNewObject() methods called before the embedded object was linked into its container, making it hard for custom code to make initialization decisions based on the container's state.

This has been fixed; initializeNewObject() for embedded object types is now called after the object has been linked into its parent.

In addition, initializeNewObject() now returns a ReturnVal rather than a boolean, to allow detailed error messages to be returned to the user. All custom DBEditObject subclasses included in the Ganymede distribution have been brought up to date with the new initializeNewObject() method signature.

Thanks to Martin Schneider for bringing this to my attention.

12. [SERVER] DBEditObject.createNewEmbeddedObject() now returns ReturnVal

Another change made to provide better feedback paths for server errors.

This method wasn't one that was ever overridden in the schema kits provided with Ganymede, but adopters who did override this method will need to modify their custom code to return a ReturnVal rather than a boolean.

13. [CLIENT] Fixed string field GUI component.. now limits size properly

Way back in dev6a, I modified the arlut.csd.JDataComponent.JentryField class so that it would employ a custom DocumentModel to make sure bad characters couldn't be entered into a string/number/ip field in the Ganyemde client.

Looks like I had somehow missed testing the code which was supposed to prevent entry of characters after the size limitation on the field had been met. There was code there for that function, but it wasn't correctly functional.

Modified the arlut.csd.JDataComponent.JentryDocument class to check for the number of characters currently in the JentryField versus the stated limit (if any) on the number of characters allowed in the field.

14. [SERVER] Moved GanymedeServer creation, binding to end of server start

Previously there was a remote chance that a user or admin console could attach to the server before all startup housekeeping was taken care of. The GanymedeServer RMI binding is now the very last thing done by Ganymede.main().

15. [CLIENT] Fixed client behavior for Java 1.3 beta (Kestrel)

In the new Java 1.3 beta, code-named Kestrel, a lot of JInternalFrame code has been changed. Several things in the Ganymede client had to be tweaked to insure internal windows in the Ganymede client work acceptably well with all existing versions of Swing.

Jonathan Abbey,
Applied Research Laboratories, The University of Texas at Austin
Ganymede, a free NIS/DNS management system,