Help wanted: Parse and import the LDAP display specifiers
Andrew Kroeger
andrew at id10ts.net
Sun Sep 6 07:08:20 MDT 2009
All:
I am re-sending this e-mail without the huge attachment that adds the
MS-provided LDIF files to the source tree, as suggested by abartlet.
The sheer size of the LDIF files (even when bzipped) got stuck in the
samba-technical mailing list moderation queue.
As the bulk of the original attachment was the original files sent by
MS, and my patchset includes a patch to make the files more
ldif-compliant, I am attaching the remaining patches to this e-mail.
These patches are dependent on the MS-provided LDIF files being added
under the source4/setup/display-specifiers/ directory. The patch that I
created to do this can be pulled from the display-specifiers branch in
the git://github.com/id10ts/samba.git repo, as commit
1249d1036158c4c8bb21f3600f0e8fa354657a65.
After the MS-provided LDIF files have been added in the appropriate
location, the remaining patches in this e-mail can be applied.
---
All:
Please find attached a set of patches to massage the MS-supplied display
specifiers and import them as part of the provision. The patches are
also available in the display-specifiers branch at
git://github.com/id10ts/samba.git.
Andrew Bartlett wrote:
> On Wed, 2009-09-02 at 10:24 +0530, Sreepathi Pai wrote:
>> On Wed, Sep 2, 2009 at 7:57 AM, Andrew Bartlett<abartlet at samba.org> wrote:
>>
>>> I wondered if you (or someone else on the list) would like to do the
>>> same with the display specifiers?
>> Sure. I had a look at them at them, and they're in much better shape
>> the schema files! In fact, I was wondering if:
>>
>> * commenting the license text at the top
>> * possibly removing "changetype: add" from each entry, and
>> * replacing <configuration NC Distinguished Name> with ${CONFIGDN}
>>
>> would do the job?
>
> I think so. And then just having that processing as part of the
> provision, like the schema.
I added all 5 files sent by Microsoft under setup/display-specifiers/,
but I import the latest W2K8R2 file (DisplaySpecifiers-Win2k8R2.txt)
during the provision.
Using the ms_schema.py file as a template, there were a few more changes
made in addition to what Sreepathi mentioned above:
- I removed some transformations that were only needed for the schema
(e.g. bit fields and multivalued attribute processing).
- I added the capability to properly parse and output base64-encoded values.
- I removed some attributes that are automatically handled internally by
Samba and were either not present or were explicitly removed from
display_specifiers.ldif (e.g. distinguishedName, instanceType, name,
objectCategory, and (if set to the default of TRUE) showInAdvancedViewOnly).
>> As far as I can tell, there are no fields which
>> require pre-processing like in the AD Schema (e.g. systemFlags or
>> systemFlagsEx which had to be converted from their constant names to
>> their constant values). They've used the numeric values directly here.
>
> Excellent. I did think it looked like an easier task.
>
>> I've only had a quick look and can only look at this closely over the
>> weekend (sorry!). Do let me know if you try out the above and whether
>> it works or not.
>
> That would be great!
>
> Andrew Bartlett
I verified the changes using an English version of Windows and also made
sure that "make test" behaved the same after the changes. I do not have
a non-English Windows version to test with, but I did verify the
internationalized strings display (although I don't know exactly what
they say) using an LDAP browser under Windows to view some of the values
under other languages. I would appreciate if someone could verify that
everything displays as expected in a non-English version of Windows.
There is one outstanding issue relating to the licensing of the new
ms_display_specifiers.py script I made as a derivative of Sreepathi's
ms_schema.py script. I added a GPL3+ disclaimer to the top of the new
script. Sreepathi, could you please explicitly confirm that placing
that license disclaimer on a derivative of your work is OK, or could
someone with better licensing knowledge confirm that what I am doing is
OK in terms of the Samba license? I have no problems removing the
license disclaimer from the file if there are problems, but I would
prefer including an explicit license statement if possible.
Sincerely,
Andrew Kroeger
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