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feat(ldap.dn): Add support for different formats in ldap.dn2str() via flags#466

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droideck merged 4 commits intopython-ldap:mainfrom
spaceone:dn2str-flags
Aug 7, 2025
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feat(ldap.dn): Add support for different formats in ldap.dn2str() via flags#466
droideck merged 4 commits intopython-ldap:mainfrom
spaceone:dn2str-flags

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@spaceone spaceone commented Apr 1, 2022 •
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In C dn2str() supports flags which works by providing LDAP_DN_FORMAT_UFN, LDAP_DN_FORMAT_AD_CANONICAL, ….
These symbols do exist in Python, but could not be used ultimately because the Python counterpart was pure Python and did not pass to dn2str(3).

Fix #257

@spaceone spaceone force-pushed the dn2str-flags branch 2 times, most recently from 6948a13 to f25fa60 Compare April 1, 2022 14:01
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droideck commented Aug 31, 2022

@spaceone hi!
The PR says 'WIP', - is it still true?

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spaceone commented Sep 25, 2022

@spaceone hi! The PR says 'WIP', - is it still true?

@droideck Well, I would say it needs code clenaup but the functionality is done. But before I try to cleanup I would like to get feedback.

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droideck commented Sep 26, 2022

Overall, I think it'll be nice to have the feature.
@mistotebe what do you think?

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mistotebe commented Sep 27, 2022

I agree, getting better DN handling would be nice.

spaceone
spaceone commented Sep 28, 2022
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@spaceone spaceone changed the title WIP: Add support for flags in ldap.dn2str() feat(ldap.dn): Add support for different formats in ldap.dn2str() via flags Jun 3, 2025
@spaceone spaceone requested a review from mistotebe June 3, 2025 21:51
@spaceone spaceone force-pushed the dn2str-flags branch 3 times, most recently from ebdee71 to 7c80d5c Compare June 4, 2025 06:25
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spaceone commented Jun 4, 2025

Performance comparison:

C:

python3 -m timeit -s 'import ldap.dn' "ldap.dn.dn2str([[('uid', 'test, 42', 1)],[('ou', 'Testing', 1)],[('dc', 'example', 1)],[('dc', 'com', 1)]], ldap.DN_FORMAT_LDAPV3)"
200000 loops, best of 5: 1.41 usec per loop

Python:

python3 -m timeit -s 'import ldap.dn' "ldap.dn.dn2str([[('uid', 'test, 42', 1)],[('ou', 'Testing', 1)],[('dc', 'example', 1)],[('dc', 'com', 1)]], 0)"
50000 loops, best of 5: 4.1 usec per loop

mistotebe
mistotebe previously approved these changes Jun 10, 2025
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LGTM, maybe be consistent about using raw strings (r'cn=\C3...' vs. 'cn=\\C3...')

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spaceone commented Jun 11, 2025

LGTM, maybe be consistent about using raw strings (r'cn=\C3...' vs. 'cn=\\C3...')

Thanks for approval. I added a commit which unifies the whole file, to use raw-strings.

@spaceone spaceone requested a review from mistotebe June 13, 2025 21:53
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spaceone commented Jul 31, 2025

@droideck maybe also a review from your side?

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Looks good to me!

Could you please add a couple of more tests?
For NUL handling, for huge DNs, and for invalid flags.

If not, no worries, we can improve it later.

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spaceone commented Aug 1, 2025 •
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Looks good to me!

Thank you!

Could you please add a couple of more tests?
For NUL handling

I added every possible combination I can think of :-)

for huge DNs

Okay, added multiple string lengthes.

and for invalid flags.

this already existed.

@spaceone spaceone requested a review from droideck August 3, 2025 13:07
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Looks good to me!

Please, squash the commits if you want (or confirm if you want to have it as separate commits).

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spaceone commented Aug 7, 2025 •
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The commits should not be squashed, they follow conventional commit specification.

spaceone and others added 4 commits August 7, 2025 09:35
@spaceone
test(ldap.dn): Add test cases for ldap.dn.dn2str() with different for…
2767c29 
…mat flags
@spaceone
feat(ldap.dn): Add support for different formats in `ldap.dn.dn2str()…
6bece3e 
…` via flags

In C `dn2str()` supports `flags` which works by providing one of `LDAP_DN_FORMAT_UFN`, `LDAP_DN_FORMAT_AD_CANONICAL`, `LDAP_DN_FORMAT_DCE`, `LDAP_DN_FORMAT_LDAPV3`.
These symbols do exist in Python, but could not be used ultimately because the Python counterpart was pure Python and did not pass to `dn2str(3)`.

Fix python-ldap#257
@spaceone
feat(ldap.dn): add ldap.dn.normalize()
4dd2b52
@spaceone
style(Tests/t_ldap_dn): use raw strings instead of escape sequences
290dfe9
@droideck droideck merged commit 1d978c6 into python-ldap:main Aug 7, 2025
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@spaceone spaceone mentioned this pull request Aug 8, 2025
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@droideck droideck mentioned this pull request Oct 7, 2025
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@droideck droideck droideck approved these changes

@mistotebe mistotebe Awaiting requested review from mistotebe

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ldap.dn.dn2str() does not support flags

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