Allow ldap_dynamic_group_member_url to be a filter

[Cybso]

This change allows dynamic_group_member_url of the user_ldap module to
be the filter itself instead of an attribute where the filter can
be read from. The value is assumed to be a filter when it starts with
a round bracket. The substring '%gid' will be replaced by the group's
DN.

This allows group members to be resolved by LDAP_MATCHING_RULE_IN_CHAIN
on Active Directory servers. Example:

 (&(objectClass=person)(memberOf:1.2.840.113556.1.4.1941:=%gid))

Returns all persons that are either direct members of %gid or members
of another group that is member of %gid.

An alternative implementation would be to implement this as a dedicated settings field, but this "simple" solution works for me ;-)

Signed-off-by: Roland Tapken roland@bitarbeiter.net

[Cybso]

Why has the jsunit test being aborted?! However, since this patch did not change the UI it shouldn't matter.

[codecov]

Codecov Report

Merging #8230 into master will increase coverage by 0.06%.
The diff coverage is 0%.

@@ Coverage Diff @@## master #8230 +/- ##
============================================
+ Coverage 51.73% 51.79% +0.06% - Complexity 25366 25371 +5 
============================================
Files 1599 1607 +8 Lines 95064 95160 +96 Branches 1376 1378 +2 ============================================
+ Hits 49180 49290 +110 + Misses 45884 45870 -14

Impacted Files	Coverage Δ	Complexity Δ
apps/user_ldap/lib/Group_LDAP.php	61.14% <0%> (-1.78%)	180 <0> (+4)
apps/dav/lib/Files/FileSearchBackend.php	42.61% <0%> (-29.27%)	71% <0%> (+22%)
apps/updatenotification/appinfo/routes.php	11.11% <0%> (-28.89%)	0% <0%> (ø)
lib/private/Files/Cache/HomePropagator.php	77.77% <0%> (-11.12%)	3% <0%> (ø)
lib/private/Settings/Admin/Sharing.php	84% <0%> (-8.86%)	6% <0%> (+1%)
settings/Middleware/SubadminMiddleware.php	87.5% <0%> (-5.36%)	6% <0%> (ø)
lib/private/Http/Client/Client.php	95.08% <0%> (-4.92%)	21% <0%> (+5%)
apps/updatenotification/lib/Settings/Admin.php	73.58% <0%> (-3.92%)	11% <0%> (+3%)
apps/user_ldap/lib/Connection.php	54.74% <0%> (-3.33%)	122% <0%> (+3%)
...pps/encryption/lib/Controller/StatusController.php	74.28% <0%> (-3.22%)	6% <0%> (-1%)
... and 242 more

[MorrisJobke]

@nextcloud/ldap Please have a look at this as well.

[blizzz]

The substring '%gid' will be replaced by the group's DN.

Please don't use %gid as it is misleading. In nextcloud it is used to represent the group id, apart from that the DN is not really an ID. For instance, use %gdn .

Would it be feasable to write some unit tests for it?

[Cybso]

@blizzz I've replaced the string. Is there any tutorial on how to setup a test environment where I can execute the unit tests myself before pushing them into the repository?

[blizzz]

@Cybso does this help? https://docs.nextcloud.com/server/13/developer_manual/core/unit-testing.html

[sudo] ./autotest.sh sqlite $TESTFILE is my to-go approach, too.

[Cybso]

@blizzz Thanks, I will try

[blizzz]

@Cybso seems you did not have a chance yet, did you?

[Cybso]

@blizzz Yes, you're right, I'm very busy at the moment, but I haven't forgot this ticket. Holidays are coming in a few weeks and I think I will then find the time to write this test case.

[ChristophWurst]

@Cybso any updates? This is conflicting with other changes of that file that happened in the meantime.

[Cybso]

I am very sorry, but at the moment I am extremely busy both professionally and privately, so I did not have the time to do that and probably will not find an opportunity to get into the test framework in the foreseeable future.

But since we still have to do the upgrade to Nextcloud 15 within my company I think I will at least be able to solve the merge conflicts this week.

[rullzer]

I'm going to close this.
@blizzz feel free to reopen and rebase