5:32 a.m.
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greetings,
please advise
how can I run external script on event (LDAP operation)?
for example: I am generating config files for users from LDAP data with perl script
I want to re-generate config files each time LDAP operation (modify, add, delete)
performed
how to do that and what is the best way to do that?
- --
Zeus V. Panchenko jid:zeus@im.ibs.dn.ua
IT Dpt., I.B.S. LLC GMT+2 (EET)
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5:49 a.m.
On 07/30/2018 02:32 PM, Zeus Panchenko wrote:
how can I run external script on event (LDAP operation)?
for example: I am generating config files for users from LDAP data
with perl script
Basically you have two options:
1. run something within slapd (back-perl or back-sock)
2. implement a syncrepl consumer
Note that with 1. the actions *block* a slapd thread.
Thus you have to be super-cautious with correct error handling.
In any case you should implement a fall-back sync which corrects all
inconsistencies if something with processing the events went wrong.
Ciao, Michael.
5:12 a.m.
thanks to everybody for soon reply
Michael Ströder <michael(a)stroeder.com> wrote:
On 07/30/2018 02:32 PM, Zeus Panchenko wrote:
Basically you have two options:
1. run something within slapd (back-perl or back-sock)
I'm still missing something ... what is/are the condition/s to see a
candidate object to sync?
I'm trying a sample from doc to Net::LDAP::Control::SyncRequest as well
as sample from SATOH Fumiyasu code
I modify some attribute and after that run the code:
---[ quotation start ]-------------------------------------------
...
my $req = $ldap_crud->control_sync_req; # which is wrapper for
Net::LDAP::Control::SyncRequest->new( mode => LDAP_SYNC_REFRESH_AND_PERSIST, );
log_debug { np( $req ) };
my $mesg = $ldap_crud->search({ base =>
$ldap_crud->{cfg}->{base}->{acc_root},
filter => "(objectClass=*)",
control => [ $req ],
callback => sub { # log_debug {np(@_)};
my $msg = shift;;
my $obj = shift;
my @controls = $msg->control;
if ( defined $obj && $obj->isa('Net::LDAP::Entry') ) {
log_debug { $obj->dn . ' ; ' . np(@controls)};
my $syncstate = undef;
for my $control (@controls) {
if ( $control->isa('Net::LDAP::Control::SyncState') ) {
$syncstate = $control;
log_debug {np($syncstate)};
last;
}
}
}
},
sizelimit => 0,
attrs => [ '*' ] });
...
---[ quotation end ]-------------------------------------------
but Net::LDAP::Message object returned by search, contains method
`controls' set to undef
---[ quotation start ]-------------------------------------------
2018.07.31 13:38:38 [DEBUG]: L00830 @ UMI::Controller::Root::test: Controller/Root.pm:
Net::LDAP::Search {
Parents Net::LDAP::Message
public methods (12) : all_entries, as_struct, count, decode, entries, entry,
first_entry, next_entry, pop_entry, references, shift_entry, sorted
private methods (0)
internals: {
callback sub { ... },
controls undef,
ctrl_hash undef,
entries [
[0] Net::LDAP::Entry,
...
[388] Net::LDAP::Entry
],
errorMessage "",
matchedDN "",
mesgid 70,
parent Net::LDAP,
raw undef,
resultCode 0
}
}
---[ quotation end ]-------------------------------------------
while Net::LDAP::Control::SyncRequest->new() returns valid object
---[ quotation start ]-------------------------------------------
2018.07.31 14:01:16 [DEBUG]: L00807 @ UMI::Controller::Root::test: Controller/Root.pm:
Net::LDAP::Control::SyncRequest {
Parents Net::LDAP::Control
public methods (5) : cookie, init, mode, reloadHint, value
private methods (0)
internals: {
asn {
cookie undef,
mode 3,
reloadHint 0
},
mode 3,
type "1.3.6.1.4.1.4203.1.9.1.1"
}
}
---[ quotation end ]-------------------------------------------
though after been fed to search, control "disappears" ...
where am I wrong?
--
Zeus V. Panchenko jid:zeus@im.ibs.dn.ua
IT Dpt., I.B.S. LLC GMT+2 (EET)
5:19 a.m.
On 07/31/2018 02:12 PM, Zeus Panchenko wrote:
Michael Ströder <michael(a)stroeder.com> wrote:
> On 07/30/2018 02:32 PM, Zeus Panchenko wrote:
> Basically you have two options:
> 1. run something within slapd (back-perl or back-sock)
I'm still missing something ... what is/are the condition/s to see a
candidate object to sync?
(It seems you chose option 2. and not 1. as mentioned above.)
The syncrepl protocol is specified in
https://tools.ietf.org/html/rfc4533
Ciao, Michael.
6:01 a.m.
Just FYI.
On Mon, 30 Jul 2018 21:32:57 +0900,
Zeus Panchenko wrote:
how can I run external script on event (LDAP operation)?
I wrote an experimental Perl script a few years ago.
https://github.com/fumiyas/ldap2any
This uses LDAP syncrepl consumer (Net::LDAP::Control::SyncRequest)
to monitor LDAP DIT changes in an OpenLDAP server.
for example: I am generating config files for users from LDAP data
with perl script
I want to re-generate config files each time LDAP operation (modify, add, delete)
performed
how to do that and what is the best way to do that?
--
-- Name: SATOH Fumiyasu @ OSS Technology Corp. (fumiyas @ osstech co jp)
-- Business Home: https://www.OSSTech.co.jp/
-- GitHub Home: https://GitHub.com/fumiyas/
-- PGP Fingerprint: BBE1 A1C9 525A 292E 6729 CDEC ADC2 9DCA 5E1C CBCA
9:06 a.m.
Our database is fairly small, so we use active polling of a subtree.
Our use-case is syncing user account subtree to Google (GCDS, formerly
GADS). So we have a script that searches one and only one record with
modifyTimestamp newer than the marker. If anything found, it runs the
sync utility.
It's under GPLv3 here: https://github.com/devgateway/ldapwatch
Usage:
/usr/local/bin/ldapwatch ldaps://ldap.example.org
ou=people,dc=example,dc=org '/opt/google/sync/sync-cmd --foobar'
On 07/30/2018 08:32 AM, Zeus Panchenko wrote:
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greetings,
please advise
how can I run external script on event (LDAP operation)?
for example: I am generating config files for users from LDAP data with perl script
I want to re-generate config files each time LDAP operation (modify, add, delete)
performed
how to do that and what is the best way to do that?
- --
Zeus V. Panchenko jid:zeus@im.ibs.dn.ua
IT Dpt., I.B.S. LLC GMT+2 (EET)
--
Best regards,
Styopa Semenukha,
Senior IT Analyst at Development Gateway.
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openldap-technical@openldap.org
5 comments
4 participants
participants (4)
-
Michael Ströder -
SATOH Fumiyasu -
Styopa Semenukha -
Zeus Panchenko