Re: NEW: chasing referrals

[Graham B. <gb...@po...>]

It would seem the server thinks you are a version 2 client. Error code 9 is

LDAP_PARTIAL_RESULTS

Returned to version 2 clients when a referral is returned. The response
will contain a list of URL's for other servers.

It is then returning the referrals in the error message.

Can you turn on debug by adding   debug => 15   into the arguments
of the constructor

Graham.


On Fri, Apr 20, 2001 at 01:23:43PM +0200, Roland Stigge wrote:
> Hi,
> 
> Chris Ridd wrote:
> 
> > > (We are using Net::LDAP 0.22 and OpenLDAP 1.2.11)
> > > It seems that my configuration doesn't return any referrals. I have
> > > configured two servers, one holding o=epigenomics, the other on
> > > c=us,o=epigenomics. Via PHP and ldapsearch tools, the inserted referrals
> > > even seem to transparently redirect the client to the second server when
> > > accessing/searching the c=us,epigenomics substructure. But with my
> > > Net::LDAP code:
> 
> > You are binding using LDAPv2. LDAPv2 did not have referrals.
> > 
> > Some vendors have 'patched in' some support for referrals in LDAPv2, but
> > this is completely non-standard and not supported by Net::LDAP.
> > 
> > Try binding with LDAPv3 instead and see what you get. Hint: pass version =>
> > 3 in the bind call.
> 
> I already tried that:
> -----
> $ldap = Net::LDAP->new("wilson");
> $ldap->bind(version => 3);
> print "LDAP Version: ",$ldap->version,"\n";
> $mesg = $ldap->search( base => "o=epigenomics",
>                        filter => '(cn=*)',
>                        deref => 3,
>                      );
> 
> @referrals = $mesg->referrals;
> foreach $ref (@referrals) {
>   print "Referral: ",$ref,"\n";
> }
> 
> print "Return code: ",$mesg->code,"\n";
> print "Error message: \"",$mesg->error,"\"\n";
> 
> $n = $mesg->all_entries;
> print "Number of Entries: ".$n."\n";
> 
> foreach $entry ($mesg->entries) {
>   print "dn: ",$entry->dn,"\n";
> }
> ----- 
> 
> but got the same result:
> -----
> LDAP Version: 3
> Return code: 9
> Error message: "Referral:
> ldap://deledda/c=gdr,o=epigenomics
> ldap://deledda/c=us,o=epigenomics"
> Number of Entries: 2
> dn: cn=admin,o=epigenomics
> dn: cn=updated,o=epigenomics
> -----
> 
> Even with LDAPv3, I get the same result. "Real" referrals seem to be
> suppressed (in the array). Instead, the error message (!) contains the
> referral. As you see, I added a referral. So even multiple referrals are
> displayed in the error message.
> 
> Is this the desired behavior of Net::LDAP? I don't like the idea to
> parse error strings instead of being able to use the native referrals in
> $mesg->referrals.
> 
> Thanks in advance.
> 
> bye,
> 
> -- 
> Roland Stigge
>  
> Epigenomics AG                              Kastanienallee 24
> www.epigenomics.com                              10435 Berlin
>