Re: Reverse Sort NS LDAP 4.1x

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

Is it possible to get the server to do a full PDU dump so
we can compare the PDUs send by ldapsearch and Net::LDAP ?

Graham.

On Mon, Sep 11, 2000 at 11:08:19AM -0700, Jeff Mandel wrote:
> Correct summary on the sorts.
> 
> My log from LDAP for successful sort shows
> [11/Sep/2000:09:44:33 -0700] conn=2040 fd=56 slot=56 connection from
> 10.1.8.10 to 10.1.2.5
> [11/Sep/2000:09:44:33 -0700] conn=2040 op=0 SRCH
> base="ou=eugene,ou=computers,ou=devices,o=probes" scope=2
> filter="(&(objectclass=iphost)(uid=*)(objectclass=mpdevice))"
> [11/Sep/2000:09:44:33 -0700] conn=2040 op=0 SORT uid devicefunction status
> (275)
> [11/Sep/2000:09:44:34 -0700] conn=2040 op=0 RESULT err=0 tag=101
> nentries=222 etime=1
> [11/Sep/2000:09:44:34 -0700] conn=2040 op=-1 fd=56 closed - B1
> 
> Log for failed sort is:
> [11/Sep/2000:09:48:16 -0700] conn=2041 fd=56 slot=56 connection from
> 10.1.8.10 to 10.1.2.5
> [11/Sep/2000:09:48:16 -0700] conn=2041 op=0 SRCH
> base="ou=eugene,ou=computers,ou=devices,o=probes" scope=2
> filter="(&(objectclass=iphost)(uid=*)(objectclass=mpdevice))"
> [11/Sep/2000:09:48:16 -0700] conn=2041 op=0 RESULT err=2 tag=101 nentries=0
> etime=0
> [11/Sep/2000:09:48:16 -0700] conn=2041 op=-1 fd=56 closed - B1
> 
> The sort request was somehow lost. No entries returned, nothing was logged
> to the LDAP error log either.
> 
> An error code was not returned to Net::LDAP, ie no response. So using the
> example, I get "Server does not support sorting."
> Should it return an error 2?
> 
> Using the command line ldapsearch from the Netscape LDAP sdk I can get a
> reverse sort.
>  ./ldapsearch -h host -b "ou=eugene,ou=computers,ou=devices,o=probes" -x -S
> -uid uid=* uid cn
> [11/Sep/2000:10:55:06 -0700] conn=2084 fd=56 slot=56 connection from
> 10.1.8.10 to 10.1.2.5
> [11/Sep/2000:10:55:06 -0700] conn=2084 op=0 SRCH
> base="ou=eugene,ou=computers,ou=devices,o=probes" scope=2 filter="(uid=*)"
> [11/Sep/2000:10:55:06 -0700] conn=2084 op=0 SORT -uid (223)
> [11/Sep/2000:10:55:06 -0700] conn=2084 op=0 RESULT err=0 tag=101
> nentries=222 etime=0
> [11/Sep/2000:10:55:06 -0700] conn=2084 op=1 UNBIND
> [11/Sep/2000:10:55:06 -0700] conn=2084 op=1 fd=56 closed - U1
> 
> So perhaps it's in the encoding... Maybe the regex in Sort.pm is dropping a
> piece of the request, including the sort order request instead of handling
> the "-"
> 
> Perhaps in here (from Sort.pm)...
> 
>   unless (defined $self->{value}) {
>     $self->{value} = $SortRequest->encode(
>       order => [
>     map {
>       /^(-)?([^:]+)(?::(.+))?/;
>       {
>         type => $2,
>         (defined $1 ? (reverseOrder => 1)  : ()),
>         (defined $3 ? (orderingRule => $3) : ())
>       }
>     } @{$self->{order} || []}
>       ]
>     ) or $self->{error} = $@;
>   }
> 
> 
> I wish my regex's skills we enough to help out here, but I have to defer to
> the list on this.
> 
> Jeff
> 
> Graham Barr wrote:
> 
> > Mark Wilcox had reported something similar (I had forgot about it)
> >
> > Are you saying
> >
> >   forward sort on a single attribute works
> >   forward sort on a multiple attributes works
> >   reverse sort on a single attribute fails
> >   reverse sort on multipe attributes fails
> >
> > If so then it looks like the encoding of the reverse flag. But
> > I looked at this when Mark reported the problem and the PDUs
> > looked to be encoded OK.
> >
> > So the other question is does Netscape support reverse sorts ?
> >
> > Graham.
> >
> > On Mon, Sep 11, 2000 at 08:47:43AM -0700, Jeff Mandel wrote:
> > > Hello,
> > >
> > > Has anyone successfully made the Netscape LDAP server return a reverse
> > > sort? Regular or multi-key sort using the examples in
> > > LDAP::Control::Sort, and Net::LDAP::Control::SortResult work great, but
> > > passing in a "-attribute" (like "-uid") returns a "Server does not
> > > support sorting."
> > >
> > > I'm using Netscape Directory 4.1
> > >
> > > Thanks,
> > >
> > > Jeff
> > >
>