Re: Net::LDAP Filter question

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

What versions of Net::LDAP and Net::LDAP::Filter do you have ? Whitespace
should not matter

Graham.

On Wed, Aug 14, 2002 at 06:23:55PM -0500, Vanole, Mike wrote:
> Thank you for your input Chris. 
> 
> I did look at the RFC first but it couldn't help me with this. The problem
> was so simple I can't believe there was even a problem. 
> 
> This filter fails:
> $filter = "(&(whenCreated >= 20020812000000.0Z) (whenCreated <=
> 20020812235959.0Z))";
> 
> and this filter succeeds:
> $filter = "(&(whenCreated>=20020812000000.0Z)
> (whenCreated<=20020812235959.0Z))";
> 
> The only difference is the space character before and after the ordering
> matches. I don't know if this is by design or specific to my environment,
> but if it is a requirement maybe the next release of Net::LDAP could strip
> this stuff out where required.
> 
> Thanks again!
> 
> -----Original Message-----
> From: Chris Ridd [mailto:chr...@me...]
> Sent: Wednesday, August 14, 2002 02:38
> To: Vanole, Mike; 'per...@li...'
> Subject: Re: Net::LDAP Filter question
> 
> 
> On 13/8/02 7:08 pm, Vanole, Mike <mik...@at...> wrote:
> 
> > Thanks for the path to go down.
> > 
> > My ldap admin says the fields are not text so wildcards won't work. He
> 
> Correct. The syntax of your attributes seems to be GeneralizedTime;
> attributes using this syntax typically only allow equality match (=) and
> ordering matches (>= and <=). No substring matching rules are usually
> defined (though you could check your server) and hence no "wildcards" are
> allowed in searches.
> 
> > suggested trying this without the equals symbol, but it also failed (a bit
> > differently):
> > $filter = "(&(whenCreated > 20020812000000.0Z) (whenCreated <
> > 20020812235959.0Z))";
> > 
> > Bad filter at get_ldap.pl line 63.
> > 
> > This also fails with "Bad filter":
> > my $filter = "(whencreated > 20020812000000.0Z)";
> 
> Also correct; LDAP filters support <= and >=, not < and >. See RFC 2254.
> 
> > I can do this but I still don't achieve my objective of getting under the
> > server imposed sizelimit:
> > 
> > $whenCreated = $entry->get_value( whenCreated, asref => 0 );
> > 
> > if ($whenCreated =~ /^20020812/) {
> > ..do something perlish...
> > 
> > Working with Net::LDAP and seeking advice from my ColdFusion counterparts
> I
> > am finding they are only a little helpful because the differences in
> options
> > available between ADO, VB, and ColdFusion (basically NT) and Net::LDAP are
> > many. For instance I am bumping into a server imposed sizelimit with
> > Net::LDAP that the NT guys don't have. And apparently they don't have the
> > filter issues I'm having. Is there a *differences* document that anyone
> can
> > point me to? I'm die-hard-perl-on-UNIX so moving to NT is not an option.
> 
> There's no reason you couldn't use the same sort of filter that they're
> using. Do the server logs contain their search filters? If not, consider
> snooping the LDAP network traffic between ColdFusion and the directory.
> Programs like Ethereal <http://www.ethereal.com/> will do this and decode
> lots of protocols (including LDAP :-) automatically.
> 
> Cheers,
> 
> Chris
> 
> 
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