On Aug 6, 2007, at 6:43 AM, Pierangelo Masarati wrote:

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I believe there's something odd in pcache's current behavior. In fact, right now "proxyattrset 0" is already a valid directive, but it implies "proxyattrset 0 *", which means all attributes. Unfortunately, this seems to only work if no attribute is requested, while it fails if a "*" is explicitly requested.

Ah, I was not aware of this behaviour!

I've noticed it from the sources, I don't think it was noted anywhere.

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I've modified the propxycache code in HEAD so that a "1.1" can only explicitly appear in a list if it's the only string. An empty attribute set is no longer valid, to avoid confusion about the meaning of non-explicit attribute sets. A "*" or a "+" can explicitly appear in a proxyattrset statement, resulting in the expected behavior. Use both to indicate that all attributes are in the set.

Let me confirm, that I should specify "proxyattrset 0 1.1" to match an empty attribute list, and only an empty attribute list. Will a '*' than match emptiness as well, or does it only match where there is some attribute specified by the client?

No: you need to specify

proxyattrset <#idx> "*"

in order to have either nothing or "*" return all attributes. In short, an empty attribute set and "*" are now recognized as equivalent.

You need to specify

proxyattrset <#idx> "1.1"

in order to have searches requesting "1.1", namely no attributes, be cached.

I will work on this as soon as I am able to, although it seems this won't be for a couple of weeks. I will be in touch. Thanks again for your work and for your very timely response.

Right now, I'm not planning to backport this fix to re23 because it seems to be an enhancement rather than a bugfix, and 2.4 __should be__ just 'round the corner.

p.

Ing. Pierangelo Masarati OpenLDAP Core Team

SysNet s.r.l. via Dossi, 8 - 27100 Pavia - ITALIA http://www.sys-net.it --------------------------------------- Office: +39 02 23998309 Mobile: +39 333 4963172 Email: pierangelo.masarati@sys-net.it ---------------------------------------