Re: (ITS#5074) slapo-pcache's proxyattrset does not recognize "1.1" to describe an empty attribute set

Thursday, 9 August 2007

On Aug 6, 2007, at 6:43 AM, Pierangelo Masarati wrote:
...
 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 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 attribute set is no longer valid, to avoid confusion about the  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?

...
 Please test. 
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.

-Mike

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