On 20 Jan 2015, at 19:23, Andrew Findlay andrew.findlay@skills-1st.co.uk wrote:
On Fri, Jan 16, 2015 at 03:34:11PM +0100, Dirk-Willem van Gulik wrote:
W’re comparing various LDAP server setups; and we are wondering what the ‘correct’ search result is for a search which is done such as
'(|(|(|(givenname=fred*)(sn=fred*)(mail=fred*)(cn=fred*)You have a mismatch of parentheses there. The filter should be:
(|(givenname=fred*)(sn=fred*)(mail=fred*)(cn=fred*))[ Note that one '|' can be followed by a list of one or more filters - it is not a dyadic operator - see RFC4515 section 3 ]
Ok - glad to hear this; I was rather confused (above string was taken out of a test dump of a VoIP system and also seen very similar diadics on quite a few deskop/mac products). So the string itself is bogus to start with.
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In principle the entry matches the filter so it should be returned.
However, the '|' (OR) operator poses a significant problem for a server, particularly where there are a lot of entries and one or more of the attributes
...
And I cannot find the exact spot in the RFC where the ‘correct’ behaviour is mentioned.
RFC4511, 4.5.1.7. SearchRequest.filter
As we notice that some servers will return this given above query; and some do not.
It would be interesting to have more detail on exactly what you did and what results you found.
Thanks - we’ll dive further and will summarise if something sensible comes out of it - but it appears that, to start with, various VoIP phones and desktop products, generate an OR query which is already a bit dubious to start with.
Dw.