[squid-users] Umlauts in usernames (repost)

Hi,
I am reposting this because I am still stuck and did not find a
workaround so far. The basic question is how does squid handle
non-english characters in usernames it gets using ntlm when it passes
them on to external helpers and redirectors. From previous posts on this
list I already know that it converts them to url-encoded characters when
it writes acces.log. But to even puzzle me more in the example posted
below the character =F6 is written as %99 in access.log, the charts I
found so far on the net assume that =F6 should be converted to %f6. Am I
using a wrong chart here?=20
But since logfiles are treated differently as external helpers and
redirectors how are these characters passed on to those instances and is
there a difference between the two?
Sorry about posting this again, but I could really use some help here.
Thanks=20
Jan

This is what I posted on 09/25:
*****
Hi,
I am running squid-2.5STABLE4 with the patch regarding spaces in login
names in an actice directory environment. Squid gets usernames using
NTLM and checks this using external helper ip_user_check. This works
fine, unfortunatly there are some usernames with umlauts in them and
those checks fail. When looking in access.log and cache.log I see
different username entries.
As an example we used a user with the name =22n=F6=22:
access.log:
1064478528.646 14 192.168.1.11 TCP_DENIED/403 1716 GET
http://www.microsoft.com/isapi/redir.dll? domain=5Cn%99 NONE/-
text/html

cache.log:
2003/09/25 10:19:33=7C aclMatchExternal: groupcheck user not
authenticated (-1)
2003/09/25 10:19:33=7C aclMatchExternal: groupcheck(=22192.168.1.11
domain=5C=5Cn=7EY=22) =3D lookup needed
2003/09/25 10:19:33=7C externalAclLookup: lookup in =27groupcheck=27 for
=27192.168.1.11 domain=5C=5Cn=7EY=27
2003/09/25 10:19:33=7C external_acl_cache_add: Adding =27192.168.1.11
domain=5C=5Cn=7EY=27 =3D -1
2003/09/25 10:19:33=7C externalAclHandleReply: reply=3D=22ERR=22
2003/09/25 10:19:33=7C external_acl_cache_add: Adding =27192.168.1.11
domain=5C=5Cn=7EY=27 =3D 0
2003/09/25 10:19:33=7C aclMatchExternal: groupcheck =3D 0

The file ip_user_check uses contains a line
192.168.1.11 domain=5C=5Cn=F6
and it is called with this line
external_acl_type groupcheck %SRC %LOGIN /usr/sbin/ip_user_check -f
/etc/squid/proxyuser.conf

So can squid handle usernames with umlauts at all and if so, how do
those names get encoded (or is this done by the browser?). Is there a
difference between the encoding regarding helpers and redirectors?
I would really appreciate any help or suggestion.

Jan=20