--- mod_shared_roster_ldap.erl.orig	2008-05-13 20:29:23 +0800
+++ mod_shared_roster_ldap.erl	2008-08-05 15:52:03 +0800
@@ -371,7 +371,7 @@
 							case Attrs of
 								[{UIDAttr, UsersList}] ->
 									lists:foldl(fun(User, Acc) ->
-										case catch get_user_part(User, UAF) of
+										case catch get_user_part(stringprep:tolower(User), UAF) of
 											{ok, U} ->
 												case ejabberd_auth:is_user_exists(U, Host) of
 													true -> [{U, Host} | Acc];
@@ -490,7 +490,8 @@
 	end,
 
 	SubFilter = "(&("++UIDAttr++"="++UIDAttrFormat++")("++GroupAttr++"=%g))",
-	UserSubFilter = eldap_filter:do_sub(SubFilter, [{"%g", "*"}]),
+	SubFilter1 = "(&(uid="++UIDAttrFormat++")("++GroupAttr++"=%g))",
+	UserSubFilter = eldap_filter:do_sub(SubFilter1, [{"%g", "*"}]),
 	GroupSubFilter = eldap_filter:do_sub(SubFilter, [{"%u", "*"}]),
 	Filter = case ConfigFilter of
 		undefined -> SubFilter;