api/users: catch existing user also on case insensitive realm

[pve-access-control.git] / PVE / AccessControl.pm

diff --git a/PVE/AccessControl.pm b/PVE/AccessControl.pm
index d3bc6ea78120390f02438565c0530985bbbf4c53..8b5be1e03c570eab4c381c75ccac3111ba19ffdd 100644 (file)
--- a/PVE/AccessControl.pm
+++ b/PVE/AccessControl.pm
@@ -892,7 +892,7 @@ sub add_role_privs {
 }
 
 sub lookup_username {
-    my ($username) = @_;
+    my ($username, $noerr) = @_;
 
     $username =~ m!^(${PVE::Auth::Plugin::user_regex})\@(${PVE::Auth::Plugin::realm_regex})$!;
 
@@ -905,7 +905,7 @@ sub lookup_username {
        my @matches = grep { lc $username eq lc $_ } (keys %{$usercfg->{users}});
 
        die "ambiguous case insensitive match of username '$username', cannot safely grant access!\n"
-           if scalar @matches > 1;
+           if scalar @matches > 1 && !$noerr;
 
        return $matches[0]
     }