Accept des valeurs vide pour le shell et le répertoire de chroot

root/etc/e-smith/web/functions/userinfo

@@ -135,7 +135,7 @@ __DATA__
             <label>URL</label>
         </field>
         <field type="text" size="30" id="Shell"
-            value="get_ldap_value('Shell')" validation="exec_exists">
+            value="get_ldap_value('Shell')" validation="exec_exists_or_empty">
             <label>SHELL</label>
         </field>
         <field type="text" size="30" id="DesktopShell"
@@ -143,7 +143,7 @@ __DATA__
             <label>DESKTOP_SHELL</label>
         </field>
         <field type="text" size="30" id="ChrootDir"
-            value="get_ldap_value('ChrootDir')" validation="dir_exists">
+            value="get_ldap_value('ChrootDir')" validation="dir_exists_or_empty">
             <label>CHROOT_DIR</label>
         </field>
         <subroutine src="print_save_button()" />

root/usr/lib/perl5/site_perl/esmith/FormMagick/Panel/userinfo.pm

@@ -235,20 +235,20 @@ sub url_or_empty {
     return $ret;
 }
 
-sub dir_exists {
+sub dir_exists_or_empty {
     my ($self, $field) = @_;
     my $ret = $self->localise('DIR_DOES_NOT_EXIST');
 
-    $ret = 'OK' if (-d "$field");
+    $ret = 'OK' if ((-d "$field") || ($field eq ''));
     return $ret;
 }
 
-sub exec_exists {
+sub exec_exists_or_empty {
 
     my ($self, $field) = @_;
     my $ret = $self->localise('IS_NOT_AN_EXECUTABLE');
 
-    $ret = 'OK' if (-x "$field");
+    $ret = 'OK' if ((-x "$field") || ($field eq ''));
     return $ret;
 }