From be52730af6a65a3cb72a1a2513ba9a686286e689 Mon Sep 17 00:00:00 2001
From: garvinhicking <garvinhicking>
Date: Wed, 15 Feb 2006 14:45:56 +0000
Subject: [PATCH] Check for empty username

---
 include/admin/personal.inc.php            | 2 ++
 lang/UTF-8/serendipity_lang_bg.inc.php    | 1 +
 lang/UTF-8/serendipity_lang_cn.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_cs.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_cz.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_da.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_de.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_en.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_es.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_fa.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_fi.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_fr.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_hu.inc.php    | 1 +
 lang/UTF-8/serendipity_lang_is.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_it.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_ja.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_ko.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_nl.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_no.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_pt.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_pt_PT.inc.php | 1 +
 lang/UTF-8/serendipity_lang_ro.inc.php    | 1 +
 lang/UTF-8/serendipity_lang_ru.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_se.inc.php    | 1 +
 lang/UTF-8/serendipity_lang_ta.inc.php    | 1 +
 lang/UTF-8/serendipity_lang_tn.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_tw.inc.php    | 3 ++-
 lang/UTF-8/serendipity_lang_zh.inc.php    | 3 ++-
 lang/addlang.txt                          | 3 +--
 lang/plugin_lang.php                      | 1 +
 lang/serendipity_lang_bg.inc.php          | 1 +
 lang/serendipity_lang_cn.inc.php          | 1 +
 lang/serendipity_lang_cs.inc.php          | 1 +
 lang/serendipity_lang_cz.inc.php          | 1 +
 lang/serendipity_lang_da.inc.php          | 1 +
 lang/serendipity_lang_de.inc.php          | 1 +
 lang/serendipity_lang_en.inc.php          | 1 +
 lang/serendipity_lang_es.inc.php          | 1 +
 lang/serendipity_lang_fa.inc.php          | 1 +
 lang/serendipity_lang_fi.inc.php          | 1 +
 lang/serendipity_lang_fr.inc.php          | 1 +
 lang/serendipity_lang_hu.inc.php          | 1 +
 lang/serendipity_lang_is.inc.php          | 1 +
 lang/serendipity_lang_it.inc.php          | 1 +
 lang/serendipity_lang_ja.inc.php          | 1 +
 lang/serendipity_lang_ko.inc.php          | 1 +
 lang/serendipity_lang_nl.inc.php          | 1 +
 lang/serendipity_lang_no.inc.php          | 1 +
 lang/serendipity_lang_pt.inc.php          | 1 +
 lang/serendipity_lang_pt_PT.inc.php       | 1 +
 lang/serendipity_lang_ro.inc.php          | 1 +
 lang/serendipity_lang_ru.inc.php          | 1 +
 lang/serendipity_lang_se.inc.php          | 1 +
 lang/serendipity_lang_ta.inc.php          | 1 +
 lang/serendipity_lang_tn.inc.php          | 1 +
 lang/serendipity_lang_tw.inc.php          | 1 +
 lang/serendipity_lang_zh.inc.php          | 1 +
 57 files changed, 79 insertions(+), 23 deletions(-)

diff --git a/include/admin/personal.inc.php b/include/admin/personal.inc.php
index 9274641..ce562ea 100644
--- a/include/admin/personal.inc.php
+++ b/include/admin/personal.inc.php
@@ -17,6 +17,8 @@ if ($serendipity['GET']['adminAction'] == 'save' && serendipity_checkFormToken()
     if ( (!serendipity_checkPermission('adminUsersEditUserlevel') || !serendipity_checkPermission('adminUsersMaintainOthers') )
           && (int)$_POST['userlevel'] > $serendipity['serendipityUserlevel']) {
         echo '<div class="serendipityAdminMsgError">' . CREATE_NOT_AUTHORIZED_USERLEVEL . '</div>';
+    } elseif (empty($_POST['username'])) {
+        echo '<div class="serendipityAdminMsgError">' . USERCONF_CHECK_USERNAME_ERROR . '</div>';
     } elseif (!empty($_POST['password']) && $_POST['check_password'] != $_SESSION['serendipityPassword'] && md5($_POST['check_password']) != $_SESSION['serendipityPassword']) {
         echo '<div class="serendipityAdminMsgError">' . USERCONF_CHECK_PASSWORD_ERROR . '</div>';
     } else {
diff --git a/lang/UTF-8/serendipity_lang_bg.inc.php b/lang/UTF-8/serendipity_lang_bg.inc.php
index d3034b4..f5abb76 100644
--- a/lang/UTF-8/serendipity_lang_bg.inc.php
+++ b/lang/UTF-8/serendipity_lang_bg.inc.php
@@ -797,3 +797,4 @@
 @define('INSTALL_RSSFETCHLIMIT_DESC', 'Брой на статиите, които да бъдат извеждани в RSS емисии.');
 @define('INSTAL_DB_UTF8', 'Разрешаване на прекодирането на символите при работа с MySQL база данни');
 @define('INSTAL_DB_UTF8_DESC', 'Специално за MySQL. Отговор \'Да\' изпълнява \'SET NAMES\', за да определи кодирането на символите в базата данни. Включете или изключете тази опция, ако виждате нечетими символи в статиите.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_cn.inc.php b/lang/UTF-8/serendipity_lang_cn.inc.php
index abfcae9..e464308 100644
--- a/lang/UTF-8/serendipity_lang_cn.inc.php
+++ b/lang/UTF-8/serendipity_lang_cn.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_cn.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_cn.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 /* vim: set sts=4 ts=4 expandtab : */
@@ -810,3 +810,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_cs.inc.php b/lang/UTF-8/serendipity_lang_cs.inc.php
index 2268da1..6437e9f 100644
--- a/lang/UTF-8/serendipity_lang_cs.inc.php
+++ b/lang/UTF-8/serendipity_lang_cs.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_cs.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_cs.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translation (c) 2005 Josef Klimosz <ok2wo@centrum.cz>
@@ -812,3 +812,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_cz.inc.php b/lang/UTF-8/serendipity_lang_cz.inc.php
index 3b067dc..247a067 100644
--- a/lang/UTF-8/serendipity_lang_cz.inc.php
+++ b/lang/UTF-8/serendipity_lang_cz.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_cz.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_cz.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translation (c) 2004 Josef Klimosz <ok2wo@centrum.cz>
@@ -812,3 +812,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_da.inc.php b/lang/UTF-8/serendipity_lang_da.inc.php
index f140931..09e6983 100644
--- a/lang/UTF-8/serendipity_lang_da.inc.php
+++ b/lang/UTF-8/serendipity_lang_da.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_da.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_da.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translation (c) by Tom Sommer, <ts@dreamcoder.dk>
@@ -811,3 +811,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_de.inc.php b/lang/UTF-8/serendipity_lang_de.inc.php
index 7e73e96..2e30810 100644
--- a/lang/UTF-8/serendipity_lang_de.inc.php
+++ b/lang/UTF-8/serendipity_lang_de.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_de.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_de.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translation (c) Jannis Hermanns, Garvin Hicking and others
@@ -810,3 +810,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_en.inc.php b/lang/UTF-8/serendipity_lang_en.inc.php
index 3624cff..3f3b869 100644
--- a/lang/UTF-8/serendipity_lang_en.inc.php
+++ b/lang/UTF-8/serendipity_lang_en.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_en.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_en.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 /* vim: set sts=4 ts=4 expandtab : */
@@ -809,3 +809,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_es.inc.php b/lang/UTF-8/serendipity_lang_es.inc.php
index 874f78b..a09f913 100644
--- a/lang/UTF-8/serendipity_lang_es.inc.php
+++ b/lang/UTF-8/serendipity_lang_es.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_es.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_es.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translation (c) by Luis Cervantes <LuisCervantes@ono.com>,
@@ -827,3 +827,4 @@ Melvin TODO [20060128]: What spanish word do we use for "referrers" ??
 @define('INSTAL_DB_UTF8_DESC', 'Envía una consulta MySQL "SET NAMES" para definir el juego de caracteres requerido por la base de datos. Actívalo o desactívalo sí ves caracteres extraños en tu blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_fa.inc.php b/lang/UTF-8/serendipity_lang_fa.inc.php
index 0bc6396..924f46b 100644
--- a/lang/UTF-8/serendipity_lang_fa.inc.php
+++ b/lang/UTF-8/serendipity_lang_fa.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_fa.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_fa.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved. See LICENSE file for licensing details
 # this translation, translated by Omid Mottaghi <http://oxygenws.com>
@@ -811,3 +811,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_fi.inc.php b/lang/UTF-8/serendipity_lang_fi.inc.php
index 622c697..d8b9d06 100644
--- a/lang/UTF-8/serendipity_lang_fi.inc.php
+++ b/lang/UTF-8/serendipity_lang_fi.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_fi.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_fi.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translation by Mauri Sahlberg <mos@iki.fi>
@@ -809,3 +809,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_fr.inc.php b/lang/UTF-8/serendipity_lang_fr.inc.php
index 3195f9f..18a550e 100644
--- a/lang/UTF-8/serendipity_lang_fr.inc.php
+++ b/lang/UTF-8/serendipity_lang_fr.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_fr.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_fr.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translation by Sebastian Mordziol <argh@php-tools.net>
@@ -816,3 +816,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_hu.inc.php b/lang/UTF-8/serendipity_lang_hu.inc.php
index e659000..084cec9 100644
--- a/lang/UTF-8/serendipity_lang_hu.inc.php
+++ b/lang/UTF-8/serendipity_lang_hu.inc.php
@@ -810,3 +810,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_is.inc.php b/lang/UTF-8/serendipity_lang_is.inc.php
index 0265b15..6f8df5c 100644
--- a/lang/UTF-8/serendipity_lang_is.inc.php
+++ b/lang/UTF-8/serendipity_lang_is.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_is.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_is.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translation by Örn Arnarson <orn@arnarson.net>
@@ -810,3 +810,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_it.inc.php b/lang/UTF-8/serendipity_lang_it.inc.php
index 1d75bae..f074c78 100644
--- a/lang/UTF-8/serendipity_lang_it.inc.php
+++ b/lang/UTF-8/serendipity_lang_it.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_it.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_it.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translation (c) by Alessandro Pellizzari <alex@amiran.it>
@@ -811,3 +811,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_ja.inc.php b/lang/UTF-8/serendipity_lang_ja.inc.php
index 2ed4de5..bccb509 100644
--- a/lang/UTF-8/serendipity_lang_ja.inc.php
+++ b/lang/UTF-8/serendipity_lang_ja.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_ja.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_ja.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translation (c) Tadashi Jokagi <elf2000@users.sourceforge.net>, 2004-2005.
@@ -813,3 +813,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_ko.inc.php b/lang/UTF-8/serendipity_lang_ko.inc.php
index da77332..b8fa3ae 100644
--- a/lang/UTF-8/serendipity_lang_ko.inc.php
+++ b/lang/UTF-8/serendipity_lang_ko.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_ko.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_ko.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translated by: Wesley Hwang-Chung <wesley96@gmail.com>
@@ -812,3 +812,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_nl.inc.php b/lang/UTF-8/serendipity_lang_nl.inc.php
index 15e81ed..f6441f6 100644
--- a/lang/UTF-8/serendipity_lang_nl.inc.php
+++ b/lang/UTF-8/serendipity_lang_nl.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_nl.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_nl.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translation (c) by Christiaan Heerze <webmaster@heimp.nl>
@@ -812,3 +812,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_no.inc.php b/lang/UTF-8/serendipity_lang_no.inc.php
index 8c9b299..769e48c 100644
--- a/lang/UTF-8/serendipity_lang_no.inc.php
+++ b/lang/UTF-8/serendipity_lang_no.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_no.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_no.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translation (c) by Jo Christian Oterhals <oterhals@gmail.com>
@@ -812,3 +812,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_pt.inc.php b/lang/UTF-8/serendipity_lang_pt.inc.php
index 67eb376..fc2412b 100644
--- a/lang/UTF-8/serendipity_lang_pt.inc.php
+++ b/lang/UTF-8/serendipity_lang_pt.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_pt.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_pt.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translation (c) by Agner Olson <agner@agner.net>
@@ -814,3 +814,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_pt_PT.inc.php b/lang/UTF-8/serendipity_lang_pt_PT.inc.php
index 4d0cdf0..ed51dfe 100644
--- a/lang/UTF-8/serendipity_lang_pt_PT.inc.php
+++ b/lang/UTF-8/serendipity_lang_pt_PT.inc.php
@@ -817,3 +817,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_ro.inc.php b/lang/UTF-8/serendipity_lang_ro.inc.php
index 2945f47..89e4595 100644
--- a/lang/UTF-8/serendipity_lang_ro.inc.php
+++ b/lang/UTF-8/serendipity_lang_ro.inc.php
@@ -810,3 +810,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_ru.inc.php b/lang/UTF-8/serendipity_lang_ru.inc.php
index 02f5507..db595ed 100644
--- a/lang/UTF-8/serendipity_lang_ru.inc.php
+++ b/lang/UTF-8/serendipity_lang_ru.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_ru.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_ru.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translation by Nightly <nightly@reys.net>
@@ -813,3 +813,4 @@ $i18n_filename_to   = array('_', 'a', 'A', 'b', 'B', 'v', 'V', 'g', 'G', 'd', 'D
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_se.inc.php b/lang/UTF-8/serendipity_lang_se.inc.php
index 6c6126d..6980f75 100644
--- a/lang/UTF-8/serendipity_lang_se.inc.php
+++ b/lang/UTF-8/serendipity_lang_se.inc.php
@@ -809,3 +809,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_ta.inc.php b/lang/UTF-8/serendipity_lang_ta.inc.php
index 610e74b..cd00712 100644
--- a/lang/UTF-8/serendipity_lang_ta.inc.php
+++ b/lang/UTF-8/serendipity_lang_ta.inc.php
@@ -809,3 +809,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_tn.inc.php b/lang/UTF-8/serendipity_lang_tn.inc.php
index 5651c51..aa02eda 100644
--- a/lang/UTF-8/serendipity_lang_tn.inc.php
+++ b/lang/UTF-8/serendipity_lang_tn.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_tn.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_tn.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translated by CapriSkye <admin@capriskye.com>
@@ -812,3 +812,4 @@ $i18n_unknown = 'tw';
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_tw.inc.php b/lang/UTF-8/serendipity_lang_tw.inc.php
index 9950167..e256437 100644
--- a/lang/UTF-8/serendipity_lang_tw.inc.php
+++ b/lang/UTF-8/serendipity_lang_tw.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_tw.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_tw.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 # Translated by CapriSkye <admin@capriskye.com>
@@ -812,3 +812,4 @@ $i18n_unknown = 'tw';
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/UTF-8/serendipity_lang_zh.inc.php b/lang/UTF-8/serendipity_lang_zh.inc.php
index a1ebeac..4888504 100644
--- a/lang/UTF-8/serendipity_lang_zh.inc.php
+++ b/lang/UTF-8/serendipity_lang_zh.inc.php
@@ -1,4 +1,4 @@
-<?php # $Id: serendipity_lang_zh.inc.php 938 2006-02-13 03:11:43Z slothman $
+<?php # $Id: serendipity_lang_zh.inc.php 942 2006-02-13 10:57:53Z garvinhicking $
 # Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
 # All rights reserved.  See LICENSE file for licensing details
 /* vim: set sts=4 ts=4 expandtab : */
@@ -810,3 +810,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/addlang.txt b/lang/addlang.txt
index d524bb8..648e5d0 100644
--- a/lang/addlang.txt
+++ b/lang/addlang.txt
@@ -1,2 +1 @@
-@define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
-@define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/plugin_lang.php b/lang/plugin_lang.php
index 3b441f7..694aa9d 100644
--- a/lang/plugin_lang.php
+++ b/lang/plugin_lang.php
@@ -85,3 +85,4 @@ foreach($const['missing'] AS $file => $constants) {
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_bg.inc.php b/lang/serendipity_lang_bg.inc.php
index e94fa9c..cc939b7 100644
--- a/lang/serendipity_lang_bg.inc.php
+++ b/lang/serendipity_lang_bg.inc.php
@@ -797,3 +797,4 @@
 @define('INSTALL_RSSFETCHLIMIT_DESC', 'Áðîé íà ñòàòèèòå, êîèòî äà áúäàò èçâåæäàíè â RSS åìèñèè.');
 @define('INSTAL_DB_UTF8', 'Ðàçðåøàâàíå íà ïðåêîäèðàíåòî íà ñèìâîëèòå ïðè ðàáîòà ñ MySQL áàçà äàííè');
 @define('INSTAL_DB_UTF8_DESC', 'Ñïåöèàëíî çà MySQL. Îòãîâîð \'Äà\' èçïúëíÿâà \'SET NAMES\', çà äà îïðåäåëè êîäèðàíåòî íà ñèìâîëèòå â áàçàòà äàííè. Âêëþ÷åòå èëè èçêëþ÷åòå òàçè îïöèÿ, àêî âèæäàòå íå÷åòèìè ñèìâîëè â ñòàòèèòå.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_cn.inc.php b/lang/serendipity_lang_cn.inc.php
index af5a08f..19d3b9a 100644
--- a/lang/serendipity_lang_cn.inc.php
+++ b/lang/serendipity_lang_cn.inc.php
@@ -810,3 +810,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_cs.inc.php b/lang/serendipity_lang_cs.inc.php
index 8af5271..553b8bd 100644
--- a/lang/serendipity_lang_cs.inc.php
+++ b/lang/serendipity_lang_cs.inc.php
@@ -812,3 +812,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_cz.inc.php b/lang/serendipity_lang_cz.inc.php
index 8f7055d..da24674 100644
--- a/lang/serendipity_lang_cz.inc.php
+++ b/lang/serendipity_lang_cz.inc.php
@@ -812,3 +812,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_da.inc.php b/lang/serendipity_lang_da.inc.php
index 2fc9fae..d1dca4b 100644
--- a/lang/serendipity_lang_da.inc.php
+++ b/lang/serendipity_lang_da.inc.php
@@ -811,3 +811,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_de.inc.php b/lang/serendipity_lang_de.inc.php
index e9e80f5..d5005ce 100644
--- a/lang/serendipity_lang_de.inc.php
+++ b/lang/serendipity_lang_de.inc.php
@@ -810,3 +810,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_en.inc.php b/lang/serendipity_lang_en.inc.php
index c1632a8..e12d830 100644
--- a/lang/serendipity_lang_en.inc.php
+++ b/lang/serendipity_lang_en.inc.php
@@ -809,3 +809,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_es.inc.php b/lang/serendipity_lang_es.inc.php
index 5d48e21..13c375c 100644
--- a/lang/serendipity_lang_es.inc.php
+++ b/lang/serendipity_lang_es.inc.php
@@ -827,3 +827,4 @@ Melvin TODO [20060128]: What spanish word do we use for "referrers" ??
 @define('INSTAL_DB_UTF8_DESC', 'Envía una consulta MySQL "SET NAMES" para definir el juego de caracteres requerido por la base de datos. Actívalo o desactívalo sí ves caracteres extraños en tu blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_fa.inc.php b/lang/serendipity_lang_fa.inc.php
index f714c57..fbdf45a 100644
--- a/lang/serendipity_lang_fa.inc.php
+++ b/lang/serendipity_lang_fa.inc.php
@@ -811,3 +811,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_fi.inc.php b/lang/serendipity_lang_fi.inc.php
index 73eda22..01e308f 100644
--- a/lang/serendipity_lang_fi.inc.php
+++ b/lang/serendipity_lang_fi.inc.php
@@ -809,3 +809,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_fr.inc.php b/lang/serendipity_lang_fr.inc.php
index f187c60..c9018d4 100644
--- a/lang/serendipity_lang_fr.inc.php
+++ b/lang/serendipity_lang_fr.inc.php
@@ -816,3 +816,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_hu.inc.php b/lang/serendipity_lang_hu.inc.php
index b874f74..eb1f240 100644
--- a/lang/serendipity_lang_hu.inc.php
+++ b/lang/serendipity_lang_hu.inc.php
@@ -810,3 +810,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_is.inc.php b/lang/serendipity_lang_is.inc.php
index a777800..3b26a03 100644
--- a/lang/serendipity_lang_is.inc.php
+++ b/lang/serendipity_lang_is.inc.php
@@ -810,3 +810,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_it.inc.php b/lang/serendipity_lang_it.inc.php
index 9a10fd6..f9a7b8b 100644
--- a/lang/serendipity_lang_it.inc.php
+++ b/lang/serendipity_lang_it.inc.php
@@ -811,3 +811,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_ja.inc.php b/lang/serendipity_lang_ja.inc.php
index 96b993a..1bd4d39 100644
--- a/lang/serendipity_lang_ja.inc.php
+++ b/lang/serendipity_lang_ja.inc.php
@@ -813,3 +813,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_ko.inc.php b/lang/serendipity_lang_ko.inc.php
index 1311847..0233251 100644
--- a/lang/serendipity_lang_ko.inc.php
+++ b/lang/serendipity_lang_ko.inc.php
@@ -812,3 +812,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_nl.inc.php b/lang/serendipity_lang_nl.inc.php
index 7d94c1c..b4b1a52 100644
--- a/lang/serendipity_lang_nl.inc.php
+++ b/lang/serendipity_lang_nl.inc.php
@@ -812,3 +812,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_no.inc.php b/lang/serendipity_lang_no.inc.php
index dea5974..7a934b4 100644
--- a/lang/serendipity_lang_no.inc.php
+++ b/lang/serendipity_lang_no.inc.php
@@ -812,3 +812,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_pt.inc.php b/lang/serendipity_lang_pt.inc.php
index 732c500..3451cc0 100644
--- a/lang/serendipity_lang_pt.inc.php
+++ b/lang/serendipity_lang_pt.inc.php
@@ -814,3 +814,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_pt_PT.inc.php b/lang/serendipity_lang_pt_PT.inc.php
index 150437a..d8317bd 100644
--- a/lang/serendipity_lang_pt_PT.inc.php
+++ b/lang/serendipity_lang_pt_PT.inc.php
@@ -817,3 +817,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_ro.inc.php b/lang/serendipity_lang_ro.inc.php
index 2945f47..89e4595 100644
--- a/lang/serendipity_lang_ro.inc.php
+++ b/lang/serendipity_lang_ro.inc.php
@@ -810,3 +810,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_ru.inc.php b/lang/serendipity_lang_ru.inc.php
index e3ec56a..b0a7685 100644
--- a/lang/serendipity_lang_ru.inc.php
+++ b/lang/serendipity_lang_ru.inc.php
@@ -813,3 +813,4 @@ $i18n_filename_to   = array('_', 'a', 'A', 'b', 'B', 'v', 'V', 'g', 'G', 'd', 'D
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_se.inc.php b/lang/serendipity_lang_se.inc.php
index eabbc39..da56fef 100644
--- a/lang/serendipity_lang_se.inc.php
+++ b/lang/serendipity_lang_se.inc.php
@@ -809,3 +809,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_ta.inc.php b/lang/serendipity_lang_ta.inc.php
index 610e74b..cd00712 100644
--- a/lang/serendipity_lang_ta.inc.php
+++ b/lang/serendipity_lang_ta.inc.php
@@ -809,3 +809,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_tn.inc.php b/lang/serendipity_lang_tn.inc.php
index c8c2fb3..3296d2a 100644
--- a/lang/serendipity_lang_tn.inc.php
+++ b/lang/serendipity_lang_tn.inc.php
@@ -812,3 +812,4 @@ $i18n_unknown = 'tw';
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_tw.inc.php b/lang/serendipity_lang_tw.inc.php
index addbd97..9a5cc7b 100644
--- a/lang/serendipity_lang_tw.inc.php
+++ b/lang/serendipity_lang_tw.inc.php
@@ -812,3 +812,4 @@ $i18n_unknown = 'tw';
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
diff --git a/lang/serendipity_lang_zh.inc.php b/lang/serendipity_lang_zh.inc.php
index 9b6ca26..028089d 100644
--- a/lang/serendipity_lang_zh.inc.php
+++ b/lang/serendipity_lang_zh.inc.php
@@ -810,3 +810,4 @@
 @define('INSTAL_DB_UTF8_DESC', 'Issues a MySQL "SET NAMES" query to indicate the required charset for the database. Turn this on or off, if you see weird characters in your blog.');
 @define('ONTHEFLYSYNCH', 'Enable on-the-fly media synchronization');
 @define('ONTHEFLYSYNCH_DESC', 'If enabled, Serendipity will compare the media database with the files stored on your server and synchronize the database and directory contents.');
+@define('USERCONF_CHECK_USERNAME_ERROR', 'The username cannot be left blank.');
-- 
2.39.5