Add possibility to include login method in a module

htdocs/includes/login/functions_empty.php

@@ -0,0 +1,42 @@
+<?php
+/* Copyright (C) 2010 Regis Houssin  <regis@dolibarr.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/**
+ *      \file       htdocs/includes/login/functions_empty.php
+ *      \ingroup    core
+ *      \brief      Empty authentication functions for test
+ *		\version	$Id$
+ */
+
+
+/**
+ *      \brief		Check user and password
+ *      \param		usertotest		Login
+ *      \param		passwordtotest	Password
+ *      \return		string			Login if ok, '' if ko.
+ */
+function check_user_password_empty($usertotest,$passwordtotest)
+{
+	dol_syslog("functions_empty::check_user_password_empty usertotest=".$usertotest);
+
+	$login='';
+
+	return $login;
+}
+
+?>

htdocs/main.inc.php

@@ -287,7 +287,7 @@ if (! defined('NOLOGIN'))
 	$authmode=explode(',',$dolibarr_main_authentication);
 
 	// No authentication mode
-	if (! sizeof($authmode))
+	if (! sizeof($authmode) && is_array($conf->login_method_modules) && !empty($conf->login_method_modules))
 	{
 		$langs->load('main');
 		dol_print_error('',$langs->trans("ErrorConfigParameterNotDefined",'dolibarr_main_authentication'));