Fix: Default language on login page

ChangeLog

@@ -26,6 +26,7 @@ For users:
 - Fix: Can change password if has only permission change password.
 - Fix: Project PDF document show the tasks.
 - Fix: bug #29278 : SMTP fails with IP
+- Fix: Default language on login page.
 
 For developers:
 - More comments in code.

htdocs/lib/security.lib.php

@@ -35,7 +35,7 @@ function dol_loginfunction($langs,$conf,$mysoc)
 {
 	global $dolibarr_main_demo,$db;
 
-	$langcode=(empty($_GET["lang"])?'auto':$_GET["lang"]);
+	$langcode=(empty($_GET["lang"])?((is_object($langs)&&$langs->defaultlang)?$langs->defaultlang:'auto'):$_GET["lang"]);
 	$langs->setDefaultLang($langcode);
 
 	$langs->load("main");
@@ -44,7 +44,7 @@ function dol_loginfunction($langs,$conf,$mysoc)
 
 	$main_authentication=$conf->file->main_authentication;
 	$session_name=session_name();
-	
+
 	$dol_url_root = DOL_URL_ROOT;
 
 	$php_self = $_SERVER['PHP_SELF'];
@@ -204,9 +204,9 @@ function dol_loginfunction($langs,$conf,$mysoc)
 		}
 	}
 	$main_home=nl2br($conf->global->MAIN_HOME);
-	
+
 	$dol_loginmesg = $_SESSION["dol_loginmesg"];
-	
+
 	include($template_dir.'login.tpl.php');	// To use native PHP
 
 	$_SESSION["dol_loginmesg"] = '';

htdocs/main.inc.php

@@ -338,7 +338,7 @@ if (! defined('NOLOGIN'))
 
 		// Validation tests user / password
 		// If ok, the variable will be initialized login
-		// If error, we will put error message in session under the name dol_loginmesg		$goontestloop=false;
+		// If error, we will put error message in session under the name dol_loginmesg
 		$goontestloop=false;
 		if (isset($_SERVER["REMOTE_USER"]) && in_array('http',$authmode)) $goontestloop=true;
 		if (isset($_POST["username"])) $goontestloop=true;
@@ -438,8 +438,7 @@ if (! defined('NOLOGIN'))
 	}
 	else
 	{
-		// It is already in a backup session login
-		// Remarks: We do not save user object poses for bp in some cases misidentified
+		// It is already in a session
 		$login=$_SESSION["dol_login"];
 		$resultFetchUser=$user->fetch($login);
 		dol_syslog("This is an already logged session. _SESSION['dol_login']=".$login);