From df206ef87fbf0458d157c93dbf3835276fe59a18 Mon Sep 17 00:00:00 2001
From: moodler <moodler>
Date: Sun, 24 Sep 2006 12:07:44 +0000
Subject: [PATCH] Corrected accidental language-changing because of lang in
 POST

---
 lib/setup.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/setup.php b/lib/setup.php
index 517164ea02..c28c8236a3 100644
--- a/lib/setup.php
+++ b/lib/setup.php
@@ -532,7 +532,7 @@ $CFG->os = PHP_OS;
 /// in the language file.  Otherwise, if the admin hasn't specified a locale
 /// then use the one from the default language.  Otherwise (and this is the
 /// majority of cases), use the stored locale specified by admin.
-    if ($SESSION !== NULL and $lang = optional_param('lang', false, PARAM_SAFEDIR)) {
+    if ($SESSION !== NULL && isset($_GET['lang']) && ($lang = clean_param($_GET['lang'], PARAM_SAFEDIR))) {
         if (file_exists($CFG->dataroot .'/lang/'. $lang) or file_exists($CFG->dirroot .'/lang/'. $lang)) {
             $SESSION->lang = $lang;
         } else if (file_exists($CFG->dataroot.'/lang/'.$lang.'_utf8') or 
-- 
2.39.5