Revert "update composer libs"

This reverts commit 5e5f0aa955d86743a14531bed98501b59140ab1f.

1 files changed, 15 insertions, 3 deletions

diff --git a/vendor/sabre/vobject/lib/StringUtil.php b/vendor/sabre/vobject/lib/StringUtil.php
index b04539e4a..2333d6ab9 100644
--- a/vendor/sabre/vobject/lib/StringUtil.php
+++ b/vendor/sabre/vobject/lib/StringUtil.php
@@ -40,11 +40,23 @@ class StringUtil
      */
     public static function convertToUTF8($str)
     {
-        if (!mb_check_encoding($str, 'UTF-8') && mb_check_encoding($str, 'ISO-8859-1')) {
-            $str = mb_convert_encoding($str, 'UTF-8', 'ISO-8859-1');
+        $encoding = mb_detect_encoding($str, ['UTF-8', 'ISO-8859-1', 'WINDOWS-1252'], true);
+
+        switch ($encoding) {
+            case 'ISO-8859-1':
+                $newStr = utf8_encode($str);
+                break;
+            /* Unreachable code. Not sure yet how we can improve this
+             * situation.
+            case 'WINDOWS-1252' :
+                $newStr = iconv('cp1252', 'UTF-8', $str);
+                break;
+             */
+            default:
+                 $newStr = $str;
         }
 
         // Removing any control characters
-        return preg_replace('%(?:[\x00-\x08\x0B-\x0C\x0E-\x1F\x7F])%', '', $str);
+        return preg_replace('%(?:[\x00-\x08\x0B-\x0C\x0E-\x1F\x7F])%', '', $newStr);
     }
 }