HelperFile.php: correctRelativePathFileName() broken after refactor of qfq paths. Fixes #7540

extension/Source/core/helper/HelperFile.php

@@ -105,12 +105,16 @@ class HelperFile {
     public static function getFileStat($pathFileName) {
         $vars = array();
 
-        if (empty($pathFileName) || !file_exists ($pathFileName)) {
+        if (empty($pathFileName) ) {
             return array();
         }
 
         $pathFileName = self::correctRelativPathFileName($pathFileName);
 
+        if(!file_exists ($pathFileName)){
+            return array();
+        }
+
         $vars[VAR_FILE_MIME_TYPE] = self::getMimeType($pathFileName);
         $vars[VAR_FILE_SIZE] = filesize($pathFileName);
 
@@ -133,7 +137,8 @@ class HelperFile {
             return $pathFileName;
         }
 
-        if (substr(getcwd(), -8) == '/' . API_DIR_EXT) {
+        $length = strlen('/' . API_DIR_EXT);
+        if (substr(getcwd(), -$length) == '/' . API_DIR_EXT) {
             return '../../../../../' . $pathFileName;
         }