Check for file exists before loading app version file

diff --git a/lib/app.php b/lib/app.php
index 594f057709126a8bd43a469e9a00157d6e74c6ab..cb68ea3ddde73f8852e9b2a381c687361308061b 100755 (executable)
--- a/lib/app.php
+++ b/lib/app.php
@@ -390,9 +390,8 @@ class OC_App{
         */
        public static function getAppVersion($appid) {
                $file= self::getAppPath($appid).'/appinfo/version';
-               $version=@file_get_contents($file);
-               if($version) {
-                       return trim($version);
+               if(is_file($file) && $version = trim(file_get_contents($file))) {
+                       return $version;
                }else{
                        $appData=self::getAppInfo($appid);
                        return isset($appData['version'])? $appData['version'] : '';