Fixing Issue #118 - muteExpectedErrors would fail non-readable directories

change_log.txt

@@ -1,4 +1,7 @@
 ===== trunk  =====
+01.11.2012
+- bugfix muteExcpetedErrors() would screw up for non-readable paths (Issue #118)
+
 ===== Smarty-3.1.12  =====
 14.09.2012
 - bugfix template inheritance failed to compile with delimiters {/ and /} (Forum Topic 23008)

libs/Smarty.class.php

@@ -1392,17 +1392,24 @@ class Smarty extends Smarty_Internal_TemplateBase {
         // add the SMARTY_DIR to the list of muted directories
         if (!isset(Smarty::$_muted_directories[SMARTY_DIR])) {
             $smarty_dir = realpath(SMARTY_DIR);
+            if ($smarty_dir !== false) {
                 Smarty::$_muted_directories[SMARTY_DIR] = array(
                     'file' => $smarty_dir,
                     'length' => strlen($smarty_dir),
                 );
             }
+        }
 
         // walk the muted directories and test against $errfile
         foreach (Smarty::$_muted_directories as $key => &$dir) {
             if (!$dir) {
                 // resolve directory and length for speedy comparisons
                 $file = realpath($key);
+                if ($file === false) {
+                    // this directory does not exist, remove and skip it
+                    unset(Smarty::$_muted_directories[$key]);
+                    continue;
+                }
                 $dir = array(
                     'file' => $file,
                     'length' => strlen($file),