- rewrite mkdir() bugfix to retry automatically see https://github.com/smarty-php/smarty/pull/377

https://github.com/smarty-php/smarty/pull/379

change_log.txt

@@ -1,4 +1,8 @@
 ===== 3.1.32 - dev ===
+30.7.2017
+  - rewrite mkdir() bugfix to retry automatically see https://github.com/smarty-php/smarty/pull/377
+    https://github.com/smarty-php/smarty/pull/379
+
 21.7.2017
   - security possible PHP code injection on custom resources at display() or fetch()
     calls if the resource does not sanitize the template name

libs/Smarty.class.php

@@ -108,7 +108,7 @@ class Smarty extends Smarty_Internal_TemplateBase
     /**
      * smarty version
      */
-    const SMARTY_VERSION = '3.1.32-dev-14';
+    const SMARTY_VERSION = '3.1.32-dev-15';
 
     /**
      * define variable scopes

libs/sysplugins/smarty_internal_runtime_writefile.php

@@ -39,10 +39,21 @@ class Smarty_Internal_Runtime_WriteFile
         $_dirpath = dirname($_filepath);
 
        // if subdirs, create dir structure
-        if ($_dirpath !== '.' && !@mkdir($_dirpath, $_dir_perms, true) && !is_dir($_dirpath)) {
+        if ($_dirpath !== '.') {
+            $i=0;
+            // loop if concurrency problem occurs
+            // see https://bugs.php.net/bug.php?id=35326
+            while (!is_dir($_dirpath)) {
+               if (@mkdir($_dirpath, $_dir_perms, true)) {
+                   break;
+               }
+               if (++$i === 3) {
                    error_reporting($_error_reporting);
                    throw new SmartyException("unable to create directory {$_dirpath}");
                }
+               sleep(1);
+            }
+        }
 
         // write to tmp file, then move to overt file lock race condition
         $_tmp_file = $_dirpath . $smarty->ds . str_replace(array('.', ','), '_', uniqid('wrt', true));