diff --git a/library/smarty/libs/sysplugins/smarty_internal_filter_handler.php b/library/smarty/libs/sysplugins/smarty_internal_filter_handler.php
new file mode 100644
--- /dev/null
+++ b/library/smarty/libs/sysplugins/smarty_internal_filter_handler.php
@@ -0,0 +1,65 @@
+<?php
+/**
+ * Smarty Internal Plugin Filter Handler
+ * Smarty filter handler class
+ *
+ * @package    Smarty
+ * @subpackage PluginsInternal
+ * @author     Uwe Tews
+ */
+
+/**
+ * Class for filter processing
+ *
+ * @package    Smarty
+ * @subpackage PluginsInternal
+ */
+class Smarty_Internal_Filter_Handler {
+    /**
+     * Run filters over content
+     * The filters will be lazy loaded if required
+     * class name format: Smarty_FilterType_FilterName
+     * plugin filename format: filtertype.filtername.php
+     * Smarty2 filter plugins could be used
+     *
+     * @param  string $type the type of filter ('pre','post','output') which shall run
+     * @param  string $content the content which shall be processed by the filters
+     * @param  Smarty_Internal_Template $template template object
+     *
+     * @throws SmartyException
+     * @return string                   the filtered content
+     */
+    public static function runFilter($type, $content, Smarty_Internal_Template $template) {
+        $output = $content;
+        // loop over autoload filters of specified type
+        if (!empty($template->smarty->autoload_filters[$type])) {
+            foreach ((array)$template->smarty->autoload_filters[$type] as $name) {
+                $plugin_name = "Smarty_{$type}filter_{$name}";
+                if ($template->smarty->loadPlugin($plugin_name)) {
+                    if (function_exists($plugin_name)) {
+                        // use loaded Smarty2 style plugin
+                        $output = $plugin_name($output, $template);
+                    } elseif (class_exists($plugin_name, false)) {
+                        // loaded class of filter plugin
+                        $output = call_user_func(array($plugin_name, 'execute'), $output, $template);
+                    }
+                } else {
+                    // nothing found, throw exception
+                    throw new SmartyException("Unable to load filter {$plugin_name}");
+                }
+            }
+        }
+        // loop over registerd filters of specified type
+        if (!empty($template->smarty->registered_filters[$type])) {
+            foreach ($template->smarty->registered_filters[$type] as $key => $name) {
+                if (is_array($template->smarty->registered_filters[$type][$key])) {
+                    $output = call_user_func($template->smarty->registered_filters[$type][$key], $output, $template);
+                } else {
+                    $output = $template->smarty->registered_filters[$type][$key]($output, $template);
+                }
+            }
+        }
+        // return filtered output
+        return $output;
+    }
+}