1 files changed, 67 insertions, 0 deletions
diff --git a/include/smarty/libs/sysplugins/smarty_internal_runtime_cachemodify.php b/include/smarty/libs/sysplugins/smarty_internal_runtime_cachemodify.php
new file mode 100644
index 000000000..4e2fb83e6
--- /dev/null
+++ b/include/smarty/libs/sysplugins/smarty_internal_runtime_cachemodify.php
@@ -0,0 +1,67 @@
+<?php
+
+/**
+ * Inline Runtime Methods render, setSourceByUid, setupSubTemplate
+ *
+ * @package    Smarty
+ * @subpackage PluginsInternal
+ * @author     Uwe Tews
+ *
+ **/
+class Smarty_Internal_Runtime_CacheModify
+{
+    /**
+     * check client side cache
+     *
+     * @param Smarty_Internal_Template $_template
+     * @param  string                  $content
+     */
+    public function cacheModifiedCheck(Smarty_Template_Cached $cached, Smarty_Internal_Template $_template, $content)
+    {
+        $_isCached = $_template->isCached() && !$_template->compiled->has_nocache_code;
+        $_last_modified_date =
+            @substr($_SERVER['HTTP_IF_MODIFIED_SINCE'], 0, strpos($_SERVER['HTTP_IF_MODIFIED_SINCE'], 'GMT') + 3);
+        if ($_isCached && $cached->timestamp <= strtotime($_last_modified_date)) {
+            switch (PHP_SAPI) {
+                case 'cgi': // php-cgi < 5.3
+                case 'cgi-fcgi': // php-cgi >= 5.3
+                case 'fpm-fcgi': // php-fpm >= 5.3.3
+                    header('Status: 304 Not Modified');
+                    break;
+
+                case 'cli':
+                    if ( /* ^phpunit */
+                    !empty($_SERVER['SMARTY_PHPUNIT_DISABLE_HEADERS']) /* phpunit$ */
+                    ) {
+                        $_SERVER['SMARTY_PHPUNIT_HEADERS'][] = '304 Not Modified';
+                    }
+                    break;
+
+                default:
+                    if ( /* ^phpunit */
+                    !empty($_SERVER['SMARTY_PHPUNIT_DISABLE_HEADERS']) /* phpunit$ */
+                    ) {
+                        $_SERVER['SMARTY_PHPUNIT_HEADERS'][] = '304 Not Modified';
+                    } else {
+                        header($_SERVER['SERVER_PROTOCOL'] . ' 304 Not Modified');
+                    }
+                    break;
+            }
+        } else {
+            switch (PHP_SAPI) {
+                case 'cli':
+                    if ( /* ^phpunit */
+                    !empty($_SERVER['SMARTY_PHPUNIT_DISABLE_HEADERS']) /* phpunit$ */
+                    ) {
+                        $_SERVER['SMARTY_PHPUNIT_HEADERS'][] =
+                            'Last-Modified: ' . gmdate('D, d M Y H:i:s', $cached->timestamp) . ' GMT';
+                    }
+                    break;
+                default:
+                    header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $cached->timestamp) . ' GMT');
+                    break;
+            }
+            echo $content;
+        }
+    }
+}