bug #385 update to smarty-3.1.28-dev (from Github)

1 files changed, 134 insertions, 0 deletions

diff --git a/include/smarty/libs/sysplugins/smarty_internal_extension_clear.php b/include/smarty/libs/sysplugins/smarty_internal_extension_clear.php
new file mode 100644
index 000000000..c595214d8
--- /dev/null
+++ b/include/smarty/libs/sysplugins/smarty_internal_extension_clear.php
@@ -0,0 +1,134 @@
+<?php
+
+/**
+ * Smarty Extension Clear
+ *
+ * $smarty->clear() method file cache file resource
+ *
+ * @package    Smarty
+ * @subpackage PluginsInternal
+ * @author     Uwe Tews
+ */
+class Smarty_Internal_Extension_Clear
+{
+    /**
+     * Empty cache for a specific template
+     *
+     * @param Smarty  $smarty
+     * @param string  $resource_name template name
+     * @param string  $cache_id      cache id
+     * @param string  $compile_id    compile id
+     * @param integer $exp_time      expiration time (number of seconds, not timestamp)
+     *
+     * @return integer number of cache files deleted
+     */
+    public static function clear(Smarty $smarty, $resource_name, $cache_id, $compile_id, $exp_time)
+    {
+        $_cache_id = isset($cache_id) ? preg_replace('![^\w\|]+!', '_', $cache_id) : null;
+        $_compile_id = isset($compile_id) ? preg_replace('![^\w]+!', '_', $compile_id) : null;
+        $_dir_sep = $smarty->use_sub_dirs ? '/' : '^';
+        $_compile_id_offset = $smarty->use_sub_dirs ? 3 : 0;
+        $_dir = $smarty->getCacheDir();
+        if ($_dir == '/') { //We should never want to delete this!
+            return 0;
+        }
+        $_dir_length = strlen($_dir);
+        if (isset($_cache_id)) {
+            $_cache_id_parts = explode('|', $_cache_id);
+            $_cache_id_parts_count = count($_cache_id_parts);
+            if ($smarty->use_sub_dirs) {
+                foreach ($_cache_id_parts as $id_part) {
+                    $_dir .= $id_part . DS;
+                }
+            }
+        }
+        if (isset($resource_name)) {
+            $_save_stat = $smarty->caching;
+            $smarty->caching = true;
+            $tpl = new $smarty->template_class($resource_name, $smarty);
+            $smarty->caching = $_save_stat;
+
+            // remove from template cache
+            $tpl->source; // have the template registered before unset()
+
+            if ($tpl->source->exists) {
+                $_resourcename_parts = basename(str_replace('^', '/', $tpl->cached->filepath));
+            } else {
+                return 0;
+            }
+        }
+        $_count = 0;
+        $_time = time();
+        if (file_exists($_dir)) {
+            $_cacheDirs = new RecursiveDirectoryIterator($_dir);
+            $_cache = new RecursiveIteratorIterator($_cacheDirs, RecursiveIteratorIterator::CHILD_FIRST);
+            foreach ($_cache as $_file) {
+                if (substr(basename($_file->getPathname()), 0, 1) == '.' || strpos($_file, '.svn') !== false) {
+                    continue;
+                }
+                // directory ?
+                if ($_file->isDir()) {
+                    if (!$_cache->isDot()) {
+                        // delete folder if empty
+                        @rmdir($_file->getPathname());
+                    }
+                } else {
+                    $_parts = explode($_dir_sep, str_replace('\\', '/', substr((string) $_file, $_dir_length)));
+                    $_parts_count = count($_parts);
+                    // check name
+                    if (isset($resource_name)) {
+                        if ($_parts[$_parts_count - 1] != $_resourcename_parts) {
+                            continue;
+                        }
+                    }
+                    // check compile id
+                    if (isset($_compile_id) && (!isset($_parts[$_parts_count - 2 - $_compile_id_offset]) ||
+                            $_parts[$_parts_count - 2 - $_compile_id_offset] != $_compile_id)
+                    ) {
+                        continue;
+                    }
+                    // check cache id
+                    if (isset($_cache_id)) {
+                        // count of cache id parts
+                        $_parts_count = (isset($_compile_id)) ? $_parts_count - 2 - $_compile_id_offset :
+                            $_parts_count - 1 - $_compile_id_offset;
+                        if ($_parts_count < $_cache_id_parts_count) {
+                            continue;
+                        }
+                        for ($i = 0; $i < $_cache_id_parts_count; $i ++) {
+                            if ($_parts[$i] != $_cache_id_parts[$i]) {
+                                continue 2;
+                            }
+                        }
+                    }
+                    // expired ?
+                    if (isset($exp_time)) {
+                        if ($exp_time < 0) {
+                            preg_match('#\'cache_lifetime\' =>\s*(\d*)#', file_get_contents($_file), $match);
+                            if ($_time < (@filemtime($_file) + $match[1])) {
+                                continue;
+                            }
+                        } else {
+                            if ($_time - @filemtime($_file) < $exp_time) {
+                                continue;
+                            }
+                        }
+                    }
+                    // remove from template cache
+                    if (isset($smarty->_cache['template_objects'])) {
+                        foreach ($smarty->_cache['template_objects'] as $key => $tpl) {
+                            if (isset($tpl->cached) && $tpl->cached->filepath == (string) $_file) {
+                                unset($smarty->_cache['template_objects'][$key]);
+                            }
+                        }
+                    }
+                    $_count += @unlink((string) $_file) ? 1 : 0;
+                    if (function_exists('opcache_invalidate')) {
+                        opcache_invalidate((string) $_file);
+                    }
+                }
+            }
+        }
+        return $_count;
+    }
+}
\ No newline at end of file