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

1 files changed, 111 insertions, 0 deletions

diff --git a/include/smarty/libs/sysplugins/smarty_internal_method_loadplugin.php b/include/smarty/libs/sysplugins/smarty_internal_method_loadplugin.php
new file mode 100644
index 000000000..c153f55f0
--- /dev/null
+++ b/include/smarty/libs/sysplugins/smarty_internal_method_loadplugin.php
@@ -0,0 +1,111 @@
+<?php
+
+/**
+ * Smarty Extension Loadplugin
+ *
+ * $smarty->loadPlugin() method
+ *
+ * @package    Smarty
+ * @subpackage PluginsInternal
+ * @author     Uwe Tews
+ */
+class Smarty_Internal_Method_LoadPlugin
+{
+    /**
+     * Cache of searched plugin files
+     *
+     * @var array
+     */
+    public $plugin_files = array();
+
+    /**
+     * Takes unknown classes and loads plugin files for them
+     * class name format: Smarty_PluginType_PluginName
+     * plugin filename format: plugintype.pluginname.php
+     *
+     * @param \Smarty $smarty
+     * @param  string $plugin_name class plugin name to load
+     * @param  bool   $check       check if already loaded
+     *
+     * @return bool|string
+     * @throws \SmartyException
+     */
+    public function loadPlugin(Smarty $smarty, $plugin_name, $check)
+    {
+        // if function or class exists, exit silently (already loaded)
+        if ($check && (is_callable($plugin_name) || class_exists($plugin_name, false))) {
+            return true;
+        }
+        if (!preg_match('#^smarty_((internal)|([^_]+))_(.+)$#i', $plugin_name, $match)) {
+            throw new SmartyException("plugin {$plugin_name} is not a valid name format");
+        }
+        if (!empty($match[2])) {
+            $file = SMARTY_SYSPLUGINS_DIR . strtolower($plugin_name) . '.php';
+            if (isset($this->plugin_files[$file])) {
+                if ($this->plugin_files[$file] !== false) {
+                    return $this->plugin_files[$file];
+                } else {
+                    return false;
+                }
+            } else {
+                if (is_file($file)) {
+                    $this->plugin_files[$file] = $file;
+                    require_once($file);
+                    return $file;
+                } else {
+                    $this->plugin_files[$file] = false;
+                    return false;
+                }
+            }
+        }
+        // plugin filename is expected to be: [type].[name].php
+        $_plugin_filename = "{$match[1]}.{$match[4]}.php";
+        $_lower_filename = strtolower($_plugin_filename);
+        if (isset($this->plugin_files)) {
+            if (isset($this->plugin_files['plugins_dir'][$_lower_filename])) {
+                if (!$smarty->use_include_path || $this->plugin_files['plugins_dir'][$_lower_filename] !== false) {
+                    return $this->plugin_files['plugins_dir'][$_lower_filename];
+                }
+            }
+            if (!$smarty->use_include_path || $smarty->ext->_getIncludePath->isNewIncludePath($smarty)) {
+                unset($this->plugin_files['include_path']);
+            } else {
+                if (isset($this->plugin_files['include_path'][$_lower_filename])) {
+                    return $this->plugin_files['include_path'][$_lower_filename];
+                }
+            }
+        }
+        $_file_names = array($_plugin_filename);
+        if ($_lower_filename != $_plugin_filename) {
+            $_file_names[] = $_lower_filename;
+        }
+        $_p_dirs = $smarty->getPluginsDir();
+        if (!isset($this->plugin_files['plugins_dir'][$_lower_filename])) {
+            // loop through plugin dirs and find the plugin
+            foreach ($_p_dirs as $_plugin_dir) {
+                foreach ($_file_names as $name) {
+                    $file = $_plugin_dir . $name;
+                    if (is_file($file)) {
+                        $this->plugin_files['plugins_dir'][$_lower_filename] = $file;
+                        require_once($file);
+                        return $file;
+                    }
+                    $this->plugin_files['plugins_dir'][$_lower_filename] = false;
+                }
+            }
+        }
+        if ($smarty->use_include_path) {
+            foreach ($_file_names as $_file_name) {
+                // try PHP include_path
+                $file = $smarty->ext->_getIncludePath->getIncludePath($_p_dirs, $_file_name, $smarty);
+                $this->plugin_files['include_path'][$_lower_filename] = $file;
+                if ($file !== false) {
+                    require_once($file);
+                    return $file;
+                }
+            }
+        }
+        // no plugin loaded
+        return false;
+    }
+}
\ No newline at end of file