diff options
Diffstat (limited to 'include/smarty/libs/sysplugins/smarty_internal_method_loadplugin.php')
| -rw-r--r-- | include/smarty/libs/sysplugins/smarty_internal_method_loadplugin.php | 111 |
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; + } +}
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