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https://github.com/smarty-php/smarty.git
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65 lines
2.2 KiB
PHP
65 lines
2.2 KiB
PHP
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<?php
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/**
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* Smarty Internal Plugin Loader
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*
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* Compiles the {ldelim} tag
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* @package Smarty
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* @subpackage PluginsInternal
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* @author Uwe Tews
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*/
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/**
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* Smarty Internal Plugin Loader Class
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*/
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class Smarty_Internal_Plugin_Loader {
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/**
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* Takes unknown classes and loads plugin files for them
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* class name format: Smarty_PluginType_PluginName
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* plugin filename format: plugintype.pluginname.php
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*
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* @param string $plugin_name class plugin name to load
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* @return string |boolean filepath of loaded file or false
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*/
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static function loadPlugin($plugin_name, $plugins_dir)
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{
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// if function or class exists, exit silently (already loaded)
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if (is_callable($plugin_name) || class_exists($plugin_name, false))
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return true;
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// Plugin name is expected to be: Smarty_[Type]_[Name]
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$_plugin_name = strtolower($plugin_name);
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$_name_parts = explode('_', $_plugin_name, 3);
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// class name must have three parts to be valid plugin
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if (count($_name_parts) < 3 || $_name_parts[0] !== 'smarty') {
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throw new SmartyException("plugin {$plugin_name} is not a valid name format");
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return false;
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}
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// if type is "internal", get plugin from sysplugins
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if ($_name_parts[1] == 'internal') {
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$file = SMARTY_SYSPLUGINS_DIR . $_plugin_name . '.php';
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if (file_exists($file)) {
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require_once($file);
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return $file;
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} else {
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return false;
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}
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}
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// plugin filename is expected to be: [type].[name].php
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$_plugin_filename = "{$_name_parts[1]}.{$_name_parts[2]}.php";
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// loop through plugin dirs and find the plugin
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foreach((array)$plugins_dir as $_plugin_dir) {
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if (strpos('/\\', substr($_plugin_dir, -1)) === false) {
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$_plugin_dir .= DS;
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}
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$file = $_plugin_dir . $_plugin_filename;
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if (file_exists($file)) {
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require_once($file);
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return $file;
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}
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}
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// no plugin loaded
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return false;
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}
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}
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?>
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