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111 lines
4.1 KiB
111 lines
4.1 KiB
<?php
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/**
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* Smarty Extension Loadplugin
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*
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* $smarty->loadPlugin() method
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*
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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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class Smarty_Internal_Method_LoadPlugin
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{
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/**
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* Cache of searched plugin files
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*
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* @var array
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*/
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public $plugin_files = array();
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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 \Smarty $smarty
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* @param string $plugin_name class plugin name to load
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* @param bool $check check if already loaded
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*
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* @return bool|string
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* @throws \SmartyException
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*/
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public function loadPlugin(Smarty $smarty, $plugin_name, $check)
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{
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// if function or class exists, exit silently (already loaded)
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if ($check && (is_callable($plugin_name) || class_exists($plugin_name, false))) {
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return true;
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}
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if (!preg_match('#^smarty_((internal)|([^_]+))_(.+)$#i', $plugin_name, $match)) {
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throw new SmartyException("plugin {$plugin_name} is not a valid name format");
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}
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if (!empty($match[ 2 ])) {
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$file = SMARTY_SYSPLUGINS_DIR . strtolower($plugin_name) . '.php';
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if (isset($this->plugin_files[ $file ])) {
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if ($this->plugin_files[ $file ] !== false) {
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return $this->plugin_files[ $file ];
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} else {
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return false;
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}
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} else {
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if (is_file($file)) {
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$this->plugin_files[ $file ] = $file;
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require_once($file);
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return $file;
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} else {
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$this->plugin_files[ $file ] = false;
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return false;
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}
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}
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}
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// plugin filename is expected to be: [type].[name].php
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$_plugin_filename = "{$match[1]}.{$match[4]}.php";
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$_lower_filename = strtolower($_plugin_filename);
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if (isset($this->plugin_files)) {
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if (isset($this->plugin_files[ 'plugins_dir' ][ $_lower_filename ])) {
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if (!$smarty->use_include_path || $this->plugin_files[ 'plugins_dir' ][ $_lower_filename ] !== false) {
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return $this->plugin_files[ 'plugins_dir' ][ $_lower_filename ];
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}
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}
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if (!$smarty->use_include_path || $smarty->ext->_getIncludePath->isNewIncludePath($smarty)) {
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unset($this->plugin_files[ 'include_path' ]);
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} else {
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if (isset($this->plugin_files[ 'include_path' ][ $_lower_filename ])) {
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return $this->plugin_files[ 'include_path' ][ $_lower_filename ];
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}
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}
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}
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$_file_names = array($_plugin_filename);
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if ($_lower_filename !== $_plugin_filename) {
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$_file_names[] = $_lower_filename;
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}
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$_p_dirs = $smarty->getPluginsDir();
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if (!isset($this->plugin_files[ 'plugins_dir' ][ $_lower_filename ])) {
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// loop through plugin dirs and find the plugin
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foreach ($_p_dirs as $_plugin_dir) {
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foreach ($_file_names as $name) {
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$file = $_plugin_dir . $name;
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if (is_file($file)) {
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$this->plugin_files[ 'plugins_dir' ][ $_lower_filename ] = $file;
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require_once($file);
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return $file;
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}
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$this->plugin_files[ 'plugins_dir' ][ $_lower_filename ] = false;
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}
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}
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}
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if ($smarty->use_include_path) {
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foreach ($_file_names as $_file_name) {
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// try PHP include_path
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$file = $smarty->ext->_getIncludePath->getIncludePath($_p_dirs, $_file_name, $smarty);
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$this->plugin_files[ 'include_path' ][ $_lower_filename ] = $file;
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if ($file !== false) {
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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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}
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// no plugin loaded
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return false;
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}
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} |