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smarty/classes/class.smarty.frontend.php

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PHP

<?php
/**
* This file contains the frontend class for smarty wrapper plugin.
*
* @package Plugin
* @subpackage SmartyWrapper
* @version $Rev: 128 $
* @since 2.0.2
* @author Ortwin Pinke <o.pinke@conlite.org>
* @copyright (c) 2018, conlite.org
* @license http://www.gnu.de/documents/gpl.en.html GPL v3 (english version)
* @license http://www.gnu.de/documents/gpl.de.html GPL v3 (deutsche Version)
* @link http://www.conlite.org ConLite.org
*
* $Id: class.smarty.frontend.php 128 2019-07-03 11:58:28Z oldperl $
*/
/**
* This file contains the frontend class for smarty wrapper plugin.
*
* @package Plugin
* @subpackage SmartyWrapper
* @author Andreas Dieter
* @copyright four for business AG <www.4fb.de>
*/
defined('CON_FRAMEWORK') || die('Illegal call: Missing framework initialization - request aborted.');
/**
* Wrapper class for Integration of smarty.
*
* @package Plugin
* @subpackage SmartyWrapper
*/
class cSmartyFrontend {
/**
* The smarty Object
*
* @var Smarty
*/
protected static $oSmarty;
/**
* static flag to simulate singleton behaviour
*
* @var bool
*/
public static $bSmartyInstanciated = false;
/**
* static default paths
*
* @var array
*/
protected static $aDefaultPaths = array();
/**
* constructor
*
* @param array &$aCfg contenido cfg array
* @param array &$aClientCfg contenido client cfg array of the specific
* client
* @throws cException
* @throws cInvalidArgumentException if the given configurations are not an
* array
*/
public function __construct(&$aCfg, &$aClientCfg, $bSanityCheck = false) {
// check if already instanciated
if (isset(self::$bSmartyInstanciated) && self::$bSmartyInstanciated) {
throw new Exception("cSmartyFrontend class is intended to be used as singleton. Do not instanciate multiple times.");
}
if (!is_array($aCfg)) {
throw new Exception(__CLASS__ . " " . __FUNCTION__ . " Parameter 1 invalid.");
}
if (!is_array($aClientCfg)) {
throw new Exception(__CLASS__ . " " . __FUNCTION__ . " Parameter 2 invalid.");
}
self::$oSmarty = new cSmartyWrapper();
self::$aDefaultPaths = array(
'template_dir' => $aClientCfg['template']['path'],
'cache_dir' => $aClientCfg['cache']['path'] . 'templates_c',
'compile_dir' => $aClientCfg['cache']['path'] . 'templates_c'
);
// check the template directory and create new one if it not exists
if (!is_dir(self::$aDefaultPaths['compile_dir'])) {
mkdir(self::$aDefaultPaths['compile_dir'], 0777);
}
// check if folders exist and rights ok if needed
if ($bSanityCheck) {
foreach (self::$aDefaultPaths as $key => $value) {
if (!file_exists($value)) {
throw new Exception(sprintf("Class %s Error: Folder %s does not exist. Please create.", __CLASS__, $value));
}
if ($key == 'cache' || $key == 'compile_dir') {
if (!is_writable($value)) {
throw new Exception(sprintf("Class %s Error: Folder %s is not writable. Please check for sufficient rights.", __CLASS__, $value));
}
}
}
}
self::resetPaths();
self::$bSmartyInstanciated = true;
}
/**
* prevent users from cloning instance
*
* @throws cException if this function is called
*/
public function __clone() {
throw new Exception("cSmartyFrontend class is intended to be used as singleton. Do not clone.");
}
/**
* destructor
* set cSmarty::bSmartyInstanciated to false
*/
public function __destruct() {
self::$bSmartyInstanciated = false;
}
/**
* static function to provide the smart object
*
* @param boolean $bResetTemplate true if the template values shall all be
* resetted
* @throws cException if singleton has not been instantiated yet
* @return cSmartyWrapper
*/
public static function getInstance($bResetTemplate = false) {
if (!isset(self::$oSmarty)) {
// @TODO find a smart way to instanciate smarty object on demand
throw new Exception("Smarty singleton not instantiated yet.");
}
if ($bResetTemplate) {
self::$oSmarty = new cSmartyWrapper();
self::resetPaths();
}
return self::$oSmarty;
}
/**
* sets the default paths again
*/
public static function resetPaths() {
self::$oSmarty->setTemplateDir(self::$aDefaultPaths['template_dir']);
self::$oSmarty->setCacheDir(self::$aDefaultPaths['cache_dir']);
self::$oSmarty->setCompileDir(self::$aDefaultPaths['compile_dir']);
}
}
?>