/**
* Class autoloader
*
* Include classes automatically when they are instantiated.
* @param string
*/
function __autoload($strClassName)
{
$objCache = FileCache::getInstance('autoload');
// Try to load the class name from the session cache
if (!$GLOBALS['TL_CONFIG']['debugMode'] && isset($objCache->{$strClassName})) {
if (@(include_once TL_ROOT . '/' . $objCache->{$strClassName})) {
return;
// The class could be loaded
} else {
unset($objCache->{$strClassName});
// The class has been removed
}
}
$strLibrary = TL_ROOT . '/system/libraries/' . $strClassName . '.php';
// Check for libraries first
if (file_exists($strLibrary)) {
include_once $strLibrary;
$objCache->{$strClassName} = 'system/libraries/' . $strClassName . '.php';
return;
}
// Then check the modules folder
foreach (scan(TL_ROOT . '/system/modules/') as $strFolder) {
if (substr($strFolder, 0, 1) == '.') {
continue;
}
$strModule = TL_ROOT . '/system/modules/' . $strFolder . '/' . $strClassName . '.php';
if (file_exists($strModule)) {
include_once $strModule;
$objCache->{$strClassName} = 'system/modules/' . $strFolder . '/' . $strClassName . '.php';
return;
}
}
// HOOK: include Swift classes
if (class_exists('Swift', false)) {
Swift::autoload($strClassName);
return;
}
// HOOK: include DOMPDF classes
if (function_exists('DOMPDF_autoload')) {
DOMPDF_autoload($strClassName);
return;
}
trigger_error(sprintf('Could not load class %s', $strClassName), E_USER_ERROR);
}
/**
* Update the file cache if a template is deleted
* @return string
*/
public function deleteFromTemplateCache($strFile)
{
$objCache = FileCache::getInstance('templates');
$strKey = preg_replace('/^.*\\/([^\\/]+)\\.[a-z0-9]{3,5}$/i', '$1', $strFile);
unset($objCache->{$strKey});
}
/**
* Find a particular template file and return its path
* @param string
* @param string
* @return string
* @throws Exception
*/
protected function getTemplate($strTemplate, $strFormat = 'html5', $blnFailIfNotFound = false)
{
$strTemplate = basename($strTemplate);
// Contao 3.X only.
if (version_compare(VERSION, '3.0', '>=')) {
// Check for a theme folder
if (TL_MODE == 'FE') {
global $objPage;
$strCustom = str_replace('../', '', $objPage->templateGroup);
if ($strCustom != '') {
return \TemplateLoader::getPath($strTemplate, $strFormat, $strCustom);
}
}
return \TemplateLoader::getPath($strTemplate, $strFormat);
}
// Contao 2.X from here on.
$strKey = $strFilename = $strTemplate . '.' . $strFormat;
// Check for a theme folder
if (TL_MODE == 'FE') {
global $objPage;
$strTemplateGroup = str_replace(array('../', 'templates/'), '', $objPage->templateGroup);
if ($strTemplateGroup != '') {
$strKey = $strTemplateGroup . '/' . $strKey;
}
}
$objCache = FileCache::getInstance('templates');
// Try to load the template path from the cache
if (!$GLOBALS['TL_CONFIG']['debugMode'] && isset($objCache->{$strKey})) {
if (file_exists(TL_ROOT . '/' . $objCache->{$strKey})) {
return TL_ROOT . '/' . $objCache->{$strKey};
} else {
unset($objCache->{$strKey});
}
}
$strPath = TL_ROOT . '/templates';
// Check the theme folder first
if (TL_MODE == 'FE' && $strTemplateGroup != '') {
$strFile = $strPath . '/' . $strTemplateGroup . '/' . $strFilename;
if (file_exists($strFile)) {
$objCache->{$strKey} = 'templates/' . $strTemplateGroup . '/' . $strFilename;
return $strFile;
}
}
// Then check the global templates directory
$strFile = $strPath . '/' . $strFilename;
if (file_exists($strFile)) {
$objCache->{$strKey} = 'templates/' . $strFilename;
return $strFile;
}
// At last browse all module folders in reverse order
foreach (array_reverse(Config::getInstance()->getActiveModules()) as $strModule) {
$strFile = TL_ROOT . '/system/modules/' . $strModule . '/templates/' . $strFilename;
if (file_exists($strFile)) {
$objCache->{$strKey} = 'system/modules/' . $strModule . '/templates/' . $strFilename;
return $strFile;
}
}
if ($blnFailIfNotFound) {
throw new Exception('Could not find template file "' . $strFilename . '"');
}
}
/**
* Return true if a class file exists
* @param string
* @param boolean
*/
protected function classFileExists($strClass, $blnNoCache = false)
{
if ($strClass == '') {
return false;
}
// Try to load from cache
if (!$blnNoCache) {
// Handle multiple requests for the same class
if (isset($this->arrCache[$strClass])) {
return $this->arrCache[$strClass];
}
$objCache = FileCache::getInstance('classes');
// Check the file cache
if (isset($objCache->{$strClass})) {
$this->arrCache[$strClass] = $objCache->{$strClass};
return $objCache->{$strClass};
} else {
unset($objCache->{$strClass});
}
}
$this->import('Config');
// see ticket #152
$this->arrCache[$strClass] = false;
// Browse all modules
foreach ($this->Config->getActiveModules() as $strModule) {
$strFile = 'system/modules/' . $strModule . '/' . $strClass . '.php';
if (file_exists(TL_ROOT . '/' . $strFile)) {
// Also store the result in the autoloader cache, so the
// function does not have to browse the module folders again
$objAutoload = FileCache::getInstance('autoload');
$objAutoload->{$strClass} = $strFile;
$this->arrCache[$strClass] = true;
break;
}
}
// Remember the result
if (!$blnNoCache) {
$objCache->{$strClass} = $this->arrCache[$strClass];
}
return $this->arrCache[$strClass];
}
scanTwigCacheDirectories('system/cache/twig');
}
} else {
/**
* Maintenance
*/
$GLOBALS['TL_MAINTENANCE'][] = 'PurgeTwigCache';
}
if (!file_exists(TL_ROOT . '/system/cache/twig')) {
mkdir(TL_ROOT . '/system/cache/twig', 0777, true);
}
/**
* Content elements
*/
$GLOBALS['TL_CTE']['texts']['twig'] = 'ContentTwig';
/**
* Front end modules
*/
$GLOBALS['FE_MOD']['miscellaneous']['twig'] = 'ModuleTwig';
if (version_compare(VERSION, '3', '<')) {
spl_autoload_unregister('__autoload');
require_once TL_ROOT . '/system/modules/twig/classes/vendor/autoload.php';
spl_autoload_register('__autoload');
$classes = array('TwigHybrid', 'ContaoTwig', 'TwigModule', 'ModuleTwig', 'ContaoTwigExtension', 'ContaoTwigRefererAccessObject', 'ContaoTwigEnvironmentAccessObject', 'TwigFrontendTemplate', 'TwigBackendModule', 'PurgeTwigCache', 'TwigHelper', 'ContaoTwigGlobalAccessObject', 'TwigTemplate', 'TwigBackendTemplate', 'TwigCustomPagination', 'TwigSimpleHybrid', 'TwigPagination', 'ContentTwig', 'TwigContentElement');
$cache = FileCache::getInstance('classes');
foreach ($classes as $class) {
if (!$cache->{$class}) {
$cache->{$class} = true;
}
}
}
/**
* Return true if a class file exists
* @param string
* @param boolean
* @return boolean
*/
protected function classFileExists($strClass, $blnNoCache=false)
{
if ($strClass == '')
{
return false;
}
$this->import('Cache');
$strKey = __METHOD__ . '-' . $strClass;
// Try to load from cache
if (!$blnNoCache)
{
// Handle multiple requests for the same class
if (isset($this->Cache->$strKey))
{
return $this->Cache->$strKey;
}
$objCache = FileCache::getInstance('classes');
// Check the file cache
if (!$GLOBALS['TL_CONFIG']['debugMode'] && isset($objCache->$strClass))
{
$this->Cache->$strKey = $objCache->$strClass;
return $objCache->$strClass;
}
}
$this->import('Config'); // see ticket #152
$this->Cache->$strKey = false;
// Browse all modules
foreach ($this->Config->getActiveModules() as $strModule)
{
$strFile = 'system/modules/' . $strModule . '/' . $strClass . '.php';
if (file_exists(TL_ROOT . '/' . $strFile))
{
// Also store the result in the autoloader cache, so the
// function does not have to browse the module folders again
$objAutoload = FileCache::getInstance('autoload');
$objAutoload->$strClass = $strFile;
$this->Cache->$strKey = true;
break;
}
}
// Remember the result
if (!$blnNoCache)
{
$objCache->$strClass = $this->Cache->$strKey;
}
return $this->Cache->$strKey;
}
