TYPO3 Core

if (t3lib_div::verifyFilenameAgainstDenyPattern($filename)) { // Check for allowed files

if (@is_file($filename) && filesize($filename) < 100000) { // Max. 100 KB include files!

// check for includes in included text

$includedFiles[] = $filename;

$included_text = self::checkIncludeLines(t3lib_div::getUrl($filename), $cycle_counter + 1, $returnFiles);

// If the method also has to return all included files, merge currently included

// files with files included by recursively calling itself

if ($returnFiles && is_array($included_text)) {

$includedFiles = array_merge($includedFiles, $included_text['files']);

$included_text = $included_text['typoscript'];

}

$newString .= $included_text . LF;

} else {

t3lib_div::sysLog('File "' . $filename . '" was not included since it is not allowed due to fileDenyPattern', 'Core', 2);