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<?php
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/**
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* AccessFileHelper.php
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*
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* @category Core
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* @package Core_Routing
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* @subpackage Accessfiles
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* @copyright Manuela v.d.Decken <manuela@isteam.de>
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* @author Manuela v.d.Decken <manuela@isteam.de>
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* @license http://www.gnu.org/licenses/gpl.html GPL License
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* @version 0.0.1
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* @revision $Revision: $
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* @link $HeadURL: $
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* @lastmodified $Date: $
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* @since File available since 01.08.2013
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* @description this class provides some helper methodes to handle access files
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*/
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if (class_exists('AccesFile')) {;}
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class AccessFileHelper {
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/**
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* do not delete start directory of deltree
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*/
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const DEL_ROOT_PRESERVE = 0;
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/**
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* delete start directory of deltree
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*/
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const DEL_ROOT_DELETE = 1;
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/**
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* clear logs
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*/
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const LOG_CLEAR = true;
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/**
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* preserve logs
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*/
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const LOG_PRESERVE = false;
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/**
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* to store the last delTree log
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*/
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static $aDelTreeLog = array();
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/**
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* private constructor to deny instantiating
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*/
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private function __construct() {
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;
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}
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/**
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* Test if file is an access file
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* @param string $sFileName qualified path/file
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* @return boolean
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* @description test given file for typical accessfile signature
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*/
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static public function isAccessFile($sFileName)
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{
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if (!is_readable($sFileName)) { throw new AccessFileInvalidFilePathException('invalid filename ['.$sFileName.']'); }
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$bRetval = false;
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if (($sFile = file_get_contents($sFileName)) !== false) {
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$sPattern = '/^\s*?<\?php.*?\$i?page_?id\s*=\s*[0-9]+;.*?(?:require|include)'
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. '(?:_once)?\s*\(\s*\'.*?index\.php\'\s?\);/siU';
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$bRetval = (bool) preg_match($sPattern, $sFile);
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unset($sFile);
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}
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return $bRetval;
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}
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/**
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* Delete all contents of basedir, but not the basedir itself
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* @param string $sRootDir the content of which should be deleted
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* @param integer $iMode the mode can be set to self::DEL_ROOT_PRESERVE(default) or self::DEL_ROOT_DELETE
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* @return boolean false if a file or directory can't be deleted
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*/
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static public function delTree($sRootDir, $iMode = self::DEL_ROOT_PRESERVE)
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{
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// check if root dir is inside the installation and is writeable
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$oReg = WbAdaptor::getInstance();
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self::$aDelTreeLog = array();
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$bResult = true;
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if (!is_writeable($sRootDir)) {
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self::$aDelTreeLog[] = 'insufficient rights or directory not empty in : '.str_replace($oReg->AppPath, '', $sRootDir);
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return false;
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}
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$oIterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($sRootDir), RecursiveIteratorIterator::CHILD_FIRST);
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foreach ($oIterator as $oPath) {
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$sPath = rtrim(str_replace('\\', '/', $oPath->__toString()), '/');
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if ($oPath->isDir() && !preg_match('/\.$/s', $sPath)) {
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// proceed directories
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if (!rmdir($sPath)) {
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$bResult = false;
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self::$aDelTreeLog[] = 'insufficient rights or directory not empty in : '.str_replace($oReg->AppPath, '', $sPath);
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} else {
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self::$aDelTreeLog[] = 'Directory successful removed : '.str_replace($oReg->AppPath, '', $sPath);
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}
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} elseif ($oPath->isFile()) {
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// proceed files
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if (!unlink($sPath)) {
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$bResult = false;
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self::$aDelTreeLog[] = 'insufficient rights or directory not empty in : '.str_replace($oReg->AppPath, '', $sPath);
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} else {
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self::$aDelTreeLog[] = 'File successful deleted : '.str_replace($oReg->AppPath, '', $sPath);
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}
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}
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}
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if (($iMode & self::DEL_ROOT_DELETE)) {
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if ($bResult) { // if there was no error before
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if (rmdir($sRootDir)) {
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self::$aDelTreeLog[] = 'Directory successful removed : '.str_replace($oReg->AppPath, '', $sRootDir);
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return $bResult;
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}
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}
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self::$aDelTreeLog[] = 'insufficient rights or directory not empty in : '.str_replace($oReg->AppPath, '', $sRootDir);
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}
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return $bResult;
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}
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/**
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* returns the log of the last delTree request
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* @param bool $bClearLog TRUE clears the log after request, FALSE preserve the log
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* @return array
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*/
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static public function getDelTreeLog($bClearLog = self::LOG_CLEAR)
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{
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$aRetval = self::$aDelTreeLog;
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if($bClearLog) { self::$aDelTreeLog = array(); }
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return $aRetval;
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}
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/* *** following methods still are in developing right now! Do not use it! ************ */
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/**
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* isPathInsideApplication
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* @param string $sRootPath full base path<br />
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* example1-a: '/www/htdocs/subdir/'
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* example2-a: 'c://www/htdocs/subdir/'
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* example3-a: 'http://user:pass@isteam.de:123/www/htdocs/subdir/'
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* @param string $sFullPath full path to test<br />
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* example1-b: '/www/htdocs/subdir/targetdir/../testfile.php'
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* example2-b: 'c://www/htdocs/subdir/targetdir/../testfile.php'
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* example3-b: 'http://user:pass@isteam.de:123/www/htdocs/subdir/targetdir/../testfile.php'
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* @return type
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*/
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static public function isRootPartOfPath($sRootPath, $sFullPath)
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{
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$sRootPath = self::getRealPath($sRootPath);
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$sFullPath = self::getRealPath($sFullPath);
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$sRetval = (preg_match('/^'.preg_quote($sRootPath, '/').'/', $sFullPath) ? $sFullPath : null );
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return $sRetval;;
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}
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static public function getRealPath($sPath)
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{
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$iCount = 0;
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$aResultPath = array();
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$sPath = str_replace(array('\\', '/./'), array('/', '/'), $sPath);
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if(preg_match('/^\/?\.\//', $sPath)) {
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$sPath = str_replace('\\', '/', getcwd()).'/'.preg_replace('/^\/?\.\//', '', $sPath);
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}
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$sPattern = '/((?:^[a-z]?\:\/+)|(?:^.*?\:\/\/.*?\/)|(?:^\/+))[^\/].*$/is';
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// extract host/root - part from path save and then remove it from path
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$sPrefix = preg_replace($sPattern, '\1', $sPath);
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$sPath = preg_replace('/^'.preg_quote($sPrefix, '/').'/', '', $sPath);
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// replace any tripple or more dots by doubble dots and split the path at '/' into an array.
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// save number of replaced .. in $iCount and add somme buffer elements
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$aTestPath = array_merge(($iCount ? array_fill(0, $iCount * 2, '###') : array()),
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explode('/', preg_replace(array('/\.{2,}/s', '/./'), array('..', '/'), $sPath, -1, $iCount))
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);
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foreach ($aTestPath as $sPart) {
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switch ($sPart) {
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case '.': // skip part
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continue;
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break;
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case '..': // step back
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array_pop($aResultPath);
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break;
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default: // take part
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$aResultPath[] = $sPart;
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break;
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}
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}
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while($aResultPath[0] == '###') {
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array_shift($aResultPath);
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}
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$sResultPath = $sPrefix.implode('/', $aResultPath);
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return $sResultPath;
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}
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} // end of class AccessFileHelper
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