58 lines
1.4 KiB
PHP
58 lines
1.4 KiB
PHP
<?php
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/**
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* This file is part of the Froxlor project.
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* Copyright (c) 2010 the Froxlor Team (see authors).
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*
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* For the full copyright and license information, please view the COPYING
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* file that was distributed with this source code. You can also view the
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* COPYING file online at http://files.froxlor.org/misc/COPYING.txt
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*
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* @copyright (c) the authors
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* @author Froxlor team <team@froxlor.org> (2010-)
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* @license GPLv2 http://files.froxlor.org/misc/COPYING.txt
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* @package Functions
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*
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*/
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/**
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* set the immutable flag for a file
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*
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* @param string $filename the file to set the flag for
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*
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* @return boolean
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*/
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function setImmutable($filename = null) {
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safe_exec(_getImmutableFunction(false).escapeshellarg($filename));
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}
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/**
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* removes the immutable flag for a file
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*
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* @param string $filename the file to set the flag for
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*
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* @return boolean
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*/
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function removeImmutable($filename = null) {
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safe_exec(_getImmutableFunction(true).escapeshellarg($filename));
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}
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/**
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* internal function to check whether
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* to use chattr (Linux) or chflags (FreeBSD)
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*
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* @param boolean $remove whether to use +i|schg (false) or -i|noschg (true)
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*
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* @return string functionname + parameter (not the file)
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*/
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function _getImmutableFunction($remove = false) {
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if (isFreeBSD()) {
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// FreeBSD style
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return 'chflags '.(($remove === true) ? 'noschg ' : 'schg ');
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} else {
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// Linux style
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return 'chattr '.(($remove === true) ? '-i ' : '+i ');
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}
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}
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