[239] | 1 | <?php
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| 2 |
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| 3 | /** This file is part of KCFinder project
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| 4 | *
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| 5 | * @desc Directory helper class
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| 6 | * @package KCFinder
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| 7 | * @version 2.51
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| 8 | * @author Pavel Tzonkov <pavelc@users.sourceforge.net>
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| 9 | * @copyright 2010, 2011 KCFinder Project
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| 10 | * @license http://www.opensource.org/licenses/gpl-2.0.php GPLv2
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| 11 | * @license http://www.opensource.org/licenses/lgpl-2.1.php LGPLv2
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| 12 | * @link http://kcfinder.sunhater.com
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| 13 | */
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| 14 |
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| 15 | class dir {
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| 16 |
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| 17 | /** Checks if the given directory is really writable. The standard PHP
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| 18 | * function is_writable() does not work properly on Windows servers
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| 19 | * @param string $dir
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| 20 | * @return bool */
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| 21 |
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| 22 | static function isWritable($dir) {
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| 23 | $dir = path::normalize($dir);
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| 24 | if (!is_dir($dir))
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| 25 | return false;
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| 26 | $i = 0;
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| 27 | do {
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| 28 | $file = "$dir/is_writable_" . md5($i++);
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| 29 | } while (file_exists($file));
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| 30 | if (!@touch($file))
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| 31 | return false;
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| 32 | unlink($file);
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| 33 | return true;
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| 34 | }
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| 35 |
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| 36 | /** Recursively delete the given directory. Returns TRUE on success.
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| 37 | * If $firstFailExit parameter is true (default), the method returns the
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| 38 | * path to the first failed file or directory which cannot be deleted.
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| 39 | * If $firstFailExit is false, the method returns an array with failed
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| 40 | * files and directories which cannot be deleted. The third parameter
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| 41 | * $failed is used for internal use only.
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| 42 | * @param string $dir
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| 43 | * @param bool $firstFailExit
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| 44 | * @param array $failed
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| 45 | * @return mixed */
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| 46 |
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| 47 | static function prune($dir, $firstFailExit=true, array $failed=null) {
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| 48 | if ($failed === null) $failed = array();
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| 49 | $files = self::content($dir);
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| 50 | if ($files === false) {
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| 51 | if ($firstFailExit)
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| 52 | return $dir;
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| 53 | $failed[] = $dir;
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| 54 | return $failed;
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| 55 | }
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| 56 |
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| 57 | foreach ($files as $file) {
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| 58 | if (is_dir($file)) {
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| 59 | $failed_in = self::prune($file, $firstFailExit, $failed);
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| 60 | if ($failed_in !== true) {
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| 61 | if ($firstFailExit)
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| 62 | return $failed_in;
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| 63 | if (is_array($failed_in))
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| 64 | $failed = array_merge($failed, $failed_in);
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| 65 | else
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| 66 | $failed[] = $failed_in;
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| 67 | }
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| 68 | } elseif (!@unlink($file)) {
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| 69 | if ($firstFailExit)
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| 70 | return $file;
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| 71 | $failed[] = $file;
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| 72 | }
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| 73 | }
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| 74 |
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| 75 | if (!@rmdir($dir)) {
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| 76 | if ($firstFailExit)
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| 77 | return $dir;
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| 78 | $failed[] = $dir;
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| 79 | }
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| 80 |
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| 81 | return count($failed) ? $failed : true;
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| 82 | }
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| 83 |
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| 84 | /** Get the content of the given directory. Returns an array with filenames
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| 85 | * or FALSE on failure
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| 86 | * @param string $dir
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| 87 | * @param array $options
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| 88 | * @return mixed */
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| 89 |
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| 90 | static function content($dir, array $options=null) {
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| 91 |
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| 92 | $defaultOptions = array(
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| 93 | 'types' => "all", // Allowed: "all" or possible return values
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| 94 | // of filetype(), or an array with them
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| 95 | 'addPath' => true, // Whether to add directory path to filenames
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| 96 | 'pattern' => '/./', // Regular expression pattern for filename
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| 97 | 'followLinks' => true
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| 98 | );
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| 99 |
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| 100 | if (!is_dir($dir) || !is_readable($dir))
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| 101 | return false;
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| 102 |
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| 103 | if (strtoupper(substr(PHP_OS, 0, 3)) == "WIN")
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| 104 | $dir = str_replace("\\", "/", $dir);
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| 105 | $dir = rtrim($dir, "/");
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| 106 |
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| 107 | $dh = @opendir($dir);
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| 108 | if ($dh === false)
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| 109 | return false;
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| 110 |
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| 111 | if ($options === null)
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| 112 | $options = $defaultOptions;
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| 113 |
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| 114 | foreach ($defaultOptions as $key => $val)
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| 115 | if (!isset($options[$key]))
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| 116 | $options[$key] = $val;
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| 117 |
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| 118 | $files = array();
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| 119 | while (($file = @readdir($dh)) !== false) {
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| 120 | $type = filetype("$dir/$file");
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| 121 |
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| 122 | if ($options['followLinks'] && ($type === "link")) {
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| 123 | $lfile = "$dir/$file";
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| 124 | do {
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| 125 | $ldir = dirname($lfile);
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| 126 | $lfile = @readlink($lfile);
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| 127 | if (substr($lfile, 0, 1) != "/")
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| 128 | $lfile = "$ldir/$lfile";
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| 129 | $type = filetype($lfile);
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| 130 | } while ($type == "link");
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| 131 | }
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| 132 |
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| 133 | if ((($type === "dir") && (($file == ".") || ($file == ".."))) ||
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| 134 | !preg_match($options['pattern'], $file)
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| 135 | )
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| 136 | continue;
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| 137 |
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| 138 | if (($options['types'] === "all") || ($type === $options['types']) ||
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| 139 | ((is_array($options['types'])) && in_array($type, $options['types']))
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| 140 | )
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| 141 | $files[] = $options['addPath'] ? "$dir/$file" : $file;
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| 142 | }
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| 143 | closedir($dh);
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| 144 | usort($files, "dir::fileSort");
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| 145 | return $files;
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| 146 | }
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| 147 |
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| 148 | static function fileSort($a, $b) {
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| 149 | if (function_exists("mb_strtolower")) {
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| 150 | $a = mb_strtolower($a);
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| 151 | $b = mb_strtolower($b);
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| 152 | } else {
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| 153 | $a = strtolower($a);
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| 154 | $b = strtolower($b);
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| 155 | }
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| 156 | if ($a == $b) return 0;
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| 157 | return ($a < $b) ? -1 : 1;
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| 158 | }
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| 159 | }
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| 160 |
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| 161 | ?> |
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