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<?php |
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/** |
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* |
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* This file is part of phpFastCache. |
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* |
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* @license MIT License (MIT) |
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* |
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* For full copyright and license information, please see the docs/CREDITS.txt file. |
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* |
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* @author Khoa Bui (khoaofgod) <[email protected]> http://www.phpfastcache.com |
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* @author Georges.L (Geolim4) <[email protected]> |
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* |
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*/ |
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namespace phpFastCache\Util; |
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use RecursiveDirectoryIterator; |
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use RecursiveIteratorIterator; |
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use SplFileInfo; |
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/** |
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* Class Directory |
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* @package phpFastCache\Util |
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*/ |
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class Directory |
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{ |
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/** |
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* Get the directory size |
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* @param string $directory |
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* @param bool $includeDirAllocSize |
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* @return integer |
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*/ |
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public static function dirSize($directory, $includeDirAllocSize = false) |
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{ |
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$size = 0; |
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foreach (new RecursiveIteratorIterator(new RecursiveDirectoryIterator($directory)) as $file) { |
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/** |
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* @var \SplFileInfo $file |
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*/ |
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if ($file->isFile()) { |
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$size += filesize($file->getRealPath()); |
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} else if ($includeDirAllocSize) { |
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$size += $file->getSize(); |
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} |
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} |
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return $size; |
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} |
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/** |
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* @param string $path |
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* @return int |
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*/ |
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public static function getFileCount($path) |
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{ |
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$count = 0; |
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$objects = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path), \RecursiveIteratorIterator::SELF_FIRST); |
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foreach ($objects as $object) { |
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/** |
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* @var \SplFileInfo $object |
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*/ |
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if ($object->isFile()) { |
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$count++; |
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} |
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} |
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return $count; |
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} |
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/** |
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* Recursively delete a directory and all of it's contents - e.g.the equivalent of `rm -r` on the command-line. |
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* Consistent with `rmdir()` and `unlink()`, an E_WARNING level error will be generated on failure. |
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* |
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* @param string $source absolute path to directory or file to delete. |
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* @param bool $removeOnlyChildren set to true will only remove content inside directory. |
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* |
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* @return bool true on success; false on failure |
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*/ |
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public static function rrmdir($source, $removeOnlyChildren = false) |
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{ |
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if (empty($source) || file_exists($source) === false) { |
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return false; |
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} |
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if (is_file($source) || is_link($source)) { |
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return unlink($source); |
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} |
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$files = new RecursiveIteratorIterator |
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( |
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new RecursiveDirectoryIterator($source, RecursiveDirectoryIterator::SKIP_DOTS), |
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RecursiveIteratorIterator::CHILD_FIRST |
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); |
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foreach ($files as $fileinfo) { |
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/** |
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* @var SplFileInfo $fileinfo |
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*/ |
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if ($fileinfo->isDir()) { |
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if (self::rrmdir($fileinfo->getRealPath()) === false) { |
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return false; |
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} |
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} else if (unlink($fileinfo->getRealPath()) === false) { |
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return false; |
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} |
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} |
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if ($removeOnlyChildren === false) { |
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return rmdir($source); |
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} |
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return true; |
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} |
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/** |
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* Alias of realpath() but work |
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* on non-existing files |
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* |
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* @param $path |
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* @return string |
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*/ |
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public static function getAbsolutePath($path) |
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{ |
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$path = str_replace(['/', '\\'], DIRECTORY_SEPARATOR, $path); |
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$parts = array_filter(explode(DIRECTORY_SEPARATOR, $path), 'strlen'); |
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$absolutes = []; |
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foreach ($parts as $part) { |
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if ('.' === $part) { |
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continue; |
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} |
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if ('..' === $part) { |
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array_pop($absolutes); |
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} else { |
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$absolutes[] = $part; |
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} |
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} |
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return implode(DIRECTORY_SEPARATOR, $absolutes); |
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} |
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} |
$sourcecan contain request data and is used in file manipulation context(s) leading to a potential security vulnerability.1 path for user data to reach this point
HTTP_HOSTfrom$_SERVER,and$_SERVER['HTTP_HOST']is passed through str_replace(), andstr_replace(':', '_', $_SERVER['HTTP_HOST'])is passed through strtolower(), andstrtolower(str_replace(':', '_', $_SERVER['HTTP_HOST']))is passed through preg_replace(), and$securityKeyis assignedin src/phpFastCache/Core/Pool/IO/PathSeekerTrait.php on line 60
in vendor/src/phpFastCache/Core/Pool/IO/PathSeekerTrait.php on line 194
$securityKeyis assignedin src/phpFastCache/Core/Pool/IO/PathSeekerTrait.php on line 70
$full_pathis assignedin src/phpFastCache/Core/Pool/IO/PathSeekerTrait.php on line 87
$full_pathis passed through realpath()in src/phpFastCache/Core/Pool/IO/PathSeekerTrait.php on line 104
$this->getPath(true)is passed to Directory::rrmdir()in src/phpFastCache/Drivers/Files/Driver.php on line 135
General Strategies to prevent injection
In general, it is advisable to prevent any user-data to reach this point. This can be done by white-listing certain values:
if ( ! in_array($value, array('this-is-allowed', 'and-this-too'), true)) { throw new \InvalidArgumentException('This input is not allowed.'); }For numeric data, we recommend to explicitly cast the data: