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<?php
/**
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
* @link https://cakephp.org CakePHP(tm) Project
* @since 0.2.9
* @license https://opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\Filesystem;
use DirectoryIterator;
use Exception;
use InvalidArgumentException;
use RecursiveDirectoryIterator;
use RecursiveIteratorIterator;
/**
* Folder structure browser, lists folders and files.
* Provides an Object interface for Common directory related tasks.
*
* @link https://book.cakephp.org/3.0/en/core-libraries/file-folder.html#folder-api
*/
class Folder
{
/**
* Default scheme for Folder::copy
* Recursively merges subfolders with the same name
*
* @var string
*/
const MERGE = 'merge';
/**
* Overwrite scheme for Folder::copy
* subfolders with the same name will be replaced
*
* @var string
*/
const OVERWRITE = 'overwrite';
/**
* Skip scheme for Folder::copy
* if a subfolder with the same name exists it will be skipped
*
* @var string
*/
const SKIP = 'skip';
/**
* Sort mode by name
*
* @var string
*/
const SORT_NAME = 'name';
/**
* Sort mode by time
*
* @var string
*/
const SORT_TIME = 'time';
/**
* Path to Folder.
*
* @var string
*/
public $path;
/**
* Sortedness. Whether or not list results
* should be sorted by name.
*
* @var bool
*/
public $sort = false;
/**
* Mode to be used on create. Does nothing on windows platforms.
*
* @var int
* https://book.cakephp.org/3.0/en/core-libraries/file-folder.html#Cake\Filesystem\Folder::$mode
*/
public $mode = 0755;
/**
* Functions array to be called depending on the sort type chosen.
*/
protected $_fsorts = [
self::SORT_NAME => 'getPathname',
self::SORT_TIME => 'getCTime'
];
/**
* Holds messages from last method.
*
* @var array
*/
protected $_messages = [];
/**
* Holds errors from last method.
*
* @var array
*/
protected $_errors = [];
/**
* Holds array of complete directory paths.
*
* @var array
*/
protected $_directories;
/**
* Holds array of complete file paths.
*
* @var array
*/
protected $_files;
/**
* Constructor.
*
* @param string|null $path Path to folder
* @param bool $create Create folder if not found
* @param int|false $mode Mode (CHMOD) to apply to created folder, false to ignore
*/
public function __construct($path = null, $create = false, $mode = false)
{
if (empty($path)) {
$path = TMP;
}
if ($mode) {
$this->mode = $mode;
}
if (!file_exists($path) && $create === true) {
$this->create($path, $this->mode);
}
if (!Folder::isAbsolute($path)) {
$path = realpath($path);
}
if (!empty($path)) {
$this->cd($path);
}
}
/**
* Return current path.
*
* @return string Current path
*/
public function pwd()
{
return $this->path;
}
/**
* Change directory to $path.
*
* @param string $path Path to the directory to change to
* @return string|bool The new path. Returns false on failure
*/
public function cd($path)
{
$path = $this->realpath($path);
if ($path !== false && is_dir($path)) {
return $this->path = $path;
}
return false;
}
/**
* Returns an array of the contents of the current directory.
* The returned array holds two arrays: One of directories and one of files.
*
* @param string|bool $sort Whether you want the results sorted, set this and the sort property
* to false to get unsorted results.
* @param array|bool $exceptions Either an array or boolean true will not grab dot files
* @param bool $fullPath True returns the full path
* @return array Contents of current directory as an array, an empty array on failure
*/
public function read($sort = self::SORT_NAME, $exceptions = false, $fullPath = false)
{
$dirs = $files = [];
if (!$this->pwd()) {
return [$dirs, $files];
}
if (is_array($exceptions)) {
$exceptions = array_flip($exceptions);
}
$skipHidden = isset($exceptions['.']) || $exceptions === true;
try {
$iterator = new DirectoryIterator($this->path);
} catch (Exception $e) {
return [$dirs, $files];
}
if (!is_bool($sort) && isset($this->_fsorts[$sort])) {
$methodName = $this->_fsorts[$sort];
} else {
$methodName = $this->_fsorts[self::SORT_NAME];
}
foreach ($iterator as $item) {
if ($item->isDot()) {
continue;
}
$name = $item->getFilename();
if ($skipHidden && $name[0] === '.' || isset($exceptions[$name])) {
continue;
}
if ($fullPath) {
$name = $item->getPathname();
}
if ($item->isDir()) {
$dirs[$item->{$methodName}()][] = $name;
} else {
$files[$item->{$methodName}()][] = $name;
}
}
if ($sort || $this->sort) {
ksort($dirs);
ksort($files);
}
if ($dirs) {
$dirs = array_merge(...array_values($dirs));
}
if ($files) {
$files = array_merge(...array_values($files));
}
return [$dirs, $files];
}
/**
* Returns an array of all matching files in current directory.
*
* @param string $regexpPattern Preg_match pattern (Defaults to: .*)
* @param bool $sort Whether results should be sorted.
* @return array Files that match given pattern
*/
public function find($regexpPattern = '.*', $sort = false)
{
list(, $files) = $this->read($sort);
return array_values(preg_grep('/^' . $regexpPattern . '$/i', $files));
}
/**
* Returns an array of all matching files in and below current directory.
*
* @param string $pattern Preg_match pattern (Defaults to: .*)
* @param bool $sort Whether results should be sorted.
* @return array Files matching $pattern
*/
public function findRecursive($pattern = '.*', $sort = false)
{
if (!$this->pwd()) {
return [];
}
$startsOn = $this->path;
$out = $this->_findRecursive($pattern, $sort);
$this->cd($startsOn);
return $out;
}
/**
* Private helper function for findRecursive.
*
* @param string $pattern Pattern to match against
* @param bool $sort Whether results should be sorted.
* @return array Files matching pattern
*/
protected function _findRecursive($pattern, $sort = false)
{
list($dirs, $files) = $this->read($sort);
$found = [];
foreach ($files as $file) {
if (preg_match('/^' . $pattern . '$/i', $file)) {
$found[] = Folder::addPathElement($this->path, $file);
}
}
$start = $this->path;
foreach ($dirs as $dir) {
$this->cd(Folder::addPathElement($start, $dir));
$found = array_merge($found, $this->findRecursive($pattern, $sort));
}
return $found;
}
/**
* Returns true if given $path is a Windows path.
*
* @param string $path Path to check
* @return bool true if windows path, false otherwise
*/
public static function isWindowsPath($path)
{
return (preg_match('/^[A-Z]:\\\\/i', $path) || substr($path, 0, 2) === '\\\\');
}
/**
* Returns true if given $path is an absolute path.
*
* @param string $path Path to check
* @return bool true if path is absolute.
*/
public static function isAbsolute($path)
{
if (empty($path)) {
return false;
}
return $path[0] === '/' ||
preg_match('/^[A-Z]:\\\\/i', $path) ||
substr($path, 0, 2) === '\\\\' ||
self::isRegisteredStreamWrapper($path);
}
/**
* Returns true if given $path is a registered stream wrapper.
*
* @param string $path Path to check
* @return bool True if path is registered stream wrapper.
*/
public static function isRegisteredStreamWrapper($path)
{
return preg_match('/^[^:\/\/]+?(?=:\/\/)/i', $path, $matches) &&
in_array($matches[0], stream_get_wrappers());
}
/**
* Returns a correct set of slashes for given $path. (\\ for Windows paths and / for other paths.)
*
* @param string $path Path to check
* @return string Set of slashes ("\\" or "/")
*/
public static function normalizePath($path)
{
return Folder::correctSlashFor($path);
}
/**
* Returns a correct set of slashes for given $path. (\\ for Windows paths and / for other paths.)
*
* @param string $path Path to check
* @return string Set of slashes ("\\" or "/")
*/
public static function correctSlashFor($path)
{
return Folder::isWindowsPath($path) ? '\\' : '/';
}
/**
* Returns $path with added terminating slash (corrected for Windows or other OS).
*
* @param string $path Path to check
* @return string Path with ending slash
*/
public static function slashTerm($path)
{
if (Folder::isSlashTerm($path)) {
return $path;
}
return $path . Folder::correctSlashFor($path);
}
/**
* Returns $path with $element added, with correct slash in-between.
*
* @param string $path Path
* @param string|array $element Element to add at end of path
* @return string Combined path
*/
public static function addPathElement($path, $element)
{
$element = (array)$element;
array_unshift($element, rtrim($path, DIRECTORY_SEPARATOR));
return implode(DIRECTORY_SEPARATOR, $element);
}
/**
* Returns true if the Folder is in the given Cake path.
*
* @param string $path The path to check.
* @return bool
* @deprecated 3.2.12 This method will be removed in 4.0.0. Use inPath() instead.
*/
public function inCakePath($path = '')
{
deprecationWarning('Folder::inCakePath() is deprecated. Use Folder::inPath() instead.');
$dir = substr(Folder::slashTerm(ROOT), 0, -1);
$newdir = $dir . $path;
return $this->inPath($newdir);
}
/**
* Returns true if the Folder is in the given path.
*
* @param string $path The absolute path to check that the current `pwd()` resides within.
* @param bool $reverse Reverse the search, check if the given `$path` resides within the current `pwd()`.
* @return bool
* @throws \InvalidArgumentException When the given `$path` argument is not an absolute path.
*/
public function inPath($path, $reverse = false)
{
if (!Folder::isAbsolute($path)) {
throw new InvalidArgumentException('The $path argument is expected to be an absolute path.');
}
$dir = Folder::slashTerm($path);
$current = Folder::slashTerm($this->pwd());
if (!$reverse) {
$return = preg_match('/^' . preg_quote($dir, '/') . '(.*)/', $current);
} else {
$return = preg_match('/^' . preg_quote($current, '/') . '(.*)/', $dir);
}
return (bool)$return;
}
/**
* Change the mode on a directory structure recursively. This includes changing the mode on files as well.
*
* @param string $path The path to chmod.
* @param int|bool $mode Octal value, e.g. 0755.
* @param bool $recursive Chmod recursively, set to false to only change the current directory.
* @param array $exceptions Array of files, directories to skip.
* @return bool Success.
*/
public function chmod($path, $mode = false, $recursive = true, array $exceptions = [])
{
if (!$mode) {
$mode = $this->mode;
}
if ($recursive === false && is_dir($path)) {
//@codingStandardsIgnoreStart
if (@chmod($path, intval($mode, 8))) {
//@codingStandardsIgnoreEnd
$this->_messages[] = sprintf('%s changed to %s', $path, $mode);
return true;
}
$this->_errors[] = sprintf('%s NOT changed to %s', $path, $mode);
return false;
}
if (is_dir($path)) {
$paths = $this->tree($path);
foreach ($paths as $type) {
foreach ($type as $fullpath) {
$check = explode(DIRECTORY_SEPARATOR, $fullpath);
$count = count($check);
if (in_array($check[$count - 1], $exceptions)) {
continue;
}
//@codingStandardsIgnoreStart
if (@chmod($fullpath, intval($mode, 8))) {
//@codingStandardsIgnoreEnd
$this->_messages[] = sprintf('%s changed to %s', $fullpath, $mode);
} else {
$this->_errors[] = sprintf('%s NOT changed to %s', $fullpath, $mode);
}
}
}
if (empty($this->_errors)) {
return true;
}
}
return false;
}
/**
* Returns an array of subdirectories for the provided or current path.
*
* @param string|null $path The directory path to get subdirectories for.
* @param bool $fullPath Whether to return the full path or only the directory name.
* @return array Array of subdirectories for the provided or current path.
*/
public function subdirectories($path = null, $fullPath = true)
{
if (!$path) {
$path = $this->path;
}
$subdirectories = [];
try {
$iterator = new DirectoryIterator($path);
} catch (Exception $e) {
return [];
}
foreach ($iterator as $item) {
if (!$item->isDir() || $item->isDot()) {
continue;
}
$subdirectories[] = $fullPath ? $item->getRealPath() : $item->getFilename();
}
return $subdirectories;
}
/**
* Returns an array of nested directories and files in each directory
*
* @param string|null $path the directory path to build the tree from
* @param array|bool $exceptions Either an array of files/folder to exclude
* or boolean true to not grab dot files/folders
* @param string|null $type either 'file' or 'dir'. Null returns both files and directories
* @return array Array of nested directories and files in each directory
*/
public function tree($path = null, $exceptions = false, $type = null)
{
if (!$path) {
$path = $this->path;
}
$files = [];
$directories = [$path];
if (is_array($exceptions)) {
$exceptions = array_flip($exceptions);
}
$skipHidden = false;
if ($exceptions === true) {
$skipHidden = true;
} elseif (isset($exceptions['.'])) {
$skipHidden = true;
unset($exceptions['.']);
}
try {
$directory = new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::KEY_AS_PATHNAME | RecursiveDirectoryIterator::CURRENT_AS_SELF);
$iterator = new RecursiveIteratorIterator($directory, RecursiveIteratorIterator::SELF_FIRST);
} catch (Exception $e) {
if ($type === null) {
return [[], []];
}
return [];
}
foreach ($iterator as $itemPath => $fsIterator) {
if ($skipHidden) {
$subPathName = $fsIterator->getSubPathname();
if ($subPathName{0} === '.' || strpos($subPathName, DIRECTORY_SEPARATOR . '.') !== false) {
continue;
}
}
$item = $fsIterator->current();
if (!empty($exceptions) && isset($exceptions[$item->getFilename()])) {
continue;
}
if ($item->isFile()) {
$files[] = $itemPath;
} elseif ($item->isDir() && !$item->isDot()) {
$directories[] = $itemPath;
}
}
if ($type === null) {
return [$directories, $files];
}
if ($type === 'dir') {
return $directories;
}
return $files;
}
/**
* Create a directory structure recursively.
*
* Can be used to create deep path structures like `/foo/bar/baz/shoe/horn`
*
* @param string $pathname The directory structure to create. Either an absolute or relative
* path. If the path is relative and exists in the process' cwd it will not be created.
* Otherwise relative paths will be prefixed with the current pwd().
* @param int|bool $mode octal value 0755
* @return bool Returns TRUE on success, FALSE on failure
*/
public function create($pathname, $mode = false)
{
if (is_dir($pathname) || empty($pathname)) {
return true;
}
if (!self::isAbsolute($pathname)) {
$pathname = self::addPathElement($this->pwd(), $pathname);
}
if (!$mode) {
$mode = $this->mode;
}
if (is_file($pathname)) {
$this->_errors[] = sprintf('%s is a file', $pathname);
return false;
}
$pathname = rtrim($pathname, DIRECTORY_SEPARATOR);
$nextPathname = substr($pathname, 0, strrpos($pathname, DIRECTORY_SEPARATOR));
if ($this->create($nextPathname, $mode)) {
if (!file_exists($pathname)) {
$old = umask(0);
if (mkdir($pathname, $mode, true)) {
umask($old);
$this->_messages[] = sprintf('%s created', $pathname);
return true;
}
umask($old);
$this->_errors[] = sprintf('%s NOT created', $pathname);
return false;
}
}
return false;
}
/**
* Returns the size in bytes of this Folder and its contents.
*
* @return int size in bytes of current folder
*/
public function dirsize()
{
$size = 0;
$directory = Folder::slashTerm($this->path);
$stack = [$directory];
$count = count($stack);
for ($i = 0, $j = $count; $i < $j; ++$i) {
if (is_file($stack[$i])) {
$size += filesize($stack[$i]);
} elseif (is_dir($stack[$i])) {
$dir = dir($stack[$i]);
if ($dir) {
while (($entry = $dir->read()) !== false) {
if ($entry === '.' || $entry === '..') {
continue;
}
$add = $stack[$i] . $entry;
if (is_dir($stack[$i] . $entry)) {
$add = Folder::slashTerm($add);
}
$stack[] = $add;
}
$dir->close();
}
}
$j = count($stack);
}
return $size;
}
/**
* Recursively Remove directories if the system allows.
*
* @param string|null $path Path of directory to delete
* @return bool Success
*/
public function delete($path = null)
{
if (!$path) {
$path = $this->pwd();
}
if (!$path) {
return false;
}
$path = Folder::slashTerm($path);
if (is_dir($path)) {
try {
$directory = new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::CURRENT_AS_SELF);
$iterator = new RecursiveIteratorIterator($directory, RecursiveIteratorIterator::CHILD_FIRST);
} catch (Exception $e) {
return false;
}
foreach ($iterator as $item) {
$filePath = $item->getPathname();
if ($item->isFile() || $item->isLink()) {
//@codingStandardsIgnoreStart
if (@unlink($filePath)) {
//@codingStandardsIgnoreEnd
$this->_messages[] = sprintf('%s removed', $filePath);
} else {
$this->_errors[] = sprintf('%s NOT removed', $filePath);
}
} elseif ($item->isDir() && !$item->isDot()) {
//@codingStandardsIgnoreStart
if (@rmdir($filePath)) {
//@codingStandardsIgnoreEnd
$this->_messages[] = sprintf('%s removed', $filePath);
} else {
$this->_errors[] = sprintf('%s NOT removed', $filePath);
return false;
}
}
}
$path = rtrim($path, DIRECTORY_SEPARATOR);
//@codingStandardsIgnoreStart
if (@rmdir($path)) {
//@codingStandardsIgnoreEnd
$this->_messages[] = sprintf('%s removed', $path);
} else {
$this->_errors[] = sprintf('%s NOT removed', $path);
return false;
}
}
return true;
}
/**
* Recursive directory copy.
*
* ### Options
*
* - `to` The directory to copy to.
* - `from` The directory to copy from, this will cause a cd() to occur, changing the results of pwd().
* - `mode` The mode to copy the files/directories with as integer, e.g. 0775.
* - `skip` Files/directories to skip.
* - `scheme` Folder::MERGE, Folder::OVERWRITE, Folder::SKIP
* - `recursive` Whether to copy recursively or not (default: true - recursive)
*
* @param array|string $options Either an array of options (see above) or a string of the destination directory.
* @return bool Success.
*/
public function copy($options)
{
if (!$this->pwd()) {
return false;
}
$to = null;
if (is_string($options)) {
$to = $options;
$options = [];
}
$options += [
'to' => $to,
'from' => $this->path,
'mode' => $this->mode,
'skip' => [],
'scheme' => Folder::MERGE,
'recursive' => true
];
$fromDir = $options['from'];
$toDir = $options['to'];
$mode = $options['mode'];
if (!$this->cd($fromDir)) {
$this->_errors[] = sprintf('%s not found', $fromDir);
return false;
}
if (!is_dir($toDir)) {
$this->create($toDir, $mode);
}
if (!is_writable($toDir)) {
$this->_errors[] = sprintf('%s not writable', $toDir);
return false;
}
$exceptions = array_merge(['.', '..', '.svn'], $options['skip']);
//@codingStandardsIgnoreStart
if ($handle = @opendir($fromDir)) {
//@codingStandardsIgnoreEnd
while (($item = readdir($handle)) !== false) {
$to = Folder::addPathElement($toDir, $item);
if (($options['scheme'] != Folder::SKIP || !is_dir($to)) && !in_array($item, $exceptions)) {
$from = Folder::addPathElement($fromDir, $item);
if (is_file($from) && (!is_file($to) || $options['scheme'] != Folder::SKIP)) {
if (copy($from, $to)) {
chmod($to, intval($mode, 8));
touch($to, filemtime($from));
$this->_messages[] = sprintf('%s copied to %s', $from, $to);
} else {
$this->_errors[] = sprintf('%s NOT copied to %s', $from, $to);
}
}
if (is_dir($from) && file_exists($to) && $options['scheme'] === Folder::OVERWRITE) {
$this->delete($to);
}
if (is_dir($from) && $options['recursive'] === false) {
continue;
}
if (is_dir($from) && !file_exists($to)) {
$old = umask(0);
if (mkdir($to, $mode, true)) {
umask($old);
$old = umask(0);
chmod($to, $mode);
umask($old);
$this->_messages[] = sprintf('%s created', $to);
$options = ['to' => $to, 'from' => $from] + $options;
$this->copy($options);
} else {
$this->_errors[] = sprintf('%s not created', $to);
}
} elseif (is_dir($from) && $options['scheme'] === Folder::MERGE) {
$options = ['to' => $to, 'from' => $from] + $options;
$this->copy($options);
}
}
}
closedir($handle);
} else {
return false;
}
return empty($this->_errors);
}
/**
* Recursive directory move.
*
* ### Options
*
* - `to` The directory to copy to.
* - `from` The directory to copy from, this will cause a cd() to occur, changing the results of pwd().
* - `chmod` The mode to copy the files/directories with.
* - `skip` Files/directories to skip.
* - `scheme` Folder::MERGE, Folder::OVERWRITE, Folder::SKIP
* - `recursive` Whether to copy recursively or not (default: true - recursive)
*
* @param array|string $options (to, from, chmod, skip, scheme)
* @return bool Success
*/
public function move($options)
{
$to = null;
if (is_string($options)) {
$to = $options;
$options = (array)$options;
}
$options += ['to' => $to, 'from' => $this->path, 'mode' => $this->mode, 'skip' => [], 'recursive' => true];
if ($this->copy($options) && $this->delete($options['from'])) {
return (bool)$this->cd($options['to']);
}
return false;
}
/**
* get messages from latest method
*
* @param bool $reset Reset message stack after reading
* @return array
*/
public function messages($reset = true)
{
$messages = $this->_messages;
if ($reset) {
$this->_messages = [];
}
return $messages;
}
/**
* get error from latest method
*
* @param bool $reset Reset error stack after reading
* @return array
*/
public function errors($reset = true)
{
$errors = $this->_errors;
if ($reset) {
$this->_errors = [];
}
return $errors;
}
/**
* Get the real path (taking ".." and such into account)
*
* @param string $path Path to resolve
* @return string|false The resolved path
*/
public function realpath($path)
{
if (strpos($path, '..') === false) {
if (!Folder::isAbsolute($path)) {
$path = Folder::addPathElement($this->path, $path);
}
return $path;
}
$path = str_replace('/', DIRECTORY_SEPARATOR, trim($path));
$parts = explode(DIRECTORY_SEPARATOR, $path);
$newparts = [];
$newpath = '';
if ($path[0] === DIRECTORY_SEPARATOR) {
$newpath = DIRECTORY_SEPARATOR;
}
while (($part = array_shift($parts)) !== null) {
if ($part === '.' || $part === '') {
continue;
}
if ($part === '..') {
if (!empty($newparts)) {
array_pop($newparts);
continue;
}
return false;
}
$newparts[] = $part;
}
$newpath .= implode(DIRECTORY_SEPARATOR, $newparts);
return Folder::slashTerm($newpath);
}
/**
* Returns true if given $path ends in a slash (i.e. is slash-terminated).
*
* @param string $path Path to check
* @return bool true if path ends with slash, false otherwise
*/
public static function isSlashTerm($path)
{
$lastChar = $path[strlen($path) - 1];
return $lastChar === '/' || $lastChar === '\\';
}
}