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- <?php
- /**
- * elFinder driver for local filesystem.
- *
- * @author Dmitry (dio) Levashov
- * @author Troex Nevelin
- **/
- class elFinderVolumeLocalFileSystem extends elFinderVolumeDriver {
-
- /**
- * Driver id
- * Must be started from letter and contains [a-z0-9]
- * Used as part of volume id
- *
- * @var string
- **/
- protected $driverId = 'l';
-
- /**
- * Required to count total archive files size
- *
- * @var int
- **/
- protected $archiveSize = 0;
-
- /**
- * Constructor
- * Extend options with required fields
- *
- * @return void
- * @author Dmitry (dio) Levashov
- **/
- public function __construct() {
- $this->options['alias'] = ''; // alias to replace root dir name
- $this->options['dirMode'] = 0755; // new dirs mode
- $this->options['fileMode'] = 0644; // new files mode
- $this->options['quarantine'] = '.quarantine'; // quarantine folder name - required to check archive (must be hidden)
- $this->options['maxArcFilesSize'] = 0; // max allowed archive files size (0 - no limit)
- }
-
- /*********************************************************************/
- /* INIT AND CONFIGURE */
- /*********************************************************************/
-
- /**
- * Configure after successfull mount.
- *
- * @return void
- * @author Dmitry (dio) Levashov
- **/
- protected function configure() {
- $this->aroot = realpath($this->root);
- $root = $this->stat($this->root);
-
- if ($this->options['quarantine']) {
- $this->attributes[] = array(
- 'pattern' => '~^'.preg_quote(DIRECTORY_SEPARATOR.$this->options['quarantine']).'$~',
- 'read' => false,
- 'write' => false,
- 'locked' => true,
- 'hidden' => true
- );
- }
-
- // chek thumbnails path
- if ($this->options['tmbPath']) {
- $this->options['tmbPath'] = strpos($this->options['tmbPath'], DIRECTORY_SEPARATOR) === false
- // tmb path set as dirname under root dir
- ? $this->root.DIRECTORY_SEPARATOR.$this->options['tmbPath']
- // tmb path as full path
- : $this->_normpath($this->options['tmbPath']);
- }
- parent::configure();
-
- // if no thumbnails url - try detect it
- if ($root['read'] && !$this->tmbURL && $this->URL) {
- if (strpos($this->tmbPath, $this->root) === 0) {
- $this->tmbURL = $this->URL.str_replace(DIRECTORY_SEPARATOR, '/', substr($this->tmbPath, strlen($this->root)+1));
- if (preg_match("|[^/?&=]$|", $this->tmbURL)) {
- $this->tmbURL .= '/';
- }
- }
- }
- // check quarantine dir
- if (!empty($this->options['quarantine'])) {
- $this->quarantine = $this->root.DIRECTORY_SEPARATOR.$this->options['quarantine'];
- if ((!is_dir($this->quarantine) && !$this->_mkdir($this->root, $this->options['quarantine'])) || !is_writable($this->quarantine)) {
- $this->archivers['extract'] = array();
- $this->disabled[] = 'extract';
- }
- } else {
- $this->archivers['extract'] = array();
- $this->disabled[] = 'extract';
- }
-
- }
-
- /*********************************************************************/
- /* FS API */
- /*********************************************************************/
- /*********************** paths/urls *************************/
-
- /**
- * Return parent directory path
- *
- * @param string $path file path
- * @return string
- * @author Dmitry (dio) Levashov
- **/
- protected function _dirname($path) {
- return dirname($path);
- }
- /**
- * Return file name
- *
- * @param string $path file path
- * @return string
- * @author Dmitry (dio) Levashov
- **/
- protected function _basename($path) {
- return basename($path);
- }
- /**
- * Join dir name and file name and retur full path
- *
- * @param string $dir
- * @param string $name
- * @return string
- * @author Dmitry (dio) Levashov
- **/
- protected function _joinPath($dir, $name) {
- return $dir.DIRECTORY_SEPARATOR.$name;
- }
-
- /**
- * Return normalized path, this works the same as os.path.normpath() in Python
- *
- * @param string $path path
- * @return string
- * @author Troex Nevelin
- **/
- protected function _normpath($path) {
- if (empty($path)) {
- return '.';
- }
- if (strpos($path, '/') === 0) {
- $initial_slashes = true;
- } else {
- $initial_slashes = false;
- }
-
- if (($initial_slashes)
- && (strpos($path, '//') === 0)
- && (strpos($path, '///') === false)) {
- $initial_slashes = 2;
- }
-
- $initial_slashes = (int) $initial_slashes;
- $comps = explode('/', $path);
- $new_comps = array();
- foreach ($comps as $comp) {
- if (in_array($comp, array('', '.'))) {
- continue;
- }
-
- if (($comp != '..')
- || (!$initial_slashes && !$new_comps)
- || ($new_comps && (end($new_comps) == '..'))) {
- array_push($new_comps, $comp);
- } elseif ($new_comps) {
- array_pop($new_comps);
- }
- }
- $comps = $new_comps;
- $path = implode('/', $comps);
- if ($initial_slashes) {
- $path = str_repeat('/', $initial_slashes) . $path;
- }
-
- return $path ? $path : '.';
- }
-
- /**
- * Return file path related to root dir
- *
- * @param string $path file path
- * @return string
- * @author Dmitry (dio) Levashov
- **/
- protected function _relpath($path) {
- return $path == $this->root ? '' : substr($path, strlen($this->root)+1);
- }
-
- /**
- * Convert path related to root dir into real path
- *
- * @param string $path file path
- * @return string
- * @author Dmitry (dio) Levashov
- **/
- protected function _abspath($path) {
- return $path == DIRECTORY_SEPARATOR ? $this->root : $this->root.DIRECTORY_SEPARATOR.$path;
- }
-
- /**
- * Return fake path started from root dir
- *
- * @param string $path file path
- * @return string
- * @author Dmitry (dio) Levashov
- **/
- protected function _path($path) {
- return $this->rootName.($path == $this->root ? '' : $this->separator.$this->_relpath($path));
- }
-
- /**
- * Return true if $path is children of $parent
- *
- * @param string $path path to check
- * @param string $parent parent path
- * @return bool
- * @author Dmitry (dio) Levashov
- **/
- protected function _inpath($path, $parent) {
- return $path == $parent || strpos($path, $parent.DIRECTORY_SEPARATOR) === 0;
- }
-
-
-
- /***************** file stat ********************/
- /**
- * Return stat for given path.
- * Stat contains following fields:
- * - (int) size file size in b. required
- * - (int) ts file modification time in unix time. required
- * - (string) mime mimetype. required for folders, others - optionally
- * - (bool) read read permissions. required
- * - (bool) write write permissions. required
- * - (bool) locked is object locked. optionally
- * - (bool) hidden is object hidden. optionally
- * - (string) alias for symlinks - link target path relative to root path. optionally
- * - (string) target for symlinks - link target path. optionally
- *
- * If file does not exists - returns empty array or false.
- *
- * @param string $path file path
- * @return array|false
- * @author Dmitry (dio) Levashov
- **/
- protected function _stat($path) {
- $stat = array();
- if (!file_exists($path)) {
- return $stat;
- }
- if ($path != $this->root && is_link($path)) {
- if (($target = $this->readlink($path)) == false
- || $target == $path) {
- $stat['mime'] = 'symlink-broken';
- $stat['read'] = false;
- $stat['write'] = false;
- $stat['size'] = 0;
- return $stat;
- }
- $stat['alias'] = $this->_path($target);
- $stat['target'] = $target;
- $path = $target;
- $lstat = lstat($path);
- $size = $lstat['size'];
- } else {
- $size = @filesize($path);
- }
-
- $dir = is_dir($path);
-
- $stat['mime'] = $dir ? 'directory' : $this->mimetype($path);
- $stat['ts'] = filemtime($path);
- $stat['read'] = is_readable($path);
- $stat['write'] = is_writable($path);
- if ($stat['read']) {
- $stat['size'] = $dir ? 0 : $size;
- }
-
- return $stat;
- }
-
- /**
- * Return true if path is dir and has at least one childs directory
- *
- * @param string $path dir path
- * @return bool
- * @author Dmitry (dio) Levashov
- **/
- protected function _subdirs($path) {
- if (($dir = dir($path))) {
- $dir = dir($path);
- while (($entry = $dir->read()) !== false) {
- $p = $dir->path.DIRECTORY_SEPARATOR.$entry;
- if ($entry != '.' && $entry != '..' && is_dir($p) && !$this->attr($p, 'hidden')) {
- $dir->close();
- return true;
- }
- }
- $dir->close();
- }
- return false;
- }
-
- /**
- * Return object width and height
- * Ususaly used for images, but can be realize for video etc...
- *
- * @param string $path file path
- * @param string $mime file mime type
- * @return string
- * @author Dmitry (dio) Levashov
- **/
- protected function _dimensions($path, $mime) {
- clearstatcache();
- return strpos($mime, 'image') === 0 && ($s = @getimagesize($path)) !== false
- ? $s[0].'x'.$s[1]
- : false;
- }
- /******************** file/dir content *********************/
-
- /**
- * Return symlink target file
- *
- * @param string $path link path
- * @return string
- * @author Dmitry (dio) Levashov
- **/
- protected function readlink($path) {
- if (!($target = @readlink($path))) {
- return false;
- }
-
- if (substr($target, 0, 1) != DIRECTORY_SEPARATOR) {
- $target = dirname($path).DIRECTORY_SEPARATOR.$target;
- }
-
- $atarget = realpath($target);
-
- if (!$atarget) {
- return false;
- }
-
- $root = $this->root;
- $aroot = $this->aroot;
- if ($this->_inpath($atarget, $this->aroot)) {
- return $this->_normpath($this->root.DIRECTORY_SEPARATOR.substr($atarget, strlen($this->aroot)+1));
- }
- return false;
- }
-
- /**
- * Return files list in directory.
- *
- * @param string $path dir path
- * @return array
- * @author Dmitry (dio) Levashov
- **/
- protected function _scandir($path) {
- $files = array();
-
- foreach (scandir($path) as $name) {
- if ($name != '.' && $name != '..') {
- $files[] = $path.DIRECTORY_SEPARATOR.$name;
- }
- }
- return $files;
- }
-
- /**
- * Open file and return file pointer
- *
- * @param string $path file path
- * @param bool $write open file for writing
- * @return resource|false
- * @author Dmitry (dio) Levashov
- **/
- protected function _fopen($path, $mode='rb') {
- return @fopen($path, 'r');
- }
-
- /**
- * Close opened file
- *
- * @param resource $fp file pointer
- * @return bool
- * @author Dmitry (dio) Levashov
- **/
- protected function _fclose($fp, $path='') {
- return @fclose($fp);
- }
-
- /******************** file/dir manipulations *************************/
-
- /**
- * Create dir and return created dir path or false on failed
- *
- * @param string $path parent dir path
- * @param string $name new directory name
- * @return string|bool
- * @author Dmitry (dio) Levashov
- **/
- protected function _mkdir($path, $name) {
- $path = $path.DIRECTORY_SEPARATOR.$name;
- if (@mkdir($path)) {
- @chmod($path, $this->options['dirMode']);
- return $path;
- }
- return false;
- }
-
- /**
- * Create file and return it's path or false on failed
- *
- * @param string $path parent dir path
- * @param string $name new file name
- * @return string|bool
- * @author Dmitry (dio) Levashov
- **/
- protected function _mkfile($path, $name) {
- $path = $path.DIRECTORY_SEPARATOR.$name;
-
- if (($fp = @fopen($path, 'w'))) {
- @fclose($fp);
- @chmod($path, $this->options['fileMode']);
- return $path;
- }
- return false;
- }
-
- /**
- * Create symlink
- *
- * @param string $source file to link to
- * @param string $targetDir folder to create link in
- * @param string $name symlink name
- * @return bool
- * @author Dmitry (dio) Levashov
- **/
- protected function _symlink($source, $targetDir, $name) {
- return @symlink($source, $targetDir.DIRECTORY_SEPARATOR.$name);
- }
-
- /**
- * Copy file into another file
- *
- * @param string $source source file path
- * @param string $targetDir target directory path
- * @param string $name new file name
- * @return bool
- * @author Dmitry (dio) Levashov
- **/
- protected function _copy($source, $targetDir, $name) {
- return copy($source, $targetDir.DIRECTORY_SEPARATOR.$name);
- }
-
- /**
- * Move file into another parent dir.
- * Return new file path or false.
- *
- * @param string $source source file path
- * @param string $target target dir path
- * @param string $name file name
- * @return string|bool
- * @author Dmitry (dio) Levashov
- **/
- protected function _move($source, $targetDir, $name) {
- $target = $targetDir.DIRECTORY_SEPARATOR.$name;
- return @rename($source, $target) ? $target : false;
- }
-
- /**
- * Remove file
- *
- * @param string $path file path
- * @return bool
- * @author Dmitry (dio) Levashov
- **/
- protected function _unlink($path) {
- return @unlink($path);
- }
- /**
- * Remove dir
- *
- * @param string $path dir path
- * @return bool
- * @author Dmitry (dio) Levashov
- **/
- protected function _rmdir($path) {
- return @rmdir($path);
- }
-
- /**
- * Create new file and write into it from file pointer.
- * Return new file path or false on error.
- *
- * @param resource $fp file pointer
- * @param string $dir target dir path
- * @param string $name file name
- * @return bool|string
- * @author Dmitry (dio) Levashov
- **/
- protected function _save($fp, $dir, $name, $mime, $w, $h) {
- $path = $dir.DIRECTORY_SEPARATOR.$name;
- if (!($target = @fopen($path, 'wb'))) {
- return false;
- }
- while (!feof($fp)) {
- fwrite($target, fread($fp, 8192));
- }
- fclose($target);
- @chmod($path, $this->options['fileMode']);
- clearstatcache();
- return $path;
- }
-
- /**
- * Get file contents
- *
- * @param string $path file path
- * @return string|false
- * @author Dmitry (dio) Levashov
- **/
- protected function _getContents($path) {
- return file_get_contents($path);
- }
-
- /**
- * Write a string to a file
- *
- * @param string $path file path
- * @param string $content new file content
- * @return bool
- * @author Dmitry (dio) Levashov
- **/
- protected function _filePutContents($path, $content) {
- if (@file_put_contents($path, $content, LOCK_EX) !== false) {
- clearstatcache();
- return true;
- }
- return false;
- }
- /**
- * Detect available archivers
- *
- * @return void
- **/
- protected function _checkArchivers() {
- if (!function_exists('exec')) {
- $this->options['archivers'] = $this->options['archive'] = array();
- return;
- }
- $arcs = array(
- 'create' => array(),
- 'extract' => array()
- );
-
- //exec('tar --version', $o, $ctar);
- $this->procExec('tar --version', $o, $ctar);
- if ($ctar == 0) {
- $arcs['create']['application/x-tar'] = array('cmd' => 'tar', 'argc' => '-cf', 'ext' => 'tar');
- $arcs['extract']['application/x-tar'] = array('cmd' => 'tar', 'argc' => '-xf', 'ext' => 'tar');
- //$test = exec('gzip --version', $o, $c);
- unset($o);
- $test = $this->procExec('gzip --version', $o, $c);
- if ($c == 0) {
- $arcs['create']['application/x-gzip'] = array('cmd' => 'tar', 'argc' => '-czf', 'ext' => 'tgz');
- $arcs['extract']['application/x-gzip'] = array('cmd' => 'tar', 'argc' => '-xzf', 'ext' => 'tgz');
- }
- unset($o);
- //$test = exec('bzip2 --version', $o, $c);
- $test = $this->procExec('bzip2 --version', $o, $c);
- if ($c == 0) {
- $arcs['create']['application/x-bzip2'] = array('cmd' => 'tar', 'argc' => '-cjf', 'ext' => 'tbz');
- $arcs['extract']['application/x-bzip2'] = array('cmd' => 'tar', 'argc' => '-xjf', 'ext' => 'tbz');
- }
- }
- unset($o);
- //exec('zip --version', $o, $c);
- $this->procExec('zip -v', $o, $c);
- if ($c == 0) {
- $arcs['create']['application/zip'] = array('cmd' => 'zip', 'argc' => '-r9', 'ext' => 'zip');
- }
- unset($o);
- $this->procExec('unzip --help', $o, $c);
- if ($c == 0) {
- $arcs['extract']['application/zip'] = array('cmd' => 'unzip', 'argc' => '', 'ext' => 'zip');
- }
- unset($o);
- //exec('rar --version', $o, $c);
- $this->procExec('rar --version', $o, $c);
- if ($c == 0 || $c == 7) {
- $arcs['create']['application/x-rar'] = array('cmd' => 'rar', 'argc' => 'a -inul', 'ext' => 'rar');
- $arcs['extract']['application/x-rar'] = array('cmd' => 'rar', 'argc' => 'x -y', 'ext' => 'rar');
- } else {
- unset($o);
- //$test = exec('unrar', $o, $c);
- $test = $this->procExec('unrar', $o, $c);
- if ($c==0 || $c == 7) {
- $arcs['extract']['application/x-rar'] = array('cmd' => 'unrar', 'argc' => 'x -y', 'ext' => 'rar');
- }
- }
- unset($o);
- //exec('7za --help', $o, $c);
- $this->procExec('7za --help', $o, $c);
- if ($c == 0) {
- $arcs['create']['application/x-7z-compressed'] = array('cmd' => '7za', 'argc' => 'a', 'ext' => '7z');
- $arcs['extract']['application/x-7z-compressed'] = array('cmd' => '7za', 'argc' => 'e -y', 'ext' => '7z');
-
- if (empty($arcs['create']['application/x-gzip'])) {
- $arcs['create']['application/x-gzip'] = array('cmd' => '7za', 'argc' => 'a -tgzip', 'ext' => 'tar.gz');
- }
- if (empty($arcs['extract']['application/x-gzip'])) {
- $arcs['extract']['application/x-gzip'] = array('cmd' => '7za', 'argc' => 'e -tgzip -y', 'ext' => 'tar.gz');
- }
- if (empty($arcs['create']['application/x-bzip2'])) {
- $arcs['create']['application/x-bzip2'] = array('cmd' => '7za', 'argc' => 'a -tbzip2', 'ext' => 'tar.bz');
- }
- if (empty($arcs['extract']['application/x-bzip2'])) {
- $arcs['extract']['application/x-bzip2'] = array('cmd' => '7za', 'argc' => 'a -tbzip2 -y', 'ext' => 'tar.bz');
- }
- if (empty($arcs['create']['application/zip'])) {
- $arcs['create']['application/zip'] = array('cmd' => '7za', 'argc' => 'a -tzip -l', 'ext' => 'zip');
- }
- if (empty($arcs['extract']['application/zip'])) {
- $arcs['extract']['application/zip'] = array('cmd' => '7za', 'argc' => 'e -tzip -y', 'ext' => 'zip');
- }
- if (empty($arcs['create']['application/x-tar'])) {
- $arcs['create']['application/x-tar'] = array('cmd' => '7za', 'argc' => 'a -ttar -l', 'ext' => 'tar');
- }
- if (empty($arcs['extract']['application/x-tar'])) {
- $arcs['extract']['application/x-tar'] = array('cmd' => '7za', 'argc' => 'e -ttar -y', 'ext' => 'tar');
- }
- }
-
- $this->archivers = $arcs;
- }
- /**
- * Unpack archive
- *
- * @param string $path archive path
- * @param array $arc archiver command and arguments (same as in $this->archivers)
- * @return void
- * @author Dmitry (dio) Levashov
- * @author Alexey Sukhotin
- **/
- protected function _unpack($path, $arc) {
- $cwd = getcwd();
- $dir = $this->_dirname($path);
- chdir($dir);
- $cmd = $arc['cmd'].' '.$arc['argc'].' '.escapeshellarg($this->_basename($path));
- $this->procExec($cmd, $o, $c);
- chdir($cwd);
- }
- /**
- * Recursive symlinks search
- *
- * @param string $path file/dir path
- * @return bool
- * @author Dmitry (dio) Levashov
- **/
- protected function _findSymlinks($path) {
- if (is_link($path)) {
- return true;
- }
-
- if (is_dir($path)) {
- foreach (scandir($path) as $name) {
- if ($name != '.' && $name != '..') {
- $p = $path.DIRECTORY_SEPARATOR.$name;
- if (is_link($p)) {
- return true;
- }
- if (is_dir($p) && $this->_findSymlinks($p)) {
- return true;
- } elseif (is_file($p)) {
- $this->archiveSize += filesize($p);
- }
- }
- }
- } else {
- $this->archiveSize += filesize($path);
- }
-
- return false;
- }
- /**
- * Extract files from archive
- *
- * @param string $path archive path
- * @param array $arc archiver command and arguments (same as in $this->archivers)
- * @return true
- * @author Dmitry (dio) Levashov,
- * @author Alexey Sukhotin
- **/
- protected function _extract($path, $arc) {
-
- if ($this->quarantine) {
- $dir = $this->quarantine.DIRECTORY_SEPARATOR.str_replace(' ', '_', microtime()).basename($path);
- $archive = $dir.DIRECTORY_SEPARATOR.basename($path);
-
- if (!@mkdir($dir)) {
- return false;
- }
-
- chmod($dir, 0777);
-
- // copy in quarantine
- if (!copy($path, $archive)) {
- return false;
- }
-
- // extract in quarantine
- $this->_unpack($archive, $arc);
- @unlink($archive);
-
- // get files list
- $ls = array();
- foreach (scandir($dir) as $i => $name) {
- if ($name != '.' && $name != '..') {
- $ls[] = $name;
- }
- }
-
- // no files - extract error ?
- if (empty($ls)) {
- return false;
- }
-
- $this->archiveSize = 0;
-
- // find symlinks
- $symlinks = $this->_findSymlinks($dir);
- // remove arc copy
- $this->remove($dir);
-
- if ($symlinks) {
- return $this->setError(elFinder::ERROR_ARC_SYMLINKS);
- }
- // check max files size
- if ($this->options['maxArcFilesSize'] > 0 && $this->options['maxArcFilesSize'] < $this->archiveSize) {
- return $this->setError(elFinder::ERROR_ARC_MAXSIZE);
- }
-
-
-
- // archive contains one item - extract in archive dir
- if (count($ls) == 1) {
- $this->_unpack($path, $arc);
- $result = dirname($path).DIRECTORY_SEPARATOR.$ls[0];
-
- } else {
- // for several files - create new directory
- // create unique name for directory
- $name = basename($path);
- if (preg_match('/\.((tar\.(gz|bz|bz2|z|lzo))|cpio\.gz|ps\.gz|xcf\.(gz|bz2)|[a-z0-9]{1,4})$/i', $name, $m)) {
- $name = substr($name, 0, strlen($name)-strlen($m[0]));
- }
- $test = dirname($path).DIRECTORY_SEPARATOR.$name;
- if (file_exists($test) || is_link($test)) {
- $name = $this->uniqueName(dirname($path), $name, '-', false);
- }
-
- $result = dirname($path).DIRECTORY_SEPARATOR.$name;
- $archive = $result.DIRECTORY_SEPARATOR.basename($path);
- if (!$this->_mkdir(dirname($path), $name) || !copy($path, $archive)) {
- return false;
- }
-
- $this->_unpack($archive, $arc);
- @unlink($archive);
- }
-
- return file_exists($result) ? $result : false;
- }
- }
-
- /**
- * Create archive and return its path
- *
- * @param string $dir target dir
- * @param array $files files names list
- * @param string $name archive name
- * @param array $arc archiver options
- * @return string|bool
- * @author Dmitry (dio) Levashov,
- * @author Alexey Sukhotin
- **/
- protected function _archive($dir, $files, $name, $arc) {
- $cwd = getcwd();
- chdir($dir);
-
- $files = array_map('escapeshellarg', $files);
-
- $cmd = $arc['cmd'].' '.$arc['argc'].' '.escapeshellarg($name).' '.implode(' ', $files);
- $this->procExec($cmd, $o, $c);
- chdir($cwd);
- $path = $dir.DIRECTORY_SEPARATOR.$name;
- return file_exists($path) ? $path : false;
- }
-
- } // END class
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