nextcloud/lib/private/files/storage/mappedlocal.php

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<?php
/**
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* @author Andreas Fischer <bantu@owncloud.com>
* @author Arthur Schiwon <blizzz@owncloud.com>
* @author Bart Visscher <bartv@thisnet.nl>
* @author Clark Tomlinson <fallen013@gmail.com>
* @author Joas Schilling <nickvergessen@gmx.de>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Robin Appelman <icewind@owncloud.com>
* @author Scrutinizer Auto-Fixer <auto-fixer@scrutinizer-ci.com>
* @author Sjors van der Pluijm <sjors@desjors.nl>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
*
* @copyright Copyright (c) 2015, ownCloud, Inc.
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\Files\Storage;
/**
* for local filestore, we only have to map the paths
*/
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class MappedLocal extends \OC\Files\Storage\Common {
protected $datadir;
private $mapper;
public function __construct($arguments) {
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$this->datadir = $arguments['datadir'];
if (substr($this->datadir, -1) !== '/') {
$this->datadir .= '/';
}
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$this->mapper = new \OC\Files\Mapper($this->datadir);
}
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public function __destruct() {
}
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public function getId() {
return 'local::' . $this->datadir;
}
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public function mkdir($path) {
return @mkdir($this->getSourcePath($path), 0777, true);
}
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public function rmdir($path) {
if (!$this->isDeletable($path)) {
return false;
}
try {
$it = new \RecursiveIteratorIterator(
new \RecursiveDirectoryIterator($this->getSourcePath($path)),
\RecursiveIteratorIterator::CHILD_FIRST
);
/**
* RecursiveDirectoryIterator on an NFS path isn't iterable with foreach
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* This bug is fixed in PHP 5.5.9 or before
* See #8376
*/
$it->rewind();
while ($it->valid()) {
/**
* @var \SplFileInfo $file
*/
$file = $it->current();
if (in_array($file->getBasename(), array('.', '..'))) {
$it->next();
continue;
} elseif ($file->isDir()) {
rmdir($file->getPathname());
} elseif ($file->isFile() || $file->isLink()) {
unlink($file->getPathname());
}
$it->next();
}
if ($result = @rmdir($this->getSourcePath($path))) {
$this->cleanMapper($path);
}
return $result;
} catch (\UnexpectedValueException $e) {
return false;
}
}
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public function opendir($path) {
$files = array('.', '..');
$physicalPath = $this->getSourcePath($path);
$logicalPath = $this->mapper->physicalToLogic($physicalPath);
$dh = opendir($physicalPath);
if (is_resource($dh)) {
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while (($file = readdir($dh)) !== false) {
if ($file === '.' or $file === '..') {
continue;
}
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$logicalFilePath = $this->mapper->physicalToLogic($physicalPath . '/' . $file);
$file = $this->mapper->stripRootFolder($logicalFilePath, $logicalPath);
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$file = $this->stripLeading($file);
$files[] = $file;
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}
}
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\OC\Files\Stream\Dir::register('local-win32' . $path, $files);
return opendir('fakedir://local-win32' . $path);
}
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public function is_dir($path) {
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if (substr($path, -1) == '/') {
$path = substr($path, 0, -1);
}
return is_dir($this->getSourcePath($path));
}
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public function is_file($path) {
return is_file($this->getSourcePath($path));
}
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public function stat($path) {
clearstatcache();
$fullPath = $this->getSourcePath($path);
$statResult = stat($fullPath);
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if (PHP_INT_SIZE === 4 && !$this->is_dir($path)) {
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$filesize = $this->filesize($path);
$statResult['size'] = $filesize;
$statResult[7] = $filesize;
}
return $statResult;
}
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public function filetype($path) {
$filetype = filetype($this->getSourcePath($path));
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if ($filetype == 'link') {
$filetype = filetype(realpath($this->getSourcePath($path)));
}
return $filetype;
}
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public function filesize($path) {
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if ($this->is_dir($path)) {
return 0;
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}
$fullPath = $this->getSourcePath($path);
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if (PHP_INT_SIZE === 4) {
$helper = new \OC\LargeFileHelper;
return $helper->getFilesize($fullPath);
}
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return filesize($fullPath);
}
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public function isReadable($path) {
return is_readable($this->getSourcePath($path));
}
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public function isUpdatable($path) {
return is_writable($this->getSourcePath($path));
}
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public function file_exists($path) {
return file_exists($this->getSourcePath($path));
}
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public function filemtime($path) {
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clearstatcache($this->getSourcePath($path));
return filemtime($this->getSourcePath($path));
}
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public function touch($path, $mtime = null) {
// sets the modification time of the file to the given value.
// If mtime is nil the current time is set.
// note that the access time of the file always changes to the current time.
if ($this->file_exists($path) and !$this->isUpdatable($path)) {
return false;
}
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if (!is_null($mtime)) {
$result = touch($this->getSourcePath($path), $mtime);
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} else {
$result = touch($this->getSourcePath($path));
}
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if ($result) {
clearstatcache(true, $this->getSourcePath($path));
}
return $result;
}
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public function file_get_contents($path) {
return file_get_contents($this->getSourcePath($path));
}
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public function file_put_contents($path, $data) {
return file_put_contents($this->getSourcePath($path), $data);
}
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public function unlink($path) {
return $this->delTree($path);
}
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public function rename($path1, $path2) {
$srcParent = $this->dirname($path1);
$dstParent = $this->dirname($path2);
if (!$this->isUpdatable($srcParent)) {
\OC_Log::write('core', 'unable to rename, source directory is not writable : ' . $srcParent, \OC_Log::ERROR);
return false;
}
if (!$this->isUpdatable($dstParent)) {
\OC_Log::write('core', 'unable to rename, destination directory is not writable : ' . $dstParent, \OC_Log::ERROR);
return false;
}
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if (!$this->file_exists($path1)) {
\OC_Log::write('core', 'unable to rename, file does not exists : ' . $path1, \OC_Log::ERROR);
return false;
}
if ($this->is_dir($path2)) {
$this->rmdir($path2);
} else if ($this->is_file($path2)) {
$this->unlink($path2);
}
$physicPath1 = $this->getSourcePath($path1);
$physicPath2 = $this->getSourcePath($path2);
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if ($return = rename($physicPath1, $physicPath2)) {
// mapper needs to create copies or all children
$this->copyMapping($path1, $path2);
$this->cleanMapper($physicPath1, false, true);
}
return $return;
}
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public function copy($path1, $path2) {
if ($this->is_dir($path1)) {
if ($this->is_dir($path2)) {
$this->rmdir($path2);
} else if ($this->is_file($path2)) {
$this->unlink($path2);
}
$dir = $this->opendir($path1);
$this->mkdir($path2);
while ($file = readdir($dir)) {
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if (!\OC\Files\Filesystem::isIgnoredDir($file)) {
if (!$this->copy($path1 . '/' . $file, $path2 . '/' . $file)) {
return false;
}
}
}
closedir($dir);
return true;
} else {
if ($return = copy($this->getSourcePath($path1), $this->getSourcePath($path2))) {
$this->copyMapping($path1, $path2);
}
return $return;
}
}
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public function fopen($path, $mode) {
return fopen($this->getSourcePath($path), $mode);
}
/**
* @param string $dir
* @param bool $isLogicPath
* @return bool
*/
private function delTree($dir, $isLogicPath = true) {
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$dirRelative = $dir;
if ($isLogicPath) {
$dir = $this->getSourcePath($dir);
}
if (!file_exists($dir)) {
return true;
}
if (!is_dir($dir) || is_link($dir)) {
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if ($return = unlink($dir)) {
$this->cleanMapper($dir, false);
return $return;
}
}
foreach (scandir($dir) as $item) {
if ($item == '.' || $item == '..') {
continue;
}
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if (is_file($dir . '/' . $item)) {
if (unlink($dir . '/' . $item)) {
$this->cleanMapper($dir . '/' . $item, false);
}
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} elseif (is_dir($dir . '/' . $item)) {
if (!$this->delTree($dir . "/" . $item, false)) {
return false;
};
}
}
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if ($return = rmdir($dir)) {
$this->cleanMapper($dir, false);
}
return $return;
}
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public function hash($type, $path, $raw = false) {
return hash_file($type, $this->getSourcePath($path), $raw);
}
public function free_space($path) {
$space = @disk_free_space($this->getSourcePath($path));
if ($space === false || is_null($space)) {
return \OCP\Files\FileInfo::SPACE_UNKNOWN;
}
return $space;
}
public function search($query) {
return $this->searchInDir($query);
}
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public function getLocalFile($path) {
return $this->getSourcePath($path);
}
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public function getLocalFolder($path) {
return $this->getSourcePath($path);
}
/**
* @param string $query
*/
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protected function searchInDir($query, $dir = '') {
$files = array();
$physicalDir = $this->getSourcePath($dir);
foreach (scandir($physicalDir) as $item) {
if ($item == '.' || $item == '..')
continue;
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$physicalItem = $this->mapper->physicalToLogic($physicalDir . '/' . $item);
$item = substr($physicalItem, strlen($physicalDir) + 1);
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if (strstr(strtolower($item), strtolower($query)) !== false) {
$files[] = $dir . '/' . $item;
}
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if (is_dir($physicalItem)) {
$files = array_merge($files, $this->searchInDir($query, $dir . '/' . $item));
}
}
return $files;
}
/**
* check if a file or folder has been updated since $time
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*
* @param string $path
* @param int $time
* @return bool
*/
public function hasUpdated($path, $time) {
if ($this->file_exists($path)) {
return $this->filemtime($path) > $time;
} else {
return true;
}
}
/**
* Get the source path (on disk) of a given path
*
* @param string $path
* @return string
*/
protected function getSourcePath($path) {
$path = $this->stripLeading($path);
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$fullPath = $this->datadir . $path;
return $this->mapper->logicToPhysical($fullPath, true);
}
/**
* {@inheritdoc}
*/
public function isLocal() {
return true;
}
/**
* @param string $path
* @return string
*/
private function dirName($path) {
$path = dirname($path);
if ($path === '.') {
return '';
} else {
return $path;
}
}
/**
* @param string $path
*/
private function cleanMapper($path, $isLogicPath = true, $recursive = true) {
$fullPath = $path;
if ($isLogicPath) {
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$fullPath = $this->datadir . $path;
}
$this->mapper->removePath($fullPath, $isLogicPath, $recursive);
}
/**
* @param string $path1
* @param string $path2
*/
private function copyMapping($path1, $path2) {
$path1 = $this->stripLeading($path1);
$path2 = $this->stripLeading($path2);
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$fullPath1 = $this->datadir . $path1;
$fullPath2 = $this->datadir . $path2;
$this->mapper->copy($fullPath1, $fullPath2);
}
/**
* @param string $path
*/
private function stripLeading($path) {
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if (strpos($path, '/') === 0) {
$path = substr($path, 1);
}
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if (strpos($path, '\\') === 0) {
$path = substr($path, 1);
}
if ($path === false) {
return '';
}
return $path;
}
}