369 lines
9.1 KiB
PHP
369 lines
9.1 KiB
PHP
<?php
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/**
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* Copyright (c) 2012 Robin Appelman <icewind@owncloud.com>
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* This file is licensed under the Affero General Public License version 3 or
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* later.
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* See the COPYING-README file.
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*/
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namespace OC\Files\Storage;
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if (\OC_Util::runningOnWindows()) {
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class Local extends MappedLocal {
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}
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} else {
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/**
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* for local filestore, we only have to map the paths
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*/
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class Local extends \OC\Files\Storage\Common {
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protected $datadir;
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public function __construct($arguments) {
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$this->datadir = $arguments['datadir'];
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if (substr($this->datadir, -1) !== '/') {
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$this->datadir .= '/';
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}
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}
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public function __destruct() {
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}
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public function getId() {
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return 'local::' . $this->datadir;
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}
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public function mkdir($path) {
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return @mkdir($this->datadir . $path, 0777, true);
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}
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public function rmdir($path) {
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try {
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$it = new \RecursiveIteratorIterator(
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new \RecursiveDirectoryIterator($this->datadir . $path),
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\RecursiveIteratorIterator::CHILD_FIRST
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);
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/**
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* RecursiveDirectoryIterator on an NFS path isn't iterable with foreach
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* This bug is fixed in PHP 5.5.9 or before
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* See #8376
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*/
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$it->rewind();
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while ($it->valid()) {
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/**
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* @var \SplFileInfo $file
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*/
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$file = $it->current();
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if (in_array($file->getBasename(), array('.', '..'))) {
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$it->next();
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continue;
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} elseif ($file->isDir()) {
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rmdir($file->getPathname());
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} elseif ($file->isFile() || $file->isLink()) {
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unlink($file->getPathname());
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}
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$it->next();
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}
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return rmdir($this->datadir . $path);
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} catch (\UnexpectedValueException $e) {
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return false;
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}
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}
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public function opendir($path) {
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return opendir($this->datadir . $path);
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}
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public function is_dir($path) {
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if (substr($path, -1) == '/') {
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$path = substr($path, 0, -1);
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}
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return is_dir($this->datadir . $path);
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}
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public function is_file($path) {
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return is_file($this->datadir . $path);
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}
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public function stat($path) {
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$fullPath = $this->datadir . $path;
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$statResult = stat($fullPath);
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$filesize = self::getFileSizeWithTricks($fullPath);
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if (!is_null($filesize)) {
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$statResult['size'] = $filesize;
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$statResult[7] = $filesize;
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}
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return $statResult;
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}
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public function filetype($path) {
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$filetype = filetype($this->datadir . $path);
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if ($filetype == 'link') {
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$filetype = filetype(realpath($this->datadir . $path));
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}
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return $filetype;
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}
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public function filesize($path) {
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if ($this->is_dir($path)) {
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return 0;
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} else {
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$fullPath = $this->datadir . $path;
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$filesize = self::getFileSizeWithTricks($fullPath);
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if (!is_null($filesize)) {
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return $filesize;
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}
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return filesize($fullPath);
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}
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}
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public function isReadable($path) {
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return is_readable($this->datadir . $path);
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}
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public function isUpdatable($path) {
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return is_writable($this->datadir . $path);
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}
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public function file_exists($path) {
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return file_exists($this->datadir . $path);
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}
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public function filemtime($path) {
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return filemtime($this->datadir . $path);
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}
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public function touch($path, $mtime = null) {
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// sets the modification time of the file to the given value.
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// If mtime is nil the current time is set.
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// note that the access time of the file always changes to the current time.
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if ($this->file_exists($path) and !$this->isUpdatable($path)) {
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return false;
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}
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if (!is_null($mtime)) {
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$result = touch($this->datadir . $path, $mtime);
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} else {
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$result = touch($this->datadir . $path);
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}
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if ($result) {
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clearstatcache(true, $this->datadir . $path);
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}
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return $result;
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}
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public function file_get_contents($path) {
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return file_get_contents($this->datadir . $path);
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}
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public function file_put_contents($path, $data) { //trigger_error("$path = ".var_export($path, 1));
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return file_put_contents($this->datadir . $path, $data);
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}
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public function unlink($path) {
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if ($this->is_dir($path)) {
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return $this->rmdir($path);
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} else if ($this->is_file($path)) {
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return unlink($this->datadir . $path);
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} else {
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return false;
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}
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}
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public function rename($path1, $path2) {
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if (!$this->isUpdatable($path1)) {
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\OC_Log::write('core', 'unable to rename, file is not writable : ' . $path1, \OC_Log::ERROR);
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return false;
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}
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if (!$this->file_exists($path1)) {
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\OC_Log::write('core', 'unable to rename, file does not exists : ' . $path1, \OC_Log::ERROR);
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return false;
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}
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if ($this->is_dir($path2)) {
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$this->rmdir($path2);
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} else if ($this->is_file($path2)) {
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$this->unlink($path2);
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}
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return rename($this->datadir . $path1, $this->datadir . $path2);
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}
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public function copy($path1, $path2) {
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if ($this->is_dir($path1)) {
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return parent::copy($path1, $path2);
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} else {
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return copy($this->datadir . $path1, $this->datadir . $path2);
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}
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}
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public function fopen($path, $mode) {
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if ($return = fopen($this->datadir . $path, $mode)) {
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switch ($mode) {
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case 'r':
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break;
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case 'r+':
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case 'w+':
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case 'x+':
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case 'a+':
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break;
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case 'w':
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case 'x':
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case 'a':
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break;
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}
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}
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return $return;
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}
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/**
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* @brief Tries to get the filesize via various workarounds if necessary.
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* @param string $fullPath
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* @return mixed Number of bytes on success and workaround necessary, null otherwise.
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*/
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private static function getFileSizeWithTricks($fullPath) {
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if (PHP_INT_SIZE === 4) {
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// filesize() and stat() are unreliable on 32bit systems
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// for big files.
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// In some cases they cause an E_WARNING and return false,
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// in some other cases they silently wrap around at 2^32,
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// i.e. e.g. report 674347008 bytes instead of 4969314304.
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$filesize = self::getFileSizeFromCurl($fullPath);
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if (!is_null($filesize)) {
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return $filesize;
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}
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$filesize = self::getFileSizeFromOS($fullPath);
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if (!is_null($filesize)) {
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return $filesize;
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}
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}
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return null;
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}
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/**
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* @brief Tries to get the filesize via a CURL HEAD request.
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* @param string $fullPath
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* @return mixed Number of bytes on success, null otherwise.
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*/
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private static function getFileSizeFromCurl($fullPath) {
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if (function_exists('curl_init')) {
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$ch = curl_init("file://$fullPath");
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curl_setopt($ch, CURLOPT_NOBODY, true);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_HEADER, true);
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$data = curl_exec($ch);
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curl_close($ch);
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if ($data !== false) {
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$matches = array();
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preg_match('/Content-Length: (\d+)/', $data, $matches);
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if (isset($matches[1])) {
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return 0 + $matches[1];
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}
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}
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}
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return null;
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}
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/**
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* @brief Tries to get the filesize via COM and exec().
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* @param string $fullPath
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* @return mixed Number of bytes on success, null otherwise.
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*/
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private static function getFileSizeFromOS($fullPath) {
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$name = strtolower(php_uname('s'));
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// Windows OS: we use COM to access the filesystem
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if (strpos($name, 'win') !== false) {
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if (class_exists('COM')) {
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$fsobj = new \COM("Scripting.FileSystemObject");
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$f = $fsobj->GetFile($fullPath);
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return $f->Size;
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}
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} else if (strpos($name, 'bsd') !== false) {
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if (\OC_Helper::is_function_enabled('exec')) {
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return 0 + exec('stat -f %z ' . escapeshellarg($fullPath));
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}
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} else if (strpos($name, 'linux') !== false) {
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if (\OC_Helper::is_function_enabled('exec')) {
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return 0 + exec('stat -c %s ' . escapeshellarg($fullPath));
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}
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} else {
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\OC_Log::write('core',
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'Unable to determine file size of "' . $fullPath . '". Unknown OS: ' . $name,
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\OC_Log::ERROR);
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}
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return null;
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}
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public function hash($type, $path, $raw = false) {
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return hash_file($type, $this->datadir . $path, $raw);
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}
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public function free_space($path) {
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$space = @disk_free_space($this->datadir . $path);
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if ($space === false || is_null($space)) {
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return \OC\Files\SPACE_UNKNOWN;
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}
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return $space;
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}
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public function search($query) {
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return $this->searchInDir($query);
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}
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public function getLocalFile($path) {
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return $this->datadir . $path;
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}
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public function getLocalFolder($path) {
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return $this->datadir . $path;
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}
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/**
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* @param string $query
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*/
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protected function searchInDir($query, $dir = '') {
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$files = array();
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foreach (scandir($this->datadir . $dir) as $item) {
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if ($item == '.' || $item == '..') continue;
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if (strstr(strtolower($item), strtolower($query)) !== false) {
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$files[] = $dir . '/' . $item;
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}
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if (is_dir($this->datadir . $dir . '/' . $item)) {
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$files = array_merge($files, $this->searchInDir($query, $dir . '/' . $item));
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}
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}
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return $files;
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}
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/**
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* check if a file or folder has been updated since $time
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*
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* @param string $path
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* @param int $time
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* @return bool
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*/
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public function hasUpdated($path, $time) {
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if ($this->file_exists($path)) {
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return $this->filemtime($path) > $time;
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} else {
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return true;
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function isLocal() {
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return true;
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}
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}
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}
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