439 lines
13 KiB
PHP
439 lines
13 KiB
PHP
<?php
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/**
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* ownCloud
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*
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* @author Michael Gapczynski
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* @copyright 2011 Michael Gapczynski mtgap@owncloud.com
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/**
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* Convert target path to source path and pass the function call to the correct storage provider
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*/
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class OC_Filestorage_Shared extends OC_Filestorage_Common {
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private $sharedFolder;
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private $sourcePaths = array();
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public function __construct($arguments) {
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$this->sharedFolder = $arguments['sharedFolder'];
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}
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private function getSourcePath($target) {
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$target = $this->sharedFolder.'/'.$target;
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$target = rtrim($target, '/');
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if (isset($this->sourcePaths[$target])) {
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return $this->sourcePaths[$target];
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} else {
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$pos = strpos($target, '/', 8);
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// Get shared folder name
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if ($pos !== false) {
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$itemTarget = substr($target, 0, $pos);
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} else {
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$itemTarget = $target;
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}
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$sourcePath = OCP\Share::getItemSharedWith('file', $itemTarget, OC_Share_Backend_File::FORMAT_SOURCE_PATH);
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if ($sourcePath) {
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$this->sourcePaths[$target] = $sourcePath.substr($target, strlen($itemTarget));
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return $this->sourcePaths[$target];
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}
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OCP\Util::writeLog('files_sharing', 'File source path not found for: '.$target, OCP\Util::ERROR);
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return false;
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}
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}
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private function getInternalPath($path) {
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$mountPoint = OC_Filesystem::getMountPoint($path);
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$internalPath = substr($path, strlen($mountPoint));
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return $internalPath;
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}
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public function mkdir($path) {
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if ($path == "" || $path == "/" || !$this->is_writable($path)) {
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return false;
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} else {
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if ($source = $this->getSourcePath($path)) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->mkdir($this->getInternalPath($source));
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}
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}
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}
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public function rmdir($path) {
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// The folder will be removed from the database, but won't be deleted from the owner's filesystem
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// TODO
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}
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public function opendir($path) {
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if ($path == '' || $path == '/') {
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$files = OCP\Share::getItemsSharedWith('file', OC_Share_Backend_Folder::FORMAT_OPENDIR);
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OC_FakeDirStream::$dirs['shared'] = $files;
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return opendir('fakedir://shared');
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} else {
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if ($source = $this->getSourcePath($path)) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->opendir($this->getInternalPath($source));
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}
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}
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}
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public function is_dir($path) {
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if ($path == '' || $path == '/') {
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return true;
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} else {
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if ($source = $this->getSourcePath($path)) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->is_dir($this->getInternalPath($source));
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}
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}
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}
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public function is_file($path) {
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if ($source = $this->getSourcePath($path)) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->is_file($this->getInternalPath($source));
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}
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}
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public function stat($path) {
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if ($path == '' || $path == '/') {
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$stat['size'] = $this->filesize($path);
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$stat['mtime'] = $this->filemtime($path);
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$stat['ctime'] = $this->filectime($path);
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return $stat;
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} else {
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if ($source = $this->getSourcePath($path)) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->stat($this->getInternalPath($source));
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}
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}
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}
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public function filetype($path) {
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if ($path == "" || $path == "/") {
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return "dir";
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} else {
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$source = $this->getSourcePath($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->filetype($this->getInternalPath($source));
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}
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}
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}
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public function filesize($path) {
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if ($path == "" || $path == "/" || $this->is_dir($path)) {
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return $this->getFolderSize($path);
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} else {
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$source = $this->getSourcePath($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->filesize($this->getInternalPath($source));
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}
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}
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}
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public function is_readable($path) {
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return true;
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}
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public function is_writable($path) {
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if($path == "" || $path == "/"){
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return false;
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}elseif (OC_Share::getPermissions($this->sharedFolder.$path) & OC_Share::WRITE) {
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return true;
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} else {
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return false;
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}
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}
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public function file_exists($path) {
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if ($path == "" || $path == "/") {
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return true;
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} else {
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$source = $this->getSourcePath($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->file_exists($this->getInternalPath($source));
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}
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}
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}
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public function filectime($path) {
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if ($path == "" || $path == "/") {
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$ctime = 0;
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if ($dh = $this->opendir($path)) {
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while (($filename = readdir($dh)) !== false) {
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$tempctime = $this->filectime($filename);
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if ($tempctime < $ctime) {
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$ctime = $tempctime;
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}
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}
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}
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return $ctime;
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} else {
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$source = $this->getSourcePath($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->filectime($this->getInternalPath($source));
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}
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}
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}
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public function filemtime($path) {
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if ($path == "" || $path == "/") {
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$mtime = 0;
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if ($dh = $this->opendir($path)) {
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while (($filename = readdir($dh)) !== false) {
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$tempmtime = $this->filemtime($filename);
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if ($tempmtime > $mtime) {
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$mtime = $tempmtime;
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}
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}
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}
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return $mtime;
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} else {
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$source = $this->getSourcePath($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->filemtime($this->getInternalPath($source));
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}
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}
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}
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public function file_get_contents($path) {
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$source = $this->getSourcePath($path);
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if ($source) {
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$info = array(
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'target' => $this->sharedFolder.$path,
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'source' => $source,
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);
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OCP\Util::emitHook('OC_Filestorage_Shared', 'file_get_contents', $info);
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$storage = OC_Filesystem::getStorage($source);
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return $storage->file_get_contents($this->getInternalPath($source));
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}
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}
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public function file_put_contents($path, $data) {
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if ($this->is_writable($path)) {
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$source = $this->getSourcePath($path);
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if ($source) {
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$info = array(
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'target' => $this->sharedFolder.$path,
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'source' => $source,
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);
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OCP\Util::emitHook('OC_Filestorage_Shared', 'file_put_contents', $info);
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$storage = OC_Filesystem::getStorage($source);
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$result = $storage->file_put_contents($this->getInternalPath($source), $data);
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if ($result) {
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$this->clearFolderSizeCache($path);
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}
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return $result;
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}
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}
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}
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public function unlink($path) {
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// The item will be removed from the database, but won't be touched on the owner's filesystem
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$target = $this->sharedFolder.$path;
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// Check if the item is inside a shared folder
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if (OC_Share::getParentFolders($target)) {
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// If entry for item already exists
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if (OC_Share::getItem($target)) {
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OC_Share::unshareFromMySelf($target, false);
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} else {
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OC_Share::pullOutOfFolder($target, $target);
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OC_Share::unshareFromMySelf($target, false);
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}
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// Delete the database entry
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} else {
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OC_Share::unshareFromMySelf($target);
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}
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$this->clearFolderSizeCache($this->getInternalPath($target));
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return true;
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}
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public function rename($path1, $path2) {
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$oldTarget = $this->sharedFolder.$path1;
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$newTarget = $this->sharedFolder.$path2;
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// Check if the item is inside a shared folder
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if ($folders = OC_Share::getParentFolders($oldTarget)) {
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$root1 = substr($path1, 0, strpos($path1, "/"));
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$root2 = substr($path1, 0, strpos($path2, "/"));
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// Prevent items from being moved into different shared folders until versioning (cut and paste) and prevent items going into 'Shared'
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if ($root1 !== $root2) {
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return false;
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// Check if both paths have write permission
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} else if ($this->is_writable($path1) && $this->is_writable($path2)) {
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$oldSource = $this->getSourcePath($path1);
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$newSource = $folders['source'].substr($newTarget, strlen($folders['target']));
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if ($oldSource) {
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$storage = OC_Filesystem::getStorage($oldSource);
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return $storage->rename($this->getInternalPath($oldSource), $this->getInternalPath($newSource));
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}
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// If the user doesn't have write permission, items can only be renamed and not moved
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} else if (dirname($path1) !== dirname($path2)) {
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return false;
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// The item will be renamed in the database, but won't be touched on the owner's filesystem
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} else {
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OC_Share::pullOutOfFolder($oldTarget, $newTarget);
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// If this is a folder being renamed, call setTarget in case there are any database entries inside the folder
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if (self::is_dir($path1)) {
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OC_Share::setTarget($oldTarget, $newTarget);
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}
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}
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} else {
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OC_Share::setTarget($oldTarget, $newTarget);
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}
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$this->clearFolderSizeCache($this->getInternalPath($oldTarget));
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$this->clearFolderSizeCache($this->getInternalPath($newTarget));
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return true;
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}
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public function copy($path1, $path2) {
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if ($path2 == "" || $path2 == "/") {
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// TODO Construct new shared item or should this not be allowed?
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} else {
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if ($this->is_writable($path2)) {
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$tmpFile = $this->toTmpFile($path1);
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$result = $this->fromTmpFile($tmpFile, $path2);
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if ($result) {
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$this->clearFolderSizeCache($path2);
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}
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return $result;
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} else {
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return false;
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}
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}
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}
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public function fopen($path, $mode) {
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$source = $this->getSourcePath($path);
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if ($source) {
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$info = array(
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'target' => $this->sharedFolder.$path,
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'source' => $source,
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'mode' => $mode,
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);
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OCP\Util::emitHook('OC_Filestorage_Shared', 'fopen', $info);
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$storage = OC_Filesystem::getStorage($source);
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return $storage->fopen($this->getInternalPath($source), $mode);
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}
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}
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public function toTmpFile($path) {
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$source = $this->getSourcePath($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->toTmpFile($this->getInternalPath($source));
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}
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}
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public function fromTmpFile($tmpFile, $path) {
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if ($this->is_writable($path)) {
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$source = $this->getSourcePath($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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$result = $storage->fromTmpFile($tmpFile, $this->getInternalPath($source));
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if ($result) {
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$this->clearFolderSizeCache($path);
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}
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return $result;
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}
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} else {
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return false;
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}
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}
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public function getMimeType($path) {
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if ($path == "" || $path == "/") {
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return 'httpd/unix-directory';
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}
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$source = $this->getSourcePath($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->getMimeType($this->getInternalPath($source));
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}
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}
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public function hash($type, $path, $raw) {
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$source = $this->getSourcePath($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->hash($type, $this->getInternalPath($source), $raw);
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}
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}
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public function free_space($path) {
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$source = $this->getSourcePath($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->free_space($this->getInternalPath($source));
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}
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}
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public function search($query) {
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return $this->searchInDir($query);
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}
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protected function searchInDir($query, $path = "") {
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$files = array();
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if ($dh = $this->opendir($path)) {
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while (($filename = readdir($dh)) !== false) {
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if ($filename != "." && $filename != "..") {
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if (strstr(strtolower($filename), strtolower($query))) {
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$files[] = $path."/".$filename;
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}
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if ($this->is_dir($path."/".$filename)) {
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$files = array_merge($files, $this->searchInDir($query, $path."/".$filename));
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}
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}
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}
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}
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return $files;
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}
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public function getLocalFile($path) {
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$source = $this->getSourcePath($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->getLocalFile($this->getInternalPath($source));
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}
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}
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public function touch($path, $mtime=null){
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$source = $this->getSourcePath($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->touch($this->getInternalPath($source),$time);
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}
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}
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public static function setup($options) {
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$user_dir = $options['user_dir'];
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OC_Filesystem::mount('OC_Filestorage_Shared', array('sharedFolder' => '/Shared'), $user_dir.'/Shared/');
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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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* @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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//TODO
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return false;
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}
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}
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