615 lines
17 KiB
PHP
615 lines
17 KiB
PHP
<?php
|
|
/**
|
|
* @author Bart Visscher <bartv@thisnet.nl>
|
|
* @author Björn Schießle <schiessle@owncloud.com>
|
|
* @author Joas Schilling <nickvergessen@owncloud.com>
|
|
* @author Michael Gapczynski <GapczynskiM@gmail.com>
|
|
* @author Morris Jobke <hey@morrisjobke.de>
|
|
* @author Robin Appelman <icewind@owncloud.com>
|
|
* @author Robin McCorkell <rmccorkell@karoshi.org.uk>
|
|
* @author scambra <sergio@entrecables.com>
|
|
* @author Vincent Petry <pvince81@owncloud.com>
|
|
*
|
|
* @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;
|
|
|
|
use OC\Files\Cache\ChangePropagator;
|
|
use OC\Files\Filesystem;
|
|
use OCA\Files_Sharing\ISharedStorage;
|
|
use OCA\Files_Sharing\Propagator;
|
|
use OCA\Files_Sharing\SharedMount;
|
|
|
|
/**
|
|
* Convert target path to source path and pass the function call to the correct storage provider
|
|
*/
|
|
class Shared extends \OC\Files\Storage\Common implements ISharedStorage {
|
|
|
|
private $share; // the shared resource
|
|
private $files = array();
|
|
private static $isInitialized = array();
|
|
|
|
public function __construct($arguments) {
|
|
$this->share = $arguments['share'];
|
|
}
|
|
|
|
/**
|
|
* get id of the mount point
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getId() {
|
|
return 'shared::' . $this->getMountPoint();
|
|
}
|
|
|
|
/**
|
|
* get file cache of the shared item source
|
|
*
|
|
* @return int
|
|
*/
|
|
public function getSourceId() {
|
|
return (int)$this->share['file_source'];
|
|
}
|
|
|
|
/**
|
|
* Get the source file path, permissions, and owner for a shared file
|
|
*
|
|
* @param string $target Shared target file path
|
|
* @return Returns array with the keys path, permissions, and owner or false if not found
|
|
*/
|
|
public function getFile($target) {
|
|
if (!isset($this->files[$target])) {
|
|
// Check for partial files
|
|
if (pathinfo($target, PATHINFO_EXTENSION) === 'part') {
|
|
$source = \OC_Share_Backend_File::getSource(substr($target, 0, -5), $this->getMountPoint(), $this->getItemType());
|
|
if ($source) {
|
|
$source['path'] .= '.part';
|
|
// All partial files have delete permission
|
|
$source['permissions'] |= \OCP\Constants::PERMISSION_DELETE;
|
|
}
|
|
} else {
|
|
$source = \OC_Share_Backend_File::getSource($target, $this->getMountPoint(), $this->getItemType());
|
|
}
|
|
$this->files[$target] = $source;
|
|
}
|
|
return $this->files[$target];
|
|
}
|
|
|
|
/**
|
|
* Get the source file path for a shared file
|
|
*
|
|
* @param string $target Shared target file path
|
|
* @return string|false source file path or false if not found
|
|
*/
|
|
public function getSourcePath($target) {
|
|
$source = $this->getFile($target);
|
|
if ($source) {
|
|
if (!isset($source['fullPath'])) {
|
|
\OC\Files\Filesystem::initMountPoints($source['fileOwner']);
|
|
$mount = \OC\Files\Filesystem::getMountByNumericId($source['storage']);
|
|
if (is_array($mount) && !empty($mount)) {
|
|
$this->files[$target]['fullPath'] = $mount[key($mount)]->getMountPoint() . $source['path'];
|
|
} else {
|
|
$this->files[$target]['fullPath'] = false;
|
|
\OCP\Util::writeLog('files_sharing', "Unable to get mount for shared storage '" . $source['storage'] . "' user '" . $source['fileOwner'] . "'", \OCP\Util::ERROR);
|
|
}
|
|
}
|
|
return $this->files[$target]['fullPath'];
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Get the permissions granted for a shared file
|
|
*
|
|
* @param string $target Shared target file path
|
|
* @return int CRUDS permissions granted
|
|
*/
|
|
public function getPermissions($target = '') {
|
|
$permissions = $this->share['permissions'];
|
|
// part files and the mount point always have delete permissions
|
|
if ($target === '' || pathinfo($target, PATHINFO_EXTENSION) === 'part') {
|
|
$permissions |= \OCP\Constants::PERMISSION_DELETE;
|
|
}
|
|
|
|
if (\OCP\Util::isSharingDisabledForUser()) {
|
|
$permissions &= ~\OCP\Constants::PERMISSION_SHARE;
|
|
}
|
|
|
|
return $permissions;
|
|
}
|
|
|
|
public function mkdir($path) {
|
|
if ($path == '' || $path == '/' || !$this->isCreatable(dirname($path))) {
|
|
return false;
|
|
} else if ($source = $this->getSourcePath($path)) {
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->mkdir($internalPath);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Delete the directory if DELETE permission is granted
|
|
*
|
|
* @param string $path
|
|
* @return boolean
|
|
*/
|
|
public function rmdir($path) {
|
|
|
|
// never delete a share mount point
|
|
if (empty($path)) {
|
|
return false;
|
|
}
|
|
|
|
if (($source = $this->getSourcePath($path)) && $this->isDeletable($path)) {
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->rmdir($internalPath);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function opendir($path) {
|
|
$source = $this->getSourcePath($path);
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->opendir($internalPath);
|
|
}
|
|
|
|
public function is_dir($path) {
|
|
$source = $this->getSourcePath($path);
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->is_dir($internalPath);
|
|
}
|
|
|
|
public function is_file($path) {
|
|
if ($source = $this->getSourcePath($path)) {
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->is_file($internalPath);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function stat($path) {
|
|
if ($path == '' || $path == '/') {
|
|
$stat['size'] = $this->filesize($path);
|
|
$stat['mtime'] = $this->filemtime($path);
|
|
return $stat;
|
|
} else if ($source = $this->getSourcePath($path)) {
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->stat($internalPath);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function filetype($path) {
|
|
if ($path == '' || $path == '/') {
|
|
return 'dir';
|
|
} else if ($source = $this->getSourcePath($path)) {
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->filetype($internalPath);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function filesize($path) {
|
|
$source = $this->getSourcePath($path);
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->filesize($internalPath);
|
|
}
|
|
|
|
public function isCreatable($path) {
|
|
return ($this->getPermissions($path) & \OCP\Constants::PERMISSION_CREATE);
|
|
}
|
|
|
|
public function isReadable($path) {
|
|
$isReadable = false;
|
|
if ($source = $this->getSourcePath($path)) {
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
$isReadable = $storage->isReadable($internalPath);
|
|
}
|
|
|
|
return $isReadable && $this->file_exists($path);
|
|
}
|
|
|
|
public function isUpdatable($path) {
|
|
return ($this->getPermissions($path) & \OCP\Constants::PERMISSION_UPDATE);
|
|
}
|
|
|
|
public function isDeletable($path) {
|
|
return ($this->getPermissions($path) & \OCP\Constants::PERMISSION_DELETE);
|
|
}
|
|
|
|
public function isSharable($path) {
|
|
if (\OCP\Util::isSharingDisabledForUser()) {
|
|
return false;
|
|
}
|
|
return ($this->getPermissions($path) & \OCP\Constants::PERMISSION_SHARE);
|
|
}
|
|
|
|
public function file_exists($path) {
|
|
if ($path == '' || $path == '/') {
|
|
return true;
|
|
} else if ($source = $this->getSourcePath($path)) {
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->file_exists($internalPath);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function filemtime($path) {
|
|
$source = $this->getSourcePath($path);
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->filemtime($internalPath);
|
|
}
|
|
|
|
public function file_get_contents($path) {
|
|
$source = $this->getSourcePath($path);
|
|
if ($source) {
|
|
$info = array(
|
|
'target' => $this->getMountPoint() . $path,
|
|
'source' => $source,
|
|
);
|
|
\OCP\Util::emitHook('\OC\Files\Storage\Shared', 'file_get_contents', $info);
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->file_get_contents($internalPath);
|
|
}
|
|
}
|
|
|
|
public function file_put_contents($path, $data) {
|
|
if ($source = $this->getSourcePath($path)) {
|
|
// Check if permission is granted
|
|
if (($this->file_exists($path) && !$this->isUpdatable($path))
|
|
|| ($this->is_dir($path) && !$this->isCreatable($path))
|
|
) {
|
|
return false;
|
|
}
|
|
$info = array(
|
|
'target' => $this->getMountPoint() . '/' . $path,
|
|
'source' => $source,
|
|
);
|
|
\OCP\Util::emitHook('\OC\Files\Storage\Shared', 'file_put_contents', $info);
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
$result = $storage->file_put_contents($internalPath, $data);
|
|
return $result;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Delete the file if DELETE permission is granted
|
|
*
|
|
* @param string $path
|
|
* @return boolean
|
|
*/
|
|
public function unlink($path) {
|
|
|
|
// never delete a share mount point
|
|
if (empty($path)) {
|
|
return false;
|
|
}
|
|
if ($source = $this->getSourcePath($path)) {
|
|
if ($this->isDeletable($path)) {
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->unlink($internalPath);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function rename($path1, $path2) {
|
|
|
|
// we need the paths relative to data/user/files
|
|
$relPath1 = $this->getMountPoint() . '/' . $path1;
|
|
$relPath2 = $this->getMountPoint() . '/' . $path2;
|
|
$pathinfo = pathinfo($relPath1);
|
|
|
|
$isPartFile = (isset($pathinfo['extension']) && $pathinfo['extension'] === 'part');
|
|
$targetExists = $this->file_exists($path2);
|
|
$sameFolder = (dirname($relPath1) === dirname($relPath2));
|
|
if ($targetExists || ($sameFolder && !$isPartFile)) {
|
|
// note that renaming a share mount point is always allowed
|
|
if (!$this->isUpdatable('')) {
|
|
return false;
|
|
}
|
|
} else {
|
|
if (!$this->isCreatable('')) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* @var \OC\Files\Storage\Storage $sourceStorage
|
|
*/
|
|
list($sourceStorage, $sourceInternalPath) = $this->resolvePath($path1);
|
|
/**
|
|
* @var \OC\Files\Storage\Storage $targetStorage
|
|
*/
|
|
list($targetStorage, $targetInternalPath) = $this->resolvePath($path2);
|
|
|
|
return $targetStorage->moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
|
|
}
|
|
|
|
public function copy($path1, $path2) {
|
|
// Copy the file if CREATE permission is granted
|
|
if ($this->isCreatable(dirname($path2))) {
|
|
/**
|
|
* @var \OC\Files\Storage\Storage $sourceStorage
|
|
*/
|
|
list($sourceStorage, $sourceInternalPath) = $this->resolvePath($path1);
|
|
/**
|
|
* @var \OC\Files\Storage\Storage $targetStorage
|
|
*/
|
|
list($targetStorage, $targetInternalPath) = $this->resolvePath($path2);
|
|
|
|
return $targetStorage->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function fopen($path, $mode) {
|
|
if ($source = $this->getSourcePath($path)) {
|
|
switch ($mode) {
|
|
case 'r+':
|
|
case 'rb+':
|
|
case 'w+':
|
|
case 'wb+':
|
|
case 'x+':
|
|
case 'xb+':
|
|
case 'a+':
|
|
case 'ab+':
|
|
case 'w':
|
|
case 'wb':
|
|
case 'x':
|
|
case 'xb':
|
|
case 'a':
|
|
case 'ab':
|
|
$creatable = $this->isCreatable($path);
|
|
$updatable = $this->isUpdatable($path);
|
|
// if neither permissions given, no need to continue
|
|
if (!$creatable && !$updatable) {
|
|
return false;
|
|
}
|
|
|
|
$exists = $this->file_exists($path);
|
|
// if a file exists, updatable permissions are required
|
|
if ($exists && !$updatable) {
|
|
return false;
|
|
}
|
|
|
|
// part file is allowed if !$creatable but the final file is $updatable
|
|
if (pathinfo($path, PATHINFO_EXTENSION) !== 'part') {
|
|
if (!$exists && !$creatable) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
$info = array(
|
|
'target' => $this->getMountPoint() . $path,
|
|
'source' => $source,
|
|
'mode' => $mode,
|
|
);
|
|
\OCP\Util::emitHook('\OC\Files\Storage\Shared', 'fopen', $info);
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->fopen($internalPath, $mode);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function getMimeType($path) {
|
|
if ($source = $this->getSourcePath($path)) {
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->getMimeType($internalPath);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function free_space($path) {
|
|
$source = $this->getSourcePath($path);
|
|
if ($source) {
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->free_space($internalPath);
|
|
}
|
|
return \OCP\Files\FileInfo::SPACE_UNKNOWN;
|
|
}
|
|
|
|
public function getLocalFile($path) {
|
|
if ($source = $this->getSourcePath($path)) {
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->getLocalFile($internalPath);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function touch($path, $mtime = null) {
|
|
if ($source = $this->getSourcePath($path)) {
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->touch($internalPath, $mtime);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* return mount point of share, relative to data/user/files
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getMountPoint() {
|
|
return $this->share['file_target'];
|
|
}
|
|
|
|
public function setMountPoint($path) {
|
|
$this->share['file_target'] = $path;
|
|
}
|
|
|
|
public function getShareType() {
|
|
return $this->share['share_type'];
|
|
}
|
|
|
|
/**
|
|
* does the group share already has a user specific unique name
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function uniqueNameSet() {
|
|
return (isset($this->share['unique_name']) && $this->share['unique_name']);
|
|
}
|
|
|
|
/**
|
|
* the share now uses a unique name of this user
|
|
*
|
|
* @brief the share now uses a unique name of this user
|
|
*/
|
|
public function setUniqueName() {
|
|
$this->share['unique_name'] = true;
|
|
}
|
|
|
|
/**
|
|
* get share ID
|
|
*
|
|
* @return integer unique share ID
|
|
*/
|
|
public function getShareId() {
|
|
return $this->share['id'];
|
|
}
|
|
|
|
/**
|
|
* get the user who shared the file
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getSharedFrom() {
|
|
return $this->share['uid_owner'];
|
|
}
|
|
|
|
/**
|
|
* @return array
|
|
*/
|
|
public function getShare() {
|
|
return $this->share;
|
|
}
|
|
|
|
/**
|
|
* return share type, can be "file" or "folder"
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getItemType() {
|
|
return $this->share['item_type'];
|
|
}
|
|
|
|
public function hasUpdated($path, $time) {
|
|
return $this->filemtime($path) > $time;
|
|
}
|
|
|
|
public function getCache($path = '', $storage = null) {
|
|
if (!$storage) {
|
|
$storage = $this;
|
|
}
|
|
return new \OC\Files\Cache\Shared_Cache($storage);
|
|
}
|
|
|
|
public function getScanner($path = '', $storage = null) {
|
|
if (!$storage) {
|
|
$storage = $this;
|
|
}
|
|
return new \OC\Files\Cache\SharedScanner($storage);
|
|
}
|
|
|
|
public function getWatcher($path = '', $storage = null) {
|
|
if (!$storage) {
|
|
$storage = $this;
|
|
}
|
|
return new \OC\Files\Cache\Shared_Watcher($storage);
|
|
}
|
|
|
|
public function getOwner($path) {
|
|
if ($path == '') {
|
|
$path = $this->getMountPoint();
|
|
}
|
|
$source = $this->getFile($path);
|
|
if ($source) {
|
|
return $source['fileOwner'];
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function getETag($path) {
|
|
if ($path == '') {
|
|
$path = $this->getMountPoint();
|
|
}
|
|
if ($source = $this->getSourcePath($path)) {
|
|
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source);
|
|
return $storage->getETag($internalPath);
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* unshare complete storage, also the grouped shares
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function unshareStorage() {
|
|
$result = true;
|
|
if (!empty($this->share['grouped'])) {
|
|
foreach ($this->share['grouped'] as $share) {
|
|
$result = $result && \OCP\Share::unshareFromSelf($share['item_type'], $share['file_target']);
|
|
}
|
|
}
|
|
$result = $result && \OCP\Share::unshareFromSelf($this->getItemType(), $this->getMountPoint());
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Resolve the path for the source of the share
|
|
*
|
|
* @param string $path
|
|
* @return array
|
|
*/
|
|
private function resolvePath($path) {
|
|
$source = $this->getSourcePath($path);
|
|
return \OC\Files\Filesystem::resolvePath($source);
|
|
}
|
|
|
|
/**
|
|
* @param \OCP\Files\Storage $sourceStorage
|
|
* @param string $sourceInternalPath
|
|
* @param string $targetInternalPath
|
|
* @return bool
|
|
*/
|
|
public function copyFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
|
|
/** @var \OCP\Files\Storage $targetStorage */
|
|
list($targetStorage, $targetInternalPath) = $this->resolvePath($targetInternalPath);
|
|
return $targetStorage->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
|
|
}
|
|
|
|
/**
|
|
* @param \OCP\Files\Storage $sourceStorage
|
|
* @param string $sourceInternalPath
|
|
* @param string $targetInternalPath
|
|
* @return bool
|
|
*/
|
|
public function moveFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
|
|
/** @var \OCP\Files\Storage $targetStorage */
|
|
list($targetStorage, $targetInternalPath) = $this->resolvePath($targetInternalPath);
|
|
return $targetStorage->moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
|
|
}
|
|
}
|