151 lines
4.3 KiB
PHP
151 lines
4.3 KiB
PHP
<?php
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/**
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* Copyright (c) 2014 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 OCA\Files_Sharing;
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use OC\Files\Mount\Mount;
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use OC\Files\Mount\MoveableMount;
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/**
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* Shared mount points can be moved by the user
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*/
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class SharedMount extends Mount implements MoveableMount {
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/**
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* @var \OC\Files\Storage\Shared $storage
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*/
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protected $storage = null;
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public function __construct($storage, $mountpoint, $arguments = null, $loader = null) {
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// first update the mount point before creating the parent
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$newMountPoint = self::verifyMountPoint($arguments['share']);
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$absMountPoint = '/' . \OCP\User::getUser() . '/files' . $newMountPoint;
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parent::__construct($storage, $absMountPoint, $arguments, $loader);
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}
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/**
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* check if the parent folder exists otherwise move the mount point up
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*/
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private static function verifyMountPoint(&$share) {
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$mountPoint = basename($share['file_target']);
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$parent = dirname($share['file_target']);
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while (!\OC\Files\Filesystem::is_dir($parent)) {
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$parent = dirname($parent);
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}
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$newMountPoint = \OCA\Files_Sharing\Helper::generateUniqueTarget(
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\OC\Files\Filesystem::normalizePath($parent . '/' . $mountPoint),
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array(),
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new \OC\Files\View('/' . \OCP\User::getUser() . '/files')
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);
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if($newMountPoint !== $share['file_target']) {
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self::updateFileTarget($newMountPoint, $share);
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$share['file_target'] = $newMountPoint;
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$share['unique_name'] = true;
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}
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return $newMountPoint;
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}
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/**
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* update fileTarget in the database if the mount point changed
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* @param string $newPath
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* @param array $share reference to the share which should be modified
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* @return type
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*/
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private static function updateFileTarget($newPath, &$share) {
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// if the user renames a mount point from a group share we need to create a new db entry
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// for the unique name
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if ($share['share_type'] === \OCP\Share::SHARE_TYPE_GROUP && empty($share['unique_name'])) {
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$query = \OC_DB::prepare('INSERT INTO `*PREFIX*share` (`item_type`, `item_source`, `item_target`,'
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.' `share_type`, `share_with`, `uid_owner`, `permissions`, `stime`, `file_source`,'
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.' `file_target`, `token`, `parent`) VALUES (?,?,?,?,?,?,?,?,?,?,?,?)');
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$arguments = array($share['item_type'], $share['item_source'], $share['item_target'],
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2, \OCP\User::getUser(), $share['uid_owner'], $share['permissions'], $share['stime'], $share['file_source'],
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$newPath, $share['token'], $share['id']);
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} else {
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// rename mount point
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$query = \OC_DB::prepare(
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'Update `*PREFIX*share`
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SET `file_target` = ?
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WHERE `id` = ?'
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);
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$arguments = array($newPath, $share['id']);
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}
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$result = $query->execute($arguments);
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return $result === 1 ? true : false;
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}
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/**
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* Format a path to be relative to the /user/files/ directory
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*
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* @param string $path the absolute path
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* @return string e.g. turns '/admin/files/test.txt' into '/test.txt'
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*/
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private function stripUserFilesPath($path) {
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$trimmed = ltrim($path, '/');
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$split = explode('/', $trimmed);
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// it is not a file relative to data/user/files
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if (count($split) < 3 || $split[1] !== 'files') {
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\OCP\Util::writeLog('file sharing',
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'Can not strip userid and "files/" from path: ' . $path,
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\OCP\Util::DEBUG);
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return false;
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}
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// skip 'user' and 'files'
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$sliced = array_slice($split, 2);
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$relPath = implode('/', $sliced);
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return '/' . $relPath;
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}
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/**
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* Move the mount point to $target
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*
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* @param string $target the target mount point
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* @return bool
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*/
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public function moveMount($target) {
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$relTargetPath = $this->stripUserFilesPath($target);
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$share = $this->storage->getShare();
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$result = $this->updateFileTarget($relTargetPath, $share);
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if ($result) {
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$this->setMountPoint($target);
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$this->storage->setUniqueName();
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$this->storage->setMountPoint($relTargetPath);
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} else {
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\OCP\Util::writeLog('file sharing',
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'Could not rename mount point for shared folder "' . $this->getMountPoint() . '" to "' . $target . '"',
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\OCP\Util::ERROR);
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}
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return $result;
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}
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/**
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* Remove the mount points
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*
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* @return bool
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*/
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public function removeMount() {
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$storage = $this->getStorage();
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$result = \OCP\Share::unshareFromSelf($storage->getItemType(), $storage->getMountPoint());
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return $result;
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}
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}
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