owncloud/core

<?php
/**
 * @author Thomas Müller <thomas.mueller@tmit.eu>
 *
 * @copyright Copyright (c) 2019, ownCloud GmbH
 * @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 OCA\DAV\TrashBin;

use OCA\DAV\Connector\Sabre\Exception\FileLocked;
use OCP\Files\FileInfo;
use OCP\Files\ForbiddenException;
use OCP\Files\StorageNotAvailableException;
use OCP\Lock\LockedException;
use Sabre\DAV\Exception\Forbidden;
use Sabre\DAV\Exception\ServiceUnavailable as SabreServiceUnavailable;

abstract class AbstractTrashBinNode implements ITrashBinNode {
    /**
     * @var FileInfo
     */
    protected $fileInfo;
    /**
     * @var TrashBinManager
     */
    protected $trashBinManager;
    /**
     * @var string
     */
    protected $user;

    public function __construct(
        string $user,
        FileInfo $fileInfo,
        TrashBinManager $trashBinManager
    ) {
        $this->fileInfo = $fileInfo;
        $this->trashBinManager = $trashBinManager;
        $this->user = $user;
    }

    /**
     * Returns the name of the node.
     *
     * This is used to generate the url.
     *
     * @return string
     */
    public function getName() {
        return (string)$this->fileInfo->getId();
    }

    /**
     * Returns the mime-type for a file
     *
     * If null is returned, we'll assume application/octet-stream
     *
     * @return string|null
     */
    public function getContentType() {
        return $this->fileInfo->getMimetype();
    }

    public function getETag() {
        return '"' . $this->fileInfo->getEtag() . '"';
    }

    public function getLastModified() {
        return $this->fileInfo->getMtime();
    }
    public function getSize() {
        return $this->fileInfo->getSize();
    }

    public function getOriginalFileName() : string {
        $path = $this->getPathInTrash();
        if (\count($path) === 1) {
            $path = \end($path);
            $pathInfo = \pathinfo($path);
            return $pathInfo['filename'];
        }
        return \end($path);
    }

    public function getOriginalLocation() : string {
        $pathElements = $this->getPathInTrash();
        $path = $pathElements[0];
        $pathParts = \pathinfo($path);
        $timestamp = (int)\substr($pathParts['extension'], 1);

        $pathElements[0] = $pathParts['filename'];
        $originalPath = \implode('/', $pathElements);

        $location = $this->trashBinManager->getLocation($this->user, $pathParts['filename'], $timestamp);
        if ($location !== '.') {
            $originalPath = $location . '/' . $originalPath;
        }

        return $originalPath;
    }

    public function getDeleteTimestamp() : int {
        $path = $this->getPathInTrash();
        $path = $path[0];
        $pathParts = \pathinfo($path);
        return (int)\substr($pathParts['extension'], 1);
    }

    /**
     * @param string $targetLocation
     * @return bool
     */
    public function restore(string $targetLocation): bool {
        try {
            return $this->trashBinManager->restore($this->user, $this, $targetLocation);
        } catch (ForbiddenException $ex) {
            throw new \OCA\DAV\Connector\Sabre\Exception\Forbidden($ex->getMessage(), $ex->getRetry());
        } catch (LockedException $e) {
            throw new FileLocked($e->getMessage(), $e->getCode(), $e);
        } catch (StorageNotAvailableException $e) {
            throw new SabreServiceUnavailable($e->getMessage());
        }
    }

    public function delete() {
        try {
            $this->trashBinManager->delete($this->user, $this);
        } catch (ForbiddenException $ex) {
            throw new \OCA\DAV\Connector\Sabre\Exception\Forbidden($ex->getMessage(), $ex->getRetry());
        } catch (LockedException $e) {
            throw new FileLocked($e->getMessage(), $e->getCode(), $e);
        } catch (StorageNotAvailableException $e) {
            throw new SabreServiceUnavailable($e->getMessage());
        }
    }

    /**
     * @return array
     */
    public function getPathInTrash() {
        $path = $this->fileInfo->getPath();
        $path = \explode('/', $path);
        return \array_splice($path, 4);
    }

    public function setName($name) {
        throw new Forbidden('Permission denied to rename this resource');
    }
}