Merge pull request #24661 from owncloud/files_sharing-psr4

Move Files_Sharing to PSR-4

1 files changed, 226 insertions, 0 deletions

diff --git a/apps/files_sharing/lib/SharedMount.php b/apps/files_sharing/lib/SharedMount.php
new file mode 100644
index 00000000000..4aed80b12b2
--- /dev/null
+++ b/apps/files_sharing/lib/SharedMount.php
@@ -0,0 +1,226 @@
+<?php
+/**
+ * @author Björn Schießle <schiessle@owncloud.com>
+ * @author Joas Schilling <nickvergessen@owncloud.com>
+ * @author Morris Jobke <hey@morrisjobke.de>
+ * @author Robin Appelman <icewind@owncloud.com>
+ * @author Roeland Jago Douma <rullzer@owncloud.com>
+ *
+ * @copyright Copyright (c) 2016, 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 OCA\Files_Sharing;
+
+use OC\Files\Filesystem;
+use OC\Files\Mount\MountPoint;
+use OC\Files\Mount\MoveableMount;
+use OC\Files\View;
+
+/**
+ * Shared mount points can be moved by the user
+ */
+class SharedMount extends MountPoint implements MoveableMount {
+	/**
+	 * @var \OC\Files\Storage\Shared $storage
+	 */
+	protected $storage = null;
+
+	/**
+	 * @var \OC\Files\View
+	 */
+	private $recipientView;
+
+	/**
+	 * @var string
+	 */
+	private $user;
+
+	/** @var \OCP\Share\IShare */
+	private $share;
+
+	/**
+	 * @param string $storage
+	 * @param SharedMount[] $mountpoints
+	 * @param array|null $arguments
+	 * @param \OCP\Files\Storage\IStorageFactory $loader
+	 */
+	public function __construct($storage, array $mountpoints, $arguments = null, $loader = null) {
+		$this->user = $arguments['user'];
+		$this->recipientView = new View('/' . $this->user . '/files');
+		$this->share = $arguments['newShare'];
+		$newMountPoint = $this->verifyMountPoint($this->share, $mountpoints);
+		$absMountPoint = '/' . $this->user . '/files' . $newMountPoint;
+		$arguments['ownerView'] = new View('/' . $this->share->getShareOwner() . '/files');
+		parent::__construct($storage, $absMountPoint, $arguments, $loader);
+	}
+
+	/**
+	 * check if the parent folder exists otherwise move the mount point up
+	 *
+	 * @param \OCP\Share\IShare $share
+	 * @param SharedMount[] $mountpoints
+	 * @return string
+	 */
+	private function verifyMountPoint(\OCP\Share\IShare $share, array $mountpoints) {
+
+		$mountPoint = basename($share->getTarget());
+		$parent = dirname($share->getTarget());
+
+		if (!$this->recipientView->is_dir($parent)) {
+			$parent = Helper::getShareFolder();
+		}
+
+		$newMountPoint = $this->generateUniqueTarget(
+			\OC\Files\Filesystem::normalizePath($parent . '/' . $mountPoint),
+			$this->recipientView,
+			$mountpoints
+		);
+
+		if ($newMountPoint !== $share->getTarget()) {
+			$this->updateFileTarget($newMountPoint, $share);
+		}
+
+		return $newMountPoint;
+	}
+
+	/**
+	 * update fileTarget in the database if the mount point changed
+	 *
+	 * @param string $newPath
+	 * @param \OCP\Share\IShare $share
+	 * @return bool
+	 */
+	private function updateFileTarget($newPath, &$share) {
+		$share->setTarget($newPath);
+		\OC::$server->getShareManager()->moveShare($share, $this->user);
+	}
+
+
+	/**
+	 * @param string $path
+	 * @param View $view
+	 * @param SharedMount[] $mountpoints
+	 * @return mixed
+	 */
+	private function generateUniqueTarget($path, $view, array $mountpoints) {
+		$pathinfo = pathinfo($path);
+		$ext = (isset($pathinfo['extension'])) ? '.'.$pathinfo['extension'] : '';
+		$name = $pathinfo['filename'];
+		$dir = $pathinfo['dirname'];
+
+		// Helper function to find existing mount points
+		$mountpointExists = function($path) use ($mountpoints) {
+			foreach ($mountpoints as $mountpoint) {
+				if ($mountpoint->getShare()->getTarget() === $path) {
+					return true;
+				}
+			}
+			return false;
+		};
+
+		$i = 2;
+		while ($view->file_exists($path) || $mountpointExists($path)) {
+			$path = Filesystem::normalizePath($dir . '/' . $name . ' ('.$i.')' . $ext);
+			$i++;
+		}
+
+		return $path;
+	}
+
+	/**
+	 * Format a path to be relative to the /user/files/ directory
+	 *
+	 * @param string $path the absolute path
+	 * @return string e.g. turns '/admin/files/test.txt' into '/test.txt'
+	 * @throws \OCA\Files_Sharing\Exceptions\BrokenPath
+	 */
+	protected function stripUserFilesPath($path) {
+		$trimmed = ltrim($path, '/');
+		$split = explode('/', $trimmed);
+
+		// it is not a file relative to data/user/files
+		if (count($split) < 3 || $split[1] !== 'files') {
+			\OCP\Util::writeLog('file sharing',
+				'Can not strip userid and "files/" from path: ' . $path,
+				\OCP\Util::ERROR);
+			throw new \OCA\Files_Sharing\Exceptions\BrokenPath('Path does not start with /user/files', 10);
+		}
+
+		// skip 'user' and 'files'
+		$sliced = array_slice($split, 2);
+		$relPath = implode('/', $sliced);
+
+		return '/' . $relPath;
+	}
+
+	/**
+	 * Move the mount point to $target
+	 *
+	 * @param string $target the target mount point
+	 * @return bool
+	 */
+	public function moveMount($target) {
+
+		$relTargetPath = $this->stripUserFilesPath($target);
+		$share = $this->storage->getShare();
+
+		$result = true;
+
+		try {
+			$this->updateFileTarget($relTargetPath, $share);
+			$this->setMountPoint($target);
+			$this->storage->setMountPoint($relTargetPath);
+		} catch (\Exception $e) {
+			\OCP\Util::writeLog('file sharing',
+				'Could not rename mount point for shared folder "' . $this->getMountPoint() . '" to "' . $target . '"',
+				\OCP\Util::ERROR);
+		}
+
+		return $result;
+	}
+
+	/**
+	 * Remove the mount points
+	 *
+	 * @return bool
+	 */
+	public function removeMount() {
+		$mountManager = \OC\Files\Filesystem::getMountManager();
+		/** @var $storage \OC\Files\Storage\Shared */
+		$storage = $this->getStorage();
+		$result = $storage->unshareStorage();
+		$mountManager->removeMount($this->mountPoint);
+
+		return $result;
+	}
+
+	/**
+	 * @return \OCP\Share\IShare
+	 */
+	public function getShare() {
+		return $this->share;
+	}
+
+	/**
+	 * Get the file id of the root of the storage
+	 *
+	 * @return int
+	 */
+	public function getStorageRootId() {
+		return $this->share->getNodeId();
+	}
+}