Move dav app to PSR-4 (#24527)

* Move Application to correct namespace and PSR-4 it

* Move dav app to PSR-4

1 files changed, 200 insertions, 0 deletions

diff --git a/apps/dav/lib/DAV/GroupPrincipalBackend.php b/apps/dav/lib/DAV/GroupPrincipalBackend.php
new file mode 100644
index 00000000000..e0568639784
--- /dev/null
+++ b/apps/dav/lib/DAV/GroupPrincipalBackend.php
@@ -0,0 +1,200 @@
+<?php
+/**
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ *
+ * @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\DAV\DAV;
+
+use OCP\IGroup;
+use OCP\IGroupManager;
+use OCP\IUser;
+use Sabre\DAV\Exception;
+use \Sabre\DAV\PropPatch;
+use Sabre\DAVACL\PrincipalBackend\BackendInterface;
+
+class GroupPrincipalBackend implements BackendInterface {
+
+	const PRINCIPAL_PREFIX = 'principals/groups';
+
+	/** @var IGroupManager */
+	private $groupManager;
+
+	/**
+	 * @param IGroupManager $IGroupManager
+	 */
+	public function __construct(IGroupManager $IGroupManager) {
+		$this->groupManager = $IGroupManager;
+	}
+
+	/**
+	 * Returns a list of principals based on a prefix.
+	 *
+	 * This prefix will often contain something like 'principals'. You are only
+	 * expected to return principals that are in this base path.
+	 *
+	 * You are expected to return at least a 'uri' for every user, you can
+	 * return any additional properties if you wish so. Common properties are:
+	 *   {DAV:}displayname
+	 *
+	 * @param string $prefixPath
+	 * @return string[]
+	 */
+	public function getPrincipalsByPrefix($prefixPath) {
+		$principals = [];
+
+		if ($prefixPath === self::PRINCIPAL_PREFIX) {
+			foreach($this->groupManager->search('') as $user) {
+				$principals[] = $this->groupToPrincipal($user);
+			}
+		}
+
+		return $principals;
+	}
+
+	/**
+	 * Returns a specific principal, specified by it's path.
+	 * The returned structure should be the exact same as from
+	 * getPrincipalsByPrefix.
+	 *
+	 * @param string $path
+	 * @return array
+	 */
+	public function getPrincipalByPath($path) {
+		$elements = explode('/', $path);
+		if ($elements[0] !== 'principals') {
+			return null;
+		}
+		if ($elements[1] !== 'groups') {
+			return null;
+		}
+		$name = $elements[2];
+		$group = $this->groupManager->get($name);
+
+		if (!is_null($group)) {
+			return $this->groupToPrincipal($group);
+		}
+
+		return null;
+	}
+
+	/**
+	 * Returns the list of members for a group-principal
+	 *
+	 * @param string $principal
+	 * @return string[]
+	 * @throws Exception
+	 */
+	public function getGroupMemberSet($principal) {
+		$elements = explode('/', $principal);
+		if ($elements[0] !== 'principals') {
+			return [];
+		}
+		if ($elements[1] !== 'groups') {
+			return [];
+		}
+		$name = $elements[2];
+		$group = $this->groupManager->get($name);
+
+		if (is_null($group)) {
+			return [];
+		}
+
+		return array_map(function($user) {
+			return $this->userToPrincipal($user);
+		}, $group->getUsers());
+	}
+
+	/**
+	 * Returns the list of groups a principal is a member of
+	 *
+	 * @param string $principal
+	 * @return array
+	 * @throws Exception
+	 */
+	public function getGroupMembership($principal) {
+		return [];
+	}
+
+	/**
+	 * Updates the list of group members for a group principal.
+	 *
+	 * The principals should be passed as a list of uri's.
+	 *
+	 * @param string $principal
+	 * @param string[] $members
+	 * @throws Exception
+	 */
+	public function setGroupMemberSet($principal, array $members) {
+		throw new Exception('Setting members of the group is not supported yet');
+	}
+
+	/**
+	 * @param string $path
+	 * @param PropPatch $propPatch
+	 * @return int
+	 */
+	function updatePrincipal($path, PropPatch $propPatch) {
+		return 0;
+	}
+
+	/**
+	 * @param string $prefixPath
+	 * @param array $searchProperties
+	 * @param string $test
+	 * @return array
+	 */
+	function searchPrincipals($prefixPath, array $searchProperties, $test = 'allof') {
+		return [];
+	}
+
+	/**
+	 * @param string $uri
+	 * @param string $principalPrefix
+	 * @return string
+	 */
+	function findByUri($uri, $principalPrefix) {
+		return '';
+	}
+
+	/**
+	 * @param IGroup $group
+	 * @return array
+	 */
+	protected function groupToPrincipal($group) {
+		$groupId = $group->getGID();
+		$principal = [
+			'uri' => "principals/groups/$groupId",
+			'{DAV:}displayname' => $groupId,
+		];
+
+		return $principal;
+	}
+
+	/**
+	 * @param IUser $user
+	 * @return array
+	 */
+	protected function userToPrincipal($user) {
+		$principal = [
+			'uri' => 'principals/users/' . $user->getUID(),
+			'{DAV:}displayname' => $user->getDisplayName(),
+		];
+
+		return $principal;
+	}
+}