Adding pre oc 9.0 CardDAV endpoint for migration of old clients

apps/dav/appinfo/info.xml

@@ -14,7 +14,9 @@
 		<files>appinfo/v1/webdav.php</files>
 		<webdav>appinfo/v1/webdav.php</webdav>
 		<dav>appinfo/v2/remote.php</dav>
-	</remote>
+		<!-- carddav endpoints as used before ownCloud 9.0-->
+		<contacts>appinfo/v1/carddav.php</contacts>
+		<carddav>appinfo/v1/carddav.php</carddav>	</remote>
 	<public>
 		<webdav>appinfo/v1/publicwebdav.php</webdav>
 	</public>

apps/dav/appinfo/v1/carddav.php

@@ -0,0 +1,70 @@
+<?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/>
+ *
+ */
+
+// Backends
+use OCA\DAV\CardDAV\AddressBookRoot;
+use OCA\DAV\CardDAV\CardDavBackend;
+use OCA\DAV\Connector\Sabre\AppEnabledPlugin;
+use OCA\DAV\Connector\Sabre\Auth;
+use OCA\DAV\Connector\Sabre\ExceptionLoggerPlugin;
+use OCA\DAV\Connector\Sabre\MaintenancePlugin;
+use OCA\DAV\Connector\Sabre\Principal;
+use Sabre\CardDAV\Plugin;
+
+$authBackend = new Auth(
+	\OC::$server->getSession(),
+	\OC::$server->getUserSession(),
+	'principals/'
+);
+$principalBackend = new Principal(
+	\OC::$server->getUserManager(),
+	\OC::$server->getGroupManager(),
+	'principals/'
+);
+$db = \OC::$server->getDatabaseConnection();
+$cardDavBackend = new CardDavBackend($db, $principalBackend);
+
+// Root nodes
+$principalCollection = new \Sabre\CalDAV\Principal\Collection($principalBackend);
+$principalCollection->disableListing = true; // Disable listing
+
+$addressBookRoot = new AddressBookRoot($principalBackend, $cardDavBackend);
+$addressBookRoot->disableListing = true; // Disable listing
+
+$nodes = array(
+	$principalCollection,
+	$addressBookRoot,
+);
+
+// Fire up server
+$server = new \Sabre\DAV\Server($nodes);
+$server->httpRequest->setUrl(\OC::$server->getRequest()->getRequestUri());
+$server->setBaseUri($baseuri);
+// Add plugins
+$server->addPlugin(new MaintenancePlugin());
+$server->addPlugin(new \Sabre\DAV\Auth\Plugin($authBackend, 'ownCloud'));
+$server->addPlugin(new Plugin());
+$server->addPlugin(new \Sabre\DAVACL\Plugin());
+$server->addPlugin(new \Sabre\CardDAV\VCFExportPlugin());
+$server->addPlugin(new ExceptionLoggerPlugin('carddav', \OC::$server->getLogger()));
+
+// And off we go!
+$server->exec();

apps/dav/appinfo/v1/webdav.php

@@ -40,7 +40,8 @@ $serverFactory = new \OCA\DAV\Connector\Sabre\ServerFactory(
 // Backends
 $authBackend = new \OCA\DAV\Connector\Sabre\Auth(
 	\OC::$server->getSession(),
-	\OC::$server->getUserSession()
+	\OC::$server->getUserSession(),
+	'principals/'
 );
 $requestUri = \OC::$server->getRequest()->getRequestUri();
 

apps/dav/lib/carddav/addressbookroot.php

@@ -40,6 +40,9 @@ class AddressBookRoot extends \Sabre\CardDAV\AddressBookRoot {
 
 	function getName() {
 
+		if ($this->principalPrefix === 'principals') {
+			return parent::getName();
+		}
 		// Grabbing all the components of the principal path.
 		$parts = explode('/', $this->principalPrefix);
 

apps/dav/lib/carddav/carddavbackend.php

@@ -93,11 +93,11 @@ class CardDavBackend implements BackendInterface, SyncSupport {
 	 * @return array
 	 */
 	function getAddressBooksForUser($principalUri) {
+		$principalUri = $this->convertPrincipal($principalUri, true);
 		$query = $this->db->getQueryBuilder();
 		$query->select(['id', 'uri', 'displayname', 'principaluri', 'description', 'synctoken'])
 			->from('addressbooks')
-			->where($query->expr()->eq('principaluri', $query->createParameter('principaluri')))
-			->setParameter('principaluri', $principalUri);
+			->where($query->expr()->eq('principaluri', $query->createNamedParameter($principalUri)));
 
 		$addressBooks = [];
 
@@ -106,7 +106,7 @@ class CardDavBackend implements BackendInterface, SyncSupport {
 			$addressBooks[$row['id']] = [
 				'id'  => $row['id'],
 				'uri' => $row['uri'],
-				'principaluri' => $row['principaluri'],
+				'principaluri' => $this->convertPrincipal($row['principaluri'], false),
 				'{DAV:}displayname' => $row['displayname'],
 				'{' . Plugin::NS_CARDDAV . '}addressbook-description' => $row['description'],
 				'{http://calendarserver.org/ns/}getctag' => $row['synctoken'],
@@ -919,4 +919,15 @@ class CardDavBackend implements BackendInterface, SyncSupport {
 	public function applyShareAcl($addressBookId, $acl) {
 		return $this->sharingBackend->applyShareAcl($addressBookId, $acl);
 	}
+
+	private function convertPrincipal($principalUri, $toV2) {
+		if ($this->principalBackend->getPrincipalPrefix() === 'principals') {
+			list(, $name) = URLUtil::splitPath($principalUri);
+			if ($toV2 === true) {
+				return "principals/users/$name";
+			}
+			return "principals/$name";
+		}
+		return $principalUri;
+	}
 }

apps/dav/lib/connector/sabre/auth.php

@@ -49,12 +49,14 @@ class Auth extends AbstractBasic {
 	/**
 	 * @param ISession $session
 	 * @param IUserSession $userSession
+	 * @param string $principalPrefix
 	 */
 	public function __construct(ISession $session,
-								IUserSession $userSession) {
+								IUserSession $userSession,
+								$principalPrefix = 'principals/users/') {
 		$this->session = $session;
 		$this->userSession = $userSession;
-		$this->principalPrefix = 'principals/users/';
+		$this->principalPrefix = $principalPrefix;
 	}
 
 	/**

apps/dav/lib/connector/sabre/principal.php

@@ -46,12 +46,20 @@ class Principal implements BackendInterface {
 	/** @var IGroupManager */
 	private $groupManager;
 
+	/** @var string */
+	private $principalPrefix;
+
 	/**
 	 * @param IUserManager $userManager
+	 * @param IGroupManager $groupManager
+	 * @param string $principalPrefix
 	 */
-	public function __construct(IUserManager $userManager, IGroupManager $groupManager) {
+	public function __construct(IUserManager $userManager,
+								IGroupManager $groupManager,
+								$principalPrefix = 'principals/users/') {
 		$this->userManager = $userManager;
 		$this->groupManager = $groupManager;
+		$this->principalPrefix = trim($principalPrefix, '/');
 	}
 
 	/**
@@ -70,7 +78,7 @@ class Principal implements BackendInterface {
 	public function getPrincipalsByPrefix($prefixPath) {
 		$principals = [];
 
-		if ($prefixPath === 'principals/users') {
+		if ($prefixPath === $this->principalPrefix) {
 			foreach($this->userManager->search('') as $user) {
 				$principals[] = $this->userToPrincipal($user);
 			}
@@ -88,20 +96,15 @@ class Principal implements BackendInterface {
 	 * @return array
 	 */
 	public function getPrincipalByPath($path) {
-		$elements = explode('/', $path);
-		if ($elements[0] !== 'principals') {
-			return null;
-		}
-		if ($elements[1] !== 'users') {
-			return null;
-		}
-		$name = $elements[2];
-		$user = $this->userManager->get($name);
+		list($prefix, $name) = URLUtil::splitPath($path);
 
-		if (!is_null($user)) {
-			return $this->userToPrincipal($user);
-		}
+		if ($prefix === $this->principalPrefix) {
+			$user = $this->userManager->get($name);
 
+			if (!is_null($user)) {
+				return $this->userToPrincipal($user);
+			}
+		}
 		return null;
 	}
 
@@ -132,7 +135,7 @@ class Principal implements BackendInterface {
 	public function getGroupMembership($principal) {
 		list($prefix, $name) = URLUtil::splitPath($principal);
 
-		if ($prefix === 'principals/users') {
+		if ($prefix === $this->principalPrefix) {
 			$user = $this->userManager->get($name);
 			if (!$user) {
 				throw new Exception('Principal not found');
@@ -141,11 +144,11 @@ class Principal implements BackendInterface {
 			$groups = $this->groupManager->getUserGroups($user);
 			$groups = array_map(function($group) {
 				/** @var IGroup $group */
-				return 'principals/groups/' . $group->getGID();
+				return $this->principalPrefix . '/' . $group->getGID();
 			}, $groups);
 
-			$groups[]= 'principals/users/'.$name.'/calendar-proxy-read';
-			$groups[]= 'principals/users/'.$name.'/calendar-proxy-write';
+//			$groups[]= $this->principalPrefix . '/' . $name . '/calendar-proxy-read';
+//			$groups[]= $this->principalPrefix . '/' . $name . '/calendar-proxy-write';
 			return $groups;
 		}
 		return [];
@@ -200,7 +203,7 @@ class Principal implements BackendInterface {
 		$userId = $user->getUID();
 		$displayName = $user->getDisplayName();
 		$principal = [
-				'uri' => "principals/users/$userId",
+				'uri' => $this->principalPrefix . '/' . $userId,
 				'{DAV:}displayname' => is_null($displayName) ? $userId : $displayName,
 		];
 
@@ -212,4 +215,8 @@ class Principal implements BackendInterface {
 		return $principal;
 	}
 
+	public function getPrincipalPrefix() {
+		return $this->principalPrefix;
+	}
+
 }