Introduce AMD style MOVE operation

apps/dav/appinfo/Migrations/Version20180622095921.php

@@ -0,0 +1,34 @@
+<?php
+namespace OCA\dav\Migrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\DBAL\Types\Type;
+use OCP\Migration\ISchemaMigration;
+
+class Version20180622095921 implements ISchemaMigration {
+	public function changeSchema(Schema $schema, array $options) {
+		$prefix = $options['tablePrefix'];
+		if ($schema->hasTable("${prefix}dav_job_status")) {
+			return;
+		}
+		$table = $schema->createTable("${prefix}dav_job_status");
+		$table->addColumn('id', Type::BIGINT, [
+			'autoincrement' => true,
+			'notnull' => true,
+			'length' => 20,
+		]);
+		$table->addColumn('uuid', Type::GUID, [
+			'notnull' => true,
+		]);
+		$table->addColumn('user_id', Type::STRING, [
+			'notnull' => true,
+			'length' => 64,
+		]);
+		$table->addColumn('status_info', Type::STRING, [
+			'notnull' => true,
+			'length' => 4000,
+		]);
+		$table->setPrimaryKey(['id']);
+		$table->addUniqueIndex(['uuid']);
+	}
+}

apps/dav/lib/Connector/Sabre/Server.php

@@ -25,6 +25,8 @@
 namespace OCA\DAV\Connector\Sabre;
 
 use OCA\DAV\DAV\CopyPlugin;
+use OCA\DAV\DAV\LazyOpsPlugin;
+use OCA\DAV\JobStatus\Entity\JobStatusMapper;
 
 /**
  * Class \OCA\DAV\Connector\Sabre\Server
@@ -37,12 +39,21 @@ class Server extends \Sabre\DAV\Server {
 
 	/**
 	 * @see \Sabre\DAV\Server
+	 * @param null $treeOrNode
+	 * @throws \OCP\AppFramework\QueryException
 	 * @throws \Sabre\DAV\Exception
 	 */
 	public function __construct($treeOrNode = null) {
 		parent::__construct($treeOrNode);
 		self::$exposeVersion = false;
 		$this->enablePropfindDepthInfinity = true;
 		$this->addPlugin(new CopyPlugin());
+		$this->addPlugin(new LazyOpsPlugin(
+			\OC::$server->getUserSession(),
+			\OC::$server->getURLGenerator(),
+			\OC::$server->getShutdownHandler(),
+			\OC::$server->query(JobStatusMapper::class),
+			\OC::$server->getLogger()
+		));
 	}
 }

apps/dav/lib/DAV/LazyOpsPlugin.php

@@ -0,0 +1,170 @@
+<?php
+/**
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ *
+ * @copyright Copyright (c) 2018, 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\DAV;
+
+use OCA\DAV\JobStatus\Entity\JobStatus;
+use OCA\DAV\JobStatus\Entity\JobStatusMapper;
+use OCP\ILogger;
+use OCP\IURLGenerator;
+use OCP\IUserSession;
+use OCP\Shutdown\IShutdownManager;
+use Sabre\DAV\Exception;
+use Sabre\DAV\Server;
+use Sabre\DAV\ServerPlugin;
+use Sabre\DAV\UUIDUtil;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\Response;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * Class LazyOpsPlugin
+ *
+ * @package OCA\DAV\DAV
+ */
+class LazyOpsPlugin extends ServerPlugin {
+
+	/** @var Server */
+	private $server;
+	/** @var string */
+	private $jobId;
+	/** @var JobStatus */
+	private $entity;
+	/** @var IUserSession */
+	private $userSession;
+	/** @var IURLGenerator */
+	private $urlGenerator;
+	/** @var IShutdownManager */
+	private $shutdownManager;
+	/** @var ILogger */
+	private $logger;
+	/** @var JobStatusMapper */
+	private $mapper;
+
+	public function __construct(IUserSession $userSession,
+								IURLGenerator $urlGenerator,
+								IShutdownManager $shutdownManager,
+								JobStatusMapper $jobStatusMapper,
+								ILogger $logger) {
+		$this->userSession = $userSession;
+		$this->urlGenerator = $urlGenerator;
+		$this->shutdownManager = $shutdownManager;
+		$this->logger = $logger;
+		$this->mapper = $jobStatusMapper;
+	}
+
+	/**
+	 * @param Server $server
+	 */
+	public function initialize(Server $server) {
+		$this->server = $server;
+		$server->on('method:MOVE', [$this, 'httpMove'], 90);
+	}
+
+	/**
+	 * @param RequestInterface $request
+	 * @param ResponseInterface $response
+	 * @return bool
+	 * @throws Exception\NotAuthenticated
+	 */
+	public function httpMove(RequestInterface $request, ResponseInterface $response) {
+		if (!$request->getHeader('OC-LazyOps')) {
+			return true;
+		}
+
+		$this->jobId = UUIDUtil::getUUID();
+		$this->setJobStatus([
+			'status' => 'init'
+		]);
+		$userId = $this->getUSerId();
+		$location = $this->urlGenerator
+				->linkTo('', 'remote.php') . "/dav/{$userId}/job-status/{$this->jobId}";
+
+		$response->setStatus(202);
+		$response->addHeader('Connection', 'close');
+		$response->addHeader('OC-JobStatus-Location', $location);
+
+		$this->shutdownManager->register(function () use ($request, $response) {
+			return $this->afterResponse($request, $response);
+		}, IShutdownManager::HIGH);
+
+		return false;
+	}
+
+	public function afterResponse(RequestInterface $request, ResponseInterface $response) {
+		if (!$request->getHeader('OC-LazyOps')) {
+			return true;
+		}
+
+		\flush();
+		$request->removeHeader('OC-LazyOps');
+		$responseDummy = new Response();
+		try {
+			$this->setJobStatus([
+				'status' => 'started'
+			]);
+			$this->server->emit('method:MOVE', [$request, $responseDummy]);
+
+			$this->setJobStatus([
+				'status' => 'finished',
+				'fileId' => $response->getHeader('OC-FileId'),
+				'ETag' => $response->getHeader('ETag')
+			]);
+		} catch (\Exception $ex) {
+			$this->logger->logException($ex);
+
+			$this->setJobStatus([
+				'status' => 'error',
+				'errorCode' => 500,
+				'errorMessage' => $ex->getMessage()
+			]);
+		}
+		return false;
+	}
+
+	private function setJobStatus(array $status) {
+
+		if ($this->entity === null) {
+			$userId = $this->getUSerId();
+
+			$this->entity = new JobStatus();
+			$this->entity->setStatusInfo(\json_encode($status));
+			$this->entity->setUserId($userId);
+			$this->entity->setUuid($this->jobId);
+			$this->mapper->insert($this->entity);
+		} else {
+			$this->entity->setStatusInfo(\json_encode($status));
+			$this->mapper->update($this->entity);
+		}
+	}
+
+	/**
+	 * @return string
+	 * @throws Exception\NotAuthenticated
+	 */
+	private function getUSerId() {
+		$user = $this->userSession->getUser();
+		if ($user === null) {
+			throw new Exception\NotAuthenticated();
+		}
+		return $user->getUID();
+	}
+}

apps/dav/lib/JobStatus/Entity/JobStatus.php

@@ -0,0 +1,42 @@
+<?php
+/**
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ *
+ * @copyright Copyright (c) 2018, 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\JobStatus\Entity;
+
+use OCP\AppFramework\Db\Entity;
+
+/**
+ * Class JobStatus
+ *
+ * @method string getUuid()
+ * @method void setUuid(string $uuid)
+ * @method string getUserId()
+ * @method void setUserId(string $userId)
+ * @method string getStatusInfo()
+ * @method void setStatusInfo(string $statusInfo)
+ *
+ * @package OCA\DAV\JobStatus\Entity
+ */
+class JobStatus extends Entity {
+	protected $uuid;
+	protected $userId;
+	protected $statusInfo;
+}

apps/dav/lib/JobStatus/Entity/JobStatusMapper.php

@@ -0,0 +1,47 @@
+<?php
+/**
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ *
+ * @copyright Copyright (c) 2018, 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\JobStatus\Entity;
+
+use OCP\AppFramework\Db\Mapper;
+use OCP\IDBConnection;
+
+class JobStatusMapper extends Mapper {
+	public function __construct(IDBConnection $db) {
+		parent::__construct($db, 'dav_job_status');
+	}
+
+	/**
+	 * @param string $userId
+	 * @param string $jobId
+	 * @return JobStatus
+	 * @throws \OCP\AppFramework\Db\DoesNotExistException
+	 * @throws \OCP\AppFramework\Db\MultipleObjectsReturnedException
+	 */
+	public function findByUserIdAndJobId($userId, $jobId) {
+		$query = $this->db->getQueryBuilder();
+		$query->select('*')
+			->from($this->getTableName())
+			->where($query->expr()->eq('uuid', $query->createNamedParameter($jobId)))
+			->andWhere($query->expr()->eq('user_id', $query->createNamedParameter($userId)));
+		return $this->mapRowToEntity($this->findOneQuery($query->getSQL(), $query->getParameters()));
+	}
+}