Initial mobile edit

* Add OCS endpoint for client to request a view
* Endpoint returns an URL
* DirectView controller to show info

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

4 files changed, 338 insertions, 0 deletions

diff --git a/lib/Controller/DirectViewController.php b/lib/Controller/DirectViewController.php
new file mode 100644
index 00000000..d30828e4
--- /dev/null
+++ b/lib/Controller/DirectViewController.php
@@ -0,0 +1,114 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * 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
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace OCA\Richdocuments\Controller;
+
+use OCA\Richdocuments\AppConfig;
+use OCA\Richdocuments\Db\DirectMapper;
+use OCA\Richdocuments\TokenManager;
+use OCP\AppFramework\Controller;
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\AppFramework\Http\ContentSecurityPolicy;
+use OCP\AppFramework\Http\TemplateResponse;
+use OCP\Files\IRootFolder;
+use OCP\Files\Node;
+use OCP\IConfig;
+use OCP\IRequest;
+
+class DirectViewController extends Controller {
+	/** @var IRootFolder */
+	private $rootFolder;
+
+	/** @var TokenManager */
+	private $tokenManager;
+
+	/** @var DirectMapper */
+	private $directMapper;
+
+	/** @var IConfig */
+	private $config;
+
+	/** @var AppConfig */
+	private $appConfig;
+
+	public function __construct($appName,
+								IRequest $request,
+								IRootFolder $rootFolder,
+								TokenManager $tokenManager,
+								DirectMapper $directMapper,
+								IConfig $config,
+								AppConfig $appConfig) {
+		parent::__construct($appName, $request);
+
+		$this->rootFolder = $rootFolder;
+		$this->tokenManager = $tokenManager;
+		$this->directMapper = $directMapper;
+		$this->config = $config;
+		$this->appConfig = $appConfig;
+	}
+
+	/**
+	 * @NoAdminRequired
+	 * @NoCSRFRequired
+	 * @PublicPage
+	 *
+	 * @param string $token
+	 */
+	public function show($token) {
+		try {
+			$direct = $this->directMapper->getBytoken($token);
+		} catch (DoesNotExistException $e) {
+			//TODO show 404
+			throw new \Exception('NOPE!');
+		}
+
+		try {
+			$folder = $this->rootFolder->getUserFolder($direct->getUid());
+			$item = $folder->getById($direct->getFileid())[0];
+			if(!($item instanceof Node)) {
+				throw new \Exception();
+			}
+			list($urlSrc, $token) = $this->tokenManager->getToken($item->getId());
+			$params = [
+				'permissions' => $item->getPermissions(),
+				'title' => $item->getName(),
+				'fileId' => $item->getId() . '_' . $this->config->getSystemValue('instanceid'),
+				'token' => $token,
+				'urlsrc' => $urlSrc,
+				'path' => $folder->getRelativePath($item->getPath()),
+				'instanceId' => $this->config->getSystemValue('instanceid'),
+				'canonical_webroot' => $this->appConfig->getAppValue('canonical_webroot'),
+				'direct' => true,
+			];
+
+			$response = new TemplateResponse('richdocuments', 'documents', $params, 'empty');
+			$policy = new ContentSecurityPolicy();
+			$policy->allowInlineScript(true);
+			$policy->addAllowedFrameDomain($this->appConfig->getAppValue('wopi_url'));
+			$response->setContentSecurityPolicy($policy);
+			return $response;
+		} catch (\Exception $e) {
+			throw $e;
+		}
+
+	}
+}
diff --git a/lib/Controller/OCSController.php b/lib/Controller/OCSController.php
new file mode 100644
index 00000000..14651409
--- /dev/null
+++ b/lib/Controller/OCSController.php
@@ -0,0 +1,94 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * 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
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace OCA\Richdocuments\Controller;
+
+use OCA\Richdocuments\Db\DirectMapper;
+use OCP\AppFramework\Http\DataResponse;
+use OCP\AppFramework\OCS\OCSBadRequestException;
+use OCP\AppFramework\OCS\OCSNotFoundException;
+use OCP\Files\Folder;
+use OCP\Files\IRootFolder;
+use OCP\Files\NotFoundException;
+use OCP\IRequest;
+use OCP\IURLGenerator;
+
+class OCSController extends \OCP\AppFramework\OCSController {
+	/** @var IRootFolder */
+	private $rootFolder;
+
+	/** @var string */
+	private $userId;
+
+	/** @var DirectMapper */
+	private $directMapper;
+
+	/** @var IURLGenerator */
+	private $urlGenerator;
+
+	public function __construct($appName,
+								IRequest $request,
+								IRootFolder $rootFolder,
+								$userId,
+								DirectMapper $directMapper,
+								IURLGenerator $urlGenerator) {
+		parent::__construct($appName, $request);
+
+		$this->rootFolder = $rootFolder;
+		$this->userId = $userId;
+		$this->directMapper = $directMapper;
+		$this->urlGenerator = $urlGenerator;
+	}
+
+	/**
+	 * @NoAdminRequired
+	 *
+	 * @param int $fileId
+	 */
+	public function create($fileId) {
+		try {
+			$userFolder = $this->rootFolder->getUserFolder($this->userId);
+			$nodes = $userFolder->getById($fileId);
+
+			if ($nodes === []) {
+				throw new NotFoundException();
+			}
+
+			$node = $nodes[0];
+			if ($node instanceof Folder) {
+				throw new OCSBadRequestException('Cannot view folder');
+			}
+
+			//TODO check if we can even edit this file with collabora
+			
+			$direct = $this->directMapper->newDirect($this->userId, $fileId);
+
+			return new DataResponse([
+				'url' => $this->urlGenerator->linkToRouteAbsolute('richdocuments.directView.show', [
+					'token' => $direct->getToken()
+				])
+			]);
+		} catch (NotFoundException $e) {
+			throw new OCSNotFoundException();
+		}
+	}
+}
diff --git a/lib/Db/Direct.php b/lib/Db/Direct.php
new file mode 100644
index 00000000..b9987d7a
--- /dev/null
+++ b/lib/Db/Direct.php
@@ -0,0 +1,51 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * 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
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\Richdocuments\Db;
+
+use OCP\AppFramework\Db\Entity;
+
+/**
+ * @method void setToken(string $token)
+ * @method string getToken()
+ * @method void setUid(string $uid)
+ * @method string getUid()
+ * @method void setFileid(int $fileid)
+ * @method int getFileid()
+ */
+class Direct extends Entity {
+	/** @var string */
+	protected $token;
+
+	/** @var string */
+	protected $uid;
+
+	/** @var int */
+	protected $fileid;
+
+	public function __construct() {
+		$this->addType('token', 'string');
+		$this->addType('uid', 'string');
+		$this->addType('fileid', 'int');
+	}
+}
diff --git a/lib/Db/DirectMapper.php b/lib/Db/DirectMapper.php
new file mode 100644
index 00000000..100f1332
--- /dev/null
+++ b/lib/Db/DirectMapper.php
@@ -0,0 +1,79 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * 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
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\Richdocuments\Db;
+
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\AppFramework\Db\Mapper;
+use OCP\IDBConnection;
+use OCP\Security\ISecureRandom;
+use PhpParser\Node\Scalar\MagicConst\Dir;
+
+class DirectMapper extends Mapper {
+
+	/** @var ISecureRandom */
+	protected $random;
+
+	public function __construct(IDBConnection $db, ISecureRandom $random) {
+		parent::__construct($db, 'richdocuments_direct', Direct::class);
+
+		$this->random = $random;
+	}
+
+	/**
+	 * @param string $uid
+	 * @param int $fileid
+	 * @return Direct
+	 */
+	public function newDirect($uid, $fileid) {
+		$direct = new Direct();
+		$direct->setUid($uid);
+		$direct->setFileid($fileid);
+		$direct->setToken($this->random->generate(64, ISecureRandom::CHAR_DIGITS . ISecureRandom::CHAR_LOWER . ISecureRandom::CHAR_UPPER));
+
+		$direct = $this->insert($direct);
+		return $direct;
+	}
+
+	/**
+	 * @param string $token
+	 * @return Direct
+	 */
+	public function getBytoken($token) {
+		$qb = $this->db->getQueryBuilder();
+		$qb->select('*')
+			->from('richdocuments_direct')
+			->where($qb->expr()->eq('token', $qb->createNamedParameter($token)));
+
+		$cursor = $qb->execute();
+		$row = $cursor->fetch();
+		$cursor->closeCursor();
+
+		//There can only be one as the token is unique
+		if ($row === false) {
+			throw new DoesNotExistException('Could not find token.');
+		}
+
+		return Direct::fromRow($row);
+	}
+}