Receive shares in Talk/ folder

Signed-off-by: Joas Schilling <coding@schilljs.com>

lib/AppInfo/Application.php

@@ -49,6 +49,7 @@ use OCA\Talk\PublicShareAuth\Listener as PublicShareAuthListener;
 use OCA\Talk\PublicShareAuth\TemplateLoader as PublicShareAuthTemplateLoader;
 use OCA\Talk\Room;
 use OCA\Talk\Settings\Personal;
+use OCA\Talk\Share\Listener as ShareListener;
 use OCA\Talk\Share\RoomShareProvider;
 use OCA\Talk\Signaling\Listener as SignalingListener;
 use OCP\AppFramework\App;
@@ -103,6 +104,7 @@ class Application extends App {
 		CollaboratorsListener::register($dispatcher);
 		ResourceListener::register($dispatcher);
 		ChangelogListener::register($dispatcher);
+		ShareListener::register($dispatcher);
 		Operation::register($dispatcher);
 
 		$dispatcher->addServiceListener(AddContentSecurityPolicyEvent::class, Listener\CSPListener::class);

lib/Share/Listener.php

@@ -0,0 +1,68 @@
+<?php
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2020 Joas Schilling <coding@schilljs.com>
+ *
+ * @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\Talk\Share;
+
+use OC\Files\Filesystem;
+use OCP\EventDispatcher\IEventDispatcher;
+use OCP\Share\Events\VerifyMountPointEvent;
+use OCP\Share\IShare;
+use Symfony\Component\EventDispatcher\GenericEvent;
+
+class Listener {
+
+	public static function register(IEventDispatcher $dispatcher): void {
+		$dispatcher->addListener('OCP\Share::preShare', [self::class, 'overwriteShareTarget'], 1000);
+		$dispatcher->addListener(VerifyMountPointEvent::class, [self::class, 'overwriteMountPoint'], 1000);
+	}
+
+	public static function overwriteShareTarget(GenericEvent $event): void {
+		/** @var IShare $share */
+		$share = $event->getSubject();
+
+		if ($share->getShareType() !== IShare::TYPE_ROOM
+			&& $share->getShareType() !== RoomShareProvider::SHARE_TYPE_USERROOM) {
+			return;
+		}
+
+		$target = RoomShareProvider::TALK_FOLDER_PLACEHOLDER . '/' . $share->getNode()->getName();
+		$target = Filesystem::normalizePath($target);
+		$share->setTarget($target);
+	}
+
+	public static function overwriteMountPoint(VerifyMountPointEvent $event): void {
+		$share = $event->getShare();
+
+		if ($share->getShareType() !== IShare::TYPE_ROOM
+			&& $share->getShareType() !== RoomShareProvider::SHARE_TYPE_USERROOM) {
+			return;
+		}
+
+		if ($event->getParent() === RoomShareProvider::TALK_FOLDER_PLACEHOLDER) {
+			$parent = RoomShareProvider::TALK_FOLDER; // FIXME user preference
+			$event->setParent($parent);
+			if (!$event->getView()->is_dir($parent)) {
+				$event->getView()->mkdir($parent);
+			}
+		}
+	}
+}

lib/Share/RoomShareProvider.php

@@ -66,6 +66,9 @@ class RoomShareProvider implements IShareProvider {
 	// Special share type for user modified room shares
 	public const SHARE_TYPE_USERROOM = 11;
 
+	public const TALK_FOLDER = '/Talk';
+	public const TALK_FOLDER_PLACEHOLDER = '/{TALK_PLACEHOLDER}';
+
 	/** @var IDBConnection */
 	private $dbConnection;
 	/** @var ISecureRandom */