Collections (#1294)

Collections

lib/AppInfo/Application.php

@@ -187,8 +187,9 @@ class Application extends App {
 		/** @var IManager $resourceManager */
 		$resourceManager = $this->getContainer()->query(IManager::class);
 		$resourceManager->registerResourceProvider(\OCA\Deck\Collaboration\Resources\ResourceProvider::class);
+		$resourceManager->registerResourceProvider(\OCA\Deck\Collaboration\Resources\ResourceProviderCard::class);
 		\OC::$server->getEventDispatcher()->addListener('\OCP\Collaboration\Resources::loadAdditionalScripts', function () {
-			\OCP\Util::addScript('deck', 'build/collections');
+			\OCP\Util::addScript('deck', 'collections');
 		});
 	}
 

lib/Collaboration/Resources/ResourceProviderCard.php

@@ -0,0 +1,160 @@
+<?php
+/**
+ * @copyright Copyright (c) 2019 Julius Härtl <jus@bitgrid.net>
+ *
+ * @author Julius Härtl <jus@bitgrid.net>
+ *
+ * @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\Deck\Collaboration\Resources;
+
+
+use OCA\Deck\Db\Acl;
+use OCA\Deck\Db\Board;
+use OCA\Deck\Db\BoardMapper;
+use OCA\Deck\Db\CardMapper;
+use OCA\Deck\Service\PermissionService;
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\AppFramework\Db\MultipleObjectsReturnedException;
+use OCP\AppFramework\QueryException;
+use OCP\Collaboration\Resources\IManager;
+use OCP\Collaboration\Resources\IProvider;
+use OCP\Collaboration\Resources\IResource;
+use OCP\Collaboration\Resources\ResourceException;
+use OCP\IURLGenerator;
+use OCP\IUser;
+
+class ResourceProviderCard implements IProvider {
+
+	const RESOURCE_TYPE = 'deck-card';
+
+	/** @var CardMapper */
+	private $cardMapper;
+
+	/** @var BoardMapper */
+	private $boardMapper;
+
+	/** @var PermissionService */
+	private $permissionService;
+
+	/** @var IURLGenerator */
+	private $urlGenerator;
+
+	/** @var array */
+	protected $nodes = [];
+
+	public function __construct(CardMapper $cardMapper, BoardMapper $boardMapper, PermissionService $permissionService, IURLGenerator $urlGenerator) {
+		$this->cardMapper = $cardMapper;
+		$this->boardMapper = $boardMapper;
+		$this->permissionService = $permissionService;
+		$this->urlGenerator = $urlGenerator;
+	}
+
+	/**
+	 * Get the type of a resource
+	 *
+	 * @return string
+	 * @since 15.0.0
+	 */
+	public function getType(): string {
+		return self::RESOURCE_TYPE;
+	}
+
+	/**
+	 * Get the rich object data of a resource
+	 *
+	 * @param IResource $resource
+	 * @return array
+	 * @since 16.0.0
+	 */
+	public function getResourceRichObject(IResource $resource): array {
+		try {
+			$card = $this->cardMapper->find($resource->getId());
+			$board = $this->getBoard($resource->getId());
+		} catch (DoesNotExistException $e) {
+			throw new ResourceException('No card found for resource');
+		} catch (MultipleObjectsReturnedException $e) {
+			throw new ResourceException('No unique card found for resource, this should never happen');
+		}
+
+		$link = $this->urlGenerator->linkToRoute('deck.page.index') . '#/board/' . $board->getId() . '/cards/' . $resource->getId();
+
+		return [
+			'type' => self::RESOURCE_TYPE,
+			'id' => $resource->getId(),
+			'name' => $board->getTitle() . ': ' . $card->getTitle(),
+			'link' => $link,
+			'iconUrl' => $this->urlGenerator->imagePath('core', 'actions/toggle-pictures.svg')
+		];
+
+	}
+
+	/**
+	 * Can a user/guest access the collection
+	 *
+	 * @param IResource $resource
+	 * @param IUser|null $user
+	 * @return bool
+	 * @since 16.0.0
+	 */
+	public function canAccessResource(IResource $resource, ?IUser $user): bool {
+		if (!$user instanceof IUser || $resource->getType() !== self::RESOURCE_TYPE) {
+			return false;
+		}
+		try {
+			$board = $this->getBoard($resource->getId());
+		} catch (DoesNotExistException $e) {
+			return false;
+		} catch (MultipleObjectsReturnedException $e) {
+			return false;
+		}
+
+		if ($board === null) {
+			return false;
+		}
+		if ($board->getOwner() === $user->getUID()) {
+			return true;
+		}
+		return $this->permissionService->userCan($board->getAcl(), Acl::PERMISSION_READ, $user->getUID());
+	}
+
+	/**
+	 * @param $cardId
+	 * @return Board
+	 * @throws DoesNotExistException
+	 * @throws MultipleObjectsReturnedException
+	 */
+	private function getBoard($cardId) {
+		$boardId = $this->cardMapper->findBoardId($cardId);
+		return $this->boardMapper->find($boardId, false, true);
+	}
+
+	public function invalidateAccessCache($cardId = null) {
+		try {
+			/** @var IManager $resourceManager */
+			$resourceManager = \OC::$server->query(IManager::class);
+		} catch (QueryException $e) {
+		}
+		if ($cardId !== null) {
+			$resource = $resourceManager->getResourceForUser(self::RESOURCE_TYPE, (string)$cardId, null);
+			$resourceManager->invalidateAccessCacheForResource($resource);
+		} else {
+			$resourceManager->invalidateAccessCacheForProvider($this);
+		}
+	}
+}