feat: TaskProcessing OCS API

Signed-off-by: Marcel Klehr <[email protected]>

core/Controller/TaskProcessingApiController.php

@@ -0,0 +1,214 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2024 Marcel Klehr <[email protected]>
+ *
+ * @author Marcel Klehr <[email protected]>
+ *
+ * @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 OC\Core\Controller;
+
+use OCA\Core\ResponseDefinitions;
+use OCP\AppFramework\Http;
+use OCP\AppFramework\Http\Attribute\AnonRateLimit;
+use OCP\AppFramework\Http\Attribute\ApiRoute;
+use OCP\AppFramework\Http\Attribute\NoAdminRequired;
+use OCP\AppFramework\Http\Attribute\PublicPage;
+use OCP\AppFramework\Http\Attribute\UserRateLimit;
+use OCP\AppFramework\Http\DataResponse;
+use OCP\Common\Exception\NotFoundException;
+use OCP\IL10N;
+use OCP\IRequest;
+use OCP\PreConditionNotMetException;
+use OCP\TaskProcessing\Exception\ValidationException;
+use OCP\TaskProcessing\ShapeDescriptor;
+use OCP\TaskProcessing\Task;
+use Psr\Container\ContainerInterface;
+use Psr\Log\LoggerInterface;
+
+/**
+ * @psalm-import-type CoreTaskProcessingTask from ResponseDefinitions
+ * @psalm-import-type CoreTaskProcessingTaskType from ResponseDefinitions
+ */
+class TaskProcessingApiController extends \OCP\AppFramework\OCSController {
+	public function __construct(
+		string                     $appName,
+		IRequest                   $request,
+		private \OCP\TaskProcessing\IManager           $taskProcessingManager,
+		private IL10N              $l,
+		private ?string            $userId,
+		private ContainerInterface $container,
+		private LoggerInterface    $logger,
+	) {
+		parent::__construct($appName, $request);
+	}
+
+	/**
+	 * This endpoint returns all available TaskProcessing task types
+	 *
+	 * @return DataResponse<Http::STATUS_OK, array{types: array<string, CoreTaskProcessingTaskType>}>
+	 * []}, array{}>
+	 *
+	 * 200: Task types returned
+	 */
+	#[PublicPage]
+	#[ApiRoute(verb: 'GET', url: '/tasktypes', root: '/taskprocessing')]
+	public function taskTypes(): DataResponse {
+		$taskTypes = $this->taskProcessingManager->getAvailableTaskTypes();
+
+		/** @var string $typeClass */
+		foreach ($taskTypes as $taskType) {
+			$taskType['inputShape'] = array_map(fn (ShapeDescriptor $descriptor) => $descriptor->jsonSerialize(), $taskType['inputShape']);
+			$taskType['optionalInputShape'] = array_map(fn (ShapeDescriptor $descriptor) => $descriptor->jsonSerialize(), $taskType['optionalInputShape']);
+			$taskType['outputShape'] = array_map(fn (ShapeDescriptor $descriptor) => $descriptor->jsonSerialize(), $taskType['outputShape']);
+			$taskType['optionalOutputShape'] = array_map(fn (ShapeDescriptor $descriptor) => $descriptor->jsonSerialize(), $taskType['optionalOutputShape']);
+		}
+
+		return new DataResponse([
+			'types' => $taskTypes,
+		]);
+	}
+
+	/**
+	 * This endpoint allows scheduling a task
+	 *
+	 * @param string $input Input text
+	 * @param string $type Type of the task
+	 * @param string $appId ID of the app that will execute the task
+	 * @param string $identifier An arbitrary identifier for the task
+	 *
+	 * @return DataResponse<Http::STATUS_OK, array{task: CoreTaskProcessingTask}, array{}>|DataResponse<Http::STATUS_INTERNAL_SERVER_ERROR|Http::STATUS_BAD_REQUEST|Http::STATUS_PRECONDITION_FAILED, array{message: string}, array{}>
+	 *
+	 * 200: Task scheduled successfully
+	 * 400: Scheduling task is not possible
+	 * 412: Scheduling task is not possible
+	 */
+	#[PublicPage]
+	#[UserRateLimit(limit: 20, period: 120)]
+	#[AnonRateLimit(limit: 5, period: 120)]
+	#[ApiRoute(verb: 'POST', url: '/schedule', root: '/taskprocessing')]
+	public function schedule(array $input, string $type, string $appId, string $identifier = ''): DataResponse {
+		$task = new Task($type, $input, $appId, $this->userId, $identifier);
+		try {
+			$this->taskProcessingManager->scheduleTask($task);
+
+			$json = $task->jsonSerialize();
+
+			return new DataResponse([
+				'task' => $json,
+			]);
+		} catch (PreConditionNotMetException) {
+			return new DataResponse(['message' => $this->l->t('The given provider is not available')], Http::STATUS_PRECONDITION_FAILED);
+		} catch (ValidationException $e) {
+			return new DataResponse(['message' => $e->getMessage()], Http::STATUS_BAD_REQUEST);
+		} catch (\OCP\TaskProcessing\Exception\Exception $e) {
+			return new DataResponse(['message' => 'Internal server error'], Http::STATUS_INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	/**
+	 * This endpoint allows checking the status and results of a task.
+	 * Tasks are removed 1 week after receiving their last update.
+	 *
+	 * @param int $id The id of the task
+	 *
+	 * @return DataResponse<Http::STATUS_OK, array{task: CoreTaskProcessingTask}, array{}>|DataResponse<Http::STATUS_NOT_FOUND|Http::STATUS_INTERNAL_SERVER_ERROR, array{message: string}, array{}>
+	 *
+	 * 200: Task returned
+	 * 404: Task not found
+	 */
+	#[PublicPage]
+	#[ApiRoute(verb: 'GET', url: '/task/{id}', root: '/taskprocessing')]
+	public function getTask(int $id): DataResponse {
+		try {
+			$task = $this->taskProcessingManager->getUserTask($id, $this->userId);
+
+			$json = $task->jsonSerialize();
+
+			return new DataResponse([
+				'task' => $json,
+			]);
+		} catch (NotFoundException $e) {
+			return new DataResponse(['message' => $this->l->t('Task not found')], Http::STATUS_NOT_FOUND);
+		} catch (\RuntimeException $e) {
+			return new DataResponse(['message' => $this->l->t('Internal error')], Http::STATUS_INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	/**
+	 * This endpoint allows to delete a scheduled task for a user
+	 *
+	 * @param int $id The id of the task
+	 *
+	 * @return DataResponse<Http::STATUS_OK, array{task: CoreTaskProcessingTask}, array{}>|DataResponse<Http::STATUS_NOT_FOUND|Http::STATUS_INTERNAL_SERVER_ERROR, array{message: string}, array{}>
+	 *
+	 * 200: Task returned
+	 * 404: Task not found
+	 */
+	#[NoAdminRequired]
+	#[ApiRoute(verb: 'DELETE', url: '/task/{id}', root: '/taskprocessing')]
+	public function deleteTask(int $id): DataResponse {
+		try {
+			$task = $this->taskProcessingManager->getUserTask($id, $this->userId);
+
+			$this->taskProcessingManager->deleteTask($task);
+
+			$json = $task->jsonSerialize();
+
+			return new DataResponse([
+				'task' => $json,
+			]);
+		} catch (\OCP\TaskProcessing\Exception\NotFoundException $e) {
+			return new DataResponse(['message' => $this->l->t('Task not found')], Http::STATUS_NOT_FOUND);
+		} catch (\OCP\TaskProcessing\Exception\Exception $e) {
+			return new DataResponse(['message' => $this->l->t('Internal error')], Http::STATUS_INTERNAL_SERVER_ERROR);
+		}
+	}
+
+
+	/**
+	 * This endpoint returns a list of tasks of a user that are related
+	 * with a specific appId and optionally with an identifier
+	 *
+	 * @param string $appId ID of the app
+	 * @param string|null $identifier An arbitrary identifier for the task
+	 * @return DataResponse<Http::STATUS_OK, array{tasks: CoreTaskProcessingTask[]}, array{}>|DataResponse<Http::STATUS_INTERNAL_SERVER_ERROR, array{message: string}, array{}>
+	 *
+	 *  200: Task list returned
+	 */
+	#[NoAdminRequired]
+	#[ApiRoute(verb: 'GET', url: '/tasks/app/{appId}', root: '/taskprocessing')]
+	public function listTasksByApp(string $appId, ?string $identifier = null): DataResponse {
+		try {
+			$tasks = $this->taskProcessingManager->getUserTasksByApp($this->userId, $appId, $identifier);
+			/** @var CoreTaskProcessingTask[] $json */
+			$json = array_map(static function (Task $task) {
+				return $task->jsonSerialize();
+			}, $tasks);
+
+			return new DataResponse([
+				'tasks' => $json,
+			]);
+		} catch (\RuntimeException $e) {
+			return new DataResponse(['message' => $this->l->t('Internal error')], Http::STATUS_INTERNAL_SERVER_ERROR);
+		}
+	}
+}

core/ResponseDefinitions.php

@@ -176,6 +176,34 @@
  *       iconURL: ?string,
  *       iconEmoji: ?string,
  *   }
+ *
+ * @psalm-type CoreTaskProcessingShape = array{
+ *     name: string,
+ *     description: string,
+ *     type: int
+ * }
+ *
+ * @psalm-type CoreTaskProcessingTaskType = array{
+ *     name: string,
+ *     description: string,
+ *     inputShape: CoreTaskProcessingShape[],
+ *     optionalInputShape: CoreTaskProcessingShape[],
+ *     outputShape: CoreTaskProcessingShape[],
+ *     optionalOutputShape: CoreTaskProcessingShape[],
+ * }
+ *
+ * @psalm-type CoreTaskProcessingTask = array{
+ *     id: ?int,
+ *     status: int,
+ *     userId: ?string,
+ *     appId: string,
+ *     input: array,
+ *     output: ?array,
+ *     identifier: ?string,
+ *     completionExpectedAt: ?int,
+ *     progress: ?float
+ * }
+ *
  */
 class ResponseDefinitions {
 }