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feat(TaskProcessing): user-facing error messages 

Signed-off-by: Marcel Klehr <mklehr@gmx.net>
pull/55713/head
Marcel Klehr 2025-10-13 12:30:21 +07:00
parent ea8ab8e192
commit 7373f11af6
7 changed files with 113 additions and 16 deletions
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5
core/Controller/TaskProcessingApiController.php
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@ -460,6 +460,7 @@ class TaskProcessingApiController extends OCSController {
* @param int $taskId The id of the task
* @param array<string,mixed>|null $output The resulting task output, files are represented by their IDs
* @param string|null $errorMessage An error message if the task failed
* @param string|null $userFacingErrorMessage An error message that will be shown to the user
* @return DataResponse<Http::STATUS_OK, array{task: CoreTaskProcessingTask}, array{}>|DataResponse<Http::STATUS_INTERNAL_SERVER_ERROR|Http::STATUS_NOT_FOUND, array{message: string}, array{}>
*
* 200: Result updated successfully
@ -467,10 +468,10 @@ class TaskProcessingApiController extends OCSController {
*/
#[ExAppRequired]
#[ApiRoute(verb: 'POST', url: '/tasks_provider/{taskId}/result', root: '/taskprocessing')]
public function setResult(int $taskId, ?array $output = null, ?string $errorMessage = null): DataResponse {
public function setResult(int $taskId, ?array $output = null, ?string $errorMessage = null, ?string $userFacingErrorMessage = null): DataResponse {
try {
// set result
$this->taskProcessingManager->setTaskResult($taskId, $errorMessage, $output, true);
$this->taskProcessingManager->setTaskResult($taskId, $errorMessage, $output, isUsingFileIds: true, userFacingError: $userFacingErrorMessage);
$task = $this->taskProcessingManager->getTask($taskId);
/** @var CoreTaskProcessingTask $json */

48
core/Migrations/Version33000Date20251013110519.php
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@ -0,0 +1,48 @@
<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OC\Core\Migrations;
use Closure;
use OCP\DB\ISchemaWrapper;
use OCP\DB\Types;
use OCP\Migration\Attributes\AddColumn;
use OCP\Migration\Attributes\ColumnType;
use OCP\Migration\IOutput;
use OCP\Migration\SimpleMigrationStep;
/**
*
*/
#[AddColumn(table: 'taskprocessing_tasks', name: 'user_facing_error_message', type: ColumnType::STRING)]
class Version33000Date20251013110519 extends SimpleMigrationStep {
/**
* @param IOutput $output
* @param Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
* @param array $options
* @return null|ISchemaWrapper
*/
public function changeSchema(IOutput $output, Closure $schemaClosure, array $options): ?ISchemaWrapper {
/** @var ISchemaWrapper $schema */
$schema = $schemaClosure();
if ($schema->hasTable('taskprocessing_tasks')) {
$table = $schema->getTable('taskprocessing_tasks');
if (!$table->hasColumn('user_facing_error_message')) {
$table->addColumn('user_facing_error_message', Types::STRING, [
'notnull' => false,
'length' => 4000,
]);
return $schema;
}
}
return null;
}
}

10
lib/private/TaskProcessing/Db/Task.php
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@ -47,6 +47,8 @@ use OCP\TaskProcessing\Task as OCPTask;
* @method int getEndedAt()
* @method setAllowCleanup(int $allowCleanup)
* @method int getAllowCleanup()
* @method setUserFacingErrorMessage(null|string $message)
* @method null|string getUserFacingErrorMessage()
*/
class Task extends Entity {
protected $lastUpdated;
@ -66,16 +68,17 @@ class Task extends Entity {
protected $startedAt;
protected $endedAt;
protected $allowCleanup;
protected $userFacingErrorMessage;
/**
* @var string[]
*/
public static array $columns = ['id', 'last_updated', 'type', 'input', 'output', 'status', 'user_id', 'app_id', 'custom_id', 'completion_expected_at', 'error_message', 'progress', 'webhook_uri', 'webhook_method', 'scheduled_at', 'started_at', 'ended_at', 'allow_cleanup'];
public static array $columns = ['id', 'last_updated', 'type', 'input', 'output', 'status', 'user_id', 'app_id', 'custom_id', 'completion_expected_at', 'error_message', 'progress', 'webhook_uri', 'webhook_method', 'scheduled_at', 'started_at', 'ended_at', 'allow_cleanup', 'user_facing_error_message'];
/**
* @var string[]
*/
public static array $fields = ['id', 'lastUpdated', 'type', 'input', 'output', 'status', 'userId', 'appId', 'customId', 'completionExpectedAt', 'errorMessage', 'progress', 'webhookUri', 'webhookMethod', 'scheduledAt', 'startedAt', 'endedAt', 'allowCleanup'];
public static array $fields = ['id', 'lastUpdated', 'type', 'input', 'output', 'status', 'userId', 'appId', 'customId', 'completionExpectedAt', 'errorMessage', 'progress', 'webhookUri', 'webhookMethod', 'scheduledAt', 'startedAt', 'endedAt', 'allowCleanup', 'userFacingErrorMessage'];
public function __construct() {
@ -98,6 +101,7 @@ class Task extends Entity {
$this->addType('startedAt', 'integer');
$this->addType('endedAt', 'integer');
$this->addType('allowCleanup', 'integer');
$this->addType('userFacingErrorMessage', 'string');
}
public function toRow(): array {
@ -127,6 +131,7 @@ class Task extends Entity {
'startedAt' => $task->getStartedAt(),
'endedAt' => $task->getEndedAt(),
'allowCleanup' => $task->getAllowCleanup() ? 1 : 0,
'userFacingErrorMessage' => $task->getUserFacingErrorMessage(),
]);
return $taskEntity;
}
@ -150,6 +155,7 @@ class Task extends Entity {
$task->setStartedAt($this->getStartedAt());
$task->setEndedAt($this->getEndedAt());
$task->setAllowCleanup($this->getAllowCleanup() !== 0);
$task->setUserFacingErrorMessage($this->getUserFacingErrorMessage());
return $task;
}
}

6
lib/private/TaskProcessing/Manager.php
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@ -1018,7 +1018,7 @@ class Manager implements IManager {
$output = $provider->process($task->getUserId(), $input, fn (float $progress) => $this->setTaskProgress($task->getId(), $progress));
} catch (ProcessingException $e) {
$this->logger->warning('Failed to process a TaskProcessing task with synchronous provider ' . $provider->getId(), ['exception' => $e]);
$this->setTaskResult($task->getId(), $e->getMessage(), null);
$this->setTaskResult($task->getId(), $e->getMessage(), null, userFacingError: $e->getUserFacingMessage());
return false;
} catch (\Throwable $e) {
$this->logger->error('Unknown error while processing TaskProcessing task', ['exception' => $e]);
@ -1089,7 +1089,7 @@ class Manager implements IManager {
return true;
}
public function setTaskResult(int $id, ?string $error, ?array $result, bool $isUsingFileIds = false): void {
public function setTaskResult(int $id, ?string $error, ?array $result, bool $isUsingFileIds = false, ?string $userFacingError = null): void {
// TODO: Not sure if we should rather catch the exceptions of getTask here and fail silently
$task = $this->getTask($id);
if ($task->getStatus() === Task::STATUS_CANCELLED) {
@ -1101,6 +1101,8 @@ class Manager implements IManager {
$task->setEndedAt(time());
// truncate error message to 1000 characters
$task->setErrorMessage(mb_substr($error, 0, 1000));
// truncate error message to 1000 characters
$task->setUserFacingErrorMessage(mb_substr($userFacingError, 0, 1000));
$this->logger->warning('A TaskProcessing ' . $task->getTaskTypeId() . ' task with id ' . $id . ' failed with the following message: ' . $error);
} elseif ($result !== null) {
$taskTypes = $this->getAvailableTaskTypes();

17
lib/public/TaskProcessing/Exception/ProcessingException.php
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@ -16,4 +16,21 @@ namespace OCP\TaskProcessing\Exception;
* @since 30.0.0
*/
class ProcessingException extends \RuntimeException {
private string $userFacingMessage;
/**
* @since 33.0.0
*/
public function getUserFacingMessage(): string {
return $this->userFacingMessage;
}
/**
* @since 33.0.0
*/
public function setUserFacingMessage(string $userFacingMessage): void {
$this->userFacingMessage = $userFacingMessage;
}
}

4
lib/public/TaskProcessing/IManager.php
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@ -133,11 +133,13 @@ interface IManager {
* @param string|null $error
* @param array|null $result
* @param bool $isUsingFileIds
* @param string|null $userFacingError
* @throws Exception If the query failed
* @throws NotFoundException If the task could not be found
* @since 30.0.0
* @aince 33.0.0 Added `userFacingError` parameter
*/
public function setTaskResult(int $id, ?string $error, ?array $result, bool $isUsingFileIds = false): void;
public function setTaskResult(int $id, ?string $error, ?array $result, bool $isUsingFileIds = false, ?string $userFacingError = null): void;
/**
* @param int $id

39
lib/public/TaskProcessing/Task.php
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@ -31,8 +31,24 @@ final class Task implements \JsonSerializable {
protected int $lastUpdated;
protected ?string $webhookUri = null;
protected ?string $webhookMethod = null;
/**
* @psalm-var self::STATUS_*
*/
protected int $status = self::STATUS_UNKNOWN;
protected ?int $scheduledAt = null;
protected ?int $startedAt = null;
protected ?int $endedAt = null;
protected bool $allowCleanup = true;
protected ?string $userFacingErrorMessage = null;
/**
* @since 30.0.0
*/
@ -58,15 +74,6 @@ final class Task implements \JsonSerializable {
*/
public const STATUS_UNKNOWN = 0;
/**
* @psalm-var self::STATUS_*
*/
protected int $status = self::STATUS_UNKNOWN;
protected ?int $scheduledAt = null;
protected ?int $startedAt = null;
protected ?int $endedAt = null;
protected bool $allowCleanup = true;
/**
* @param string $taskTypeId
@ -389,4 +396,18 @@ final class Task implements \JsonSerializable {
default => 'STATUS_UNKNOWN',
};
}
/**
* @since 33.0.0
*/
public function setUserFacingErrorMessage(?string $userFacingErrorMessage): void {
$this->userFacingErrorMessage = $userFacingErrorMessage;
}
/**
* @since 33.0.0
*/
public function getUserFacingErrorMessage(): ?string {
return $this->userFacingErrorMessage;
}
}