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Diffstat (limited to 'lib/private/Talk/Broker.php')
-rw-r--r-- | lib/private/Talk/Broker.php | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/lib/private/Talk/Broker.php b/lib/private/Talk/Broker.php new file mode 100644 index 00000000000..a686adeed04 --- /dev/null +++ b/lib/private/Talk/Broker.php @@ -0,0 +1,109 @@ +<?php + +declare(strict_types=1); + +/* + * @copyright 2022 Christoph Wurst <christoph@winzerhof-wurst.at> + * + * @author 2021 Christoph Wurst <christoph@winzerhof-wurst.at> + * + * @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\Talk; + +use OC\AppFramework\Bootstrap\Coordinator; +use OCP\IServerContainer; +use OCP\Talk\Exceptions\NoBackendException; +use OCP\Talk\IBroker; +use OCP\Talk\IConversation; +use OCP\Talk\IConversationOptions; +use OCP\Talk\ITalkBackend; +use Psr\Log\LoggerInterface; +use RuntimeException; +use Throwable; + +class Broker implements IBroker { + private Coordinator $coordinator; + + private IServerContainer $container; + + private LoggerInterface $logger; + + private ?bool $hasBackend = null; + + private ?ITalkBackend $backend = null; + + public function __construct(Coordinator $coordinator, + IServerContainer $container, + LoggerInterface $logger) { + $this->coordinator = $coordinator; + $this->container = $container; + $this->logger = $logger; + } + + public function hasBackend(): bool { + if ($this->hasBackend !== null) { + return $this->hasBackend; + } + + $context = $this->coordinator->getRegistrationContext(); + if ($context === null) { + // Backend requested too soon, e.g. from the bootstrap `register` method of an app + throw new RuntimeException("Not all apps have been registered yet"); + } + $backendRegistration = $context->getTalkBackendRegistration(); + if ($backendRegistration === null) { + // Nothing to do. Remember and exit. + return $this->hasBackend = false; + } + + try { + $this->backend = $this->container->get( + $backendRegistration->getService() + ); + + // Remember and return + return $this->hasBackend = true; + } catch (Throwable $e) { + $this->logger->error("Talk backend {class} could not be loaded: " . $e->getMessage(), [ + 'class' => $backendRegistration->getService(), + 'exception' => $e, + ]); + + // Temporary result. Maybe the next time the backend is requested it can be loaded. + return false; + } + } + + public function newConversationOptions(): IConversationOptions { + return ConversationOptions::default(); + } + + public function createConversation(string $name, + array $moderators, + IConversationOptions $options = null): IConversation { + if (!$this->hasBackend()) { + throw new NoBackendException("The Talk broker has no registered backend"); + } + + return $this->backend->createConversation( + $name, + $moderators, + $options ?? ConversationOptions::default() + ); + } +} |