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117 lines
3.3 KiB
PHP
117 lines
3.3 KiB
PHP
<?php
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declare(strict_types=1);
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/*
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* @copyright 2022 Christoph Wurst <christoph@winzerhof-wurst.at>
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*
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* @author 2021 Christoph Wurst <christoph@winzerhof-wurst.at>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace OC\Talk;
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use OC\AppFramework\Bootstrap\Coordinator;
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use OCP\IServerContainer;
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use OCP\Talk\Exceptions\NoBackendException;
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use OCP\Talk\IBroker;
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use OCP\Talk\IConversation;
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use OCP\Talk\IConversationOptions;
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use OCP\Talk\ITalkBackend;
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use Psr\Log\LoggerInterface;
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use RuntimeException;
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use Throwable;
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class Broker implements IBroker {
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private Coordinator $coordinator;
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private IServerContainer $container;
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private LoggerInterface $logger;
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private ?bool $hasBackend = null;
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private ?ITalkBackend $backend = null;
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public function __construct(Coordinator $coordinator,
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IServerContainer $container,
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LoggerInterface $logger) {
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$this->coordinator = $coordinator;
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$this->container = $container;
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$this->logger = $logger;
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}
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public function hasBackend(): bool {
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if ($this->hasBackend !== null) {
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return $this->hasBackend;
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}
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$context = $this->coordinator->getRegistrationContext();
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if ($context === null) {
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// Backend requested too soon, e.g. from the bootstrap `register` method of an app
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throw new RuntimeException("Not all apps have been registered yet");
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}
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$backendRegistration = $context->getTalkBackendRegistration();
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if ($backendRegistration === null) {
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// Nothing to do. Remember and exit.
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return $this->hasBackend = false;
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}
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try {
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$this->backend = $this->container->get(
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$backendRegistration->getService()
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);
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// Remember and return
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return $this->hasBackend = true;
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} catch (Throwable $e) {
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$this->logger->error("Talk backend {class} could not be loaded: " . $e->getMessage(), [
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'class' => $backendRegistration->getService(),
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'exception' => $e,
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]);
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// Temporary result. Maybe the next time the backend is requested it can be loaded.
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return false;
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}
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}
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public function newConversationOptions(): IConversationOptions {
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return ConversationOptions::default();
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}
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public function createConversation(string $name,
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array $moderators,
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?IConversationOptions $options = null): IConversation {
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if (!$this->hasBackend()) {
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throw new NoBackendException("The Talk broker has no registered backend");
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}
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return $this->backend->createConversation(
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$name,
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$moderators,
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$options ?? ConversationOptions::default()
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);
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}
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public function deleteConversation(string $id): void {
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if (!$this->hasBackend()) {
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throw new NoBackendException("The Talk broker has no registered backend");
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}
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$this->backend->deleteConversation($id);
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}
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}
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