mirror of
https://github.com/netzbegruenung/circles.git
synced 2024-05-11 07:36:07 +02:00
7c0e514d04
Signed-off-by: Maxence Lange <maxence@artificial-owl.com>
296 lines
7.5 KiB
PHP
296 lines
7.5 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* Circles - Bring cloud-users closer together.
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*
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* This file is licensed under the Affero General Public License version 3 or
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* later. See the COPYING file.
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*
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* @author Maxence Lange <maxence@artificial-owl.com>
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* @copyright 2021
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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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*/
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namespace OCA\Circles\Service;
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use daita\MySmallPhpTools\Traits\Nextcloud\nc22\TNC22Logger;
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use daita\MySmallPhpTools\Traits\TAsync;
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use Exception;
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use OCA\Circles\Db\CircleRequest;
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use OCA\Circles\Db\MemberRequest;
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use OCA\Circles\Exceptions\CircleNotFoundException;
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use OCA\Circles\Exceptions\FederatedEventDSyncException;
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use OCA\Circles\Exceptions\FederatedEventException;
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use OCA\Circles\Exceptions\FederatedItemException;
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use OCA\Circles\Exceptions\InitiatorNotConfirmedException;
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use OCA\Circles\Exceptions\MemberNotFoundException;
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use OCA\Circles\Exceptions\OwnerNotFoundException;
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use OCA\Circles\Exceptions\RequestBuilderException;
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use OCA\Circles\Model\Federated\FederatedEvent;
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/**
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* Class RemoteDownstreamService
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*
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* @package OCA\Circles\Service
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*/
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class RemoteDownstreamService {
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use TNC22Logger;
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use TAsync;
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/** @var CircleRequest */
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private $circleRequest;
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/** @var MemberRequest */
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private $memberRequest;
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/** @var FederatedEventService */
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private $federatedEventService;
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/** @var ConfigService */
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private $configService;
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/**
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* RemoteDownstreamService constructor.
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*
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* @param CircleRequest $circleRequest
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* @param MemberRequest $memberRequest
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* @param FederatedEventService $federatedEventService
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* @param ConfigService $configService
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*/
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public function __construct(
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CircleRequest $circleRequest,
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MemberRequest $memberRequest,
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FederatedEventService $federatedEventService,
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ConfigService $configService
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) {
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$this->setup('app', 'circles');
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$this->circleRequest = $circleRequest;
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$this->memberRequest = $memberRequest;
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$this->federatedEventService = $federatedEventService;
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$this->configService = $configService;
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}
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//
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//
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// /**
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// * @param GSEvent $event
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// *
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// * @throws CircleDoesNotExistException
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// * @throws ConfigNoCircleAvailableException
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// * @throws GSKeyException
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// * @throws GlobalScaleDSyncException
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// * @throws GlobalScaleEventException
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// */
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// public function statusEvent(GSEvent $event) {
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// $this->globalScaleService->checkEvent($event);
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//
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// $gs = $this->globalScaleService->getGlobalScaleEvent($event);
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// $gs->verify($event, false);
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// $gs->manage($event);
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// }
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//
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/**
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* @param FederatedEvent $event
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*
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* @throws FederatedEventDSyncException
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* @throws FederatedEventException
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* @throws InitiatorNotConfirmedException
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* @throws OwnerNotFoundException
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* @throws FederatedItemException
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*/
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public function requestedEvent(FederatedEvent $event): void {
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$item = $this->federatedEventService->getFederatedItem($event, true);
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if (!$this->configService->isLocalInstance($event->getCircle()->getInstance())) {
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throw new FederatedEventDSyncException('Circle is not from this instance');
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}
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if ($event->isLimitedToInstanceWithMember()) {
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$instances = $this->memberRequest->getMemberInstances($event->getCircle()->getSingleId());
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if (!in_array($event->getIncomingOrigin(), $instances)) {
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throw new FederatedEventException('Instance have no members in this Circle');
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}
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}
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$this->federatedEventService->confirmInitiator($event, false);
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$this->confirmContent($event, true);
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$item->verify($event);
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if ($event->isDataRequestOnly()) {
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return;
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}
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$filter = [];
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if (!$event->isAsync()) {
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$item->manage($event);
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// we dont filter anymore as some data might be change during the remote verify()
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// $filter[] = $event->getIncomingOrigin();
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}
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$this->federatedEventService->initBroadcast($event, $filter);
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}
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/**
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* @param FederatedEvent $event
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*/
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public function incomingEvent(FederatedEvent $event): void {
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try {
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$gs = $this->federatedEventService->getFederatedItem($event, false);
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$this->confirmOriginEvent($event);
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$this->confirmContent($event, false);
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$gs->manage($event);
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} catch (Exception $e) {
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$this->e($e, ['event' => $event]);
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}
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}
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/**
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* @param FederatedEvent $event
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* @param bool $full
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*
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* @throws FederatedEventDSyncException
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* @throws OwnerNotFoundException
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*/
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private function confirmContent(FederatedEvent $event, bool $full = true): void {
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$this->confirmCircle($event);
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$this->confirmMember($event, $full);
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}
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/**
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* @param FederatedEvent $event
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*
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* @throws OwnerNotFoundException
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* @throws FederatedEventDSyncException
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*/
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private function confirmCircle(FederatedEvent $event): void {
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if ($event->canBypass(FederatedEvent::BYPASS_LOCALCIRCLECHECK) || $this->verifyCircle($event)) {
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return;
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}
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throw new FederatedEventDSyncException('Could not verify Circle');
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}
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/**
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* @param FederatedEvent $event
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*
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* @return bool
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* @throws OwnerNotFoundException
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* @throws RequestBuilderException
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*/
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private function verifyCircle(FederatedEvent $event): bool {
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$circle = $event->getCircle();
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try {
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$localCircle = $this->circleRequest->getCircle($circle->getSingleId(), null, null, 0);
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} catch (CircleNotFoundException $e) {
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return false;
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}
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if (!$localCircle->compareWith($circle)) {
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$this->debug(
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'failed to compare Circles',
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['localCircle' => json_encode($localCircle), 'circle' => json_encode($circle)]
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);
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return false;
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}
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return true;
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}
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/**
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* @param FederatedEvent $event
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* @param bool $full
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* // TODO: Check IFederatedItemMember*
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*
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* @throws FederatedEventDSyncException
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*/
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private function confirmMember(FederatedEvent $event, bool $full): void {
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if ($event->canBypass(FederatedEvent::BYPASS_LOCALMEMBERCHECK) || !$event->hasMember()
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|| $this->verifyMember($event, $full)) {
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return;
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}
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throw new FederatedEventDSyncException('Could not verify Member');
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}
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/**
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* @param FederatedEvent $event
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* @param bool $full
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*
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* @return bool
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*/
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private function verifyMember(FederatedEvent $event, bool $full): bool {
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$this->debug('verifyMember()', ['event' => $event]);
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$member = $event->getMember();
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try {
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$localMember = $this->memberRequest->getMember($member->getId());
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} catch (MemberNotFoundException $e) {
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$this->debug('Member not found', ['member' => $member]);
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return false;
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}
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if (!$localMember->compareWith($member, $full)) {
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$this->debug(
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'failed to compare Members',
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['localMember' => json_encode($localMember), 'member' => json_encode($member)]
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);
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return false;
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}
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return true;
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}
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/**
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* @param FederatedEvent $event
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*
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* @throws FederatedEventException
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* @throws OwnerNotFoundException
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*/
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private function confirmOriginEvent(FederatedEvent $event): void {
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if ($event->getIncomingOrigin() !== $event->getCircle()->getInstance()) {
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$this->debug('invalid origin', ['event' => $event]);
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throw new FederatedEventException('invalid origin');
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}
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}
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}
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